One of the biggest questions in evolution is when and how major groups of animals first evolved. The rise of tetrapods (all limbed vertebrates) from their fish relatives marks one of the most important evolutionary events in the history of life. This "fish-to-tetrapod" transition took place somewhere between the Middle and Late Devonian (~400-360 million years ago) and represents the onset of a ma
Bulking Season A team of scientists found an unusual trick for growing bigger, heartier crops: inserting a human gene related to obesity and fat mass into plants to supersize their harvest. Splicing potatoes with the human gene that encodes a fat-regulating protein called FTO, which essentially alters the genetic code to rapidly mass-produce proteins, made otherwise identical potato plants grow c
ECE Ph.D. student Ayush Pandey details the research led by Prof. Zetian Mi on using high efficiency ultraviolet light emitting diodes to sterilize pathogens. This research, "High-efficiency AlGaN/GaN/AlGaN tunnel junction ultraviolet light-emitting diodes," won the 2020 Editor-in-Chief Choice Award from Photonics Research.
For many meat eaters, summer barbecues wouldn't be the same without the mouthwatering aroma of burgers cooking on the grill. But many people are now open to trying plant-based alternatives, as long as they closely resemble the taste, odor, appearance and texture of real beef. Now, researchers report that the aromas of a couple of plant-based burgers come close to the real deal when they are cookin
Mosquitos spread viruses that cause potentially deadly diseases such as Zika, dengue fever and yellow fever. New U.S. Army-funded research uses gene editing to render certain male mosquitoes infertile and slow the spread of these diseases.
Tyrannosaurus rex was not just a huge beast with a big bite, it had nerve sensors in the very tips of its jaw enabling it to better detect—and eat—its prey, a new study published in the peer-reviewed journal Historical Biology today finds.
Scientists studying two different configurations of bilayer graphene—the two-dimensional (2D), atom-thin form of carbon—have detected electronic and optical interlayer resonances. In these resonant states, electrons bounce back and forth between the two atomic planes in the 2D interface at the same frequency. By characterizing these states, they found that twisting one of the graphene layers by 30
A predator doesn't need to have the quickest speed or reflexes to catch a bird. In a paper publishing August 23 in the journal Current Biology, researchers report the first documented evidence of a tortoise going in for the kill: biting the head of, killing, and eating a tern chick. This is the first time such behavior has been captured on camera, and it's likely not the only case of tortoise bird
After vaccination, antibody levels can help predict how much protection a COVID-19 shot offers, scientists are learning. The finding could speed up the development of future vaccines. (Image credit: Britta Pedersen/dpa/picture alliance via Getty Images)
Zoomer Fashion The world as we know it is going to keep getting hotter, thanks to the largely unchecked progression of climate change around the world. So it's time that we actually start dressing for it, according to a team of scientists. Researchers from a variety of Chinese universities have created what they call "metafabric," which Wired reports is a textile woven with nanoparticles that ref
Are you someone who enjoys the unsolicited opinions of strangers and acquaintances? If so, I can't recommend cancer highly enough. You won't even have the first pathology report in your hands before the advice comes pouring in. Laugh and the world laughs with you; get cancer and the world can't shut its trap. Stop eating sugar; keep up your weight with milkshakes. Listen to a recent story on NPR;
Since early summer, three pandemic clocks have been ticking. The first pertains to the coronavirus's Delta variant, which has sent daily case numbers soaring more than tenfold since June. The second clock is more predictable: The school year starts, as it always does, in late August or early September. The third clock counts down to the authorization of vaccines for children under 12 , which was
The opening scenes of Shang-Chi and the Legend of the Ten Rings paint a rich portrait not of the film's titular hero but of its villain. Played by the Hong Kong superstar Tony Leung, Wenwu (a.k.a. the Mandarin) is the owner of the magical Ten Rings. As such, he's an immortal man burdened with, as the saying goes, the great responsibility that comes with great power. He wields his abilities brutal
T he United States never understood Afghanistan. American planners thought they knew what the country needed, which was not quite the same as what its people wanted. American policy was guided by fantasies; chief among them was the idea that the Taliban could be eliminated and that an entire culture could be transformed in the process. In an ideal world, the Taliban wouldn't exist. But it does ex
In 1974, Stephen Hawking calculated that black holes' secrets die with them. Random quantum jitter on the spherical outer boundary, or "event horizon," of a black hole will cause the hole to radiate particles and slowly shrink to nothing. Any record of the star whose violent contraction formed the black hole — and whatever else got swallowed up after — then seemed to be permanently lost. Hawking'
Big wildfires create their own weather, and can even spawn tornadoes swirling with smoke and flame. Researchers are trying to determine how often they occur. (Image credit: Erica Zurek/Montana Public Radio)
F or the past 10 days, thousands of private citizens have been working around the clock, through informal networks of friends and colleagues, to organize evacuation flights from Afghanistan to countries like Albania and Kyrgyzstan, and to help Afghans get their name on passenger manifests and safely reach the Kabul airport. This effort, which is largely taking place on WhatsApp and Signal, has be
EV Vulnerabilities Electric car charging stations and smart home chargers are extremely vulnerable to cyberattacks, according to new research by security consulting firm Pen Test Partners . The researchers tested six brands of home chargers as well several publicly available charging networks and found some glaring flaws in most of them — symptomatic of a serious gap in consumer protection regula
Amazing View Russian cosmonaut Oleg Novitskiy has shared an amazing video taken on board the International Space Station's latest addition, Russia's Multipurpose Laboratory Module known as "Nauka." It's a rare glimpse of the module's interior following an extremely fraught launch and docking with the orbital outpost. Another short video of how we opened the window of the #Nauka Multipurpose Labor
When we talk about amazing geological features, we often limit ourselves to those on Earth. But as a geologist, I think that's crazy—there are so many structures on other worlds that can excite and inspire, and that can put processes on our own planet into perspective.
