DENNE LISTE ER UNDER OPBYGNING: FORELØBIG ER HENTET UDVALGTE NYHEDER FRA d. 5., 6., 7., 8., 9., 10., 11., 12., 13, 14., 15., 16., 17. marts 2017

Bemærk at d. 1., 2., 3. og 4. marts 2017 er medtaget i:

http://uglesiden.wikispaces.com/nyhederudvalgte2017februar


- injektion af lægemiddel uden brug af nål - computerstyret metode vinder opfinderpris

Device promises injections without needlesA computerised system for injecting medicine without using needles has won an innovation award at the South by SouthWest Interactive technology conference in Austin, Texas.

acupunktur frigiver stamceller der lindrer smerte og fremme vævsreparation

Electroacupuncture releases stem cells to relieve pain, promote tissue repair, study findsA new study demonstrates how electroacupuncture triggers a neurological mechanism that can help promote tissue repair and relieve injury-induced pain. The findings provide the most comprehensive picture yet of how electroacupuncture stimulates the brain to facilitate the release of stem cells and adds new insight relating to the cells' healing properties.

autisme og D-vitamin (drægtige mus: D-vitamin forhindrede autismetræk i at udvikles i afkommet)

Link between Vitamin D treatment and autism preventionGiving vitamin D supplements to mice during pregnancy prevents autism traits in their offspring, University of Queensland researchers have discovered. The discovery provides further evidence of the crucial role vitamin D plays in brain development, said lead researcher Professor Darryl Eyles, from UQ's Queensland Brain Institute.

autisme: ny blodtest giver mulighed for tidlig diagnose

New autism blood test likely to join ranks of also-ransA new blood test for autism promises to catch the condition much earlier than standard interventions. Here’s why it probably won’t change anything

autisme: ny blodtest giver mulighed for tidlig diagnose

New analysis method of metabolites accurately predicts whether a child has autismScientists have developed a new, highly accurate method that analyzes metabolic biomarkers to assess whether a child is on the autism spectrum.

biologisk ur fundet i noget af det ældste liv - cyanobakterier

Molecular clockwork from cyanobacteriaAuthor: L. Bryan Ray

biologisk ur fundet i noget af det ældste liv - cyanobakterier

[Research Article] Structural basis of the day-night transition in a bacterial circadian clockCircadian clocks are ubiquitous timing systems that induce rhythms of biological activities in synchrony with night and day. In cyanobacteria, timing is generated by a posttranslational clock consisting of KaiA, KaiB, and KaiC proteins and a set of output signaling proteins, SasA and CikA, which transduce this rhythm to control gene expression. Here, we describe crystal and nuclear magnetic resona

biologisk ur fundet i noget af det ældste liv - cyanobakterier

Structures of the cyanobacterial circadian oscillator frozen in a fully assembled stateCyanobacteria have a robust circadian oscillator, known as the Kai system. Reconstituted from the purified protein components KaiC, KaiB, and KaiA, it can tick autonomously in the presence of adenosine 5'-triphosphate (ATP). The KaiC hexamers enter a natural 24-hour reaction cycle of autophosphorylation and assembly with KaiB and KaiA in numerous diverse forms. We describe the preparation of stoic

biologisk ur fundet i noget af det ældste liv - cyanobakterier

Operation of ancient biological clock uncoveredA team of Dutch and German researchers has discovered the operation of one of the oldest biological clocks in the world, which is crucial for life on earth as we know it. The researchers applied a new combination of cutting-edge research techniques. They discovered how the biological clock in cyanobacteria works in detail. Important to understand life, because cyanobacteria were the first organism

biologisk ur fundet i noget af det ældste liv - cyanobakterier

Operation of ancient biological clock uncoveredThe operation of one of the oldest biological clocks in the world has, which is crucial for life on earth as we know it, has now been discovered by scientists. The researchers applied a new combination of cutting-edge research techniques. They discovered how the biological clock in cyanobacteria works in detail. Important to understand life, because cyanobacteria were the first organisms on earth

kræft: virus skabt til selektivt at angribe kræftceller - i ny metode der udnytter at visse proteiner udtrykkes forskelligt i kræftceller end i raske celler så virus kun inficerer kræftcellerne

Viruses created to selectively attack tumor cellsIt is an innovative approach that takes advantage of the different expression profiles of certain proteins between tumor and healthy cells that make the virus to only infect the first ones.

CRISPR kan øge produktionen af afgrøder i fremtiden - vi bliver 9,7 mia. i 2050

Genome editors take on cropsThe global population is expected to rise from 7.3 billion to 9.7 billion by 2050 (1). At the same time, climate change poses increasing risks to crop production through droughts and pests (2). Improved crops are thus urgently needed to meet growing demand for food and address changing climatic conditions. Genome-editing technologies such as the CRISPR (clustered regularly interspaced short palind

fugle på Cypern: 2,3 millioner fugle dræbes her årligt

Cyprus poachers kill 2.3 million songbirds in 2016Poachers in Cyprus killed an estimated 2.3 million birds in autumn 2016, including 800,000 on a British military base, conservation groups said Thursday.

fødsel: for tidlig fødsel ændrer barnets reaktion på let berøring

Premature babies’ brains respond differently to gentle touchingBabies born very early miss out on weeks of development in the womb and experience painful procedures. This seems to alter their response to touch

fødsel: for tidlig fødsel ændrer barnets reaktion på let berøring

A prescription for touch: Early experiences shape preterm babies' brainsNewborn babies experience the world through touch. Now, researchers who have measured the brain responses of 125 infants -- including babies who were born prematurely and others who went full-term -- show that a baby's earliest experiences of touch have lasting effects on the way their young brains respond to gentle touch when they go home.

gensplejsning: omkodning (recoding) af genetisk information muliggør hurtig genetisk ændring

Recoded organism paves way to new genetic language of lifeA new technique has allowed a quicker way of recoding genetic information, which could allow us to design fresh life forms with useful properties from scratch

glas superhårdt lavet af gennemsigtigt keramik med kubisk siliciumnitrid - vil kunne bruges i maskiner under stort tryk

Transparent ceramics make super-hard windowsScientists have synthesised the first transparent sample of a popular industrial ceramic at DESY. The result is a super-hard window made of cubic silicon nitride that can potentially be used under extreme conditions like in engines, as the Japanese-German team writes in the journal Scientific Reports. Cubic silicon nitride (c-Si3N4) forms under high pressure and is the second hardest transparent n

glas superhårdt lavet af gennemsigtigt keramik med kubisk siliciumnitrid - vil kunne bruges i maskiner under stort tryk

Transparent ceramics make super-hard windowsScientists have synthesized the first transparent sample of a popular industrial ceramic. The result is a super-hard window made of cubic silicon nitride that can potentially be used under extreme conditions like in engines. Cubic silicon nitride (c-Si3N4) forms under high pressure and is the second hardest transparent nanoceramic after diamond but can withstand substantially higher temperatures.

græsser: ny opdagelse af hvad der gjorde græsser så succesfulde (pga af læbecellernes fysiologi)

Mobile MUTE specifies subsidiary cells to build physiologically improved grass stomataPlants optimize carbon assimilation while limiting water loss by adjusting stomatal aperture. In grasses, a developmental innovation—the addition of subsidiary cells (SCs) flanking two dumbbell-shaped guard cells (GCs)—is linked to improved stomatal physiology. Here, we identify a transcription factor necessary and sufficient for SC formation in the wheat relative Brachypodium distachyon. Unexpect

græsser: ny opdagelse af hvad der gjorde græsser så succesfulde (pga af læbecellernes fysiologi)

How improved valves let grasses 'breathe,' cope with climate changeNew work from a joint team of plant biologists and ecologists from Carnegie and Stanford University has uncovered the factor behind an important innovation that makes grasses—both the kind that make up native prairies and the kind we've domesticated for crops—among the most-common and widespread plants on the planet. Their findings may enable the production of plants that perform better in warmer

græsser: ny opdagelse af hvad der gjorde græsser så succesfulde (pga af læbecellernes fysiologi)

Stanford scientists reveal how grass developed a better way to breatheGrasses are better able to withstand drought or high temperatures than many other plants in large part due to changes in their pores, called stomata. Stanford scientists have discovered how grasses produce these altered pores, which could someday lead to crops that can better survive climate change.

græsser: ny opdagelse af hvad der gjorde græsser så succesfulde (pga af læbecellernes fysiologi)

How improved valves let grasses 'breathe,' cope with climate changeNew work from a joint team of plant biologists and ecologists has uncovered the factor behind an important innovation that makes grasses -- both the kind that make up native prairies and the kind we've domesticated for crops -- among the most-common and widespread plants on the planet. Their findings may enable the production of plants that perform better in warmer and dryer climate conditions.

kræft: immunterapi - den fjerde søjle i kræftbehandlingen ud over kemoterapi, stråling og kirurgi.

Cancer immunotherapy comes of ageOncologists have long rested their treatment plans on three so-called "pillars"—chemotherapy, surgery, and radiation. But in recent years, scientists have been busily erecting a fourth pillar: immunotherapy. The idea of harnessing the immune system to fight cancer has already moved from the lab to the clinic, thanks to technologies such as checkpoint inhibitors and genetically engineered immune ce

kræft: Ny metode afprøves - i stedet for at give vedvarende stor dosis kemoterapi forsøges med pauser da resistens måske derfor kan undgås ifølge teoretiske modeller

[Special Issue News] When less is moreFor decades, cancer treatments have been given to patients continually at the maximum dose that can be tolerated. But a few labs are challenging that dogma. They are motivated by theoretical models of cancer growth and evidence from animal studies suggesting that briefly stopping or cutting back a drug dose can help keep the cancer cells from becoming resistant to the drug and can even trigger som

naturinteresse: børn de leger udendørs bliver mere naturbeskyttende som voksne

Children who play outside more likely to protect nature as adultsProtecting the environment can be as easy as telling your kids to go outdoors and play, according to a new UBC study.Research by Catherine Broom, assist. prof. in the Faculty of Education at UBC Okanagan, shows that 87 per cent of study respondents who played outside as children expressed a continued love of nature as young adults. Of that group, 84 per cent said taking care of the environment was

naturinteresse: børn de leger udendørs bliver mere naturbeskyttende som voksne

Children who play outside more likely to protect nature as adultsProtecting the environment can be as easy as telling your kids to go outdoors and play, according to a new UBC study.

næsebor større i varmt klima og mindre i koldt klima - menneskets evolution

Climate may have shaped the evolution of the human nose From Our Blogs: Nexus Media News Nature's nose job Climate has shaped the human nose, producing wider nostrils in warmer regions and smaller nostrils in cooler regions. Read on:…

næsebor større i varmt klima og mindre i koldt klima - menneskets evolution

Temperature and humidity of ancestral environment are linked to differences in nostril width across human populationsBig, small, broad, narrow, long or short, turned up, pug, hooked, bulbous or prominent, humans inherit their nose shape from their parents, but ultimately, the shape of someone's nose and that of their parents was formed by a long process of adaptation to our local climate, according to an international team of researchers.

Roundup ikke kræftfremkaldende siger EU

Europa giver læger en kold skulder og frikender Roundups hovedingrediens for kræftanklageOgså EU's kemikalieagentur går imod førende kræftlæger og fastslår, at verdens mest solgte sprøjtemiddel, glyphosat, ikke er kræftfremkaldende. Det baner vejen for yderligere 15 års godkendelse.

sommerfugle: britisk mand dømmes for at dræbe to sjældne sommerfugle i Storbritannien - Large Blues

Rare butterfly killer convicted in BritainA British man has been convicted of capturing and killing two of Britain's rarest butterflies, the endangered Large Blues, which have been a prized collector's item since the Victorian era.

stamcellebehandling af øjet (ældre med macular degeneration) første forsøg med lille positiv virkning foretaget i Japan

[In Depth] iPS cell therapy reported safeJapanese researchers reported this week that the first trial of induced pluripotent stem (iPS) cells in a human has proved safe and effective in halting the progression of age-related macular degeneration (AMD), though there was minimal improvement in vision. AMD is the leading cause of vision loss in the elderly. The team took a skin sample from the patient and derived iPS cells, which can be use

stamcellebehandling af øjet medfører tab af synet på tre kvinder i Florida (ældre med macular degeneration) (stamceller fra fedtvæv)

NYTIMES

Patients Lose Sight After Stem Cells Are Injected Into Their EyesThree women suffered severe eye damage at a Florida clinic, exposing gaps in protections for people seeking unproven treatments.

stamcellebehandling af øjet medfører tab af synet på tre kvinder i Florida (ældre med macular degeneration) (stamceller fra fedtvæv)

Women Lose Vision After Stem Cell TreatmentThe adipose-derived cells were injected into the patients’ eyes to treat age-related macular degeneration.

Trump og klima

Trump’s Budget Would Mean Catastrophe for U.S. Climate ProgramsThe cuts would defang EPA climate efforts, halt ARPA-E’s clean-energy investments, and stop contributions to UN climate-change programs.

==Trump og milj==ø

Trump Budget Cuts Funds for EPA by 31 PercentThe White House wants to slash nearly half the budget of EPA's Office of Research and Development, which does most of agency's science work --

Trump og science

Trump: Lad videnskaben betale for forsvar og sikkerhedDet amerikanske finanslovforslag har store besparelser på miljø, sundhed og videnskab. Nasa er nogenlunde uberørt. Forslaget kommer dog ikke gennem kongressen uden ændringer.

Trump og science

Trump budget 'cripples' environment, science, critics say (Update)US President Donald Trump's proposed 2018 budget would slash funding for science, health and environmental programs at home and abroad, sparking an outcry Thursday among experts who say the cuts would endanger the planet.

Trump og science medical

Trump Administration Proposes Big Cuts In Medical Research The National Institutes of Health, which funds research in treatments and cures, could lose 20 percent of its budget under the administration's proposal. More money would go for addiction treatment.

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

NPR

How One Of The World's Toughest Creatures Can Bring Itself Back To Life The tardigrade, a strange animal smaller than a grain of sand and with hooks for feet, can survive in a dried-up state for a decade. Its secret might help improve how drugs are shipped and stored.

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

Trilobites: How a Water Bear Survives, Even When It’s DryThe microscopic animals were found to produce a unique protein that coats the molecules in their cells in a glasslike substance.

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

Unstructured Proteins Help Tardigrades Survive DesiccationProteins with unstable 3-D structures help the microscopic animals withstand drying.

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

Tardigrades use unique protein to protect themselves from desiccationTardigrades, the microscopic animals also known as water bears and moss piglets, have captured the imagination of scientists for almost 250 years, thanks to their Muppet-like appearance and their ability to survive extreme environments that would destroy most other living things. One of these skills is the ability to endure being dried out for up to a decade or longer. In Molecular Cell on March 1

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

Tardigrades turn into glass to survive complete dehydrationWater bears make unique jelly proteins that form a glass-like cocoon to protect them from drought. The find could one day help make drought resistant crops

tørke: tardigrader overlever udtørring på grund et ustruktureret protein

Tardigrades use unique protein to protect themselves from desiccationTardigrades have captured the imagination of scientists for almost 250 years, thanks to their ability to survive extreme environments that would destroy most other living things. One of these skills is the ability to endure being dried out for up to a decade or longer. Scientists report that this knack for survival is due to a unique set of proteins they dubbed tardigrade-specific intrinsically di

uddøen i trias

Paleozoic echinoderm hangover: Waking up in the TriassicThe end-Paleozoic witnessed the most devastating mass extinction in Earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors. Echinoderms are among the marine invertebrates that suffered the most severe losses at the end-Permian extinction.

uddøen i trias

Paleozoic echinoderm hangover: Waking up in the TriassicThe end-Paleozoic witnessed the most devastating mass extinction in Earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors. Echinoderms are among the marine invertebrates that suffered the most severe losses at the end-Permian extinction. Or were they?



antibiotikaresistens - MRSA - bekæmpelse med nyt membranbrydende stof

Fighting MRSA with new membrane-busting compoundsPublic health officials are increasingly concerned over methicillin-resistant Staphylococcus aureus (MRSA). The bacteria have 11111developed resistance to a number of treatments, even antibiotics of last resort in some cases. Now researchers report in ACS' journal Bioconjugate Chemistry that a new class of compounds can treat MRSA skin infections in mice with no signs of acute toxicity, and no signs th

antibiotikaresistens -forskere har opdaget gener der kan inaktivere resistensen

Superbakteriers følsomhed overfor antibiotika kan genoprettesDanske forskere har opdaget gener, som er afgørende for bakteriers resistens mod antibiotika.

autisme - tidlig påvisning ved at bedsteforældre eller søskende opdager det

Grandma may spot signs of autism before parents doEarly detection is critical for improving treatment outcomes for children with autism spectrum disorder (ASD), but sometimes parents aren’t the first people to notice the signs. A new study published in the journal Autism shows that children who have frequent interaction with grandparents or older siblings are diagnosed earlier with ASD. The study not only asked parents, but also friends and fami

autisme - årsag til ringe socialiseringsevne

The genes, neural circuits behind autism's impaired sociabilityNew insight has been gained into the genetic and neuronal circuit mechanisms that may contribute to impaired sociability in some forms of Autism Spectrum Disorder.

autismegener fik os til at blive smartere

Yale Researchers Find That Autism Genes Helped Us to Become SmarterThe study might also help us to identify the prodigy gene, should it exist.

blodtypebestemmelse på ½ minut med papirstrimmel

A new test can detect your blood type with color-changing paperHealth It could be crucial in emergency situations and remote areas A new paper-based blood test can detect a person's blood type in 30 seconds, which could be useful in emergency and remote scenarios.

blodtypebestemmelse på ½ minut med papirstrimmel

O my! Paper strip test determines blood type in just 30 secondsWhen people can’t communicate their blood type, it can waste time in emergencies and put pressure on supplies of donor blood. A new test could change that

chimpanse udføres begravelsesritual

Chimp filmed cleaning a corpse’s teeth in a mortuary-like ritualThe never-before-seen behaviour suggests that chimpanzees can be curious about death and may shed light on the origins of human mortuary practices

genterapi på embryon - første resultat på levende humant embryon

Mosaic problem stands in the way of gene editing embryosThe first results of gene editing in viable human embryos reveals it works better than we thought, but that there’s another big problem blocking the way

hapatitis C mutationer overløber immunsystemet

Hepatitis C mutations 'outrun' immune systems, lab study showsUnlike its viral cousins hepatitis A and B, hepatitis C virus (HCV) has eluded the development of a vaccine and infected more than 170 million people worldwide. Now, researchers report that a novel laboratory tool that lets them find virus mutations faster and more efficiently than ever before has identified a biological mechanism that appears to play a big role in helping HCV evade both the natur

hash - hvad sker i hjernen første gang en teenager tager hash

Teen Brain on Pot: New Study Examines First ExposuresA new long-term study could show scientists how first exposures to marijuana affect the teenage brain.

