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Scientists warn of new Covid variant with high number of mutations
The B.1.1.529 variant was first spotted in Botswana and six cases have been found in South Africa Coronavirus – latest updates See all our coronavirus coverage Scientists have warned that a new Covid variant which carries an "extremely high number" of mutations may drive further waves of disease by evading the body's immune defences. The number of cases confirmed by genomic sequencing is very sma
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The System Only Worked Because It Was Pushed
The men who killed Ahmaud Arbery will not get away with it. Yet the most surprising aspect of the trial is not the verdict, but the fact that the trial happened at all. On Wednesday, a Georgia jury convicted Travis McMichael; his father, Gregory McMichael; and their friend William Bryan of felony offenses after the trio chased down and then shot Arbery in Brunswick, Georgia, in February of last y
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Even Health-Care Workers With Long COVID Are Being Dismissed
Before she caught COVID-19 at a wedding in March 2020, the physician associate spent her days diagnosing and treating people; after she was infected, she turned to her own colleagues for that same care. "At first," she told me, "I felt a kinship with them." But when her tests started coming back negative, her doctors began telling her that her symptoms—daily migraines, unrelenting vertigo, tinnit
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South Africa to be put on England's travel red list over latest Covid variant
Variant causing concern because of 'extremely high' number of mutations feared present across South Africa Coronavirus – latest updates See all our coronavirus coverage South Africa will be placed under England's red list travel restrictions after scientists raised the alarm over what is thought to be the worst Covid-19 variant ever identified. Hundreds of people who have recently returned from S
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What do we know about the new 'worst ever' Covid variant?
UK places South Africa on red travel list over B.1.1.529 variant picked up by scientists in country South Africa to be put on England's travel red list See all our coronavirus coverage What is the new variant and why is it a concern? Scientists have detected a new Covid-19 variant called B.1.1.529 and are working to understand its potential implications. About 50 confirmed cases have been identif
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New coronavirus variant in South Africa raises concern
The World Health Organization is holding an emergency meeting on Friday to review the variant. While it's too soon to tell exactly how the new variant functions, virologists are rushing to learn more. (Image credit: Rajesh Jantilal /Getty Images)
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Astronomers discover ancient brown dwarf with lithium deposits intact
Brown dwarfs, also known as "coffee colored dwarfs" or "failed stars" are the natural link between stars and planets. They are more massive than Jupiter but now sufficiently to burn hydrogen, which is the fuel the stars use to shine. For that reason these substellar objects were not observed until observers detected them in the mid 1990's. They are particularly interesting because it was predicted
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Electrons set the stage for neutrino experiments
Neutrinos may be the key to finally solving a mystery of the origins of our matter-dominated universe, and preparations for two major, billion-dollar experiments are underway to reveal the particles' secrets. Now, a team of nuclear physicists have turned to the humble electron to provide insight for how these experiments can better prepare to capture critical information. Their research, which was
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A new artificial material mimics quantum-entangled rare earth compounds
Physicists have created a new ultra-thin, two-layer material with quantum properties that normally require rare earth compounds. This material, which is relatively easy to make and does not contain rare earth metals, could provide a new platform for quantum computing and advance research into unconventional superconductivity and quantum criticality.
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We might not know half of what's in our cells, new AI technique reveals
Most human diseases can be traced to malfunctioning parts of a cell—a tumor is able to grow because a gene wasn't accurately translated into a particular protein or a metabolic disease arises because mitochondria aren't firing properly, for example. But to understand what parts of a cell can go wrong in a disease, scientists first need to have a complete list of parts.
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A doubly magic discovery
A team of researchers, including scientists from the National Superconducting Cyclotron Laboratory (NSCL) and the Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU), have solved the case of zirconium-80's missing mass.
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Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot
Scientists have developed new materials for next-generation electronics so tiny that they are not only indistinguishable when closely packed, but they also don't reflect enough light to show fine details, such as colors, with even the most powerful optical microscopes. Under an optical microscope, carbon nanotubes, for example, look grayish. The inability to distinguish fine details and difference
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Researchers study factors that impact degree of pleasure derived from hugs
A small team of researchers at the University of London has attempted to measure the factors that influence the amount of pleasure a person receives from hugging another person. In their paper published in the journal Acta Psychologica, the group describes two separate experiments they conducted to learn more about the experience of hugging, at least in the U.K.
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Taking it easy as you get older? Wrong
A team of evolutionary biologists and biomedical researchers lay out evolutionary and biomedical evidence showing that humans, who evolved to live many decades after they stopped reproducing, also evolved to be relatively active in their later years. The researchers say that physical activity later in life shifts energy away from processes that can compromise health and toward mechanisms in the bo
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Novavax expected to be approved as fourth Covid vaccine in UK
Trials show the protein-based jab causes fewer side-effects – and hundreds of British jobs depend on it Coronavirus – latest updates See all our coronavirus coverage Pfizer, AstraZeneca, Moderna. Britons have become so accustomed to the three Covid vaccines available in the UK that most have forgotten about another jab, Novavax – even though the government has ordered 60m doses and hundreds of Br
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The US Military Just Created a Major New Group to Study UFOs
Acronym City The US Department of Defense is ramping up its efforts to see if the truth is really out there with a new task force dedicated to studying UFOs. The group, dubbed the Airborne Object Identification and Management Synchronization Group (AOIMSG), was announced on Tuesday via a DoD press release . Its mission will be to "detect, identify and attribute objects of interests" spotted in mi
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New Zealand to reopen borders to vaccinated visitors from new year
Border will first open to New Zealand citizens coming from Australia, then from the rest of the world, and finally to all other vaccinated visitors from April See all our coronavirus coverage New Zealand has announced it will reopen its borders to vaccinated visitors in the opening months of 2022, for the first time since prime minister Jacinda Ardern announced their snap closure in the first mon
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Elon Musk Encourages People to Ditch Crypto Exchanges Like Binance
Tesla CEO Elon Musk took a stance against cryptocurrency exchanges in a Tuesday tweet. On Twitter, someone mused about breaking the ecosystem's "dependence on CEXs like [B]inance and [R]obinhood," prompting another to quip "not your keys, not your crypto." Then Musk chimed in, tweeting "exactly" in reply. In simple terms, a cryptocurrency wallet contains both public and private cryptographic keys
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Nasa launches spacecraft in first ever mission to deflect asteroid
Spacecraft heads off on 6.8m-mile journey to crash into moonlet Dimorphos in test to see if asteroids can be diverted from collision with Earth A spacecraft that must ultimately crash in order to succeed lifted off late on Tuesday from California on a Nasa mission to demonstrate the world's first planetary defence system. Carried aboard a SpaceX-owned Falcon 9 rocket, the Dart ( Double Asteroid R
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US Military: Let's Shoot Down Hypersonic Missiles With Smaller Hypersonic Missiles
Glide Phase Interceptor The US Missile Defense Agency (MDA) has awarded research and development contracts to several military contractors to design a "glide phase interceptor" to take out enemy hypersonic missiles. Simply put, according to Breaking Defense , the system is intended to catch up to and destroy an offensive hypersonic missile before it enters into its descent phase, where it becomes
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This Thanksgiving, Remember the Curse of Ham
This article originally appeared in Imani Perry's newsletter, Unsettled Territory, free through November 30 and available with an Atlantic subscription after that. Sign up here . Charles Waddell Chesnutt would hardly qualify as a representative of late-19th-century Black experience. Born in 1858 in Ohio to parents who had been free people of color in Fayetteville, North Carolina, his skin was so
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It Wasn't a Hoax
If Donald Trump had been supported only by people who affirmatively liked him, his attack on American democracy would never have gotten as far as it did. Instead, at almost every turn, Trump was helped by people who had little liking for him as a human being or politician, but assessed that he could be useful for purposes of their own. The latest example: the suddenly red-hot media campaign to en
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Walmart Removes Listing for Kids' Toy That Sings About Cocaine
Caustic Cactus Ania Tanner, a grandmother from Ontario, Canada, was shocked when an innocent-looking dancing cactus toy she bought for her granddaughter at Walmart started swearing and singing about doing cocaine in Polish, CTV News reports . "This toy uses swear words and talking about cocaine use," Tanner told the broadcaster. "This is not what I ordered for my granddaughter." Unsurprisingly, W
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JPMorgan's Yelp Page Bombed with 1-Star Reviews After Elon Tweet
Review Bombed Never underestimate the power of having your own personal Stan Army. After being sued by JPMorgan for his infamous 420 tweet , Tesla CEO Elon Musk joked about giving the bank a one-star review on Yelp . That's when his most ardent fans decided to bombard the bank's Yelp page with bad reviews, as first spotted by Insider . "One star only for their frivolous lawsuits against their bus
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The Loss at the Heart of Guy Fieri's Entertainment Empire
In 2007, in one of the first episodes of Diners, Drive-Ins and Dives , Guy Fieri visited Patrick's Roadhouse, a railway-station-turned-restaurant in Santa Monica, California. The diner's chef, Silvio Moreira, walked Fieri through the preparation of one of Patrick's most notable dishes, the Rockefeller—a burger topped with mushrooms, sour cream, jack cheese, and … caviar. Fieri, looking playfully
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What are carbohydrates?
Carbohydrates — one of the basic food groups — are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. They are important to a healthy diet.
