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Second Time's the Charm: NASA Perseverance Drills a Mars Rock
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18hNASA Perseverance Mars
After a first attempt brought up an empty tube, the rover finally cored a sample.
Hestemedicin mod corona? Danske facebook-grupper spreder farligt råd
16hMedicinen Ivermectin bliver særligt i USA udråbt som kur mod covid-19, selvom dokumentationen ikke er på plads.
Coronavirus epidemics first hit more than 21,000 years ago
5hSarbecoviruses have crossed into humans twice in the last decade, leading to the deadly SARS-CoV-1 outbreak in 2002-04 and the current COVID-19 pandemic, caused by the SARS-CoV-2 virus. A new Oxford University study, published today, shows that the most recent common ancestor of these viruses existed more than 21,000 years ago, nearly 30 times older than previous estimates.
LATEST
Health Officials Advise Biden to Scale Back Covid-19 Booster Shots Plan For Now
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5hFDA Booster tWH Biden
Federal regulators warned on Thursday they may not have enough data to recommend boosters for anyone except certain recipients of the Pfizer vaccine by late September.
New USB Cable Contains Tiny Computer That Spies on Everything You Type
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2hOMG Lightning Cable
Plug and Play Next time you buy a USB cord — or take a free one from a kiosk at an event — you’ll want to make sure it doesn’t spy on every single thing you type. A cable that can do just that is now available, thanks to a pseudonymous cybersecurity researcher who goes by MG. MG told Motherboard that the so-called OMG cable looks just like any other, except for a tiny computer that can automatica
Study reveals threat of catastrophic supervolcano eruptions ever-present
11hCurtin scientists are part of an international research team that studied an ancient supervolcano in Indonesia and found such volcanoes remain active and hazardous for thousands of years after a super-eruption, prompting the need for a rethink of how these potentially catastrophic events are predicted.
The first experimental realization of a dissipative time crystal
6hA time crystal is a unique and exotic phase of matter first predicted by the American physicist Frank Wilczek in 2012. Time crystals are temporal analogs of more conventional space crystals, as both are based on structures characterized by repeating patterns.
New Zealand Is Under Lockdown to Contain Delta's Spread
16hThe country is holding fast to a lockdown to contain an outbreak that began in mid-August. But it’s also acknowledging that lockdowns can’t go on forever.
Climate change: Arctic warming linked to colder winters
22hA new study connects the heating of the Arctic region to extreme winter weather in the US.
Elon Musk: Tesla Making a Robot Because “Robots Are Coming Anyway”
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23hElon Musk Tesla Bot AI
Banging the AI Drum For years, Tesla CEO Elon Musk has warned us that artificial intelligence is coming for us all. “I’ve been banging this AI drum for a decade,” Musk told Insider last year. He’s even gone as far as saying that AI is more dangerous than nuclear war. In 2017, he said that that efforts to make AI safe only have “a five to 10 percent chance of success.” Which makes his recent annou
6 Strategies To Make Classrooms Safer As The Delta Variant Spreads
8hResearch shows increasingly that layering one strategy on top of another can help minimize the spread of the coronavirus in classrooms. (Image credit: Brandon Bell/Getty Images)
A Unique Mixture of Salts Could Have Sparked Life on Primordial Earth, Study Hints
17hA recipe for RNA folding.
Perseverance Just Drilled a 'Perfect' Rock Sample After The First One Crumbled
19hJust look at that hole!
Paddle boarder's close encounter with two curious whales
20hA drone filmed what the paddle boarder, out on the water on her birthday, calls a "magical moment".
Reuniting an Orphan Elephant and Her Mom, Perhaps, With DNA and Luck
5hNania beat the odds to survive separation from her forest elephant family in Burkina Faso. Her caretakers hope DNA testing may help return her to the wild with her family.
Drop nøgler som knojern og falske opkald: Ekspert guider dig til en sikker tur hjem fra byen
8hAt kunne nedtrappe en konflikt er lige så vigtigt for din sikkerhed som at kunne slås.
What We Actually Know About Waning Immunity
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8hCovid Immunity
Vaccines don’t last forever. This is by design: Like many of the microbes they mimic, the contents of the shots stick around only as long as it takes the body to eliminate them, a tenure on the order of days, perhaps a few weeks . What does have staying power, though, is the immunological impression that vaccines leave behind. Defensive cells study decoy pathogens even as they purge them; the rec
The Women Burning Their Degree Certificates
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9hTaliban Afghanistan
When the last of the remaining United States forces departed from Afghanistan this week, they took with them more than 100,000 people, some of whom were Afghanistan’s most educated and skilled citizens. For these politicians, artists, scholars, and activists, the withdrawal represented not only the end of their country as they knew it, but the end of any hope they might have had in helping shape
Your Next Car May Be Built With Ocean Rocks. Scientists Can't Agree If That's Good
10hDeep sea mining could provide minerals essential for making electric vehicles. But regulations are incomplete, and questions persist about the impact on the ocean's ability to store carbon dioxide. (Image credit: NOAA Office of Ocean Exploration and Research)
A Bird in an Australian Zoo Has Learned to Perfectly Mimic a Crying Human Baby
13hWhat a disturbing talent.
Is This How Democrats Break Their Midterm Curse?
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8hDemocrats Texas Roe
The new Texas law that bans abortion after a fetal heartbeat is detected—and which the Supreme Court has so far declined to block—is an enormous blow to abortion rights in America. But Democrats, who tend to support abortion access, aren’t all doom-and-gloom about the measure. The thinking among some in the party goes like this: An abortion ban is terrible for women—but it’s great for ginning up
WHO Has Named a New COVID 'Variant of Interest'. Here's What You Need to Know
15hIt's called the Mu variant.
Climate Change Is Already Rejiggering Where Americans Live
6hWhen I met Flynn Hoob on Monday, he was standing in front of his home. Or rather, what was left of his home. It was the day after Hurricane Ida , and Hoob’s one-story house in Bourg, Louisiana, had fallen off its concrete pilings and sunk halfway into the nearby bayou. He had ridden out the storm inside until his house had tipped over, at which point he fled to the flooded-out bar next door and w
SpaceX Shows Off Beautiful Dome for Next Month’s Space Tourists
6hDragon Cupola SpaceX has made an exciting new modification to its Crew Dragon spacecraft that will carry the first all-civilian astronaut crew around the Earth later this month. The capsule was outfitted with a “Cupola ,” which Musk described as a “glass dome ” in a tweet earlier this year, that will offer the crew of four an unparalleled look at the Earth — and the space beyond it — from hundred
The Problem With Being Cool About Sex
8hIllustration by Vartika Sharma; source: Alberto Rizzo / Getty T racy Clark-Flory’s memoir , Want Me , is subtitled A Sex Writer’s Journey Into the Heart of Desire , and it begins with an arresting anecdote: Two male porn actors on a set in Los Angeles are complaining to her about “girls these days.” One actor is called Tommy Gunn, because where would pornography be without puns? The other uses hi
The Justices Are Telling Us What They Think About Roe v. Wade
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9hRoe Democrats Texas
The five justices who upheld Texas’s anti-abortion law in the middle of the night this week insisted that their hands were tied: Texas had invoked sovereign immunity , and abortion providers had not proved that the state was wrong. Above all, the majority warned people not to overreact. Women in Texas might not be able to get an abortion anymore, and abortion providers might have already shut dow
First Study of Its Kind Finally Reveals How Dying Trees Affect Earth's Carbon Cycle
15hAn important part of living ecosystems.
UK benefits ban spells ‘destitution’ for migrants, says think-tank
21hMinisters plan to increase number of people on visas that deny access to public funds
Edmond H. Fischer, 101, Who Helped Discover How Cells Talk, Dies
22hHe and a colleague identified a mechanism by which cells communicate, a Nobel-winning breakthrough that paved the way for disease-fighting drugs.
Elon Musk Carefully Says Nothing About Texas Abortion Ban
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2hElon Musk Texas Abbott
Texas governor Greg Abbott told CNBC on Thursday — or at least heavily implied — that Tesla and SpaceX CEO Elon Musk had private expressed support for the state’s draconion new abortion law. The law amounts to a de facto ban on abortion in the state , and has been condemned by many as an egregious overreach , a contradiction of legal precedent, and an active assault on personal freedoms. But the
Rocket Explodes Spectacularly During Launch
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5hFirefly Alpha Rocket
Big Boom Rocket startup Firefly Aerospace’s Alpha rocket exploded spectacularly during its launch on Thursday — an unfortunate end to the first-ever launch of the rocket. The rocket lifted off from Space Launch Complex 2 at the Vandenberg Space Force Base in California at around 10 pm Eastern. But two and a half minutes into its maiden voyage, the rocket started to tumble — and subsequently blew
A Slow and Quiet Calamity
7hRare is the New Orleans tourist who doesn’t visit the French Quarter, the 13-block neighborhood sitting at the edge of the Mississippi River. Residents, too, are accustomed to its sounds and smells and images, which together have come to represent our hometown, one of the most special places in the world. I think of the city I come from every day—especially now. At the top of a pair of stairways
Breeding seabird numbers in Scotland almost halved since 1980s
7hA new study by NatureScot looked at 11 species of breeding birds in Scotland over the last 35 years.
Richard Lewontin's Legacy of Fighting Racism in Science
8hThe late evolutionary biologist made a reputation—and enemies—by speaking out against the idea that genes are destiny. Science still needs people like him.
The Coming Wave of Evictions Is More Than a Housing Crisis
8hOver the past year and a half, a series of local, state, and national eviction bans has prevented millions of Americans from losing their home in the middle of a pandemic. But last week, a national moratorium put in place by the CDC was rejected by the Supreme Court. “Really concerning,” “quite bad,” and “a huge problem” are three ways that housing experts I spoke with characterized the wave of e
8-foot-tall pagan idol unearthed in Irish bog
8hA wooden pole made from an oak tree trunk and carved into the shape of a pagan idol 1,600 years ago has been unearthed in a bog in Ireland.
World's largest rodents are taking over a fancy gated community in Argentina
8hCapybaras have overrun a gated community in Argentina which was controversially built over their original habitat.
New York City Wasn’t Built for 21st Century Storms
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9hNew York Ida NYC Climate
Deadly flooding in and around New York City dramatizes the risks to infrastructure that wasn’t built to handle warmer, wetter climate.
A Dishonorable Exit
9h“Honour is often influenced by that element of pride which plays so large a part in its inspiration,” Winston Churchill wrote in The Gathering Storm . “An exaggerated code of honour leading to the performance of utterly vain and unreasonable deeds could not be defended, however fine it might look. Here, however, the moment came when Honour pointed the path of Duty, and when also the right judgmen
Climate crisis likely creating extreme winter weather events, says report
11hArctic change increased chances of tightly spinning winds above North Pole, authors say, boosting chances of extreme weather The climate crisis has not only been leaving deadly heatwaves and more destructive hurricanes in its wake, but also probably creating extreme winter weather events, according to a new report released on Thursday by the American Association for the Advancement of Science’s j
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Spacewatch: James Webb telescope finally ready for launch
14hSuccessor to Hubble has been hit by delays and a ballooning budget since work began on it in 1996 Nasa has completed the final tests of the James Webb space telescope and is now preparing it for transportation to the launch site in Kourou, French Guiana. Webb is Nasa’s successor to the ageing Hubble space telescope. Work on it began way back in 1996. Back then, it was called the Next Generation s
Large UK Study Indicates a Simple Health Intervention to Reduce Risk of Long COVID
18hIt rhymes with 'motivation'.
New Orleans Was Already a 'Heat Island.' Then Ida Cut Power
22hUrban areas soak up the sun’s energy, dramatically raising temperatures. In the hurricane’s aftermath, Louisiana is sweltering without AC.
Wild cockatoos observed making and using tools to eat sea mango pits
5hA team of researchers from the University of Vienna working with a colleague at the Indonesian Institute of Sciences has observed wild Goffin's cockatoos making and using tools to crack open and eat sea mangos—the first-ever example of a wild non-primate making and using a set of tools. They've published their observations in the journal Current Biology.