HIV - skjulte reservoir i kroppen kan påvises med protein

Hidden HIV reservoirs exposed by telltale proteinThe discovery helps to identify dormant infected cells and could one day lead to a cure

HIV - skjulte reservoir i kroppen kan påvises med protein

Hidden HIV Reservoirs Exposed by Telltale ProteinThe discovery may help doctors identify elusive infected cells in the body --

hjerneområder kan bringes i sync med hinanden med lavspændingsstrøm

Researchers found that applying a low voltage current can bring different areas of the brain in sync with one another, enabling people to perform better on tasks involving working memory.submitted by /u/SophiaDevetzi [link] [comments]

kunstigt kød - kylling fra stamceller

Say Hello to Finger-Lickin’ Lab-Grown ChickenThe first animal-free chicken strips are here—but they’ll cost you $9,000 per pound.

limvirkning af molekyle som kiles ind mellem to molekyler som ikke kan nærme sig hinanden helt på grund af modsatrettede kræfter

The repulsion trick: A self-solving puzzle for organic moleculesJülich researchers have succeeded in controlling the growth of organic molecules using a special trick. Molecules that repel each other play a key role in this process: due to their opposing forces, they always keep a certain distance from their neighbours. Therefore, they mix easily with a second, mutually attracting type of molecule that enters the spaces in-between and acts as a sort of "glue".

livets opståen - opdagelseaf uorganiske stoffer der an selv-organisere sig til komplekse strukturer

Fossil or inorganic structure? Scientists dig into early life formsAn international team of researchers discovered that inorganic chemicals can self-organize into complex structures that mimic primitive life on Earth.

motion ved helkrops-vibrationer

Whole-body vibration may be as effective as regular exerciseA less strenuous form of exercise known as whole-body vibration (WBV) can mimic the muscle and bone health benefits of regular exercise in mice, according to a new study. WBV consists of a person sitting, standing or lying on a machine with a vibrating platform. When the machine vibrates, it transmits energy to the body, and muscles contract and relax multiple times during each second.

phosphat næringskilde - hjælpe planten via jordbakterier

Researchers make discovery that could increase plant yield in wake of looming phosphScientists at the University of North Carolina at Chapel Hill have pinpointed a key genetic switch that helps soil bacteria living on and inside a plant's roots harvest a vital nutrient with limited global supply. The nutrient, phosphate, makes it to the plant's roots, helping the plant increase its yield.

selvlysende frø

Forskere finder første selvlysende frø i ArgentinaIndtil nu har neonlys mest hørt havet til. Men nu er verdens første fluorescerende frø fundet.

skildpadde styres med menneske-tanke

Controlling turtle motion with human thoughtKorean researchers have developed a technology that can remotely control an animal's movement with human thought.

stamcelle-behandling gør tre kvinder blinde i Florida

3 Women in Florida Left Blind by Unproven Eye TreatmentThree women went blind after receiving an unproven stem cell treatment on their eyes at a Florida clinic, according to a new report of the cases.

stamcelle-behandling gør tre kvinder blinde i Florida

3 Women Blinded By Unproven Stem Cell TreatmentsThree patients were blinded after getting stem cells from fat at a Florida clinic. But a research study showed that induced pluripotent stem cells might someday help treat vision loss.

stamcelle-behandling gør tre kvinder blinde i Florida

Patients Lose Sight After Stem Cells Are Injected Into Their EyesThree women suffered severe eye damage at a Florida clinic, exposing gaps in protections for people seeking unproven treatments.

stamcellebehandling redder synet på en kvinde med macular degeneration

Vision saved by first induced pluripotent stem cell treatmentA woman with age-related macular degeneration seems to have had her vision stabilised thanks to a transplant of retinal cells generated from her skin

svampes evolution - svampe i rav

Intact mushroom and mycophagous rove beetle in Burmese amber leak early evolution of mushroomsMushrooms are common, conspicuous and morphologically diverse fungi. Most agaricomycete fruiting bodies are ephemeral, so they are extremely rare in fossils. Up to now, all described species of gilled mushrooms, or agaricales, have been known exclusively from amber. Two forms are from the Mesozoic, including the earliest mushrooms, Palaeoagaracites antiquus from 99-million-year-old Burmese amber,

åreforkalkning og natriumkaliumpumpen

Research team advances research on metabolic syndromeBuilding on their recent research focusing on a peptide designed to block the oxidant amplifying function of the cellular sodium-potassium pump, researchers have successfully demonstrated that pNaKtide, can attenuate the development of experimental nonalcoholic fatty liver disease (NAFLD) and atherosclerosis.

bakterier kommunikerer

Team finds new way that bacteria lay siege to neighboring cells by hijacking two factors involved in protein synthesisSo they can't use smartphones or WiFi, but bacteria have evolved some seriously complex strategies to communicate with one another. And the resulting interactions are a delicate balance of cooperation and, in some cases, competition.

drone til transport dræber barn

US launches probe after hoverboard fire kills two-year-oldA US safety agency said Wednesday it had launched an investigation into a hoverboard fire that killed a two-year-old girl, the first fatality involving the personal transport devices.

droner

Drones take research to new heightsIs it… a balloon? An airship of some sort, tethered to the turf? A children's pool, blown onto its side?

evolution af fårekyllinger

Rare cricket family sheds light on extinct Jurassic species' acousticsWorld-first research into a rare family of insects will help scientists understand how the common bush-crickets we are familiar with today developed their highly specialised acoustic functions.

evolution og religion - Texas undervisning

US states mull laws allowing religion in science classAngela Garlington feels alone in the way she teaches science at a high school in Odessa, a Texas city populated by oil field workers.

forurening i kinesiske byer pga klimaændring

Changing weather patterns are trapping pollution over Chinese citiesFrom Our Blogs: Nexus Media News Revealing the deadly effects of an invisible pollutant Climate change is creating stagnant weather conditions in China, trapping pollution over its major cities.

fotoner kan påvirke og ændre kemi

How photons change chemistryThe quantum nature of light usually does not play an important role when considering the chemical properties of atoms or molecules. In an article published in the Proceedings of the National Academy of Sciences scientists from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg show, however, that under certain conditions, photons can strongly influence chemistry. These re

glyphosat - diskussion om kræftrisiko

Emails Reveal Monsanto's Tactics To Defend Glyphosate Against Cancer FearsInternal emails show Monsanto executives scrambling to counter a U.N. agency's finding that glyphosate, the chemical in Roundup, can cause cancer. One email proposed "ghost-writing" scientific papers.

Google Maps app - trick

6 quick tricks for doing more with Google MapsDIY Get from A to B much faster The Google Maps app has transformed the way we get around, but are you making the most of its features? Here are six you might not have come across.

hackerangreb - 500 mill. Yahoo konti

Cascading effect: One attack led to another at YahooRussian hackers working with Russian spies didn't crack Yahoo security all at once.

hackerangreb - 500 mill. Yahoo konti

Kremlin denies involvement after Yahoo cyberattack chargesThe Kremlin on Thursday denied any official Russian involvement in cybercrimes after the US indicted two FSB intelligence agents over cyberattacks on Yahoo that compromised 500 million accounts.

hackerangreb - 500 mill. Yahoo konti

Russia runs up cyber score against US with Yahoo, election hacksUS charges that Russia's FSB security service was behind the hacking of Yahoo underscored a worrisome run of successes in Moscow's cyber-efforts against its longtime rival.

hackerangreb - 500 mill. Yahoo konti

US charges two Russian spies in massive Yahoo cyberattack (Update)Two Russian intelligence agents and a duo of hackers were indicted Wednesday over a data breach that compromised 500 million Yahoo accounts in one of the largest cyberattacks in history.

hackerangreb - 500 mill. Yahoo konti

Yahoo breach spotlights links between Russian spies, hackersA U.S. indictment of two Russian intelligence agents and two hackers alleged to have stolen more than half a billion U.S. email accounts in 2014 has cast a spotlight on the intertwining of the Russian security services and the murky digital underworld.

hackerangreb - 500 mill. Yahoo konti

US charges Russian security officials over massive Yahoo hackTwo Russian security services officers and two alleged hackers have been charged over a Yahoo data breach that affected at least 500 million accounts

hackerangreb - 500 mill. Yahoo konti

U.S. Charges Russian Officials over Hacks for the First TimeThe Justice Department has issued arrest warrants for two Russian spies over a huge Yahoo breach.

hackerangreb - 500 mill. Yahoo konti

Russian Spies Helped Hack Yahoo, as if Tensions Weren’t High EnoughThe Department of Justice pinned a major Yahoo hack on Russia, adding to cyber-tensions between the two countries.

hjernens bevidsthed - hvor findes stederne for det i hjernen?

The Footprints of ConsciousnessThe bits and pieces of the brain that render us conscious reside in places few suspected --

hjernens ældning - en almindelig genetisk variant påvirker

How Fast Will Your Brain Age? Scientists Identify Key GeneScientists have found that a gene called TMEM106B controls how fast the brain ages and helps protect against dementia.

hjernens ældning - en almindelig genetisk variant påvirker

Brain-aging gene discoveredResearchers have discovered a common genetic variant that greatly affects normal brain aging in older adults. The discovery may point toward new targets for preventing or treating age-associated brain disorders such as Alzheimer's disease.

hjertestop øget risiko pga ibuprofen og NSAID-midler

NSAID-midler øger risikoen for hjertestopDet smertestillende middel diclofenac kan udløse hjertestop – det samme kan ibuprofen i høje doser, viser ny dansk forskning.

hjertestop øget risiko pga ibuprofen og NSAID-midler

Common Painkillers Linked to Greater Risk of Cardiac ArrestSome common pain relievers may increase the risk of cardiac arrest, according to a new study from Denmark.

humor og kvantteori

Toward a Quantum Theory of HumorThis paper proposes that cognitive humor can be modeled using the mathematical framework of quantum theory. We begin with brief overviews of both research on humor, and the generalized quantum framework. We show how the bisociation of incongruous frames or word meanings in jokes can be modeled as a linear superposition of a set of basis states, or possible interpretations, in a complex Hilbert spa

klimaændring gør organismer hvidere - reflekterer mere sollys

Changing temperatures and precipitation may affect living skin of drylandsArid and semiarid ecosystems are expected to experience significant changes in temperature and precipitation patterns, which may affect soil organisms in ways that cause surfaces to become lighter in color and thus reflect more sunlight, according to a new U.S. Geological Survey study.

klimaændring kan ødelægge afgrøder i Afrika

Climate change to worsen drought, diminish corn yields in AfricaNearly 25 percent of the world's malnourished population lives in sub-Saharan Africa, where more than 300 million people depend on corn, or maize, as their main food source. Maize is the most widely harvested agricultural product in Africa and is grown by small farmers who rely heavily on rainwater rather than irrigation. The crop is therefore extremely sensitive to drought, and since 2015 its pro

klimaændring medfører sygdomme

Climate change is making people sick: US doctorsFrom rising levels of air pollution to increased water contamination and a widening range for disease-carrying mosquitoes, climate change is making people sick, a coalition of 11 US medical groups said Wednesday.

kræft: melanoma - middel med nanopartikel med to lægemidler dræber melanoma

Nanoparticles loaded with 2 drugs might kill melanomaA new drug combo designed to kill melanoma cancer cells travels on nanoparticles, which are several hundred times smaller than the width of a hair. The drug, called CelePlum-777, combines a special ratio of the drugs Celecoxib, an anti-inflammatory, and Plumbagin, a toxin. With the drug, the cells have difficulty overcoming the effect of having more than one active ingredient. “This drug is the f

kræftceller dræbes af ultralyd

Russian scientists teach ultrasound find and kill cancer cellsA group of physicists and biologists from Russia under the supervision of Professor Viktor Timoshenko from the National Research Nuclear University MEPhI (Russia) has used silicone nanoparticles for highlighting and destroying cancer tumors with the help of the ultrasound, leaving healthy tissues unharmed. The study has been published in Nanotechnology.

kunstige kromosomer

De novo synthesis of five yeast chromosomes"What I cannot create, I do not understand."

luftforurening påvises med optisk fingeraftryk

Optical fingerprint can reveal pollutants in the airMore efficient sensors are needed to be able to detect environmental pollution. Researchers at Chalmers University of Technology have proposed a new, sophisticated method of detecting molecules with sensors based on ultra-thin nanomaterials. The novel method could improve environmental sensing in the future. The results are published today in the scientific journal Nature Communications.

lys styrer cellebiologi - ny metode

Biochemists develop new way to control cell biology with lightResearchers at the University of Alberta have developed a new method of controlling biology at the cellular level using light.

lys styrer cellebiologi - ny metode

Biochemists develop new way to control cell biology with lightResearchers have developed a new method of controlling biology at the cellular level using light. The tool -- called a photocleavable protein -- breaks into two pieces when exposed to light, allowing scientists to study and manipulate activity inside cells in new and different ways.

malariamiddel - ny metode

New method for producing leading anti-malarial drugResearchers have devised a new way of creating a drug commonly used as the first line of defense against malaria around the world.

mørkt stof - mindre virkning i det tidlige univers

Dark matter less influential in galaxies in early universeNew observations indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion years ago, were dominated by baryonic or 'normal' matter. This is in stark contrast to present-day galaxies, where the effects of mysterious dark matter seem to be much greater. This surprising result was obtained using ESO's Very Large Telescope and suggests that dark matter was les

mørkt stof - mindre virkning i det tidlige univers

Dark matter took its time to wrap around early galaxiesLarge spiral galaxies today rotate more quickly than they should, but was it always that way? New maps of ancient galaxies suggest a dark secret

mørkt stof - mindre virkning i det tidlige univers

Dark matter less influential in galaxies in early universeNew observations indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion years ago, were dominated by baryonic or 'normal' matter. This is in stark contrast to present-day galaxies, where the effects of mysterious dark matter seem to be much greater. This surprising result was obtained using ESO's Very Large Telescope and suggests that dark matter was les

nilotinib - middel kan måske virke mod Parkinson og Alzheimer

Cancer Drug That Might Slow Parkinson's, Alzheimer's Headed For Bigger TestsIn a preliminary study, the cancer drug nilotinib seemed to help patients with Parkinson's and dementia. Now two larger and more rigorous studies of the drug are under way.

nyresvigt pga dårlige mitokondrier

Elucidated connection between renal failure and 'bad' mitochondria describedScientists describe an elucidated connection between renal failure and 'bad' mitochondria in a new report.

planters identifikation ved hjælp af DNA-stregkoder

Better barcoding: New library of DNA sequences improves plant identificationThe ability to identify individual plant species from tiny amounts of material has a surprising range of uses, from monitoring bee populations to assessing the contents of food and nutritional supplements, as well as working out what a herbivore had for breakfast. Classifying fragments of plants can be tricky, so researchers at Emory University have developed a new database of genetic information

proteiners dans

When proteins court each other, the dance moves matterAt every moment inside the human body, a carefully choreographed dance is being performed.

robot - dansk forskning

DTU er klar til arabisk million-konkurrence om fremtidens robotDer er både 35 mio. kroner og æren på spil, når et hold danske ingeniører de næste to dage dyster i konkurrence om fremtidens robot i Abu Dhabi.

rundorm-hanner forgifter hinanden

Poison and mating regulate male roundworm populationsIn many species, mating comes at the steep price of an organism's life, an evolutionary process intended to regulate reproductive competition. But males of certain roundworm species have doubled down with two methods of checking out after mating, including one in which the males poison each other, according to new research.

selvkørende biler

The future car is driverless, shared and electricThe nation's top transportation experts see rapid change in transportation as a result of three major technology revolutions: shared, electric and automated vehicles. That's according to a survey by the Institute of Transportation Studies at UC Davis. The group also released a set of policy briefs, described below, which were guest-authored by leading transportation policy experts.

slanger dræber 150000 mennesker årligt

UA part of international alliance to address African antivenom crisisVenomous snakebites kill an estimated 150,000 people around the world each year—amid severe shortages of fair-priced antivenom and health providers trained to use the lifesaving treatment.

stress påvirker kvinder mere end mænd

Stress of major life events impacts women more than men, shows poll of 2,000 peopleNew research has highlighted the potential gender gap in stress, with women reporting higher stress from life events such as death of a loved one, illness, losing their smartphone and Brexit.

tarmanalyse med slugt minicamera

New alternative to colonoscopy is as easy as swallowing a pillThe patient ingests a capsule containing two miniature cameras on either end. As the capsule travels through the digestive tract, it captures images and wirelessly transmits them to a recorder the patient wears on a belt.

transplantation svin til menneske øget med CRISPR

CRISPR May Speed Pig-to-Human TransplantsStartup says it will edit pigs’ genes to prepare organs for harvest.

Trump - Pentagonchef uenig om klimaændring - betydning for sikkerhed

Pentagon chief says climate change threatens security: reportUnlike some in the Trump administration, Defense Secretary Jim Mattis believes climate change is real and that it poses a threat to international security, according to a US media report.

Trump og tilbageholden information

Experts predict tougher fight for U.S. government infoExperts predict that it will likely become more difficult for United States citizens to gain information about government affairs under the new presidential administration. For a new study, researchers surveyed and interviewed more than 300 journalists and freedom of information experts in December and January regarding their experiences and predictions in accessing public records. The John S. an

Trump og biler

More gas guzzlers due to Trump? Not necessarilyThe White House clashed with environmentalists over President Donald Trump's retreat from tough future auto emission standards, with both sides predicting potentially big consequences for America's car fleet.

Trump og biler

Q&A: Change to fuel economy standards could impact consumersPresident Donald Trump plans to re-examine federal fuel economy requirements for new cars and trucks.

Trump og brændstofeffektivitet

California Officials Pledge Not To Roll Back Fuel Efficiency StandardsCalifornia officials have said they will not back off the fuel efficiency standards established under Obama, despite the Trump administration's plan to revisit those standards.

Trump og klima - og industri - og Kina

Clean Energy Could Spark a Trade War Between the US and ChinaTrump wants to roll back climate-conscious government programs and make life easier for industry. China is doing the opposite. This may not end well.

Trump og miljø - biler

Trump puts brakes on vehicle emission targetsPresident Donald Trump moved to freeze future vehicle emission targets Wednesday, during a trip to the faded US automotive hub in Michigan.

Trump og science

Foreign graduate students and postdocs consider leaving the USOn March 6, President Donald Trump signed a second executive order to suspend immigration from six predominately Muslim countries, this time excluding Iraq from the list. According to an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, the move has prompted foreign graduate students and postdoctoral researchers currently in the U.S. to start

tørke - dyr der klarer sig i tørke

How some animals survive on almost no waterAnimals Six scintillating adaptations for life in the driest places on Earth These animals get by on almost no water at all, thanks to clever adaptations that make them super savers and hydration scavengers.

uddøen - Trias

Recovery after 'great dying' was slowed by more extinctionsResearchers studying marine fossil beds in Italy have found that the world's worst mass extinction was followed by two other extinction events, a conclusion that could explain why it took ecosystems around the globe millions of years to recover.

vulkans indre - med Google Street View

Dive into a Boiling Lava Lake with Google Street ViewYou can now climb inside an active volcano through Google Maps.

zeolit-nanoark - ultraselektive membraner til kemiske separationer

Researchers develop groundbreaking process for creating ultra-selective separation membranesA team of researchers, led by the University of Minnesota, has developed a groundbreaking one-step, crystal growth process for making ultra-thin layers of material with molecular-sized pores. Researchers demonstrated the use of the material, called zeolite nanosheets, by making ultra-selective membranes for chemical separations.

zeolit-nanoark - ultraselektive membraner til kemiske separationer

Groundbreaking process for creating ultra-selective separation membranesResearchers have developed a groundbreaking one-step, crystal growth process for making ultra-thin layers of material with molecular-sized pores. Researchers demonstrated the use of the material, called zeolite nanosheets, by making ultra-selective membranes for chemical separations.

øret: robot til at bore mini-tunneler i hjerneskallen

Robo First: Bot Assists with Tricky Cochlear-Implant SurgeryFor the first time, robots have successfully performed a tricky, delicate operation that helped implant a hearing device into a deaf woman's ear.

øret: robot til at bore mini-tunneler i hjerneskallen

This robot is perfectly designed to drill tiny tunnels in your skullTechnology The world's first robot-assisted cochlear implantation Cochlear implantation surgeries just got a robotic assistant.

øret: robot til at bore mini-tunneler i hjerneskallen

Researchers develop high-precision surgical robot for cochlear implantationA team of surgeons and engineers of Inselspital, Bern University Hospital, and the ARTORG Center for Biomedical Engineering Research, University of Bern (Switzerland), have developed a high-precision surgical robot for cochlear implantation. In the same way that avionics allow a pilot to fly a plane by instrument solely based on read-outs from the cockpit, the surgical robot developed by the resea

øret: robot til at bore mini-tunneler i hjerneskallen

'Instrument flight' to the inner earA high-precision surgical robot for cochlear implantation has been developed by a team of surgeons and engineers. To embed an electronic cochlear implant device into the ear of a deaf patient, the surgeon has to create a precise access from behind the ear, through the skull bone all the way into the inner ear.

