Alzheimer – højt blodsukker kan give Alzheimer
Sugar's 'tipping point' link to Alzheimer's disease revealed
For the first time a molecular 'tipping point' has been demonstrated in Alzheimer's, linking high blood sugar with this debilitating disease.
hjerneceller foretrækker en af forældrenes DNA
Playing favorites: Brain cells prefer one parent's gene over the other's
It has long been thought that each copy of our DNA instructions — one inherited from mom and one from dad — is treated the same. A new study shows that it is not uncommon for cells in the brain to preferentially activate one copy over the other. The finding breaks basic tenants of classic genetics and suggests new ways in which genetic mutations might cause brain disorders.
selvkørende bil for selvbygger
Studerende har gjort sin bil selvkørende for 5.000 kroner
Med lidt teknisk snilde kan man gøre sin Honda Civic eller Acura ILX selvkørende. Både software og hardwaredesign er frit tilgængeligt på nettet. Det har en ung amerikaner benyttet sig af.
Guide: Sådan gør du hvis du møder en ulv
Ulve er sky dyr, men hvis du skulle støde på en sjælden nysgerrig en af slagsen, er her anbefalingerne fra eksperterne.
KORT: Ulven vender stærkt tilbage overalt i Europa
Ørken eller Arktis: Den europæiske ulv er fredet, kan leve overalt og vandrer gerne flere tusinde kilometer. Derfor er den i kraftig fremgang.
VX kemisk våben
Killing Kim Jong Nam With VX Nerve Agent Crossed a ‘Red Line’
The apparent assassination of Kim Jong-un's half-brother sets off alarms for chemical weapons experts
antibiotika hjælper cystisk fibrose patienter men de risikerer permanent høretab
Antibiotics used to treat cystic fibrosis increases risk of permanent hearing loss
A powerful class of antibiotics provides life-saving relief for people with cystic fibrosis; however, a new study for the first time reveals the levels at which high cumulative dosages over time significantly increases the risk of permanent hearing loss in these patients. The study suggests physicians who treat patients with cystic fibrosis may be able to consider alternative strategies for treati
antibiotikaresistente bakterier fra Enterobacteriaceae
Antibiotic resistance: A burgeoning problem for kids too
In a new, first-of-its-kind study, researchers have found a 700-percent surge in infections caused by bacteria from the Enterobacteriaceae family resistant to multiple kinds of antibiotics among children in the US. These antibiotic resistant infections are in turn linked to longer hospital stays and potentially greater risk of death.
cholesterol kan regulere aktiviteten af adenosin-receptor og andre hjernemembranproteiner
New role of cholesterol in regulating brain proteins discovered
A study demonstrates that the cholesterol present in cell membranes can interfere with the function of an important brain membrane protein, through a previously unknown mode of interaction. Specifically, cholesterol is capable of regulating the activity of the adenosine receptor, by invading it and accessing the active site. This will allow new ways of interacting with these proteins to be devised
Canada conservationist warns of 'cyber poaching'
Photographers, poachers and eco-tour operators are in the crosshairs of a Canadian conservationist who warns that tracking tags are being hacked and misused to harass and hunt endangered animals.
evolution af blomsterplanter
Where do flowers come from? Shedding light on Darwin’s 'abominable mystery'
The mystery that is the origin of flowering plants has been partially solved thanks to a team of scientists. Their discovery sheds light on a question that much intrigued Darwin: the appearance of a structure as complex as the flower over the course of evolution.
fuglekikkeri fra hjemmet er depressionsforebyggende
Watching birds near your home is good for your mental health
People living in neighbourhoods with more birds, shrubs and trees are less likely to suffer from depression, anxiety and stress, according to research by academics at the University of Exeter, the British Trust for Ornithology and the University of Queensland.
halvleder med et atoms tykkelse
As thin as an atom: A revolutionary semiconductor for electronics
Semiconductors that are as thin as an atom are no longer the stuff of science fiction. A new two-dimensional material could revolutionize electronics, say researchers.
Nano-sized hydrogen storage system increases efficiency
An efficient hydrogen storage system has been developed that could be a boon for hydrogen powered vehicles.
Lidar system – Google/Uber konflikt
Google’s Lawsuit Against Uber Revolves Around Frickin’ Lasers
Google spent years developing its lidar system—and says Uber stole the whole thing
livet på mars – 8 måneder i isolation på vulkan i Hawaii (video)
Life on Mars: Preparing for the Red Planet
Six people are living in isolation for eight months on a volcano in Hawaii as part of a NASA-funded study to simulate a colony on Mars. We chronicle their mission in 360 video.
musik for børn udvikledes for at give forældrene tid
The making of music
A new study suggests that music — and specifically infant-directed song — evolved as a way for parents to signal to children that their needs are being met, while still freeing up parents to perform other tasks, like foraging for food, or caring for other offspring.