‘Hycean’: a portmanteau of hydrogen and ocean that’s not so far, far away
13hThis new class of planet hoped by scientists to harbour alien life is a hot waterworld. Let’s stop Earth turning into one Astronomers have begun scrutinising a new class of planet that might support alien life: the hycean . This is a portmanteau coinage combining “hydrogen” and “ocean”, since the planets are hot waterworlds with hydrogen-rich atmospheres. In ancient Greek, Oceanus was the great r
Alien-like cookiecutter sharks terrorize animals of all sizes
8hCookiecutter sharks rip small, cookie-shaped chunks out of sharks and whales much larger than themselves, but a new study finds these big animals make up only a small part of their diet.
Artistic giant Michelangelo was actually quite short
8hA new analysis of shoes that may have belonged to the Renaissance artist Michelangelo revealed his small stature.
A generation of young people is at risk from the UK’s latest Covid experiment
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6hUK JCVI Covid 12 Years
The country is an international outlier in restoring in-person learning without mitigations or vaccination of 12 to 15-year-olds
Se hur den iskalla polarvinden drivs söderut
5hNu har forskare sett ett direkt samband mellan uppvärmningen av Arktis och den extremkyla som drabbade Texas i februari i år. Den kalla polarvinden bytte riktning och istället för att snurra runt Arktis vek den söderut över Nordamerika. Spela videon för att se hur vindarna åkte söderut.
The Atlantic Daily: How Texas Citizens Won the Right to Be Anti-Abortion Vigilantes
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4hBiden Texas Abortion
A controversial and strange new Texas law empowers private citizens to sue (and collect $10,000 for successfully suing) anyone who performs, aids, or abets an abortion after the sixth week of pregnancy, before many women know they are pregnant. The fight over that law got more convoluted last night. At first, the Supreme Court didn’t respond to an emergency petition to strike down the legislation
Unified theory explains how materials transform from solids to liquids
7hYears of meticulous experimentation have paid off for researchers aiming to unify the physics that defines materials that transition from solids to liquids. The researchers said a new theoretical model could help develop new synthetic materials and inform and predict civil engineering and environmental challenges such as mudslides, dam breaks and avalanches.
Quantum of solace: even physicists are still scratching their heads | Letters
5hReaders respond to an editorial about understanding quantum theory and defining the laws of physics Your editorial on quantum physics ( 30 August ) starts with a quote from Richard Feynman – “nobody understands quantum mechanics” – and then says “that is no longer true”. One of us (Norman Dombey) was taught quantum theory by Feynman at Caltech; the other (John Charap) was taught by Paul Dirac at
Scientists Thrilled at Important Step Toward Practical Nuclear Fusion
1hVictory Lap A team of nuclear physicists are celebrating what they say is a huge step toward a practical nuclear fusion reactor. Nuclear fusion, if scientists ever manage to figure it out, could provide a bounty of clean energy — and potentially a clear path in the transition away from fossil fuels. But the technology to recreate the sort of reaction happening inside of stars in a controlled sett
Why Ransomware Hackers Love a Holiday Weekend
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9hFBI CISA Labor Day
Looking forward to Labor Day? So are ruthless gangs of cybercriminals.
Research shows dogs can relate human emotions to subsequent actions
5hNew research has shed light on how an understanding of human emotions by man's best friend can help them predict our behavior and informs their decision making.
'Perfect' Mars rock sample drilled from the Red Planet in historic mission
21hFollowing a botched first attempt, NASA's Mars Perseverance rover successfully collected a pencil-thin Martian rock core sample.
Apple Backs Down on Its Controversial Photo-Scanning Plans
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3hApple Delays Child CSAM
A sustained backlash against a new system to look for child sexual abuse materials on user devices has led the company to hit pause.
Highly dynamic sex chromosomes in cichlid fishes
6hThe cichlids of Lake Tanganyika in Africa are highly diverse—including with regard to sex chromosomes. These have changed extremely frequently in the course of the evolution of these fish and, depending on the species, can be of the type XY or ZW. This has been reported by a research team from the University of Basel and the Research Museum Koenig in Bonn in the scientific journal Science Advances
The Great Divide over living with the virus
11h‘Zero Covid’ strategies in Asia-Pacific are becoming ever harder to sustain
Tests can help get workers back to the office
7hA fresh push on fast and reliable Covid diagnostics is needed to supplement the vaccine effect
How Ida dodged NYC’s flood defenses
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3hNew York Ida Climate
Floods killed at least two dozen people as Hurricane Ida swept through New York, New Jersey, and Pennsylvania on the night of September 1. This devastation is on top of the 13 who died and the million who lost power when the storm hit Louisiana, Mississippi, and Alabama last weekend. As the storm moved up the East Coast, New York City was hit particularly hard. Over three inches of rain fell in C
Researchers develop an engineered 'mini' CRISPR genome editing system
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5hCRISPR CasMINI Swiss
The common analogy for CRISPR gene editing is that it works like molecular scissors, cutting out select sections of DNA. Stanley Qi, assistant professor of bioengineering at Stanford University, likes that analogy, but he thinks it's time to reimagine CRISPR as a Swiss Army knife.
290-million-year-old shark with large petal-shaped teeth found in China for the first time
6hThe fossil of a 290-million-year-old shark with petal-shaped teeth was found in China for the first time, according to Gai Zhikun, an associate researcher at the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences. The Petalodus teeth were found in the Qianshi limestone in Yangquan City, north China's Shanxi Province.
NASA Claims Rover Collected Mars Rock, But We Wanna See Proof
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4hNASA Perseverance Mars
Take Two NASA says that its Perseverance rover has finally succeeded at drilling, gathering, and storing samples of Martian rock after a second attempt on Wednesday. The rover drilled through a new rock, nicknamed “Rochette,” stuffed the sample into one of its storage vials, and snapped a photo as proof, The New York Times reports . For all intents and purposes, that’s a great success story — esp
‘Final Girls’ Make the Best Horror Movie Heroes
4hThe female characters who survive until the end of the film are the antidote to the movie's cycle of violence.
Optimal lifting of COVID-19 restrictions would follow pace of vaccination, study suggests
17hA new analysis suggests that, in order to boost freedoms and protect against overwhelming new waves of COVID-19, the pace at which restrictions to reduce spread are lifted must be directly tied to the pace of vaccination.
The 20 Best Hiking and Camping Deals for Labor Day
9hThis is our favorite time to hit the trails. Here's what you need to make the outdoors feel like home.
Scientists Build Molecule-Sized “Camera” To Watch Chemical Reactions in Real-Time
33minEnhance! University of Cambridge scientists have gotten an unprecedented glimpse at chemical reactions in real-time, thanks to a new molecule-sized “camera.” The device, little more than a clump of gold nanoparticles, semiconductor nanocrystals called quantum dots , and a molecular “glue,” uses a process similar to photosynthesis to reveal exactly what’s happening while various molecules interact
Chicago Claims DoorDash and Grubhub Misled Customers on Fees
8hThe city capped commissions on restaurant deliveries amid the pandemic, but it says the apps added new fees and marketed deceptive promotions.
Graphene made with lasers for wearable health devices
5hGraphene, hexagonally arranged carbon atoms in a single layer with superior pliability and high conductivity, could advance flexible electronics according to a Penn State-led international research team. Huanyu "Larry" Cheng, Dorothy Quiggle Career Development Professor in Penn State's Department of Engineering Science and Mechanics (ESM), heads the collaboration, which recently published two stud
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Hurricanes, Solar Storms, and the Fight to Keep the Power On
8hThis week, we look at what happened to New Orleans’ electrical grid in Ida’s wake, and we learn how a major solar eruption could knock out the internet.
Photos of the Week: Octopus Kite, High Water, Little Amal
15hScenes from the 2020 Paralympics in Tokyo, flash flooding in Spain and the U.S., snowfall in South Africa, devastation left by Hurricane Ida, a crash at the British Grand Prix, the Caldor wildfire in California, a light show in Antwerp, a new eruption at Mount Etna, and much more
A Friendship That Fuels a Bigger Notion of Family
5hEach installment of “ The Friendship Files ” features a conversation between The Atlantic ’s Julie Beck and two or more friends, exploring the history and significance of their relationship. This week she talks with two couples—Jenny and Marisa (parents to Atlas and Blaise), and Lora and Michelle (parents to Finnley and Tegan)—who had their children using the same sperm donor . Though they origin
Examining the link between body image and income
3hWhat started as a casual dinner conversation between two very different researchers in 2016—one a data scientist and engineer, the other an expert in economic models—has since turned into a journal article quantifying the effects of the "beauty premium," the notion that those who are more physically attractive tend to have a greater income.
Lenovo's Laptop-Tablet ThinkPad Goes After the Surface
8hWant to live that hybrid life—without sacrificing a good keyboard or battery life? The X12 Detachable is the machine for you.
Former Tufts grad student settles lawsuit alleging retaliation for whistleblowing
21hA former veterinary student at Tufts University has settled a $1 million lawsuit alleging that she was punished for claiming that her mentor at the school falsified data in a 2014 article. In 2019, Kristy Meadows sued Tufts and two faculty members, Elizabeth Byrnes and Dean Joyce Knoll, whom she said retaliated against her for … Continue reading
Forest fires linked to tens of thousands of avoidable deaths
23hSetting fire to forest and agricultural land in Southeast Asia to prepare it for cultivation or grazing contributes to an estimated 59,000 premature deaths a year, say scientists.
Covid Misinformation Protests, Pediatric Cases, and More News
2hCatch up on the most important updates from this week.
Wired for efficiency: How methanogenic microbes manage electrons
6hMethanogenic archaea use sophisticated enzyme systems to live in energy-limited anoxic environments. A key mechanism for saving energy is electron bifurcation, a reaction that 'splits' the energy of a pair of electrons, making one more strongly reducing at the expense of the other. Researchers from the Max Planck Institutes for Terrestrial Microbiology (Marburg) and Biophysics (Frankfurt am Main)
Helping Australia’s threatened wildlife thrive – in pictures
5minA small team of ecologists and scientists are working to find new ways to bolster populations of Australia’s endangered native animals Continue reading…
Vaccines on horseback: Fiji doctors take long and muddy road to protect remote villages from Covid
5minA team of medics hiked in the mountains for hours to take supplies to the small village of Nakida See all our coronavirus coverage To reach Nakida village in the highlands of Fiji, Dr Losalini Tabakei and her colleagues hiked for hours, up and down mountains, through forests, down muddy slopes, across rivers and along treacherous ridges with steep slopes of bamboo forest on either side. Their sup
Covid treatment improving as doctors learn to fight the disease and access new drugs
5minCoronavirus patients with high-risk comorbidities are being given a newly approved antibody drug, which limits the virus’s ability to replicate in the body Follow our Covid live blog for the latest updates Restrictions: NSW ; Vic ; Qld ; borders Vaccine rollout tracker ; get our free news app ; get our morning email briefing Australia’s treatment of Covid-19 patients has improved with doctors cla
Thousands of kilometres from anywhere lies Point Nemo, a watery grave where space stations go to die
5minThe space cemetery, named for the fictional captain in 20,000 Leagues Under the Sea, is where the International Space Station is likely to end up At the furthest point from any landmass on earth, and 4km under the sea, lies the space cemetery. When their outer space journeys come to an end, old satellites, rocket parts and space stations are sent to this desolate spot in the Pacific Ocean to rest
Lawmakers Request Information About Alzheimer's Drug Approval
15minThe FDA granted the drug, called Aduhelm, accelerated approval earlier this summer in a process that's since drawn scrutiny.
Stem-like T cells could aid immunotherapy in cancer treatment
39minResearchers show stem-like T cells within certain lymph nodes could be natural cancer fighters.
Why Haven’t Humans Reached Mars?
53minOur neighboring planet only sits 34 billion miles away, so what’s the big hold up?
Biden seeks $65bn to deal with future pandemics
1hThe US would set up a ‘mission control’ to prepare for future outbreaks and streamline vaccine process
Would you wear clothes made of synthetic muscle fibers?