øret: robot til at bore mini-tunneler i hjerneskallen

A Robot Ear Surgeon Drills Into the Future of MedicineWhile surgeons are in total control of current surgery robots, more machines are coming that will automate much of medicine.

astma forhindres i barndommen ved udsættelse for bakterier

Early-Life Microbes Ward Off AsthmaExposure to specific microbes when an infant is less than a year old seems to have a protective effect against the child's eventual acquisition of asthma. --

cellemodel for anorexi-spiseforstyrrelse (ved anvendelse af stamceller)

Model of anorexia nervosa created using stem cellsAn international research team has created the first cellular model of anorexia nervosa (AN), reprogramming induced pluripotent stem cells (iPSCs) derived from adolescent females with the eating disorder.

glyphosat er ikke carcinogent

Popular weedkiller doesn't cause cancer: EU agencyThe EU's chemicals agency said Wednesday that glyphosate, one of the world's most widely used weedkillers, should not be classed as a carcinogen.

heroin medfører epigenetisk gen-ekspressionspåvirkning (histon-acetylering)

Epigenetic alteration a promising new drug target for heroin use disorderThe past few years have seen an explosion of heroin abuse and deaths from opiate overdose. But little is known about the molecular underpinnings of heroin addiction. A new study has found that heroin use is associated with excessive histone acetylation, an epigenetic process that regulates gene expression. More years of drug use correlated with higher levels of hyperacetylation. The study provides

hudinfektion behandlet med bakterieholdig creme

Bacteria-Enriched Lotion Battles Skin InfectionsResearchers took bacteria from patients' skin, cultured them in a lab, and then put these bacteria into a lotion.

kriminalitet: scanning af hjernen kan vise om personen handler velvidende om en kriminalitet

Scientists predict crime knowledge states in the human brainScientists and lawyers speak different languages, but there is common ground. Scientists working in a multi-institutional team with legal authorities have discovered that brain imaging can determine whether someone is acting in a state of knowledge about a crime.

uranpåvisning med laser

Laser pulses in air detect uranium from afar A technique for detecting enriched uranium with lasers could help regulators sniff out illicit nuclear activity from as far as a couple of miles away. The technique, often used to identify chemicals at a distance, can also distinguish between ordinary uranium-238 and the fission-prone uranium-235. Just three fewer neutrons make a big difference in the element’s potential for destruction. “It’s a

vaccination-krav i Australien

Australia to ban unvaccinated children from preschoolThe government wants 95 per cent of Australian children vaccinated – a level that would stop infectious diseases spreading and protect those who can’t be vaccinated

vaccine-modstand

The Anti-Vaccine Narrative Just Gets DarkerAnti-vaccine conspiracy theories are dark by their very nature. A recent article shows how dark, cynical, and paranoid they can get.

videnskab-sites

Medie skyder med skarpt: Her er verdens bedste og værste videnskabs-sitesHvilke videnskabsmedier er det værd at ofre energi på? Og hvor spilder du din tid på journalistiske stramninger eller indforstået teknisk jargon? Det har et videnskabssite lavet en infografik over.

blærebetændelse - kronisk - sygdomsårsag

Scientists say they are a step closer to solving chronic bladder diseasesScientists have begun to unlock the genetic code to understand how the lining of the bladder functions as a barrier to store urine -- paving the way for possible new treatments for chronic bladder diseases such as interstitial cystitis and cancer.

bønners fordøjelseshæmmende proteiner

Protein doppelgangers are long-lost cousinsA 60-year-old mystery has been solved by biochemists at The University of Western Australia investigating the origin of a type of digestion-inhibiting proteins thought only to exist in two plant families that contain the important legume and cereal crops.

edderkopper spiser 880 tons insekter årligt

Spiders Eat Up to 880 Million Tons of Insects Each YearHug a spider. They eat up to 880 million tons of insects each year.

edderkoppers kost

Spiders top the global predator chartsThe world's spiders consume between 400 million and 800 million tonnes of primarily insect prey every year, say scientists.

hackerangreb

Passwords suck, but lip-reading computers won't save us Technology Although biometrics are slowly helping A researcher at Hong Kong Baptist University has proposed using lip movement to augment passwords.

hackerangreb

Security flaw found in WhatsApp, Telegram: researchersA computer security firm on Wednesday revealed a flaw that could let hackers break into WhatsApp or Telegram messaging accounts using the very encryption intended to protect messages.

hackerangreb

#Nazihollanda: Flere hundrede Twitter-accounts sender tyrkiske beskeder ud Flere brugere af tredjepartstjenesten Twitter Counters konti har det seneste døgn sendt tyrkiske beskeder under hashtagget #nazihollanda.

kræft: Brystkræft - strålebehandling kan formindskes

Reducing radiation could safely cut breast cancer treatment costsMore than half of older women with early stage breast cancer received more radiation therapy than what might be medically necessary, adding additional treatment and health care costs, according to a study.

kræftforskning i Danmark

Klinisk og eksperimentel forskning vil rykke sig med nationalt kræftcenter Det nye Danish Comprehensive Cancer Center vil komme til at få stor betydning for forskningen på området.

kunstig intelligens

Deepmind: AI's hukommelsesproblem kan være løst Deepmind mener at have fundet en algoritme, som medfører, at man med AI kan overføre erfaringer fra en opgave til en anden, fremfor at starte forfra hver gang.

kvantcomputere og DNA

What if Quantum Computers Used Hard Drives Made of DNA? You can't save data on a quantum computer. So a commercial one will need to use vintage tech—ultra dense hard drives, maybe made of DNA or single atoms.

malaria-middel

New method for producing leading anti-malarial drugResearchers at Cardiff University have devised a new way of creating a drug commonly used as the first line of defence against malaria around the world.

mikroplast fanges i spildevandsanlæg i Danmark

Mytedræber: Din karklud og din fleecetrøje frikendt for at forurene med mikroplastVandmiljøet lider ingen overlast, når du vasker dit kunststoftøj, selv om småbitte plastpartikler river sig løs. Renseanlæggene fjerner dem effektivt fra spildevandet, viser unik dansk forskning.

olieforurening - virkninger

Food web shows winners and losers 7 years after Deepwater A new food web highlights which birds, fish, insects, and other animals affected by the Deepwater Horizon explosion in 2010 should receive top priority for conservation, protection, and research. Until now scientists didn’t know which kinds of animals the spill affect most and what impact their collective fates had on the food chain after the offshore oil rig exploded and dumped 4.9 million barre

Parkinsons sygdom kan i tidligt stadie måske bekæmpes med folinsyre

Bowel cancer medication could help combat early-onset Parkinson's diseaseFolinic acid can protect neurons in fruit flies, report scientists. The study suggests that folinic acid, which is used in medications to treat bowel cancer, can also protect neurons associated with Parkinson's disease in fruit flies.

robotter

OutoBot, an innovative robot to wash and paint high-rise buildingsAn innovative robotic system that can clean building exteriors using water jets or give new coats of paint is now ready to serve customers in Singapore.

sandheder og løgne

The science 'reproducibility crisis' – and what can be done about itReproducibility is the idea that an experiment can be repeated by another scientist and they will get the same result. It is important to show that the claims of any experiment are true and for them to be useful for any further research.

sandheder og løgne - cherrypicking news

We’re great at avoiding inconvenient info New research illustrates how we tend to select our own realities by deliberately avoiding information that threatens our happiness and wellbeing. People on diets, for example, prefer not to look at the calories in their tasty dessert, and people choose the news source that aligns with their political views. In the Journal of Economic Literature , researchers show that while a simple failure to ob

selvkørende biler

Machine Learning and Data Are Fueling a New Kind of CarHere’s why Intel just offered $15.3 billion for Mobileye, an Israeli company that specializes in machine vision and learning for cars.

solenergi kan omdannes til hydrogen

Hydrogen on demandUsing solar energy, researchers have developed a new method for safely and efficiently producing hydrogen in a centralized manner, miles away from the solar farm. It could greatly reduce the cost of producing hydrogen and shipping it to customers.

stamcellers differentiering

Researchers decipher how the body controls stem cellsStem cells are unspecialized cells that can develop into any type of cell in the human body. So far, however, scientists only partially understand how the body controls the fate of these all-rounders, and what factors decide whether a stem cell will differentiate, for example, into a blood, liver or nerve cell. Researchers have now identified an ingenious mechanism by which the body orchestrates t

statin giver diabetesrisiko i ældre kvinder

Older women taking statins face higher risk of diabetesWomen over 75 faced a 33 percent higher chance of developing diabetes if they were taking statins, new Australian research shows. The risk increased to 51 percent for those on high doses. Clinicians are urged to be aware of the risks when prescribing and carefully monitor elderly female patients.

Trump og miljø

10 Ways the EPA Has Protected Earth and YouHere are 10 landmark acts and programs the EPA has implemented over the years to help make the country more energy efficient and more environmentally safe.

Trump og miljø

Life Without the EPA: Superfund Apartments and Acid RainImagining the U.S. without federal environmental oversight from the EPA.

Trump og miljø

Trump to undo Obama auto emissions rules: officialPresident Donald Trump is set to announce steps Wednesday to halt his predecessor Barack Obama's future vehicle emissions limits for manufacturers, a senior administration official said.

Trump og vælgerne

Don't Demonize Trump VotersIf we shun those who disagree with us instead of sincerely engaging with them, we risk distorting our worldview --

CRISPR

CRISPR, microbes and more are joining the war against crop killers Agricultural scientists look beyond synthetic chemistry to battle pesticide resistance.

edderkopper - hvor meget spiser de

Spiders eat twice as much animal prey as humans do in a yearThey may be tiny but spiders chomp through an estimated 800 million tonnes of mainly insect prey a year, compared with our 400 million tonnes of meat and fish

edderkopper - hvor meget spiser de?

Spiders eat 400-800 million tons of prey every yearIt has long been suspected that spiders are one of the most important groups of predators of insects. Zoologists at the University of Basel and Lund University in Sweden have now shown just how true this is - spiders kill astronomical numbers of insects on a global scale

fødselsdepression og anti-angst hormon allopregnanolon

Low levels of 'anti-anxiety' hormone linked to postpartum depressionIn a small-scale study of women with previously diagnosed mood disorders, researchers report that lower levels of the hormone allopregnanolone in the second trimester of pregnancy were associated with an increased chance of developing postpartum depression in women already known to be at risk for the disorder.

hukommelse: korttidshukommelse øges med elektricitet der synkroniserer hjernebølger

Buzzing the brain with electricity can boost working memoryScientists have uncovered a method for improving short-term working memory, by stimulating the brain with electricity to synchronize brain waves.

methanproducerede fluelarve har drivhuseffekt

Fly larvae found to contribute to atmospheric methane pollutionChaoborus spp is a small fly species that is found all over the world (except in Antarctica). The insect spends one to two years of its life cycle under water in a larval state, in lakes no deeper than 70 metres. Larvae spend the day in lakebed sediment and rise to the surface at night to feed. They are equipped with air sacs that they can adjust to alter their depth in the water so as to migrate

monoklonalt antistof giver længere overlevelse

Nyt antistof giver længere overlevelse end kemoterapiLeukæmipatienter overlever signifikant længere, hvis de får behandling med et monoklonalt antistof.

mykorrhiza studeres med infrarødt lys af særlige bølgelængder

Researcher uses infrared light to explore how fungal associations help plants thriveTiny strands of fungi weave through the roots of an estimated nine out of 10 plants on Earth, an underground symbiosis in which the plant gives the fungus pre-made sugars and the fungus sends the plant basic nutrients in return. Scientists are interested in enhancing this mechanism as a way to help plants grow on nutrient-poor lands. Their success could lead to increased production of plant-based

slangegift - klapperslangens gift - oprindelse

How cobras developed flesh-eating venomA University of Queensland-led international study has revealed how one of the world's most feared types of snakes – cobras – developed their potent venom.

sollys omdanner CO2 til energi i kunstigt system

Molecular ‘leaf’ uses sun to turn CO2 into fuel Chemists have engineered a molecule that uses light or electricity to convert carbon dioxide into carbon monoxide—a carbon-neutral fuel source—more efficiently than any other method of “carbon reduction.” “If you can create an efficient enough molecule for this reaction, it will produce energy that is free and storable in the form of fuels,” says study leader Liang-shi Li, associate professor in

Alzheimer - og bakterier

Keeping the Future in Mind: Alzheimer's Treatments and Bacteria That Can Cure --

Alzheimer - og kost, motion og socialt liv

A Rare Success against Alzheimer'sA gold-standard clinical trial provides evidence that diet, exercise and an active social life can help prevent cognitive decline --

autisme og schizofreni og bipolær lidelse kan måske kobles til variation i non-kodende DNA

Defect in non-coding DNA might trigger brain disorders such as severe language impairmentGenetic variation in the non-coding DNA could give rise to language impairments in children and other neurodevelopmental disorders including schizophrenia, autism, and bipolar disorder, scientists have found.

autoritær psykologi: Stanley Milgram experimentet virker på samme måde i dag

Conducting the Milgram experiment in Poland, psychologists show people still obeyA replication of one of the most widely known obedience studies, the Stanley Milgram experiment, shows that even today, people are still willing to harm others in pursuit of obeying authority.

barneægteskaber i verden

Study finds child marriage remains widespread in many countries of sub-Saharan AfricaChild marriage harms girls' health and development throughout the world. Although child marriage has become less common in sub-Saharan Africa, more than one third of girls continue to marry before reaching their 18th birthday in over half of the 31 countries examined in a new study from McGill University published in Population and Development Review.

bildæk med æggeskaller og tomathinder

Researchers are using tomato peels and eggshells to make tires From Our Blogs: Nexus Media News Meals into wheels Researchers have discovered that food waste, specifically tomato peels and eggshells, makes excellent filler for rubber tires.

CO2 målinger

Atmospheric Carbon Dioxide Hits Record LevelsIt marks five consecutive years of CO2 increases of at least 2 parts per million, an unprecedented rate of growth --

elektrode der er bøjelig

Stretchy electrode is like ‘second skin’ for your brain The brain is soft and electronics are stiff, which can make combining the two challenging, such as when neuroscientists implant electrodes to measure brain activity and perhaps deliver tiny jolts of electricity for pain relief or other purposes. “One thing about the human brain that a lot of people don’t know is that it changes volume throughout the day.” Chemical engineer Zhenan Bao is trying to

energilagring med polymer

Research team pioneers two-dimensional polymer breakthrough that could revolutionise energy storagePolymers, such as plastic and synthetic textiles, are very useful technological commodities that have revolutionised daily life and industries. A research team from the National University of Singapore (NUS) has successfully pushed the frontier of polymer technology further by creating novel two-dimensional (2D) graphene-like polymer sheets.

evolution - heste

Evolution Runs Faster on Short Timescales In the 1950s, the Finnish biologist Björn Kurtén noticed something unusual in the fossilized horses he was studying. When he compared the shapes of the bones of species separated by only a few generations, he could detect lots of small but significant changes. Horse species separated by millions of years, however, showed far fewer differences in their morphology . Subsequent studies over the next

evolution af planter og bier

Flies and bees act like plant cultivatorsPollinator insects accelerate plant evolution, but a plant changes in different ways depending on the pollinator. After only nine generations, the same plant is larger and more fragrant if pollinated by bumblebees rather than flies, as a study conducted by evolutionary biologists from the University of Zurich reveals.

evolution: planter startede før hidtil antaget

'Oldest plants on Earth' discoveredThe origins of plants may go back hundreds of millions of years earlier than previously thought, according to fossil evidence.

evolution: planter ældre end hidtil antaget - 1,6 mia år

1.6 Billion-Year-Old Specimens May Be Oldest Plant-Like FossilsScientists have discovered what may be the world’s oldest plant-like fossils, estimated to be 1.6 billion years old.

evolution: planter ældre end hidtil antaget - 1,6 mia år

Fossil algae hold clues to origin of modern photosynthesis The 1.6-billion-year-old specimens hold promise for settling long-running debate

evolution: planter ældre end hidtil antaget - 1,6 mia år

Introducing the world's oldest plant-like fossil Science 1.6 billion years of fauna When you think fossils, you probably think of dinosaur remains. But how about something a little greener?

evolution: planter ældre end hidtil antaget - 1,6 mia år

World's oldest plant-like fossils discoveredScientists at the Swedish Museum of Natural History have found fossils of 1.6 billion-year-old probable red algae. The spectacular finds, publishing on 14 March in the open access journal PLOS Biology, indicate that advanced multicellular life evolved much earlier than previously thought.

evolution: planter ældre end hidtil antaget - 1,6 mia år

Oldest plant-like fossils discovered are 1.6 billion years oldThe discovery suggests that plants and complex life on Earth are at least 400 million years older than previously thought

evolution: planter ældre end hidtil antaget - 1,6 mia år

World's oldest plant-like fossils show multicellular life appeared earlier than thoughtScientists have found fossils of 1.6 billion-year-old probable red algae. The spectacular finds indicate that advanced multicellular life evolved much earlier than previously thought.

fisk: hajers evolutionsudspring

New study identifies ancient shark ancestorsNew research based on x-ray imaging provides the strongest evidence to date that sharks arose from a group of bony fishes called acanthodians. Analyzing an extraordinarily well-preserved fossil of an ancient sharklike fish, researchers identified it as an important transitional species that points to sharks as ancanthodians' living descendants. The work is published in the journal American Museum

forhistorisk 400.000 år gammelt menneske

Is This 400,000-Year-Old Hominin the Great Grandpa of Neanderthals?A newfound, 400,000-year-old hominin skull has a few telltale features suggesting that it's more of a Neanderthal than a Homo sapiens relation, a new study finds.

forhistorisk menneske 400.000 år fundet i Portugal

400,000-year-old fossil human cranium is oldest ever found in PortugalResearchers have found the oldest fossil human cranium in Portugal, marking an important contribution to knowledge of human evolution during the middle Pleistocene in Europe and to the origin of the Neanderthals.

hackerangreb

Scientists can hack sensors in cars and phones with a $5 speaker Critical sensors in lots of cars, phones, and medical devices could be vulnerable to hacks from sound waves. The sensors involved in the research are known as capacitive MEMS accelerometers. They measure the rate of change in an object’s speed in three dimensions. It turns out they can be tricked. Researchers used precisely tuned acoustic tones to deceive 15 different models of accelerometers int

hackerangreb

Strengthening cybersecurity through researchMobile computing has become a fundamental feature in modern day life as people develop an unprecedented reliance on smart phones and tablets. However, along with their ubiquity comes a host of risks that can affect personal privacy, sensitive corporate information and even national security.

hackerangreb

Researcher invents lip motion password technologyThe use of biometric data such as fingerprints to unlock mobile devices and verify identity at immigration and customs counters are used around the world. Despite its wide application, once the scan is stolen or hacked, the owner can't change his/her fingerprints and has to look for another identity security system. With this in mind, a scholar at HKBU has invented a new technology for lip motion

hukommelsen - kræver overraskelse og opmærksomhed

Du husker bedst det, der overrasker digNår oplysninger skal fra korttidshukommelsen til langtidshukommelsen, kræver det både opmærksomhed og gentagelser.

hundesygdommen ARDS acute respiratory distress syndrome - nyt gen påvist

Breathtaking gene discovery in Dalmatian dogsUniversity of Helsinki researchers have uncovered a novel gene associated with acute respiratory distress syndrome (ARDS) in dogs. The new research on this fatal disease may also help us understand the mechanisms of respiratory diseases in humans.

kræft: brystkræft og gener

One in five breast cancer patients could benefit from existing treatment, genetic study revealsResearchers have discovered that a greater number of breast cancers are genetically similar to rarer cases with faulty BRCA1 or BRCA2 genes. The results open up the possibility of up to 20 percent of women being treated with PARP inhibitors, a class of drug previously only thought to be effective for women with an inherited BRCA1 or BRCA2 mutation.

malariaparasittens vækst og frigørelse fra blodlegemet

New studies show how malaria parasite grows and escapes from red blood cellsTwo new studies from the Francis Crick Institute shed light on how the malaria parasite grows inside a host's red blood cells and breaks out when it's ready to spread to new host cells.

næsehorn-horn fra Kenya taget i tolden i Vietnam

Vietnam seizes 100 kgs of rhino horn from KenyaVietnam police seized more than 100 kilograms of rhino horn smuggled into the country in suitcases from Kenya on Tuesday, the latest illegal haul in the wildlife trafficking hub.

omega-3 efter hjerteproblemer

Fish oil supplements may help prevent death after MI but lack evidence of CV benefit for general populationOmega-3 fish oil supplements prescribed by a healthcare provider may be reasonable for patients who have had a heart attack. Patients with heart failure may also benefit from supplementation with omega-3 fish oil. However, there is a lack of evidence that omega-3 fish oil supplements prevent cardiovascular diseases in the general population.

rødhåret - årsag og historie

Video: The chemistry of redheadsSt. Patrick's Day evokes thoughts of all things often associated with the Irish—including red hair. Chemically speaking, what sets redheads apart from the crowd is pigmentation—specifically melanins.

Saharas ørken - menneskets skyld?

Did humans create the Sahara Desert?New research investigating the transition of the Sahara from a lush, green landscape 10,000 years ago to the arid conditions found today, suggests that humans may have played an active role in its desertification.

sandheder og løgne

German official wants $53M fines for social media hate postsGermany's justice minister is proposing fines of up to 50 million euros ($53 million) for social networking sites that fail to swiftly remove illegal content, such as hate speech or defamatory "fake news."

schizofreni - har lavere niveauer af GABA samt ændringer i immunsystem

Major research project provides new clues to schizophreniaResearchers are taking an integrative approach to unravel the disease mechanisms of schizophrenia. In the very first results, the researchers show that patients with schizophrenia have lower levels of the vital neurotransmitter GABA as well as changes in the brain's immune cells.

selvkørende biler

ANALYSE: Derfor køber Intel Mobileye for 105 milliarder kronerDe store tech-kæmper er ved at konsolidere sig omkring den teknologi, der skal bruges i selvkørende biler. Med Intels overtagelse af israelske Mobileye for den nette sum af 105 mia. danske kroner, er kampen gået ind i en nye fase.

stamceller dyrkes med ny metode

New platform for culturing stem cellsA team of researchers in Japan has developed a new platform for culturing human pluripotent stem cells that provides far more control of culture conditions than previous tools by using micro and nanotechnologies.

stamceller i tarm kan forynges

Old gut stem cells made to grow like young ones in a dishIntestines experience a lot of wear and tear. Without the stalwart stem cells that live in our gut's lining, our ability to absorb food would dwindle and bacteria from the digestive tract would be able to breach the bloodstream. Unfortunately, the regenerative abilities of intestinal stem cells decline with age. However, it may be possible to partially reverse aging in gut stem cells, at least in

statiner og kirurgi

High cholesterol levels linked with rotator cuff surgery failurePatients with higher cholesterol levels face a significantly greater risk for failure of minimally invasive (arthroscopic) rotator cuff surgery, according to a new study. According to the study, commonly-used cholesterol lowering drugs, called statins, diminish this risk.

tarmbakterier mod infektion

Study paves the way for Clostridium difficile treatment in pill formFrozen and freeze-dried products for Fecal Microbiota Transplantation (FMT) are nearly as effective as fresh product at treating patients with Clostridium difficile (C-diff) infection, according to researchers.