Neanderthalgener har stadig indflydelse på om visse gener aktiveres eller ej
Neanderthal DNA contributes to human gene expression
The last Neanderthal died 40,000 years ago, but much of their genome lives on, in bits and pieces, through modern humans. The impact of Neanderthals' genetic contribution has been uncertain. Researchers now report evidence that Neanderthal DNA sequences still influence how genes are turned on or off in modern humans. Neanderthal genes' effects on gene expression likely contribute to traits such as
personer med specielt gen tåler ikke en bestemt Alzheimer medicin Donepezil
Alzheimer's drug prescribed off-label could pose risk for some
Donepezil, a medication that is approved to treat people with Alzheimer's disease, should not be prescribed for people with mild cognitive impairment without a genetic test. Researchers discovered that for people who carry a specific genetic variation — the K-variant of butyrylcholinesterase, or BChE-K — donezpezil could accelerate cognitive decline.
påvisning af hvilke T-killerceller der bedst kan angribe kræftcellerr
Novel 'barcode' tracking of T cells in immunotherapy patients identifies likely cancer-killers
A new discovery makes an important step in identifying which specific T cells within the diverse army of a person's immune system are best suited to fight cancer.
påvisning af RNA-DNA interaktion
Decoding the genome's cryptic language
Bioengineers have developed a new tool to identify RNA-DNA interactions. The tool can provide a full account of all the RNA molecules that interact with a segment of DNA, as well as the locations of all these interactions — in just a single experiment. The research is a step toward identifying new functions and instructions encoded in the genome.
rensningsanlægs bakterier skal DNA-overvåges
DNA-analyser skal optimere drift på renseanlæg
Renseanlæg vrimler med bakterier, der hjælper med den biologiske rensning af spildevandet. Et nyt projekt med deltagelse af bl.a. Aalborg Universitet og Krüger A/S vil udvikle en metode, der gør det lettere at overvåge og styre bakterierne.
sandheder og løgne
The Internet Made ‘Fake News’ a Thing—Then Made It Nothing
As an epithet that defines and dominates the current political moment, "fake news" has become as unstuck from fact—and as unstoppable—as any viral hoax
solsystem mange lysår væk
Seven Earth-sized planets found orbiting single star
Seven planets orbiting a single star have been discovered in a solar system 40 light-years from Earth.
Start Planet-Hunting Right Now – Scientists Release Star Data and Search Tools to Public
Scientists release observation data from 1,600 stars in hopes the public can help find planets that orbit stars outside our solar system.
Large Hadron Collider Disproves the Existence of Ghosts, British Professor Claims
There are many scientific explanations for ghost sightings. This is the first ever to involve CERN.
Yuval Noah Harari – Time's Up – Think Again Podcast #87
Spontaneous talk on surprise topics. Historian Yuval Noah Harari, bestselling author of Sapiens and Homo Deus, on the dizzying ethical questions that surround what's coming next – from superhuman cyborgs to algorithms that know us better than we know ourselves.
New UN climate chief: 'Action on warming unstoppable'
The UN’s new climate chief says she is confident, despite concerns about President Trump's policies.
UK robotics research gets £17.3m pledge
The new funding will be made available for robotics research carried out by British universities.
Island that inspired National Trust finally given to group
The island that inspired the National Trust has finally been gifted to the conservation charity.
Taliban leader urges Afghans to plant more trees
In a statement, Hibatullah Akhundzada says more trees are needed "for the beautification of Earth".
Are Viruses Alive?
Viruses are infectious, tiny and nasty. But are they alive?
Facts About Venus Flytraps
Venus flytraps are carnivorous plants that lure insects and other small animals to their doom.
Explaining The Sizzling Sound Of Meteors
Scientists recently published a paper explaining why some meteors create strange sounds. NPR's Scott Simon talks with researcher Bill Sweatt about what creates this "sizzling" sound.
A Taste For Pork Helped A Deadly Virus Jump To Humans
People were dropping dead in Malaysia, and no one could figure out why their brains were swelling. A young scientist solved the mystery. Then he had to get people to believe him.
When You Love An Old Dog, Managing Care Can Be A Challenge
Aging dogs often need extra medical care. But there comes a time to be realistic about what can and can't be done, veterinarians say. The pet's comfort is paramount.
