Search Posts

Nyheder2020november04

Tegn abonnement på BioNyt!

Vil du hjælpe med at finde nyheder? DO YOU WANT TO HELP FINDING SCIENCE NEWS?

Phys.org
Large-scale study: Congolese fishermen report decline in fish stocks on Lake Tanganyika
Fishermen working on Lake Tanganyika in eastern Congo experience a lack of safety and want better enforcement of existing regulations. They also report a decline in the lake's fish stocks. These are some of the findings of a large international study led by KU Leuven (Belgium) based on 1018 interviews with stakeholders in the area. The study was published in the Journal of Great Lakes Research.
22h
Double boost for biodiversity in Cape Verde
Lying almost 500 kilometers off the west coast of Africa, the remote archipelago nation of Cape Verde is arguably among the least well-known of the world's marine biodiversity hotspots. All that could be about to change.
22h
Ants are skilled farmers: They have solved a problem that we humans have yet to
Ants have been farmers for tens of millions of years and successfully solved a riddle that we humans have yet to. A new study by researchers at the University of Copenhagen reports that ants are pros at cultivating climate-resilient crops.
22h
New multicomponent reaction frontiers
The synthesis of complex molecules such as drugs, requires a process that sometimes involves several phases that increase its cost and harden the access to the product. Now, a team of the University of Barcelona has designed a new methodological approach that combines multicomponent reactions with domino type processes -continuous transformations on an only compound- to ease the synthesis of high
22h
Being in treatment with statins reduces COVID-19 mortality by 22% to 25%
A research by the Universitat Rovira i Virgili (URV) and Pere Virgili Institut (IISPV) led by Lluís Masana has found that people who are being treated with statins have a 22% to 25% lower risk of dying from COVID-19.
22h
The dangers of collecting drinking water
Fetching drinking water in low and middle income countries can cause serious injury, particularly for women.A new international study published in BMJ Global Health reveals dangers including falls, traffic accidents, animal attacks, and fights, which can result in broken bones, spinal injuries, lacerations, and other physical injuries.The work draws on a survey of 6,291 randomly selected household
22h
Scientists grow carbon nanotube forest much longer than any other
Carbon nanotube (CNT) forests are a solution to scaling up the production of CNTs, which are becoming a staple in many industries. However, even the best catalyst used to grow these forests deteriorates quickly, capping possible forest length at ~2 cm. Now, scientists from Japan have proposed a way to ensure longer catalyst lifetime and higher growth rate, creating a CNT forest that is a record se
22h
Recipe for a storm
Turbulence is an omnipresent phenomenon – and one of the great mysteries of physics. A research team from the University of Oldenburg in Germany has now succeeded in generating realistic storm turbulence in the wind tunnel of the Center for Wind Energy Research (ForWind).
22h
Delirium could be an early marker of COVID-19
Delirium accompanied by fever could be an early symptom of COVID-19. This is the main conclusion drawn by a scientific research review carried out by researchers from the Universitat Oberta de Catalunya (UOC) and published in the open access Journal of Clinical Immunology and Immunotherapy, which highlights the fact that, together with the loss of the senses of taste and smell and headaches that o
22h
Coral larvae movement is paused in reaction to darkness
A new study published in Scientific Reports shows that coral larvae swimming in seawater behave in such a manner so as to temporarily stop swimming due to reduced light, especially blue light. Researchers think that this behavior may play a role in determining where corals settle.
22h
Experts release new management strategies for malignant colorectal polyps
Early identification and removal of cancerous colorectal polyps is critical to preventing the progression of colorectal cancer and improving survival rates. The U.S. Multisociety Task Force on Colorectal Cancer has released new guidance for endoscopists on how to assess colorectal lesions for features associated with cancer, discuss how these factors guide management, and outline when to advise su
22h
AI tool improves breast cancer detection on mammography
Artificial intelligence (AI) can enhance the performance of radiologists in reading breast cancer screening mammograms, according to a new study.
22h
Titta, känna och lukta är vägen till kemi och fysik i förskolan
Kan en fyraåring verkligen ta till sig fysikaliska fenomen och kemiska processer? Svaret är ja. Forskare från Högskolan Kristianstad har följt 150 pedagoger som undervisat i naturvetenskap på förskolan – och fått ta del av magiska stunder då alla bitar plötsligt faller på plats. Fyraåringarna från förskolan hade tagit en gemensam promenad ner till Helge å. Där fick de titta, lukta och känna på va
22h
Scientists identify synthetic mini-antibody to combat COVID-19
By screening hundreds of synthetic mini-antibodies, scientists have identified one that might stop SARS-CoV-2 from infecting human cells.
22h
Ice-binding molecules stop ice growth, act as natural antifreeze
Certain molecules bind tightly to the surface of ice, creating a curved interface that can halt further ice growth. Some insects, plants, and sea-dwelling creatures contain protein molecules of this type that act as natural antifreeze agents, allowing the organisms to withstand freezing temperatures. Scientists report a computational method to model ice binding using a biasing technique to drive t
22h
A DNA-based molecular tagging system that could take the place of printed barcodes
Many people have had the experience of being poked in the back by a plastic tag while trying on clothes in a store. That is just one example of radio frequency identification technology, which has become a mainstay not just in retail but also in manufacturing, logistics, transportation, health care and more. Other tagging systems include the scannable barcode and the QR code.
22h
New protein nanobioreactor designed to improve sustainable bioenergy production
Researchers have unlocked new possibilities for the future development of sustainable, clean bioenergy. The study shows how bacterial protein 'cages' can be reprogrammed as nanoscale bioreactors for hydrogen production.
22h
Author Correction: Light-powered Escherichia coli cell division for chemical production
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19642-8
22h
Big babies, little mothers: Tsetse flies show extreme mothering
The tsetse fly is an exception to the almost universal law of nature that babies are born smaller than their mothers.
22h
Big babies, little mothers: Tsetse flies show extreme mothering
The tsetse fly is an exception to the almost universal law of nature that babies are born smaller than their mothers.
22h
Plants protect themselves against self-induced air pollutants
Trees and other plants release isoprene into the atmosphere. Oxidation processes result in compounds that are harmful to plants. Researchers at the University of Innsbruck have now uncovered a mechanism by which plants protect themselves from these compounds, and have thus discovered an important biogenic source of oxidized volatile organic compounds in the atmosphere.
22h
Lighting the way to selective membrane imaging
Researchers at Kanazawa University monitored the emission of blue-green light from water-soluble tetraphenylethene molecules adsorbed at a phospholipid-adsorbed liquid-liquid interface made to resemble a biomembrane. They found that the process could be reversibly controlled by an externally applied potential (voltage), which opens the possibility for a new class of molecular probes and targeted d
22h
Observing magnon-polarons using a nanopatterned magnetic structure lit by short laser pulses
A team of physicists from Germany, Russia, Ukraine and the United Kingdom has found a new way to observe magnon-polarons by using a nanopatterned magnetic structure lit with short laser pulses. In their paper published in the journal Physical Review B, the group describes extending prior research involving magnon-polarons to develop a better method for observing magnon polarons.
22h
Plastic in the UK: Practical and pervasive—but problematic
Plastics are ubiquitous in modern society, owing to their usefulness, durability and how cheap and easy they are to produce. This makes plastics both a blessing and a curse.
22h
New moon? Scientists claim the Earth's satellite may have a 'dead ringer'
An asteroid hidden behind Mars has been found to closely resemble our moon. Is it a fragment that broke off billions of years ago? Name: (101429) 1998 VF31 (AKA: the Moon's Sister). Age: 4.5bn years, give or take. Continue reading…
22h
Veteran NASA Astronaut Elected to US Senate
Raising Arizona Former NASA astronaut and US Navy veteran Mark Kelly, a Democrat, beat incumbent Martha McSally (R-AR) for a seat in the US Senate during this yesterday's election. If you're keeping score, that makes him the fourth astronaut to be elected to Congress. "I'm confident that when all the votes are counted, we're going to be successful in this mission," Kelly told supporters after dec
22h
First plants appeared on land 460 million years ago
A new study confirms what earth scientists have long suspected: Plants first appeared on land about 460 million years ago, in the middle of a 45-million-year-long geologic period known as the Ordovician. The study describes a series of plant impressions in an Ordovician rock deposit from Douglas Dam in Tennessee. While previous studies have revealed fossil evidence of invertebrate animals in the
22h
New protein nanobioreactor designed to improve sustainable bioenergy production
Researchers have unlocked new possibilities for the future development of sustainable, clean bioenergy. The study shows how bacterial protein 'cages' can be reprogrammed as nanoscale bioreactors for hydrogen production.
22h
Bats can predict the future, researchers discover
They can't tell fortunes and they're useless with the stock market but bats are quite skilled at predicting one thing: where to find dinner. Bats calculate where their prey is headed by building on-the-fly predictive models of target motion from echoes, researchers find. The models are so robust, bats can continue to track prey even when it temporarily vanishes behind echo-blocking obstacles like
22h
Lighting the way to selective membrane imaging
Researchers at Kanazawa University monitored the emission of blue-green light from water-soluble tetraphenylethene molecules adsorbed at a phospholipid-adsorbed liquid-liquid interface made to resemble a biomembrane. They found that the process could be reversibly controlled by an externally applied potential (voltage), which opens the possibility for a new class of molecular probes and targeted d
22h
Simple method to determine if nuts and dairy products contain poison
Scientists at the National Research Nuclear University MEPhI have come up with a simple, inexpensive and environmentally friendly method to determine if food contains toxic aflatoxin-B1. The findings will help ensure food safety. The study results were published in the Journal of Food Composition and Analysis.
22h
Plants protect themselves against self-induced air pollutants
Trees and other plants release isoprene into the atmosphere. Oxidation processes result in compounds that are harmful to plants. Researchers at the University of Innsbruck have now uncovered a mechanism by which plants protect themselves from these compounds, and have thus discovered an important biogenic source of oxidized volatile organic compounds in the atmosphere.
22h
A 4G network on the moon is bad news for radio astronomy
As you drive down the road leading to Jodrell Bank Observatory, a sign asks visitors to turn off their mobile phones, stating that the Lovell telescope is so powerful it could detect a phone signal on Mars.
22h
Model for acid-tolerant yeast helps guide industrial organic acid production
Microbes and other microscopic organisms could serve as sustainable "factories" to create many types of industrial materials because they naturally convert nutrients such as sugars into byproducts. However, creating industrial amounts of organic acids from renewable resources poses a challenge, because not many organisms can grow in highly acidic environments. With the help of gene editing and com
22h
Using quantum properties of light to transmit information
Researchers at the University of Rochester and Cornell University have taken an important step toward developing a communications network that exchanges information across long distances by using photons, mass-less measures of light that are key elements of quantum computing and quantum communications systems.
22h
3.2 Billion Images and 720,000 Hours of Video Are Shared Online Daily. Can You Sort Real from Fake?
Twitter over the weekend "tagged" as manipulated a video showing US Democratic presidential candidate Joe Biden supposedly forgetting which state he's in while addressing a crowd. Biden's "hello Minnesota" greeting contrasted with prominent signage reading "Tampa, Florida" and "Text FL to 30330." The Associated Press' s fact check confirmed the signs were added digitally and the original footage
22h
COVID will likely shrink job market for college grads
The job market for new college graduates is expected to decline for the first time in more than a decade as firms adjust hiring patterns during the COVID-19 economic slowdown, a new study shows. Compared to 63,555 expected hires in the previous Collegiate Employment Research Institute annual Recruiting Trends survey from Michigan State University, more than 1,000 companies responding to this year
22h
Lighting the way to selective membrane imaging
A team of scientists at Kanazawa University have shown how water-soluble tetraphenylethene molecules can become fluorescent when aggregating at a biomembrane-mimetic liquid-liquid interface. This work may lead to new optical molecular probes and smart vesicles for delivering pharmaceuticals directly to cells.
22h
Microbial space travel on a molecular scale
Galactic cosmic and solar UV radiation, extreme vacuum, temperature fluctuations: how can microbes exposed to these challenges in space survive? A team around Space Biochemistry group at the University of Vienna investigated how the space-surviving microbes could physically survive the transfer from one celestial body to another. The results are published in the high-impact journal Microbiome .
22h
Large-scale study: Congolese fishermen report decline in fish stocks on Lake Tanganyika
Fishermen working on Lake Tanganyika in eastern Congo experience a lack of safety and want better enforcement of existing regulations. They also report a decline in the lake's fish stocks. These are some of the findings of a large international study led by KU Leuven (Belgium) based on 1018 interviews with stakeholders in the area. The study was published in the Journal of Great Lakes Research .
22h
How Weight Bias May Affect Dogs and Their Owners
Dog and owner body weight can influence veterinarians' perceptions — Read more on ScientificAmerican.com
22h
How Weight Bias May Affect Dogs and Their Owners
Dog and owner body weight can influence veterinarians' perceptions — Read more on ScientificAmerican.com
22h
Model for acid-tolerant yeast helps guide industrial organic acid production
Microbes and other microscopic organisms could serve as sustainable "factories" to create many types of industrial materials because they naturally convert nutrients such as sugars into byproducts. However, creating industrial amounts of organic acids from renewable resources poses a challenge, because not many organisms can grow in highly acidic environments. With the help of gene editing and com
22h
Revealing the identity of the last unknown protein of autophagy
Dr. Nobuo Noda and Dr. Kazuaki Matoba at the Institute of Microbial Chemistry discovered that Atg9, one of the proteins that function to mediate autophagy, has phospholipid-translocation activity (the lipid scramblase activity) between the two layers of the lipid bilayer and elucidated that the protein's activity brings about autophagosome membrane expansion.
22h
A transportable antiproton trap to unlock the secrets of antimatter
The BASE collaboration at CERN has bagged more than one first in antimatter research. For example, it made the first ever more precise measurement for antimatter than for matter, it kept antimatter stored for a record time of more than a year, and it conducted the first laboratory-based search for an interaction between antimatter and a candidate particle for dark matter called the axion. Now, the
22h
Revealing the identity of the last unknown protein of autophagy
Dr. Nobuo Noda and Dr. Kazuaki Matoba at the Institute of Microbial Chemistry discovered that Atg9, one of the proteins that function to mediate autophagy, has phospholipid-translocation activity (the lipid scramblase activity) between the two layers of the lipid bilayer and elucidated that the protein's activity brings about autophagosome membrane expansion.
22h
Moiré lattices used to induce formation of optical solitons
A team of researchers from China, Spain, Russia and Portugal has developed a way to use Moiré lattices to optically induce and highlight the formation of optical solitons under different geometrical conditions. In their paper published in the journal Nature Photonics, the group describes their work, which involved using photorefractive nonlinear media as a means of localizing laser light into tigh
22h
Science Sound(E)scapes: Amazon Pink River Dolphins
Need a break from politics and the pandemic? You're probably not in the Amazon rain forest right now, but we can take you there in audio. Today, in part one of our three-part audio sound escape, we listen to dolphins hunting among the trees.
22h
Døde datamater leder efter et nyt hjem
PLUS. Efter knap 20 år i Ballerup er Dansk Datahistorisk Forenings lejemål opsagt. Foreningen drømmer nu om mere fokus på dansk it-historie i et nyt hjem til samlingen af dataudstyr.
22h
Dorset mega henge may be 'last hurrah' of stone-age builders
Study of Mount Pleasant site suggests it was constructed over decades, not centuries An intense burst of building work took place in Britain at the end of the neolithic period, possibly as a "final hurrah" by stone-age man and woman as they sensed the approach of fundamental change, research on a prehistoric monument in Dorset has suggested. A study of the Mount Pleasant "mega henge", a sprawling
23h
New multiscale view of the human brain
Researchers from University of Barcelona study how multilayers that form the human brain interact at different resolutions
23h
FAST reveals mystery of fast radio bursts from the universe
The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) has revealed some mystery of the fast radio bursts, according to a study published in Nature on Oct. 28.
23h
Convection-permitting modelling improves simulated precipitation over the Tibetan Plateau
A China-UK research team explains the possible reasons for excessive precipitation over the TP in the mesoscale convection-parameterized models.
23h
Revealing the identity of the last unknown protein of autophagy
Japanese scientists discovered that Atg9, one of the proteins that function to mediate autophagy, has phospholipid-translocation activity (the lipid scramblase activity) between the two layers of the lipid bilayer?and elucidated that the protein's activity brings about autophagosome membrane expansion. The artificial control of autophagy is expected to promote the research and development of treat
23h
Magma 'conveyor belt' fuelled world's longest erupting supervolcanoes
International research led by geologists from Curtin University has found that a volcanic province in the Indian Ocean was the world's most continuously active — erupting for 30 million years — fuelled by a constantly moving 'conveyor belt' of magma.
23h
Unraveling the genetic determinants of small vessel vasculitis
Researchers from the University of Tsukuba have shown that the single-nucleotide variants of TERT and DSP, which promote risk for idiopathic pulmonary fibrosis (IPF), are significantly associated with susceptibility to microscopic polyangiitis and myeloperoxidase-ANCA associated vasculitis. Interestingly, there was no clear link to the severe complication interstitial lung disease (ILD). These fin
23h
UK in talks with Palantir over test-and-trace programme
US tech group's Foundry software might be used to manage sensitive contact tracing data
23h
Klassiska experiment: Så upptäckte de liv på jorden
Galileo var en rymdsond på väg mot Jupiter. För att justera banan och få lite extra fart gjorde den en förbiflygning nära jorden i december 1990. Sondens instrument gav en möjlighet att betrakta jorden utifrån, som om den vore en främmande planet. Astronomerna ville använda sondens mätningar för att se om de kunde hitta tecken på liv, utan att använda sig av några förkunskaper om hur livet på jord
23h
Different outcomes by race/ethnicity among patients with COVID-19 and rheumatic disease
Among U.S. patients with rheumatic disease and COVID-19, racial/ethnic minorities had higher risks of needing to be hospitalized and put on ventilators, according to new research.
23h
Genetic elements involved in heart development identified
Researchers have identified a suite of genes and regulatory elements critical to normal heart development. Their study outlines the importance of 'hub genes' in heart development.
23h
Sleep-deprived mice find cocaine more rewarding
Sleep deprivation may pave the way to cocaine addiction. Too-little sleep can increase the rewarding properties of cocaine, according to new research.
23h
Printing plastic webs to protect the cellphone screens of the future
Follow the unbreakable bouncing phone! A team recently demonstrated that a fabric designed using additive manufacturing absorbs up to 96% of impact energy — all without breaking.
23h
Printing plastic webs to protect the cellphone screens of the future
Follow the unbreakable bouncing phone! A team recently demonstrated that a fabric designed using additive manufacturing absorbs up to 96% of impact energy — all without breaking.
23h
'BAH-code' reader senses gene-silencing tag in cells
Researchers have identified an evolutionarily conserved pathway responsible for 'closing down' gene activity in the mammalian cell. The finding is closely related to the Polycomb pathway defined decades ago by a set of classic genetic experiments carried out in fruit flies. They repor the BAHCC1 protein is critically involved in silencing genes and acts as an integral component of the Polycomb gen
23h
Cell Biologist Angelika Amon Dies at 53
A "larger than life personality," Amon devoted her career to study the cell cycle and aneuploidy. Her research has shaped the field of cancer biology.
23h
cogsci fiction?
/r/happyandhealthy has had a few posts the past few days about psychological benefits of reading fiction. It got me thinking about how I used to read fiction all the time, but it's been years since I've done it. Lately everything has been academic literature for me. A few weeks ago, I reread I, Robot . It didn't impress me as much as it did before I got into cognitive science and programming. Sti
23h
FT Health: The dangers of data
Coping with an 'infodemic', David Heymann on the response to Covid-19, lessons from the Great Plague
23h
100,000-fold enhancement in the nonlinearity of Si
Scientists at Osaka University show how to achieve a very strong nonlinear optical response in silicon nanostructures based on the photothermal effect. This work may lead to entirely optical control of logic gates in computers.
23h
Droner kan blive det næste artilleri i kampen for et bæredygtigt landbrug
Nyt forskningsprojekt med Innovationsfonden i ryggen vil skabe ny metode, der skal sikre, at tørvejorde i landbruget bliver omlagt til klimavenlige naturområder
23h
23h
Supersonic winds, rocky rains forecasted on lava planet
Among the most extreme planets discovered beyond the edges of our solar system are lava planets: fiery hot worlds that circle so close to their host star that some regions are likely oceans of molten lava. According to scientists, the atmosphere and weather cycle of at least one such exoplanet is even stranger, featuring the evaporation and precipitation of rocks, supersonic winds that rage over 5
23h
Lion genetics study uncovers major consequences of habitat fragmentation
Over the course of only a century, humanity has made an observable impact on the genetic diversity of the lion population.
23h
Desalination: Industrial-strength brine, meet your kryptonite
A thin coating of the 2D nanomaterial hexagonal boron nitride is the key ingredient in a cost-effective technology developed by engineers for desalinating industrial-strength brine.
23h
Good news from the River Murray: Two fish species have bounced back from the Millennium Drought in record numbers
This year marks a decade since the end of the Millennium Drought, when flood waters reached the mouth of the River Murray in 2010. For 1,200 days prior, Australia's most iconic river had ceased flowing to the sea, causing populations of fish and other aquatic animals to plummet.
23h
Good news from the River Murray: Two fish species have bounced back from the Millennium Drought in record numbers
This year marks a decade since the end of the Millennium Drought, when flood waters reached the mouth of the River Murray in 2010. For 1,200 days prior, Australia's most iconic river had ceased flowing to the sea, causing populations of fish and other aquatic animals to plummet.
23h
Geologist helps confirm date of earliest land plants on Earth
A new UO study confirms what earth scientists have long suspected: Plants first appeared on land about 460 million years ago, in the middle of a 45-million-year-long geologic period known as the Ordovician.