The biggest roadblock to President Joe Biden's domestic agenda at the moment isn't centrist Senator Joe Manchin or a progressive like Representative Alexandria Ocasio-Cortez—it's a third-term New Jersey Democrat who most Americans have never heard of: Representative Josh Gottheimer. For Democrats to have any hope of passing their transformative, $3.5 trillion economic package—a proposal that woul
Sick Day According to NASA, Mark Vande Hei, an current crew member on board the International Space Station, has suffered a "minor medical issue." A scheduled extravehicular activity (EVA) or space walk had to be delayed as a result, CNN reports . NASA has also said that the issue "is not a medical emergency." Walk It Off The EVA was originally planned for Tuesday, but will now have to be resched
Using the powerful 570-megapixel Dark Energy Camera (DECam) in Chile, astronomers just ten days ago discovered an asteroid with the shortest orbital period of any known asteroid in the Solar System. The orbit of the approximately 1-kilometer-diameter asteroid takes it as close as 20 million kilometers (12 million miles or 0.13 au), from the Sun every 113 days. Asteroid 2021 PH27, revealed in image
In the coming weeks, Congress may pass one of the most important climate policies in US history. The $3.5 trillion budget plan includes a provision known as the Clean Electricity Payment Program, which would use payments and penalties to encourage utilities to increase the share of electricity they sell from carbon-free sources each year. If it works as hoped, the legislation would ensure that th
Ocean deoxygenation during the Mesozoic Era was much more rapid than previous thought, with CO2 induced environmental warming creating ocean 'dead zones' over timescales of only tens of thousands of years.
More than 10 percent of our genome is made up of repetitive, seemingly nonsensical stretches of genetic material called satellite DNA that do not code for any proteins. In the past, some scientists have referred to this DNA as "genomic junk."
Scientists are investigating whether increased protein intake could be an important and overlooked component in helping ICU patients avoid long-term disability — which many say is caused by severely reduced muscle mass. But some question whether simply adding more protein to patients' diets will be enough.
There's growing awareness – and concern – about declining birthrates in the U.S. and other countries around the world. Falling birth rates are usually seen as a sign of societal decline, a nation's diminishing power, and the eclipse of marriage and family values. Rarely are they put into any kind of historical context. But birthrates are cyclical and have gone up and down throughout history . Whi
Pest Control Scientists working for the US Army Research Laboratory found a new way to genetically alter the mosquito Aedes aegypti in a way that can decimate wild populations, hopefully keeping diseases like Zika or dengue from spreading. Not only did the genetic alteration render males infertile, but those male mosquitoes could actually transfer that infertility to the female population by mati
Using XMM-Newton and Swift space telescopes, Chinese astronomers have inspected short-term X-ray variability of a tidal disruption event known as Swift J1644+57. Results of the study, published August 12 on the arXiv pre-print server, yield important information regarding the properties of this TDE.
Researchers at Princeton University have built the world's smallest mechanically interlocked biological structure, a deceptively simple two-ring chain made from tiny strands of amino acids called peptides.
T his morning, the FDA granted full approval to the Pfizer vaccine for use in people 16 and older. Although "the vaccine approval was the fastest in the agency's history," as The Washington Post noted , serious side effects have proved extremely rare. Nevertheless, anti-vaccine activists—and the politicians and pundits pandering to them—have criticized the accelerated approval process as rushed.
Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant. At least 70% of the very-high-energy gamma rays emitted from cosmic rays are due to relativistic protons, according to the novel imaging analysis of radio, X-ray, and gamma-ray radiation. The acceleration site of protons, the main components of cosmic rays, has bee
Despite their terrible human costs—or perhaps because of them—wars are often times of technological innovation. The Napoleonic Wars brought us canned goods; the American Civil War drove the development of submarines. The Second World War, meanwhile, began with biplanes, cavalry charges, and horse-drawn wagons but ended with radar, V2 rockets, jet fighters, and atomic bombs. (Perhaps most fundamen
Thanks mainly to the rise of satellite megaconstellation projects like OneWeb and SpaceX's Starlink, the American Astronomical Society suggests , it's possible we may see more than 100,000 satellites orbiting Earth by 2030—a number that would simply overwhelm our ability to track them all. Experts have repeatedly called for a better framework for managing space traffic and preventing a future pla
On Saturday, an intense thunderstorm stalled over central Tennessee, dropping a record-setting 17 inches of rain in a 24-hour period. The heavy rainfall filled rivers and streams and unleashed dangerous flash floods, wiping out roads and structures. At least 21 people were killed, and another 40 are listed as missing. Rescue and recovery efforts are still under way, many of them focused on the ha
Scientists at the University of Southampton have discovered that extensive chains of volcanoes have been responsible for both emitting and then removing atmospheric carbon dioxide (CO2) over geological time. This stabilized temperatures at Earth's surface.
Researchers are worried the ban on preprint materials in grant proposals will diminish the nation's scientific potential The Australian Research Council says it is "looking into" a controversial rule change that affects academic grant applications, amid growing political pressure and criticism from the Australian research community. More than 450 "concerned members of the Australian research comm
Anthracene is a solid organic compound derived from coal-tar distillation. Apart from its use as a red dye, it has also been used in the field of nanographene material design, as it exhibits excellent electronic and light-emitting properties. One of its derivatives, called 9-phosphaanthracene, has been widely studied for decades due to its radical reactivity. This activity grants 9-phosphaanthrace
Speed Demon A team of researchers led by Scott Sheppard, a staff scientist at the Carnegie Institution of Science, has discovered the fastest-orbiting asteroid in the solar system. The tiny space rock, just 1 kilometer across and dubbed 2021 PH27, travels around the Sun in only 113 Earth days. It's the shortest orbital period of any known celestial object, except for Mercury, which circles the Su
Mathematicians at the Center for Advanced Mathematics for Energy Research Applications (CAMERA) at Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a mathematical algorithm to decipher the rotational dynamics of twisting particles in large complex systems from the X-ray scattering patterns observed in highly sophisticated X-ray photon correlation spectroscopy (XPCS) experiments.
Core samples taken from a stand of old-growth Douglas fir trees in the South Beach area just south of Newport showed reduced growth following the 9.0 earthquake and subsequent tsunami that struck the Pacific Northwest in 1700.
US officials have announced that they will prepare to offer booster shots of the COVID-19 vaccine starting the week of September 20 for healthy, immunized people. The boosters will be available to individuals eight months after the completion of their second dose. Federal health authorities first announced in mid-August that they would allow immunocompromised people to get special, additional dos
An interplanetary mission led by the University of California, Berkeley, to put two satellites—dubbed "Blue" and "Gold"—into orbit around Mars has been officially authorized to prepare for launch in October 2024.
In a finding that could help pave the way toward cleaner fuels and a more sustainable chemical industry, researchers have used machine learning to predict how the compositions of metal alloys and metal oxides affect their electronic structures.
A nationwide US study has shown that the rate of opioid-related cardiac arrests has steeply risen and is now on par with the rate of cardiac arrest from other causes. Opioid use disorder, which includes dependence and addiction, affects more than two million people in the US, while opioid overdose is the leading cause of death for those aged 25 to 64 years. This study examined the trends and outco
Magnesium rechargeable batteries show immense promise for a greener future because of their energy density, safety, and cost. But the lack of high-performance cathode materials has impeded their development. Now, a research team has developed liquid-sulfur/sulfide composite cathodes that enable high-rate magnesium batteries.
The calories that children and adolescents consumed from ultraprocessed foods jumped from 61% to 67% of total caloric intake from 1999 to 2018, according to a new study Ultraprocessed foods are ready-to-eat or ready-to-heat items often high in added sugar, sodium, and carbohydrates, and low in fiber, protein, vitamins, and minerals. They typically contain added sugars, hydrogenated oils, and flav
Over the last two decades, scientists have found ice in many locations on Mars. Most Martian ice has been observed from orbital satellites like NASA's Mars Reconnaissance Orbiter. But determining the grain size and dust content of the ice from that far above the surface is challenging. And those aspects of the ice are crucial in helping scientists determine how old the ice is and how it was deposi
Researchers from Aston University have found that the use of swear words in Britain have declined by more than a quarter since the 1990s. Dr. Robbie Love, based in the College of Business and Social Sciences, looked at how swearing changed in casual British English conversation between 1994 and 2014.