Trump og klima

Scott Pruitt’s climate denial may be Putin’s real prizeDid Russia back the rise of Donald Trump to see climate sceptics in power in the hope of saving its economic skin, wonders Owen Gaffney

Trump og klima

Democrats and Republicans draw different conclusions when seasons are too hot or too coldWhen the weather is unseasonably hot or cold, Americans across the political spectrum have even stronger views about whether climate change caused by human activity is a reality or not. Republicans are then less likely to conform to the scientific consensus on global warming, while Democrats are much more likely to do so.

zikavirus - immunsystem beskytter

Immune molecule protects against Zika virus infection in animal modelsA molecule naturally produced by the immune system protects mice and monkeys against Zika virus infection, an international team of researchers has found. Administering the molecule, called 25-hydroxycholesterol or 25HC, to pregnant mice reduced Zika virus infection in the fetal brain and protected against Zika-induced microcephaly.

astma - corticosteroider virker paradoksalt modsat hos patienter med alvorlig astma

Breath of fresh air for severe asthma researchNew research points to immunological differences in responses to steroids in patients with severe asthma, suggesting why corticosteroids may paradoxically perpetuate inflammation in severe asthma.

astma og støvmider - betræk i seng fordelagtogt

Mite-proof bedcovers may reduce asthma flare-ups in childrenBedcovers that form a barrier to house dust mites appear to reduce asthma flare-ups in children, according to new research.

bakteriofager kan dræbe resistente bakterier

Phage therapy shown to kill drug-resistant superbugScientists from the University of Liverpool's Institute of Infection and Global Health have shown that phage therapy could offer a safe and effective alternative to antibitotics in the treatment of cystic fibrosis lung infections.

biosensorer der kan bæres på armen - og anbefale lægebesøg

Wearable biosensors can tell you when to see the doctorYour watch might be able to tell you it’s time to call in sick. Researchers have revealed the ability of wearable biosensors, similar to the Apple Watch or Fitbit, to detect physiological changes that may indicate illness, even before symptoms appear.

evolution og kunstige gærkromosomer

Synthetic yeast chromosomes help probe mysteries of evolution To work out how the yeast genome evolved, bioengineers are recreating it.

HIV: påvisning med MRI scanning i hjernen

MRI scans can help spot HIV in the brainScientists have developed a way to use MRI scans to help identify when HIV is persisting in the brain despite effective drug treatment. The study shows that patients can have HIV in the brain even when the disease is kept under control by treatment.

hjerneaktivitet koblet til visse fænomer i magnetiske systemer

Association between magnetic systems and certain states of brain activityScientists from the University of Granada (UGR) have proven for the first time that there is a close relationship between several emerging phenomena in magnetic systems (greatly studied by condensed matter physicists) and certain states of brain activity.

hoppende gener - ny hidtil ukendte mekanisme

Novel mechanism that detains mobile genes in plant genomeA team of Hokkaido University researchers has discovered a hitherto-unknown mechanism that detains transposable elements or "mobile genes" - which can move and insert into new positions in plant genomes.

KOL-patienter døde efter intensiv gangtræning - projekt i København (5 ud af 15 patienter døde)

5 ud af 15 patienter med svær KOL døde efter lille forsøg med intensiv gangtræning KOL-patienter skal ikke presses for hårdt på deres fysiske formåen, viser rehabiliteringsprojekt fra København.

ranavirus dræber padder, fisk og krybdyr i Portugal

A virus lethal to amphibians is spreading across PortugalA new strain of ranavirus is currently causing mass mortality in several species of amphibian in the Serra da Estrela, the highest mountain range in continental Portugal. This infectious agent is hypervirulent and also affects fish and reptiles, which complicates the situation, according to a study boasting the collaboration of the National Museum of Natural Sciences in Madrid.

Roundup og kritiseret rotteforsøg

Forskere genåbner kritiseret rottestudieDa en rapport om effekterne af Roundup på rotter blev trukket tilbage fra et videnskabeligt tidsskrift i 2013, regnede de fleste med, at rotterne var lagt i graven. Men de var kun i fryseren, og nu er de fremme igen.

Roundup og kritiseret rotteforsøg

Sådan fik forskere nyt studie ud af gamle rotterIkke bare genbrug af rotter, men også en omdiskuteret forsøgsmetode ligger bag nyt Roundup-studie.

smertestillende elektrode der er gummiagtig med elektrisk førende søges udviklet

Engineers develop a plastic electrode that stretches like rubber but carries electricity like wiresThe brain is soft and electronics are stiff, which can make combining the two challenging, such as when neuroscientists implant electrodes to measure brain activity and perhaps deliver tiny jolts of electricity for pain relief or other purposes.

smitsom gabning og kløning - hvad ser i musehjernen når den ser en mus klø sig

How this itchy photo can make you scratch Some actions, like yawning and scratching, can spread from one person to another. New research finds that socially contagious itching is hardwired in the brain. Studying mice, the scientists have identified what occurs in the brain when a mouse feels itchy after seeing another mouse scratch. The discovery may help scientists understand the neural circuits that control socially contagious behavior

temperaturændring-påvirkelig papirfarve

New patterns emerge in fabric when the temperature changesImagine a single-coloured piece of cloth that suddenly displays a colourful pattern when the ambient temperature changes. Upon further temperature change, a completely different pattern shows up.

ahornsirup ændrer sig med klimaændringer

Effects of weather variability on maple syrup production studiedSome farmers in the United States and Canada have noticed that the quantity and quality of their maple syrup is changing with climate variability. Now researchers who are investigating these observations.

arbejdsløshed - virkninger på familiens børn

Children from jobless households more likely to experience disadvantage in adulthoodChildren from disadvantaged families in the UK are more likely to have lower education, be out of work and experience poverty in adult life than their peers in other European countries, apart from Ireland and Belgium, according to new research from the UCL Institute of Education (IOE).

brystkræft og tumor-sekvensbestemmelse

New critical information on tumor sequencing, response to chemotherapyTumor sequencing is increasingly used to select treatment for patients with cancer, but its role in women with newly diagnosed breast cancer is unknown. Researchers now report the results of a prospective tumor sequencing study in women receiving chemotherapy prior to breast surgery.

celler sorteres

Simulating cellular sorting processesA plant or an animal cell uses numerous processes to sort and assemble tiny building blocks into larger molecules, to rebuild molecules or to dissolve them. Such processes depend on interactions between various cellular components and are pre-programmed at least in some of the building blocks. Using synthetic gel particles, scientists try to simulate these cellular procedures; however, mimicking t

cellers sorteringsprocesser studeres ved brug af syntetiske gelpartikler der efterligner celler

Simulating cellular sorting processesA plant or an animal cell uses numerous processes to sort and assemble tiny building blocks into larger molecules, to rebuild molecules or to dissolve them. Such processes depend on interactions between various cellular components and are pre-programmed at least in some of the building blocks. Using synthetic gel particles, scientists try to simulate these cellular procedures; however, mimicking t

CO2-niveauet

Carbon dioxide levels rose at record pace for 2nd straight yearCarbon dioxide levels measured at NOAA's Mauna Loa Baseline Atmospheric Observatory rose by three parts per million to 405.1 parts per million (ppm) in 2016, an increase that matched the record jump observed in 2015.

endostatin - og prostatakræft

Castration-resistant prostate cancer cell growth impeded by endostatinEndostatin, a naturally occurring protein in humans, can significantly decrease proliferation of castration-resistant prostate cells in culture, and researchers describe the physiological pathways and signaling evoked by endostatin.

evolution 635-541 mill. år siden

Microbes set the stage for first animalsIt is thought that animal life first arose during the Ediacaran Period, between 635 and 541 million years ago, but these organisms bore little resemblance to the animals we know today. That's led some scientists to believe that they may not have been animals at all, and instead amounted to failed experiments in multi-cellular evolution.

fedtsyrer høstning fra gærceller

How to brew high-value fatty acids with brewer's yeastShort-chain fatty acids are high-value constituents of cosmetics, active pharmaceutical ingredients, antimicrobial substances, aromas or soap. To date, it has only been possible to extract them from crude oil by chemical means or from certain plants, such as coconut, using a complex process.

fortidsmennesker - fund i Kina

New skulls from China have scientists and the media in a muddleJust a decade ago we thought we had solved the mystery of mysteries. We were confident we had finally puzzled out the evolutionary origins of modern humans.

graviditet: inflammation årsag til for tidlig fødsel

Study describes potential clinical test and treatment for preterm birthScientists identified a molecular driver of inflammation that may finally answer a key question about what causes mild systemic prenatal infections to trigger preterm birth. The finding is an important step to developing a treatment or clinical test for early detection of an entrenched global health problem, according to researchers.

hackerangreb

Hacker Lexicon: What Is an Attack Surface? Whenever there's a hack, one of the first questions is how the attackers got in. For the answer, look to the attack surface.

hormonbehandling sikkerhed

The evidence base for Hormone Replacement Therapy (HRT): what can we believe?The 'facts' that most women and clinicians consider in making the decision to use, or not use, HRT are frequently wrong or incorrectly applied according to a professor. New research raises serious questions about the 'facts' that have led women and their doctors to believe hormone therapy (often called HRT) is unsafe.

hukommelsen: opmærksomhed og arbejdshukommelse hos 13-24 årige

Media multitasking linked to distractibility among youthResearchers have studied the patterns of activity in cortical networks related to attention and working memory, as well as investigating associations between performance in working memory and attention tasks and the extent of daily technology-mediated activities in 13–24-year-old subjects.

mobning har senvirkninger

Childhood bullying may lead to increased chronic disease risk in adulthoodBeing bullied during childhood might have lifelong health effects related to chronic stress exposure -- including an increased risk for heart disease and diabetes in adulthood, according to a research review.

nanomængder af lægemidler - dansk forskning

Using molecules to detune nanodrumsThe analysis of the minutest quantities of pharmaceutical samples is of crucial importance for the research and synthesis of new medications. At the moment it represents a technical challenge, but a new infrared method of measurement developed by TU Wien in collaboration with two research groups from Copenhagen may remedy this.

neanderthal kost og kys

Neanderthal Dental Plaque Reveals a Lot About Their Diet, Medical Practices, and Love Life They may have even kissed our ancestors.

pseudovidenskab

Corrigendum. The week in review for 03/12/2017Waiting for a vaccine-preventable infection. More lousy acupuncture studies. Medical students interested in homeopathy are not as strong at science. Water wet. TCPM consuming donkeys. What the FDA does, and doesn't do, for now.

pseudovidenskab - risiko

“Chemotherapy is for losers”: A tragic tale of cancer, naturopathic quackery, and murderWhen a patient and her family trust a naturopath rather than oncologists and oncologic surgeons, the result is often tragic. In this case, Fikreta Ibrisevic trusted naturopath Juan Sanchez Gonzalez instead of real doctors to treat her rhabdomyosarcoma in 2015. The results were as tragic as expected, and she died. What happened next was not expected and amplified the horror of the outcome, as, in h

RNA mod majsinficerende svamp der udvikler aflatoxin

This small molecule could have a big future in global food securityResearchers have used RNA molecules to prevent a corn-infecting fungus from producing a potent toxin. The approach could save millions of tons of crops each year from contamination with aflatoxin, a major threat to health and food security especially in developing parts of the world, they say.

robotter

A future with robots as companions could be closer than you thinkThe 2012 movie Robot & Frank described a "near future" that would allow us to spend our golden years living "co-dependently independently," fulfilled by ever-present robot companions that could watch out for loss of balance and falls, prompt us to do constructive home projects like gardening and even become something like our best friends.

sandheder og løgne

Could an auto logic checker be the solution to the fake news problem?Fake news is not news – that is, it is not in fact news, and the matter of fake news is not a recent revelation. But while fake news is a thorny problem that needs addressing in its own right, it is part of an even bigger issue too. Discourse –- the process by which humanity collectively comes to an understanding of itself, and so shapes its own future –- is fundamentally broken.

sandheder og løgne

Web creator Tim Berners-Lee speaks out on fake newsOn the 28th anniversary of the world wide web, its creator highlights fake news, political advertising and personal data collection as main challenges

sandheder og løgne

This Article Won’t Change Your Mind: The facts on why facts alone can’t fight false beliefs

sandheder og løgne

Listen to ‘Tech Support’ Scam Calls That Bilk Victims Out of Millions To get to the bottom of a devious form of phone-based fraud, a group of researchers scammed the scammers.

selvkørende biler

Førerløse biler ændrer vores prioritering af vejprojekterPolitikere risikerer at investere i forkerte vejprojekter, hvis de ikke medtager teknologiudviklingen. Det viser en analyse af tre vejprojekter herhjemme.

selvkørende biler

To Make Us All Safer, Robocars Will Sometimes Have to KillNot only will robocars fail to completely end traffic deaths, but they'll be choosing who to sacrifice—all to make the roads of tomorrow a safer place.

tarmvæv i 3D-model udvikling - virkning på Salmonella

3-D tissue culture models to mimic human gut infectionsScientists have reported their latest advancement in 3-D intestinal model development. Their united goal is to develop more realistic models of intestinal tissue to thwart Salmonella, a leading cause of food poisoning and systemic disease worldwide with many varieties causing severe and sometimes fatal infections with an economic impact in the billions of dollars.

telemedicin gav øgede udgifter

Ny forskning: Telemedicin gav ekstra udgifterBlandt 300.000 patienter i USA resulterede muligheden for kontakt med sundhedsprofessionelle over mobiltelefon eller video øgede udgifter totalt set.

Trump og klima

Trump and Republicans take aim at environmental agency EPA chief Scott Pruitt denies carbon dioxide’s impact on the climate, and promises deregulation.

Trump og klima

Trump’s assault on climate science will not make America greatGutting the US National Oceanic and Atmospheric Administration and the Environmental Protection Agency will leave the US more vulnerable to climate change

vacciners lagringsstabilitet i troperne

Researchers develop testing program to study potency for neglected tropical disease vaccinesResearchers have developed a way to test recombinant vaccines for their ability to stay effective after years of storage.

hjerne hos "unge" ældre

"Super Agers" Have Brains That Look Young
Older adults who perform like young people on tests of memory have a shrink-resistant cortex --

ny blodtest forudsiger hjertekarproblemer - ny test

New blood test may predict cardiovascular events in patients with or without coronary artery disease
A new type of blood test may help physicians identify which patients with and without evidence of coronary blockages are at risk for heart attacks and strokes. Even individuals with normal levels of low-density lipoprotein (LDL), known as the so-called “bad” cholesterol, but still at risk, seem to be identified.

parasitters kommunikation ødelægges af forskere - forhindrer sygdomsspredning

Scientists effectively disrupt communication between parasites that spread disease
A new intervention to tamper with parasites' communication system may lead to the development of drugs to treat, and prevent the spread of, devastating diseases such as African sleeping sickness, leishmaniasis and Chagas' disease.

Roundup-rotteforsøg - kritiseret forsøg genåbnet

Forskere genåbner kritiseret rottestudie
Da en rapport om effekterne af Roundup på rotter blev trukket tilbage fra et videnskabeligt tidsskrift i 2013, regnede de fleste med, at rotterne var lagt i graven. Men de var kun i fryseren, og nu er de fremme igen.

Roundup-rotteforsøg - kritiseret forsøg genåbnet

Sådan fik forskere nyt studie ud af gamle rotter
Ikke bare genbrug af rotter, men også en omdiskuteret forsøgsmetode ligger bag nyt Roundup-studie.

3D-printet bygning i Danmark

Første 3D-printede bygning i Danmark på vej
For første gang skal en bygning i Danmark bygges med 3D-printet beton. Arkitekten bag er dog stadig ikke overbevist om teknologien.

immun-huskecellers mulige problem (TRM T-celler)

Possible Achilles' heel in key immune memory cells
Genes involved in lipid metabolism are highly active in TRM cells, roughly 20- to 30-fold more active than in other types of T-cells.

innovation og hvad der stimulerer den

What is innovation, and how can we awaken its dormant traits and cultivate them?
While education may not be able to create innovative traits in individuals, education may improve the ability of individuals to utilize the traits they already possess. To that end, the authors begin by defining innovation and identifying the characteristics, traits, and thought processes of innovative individuals or groups of individuals and the environments that they exist in. The ultimate goal

sandheder og løgne

Web creator Tim Berners-Lee speaks out on fake news
On the 28th anniversary of the world wide web, its creator highlights fake news, political advertising and personal data collection as main challenges

aflatoxin-svampegift fjernes fra fødevare med lille RNA-molekyle i majs der er gensplejset

This small molecule could have a big future in global food securityResearchers at the University of Arizona have found a promising way to prevent the loss of millions of tons of crops to a fungus each year, offering the potential to dramatically improve food security, especially in developing countries. The team's approach uses transgenic corn plants that produce small RNA molecules that prevent fungi from producing aflatoxin, highly toxic substances that can ren

aflatoxin-svampegift fjernes fra fødevare med lille RNA-molekyle i majs der er gensplejset

Maize engineered to silence deadly toxins in poisonous mouldMost people on the planet are exposed to aflatoxins from fungi that infect staple crops, but now a GM approach could help change that

demens: raske nerveceller modtager besked fra syge nerveceller som får dem til at begå selvmord

Researchers discover how neurons tell each other to die under trauma, diseaseNeuroscientists have found that healthy neurons receive messages from injured neighbors that can lead to death. If they can block these messages from getting through, they may be able to slow the progress of neurodegenerative diseases.

hjernen bruger dopamin til at vælge beslutninger

Hard choices? Ask your brain's dopamineResearchers have learned how dopamine governs ongoing decisions, yielding insights into Parkinson's, drug addiction.

hjernen bruger dopamin til at vælge beslutninger

Dopamine neurons factor ambiguity into predictions enabling us to 'win big and win often'In the struggle of life, evolution rewards animals that master their circumstances, especially when the environment changes. The recipe for success is: win big, and win often. Success depends on the ability to learn. Researchers describe how dopamine-releasing neurons, which produce teaching signals for the brain, weigh the ambiguity of sensory information when they assess how successfully past ex

hjerne-organoider - organisering af forhjernens udvikling

A closer look at brain organoid developmentResearchers already have succeeded in growing so-called 'cerebral organoids' in a dish -- clusters of cells that self-organize into small brain-like structures. Scientists have now further characterized these organoids. They demonstrate that, like in the human brain, so-called forebrain organizing centers orchestrate developmental processes in the organoid, and that organoids recapitulate the timi

antibiotika-kombination mod resistens

Novel antibiotic combination therapy overcomes deadly drug-resistant bacteriaResearchers have taken a significant step toward defeating antibiotic-resistant infections by combining two different antibiotics that each block a different kind of drug-destroying enzyme secreted by bacteria.

bakterier bruges til at lave duftstoffer

What are the "natural flavors" in your food? Biotech is making the answer more complicated. Science Scientists are turning to microbes to manufacture scents and flavors Many companies are using microbes and molecules made by living organisms to forge natural scents and flavors.

batteri - med nye nanofibre

New nanofiber marks important step in next generation battery developmentMaterials researchers have created a nanofiber that could help enable the next generation of rechargeable batteries and increase the efficiency of hydrogen production from water electrolysis.

biler på solenerrgi - spaltning af vand

Scientists May Be a Step Closer to Creating Solar-Fueled VehiclesResearchers are developing a practical method to convert water and sunshine into fuel --

biobrændsel fra alger - dyrkning af alger er blevet billigere

Plants at the pumpRegular, unleaded or algae? That's a choice drivers could make at the pump one day. But for algal biofuels to compete with petroleum, farming algae has to become less expensive. Toward that goal, a research team is testing strains of algae for resistance to a host of predators and diseases, and learning to detect when an algae pond is about to crash.

bioteknologiske produkter forventes at komme hyppigere i fremtiden

Federal U.S. agencies need to prepare for greater quantity, range of biotechnology productsA profusion of biotechnology products is expected over the next five to 10 years, and the number and diversity of new products has the potential to overwhelm the U.S. regulatory system, says a new report.

demens koblet til hurtigt stigende blodtryk hos midaldrende

Rapid blood pressure drops in middle age linked to dementia in old ageMiddle-aged people who experience temporary blood pressure drops that often cause dizziness upon standing up may be at an increased risk of developing cognitive decline and dementia 20 years later.

emballage de er bionedbrydelig

Biodegradable packages will keep your food freshResearchers are creating biodegradable food packaging materials, which, in addition, will also keep food fresh for longer. This innovation would solve two problems at once: assist in cutting down packaging waste and in reducing the number of food-borne illnesses.

energiplanter kan dyrkes uden at øge drivhuseffekten

Energy crop production on conservation lands may not boost greenhouse gasesGrowing sustainable energy crops without increasing greenhouse gas emissions, may be possible on seasonally wet, environmentally sensitive landscapes, according to researchers who conducted a study on Conservation Reserve Program (CRP) land.

grænser for vækst

The new theory of economic 'agrowth' contributes to the viability of climate policiesForty-five years after the first proposal on the limits to growth by the Club of Rome, the increasing concern over climate change and how to deal with it has reopened the debate questioning whether climate change mitigation policies are compatible with economic growth.

hungersnød i Finland i Middelalderen - påvist ved studier af tænder hos husdyr

Bones, teeth reveal the harsh conditions endured by the ancestors of indigenous Finnish cattle and sheep breeds, particularly in the Middle AgesThe most extensive isotope analysis of archaeological material in Finland revealed a fragment of the history of ancient Finnish cattle: the bones and teeth showed which plants the animals fed on. For thousands of years, the ancestors of today’s Finncattle and Finnsheep survived on scarce nutrition, but actually starved in the Middle Ages in particular.

kosttilskud med antioxidanter

Fremtids-scenarie: Tag en jordbærpille og undgå AlzheimerKosttilskud med antioxidanter fra jordbær kan være i butikkerne om få år.

leishmaniasis - vaccine er på vej

Scientists reveal structure of potential leishmaniasis vaccineLeishmaniasis, caused by the bite of a sand fly carrying a Leishmania parasite, infects around a million people a year around the world. Now, making progress toward a vaccine against the parasitic disease, researchers have characterized the structure of a protein from sand flies that can convey immunity to Leishmania.