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The Pandemic Is Ending With a Whimper
Perhaps you've figured this out already: The pandemic will not have a discrete end . The coronavirus will not raise a white flag. There will be no peace treaty, no parade, no announcement from the CDC that the United States is done worrying about COVID. You will not get closure. The signs remain too mixed. The virus continues to spread, even as widening vaccine eligibility, booster shots, and imp
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America's Pandemic Star Loses Some Luster
I s Vermont the envy of America no more? The state long hailed for its pandemic response is experiencing one of the most intense COVID-19 surges in the country. Cases are twice as high as they've been at any other point. Hospitalizations are up sharply as well, confounding hopes that Vermont's best-in-the-nation vaccination rate would protect its people from the Delta wave. The resurgence of the
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How Lincoln Turned Regional Holidays Into National Celebrations
Before the presidency of Abraham Lincoln, Christmas and Thanksgiving reflected an intense regional divide. Thanksgiving was historically associated with America's so-called Puritan North and Christmas with the Cavalier South. Lincoln, who was rooted in early Puritan New England on his father's side and the Cavalier Virginia planting class on his mother's, combined a deep moral commitment to liber
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Australia's Barrier Reef erupts in color as corals spawn
Australia's Great Barrier Reef is spawning in an explosion of color as the World Heritage-listed natural wonder recovers from life-threatening coral bleaching episodes in 2016, 2017 and last year. (Image credit: Gabriel Guzman/AP)
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SpaceX Launches NASA Battering Ram to Crash Into Giant Asteroid
Asteroid Deflector A test that could lead to preventing our extinction from a deadly asteroid has finally launched. NASA — with the help of a SpaceX Falcon 9 rocket — launched its Double Asteroid Redirection Test (DART) spacecraft on Tuesday night . The craft successfully launched from the Vandenberg Space Force Base in California, according to CNN , with the Falcon 9 booster landing back on Eart
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Researchers Defeat Randomness to Create Ideal Code
Suppose you are trying to transmit a message. Convert each character into bits, and each bit into a signal. Then send it, over copper or fiber or air. Try as you might to be as careful as possible, what is received on the other side will not be the same as what you began with. Noise never fails to corrupt. In the 1940s, computer scientists first confronted the unavoidable problem of noise. Source
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The Lab-Leak Theory Meets Its Perfect Match
The evolutionary virologist Michael Worobey is trying to bring the pandemic-origins debate back to where it started : with the notion that the coronavirus made the jump to humans at the Huanan seafood market, in Wuhan, China. Last week, he argued in Science that, contrary to official timelines of infection, the "first known" patient was a market vendor selling shrimp. For Worobey, it's telling—to
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The End of Trust
Albert Tercero M anufacturer inventories . Durable-goods orders. Nonfarm payrolls. Inflation-adjusted GDP. These are the dreary reportables that tell us how our economy is doing. And many of them look a whole lot better now than they did at their early-pandemic depths. But what if there's another factor we're missing? What if the data points are obscuring a deepening recession in a commodity that
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Women at higher risk of miscarriage to be offered hormone drug by NHS
Charities say Nice's decision to endorse progesterone for some cases in England will help save babies' lives Women at a higher risk of miscarriage in England are to be offered a hormone drug under new NHS guidelines. The National Institute for Health and Care Excellence (Nice) has published updated guidance on miscarriage that says certain women can be offered progesterone to help prevent pregnan
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Find vet before buying pets for Christmas, Britons warned
Increase in dog and cat ownership in lockdown and Brexit standards issues have led to vet shortage People who are considering buying dogs and cats for Christmas are being asked to check if they have access to a vet before they buy due to shortages caused by Brexit and Covid. The British Veterinary Association (BVA) is urging caution after a rise in demand for vets due to the increase in pet owner
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What Slavery Looked Like in the West
E arly travelers to the American West encountered unfree people nearly everywhere they went: on ranches and farmsteads, in mines and private homes, and even on the open market, bartered like any other tradable good. Unlike on southern plantations, these men, women, and children weren't primarily African American; most were Native American. Tens of thousands of Indigenous people labored in bondage
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UK public urged to get Covid booster by 11 December if eligible to avoid waning immunity
New research shows the risk of infection increases significantly six months after a second dose of the Pfizer vaccine Ministers are urging millions of Britons to get their Covid booster jab by 11 December to ensure they have "very high protection against Covid by Christmas Day" as new evidence shows the risk of infection increases with the time since the second dose. The fresh warning comes after
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What is photosynthesis?
Photosynthesis is the process used by plants, algae and certain bacteria to turn sunlight, carbon dioxide and water into food (sugars) and oxygen.
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A History Not Yet Laid to Rest
Updated at 4:10 p.m. ET on November 24, 2021. N orth America's Indigenous peoples carry a painful past. This truth was laid bare when the mass graves of hundreds of Native children who died while attending residential schools were discovered in Canada this summer. Throughout the 19th and 20th centuries, thousands of Native children in the United States and Canada were forced into assimilationist
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How to Be Thankful When You Don't Feel Thankful
" How to Build a Life " is a weekly column by Arthur Brooks, tackling questions of meaning and happiness. Click here to listen to his new podcast series on all things happiness, How to Build a Happy Life . T hanksgiving was first proclaimed as a national celebration on October 3, 1789, by President George Washington. He declared "a day of public thanksgiving and prayer to be observed by acknowled
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Battery-electric trains can deliver environmental justice, cost savings and resilience to the U.S.
Trains have been on the sidelines of electrification efforts for a long time in the U.S. because they account for only 2% of transportation sector emissions, but diesel freight trains emit 35 million metric tons of carbon dioxide annually and produce air pollution that leads to $6.5 billion in health costs, resulting in an estimated 1,000 premature deaths each year. What's more, these deaths and a
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How to Talk to Your Family About Elon Musk
If your family is anything like this reporter's, chances are you have at least one relative who thinks "that Elon Musk guy" might have some good ideas. This topic is as fraught as the SpaceX founder himself — an enigma who manages to encapsulate a ton of different identities ( troll , world's richest Iron Man , and father of six , to name a few) into one infuriatingly fascinating persona. It's ha
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The Crypto-Trading Hamster Has Died of Unknown Causes
RIP The crypto-savvy hamster known as Mr. Goxx, whose portfolio beat out some of the biggest traders, has tragically passed away. "We feared this day like no other and are truly shocked for it to happen just now," the hamster's owners lamented in a tweet this morning. "In deep sorrow, we have to announce the loss of our beloved furry friend." It's a sad day for hamster lovers and cryptocurrency e
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Why e, the Transcendental Math Constant, Is Just the Best
Last month, we presented three puzzles that seemed ordinary enough but contained a numerical twist. Hidden below the surface was the mysterious transcendental number e. Most familiar as the base of natural logarithms, Euler's number e is a universal constant with an infinite decimal expansion that begins with 2.7 1828 1828 45 90 45… (spaces added to highlight the quasi-pattern in the first… Sou
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On-chip frequency shifters in the gigahertz range could be used in next generation quantum computers and networks
The ability to precisely control and change properties of a photon, including polarization, position in space, and arrival time, gave rise to a wide range of communication technologies we use today, including the Internet. The next generation of photonic technologies, such as photonic quantum networks and computers, will require even more control over the properties of a photon.
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New breakthrough in surface-based groundwater measurement
Based on recent breakthroughs in instruments and data modeling, researchers from the Department of Geoscience and the Department of Electrical and Computer Engineering at Aarhus University have collaborated to develop an effective technology to measure groundwater accurately from the surface.
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Enhancing the workhorse: Artificial intelligence, hardware innovations boost confocal microscope's performance
Since artificial intelligence pioneer Marvin Minsky patented the principle of confocal microscopy in 1957, it has become the workhorse standard in life science laboratories worldwide, due to its superior contrast over traditional wide-field microscopy. Yet confocal microscopes aren't perfect. They boost resolution by imaging just one, single, in-focus point at a time, so it can take quite a while
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South Korea: cult whose leader 'heals' by poking eyes at centre of Covid outbreak
At least 241 people linked to religious community test positive for virus Coronavirus – latest updates See all our coronavirus coverage A little known sect led by a pastor who pokes eyes to heal is at the centre of a Covid outbreak in South Korea, as the country reported a new daily record of 4,116 cases and battles a rise in serious cases straining hospitals . In a tiny, rural church in a town o
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Energy transition in an artificial atom attained using laser light
Researchers from Basel and Bochum have succeeded in addressing an apparently unattainable energy transition in an artificial atom using laser light. Making use of the so-called radiative Auger process, they were the first team to specifically excite it. In this process, an electron falls from a higher to a lower energy level and, as a result, emits its energy partly in the form of light and partly
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Let's Talk About Brines. No, Not That Kind.
Ed Rivera-Valentín has spent quite a bit of time thinking about brines recently. The particular ratio of salt to water in the marinade. The special ingredients that can give things an extra kick. I am referring, of course, to the salty solutions that are found across our solar system, on planets and moons and even asteroids. These would be no good on a Thanksgiving turkey, but they might be one o
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Dart mission: why is Nasa crashing a spacecraft into an asteroid?
The spacecraft will travel 6.8 million miles through the solar system in an attempt to nudge moonlet Dimorphos a fraction off course Nasa is preparing to launch its $330m Double Asteroid Redirection Test (Dart) probe , testing the space agency's ability to alter an asteroid's trajectory with kinetic force. The plan is to crash a robot spacecraft into the moonlet Dimorphos at 15,000 mph and change
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NASA wants to use the sun to power future deep space missions
In August 2022, a NASA probe called Psyche will set out to explore a giant metallic asteroid called Psyche 16, to help scientists learn more about how planets form. The way Psyche reaches its target, though, will be different from typical NASA missions. Building on technology used in previous missions, including Dawn and Deep Space 1 , solar power will help propel Psyche into deep space. If that
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Philip Yancey's Message of Grace
O n a Sunday in late February 2007, Philip Yancey was driving on a remote highway near Alamosa, Colorado. As he came around an icy curve, his Ford Explorer began to fishtail; the tire slipped off the asphalt and the Explorer tumbled down a hillside. The windows were blown out; skis, boots, luggage, and a laptop computer were strewn over the snow. Yancey suffered minor cuts and bruises on his face
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Nasa delays James Webb space telescope launch after 'sudden' incident
Technicians were preparing to attach spacecraft to launch vehicle when unplanned event took place The launch of the $10bn (£7.5bn) James Webb space telescope has been delayed again , after an incident during the final preparations to place the telescope on top of its launch vehicle. The spacecraft was scheduled to be sent into orbit on 18 December but now it will not launch before 22 December . C
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A Visit to Churchill, Manitoba, During Polar-Bear Season
In northern Manitoba, Canada, the town of Churchill sits along the shore of Hudson Bay, just south of the Arctic Circle. The town has become world-famous for an abundance of polar bears, especially during the months of October and November. Carlos Osorio, a photographer with Reuters, has spent the past week in Churchill, taking photos of the bears, the town, and the frigid landscape, at a time of
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Study determines whether cultures play games that correspond to how cooperative they are
Play is important for the development of complex social, emotional, physical, and cognitive skills. Play provides young individuals with a safe space to practice new behaviors without grave repercussions. While most animals engage in play, only humans engage in rule-based games. Which kinds of games people play—competitive or cooperative—may depend on their cultural background. In a new study, pub
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Watch a Historian Eviscerate the Climate Justice Movement
Climate Colonialism An Indian historian's blistering "climate colonialism" speech at the United Nations' COP26 climate summit has gone viral as it raises questions about the United States' and Europe's destructive — and hypocritical — role the collapse of Earth's climate. "The United States [is] four, five percent of the world's population," historian and journalist Vijay Prashad told the confere
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Thanksgiving? In This Economy?
Jayson Lusk's Thanksgiving tradition, if you could call it that, is to talk with reporters about the prices of Americans' holiday groceries. The media requests "seemed to start even earlier this year than usual," Lusk, an agricultural economist at Purdue University, told me recently. "But it's a more interesting story this year." That's because the ingredients for Thanksgiving dinner are signific
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Machine learning improves Arabic speech transcription capabilities
Thanks to advancements in speech and natural language processing, there is hope that one day you may be able to ask your virtual assistant what the best salad ingredients are. Currently, it is possible to ask your home gadget to play music, or open on voice command, which is a feature already found in some many devices. If you speak Moroccan, Algerian, Egyptian, Sudanese, or any of the other dial
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Mapping lithium evolution of giant stars with LAMOST-Kepler data
Based on LAMOST and Kepler data, a new study led by astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC) has revealed evolutionary features of lithium for evolved stars, which updates our understanding about the theory of stellar structure and evolution.