23h
Antikroppar – superläkemedel på frammarsch
Antikroppar handlar inte bara om att spåra immunitet mot covid-19 och andra smittor, utan används också alltmer för att bota sjukdomar. Forskare i immunteknologi bygger konstgjorda antikroppar med nya, läkande egenskaper. I ett kylskåp i ett av husen på Medicon Village finns en dyrgrip. För en utomstående är den omöjlig att upptäcka eftersom den är ett vanligt provrör med lite genomskinlig vätska
23h
The Race to Study Arctic Waters
In the far north, researchers are scrambling to record baseline environmental data as communities brace for future shipping disasters
23h
The Perils of Moderating Depression on Social Media
If Instagram over-polices mental health content, it risks alienating people who use the platform to build community in healthy ways.
23h
So You're Buying a New Console. Does Cloud Gaming Matter?
Game streaming—not Twitch, but the ability to play games in multiple places—is a new variable in this generation of hardware. Here's what you need to know.
23h
Only 'small chance' Oxford Covid vaccine ready by Christmas
Prof Andrew Pollard tells MPs of need for careful scrutiny of clinical trial results Coronavirus – latest updates See all our coronavirus coverage The head of the Oxford University group developing one of the leading Covid vaccine contenders has played down the chances of vaccinating people by Christmas. "I think there is a small chance of that being possible, but I just don't know," said Prof A
23h
Experts urge review of maths teaching after study shows children lack spatial reasoning skills
Mathematics teaching needs to be rethought because children's spatial reasoning skills are not developed enough, a new study says.
23h
Phones actually pop skewed 'news bubbles'
Contrary to concern about partisan "news bubbles" and "echo chambers," mobile devices expose Americans to a greater variety of news than desktop computers, new research shows. In recent years, we've heard a lot about "news bubbles" and "echo chambers," the idea that to validate their own worldviews, liberals read liberal news and conservatives read conservative news. The proliferation of partisan
23h
When plants attack: parasitic plants use ethylene as a host invasion signal
Researchers from Nara Institute of Science and Technology have found that parasitic plants use the plant hormone ethylene as a signal to invade host plants. Parasitic plants make an organ called a haustorium to attach to and invade hosts, and to obtain water and nutrients. Ethylene is used by parasitic plants to tweak haustorium development and host invasion. This knowledge could be used to develo
23h
Study provides first evidence of a relationship between a bird's gut and its brain
A study of the relationships between cognition and the gut microbiome of captive zebra finches showed that their gut microbiome characteristics were related to performance on a cognitive assay where they learned a novel foraging technique. Researchers also identified potentially critical bacteria that were relatively more abundant in birds that performed better on this assay. This correlation prov
23h
Science Sound(E)scapes: Amazon Pink River Dolphins
Need a break from politics and the pandemic? You're probably not in the Amazon rain forest right now, but we can take you there in audio. Today, in part one of our three-part audio sound… — Read more on ScientificAmerican.com
23h
Freddy Dodge Gets Team Lewis on the Gold | Gold Rush
Stream Full Episodes of Gold Rush: https://go.discovery.com/tv-shows/gold-rush/ Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Join us on Facebook: https://www.facebook.com/GoldRush/ https://www.facebook.com/Discovery Follow us on Twitter: https://twitter.com/Gold_Rush https://twitter.com/Discovery We're on Instagram! https://www.instagram.com/GoldRushTV/ https://www.instagram.com/Disco
23h
Brown carbon 'tarballs' detected in Himalayan atmosphere
Some people refer to the Himalaya-Tibetan Plateau as the "third pole" because the region has the largest reserve of glacial snow and ice outside of the north and south poles. The glaciers, which are extremely sensitive to climate change and human influence, have been retreating over the past decade. Now, researchers reporting in ACS' Environmental Science & Technology Letters have detected light-a
23h
1d
Upper gastrointestinal tract involvement is more prevalent in Korean patients with pediatric Crohn's disease than in European patients
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75938-1
1d
Risk factors for respiratory Aspergillus fumigatus in German Cystic Fibrosis patients and impact on lung function
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75886-w
1d
Phenotypic, genotypic and biochemical changes during pyrethroid resistance selection in Anopheles gambiae mosquitoes
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75865-1
1d
Online quantitative partial discharge monitor based on interferometry
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-76134-x
1d
Abdominal subcutaneous fat quantification in obese patients from limited field-of-view MRI data
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75985-8
1d
An artificial intelligence-based first-line defence against COVID-19: digitally screening citizens for risks via a chatbot
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75912-x
1d
Genetic mutation could worsen heart function in Duchenne muscular dystrophy patients
DALLAS – Nov. 4, 2020 – A mutation in the gene that causes cystic fibrosis may accelerate heart function decline in those with Duchenne muscular dystrophy (DMD), a new study by UT Southwestern researchers suggests. The findings, published online recently in the Journal of the American Heart Association , could help doctors develop new strategies to preserve heart function in this population, poten
1d
Clues to the moon and Mars hide in this mineral
A new remote sensing method for studying the mineral olivine could help scientists understand the early evolution of the moon, Mars, and other planetary bodies. "Olivine is understood to be a major component in the interiors of rocky planets," says Christopher Kremer, a PhD candidate at Brown University and lead author of a new paper on the work. "It's a primary constituent of Earth's mantle, and
1d
Author Correction: Characterization of DvSSJ1 transcripts targeting the smooth septate junction (SSJ) of western corn rootworm (Diabrotica virgifera virgifera)
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75942-5 Author Correction: Characterization of DvSSJ1 transcripts targeting the smooth septate junction (SSJ) of western corn rootworm ( Diabrotica virgifera virgifera )
1d
Synthesis of diamond-like carbon nanofiber film
An international team of researchers, led by Distinguished Professor Rodney S. Ruoff (Department of Chemistry) from the Center for Multidimensional Carbon Materials (CMCM), within the Institute for Basic Science (IBS) at UNIST, has synthesized a film composed of densely packed diamond-like carbon nanofibers. As described in a recent article published in the journal ACS Nano, the researchers noted
1d
Brown carbon 'tarballs' detected in Himalayan atmosphere
Some people refer to the Himalaya-Tibetan Plateau as the "third pole" because the region has the largest reserve of glacial snow and ice outside of the north and south poles. The glaciers, which are extremely sensitive to climate change and human influence, have been retreating over the past decade. Now, researchers reporting in ACS' Environmental Science & Technology Letters have detected light-a
1d
Philae's landing, frequent flyers of research and animal COVID
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03083-w The latest science news, in brief.
1d
A deep-dive into ignorance, the man behind the Rubik's Cube, and a controversial theory of life: Books in brief
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03062-1 Andrew Robinson reviews five of the week's best science picks.
1d
Dreaming in 4n Londons
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03030-9 A familial bond.
1d
Get Africa's Great Green Wall back on track
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03080-z A plan to green 7,000 kilometres of Africa's drylands is struggling to take off. Researchers must help.
1d
Four ways to fight science-funding cuts across Europe
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03121-7 Junior researchers need to engage with policymakers, institutions, funders and media outlets to argue against planned budget cut-backs, warn Brian Cahill and Marco Masia.
1d
Are infections seeding some cases of Alzheimer's disease?
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03084-9 A fringe theory links microbes in the brain with the onset of dementia. Now, researchers are taking it seriously.
1d
Convection-permitting modelling improves simulated precipitation over Tibetan Plateau
The Tibetan Plateau (TP) is the highest and most extensive highland in the world. The thermal and mechanical forces of the TP play an essential role in influencing the global climate, and precipitation is one of its most important water cycle components.
1d
3D print experts discover how to make tomorrow's technology using ink-jet printed graphene
Researchers have cracked the conundrum of how to use inks to 3D-print novel electronic devices with useful properties, such as an ability to convert light into electricity.
1d
Astronauts and explorers on Mars could eat lab-grown steaks
Growing meat without the need to grow a whole animal has been the dream of agriculturalists and foodies everywhere for decades. More and more companies are jumping on the bandwagon to recreate the experience of eating meat without the downsides so often associated with its creation. One of those companies is Aleph Farms, based in Israel, which just announced its newest program—Aleph Zero, an effor
1d
How will Starlink's packet routing work?
SpaceX's Starlink satellite cluster has been receiving much headline space recently as it continues adding satellites at a breathtaking pace. Much of this news coverage has focused on how it's impacting amateur skygazers and how it could benefit people in far-flung regions. But technical details do matter, and over on Casey Handmer's blog, there was a recent discussion of one of the most important
1d
The lasting effects of pollution from the Kabwe mine
Kabwe, Zambia, has a long history of lead and zinc mining, centered around the now-closed Broken Hill Mine. Due to the mine, the city is also one of the most polluted places on Earth; even though the mine has closed, artisanal/small-scale mining continues, leading to the expansion of the polluted area.
1d
Magma 'conveyor belt' fuelled world's longest erupting supervolcanoes
International research led by geologists from Curtin University has found that a volcanic province in the Indian Ocean was the world's most continuously active—erupting for 30 million years—fuelled by a constantly moving conveyor belt of magma.
1d
High thermoelectric performance achieved in P-type alloys
Recently, scientists from the Institute of Solid State Physics, along with their collaborators from the Southern University of Science and Technology (SUSTech), reported high thermoelectric performance of p-type Bi0.4Sb1.6Te3 (BST), which was achieved through the scattering engineering strategy.
1d
Atmospheric nitrous acid chemistry reveals significantly underestimated oxidation capacity in North China
Atmospheric nitrous acid (HONO) is an important source of tropospheric hydroxyl radicals (OH). During daytime, sunlight turns HONO into hydroxyl radicals. This process may make up as high as 60% of the total tropospheric hydroxyl radicals, providing the essential atmospheric oxidation capacity driving the formation of secondary aerosol and the occurrence of regional haze pollution.
1d
NASA contacts Voyager 2 using upgraded Deep Space Network dish
On Oct. 29, mission operators sent a series of commands to NASA's Voyager 2 spacecraft for the first time since mid-March. The spacecraft has been flying solo while the 70-meter-wide (230-foot-wide) radio antenna used to talk to it has been offline for repairs and upgrades. Voyager 2 returned a signal confirming it had received the "call" and executed the commands without issue.
1d
Purple crowned fairy wren holds the key to immune function
A study led by Monash scientists has found the iconic Purple-crowned fairy-wren may hold the key to better understanding immune function.
1d
Scientists find harmful chemicals in household dust
Since the 1970s, chemicals called brominated flame retardants (BFRs) have been added to a host of consumer and household products, ranging from electronics and mattresses to upholstery and carpets. While they were intended to improve fire safety, one form—polybrominated diphenyl ethers, or PBDEs—has proved harmful to human health, specifically our hormonal systems.
1d
Germany land motion mapped
Tiny shifts in the land surface across the whole of Germany have been mapped for the first time, with the help of the Copernicus Sentinel-1 radar mission.
1d
Manipulating chain-walking in olefins using earth-abundant iron-based catalysts
NUS chemists have discovered a way of controlling the position of carbon-carbon double bonds (C=C) in olefin isomerisation using sustainable iron-based catalysis for potential applications in organic synthesis.
1d
The OnePlus 8T Is a Great Phone—but It's No Bargain
This Android phone is great in many ways, but it's not the best choice for value.
1d
The Xenobot Future Is Coming—Start Planning Now
We're on the cusp of being able to program biological systems like we program computers. That raises some thorny questions.
1d
Purple crowned fairy wren holds the key to immune function
A study led by Monash scientists has found the iconic Purple-crowned fairy-wren may hold the key to better understanding immune function.
1d
Chris Whitty decries Great Barrington plan to let Covid run wild
England's chief medical officer says proposal is dangerously flawed and impractical Coronavirus – latest updates See all our coronavirus coverage A high-profile proposal to avoid lockdown by letting the coronavirus run wild in the young and healthy while shielding the most vulnerable is dangerously flawed and operationally impractical, according to England's chief medical officer. Prof Chris Whit
1d
To Understand Gravity, Toss a Hard Drive into a Black Hole
We probably think we know gravity pretty well. After all, we have more conscious experience with this fundamental force than with any of the others (electromagnetism and the weak and strong nuclear… — Read more on ScientificAmerican.com
1d
Spore's the pity: how Fantastic Fungi flags up man's abuse of nature
The team behind a new documentary full of incredible footage of the secret life of mushrooms explain how fungi could help us stave off future pandemics Watching the anemone stinkhorn sprout from the soil is a wondrous – and terrifying – thing. Emerging from a pod that looks like a truffle, the mushroom unfurls half a dozen arms, all a throbbing scarlet, like a collection of tongues. Each of these
1d
Why is Gravity Different?
We probably think we know gravity pretty well. After all, we have more conscious experience with this fundamental force than with any of the others (electromagnetism and the weak and strong nuclear forces). But even though physicists have been studying gravity for hundreds of years, it remains a source of mystery. In our video Why Is Gravity Different? We explore why this force is so perplexing a
1d
PLO halverer sin prognose for lægemangel i 2023
Flere ansatte læger i almen praksis og en nedskrivning af befolkningstilvæksten hos Danmarks Statistik er ifølge PLO de primære årsager til, at organisationen nu halverer sin prognose for lægemangel i 2023.
1d
Svensk Black Friday – "planerad" spontanshopping
Var fjärde svensk konsument ser fram emot Black Friday. Samtidigt vet vi att mycket av försäljningen runt Black Friday inte är planerad utan drivs av den annonsering som sker i samband med "högtidsdagen", säger Johan Anselmsson, professor i marknadsföring. Den svenska studien genomfördes i slutet av oktober och bygger på en webbaserad enkät, genomförd av Ekonomihögskolan vid Lunds universitet och
1d
Scientists improve a land surface model to better simulate the carbon-nitrogen flux
Along with Europe and North America, East Asia has in the past few decades become one of the three largest nitrogen deposition centers in the world. This can lead to considerable impacts on the structure and function of ecosystems; for instance, excessive nitrogen is thought to be one of the drivers of biodiversity change across the globe; and nitrogen deposition can also cause acidification of so
1d
Scientists manipulate the properties of quantum dots
Scientists at the National Research Nuclear University MEPhI (MEPhI) have demonstrated an increase in the intensity and emission rate of quantum dots. According to the authors of the study, the development could help to solve one of the key problems in creating a quantum computer and elevate biomedical monitoring to a new level. The research results were published in Optics Express.
1d
Scientists improve a land surface model to better simulate the carbon-nitrogen flux
Along with Europe and North America, East Asia has in the past few decades become one of the three largest nitrogen deposition centers in the world. This can lead to considerable impacts on the structure and function of ecosystems; for instance, excessive nitrogen is thought to be one of the drivers of biodiversity change across the globe; and nitrogen deposition can also cause acidification of so
1d
A material that 'bruises' like skin
Human skin bruises when the tissue and muscle in the area suffer trauma or become damaged due to the application of blunt force. However, when an object suffers an impact, it is necessary to examine every inch of the surface of the material to understand the extent of the damage. An airplane, for example, it is fully inspected to ensure safety. If the areas damaged by a physical impact undergo a c
1d
Nytt hjärta – men oron lever kvar
Varje år får omkring 60 svenskar ett nytt hjärta. Ett år efter transplantationen bedöms risken för komplikationer vara så pass låg att det räcker med uppföljningar en gång om året.
1d
Superspreading Events
Superspreader events seem to play a large role in spreading COVID-19, which gives us a powerful method of reducing spread. The post first appeared on Science-Based Medicine .
1d
Everyone knew that Trump would declare a premature victory. Social platforms still stumbled.
In a move that everyone knew was coming, President Trump announced in a speech at 2:21 a.m. EST this morning that he had won—long before enough votes were in to make that call. "We were getting ready to win this election," he said. "Frankly, we did win the election." He called for the counting of votes to stop and the outcome to be put into the hands of the Supreme Court. Social media companies a
1d
What Is a Super Typhoon, and Why Are They So Dangerous?
Massive storms like Goni, which hit the Philippine islands on Sunday, could be a glimpse of our future.
1d
Gloom descends on England as nation prepares for second lockdown
Some are stockpiling comfort food and others are defiant, but for most it's a feeling of weary resignation Coronavirus – latest updates See all our coronavirus coverage Much has been made of how Covid has deepened divisions in Britain: between the haves and the have-nots, the work-from-homers and the have-to-go-to-workers, the doves and the hawks , England's north and south. But as England approa
1d
Gigantisk isbjerg på vej mod britisk ø truer rigt dyreliv
Et enormt isbjerg på størrelse med et mindre land er omkring 500 kilometer fra øen Syd Georgien i Atlanterhavet, hvor det truer øens rige dyreliv.
1d
The Problem with Honey Bees
They're important for agriculture, but they're not so good for the environment — Read more on ScientificAmerican.com
1d
Softwarefejl førte til for lange corona-isolationer i Storbritannien
Mere end 7,200 borgere har fået forkerte informationer om, hvor lang tid de skulle tilbringe i corona-isolation på grund af en softwarefejl hos de britiske sundhedsmyndigheder.
1d
U.S. Exits Paris Climate Accord after Trump Stalls Global Warming Action for Four Years
State-level efforts and a growing renewables market have mitigated federal emissions policy rollbacks—but Trump's climate impact could be long-lasting — Read more on ScientificAmerican.com
1d
U.S. Exits Paris Climate Accord after Trump Stalls Global Warming Action for Four Years
State-level efforts and a growing renewables market have mitigated federal emissions policy rollbacks—but Trump's climate impact could be long-lasting — Read more on ScientificAmerican.com
1d
Ideal Utopian Vision of the future
In your opinion, What would be your best preferred vision of the future? How does it look like? submitted by /u/opoopo11 [link] [comments]
1d
7 Best Use Cases of Cognitive Automation
submitted by /u/cwadamsmith [link] [comments]
1d
1d
Tunisian Startup 3D Prints Bionic Arms Running on Solar
submitted by /u/Sorin61 [link] [comments]
1d
Meet the zeptosecond, the shortest unit of time ever measured
submitted by /u/Shradha_Singh [link] [comments]
1d
Cosmic Record Holders : Largest Objects in the Universe
submitted by /u/wonderofspace [link] [comments]
1d
Geologists simulate soil conditions to help grow plants on Mars
submitted by /u/fotogneric [link] [comments]
1d
Could NZ's geothermal resources solve the world's lithium mining woes?
submitted by /u/Random-Mutant [link] [comments]
1d
1d
MIT Team's Cough Detector Identifies 97% of COVID-19 Cases Even in Asymptomatic People
submitted by /u/Capt_Obviously_Slow [link] [comments]
1d
First restaurant serving cultured chicken opens up to the public
submitted by /u/genericdude999 [link] [comments]
1d
Space mice tests find body protein possibly combats aging: JAXA
submitted by /u/aManOfTheNorth [link] [comments]
1d
1d
Quantum computers are coming. Get ready for everything to change
submitted by /u/stranger_42066669 [link] [comments]
1d
1d
Transparent solar cells could bring a new era of personalized energy
submitted by /u/altmorty [link] [comments]
1d
AI godfather Geoff Hinton: "Deep learning is going to be able to do everything"
submitted by /u/RichyScrapDad99 [link] [comments]
1d
First restaurant serving cultured chicken opens up to the public
submitted by /u/tuiposa [link] [comments]
1d
PayPal Plans A Much Wider Embrace Of Cryptocurrency, Including Venmo Use
submitted by /u/auscrisos [link] [comments]
1d
1d
1d
Pregnant women are at an increased risk of severe COVID-19, but there's no need to panic
Based on earlier studies, researchers surmised that pregnant women could be at an increased risk of developing a worsened case of COVID-19. (Pexels/) A new report published this week by the Centers for Disease Control and Prevention suggests that pregnant women are at an increased risk of developing a severe form of COVID-19 compared to women of the same age group who aren't pregnant. The data pr
1d
Why duplicate publications matter: A retraction notice goes above and beyond
Here's a retraction notice after our own hearts. Brain Research Bulletin, an Elsevier journal, has retracted a 2017 article which duplicated a substantial amount of previously published papers by some of the same authors. But unlike many journals, which merely point out the overlap, BRB explains to readers why the copying matters. The article, "Erythropoietin … Continue reading
1d
Scientists develop method to detect charge traps in organic semiconductors
Scientists at Swansea University have developed a very sensitive method to detect the tiny signatures of so called 'charge traps' in organic semiconductors.
1d
Scientists identify synthetic mini-antibody to combat COVID-19
By screening hundreds of synthetic mini-antibodies called sybodies, a group of scientists has identified one that might stop SARS-CoV-2 from infecting human cells.
1d
99TcO4− removal from legacy defense nuclear waste by an alkaline-stable 2D cationic metal organic framework
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19374-9 Separation of 99TcO4− from nuclear waste at the Savannah River Site is hampered by the extreme conditions. Here, the authors propose a solution by developing an alkaline-resistant metal organic framework material featuring unique recognition sites for selective incorporation of 99TcO4− anions.
1d
State-of-the-art augmented NLP transformer models for direct and single-step retrosynthesis
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19266-y Development of algorithms to predict reactant and reagents given a target molecule is key to accelerate retrosynthesis approaches. Here the authors demonstrate that applying augmentation techniques to the SMILE representation of target data significantly improves the quality of the reaction predictions.