1hResearchers have found a way to make a muscle protein and spin it into incredibly strong fibers. Their synthetic chemistry approach allowed them to polymerize proteins inside of engineered microbes, which then produced the high molecular weight muscle protein, titin. In the future, such material could be used for clothing, or even for protective gear. “Its production can be cheap and scalable. It
Making methane from CO2: Carbon capture grows more affordable
1hResearchers can make methane from captured CO2 and renewably sourced hydrogen, offering a path toward cheaper synthetic natural gas.
Who will buy 'Big John,' the biggest triceratops ever found?
1hThe largest triceratops in the world, scheduled to be auctioned on Oct. 21, will be on display to the public in Paris beginning Sept. 16.
Defects in 8-oxo-guanine repair pathway cause high frequency of C > A substitutions in neuroblastoma [Genetics]
1hNeuroblastomas are childhood tumors with frequent fatal relapses after induction treatment, which is related to tumor evolution with additional genomic events. Our whole-genome sequencing data analysis revealed a high frequency of somatic cytosine > adenine (C > A) substitutions in primary neuroblastoma tumors, which was associated with poor survival. We…
Sphingolipid metabolism governs Purkinje cell patterned degeneration in Atxn1[82Q]/+ mice [Neuroscience]
1hPatterned degeneration of Purkinje cells (PCs) can be observed in a wide range of neuropathologies, but mechanisms behind nonrandom cerebellar neurodegeneration remain unclear. Sphingolipid metabolism dyshomeostasis typically leads to PC neurodegeneration; hence, we questioned whether local sphingolipid balance underlies regional sensitivity to pathological insults. Here, we investigated the regio
Bcl6 controls meningeal Th17-B cell interaction in murine neuroinflammation [Immunology and Inflammation]
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1hCell RNA Cancer 2 10
Ectopic lymphoid tissue containing B cells forms in the meninges at late stages of human multiple sclerosis (MS) and when neuroinflammation is induced by interleukin (IL)-17 producing T helper (Th17) cells in rodents. B cell differentiation and the subsequent release of class-switched immunoglobulins have been speculated to occur in the…
Influenza A viruses balance ER stress with host protein synthesis shutoff [Microbiology]
1hExcessive production of viral glycoproteins during infections poses a tremendous stress potential on the endoplasmic reticulum (ER) protein folding machinery of the host cell. The host cell balances this by providing more ER resident chaperones and reducing translation. For viruses, this unfolded protein response (UPR) offers the potential to fold…
Translational value of choroid plexus imaging for tracking neuroinflammation in mice and humans [Immunology and Inflammation]
1hNeuroinflammation is a pathophysiological hallmark of multiple sclerosis and has a close mechanistic link to neurodegeneration. Although this link is potentially targetable, robust translatable models to reliably quantify and track neuroinflammation in both mice and humans are lacking. The choroid plexus (ChP) plays a pivotal role in regulating the trafficking…
Quantum teleportation of physical qubits into logical code spaces [Physics]
1hQuantum error correction is an essential tool for reliably performing tasks for processing quantum information on a large scale. However, integration into quantum circuits to achieve these tasks is problematic when one realizes that nontransverse operations, which are essential for universal quantum computation, lead to the spread of errors. Quantum…
Task complexity moderates group synergy [Social Sciences]
1hComplexity—defined in terms of the number of components and the nature of the interdependencies between them—is clearly a relevant feature of all tasks that groups perform. Yet the role that task complexity plays in determining group performance remains poorly understood, in part because no clear language exists to express complexity…
Mechanism of Staphylococcus aureus peptidoglycan O-acetyltransferase A as an O-acyltransferase [Microbiology]
1hThe O-acetylation of exopolysaccharides, including the essential bacterial cell wall polymer peptidoglycan, confers resistance to their lysis by exogenous hydrolases. Like the enzymes catalyzing the O-acetylation of exopolysaccharides in the Golgi of animals and fungi, peptidoglycan O-acetyltransferase A (OatA) is predicted to be an integral membrane protein comprised of a…
Calmodulin extracts the Ras family protein RalA from lipid bilayers by engagement with two membrane-targeting motifs [Biochemistry]
1hRalA is a small GTPase and a member of the Ras family. This molecular switch is activated downstream of Ras and is widely implicated in tumor formation and growth. Previous work has shown that the ubiquitous Ca2+-sensor calmodulin (CaM) binds to small GTPases such as RalA and K-Ras4B, but a…
DeepLINK: Deep learning inference using knockoffs with applications to genomics [Biophysics and Computational Biology]
1hWe propose a deep learning–based knockoffs inference framework, DeepLINK, that guarantees the false discovery rate (FDR) control in high-dimensional settings. DeepLINK is applicable to a broad class of covariate distributions described by the possibly nonlinear latent factor models. It consists of two major parts: an autoencoder network for the knockoff…
On the microstructural origin of brain white matter hydraulic permeability [Neuroscience]
1hBrain microstructure plays a key role in driving the transport of drug molecules directly administered to the brain tissue, as in Convection-Enhanced Delivery procedures. The proposed research analyzes the hydraulic permeability of two white matter (WM) areas (corpus callosum and fornix) whose three-dimensional microstructure was reconstructed starting from the acquisition…
STING-driven interferon signaling triggers metabolic alterations in pancreas cancer cells visualized by [18F]FLT PET imaging [Medical Sciences]
1hType I interferons (IFNs) are critical effectors of emerging cancer immunotherapies designed to activate pattern recognition receptors (PRRs). A challenge in the clinical translation of these agents is the lack of noninvasive pharmacodynamic biomarkers that indicate increased intratumoral IFN signaling following PRR activation. Positron emission tomography (PET) imaging enables the…
Activity-based photoacoustic probe for biopsy-free assessment of copper in murine models of Wilson’s disease and liver metastasis [Applied Biological Sciences]
1hThe development of high-performance photoacoustic (PA) probes that can monitor disease biomarkers in deep tissue has the potential to replace invasive medical procedures such as a biopsy. However, such probes must be optimized for in vivo performance and exhibit an exceptional safety profile. In this study, we have developed PACu-1,…
Conceptual-based design of an ultrabroadband microwave metamaterial absorber [Applied Physical Sciences]
1hBy introducing metallic ring structural dipole resonances in the microwave regime, we have designed and realized a metamaterial absorber with hierarchical structures that can display an averaged −19.4 dB reflection loss (∼99% absorption) from 3 to 40 GHz. The measured performance is independent of the polarizations of the incident wave…
Coronavirus induces diabetic macrophage-mediated inflammation via SETDB2 [Immunology and Inflammation]
1hCOVID-19 induces a robust, extended inflammatory “cytokine storm” that contributes to an increased morbidity and mortality, particularly in patients with type 2 diabetes (T2D). Macrophages are a key innate immune cell population responsible for the cytokine storm that has been shown, in T2D, to promote excess inflammation in response to…
Gut and heart signals affect how we see ourselves
1hResearch has discovered that the strength of the connection between our brain and internal organs is linked to how we feel about our appearance. The study has investigated the association between body image and the brain's processing of internal signals that occur unconsciously. It found that adults whose brains are less efficient at detecting these internal messages are more likely to experience
New food freezing concept improves quality, increases safety and cuts energy use
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1hNFSEM Safety Month
Shifting to a new food freezing method could make for safer and better quality frozen foods while saving energy and reducing carbon emissions, according to a new study. A complete change over to this new method of food freezing worldwide could cut energy use by as much as 6.5 billion kilowatt-hours each year while reducing the carbon emissions that go along with generating that power by 4.6 billio
Author Correction: CO2 doping of organic interlayers for perovskite solar cells
1hNature, Published online: 03 September 2021; doi:10.1038/s41586-021-03839-y Author Correction: CO 2 doping of organic interlayers for perovskite solar cells
Covid jabs for UK children: a very tight decision that could be overruled
1hAnalysis: The JCVI would not back vaccination of all 12 to 15-year-olds, but the impact on schools will now have to be considered Coronavirus – latest updates See all our coronavirus coverage It was, the scientists said, a very finely balanced decision. On the one hand, Covid vaccines undoubtedly help to reduce infection and illness. On the other, Covid vaccines – like every other vaccine in medi
Publisher Correction: Live cell tagging tracking and isolation for spatial transcriptomics using photoactivatable cell dyes
1hNature Communications, Published online: 03 September 2021; doi:10.1038/s41467-021-25672-7
Why Trusting Your Gut Instinct Isn't Always The Best Move, According to Science
2hIt could explain how misinformation spreads.
Sudden cardiac episodes could be caused by 'deadly cocktail'
2hIt has been a mystery why some people live a perfectly normal life until experiencing a potentially deadly cardiac episode. Now, researchers present a possible explanation in a microscopic modification of a protein, which causes a mutation to turn harmful. The knowledge could help future diagnosis and drug regimens.
Many with food allergies don’t know about oral immunotherapy treatment option
2hA study of a geographically, clinically, and socioeconomically diverse, nationally-representative sample of US households — including both adult patients and caregivers of children with food allergy — found that 72 percent did not know what oral immunotherapy (OIT) was prior to the survey. Researchers also discovered that current OIT awareness is disproportionately elevated among wealthier, more
Concussion recovery takes up to 28 days, not 14
2hThe largest study of concussion ever conducted in college athletes redefines the timeline for recovery from the suggested normal recovery time of up to 14 days to up to 28 days. “Normal return-to-play time was previously set at 14 days–meaning 50% of people recovered in that time. Our paper suggests that 28 days more fully encapsulates the recovery process. At that point, 85% of people have retur
Planetary radar observes 1,000th near-earth asteroid since 1968
2hOn Aug. 14, 2021, a small near-Earth asteroid (NEA) designated 2021 PJ1 passed our planet at a distance of over 1 million miles (about 1.7 million kilometers). Between 65 and 100 feet (20 and 30 meters) wide, the recently discovered asteroid wasn't a threat to Earth. But this asteroid's approach was historic, marking the 1,000th NEA to be observed by planetary radar in just over 50 years.
Author Correction: High-density information storage in an absolutely defined aperiodic sequence of monodisperse copolyester
3hNature Communications, Published online: 03 September 2021; doi:10.1038/s41467-021-25676-3
Cracking a mystery about Vesta, our solar system’s second largest asteroid
3hVesta is the second largest asteroid in our solar system and believed to be a proto-planet. NASA's Dawn spacecraft visited Vesta in 2011. The mission revealed two massive impact craters and some odd troughs encircling them. The asteroid Vesta is the second largest asteroid in the solar system's asteroid belt, with a diameter of about 330 miles. (Ceres is the biggest.) It is the brightest asteroid
Zebra finches can recognize songs by their beat
3hLike humans, zebra finches can recognize songs by their rhythmic patterns, even when played at very different tempos, according to new research. If you have ever been moved by the beat of a drum or enchanted by a song, or if you have meandered through YouTube to watch animals from elephants to dancing cockatoos swaying and bopping to music, you might suspect that there is an instinctive and prima
Living It Up on the Hotel California Tour
3hRock and roll’s relationship with time—as in Father Time, not, you know, tempo —is fascinating. Men and women barely into their 20s, dewy young people without a mark on them, somehow contrive to write songs of shattering, been-there maturity. Whiskery wisdom ballads, epics of regret, failure binge blues, and howling prophetic voyages. Wide-eyed they sing them, these songs of experience. And then
Belgium creates garbage highway for flood victims' waste
3hIn eastern Belgium, an abandoned highway is almost completely buried under kilometres of piled-up rubbish: crushed refrigerators, splintered furniture, torn curtains, twisted metal, stuffed toys, defunct electronics and shards of glass.
Climate change in the spotlight after northeast US floods
3hThe role of climate change in New York's deadly flash floods and the city's creaking infrastructure were under the spotlight Friday after torrential rains left at least 47 people dead across the US northeast.
Author Correction: Lipidomics of facial sebum in the comparison between acne and non-acne adolescents with dark skin
3hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97802-6
Author Correction: Effects of climate variation on bird escape distances modulate community responses to global change
3hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97174-x
Exploring the mysteries of drug-resistant bacterial pathogens
3hFor the past 20 years, it's been Les Shaw's mission to unravel the mysteries of drug-resistant bacterial pathogens.