The eastern half of the U.S is one of the principal hot spots for severe thunderstorm activity, especially tornadoes, globally. The standard explanation for this outcome is the combination high terrain to the west and the Gulf of Mexico to the south.
Researchers have developed a lightweight optical system for 3D inspection of surfaces with micron-scale precision. The new measurement tool could greatly enhance quality control inspection for high-tech products including semiconductor chips, solar panels and consumer electronics such as flat panel televisions.
Sjögren's syndrome is an autoimmune disease that attacks the tear duct and salivary glands, leading to patients suffering unbearable dry eyes and mouth. To date, treatment options have been limited. But this may change thanks to a recently developed mouse model that will help explain the pathogenic mechanisms behind the disease.
A study found that as meltwater lakes on the surface of Greenland's ice sheet rapidly drain, they create water blisters between the ice and the bedrock that scientists could use to understand the hydrological network below Greenland's thick inland ice sheet. These networks could affect the stability of the ice sheet as Earth's climate warms.
A new way to control the motion of bubbles from researchers at Columbia Engineering might one day help separate useful metals from useless dirt using much less energy and water than is currently needed.
The eye size of birds can reveal broad patterns of their biology and behavior, including where they live, what they eat, and how they hunt, according to a new study. The findings providing a potential roadmap for future conservation efforts. Birds have some of the largest eyes relative to their bodies of all vertebrate land animals, second only to frogs. With a limited range of taste and smell, b
Delays Confirmed NASA administrator Bill Nelson has confirmed that Blue Origin's lawsuit against the agency will result in "further delay" for NASA's mission to return astronauts to the lunar surface. "The lawyers at the Justice Department are the ones that handle the case," Nelson told SpaceNews ' Jeff Foust in an interview on Friday after being asked if he was worried the lawsuit will delay NAS
Nature, Published online: 23 August 2021; doi:10.1038/d41586-021-02312-0 Massive study finds that genetic markers associated with same-sex encounters might aid reproduction. But some scientists question the conclusions.
Most Americans support COVID-19 vaccine mandates for crowded events, air travel, health care professionals, and workers who interact with the public, according to a new poll. While worries about the COVID-19 virus have grown as cases of the Delta variant rise throughout the country, precautionary measures including mask wearing and social distancing have not returned to the levels seen before vac
Researchers have developed a new type of laminate that changes color as soon as the material is deformed. This way, the materials researchers can kill two birds with one stone: a lightweight composite material that inspects itself.
Experts have assessed the risks and potential benefits associated with deploying autonomous vehicles (AVs) on U.S. roads and predicts that the benefits will substantially outweigh potential harms — but only if the AVs are well regulated.
A preclinical study has analyzed the interactions of the lipid mediator sphingosine-1-phosphate (S1P) in the spleen and heart during the transition from acute to chronic heart failure. Using a mouse model of heart failure, the researchers discovered new mechanisms to help define how the spleen and heart coordinate physiological inflammation in cardiac repair.
The Greeks believed that geometry and philosophy were inextricably linked. The mathematician Thales is credited with several geometrical propositions. It is plausible that his investigations into triangles led him to a visual proof of the Pythagorean theorem decades before Pythagoras. Pythagoras or his followers might have proved the theorem subsequently. Among my colleagues working in ancient sc
Scientists have harnessed the natural ability of wood to faintly glow to develop a new sustainable phosphorescent material that could potentially be used in a wide number of applications, from medical imaging and optical sensing to 'glow in the dark' dyes and paints.
For years, researchers studying marine life in the wild would occasionally come across animals—such as dolphins, swordfish, leatherback sea turtles, whales, white sharks and even humans—with oddly shaped plugs of tissue taken out of their bodies. Those fresh bites and scars were almost like someone took a cookie cutter and surgically removed a hunk of tissue. These bites were not only restricted t
Farmers using no-till production—in which soil never or rarely is plowed or disturbed—can reduce herbicide use and still maintain crop yields by implementing integrated weed-management methods, according to a new study conducted by Penn State researchers.
Gravitational wave scientists have designed and built an interactive science exhibit modeled on a real-life gravitational-wave detector to explain gravitational-wave science. It was developed by an international team, which includes researchers now at the OzGrav ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav).
Northwestern Medicine investigators have discovered that a subset of proteins in mitochondria of brain and heart cells are long-lived, supporting the long-term stability of mitochondrial complex architecture.
When an excise tax hike was levied on cigarettes, New York City taxi drivers who smoked were one and a half times more likely to cheat their customers by overcharging the fare than those who didn't smoke. That finding comes from forthcoming research in Accounting, Organizations, and Society.