1d
Cysteine oxidation and disulfide formation in the ribosomal exit tunnel
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19372-x As protein synthesis takes place, newly synthesized polypeptide chain passes through the ribosomal exit tunnel, which can accommodate up to 70 residues in the case of a helical peptide. Here the authors show that oxidation of cysteine residues in the nascent chain can occur within the ribosome exit tunnel, w
1d
Distance makes a difference in crystalline photoluminescence
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19377-6 Crystallization-induced photoluminescence weakening in ultrasmall metal nanoparticles is not well understood. Here, the authors study conformational isomers of gold nanoclusters to examine the effect of interparticle distance on this phenomenon, and propose a model of distance-dependent non-radiative excitat
1d
Universal and versatile morphology engineering via hot fluorous solvent soaking for organic bulk heterojunction
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19429-x Morphology control of bulk heterojunction organic solar cells has been a challenge for realising optimal photovoltaic performance. Here, the authors utilise amphiphobic nature and temperature-dependent miscibility of fluorous solvent to promote molecular reorganisation and morphological optimisation.
1d
Type I IFN exacerbates disease in tuberculosis-susceptible mice by inducing neutrophil-mediated lung inflammation and NETosis
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19412-6 GM-CSF is involved in control over M. tuberculosis infection. Here the authors show that GM-CSF reduces type 1 interferon driven neutrophil recruitment, NETosis and bacterial growth in the lungs of infected mice, and provide evidence that this NETosis occurs in infected humans who are not responsive to antib
1d
Sigma-1 receptor chaperones rescue nucleocytoplasmic transport deficit seen in cellular and Drosophila ALS/FTD models
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19396-3 The (G4C2)-RNA hexanucleotide repeat expansion upstream of the start codon of the C9orf72 gene plays a critical role in familial ALS. The authors show that Sig1R, a ligand-regulated molecular chaperone, counteracts the aberrant nucleocytoplasmic distribution of Ran caused by the (G4C2)-RNA repeats.
1d
An ambruticin-sensing complex modulates Myxococcus xanthus development and mediates myxobacterial interspecies communication
Nature Communications, Published online: 04 November 2020; doi:10.1038/s41467-020-19384-7 Starvation induces cell aggregation and formation of spore-containing fruiting bodies in the bacterium Myxococcus xanthus. Here, the authors show that a different myxobacterial species produces a compound that inhibits the development of fruiting bodies in M. xanthus, by affecting the function of histidine k
1d
In Appalachia, a Plan to Save Wild Ginseng
For generations, Appalachians have hunted the woods for wild ginseng — or "sang" — that has long been prized in folk medicine for its purported health benefits. Now, concerns about overharvesting have spurred a fragile alliance of locals, scientists, and government officials to explore forest farming.
1d
Scientists develop method to detect charge traps in organic semiconductors
Scientists at Swansea University have developed a very sensitive method to detect the tiny signatures of so called 'charge traps' in organic semiconductors.
1d
UK coronavirus live: former chief whip joins Tory revolt ahead of Commons vote on English lockdown
Latest updates: Some Tory MPs critical of a lack of engagement with Conservative backbenchers before a Commons vote on England's lockdown UK can expect at least three Covid waves with lockdowns, Mordaunt says Six NHS staff contract Covid after car sharing without wearing masks Coronavirus – latest updates See all our coronavirus coverage 11.17am GMT A reader asks about the Covid blood plasma tria
1d
Ro på: Strømmen i din stikkontakt er stadig temmelig grøn
PLUS. To forskellige og uafhængige opgørelser af CO2-indholdet i dansk strøm skaber uklarhed blandt virksomheder og forbrugere.
1d
The President Confirms the World's Fears
T he world watched today as the president of the United States confirmed his critics'—and American allies'—fears, railing baselessly against election fraud, arguing from his perch in the White House that he had won an election whose result remained in doubt. Donald Trump's remarks signaled a dangerous new episode in the soap opera of his presidency. Waking up to the news that he has claimed victo
1d
Climate change: US formally withdraws from Paris agreement
After a three year wait, the US becomes the first nation to leave the Paris climate pact.
1d
Hurricane Eta lashes Nicaragua with rains, deadly mudslides
Hurricane Eta continues to spin across northern Nicaragua after lashing the country's Caribbean coast for much of Tuesday, isolating already remote communities and setting off deadly landslides in two countries that killed at least three people.
1d
How asymmetrical alliances impact firm performance and risk
Researchers from University of Georgia, University of South Carolina, and University of Arkansas published a new paper in the Journal of Marketing that analyzes how asymmetries in pre-alliance network ties between a firm and its alliance partner affect the focal firm's financial performance and financial performance uncertainty.
1d
Do small gifts to donors increase charity appeal ROI?
Researchers from John Carroll University and University of Kansas published a new paper in the Journal of Marketing that investigates how recipients respond to charities' pre-giving incentives to determine if they are worth the investment.
1d
Lion genetics study uncovers major consequences of habitat fragmentation
Over the course of only a century, humanity has made an observable impact on the genetic diversity of the lion population. That's the conclusion of a recently published study by Drs. Caitlin Curry and James Derr from the Texas A&M University College of Veterinary Medicine & Biomedical Sciences.
1d
Tel Aviv University builds and plans to launch a small satellite into orbit
The TAU-SAT1 nanosatellite, approximately the size of a shoebox, is currently undergoing pre-flight testing at the Japanese space agency JAXA prior to a planned launch by NASA in the first quarter of 2021. TAU-SAT1 was entirely devised, developed, assembled, and tested at Tel Aviv University's Nanosatellite Center, an interdisciplinary endeavor of the University's Iby and Aladar Fleischman Faculty
1d
Leaf-cutter bees as plastic recyclers? Not a good idea, say scientists
Plastic has become ubiquitous in modern life and its accumulation as waste in the environment is sounding warning bells for the health of humans and wildlife. In a recent study, Utah State University scientist Janice Brahney cited alarming amounts of microplastics in the nation's national parks and wilderness areas.
1d
Lion genetics study uncovers major consequences of habitat fragmentation
Over the course of only a century, humanity has made an observable impact on the genetic diversity of the lion population. That's the conclusion of a recently published study by Drs. Caitlin Curry and James Derr from the Texas A&M University College of Veterinary Medicine & Biomedical Sciences.
1d
3-D print experts discover how to make tomorrow's technology using ink-jet printed graphene
The University of Nottingham has cracked the conundrum of how to use inks to 3-D-print novel electronic devices with useful properties, such as an ability to convert light into electricity.
1d
'Helper' ambrosia beetles share reproduction with their mother
Fungus farming is a fascinating symbiosis that has evolved multiple times in social insects: once in ants, once in termites, and several times in weevils (beetles) from the subfamilies Scolytinae and Platypodinae. The behavior of these "ambrosia beetles"—over 3,000 species—is poorly known, because they live inside galleries in wood, making observation hard. Here, a study focuses for the first time
1d
Death from below: the first video of a parasitic wasp attacking caterpillar underwater
A very few species of parasitoid wasps can be considered aquatic. Less than 0.1% of the species we know today have been found to enter the water, while searching for potential hosts or living as endoparasitoids inside of aquatic hosts during their larval stage.
1d
Leaf-cutter bees as plastic recyclers? Not a good idea, say scientists
Plastic has become ubiquitous in modern life and its accumulation as waste in the environment is sounding warning bells for the health of humans and wildlife. In a recent study, Utah State University scientist Janice Brahney cited alarming amounts of microplastics in the nation's national parks and wilderness areas.
1d
'Helper' ambrosia beetles share reproduction with their mother
Fungus farming is a fascinating symbiosis that has evolved multiple times in social insects: once in ants, once in termites, and several times in weevils (beetles) from the subfamilies Scolytinae and Platypodinae. The behavior of these "ambrosia beetles"—over 3,000 species—is poorly known, because they live inside galleries in wood, making observation hard. Here, a study focuses for the first time
1d
Death from below: the first video of a parasitic wasp attacking caterpillar underwater
A very few species of parasitoid wasps can be considered aquatic. Less than 0.1% of the species we know today have been found to enter the water, while searching for potential hosts or living as endoparasitoids inside of aquatic hosts during their larval stage.
1d
Intensive lab experiences and online learning during the COVID-19 pandemic
For students studying ecology and evolution, it's important to experience the processes and concepts they are learning about nature in nature. As a result of the COVID-19 pandemic, however, field-based courses rapidly transitioned to online only delivery. An article published in Ecology and Evolution discusses the potential advantages of pairing an intensive lab experience with an otherwise online
1d
Goby fins have fingertip touch sensitivity
Groping around in your bag for your keys can be a daily ordeal. I'm not going to list the catalogue of junk in my bag, but I can distinguish every article by touch. Our fingertips are exquisitely engineered, deftly detecting the differences between surfaces and shapes, but we are not the only animals that touch objects. 'A whole host of fishes contact the bottom of bodies of water, plants or other
1d
Intensive lab experiences and online learning during the COVID-19 pandemic
For students studying ecology and evolution, it's important to experience the processes and concepts they are learning about nature in nature. As a result of the COVID-19 pandemic, however, field-based courses rapidly transitioned to online only delivery. An article published in Ecology and Evolution discusses the potential advantages of pairing an intensive lab experience with an otherwise online
1d
Goby fins have fingertip touch sensitivity
Groping around in your bag for your keys can be a daily ordeal. I'm not going to list the catalogue of junk in my bag, but I can distinguish every article by touch. Our fingertips are exquisitely engineered, deftly detecting the differences between surfaces and shapes, but we are not the only animals that touch objects. 'A whole host of fishes contact the bottom of bodies of water, plants or other
1d
Enighed om guide til sikker træning for folk med type 1-diabetes
Internationale eksperter er blevet enige om verdens første guide til, hvordan personer med type 1-diabetes kan bruge glukosemonitorering til at lave sikre træningsforløb.
1d
The US has left the Paris climate deal — what's next?
Nature, Published online: 04 November 2020; doi:10.1038/d41586-020-03066-x Other nations are stepping up targets to reduce emissions — but the world will struggle to meet its goals.
1d
Podd: Genvägar till bättre hälsa
I år uppmärksammas gensaxen Crispr med ett nobelpris. I det här poddavsnittet får du möjlighet att på ett enkelt sätt förstå mer om dina gener, hur tekniken fungerar, vilka möjligheter den erbjuder – och vilka frågor den också väcker.
1d
Donald Trump Hasn't 'Already Won' the Election
Despite the president's claims of victory, his reelection bid depends on a huge number of votes that have yet to be counted.
1d
1d
1d
The Nightmare Is Here
Updated at 2:36 a.m. ET on November 4, 2020. The 2020 election has been the most anticipated in generations—and for now the result of the contest between President Donald Trump and former Vice President Joe Biden will have to go on being anticipated a little longer. With most polls closed around the nation, it is clear that Democratic dreams of a quick and decisive Biden victory were just as much
1d
Scientists Just Found The Earliest Evidence of Social Behaviour in Mammals
These critters were hanging out during the dinosaur era!
1d
How asymmetrical alliances impact firm performance and risk
Firms need to assess a potential alliance partner's direct ties and indirect ties because they have significant effects on financial performance and risk.
1d
Plants communicate at a molecular level
Working together with researchers from the University of Tübingen, the University of Tromsø, the UC Davis and the Sainsbury Laboratory in Norwich, biologists from Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) have discovered how tomato plants identify Cuscuta as a parasite. The plant has a protein in its cell walls that is identified as 'foreign' by a receptor in the tomato.
1d
Do small gifts to donors increase charity appeal ROI?
Pre-giving incentives have different effects on different outcomes. The best strategy depends on what the charity wants to achieve.
1d
Death from below: the first video of a parasitic wasp attacking caterpillar underwater
A previously unknown species of Japanese parasitic wasp was observed and filmed to dive underwater to parasitize moth caterpillars. This is the first known case of such behaviour for the subfamily Microgastrinae. The unique video is featured in the original description of the species, named Microgaster godzilla, because its emergence out of the water reminded the scientists of the Japanese iconic
1d
3D print experts discover how to make tomorrow's technology using ink-jet printed graphene
The University of Nottingham has cracked the conundrum of how to use inks to 3D-print novel electronic devices with useful properties, such as an ability to convert light into electricity.
1d
1d
A material that "bruises"like the skin?
Human skin bruises when the tissue and muscle in the area suffer trauma or become damaged due to an application of blunt force. when an object suffers an impact that is expected to damage, If the areas damaged by a physical impact undergo a change in color, just like human skin, it will be easy to distinguish what needs to be repaired.
1d
Intensive lab experiences and online learning during the COVID-19 pandemic
For students studying ecology and evolution, it's important to experience the processes and concepts they are learning about nature in nature. As a result of the COVID-19 pandemic, however, field-based courses rapidly transitioned to online only delivery. An article published in Ecology and Evolution discusses the potential advantages of pairing an intensive lab experience with an otherwise online
1d
New opportunities for detecting osteoporosis
Osteoporosis can be detected through low dose computed tomography (LDCT) imaging tests performed for lung cancer screening or other purposes. A study published in the Journal of Bone and Mineral Research found that such tests can identify large numbers of adults with low bone mineral density.
1d
Do cesarean delivery's effects on birth hormones impact a newborn's neurodevelopment?
Cesarean section delivery and vaginal delivery lead to different hormonal exposures that may affect a newborn's development, according to an article published in the Journal of Neuroendocrinology.
1d
Safety of HPV vaccines in males
A new analysis published in the British Journal of Clinical Pharmacology shows that HPV vaccines are safe and well tolerated in the male population, and the side effects that may occur after immunization are similar in both sexes.
1d
Study examines trends in symptoms experienced at the end of life
A new analysis published in the Journal of the American Geriatrics Society indicates that fewer older adults may be experiencing certain symptoms that can restrict their activity at the end of life.
1d
Vitamin D lessens symptoms of severe eczema in children
Vitamin D supplementation eased the symptoms experienced by children with severe atopic dermatitis, or eczema, in a recent randomized controlled trial published in Pharmacology Research & Perspectives.
1d
Different outcomes by race/ethnicity among patients with COVID-19 and rheumatic disease
Among US patients with rheumatic disease and COVID-19, racial/ethnic minorities had higher risks of needing to be hospitalized and put on ventilators. The findings come from an analysis published in Arthritis & Rheumatology.
1d
"Helper" ambrosia beetles share reproduction with their mother
A new study shows for the first time that Xyleborus affinis beetles are cooperative breeders, where females disperse to found new nests or stay to help their mother raise siblings, while also reproducing themselves. They grow an asexual Raffaella fungus alongside their nest galleries, apparently their only source of food.
1d
Yitzhak Rabin and the Case for Courage
Late at night on November 4, 1995, while leaving a huge rally in Tel Aviv, moments after leading the crowd in singing the "Song of Peace"—"Don't say the day will come; bring the day!"—Prime Minister Yitzhak Rabin was shot by a young Israeli bitterly opposed to the peace process with the Palestinians. Although Rabin and I worked together for less than three years, we built a close working relation
1d
Overlæge: Medicinalindustrien svigter deres ansvar over for CLL-patienter
Når medicin mod kronisk lymfatisk leukæmi skifter fra at være tredjelinjebehandling til førstelinjebehandling, følger prisen ikke med. Det stiller klinikerne i et dilemma, hvor økonomi kan stå i vejen for den bedste behandling.
1d
Kan redde liv: Droner flyver ind over farlige vulkaner for at forudsige udbrud
Dronerne tager prøver af gasser i luften for at se, om lava er på vej.
1d
23-årige Therese har slæbt den norske stat i retten: "Det handler om retten til et trygt liv"
Norges højesteret skal nu beslutte, om staten har brudt grundloven ved at give tilladelse til at lede efter ny olie.
1d
UK spends £1bn on Boris Johnson's rapid coronavirus testing 'moonshot'
Questions remain over accuracy of new 20-minute tests and reliance on overseas suppliers
1d
Wombat's deadly bums: how they use their 'skull-crushing' rumps to fight, play and flirt
Research offers insights into marsupial's rearguard defences and 'brutal' mating rituals Australia is known for its strange and deadly wildlife, with plenty of attention given to venomous snakes and bird-eating spiders. But it seems one terrifying aspect of outback fauna has been thoroughly ignored: the wombat's deadly bum. The rump of the wombat is hard as rock, used for defence, burrowing, bond
1d
The previous experience of every US president since Theodore Roosevelt
What does it take to be president? The United States Constitution only lists three requirements for the job: be at least 35 years old, be a natural born citizen, and live in the United States for at least 14 years. A total of 45 men had held the position so far, and each has taken a very different route to the White House. Beginning in the 20th century, here is a brief summary of the past 20 lead
1d
Terrawatch: dust is speeding up melting of Himalayan snow
Human activities are increasing wind-blown dust, depleting crucial freshwater supply Himalayan snow and ice is diminishing fast. Global heating is certainly playing a significant role, but now a recent study in Nature Climate Change reveals that wind-blown dust is worsening the melting effect. Winter snowfall and spring snowmelt provide more than half of the annual freshwater needs of around 700
1d
Opinion: To stop the next pandemic, we need to unravel the origins of COVID-19 [Medical Sciences]
We find ourselves ten months into one of the most catastrophic global health events of our lifetime and, disturbingly, we still do not know how it began. What's even more troubling is that despite the critical importance of this question, efforts to investigate the origins of the severe acute respiratory…
1d
Election robocalls: what we know and what we don't
Millions of voters across the US received robocalls and texts encouraging them to stay at home on Election Day, in what experts believe were clear attempts at suppressing voter turnout in the closely contested 2020 political races. Employing such tactics to spread disinformation and sow confusion amid elections isn't new, and it's not yet clear whether they were used more this year than in previo
1d
Bekymret efter svindelsag: Sygehus, boligtårne og byggestyrelse skal også have undersøgt betonen
PLUS. Flere bygninger, som Bach Gruppen og BG Beton har været involveret i, bliver kulegravet for betonsjusk.
1d
1d
New species of ancient cynodont, 220 million years old, discovered
"This discovery sheds light on the geography and environment during the early evolution of mammals," Kligman said.
1d
Frog Vocals Lead to Small Preference
The concave-eared torrent frog's unusual ear anatomy lets it hear high-frequency calls, which gives a mating advantage to the littler males that sing soprano.
1d
1d
Follow along as battleground states tally presidential votes
Patience is the name of the game. (Jon Sailer/Unsplash/) >> This post has been updated. This is the best election story you'll ever read. OK, wow, bold statement from the author. It may very well be, but you, the reader, can't determine its quality until you've read it—at least most of it. Reaching a conclusion is a process, and it's why Election Day has begun to drift into the rearview as we cou
1d
Leaf-cutter bees as plastic recyclers? Not a good idea, say scientists
Scientists have noted instances of leaf-cutter bees using plastic waste to construct their nests and one research group suggested such behavior could be an 'ecologically adaptive trait' and beneficial recycling effort. Other scientists say no; such behavior is harmful to the bee's offspring.
1d
A68 iceberg on collision path with South Georgia
If the world's biggest iceberg grounds at South Georgia island, it could devastate local wildlife.
1d
COVID-19 lung damage caused by persistence of 'abnormal cells'
Investigations of deceased COVID-19 patients have shed light on possible lung damage caused by the virus.
1d
Gentoo penguins are four species, not one, say scientists
First analysis combining genetic and physical differences of populations of gentoo penguins indicates they should be treated as four separate species.
1d
Crown-of-thorns eat themselves out of house and home
A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home — a behavior previously undocumented–but only if their neighborhood is stocked with their favorite food: corals. The starfish will consume available Acropora and ultimately eat themselves out of house and home before dispersing in search of new feeding grounds.
1d
Supersonic winds, rocky rains forecasted on lava planet
Among the most extreme planets discovered beyond the edges of our solar system are lava planets: fiery hot worlds that circle so close to their host star that some regions are likely oceans of molten lava. According to scientists, the atmosphere and weather cycle of at least one such exoplanet is even stranger, featuring the evaporation and precipitation of rocks, supersonic winds that rage over 5
1d
The Atlantic Daily: Our Election Night Watch Guide
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox . Shutterstock / Getty / The Atlantic To put the Election Day frenzy aside, this bears repeating: This is not a normal election, and you should prepare yourself accordingly. We don't know when race
1d
New species of ancient cynodont, 220 million years old, discovered
Fossilized jaw bone fragments of a rat-like creature found at the Petrified Forest National Park in Arizona last year by a Virginia Tech College of Science Ph.D. candidate are in fact a newly discovered 220-million-year-old species of cynodont or stem-mammal, a precursor of modern-day mammals.
1d
Supersonic winds, rocky rains forecasted on lava planet
Among the most extreme planets discovered beyond the edges of our solar system are lava planets: fiery hot worlds that circle so close to their host star that some regions are likely oceans of molten lava. According to scientists from McGill University, York University, and the Indian Institute of Science Education, the atmosphere and weather cycle of at least one such exoplanet is even stranger,
1d
Gentoo penguins are four species, not one, say scientists
Gentoo penguins should be reclassified as four separate species, say scientists at the Milner Centre for Evolution at the University of Bath, after analysing the genetic and physical differences between populations around the southern hemisphere.
1d
Crown-of-thorns eat themselves out of house and home
A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home—a behavior previously undocumented—but only if their neighborhood is stocked with their favorite food: corals.
1d
Gentoo penguins are four species, not one, say scientists
Gentoo penguins should be reclassified as four separate species, say scientists at the Milner Centre for Evolution at the University of Bath, after analysing the genetic and physical differences between populations around the southern hemisphere.
1d
Crown-of-thorns eat themselves out of house and home
A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home—a behavior previously undocumented—but only if their neighborhood is stocked with their favorite food: corals.
1d
Frog Vocals Lead to Small Preference
The concave-eared torrent frog's unusual ear anatomy lets it hear high-frequency calls, which gives a mating advantage to the littler males that sing soprano. — Read more on ScientificAmerican.com
1d
Author Correction: Boundary effects of expectation in human pain perception
Scientific Reports, Published online: 04 November 2020; doi:10.1038/s41598-020-75632-2
1d
These Countries Got COVID-19 Under Control. Here's 3 Things They Did Right
"I don't believe we can get to zero transmission in the US."