Validation of asset based lending by grazing cattle using AI
3hA joint project team in Japan have started field testing for Asset-Based Lending (ABL) applicability at Kuroshima Sakura Farm in Kuroshima island, Okinawa prefecture, which is known for the world-famous "Wagyu" cattle industry. The ABL approach employs cattle behavior monitoring system "PETER" developed by the project team aimed for labor-saving grazing management using edge-AI and LPWA (Low Power
This Room Can Wirelessly Charge Devices Anywhere Within Its Walls
3hToday, wireless charging is little more than a gimmick for high-end smartphones or pricey electric toothbrushes. But a new approach that can charge devices anywhere in a room could one day allow untethered factories where machinery is powered without cables. As the number of gadgets we use has steadily grown, so too has the number of cables and chargers cluttering up our living spaces. This has s
Freak US winters linked to Arctic warming
3hNature, Published online: 03 September 2021; doi:10.1038/d41586-021-02402-z Models suggest that distortions in polar-vortex winds can send chilly air hurtling southwards. But some climate scientists remain unconvinced.
Ministers ask UK’s top health officials to assess Covid jabs for teenagers
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3hUK JCVI Covid 12 15
Expert advice sought as benefits and potential harms of vaccine for age group are ‘finely balanced’
What are antioxidants?
3hAntioxidants are powerful protective chemicals found in fruits, vegetables and many other foods.
Apple Is Delaying Plans to Scan Phones for Child Abuse Material
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3hApple Delays Child CSAM
Apple has announced that it’s officially delaying the rollout of its controversial plans to scan iPhones for child sexual abuse material (CSAM), The Verge reports . “Last month we announced plans for features intended to help protect children from predators who use communication tools to recruit and exploit them, and limit the spread of Child Sexual Abuse Material,” Apple wrote in a statement. It
Testing 1-2: New laser-based microphone calibration measures up
3hResearchers have conducted the first demonstration of a faster and more accurate way to calibrate certain kinds of microphones. The technique, which uses lasers to measure the velocity at which a microphone's diaphragm vibrates, performs well enough to overtake one of the main calibration methods used.
If You’re Not Using a VPN To Protect Your Privacy, You Have No Privacy
4hIt’s no secret that the Internet is not a safe space. Whether you’re innocently browsing the web, working from home, or simply streaming your favorite TV shows, someone is watching, and scammers are waiting to pounce. Methods such as phishing and credit card fraud are becoming all too common. This problem is made even worse by free WI-Fi found at coffee shops, airports, and other public places. T
New Tech Can Reveal a Vast Network of Methane Leaks
4hBut it is unclear if oil and gas companies and their regulators will respond — Read more on ScientificAmerican.com
Author Correction: Quantitative spectrofluorometric assay detecting nuclear condensation and fragmentation in intact cells
4hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97792-5
Author Correction: Uncertainty in experts’ judgments exposes the vulnerability of research reporting anecdotes on animals’ cognitive abilities
4hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97806-2
App-based self-test program improves HIV detection
4hA new app-based HIV self-test program not only successfully linked participants to counseling services and care, but also detected new infections and increased referrals to self-test. In the shadow of the COVID-19 pandemic, HIV continues to be a major global public health issue, affecting an estimated 40 million people. “Our study shows that a flexible, anonymized, secure, app-based digital progr
Scientists discover a mechanism for memory transfer between individuals in C. elegans
4hResearchers demonstrated that the microscopic worm C. elegans uses a retrotransposon called Cer1 to transfer a learned behavior (avoidance of a pathogenic bacterium) between worms.
Mountaintop mining causes 40% loss of aquatic biodiversity
4hUsing environmental DNA scans of Appalachian streams, researchers found that the effects of mountaintop coal mining in West Virginia are even more widespread than previously reported: Streams from heavily mined watersheds harbor 40% fewer species than streams with cleaner water.
Maskiningeniør og jazzmusiker udvikler 3D-printet elektrisk violin
4hFranske Laurent Bernadac har formået at blande sine to passioner, ingeniørfaget og musikken, og lever nu af at sælge sin 3Dvarius og give koncerter med den i hele verden.
Epilepsy brain implant does not transform patients’ sense of self or personality but offers them new insights into illness, study shows
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4hEpilepsy Brain Self
A next-generation brain implant currently in clinical use for treating refractory epilepsy — to help prevent symptoms including seizures — does not induce changes to patients' personalities or self-perceptions, a new study of patient experiences shows.
HPV vaccination will reduce throat and mouth cancers, but overall impact will take 25-plus years to see
4hVaccinations against human papillomavirus (HPV), a major cause of throat and back of mouth cancers, are expected to yield significant reductions in the rates of these cancers in the U.S., but will not do so until after 2045, according to a new modeling study.
Surprise result for solid state physicists hints at unusual electron behavior
4hWhile studying the behavior of electrons in iron-based superconducting materials, researchers observed a strange signal relating to the way electrons are arranged. The signal implies a new arrangement of electrons the researchers call a nematicity wave, and they hope to collaborate with theoretical physicists to better understand it. The nematicity wave could help researchers understand the way el
Minor cell population plays major role in triggering a silent subset of inherited MDS cases
4hCancer research experts report on discovering a rare population of cells that help create a polluted bone marrow environment that in turn allows other mutated cells to trigger MDS.
New evidence supports idea that America’s first civilization was made up of ‘sophisticated’ engineers
4hNew evidence discovered at Poverty Point in northern Louisiana by anthropologists challenges previous beliefs about how pre-modern hunter-gatherers behaved.
New resource to advance genomics-driven precision medicine
4hResearchers have a new lens by which to understand how genes impact disease.
With ‘Heartbeat’ Law, Texas Instates Near-Total Ban on Abortion
5hNew abortion restrictions began in Texas on Wednesday, banning the procedure as early as week six of pregnancy. The law, which was originally signed by Gov. Greg Abbott in May, sharply curtails access to abortion in the country’s second-most populous state.
Global warming threatens the existence of an Arctic oasis
5hThe University of Helsinki's Environmental Change Research Unit (ECRU) took part in an international study investigating the millennia-long history of the most important oasis in the Arctic and the potential effects of climate change on its future.
Enhanced ambient ammonia photosynthesis using nanosheets with light-switchable oxygen vacancies
5hResearchers have presented a strategy for simultaneously introducing light-switchable oxygen vacancy and doping Mo into Bi5O7Br nanosheets for efficient photocatalytic N2 fixation. The modified photocatalyst has achieved elevated N2 fixation photoactivities by virtue of the optimized conduction band position, enhanced light availability, improved N2 adsorption and charge carrier separation.
The first cells might have used temperature to divide
5hA simple mechanism could underlie the growth and self-replication of protocells—putative ancestors of modern living cells—suggests a study publishing September 3 in Biophysical Journal. Protocells are vesicles bounded by a membrane bilayer and are potentially similar to the first unicellular common ancestor (FUCA). On the basis of relatively simple mathematical principles, the proposed model sugge
Neuroscience and the misperception of reality | Letter
5hAs living creatures, we are exquisitely evolved to interact with the world through perception, says David Hughes Gaia Vince, reviewing Anil Seth’s Being You: A New Science of Consciousness ( The exhilarating new science of consciousness, 25 August) , extols the thesis that because our perception of the world is a complex physical process, perception is itself a “hallucination” and “a big lie crea
A new way to restore Earth's biodiversity — from the air | Susan Graham
5hLand restoration is about more than planting trees, says environmentalist Susan Graham. Check out how her team combines drone technology with ecology-trained AI to restore degraded land and revive complex, biodiverse ecosystems — whether it's on a small island or across an entire continent.
Europe’s oldest map shows tiny Bronze Age kingdom
5hIn 1900, a local historian discovered a curiously engraved stone slab in a Bronze Age grave. It took researchers almost a century to realize that it might be a map — but by then, the stone had gone missing. Rediscovered in 2014 and analyzed until earlier this year, the slab is Europe's oldest map linked to a territory. Thousands of prehistoric monuments dot the landscape of Brittany, including th
Summer of Science Reading, Episode 4: Navigating Loss and Hope with Nature
5hIn Science Book Talk, a new four-part podcast miniseries, host Deboki Chakravarti acts as literary guide to two science books that share a beautiful and sometimes deeply… — Read more on ScientificAmerican.com
S.Africa's lions prosper with careful watch and fenceless parks
5hAt sunset, a buffalo calf's distressed grunts reverberate through the bush.
The Books Briefing: Language Can Build Community—Or Sow Division
5hIn the media reporter Brian Stelter’s book Hoax , he shares an anecdote that neatly sums up so much about Fox News and its influence on how its viewers communicate. A staffer who described a restaurant chain’s decision to offer a vegan burger as an improvement to the menu said they were castigated and corrected: The new option was actually proof of the “war on meat,” a network superior said. Thus
Study Shows Colombian Guerrillas Were Guardians of the Forest
5h'Deforestation has increased significantly in the last five years following the signing of the peace agreement.'
German climate groups plan legal action against car giants
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5hGerman Legal Daimler BMW
German environmental groups on Friday announced a legal offensive against car giants Volkswagen, Daimler and BMW to force them to reduce emissions faster, emboldened by recent court victories in favour of climate protection.
Light reveals the origin of a grain of sand
5hA grain of sand buried for an extended period of time in earthworks or on the bottom of the ocean, accumulate a luminescence signal. Scientists use this signal to determine how long a particular grain of sand has been buried. With a new, highly sensitive camera, they can photograph these signals with pinpoint accuracy. In fact, they are even trying to determine where the grain of sand comes from a
Indian wolf among world’s most endangered and distinct wolves
5hThe Indian wolf could be far more endangered than previously recognized, say first scientists to sequence its genome. Indian wolves could also represent the most ancient surviving lineage of wolves.
Natural exposure to wildfire smoke increased pregnancy loss in rhesus macaques
5hRhesus macaques naturally exposed to wildfire smoke early in pregnancy had an increased rate of miscarriage, according to new research.
Missing ancient Mesopotamian artifacts seized in Norway
5hNearly 100 missing tablets and other archaeological objects from ancient Mesopotamia have been found in Norway and seized, police said Friday.
The annual 3,000-mile monarch migration is heading toward Chicago: 'It's like a Disney movie, except better'
5hBreanna Seibel was riding a four-wheeler alongside her alfalfa field in northern Wisconsin when she started seeing monarch butterflies. The bright orange visitors were swooping, fluttering and dancing in pairs, quartets and trios. They were landing in the trees that line the field, with up to 100 clustered on a single branch.
UN: Brief gains in air quality in 2020 over COVID lockdowns
5hThe U.N. weather agency says the world—and especially urban areas—experienced a brief, sharp drop in emissions of air pollutants last year amid lockdown measures and related travel restrictions put in place over the coronavirus pandemic.
With no tourist handouts, hungry Bali monkeys raid homes
5hDeprived of their preferred food source—the bananas, peanuts and other goodies brought in by tourists now kept away by the coronavirus—hungry monkeys on the resort island of Bali have taken to raiding villagers' homes in their search for something tasty.
Fire, drought, and lax enforcement threaten Amazon biodiversity
5hA new study catalogs how environmental policies on deforestation, along with forest fires and drought, have affected plant and animal diversity in the Amazon rainforest. For the study in Nature , researchers used records of more than 14,500 plant and vertebrate species to create biodiversity maps of the Amazon region. Overlaying the maps with historical and current observations of forest fires an
Author Correction: Observation and analysis of diving beetle movements while swimming
5hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97815-1
Publisher Correction: Artisanal shark fishing in Milne Bay Province, Papua New Guinea: biomass estimation from genetically identified shark and ray fins
5hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97067-z
Tapping into magnets to clamp down on noise in quantum information
5hThe U.S. Department of Energy (DOE) has recently funded both DOE's Argonne National Laboratory and the University of Illinois Champaign-Urbana (UIUC) in a new project related to quantum information science. The Argonne team will bring to the project its expertise in coupling superconducting and magnetic systems. The UIUC team will contribute its world-class capabilities for developing new magnetic
Developing multifunctional composite materials for aerospace applications
5hMaterials for aerospace applications face many challenges. The structure of an aircraft must be light yet strong. Structural components such as the wings or fuselage must resist damage while at the same time in some areas be able to handle high temperatures from engine exhaust. An aircraft's electronic components must also be shielded from electrical surges due to lightning strikes or other interf
Experts split over effectiveness of climate emergency declarations
5hPoliticians and activists should be cautious in their use of climate and biodiversity emergency declarations as their impact can be harmful as well as helpful in tackling the world's biggest problems, new research co-authored by the University of Sussex Business School warns.
