Lisa Piccirillo encountered the more than 50-year-old question by chance at a conference. Her solution relies on a classical tool called the knot trace.
The first astronauts launched by SpaceX are breaking new ground for style with hip spacesuits, gull-wing Teslas and a sleek rocketship—all of it white with black trim.
This week our satellite passes close to Spica, the constellation's only bright star The moon visits one of the spring constellations this week by traveling through the faint constellation of Virgo, the virgin. On 1 and 2 June, our natural satellite will pass close to Virgo's only bright star, Spica. Memorise its position and then return in the days to come to pick out the constellation's other, f
The rate of strokes in COVID-19 patients appears relatively low, but a higher proportion of those strokes are presenting in younger people and are often more severe compared to strokes in people who do not have the novel coronavirus, while globally rates for stroke hospitalizations and treatments are significantly lower than for the first part of 2019, according to new research.
Researchers have developed a membrane that can be attached to a regular N95 mask and replaced when needed. The filter has a smaller pore size than normal N95 masks, potentially blocking more virus particles.
Nearly half of parents of children under age 18 say their stress levels related to the coronavirus pandemic are high, with managing their kids' online learning a significant source of stress for many, according to a new survey by the American Psychological Association.
Regions of Italy with higher family fragmentation and a high number of residential nursing homes experienced the highest rate of COVID-19 infections in people over age 80, according to a new study.
Researchers have succeeded in detecting anti-avian influenza virus antibody in blood serum within 20 minutes, using a portable analyzer they have developed to conduct rapid on-site bio tests. If a suitable reagent is developed, this technology could be used to detect antibodies against SARS-CoV-2, the causative virus of COVID-19.
Eating more fiber can improve life expectancy for those with diabetes, researchers say. Type 2 diabetes has reached epidemic proportions worldwide, is associated with serious medical complications, and increases the risk of dying from COVID-19.
It's inappropriate to consider blanket do-not-resuscitate orders for COVID-19 patients because adequate data is not yet available on US survival rates for in-hospital resuscitation of COVID-19 patients and data from China may not relate to US patients, according to a new article.
Researchers have succeeded in detecting anti-avian influenza virus antibody in blood serum within 20 minutes, using a portable analyzer they have developed to conduct rapid on-site bio tests. If a suitable reagent is developed, this technology could be used to detect antibodies against SARS-CoV-2, the causative virus of COVID-19.
In the beginning, everyone was skeptical. But Elon Musk's SpaceX defied expectations—and on Wednesday hopes to make history by ferrying two NASA astronauts into space, the first crewed flight from US soil in nine long years.
Switching to Android doesn't mean all your Apple data is inaccessible. (Tomasz Zagórski/Unsplash/) Maybe you use an iPhone at home and an Android phone for work, are thinking about switching from Apple to Google hardware, or just need to take a look at some iCloud data on an Android tablet. Whatever the reason, accessing your iCloud data from an Android device isn't quite as tricky as you might t
Organisms carry long-term 'memories' of their ancestral homelands that help them adapt to environmental change, according to a new study that involved raising chickens on the Tibetan Plateau and an adjacent lowland site.
Nature, Published online: 22 May 2020; doi:10.1038/d41586-020-01561-9 Bumblebees bite into leaves to induce flowering up to one month earlier. Plus: Social distancing cut the flu season short and some US coronavirus testing stats are "uninterpretable".
Idaho is one of the most sparsely populated states in the union, with fewer than 1.8 million residents living on about 83,500 square miles, or about 21 people per square mile. Much of the land is protected protected wilderness area, or held by the U.S. Forest Service. Here are a few glimpses of the landscape of Idaho and some of the wildlife and people calling it home. This photo story is part of
Falcon 9 rocket to make history as billionaire seeks to commercialise space travel Elon Musk's SpaceX company hopes to make history on Wednesday by launching the first astronauts into space from US soil in nine years, as the billionaire takes the next step in his dream to commercialise space travel. Donald Trump will be among the spectators at Kennedy space centre in Florida to witness the launch
The clear plastic guards may be easier to wear, disinfect and reuse than cloth or surgical face coverings, although they don't entirely replace the need for masks.