LSD-forskning i Trumps USA

Can renaissance in psychedelic drug research survive Trump era?Psychedelics are poised to become treatments for mental illness and addiction but a renewed war on drugs could scupper this promise, says Kevin Franciotti

malaria - simplere behandling med Artemisone

Malaria treatment: Soon to be simpler, more flexible, and more efficient?Malaria infections may soon be treated much more efficiently than they are at present. Researchers have developed a novel drug release procedure for this purpose. The procedure enables the active ingredient Artemisone to be administered reliably at quantities and time intervals that are tailored exactly to the patients' individual needs.

metastaser forhindres af målretning mod cancerstamceller

Targeting cancer stem cells improves treatment effectiveness, prevents metastasisTargeting cancer stem cells may be a more effective way to overcome cancer resistance and prevent the spread of squamous cell carcinoma — the most common head and neck cancer and the second-most common skin cancer, according to a new study. Head and neck squamous cell carcinoma is a highly invasive form of cancer and frequently spreads to the cervical lymph nodes.

organiske fødevarer er ikke altid det mest bæredygtige for planeten Jorden

Organic is only one ingredient in recipe for sustainable food futureMany people choose organic thinking it's better for humans and the planet, but a new study finds that might not always be the case.

ozonlaget bliver ikke tyndere - men skal overvåges

NASA's new ozone layer watchdog takes orbit The ozone layer is no longer thinning, but we need to keep an eye on it If you should ever wonder how Earth’s ole ozone layer is holding up, rest assured, because NASA is watching it, hyper-vigilantly.

plast ædes af plankton

Video captures moment plastic enters food chainA video captures the moment plankton ingest a plastic microfibre.

robot - miniature men med ben

A new legged robot wants to wobble, crawl, and bounce its way into the marketMilitary Minitaur wants to get a leg up on wheeled robots Minitaur legged robot can go places wheels can't..

RSV-infektion respiratory syncytial virus - kvæg kan vaccineres

Investigational vaccine protects cattle from respiratory syncytial virusA novel vaccine protected cattle from respiratory syncytial virus (RSV) infection. The version of RSV that naturally infects cattle is closely related to human RSV, so the results suggest that a similar human RSV vaccine construct may provide protection in humans, according to the study authors.

sandheder og løgne - vi vælger information efter forudindtagede holdninger

Information avoidance: From health to politics, people select their own realityPeople deliberately avoid information that threatens their happiness and wellbeing. Researchers show that, while a simple failure to obtain information is the most clear-cut case of 'information avoidance,' people have a wide range of other information-avoidance strategies at their disposal. They are also remarkably adept at selectively directing their attention to information that affirms what th

superledende materialer - ny viden

Discovery in new material raises questions about theoretical models of superconductivityA new study has successfully created the first pure, single-crystal sample of a new iron arsenide superconductor, CaKFe4As4, and studies of this material have called into question some long-standing theoretical models of superconductivity.

Trump og FDA

Trump Expected to Choose Scott Gottlieb as His FDA HeadEarly tests for the agency under its new chief will include a pair of bills immediately slated for congressional renewal --

Trump og internet

If Trump Fans Love Freedom, They Should Love Net Neutrality Oppose net neutrality? Imagine a world where Comcast slows Fox News to a pixelated crawl while boosting Rachel Maddow—who stars on Comcast-owned MSNBC.

Trump og klima

Trump’s Climate Views: Combative, Conflicting and ConfusingThe president has spoken often about climate change, energy, coal and wind turbines. His statements are often provocative but not always consistent. A sampling.

Trump og miljø

If the EPA doesn't believe in science, what is it good for? What's left when the Environmental Protection Agency throws facts out the window? Increasingly, science isn’t guiding the policy and budget decisions of the EPA. What will that mean for the future of the United States—and the planet?.

Trump og miljø

EPA Is Pounded in Many WaysCongress and the White House are attacking the agency's budget, controlling data and barring advice from scientists who have EPA grants --

fugle: Struds fandtes i Indien for 25000 år siden

Evidence found of ostriches in India 25,000 years agoA team of researchers with members from several institutions in India has found evidence of ostrich relatives living in India as far back as 25,000 years ago. In their paper uploaded to the open access site PLOS ONE, the group describes finding avian eggshells, their DNA analysis of them and why they believe the finding bolsters certain aspects of continental drift theory.

hash hjælper epilepsi-patienter

Cannabis use in people with epilepsy revealed: Australian surveyThe first Australian nationwide survey on the experiences and opinions of medicinal cannabis use in people with epilepsy has revealed that 14 per cent of people with epilepsy have used cannabis products as a way to manage seizures. The study showed that of those with a history of cannabis product use, 90 per cent of adults and 71 per cent of parents of children with epilepsy reported success in ma

plutonium med uventet oxidationstrin

Unexpected oxidation state for molecular plutonium discoveredResearchers at Los Alamos National Laboratory in collaboration with the University of California - Irvine (UCI) have uncovered a significant new chemical attribute of plutonium, the identification and structural verification of the +2 oxidation state in a molecular system.

social angst kan have genetisk årsag

Social phobia: Indication of a genetic causePeople with social anxiety avoid situations in which they are exposed to judgment by others. Those affected also lead a withdrawn life. Researchers have now found evidence for a gene that is believed to be linked to the illness. It encodes a serotonin transporter in the brain. Interestingly, this messenger suppresses feelings of anxiety and depressiveness.

syntetiske gærkromosomer - tættere på kunstigt liv?

Biology team makes breakthrough in synthetic yeast projectLed by Tianjin University Professor Ying-Jin Yuan, TJU's synthetic biology team has completed the synthesis of redesigned yeast chromosomes synV and synX with the two studies .

syntetiske gærkromosomer - tættere på kunstigt liv?

Researchers assemble five new fully artificial yeast chromosomesA global research team has built five new synthetic yeast chromosomes, meaning that 30 percent of a key organism's genetic material has now been swapped out for engineered replacements. This is one of several findings of a package of seven papers published March 10 as the cover story for Science.

syntetiske gærkromosomer - tættere på kunstigt liv?

Five designer chromosomes bring synthetic life a step closerAn international effort to build a carefully edited version of the yeast genome from scratch has reached a milestone by completing five more of 16 chromosomes

syntetiske gærkromosomer - tættere på kunstigt liv?

Five new synthetic yeast chromosomes assembledA global research team has built five new synthetic yeast chromosomes, meaning that 30 percent of a key organism's genetic material has now been swapped out for engineered replacements. Like computer programmers, scientists add swaths of synthetic DNA to -- or remove stretches from -- human, plant, bacterial or yeast chromosomes in hopes of averting disease, manufacturing medicines, or making food

syntetiske gærkromosomer - tættere på kunstigt liv?

Synthetic Yeast Chromosomes Help Probe Mysteries of EvolutionTo work out how the genome evolved, bioengineers are recreating itcom

syntetiske gærkromosomer - tættere på kunstigt liv?

Designer Chromosomes Point to New Synthetic Life-FormsAn international effort aims to create baker’s yeast with laboratory-made DNA.

syntetiske gærkromosomer - tættere på kunstigt liv?

A New Lab-Built Fungus Eats Sugar and Burps Out Drugs Scientists are building the first eukaryote genome from scratch

autisme og kræft - uventt kobling (mangel på SHANK-proteinet er relateret til autisme; SHANK-proteinet forhindre brystkræftmetastaser

Unexpected link between cancer and autismResearchers have observed that a protein called SHANK prevents the spread of breast cancer cells to the surrounding tissue. The SHANK protein has been previously studied only in the central nervous system, and it is known that its absence or gene mutations are related to autism.

CRISPR - test i humane embryoner

First results of CRISPR gene editing of normal embryos releasedUntil now, CRISPR has only been tested in human embryos unable to develop into children. New results suggest the technique works much better on healthy embryos

ADHD kan give succes i forretningsverdenen (entrepreneurship.)

Harnessing ADHD for business successThe symptoms of ADHD foster important traits associated with entrepreneurship. That conclusion was reached in a study conducted by an international team of economists, who found that entrepreneurs with ADHD embrace new experiences and demonstrate passion and persistence. Their intuitive decision making in situations involving uncertainty was seen by the researchers as a reason for reassessing exis

Alzheimer efter slag mod hovedet - forslag til forklaring

Mystery brain particles may link head injuries to dementiaHead injuries cause immune cells in the brain to shed microscopic particles, which spread inflammation. This may be why head trauma is linked to dementia

Alzheimer: påvisning af placque med kemisk stof - dette stof øver levetid hos rundorme

Chemical that detects plaques in Alzheimer's brains extends lifespan of roundwormsWhile many anti-aging drugs don't live up to their claim, a tightly replicated study has discovered that a chemical used to detect amyloid plaques found in the brains of those with Alzheimer's extended the lifespan of thousands of roundworms similar in molecular form, function and genetics to humans.

biosensor til test af vand for indhold af lægemidler

Environmental researchers are developing new biosensors for testing waterBiologists from the University of Tübingen are part of an interdisciplinary team which has developed novel biosensors that enable pharmaceutical products to be detected more effectively in water. These sensors can measure two types of pharmaceutical substances – beta-blockers and non-steroidal anti-inflammatory drugs (NSAIDs) – in real-time and in low concentrations. The research was recently publ

brystkræft og prostatakæft - nye lægemidler

Potential drug candidates halt prostate and breast cancer growthTwo new drug candidates have now been designed to target prostate and triple negative breast cancers. The new research demonstrates that a new class of drugs called small molecule RNA inhibitors can successfully target and kill specific types of cancer.

Ebola-vaccine til chimpanser

Final biomedical trial on captive chimpanzees is first oral Ebola vaccine for saving wild apesThe results from the final biomedical research trial on captive chimpanzees for the foreseeable future have been published today in the journal Scientific Reports.

Ebola-vaccine til chimpanser

Ebola vaccine promising in chimps but may never be usedA promising oral vaccine could help protect Africa’s big apes from the deadly Ebola virus, but a ban on captive ape research means it may never see the light of day

flybrændsel produceres af gær

Petrol and jet fuel alternatives are produced by yeast cell factoriesThere have been many attempts to modify this stubborn little enzyme, but none have succeeded. Until now. With new findings from Chalmers University of Technology, the fatty acid synthase (FAS) enzyme has started to produce sustainable chemicals for biofuels. The results were recently published in the journal Nature Chemical Biology.

genetisk test af arbejdere tænkes tilladt i USA

House Republicans Would Let Employers Demand Workers' Genetic Test ResultsA controversial measure may be included in future healthcare reformcom

glutenfri kost øger diabetes-risiko

That faddish gluten-free diet may be raising your diabetes riskGoing gluten-free without a diagnosis? Growing evidence of potential health harms suggests you might want to think again, says Angry Chef Anthony Warner

greenbeard gen - hvorfor organismer vil samarbejde med nogle individer i stedet for med andre

Dawkins' fabled cooperative gene discovered in microbesGeneticists from the Universities of Manchester and Bath are celebrating the discovery of the elusive 'greenbeard gene' that helps explain why organisms are more likely to cooperate with some individuals than others

hackerangreb

Assange says leaks show CIA's 'devastating incompetence'WikiLeaks founder Julian Assange on Thursday accused the CIA of "devastating incompetence" for failing to protect its hacking secrets and said he would work with tech companies to develop fixes for them.

hackerangreb

Your brain is unique – here's how it could be used as the ultimate security passwordBiometrics – technology that can recognise individuals based on physical and behavioural traits such as their faces, voices or fingerprints – are becoming increasingly important to combat financial fraud and security threats. This is because traditional approaches, such as those based on PIN numbers or passwords, are proving too easily compromised. For example, Barclays has introduced TouchID, whe

hackerangreb

Staying a heartbeat ahead of hackersNearly a million new forms of malware are unleashed on the world every day. Manufacturers of software for smartphones, laptops and security cameras, as well as banks, retailers and government agencies, release upgrades frequently to try to protect customers and assets.

hackerangreb

The WikiLeaks CIA release—when will we learn?This week's WikiLeaks release of what is apparently a trove of Central Intelligence Agency information related to its computer hacking should surprise no one: Despite its complaints of being targeted by cyberattackers from other countries, the U.S. does a fair amount of its own hacking. Multiple federal agencies are involved, including the CIA and the National Security Agency, and even friendly na

hackerangreb

This Entrepreneur Dares You to Hack His GadgetsThe author and activist Bunnie Huang explains how companies benefit when users modify their devices.

hash øger risiko for slagtilfælde og hjertefejl

Marijuana use associated with increased risk of stroke, heart failureUsing marijuana raises the risk of stroke and heart failure even after accounting for demographic factors, other health conditions and lifestyle risk factors such as smoking and alcohol use, according to new research.

hoppende gener - ny mekanisme fundet i planters genom

Novel mechanism that detains mobile genes in plant genomeA team researchers has discovered a hitherto-unknown mechanism that detains transposable elements or “mobile genes” - which can move and insert into new positions in plant genomes.

hunde kan være manipulerende

Dogs use deception to get what they want from humans (a sausage)Who needs enemies with friends like these? Human’s best friend can be sneaky and manipulative – and all for a tasty treat

klimaændring: jordbund kan frigive mere CO2 end forventet

Soils could release much more carbon than expected as climate warmsSoils could release much more CO2 than expected into the atmosphere as the climate warms, according to new research by scientists from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab).

kradsning: det smitter at se nogle kradse sig - det er hardwired i hjernen viser ny forskning

Brain hardwired to respond to others' itchingItching is a highly contagious behavior. When we see someone scratch, we're likely to feel itchy, too. New research shows contagious itching is hardwired in the brain.

kradsning: det smitter at se nogle kradse sig - det er hardwired i hjernen viser ny forskning

This Itch Is InfectiousMany social animals start to feel itchy after watching one of their fellows scratch, and scientists now have a better understanding of why an itch can spread through a group.com

lagringsmedie: enkelt-atom-hukommelse

Single atom memory: The world's smallest storage mediumOne bit of digital information can now be successfully stored in an individual atom. This result is a breakthrough in the miniaturization of storage media and has the potential to serve as a basis for quantum computing.

læger kan testes for evne til at sy kirurgisk syning

What makes a good surgeon? Video analysis rates suturing skillsDoctors have varying styles for stitching up wounds. A machine-learning system tells doctors how well they’re doing to help improve their technique

mars kan man nok dyrke kartofler på

Kartofler kan nok sagtens gro på MarsKartofler reagerer positivt på at blive dyrket i Mars-lignende forhold. Opdagelsen kan også være en gevinst for os her på kloden med udsigt til mere ekstreme klimatiske forhold.

melatonin - risiko for forfalskning

Melatonin: What’s on the label isn’t in the bottleMelatonin is taken by millions each year. But does it work? Is it safe? And can you trust the label?

metaltræthed i stål kan nedsættes

Novel laminated nanostructure gives steel bone-like resistance to fracturing under repeated stressMetal fatigue can lead to abrupt and sometimes catastrophic failures in parts that undergo repeated loading, or stress. It's a major cause of failure in structural components of everything from aircraft and spacecraft to bridges and powerplants. As a result, such structures are typically built with wide safety margins that add to costs.

metaltræthed i stål kan nedsættes

Special steel inspired by bone is more resistant to crackingGiving steel a layered nanostructure similar to that of bone makes it more resilient to metal fatigue and could lead to safer structures

mikroskop med brug af væskedråber

Scientists make microscopes from dropletsLiquid droplets are natural magnifiers. Look inside a single drop of water, and you are likely to see a reflection of the world around you, close up and distended as you'd see in a crystal ball.

musiks fremkaldelse af følelse studeres med maskinlæring

Machine learning writes songs that elicits emotions from its listenersMusic, more than any art, is a beautiful mix of science and emotion. It follows a set of patterns almost mathematically to extract feelings from its audience. Machines that make music focus on these patterns, but give little consideration to the emotional response of their audience. Scientists have developed a new machine-learning device that detects the emotional state of its listeners to produce

prostata-kræft kan behandles med nyrekræftmedicin (forsøg i mus)

By boosting innate immunity, researchers eradicate aggressive prostate cancer in miceCabozantinib, an FDA-approved drug for patients with certain types of thyroid or kidney cancer, was able to eradicate invasive prostate cancers in mice by causing tumor cells to secrete factors that entice neutrophils -- the first-responders of the immune system -- to infiltrate the tumor. This novel approach, utilizing the innate immune system, produced near-complete clearance of invasive prostat

radioaktivt affald: giftige stoffer kan fiskes ud ved hjæp af arsenmolekyler

Potential approach to how radioactive elements could be 'fished out' of nuclear wasteManchester scientists have revealed how arsenic molecules might be used to 'fish out' the most toxic elements from radioactive nuclear waste - a breakthrough that could make the decommissioning industry even safer and more effective.

regenering af væv - ny måde

Researchers identify a new way to promote tissue regenerationHouston Methodist researchers have identified an immune pathway that promotes the formation of a cell that can develop into new tissues and organs.

regenering af væv - ny måde

Researchers identify a new way to promote tissue regenerationResearchers have identified an immune pathway that promotes the formation of a cell that can develop into new tissues and organs.

rensning af spildevand med sollys

Chemists can rapidly purify wastewater with sunlightChemists have found a way to use sunlight to purify wastewater rapidly and cheaply, and to make self-cleaning materials for buildings.

robotter - molekylære motorer kan bøjes og strækkes gentagne gange

On the path toward molecular robotsScientists in Japan have developed light-powered molecular motors that repetitively bend and unbend, bringing us closer to molecular robots.

smerte kan påvises med robot - hjælp for lægen

Robot that shows pain could teach doctors to recognise it betterDoctors are worse at spotting pain than laypeople, but a robot with realistic facial expressions could help them learn to better understand patients

stress i celler hjælpes med geler igangsat af et specielt proteinet i cellerne

Molecules form gels to help cells sense and respond to stressA specific protein inside cells senses threatening changes in its environment, such as heat or starvation, and triggers an adaptive response to help the cell continue to function and grow under stressful conditions, according to a new study by scientists from the University of Chicago.

stress i celler hjælpes med geler igangsat af et specielt proteinet i cellerne

Molecules form gels to help cells sense and respond to stressA specific protein inside cells senses threatening changes in its environment, such as heat or starvation, and triggers an adaptive response to help the cell continue to function and grow under stressful conditions, according to a new study.

tarmbakterier - immunsystemet skal lære at tolerere dem

Immunology: Live and let liveIn order to maintain the microflora in the gut, the immune system must be taught to tolerate foreign bacteria. Researches have now shown how immune surveillance cells are educated to perform this task.

tarmens stamceller er resistente for kemoterapi

The intestine has a reservoir of stem cells that are resistant to chemotherapyThe intestine has a high rate of cellular regeneration due to the wear and tear originated by its function degrading and absorbing nutrients and eliminating waste. The entire cell wall is renewed once a week approximately. This explains why the intestine holds a large number of stem cells in constant division, thereby producing new cell populations of the various types present in this organ.

Tasmanske djævel kræftsygdom kan nu behandles med immunterapi

Immunotherapy trial cures Tasmanian devils of DFTDAn international study involving multiple institutions over six years has shown that immunotherapy can cure Tasmanian devils of the deadly devil facial tumour disease (DFTD).

Tasmanske djævel kræftsygdom kan nu behandles med immunterapi

Immunotherapy trial cures Tasmanian devils of DFTDImmunotherapy can cure Tasmanian devils of the deadly devil facial tumor disease (DFTD), an international study involving multiple institutions over six years has shown.

transportproteiner i planter - udvikledes før de stoffer, de transporterer

Transport proteins evolved long before their compounds emergedDanish scientists from the DynaMo Center, University of Copenhagen, bridge an important gap that changes our understanding of the evolution of plant transport proteins.

Trump og klima

Will China take the green mantle from the U.S.?In the face of Donald Trump's campaign promise to pull the United States out of the Paris climate accord, China's President Xi Jinping told the U.N. in January, "The Paris agreement is a milestone in the history of climate governance…China will continue to take steps to tackle climate change and fully honor its obligations." Will China usurp the United States as the global leader in combating clim

virus påvirker kønnet af insekter - nedsætter hunligt afkom af inficeret hveps

Newly discovered virus affects sex ratio of insect-killing waspsScientists have identified a previously unknown virus that decreases the number of female offspring of the wasps it infects, according to a PLOS Pathogens study. The virus, discovered by Gongyin Ye's group of Zhejiang University, infects one species of a specific group of wasps known as parasitoid wasps.

virusmutationer ved spring til ny værtsart

Cross-species jumps may play unexpectedly big role in virus evolutionOn occasion, a virus may jump from one host species to another and adapt to the new host. Such cross-species transmission happens more often than expected, according to new research published in PLOS Pathogens, and it may play a much bigger role in virus evolution than previously thought.

øjet: løs retina kan limes med ny hydrogel (forsøg med kaniner)

Rabbits' detached retina 'glued' with new hydrogelA newly developed elastic gel administered in liquid form and shown to turn jellylike within minutes after injection into rabbits' eyes to replace the clear gelatinous fluid inside their eyeballs, may help pave the way for new eye surgery techniques, says an international team of researchers led by Japanese scientists.