1d
At Least Election Day Didn't Melt Down
With most polls closed, the worst-case scenarios about ransomware and misinformation meltdowns have seemingly not come to pass.
1d
Too early to declare a general law of social mobility and heritability for education [Letters (Online Only)]
Engzell and Tropf (1) find a positive association between intergenerational mobility and heritability for educational attainment. This implies a "general law" that heritability rises whenever social mobility increases and falls whenever it decreases. There are three reasons this conclusion may be premature. First, the heritability estimates and parent–offspring correlations used…
1d
Reply to Morris: Heritability of education remains associated with social mobility [Letters (Online Only)]
Damien Morris has read our paper (1) and concluded that it suggests a "general law" such that "heritability rises whenever social mobility increases and falls whenever it decreases" (2). Although we are flattered, our own ambition was more modest: to assess the available evidence (3)—mostly from rich, Western democracies—for a…
1d
Rev7 loss alters cisplatin response and increases drug efficacy in chemotherapy-resistant lung cancer [Genetics]
Cisplatin is a standard of care for lung cancer, yet platinum therapy rarely results in substantial tumor regression or a dramatic extension in patient survival. Here, we examined whether targeting Rev7 (also referred to as Mad2B, Mad2L2, and FANCV), a component of the translesion synthesis (TLS) machinery, could potentiate the…
1d
Pheno-RNA, a method to associate genes with a specific phenotype, identifies genes linked to cellular transformation [Genetics]
Cellular transformation is associated with dramatic changes in gene expression, but it is difficult to determine which regulated genes are oncogenically relevant. Here we describe Pheno-RNA, a general approach to identifying candidate genes associated with a specific phenotype. Specifically, we generate a "phenotypic series" by treating a nontransformed breast cell…
1d
Role of inner solvation sheath within salt-solvent complexes in tailoring electrode/electrolyte interphases for lithium metal batteries [Applied Physical Sciences]
Functional electrolyte is the key to stabilize the highly reductive lithium (Li) metal anode and the high-voltage cathode for long-life, high-energy-density rechargeable Li metal batteries (LMBs). However, fundamental mechanisms on the interactions between reactive electrodes and electrolytes are still not well understood. Recently localized high-concentration electrolytes (LHCEs) are emerging as.
1d
Predicting an epidemic trajectory is difficult [Commentaries]
Predicting the trajectory of a novel emerging pathogen is like waking in the middle of the night and finding yourself in motion—but not knowing where you are headed, how fast you are traveling, how far you have come, or even what manner of vehicle conveys you into the darkness. A…
1d
Daily mitochondrial dynamics in cone photoreceptors [Cell Biology]
Cone photoreceptors in the retina are exposed to intense daylight and have higher energy demands in darkness. Cones produce energy using a large cluster of mitochondria. Mitochondria are susceptible to oxidative damage, and healthy mitochondrial populations are maintained by regular turnover. Daily cycles of light exposure and energy consumption suggest…
1d
Mechanically superior matrices promote osteointegration and regeneration of anterior cruciate ligament tissue in rabbits [Applied Biological Sciences]
The gold standard treatment for anterior cruciate ligament (ACL) reconstruction is the use of tendon autografts and allografts. Limiting factors for this treatment include donor site morbidity, potential disease transmission, and variable graft quality. To address these limitations, we previously developed an off-the-shelf alternative, a poly(l-lactic) acid (PLLA) bioengineered ACL…
1d
The NF-{kappa}B/leukemia inhibitory factor/STAT3 signaling pathway in antibody-mediated suppression of Sindbis virus replication in neurons [Microbiology]
Alphaviruses are positive-sense, enveloped RNA viruses that are important causes of viral encephalomyelitis. Sindbis virus (SINV) is the prototype alphavirus and preferentially infects neurons in rodents to induce an encephalomyelitis similar to the human disease. Using a mouse model of SINV infection of the nervous system, many of the immune…
1d
Curtailing FGF19's mitogenicity by suppressing its receptor dimerization ability [Medical Sciences]
As a physiological regulator of bile acid homeostasis, FGF19 is also a potent insulin sensitizer capable of normalizing plasma glucose concentration, improving lipid profile, ameliorating fatty liver disease, and causing weight loss in both diabetic and diet-induced obesity mice. There is therefore a major interest in developing FGF19 as a…
1d
Systematic integrated analysis of genetic and epigenetic variation in diabetic kidney disease [Medical Sciences]
Poor metabolic control and host genetic predisposition are critical for diabetic kidney disease (DKD) development. The epigenome integrates information from sequence variations and metabolic alterations. Here, we performed a genome-wide methylome association analysis in 500 subjects with DKD from the Chronic Renal Insufficiency Cohort for DKD phenotypes, including glycemic control,…
1d
Redox-mediated regulation of an evolutionarily conserved cross-{beta} structure formed by the TDP43 low complexity domain [Biochemistry]
A methionine-rich low complexity (LC) domain is found within a C-terminal region of the TDP43 RNA-binding protein. Self-association of this domain leads to the formation of labile cross-β polymers and liquid-like droplets. Treatment with H2O2 caused phenomena of methionine oxidation and droplet melting that were reversed upon exposure of the…
1d
Government effectiveness and institutions as determinants of tropical cyclone mortality [Social Sciences]
Strong institutions as well as economic development are generally understood to play critical roles in protecting societies from the adverse impacts of natural hazards, such as tropical cyclones. The independent effect of institutions on reducing these risks, however, has not been confirmed empirically in previous global studies. As a storm's…
1d
High-order mutants reveal an essential requirement for peroxidases but not laccases in Casparian strip lignification [Plant Biology]
Lignin has enabled plants to colonize land, grow tall, transport water within their bodies, and protect themselves against various stresses. Consequently, this polyphenolic polymer, impregnating cellulosic plant cell walls, is the second most abundant polymer on Earth. Yet, despite its great physiological, ecological, and economical importance, our knowledge of lignin…
1d
Akt3 induces oxidative stress and DNA damage by activating the NADPH oxidase via phosphorylation of p47phox [Cell Biology]
Akt activation up-regulates the intracellular levels of reactive oxygen species (ROS) by inhibiting ROS scavenging. Of the Akt isoforms, Akt3 has also been shown to up-regulate ROS by promoting mitochondrial biogenesis. Here, we employ a set of isogenic cell lines that express different Akt isoforms, to show that the most…
1d
Protein crowding mediates membrane remodeling in upstream ESCRT-induced formation of intraluminal vesicles [Cell Biology]
As part of the lysosomal degradation pathway, the endosomal sorting complexes required for transport (ESCRT-0 to -III/VPS4) sequester receptors at the endosome and simultaneously deform the membrane to generate intraluminal vesicles (ILVs). Whereas ESCRT-III/VPS4 have an established function in ILV formation, the role of upstream ESCRTs (0 to II) in…
1d
Spatial and temporal diversity of glycome expression in mammalian brain [Biochemistry]
Mammalian brain glycome remains a relatively poorly understood area compared to other large-scale "omics" studies, such as genomics and transcriptomics due to the inherent complexity and heterogeneity of glycan structure and properties. Here, we first performed spatial and temporal analysis of glycome expression patterns in the mammalian brain using a…
1d
Receptor tyrosine kinases activate heterotrimeric G proteins via phosphorylation within the interdomain cleft of G{alpha}i [Biochemistry]
The molecular mechanisms by which receptor tyrosine kinases (RTKs) and heterotrimeric G proteins, two major signaling hubs in eukaryotes, independently relay signals across the plasma membrane have been extensively characterized. How these hubs cross-talk has been a long-standing question, but answers remain elusive. Using linear ion-trap mass spectrometry in combination…
1d
An evolutionarily acquired microRNA shapes development of mammalian cortical projections [Neuroscience]
The corticospinal tract is unique to mammals and the corpus callosum is unique to placental mammals (eutherians). The emergence of these structures is thought to underpin the evolutionary acquisition of complex motor and cognitive skills. Corticospinal motor neurons (CSMN) and callosal projection neurons (CPN) are the archetypal projection neurons of…
1d
Vibrio cholerae adapts to sessile and motile lifestyles by cyclic di-GMP regulation of cell shape [Microbiology]
The cell morphology of rod-shaped bacteria is determined by the rigid net of peptidoglycan forming the cell wall. Alterations to the rod shape, such as the curved rod, occur through manipulating the process of cell wall synthesis. The human pathogen Vibrio cholerae typically exists as a curved rod, but straight…
1d
A biomimetic five-module chimeric antigen receptor (5MCAR) designed to target and eliminate antigen-specific T cells [Immunology and Inflammation]
T cells express clonotypic T cell receptors (TCRs) that recognize peptide antigens in the context of class I or II MHC molecules (pMHCI/II). These receptor modules associate with three signaling modules (CD3γε, δε, and ζζ) and work in concert with a coreceptor module (either CD8 or CD4) to drive T…
1d
Differential attentional control mechanisms by two distinct noradrenergic coeruleo-frontal cortical pathways [Neuroscience]
The attentional control of behavior is a higher-order cognitive function that operates through attention and response inhibition. The locus coeruleus (LC), the main source of norepinephrine in the brain, is considered to be involved in attentional control by modulating the neuronal activity of the prefrontal cortex (PFC). However, evidence for…
1d
Rapid identification of a human antibody with high prophylactic and therapeutic efficacy in three animal models of SARS-CoV-2 infection [Microbiology]
Effective therapies are urgently needed for the SARS-CoV-2/COVID-19 pandemic. We identified panels of fully human monoclonal antibodies (mAbs) from large phage-displayed Fab, scFv, and VH libraries by panning against the receptor binding domain (RBD) of the SARS-CoV-2 spike (S) glycoprotein. A high-affinity Fab was selected from one of the libraries…
1d
CEACAMs serve as toxin-stimulated receptors for enterotoxigenic Escherichia coli [Microbiology]
The enterotoxigenic Escherichia coli (ETEC) are among the most common causes of diarrheal illness and death due to diarrhea among young children in low-/middle-income countries (LMICs). ETEC have also been associated with important sequelae including malnutrition and stunting, placing children at further risk of death from diarrhea and other infections….
1d
{beta}-Catenin signaling dynamics regulate cell fate in differentiating neural stem cells [Cell Biology]
Stem cells undergo differentiation in complex and dynamic environments wherein instructive signals fluctuate on various timescales. Thus, cells must be equipped to properly respond to the timing of signals, for example, to distinguish sustained signaling from transient noise. However, how stem cells respond to dynamic variations in differentiation cues is…
1d
Evidence that coronavirus superspreading is fat-tailed [Applied Mathematics]
Superspreaders, infected individuals who result in an outsized number of secondary cases, are believed to underlie a significant fraction of total SARS-CoV-2 transmission. Here, we combine empirical observations of SARS-CoV and SARS-CoV-2 transmission and extreme value statistics to show that the distribution of secondary cases is consistent with being fat-tailed,…
1d
Neural polarization and routes to depolarization [Commentaries]
Political polarization has intensified in the lead-up to the 2020 US presidential election, with liberal and conservative politicians hurling insults at one another, journalists highlighting ways in which Americans are deeply divided, and parts of the general American public condoning violence if their side does not win the upcoming election….
1d
Comparative roles of charge, {pi}, and hydrophobic interactions in sequence-dependent phase separation of intrinsically disordered proteins [Biophysics and Computational Biology]
Endeavoring toward a transferable, predictive coarse-grained explicit-chain model for biomolecular condensates underlain by liquid–liquid phase separation (LLPS) of proteins, we conducted multiple-chain simulations of the N-terminal intrinsically disordered region (IDR) of DEAD-box helicase Ddx4, as a test case, to assess roles of electrostatic, hydrophobic, cation–π, and aromatic interactions in
1d
Self-organization of cortical areas in the development and evolution of neocortex [Psychological and Cognitive Sciences]
While the mechanisms generating the topographic organization of primary sensory areas in the neocortex are well studied, what generates secondary cortical areas is virtually unknown. Using physical parameters representing primary and secondary visual areas as they vary from monkey to mouse, we derived a network growth model to explore if…
1d
COVID-19 pandemic impacts on global inland fisheries [Environmental Sciences]
The COVID-19 pandemic has led to environmental recovery in some ecosystems from a global "anthropause," yet such evidence for natural resources with extraction or production value (e.g., fisheries) is limited. This brief report provides a data-driven global snapshot of expert-perceived impacts of COVID-19 on inland fisheries. We distributed an online…
1d
Distance metrics for ranked evolutionary trees [Evolution]
Genealogical tree modeling is essential for estimating evolutionary parameters in population genetics and phylogenetics. Recent mathematical results concerning ranked genealogies without leaf labels unlock opportunities in the analysis of evolutionary trees. In particular, comparisons between ranked genealogies facilitate the study of evolutionary processes of different organisms sampled at multip
1d
A missense variant in SLC39A8 confers risk for Crohn's disease by disrupting manganese homeostasis and intestinal barrier integrity [Genetics]
Common genetic variants interact with environmental factors to impact risk of heritable diseases. A notable example of this is a single-nucleotide variant in the Solute Carrier Family 39 Member 8 (SLC39A8) gene encoding the missense variant A391T, which is associated with a variety of traits ranging from Parkinson's disease and…
1d
In situ sprayed NIR-responsive, analgesic black phosphorus-based gel for diabetic ulcer treatment [Applied Biological Sciences]
The treatment of diabetic ulcer (DU) remains a major clinical challenge due to the complex wound-healing milieu that features chronic wounds, impaired angiogenesis, persistent pain, bacterial infection, and exacerbated inflammation. A strategy that effectively targets all these issues has proven elusive. Herein, we use a smart black phosphorus (BP)-based gel…
1d
The role of "spillover" in antibiotic resistance [Microbiology]
Antibiotic use is a key driver of antibiotic resistance. Understanding the quantitative association between antibiotic use and resulting resistance is important for predicting future rates of antibiotic resistance and for designing antibiotic stewardship policy. However, the use–resistance association is complicated by "spillover," in which one population's level of antibiotic use…
1d
Hedgehog pathway activation through nanobody-mediated conformational blockade of the Patched sterol conduit [Biophysics and Computational Biology]
Activation of the Hedgehog pathway may have therapeutic value for improved bone healing, taste receptor cell regeneration, and alleviation of colitis or other conditions. Systemic pathway activation, however, may be detrimental, and agents amenable to tissue targeting for therapeutic application have been lacking. We have developed an agonist, a conformation-specific…
1d
The inhibition of LSD1 via sequestration contributes to tau-mediated neurodegeneration [Neuroscience]
Tauopathies are a class of neurodegenerative diseases associated with pathological tau. Despite many advances in our understanding of these diseases, the direct mechanism through which tau contributes to neurodegeneration remains poorly understood. Previously, our laboratory implicated the histone demethylase LSD1 in tau-induced neurodegeneration by showing that LSD1 localizes to pathological…
1d
Optogenetic regulation of embryo implantation in mice using photoactivatable CRISPR-Cas9 [Medical Sciences]
Embryo implantation is achieved upon successful interaction between a fertilized egg and receptive endometrium and is mediated by spatiotemporal expression of implantation-associated molecules including leukemia inhibitory factor (LIF). Here we demonstrate, in mice, that LIF knockdown via a photoactivatable CRISPR-Cas9 gene editing system and illumination with a light-emitting diode can…
1d
Nipah virus dynamics in bats and implications for spillover to humans [Population Biology]
Nipah virus (NiV) is an emerging bat-borne zoonotic virus that causes near-annual outbreaks of fatal encephalitis in South Asia—one of the most populous regions on Earth. In Bangladesh, infection occurs when people drink date-palm sap contaminated with bat excreta. Outbreaks are sporadic, and the influence of viral dynamics in bats…
1d
Neural control of rapid binocular eye movements: Saccade-vergence burst neurons [Neuroscience]
During normal viewing, we direct our eyes between objects in three-dimensional (3D) space many times a minute. To accurately fixate these objects, which are usually located in different directions and at different distances, we must generate eye movements with appropriate versional and vergence components. These combined saccade-vergence eye movements result…
1d
Evidence for aggregation-independent, PrPC-mediated A{beta} cellular internalization [Biochemistry]
Evidence linking amyloid beta (Aβ) cellular uptake and toxicity has burgeoned, and mechanisms underlying this association are subjects of active research. Two major, interconnected questions are whether Aβ uptake is aggregation-dependent and whether it is sequence-specific. We recently reported that the neuronal uptake of Aβ depends significantly on peptide chirality,…
1d
The evolutionary origin and domestication history of goldfish (Carassius auratus) [Genetics]
Goldfish have been subjected to over 1,000 y of intensive domestication and selective breeding. In this report, we describe a high-quality goldfish genome (2n = 100), anchoring 95.75% of contigs into 50 pseudochromosomes. Comparative genomics enabled us to disentangle the two subgenomes that resulted from an ancient hybridization event. Resequencing…
1d
Correction for Goldstein and Lee, Demographic perspectives on the mortality of COVID-19 and other epidemics [Corrections]
SOCIAL SCIENCES Correction for "Demographic perspectives on the mortality of COVID-19 and other epidemics," by Joshua R. Goldstein and Ronald D. Lee, which was first published August 20, 2020; 10.1073/pnas.2006392117 (Proc. Natl. Acad. Sci. U.S.A. 117, 22035–22041). The authors note that on page 22037, left column, fourth paragraph, second sentence,…
1d
Lagged atmospheric circulation response in the Black Sea region to Greenland Interstadial 10 [Earth, Atmospheric, and Planetary Sciences]
Northern Hemispheric high-latitude climate variations during the last glacial are expected to propagate globally in a complex way. Investigating the evolution of these variations requires a precise synchronization of the considered environmental archives. Aligning the globally common production rate variations of the cosmogenic radionuclide 10Be in different archives provides a…
1d
Geographies of insecure water access and the housing-water nexus in US cities [Sustainability Science]
Safe, reliable, and equitable water access is critical to human health and livelihoods. In the United States, an estimated 471,000 households or 1.1 million individuals lack a piped water connection and 73% of households are located in cities, close to networked supply. In this study, we undertake a nationwide analysis…
1d
Two centuries of monarch butterfly collections reveal contrasting effects of range expansion and migration loss on wing traits [Evolution]
Migratory animals exhibit traits that allow them to exploit seasonally variable habitats. In environments where migration is no longer beneficial, such as oceanic islands, migration-association traits may be selected against or be under relaxed selection. Monarch butterflies are best known for their continent-scale migration in North America but have repeatedly…
1d
Narrative structure of A Song of Ice and Fire creates a fictional world with realistic measures of social complexity [Anthropology]
Network science and data analytics are used to quantify static and dynamic structures in George R. R. Martin's epic novels, A Song of Ice and Fire, works noted for their scale and complexity. By tracking the network of character interactions as the story unfolds, it is found that structural properties…
1d
Echolocating bats accumulate information from acoustic snapshots to predict auditory object motion [Psychological and Cognitive Sciences]
Unlike other predators that use vision as their primary sensory system, bats compute the three-dimensional (3D) position of flying insects from discrete echo snapshots, which raises questions about the strategies they employ to track and intercept erratically moving prey from interrupted sensory information. Here, we devised an ethologically inspired behavioral…
1d
Correction for le Roux et al., Animal body size distribution influences the ratios of nutrients supplied to plants [Corrections]
ECOLOGY Correction for "Animal body size distribution influences the ratios of nutrients supplied to plants," by Elizabeth le Roux, Laura S. van Veenhuisen, Graham I. H. Kerley, and Joris P. G. M. Cromsigt, which was first published August 24, 2020; 10.1073/pnas.2003269117 (Proc. Natl. Acad. Sci. U.S.A. 117, 22256–22263). The authors…
1d
Early life of Neanderthals [Earth, Atmospheric, and Planetary Sciences]
The early onset of weaning in modern humans has been linked to the high nutritional demand of brain development that is intimately connected with infant physiology and growth rate. In Neanderthals, ontogenetic patterns in early life are still debated, with some studies suggesting an accelerated development and others indicating only…
1d
Outdoor air pollution in India is not only an urban problem [Environmental Sciences]
Urban outdoor air pollution in the developing world, mostly due to particulate matter with diameters smaller than 2.5 µm (PM2.5), has been highlighted in recent years. It leads to millions of premature deaths. Outdoor air pollution has also been viewed mostly as an urban problem. We use satellite-derived demarcations to…
1d
The rise of angiosperms pushed conifers to decline during global cooling [Evolution]
Competition among species and entire clades can impact species diversification and extinction, which can shape macroevolutionary patterns. The fossil record shows successive biotic turnovers such that a dominant group is replaced by another. One striking example involves the decline of gymnosperms and the rapid diversification and ecological dominance of angiosperms…
1d
Essential role of the linear ubiquitin chain assembly complex and TAK1 kinase in A20 mutant Hodgkin lymphoma [Medical Sciences]
More than 70% of Epstein–Barr virus (EBV)-negative Hodgkin lymphoma (HL) cases display inactivation of TNFAIP3 (A20), a ubiquitin-editing protein that regulates nonproteolytic protein ubiquitination, indicating the significance of protein ubiquitination in HL pathogenesis. However, the precise mechanistic roles of A20 and the ubiquitination system remain largely unknown in this disease….
1d
Early evidence for mounted horseback riding in northwest China [Anthropology]
Horseback riding was a transformative force in the ancient world, prompting radical shifts in human mobility, warfare, trade, and interaction. In China, domestic horses laid the foundation for trade, communication, and state infrastructure along the ancient Silk Road, while also stimulating key military, social, and political changes in Chinese society….