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The world's biggest laser
There's a giant laser in California that's all about space and national defence, but it's not a sci-fi super-weapon – it's an amazing research tool for scientists
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The Atlantic Daily: Our Future With COVID
Coronavirus cases are on the rise again in the United States. Here's what we know. Not this again. As U.S. coronavirus cases creep upward once more, you might feel a justified sense of déjà vu. We still don't totally know where this pandemic is headed— too many variables are too hard to measure —but a second winter surge remains a distinct possibility. All that's left to do is wait and see (and,
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Earliest evidence of humans decorating jewelery in Eurasia
A new multidisciplinary study by an international team reports the discovery of an ivory pendant decorated with a pattern of at least 50 punctures, creating an irregular looping curve. The direct radiocarbon date of the ornament yields an age of 41,500 years. This result indicates that the Stajnia Cave jewelry is the oldest punctate ornament known to date in Eurasia, predating other instances of t
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Has living through Covid made me a hypochondriac? I asked some experts | Maeve Higgins
I'm doing my best to act normal, but I've become incredibly aware of other people's snuffling, coughing and wheezing. Am I vigilant – or paranoid? Like the unnamed woman Drake sings about in his 2015 hit Hotline Bling, I've been wearing less – at least metaphorically – and going out more. Apparently she started to behave that way ever since Drake left the city. Before that, he laments, she "used
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Russia launches new docking module to ISS
A Russian Soyuz rocket carrying the new Prichal docking module for the International Space Station blasted off from the Baikonur cosmodrome in Kazakhstan on Wednesday, the Roscosmos space agency said.
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Modeling carbon capture via mineral trapping
Scientists at the University of Tsukuba used a sophisticated set of experimental tests, including synchrotron X-ray scattering and quantum computer modeling, to study the effect of temperature on the structure of magnesium carbonate. This work may lead to more efficient carbon capture technologies that lock carbon dioxide inside rocks as a way to combat climate change.
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Hubble spots a swift stellar jet in Running Man Nebula
A jet from a newly formed star flares into the shining depths of reflection nebula NGC 1977 in this Hubble image. The jet (the orange object at the bottom center of the image) is being emitted by the young star Parengo 2042, which is embedded in a disk of debris that could give rise to planets. The star powers a pulsing jet of plasma that stretches over two light-years through space, bending to th
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Group's second paper on potential treatments for COVID-19 is retracted
A group of researchers in Egypt have lost a second paper on possible treatments for Covid-19 after questions were raised about the legitimacy of their trial findings — and additional retractions might be coming soon. As we reported in September, the group lost an article in Scientific Reports about a purported trial comparing favipiravir and … Continue reading
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Sun compass on demand
Monarch butterflies are famous for their annual long-distance migration, which takes them over several thousand kilometers from the north of the USA to their overwintering habitat in central Mexico. On their migration, the conspicuously orange-black-white colored butterflies use sun information as main orientation reference.
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AstraZeneca to run more clinical trials in people's homes to improve diversity
Experts say shifting data collection to the home may break down barriers to participation in research AstraZeneca is to let more people take part in clinical trials from the comfort of their own homes in an attempt to increase the diversity of participants. Recruiting volunteers to clinical trials can be difficult, but they are a crucial step in the development of new drugs, tests, devices and ot
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Using the principle behind coffee ring effect in quantum dot arrays
If spilled coffee is not immediately wiped off, it leaves behind a stain where the edges are darker than the rest. This phenomenon is called the coffee ring effect. Using this principle, a POSTECH research team has recently developed a new method for arranging quantum dots (QDs) which are nanosized semiconducting crystals. This new simple method facilitates the development of display panels with u
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Albatross divorce rates found to climb during times of warm sea surface temperature
A team of researchers from Universidade de Lisboa, the University of Montana, the South Atlantic Environmental Research Institute and Instituto Universitário, Rua Jardim do Tabaco, has found that black-browed albatrosses living on the Falkland Islands see rising divorce rates during times when the sea surface temperatures rise. In their paper published in Proceedings of the Royal Society B, the gr
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How a new global carbon market could exaggerate climate progress
Nations are poised to begin building an international carbon market, after finally adopting the relevant rules at the UN climate conference in Glasgow earlier this month. Under the COP26 agreement, countries should soon be able to buy and sell UN-certified carbon credits from one another, and use them as a way to achieve greenhouse gas reduction pledges under the Paris climate agreement. But some
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Danskerne: Lægers troværdighed er i top
Analyse af forskellige faggruppers troværdighed i 2021 placerer lægerne på en solid andenplads blandt 26 udvalgte faggrupper, hvor politikerne skraber bunden. Lægerne opnår den højeste karakter i den tid, undersøgelsen er gennemført.
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Scans can detect brain injury after repeated head impacts in sport
Study of former American footballers offers hope that damage could be diagnosed more easily Brain scans of former American football players reveal signs of white matter injury, according to research into the lasting effects of repetitive head impacts in sport. The finding is viewed as significant because until now it has been difficult to identify such damage in the brain until after death. The l
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A better estimate for tick numbers with 'citizen science' data
Apps and websites like eBird and iNaturalist encourage members of the public to report their observations on everything from songbird migration patterns to the presence of new planets. The result is massive datasets that far outmatch what professionally trained scientists could collect, at least in terms of quantity. However biases in the quality of data collected by "citizen scientists" sometimes
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Action over variant shows government keen to avoid Christmas calamity of 2020
Analysis: variant provides test of whether relaxation of rules and booster push is effective policy South Africa to be put on England's travel red list Coronavirus – latest updates See all our coronavirus coverage Last Christmas, as ministers rashly promised five days of festive family gatherings while a new variant gathered pace, Boris Johnson held out until the final hours until he bowed to the
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Nanotech paper retracted for duplicated images
Researchers in the United States and Singapore have lost a 2016 article in Science Advances after some of the group learned that one of their colleagues appears to have used duplicated images in the work. The article, "A universal cooperative assembly-directed method for coating of mesoporous TiO2 nanoshells with enhanced lithium storage properties," was written … Continue reading
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Podcast: What is AI? We made this radio play to help.
Defining what is, or isn't artificial intelligence can be tricky (or tough). So much so, even the experts get it wrong sometimes. That's why MIT Technology Review's Senior AI Editor Karen Hao created a flowchart to explain it all. In this bonus content our host and her team reimagined Hao's original reporting , gamifying it into a radio play. Credits: This episode was reported by Karen Hao. It wa
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New findings about ions around comets
Sofia Bergman, Swedish Institute of Space Physics (IRF) and Umeå University, will defend her doctoral thesis on low-energy ions around comet 67P/Churyumov-Gerasimenko on 26 November. Observing low energy ions is notoriously difficult because their properties are affected greatly by the spacecraft which observes them. Sofia has developed new methods to do this. Using her work, scientists can study
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Clear as (quasi) crystal: Scientists discover the first ferromagnetic quasicrystals
Since the discovery of quasicrystals (QCs), solids that mimic crystals in their long-range order but lack periodicity, scientists have sought physical properties related to their peculiar structure. Now, an international group of researchers report a long-range magnetic order in QCs with icosahedral symmetry that turn ferromagnetic below certain temperatures. This groundbreaking discovery opens do
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Gold-based cancer therapy could face competition from other substances
The gold complex auranofin has traditionally been used for treating rheumatism but is also being evaluated as a treatment for certain forms of cancer. Researchers now show that other molecules that inhibit the same biological system have a more specific effect than auranofin and therefore may have greater potential as cancer therapies.
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Start Black Friday Off Right With A Sam's Club Membership For Just $20
Black Friday is nearly upon us, and there are a lot of possible gifts to buy . Yet with supply chain problems and high demand, you probably won't see many sales. That's where a membership to Sam's Club can help you save on your holiday shopping, and our early Black Friday discount and food bonuses pay dividends before you buy a single gift. How Sam's Club Works Sam's Club gets discounts by using
4h
Getting quantum dots to stop blinking
Quantum dots have many possible applications, but they are limited by their tendency to blink off at random intervals. Chemists have come up with a way to control this unwanted blinking without requiring any modification to the formulation or the manufacturing process.
5h
Sir Eric Ash obituary
Leading figure in the field of electrical engineering whose work played a huge role in modern electronics The electrical engineer Eric Ash, who has died aged 93, made major contributions to controlling and manipulating electrical, optical and acoustic waves for signal processing and imaging applications. Already established as a leading figure in this field when he arrived at University College Lo
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How jellyfish control their lives
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03510-6 Transgenic jellyfish reveal how these fragile creatures get by without a brain.
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Tvillingstudie ger nya ledtrådar om mekanismerna bakom typ 2-diabetes
Enäggstvillingar delar samma DNA, men är inte identiskt lika. En tvilling kan vara sjuk i typ-2 diabetes, medan den andra tvillingen inte utvecklar sjukdomen. En studie som har letts av Lunds universitet har nu upptäckt att det finns skillnader i genernas aktivitet hos tvillingar med och utan typ 2-diabetes. Forskarnas upptäckt kan bidra till utvecklingen av nya behandlingsmetoder.
9h
Humans Didn't Invent Mathematics, It's What the World Is Made Of
Many people think that mathematics is a human invention . To this way of thinking, mathematics is like a language: it may describe real things in the world, but it doesn't "exist" outside the minds of the people who use it. But the Pythagorean school of thought in ancient Greece held a different view. Its proponents believed reality is fundamentally mathematical. More than 2,000 years later, phil
9h
Naked in Cambodia and Arguing the Whole Time | Naked and Afraid
Stream Naked and Afraid on discovery+ ► https://www.discoveryplus.com/show/naked-and-afraid About Naked and Afraid: What happens when you put two complete strangers – sans clothes – in some of the most extreme environments on Earth? Each male-female duo is left with no food, no water, no clothes, and only one survival item. #NakedAndAfraid #Discovery #Survival Subscribe to Discovery: http://bit.l
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Gemensam ekonomi ger färre konfliker
Par som har gemensam ekonomi har färre ekonomiska konflikter än de som har delad ekonomi. Men det gäller främst för par som levt ihop länge. För yngre par är det tvärtom. Gemensam ekonomi ger färre ekonomiska konflikter för par i de flesta åldrar, i jämförelse med par som har delad eller delvis delad ekonomi. Det visar en studie av sambanden mellan pars ekonomiska konflikter och deras sätt att or
10h
Start Black Friday Early With Deep Savings On Babbel
Language is constantly evolving, and the future promises even more changes . Fortunately, it's never been easier to learn a new language with Babbel , and right now, for an early Black Friday Sale, you can lock in a lifetime subscription for this top-rated app at just $179 (reg. $499) for a limited time. A Language Institution First launched in 2008, Babbel has become an institution for language
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Light helicity detector based on 2D magnetic semiconductor CrI3
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27218-3 Two-dimensional magnetic semiconductors hold promise for spin- and valleytronic applications. Here, the authors report the realization of light helicity detectors based on graphene/CrI3 van der Waals heterostructures, exhibiting a photocurrent behaviour determined by the magnetic state of CrI3.