øjet: løs retina kan limes med ny hydrogel (forsøg med kaniner)

Rabbits' detached retina 'glued' with new hydrogelA newly developed elastic gel administered in liquid form and shown to turn jellylike within minutes after injection into rabbits' eyes to replace the clear gelatinous fluid inside their eyeballs, may help pave the way for new eye surgery techniques, say scientists.

autisme og Fragile X syndrome

Promising lead reduces autism symptoms and moreFragile X syndrome is the most common cause of autism. A team of researchers, however, has provided a promising lead in battling this disease. The scientists identified a single protein that appears to be the culprit in causing many behavioral symptoms as well as molecular and cellular abnormalities related to Fragile X.

autisme: autisters styrker

Autism's "Island of Intactness"It is the search for strengths, however hidden, that results in progress in treating autistic children --

hukommelsesteknik så man husker i længere tid

A Computational Model of Systems memory Reconsolidation and ExtinctionIn the mammalian brain newly acquired memories are dependent on the hippocampus for maintenance and recall, but over time these functions are taken over by the neocortex through a process called memory consolidation. Thus, whereas recent memories are likely to be disrupted in the event of hippocampal damage, older memories are less vulnerable. However, if a consolidated memory is reactivated by a

hukommelsesteknik så man husker i længere tid

How to super-size your memory, according to scienceYou can super size your memory to make it more like the brain of a world memory champion, a scientific study suggests.

hukommelsesteknik så man husker i længere tid

You, Too, Can Become a memory Champion, Scientists SayOrdinary people can learn special memory strategies in just a few weeks, a new study shows.

hukommelsesteknik så man husker i længere tid

Maybe You, Too, Could Become A Super MemorizerAfter six weeks of training, people could memorize twice as much. Areas of the brain had begun communicating in new ways — a lot like what happens inside the heads of world memory champions.

hukommelsesteknik så man husker i længere tid

Ancient technique can dramatically improve memory, research suggests. Cultivating a ‘memory palace’ can make long-lasting improvements to recall, say scientists, suggesting many of us have untapped memory reserves.

hukommelsesteknik så man husker i længere tid

Super-sized memory is trainable and long lastingThe ability to perform astonishing feats of memory, such as remembering lists of several dozen words, can be learned, researchers report. After 40 days using a strategic memory improvement technique, individuals who had typical memory skills at the start and no previous memory training more than doubled their memory capacity, going from recalling an average of 26 words from a list of 72 to remembe

hukommelsesteknik så man husker i længere tid

Don't Forget: You, Too, Can Acquire a Super memoryLearning a memorization technique used by elite memory athletes leads to widespread changes in brain wiring --

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

New insight into secret lives of NeanderthalsNeanderthals dosed themselves with painkillers and possibly penicillin, according to a study of their teeth.

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Neanderthals Munched on 'Aspirin' and Woolly RhinosNeanderthals once dined on woolly rhinoceroses and wild sheep, and even self-medicated with painkillers and antibiotics, according to a new analysis of their dental plaque.

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Neandertal Tooth Plaque Hints at Meals--and KissesAnalysis paints picture of diets, medicine and possible intimacy with humans --

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Neanderthal tooth plaque hints at meals — and kissesAnalysis paints picture of diets, medicine and possible intimacy with humans. a

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Some Neanderthals Were Vegetarian — And They Likely Kissed Our Human AncestorsA new study of the dental plaques of three Neanderthals reveals surprising facts about their lives, including what they ate, the diseases that ailed them and how they self-medicated (and smooched).

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Dental plaque DNA shows Neandertals used 'aspirin'Ancient DNA found in the dental plaque of Neandertals - our nearest extinct relative - has provided remarkable new insights into their behaviour, diet and evolutionary history, including their use of plant-based medicine to treat pain and illness.

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Neanderthals may have medicated with penicillin and painkillersDNA extracted from dental plaque suggests our extinct cousins could self-medicate and they shared mouth bacteria with humans, perhaps transmitted by kissing

Neanderthal brugte aspirin og var vegetarer og kyssede måske vores forfædre dvs. spedte bakterier derved

Dental plaque DNA shows Neanderthals used 'aspirin'Ancient DNA found in the dental plaque of Neandertals -- our nearest extinct relative -- has provided remarkable new insights into their behavior, diet and evolutionary history, including their use of plant-based medicine to treat pain and illness.

uran af våbenkvalitet kan findes med laser

lasers can detect weapons-grade uranium from afarA technique for detecting enriched uranium with lasers could help regulators sniff out illicit nuclear activities from as far as a couple of miles away.

aboriginernes vej til Australien

Matter: How Did Aborigines Get to Australia? DNA Helps Solve a MysteryScientists used a genetic test to discover that the ancestors of Aboriginal Australians arrived 50,000 years ago and spread along the coastlines.

aboriginernes vej til Australien

Aboriginal hair shows 50,000 years connection to countryDNA in hair samples collected from Aboriginal people across Australia in the early to mid-1900s has revealed that populations have been continuously present in the same regions for up to 50,000 years - soon after the peopling of Australia.

aboriginernes vej til Australien

Aboriginal hair shows 50,000 year connection to AustraliaDNA in hair samples collected from Aboriginal people across Australia in the early to mid-1900s has revealed that populations have been continuously present in the same regions for up to 50,000 years -- soon after the peopling of Australia.

allergi mod virusmidlet abacavir skyldes at det bindes af et protein

Computer models could allow researchers to better understand, predict adverse drug reactionsNew computer models from North Carolina State University show how a variant of a common protein involved in human immune response binds to the antiviral drug abacavir, causing a severe life-threatening reaction known as the abacavir hypersensitivity syndrome (AHS). The work has implications for predicting severe adverse reactions caused by existing drugs and future drug candidates in subpopulation

altruisme afsløres ved virtual reality

Studying altruism through virtual realityA computer-based environment has been developed with the aim to shed light on the origins of altruism. This new study immersed participants in a virtual environment that reproduced a building on fire which they had to evacuate in a hurry, deciding whether to save their lives or interrupt their escape and help rescue an injured person. The results showed that altruistic individuals self-reported to

appetit i mus undertrykkes af et hormon, lipocalin 2

Bone-derived hormone suppresses appetite in miceLipocalin 2, a hormone secreted by bone cells, suppresses appetite in mice, researchers have discovered. The study findings, which reveal a new mechanism for regulating food intake and blood sugar, could lead to the development of new treatments for obesity, type 2 diabetes, and other metabolic disorders.

batteri-superfabrik tænkes bygget i Sverige

Tesla-afhopper vil bygge gigantisk batterifabrik i SverigeEt svensk konsortium med en tidligere Tesla-chef i spidsen vil bygge batterifabrik i Sverige. Den skal stå klar i 2023 og kommer efter planen til at koste over 31 mia. danske kroner. Fuldt udbygget kommer fabrikken til at dække 50 hektar.

blodforgiftning og biomarkør herfor

Researchers identify biomarker that predicts death in sepsis patientsThe runaway immune response to infection called sepsis is difficult to diagnose, and even more difficult to treat. Now, researchers have discovered a biomarker called methylthioadenosine (MTA) that can predict which patients are most likely to die from the disease. The findings could also help determine whether patients could benefit from therapies that either enhance or suppress the immune system

Crohn sygdom kan forværres af almindelig gærsvamp

Common yeast may worsen IBD symptoms in Crohn's diseaseDuring the past decade, the gut has experienced a renaissance as investigations focus on the role of the microbiome on human health. While most studies have focused on bacteria, the dominant microbial inhabitants in the gut, scientists used mouse studies to show the role of yeast in aggravating the symptoms of inflammatory bowel disease. Their work suggests that allopurinol, a generic drug already

e-cigaretter indeholder benzen, der er kræftfremkaldende

cancer-causing benzene found in e-cigarette vapors operated at high powerSignificant levels of cancer-causing benzene in e-cigarette vapors can form when the devices are operated at high power, scientists have found.

energi fra molekyl-"blade" - lagring af solenergi uden solpaneler

Chemists create molecular 'leaf' that collects and stores solar power without solar panelsAn international research team has engineered a molecule that uses light or electricity to convert the greenhouse gas carbon dioxide into carbon monoxide -- a carbon-neutral fuel source -- more efficiently than any other method of "carbon reduction." The discovery is a new milestone in the quest to recycle carbon dioxide in the Earth's atmosphere into carbon-neutral fuels and others materials.

fisk-fossil fundet i Kina - fra "tiden før fiskenes æra"

Ancient southern China fish may have evolved prior to the 'Age of fish'An ancient fish species with unusual scales and teeth from the Kuanti Formation in southern China may have evolved prior to the 'Age of fish', according to a new study.

fødevareforgiftning - ny påvisningsmetode

Moving toward faster, more accurate detection of food- and water-borne bacteriaFood poisoning is a scourge. Yet preventing it is far from foolproof. But in a new study, scientists report that they are closing in on a way to use a combination of color-changing paper and electrochemical analysis -- on plastic transparency sheets or simple paper -- to quickly, cheaply and more accurately detect bacterial contamination of fruits and vegetables in the field before they reach groc

genomet som 3D-kort

A three-dimensional map of the genomeCells face a daunting task. They have to neatly pack a several meter-long thread of genetic material into a nucleus that measures only five micrometers across. This origami creates spatial interactions between genes and their switches, which can affect human health and disease. Now, an international team of scientists has devised a powerful new technique that 'maps' this three-dimensional geograph

Guam - invasiv slange udrydder træboende fugle på øen

bird-slaying snakes ravage island forests too: studyA non-native snake species that has already wiped out most of Guam's tree-dwelling birds is also decimating the Pacific island's forests, researchers said Wednesday.

hackerangreb

Shocking New WikiLeaks Dump Shows Just How Vulnerable We Are to HackingThe new data dump by WikiLeaks showcases just how vulnerable our smartphones and smart TVs are to hacking. This first release, part of the larger Vault 7, provides insight into the massive capabilities of the CIA to use popular tech tools as a form of surveillance. Now, what happens when it gets into the wrong hands?

hackerangreb

Study examines 200 real-world 'zero-day' software vulnerabilitiesZero-day software vulnerabilities - security holes that developers haven't fixed or aren't aware of - can lurk undetected for years, leaving software users particularly susceptible to hackers. A new study from the RAND Corporation, based on rare access to a dataset of more than 200 such vulnerabilities, provides insights about what entities should do when they discover them.

hash - for og imod frigivelse

Pro-pot arguments fly higher with likely votersAs more states consider legalizing recreational marijuana, a range of arguments for and against legalization is swirling around the national conversation. Which of these arguments resonate most strongly with Americans? It's the arguments that support legalization, according to a new study.

hjernen: glutamat og nysgerrighed

[Discussion] Glutamate Involvement In Human Curiosity

hjernen: hæmmende nerveceller - ny viden

New insights into how inhibitory neurons contribute to functional networks in the cortexNetworks consist of many types of neurons, including some that send excitatory signals, increasing the likelihood of other neurons firing, and some that send inhibitory signals, decreasing the likelihood of other neurons firing. Researchers have now demonstrated that inhibitory neurons participate in finely-tuned, functionally-specific networks, similarly to excitatory neurons. Researchers suspect

hjernens genkendelse af lugte

A nose for smells? Practice makes perfectThe human brain has the ability to recognize and process a very wide range of sensory stimuli, from which it builds a mental representation. But do these representations change over time? Can we learn to classify and interpret stimuli more effectively? Neuroscientists have been trying to answer these questions by studying the olfactory system of mammals.

influenza H1N1 inficerer gravide og muterer derefter

Dampened immunity during pregnancy promotes evolution of more virulent fluDuring pregnancy, a mother's immune system is suppressed to protect the fetus, which is perceived as a foreign body because it is genetically different. A study in mice found that suppressed immunity during pregnancy creates a window of opportunity for the H1N1 influenza virus to infect the mother and to rapidly, within a few days, mutate into a more virulent strain.

kaffe (coffein) beskytter lunger mod oxygen ved oxygenterapi

Caffeine reduces oxidative stress, improves oxygen-induced lung injuryCaffeine may protect the lungs from damage caused by prolonged oxygen therapy, such as oxygen supplementation given to premature babies, new research suggests. The article is the first of its kind to study the positive effects of caffeine on the lungs’ minute tissue structures.

kemi: fremstilling af molekyler på ny måde (tættere på kunstig enzym-funktionalitet)

New enzyme-like tool lets chemists modify hard-to-reach spots on drug moleculesMarch 8, 2017 - Chemists at The Scripps Research Institute (TSRI) have devised a versatile molecule-building tool for creating new drugs and other chemical products.

kemi: fremstilling af molekyler på ny måde (tættere på kunstig enzym-funktionalitet)

New enzyme-like tool lets chemists modify hard-to-reach spots on drug moleculesChemists have devised a versatile molecule-building tool for creating new drugs and other chemical products. The invention brings chemistry a step closer to an ambitious goal: being able to use techniques of laboratory organic synthesis to make the highly selective transformations of molecules that enzymes catalyze in living cells -- but without enzymes' limitations.

knogle hos mus repareret på ny måde

New material regrows boneA team of researchers repaired a hole in a mouse's skull by regrowing 'quality bone,' a breakthrough that could drastically improve the care of people who suffer severe trauma to the skull or face.

koraller bruger forsvarsgener som stress-respons

Biologists identify ancient stress response in coralsStanford marine biologists have discovered that corals activate a specific group of ancient, defensive genes when exposed to stressful environmental conditions. These stress-induced genes could serve as a kind of warning sign for coral bleaching events.

kræft: brystkræft - immunsystemets "anden arm" modvirker brystkræft - gør tumorfremmere til tumor-hæmmere

Novel compound that engages 'second arm' of immune system reduces breast tumors, metastasesA compound able to reverse the allegiance of innate immune system cells - turning them from tumor enablers into tumor opponents - caused breast tumors in mice to shrink and withdraw from distant metastases, scientists report.

kræft: myelom-terapi med eksperimentelt middel LCL161

Therapy shrinks tumors in patients with multiple myelomaAn experimental drug, LCL161, stimulates the immune system, leading to tumor shrinkage in patients affected by multiple myeloma, report scientists.

kræftrelevant forskning: proteiner der kæmper mod hinanden - den ene vinder altid

In battle for real estate, a disordered protein wins outResearch findings that first had scientists scratching their heads have turned out to be 'quite revolutionary,' according to study leaders. The scientists found that in a competition between two apparently equivalent proteins, one protein wins out every time as it swoops in to claim a cellular binding target. This protein is of special interest to researchers because it can trigger cancer cells to

kræftstamceller: C-vitamin effektiv til at målrette stamceller

Vitamin C effective in targeting cancer stem cellsResearchers have measured the impact on cancer stem cell metabolism of three natural substances, three experimental pharmaceuticals and one clinical drug.

kulde: en milliardedel af en grad over absolut nul - forsøg på international rumstation

Space Station to Host Coldest Spot in the UniverseThis August, NASA plans to launch to the space station an experiment that will freeze atoms to only 1 billionth of a degree above absolute zero — more than 100 million times colder than the deep reaches of space.

kulde: en milliardedel af en grad over absolut nul - forsøg på international rumstation

The International Space Station May Soon Host the Coolest Place in the UniverseThe station's Cold Atom Laboratory will reach temperatures just a billionth of a degree above absolute zero --

magnetisk lagring med enkelt-atom

Magnetic hard drives go atomicPhysicists demonstrate the first single-atom magnetic storage

magnetisk lagring med enkelt-atom

IBM researchers create world's smallest magnetAn international team of researchers working at IBMs' San Jose research facility announced recently that they had created the world's smallest magnet—it was made from a single atom. In their paper published in the journal Nature, the team describes their achievement as the ultimate limit in reducing the size of magnetic storage media using the classical approach—they report that they were able to

magnetisk lagring med enkelt-atom

Magnetic Hard Drives Go AtomicPhysicists demonstrate the first single-atom magnetic storage --

malariavaccine effektiv viser klinisk forsøg

Ny malariavaccine effektiv i klinisk forsøgTyske forskere har udviklet en vaccine mod malaria baseret på det fulde patogen frem for kun delkomponenter. Den ser ud til at kunne give 100 pcts. beskyttelse mod sygdommen.

mosser var afgørende for evolution - udviklingen på land

The protective layer of prehistoric land plantsBiologists have discovered a mechanism in mosses that was crucial for the evolution of ecosystems on land. The investigators discovered this mechanism that facilitated the evolutionary transition of plants from fresh water to land in the moss Physcomitrella patens.

muskelkontraktion studeret med atomisk nøjagtighed - mulighed for nanomaskiner

Atomic resolution of muscle contractionAtomic images of muscle molecules in action have now been captured by researchers, giving possibility of new nanomachines.

myrer kan lære hvilke planter der er gode for deres svampekultur

Leaf-cutting ants learn to identify unsuitable plants from cues within the colonyLeaf-cutting ants can learn which plants are not suitable for the fungus gardens that supply their food before they even leave the colony, according to a study published March 8, 2017 in the open-access journal PLOS ONE by Andrés Arenas and Flavio Roces from University of Wurzburg, Germany.

nerveaxoner kan repareres af et bestemt molekyle

Molecule shown to repair damaged axonsA foray into plant biology led one researcher to discover that a natural molecule can repair axons, the thread-like projections that carry electrical signals between cells. Axonal damage is the major culprit underlying disability in conditions such as spinal cord injury and stroke.

oliespild i vand kan opsamles af ny skumtype

Reusable sponge created that soaks up oilScientists have invented a new foam, called Oleo Sponge, that not only easily adsorbs spilled oil from water, but is also reusable and can pull dispersed oil from the entire water column -- not just the surface.

organs-on-chip

New technology platform propels the use of 'organs-on-chips'A novel technology platform has been developed that enables the continuous and automated monitoring of so-called 'organs-on-chips' -- tiny devices that incorporate living cells to mimic the biology of bona fide human organs.

protein med transportfunktion i planter

Ny forskning i plante-transportproteiner overrasker forskereForskere fra Københavns Universitet har taget et vigtigt skridt mod en forståelse...

pumpe af billigt papir kan ved kapillærkraft bruges til pumpning af væsker - mulighed for biomedicinsk værktøj

Paper pumps power portable microfluidics, biomedical devicesBiomedical engineering researchers have developed inexpensive paper pumps that use capillary action to power portable microfluidic devices, opening the door to a range of biomedical tools.

religion er koblet til epilepsi

Researchers find neurological link between religious experiences and epilepsyA relationship between epilepsy and heightened religious experiences has been recognized since at least the 19th century. In a recent study, researchers found a neurological relationship exists between religiosity -- a disposition for spiritual experience and religious activity -- and epilepsy. This finding sheds light on the connection between religion and neuropsychological processes within the

robotter kan styres af hjernen

Researchers Take A Step Toward Mind-Controlled RobotsResearchers have created a system where humans can guide robots with their brainwaves, signaling to the machines when they've made a mistake. It could help improve the way humans and robots interact.

robotter styres af MRI

MRI-powered mini-robots could offer targeted treatmentInvasive surgical techniques allow physicians to effectively treat disease but can lead to sometimes serious complications and dramatically slow healing for the patient. Scientists instead want to deploy dozens, or even thousands of tiny robots to travel the body's venous system as they deliver drugs or a self-assembled interventional tool.

Silkevejen i Asien startede som gangspor mellem græsningsområder

Silk Road evolved as 'grass-routes' movementNearly 5,000 years ago, long before the vast east-west trade routes of the Great Silk Road were traversed by Marco Polo, the foundations for these trans-Asian interaction networks were being carved by nomads moving herds to lush mountain pastures, suggests new research from Washington University in St. Louis.

skaldethed mere almindelig hos lave mænd

Why do shorter men go bald more often?Short men may have an increased risk of becoming bald prematurely. An international genetic study at least points in this direction. During the study, the scientists investigated the genetic material of more than 20,000 men. Their data show that premature hair loss is linked to a range of various physical characteristics and illnesses.

sultperiode i Kina 1959-61 - virkninger på kroniske sygdomme

Chinese famine data shows no long-term health effects except for schizophreniaA systematic re-analysis of all previous studies of long-term health effects of prenatal exposure to the Chinese Famine of 1959-61 shows no increases in diabetes, high blood pressure and other chronic conditions among famine births except for schizophrenia. The analyzed studies reported that these conditions were more common among famine births. In the re-analysis, researchers compared outcomes in

søvngængeri - forskning af

The Science of SleepwalkingHow our brains can be both asleep and up and about at the same time.

tidskrystaller - og mulige kvantcomputere

The quest to crystallize timeBizarre forms of matter called time crystals were supposed to be physically impossible. Now they’re not. Nature 543 164 doi: 10.1038/543164a

tidskrystaller - og mulige kvantcomputere

Researchers create 'time crystals' envisioned by Princeton scientistsTime crystals may sound like something from science fiction, having more to do with time travel or Dr. Who. These strange materials—in which atoms and molecules are arranged across space and time—are in fact quite real, and are opening up entirely new ways to think about the nature of matter. They also eventually may help protect information in futuristic devices known as quantum computers.

tidskrystaller - og mulige kvantcomputere

Scientists create new form of matter, a time crystalScientists are reporting on the creation of a phase of matter, dubbed a time crystal, in which atoms move in a pattern that repeats in time rather than in space.

transposoner i mennesket

The proteins that domesticated our genomesEPFL scientists have carried out a genomic and evolutionary study of a large and enigmatic family of human proteins, to demonstrate that it is responsible for harnessing the millions of transposable elements in the human genome. The work reveals the largely species-specific gene-regulatory networks that impact all of human biology, in both health and disease.

Trump og FDA - lempelse af krav til medicinske forsøg - betydning heraf

Don't relax drug approval process, experts warnExperts are warning that moves to deregulate America's drug approval process could see a flood of unproven and even harmful new drugs enter the market that could threaten human health.