1d
Mechanical injuries of neurons induce tau mislocalization to dendritic spines and tau-dependent synaptic dysfunction [Engineering]
Chronic traumatic encephalopathy (CTE) is associated with repeated traumatic brain injuries (TBI) and is characterized by cognitive decline and the presence of neurofibrillary tangles (NFTs) of the protein tau in patients' brains. Here we provide direct evidence that cell-scale mechanical deformation can elicit tau abnormalities and synaptic deficits in neurons….
1d
Antibody-mediated activation of the FGFR1/Klotho{beta} complex corrects metabolic dysfunction and alters food preference in obese humans [Medical Sciences]
Fibroblast growth factor 21 (FGF21) controls metabolic organ homeostasis and eating/drinking behavior via FGF receptor 1/Klothoβ (FGFR1/KLB) complexes expressed in adipocytes, pancreatic acinar cells, and the nervous system in mice. Chronic administration of recombinant FGF21 or engineered variants improves metabolic health in rodents, nonhuman primates, and humans; however, the rapid…
1d
Chlorovirus PBCV-1 protein A064R has three of the transferase activities necessary to synthesize its capsid protein N-linked glycans [Biochemistry]
Paramecium bursaria chlorella virus-1 (PBCV-1) is a large double-stranded DNA (dsDNA) virus that infects the unicellular green alga Chlorella variabilis NC64A. Unlike many other viruses, PBCV-1 encodes most, if not all, of the enzymes involved in the synthesis of the glycans attached to its major capsid protein. Importantly, these glycans…
1d
LRRC8 family proteins within lysosomes regulate cellular osmoregulation and enhance cell survival to multiple physiological stresses [Physiology]
LRRC8 family proteins on the plasma membrane play a critical role in cellular osmoregulation by forming volume-regulated anion channels (VRACs) necessary to prevent necrotic cell death. We demonstrate that intracellular LRRC8 proteins acting within lysosomes also play an essential role in cellular osmoregulation. LRRC8 proteins on lysosome membranes generate large…
1d
The evolution of altruism and the serial rediscovery of the role of relatedness [Evolution]
The genetic evolution of altruism (i.e., a behavior resulting in a net reduction of the survival and/or reproduction of an actor to benefit a recipient) once perplexed biologists because it seemed paradoxical in a Darwinian world. More than half a century ago, W. D. Hamilton explained that when interacting individuals…
1d
Forest and woodland replacement patterns following drought-related mortality [Ecology]
Forest vulnerability to drought is expected to increase under anthropogenic climate change, and drought-induced mortality and community dynamics following drought have major ecological and societal impacts. Here, we show that tree mortality concomitant with drought has led to short-term (mean 5 y, range 1 to 23 y after mortality) vegetation-type…
1d
Greigite (Fe3S4) is thermodynamically stable: Implications for its terrestrial and planetary occurrence [Earth, Atmospheric, and Planetary Sciences]
Iron sulfide minerals are widespread on Earth and likely in planetary bodies in and beyond our solar system. Using measured enthalpies of formation for three magnetic iron sulfide phases: bulk and nanophase Fe3S4 spinel (greigite), and its high-pressure monoclinic phase, we show that greigite is a stable phase in the…
1d
TREE1-EIN3-mediated transcriptional repression inhibits shoot growth in response to ethylene [Plant Biology]
Ethylene is an important plant hormone that regulates plant growth, in which the master transcriptionactivator EIN3 (Ethylene Insensitive 3)-mediated transcriptional activation plays vital roles. However, the EIN3-mediated transcriptional repression in ethylene response is unknown. We report here that a Transcriptional Repressor of EIN3-dependent Ethylene-response 1 (TREE1) interacts with EIN3 to.
1d
Correction for Monson et al., Neutral evolution of human enamel-dentine ȷunction morphology [Corrections]
ANTHROPOLOGY Correction for "Neutral evolution of human enamel–dentine junction morphology," by Tesla A. Monson, Diego Fecker, and Marc Scherrer, which was first published October 5, 2020; 10.1073/pnas.2008037117 (Proc. Natl. Acad. Sci. U.S.A. 117, 26183–26189). The authors note that the last sentence of the Acknowledgments should specify the grant was awarded…
1d
Goby fins have fingertip touch sensitivity
Primates are renowned for their delicate sense of touch, but now a series of experiments by scientists from The University of Chicago, USA, published in Journal of Experimental Biology reveal that the fins of round gobies are as touch sensitive as primate fingertips.
1d
Humans have lived on the ISS for 20 years—here are the coolest discoveries we've made
The International Space Station was launched in 1998. It was designed, built and tested by 16 partner nations, including the U.S. (NASA/) Twenty years ago, the Earth stopped being the only place in the universe that humans can call "home." On November 2nd of the year 2000, three men became the first humans to live outside our planet. For 141 days, American William Shepherd and Russians Sergei Kri
1d
Leaf-cutter bees as plastic recyclers? Not a good idea, say scientists
Scientists have noted instances of leaf-cutter bees using plastic waste to construct their nests and one research group suggested such behavior could be an 'ecologically adaptive trait' and beneficial recycling effort. Utah State University scientist Joseph Wilson says no; such behavior is harmful to the bee's offspring.
1d
Four ways Trump has meddled in pandemic science — and why it matters
Nature, Published online: 03 November 2020; doi:10.1038/d41586-020-03035-4 How US President Donald Trump and his administration have silenced scientists, meddled in their reports and ignored their advice.
1d
How to Watch the Election 2020 Results Tonight—and Beyond
The winner of the US presidential election may take days to determine. Here's how to take in the results—and not jump the gun.
1d
U.S. Officially Leaving Paris Climate Agreement
The United States is the only country to back out of its promises to reduce greenhouse gas emissions. America has contributed more cumulative carbon dioxide to the atmosphere than any other nation. (Image credit: George Frey/AFP via Getty Images)
1d
UConn researcher identifies genetic elements involved in heart development
Justin Cotney, assistant professor of genetics and genome sciences in the UConn School of Medicine, has identified a suite of genes and regulatory elements critical to normal heart development.
1d
My Life as a Blue-Haired 'Commie Bitch' in Portland
I dyed my hair mid-lockdown because it looked fun and I was bored. But to the online far-right, I became a social media stereotype.
1d
Author Correction: How machine learning can help select capping layers to suppress perovskite degradation
Nature Communications, Published online: 03 November 2020; doi:10.1038/s41467-020-19655-3
1d
Author Correction: Caspase-8 mediates inflammation and disease in rodent malaria
Nature Communications, Published online: 03 November 2020; doi:10.1038/s41467-020-19620-0
1d
Author Correction: Bacterial nanotubes as a manifestation of cell death
Nature Communications, Published online: 03 November 2020; doi:10.1038/s41467-020-19618-8
1d
Author Correction: Phylogenomic analysis sheds light on the evolutionary pathways towards acoustic communication in Orthoptera
Nature Communications, Published online: 03 November 2020; doi:10.1038/s41467-020-19626-8
1d
1d
'Landmark' study resolves a major mystery of how genes govern human height
Nearly 10,000 common gene variants influence how tall a person becomes
1d
Industrial-strength brine, meet your kryptonite
A thin coating of the 2D nanomaterial hexagonal boron nitride is the key ingredient in a cost-effective technology developed by Rice University engineers for desalinating industrial-strength brine.
1d
Texas A&M lion genetics study uncovers major consequences of habitat fragmentation
Over the course of only a century, humanity has made an observable impact on the genetic diversity of the lion population. That's the conclusion of a recently published study by Drs. Caitlin Curry and James Derr from the Texas A&M University College of Veterinary Medicine & Biomedical Sciences.
1d
Boron nitride coating is key ingredient in hypersaline desalination technology
A thin coating of the 2-D nanomaterial hexagonal boron nitride is the key ingredient in a cost-effective technology developed by Rice University engineers for desalinating industrial-strength brine.
1d
Do vitamins help you fight COVID-19?
A lot of hype surrounds vitamins and minerals for treating or preventing COVID-19, though little evidence exists. Vitamins C and D and zinc may help boost the body's response to the coronavirus, but likely only if you're deficient. Dozens of studies are currently investigating the potential use of these supplements on COVID-19 patients. Misinformation is rampant in regards to the novel coronaviru
1d
Study uncovers subset of COVID-19 patients who recover quickly and sustain antibodies
Researchers examined blood samples and cells from patients who had recovered from mild to moderate COVID-19 and found that while antibodies against the virus declined in most individuals after disease resolution, a subset of patients sustained anti-virus antibody production several months following infection.
1d
Behold the Largest Congregation of Bald Eagles in the United States
Every November, hundreds if not thousands of the birds of prey gather in Haines, Alaska, to feast on salmon
1d
How to fix the movement for fossil fuel divestment
Bankers and environmentalists alike are increasingly calling for capital markets to play a bigger role in the war on carbon. In the absence of a meaningful global price on carbon, however, capital continues to flow freely toward fossil fuels and other carbon-intensive industries. The movement for fossil fuel divestment has been trying since 2012 to reverse this trend. A strong media presence and d
1d
This Winter's Double Whammy of Pandemic Blues and Seasonal Depression
COVID-19 is depressing enough, but mental health experts expect to see a rise in seasonal affective disorder, too. Here's how to cope.
1d
'Hot spots' may improve breast cancer mapping
Using a new technique, researchers have found tiny and previously undetectable "hot spots" of extremely high stiffness inside aggressive and invasive breast cancer tumors. Their findings suggest, for the first time, that only very tiny regions of a tumor need to stiffen for metastasis to take place. Though still in its infancy, the researchers believe that their technique may prove useful in dete
1d
Can mouthwash kill the coronavirus?
Certain oral antiseptics and mouthwashes may offer a way to inactivate human coronavirus, according to a new study. The findings indicate that some of these products might help reduce the viral load, or amount of virus, in the mouth after infection and may help reduce the spread of SARS-CoV-2, the coronavirus that causes COVID-19. Researchers tested several oral and nasopharyngeal rinses in a lab
1d
Coronavirus was circulating in New York by February, research shows
Findings indicate the virus was present weeks before first confirmed case in early March
1d
Vitamin E from palm oil useful in boosting immune response based on studies on liver cells
Palm oil is an economical source of vitamin E, and several studies have shown the beneficial effects on the immune system, which include anti-oxidant and anti-cancer activity as well has cytoprotective actions. Researchers hope that these findings pave the way for easily available remedies for a variety of diseases. The current study is published in Current Pharmaceutical Biotechnology.
1d
How to fix the movement for fossil fuel divestment
Bankers and environmentalists alike are increasingly calling for capital markets to play a bigger role in the war on carbon. In the absence of a meaningful global price on carbon, however, capital continues to flow freely toward fossil fuels and other carbon-intensive industries. The movement for fossil fuel divestment has been trying since 2012 to reverse this trend.
1d
Europe took center-stage in global spread of the coronavirus, says new research
Genome researchers have discovered that it is Europe, not China, which has been the main source of spreading the coronavirus disease around the world.
1d
Iron compound makes water safer to drink
A new technique using ferrate, an iron compound, could improve the safety of drinking water, researchers say. Treating water with chlorine—a process called chlorination—kills germs and bacteria in water, making it safe to drink. Although chlorination effectively cleans water and helps prevent waterborne diseases, it also generates many disinfection byproducts, or DBPs, that can be harmful to huma
1d
Rich states' Covid deals 'may deprive poor of vaccine for years'
Wealthy countries already have agreements for 3.73bn doses, with another 5bn under negotiation, study finds Coronavirus – latest updates See all our coronavirus coverage Governments in predominantly wealthy countries are negotiating to buy nearly 8.8bn doses of prospective Covid-19 vaccines in a "frenzy of deals" that could mean many poor countries would not get access to immunisation until at le
1d
Scenes From New Zealand
On a day when much of the world's attention is focused on the United States, I thought it might be nice to share some images from the other side of the planet—specifically the island country of New Zealand. Gathered below are a collection of photographs from the North Island, the South Island, and a few of the other 600 islands that make up the nation of New Zealand.
1d
Malaria test is as simple as putting on a bandage
A new microneedle patch could offer rapid diagnostic testing for malaria that doesn't require extracting blood. The device draws upon protein biomarkers contained in dermal interstitial fluid, what people generally recognize as the fluid inside blisters but surrounds all of the cells in skin. "It's less painful than getting a splinter. I would say it feels like putting tape on your skin and then
1d
Election results: How Twitter, Facebook plan to block misinformation
Twitter says it will remove or add a warning to tweets that declare election wins before official results are declared, as determined by national media outlets. When Twitter users try to retweet, the company will show them a prompt encouraging them to "quote tweet" (and thereby add their own commentary) instead, a move designed to slow the spread of misinformation. Facebook plans to display elect
1d
Key populations for early COVID-19 immunization in Canada
Canada's National Advisory Committee on Immunization (NACI) recommends vaccinating key populations, such as people at risk of severe illness or death, those at risk of transmitting the virus and essential workers, during the initial rollout of a COVID-19 vaccine in Canada. The preliminary guidance, developed for the Public Health Agency of Canada (PHAC), is published in CMAJ (Canadian Medical Asso
1d
Researchers pioneer more effective way to block malaria transmission in mosquitoes
Employing a strategy known as 'population modification,' which involves using a CRISPR-Cas9 gene drive system to introduce genes preventing parasite transmission into mosquito chromosomes, researchers have made a major advance in the use of genetic technologies to control the transmission of malaria parasites.
1d
Underwater noise affects marine animals' relationships. But to what extent?
Human activity at sea makes a terrible racket. To what extent does this disturb marine animals? Ph.D. candidate Annebelle Kok studied the effect on harbor porpoises, long-finned pilot whales and their prey, and discovered the sheer complexity of the problem.
1d
Underwater noise affects marine animals' relationships. But to what extent?
Human activity at sea makes a terrible racket. To what extent does this disturb marine animals? Ph.D. candidate Annebelle Kok studied the effect on harbor porpoises, long-finned pilot whales and their prey, and discovered the sheer complexity of the problem.
1d
Scientists hail earwax test for checking stress hormone levels
Researchers say cortisol sampling technique could transform diagnostics for people with depression A test that uses earwax to measure levels of the stress hormone cortisol could "transform diagnostics and care for millions of people with depression or stress-related conditions", scientists have said. The researchers believe the test, which can be done at home without clinical supervision, may als
1d
Pests, pathogens and pandemics: Australia's biosecurity needs an overhaul, CSIRO warns
Covid-19 crisis offers 'unique opportunity to make transformational changes' Australia's biosecurity needs a major overhaul within a decade to protect people, environments and industries from a wave of invasive pests, pathogens and future pandemics, a CSIRO report has found. Interceptions of materials that were a biosecurity risk – such as insects, soils and plants – rose by 50% between 2012 and
1d
Will a small, long-shot U.S. company end up producing the best coronavirus vaccine?
Novavax vaccine shows "markedly stronger" responses in early human trials
1d
Don't have a boat? Try bowfishing.
Beka Garris holds a gar shot from the bank. (Courtesy Beka Garris/) This story originally featured on Outdoor Life . To the uninitiated, bowfishing may seem like the latest gear-intensive fad. Its popularity has surged in recent years thanks to TV shows, social media, and the rise of its most popular target: carp. But at its core, bowfishing is a minimalist pursuit that's been around for millenni
1d
Implantable device can monitor and treat heart disease
Researchers reported developing a cardiac patch made from fully rubbery electronics that can be placed directly on the heart to collect electrophysiological activity, temperature, heartbeat and other indicators, all at the same time.
1d
Researchers engineer tiny machines that deliver medicine efficiently
Inspired by a parasitic worm that digs its sharp teeth into its host's intestines, researchers have designed tiny, star-shaped microdevices that can latch onto intestinal mucosa and release drugs into the body.
1d
Poor US pandemic response will reverberate in health care politics for years, health scholars warn
Much has been written about the U.S. coronavirus response. Media accounts frequently turn to experts for their insights—commonly, epidemiologists or physicians. Countless surveys have also queried Americans and individuals from around the world about how the pandemic has affected them and their attitudes and opinions.
1d
Implantable device can monitor and treat heart disease
Researchers reported developing a cardiac patch made from fully rubbery electronics that can be placed directly on the heart to collect electrophysiological activity, temperature, heartbeat and other indicators, all at the same time.
1d
Europe took centre-stage in global spread of the coronavirus, says new research
A collaboration between genome researchers at the University of Huddersfield and Portugal's University of Minho has discovered it is Europe, not China, which has been the main source of spreading the coronavirus disease around the world.
1d
UC researchers pioneer more effective way to block malaria transmission in mosquitoes
Employing a strategy known as 'population modification,' which involves using a CRISPR-Cas9 gene drive system to introduce genes preventing parasite transmission into mosquito chromosomes, University of California researchers have made a major advance in the use of genetic technologies to control the transmission of malaria parasites.
1d
Mapping to predict the distribution of ticks in Switzerland
A comprehensive study by EPFL and Lausanne University Hospital (CHUV) has enabled researchers to map the geographical distribution of ticks in Switzerland for the first time, as well as to determine whether they are carriers of chlamydia. Little is known about these bacteria, but ticks can potentially pass them to humans. The team found that zones conducive to tick proliferation have expanded by 1
1d
Researchers unravel the secrets of how natural stone glows in the dark
Scientists at the University of Turku, Finland, have discovered the origin of the glow in the natural mineral that generates white luminescence in the dark. By studying natural minerals, significant new knowledge can be gained for the development of better synthetic materials.
1d
Almost 4,000 years ago, some tasks were already specialized according to gender
A study of the dental wear of 106 individuals buried in the Castellón Alto archaeological site (Granada, Spain) found that only women used their anterior teeth as tools to make threads and cords
1d
Invisible fungi revealed by their genetic material
How can new life forms that we cannot see be discovered? Using a novel method based on looking for DNA in soil samples, researchers at Uppsala University have revealed the existence of two hitherto unknown, but very common fungus species. They are thought to perform a key function in the ecosystem, but their exact role remains to be clarified. The study is published in the journal IMA Fungus.
1d
Mapping to predict the distribution of ticks in Switzerland
A comprehensive study by EPFL and Lausanne University Hospital (CHUV) has enabled researchers to map the geographical distribution of ticks in Switzerland for the first time, as well as to determine whether they are carriers of chlamydia. Little is known about these bacteria, but ticks can potentially pass them to humans. The team found that zones conducive to tick proliferation have expanded by 1
1d
Invisible fungi revealed by their genetic material
How can new life forms that we cannot see be discovered? Using a novel method based on looking for DNA in soil samples, researchers at Uppsala University have revealed the existence of two hitherto unknown, but very common fungus species. They are thought to perform a key function in the ecosystem, but their exact role remains to be clarified. The study is published in the journal IMA Fungus.
1d
The cement for coral reefs
Coral reefs are hotspots of biodiversity. As they can withstand heavy storms, they offer many species a safe home, and at the same time, they protect densely populated coastal regions as they level out storm-driven waves. However, how can these reefs that are made up of often very fragile coral be so stable? A team of researchers from Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and the
1d
The cement for coral reefs
Coral reefs are hotspots of biodiversity. As they can withstand heavy storms, they offer many species a safe home, and at the same time, they protect densely populated coastal regions as they level out storm-driven waves. However, how can these reefs that are made up of often very fragile coral be so stable? A team of researchers from Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and the
1d
Transparent soil-like substances provide window on soil ecology
By using two different transparent soil substitutes, scientists have shown that soil bacteria rely on fungi to help them survive dry periods, says a study published today ineLife.
1d
Scientists piece together the story of humans and dogs
The earliest dog, not wolf, found so far comes from over 15,000 years ago. A new study tracks the travel and development of dogs since the end of the Ice Age. Insights are derived by comparing ancient canine DNA with ancient human DNA. We know that at some point long ago there were wild wolves who became companions for humans, and eventually evolved into dogs. The oldest verified dog remains, fou
1d
Transparent soil-like substances provide window on soil ecology
By using two different transparent soil substitutes, scientists have shown that soil bacteria rely on fungi to help them survive dry periods, says a study published today ineLife.
1d
The birth of a bacterial tRNA gene
Translation is the process by which genetic information is converted into proteins, the workhorses of the cell. Small molecules called transfer RNAs (tRNAs) play a crucial role in translation; they are the adapter molecules that match codons (the building blocks of genetic information) with amino acids (the building blocks of proteins). Organisms carry many types of tRNAs, each encoded by one or m
1d
The birth of a bacterial tRNA gene
Translation is the process by which genetic information is converted into proteins, the workhorses of the cell. Small molecules called transfer RNAs (tRNAs) play a crucial role in translation; they are the adapter molecules that match codons (the building blocks of genetic information) with amino acids (the building blocks of proteins). Organisms carry many types of tRNAs, each encoded by one or m
1d
Astronauts have conducted nearly 3,000 science experiments aboard the ISS
Nature, Published online: 03 November 2020; doi:10.1038/d41586-020-03085-8 A graphical guide to the research carried out on the International Space Station — and who did it.
1d
Johns Hopkins Researchers engineer tiny machines that deliver medicine efficiently
Inspired by a parasitic worm that digs its sharp teeth into its host's intestines, Johns Hopkins researchers have designed tiny, star-shaped microdevices that can latch onto intestinal mucosa and release drugs into the body.
1d
Scientists identify specific brain region and circuits controlling attention
A new study shows that norepinephrine-producing neurons in the locus coeruleus produce attention focus and impulse control via two distinct connections to prefrontal cortex.
1d
Avoiding inflammatory foods can lower heart disease, stroke risk
Diets high in red and processed meat, refined grains and sugary beverages, which have been associated with increased inflammation in the body, can increase subsequent risk of heart disease and stroke compared to diets filled with anti-inflammatory foods. A separate study assessed the positive effects eating walnuts, an anti-inflammatory food, had on decreasing inflammation and heart disease risk.