Tougher and lighter dental implant crowns can be made of cellulose-based nanocomposites
5hNature provides unique insights into design strategies evolved by living organisms to construct robust materials. In this case, the research group was able to create a new impact-resistant material inspired by the dactyl club of the mantis shrimp. The new material could be used in applications that require withstanding repetitive high strain-rate impacts while maintaining structural integrity. The
Video analysis reveals aspects of posture that lead to success in judo throws
5hScientists from the Faculty of Engineering, Information, and Systems at the University of Tsukuba analyzed video from top-level judo matches to systematically determine the aspects of posture, just before executing a throw, that lead to success. This work may help in quantitative measurements of other biomechanical processes, as well as improving coaching methods.
Holding stellar nurseries in your hands
5hAstronomers can't touch the stars they study, but astrophysicist Nia Imara is using 3-dimensional models that fit in the palm of her hand to unravel the structural complexities of stellar nurseries, the vast clouds of gas and dust where star formation occurs.
Five reasons video games should be more widely used in school
5hIn an effort to curtail how much time young people spend playing video games, China has banned students from playing them during the school week and limits them to just one hour per day on Fridays, weekends and holidays.
Marine bacterial exopolysaccharide EPS11 inhibits migration and invasion of liver cancer cells
5hMany natural polysaccharides have significant anti-cancer activity with low cytotoxicity and side effects. They are considered as good substitutes for synthetic antitumor agents.
Astronomers create 3D-printed stellar nurseries
6hAstronomers can't touch the stars they study, but an astrophysicist is using 3-dimensional models that fit in the palm of her hand to unravel the structural complexities of stellar nurseries, the vast clouds of gas and dust where star formation occurs. Astronomers created the models using data from simulations of star-forming clouds and a sophisticated 3D printing process in which the fine-scale d
Nano ‘camera’ made using molecular glue allows real-time monitoring of chemical reactions
6hResearchers have made a tiny camera, held together with 'molecular glue' that allows them to observe chemical reactions in real time.
Bioolja kan produceras av kraftvärmeverk i Sverige
6hBioolja behövs i såväl biodrivmedel som i kemikalieindustrin. Kraftvärmeverk i Sverige skulle kunna börja producera bioolja, vid sidan om sin produktion av el och fjärrvärme, visar forskning. I ett kraftvärmeverk eldar man med bland annat träflis för att hetta upp vatten. Vattenångan driver en turbin som i sin tur genererar el och fjärrvärme till bostäder. Men behovet av fjärrvärme har minskat, b
Florigen sequestering in cell membranes modulates temperature-responsive flowering
6hA team of researchers from Korea University, Sogang University and the National University of Singapore has found that the protein florigen binds to a membrane phosopholipid when temperatures are low and unbinds when temperatures rise, allowing flowering in a plant. In their paper published in the journal Science, the group describes their study of the flowering process in plants. Yvon Jaillais an
Social tiger sharks may hold the secret to impacts of dive tourism
6hA team of conservation scientists looking at the impact of tourism on tiger sharks have, for the first time observed them in social groups near an area called Tiger Beach off the north-west side of Little Bahama bank in the Bahamas, a popular spot for tourists.
Fish eyes grown in a petri dish from embryonic stem cells
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6h1 Stem Cells 2021 Therapy
A research team from the Centre for Organismal Studies (COS) of Heidelberg University has demonstrated that complex retinal tissue can be cultured in a Petri dish from embryonic stem cells of bony fish. Until now, stem cells from mammals, including humans, have been used in organoid research. For the first time, researchers led by Prof. Dr. Joachim Wittbrodt have demonstrated that stem cells from
Identification of plant-parasitic nematode attractant
6hA research collaboration based in Kumamoto University, Japan has become the first to successfully purify and identify an attractant for crop-infecting root-knot nematodes from flax seeds. Their experiments revealed that rhamnogalacturonan-I (RG-I), a flaxseed cell wall component, can attract root-knot nematodes. The linkages between rhamnose and L-galactose are essential for the attraction.
How drug-resistant pathogen strains meet and evolve on plant bulbs
6hJust when we thought it was safe to go to the local garden center, researchers from Japan have discovered that fungicide-resistant strains of a nasty pathogen have been getting up to no good among the tulip bulbs.
Meteosat Third Generation takes major step towards its first launch
6hAfter many technical and programmatic challenges, the first satellite of the next generation of the Meteosat family has taken a major step towards its first flight, currently scheduled for launch in autumn 2022.
New data shows strong air pollution policies lengthen life expectancy
6hOver the last year, COVID-19 lockdowns brought blue skies to the most polluted regions of the globe, while wildfires exacerbated by a drier and hotter climate sent smoke to the normally clean skies of cities thousands of miles away. The conflicting events offer two visions of the future. The difference between those futures lies in policies to reduce fossil fuels.
Freshwater lakes on the Tibetan Plateau act like lenses that accumulate heat from solar radiation
6hThe largest alpine lake system in the world sits atop the Qinghai-Tibet Plateau, commonly known as the Tibetan Plateau, which is the highest and largest plateau in the world. Researchers know the lakes influence the transfer of heat between the land and atmosphere, affecting regional temperatures and precipitation. But little is known about the physical properties and thermal dynamics of Tibetan l
Psychologist shares tips for studying smarter this school year
6hStudents of all ages are heading back to schools across the country this fall amid continued uncertainty over the coronavirus pandemic and concerns about learning loss and student burnout. But insights from psychology research could help to maximize learning, even in limited study time.
Large-scale phase retrieval
6hWide field of view and high resolution are both desirable for imaging applications, providing multi-dimensional and multi-scale target information. As the recent development of phase imaging, large-scale detection has been widely employed in a variety of imaging modalities, which largely extends the spatial-bandwidth product (SBP) of optical systems from million scale to billion scale. Such a larg
Crashing T-Pain's Personal Drift Car | Getaway Driver
6hStream Getaway Driver on discovery+ ► https://www.discoveryplus.com/show/getaway-driver-us About Getaway Driver: Michelle Rodriguez brings the ultimate driving fantasy to life as 24 elite drivers get behind the wheel in a real-life high-speed chase. Can the getaway drivers evade their pursuers, find an exit and escape, or will their cars pay the ultimate sacrifice? #GetawayDriver #MichelleRodrigu
Hot spot in baby star hints at sun’s infant years
6hA uniquely shaped spot on a baby star reveals new information about how young stars grow, researchers report. It also offers clues about the forces at play when our sun was in its infancy. The familiar star at the center of our solar system has had billions of years to mature and ultimately provide life-giving energy to us here on Earth. But a very long time ago, our sun was just a growing baby s
China to build satellite constellation for natural disaster observation
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Small is beautiful in South Korea's pivot back to nuclear power
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A New ‘Extreme Ultraviolet’ Microchip Machine Could Revive Moore’s Law – It turns out, microchips will keep getting smaller.
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Hot Rock Energy Storage Will Soon Be A Reality In Denmark's Electricity Grid
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Australian researchers set new efficiency record in quest for low-cost solar hydrogen
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Sludge: Americans spend 11.4 billion hours filling out federal paperwork
6hThe sludge of paperwork can make it difficult or impossible for people to avoid crushing hardship. Whenever the government imposes paperwork burdens, it ought to ask a cost-benefit question. Sludge reduction should be a high priority. Excerpted from Sludge: What Stops Us From Getting Things Done and What to Do About It by Cass R. Sunstein. Reprinted with Permission from The MIT PRESS. Copyright 2
Talking to My Daughter Can Be Harder Than Learning Quantum Mechanics
7hOrdinary human dilemmas are tougher to solve than the most difficult problems of physics and mathematics — Read more on ScientificAmerican.com
Insight into the plant immune system
7hFound in almost every plant species, disease-resistance proteins (R proteins) are an important part of the plant immune system. Many R proteins trigger an extreme hypersensitive defense response when they recognize specific pathogens, which results in rapid host cell death in the area surrounding the pathogen infection. This recognition event can also trigger changes in gene expression and other p
Nitrogen-efficient wheats provide more food with fewer greenhouse gas emissions
7hAn international collaboration has discovered and transferred to elite wheat varieties a wild-grass chromosome segment that causes roots to secrete natural inhibitors of nitrification, offering a way to dial back on heavy fertilizer use for wheat and to reduce the crop's nitrogen leakage into waterways and air, while maintaining or raising its productivity and grain quality, says a new report in t
New digital tools to track illegal wildlife trade online
7hAs governments around the world turned to lockdowns and travel restrictions to prevent the spread of the COVID-19 virus, smugglers used social media to find new ways to connect with potential customers.
Sugar feeding may inhibit mosquitos' ability to get infected, transmit arboviruses
7hSugar feeding prior to having an infected blood meal could protect a mosquito's ability to get infected and transmit arboviruses such as Zika, dengue and chikungunya, according to a new study.
DNA analysis of grizzly bears aligns with Indigenous languages
7hAlong the central coast of what is now known as British Columbia, Gitga'at, Haíɫzaqv (Heiltsuk), Wuikinuxv, Nuxalk, and Kitasoo/Xai'xais First Nations are monitoring and managing wildlife populations, continuing a legacy of stewardship of this landscape since time immemorial. Stewardship often represents an extension of long-term relationships with ecosystems and animals, including iconic species
#MeToo: Study finds sexual harassment in academic libraries more frequent than thought
7hSexual harassment is far more frequent in academic libraries than previously assumed, according to a first-of-its-kind survey published in College & Research Libraries.
Color-changing coatings triggered by temperature changes
7hThe changing of color can influence our perception of objects, be used to warn us against dangers or hazards, or help to conserve energy. Ph.D. candidate Weixin Zhang has developed organic "photonic" coatings that change colors with changing temperatures. Robust smart coatings were fabricated that can be easily processed and show a rapid color-changing response to temperature changes. These coatin
Unraveling quantum interactions of 100,000 atoms in gases
7hSilvia Musolino defended her Ph.D. on new theoretical insights in quantum physics by studying gases at the lowest temperatures consisting of many atoms.
100 years of Australian fatherhood: How today's dads differ from their grandfathers
7hToday's Australian fathers are believed to be more "hands on" and engaged with their children than the stereotypical absent breadwinner of generations past.
Hurricane Ida: Two reasons for its record-shattering rainfall in NYC and the Northeast long after the winds weakened
7hRecord downpours from Hurricane Ida overwhelmed cities across the Northeast on Sept. 1, 2021, hitting some with more than 3 inches of rain an hour. Water poured into subway stations in New York and Boston. Streets flooded up to the rooftops of cars in Philadelphia. The storm had already wreaked havoc on the Gulf Coast after hitting Louisiana three days earlier as a Category 4 hurricane.
Cataract surgery emits as much carbon as a one-hour flight
7hWhen it comes to reducing the country's carbon emissions, most of us will be looking to the energy and transport sectors, or to agriculture.
How to fold a linear chromosome of Streptomyces
7hStreptomycetes are the richest source of antibiotics, anticancer agents and immunosuppressants used in human and veterinary medicine.
Linking humans with blue carbon ecosystems
7hSocial vulnerabilities of coastal communities and their reliance on blue carbon ecosystem services may be improved by addressing three major factors, according to a study led by Hokkaido University researchers.
Climate change adaptation brings health co-benefits
7hThe COVID-19 pandemic has increased attention on links between public health and the planet's health—areas traditionally addressed in separate science and policy circles. Now, an international research collaboration conducted the first comprehensive review of urban climate change responses and potential human health improvements.