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Breaking the symmetry to suppress the Plateau–Rayleigh instability and optimize hydropower utilization
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27237-0 Satellite drops formed on droplet impact hinder applications from inkjet printing to drop energy harvest. Here, authors reveal that patterned-wettability surfaces can break the symmetry of droplet impacts and suppress the Plateau–Rayleigh instability, preventing satellite drop generation and improving the hy
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Visible-light-mediated catalyst-free synthesis of unnatural α-amino acids and peptide macrocycles
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27086-x To address the shortcomings in the application of bioactive peptides as drugs, incorporation of unnatural amino acids (UAAs) has been used. Here, the authors report an ionic compound-promoted C-N cleavage of alkyl pyridinium to generate alkyl radicals upon excitation by visible light, and apply it for deamin
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Giant single-crystal-to-single-crystal transformations associated with chiral interconversion induced by elimination of chelating ligands
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27282-9 Crystalline materials that undergo large structural changes in response to external stimuli remain rare. Here the authors report a Zinc(II) complex that undergoes a two-step reversible single-crystal-to-single-crystal transformation via thermal removal of ethylene glycol chelating ligands; this results in la
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Hydrothermal plumes as hotspots for deep-ocean heterotrophic microbial biomass production
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-26877-6 Hydrothermal vents are biogeochemically important, but their contribution to the carbon cycle is poorly constrained. Here the authors build a biogeochemical model that estimates autotrophic and heterotrophic production rates of microbial communities within hydrothermal plumes along mid-ocean ridges.
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Self-activating anti-infection implant
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27217-4 Bone implants with antibacterial and osteogenic properties are important for clinical applications, but creating both properties simultaneously remains challenging. Here, the authors demonstrate a self-activating implant using a hydroxyapatite and molybdenum disulfide coating which accelerates bone regenerat
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Tuning organic crystal chirality by the molar masses of tailored polymeric additives
Nature Communications, Published online: 25 November 2021; doi:10.1038/s41467-021-27236-1 Hierarchically ordered chiral crystals have attracted intense research efforts but the need of enantiomeric pure building blocks and difficulties in the precise control of chirality transfer poses a barrier to their application. Here, the authors describe a process which allows preferred formation of one ena
13h
It's Time to Rethink the 12-hour Nursing Shift
With the nursing profession suffering through a worker shortage and tremendous burnout, now seems like a good time to ask: Is the traditional 12-hour shift still worth it? Increasingly, evidence is showing that the marathon work sessions pose serious risks to nurses and patients alike.
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Så farliga är de levande ljusen
Snart tändas tusen juleljus. Varje år bränner svenskarna cirka 18 000 ton ljus, de flesta runt jul. Men är det så klokt egentligen? Vi frågade Aneta Wierzbicka, forskare vid Lunds universitet som länge har studerat hur levande ljus påverkar inomhusluften. Hur farliga är de levande ljusen? – Det går inte att ge ett exakt svar på den frågan. Men jag har forskat länge om förbränning och luftburna pa
14h
The Experiment Podcast: The Wandering Soul
Listen and subscribe: Apple Podcasts | Spotify | Stitcher | Google Podcasts As the Vietnam War dragged on, the U.S. military began desperately searching for any vulnerability in its North Vietnamese enemy. In 1964, it found one: an old Vietnamese folktale about a ghost, eternal damnation, and fear—a myth that the U.S. could weaponize. And so, armed with tape recorders and microphones, American fo
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Thanksgiving advice, 2021: How to deal with climate change-denying Uncle Pete
This is a re-post from the Bulletin of the Atomic Scientists by Richard Somerville "Birds of a feather flock together," so I am sure that nearly all of those reading this article accept the main findings of climate science. Yet many people don't. Instead, they believe a variety of climate myths. These include claims that the world isn't warming; or if warming is occurring, it is natural and not h
18h
Do lobsters have feelings? – podcast
Last week the UK government confirmed it would be extending its animal welfare (sentience) bill to include decapods (such as crabs, lobsters and crayfish), and cephalopods (such as octopuses, squid and cuttlefish). The move followed a government-commissioned review of the scientific evidence, which found strong evidence that cephalopods and decapods do have feelings. Madeleine Finlay spoke to Dr J
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What You're Doing Right Now Is Proof of Quantum Theory – Issue 108: Change
Nobody understands quantum mechanics," Richard Feynman famously said. Long after Max Planck's discovery in 1900 that energy comes in separate packets or quanta, quantum physics remains enigmatic. It is vastly different from how things work at bigger scales, where objects from baseballs to automobiles follow Newton's laws of mechanics and gravitation, consistent with our own bodily experiences. Bu
22h
What Impossible Meant to Richard Feynman – Issue 108: Change
I mpossible! The word resonated throughout the large lecture hall. I had just finished describing a revolutionary concept for a new type of matter that my graduate student, Dov Levine, and I had invented. The Caltech lecture room was packed with scientists from every discipline across campus. The discussion had gone remarkably well. But just as the last of the crowd was filing out, there arose a
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Fantastic Beasts Brought to Life by the Wind – Issue 108: Change
Many of us hit the beach to enjoy some sunshine or catch a wave. But for Dutch artist Theo Jansen it's all about the wind. Jansen's been working with this limitless natural resource for 30 years to create a fabulous array of giant beach creatures—brought to life by the wind. With every gust, his wondrous seaside sculptures become more lifelike, ambling along the coast like creatures in their own
22h
Sleep Better With This Pre-Black Friday Doorbuster Deal On VitalSleep
Sleep is one of the few places where we're completely at peace ( for now, anyway ), and snoring can keep you and others from needed rest. Fortunately, for a limited time, you can get a Pre-Black Friday Doorbusters deal on the VitalSleep Anti-Snoring Mouthpiece , no coupon needed. Stopping Snoring When you sleep, your muscles relax, including the muscles in your throat and neck. In turn, this allo
22h
Joseph LeDoux on animal anxiety/consciousness vs humans
Reading what he says that he is not sure if animals have the same anxiety/consciousness as humans, he isn't saying they don't.. just that no study says they do. I've seen people use the theory of animals unlike humans when confronted by a predator get scared and run, but once they have ran away and aren't in danger anymore, they no longer have fear anxiety etc and just get back to normal relaxed
22h
A new way to generate electricity from waste heat: Using an antiferromagnet for solid devices
Researchers have discovered a giant thermoelectric effect in an antiferromagnet. The study shows, surprisingly, that antiferromagnets can have the same value of the anomalous Nernst effect as conventional ferromagnets, but without any stray magnetic fields that would otherwise affect surrounding devices. The newly discovered recipe for generating large Nernst voltages opens a new research directio
23h
Tracing mechanisms of large exon splicing during vertebrate evolution
In vertebrates, large exons often skip splicing events and are evolutionarily conserved. Scientists from Nagoya University, Japan, have recently identified the mechanism behind regulated splicing of large constitutive exons which are rich in disordered regions, and their potential involvement in the assembly of transcription factors. They also explained how dual-regulation by two distinct groups o
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A stealthy way to combat tumors
Researchers uncovered a new way to indirectly activate T cells that can target tumors, by recruiting a population of helper immune cells called dendritic cells.
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New link between diet, intestinal stem cells and disease discovered
Obesity, diabetes and gastrointestinal cancer are frequently linked to an unhealthy diet. However, the molecular mechanisms responsible for this are not fully understood. Researchers have gained some new insights that help to better understand this connection. These findings provide an important basis for the development of non-invasive therapies.
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Breaking down cancer's defenses
Researchers have developed a new probiotic bacteria designed to break down solid cancer cell walls and make other therapies more effective.
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Phages kill dystentery-causing bacteria and reduce virulence in surviving bacteria
Phages are viruses that infect bacteria and can also be used to treat human infections. However, as with antibiotics, bacteria can readily evolve resistance to phage attack, highlighting a key limitation to the use of phages as therapeutics. Now, researchers have shown that the naturally occurring phage A1-1 kills Shigella flexneri, a major cause of dysentery in sub-Saharan Africa and southern Asi
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Suffering from psoriasis? Blame this trio of proteins
About 7.5 million Americans suffer from psoriasis, an autoimmune disease that shows up as patches of red, inflamed skin and painful, scaly rashes. Although there are effective treatments for psoriasis, not everyone responds to these therapies — and for many, the relief is temporary. Scientists have discovered how a key protein called TWEAK damages skin cells in psoriasis patients. Their findings,
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Cystic fibrosis faithfully modeled in a human Lung Airway Chip
Despite advances in patient screenings and breakthrough therapies that allow CF patients now to live into their mid- to late 30s or 40s, sometimes even longer, all patients are plagued by bacteria settling in their mucus, which causes inflammation in their lungs, and eventually causes their respiratory systems to fail. A major barrier to developing new and urgently needed treatments is the lack of
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New ultrahard diamond glass synthesized
An international research team that synthesized a new ultrahard form of carbon glass with a wealth of potential practical applications for devices and electronics. It is the hardest known glass with the highest thermal conductivity among all glass materials.
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Hubble witnesses shock wave of colliding gases in Running Man Nebula
Mounded, luminous clouds of gas and dust glow in this Hubble image of a Herbig-Haro object known as HH 45. Herbig-Haro objects are a rarely seen type of nebula that occurs when hot gas ejected by a newborn star collides with the gas and dust around it at hundreds of miles per second, creating bright shock waves. In this image, blue indicates ionized oxygen (O II) and purple shows ionized magnesium
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Delta-like SARS-CoV-2 variants are most likely to increase pandemic severity
Mathematical model indicates SARS-CoV-2 variants that combine enhanced transmissibility with the ability to escape immunity cause more infections than variants with either trait alone. Understanding which type of variants are most likely to increase infections and pandemic severity could help researchers and public health officials interpret the significance of novel and existing variants and desi
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Collapse of ancient Liangzhu culture caused by climate change
Referred to as 'China's Venice of the Stone Age', the Liangzhu excavation site in eastern China is considered one of the most significant testimonies of early Chinese advanced civilization. More than 5000 years ago, the city already had an elaborate water management system. Until now, it has been controversial what led to the sudden collapse. Massive flooding triggered by anomalously intense monso
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How people understand other people
To successfully cooperate or compete with other people in everyday life, it is important to know what the other person thinks, feels, or wants. Researchers have explored which strategies people use to understand other people.
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Age, sex and waning COVID-19 antibodies
Antibodies after COVID-19 vaccination peaked higher for women and younger people than men and individuals over the age of 65, respectively, but levels dropped by half within six months for everyone in a study group.