Many natural products are complicated organic molecules. Despite this complexity, scientists are usually able to investigate them using spectroscopic techniques. However, a team of researchers has now discovered that care should be taken using Raman spectroscopy to analyze certain chiral molecules (molecules that have handedness; i.e., they can exist in two "mirror image" forms of each other). The
A research team led by Shiori Hironaka, a project assistant professor of Computer Science and Engineering at Toyohashi University of Technology, collected big data on social media in ten countries and analyzed the relationship between connections and the behaviors of people on the Internet. The researchers found that the users had the same characteristics in follow ratios, which reflect the behavi
The number of spectacled bears in Peru might be larger than suspected, a new study in Ursus suggests. A team of researchers from Gothenburg University, Martin Luther University Halle-Wittenberg (MLU) and Stony Brook University studied the population of the endangered species in Northern Peru. By identifying individuals through facial patterns, they were able to estimate the population density in t
Companies are always looking for ways to get teams to innovate more and find creative answers to problems. New research co-authored by Myeong-Gu Seo at the University of Maryland's Robert H. Smith School of Business finds one way to do so is to encourage employees to bare their feelings—both positive and negative—to team members.
Drought is one of the most prevalent environmental stress conditions globally. It may cause sudden and widespread tree mortality. Previous studies have shown that drought-induced mortality of a given species can be predicted reasonably by hydraulic traits. However, relatively little information is available regarding the vulnerability of savanna species to extreme drought.
In a year marked by record-breaking wildfires, extreme heat and unprecedented water shortages, California lawmakers say there's another—seemingly distant, but just as urgent—climate catastrophe the state cannot afford to ignore: sea level rise.
Most of us, unfortunately, will never get the chance to create our own planetary body from scratch. It's just a sad fact of life that the resources necessary to create a planet are not accessible to us normal humans. But thanks to the board game Planet , we can come as close as possible to seeing how a planet designed by us would fare in the cold vacuum of space. Players of Planet are tasked with
Mosquitoes spread viruses that cause potentially deadly diseases such as Zika, dengue fever and yellow fever. New research uses gene editing to render certain male mosquitoes infertile and slow the spread of these diseases.
A marketing journal is taking heat on social media for issuing an expression of concern over a 2019 paper that many readers believe should have been retracted — and correcting another instead of retracting it. The article now subject to an expression of concern, "Role of Ambient Temperature in Influencing Willingness to Pay in Auctions … Continue reading
Vilda djur kan utveckla ett socialt samspel med människor precis som husdjuren gör. Det visar en studie på djungelhöns – tamhönsens vilda släktingar. Forskare på SLU och Linköpings universitet lade märke till att djungelhönsen i deras försök gick fram och tittade på den forskare som de hade haft kontakt med under tidigare försök, det vill säga uppvisade ett kontaktsökande beteende. Detta är ett b
If you've ever suffered from a sore jaw that popped or clicked when you chewed gum or crunched hard foods, you may be able to blame it on your extinct ancestors. That's according to a recent study of the chewing mechanics of an ancient human relative called Homo floresiensis, which inhabited the Indonesian island of Flores before our species arrived there some 50,000 years ago.
Smoke from wildfires may have contributed to thousands of additional premature births in California between 2007 and 2012. The findings underscore the value of reducing the risk of big, extreme wildfires and suggest pregnant people should avoid very smoky air.
Four out of ten children and adolescents who were admitted with new-onset type 1 diabetes and diabetic ketoacidosis did not receive hospital treatment the same day as contacts were taken with primary care. In severe cases, a delay before hospital care begins can lead to life-threatening conditions.
Fine respiratory aerosols may play a significant role in SARS-CoV-2 transmission, researchers report. Their new findings show SARS-CoV-2 particles can be aerosolized by an infected person during talking and singing. The researchers also find that fine aerosols (less than 5 micrometers, or μm) generated from these two types of activities contain more viral particles than coarse aerosols (more than
Today, burial and cremation remain the most common ways to dispose of human corpses. However, some individuals, cultures, and companies have tried to look at death from a different perspective. From launching your remains into space to turning your ashes into a diamond, here are some of the alternatives they came up with. The startup turning human ashes into diamonds | Challengers by Freethink ww
Scientists have developed a novel way to isolate exosomes from cow's milk. Exosomes are nano-sized biological capsules that cells produce to protect and courier delicate molecules throughout the body. Harvesting them to achieve clinical-grade levels of purity, however, is a complex process.
The elephant proboscis (trunk) exhibits an extraordinary kinematic versatility as it can manipulate a single blade of grass but also carry loads up to 270 kilograms. Using motion-capture technologies developed for the movie industry, a team of scientists at the University of Geneva (UNIGE), Switzerland, demonstrates that the complex behaviors of the elephant trunk emerge from the combination of a
The highest-ever resolution imaging of an infectious prion provides the first atomic-level data of how these abnormal proteins are assembled to cause fatal neurodegenerative diseases in people and animals—and how they can be potentially targeted by new therapies.