Metan-udslip: Her er de største syndere
7hPLUS. Energistyrelsens nye rapport om metantab afslører store forskelle i biogasanlæggenes udslip
Trust in Science May Lead to Pseudoscience
7hThe ultimate goal of scientific skepticism is to skillfully use a process that has the maximal probability of accepting claims that are actually true and rejecting those that are false, while suspending judgment when an answer is not available. This is an open-ended process and is never complete, although some conclusions are so solid that questioning them further requires an extremely high bar o
Author Correction: A syndromic surveillance tool to detect anomalous clusters of COVID-19 symptoms in the United States
7hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97597-6
Publisher Correction: Radiation-induced acute injury of intensity-modulated radiotherapy versus three-dimensional conformal radiotherapy in induction chemotherapy followed by concurrent chemoradiotherapy for locoregionally advanced nasopharyngeal carcinoma: a prospective cohort study
7hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97814-2
Author Correction: Optimum protein requirement of juvenile orange-spotted grouper (Epinephelus coioides)
7hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97906-z Author Correction: Optimum protein requirement of juvenile orange-spotted grouper ( Epinephelus coioides )
Dead stars crashing into live stars may trigger a new type of supernova
7hAstronomers have uncovered evidence of explosions triggered by dead stars ramming into live stars, possible proof of a new type of supernova, a new study finds.
Cavalier King Charles spaniels carry more harmful genetic variants than other breeds, study finds
8hRecent dog breeding practices have loaded up cavalier King Charles spaniels with disease-causing mutations, including variants linked to the common heart condition, myxomatous mitral valve disease (MMVD), according to new findings.
Teenagers aren't as lonely in lockdown if interacting positively online, research finds
8hParents and educators have long fretted over the amount of time children and teenagers spend online. But when it comes to screen time, the problem is not so much the number of hours spent online, but the quality of online interactions, particularly under stringent COVID-19 distancing or lockdown conditions, a new study shows.
'Leaky' heart valves in pregnant women need more attention than once thought, study suggests
8hAn analysis of more than 20,000 individual medical records suggests that a form of heart valve disease thought to be relatively benign during pregnancy may put women at risk for serious bleeding, high blood pressure, organ damage and other complications during childbirth.
Researchers discover connection between brain’s opioid system and eating behavior
8hBrain regulation of feeding behavior traits has remained incompletely understood. In a new study, researchers discovered a connection between the function of the opioid system and food craving triggered by appetitive external stimuli.
These Baby Bats, like Us, Were Born to Babble
8hThe greater sac-winged bat develops its own language in much the way we do.
'Red light' warning flashed during Richard Branson's historic spaceflight, Virgin Galactic insiders say
8hIt may not have gone as smoothly as we thought.
Signaling Dynamics Fine-Tune Gene Expression
8hThe dynamic behavior of a transcriptional activator can be used to specify the activity level of its target gene, a study suggests.
Build Your Own Self-Driving Car With This DIY Kit
8hSelf-driving cars are the future in more ways than we realize. While robot taxis are cool , self-driving and self-operating tech will have enormous impacts on industries ranging from construction to medical to care to public transit. If you want to learn how AVs work, or have a budding engineer who wants to know, Wheelson will show you how it works, from the road up. The Wheelson: Build & Code Yo
Våben, stoffer og hælervarer: Kom med på rundtur i nettets mørkeste afkroge
8hI jagten på hackere har it-sikkerhedsfolk bygget værktøjer, der indekserer dele af ‘det mørke net’. Med dem har vi besøgt de mørkeste afkroge af internettet – så du ikke behøver.
Publisher Correction: GIANA allows computationally-efficient TCR clustering and multi-disease repertoire classification by isometric transformation
8hNature Communications, Published online: 03 September 2021; doi:10.1038/s41467-021-25693-2
Busting benzene, lab-grown embryos — the week in infographics
8hNature, Published online: 03 September 2021; doi:10.1038/d41586-021-02400-1 Nature highlights three key infographics from the week in science and research.
Affluence buys a diet good for human health and bad for the planet
8hNature, Published online: 03 September 2021; doi:10.1038/d41586-021-02404-x Prosperous people in the United States tend to consume food that requires large amounts of land and water to produce.
No hands, no problem: clever parrots craft and wield tools
8hNature, Published online: 03 September 2021; doi:10.1038/d41586-021-02381-1 The Goffin’s cockatoo joins chimpanzees and others in the small club of animals that can make implements.
A stellar explosion moves from theory to reality
8hNature, Published online: 02 September 2021; doi:10.1038/d41586-021-02395-9 Radio signals help to provide evidence for a type of supernova triggered by a black hole or neutron star on the rampage.
Got a cool pet? Enter to win this book on their prehistoric counterparts.
8hHere's how to enter to win a free copy of the "Prehistoric Pets" pop-up book.
Health officials quietly moved the date of the 1st US COVID-19 death to January 2020
8hThe first death occurred a month earlier than previously thought.
Helt rum med trådlös el testas
8hDags att ta farväl av sladdar? Med hjälp av tredimensionella magnetfält kan japanska och amerikanska forskare överföra el med en effekt på upp till 50 watt trådlöst i ett nio kvadratmeter stort rum.
Deadly Alkaline Water Case Highlights Problems with Bottled Water Regulations
9hBottled water can be convenient, and sometimes necessary, but it is unfortunately not always as safe as it should be. A recent case of toxic alkaline water hospitalizing several people, and killing one woman, shines a spotlight on problems with regulation of the industry. The post first appeared on Science-Based Medicine .
PODCAST: Umuligt at kende forskel – AI bringer stemmer til live
9hSelvom skuespilleren Val Kilmer mistede evnen til at tale, da han i 2014 blev behandlet for cancer i halsen, medvirker han fortsat i film, hvor han taler med en stemme genereret af en kunstig intelligens. Hvordan begrænser vi CO2-udslippet, når der på kloden bygges 50.000 boliger om dagen?
Many Mouse Studies Happen at the Wrong Time of Day
9hMice woken at odd hours may skew research results—and most studies don’t track the timing — Read more on ScientificAmerican.com
Podcast: Sådan omvæltede terroren vores lovgivning
9hFør den 11. september 2001 bestod den danske antiterrorlovgivning af et såkaldt korpsforbud…
Den ulovlige lov: Masseovervågningen af danskerne
9hSiden 2006 har vi i Danmark som del af vores kamp mod terrorisme gemt mange tusind milliarder stykker…
Danmarks antiterrorlov er ikke spor dansk – og det er lidt et problem
9hDanmarks omfattende antiterrorlovgivning er i høj grad copy-pasted fra international lov. Det betyder…
Timmarna du sover betyder mer än du tror
9hI en ny studie har forskare sett ett tydligt samband mellan hur länge man sover och ett antal biomarkörer kopplade till kardiometabola sjukdomar, som hjärt- och kärlsjukdomar och typ 2-diabetes. Med en ökad kunskap om själva mekanismerna för utveckling av sjukdom ökar möjligheterna för en mer specifik och riktad behandling.
How to straighten a zebra
9hNature, Published online: 03 September 2021; doi:10.1038/d41586-021-02350-8 Cracking the code.
Daily briefing: Masks work against COVID, finds a huge randomized trial
9hNature, Published online: 02 September 2021; doi:10.1038/d41586-021-02415-8 Evidence that masks work to slow the spread of COVID-19. Plus, an ancient human crossroads in Arabia and squished-up buckyballs are hard as diamonds.
Epigallocatechin gallate inhibits release of extracellular vesicles from platelets without inhibiting phosphatidylserine exposure
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97212-8
Ascorbic acid as an adjunctive therapy in critically ill patients with COVID-19: a propensity score matched study
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-96703-y
Camera realignment imposes a cost on laparoscopic performance
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-96965-6
Fractionated deep-inspiration breath-hold ZTE Compared with Free-breathing four-dimensional ZTE for detecting pulmonary nodules in oncological patients underwent PET/MRI
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-94702-7
Simple linear ionic polysiloxane showing unexpected nanostructure and mechanical properties
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97204-8
Nanopore sequencing approach for immunoglobulin gene analysis in chronic lymphocytic leukemia
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97198-3
Effect of hybridized local and charge transfer molecules rotation in excited state on exciton utilization
9hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97229-z
In which we ask: What exactly did peer review accomplish here?
10hA retraction notice for a 2021 paper in an environmental sciences journal has us wondering if the peer review process for the publication should be declared a Superfund Site. The article, “Experimental study and numerical prediction of HTO and 36Cl− diffusion in radioactive waste at Téguline Clay,” appeared in Environmental Technology, a Taylor & Francis … Continue reading
Book Review: The Rise of Harm Reduction in the War on Drugs
10hMaia Szalavitz’s “Undoing Drugs” explores the evolution of the movement to prioritize people in the war on drugs — a philosophy known as harm reduction. In this in-depth history, Szalavitz covers many angles of drug policy, including prescription drug use, supervised consumption, and racial inequities.
Long-term treatment with senolytic drugs Dasatinib and Quercetin ameliorates age-dependent intervertebral disc degeneration in mice
10hNature Communications, Published online: 03 September 2021; doi:10.1038/s41467-021-25453-2 Intervertebral disc degeneration is a leading cause of chronic back pain and disability. Here the authors show that long term treatment with senolytic compounds Dasatinib and Quercetin reduces disc senescence burden and ameliorates age-dependent degeneration in mice.
Robo-penguin: How artificial birds are relaying the secrets of ocean currents.
10hsubmitted by /u/Sumit316 [link] [comments]
Radar ‘closer to spotting stealth jets’ with Chinese quantum project
10hsubmitted by /u/williams_harris [link] [comments]
How can a technocracy create a Post-Scarcity economy? And how would things like currency, and private property work and how would they determine their value and the value of goods and services?
10hSo just for fun let's say in the future we have a United World Government run by a technocracy and they decide to create a post-scarcity economy. How would they do it? And how would things like currency, and private property work and how would they determine their value and the value of goods and services? submitted by /u/jacky986 [link] [comments]
Ingen strategi bag dansk krigsindsats i Afghanistan – vi fulgte USA
10hDa Danmark blot tre måneder efter terrorangrebet 11. september 2001 besluttede at deltage i krigen…
Ny administrerende direktør til Privathospitalet Mølholm
10hBestyrelsen på Privathospitalet Mølholm meddeler, at det bliver Lars Dahl Pedersen, der fremadrettet skal varetage stillingen som administrerende direktør på hospitalet.
Author Correction: Elevated dimethylarginine, ATP, cytokines, metabolic remodeling involving tryptophan metabolism and potential microglial inflammation characterize primary open angle glaucoma
11hScientific Reports, Published online: 03 September 2021; doi:10.1038/s41598-021-97509-8
Crispr sat på spidsen: Skal vi bruge gensaksen på fødevarerne?
11hPLUS. Nye lempeligere regler for genteknologien Crispr er på vej i EU, men er det en god idé? Og hvordan? Vi har stillet nogle af de spørgsmål, der deler vandene, til seniorrådgiver i Danmarks Naturfredningsforening Rikke Lundsgaard og formand for Det Etiske Råd Anne-Marie Gerdes.
Bispebjerg og Frederiksberg Hospital fastansætter konstitueret hospitalsdirektør
11hDet bliver den lægeuddannede Kristian Antonsen, der fremover skal stå i spidsen for Bispebjerg og Frederiksberg Hospitals direktion. Han fastansættes som hospitalsdirektør efter syv måneder som konstitueret i stillingen.
Værd at Vide: Kan ny søgemaskine gøre dilettanter til eksperter?
11hPLUS. Med matematik og lineær algebra vil Google blande tekst, video og audio på en ny måde.
Is there a list of all psychological research published in nature and science?
11hOur research group wants to get a feel for the kind of studies that do and don't get accepted in the top journals and we are thinking of writing a discussion article on some characteristics of these studies. The problem is that it's hard to get a real overview of all the studies from our field that have been published there in recent times (say for example the past 30 years). We are specifically
Efter kritik: Regeringen og støttepartier melder sig klar til at finde flere penge til psykiatrien
11hEfter at være blevet kritiseret for at have overset psykiatrien i finanslovsforslaget melder regeringen sig parat til at finde de nødvendige midler til området. Til forhandlingerne vil både SF og Enhedslisten presse regeringen til at finde akutte midler til socialpsykiatrien.