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COVID-19 vaccine elicits weak antibody response in people taking immunosuppressant
People taking TNF inhibitors, a kind of immunosuppressive drug used to treat rheumatoid arthritis and other autoimmune conditions, produced a weaker and shorter-lived antibody response after two doses of Pfizer's COVID-19 vaccine, according to a new study. A third vaccine dose drove antibody levels back up, indicating that this additional dose may provide protection as the virus's delta variant co
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Pre-Black Friday Doorbusters: End to Your Dog's Endless Itching with This Home Test
Fluffy, Roscoe, Sparky, whatever you named your dog has been itching and licking themself a lot lately. However, you can't put your hand on what's causing the sudden change. It's a good thing you'd do anything to make sure your pet is happy and safe . Did you know that a certain diet or environmental factors can make your dog uncomfortable and even sick? It's time to put an end to their discomfor
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How to Talk to Your Family About Climate Change
Does the holiday season feel a bit warmer to you this year? Well, it's not just that new sweater your grandma knit for you. Climate change has already caused a rise in global temperatures, and arguably led to increasingly extreme weather. While your relatives might not believe it's as big of a deal as people make it out to be, we want to give you a handy guide to help possibly convince them other
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Episodic memory enhancement versus impairment is determined by contextual similarity across events [Psychological and Cognitive Sciences]
For over a century, stability of spatial context across related episodes has been considered a source of memory interference, impairing memory retrieval. However, contemporary memory integration theory generates a diametrically opposite prediction. Here, we aimed to resolve this discrepancy by manipulating local context similarity across temporally disparate but related episodes…
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G protein signaling-biased mu opioid receptor agonists that produce sustained G protein activation are noncompetitive agonists [Pharmacology]
The ability of a ligand to preferentially promote engagement of one signaling pathway over another downstream of GPCR activation has been referred to as signaling bias, functional selectivity, and biased agonism. The presentation of ligand bias reflects selectivity between active states of the receptor, which may result in the display…
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Evolutionary change in the construction of the nursery environment when parents are prevented from caring for their young directly [Evolution]
Parental care can be partitioned into traits that involve direct engagement with offspring and traits that are expressed as an extended phenotype and influence the developmental environment, such as constructing a nursery. Here, we use experimental evolution to test whether parents can evolve modifications in nursery construction when they are…
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Chromatin bridges, not micronuclei, activate cGAS after drug-induced mitotic errors in human cells [Cell Biology]
Mitotic errors can activate cyclic GMP–AMP synthase (cGAS) and induce type I interferon (IFN) signaling. Current models propose that chromosome segregation errors generate micronuclei whose rupture activates cGAS. We used a panel of antimitotic drugs to perturb mitosis in human fibroblasts and measured abnormal nuclear morphologies, cGAS localization, and IFN…
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Temporal order of signal propagation within and across intrinsic brain networks [Neuroscience]
We studied the temporal dynamics of activity within and across functional MRI (fMRI)–derived nodes of intrinsic resting-state networks of the human brain using intracranial electroencephalography (iEEG) and repeated single-pulse electrical stimulation (SPES) in neurosurgical subjects implanted with intracranial electrodes. We stimulated and recorded from 2,133 and 2,372 sites, respectively, in…
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A traveling-wave solution for bacterial chemotaxis with growth [Population Biology]
Bacterial cells navigate their environment by directing their movement along chemical gradients. This process, known as chemotaxis, can promote the rapid expansion of bacterial populations into previously unoccupied territories. However, despite numerous experimental and theoretical studies on this classical topic, chemotaxis-driven population expansion is not understood in quantitative terms. Bui
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Th17 cell master transcription factor RORC2 regulates HIV-1 gene expression and viral outgrowth [Microbiology]
Among CD4+ T cells, T helper 17 (Th17) cells are particularly susceptible to HIV-1 infection and are depleted from mucosal sites, which causes damage to the gut barrier, resulting in a microbial translocation-induced systemic inflammation, a hallmark of disease progression. Furthermore, a proportion of latently infected Th17 cells persist long…
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Distributional conformal prediction [Statistics]
We propose a robust method for constructing conditionally valid prediction intervals based on models for conditional distributions such as quantile and distribution regression. Our approach can be applied to important prediction problems, including cross-sectional prediction, k–step-ahead forecasts, synthetic controls and counterfactual prediction, and individual treatment effects prediction. Our
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Hippocampal neurons' cytosolic and membrane-bound ribosomal transcript profiles are differentially regulated by learning and subsequent sleep [Neuroscience]
The hippocampus is essential for consolidating transient experiences into long-lasting memories. Memory consolidation is facilitated by postlearning sleep, although the underlying cellular mechanisms are largely unknown. We took an unbiased approach to this question by using a mouse model of hippocampally mediated, sleep-dependent memory consolidation (contextual fear memory). Because synaptic…
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Plant-environment microscopy tracks interactions of Bacillus subtilis with plant roots across the entire rhizosphere [Biophysics and Computational Biology]
Our understanding of plant–microbe interactions in soil is limited by the difficulty of observing processes at the microscopic scale throughout plants' large volume of influence. Here, we present the development of three-dimensional live microscopy for resolving plant–microbe interactions across the environment of an entire seedling growing in a transparent soil…
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Facile self-assembly of colloidal diamond from tetrahedral patchy particles via ring selection [Physics]
Diamond-structured crystals, particularly those with cubic symmetry, have long been attractive targets for the programmed self-assembly of colloidal particles, due to their applications as photonic crystals that can control the flow of visible light. While spherical particles decorated with four patches in a tetrahedral arrangement—tetrahedral patchy particles—should be an ideal…
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Anatomy of an extensively drug-resistant Klebsiella pneumoniae outbreak in Tuscany, Italy [Microbiology]
A protracted outbreak of New Delhi metallo-β-lactamase (NDM)–producing carbapenem-resistant Klebsiella pneumoniae started in Tuscany, Italy, in November 2018 and continued in 2020 and through 2021. To understand the regional emergence and transmission dynamics over time, we collected and sequenced the genomes of 117 extensively drug-resistant, NDM-producing K. pneumoniae isolates cultured…
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Colon cancer cells acquire immune regulatory molecules from tumor-infiltrating lymphocytes by trogocytosis [Immunology and Inflammation]
Cancer cells can develop an immunosuppressive tumor microenvironment to control tumor-infiltrating lymphocytes. The underlying mechanisms still remain unclear. Here, we report that mouse and human colon cancer cells acquire lymphocyte membrane proteins including cellular markers such as CD4 and CD45. We observed cell populations harboring both a tumor-specific marker and…
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Actinobacteria challenge the paradigm: A unique protein architecture for a well-known, central metabolic complex [Microbiology]
α-oxoacid dehydrogenase complexes are large, tripartite enzymatic machineries carrying out key reactions in central metabolism. Extremely conserved across the tree of life, they have been, so far, all considered to be structured around a high–molecular weight hollow core, consisting of up to 60 subunits of the acyltransferase component. We provide…
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Stochastic rectification of fast oscillations on slow manifold closures [Earth, Atmospheric, and Planetary Sciences]
The problems of identifying the slow component (e.g., for weather forecast initialization) and of characterizing slow–fast interactions are central to geophysical fluid dynamics. In this study, the related rectification problem of slow manifold closures is addressed when breakdown of slow-to-fast scales deterministic parameterizations occurs due to explosive emergence of fast…
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Three-dimensional virtual histology of the human hippocampus based on phase-contrast computed tomography [Medical Sciences]
We have studied the three-dimensional (3D) cytoarchitecture of the human hippocampus in neuropathologically healthy and Alzheimer's disease (AD) individuals, based on phase-contrast X-ray computed tomography of postmortem human tissue punch biopsies. In view of recent findings suggesting a nuclear origin of AD, we target in particular the nuclear structure of…
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Integrated pest management can still deliver on its promise, with help from the bees [Sustainability Science]
Farmers must juggle a myriad of decisions for their farms to be economically and environmentally sustainable. Doing this over successive growing seasons requires keeping pest populations below thresholds to avoid significant yield loss (1). Control programs to prevent these losses from pests can include crop rotation, resistant crops, biological controls,…
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Correction for Lau et al., Rapid responses of soil microorganisms improve plant fitness in novel environments [Ecology]
ECOLOGY Correction for "Rapid responses of soil microorganisms improve plant fitness in novel environments," by Jennifer A. Lau and Jay T. Lennon, which was first published August 13, 2012; 10.1073/pnas.1202319109 (Proc. Natl. Acad. Sci. U.S.A. 109, 14058–14062). The authors wish to note the following: "We discovered an error in the…
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Correction to Supporting Information for He et al., Neural progenitor cell pyroptosis contributes to Zika virus-induced brain atrophy and represents a therapeutic target [Microbiology]
MICROBIOLOGY Correction to Supporting Information for "Neural progenitor cell pyroptosis contributes to Zika virus-induced brain atrophy and represents a therapeutic target," by Zhenjian He, Shu An, Jiahui Chen, Shuqing Zhang, Chahui Tan, Jianchen Yu, Hengming Ye, Yun Wu, Jie Yuan, Jueheng Wu, Xun Zhu, and Mengfeng Li, which was first…
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Endangered deer's prion gene could protect it from chronic wasting disease
China's Père David's deer was nearly gone in the late 1800s. Just 18 deer—the very last of their kind—were brought into captivity after the rest had been hunted to extinction. When 11 of the deer reproduced, the species had a chance. Today, after centuries of reintroductions and breeding under human care, the population sits at around 3,000.
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Tempera painting probed on the molecular scale
In contrast to the oil painting technique that supplanted it at the end of the 15th century, tempera painting, practiced on wood panels, walls or canvas has received little attention on the physico-chemical scale. This painting technique, which has been practiced since Antiquity, is characterized by pigments applied in a water-based binding-medium, often egg-yolk.
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Best Amazon Black Friday Deals for 2021
Black Friday, the day after Thanksgiving, is traditionally the day that many businesses finally get out of the debt, "red," and make a profit, "black." For consumers, it's a day to grab some of the best deals of the year on their favorite sites like Amazon. Despite rumors that deals wouldn't be as plentiful this year, there have been amazing deals hitting the market as early as late September and
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Rolls-Royce 'Spirit of Innovation' All-Electric Aircraft Smashes World Records in Latest Flight
Rolls-Royce has been working on an all-electric plane, called "Spirit of Innovation," and the automaker reports that the aircraft absolutely clobbered at least three world records in their latest test flights. For an aircraft that's only been in the air for a few hours total, that's pretty impressive — this report comes not quite two months after the aircraft took off for its maiden flight. After
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Contextual inference underlies the learning of sensorimotor repertoires
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04129-3 A theory of motor learning based on the principle of contextual inference reveals that adaptation can arise by both creating and updating memories and changing how existing memories are differentially expressed, and predicts evoked recovery and context-dependent single-trial learning.
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Fluorescence lifetime imaging to study DNA compaction and gene activities
Optical imaging is useful to investigate the structure and function of cellular genomes, but it is nevertheless challenging to image the immensely convoluted and irregular compacted DNA polymer. In a new report now published on Nature, Light: Science & Applications, Svitlana M. Levchenko and a team of researchers in China, Poland, and the U.S., developed fluorescence life-time imaging (FLIM) to ad
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Scientists Square Off Over Covid, Wuhan, and Peter Daszak
Since forming in late 2020, the Paris group has been working to influence the WHO's investigation of Covid origins, citing a need for balance and transparency. The group claims Peter Daszak, in his capacity as president of EcoHealth Alliance, has withheld critical information and misled public opinion.
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Artificial heavy fermions in a van der Waals heterostructure
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04021-0 A study demonstrates the synthesis and characterization of a two-dimensional van der Waals heterostructure hosting artificial heavy fermions, providing a tunable platform for investigations of heavy-fermion physics.
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ecDNA hubs drive cooperative intermolecular oncogene expression
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04116-8 Extrachromosomal DNA (ecDNA) congregates in clusters called ecDNA hubs that promote intermolecular interactions between gene-regulatory regions and thereby amplify the expression of oncogenes such as MYC in cancer cell lines.
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The CLIP1–LTK fusion is an oncogenic driver in non‐small‐cell lung cancer
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04135-5 Whole-transcriptome sequencing of a subset of 75 non-small-cell lung cancer specimens in a multi-institutional genome screening study identified a fusion of the CLIP1 and LTK genes with transformational potential due to constitutive LTK kinase activity.
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Ultrahard bulk amorphous carbon from collapsed fullerene
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-03882-9 Preparing amorphous phases of carbon with mostly sp3 bonding in bulk is challenging, but macroscopic samples that are nearly pure sp3 are synthesized here by heating fullerenes at high pressure.