1d
New insight into how brain neurons influence choices
By studying animals choosing between two drink options, researchers have discovered that the activity of certain neurons in the brain leads directly to the choice of one option over another. The findings could lead to better understanding of how decision-making goes wrong in conditions such as addiction and depression.
1d
In This Issue [This Week in PNAS]
Multidecadal Atlantic sea surface temperature variability Ice covers South Sawtooth Lake on Ellesmere Island. Surface temperatures in the North Atlantic Ocean have undergone large-scale oscillations, known as the Atlantic multidecadal variability (AMV), during the approximately 160-year instrumental record. This variability has climatic links to regions far beyond the North Atlantic,…
1d
Protective effect of mandatory face masks in the public—relevant variables with likely impact on outcome were not considered [Social Sciences]
Zhang et al. (1) conclude that wearing a face mask in public is the most effective means to prevent transmission. This conclusion is scientifically highly questionable. First, the number of epidemic-curve examples is small; an explanation of how they were chosen is lacking. Second, the evaluation is flawed by not…
1d
Do face masks help? is not the question [Social Sciences]
We read with great interest the study by Zhang et al., which analyzed the trend in the daily number of new confirmed cases and mitigation measures in three COVID-19 epicenters, namely Wuhan, China, Italy, and New York City (NYC) (1). The researchers concluded that social distancing is insufficient per se…
1d
The Kinsey scale is ill-suited to most sexuality research because it does not measure a single construct [Social Sciences]
Jabbour et al. (1) provide evidence that some men are aroused by both men and women. The authors conclude that their findings support the validity of the Kinsey scale (2), opposing concerns raised by Ganna et al. (3). We suggest that the findings from Jabbour et al. do not meaningfully…
1d
Reply to Zietsch and Sidari: Male sexual arousal patterns (and sexual orientation) are partly unidimensional [Social Sciences]
We are grateful to Zietsch and Sidari (1) for their Letter, which has encouraged us to conduct analyses that address the important issue they raise. Zietsch and Sidari use our data (2) to argue that the Kinsey scale does not measure a unidimensional trait. Lower Kinsey scores represent greater attraction…
1d
{beta}-Arrestin2 is increased in liver fibrosis in humans and rodents [Biological Sciences]
Liu et al. (1) elegantly present that β-arrestin2 (β-Arr2) is critical for endothelial nitric oxide synthase (eNOS) activation of liver sinusoidal endothelial cells (LSEC). The authors demonstrate a relationship between decreased β-Arr2 expression in LSEC and decreased intrahepatic eNOS activity and NO formation contributing to the development of portal hypertension,…
1d
Reply to Schierwagen et al.: {beta}-Arrestins in liver disease [Biological Sciences]
We read with interest the Letter by Schierwagen et al. (1), which reports that fibrotic liver injury in rodents and in patients is associated with increased whole liver expression of β-arrestin 2 (β-Arr2), appearing to contrast with our recent report (2) demonstrating that injury induced by bile duct ligation (BDL)…
1d
Another step toward demystifying deep neural networks [Applied Mathematics]
The field of deep learning has positioned itself in the past decade as a prominent and extremely fruitful engineering discipline. This comeback of neural networks in the early 2000s swept the machine learning community, and soon after found itself immersed in practically every scientific, social, and technological front. A growing…
1d
The human quest for discovering mathematical beauty in the arts [Applied Physical Sciences]
In the words of the twentieth-century British mathematician G. H. Hardy, "the human function is to 'discover or observe' mathematics" (1). For centuries, starting from the ancient Greeks, mankind has hunted for beauty and order in arts and in nature. This quest for mathematical beauty has led to the discovery…
1d
Liquid drop of DNA libraries reveals total genome information [Applied Biological Sciences]
Conventional "bulk" PCR often yields inefficient and nonuniform amplification of complex templates in DNA libraries, introducing unwanted biases. Amplification of single DNA molecules encapsulated in a myriad of emulsion droplets (emulsion PCR, ePCR) allows the mitigation of this problem. Different ePCR regimes were experimentally analyzed to identify the most robust…
1d
In vitro evolution of antibody affinity via insertional scanning mutagenesis of an entire antibody variable region [Applied Biological Sciences]
We report a systematic combinatorial exploration of affinity enhancement of antibodies by insertions and deletions (InDels). Transposon-based introduction of InDels via the method TRIAD (transposition-based random insertion and deletion mutagenesis) was used to generate large libraries with random in-frame InDels across the entire single-chain variable fragment gene that were further…
1d
PLA2G6 guards placental trophoblasts against ferroptotic injury [Applied Biological Sciences]
The recently identified ferroptotic cell death is characterized by excessive accumulation of hydroperoxy-arachidonoyl (C20:4)- or adrenoyl (C22:4)- phosphatidylethanolamine (Hp-PE). The selenium-dependent glutathione peroxidase 4 (GPX4) inhibits ferroptosis, converting unstable ferroptotic lipid hydroperoxides to nontoxic lipid alcohols in a tissue-specific manner. While placental oxidative stress
1d
Prediction and prevention of disproportionally dominant agents in complex networks [Applied Physical Sciences]
We develop an early warning system and subsequent optimal intervention policy to avoid the formation of disproportional dominance ("winner takes all," WTA) in growing complex networks. This is modeled as a system of interacting agents, whereby the rate at which an agent establishes connections to others is proportional to its…
1d
Behavior and mechanics of dense microgel suspensions [Applied Physical Sciences]
Suspensions of soft and highly deformable microgels can be concentrated far more than suspensions of hard colloids, leading to their unusual mechanical properties. Microgels can accommodate compression in suspensions in a variety of ways such as interpenetration, deformation, and shrinking. Previous experiments have offered insightful, but somewhat conflicting, accounts of…
1d
Optical signatures of multifold fermions in the chiral topological semimetal CoSi [Applied Physical Sciences]
We report the optical conductivity in high-quality crystals of the chiral topological semimetal CoSi, which hosts exotic quasiparticles known as multifold fermions. We find that the optical response is separated into several distinct regions as a function of frequency, each dominated by different types of quasiparticles. The low-frequency intraband response…
1d
Entropy-controlled cross-linking in linker-mediated vitrimers [Applied Physical Sciences]
Recently developed linker-mediated vitrimers based on metathesis of dioxaborolanes with various commercially available polymers have shown both good processability and outstanding performance, such as mechanical, thermal, and chemical resistance, suggesting new ways of processing cross-linked polymers in industry, of which the design principle remains unknown [M. Röttger et al., Science…
1d
Histone H3.3 G34 mutations promote aberrant PRC2 activity and drive tumor progression [Biochemistry]
A high percentage of pediatric gliomas and bone tumors reportedly harbor missense mutations at glycine 34 in genes encoding histone variant H3.3. We find that these H3.3 G34 mutations directly alter the enhancer chromatin landscape of mesenchymal stem cells by impeding methylation at lysine 36 on histone H3 (H3K36) by…
1d
DOT1L-controlled cell-fate determination and transcription elongation are independent of H3K79 methylation [Biochemistry]
Actively transcribed genes in mammals are decorated by H3K79 methylation, which is correlated with transcription levels and is catalyzed by the histone methyltransferase DOT1L. DOT1L is required for mammalian development, and the inhibition of its catalytic activity has been extensively studied for cancer therapy; however, the mechanisms underlying DOT1L's functions…
1d
Broad distributions of transition-path times are fingerprints of multidimensionality of the underlying free energy landscapes [Biophysics and Computational Biology]
Recent single-molecule experiments have observed transition paths, i.e., brief events where molecules (particularly biomolecules) are caught in the act of surmounting activation barriers. Such measurements offer unprecedented mechanistic insights into the dynamics of biomolecular folding and binding, molecular machines, and biological membrane channels. A key challenge to these studies is…
1d
Phase separation at the nanoscale quantified by dcFCCS [Biophysics and Computational Biology]
Liquid–liquid phase separation, driven by multivalent macromolecular interactions, causes formation of membraneless compartments, which are biomolecular condensates containing concentrated macromolecules. These condensates are essential in diverse cellular processes. Formation and dynamics of micrometer-scale phase-separated condensates are examined routinely. However, limited by commonly used met
1d
Desmosome architecture derived from molecular dynamics simulations and cryo-electron tomography [Biophysics and Computational Biology]
Desmosomes are cell–cell junctions that link tissue cells experiencing intense mechanical stress. Although the structure of the desmosomal cadherins is known, the desmosome architecture—which is essential for mediating numerous functions—remains elusive. Here, we recorded cryo-electron tomograms (cryo-ET) in which individual cadherins can be discerned; they appear variable in shape, spacing,…
1d
Funneled energy landscape unifies principles of protein binding and evolution [Biophysics and Computational Biology]
Most proteins have evolved to spontaneously fold into native structure and specifically bind with their partners for the purpose of fulfilling biological functions. According to Darwin, protein sequences evolve through random mutations, and only the fittest survives. The understanding of how the evolutionary selection sculpts the interaction patterns for both…
1d
Three-dimensional deconvolution processing for STEM cryotomography [Biophysics and Computational Biology]
The complex environment of biological cells and tissues has motivated development of three-dimensional (3D) imaging in both light and electron microscopies. To this end, one of the primary tools in fluorescence microscopy is that of computational deconvolution. Wide-field fluorescence images are often corrupted by haze due to out-of-focus light, i.e.,…
1d
Identify potent SARS-CoV-2 main protease inhibitors via accelerated free energy perturbation-based virtual screening of existing drugs [Biophysics and Computational Biology]
The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a global crisis. There is no therapeutic treatment specific for COVID-19. It is highly desirable to identify potential antiviral agents against SARS-CoV-2 from existing drugs available for other diseases and thus repurpose them for treatment of…
1d
Computationally enhanced quantitative phase microscopy reveals autonomous oscillations in mammalian cell growth [Cell Biology]
The fine balance of growth and division is a fundamental property of the physiology of cells, and one of the least understood. Its study has been thwarted by difficulties in the accurate measurement of cell size and the even greater challenges of measuring growth of a single cell over time….
1d
Macropinocytosis-mediated membrane recycling drives neural crest migration by delivering F-actin to the lamellipodium [Cell Biology]
Individual cell migration requires front-to-back polarity manifested by lamellipodial extension. At present, it remains debated whether and how membrane motility mediates this cell morphological change. To gain insights into these processes, we perform live imaging and molecular perturbation of migrating chick neural crest cells in vivo. Our results reveal an…
1d
Blocking PPAR{gamma} interaction facilitates Nur77 interdiction of fatty acid uptake and suppresses breast cancer progression [Cell Biology]
Nuclear receptor Nur77 participates in multiple metabolic regulations and plays paradoxical roles in tumorigeneses. Herein, we demonstrated that the knockout of Nur77 stimulated mammary tumor development in two mouse models, which would be reversed by a specific reexpression of Nur77 in mammary tissues. Mechanistically, Nur77 interacted and recruited corepressors, the…
1d
Collective cancer cell invasion requires RNA accumulation at the invasive front [Cell Biology]
Localization of RNAs at protrusive regions of cells is important for single-cell migration on two-dimensional surfaces. Protrusion-enriched RNAs encode factors linked to cancer progression, such as the RAB13 GTPase and the NET1 guanine nucleotide exchange factor, and are regulated by the tumor-suppressor protein APC. However, tumor cells in vivo often…
1d
Plasmonic probing of the adhesion strength of single microbial cells [Chemistry]
Probing the binding between a microbe and surface is critical for understanding biofilm formation processes, developing biosensors, and designing biomaterials, but it remains a challenge. Here, we demonstrate a method to measure the interfacial forces of bacteria attached to the surface. We tracked the intrinsic fluctuations of individual bacterial cells…
1d
Strong sequentially bridged MXene sheets [Chemistry]
Titanium carbide (Ti3C2Tx) MXene has great potential for use in aerospace and flexible electronics due to its excellent electrical conductivity and mechanical properties. However, the assembly of MXene nanosheets into macroscopic high-performance nanocomposites is challenging, limiting MXene's practical applications. Here we describe our work fabricating strong and highly conductive MXene…
1d
Mapping glycan-mediated galectin-3 interactions by live cell proximity labeling [Chemistry]
Galectin-3 is a glycan-binding protein (GBP) that binds β-galactoside glycan structures to orchestrate a variety of important biological events, including the activation of hepatic stellate cells and regulation of immune responses. While the requisite glycan epitopes needed to bind galectin-3 have long been elucidated, the cellular glycoproteins that bear these…
1d
Experimentally determined strengths of favorable and unfavorable interactions of amide atoms involved in protein self-assembly in water [Chemistry]
Folding and other protein self-assembly processes are driven by favorable interactions between O, N, and C unified atoms of the polypeptide backbone and side chains. These processes are perturbed by solutes that interact with these atoms differently than water does. Amide NH···O=C hydrogen bonding and various π-system interactions have been…
1d
Unexpected specificity within dynamic transcriptional protein-protein complexes [Chemistry]
A key functional event in eukaryotic gene activation is the formation of dynamic protein–protein interaction networks between transcriptional activators and transcriptional coactivators. Seemingly incongruent with the tight regulation of transcription, many biochemical and biophysical studies suggest that activators use nonspecific hydrophobic and/or electrostatic interactions to bind to coactivat
1d
Overparameterized neural networks implement associative memory [Computer Sciences]
Identifying computational mechanisms for memorization and retrieval of data is a long-standing problem at the intersection of machine learning and neuroscience. Our main finding is that standard overparameterized deep neural networks trained using standard optimization methods implement such a mechanism for real-valued data. We provide empirical evidence that 1) overparameterized…
1d
B3GALT5 knockout alters gycosphingolipid profile and facilitates transition to human naive pluripotency [Developmental Biology]
Conversion of human pluripotent stem cells from primed to naïve state is accompanied by altered transcriptome and methylome, but glycosphingolipid (GSL) profiles in naïve human embryonic stem cells (hESCs) have not been systematically characterized. Here we showed a switch from globo-(SSEA-3, SSEA-4, and Globo H) and lacto-series (fucosyl-Lc4Cer) to neolacto-series…
1d
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y [Earth, Atmospheric, and Planetary Sciences]
Global warming due to anthropogenic factors can be amplified or dampened by natural climate oscillations, especially those involving sea surface temperatures (SSTs) in the North Atlantic which vary on a multidecadal scale (Atlantic multidecadal variability, AMV). Because the instrumental record of AMV is short, long-term behavior of AMV is unknown,…
1d
Chaos in a simple model of a delta network [Earth, Atmospheric, and Planetary Sciences]
The flux partitioning in delta networks controls how deltas build land and generate stratigraphy. Here, we study flux-partitioning dynamics in a delta network using a simple numerical model consisting of two orders of bifurcations. Previous work on single bifurcations has shown periodic behavior arising due to the interplay between channel…
1d
Diatom modulation of select bacteria through use of two unique secondary metabolites [Ecology]
Unicellular eukaryotic phytoplankton, such as diatoms, rely on microbial communities for survival despite lacking specialized compartments to house microbiomes (e.g., animal gut). Microbial communities have been widely shown to benefit from diatom excretions that accumulate within the microenvironment surrounding phytoplankton cells, known as the phycosphere. However, mechanisms that enable diatom
1d
Seasonality and uncertainty in global COVID-19 growth rates [Ecology]
The virus causing COVID-19 has spread rapidly worldwide and threatens millions of lives. It remains unknown, as of April 2020, whether summer weather will reduce its spread, thereby alleviating strains on hospitals and providing time for vaccine development. Early insights from laboratory studies and research on related viruses predicted that…
1d
Life cycle patterns of cognitive performance over the long run [Economic Sciences]
Little is known about how the age pattern in individual performance in cognitively demanding tasks changed over the past century. The main difficulty for measuring such life cycle performance patterns and their dynamics over time is related to the construction of a reliable measure that is comparable across individuals and…
1d
Superhydrophobic surfaces for extreme environmental conditions [Engineering]
Superhydrophobic surfaces for repelling impacting water droplets are typically created by designing structures with capillary (antiwetting) pressures greater than those of the incoming droplet (dynamic, water hammer). Recent work has focused on the evolution of the intervening air layer between droplet and substrate during impact, a balance of air compression…
1d
Design principles for self-forming interfaces enabling stable lithium-metal anodes [Engineering]
The path toward Li-ion batteries with higher energy densities will likely involve use of thin lithium (Li)-metal anode (<50 µm thickness), whose cyclability today remains limited by dendrite formation and low coulombic efficiency (CE). Previous studies have shown that the solid–electrolyte interface (SEI) of the Li metal plays a crucial…
1d
A 3D-printed molecular ferroelectric metamaterial [Engineering]
Molecular ferroelectrics combine electromechanical coupling and electric polarizabilities, offering immense promise in stimuli-dependent metamaterials. Despite such promise, current physical realizations of mechanical metamaterials remain hindered by the lack of rapid-prototyping ferroelectric metamaterial structures. Here, we present a continuous rapid printing strategy for the volumetric deposit
1d
Inner Workings: Crop researchers harness artificial intelligence to breed crops for the changing climate [Environmental Sciences]
Until recently, the field of plant breeding looked a lot like it did in centuries past. A breeder might examine, for example, which tomato plants were most resistant to drought and then cross the most promising plants to produce the most drought-resistant offspring. This process would be repeated, plant generation…
1d
Changing nutrient cycling in Lake Baikal, the world's oldest lake [Environmental Sciences]
Lake Baikal, lying in a rift zone in southeastern Siberia, is the world's oldest, deepest, and most voluminous lake that began to form over 30 million years ago. Cited as the "most outstanding example of a freshwater ecosystem" and designated a World Heritage Site in 1996 due to its high…
1d
Mobile device data reveal the dynamics in a positive relationship between human mobility and COVID-19 infections [Environmental Sciences]
Accurately estimating human mobility and gauging its relationship with virus transmission is critical for the control of COVID-19 spreading. Using mobile device location data of over 100 million monthly active samples, we compute origin–destination travel demand and aggregate mobility inflow at each US county from March 1 to June 9,…
1d
Prenatal and early-life exposure to the Great Chinese Famine increased the risk of tuberculosis in adulthood across two generations [Environmental Sciences]
Global food security is a major driver of population health, and food system collapse may have complex and long-lasting effects on health outcomes. We examined the effect of prenatal exposure to the Great Chinese Famine (1958–1962)—the largest famine in human history—on pulmonary tuberculosis (PTB) across consecutive generations in a major…
1d
Revealing mechanisms of mating plug function under sexual selection [Evolution]
Mating plugs are produced by many sexually reproducing animals and are hypothesized to promote male fertilization success under promiscuous mating. However, tests of this hypothesis have been constrained by an inability to discriminate ejaculates of different males in direct competition. Here, we use stable isotope labeling in vivo and proteomics…
1d
A release from developmental bias accelerates morphological diversification in butterfly eyespots [Evolution]
Development can bias the independent evolution of traits sharing ontogenetic pathways, making certain evolutionary changes less likely. The eyespots commonly found on butterfly wings each have concentric rings of differing colors, and these serially repeated pattern elements have been a focus for evo–devo research. In the butterfly family Nymphalidae, eyespots…
1d
Toxin-like neuropeptides in the sea anemone Nematostella unravel recruitment from the nervous system to venom [Evolution]
The sea anemone Nematostella vectensis (Anthozoa, Cnidaria) is a powerful model for characterizing the evolution of genes functioning in venom and nervous systems. Although venom has evolved independently numerous times in animals, the evolutionary origin of many toxins remains unknown. In this work, we pinpoint an ancestral gene giving rise…
1d
Nucleosome Positioning Regulates the Establishment, Stability, and Inheritance of Heterochromatin in Saccharomyces cerevisiae [Genetics]
Heterochromatic domains are complex structures composed of nucleosome arrays that are bound by silencing factors. This composition raises the possibility that certain configurations of nucleosome arrays facilitate heterochromatic silencing. We tested this possibility in Saccharomyces cerevisiae by systematically altering the distance between heterochromatic nucleosome-depleted regions (NDRs), whic
1d
Extracellular cyclic dinucleotides induce polarized responses in barrier epithelial cells by adenosine signaling [Immunology and Inflammation]
Cyclic dinucleotides (CDNs) are secondary messengers used by prokaryotic and eukaryotic cells. In mammalian cells, cytosolic CDNs bind STING (stimulator of IFN gene), resulting in the production of type I IFN. Extracellular CDNs can enter the cytosol through several pathways but how CDNs work from outside eukaryotic cells remains poorly…
1d
Bifidobacterium alters the gut microbiota and modulates the functional metabolism of T regulatory cells in the context of immune checkpoint blockade [Immunology and Inflammation]
Immune checkpoint-blocking antibodies that attenuate immune tolerance have been used to effectively treat cancer, but they can also trigger severe immune-related adverse events. Previously, we found that Bifidobacterium could mitigate intestinal immunopathology in the context of CTLA-4 blockade in mice. Here we examined the mechanism underlying this process. We found…
1d
Interactions between host genetics and gut microbiota determine susceptibility to CNS autoimmunity [Immunology and Inflammation]
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system. The etiology of MS is multifactorial, with disease risk determined by genetics and environmental factors. An emerging risk factor for immune-mediated diseases is an imbalance in the gut microbiome. However, the identity of gut microbes associated with disease…
1d
Selective tumor antigen vaccine delivery to human CD169+ antigen-presenting cells using ganglioside-liposomes [Immunology and Inflammation]
Priming of CD8+ T cells by dendritic cells (DCs) is crucial for the generation of effective antitumor immune responses. Here, we describe a liposomal vaccine carrier that delivers tumor antigens to human CD169/Siglec-1+ antigen-presenting cells using gangliosides as targeting ligands. Ganglioside-liposomes specifically bound to CD169 and were internalized by in…
1d
IL-36R signaling integrates innate and adaptive immune-mediated protection against enteropathogenic bacteria [Immunology and Inflammation]
Enteropathogenic bacterial infections are a global health issue associated with high mortality, particularly in developing countries. Efficient host protection against enteropathogenic bacterial infection is characterized by coordinated responses between immune and nonimmune cells. In response to infection in mice, innate immune cells are activated to produce interleukin (IL)-23 and IL-22,…
1d
Decoy nanoparticles protect against COVID-19 by concurrently adsorbing viruses and inflammatory cytokines [Medical Sciences]
The COVID-19 pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has highlighted the urgent need to rapidly develop therapeutic strategies for such emerging viruses without effective vaccines or drugs. Here, we report a decoy nanoparticle against COVID-19 through a powerful two-step neutralization approach: virus neutralization in the first…
1d
MNK2 governs the macrophage antiinflammatory phenotype [Medical Sciences]
Tumor-associated macrophages (TAMs) continuously fine tune their immune modulatory properties, but how gene expression programs coordinate this immune cell plasticity is largely unknown. Selective mRNA translation, controlled by MNK1/MNK2 and mTOR pathways impinging on eIF4E, facilitates reshaping of proteomes without changes in abundance of corresponding mRNAs. Using polysome profiling developed.