We are collectively failing to conserve the world's biodiversity and to mobilize natural solutions to help curb global warming. A new study carried out by the Nature Map Consortium shows that managing a strategically placed 30% of land for conservation could safeguard 70% of all considered terrestrial plant and vertebrate animal species, while simultaneously conserving more than 62% of the world's
A new study in Nature Food calls attention to the need for better systems to track forced labor in food supply chains. The study—a methodological advance—reports on the development of a new scoring system that identifies the risk of forced labor for fruits and vegetables sold in the United States. It finds a high risk of forced labor, but also scattered and incomplete data sources that limit actio
Biologists have figured out how white clover, a common component of lawns, releases cyanide when its leaves suffer damage. White clover ( Trifolium repens ) got its start about 20,000 years ago when two European clover species hybridized . Its chemical defense, a response called cyanogenesis, helps deter insect pests. Research published in New Phytologist shows how white clover developed its anti
Nature, Published online: 23 August 2021; doi:10.1038/d41586-021-02265-4 The full might of a world-leading artificial-intelligence laboratory has been brought to bear on protein-structure prediction. The resulting method, AlphaFold2, promises to transform our understanding of proteins.
You take a bite out of your midday apple and it's just perfect: the right amount of crunch, juice, sweet and sour. You imagine saving its hard brown seeds and planting them in the ground. One day you'll have a whole tree producing apples just like this one. Or will you?
Iceberg A-74, approximately 1.5 times the size of Greater Paris, calved from Antarctica's Brunt Ice Shelf earlier this year. Over the last six months, it has remained close to the shelf it broke away from owing largely to ocean currents. In early August, strong easterly winds have spun the iceberg around the western tip of Brunt, brushing slightly against the ice shelf before continuing southwards
Exosomes are nano-sized biological capsules that cells produce to protect and courier delicate molecules throughout the body. The capsules are hardy enough to withstand enzymatic breakdown, as well as acidic and temperature fluctuations in the gut and bloodstream, making them a prime candidate for drug delivery.
As Tracy Schohr goes about her day, water is always on her mind. She's thinking of it as she rides an all-terrain vehicle around the pasture, looks up hay prices and weather forecasts, and collects data on grazing and invasive weeds for a scientific study.
Researchers have developed a new light-emitting memory device by integrating a resistive random-access memory with a light-emitting electrochemical cell that are both based on perovskite. The results are promising for faster data storage and reading in future electronic devices and open a new avenue of applications for perovskite optoelectronics.
Researchers have established one of the world's largest collections of living tumors from prostate cancer patients, accelerating the testing of new treatments for prostate cancer and leading to faster patient benefit.
Today's brain implants are bulky and can typically only record from one or two locations. Now researchers have shown that a network of tiny "neurograins" can be used to wirelessly record and stimulate neurons in multiple locations in rat brains. Researchers have been experimenting with brain computer interfaces (BCIs) that can record and stimulate groups of neurons for decades. But in recent year
Stream Bering Sea Gold on discovery+ ► https://www.discoveryplus.com/show/bering-sea-gold About Bering Sea Gold: In Nome, Alaska, the gold rush is on. Driven by gold fever and sometimes desperate need, miners pilot their ragtag dredges and dive with hoses to suck up gold from the bottom of the frigid, unpredictable Bering Sea. #BeringSeaGold #Discovery #Gold Subscribe to Discovery: http://bit.ly/
This jewel-bright image from the NASA/ESA Hubble Space Telescope shows NGC 1385, a spiral galaxy 68 million light-years from Earth, which lies in the constellation Fornax. The image was taken with Hubble's Wide Field Camera 3, which is often referred to as Hubble's workhorse camera thanks to its reliability and versatility. It was installed in 2009 when astronauts last visited Hubble, and 12 years
Tropical Storm Henri was downgraded to a tropical depression late Sunday after slamming into Rhode Island on the US east coast, knocking out power to thousands of Americans, uprooting trees, and bringing record rainfall.
Researchers from the University of Melbourne and University of Queensland have analysed negative attitudes towards Asian people in both the United States and Australia to better understand the factors that contribute to these prejudices.
Low and uneven turnout is a serious problem for local democracy. However, simply moving off-cycle, local elections to be held on the same day as statewide and national contests doubles voter turnout and leads to an electorate that is considerably more representative in terms of race, age, class and partisanship, according to new University of California San Diego research.
1 billion people by preventing aging and all its major diseases, such as Alzheimer's and cancer | The Telegraph" title="" src="https://external-preview.redd.it/ydiLCGdTh7G03MjCzFRzW8C2l7mq_AnOeyKwgDXzWSE.jpg?width=640&crop=smart&auto=webp&s=cc78153149910d09c19a0a04f281e368576581ca"> submitted by /u/StoicOptom [link] [comments]
Decoupled electrolysis of water is a promising strategy for peak load regulation of electricity. It can store surplus electricity in the valley time and produce hydrogen with low energy consumption in the peak time, relieving the imbalance between the generation and consumption of electricity.