Finanslovsforslag møder kritik: Flere aktører har mistet tillid til regeringens valgløfte på psykiatriområdet
11hDansk Psykiatrisk Selskab og Lægeforeningen er blandt kritikerne af, at der ikke er øremærket flere penge til socialpsykiatrien eller den kommende genopretningsplan for psykiatrien i regeringens forslag til næste års finanslov. Regeringen melder sig dog nu klar til at finde de nødvendige midler.
Markets steady ahead of US jobs report
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11hUS Fed Ahead Report
Monthly non-farm payrolls report could offer clues on Fed’s next steps
Ny stor studie: Munskydd minskar smittan tydligt
12hFrågan om munskydd har varit het i Sverige ända sedan pandemin bröt ut. Många forskare och även Folkhälsomyndigheten har hävdat att de kan ge en falsk trygghet. Men nu kommer en unikt stor studie och jämförande studie som visar att munskydden kan minskar smittspridningen med omkring 10 procent.
Opsigtsvækkende mekanisme bag Alzheimers sygdom fundet
12hPLUS. Amerikanske forskere har fundet en konkret funktion i hjernen, som proteinet beta-amyloid ser ud til at forstyrre. Dansk overlæge finder fundet interessant for den videre opklaring af mekanismerne bag Alzheimers Sygdom.
Swiss glaciologist bears witness to relentless Alpine glacier melt
12hAfter hiking for hours across the mountain and a vast expanse of white, Swiss glaciologist Matthias Huss crouches down near the middle of the massive glacier and checks the measurements.
Climate crisis triggers spike in lightning strike deaths in India
12hFaizuddin is still traumatised from the lightning strike that killed his three friends as they took selfies atop a 400-year-old fort in India, where climate change is making lethal strikes more common.
Colombian photographer documents world's largest variety of butterflies
12hLike the more than 3,000 species of butterflies in Colombia, agronomist Juan Guillermo Jaramillo underwent his own metamorphosis several years ago, as his passion for photographing nature took an unexpected twist.
NASA thinks Mars rover succeeded in taking rock sample
12hNASA's Perseverance rover succeeded in its second attempt to scoop up a piece of Martian rock for future analysis by scientists on Earth—probably.
Climate change blamed for New Zealand's warmest winter
12hNew Zealand saw its warmest winter on record this year as climate change fuelled rising temperatures, a government scientific agency said Friday.
Floating Dutch cow farm aims to curb climate impact
12hAmong the cranes and containers of the port of Rotterdam is a surreal sight: a herd of cows peacefully feeding on board what calls itself the world's first floating farm.
Flights resume, some power restored in New Orleans after Ida
12hCommercial flights resumed in New Orleans and power returned to parts of the business district Thursday, four days after Hurricane Ida slammed into the Gulf Coast, but electricity, drinking water and fuel remained scarce across much of a sweltering Louisiana.
Lake Tahoe resort city OK for now, wildfire fight not over
12hBetter weather on Thursday helped the battle against a huge California wildfire threatening communities around Lake Tahoe, but fire commanders warned firefighters to be prepared for ongoing dangers.
Stigende forekomst af skizofreni på grund af cannabismisbrug
12hHypotesen om, at cannabismisbrug kan føre til skizofreni, bestyrkes af stort dansk registerstudie, som har set på cannabismisbrug og udvikling af skizofreni i et 40-årigt perspektiv.
Schneider Shorts 3.09.2021 – More Sex with Israeli Scientists
14hSchneider Shorts of 3.09.2021: A French covidiot resigns all the way to 19th century, American ivermectin death cults, what cancer's Achilles Heel really is, comedy wildlife photography, the proper way to watchdog over research integrity: lessons from China and Netherlands, why preprints are evil, and featuring Israeli scientists: the kinky version.
Chinese team says quantum physics project moves radar closer to detecting stealth aircraft
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Better Than Batteries? A Startup That's Storing Energy in Concrete Blocks Just Raised $100 Million
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Live map of countries with electricity power reporting, and their related carbon emissions (gCO2/kWh)
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IBM Quantum Computing: From Healthcare to Automotive to Energy, real use cases are in Play
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ABBA have announced a world tour that will be entirely performed by digital avatars of the group as they were in 1979
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Global inequality may be falling, but the gap between haves and have-nots is growing
15hsubmitted by /u/altmorty [link] [comments]
NASA welcomes new Russian commitment to space station
15hsubmitted by /u/depressedloserxd [link] [comments]
Hos Lægerne Sløjfen arbejdes der i behandlerteams
15hPå klinikken i Aalborg vækker det opsigt, da konsultationerne primært varetages af en sygeplejerske med lægen som supervisor og samarbejdspartner.
De fandt nøglerne til leukæmiens maskinrum
15hBørneonkologerne på Rigshospitalet har et hav af forskningsprojekter i gang og en perlerække af resultater bag sig. Et af de virkeligt banebrydende er udviklingen af nye måleteknikker af en hidtil uset præcision. Det har affødt en kaskade af nye projekter, som igen har ført til behandlingsændringer, så endnu flere børn og unge kan overleve leukæmi.
Lægen bag Børnecancerfonden: »Indtil 1960’erne døde alle børnene jo«
15h»Ordentlig forskning er forudsætningen for ordentlig behandling, og ordentlig behandling er forudsætningen for, at børnene bliver raske.« Sådan siger initiativtageren til Børnecancerfonden, 87-årige Henrik Hertz, som har gjort mere end de fleste for at gøre ordene til virkelighed.
Dansk forskning: Færre doser gav færre bivirkninger, men samme overlevelse
16hStoffet asparaginase står som en hjørnesten i behandlingen af akut lymfatisk leukæmi (ALL), men det belaster kroppen. Forskere fra Aarhus har stået i spidsen for et nordisk studie, som viser, at patienterne kan nøjes med færre doser end tidligere.
Derfor er de i verdensklasse
16hInternationale projekter, solide resultater og ‘precision medicine’ er den cocktail, der gør, at danske forskeres indsats for at forbedre overlevelseschancerne for cancerramte børn og unge er førende på internationalt plan.
Ny læge på Anholt: »At jeg ikke kun er praktiserende læge, men også akutlæge fylder stadig meget i min bevidsthed«
16hFor et halvt år siden arbejdede 38-årige Anne-Sofie Weindel som praktiserende læge i en kompagniskabspraksis i Urbanplanen på Amager. 1. august overtog hun jobbet som Anholts eneste praktiserende læge, vagtlæge og akutlæge.
Dagens Medicin stifter ledelsespris: Der er behov for at hylde god ledelse i sundhedsvæsenet
16hSammen med en jury af erfarne sundhedsledere vil Dagens Medicin sætte fokus på god ledelse i sundhedsvæsenet. Det markeres med uddeling af Dagens Medicins ledelsespris på konferencen '2 dage for sundheden'.
Praktiserende læger har meget individuelle måder at håndtere patienter med symptomer på nedre luftvejsinfektioner
16hNyt dansk studie belyser, hvilke tanker og overvejelser de praktiserende læger gør sig, når de håndterer patienter med en mulig nedre luftvejsinfektion. Der er ret store forskelle mellem lægerne i deres tilgang til patienterne, siger forsker.
Sep 2, 2021 – Does Our Mind’s Eye Match Real Life? Study Shows Differences in How We Perceive Images… https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0256658
16hsubmitted by /u/DomPachino [link] [comments]
COVID-19: Sundhedsvæsenet skal huske at handle
17hNy bog fra Dansk Selskab for Patientsikkerhed samler erfaringer og læringer fra halvandet års COVID-19-krise fra mere end 100 aktører i sundhedsvæsenet.
Flere topledere i sundhedsvæsenet burde spørge: ‘Hvordan kan jeg hjælpe?’
17hSundhedsvæsenet er på vej ud af det massive pres, som COVID har lagt. Forude venter en sundhedsreform, som skal give konkrete løsninger på, hvordan vi håndterer patienter, som falder mellem sygehus, almen praksis og kommunale sundhedstilbud. Det står ikke helt klart, hvordan dét skal ske, men det vil sætte endnu mere fokus på, hvordan sundhedsvæsenet ledes.
UK gears up for battle to renew emergency Covid legislation
17hTory rebels say ‘draconian’ Coronavirus Act is no longer needed to contain the pandemic
Gamle ingeniørfif og nye materialer halverer klimabelastning fra broer
18hPLUS. Med mindre CO2-belastende cement og gamle designfif som indstøbning af rør, kan Vejdirektoratet bygge broer med op mod 50 procent lavere CO2-udledning uden at øge omkostningerne.
Researchers use artificial intelligence to predict which COVID-19 patients will need a ventilator to breathe
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19hAI Covid Patients CT
Researchers have developed an online tool to help medical staff quickly determine which COVID-19 patients will need help breathing with a ventilator. The tool, developed through analysis of CT scans from nearly 900 COVID-19 patients diagnosed in 2020, was able to predict ventilator need with 84 percent accuracy.
Novel mechanism links genetic defect in IBD patients to gut leakiness
19hA team of researchers has identified a novel mechanism by which loss-of-function mutations in the gene PTPN2, found in many patients with inflammatory bowel disease, or IBD, affect how intestinal epithelial cells maintain a barrier.
India’s DNA COVID vaccine is a world first – more are coming
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19hIndia Covid Vaccine
Nature, Published online: 02 September 2021; doi:10.1038/d41586-021-02385-x The ZyCoV-D vaccine heralds a wave of DNA vaccines for various diseases that are undergoing clinical trials around the world.
Prior exposure to common cold coronaviruses enhances immune response to SARS-CoV-2
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20hS Immune Sars Cov 2
Researchers have shown that certain immune cells, which are found in people previously exposed to common cold coronaviruses, enhance the body's immune response to SARS-CoV-2, both during natural infection and following vaccination. The researchers also report that this 'cross-reactive immunity' decreases with age. This phenomenon may help to explain why older people are more susceptible to severe
Brain-inspired memory device
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20hNUS New Brain Device
Many electronic devices today are dependent on semiconductor logic circuits based on switches hard-wired to perform predefined logic functions. Physicists have developed a novel molecular memristor, or an electronic memory device, that has exceptional memory reconfigurability.
Does our mind’s eye match real life? New study shows differences in how we perceive images
20hA new study investigated how we visualize things that we have already seen, discovering that many adults are resistant to imagining their own vision as if it were a flat image — seeing it in its fully processed, knowledge-laden form instead.
Less salt, more protein: Researchers address dairy processing's environmental, sustainability issues
20hResearchers say the high salt content of whey — the watery part of milk left behind after cheesemaking — helps make it one of the most polluting byproducts in the food processing industry. In a new study, chemists demonstrate the first electrochemical redox desalination process used in the food industry, removing and recycling up to 99% of excess salt from whey while simultaneously refining more
Perseverance Rover Successfully Collects Mars Rock Core on Second Attempt
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21hNASA Perseverance Mars
(Photo: NASA) NASA’s Perseverance rover has been playing second banana to the incredible Ingenuity helicopter since the pair landed earlier this year, and the rover’s first major operation didn’t go as planned. Several weeks ago, Perseverance failed to collect its sample after drilling into a rock, a mystery that took NASA a few days to solve. Now, the rover has executed a second sample collectio
Anatomy of the impact of a protostellar jet in the Orion Nebula
22hResearchers have uncovered the physical and chemical effects of the impact of a protostellar jet in the interior of the Orion Nebula. The observations show evidence of compression and heating produced by the shock front, and the destruction of dust grains, which cause a dramatic increase in the gas phase abundance of the atoms of iron, nickel, and other heavy elements in the Orion Nebula.
A simple T-cell test to show the full picture of body's immune response to COVID-19
22hA new method enables scientists to simply and rapidly assess T-cell immune responses in people vaccinated against or recovering from COVID-19, and verify vaccine effectiveness.
Painful fractures: Large eggs push small hens to the breaking point, study finds
22hThe majority of laying hens in Denmark suffer from keel bone fractures, a new study reveals. The fractures appear to be the result of disproportionately large eggs, which push the hen's body to the breaking point.