Trump og klima

E.P.A. Head Stacks Agency With Climate Change SkepticsScott Pruitt seems intent on building an E.P.A. leadership that is fundamentally at odds with the officials who carry out the agency’s missions.

vaccination uden nål

Oral delivery system could make vaccination needle-freePatients could one day self-administer vaccines using a needleless, pill-sized technology that jet-releases a stream of vaccine inside the mouth, according to a proof-of-concept study.

atomvåben

Seven tips for surviving the apocalypse Billionaires who have made their fortunes in Silicon Valley seem to be worried about the future. So worried in fact, that some of them are reportedly buying vast estates in places such as New Zealand, as "apocalypse insurance". Boltholes to head to in the event of doomsday scenarios such as nuclear attack or global political meltdown.

hukommelsestræning

How to train your brain to be like a memory champion’s Volunteers who practised a technique favoured by elite mnemonists more than doubled their memory capacity – and their brains became more champion-like

organs on chips

New technology platform propels the use of 'organs-on-chips' A research team led by scientists from Brigham and Women's Hospital has developed a novel technology platform that enables the continuous and automated monitoring of so-called "organs-on-chips"—tiny devices that incorporate living cells to mimic the biology of bona fide human organs.

søvn bliver dybere af lyde der er synkrone med hjernebølger

Sound waves boost older adults' memory, deep sleep Gentle sound stimulation -- such as the rush of a waterfall -- synchronized to the rhythm of brain waves significantly enhanced deep sleep in older adults and tripled their ability to recall words, reports a new study. The goal is to make the new technology available for home use.

vaccinefrygt

Parental concerns reduce uptake of child flu vaccine The first study investigating parental attitudes towards the UK's child flu vaccine has found concerns about safety and side effects may negatively influence uptake, and recommends that public health messages need to be reinforced.

CRISPR brugt til studie af Archae-bakterier

A new tool for genetically engineering the oldest branch of life A new study has documented the use of CRISPR-Cas9 mediated genome editing in the third domain of life, Archaea, for the first time. Their groundbreaking work has the potential to vastly accelerate future studies of these organisms, with implications for research including global climate change.

dendritmolekyler - ny viden

Pushing the limits of organic synthesis Researchers have achieved a new understanding of dendritic molecules which could play a role in drug and gene delivery and antimicrobial resistance.

Energi-ø i Nordsøen

Tre lande vil opføre kunstig “energi-ø” i Nordsøen En kæmpe kunstig ø midt i Nordsøen skal i fremtiden forsyne 80 mio. europæere med strøm, hvis det står til Danmark, Holland og Tyskland.

graviditet: folinsyre har betydning for barnets blodtryk

High folic acid level in pregnancy may decrease high blood pressure in children Babies born to mothers with cardiometabolic risk factors were less likely to develop high blood pressure if their mothers had higher levels of folate during pregnancy.

internet kontra bøger

When Your Kid Asks a Question, Hand Them a Book—Not a Phone It'll get them excited about the magic of learning.

klimaændring

Most people don’t know climate change is entirely human-made Even in eco-friendly Norway, only a minority of people realise that global warming is entirely due to our actions, survey of four European countries reveals

kunstig energi-ø midt i Nordsøe

Tre lande går sammen om kunstig energi-ø midt i Nordsøen Holland, Tyskland og Danmark undersøger nu, om en kæmpe kunstig ø på Doggerbanke midt i Nordsøen kan gøre fremtidens udbygning af vindenergi bedre og billigere.

moral påvirkes af landets politik

The Weird Ways Your Politics Affects Your Morals Our morals compel us toward helping our team win. This can turn even otherwise innocuous decisions into "us vs. them."

nanoteknologi i lægevidenskab

Researchers take big step forward in nanotech-based drugs Nanotechnology has become a growing part of medical research in recent years, with scientists feverishly working to see if tiny particles could revolutionize the world of drug delivery.

Neanderthaleres madvaner

Teeth Hint at a Friendlier Neanderthal By sequencing DNA in Neanderthal dental plaque, scientists were able to find out about their diets—and their good relations with modern humans.

prostata: ikke-kirurgisk behandling virker

Nonsurgical treatment for enlarged prostate remains effective for years A minimally invasive treatment that reduces urinary tract symptoms for men with enlarged prostates maintains its effectiveness for at least three years after patients undergo the therapy, according to new research. This study of 1,000 men is the largest of its kind to evaluate the long-term effectiveness of prostate artery embolization (PAE).

robotter støttes økonomisk

UK announces extra funding for robotics and driverless cars The UK 2017 budget allocates £270 for research into biotech, robotic systems and driverless vehicles, and confirms funds for trialling 5G connectivity

robotter støttes økonomisk i Storbritannien

Budget 2017: Robotics, driverless cars and 5G to get UK funds The chancellor promises £270m to put the UK at the forefront of ground-breaking technologies.

sandheder og løgne

How to Stamp Out Fake News? Innovate the Attention Economy There is a wide definition of fake news, and a narrow one. These two types of fake news have different origins.

slangeolie og pseudovidenskab

Why Do Prestigious Hospitals Sell Snake Oil? It is important for consumers to understand the phenomenon of hospitals, even prestigious hospitals, offering dubious treatments, and how we got here. Don't be fooled by the apparent endorsement of nonsense. It is still nonsense.

stamceller der drejer uret tilbage

Stem cell reprogramming factor controls change in cellular energy generation University of Tsukuba-led researchers explored the function of the reprogramming factor KLF4 in production of induced pluripotent stem cells (iPSCs). KLF4 was shown to bind upstream of the Tcl1 target gene, which controls a metabolic change in energy generation during the acquisition of cellular pluripotency. This helps explain how cells turn back the developmental clock from adult to stem cell, a

Trump og kvinder

Millions raised for women’s health after Trump’s abortion gag More than $191 million has been pledged to help fill the $600 million shortfall in women’s health funding created by reinstatement in the US of the global gag rule

Trumps 1. tale i Congress, reaktioner

Bernie Sanders: https://www.youtube.com/watch?v=8eK-5ivYb3o
Michael Moore: https://www.youtube.com/watch?v=FzIGs0KMd4Q
Bill Maher: https://www.youtube.com/watch?v=SAnEbk8mX64

ulve på Fyn

Spor af ulve-DNA fundet på Fyn Analyser af DNA fra dødfundet rådyr på Fyn tyder på, at det er blevet dræbt...

ulve på Fyn

Dna-forskere er ikke i tvivl: Ulven er nået til Fyn For første gang i nyere tid er der fundet spor af ulv på Fyn, bekræfter eksperter

ældning af celler forhindret med et protein: SETD8 enzymet

Cellular senescence prevented by the SETD8 enzyme An enzyme that blocks cellular senescence and its mechanisms has been discovered by a Japanese research team. They found that a reduction of the enzyme SETD8, which regulates cell proliferation and gene function, results in the promotion of various cell aging features.

brændeovne er skadelige

https://ing.dk/artikel/forskere-tvivler-ikke-braendeovne-skadelige-194776|Forskere tvivler ikke: Brændeovne er skadelige]]
En kombination af modelleringer, målinger og befolkningsundersøgelser gør forskerne sikre på, at partikler fra biomasse-afbrænding skader sundheden.

kreativitet

https://www.scientificamerican.com/article/the-unleashed-mind1/|The Unleashed Mind]]
Highly creative people often seem weirder than the rest of us. Now researchers know why --

robotter i krig

https://ing.dk/artikel/ny-afhandling-militaere-robotter-ma-vurderes-sag-sag-194774|Ny afhandling: Militære robotter må vurderes fra sag til sag]]
Der er intet i krigens love, der generelt ulovliggør autonome våben. Til gengæld kan de heller ikke blåstemples som generelt lovlige, konkluderer ny ph.d.-afhandling.

Trump - og science

https://www.wired.com/2017/03/topsy-turvy-world-political-science-trumps-america/|The Topsy Turvy World of Political Science in Trump’s America]]
Finding balance between science and politics has never been trickier.

trådløse apparater

https://ing.dk/artikel/fremtidens-ultralydsbilleder-kommer-skyen-194789|Fremtidens ultralydsbilleder kommer fra skyen]]
Ny dansk metode reducerer datamængden ved ultralydsscanning. Det åbner for trådløse apparater, der henter computerkræfter fra cloud computing.

autisme - kan overvinde sprogvanskeligheder når de når voksenalderen

Some adults with autism overcome language hurdles The brains of some adults with autism are able to compensate for language comprehension challenges that are a hallmark of the disorder in children, research shows. Children with autism have difficulty sorting out pairs of words that are unrelated—like “clock” and “frog”—from those that are related—like “baby” and “bottle”—making it hard for them to process written or spoken language. Scientists h

autisme - påvist ved hjernescanning i 6 måneders alderen

How Brain Scans in Infants May Predict AutismBrain scans of infants as young as 6 months old may be able to predict whether a child will develop autism, a new study suggests.

autisme: genetisk database

World's largest autism genome database shines new light on many 'autisms'An additional 18 gene variations have been identified that appear to increase the risk of autism. The study involved the analysis of 5,205 whole genomes from families affected by autism -- making it the largest whole genome study of autism to date.

autisme: MRI af spædbørn

Infant MRIs show autism linked to increased cerebrospinal fluidA national research network found that many toddlers diagnosed with autism at two years of age had a substantially greater amount of extra-axial cerebrospinal fluid (CSF) at six and 12 months of age, before diagnosis is possible. They also found that the more CSF at six months -- as measured through MRIs -- the more severe the autism symptoms were at two years of age.

carbon der er magnetisk

Czech scientists develop magnetic carbonA dream of many generations of researchers has been fulfilled by a discovery made by scientists at the Regional Centre of Advanced Technologies and Materials (RCPTM) at the Palacky University in Olomouc. By using graphene, an ultrathin form of carbon, these scientists prepared the first non-metallic magnet that retains its magnetic properties up to room temperature. In doing so, they disproved the

celler: Syntetisk receptor

World-first synthetic receptor mimics how cells 'talk' to the world around themResearchers from the University of Bristol have found a way to mimic the way cells in living organisms 'talk' to the world around them by creating a world-first synthetic receptor which can respond to chemical signals just like its natural equivalent.

DNA: syntetiske DNA-motorer i levende celler

How molecular machines may drive the future of disease detection and drug deliveryResearchers describe the creation of synthetic DNA motors in living cells. The process demonstrates how DNA motors can be used to accomplish specific and focused biological functions in live cells. The team believes the findings could lead to improved disease detection and drug delivery.

DNA-sekvensbestemmelse

Pushing the boundaries of DNA sequencingA young company developing technology created at the University of New Mexico (UNM) is on a mission to disrupt the landscape of DNA sequencing.

indlæring: variation i motivation

In learning, every moment countsPsychologists have uncovered strong variability in motivation in learning situations.

virusdatabase

New database of DNA viruses and retroviruses debutsThere are more microbes in, on, and around the planet than there are stars in the Milky Way. Microbes affect food production; air quality; natural breakdown of plants, trees and biomass; soil quality for agriculture; and much more. To work with these microbes, scientists need to learn more about how microbes and viruses interact. Viruses influence microbes' abilities to work. Scientists at the U.S

adfærd - vi foretrækker spontant vores egne teorier - kaldet SPOT bias

Researchers Identify a New Cognitive Bias "My theory is true, if I do say so myself." SPOT stands for “Spontaneous Preference For Own Theories,” and it’s a newly identified cognitive bias

antibiotika polymyxin resistens

Researchers discover new variant on notorious resistance genePolymyxin antibiotics are used as a last resort to treat certain multidrug resistant bacteria. A team of investigators has discovered a new variant on a well-known gene that causes resistance to polymyxins and others. More troubling, the gene containing this mechanism was found in a healthy individual during a routine medical examination, suggesting that other healthy carriers may be spreading thi

bakterier: Gram-negative bakterier kan bekæmpes med et parasitmiddel pentamidin

One-two punch may floor worst infectionsScientists have discovered the antiprotozoal drug pentamidine disrupts the cell surface of Gram-negative bacteria, even the most resistant. The anti-fungal medication was particularly potent when used with antibiotics against multidrug resistant bacteria.

berøring varmer venligt

Virtual characters that touch you are seen as being warmer and friendlierTouch is a basic need. A new study has shown that virtual characters that can touch you are seen as being warmer and friendlier. Previous research had already shown that this applies to human interaction. This new study has demonstrated that the same principle applies to interactions with virtual characters.

dopamin-belønningsystemet

Brain’s reward system earns researchers €1 million prizeThe dopamine reward system plays a role in everything from drug addiction to psychopathic behaviour, and is important for teaching us to make good decisions

dyrs sans for tid på året

Scientists discover how animals measure time of year to reproduceAnimals need to measure the time of year so that they can anticipate and adapt to the arrival of a new season to align reproduction, as well as other vital functions critical for survival. A new study, conducted at the University of Bristol, has identified how animals measure annual time to control seasonal fertility.

elektriske fisk

Study shows how skates, rays and sharks sense electrical fieldsSharks, rays and skates can hunt for prey hidden in the sandy sea floor by "listening" for faint traces of bioelectricity—they can literally sense their prey's heart beating. The basic anatomy of the electro-sensory organs that accomplish this feat has been known for decades, but the biological mechanisms - how electrosensory cells pick up faint electrical signs of life—has remained a puzzle.

Epilepsi-hjernen har anderledes netværk

Statistics method shows networks differ in epileptic brainsA novel statistical approach to analyzing data from patients with epilepsy reveals details about their brains' internal networks.

Grønland smelter

Icy Lakes in Greenland Drain into the OceanThe discovery will help scientists better understand how the Greenland ice sheet is melting -

Havskildpadde havde slugt næsten 1000 mønter

Sea Turtle Named Bank Had 915 Coins Removed from StomachA sea turtle in Thailand had to undergo an operation to remove 915 coins from its stomach.

hjernen har muligvis master-gener som styrer talrige andre gener

Head injuries can alter hundreds of genes and lead to serious brain diseasesHead injuries can adversely affect hundreds of genes in the brain that put people at high risk for diseases including Alzheimer's, Parkinson's, post-traumatic stress disorder, stroke, ADHD, autism, depression and schizophrenia, life scientists report. The researchers have identified for the first time potential master genes which they believe control hundreds of other genes that are linked to many

hjernens belønningscenter

Prize for cracking brain's 'feel good' systemThree UK-based scientists who have studied the brain’s reward centre win a prestigious prize worth 1m euros.

homeopati pseudovidenskab

Corrigendum. The week in review for 03/05/2017Canada's Bad Science Wants You. Penguins get acupuncture, tiger cubs get chiropractic. Naturopaths and homeopaths let people know they are doctors in 4 seconds. Homeopathic lead for lead toxicity. And more

indlæringlyd i klasseværelset

Researchers create new tool that measures active learning in classroomsResearchers at San Francisco State University have developed a tool that for the first time can measure the extent to which instructors use innovative teaching methods by analyzing simple audio recordings of classroom sounds, according to a study published today in the Proceedings of the National Academy of Science.

kemi: Omdannelse af estere til ethere ved hjælp af palladium-katalysator

Revolutionary process to create ether from esters using metal catalystsA group of Waseda University researchers has developed a new process using palladium or nickel as a catalyst for removing carbon monoxide from esters to produce ethers. This innovation provides new opportunities for development of drugs to fight cancer, malaria and more.

materialer bygges i 3D så de efterligner træ og knogler

Novel 3-D manufacturing leads to highly complex, bio-like materialsResearchers have developed a unique, 3-D manufacturing method that for the first time rapidly creates and precisely controls a material's architecture from the nanoscale to centimeters -- with results that closely mimic the intricate architecture of natural materials like wood and bone.

medicinske gennembrud holder ofte ikke vand

Reports Of Medical Breakthroughs Often Don't Prove Out Medical breakthroughs that were covered by newspapers were often later disproved by more comprehensive research, a study finds. That's a problem for scientists and journalists.

motion frigør et fedtbrændende hormon kaldet irisin - og har betydning for knogler

Exercise-induced hormone irisin linked to new mechanisms for bone metabolismTwo weeks of voluntary wheel running induced higher expression of irisin -- a fat-burning hormone released during exercise -- in bone tissue in mice. In addition, systemic administration of irisin increased bone formation and thickness, mimicking the effects of exercise on the mouse skeletal system.

OCD

Brain’s inability to see that something is safe causes OCDPeople with obsessive compulsive disorder aren’t more afraid of things than other people, they struggle to learn that mildly risky things are generally safe

pingvin-kæmpe i New Zealand (fossil)

Paleo Profile: New Zealand's Giant Dawn PenguinFoot bones reveal one of the largest, and oldest, penguins of all time -

robot finder dine fejl

Humans control robots with their minds by watching for mistakesAn EEG-based system uses the brain signals generated when we spot an error to correct an industrial robot’s movements as it works

robot opdager din fejl

Baxter the Robot Fixes Its Mistakes by Reading Your Mind Oh good. To tell when it's made a mistake, a charming robot reads your mind

robotter

Robot uses social feedback to fetch objects intelligentlyBy enabling them to ask a question when they're confused, an algorithm helps robots get better at fetching objects, an important task for future robot assistants.

robotter der stiller spørgsmål

Robot uses social feedback to fetch objects intelligentlyIf someone asks you to hand them a wrench from a table full of different sized wrenches, you'd probably pause and ask, "which one?" Robotics researchers from Brown University have now developed an algorithm that lets robots do the same thing—ask for clarification when they're not sure what a person wants.

stamcellebehandling Aarhus

AUH får kvalitetsstempel for stamcellebehandlingStamcellebehandlingen på Aarhus Universitetshospital er så god, at de nu får et internationalt kvalitetsstempel.

Trump og klima

White House Wants to Slash Budgets of Top Climate Science AgenciesThe Trump administration's budget proposal includes a drastic 17-percent cut to the National Oceanic and Atmospheric Administration (NOAA), one of the government's top weather and climate-science agencies, according to a report by The Washington Post.

==Trump og milj==ø
Congress Targets Endangered Species ActThe Trump administration and Republicans have introduced at least 11 pieces of legislation that could weaken the Endangered Species Act or prevent some threatened wildlife from being protected.