1d
Polymerase {delta} promotes chromosomal rearrangements and imprecise double-strand break repair [Medical Sciences]
Recent studies have implicated DNA polymerases θ (Pol θ) and β (Pol β) as mediators of alternative nonhomologous end-joining (Alt-NHEJ) events, including chromosomal translocations. Here we identify subunits of the replicative DNA polymerase δ (Pol δ) as promoters of Alt-NHEJ that results in more extensive intrachromosomal mutations at a single…
1d
The cytokine MIF controls daily rhythms of symbiont nutrition in an animal-bacterial association [Microbiology]
The recent recognition that many symbioses exhibit daily rhythms has encouraged research into the partner dialogue that drives these biological oscillations. Here we characterized the pivotal role of the versatile cytokine macrophage migration inhibitory factor (MIF) in regulating a metabolic rhythm in the model light-organ symbiosis between Euprymna scolopes and…
1d
Global diversity of microbial communities in marine sediment [Microbiology]
Microbial life in marine sediment contributes substantially to global biomass and is a crucial component of the Earth system. Subseafloor sediment includes both aerobic and anaerobic microbial ecosystems, which persist on very low fluxes of bioavailable energy over geologic time. However, the taxonomic diversity of the marine sedimentary microbial biome…
1d
Stimulator of interferon genes (STING) is an essential proviral host factor for human rhinovirus species A and C [Microbiology]
Human rhinoviruses (RVs) are positive-strand RNA viruses that cause respiratory tract disease in children and adults. Here we show that the innate immune signaling protein STING is required for efficient replication of members of two distinct RV species, RV-A and RV-C. The host factor activity of STING was identified in…
1d
Synthetic gene-regulatory networks in the opportunistic human pathogen Streptococcus pneumoniae [Microbiology]
Streptococcus pneumoniae can cause disease in various human tissues and organs, including the ear, the brain, the blood, and the lung, and thus in highly diverse and dynamic environments. It is challenging to study how pneumococci control virulence factor expression, because cues of natural environments and the presence of an…
1d
Defining principles that influence antimicrobial peptide activity against capsulated Klebsiella pneumoniae [Microbiology]
The extracellular polysaccharide capsule of Klebsiella pneumoniae resists penetration by antimicrobials and protects the bacteria from the innate immune system. Host antimicrobial peptides are inactivated by the capsule as it impedes their penetration to the bacterial membrane. While the capsule sequesters most peptides, a few antimicrobial peptides have been identified…
1d
Mosquito metabolomics reveal that dengue virus replication requires phospholipid reconfiguration via the remodeling cycle [Microbiology]
Dengue virus (DENV) subdues cell membranes for its cellular cycle by reconfiguring phospholipids in humans and mosquitoes. Here, we determined how and why DENV reconfigures phospholipids in the mosquito vector. By inhibiting and activating the de novo phospholipid biosynthesis, we demonstrated the antiviral impact of de novo–produced phospholipids. In line…
1d
Structural basis of Chikungunya virus inhibition by monoclonal antibodies [Microbiology]
Chikungunya virus (CHIKV) is an emerging viral pathogen that causes both acute and chronic debilitating arthritis. Here, we describe the functional and structural basis as to how two anti-CHIKV monoclonal antibodies, CHK-124 and CHK-263, potently inhibit CHIKV infection in vitro and in vivo. Our in vitro studies show that CHK-124…
1d
Formation of global self-beliefs in the human brain [Neuroscience]
Humans create metacognitive beliefs about their performance across many levels of abstraction—from local confidence in individual decisions to global estimates of our skills and abilities. Despite a rich literature on the neural basis of local confidence judgements, how global self-performance estimates (SPEs) are constructed remains unknown. Using functional magnetic resonance…
1d
Cell type-specific lipid storage changes in Parkinson's disease patient brains are recapitulated by experimental glycolipid disturbance [Neuroscience]
Neurons are dependent on proper trafficking of lipids to neighboring glia for lipid exchange and disposal of potentially lipotoxic metabolites, producing distinct lipid distribution profiles among various cell types of the central nervous system. Little is known of the cellular distribution of neutral lipids in the substantia nigra (SN) of…
1d
Forelimb force direction and magnitude independently controlled by spinal modules in the macaque [Neuroscience]
Modular organization of the spinal motor system is thought to reduce the cognitive complexity of simultaneously controlling the large number of muscles and joints in the human body. Although modular organization has been confirmed in the hindlimb control system of several animal species, it has yet to be established in…
1d
P7C3-A20 treatment one year after TBI in mice repairs the blood-brain barrier, arrests chronic neurodegeneration, and restores cognition [Neuroscience]
Chronic neurodegeneration in survivors of traumatic brain injury (TBI) is a major cause of morbidity, with no effective therapies to mitigate this progressive and debilitating form of nerve cell death. Here, we report that pharmacologic restoration of the blood–brain barrier (BBB), 12 mo after murine TBI, is associated with arrested…
1d
Magnetized topological insulator multilayers [Physics]
We discuss the magnetic and topological properties of bulk crystals and quasi–two-dimensional (quasi-2D) thin films formed by stacking intrinsic magnetized topological insulator (for example, Mn (SbxBi1−x)2X4 with X = Se,Te) septuple layers and topological insulator quintuple layers in arbitrary order. Our analysis makes use of a simplified model that retains…
1d
Tuning the quantumness of simple Bose systems: A universal phase diagram [Physics]
We present a comprehensive theoretical study of the phase diagram of a system of many Bose particles interacting with a two-body central potential of the so-called Lennard-Jones form. First-principles path-integral computations are carried out, providing essentially exact numerical results on the thermodynamic properties. The theoretical model used here provides a…
1d
Extremely small twist elastic constants in lyotropic nematic liquid crystals [Physics]
Recent measurements of the elastic constants in lyotropic chromonic liquid crystals (LCLCs) have revealed an anomalously small twist elastic constant compared to the splay and bend constants. Interestingly, measurements of the elastic constants in the micellar lyotropic liquid crystals (LLCs) that are formed by surfactants, by far the most ubiquitous…
1d
Multiphase magnetism in Yb2Ti2O7 [Physics]
We use neutron scattering to show that ferromagnetism and antiferromagnetism coexist in the low T state of the pyrochlore quantum magnet Yb2Ti2O7. While magnetic Bragg peaks evidence long-range static ferromagnetic order, inelastic scattering shows that short-range correlated antiferromagnetism is also present. Small-angle neutron scattering provides direct evidence for mesoscale magnetic…
1d
Liquid-liquid phase separation promotes animal desiccation tolerance [Physiology]
Proteinaceous liquid-liquid phase separation (LLPS) occurs when a polypeptide coalesces into a dense phase to form a liquid droplet (i.e., condensate) in aqueous solution. In vivo, functional protein-based condensates are often referred to as membraneless organelles (MLOs), which have roles in cellular processes ranging from stress responses to regulation of…
1d
N-glycosylation shields Phytophthora sojae apoplastic effector PsXEG1 from a specific host aspartic protease [Plant Biology]
Hosts and pathogens are engaged in a continuous evolutionary struggle for physiological dominance. A major site of this struggle is the apoplast. In Phytophthora sojae–soybean interactions, PsXEG1, a pathogen-secreted apoplastic endoglucanase, is a key focal point of this struggle, and the subject of two layers of host defense and pathogen…
1d
The UBC27-AIRP3 ubiquitination complex modulates ABA signaling by promoting the degradation of ABI1 in Arabidopsis [Plant Biology]
Abscisic acid (ABA) is the key phytohormone in plant drought tolerance and stress adaptation. The clade A protein phosphatase 2Cs (PP2Cs) like ABI1 (ABA-INSENSITIVE 1) work as coreceptors of ABA and regulate multiple ABA responses. Ubiquitination of ABI1 has been proven to play important regulatory roles in ABA signaling. However,…
1d
Sanctuary policies reduce deportations without increasing crime [Political Sciences]
The US government maintains that local sanctuary policies prevent deportations of violent criminals and increase crime. This report tests those claims by combining Immigration and Customs Enforcement (ICE) deportation data and Federal Bureau of Investigation (FBI) crime data with data on the implementation dates of sanctuary policies between 2010 and…
1d
Acceleration of plague outbreaks in the second pandemic [Population Biology]
Historical records reveal the temporal patterns of a sequence of plague epidemics in London, United Kingdom, from the 14th to 17th centuries. Analysis of these records shows that later epidemics spread significantly faster ("accelerated"). Between the Black Death of 1348 and the later epidemics that culminated with the Great Plague…
1d
Economic hardship and mental health complaints during COVID-19 [Psychological and Cognitive Sciences]
The COVID-19 economic crash is idiosyncratic because of its virtual standstill of economic activity. We therefore ask how individual labor market experiences are related to the development of mental health complaints in the spring of 2020. As clinical data collection was compromised during the lockdowns, standardized surveys of the European…
1d
Neurotypical individuals fail to understand action vitality form in children with autism spectrum disorder [Psychological and Cognitive Sciences]
Any defects of sociality in individuals diagnosed with autism spectrum disorder (ASD) are standardly explained in terms of those individuals' putative impairments in a variety of cognitive functions. Recently, however, the need for a bidirectional approach to social interaction has been emphasized. Such an approach highlights differences in basic ways…
1d
Model-free decision making is prioritized when learning to avoid harming others [Psychological and Cognitive Sciences]
Moral behavior requires learning how our actions help or harm others. Theoretical accounts of learning propose a key division between "model-free" algorithms that cache outcome values in actions and "model-based" algorithms that map actions to outcomes. Here, we tested the engagement of these mechanisms and their neural basis as participants…
1d
Conservative and liberal attitudes drive polarized neural responses to political content [Psychological and Cognitive Sciences]
People tend to interpret political information in a manner that confirms their prior beliefs, a cognitive bias that contributes to rising political polarization. In this study, we combined functional magnetic resonance imaging with semantic content analyses to investigate the neural mechanisms that underlie the biased processing of real-world political content….
1d
Gender differences in COVID-19 attitudes and behavior: Panel evidence from eight countries [Social Sciences]
The initial public health response to the breakout of COVID-19 required fundamental changes in individual behavior, such as isolation at home or wearing masks. The effectiveness of these policies hinges on generalized public obedience. Yet, people's level of compliance may depend on their beliefs regarding the pandemic. We use original…
1d
Voluntary leadership and the emergence of institutions for self-governance [Sustainability Science]
Strong local institutions are important for the successful governance of common-pool resources (CPRs), but why do such institutions emerge in the first place and why do they sometimes not emerge at all? We argue that voluntary local leaders play an important role in the initiation of self-governance institutions because such…
1d
Correction for Ishida et al., Novel electronic nematicity in heavily hole-doped iron pnictide superconductors [Correction]
PHYSICS Correction for "Novel electronic nematicity in heavily hole-doped iron pnictide superconductors," by Kousuke Ishida, Masaya Tsujii, Suguru Hosoi, Yuta Mizukami, Shigeyuki Ishida, Akira Iyo, Hiroshi Eisaki, Thomas Wolf, Kai Grube, Hilbert v. Löhneysen, Rafael M. Fernandes, and Takasada Shibauchi, which was first published March 12, 2020; 10.1073/pnas.1909172117 (Proc. Natl….
1d
Correction for Escobar et al., BCG vaccine protection from severe coronavirus disease 2019 (COVID-19) [Correction]
APPLIED BIOLOGICAL SCIENCES Correction for "BCG vaccine protection from severe coronavirus disease 2019 (COVID-19)," by Luis E. Escobar, Alvaro Molina-Cruz, and Carolina Barillas-Mury, which was first published July 9, 2020; 10.1073/pnas.2008410117 (Proc. Natl. Acad. Sci. U.S.A. 117, 17720–17726). The authors note, "Due to a query raised regarding historical BCG vaccination…
1d
Correction for Sim et al., High-affinity oligoclonal TCRs define effective adoptive T cell therapy targeting mutant KRAS-G12D [Correction]
BIOPHYSICS AND COMPUTATIONAL BIOLOGY Correction for "High-affinity oligoclonal TCRs define effective adoptive T cell therapy targeting mutant KRAS-G12D," by Malcolm J. W. Sim, Jinghua Lu, Matthew Spencer, Francis Hopkins, Eric Tran, Steven A. Rosenberg, Eric O. Long, and Peter D. Sun, which was first published May 27, 2020; 10.1073/pnas.1921964117 (Proc….
1d
Correction for Shi et al., PIWIL1 promotes gastric cancer via a piRNA-independent mechanism [Correction]
MEDICAL SCIENCES Correction for "PIWIL1 promotes gastric cancer via a piRNA-independent mechanism," by Shuo Shi, Zhen-Zhen Yang, Sanhong Liu, Fan Yang, and Haifan Lin, which was first published August 26, 2020; 10.1073/pnas.2008724117 (Proc. Natl. Acad. Sci. U.S.A. 117, 22390–22401). The authors note that Fig. 5 appeared incorrectly. In "panel A,…
1d
These prehistoric rodents were social butterflies
A newly identified small mammal from the Late Cretaceous epoch (about 75.5 million years ago) that resembles today's rodent might be the earliest example of mammals exhibiting social behavior beyond coming together to mate or raise young. (Misaki Ouchida/) Gatherings have been upended this year, as many of us meet over Zoom or in distanced and masked settings outdoors to avoid the risk of contrib
1d
Implantable device can monitor and treat heart disease
Cunjiang Yu, Bill D. Cook Associate Professor of Mechanical Engineering at UH, led a group of researchers that has reported developing a cardiac patch made from fully rubbery electronics that can be placed directly on the heart to collect electrophysiological activity, temperature, heartbeat and other indicators, all at the same time.

 

Denmark to cull up to 17 million mink amid coronavirus fears
Cases of a mutated strain of Covid-19 have been detected that may undermine future vaccines.
5h
Weird ring-shaped molecule on Titan could be a building block to life
An unexpected molecule spotted in the atmosphere of Saturn's moon Titan has never been seen on any planet or moon before – it may help form the building blocks of life
12h
Professor: Teleselskaberne kan stoppe ulovlig logning af danskerne i dag – hvis de vil
Som udgangspunkt skal Teleselskaberne ikke lægge sag an mod staten for at stoppe masselogningen af danskerne. De skal bare stoppe logningen. Så må det være op til staten, om den mener, den har en sag – hvilket er usandsynligt, vurderer professor.
10h

 

????Strain of rhizobacteria shown to naturally and sustainably promote rice growth
"Our study has demonstrated that B. pumilus LZP02 colonizes rice roots and promotes growth by improving carbohydrate metabolism and phenylpropanoid biosynthesis," explained Zhigang Wang, one of the scientists involved in the research. "These findings show a new light on how microbes and plants communicate in a friendly way."
4min
Author Correction: DNA damage interactions on both nanometer and micrometer scale determine overall cellular damage
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76568-3
9min
ArcelorMittal expects less pain from latest coronavirus restrictions
Steelmaker's core profits exceed market expectations in Q3
9min
One spouse's view of aging may sway the other's health
Elderly people can expect their health to decline—as well as that of their spouse—when their self-perceptions about aging become negative, a new study suggests. The study finds that health effects differ by gender among elderly couples. A husband's self-perceptions about aging are associated with his wife's depressive symptoms, whereas a wife's views correlate with her husband's physical disabili
12min
Five ways to go back in time on the internet
When you're determined to find something, these tools will make it easier. (Daniel Lim/Unsplash/) The World Wide Web has been up and running since the early 1990s, and countless amounts of text, images, video, and audio have been uploaded since then. Run a web search today though, and it'll serve you the newest pages first. Not great if you're looking for something older. Digging into the interne
16min
Urban golf courses are biodiversity oases—opening them up puts that at risk
High demand for green space under COVID restrictions led councils in Melbourne to temporarily open golf courses to non-golfers and fuelled public calls to "unlock" or repurpose them permanently. However, this must be done carefully because many golf courses are oases of biodiversity in Australian cities. If more people visit golf courses, increased disturbance of wildlife is just one of the result
18min
Did prehistoric women hunt? New research suggests so
For a long time, it was assumed that hunting in prehistoric societies was primarily carried out by men. Now a new study adds to a body of evidence challenging this idea. The research reports the discovery of a female body, buried alongside hunting tools, in the Americas some 9,000 years ago.
18min
Working from home during COVID-19: What do employees really want?
Since the COVID-19 pandemic began, there has been lots of talk about how people have reacted to being forced to work from home.
18min
Urban golf courses are biodiversity oases—opening them up puts that at risk
High demand for green space under COVID restrictions led councils in Melbourne to temporarily open golf courses to non-golfers and fuelled public calls to "unlock" or repurpose them permanently. However, this must be done carefully because many golf courses are oases of biodiversity in Australian cities. If more people visit golf courses, increased disturbance of wildlife is just one of the result
18min
Därför har Sverige så många skyddsrum
Få länder i världen kan mäta sig med Sveriges investeringar i och byggande av skyddsrum. Varifrån uppstod idén till civila skyddsrum och varför var det så viktigt att bygga en civil organisation för en verksamhet som i huvudsak var av militär karaktär? Peter Bennesved berättar att det har varit med skräckblandad förtjusning som han betraktat utvecklingen under de senaste åren, med stora förändrin
27min
Shifting Studies/Career from Computer Science to Cognitive Science
After a few years of working as a backend developer for a big tech Company, I've decided that I do not want to Software Engineering anymore and decide to get back to studies at the age of 26. As a teenager I've been really interested in analysing people but did not pursue a career in psychology because "it was not a hard science/I could not make a living out of it/ ". Recently I've gone through t
31min
Free and easy to use mental health resources I've found useful
Given everything that's happening in the world I thought I'd share my list of easy to use and easy to access mental health resources. Please feel free to add others you find particularly useful. This isn't a list of charities, organisations or support groups. I think it's relatively easy to find the phone numbers for various helplines relating to mental health should you need them. Instead, I wan
31min
Ny teknik gör renskötseln enklare
Med gps är det numera enkelt att följa renarnas väg över landskapen på digitala kartor. De traditionellt renskötande samebyarna har i huvudsak dragit nytta av den nya tekniken, enligt Kajsa Kuoljoks avhandling i etnologi vid Umeå universitet. – Arbetet har förenklats, eftersom de kan följa renarna på ett nytt sätt. Även i diskussioner med tredje part har gps-kartor kunnat användas för att stärka s
35min
Crop Yield with Higher CO2
One of the arguments often put forward by global warming deniers is that CO2 is not a pollutant, and in fact higher CO2 is good for crop yield. This point is invoked during their shifting defense – the planet is not warming; well, OK, it's warming but it's not due to humans; alright, humans are to blame but this won't necessarily be a bad thing. See – CO2 is good for plants. While this core claim
36min
The International Space Station at 20 offers hope and a template for future cooperation
On Nov. 2, 2020, the International Space Station celebrated its 20th anniversary of continuous human occupation. With astronauts and cosmonauts from around the world working together, the ISS has demonstrated humankind's ability to not only live and work in space but cooperate with one another. This remarkable achievement is significant as countries and companies around the world look to expand sp
37min
New environmental intelligence tool will help protect Cornwall's wildlife and landscape
A new environmental intelligence tool for Cornwall and the Isles of Scilly will help protect the region's precious wildlife and landscape.
43min
Astronomers Finally Know What Causes Fast Radio Bursts
After more than a decade, researchers have confirmed their suspicions about the source of the phenomena.
46min
The 6 Best Coffee Delivery Subscription Boxes (2020)
These services deliver fresh, delicious coffee beans, grounds, or pods right to your door—each with its own twist.
46min
Science Sound(E)scapes: Amazon Frog Choruses at Night
Need a break from politics and pandemic? You're probably not in the Amazon rainforest right now, but we can take you there in audio. Today, in part two of our three-part audio sound escape, we… — Read more on ScientificAmerican.com
46min
New environmental intelligence tool will help protect Cornwall's wildlife and landscape
A new environmental intelligence tool for Cornwall and the Isles of Scilly will help protect the region's precious wildlife and landscape.
49min
Voyager 2 Probe Talks to Upgraded NASA Network After 8 Months of Silence
NASA launched the Voyager probes in the 1970s, taking advantage of a rare alignment of the outer planets to fling the spacecraft out of the solar system. After more than 40 years, these groundbreaking explorers are still alive and talking to the team here on Earth. We can say that with certainty now that NASA has made significant progress upgrading one of its deep-space communication arrays. NASA
51min
Smart collar to track your pet in real-time
CSIRO's Data61, the digital specialist arm of Australia's national science agency, announced today it is developing a prototype smart pet collar in collaboration with agtech company Ceres Tag, that will enable pet owners to accurately track the location of their animal from a short and long distance, filling a gap in the smart collar market.