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Electron-beam energy reconstruction for neutrino oscillation measurements
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04046-5 Electron scattering measurements are shown to reproduce only qualitatively state-of-the-art lepton–nucleus energy reconstruction models, indicating that improvements to these particle-interaction models are required to ensure the accuracy of future high-precision neutrino oscillation experiments.
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The human microbiome encodes resistance to the antidiabetic drug acarbose
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04091-0 Bacteria in the human gut and oral microbiome encode enzymes that selectively phosphorylate the antidiabetic drug acarbose—an inhibitor of both human and bacterial α-glucosidases—resulting in its inactivation and limiting the drug's effects on the ability of the host to metabolize complex carbohydrates.
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On-chip electro-optic frequency shifters and beam splitters
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-03999-x Engineering of the coupling between optical modes in a lithium niobate chip enables the realization of tunable, bi-directional and low-loss electro-optic frequency shifters controlled using only continuous and single-tone microwaves.
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Mechanical forcing of the North American monsoon by orography
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-03978-2 The core North American monsoon arises through topographic steering of the jet stream, and should be considered as convection-enhanced orographic rainfall produced by a mechanically forced stationary wave.
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Synthesis of paracrystalline diamond
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04122-w A study describes the synthesis, structural characterization and formation mechanism of a paracrystalline state of diamond, adding an unusual form of diamond to the family of carbon-based materials.
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IL-27 signalling promotes adipocyte thermogenesis and energy expenditure
Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-04127-5 Therapeutic administration of IL-27—serum levels of which are decreased in individuals with obesity—improves thermogenesis, protects against diet-induced obesity and ameliorates insulin resistance in mouse models of obesity.
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Electrons reveal the need for improved neutrino models
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03456-9 Experiments on electrons interacting with atomic nuclei have shown that the models used to measure neutrino oscillations — and thereby possibly to understand the formation of the Universe — are less accurate than we thought.
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Context is key for learning motor skills
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03028-x A sophisticated theory for learning motor skills places emphasis on the need for inferring context — drawing conclusions about the structure of the environment — for efficiently storing and expressing motor memories.
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Forceful synapses reveal mechanical interactions in the brain
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03516-0 Communication between neurons in the brain is generally associated with electrochemical signalling. Here we reveal that neurons can also communicate through the force generated by the enlargement of dendritic spines. This force is comparable to that of muscle contraction and might underlie learning and memory, suggesting t
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Benefits of megastudies for testing behavioural interventions
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03400-x Trials of behavioural interventions are hard to compare, hampering policy decision-making. The effects of more than 50 interventions on exercise behaviour have been compared using an experimental design called a megastudy.
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How to make macroscale non-crystalline diamonds
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-02957-x A diamond shatters easily, despite it being the hardest natural material. Atomically disordered forms of diamond made from buckyballs might not only overcome this problem, but also allow other properties to be optimized.
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Robots in Europe vote for the radical right
Exposure to automation led to an increase in support for radical-right parties in Western European countries between the late 1990s and 2016, according to a newly published study byBocconi professors Massimo Anelli, Italo Colantone and Piero Stanig. They find that individuals that, due to their characteristics and to those of the labor market in which they are inserted, are more exposed to the aut
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A new topological magnet with colossal angular magnetoresistance
While electrons are well known to carry both charge and spin, only the electric charge portion is used as an information carrier in modern electronic devices. However, the limits of modern electronics and the impending end of Moore's Law have rekindled the interest in the development of spintronic devices, which are capable of harnessing the spin of the electrons. It is expected that the widesprea
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The formation of the North American Monsoon: A unique case in the world
Monsoons are found not only in South Asia; they are part of a global-scale circulation that affects almost all tropical regions (e.g., Australian monsoon, African monsoon, etc.). One occurs in North America too, the North American monsoon, which affects western Mexico and the southwestern United States, in particular, Arizona and New Mexico.
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Only this one kind of frog has legit teeth
Just one species of frog, out of more than 7,000 living today, has true teeth in its lower jaw, report researchers. The culprit, a large marsupial frog named Gastrotheca guentheri , has puzzled scientists since its discovery in 1882 for possessing what appeared to be a complete set of jagged, daggerlike teeth on the top and bottom of its mouth. Scientists have since waffled over the exact nature
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Missing nature during COVID took a mental toll on young adults'
Two new studies link declines in outdoor activities and park use during the first year of the COVID-19 pandemic to reductions in mental health measures for teens and young adults from middle school through college. The studies build evidence for the mental health benefits of nature's medicine—and the potential hazards of restricting access, researchers say. "This is an opportunity for anyone conc
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Rolls-Royce Says Its Electric Plane Just Smashed the World Record for Speed
The first electric plane took flight in 1973 . There was just one person on board and the plane only stayed in the air for 14 minutes, but it was the beginning of an ongoing effort to power aircraft with batteries instead of fuel. Multiple companies are working on building faster, lighter, more efficient electric planes , as well as batteries to power those planes—and last week an aircraft made b
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Solceller på åkern ökar skörden
Solceller på jordbruksmark skulle ge mer el än Sveriges årliga behov, och dessutom öka skörden vid torrt väder, visar beräkningar från Mälardalens högskola. På Kärrbo Prästgård utanför Västerås har ett agrivoltaiskt forskningsprojekt pågått sedan början av året, där man kombinerar solceller med odling på jordbruksmark. Nu kan forskarna avslöja de första lovande resultaten: bland annat ökad skörd
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HUGE Swells at St. Paul Harbor | Deadliest Catch
Stream Full Episodes of Deadliest Catch: discovery+ ► https://www.discoveryplus.com/show/deadliest-catch Discovery ► https://go.discovery.com/tv-shows/deadliest-catch/ #DeadliestCatch #Discovery #Storms Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https://www
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Atomistic insights into the structure of mitochondrial complex I
Structural biology and computer simulations pave the way for a deeper understanding of biological energy conversion. High-resolution structure and atomistic simulations allowed researchers to identify novel features in one of the key enzymes that contributes to energy generation in cells.
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Little kids don't believe girls like computer science and engineering
Children as young as age 6 develop ideas that girls are less interested than boys in computer science and engineering. These stereotypes can extend into the late teens and contribute to a gender gap in STEM college courses and related careers, according to a new study that explores the gender-based beliefs young children and teens hold about interest in STEM fields. "Gender-interest stereotypes t
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Salvaging rare earth elements from electronic waste
Manufacturers rely on rare earth elements, like neodymium, to create strong magnets used in motors for electronics including hybrid cars, aircraft generators, loudspeakers, hard drives and in-ear headphones. But mineral deposits containing neodymium are hard to reach and are found in just a few places on Earth.
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Himalayan bats are functionally less diverse at high than at lower elevations, but show the same evolutionary diversity
Million years of evolution have produced a dazzling variety of species, each uniquely adapted to its environment. A straightforward way to measuring biodiversity is by the number of species (taxonomic diversity). Recently, there is growing emphasis to quantify diversity also in other ways: a) functional diversity, which is the diversity of phenotypic traits that allow organisms to perform their ec
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The surgical solution to congenital heart defects
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03517-z Some babies are born with hearts that have missing or malformed parts. A series of delicate operations can fix the damage and extend the lives of these children.
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How to repair a baby's broken heart
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03518-y Some babies are born with a rare disorder in which only one of the lower chambers of their heart works properly. These single-ventricle defects (SVDs) can be managed through a complex series of operations.
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Video: Babies with misshapen hearts
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03519-x Babies born with one small or malformed ventricle can be treated with a series of surgeries, but new techniques could allow doctors to begin treatment from within the womb.
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Super tiny lag adds to the awkwardness of Zoom
Conversations on Zoom can be exhausting. New research shows that trying to catch subtle cues despite internet lag time may be why. Conversations have a transition time between speakers averaging about 200 milliseconds. Because this is fast, the listener has to comprehend the speaker, plan their response, and predict when they can cut in, simultaneously, says Julie Boland, professor of psychology
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Pre-Black Friday Doorbusters: Save on This Gaming Controller
Mobile games have absolutely taken off the last couple of years, and until the next best thing comes along , they offer a great way to play great games anywhere. Some of the best games: League of Legends, Call of Duty, Fortnite, Minecraft, and more have been ported to phones and are available to play even if you don't have a gaming system. Phones aren't designed for intense, competitive play thou
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Venetian blinds
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03525-z A future in the past.
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Daily briefing: What we know about vaccines and long COVID
Nature, Published online: 22 November 2021; doi:10.1038/d41586-021-03531-1 Vaccines reduce the risk of developing COVID-19 — but studies disagree on their protective effect against long COVID. Plus, lab-grown seafood is coming to a table near you and all about AI-powered protein-folding predictions.
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Protecting the Pacific's endangered marine species using artificial intelligence
The pelagic ocean covers over 50 percent of the planet's surface and many of the species that call it home travel thousands of miles each year, seeking food and suitable nursery grounds. Some of these species end up in your favorite sushi—like Bigeye tuna—while others are some of the most imperiled on the planet, like leatherback sea turtles. Catching one without catching the other has challenged
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Endangered ocelots and their genetic diversity may benefit from artificial insemination
The female ocelot lay anesthetized on the exam table, behind the scenes at the Albuquerque Biopark Zoo. As a veterinarian on the team preparing to artificially inseminate this animal, my palms were sweating at the thought of missing a step, dropping the sperm sample, or finding out our sample did not survive freezing. Any of these possibilities would end the procedure.
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Statistical ecology can unlock the power of biodiversity data in Africa
Africa boasts an immensely rich diversity of plant and animal species. These are the building blocks of healthy ecosystems. Yet, the projected loss of wild habitats and species on the continent threatens biodiversity. Recent reports by the Intergovernmental Panels on Biodiversity and Ecosystem Services and Climate Change also highlight how biodiversity loss and climate change threaten human well-b
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A new ratings industry is emerging to help homebuyers assess climate risks
As climate change fuels large-scale natural disasters, the real estate mantra of "location, location, location" is taking on new meaning. In 2021, homeowners have contended with threats including paralyzing cold on the Great Plains, wildfire evacuations in the West and flooding from the South to New York City and New England.
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Police reporting can undermine domestic violence victims, language analysis shows
As police officer Wayne Couzens was sentenced for the murder of Sarah Everard, North Yorkshire Police Commissioner Philip Allott said women "need to be streetwise about when they can be arrested and when they can't be arrested." Couzens had exploited his authority to falsely arrest Everard, yet Allot appeared to be informing women that it is their responsibility not to get raped and murdered by th
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Trpm5 channels encode bistability of spinal motoneurons and ensure motor control of hindlimbs in mice
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-27113-x The authors show that Trpm5, but not Trpm4, is the main Na+ -permeant channel mediating the warmth-activated ICaN in lumbar motoneurons. Trpm5 is also critical in generating plateau potentials in bistable motoneurons that are essential for producing a postural tone in hindlimbs and amplifying the locomotor o
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ATR inhibition enables complete tumour regression in ALK-driven NB mouse models
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-27057-2 Effective therapeutic options are still needed in neuroblastoma treatment. Here, the authors, through a comprehensive proteomics analysis, identify ATR as a potential therapeutic target of neuroblastoma and demonstrate the efficacy of the ATR inhibitor BAY1895344 in combination with the ALK tyrosine kinase i
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Heterozygous missense variant of the proteasome subunit β-type 9 causes neonatal-onset autoinflammation and immunodeficiency
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-27085-y Genetic variants of proteasome subunit genes have been shown to associate with perturbed immune function. Here authors show that a heterozygous missense variant of the immunoproteasome subunit β-type 9 causes an autoinflammatory/immune deficiency syndrome in humans and in a mouse model.