A recent study conducted by Prof. John Speakman's lab at the Institute of Genetics and Developmental Biology (IGDB) of the Chinese Academy of Sciences shed a new light on the important role of gut-brown adipose tissue axis in regulating glucose metabolism.
Flavonoids found in plants and plant foods such as berries, apples, tea, wine and dark chocolate are known to offer health benefits, including some protective effects on the cardiovascular system. A study of over 900 adults in Germany evaluated the quantity and frequency of eating flavonoid-rich foods and measured bacteria in the gut microbiome to determine if there was an association with blood p
Clean drinking water is essential. Scientists at TU Wien are investigating how water quality in riverine floodplains, often used as drinking water resources, changes as a result of heavy rainfall and flooding.
Climate change leads to a significant increase in the extreme drought frequency (EDF), which has a profound impact on terrestrial ecosystems. Due to diverse patterns of precipitation and evapotranspiration in different regions of China, there are obvious temporal and spatial differences in the frequency evaluation results.
New research published by the Institute for Social Policy, Housing, Equalities Research (I-SPHERE) based at Heriot-Watt University has found that the planning process in England is reinforcing racial inequality, despite having clear potential to support the needs of ethnic minority residents.
It's a sweltering summer afternoon. I'm pushing aside tree limbs and crunching leaves to get back to the trap that I baited two hours ago with dry ice to attract ticks. When I get closer, I can see a gossamer mist hovering over a bright white cloth in the dark underbrush. Dry ice "sublimates" in the open air, going from a solid to a gaseous state. It gives off a vapor of carbon dioxide gas that's
Following the film's release in 2008, critics worried Kaufman may have finally gotten too meta for his own good. On the contrary, this confusing story about the inevitability of death contains a simple lesson about the meaning of life. Death, like birth, is one of the few things all human beings have in common. It should not be feared but contemplated. When screenwriter Charlie Kaufman was asked
On August 28, a SpaceX rocket will blast off from Cape Canaveral in Florida, carrying supplies bound for the International Space Station. But also on board will be a small satellite that represents a giant leap into space for our research program here in Western Australia.
Associate Professor Lauren Calandruccio, who specializes in auditory perception in the Department of Psychological Sciences, shared that while wearing masks is critical during this time, increased effort is required when listening to someone that is speaking with a mask. Wearing a mask while speaking can increase the effort required to hear and impact how much is actually heard.
Labs can easily make their own protein ladders—molecular rulers for estimating the sizes of proteins—for less than a penny per experiment using the newly developed, license-free "Penn State Protein Ladder system." A research team of undergraduate students led by Song Tan, Verne M. Willaman Professor of Molecular Biology at Penn State, developed the ladders to be easily used in two of the most comm
Climate-smart agriculture practices such as research-backed crop rotation, along with precise water and nutrient management, can safely and significantly suppress weeds that decrease cereal productivity, says a new study.
The World Health Organisation (WHO) recently called on countries to stop any research that might lead to the birth of genetically edited human beings. The call was made with the release of the recommendations on human genome editing.
If you think your manager treats you unfairly, the thought might have crossed your mind that replacing said boss with an unbiased machine that rewards performance based on objective data is a path to workplace happiness.
Queensland school students have reportedly been bullied after being diagnosed with COVID-19 and have struggled to return to school as a result. The Queensland Department of Education stated it hasn't heard of any bullying related to the COVID-19 outbreak. Given the nature of bullying, this isn't necessarily surprising.
Seemingly, half the world population now uses social media to share their thoughts and to experience the thoughts of others. There is no topic left unrepresented by users from opinions about technology, politics, society, celebrities, sport, music, cinema, health, war, religion, sex and beyond. Nothing is taboo.
Coastal areas are popular places to live and visit. Every summer, families load up their cars and head to the beach for a few days of relaxation. In Alabama, one destination is Dauphin Island, a small barrier island three miles south of Mobile Bay.
In the early days of my skeptical activism I and my colleagues often took on some of the classics of pseudoscience, such as UFOs, dowsing, astrology, and ghost-hunting. As a New England-based group we also focused on local pseudoscience, which means ghosts and ghost-hunting. By coincidence we had perhaps the most famous ghost hunters in the world living just a couple towns over from us, Ed and Lo
There has never been a greater need for innovative technology in cloud infrastructure. The size of the cloud computing market has grown to $264 billion, and cybersecurity is now a major priority at the highest levels of international government. Global corporations are repeatedly paying many millions of dollars to criminal hacker syndicates and worldwide damage costs are expected to soar past $26
Nature, Published online: 20 August 2021; doi:10.1038/d41586-021-02306-y Evidence-based strategies for coping with a postgraduate job search, baby bats babble like human infants and how saving the ozone layer also mitigated global warming.