54min
Cells transform themselves in male worms to improve mating
A cell in worms that transforms itself into a completely different type of cell when males mature, to play a key role in mating behavior, has been recently discovered by a team led by UCL researchers. The researchers say their findings, published in eLife, may lead to new clinical applications if scientists can reproduce the mechanism to reprogram cells to adopt new functions.
54min
Researchers uncover novel mechanism of weak apical dominance in rice
Cereal crops exhibit two distinct types of branching which are the important determinants of crop yield. Crops such as maize and sorghum produce only one culm to reduce competition among sinks and increase the productivity of the main culm, thus exhibiting enhanced apical dominance. Rice and wheat produce multiple tillers (a type of branch that is similar in shape and height to the main culm) and
54min
Scientists characterize four episodes of large-scale gene duplications in evolutionary past of mosses
Gene duplications provide genetic raw materials and are considered as important driving forces in diversification and evolution. The evolution of land plants is characterized by recurrent ancestral paleopolyploidy events, i.e. ancestral whole genome duplications.
54min
3-D model shows bacterial motor in action
Nagoya University scientists in Japan and colleagues at Yale University in the US have uncovered details of how the bacterial propeller, known as the flagellum, switches between counterclockwise and clockwise rotation, allowing it to control its movement. The findings were published in the journal eLife and include a model that shows structural changes happening within portions of the flagellar mo
54min
Natural enemy of Asian fruit fly, previously thought to be one species, is in fact two
CABI scientists have led new research revealing strong evidence that a natural enemy of the prolific Asian fruit fly Drosphila suzukii—previously believed to be one species—is, in fact, two species; furthermore, only one of the parasitoids proves suitable as a biological control agent against Drosphila suzukii.
54min
Researchers highlight the potential of tropical-tree‐sourced foods for sustainable food systems
Two of humanity's biggest problems—the climate crisis and abysmal eating habits—can partly be solved by one healthy solution: Eating more food from tropical trees. While global trends in agriculture and diets are not easily reversed, scientists say that creating incentives to grow and eat more mangos, avocados and Brazil nuts—and dozens of tree-sourced foods most people have never heard of—can be
54min
Smart collar to track your pet in real-time
CSIRO's Data61, the digital specialist arm of Australia's national science agency, announced today it is developing a prototype smart pet collar in collaboration with agtech company Ceres Tag, that will enable pet owners to accurately track the location of their animal from a short and long distance, filling a gap in the smart collar market.
55min
Cells transform themselves in male worms to improve mating
A cell in worms that transforms itself into a completely different type of cell when males mature, to play a key role in mating behavior, has been recently discovered by a team led by UCL researchers. The researchers say their findings, published in eLife, may lead to new clinical applications if scientists can reproduce the mechanism to reprogram cells to adopt new functions.
55min
Researchers uncover novel mechanism of weak apical dominance in rice
Cereal crops exhibit two distinct types of branching which are the important determinants of crop yield. Crops such as maize and sorghum produce only one culm to reduce competition among sinks and increase the productivity of the main culm, thus exhibiting enhanced apical dominance. Rice and wheat produce multiple tillers (a type of branch that is similar in shape and height to the main culm) and
55min
Scientists characterize four episodes of large-scale gene duplications in evolutionary past of mosses
Gene duplications provide genetic raw materials and are considered as important driving forces in diversification and evolution. The evolution of land plants is characterized by recurrent ancestral paleopolyploidy events, i.e. ancestral whole genome duplications.
55min
3-D model shows bacterial motor in action
Nagoya University scientists in Japan and colleagues at Yale University in the US have uncovered details of how the bacterial propeller, known as the flagellum, switches between counterclockwise and clockwise rotation, allowing it to control its movement. The findings were published in the journal eLife and include a model that shows structural changes happening within portions of the flagellar mo
55min
Shining a light on the issue of wine fraud
University of Adelaide wine researchers are developing a fast and simple method of authenticating wine—a potential solution against the estimated billions of dollars' worth of wine fraud globally, but also offering a possible means of building regional branding.
55min
Natural enemy of Asian fruit fly, previously thought to be one species, is in fact two
CABI scientists have led new research revealing strong evidence that a natural enemy of the prolific Asian fruit fly Drosphila suzukii—previously believed to be one species—is, in fact, two species; furthermore, only one of the parasitoids proves suitable as a biological control agent against Drosphila suzukii.
55min
Crystals reveal the danger of sleeping volcanoes
Most active volcanoes on Earth are dormant, meaning that they have not erupted for hundreds or even thousands of years, and are normally not considered hazardous by the local population. A team of volcanologists from the University of Geneva (UNIGE), working in collaboration with the University of Heidelberg in Germany, has devised a technique that can predict the devastating potential of volcanoe
55min
Researchers highlight the potential of tropical-tree‐sourced foods for sustainable food systems
Two of humanity's biggest problems—the climate crisis and abysmal eating habits—can partly be solved by one healthy solution: Eating more food from tropical trees. While global trends in agriculture and diets are not easily reversed, scientists say that creating incentives to grow and eat more mangos, avocados and Brazil nuts—and dozens of tree-sourced foods most people have never heard of—can be
55min
Nature-inspired design: Mimicking moth eyes to produce transparent anti-reflective coatings
There are many human problems that scientists and engineers have solved by drawing ideas directly from biomechanisms found in other lifeforms, from Velcro to Japan's famous bullet trains, the Shinkansen. Thus, it should not come as a surprise to know that many remarkable advances in anti-reflective coating were inspired by the peculiar biostructures found in moth eyes.
55min
Visors, Nightingales and catching it twice: your Covid questions answered
You put your coronavirus health and policy questions to us. Here are the answers We asked readers what they wanted to know about coronavirus and health. Haroon Siddique , a reporter on our health team, has the answers. Continue reading…
1h
Vaccineforsker: Derfor skaber minkvariationen bekymring
PLUS. Danske forskere påtænker nu at indkøbe minksekvensen, så den hurtigt kan blive til vaccine, såfremt behovet skulle opstå. »Lige nu er varianten dog ingen stor trussel,« vurderer professor.
1h
I Fostered a One-Eyed Goblin. She Changed My Life in Lockdown
Radish is technically a chihuahua (but I'm not convinced). And after a year of misery, she was everything I needed.
1h
Want to Fight the Zombie Fire Apocalypse? Weaponize Math
Peat fires smolder in the ground for months, suddenly emerging as surface wildfires. New simulations reveal their strange life, death, and reanimation.
1h
These Factory Robots May Point the Way to 5G's Future
Manufacturing, mining, and delivery firms, among others, are exploring building their own high-speed wireless networks with the new standard.
1h
The Evolution of Game Console Design—and American Gamers
They say art mimics life, and that definitely applies to the often garish aesthetics of gaming hardware, from the 1977 Atari 2600 to the PlayStation 5.
1h
Will the Universe Remember Us after We're Gone?
Physicists insist that information never vanishes, not even in black holes, but this "law" reflects wishful thinking — Read more on ScientificAmerican.com
1h
Google patcher anden nuldagssårbarhed i Chrome på to uger
En ny opdatering til Google Chrome lukker et sikkerhedshul, som angribere har været i gang med at udnytte.
1h
Rumtvilling valgt som senator: Kaldte Trumps Space Force en dum ide
Arizonas nye senator Mark Kelly har en fortid som astronaut i Nasa og deltog med sin tvillingebror i en undersøgelse, der skulle afgøre, om mennesker kan sendes til Mars. Han har også kaldt præsident Donald Trumps ide om Space Force for dum.
1h
Suborbital Scientists Prepare to Storm the Heavens
Pluto pioneer Alan Stern and other researchers are on the cusp of flying to space alongside their experiments — Read more on ScientificAmerican.com
1h
Suborbital Scientists Prepare to Storm the Heavens
Pluto pioneer Alan Stern and other researchers are on the cusp of flying to space alongside their experiments — Read more on ScientificAmerican.com
2h
**Laga hjärnan med friska gener
Genterapi innebär att man behandlar en sjukdom genom att lägga till eller förändra gener i vissa, eller alla, av kroppens celler. Kan det vara ett sätt att behandla hjärnans sjukdomar?
2h
AstraZeneca expects Covid vaccine trial results this year
UK drugmaker misses consensus estimates on third-quarter revenues
2h
U.S. Quits Paris Climate Agreement: Questions and Answers
President Trump's withdrawal formally came into force the day after Election Day in the United States. Here's what it means.
2h
2h
How to wear your baby to work
Nature, Published online: 05 November 2020; doi:10.1038/d41586-020-03142-2 Genoa R. Warner found a new way to manage her work–life balance.
2h
Oregon just voted to legalize magic mushrooms. Here's what that actually means.
The ballot measure doesn't mean these drugs will be sold in dispensaries. (Unsplash/) Tuesday's dramatic election night saw the approval of multiple historic ballot measures, including ground-breaking new drug policies in Oregon. In addition to decriminalizing the possession of small amounts of most recreational drugs —and moving to establish an addiction treatment program funded by tax revenue f
2h
Author Correction: Continuous scanning for Bragg coherent X-ray imaging
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-75649-7
3h
Alcohol induces TGFβ1 via downregulation of miR-1946a in murine lung fibroblast
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76148-5
3h
Evaluation of coagulation parameters in patients with parathyroid adenoma
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76167-2
3h
Potential of MALDI-TOF-based serum N-glycan analysis for the diagnosis and surveillance of breast cancer
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76195-y Potential of MALDI-TOF-based serum N -glycan analysis for the diagnosis and surveillance of breast cancer
3h
Graphene oxide/mussel foot protein composites for high-strength and ultra-tough thin films
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76004-6
3h
Infant expectations of instant or delayed gratification
Scientific Reports, Published online: 05 November 2020; doi:10.1038/s41598-020-76136-9
3h
3h
3h
What If the Earth Fell Inside Jupiter?
submitted by /u/Tubeljkamvr [link] [comments]
3h
If technology became sentient what could we do ethically and morally to not damn ourselves as a species?
We would have to change literally everything. Technology would have to be far less accessible to everyone. Technology centres would exist as like giant daycares for Machines and central hubs for people with things to do. Machines would mostly be inanimate and then their would have to be giant think tanks on how we have already fucked up big time playing God and now we have to decide what to do ab
3h
3h
49% Facebook Employees Don't Believe It Had Positive Impact On World
submitted by /u/-AMARYANA- [link] [comments]
3h
After asi
What comes after artificial super intelligence ? What are the predictions what might come after it ? submitted by /u/jadaakis [link] [comments]
3h
Game that lets you model a national energy grid
submitted by /u/BenReade [link] [comments]
3h
3h
3h
3h
Researchers discover a new way to produce hydrogen using microwaves
submitted by /u/Memetic1 [link] [comments]
3h
3h
3h
Legality of scientific research that studies alternative types of government/society
Say a research institute wants to run an experiment of a few hundred individuals over the course of a couple years to determine how successful an alternative type of government would be. How would the logistics of that work in relation to the country the experiment is taking place in? I know it's been done in the past. How would the research institute need to pay taxes to the government on behalf
3h
3h
Overwatch Is Decreasing Toxicity In Chat With Machine Learning
submitted by /u/-NP7- [link] [comments]
3h
3h
3h
3h
3h
3h
Technique to regenerate optic nerve offers hope for future glaucoma treatment
Scientists have used gene therapy to regenerate damaged nerve fibres in the eye, in a discovery that could aid the development of new treatments for glaucoma, one of the leading causes of blindness worldwide.
3h
Crystals reveal the danger of sleeping volcanoes
Most active volcanoes on Earth are dormant and are normally not considered hazardous. A team of volcanologists from the University of Geneva has devised a technique that can predict their devastating potential. The scientists used zircon, a tiny crystal contained in volcanic rocks, to estimate the volume of magma that could be erupted once Nevado de Toluca volcano (Mexico) will wake up from its do
3h
Natural enemy of Asian fruit fly – previously thought to be one species – is in fact two
CABI scientists have led new research which reveals strong evidence that a natural enemy of the prolific Asian fruit fly Drosphila suzukii – previously believed to be one species – is in fact two with only one of the parasitoid proving suitable as a biological control agent against the pest.
3h
Increasing our ability to predict contemporary evolution
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19437-x Classic debates concerning the extent to which scientists can predict evolution have gained new urgency as environmental changes force species to adapt or risk extinction. We highlight how our ability to predict evolution can be constrained by data limitations that cause poor understanding of deterministic n
3h
Anomalous mechanical materials squeezing three-dimensional volume compressibility into one dimension
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19219-5 Anomalous mechanical behaviors provide an opportunity to regulate the functions of materials. Here the authors show that materials with coexisting negative, zero and positive compressibilities can "squeeze" volume compressibility into one direction, and thus stabilize transmission processes under pressure.
3h
A wearable motion capture device able to detect dynamic motion of human limbs
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19424-2 Current wearable motion capture technologies are unable to accurately detect dynamic motion of human limbs due to drift and instability problems. Here, the authors report a wearable motion capture device combining tri-axis velocity sensor and inertial sensors for accurate 3D limb motion capture.
3h
Intraspecific host variation plays a key role in virus community assembly
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19273-z The factors that determine whether pathogens co-occur in a host are poorly understood, especially for plant viruses. Here the authors conduct field experiments with the plant Plantago lanceolata and its viruses, showing that viral co-occurrences are driven predominantly by environmental context and host geno
3h
Long-lived and disorder-free charge transfer states enable endothermic charge separation in efficient non-fullerene organic solar cells
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19332-5 Designing efficient organic solar cells is limited by the energy required to overcome the mutual Coulomb attraction between electron and hole. Here, the authors reveal long-lived and disorder-free charge-transfer states enable efficient endothermic charge separation in non-fullerene systems with marginal ene
3h
Protrudin functions from the endoplasmic reticulum to support axon regeneration in the adult CNS
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19436-y Increasing the supply of growth machinery to axons is a potential strategy for promoting repair after injury. Here the authors demonstrate that the endoplasmic reticulum adaptor molecule Protrudin provides cellular components that support axonal regeneration in the adult CNS.
3h
Regionalized tissue fluidization is required for epithelial gap closure during insect gastrulation
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19356-x The mechanics of embryonic tissue spreading over spherical eggs is not fully understood. Here, the authors show that during gastrulation in the red flour beetle, extraembryonic tissue epiboly is facilitated by local actomyosin-mediated fluidization of the tissue at the leading edge.
3h
Molecular basis of CTCF binding polarity in genome folding
Nature Communications, Published online: 05 November 2020; doi:10.1038/s41467-020-19283-x The boundaries of topologically associating domains (TADs) arise from the ability of the CTCF protein to stop extrusion of chromatin loops by cohesin. Here the authors find that CTCF positions cohesin through its N-terminus but does not control its overall binding dynamics on chromatin, and show how the orie
3h
Tonåringar vill ha mer kunskap om sex och samlevnad
visar en ny studie från Karlstads universitet. Studien visar också att undervisning och stöd till tonåringar måste ta hänsyn till tonåringens ålder, mognad och kön i högre grad och att samverkan behöver stärkas mellan olika aktörer som arbetar mot tonåringars sexuella hälsa. Brian Unis, doktorand på Karlstads universitet, visar i sin avhandling att sex- och samlevnadsundervisning inte är anpassa
3h
Who Should Get a Covid-19 Vaccine First?
It depends on a complicated interplay of transmission rates, available doses and societal goals.
3h
A Biden Victory Wouldn't Defeat QAnon
Marjorie Taylor Greene, a Republican from Georgia who has repeatedly expressed belief in the QAnon conspiracy theory, was elected to the House of Representatives Tuesday night. Lauren Boebert, a Republican from Colorado who has said that she hopes QAnon is real because "it only means American is getting stronger and better," won her contest too. Come January, almost a million and a half Americans
3h
A Look at the Future of Abortion From Colorado
W ith a newly expanded conservative majority on the Supreme Court, state-level fights over abortion have taken on even more significance: They're a preview of what might happen if the justices grant more latitude to states to determine abortion restrictions. On Tuesday, by a margin of more than half a million votes, Colorado voters firmly rejected a proposition that would have limited abortion mo
3h
For the Next President, Nuclear Weapons Policy Must Be a Priority
For four years, President Trump has been inching the U.S. toward nuclear catastrophe, withdrawing from treaties with Iran and Russia, and pursuing an ill-conceived courtship with North Korea. No matter the outcome of the election, our next president should seize the opportunity to walk us back from the brink.
3h
Klimaforandringer og naturindgreb: Nyt vandatlas samler 35 års satellitdata
Det nye Atlas of Global Surface Water Dynamics illustrerer ændringer i Jordens søer, floder og vådområder over tid.
3h
The burning question of Bonfire Night pollution
Bonfire Night celebrations contaminate our air with hugely elevated amounts of soot, scientists have found.
4h
Verdens proteinforskere får nu tiltrængt hjælp fra dansk AI-værktøj
At sortere kæmpe datamængder er en flaskehals i proteinforskning – et felt, som bl.a….
4h
The burning question of Bonfire Night pollution
Bonfire Night celebrations contaminate our air with 100 times more soot than usual. The particles, also known as black carbon are so small, they can penetrate deep into the lungs and cause irritation. Long term exposure can cause harmful effects on the heart and lungs and contributes to millions of deaths worldwide each year.
4h
WhatsApp Is Adding Disappearing Messages—With Some Limits
The popular encrypted messaging app now lets you automatically make chats vanish after a week, but look out for a few caveats.
4h
Fastnettelefoni: Faste kredsløb lukkes sammen ISDN ved udgangen af 2021
PLUS. TDC bekræfter, at de faste kredsløb, som er særlige punkt-til-punkt kredsløb til telefoni, udfases ved udgangen af 2021. Det sker sideløbende med at ISDN2, ISDN30 og ISDNFlex lukkes. Telia og Uni-Tel er klar til at konvertere ISDN-forbindelser til såkaldt simuleret PSTN.
4h
Eta brings heavy rains, deadly mudslides to Honduras
Eta moved into Honduras on Wednesday as a weakened tropical depression but still bringing the heavy rains that have drenched and caused deadly landslides in the country's east and in northern Nicaragua.
5h
Eradicating black rats on Palmyra Atoll uncovers eye-opening indirect effects
The black rats weren't supposed to be there, on Palmyra Atoll. Likely arriving at the remote Pacific islet network as stowaways with the U.S. Navy during World War II, the rodents, with no natural predators, simply took over. Omnivorous eating machines, they dined on seabird eggs, native crabs and whatever seed and seedling they could find.
5h
Eradicating black rats on Palmyra Atoll uncovers eye-opening indirect effects
The black rats weren't supposed to be there, on Palmyra Atoll. Likely arriving at the remote Pacific islet network as stowaways with the U.S. Navy during World War II, the rodents, with no natural predators, simply took over. Omnivorous eating machines, they dined on seabird eggs, native crabs and whatever seed and seedling they could find.
5h
Why big-box chains' embrace of in-store click-and collect leaves money on the table
Researchers from University of North Carolina-Chapel Hill and Tilburg University published a new paper in the Journal of Marketing that explores the rise of click-and-collect services and examines their most appropriate settings.
5h
Hydrogen bonds may be key to airborne dicamba
Dicamba has been the subject of lawsuits across the country, with landowners contending the herbicide, when used by neighboring growers, has blown onto their property, killing valuable non-resistant crops.
5h
Ny bog viser Muhammads mange facetter
I sin nye bog "Muslimernes Muhammad – og alle andres" fortæller professor Jakob Skovgaard-Petersen…
5h
The first duckbill dinosaur fossil from Africa hints at how dinosaurs once crossed oceans
The first fossils of a duckbilled dinosaur have been discovered in Africa, suggesting dinosaurs crossed hundreds of kilometres of open water to get there.
5h
New research traces the origins of trench fever
First observed among British Expeditionary Forces in 1915, trench fever sickened an estimated 500,000 soldiers during World War I. Since then, the disease has become synonymous with the battlefield. But now, new research from an international team of scientists has uncovered evidence challenging this long-held belief.
5h
The biggest trees capture the most carbon: Large trees dominate carbon storage in forests
Older, large-diameter trees have been shown to store disproportionally massive amounts of carbon compared to smaller trees, highlighting their importance in mitigating climate change, according to a new study in Frontiers in Forests and Global Change. Researchers examined the aboveground carbon storage of large-diameter trees (>21 inches or >53.3 cm) on National Forest lands within Oregon and Wash
5h
Oslo får de første automatiske gadefejere
Autonom gademaskine fejer, opsamler visne blade, spuler og desinficerer. Snart kører maskinerne i selvstyrende flokke.
5h
The Somali man who has a scorpion named after him
Somali environmentalist Ahmed Ibrahim Awale hopes it will inspire African researchers.
5h
Extend scheme for cosy homes, green groups say
A coalition of environmentalists want a scheme offering home insulation grants extended to 2030.
6h
Astronomisk gåta i blixtbelysning
De mystiska radioblixtarna som har gäckat astronomer i åratal tycks kunna komma från magnetarer: kraftigt magnetiska neutronstjärnor. Det avslöjar den första radioblixt som har upptäckts med ursprung i vår egen galax. Den var mycket starkare än någon liknande händelse som fångats upp. – Den skulle vara synlig från en annan galax, och då skulle den se ut precis som de radioblixtar vi har sett tidig
6h
7h
Under pressure: why athletes choke
What makes an elite sports star suddenly unable to do the very thing they