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Mechanisms for destabilisation of RNA viruses at air-water and liquid-liquid interfaces
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-27052-7 We know that air-water interfaces can generically inactivate viruses, but the mechanisms behind this observation are unclear. Here the authors use simulations to uncover those mechanisms and find that the electrostatic repulsive free energy of an RNA virus increases by several thousands of kBT as it approach
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Ecological memory preserves phage resistance mechanisms in bacteria
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-26609-w One might think that complete extinction of a virulent pathogen is the most effective way of saving a population. For a bacteria-phage system, Skanata and Kussell show that sustaining a minimum pathogen level is actually favorable to prevent a complete loss of immunity in the long run.
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Solution-processable and functionalizable ultra-high molecular weight polymers via topochemical synthesis
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-27090-1 Topochemical polymerization reactions produce ultra-high molecular weight crystalline polymers. Here the authors show a family of para-azaquinodimethane compounds that undergo facile visible light and thermally initiated polymerization in the solid state and the crystal structure has been resolved via cryoel
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Cas9-specific immune responses compromise local and systemic AAV CRISPR therapy in multiple dystrophic canine models
Nature Communications, Published online: 24 November 2021; doi:10.1038/s41467-021-26830-7 The Cas9-specific T cell response has been speculated to impair CRISPR therapy. Here, the authors show that local and systemic AAV CRISPR therapy induces cytotoxic killing and eliminates rescued dystrophin in canine models of Duchenne muscular dystrophy.
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Image: Hubble spots swirls of dust in the flame Nebula
The Flame Nebula, also called NGC 2024, is a large star-forming region in the constellation Orion that lies about 1,400 light-years from Earth. It's a portion of the Orion Molecular Cloud Complex, which includes such famous nebulae as the Horsehead Nebula and Orion Nebula.
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Nasa animation shows how spacecraft could deflect asteroid – video
Nasa is preparing to launch a mission that could show us how to save the planet from an asteroid strike, similar to that seen in films such as Armageddon and Deep Impact. The Dart mission is the first dedicated to investigating and demonstrating a method of asteroid deflection by changing an asteroid's motion in space through kinetic impact. Nasa has released an animation showing what the process
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Misstänkt allergi stod i vägen för dialys
"En medfödd njursjukdom gör att en man född på 1960-talet behöver dialys ett par, tre gånger i veckan. Remissen till oss på yrkes- och miljö­dermatologiska avdelningen vid Skånes universitetssjukhus kom från en läkare på njuravdelningen i Lund. Jag kontaktade dem för eventuell uppdaterad information och redan här krävdes detektivarbete, eftersom mannen hade flyttats till njuravdelningen i Malmö.
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Save Every Note With This Mini Wipebook Pre-Black Friday Doorbuster Deal
While technology is working to help us avoid the real world , most of us still have jobs to do, and that means notes to take. The Mini Wipebook Scan 2-Pack , a deal from our Pre-Black Friday Doorbusters Sale, makes that easy to do, while saving frustration and paper. Notes That Are Easy To Keep If you've ever spilled coffee on a notebook, or just found yourself desperately paging through one look
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How moles change into melanoma
Melanoma researchers published a study that gives a new explanation of what causes moles to change into melanoma. These findings pave the way for more research into how to reduce the risk of melanoma, delay development, and detect melanoma early.
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How to eat a poison butterfly
In high enough concentrations, milkweed can kill a horse, or a human. To be able to eat this plant, monarchs evolved a set of unusual cellular mutations. New research shows the animals that prey on monarchs also evolved these same mutations.
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Hard times tear coupled seabirds apart
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03509-z Even birds get divorced, and, as in humans, resource constraints can drive more couples to the brink.
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GERTAGELSE HERFRA ÆÆÆ

Scientists warn of new Covid variant with high number of mutations
The B.1.1.529 variant was first spotted in Botswana and six cases have been found in South Africa Coronavirus – latest updates See all our coronavirus coverage Scientists have warned that a new Covid variant which carries an "extremely high number" of mutations may drive further waves of disease by evading the body's immune defences. The number of cases confirmed by genomic sequencing is very sma
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The System Only Worked Because It Was Pushed
The men who killed Ahmaud Arbery will not get away with it. Yet the most surprising aspect of the trial is not the verdict, but the fact that the trial happened at all. On Wednesday, a Georgia jury convicted Travis McMichael; his father, Gregory McMichael; and their friend William Bryan of felony offenses after the trio chased down and then shot Arbery in Brunswick, Georgia, in February of last y
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South Africa to be put on England's travel red list over latest Covid variant
Variant causing concern because of 'extremely high' number of mutations feared present across South Africa Coronavirus – latest updates See all our coronavirus coverage South Africa will be placed under England's red list travel restrictions after scientists raised the alarm over what is thought to be the worst Covid-19 variant ever identified. Hundreds of people who have recently returned from S
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Extraordinary Roman mosaic and villa discovered beneath farmer's field in Rutland, UK
Archaeologists have unearthed the first Roman mosaic of its kind in the UK. Today (Thursday 25th November 2021), a rare Roman mosaic and surrounding villa complex have been protected as a Scheduled Monument by DCMS on the advice of Historic England. The decision follows archaeological work undertaken by a team from University of Leicester Archaeological Services (ULAS), working in partnership with
15h
What do we know about the new 'worst ever' Covid variant?
UK places South Africa on red travel list over B.1.1.529 variant picked up by scientists in country South Africa to be put on England's travel red list See all our coronavirus coverage What is the new variant and why is it a concern? Scientists have detected a new Covid-19 variant called B.1.1.529 and are working to understand its potential implications. About 50 confirmed cases have been identif
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Astronomers discover ancient brown dwarf with lithium deposits intact
Brown dwarfs, also known as "coffee colored dwarfs" or "failed stars" are the natural link between stars and planets. They are more massive than Jupiter but now sufficiently to burn hydrogen, which is the fuel the stars use to shine. For that reason these substellar objects were not observed until observers detected them in the mid 1990's. They are particularly interesting because it was predicted
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A doubly magic discovery
A team of researchers, including scientists from the National Superconducting Cyclotron Laboratory (NSCL) and the Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU), have solved the case of zirconium-80's missing mass.
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Novel color photography using a high-efficiency probe can super-focus white light into a 6-nanometer spot
Scientists have developed new materials for next-generation electronics so tiny that they are not only indistinguishable when closely packed, but they also don't reflect enough light to show fine details, such as colors, with even the most powerful optical microscopes. Under an optical microscope, carbon nanotubes, for example, look grayish. The inability to distinguish fine details and difference
13h
Researchers study factors that impact degree of pleasure derived from hugs
A small team of researchers at the University of London has attempted to measure the factors that influence the amount of pleasure a person receives from hugging another person. In their paper published in the journal Acta Psychologica, the group describes two separate experiments they conducted to learn more about the experience of hugging, at least in the U.K.
8h
The US Military Just Created a Major New Group to Study UFOs
Acronym City The US Department of Defense is ramping up its efforts to see if the truth is really out there with a new task force dedicated to studying UFOs. The group, dubbed the Airborne Object Identification and Management Synchronization Group (AOIMSG), was announced on Tuesday via a DoD press release . Its mission will be to "detect, identify and attribute objects of interests" spotted in mi
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Elon Musk Encourages People to Ditch Crypto Exchanges Like Binance
Tesla CEO Elon Musk took a stance against cryptocurrency exchanges in a Tuesday tweet. On Twitter, someone mused about breaking the ecosystem's "dependence on CEXs like [B]inance and [R]obinhood," prompting another to quip "not your keys, not your crypto." Then Musk chimed in, tweeting "exactly" in reply. In simple terms, a cryptocurrency wallet contains both public and private cryptographic keys
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US Military: Let's Shoot Down Hypersonic Missiles With Smaller Hypersonic Missiles
Glide Phase Interceptor The US Missile Defense Agency (MDA) has awarded research and development contracts to several military contractors to design a "glide phase interceptor" to take out enemy hypersonic missiles. Simply put, according to Breaking Defense , the system is intended to catch up to and destroy an offensive hypersonic missile before it enters into its descent phase, where it becomes
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This Thanksgiving, Remember the Curse of Ham
This article originally appeared in Imani Perry's newsletter, Unsettled Territory, free through November 30 and available with an Atlantic subscription after that. Sign up here . Charles Waddell Chesnutt would hardly qualify as a representative of late-19th-century Black experience. Born in 1858 in Ohio to parents who had been free people of color in Fayetteville, North Carolina, his skin was so
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It Wasn't a Hoax
If Donald Trump had been supported only by people who affirmatively liked him, his attack on American democracy would never have gotten as far as it did. Instead, at almost every turn, Trump was helped by people who had little liking for him as a human being or politician, but assessed that he could be useful for purposes of their own. The latest example: the suddenly red-hot media campaign to en
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Walmart Removes Listing for Kids' Toy That Sings About Cocaine
Caustic Cactus Ania Tanner, a grandmother from Ontario, Canada, was shocked when an innocent-looking dancing cactus toy she bought for her granddaughter at Walmart started swearing and singing about doing cocaine in Polish, CTV News reports . "This toy uses swear words and talking about cocaine use," Tanner told the broadcaster. "This is not what I ordered for my granddaughter." Unsurprisingly, W
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JPMorgan's Yelp Page Bombed with 1-Star Reviews After Elon Tweet
Review Bombed Never underestimate the power of having your own personal Stan Army. After being sued by JPMorgan for his infamous 420 tweet , Tesla CEO Elon Musk joked about giving the bank a one-star review on Yelp . That's when his most ardent fans decided to bombard the bank's Yelp page with bad reviews, as first spotted by Insider . "One star only for their frivolous lawsuits against their bus
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SpaceX Launches NASA Battering Ram to Crash Into Giant Asteroid
Asteroid Deflector A test that could lead to preventing our extinction from a deadly asteroid has finally launched. NASA — with the help of a SpaceX Falcon 9 rocket — launched its Double Asteroid Redirection Test (DART) spacecraft on Tuesday night . The craft successfully launched from the Vandenberg Space Force Base in California, according to CNN , with the Falcon 9 booster landing back on Eart
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Find vet before buying pets for Christmas, Britons warned
Increase in dog and cat ownership in lockdown and Brexit standards issues have led to vet shortage People who are considering buying dogs and cats for Christmas are being asked to check if they have access to a vet before they buy due to shortages caused by Brexit and Covid. The British Veterinary Association (BVA) is urging caution after a rise in demand for vets due to the increase in pet owner
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What Slavery Looked Like in the West
E arly travelers to the American West encountered unfree people nearly everywhere they went: on ranches and farmsteads, in mines and private homes, and even on the open market, bartered like any other tradable good. Unlike on southern plantations, these men, women, and children weren't primarily African American; most were Native American. Tens of thousands of Indigenous people labored in bondage
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What is photosynthesis?