Researcher seeks to mitigate natural hazards with vulnerability in mind
23hFrom tropical storms to landslides, the form and frequency of natural hazards vary widely. But the feelings of vulnerability they can provoke are universal.
High incarceration rates fuel COVID-19 spread and undermine US public safety, study finds
23hU.S. jails function as 'infectious disease incubators' for surrounding communities, as high rates of viral transmission cause COVID-19 cases to multiply and 'boomerang' back to communities. A new national study shows that reducing jail populations, mask mandates, school closures and nursing home restrictions are the most important government policies for reducing COVID-19 spread.
Scientists create a labor-saving automated method for studying electronic health records
23hA new, automated, artificial intelligence-based algorithm can learn to read patient data from electronic health records. In a side-by-side comparison, scientists showed that their method accurately identified patients with certain diseases as well as the traditional, 'gold-standard' method, which requires much more manual labor to develop and perform.
Researchers identify new source for earthquakes and tsunamis in the Greater Tokyo Region
23hResearchers have discovered geologic evidence that unusually large earthquakes and tsunamis from the Tokyo region — located near tectonic plate boundaries that are recognized as a seismic hazard source — may be traceable to a previously unconsidered plate boundary.
Less air pollution and more access to green or blue spaces: A recipe to improve the life quality of people with COPD
23hA new study evaluates the association between a series of environmental factors and disease effects in over 400 patients.
Diverse landcover boosts yields for major U.S. crops, study finds
23hMonoculture—or specializing in a single crop, covering larger fields that can be harvested with bigger machines on a simplified landscape—is widely assumed to boost a farm's production capacity. A major study encompassing the mainland United States, however, suggests that the opposite is true. Nature Food published the research.
Plenty of Evidence for Recombination in SARS-CoV-2
23hDifferent variants of the virus behind the COVID-19 pandemic are swapping chunks of genetic material, but it’s not yet clear what implications that may have for public health.
US regulator grounds Virgin Galactic fleet over Branson space flight anomaly
23hFAA began probe after learning spacecraft veered out of designated airspace during founder’s July launch
Human oral microbiome cannot predict Pleistocene starch dietary level, and dietary glucose consumption is not essential for brain growth [Biological Sciences]
23hFellows Yates et al. (1) find amylase-binding bacteria in Late Pleistocene Neandertals and Homo sapiens dental calculus and project a starch-rich diet early and throughout human evolution and an essential role for starch in brain expansion. We recently argued for the need to use more paleobiological-type evidence to reconstruct past…
Reply to Ben-Dor et al.: Oral bacteria of Neanderthals and modern humans exhibit evidence of starch adaptation [Biological Sciences]
23hWe are pleased to see Ben-Dor et al.’s interest (1) in our study on the evolution and changing ecology of the hominid oral microbiome (2), which finds that starch-adapted oral bacteria are characteristic of the oral microbiota of Homo. However, in their critique, Ben-Dor et al. mischaracterize our findings by…
Correction for Elliott et al., Regenerative and durable small-diameter graft as an arterial conduit [Corrections]
23hENGINEERING, APPLIED BIOLOGICAL SCIENCES Correction for “Regenerative and durable small-diameter graft as an arterial conduit,” by Morgan B. Elliott, Brian Ginn, Takuma Fukunishi, Djahida Bedja, Abhilash Suresh, Theresa Chen, Takahiro Inoue, Harry C. Dietz, Lakshmi Santhanam, Hai-Quan Mao, Narutoshi Hibino, and Sharon Gerecht, which was first published June 10, 2019;…
Wetting of phase-separated droplets on plant vacuole membranes leads to a competition between tonoplast budding and nanotube formation [Plant Biology]
23hSeeds of dicotyledonous plants store proteins in dedicated membrane-bounded organelles called protein storage vacuoles (PSVs). Formed during seed development through morphological and functional reconfiguration of lytic vacuoles in embryos [M. Feeney et al., Plant Physiol. 177, 241–254 (2018)], PSVs undergo division during the later stages of seed maturation. Here, we…
The neural basis for violations of Weber’s law in self-motion perception [Neuroscience]
23hA prevailing view is that Weber’s law constitutes a fundamental principle of perception. This widely accepted psychophysical law states that the minimal change in a given stimulus that can be perceived increases proportionally with amplitude and has been observed across systems and species in hundreds of studies. Importantly, however, Weber’s…
Strategic basin and delta planning increases the resilience of the Mekong Delta under future uncertainty [Environmental Sciences]
23hThe climate resilience of river deltas is threatened by rising sea levels, accelerated land subsidence, and reduced sediment supply from contributing river basins. Yet, these uncertain and rapidly changing threats are rarely considered in conjunction. Here we provide an integrated assessment, on basin and delta scales, to identify key planning…
AR-negative prostate cancer is vulnerable to loss of JMJD1C demethylase [Medical Sciences]
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23hProstate Cancer 2021
Prostate cancer is a leading cause of cancer-related mortality in men. The widespread use of androgen receptor (AR) inhibitors has generated an increased incidence of AR-negative prostate cancer, triggering the need for effective therapies for such patients. Here, analysis of public genome-wide CRISPR screens in human prostate cancer cell lines…
Investor memory of past performance is positively biased and predicts overconfidence [Psychological and Cognitive Sciences]
23hWe document a memory-based mechanism associated with investor overconfidence. In Studies 1 and 2, investors were asked to recall their most important trades in the recent past and then reported investing confidence and trading frequency. After the study, they looked up and reported the actual returns of these trades. In…
Differential ligand-selective control of opposing enzymatic activities within a bifunctional c-di-GMP enzyme [Chemistry]
23hCyclic dimeric guanosine monophosphate (c-di-GMP) serves as a second messenger that modulates bacterial cellular processes, including biofilm formation. While proteins containing both c-di-GMP synthesizing (GGDEF) and c-di-GMP hydrolyzing (EAL) domains are widely predicted in bacterial genomes, it is poorly understood how domains with opposing enzymatic activity are regulated within a…
Stress increases in exopher-mediated neuronal extrusion require lipid biosynthesis, FGF, and EGF RAS/MAPK signaling [Neuroscience]
23hIn human neurodegenerative diseases, neurons can transfer toxic protein aggregates to surrounding cells, promoting pathology via poorly understood mechanisms. In Caenorhabditis elegans, proteostressed neurons can expel neurotoxic proteins in large, membrane-bound vesicles called exophers. We investigated how specific stresses impact neuronal trash expulsion to show that neuronal exopher production
Learning nonnative speech sounds changes local encoding in the adult human cortex [Neuroscience]
23hAdults can learn to identify nonnative speech sounds with training, albeit with substantial variability in learning behavior. Increases in behavioral accuracy are associated with increased separability for sound representations in cortical speech areas. However, it remains unclear whether individual auditory neural populations all show the same types of changes with…
Governing complexity: Integrating science, governance, and law to manage accelerating change in the globalized commons [Sustainability Science]
23hThe speed and uncertainty of environmental change in the Anthropocene challenge the capacity of coevolving social–ecological–technological systems (SETs) to adapt or transform to these changes. Formal government and legal structures further constrain the adaptive capacity of our SETs. However, new, self-organized forms of adaptive governance are emerging at multiple scales…
Biochemical reconstitution defines new functions for membrane-bound glycosidases in assembly of the bacterial cell wall [Microbiology]
23hThe peptidoglycan cell wall is a macromolecular structure that encases bacteria and is essential for their survival. Proper assembly of the cell wall requires peptidoglycan synthases as well as membrane-bound cleavage enzymes that control where new peptidoglycan is made and inserted. Previous studies have shown that two membrane-bound proteins in…
Tril dampens Nodal signaling through Pellino2- and Traf6-mediated activation of Nedd4l [Developmental Biology]
23hToll-like receptor 4 (Tlr) interactor with leucine-rich repeats (Tril) functions as a Tlr coreceptor to mediate innate immunity in adults. In Xenopus embryos, Tril triggers degradation of the transforming growth factor β (Tgf-ß) family inhibitor, Smad7. This enhances bone morphogenetic protein (Bmp) signaling to enable ventral mesoderm to commit to…
Cyclodextrins increase membrane tension and are universal activators of mechanosensitive channels [Biophysics and Computational Biology]
23hThe bacterial mechanosensitive channel of small conductance (MscS) has been extensively studied to understand how mechanical forces are converted into the conformational changes that underlie mechanosensitive (MS) channel gating. We showed that lipid removal by β-cyclodextrin can mimic membrane tension. Here, we show that all cyclodextrins (CDs) can activate reconstituted…
A simple model for control of COVID-19 infections on an urban campus [Population Biology]
23hA customized susceptible, exposed, infected, and recovered compartmental model is presented for describing the control of asymptomatic spread of COVID-19 infections on a residential, urban college campus embedded in a large urban community by using public health protocols, founded on surveillance testing, contact tracing, isolation, and quarantine. Analysis in the…
Deep-time climate legacies affect origination rates of marine genera [Environmental Sciences]
23hBiodiversity dynamics are shaped by a complex interplay between current conditions and historic legacy. The interaction of short- and long-term climate change may mask the true relationship of evolutionary responses to climate change if not specifically accounted for. These paleoclimate interactions have been demonstrated for extinction risk and biodiversity change,…
Inhibitor potency and assay conditions: A case study on SARS-CoV-2 main protease [Biological Sciences]
23hLi et al. (1) report known drugs as inhibitors of the main protease (Mpro) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The compounds, including atazanavir, were initially identified by virtual screening, followed by fluorescence resonance energy transfer (FRET)-based biochemical inhibition assays. In this letter, we demonstrate that the inhibitory…
Energy penalties enhance flexible receptor docking in a model cavity [Biophysics and Computational Biology]
23hProtein flexibility remains a major challenge in library docking because of difficulties in sampling conformational ensembles with accurate probabilities. Here, we use the model cavity site of T4 lysozyme L99A to test flexible receptor docking with energy penalties from molecular dynamics (MD) simulations. Crystallography with larger and smaller ligands indicates…
Sorting for secreted molecule production using a biosensor-in-microdroplet approach [Applied Biological Sciences]
23hSorting large libraries of cells for improved small molecule secretion is throughput limited. Here, we combine producer/secretor cell libraries with whole-cell biosensors using a microfluidic-based screening workflow. This approach enables a mix-and-match capability using off-the-shelf biosensors through either coencapsulation or pico-injection. We demonstrate the cell type and library agnostic na
Structural basis of P[II] rotavirus evolution and host ranges under selection of histo-blood group antigens [Biophysics and Computational Biology]
23hGroup A rotaviruses cause severe gastroenteritis in infants and young children worldwide, with P[II] genogroup rotaviruses (RVs) responsible for >90% of global cases. RVs have diverse host ranges in different human and animal populations determined by host histo-blood group antigen (HBGA) receptor polymorphism, but details governing diversity, host ranges, and…
Reply to Behnam and Klein: Potential role of the His-tag in C-terminal His-tagged SARS-CoV-2 main protease [Biological Sciences]
23hBehnam and Klein (1) carried out in vitro assays on two severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) main protease (Mpro) inhibitors, including atazanavir reported by us (2), using an Mpro protein with C-terminal His-tag under various assay conditions, and find that both the Michaelis−Menten constant (Km) and inhibitory activity…
Spin-textured Chern bands in AB-stacked transition metal dichalcogenide bilayers [Physics]
23hWhile transition-metal dichalcogenide (TMD)–based moiré materials have been shown to host various correlated electronic phenomena, topological states have not been experimentally observed until now [T. Li et al., Quantum anomalous Hall effect from intertwined moiré bands. arXiv [Preprint] (2021). https://arxiv.org/abs/2107.01796 (Accessed 5 July 2021)]. In this work, using first-principle calculat
Bob Scholes: Multifaceted scientist with a genius for synthesis [Retrospectives]
23hProf. Robert (Bob) Scholes passed away unexpectedly on April 28, 2021, while on an 11-day, 160-km hike along the Kunene River in northern Namibia. Energetic, enthusiastic, and larger than life to the very end, his sudden passing was a huge shock and loss to his colleagues and loved ones. But…
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