Uddøen i Perm skete måske ved en kort istid

Cold extermination: One of greatest mass extinctions was due to an ice age and not to Earth's warmingThe Earth has known several mass extinctions over the course of its history. One of the most important happened at the Permian-Triassic boundary 250 million years ago. Over 95% of marine species disappeared and, up until now, scientists have linked this extinction to a significant rise in Earth temperatures. But researchers have now discovered that this extinction took place during a short ice age

uddøen Perm

Timing of global regression and microbial bloom linked with the Permian-Triassic boundary mass extinctionThe Earth has known several mass extinctions over the course of its history. One of the most important happened at the Permian-Triassic boundary 250 million years ago. Over 95 percent of marine species disappeared and, up until now, scientists have linked this extinction to a significant rise in temperatures. But researchers from the University of Geneva (UNIGE), Switzerland, working alongside the

zika i canadiske turister

Zika virus in Canadian travelers more severe than expectedA new study sheds light on the acquisition and features of Zika virus in Canadian travelers, indicating it was as commonly confirmed as dengue in people returning from the Americas and the Caribbean but more severe than expected, according to a new study.

autisme - kobling til synæstesi

Sensory links between autism and synesthesia pinpointedConcrete links between the symptoms of autism and synesthesia have been discovered and clarified for the first time. New research finds similarities between the two conditions and suggests how they might be much more closely associated than previously thought.

autisme: nye gener for autisme opdaget

Discovery of 18 New Autism-Linked Genes May Point to New TreatmentsMost of the candidate genes play roles in cellular processes also implicated in intellectual disability --

autisme-teori

Study tests the 'three-hit' theory of autismCould a genetic predisposition to autism together with early stress have a more detrimental effect on boys than on girls? In experiments with mice, researchers found evidence that three factors -- genes, environment, and sex -- work together to produce problems with social interaction, a hallmark of autism.

stamceller: frembringelse af begyndelsen af kunstigt foster uden brug af kønsceller

Forskere dyrker verdens første kunstige fosterTo typer stamceller aftaler arbejdsopgaver via biokemisk kommunikation, fortæller forskere, som har frembragt begyndelsen til et kunstigt foster helt uden brug af sæd eller æg.

allergi for penicillin kan være ukorrekt - hudtest kan afsløre det

Skin testing, computerized support tool can improve antibiotic use in hospital inpatientsInvestigators have developed two approaches to increasing the use of penicillins and cephalosporins -- highly effective antibiotics that are not as problematic as many alternatives -- in hospitalized patients previously believed to be allergic to penicillin.

astma hyppigere hos kvinder

Women suffer from asthma symptoms more frequently and more severely than menWomen suffer more frequently and more severely from pollen and food allergies and therefore also from asthma. Firstly, female sex hormones increase the risk and symptoms of asthma and allergies and, secondly, hormone preparations such as the contraceptive pill play a role.

bakterier kan spredes med vind

WATCH: Raindrops Catapult Bacteria Into The Air, And It's Beautiful They don't have wings, but bacteria sure can fly. Researchers at MIT say that tiny bubbles trapped by raindrops play a part in launching bacteria on long-distance flights.

bakterier, der er dødelige, skal bekæmpes med enkeltcelleorganismer der æder bakterierne

Scientists engineering cells to eat deadly bacteriaResearchers at the Johns Hopkins University are working to engineer single-cell organisms that will seek out and eat bacteria that are deadly to humans.

bananfluer formerer sig mindre under en infektion - årsag påvist

Fruit flies halt reproduction during infectionA protective mechanism that allows fruit flies to lay fewer eggs in response to bacterial infection is explained in a new study.

batteri-nyhed

3x energi og nul brandfare: Manden bag lithium-ion-batteri er klar med arvtager94-årig opfinder står bag nyt batteri, der slår hans eget revolutionerende lithium-ion-batteri på flere parametre. DTU-professor er begejstret.

blåbær giver bedre hjernefunktion hos ældre

Blueberry concentrate improves brain function in older peopleDrinking concentrated blueberry juice improves brain function in older people, according to new research.

brandsår behandles ved pålægning med steril fiskeskind

Fiskeskind redder brandsårsofre i Brasilien- Og det lyder slet ikke urealistisk, at man kan bruge fiskeskind, som vi herhjemme bruger grisehud, forklarer dansk overlæge.

broccoli indeholder stof mod fedme

Sulforaphane, a phytochemical in broccoli sprouts, ameliorates obesitySulforaphane, a phytochemical in broccoli sprouts, is known to exert effects of cancer prevention by detoxicating chemical compounds taken into the body and by enhancing anti-oxidation ability. In the present study, experiments with mice demonstrate that sulforaphane ameliorates obesity, the conclusion based on the two functions of sulforaphane newly uncovered; amelioration of obesity through enha

brystkræft kan behandles med diabetesmedicin måske

Diabetes drug may be effective against deadly form of breast cancer, study suggestsResearchers have discovered that a metabolic enzyme called AKR1B1 drives an aggressive type of breast cancer. The study, 'AKR1B1 promotes basal-like breast cancer progression by a positive feedback loop that activates the EMT program,' suggests that an inhibitor of this enzyme currently used to treat diabetes patients could be an effective therapy for this frequently deadly form of cancer.

brystkræftoverlevere kan godt spise sojaprodukter

Eating Soy Has Benefits For Breast Cancer Survivors, Study Finds New research finds eating soy milk, edamame and tofu does not have harmful effects for women with breast cancer, as some have worried. In fact, for some women, soy consumption was tied to longer life.

brystkræftpatienter har gavn af Perjeta i kombination med Herceptin og kemoterapi

Perjeta forlænger livet hos patienter med brystkræftKvinder med aggresiv brystkræft lever længere uden tilbagefald, når de får Perjeta i kombination med Herceptin og kemoterapi, viser nyt studie.

carbonat-kemi

Synchrotron sheds (X-ray) light on carbon chemistry at ocean surfacesCarbonate, bicarbonate, and carbonic acid emerge when atmospheric carbon dioxide dissolves in the oceans, which is the largest sink for this greenhouse gas. Researchers are interested in better understanding the carbonate system to potentially help facilitate carbon sequestration schemes, to help mitigate climate change. Recently, researchers made breakthrough discoveries about the carbonate speci

demens: kaffe og 23 andre stoffer beskytter ved at fremme et enzym

Caffeine boosts enzyme that could protect against dementiaResearchers have identified 24 compounds -- including caffeine -- with the potential to boost an enzyme in the brain shown to protect against dementia.

depression ændrer hjernens arkitektur

Brain architecture alters to compensate for depressionStructural differences in the cerebral cortex have been found in patients with depression. These differences normalize with appropriate medication, report researchers.

dinosaurers måltid

A 180 million year old dinosaur dinnerWhile artistic reconstructions of dinosaurs preying on each other are a fantastic way of illustrating the real-life behaviours of these fantastic creatures, direct evidence of dinosaur-food interactions in the fossil record are surprisingly rare.

evolution - hvorfor dyr gik på land

Why Did Life Move to Land? For the View Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. A new study, out today, suggests that the shift to lungs and limbs doesn’t tell the full story of these creatures’ transformation. As they emerged from the sea, they gained something perhaps more p

fisk der ikke er kogt nok kan give sygdommen clonorchiasis i Kina - 15 mill. mennesker ramt

Risks from eating undercooked fish: Clonorchiasis risk across China mappedClonorchiasis, a neglected tropical disease usually acquired by eating undercooked freshwater fish, affects an estimated 15 million people around the globe. More than 85 percent of cases are concentrated in China. Now, researchers have produced high-resolution risk maps for clonorchiasis in China. Scientists have identified provinces with the highest risk and important predictors for clonorchiasis

fotosyntese - ny viden

New study shines light on photosynthesisTerry Bricker, Moreland Family Professor in the Louisiana State University (LSU) Department of Biological Sciences, and colleagues at Palacký University in the Czech Republic and at the University of Cincinnati in Ohio have solved a longstanding mystery in photosynthesis, a process used by plants and other organisms to convert light energy into chemical energy. Their findings are presented in a st

fotosyntese - ny viden

New study shines light on photosynthesisResearchers have solved a longstanding mystery in photosynthesis, a process used by plants and other organisms to convert light energy into chemical energy.

fusion

Study examines tungsten in extreme environments to improve fusion materialsA fusion reactor is essentially a magnetic bottle containing the same processes that occur in the sun. Deuterium and tritium fuels fuse to form a vapor of helium ions, neutrons and heat. As this hot, ionized gas—called plasma—burns, that heat is transferred to water to make steam to turn turbines that generate electricity. The superheated plasma poses a constant threat to the reactor wall and the

fødsel før tiden kan nedsættes

Vaginal progesterone reduces the rate of preterm birthTreatment with vaginal progesterone reduced the risk of preterm birth, neonatal complications and death in pregnant women with twins and who have a short cervix -- a risk factor for preterm birth -- according to a meta-analysis of individual patient data.

grafen til styring af teraHertz bølger

Towards mastering terahertz waves?Terahertz waves allow for the detection of materials that are undetectable at other frequencies. However, the use of these waves is severely limited by the absence of suitable devices and materials allowing to control them. Researchers have developed a technique based on the use of graphene, which allows for the potentially very quick control of both the intensity and the polarization of terahertz

Grønland smelter

Forskere: Trods indfriede klimamål kan Nordpolens is forsvindeIsen kan fortsætte med at smelte hurtigt, selv om verdens klimamål bliver opfyldt, viser forskning.

hackere

Anbefaling til danske politikere på vej til Rusland: Lad iPhone, iPad og computer blive hjemme Medlemmerne af Folketingets Udenrigspolitiske Nævn er blevet advaret mod at tage blandt andet deres iPhones med til Rusland.

hacking - wikileaks afslører CIA's cyberarsena

WikiLeaks Just Dumped a Mega-Trove of CIA Hacking Secrets In a leak of nearly 9,000 documents, WikiLeaks puts the CIA's secrets in the open

hacking - wikileaks afslører CIA's cyberarsena

Kæmpe Wikileaks-læk: CIA har mistet det meste af sit cyberarsenal https://www.version2.dk/artikel/stort-wikileaks-laek-cia-har-nyligt-mistet-meste-sit-cyberarsenal-1074212 Whistleblower-tjenesten Wikileaks har netop frigivet dokumenter, der beskriver omfattende cyberaktiviteter under CIA.

HIV-lægemiddel abacavir kan give allergi

Computer models could allow researchers to better understand, predict adverse drug reactionsComputer model shows what happens at the molecular level during severe allergic reactions to abacavir, a common HIV drug

hjernens synapser - enzymet Rab4

When less is essential to keep the brain goingScientists have found that supply of the enzyme Rab4 could make a significant difference in the formation and organization of synapses. Interestingly, a reduced supply of the enzyme could increase the assembly of the synapse in neuronal networks, as well as corresponding brain functions.

hukommelse hos menneske

It's a bird, it's a plane, it's -- a key discovery about human memoryAs Superman flies, people on the ground famously suppose they see a bird, then a plane, and then finally realize it's a superhero. But they haven't just spotted the Man of Steel -- they've experienced the ideal conditions to create a very strong memory of him.

hukommelse og indlæring hos bananfluer - rumlig orientering huskes - biokemisk studie

A backup copy in the central brain: How fruit flies form orientation memoryInsects have a spatial orientation memory that helps them remember the location of their destination if they are briefly deflected from their route. Researchers have examined how this working memory functions on the biochemical level in the case of Drosophila melanogaster.

hukommelsen

A Computational Model of Systems Memory Reconsolidation and ExtinctionIn the mammalian brain newly acquired memories are dependent on the hippocampus for maintenance and recall, but over time these functions are taken over by the neocortex through a process called memory consolidation. Thus, whereas recent memories are likely to be disrupted in the event of hippocampal damage, older memories are less vulnerable. However, if a consolidated memory is reactivated by a

hukommelsen og korttidshukommelse

Brain cells show teamwork in short-term memoryNerve cells in our brains work together in harmony to store and retrieve short-term memory, and are not solo artists as previously thought, new brain research has determined. The research has implications in understanding and perhaps treating patients with dementia or other disorders of the brain and mind.

humlebier afsætter duftspor

Bumblebees Leave 'Smelly Footprints' Behind on FlowersBumblebees mark the flowers they've visited with smelly footprints, and they can tell the difference between odors from family members' feet and those of strangers.

hunde: MRI-scanning kan påvise om hunden er egnet som handicaphjælper

Brain scans of service-dog trainees help sort weaker recruits from the packBrain scans of canine candidates to assist people with disabilities can help predict which dogs will fail a rigorous service training program, a study by finds. The study found that fMRI boosted the ability to identify dogs that would ultimately fail service-dog training to 67 percent, up from about 47 percent without the use of fMRI.

klimaændring og jordbund

Future climate change will affect plants and soil differentlyA new study has found that soil carbon loss is more sensitive to climate change compared to carbon taken up by plants. In drier regions, soil carbon loss decreased but in wetter regions soil carbon loss increased. This could result in a positive feedback to the atmosphere leading to an additional increase of atmospheric CO2 levels.

kobberminedrift med bioaktive stoffer fra bakterier

Copper mining with bioactive substances derived from bacteriaChile is one of the most important suppliers of copper to German industry. Within the framework of the scientific and technological cooperation between the two countries, research is now being pursued into how Chilean copper ores can be extracted in a more environmentally sustainable way. Bioactive substances derived from bacteria may replace or reduce chemicals. A further aim is to increase metal

kræft: billedgenkendelse ved deep learning system hos Google

Googles AI-projekt slår kræftspecialister Google har udviklet et nyt deep learning-billedgenkendelsessystem, der diagnosticerer kræft hurtigere og mere præcist end patologer. https://www.version2.dk/artikel/googles-ai-projekt-slaar-kraeftspecialister-1074157

kræft: leukæmi-behandling

A new way to reset gene expression in cancer cells shows promise for leukemia treatmentScientists have discovered a potential new target for the treatment of leukemia that potentially could augment the activity of BET inhibitors, drugs currently in clinical trials. These therapies act on histones, DNA's packaging proteins, to reset gene regulatory programs that go awry in cancer.

kræft: melanoma-mutation påvist

Key mutation in melanoma suppresses the immune systemResearchers have identified a specific mutation that allows melanoma tumor cells to remain undetected by the immune system.

kræft: tyktarmskræft og nyopdaget DNA-enhancer

Newly discovered DNA enhancers help switch on colorectal cancerGenetic mutations can increase a person's cancer risk, but other gene 'enhancer' elements may also be responsible for disease progression, according to new research. In a breakthrough study, scientists discovered changes in specific regions of DNA, outside of colorectal cancer genes, that 'enhance' harmful gene expression to help grow tumors.

kunstig intelligens frygt

Feeling AI Anxiety? 41% of Americans Fear Getting Replaced by Tech Is AI a job booster or job killer? 41% of Americans fear getting replaced by AI, automation, and digitization, according to a new survey by SelectHub. What does this mean for the future of work? The survey also found that Gen Xers were most likely to be concerned and that certain industries were more worried than others.

kunstig intelligens frygt

Artificial Intelligence Is Not a Threat--YetArtificial intelligence as existential threat --

kvantcomputer-fremskridt

Legacy of brilliant young scientist is a major leap in quantum computingResearchers from the University of Bristol and Université Libre de Bruxelles have theoretically shown how to write programs for random circuitry in quantum computers.

laser til kemianalyser

New design results in compact, highly efficient frequency combA quantum cascade laser (QCL) frequency comb has been developed that is dramatically more efficient than previous iterations. The device could detect many different kinds of chemicals, including industrial emissions, explosives, and chemical warfare agents, say scientists.

livet var allerede kompliceret for 2,33 mia år siden

Study suggests complex life was present on Earth 2.33 billion years agoAn exhaustive genetic analysis of modern-day organisms has revealed new insights into Earth's earliest forms of complex life.

maven: ny viden om syrepumpen

Researchers solve the mystery of the acid pumpResearchers have succeeded in identifying the mechanisms involved in what is known as the acid pump, which at the cellular level pumps acid into the stomach -- in some cases leading to gastric ulcers and gastroesophageal reflux disease.

meteornedslag sker ikke med bestemte tidsmellemrum men tilfældigt

Earth is bombarded at randomDo mass extinctions, like the fall of the dinosaurs, and the formation of large impact craters on Earth occur together at regular intervals? "This question has been under discussion for more than thirty years now," says Matthias Meier from ETH Zurich's Institute of Geochemistry and Petrology. As late as 2015, US researchers indicated that impact craters were formed on Earth around every 26 million

migræne hos børn - behandling

Innovative treatment offers relief to children with frequent migraine headachesA minimally invasive treatment for migraine headaches used for adults is also proving to be a safe and effective treatment for children and teenagers, and only takes minutes for a child to feel relief, according to new research.

mitokondriernes calcium-port varierer fra organ til organ

Controlling energy production by calcium is an organ-specific affairResearchers have shown that the composition of the mitochondrial calcium portal (the protein that regulates when and how much calcium enters) is different depending on the organ in the body, and this difference allows mitochondria to tune their energy output by decoding a pattern of amplitude and/or frequency of calcium oscillations inside a cell. The results could shed light on our basic understa

motion er godt mod ældning

Best anti-ageing exercise is high intensity interval trainingExercise is the best anti-ageing pill, but which routine is most effective? A study reveals that HIIT is better than weight training at rejuvenating cells

myrer og hurtig evolution og klimatilpasning

Species appears to evolve quickly enough to endure city temperaturesUrban acorn ants collected in Cleveland appear to have taken no more than 100 years -- no more than 20 generations -- to evolve and thrive in their heat-trapping city home. The capability suggests the species may be able to cope with other sources of rising temperatures.

nitrogenoptagelse og overførsel til orkide-mykorrhiza - genetisk forskning

Nitrogen uptake between fungi and orchidsOrchids are an example of an experimentally tractable plant that is highly dependent on its relationship with its mycorrhizal fungal partners for nutrient supply. In this recent study, researchers for the first time identified some genetic determinants potentially involved in nitrogen uptake and transfer in orchid mycorrhizas.

næsehorn i fransk zoo dræbt af krybskytter - horn savet af

White rhino killed by poachers at French zooIntruders at a French zoo have shot dead a white rhino and hacked off its horns in a grizzly overnight poaching incident, the police and the zoo said Tuesday.

planters vækst og klimatilpasning

Equation helps to explain plant growthA new biology breakthrough has important implications for plants as they adapt to a warming environment, say

resveratrol bevarer synapser ved muskel/nerve-steder

Resveratrol preserves neuromuscular synapses, muscle fibers in aging miceRed wine, and metformin, a drug often prescribed to fight type 2 diabetes, have many of the neuroprotective benefits of a low-calorie diet and exercise, say researchers.

robotter spørger

System enables people to correct robot mistakes using brain signalsFor robots to do what we want, they need to understand us. Too often, this means having to meet them halfway: teaching them the intricacies of human language, for example, or giving them explicit commands for very specific tasks.

robotter stiller spørgsmål

Algorithm lets confused robots ask questions A new algorithm lets robots ask for clarification when they’re not sure what a person wants. “Fetching objects is an important task that we want collaborative robots to be able to do,” says Stefanie Tellex, professor of computer science at Brown University. “But it’s easy for the robot to make errors, either by misunderstanding what we want, or by being in situations where commands are ambiguous.

robotter styres af hjernen

'Telepathic' Brain Signals Correct Robot’s Mistakes | VideoA new brain-controlled robot uses brain signals from a human operator to correct a bot’s mistakes in real time.

sandheder og løgne

How Facebook, fake news and friends are warping your memory Research on collective recall takes on new importance in a post-fact world. Nature 543 168 doi: 10.1038/543168a

slangegift kan neutraliseres lettere

Snake bite? Chemists figure out how to easily and cheaply halt venom's spreadChemists have developed a way to neutralize deadly snake venom more cheaply and effectively than with traditional anti-venom -- an innovation that could spare millions of people the loss of life or limbs each year.

sommerfuglevingers farver og nanoopbygning

How to Build a Butterfly WingIridescent butterfly wings get their brilliance from structures smaller than a wavelength of light. Scientists are now peeking inside the chrysalis to watch these structural colors form as a living... --

sprog-slægtskab

A Map of Lexical Distances Between Europe's Languages A Finn and a Spaniard walk into a bar...

syntetisk receptor efterligner hvordan celler kommunikerer

World-first synthetic receptor mimics how cells 'talk' to the world around themResearchers have found a way to mimic the way cells in living organisms 'talk' to the world around them by creating a world-first synthetic receptor which can respond to chemical signals just like its natural equivalent.

Trump - og sort humor

Memes Are Helping People of Color Cope With the Trump Era Opinion: Finding amusement in dire circumstances can be empowering and cathartic

Trump og indrejseforbud

ASHG opposes new executive order restricting travel to the USThe American Society of Human Genetics (ASHG) opposes and urges the White House to rescind its recent Executive Order "Protecting the Nation from Foreign Terrorist Entry into the United States," issued March 6.

Trump og indrejseforbud

What Trump's new travel ban means for science Policy reinstates restrictions on immigration from six countries but exempts current visa-holders

Trump og indrejseforbud

Trump’s New Travel Ban Still Sabotages Science and Tech Its prospects for keeping dangerous people out are dubious at best. But would-be immigrants in science and tech will almost certainly be turned away

Trump og klima

Trump set to roll back federal fuel-economy requirementsThe Trump administration is moving to roll back federal fuel-economy requirements that would have forced automakers to increase significantly the efficiency of new cars and trucks, a key part of former President Barack Obama's strategy to combat global warming.

==Trump og milj==ø
Eating Metal: Why Repeal of the Lead Bullet Ban Is Bad for HealthLead bullets are deadly, and not just for the wild game that get shot. That's why a recent decision to overturn a federal ban on the use of lead bullets within U.S. wildlife refuges may backfire regarding the health of both animals and people.

==Trump og milj==ø
Farmers Fight Environmental Regulations Many of America's farmers are successfully fending off environmental regulation, from the Obama administration's Clean Water Rule to a lawsuit in Iowa that's aimed at reducing nitrates in rivers.

==Trump og milj==ø
Deep cuts to environmental research in Trump’s budget proposalUS agencies doing climate research see concerning budget proposal that would eliminate funding for government science on air, energy and water within EPA, and slash satellite and coastal research at NOAA

==Trump og milj==ø
Trump Administration Seeks Big Budget Cuts for Climate ResearchIts targeting of climate science goes beyond the work of NOAA and EPA --

Trump og natur

States Attack U.S. Endangered Species Act RulesEmboldened by Trump election, several states ask White House to roll back habitat protection --

Trump og science

Activists Rush to Save Government Science Data — If They Can Find ItThe Trump administration has begun changing some government websites. A group of concerned citizens has been working to preserve data it sees as politically vulnerable.

vaccine mod diabetes-type1

Forskere vil bremse type 1-diabetes med ny vaccine En indsprøjtning med stoffet GAD-alum direkte ind i immunforsvarets maskinrum, lymfeknuderne, kan måske bremse nedbrydningen af bugspytkirtlens evne til at producere insulin. Overlæge vurderer: »Det ser lovende ud.«

virus: strukktur af P22virus

Detailed chemical structure of P22 virus resolvedScientists at Baylor College of Medicine, the Lawrence Berkeley National Laboratory, Massachusetts Institute of Technology and Purdue University have completed a model of unprecedented near-atomic resolution of the chemical structure of the P22 virus. The study appears in the Proceedings of the National Academy of Sciences.

virus: forhistorisk gammel retrovirus fundet i flagermus

Prehistoric ancestor of leukaemia virus found in batsAncient DNA traces from the family of viruses that cause a rare type of leukaemia have been found in the genomes of bats, filling the "last major gap" in retrovirus fossil record.

zebrastribers årsag - pandas sort og hvid mønster af to årsager

Giant pandas are black and white for 2 reasons Scientists who discovered zebras have black-and-white stripes to repel biting flies have now figured out why giant pandas have the same distinct coloring: camouflage and communication. “Understanding why the giant panda has such striking coloration has been a long-standing problem in biology that has been difficult to tackle because virtually no other mammal has this appearance, making analogies

ældning: aktivering af enzymet sirtuin-6

Small molecules fighting aging-related diseasesFor the first time an international research network has succeeded in producing small molecules able to activate the enzyme sirtuin 6. Furthermore, the scientists were able to reveal the structural basis of such processes. These findings will enable the development of drugs that might support the fight against aging-related diseases.

Tegn abonnement på

BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.

Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.

Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.