Dentists Work To Ease Patients' Pain With Fewer Opioids
After minor surgeries, many dentists used to reflexively prescribe quick-acting opioids to relieve a patient's pain. Now they're learning to counsel patients about better, less addictive alternatives.
How to fix a leaky faucet
DIY Those drips could be costing you a fortune Fixing a leaky faucet is one of the simplest and cheapest DIY jobs you can do. But if you put it off, you might get a nasty shock with your next water bill.
Billedtelegrafering og fjernsyn gør store fremskridt
TIDSMASKINEN: Telegrafingeniør F.C. Wamberg fortæller om de lovende forsøg med fjernsyn – et arbejde der kræver beherskelse af adskillige grene af ingeniørvidenskaben.
Fysikere analyserer sig til bedre 3D-print i metal
Porøsitet, krumning eller gal legering. Teknologisk Institut går til kernen af de fysiske udfordringer ved metalprint.
På vej mod deleøkonomi med kWh som valuta
To bofællesskaber i Trekroner vil lave deres eget energimarked. Fysisk er det muligt, men rammebetingelserne mangler.
Spørg Scientariet: Hvorfor var det livsfarligt at røre betonbunkerne indefra under beskydning?
En læser har set et skilt ved en gammel tysk bunker, hvor der står, at ydervæggene ikke må berøres under beskydning. Betonekspert forklarer hvorfor.
Archaeologists hunt for long-lost tomb of Scottish king
The tomb of a medieval king whose murder changed the course of Scottish history in a real-life "Game of Thrones" could be unearthed in a new hi-tech project launched Saturday.
China's TCL brings back physical keyboard in new BlackBerry
Chinese electronics company TCL unveiled Saturday its first BlackBerry-licensed smartphone which brings back the device's signature physical keyboard as it seeks to revive the once mighty brand.
Liquid hydrogen may be way forward for sustainable air travel
With sustainable solutions in mind, a new study looks at the energy efficiency of current modes of transportation.
Computing with biochemical circuits made easy
A software tool and a systematic wet-lab procedure proven in practice are an advance in the design and construction of circuits made of DNA.
Timetree dating in the absence of a fossil record in Asian Horned Frogs
New research has resolved a 195-year old confusion regarding relationships between the species of Asian Horned Frogs, an enigmatic group of frogs often with horn-like projections over their eyes. Using DNA sequences, they discovered many potentially new species in this group previously unknown to science.
Receiving a clot-buster drug before reaching the hospital may reduce stroke disability
A preliminary study shows that giving a clot-busting drug in a mobile stroke unit ambulance may lead to less disability after stroke, compared to when the clot-buster is given after reaching the hospital. The study suggests that ambulances with the personnel and equipment capable of diagnosing ischemic stroke may be worth the extra cost, due to the decrease in patient disability afterward.
Hitching a ride with a predator
A new study is the first to comprehensively examine existing literature to identify broader patterns and suggest ways in which the phenomenon is important for plant populations and seed evolution. Predator-assisted seed dispersal is important to colonize and recolonize plant life in the wild, say researchers.
More day cares near by, more germs? Maybe not, according to whooping cough study
Researchers looking into how a higher density of day care facilities may affect the prevalence of illness in a neighborhood and found that it doesn't really have much of an effect.
Why a common bacterium can produce severe illness
How can the same infection result in dramatically different levels of illness in two different people? A new study identifies two conditions — a genetic immunodeficiency and delayed acquired immunity — that explain why a patient developed a life-threatening disease in response to a common strain of bacterium.
New pop-up strategy inspired by cuts, not folds
Origami-inspired materials use folds in materials to embed powerful functionality. However, all that folding can be pretty labor intensive. Now, researchers are drawing material inspiration from another ancient Japanese paper craft — kirigami.
Attitude Toward Legal Pot Mellows in Parts of Latin America
A survey conducted in nine countries in the region shows attitudes toward the drug are changing in some countries —
How to Support Renewable Energy (and Why You Really Should)
How can you support renewable energy? Plus, why you should —
Will Democracy Survive Big Data and Artificial Intelligence?
We are in the middle of a technological upheaval that will transform the way society is organized. We must make the right decisions now —
A Whole Lot of Magma Is Lurking Under Taipei
A new study suggests a magmatic system as large as 350 cubic kilometers sits below the city. Oh, and India experienced an eruption
Space Photos of the Week: This Is What the Oldest Light in the Universe Looks Like
Space photos of the week, February 19 — 25, 2016
[[@include page="Tegn abonnement"]]