Scientific Reports, Published online: 23 August 2021; doi:10.1038/s41598-021-96371-y Comparison of multicolor scanning laser ophthalmoscopy and optical coherence tomography angiography for detection of microaneurysms in diabetic retinopathy
At the start of the COVID-19 pandemic, stay-at-home orders and other restrictions drastically affected how people lived and worked, resulting in social isolation and economic instability. Now, researchers show that some people turned to a variety of drugs for relief. Using wastewater analysis, the team identified a spike in consumption of easily abused prescription opioids and anti-anxiety sedativ
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25291-2 Skyrmions are a type of topological spin texture that great potential across a wide variety of technological applications. Here, Yu et al. study the thermally driven motion of Skyrmions and find a minimum temperature gradient for the motion of skyrmions two orders of magnitude smaller than for domain walls.
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-24842-x Rapid growth of highly crystalline Covalent organic framework (COF) materials remains challenging. Here, the authors accelerate single-crystal polymerization using supercritical CO2 and realize the fabrication of two-dimensional COF single crystals within several minutes.
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25281-4 Changes in AMPAR localization can control the strength of synaptic transmission. Here, the authors show that the interactions of TARP γ8 and the AMPAR N-terminal domain work together to regulate receptor accumulation and positioning at the post-synapse of mouse hippocampal CA1 neurons.
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25425-6 Bacterial surface adhesion proteins are characterized by unusual mechanical properties. Here, the authors use atomic force microscopy-based technique to study a surface-anchoring protein Cpe0147 from Clostridium perfringens and show that an ester bond can withstand considerable mechanical forces and prevent co
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25407-8 Additives have been widely used for passivating defects in perovskite semiconductors, yet the role of additive and their interaction is not clear. Here, the authors reveal an additive-assisted crystal formation in FAPbI3 perovskite by tracking the chemical interaction in the precursor solution and crystallogra
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25063-y Stacking fault removal and improvement in CdTe solar efficiency is known to be correlated, yet the nature of the relationship is not well-established. Here, the authors explain the passivation process responsible for this improvement, and also elucidate the associated stacking fault removal mechanism.
Nature Communications, Published online: 23 August 2021; doi:10.1038/s41467-021-25377-x Identifying causal variants and genes is an essential step in interpreting GWAS loci. Here, the authors investigate a kidney disease GWAS locus with functional genomics data, CRISPR editing and mouse experiments to identify DPEP1 and CHMP1A as putative kidney disease genes via ferroptosis.
Tropical Storm Henri slammed into Rhode Island on the US east coast Sunday, knocking out power to thousands of Americans, uprooting trees and bringing record rainfall before weakening as it moved across New England.
Scores of firefighters backed by water-dropping aircraft battled a forest fire that broke out early Monday on the southern part of Greece's Evia island, less than two weeks after an inferno decimated its northern part.
Få makthavare har genom århundraden lyckats kontrollera Afghanistans höga berg och vidsträckta dalar och slätter. Inte heller talibanerna. Bakom deras nyvunna makt finns till viss del ett folkligt stöd, men också avsaknaden av ett enhetligt nationellt stöd för den stat det internationella samfundet försökt bygga.
A few weeks ago, the Federation of State Medical Boards, which itself does not have any regulatory power but advocates for state medical boards, issued a statement that physicians who spread COVID-19 misinformation should be subject to disciplinary measures. Unfortunately, a recent report found that not a single US physician has had action taken against their medical license for doing this. Why?
Attacken mot World Trade Center, 11 september 2001(c) 2001 Michael Foran (Creative Commons 2.0) En konspirationsteori är tron på att flera personer eller grupper ägnar sig åt något moraliskt tvivelaktigt … Continued Inlägget dök först upp på Vetenskap och Folkbildning .
There's a lot to learn in any given lifetime, yet often concerns about safety and privacy can get in the way of exploring the world. The CuriosityStream + KeepSolid VPN Unlimited Lifetime Subscription Bundle helps you do both at once, and for a limited time, you can get a $10 store credit on top of more than $250 in savings. The Best Documentaries Launched by John Hendricks, one of the visionarie
How the daily lives of a rich person will be in 2050, the opportunities, trips and experiences and objects that they will have and that they will be able to enjoy. I'm not talking about someone ultra rich with billions or hundreds of millions, but someone who has at least a fortune of a few million dollars, what will the life and daily life of the rich be like in 30 years? submitted by /u/Augustu
App design is a complex discipline, and bad apps can have frightening consequences . Whether you're looking to change careers, build apps as part of your job, or just want to understand how the small programs we use daily work, the 2021 Learn to Code with React Certification Bundle will show you how apps are built the right way. It's currently on sale for only $24.99. Learning React React is a Ja
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.