Photosynthesis is the process used by plants, algae and certain bacteria to turn sunlight, carbon dioxide and water into food (sugars) and oxygen.
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UK public urged to get Covid booster by 11 December if eligible to avoid waning immunity
New research shows the risk of infection increases significantly six months after a second dose of the Pfizer vaccine Ministers are urging millions of Britons to get their Covid booster jab by 11 December to ensure they have "very high protection against Covid by Christmas Day" as new evidence shows the risk of infection increases with the time since the second dose. The fresh warning comes after
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How to Talk to Your Family About Elon Musk
If your family is anything like this reporter's, chances are you have at least one relative who thinks "that Elon Musk guy" might have some good ideas. This topic is as fraught as the SpaceX founder himself — an enigma who manages to encapsulate a ton of different identities ( troll , world's richest Iron Man , and father of six , to name a few) into one infuriatingly fascinating persona. It's ha
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The Crypto-Trading Hamster Has Died of Unknown Causes
RIP The crypto-savvy hamster known as Mr. Goxx, whose portfolio beat out some of the biggest traders, has tragically passed away. "We feared this day like no other and are truly shocked for it to happen just now," the hamster's owners lamented in a tweet this morning. "In deep sorrow, we have to announce the loss of our beloved furry friend." It's a sad day for hamster lovers and cryptocurrency e
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Why e, the Transcendental Math Constant, Is Just the Best
Last month, we presented three puzzles that seemed ordinary enough but contained a numerical twist. Hidden below the surface was the mysterious transcendental number e. Most familiar as the base of natural logarithms, Euler's number e is a universal constant with an infinite decimal expansion that begins with 2.7 1828 1828 45 90 45… (spaces added to highlight the quasi-pattern in the first… Sou
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On-chip frequency shifters in the gigahertz range could be used in next generation quantum computers and networks
The ability to precisely control and change properties of a photon, including polarization, position in space, and arrival time, gave rise to a wide range of communication technologies we use today, including the Internet. The next generation of photonic technologies, such as photonic quantum networks and computers, will require even more control over the properties of a photon.
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NASA wants to use the sun to power future deep space missions
In August 2022, a NASA probe called Psyche will set out to explore a giant metallic asteroid called Psyche 16, to help scientists learn more about how planets form. The way Psyche reaches its target, though, will be different from typical NASA missions. Building on technology used in previous missions, including Dawn and Deep Space 1 , solar power will help propel Psyche into deep space. If that
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Philip Yancey's Message of Grace
O n a Sunday in late February 2007, Philip Yancey was driving on a remote highway near Alamosa, Colorado. As he came around an icy curve, his Ford Explorer began to fishtail; the tire slipped off the asphalt and the Explorer tumbled down a hillside. The windows were blown out; skis, boots, luggage, and a laptop computer were strewn over the snow. Yancey suffered minor cuts and bruises on his face
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Nasa delays James Webb space telescope launch after 'sudden' incident
Technicians were preparing to attach spacecraft to launch vehicle when unplanned event took place The launch of the $10bn (£7.5bn) James Webb space telescope has been delayed again , after an incident during the final preparations to place the telescope on top of its launch vehicle. The spacecraft was scheduled to be sent into orbit on 18 December but now it will not launch before 22 December . C
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A Visit to Churchill, Manitoba, During Polar-Bear Season
In northern Manitoba, Canada, the town of Churchill sits along the shore of Hudson Bay, just south of the Arctic Circle. The town has become world-famous for an abundance of polar bears, especially during the months of October and November. Carlos Osorio, a photographer with Reuters, has spent the past week in Churchill, taking photos of the bears, the town, and the frigid landscape, at a time of
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Study determines whether cultures play games that correspond to how cooperative they are
Play is important for the development of complex social, emotional, physical, and cognitive skills. Play provides young individuals with a safe space to practice new behaviors without grave repercussions. While most animals engage in play, only humans engage in rule-based games. Which kinds of games people play—competitive or cooperative—may depend on their cultural background. In a new study, pub
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The Atlantic Daily: Our Future With COVID
Coronavirus cases are on the rise again in the United States. Here's what we know. Not this again. As U.S. coronavirus cases creep upward once more, you might feel a justified sense of déjà vu. We still don't totally know where this pandemic is headed— too many variables are too hard to measure —but a second winter surge remains a distinct possibility. All that's left to do is wait and see (and,
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Earliest evidence of humans decorating jewelery in Eurasia
A new multidisciplinary study by an international team reports the discovery of an ivory pendant decorated with a pattern of at least 50 punctures, creating an irregular looping curve. The direct radiocarbon date of the ornament yields an age of 41,500 years. This result indicates that the Stajnia Cave jewelry is the oldest punctate ornament known to date in Eurasia, predating other instances of t
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Hubble spots a swift stellar jet in Running Man Nebula
A jet from a newly formed star flares into the shining depths of reflection nebula NGC 1977 in this Hubble image. The jet (the orange object at the bottom center of the image) is being emitted by the young star Parengo 2042, which is embedded in a disk of debris that could give rise to planets. The star powers a pulsing jet of plasma that stretches over two light-years through space, bending to th
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Sun compass on demand
Monarch butterflies are famous for their annual long-distance migration, which takes them over several thousand kilometers from the north of the USA to their overwintering habitat in central Mexico. On their migration, the conspicuously orange-black-white colored butterflies use sun information as main orientation reference.
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Scans can detect brain injury after repeated head impacts in sport
Study of former American footballers offers hope that damage could be diagnosed more easily Brain scans of former American football players reveal signs of white matter injury, according to research into the lasting effects of repetitive head impacts in sport. The finding is viewed as significant because until now it has been difficult to identify such damage in the brain until after death. The l
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A better estimate for tick numbers with 'citizen science' data
Apps and websites like eBird and iNaturalist encourage members of the public to report their observations on everything from songbird migration patterns to the presence of new planets. The result is massive datasets that far outmatch what professionally trained scientists could collect, at least in terms of quantity. However biases in the quality of data collected by "citizen scientists" sometimes
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Study highlights role of disordered protein interactions in gene expression
A team led by researchers at Baylor College of Medicine and the Czech Academy of Sciences has uncovered a new piece of the puzzle of how gene expression is orchestrated. Published in the journal Science, the findings reveal a novel mechanism that coordinates the assembly of components inside cells that control gene expression. The mechanism not only is essential for normal cell function, but also
5h
Action over variant shows government keen to avoid Christmas calamity of 2020
Analysis: variant provides test of whether relaxation of rules and booster push is effective policy South Africa to be put on England's travel red list Coronavirus – latest updates See all our coronavirus coverage Last Christmas, as ministers rashly promised five days of festive family gatherings while a new variant gathered pace, Boris Johnson held out until the final hours until he bowed to the
2h
Clear as (quasi) crystal: Scientists discover the first ferromagnetic quasicrystals
Since the discovery of quasicrystals (QCs), solids that mimic crystals in their long-range order but lack periodicity, scientists have sought physical properties related to their peculiar structure. Now, an international group of researchers report a long-range magnetic order in QCs with icosahedral symmetry that turn ferromagnetic below certain temperatures. This groundbreaking discovery opens do
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Gold-based cancer therapy could face competition from other substances
The gold complex auranofin has traditionally been used for treating rheumatism but is also being evaluated as a treatment for certain forms of cancer. Researchers now show that other molecules that inhibit the same biological system have a more specific effect than auranofin and therefore may have greater potential as cancer therapies.
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Start Black Friday Off Right With A Sam's Club Membership For Just $20
Black Friday is nearly upon us, and there are a lot of possible gifts to buy . Yet with supply chain problems and high demand, you probably won't see many sales. That's where a membership to Sam's Club can help you save on your holiday shopping, and our early Black Friday discount and food bonuses pay dividends before you buy a single gift. How Sam's Club Works Sam's Club gets discounts by using
4h
Getting quantum dots to stop blinking
Quantum dots have many possible applications, but they are limited by their tendency to blink off at random intervals. Chemists have come up with a way to control this unwanted blinking without requiring any modification to the formulation or the manufacturing process.
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Loss of ancient grazers triggered a global rise in fires
From 50,000 years to 6,000 years ago, many of the world's largest animals, including such iconic grassland grazers as the woolly mammoth, giant bison, and ancient horses, went extinct. The loss of these grazing species triggered a dramatic increase in fire activity in the world's grasslands, according to a new Yale-led study published Nov. 26 in the journal Science.
5h
Sir Eric Ash obituary
Leading figure in the field of electrical engineering whose work played a huge role in modern electronics The electrical engineer Eric Ash, who has died aged 93, made major contributions to controlling and manipulating electrical, optical and acoustic waves for signal processing and imaging applications. Already established as a leading figure in this field when he arrived at University College Lo
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How jellyfish control their lives
Nature, Published online: 24 November 2021; doi:10.1038/d41586-021-03510-6 Transgenic jellyfish reveal how these fragile creatures get by without a brain.
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Tvillingstudie ger nya ledtrådar om mekanismerna bakom typ 2-diabetes
Enäggstvillingar delar samma DNA, men är inte identiskt lika. En tvilling kan vara sjuk i typ-2 diabetes, medan den andra tvillingen inte utvecklar sjukdomen. En studie som har letts av Lunds universitet har nu upptäckt att det finns skillnader i genernas aktivitet hos tvillingar med och utan typ 2-diabetes. Forskarnas upptäckt kan bidra till utvecklingen av nya behandlingsmetoder.
8h
Humans Didn't Invent Mathematics, It's What the World Is Made Of
Many people think that mathematics is a human invention . To this way of thinking, mathematics is like a language: it may describe real things in the world, but it doesn't "exist" outside the minds of the people who use it. But the Pythagorean school of thought in ancient Greece held a different view. Its proponents believed reality is fundamentally mathematical. More than 2,000 years later, phil
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Naked in Cambodia and Arguing the Whole Time | Naked and Afraid
Stream Naked and Afraid on discovery+ ► https://www.discoveryplus.com/show/naked-and-afraid About Naked and Afraid: What happens when you put two complete strangers – sans clothes – in some of the most extreme environments on Earth? Each male-female duo is left with no food, no water, no clothes, and only one survival item. #NakedAndAfraid #Discovery #Survival Subscribe to Discovery: http://bit.l
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Gemensam ekonomi ger färre konfliker
Par som har gemensam ekonomi har färre ekonomiska konflikter än de som har delad ekonomi. Men det gäller främst för par som levt ihop länge. För yngre par är det tvärtom. Gemensam ekonomi ger färre ekonomiska konflikter för par i de flesta åldrar, i jämförelse med par som har delad eller delvis delad ekonomi. Det visar en studie av sambanden mellan pars ekonomiska konflikter och deras sätt att or
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Start Black Friday Early With Deep Savings On Babbel
Language is constantly evolving, and the future promises even more changes . Fortunately, it's never been easier to learn a new language with Babbel , and right now, for an early Black Friday Sale, you can lock in a lifetime subscription for this top-rated app at just $179 (reg. $499) for a limited time. A Language Institution First launched in 2008, Babbel has become an institution for language
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