Virgin Galactic sister company aims to launch dummy satellite Elon Musk's Crew Dragon puts America back in the space race Richard Branson's Virgin Orbit postponed its first space launch on Sunday, due to a technical problem. Related: Richard Branson to sell $500m worth of Virgin Galactic shares Continue reading…
'Phrenology' has an old-fashioned ring to it. It sounds like it belongs in a history book, filed somewhere between bloodletting and velocipedes. We'd like to think that judging people's worth based on the size and shape of their skull is a practice that's well behind us. However, phrenology is once again rearing its lumpy head. In recent years, machine-learning algorithms have promised government
The clear plastic guards may be easier to wear, disinfect and reuse than cloth or surgical face coverings, although they don't entirely replace the need for masks.
The carbon-hydrogen bond — 2/3 of all bonds in hydrocarbons — has defied chemists' attempts to open it up and add new chemical groups. A team has now cracked the strongest of C-H bonds, those on a molecule's terminal carbon. The reaction catalyst is an iridium atom to break the bond and a methyl group to add a boron compound. Boron is easily exchanged for other groups, allowing additions to hydr
The carbon-hydrogen bond — 2/3 of all bonds in hydrocarbons — has defied chemists' attempts to open it up and add new chemical groups. A team has now cracked the strongest of C-H bonds, those on a molecule's terminal carbon. The reaction catalyst is an iridium atom to break the bond and a methyl group to add a boron compound. Boron is easily exchanged for other groups, allowing additions to hydr
Why is sex so popular in nature? A new article suggests that the molecular mechanisms underlying sex and the stress response may be more tightly coupled than previously appreciated, providing a new explanation for the widespread prevalence of sex in nature.
Most of the words that follow aren't necessary to see why the reveal of Unreal Engine 5, an Epic Games video game graphics engine set for release in 2021, blew up the internet last week. You can watch the following video, know that this is a demo of a video game and not footage of anything real, forget the technical aspects being discussed, and simply see that video game graphics are about to tak
PLUS. Forskellene mellem økologi og konventionel planteavl er meget lille, når det kommer til udledning af den klimaskadelige lattergas og den miljøskadelige kvælstof, konkluderer forskere.
Magnesium dimer (Mg2) is a fragile molecule consisting of two weakly interacting atoms held together by the laws of quantum mechanics. It has recently emerged as a potential probe for understanding fundamental phenomena at the intersection of chemistry and ultracold physics, but its use has been thwarted by a half-century-old enigma — five high-lying vibrational states that hold the key to unders
Whether PM's chief adviser contravened regulations depends on definition of 'reasonable excuse' Coronavirus – latest updates See all our coronavirus coverage On 23 March, the prime minister announced a nationwide lockdown to slow the spread of coronavirus. "I must give the British people a very simple instruction – you must stay at home," said Boris Johnson. Dominic Cummings certainly ignored tha
Meiosis is essential to sexual reproduction. For almost 15 years, it has been commonly held that retinoic acid, a molecule derived from vitamin A, triggers meiosis in mammalian germ cells. Yet new research demonstrates that meiosis in mice begins and proceeds normally even in the absence of retinoic acid. These findings set the stage for new research in the field of reproductive biology.
In time for the International Day for Biological Diversity 2020, the date set by the United Nations to recognize biodiversity as 'the pillars upon which we build civilizations', a new study describes two new to science species and one subspecies of crocodile newts from Vietnam. This manifestation of the incredible diversity of life hosted on our planet comes, however, as an essential reminder of h
Marina, the African penguin, on a mini safari checks out a hypomelanistic crocodile safely from one side of the glass at the Audubon Aquarium of the Americas in New Orleans. (Courtesy of Audubon Aquarium of the Americas/) What do you get when a tegu lizard, a penguin, and a sloth walk into an aquarium? Some very precious photo ops . Due to to COVID-19, creatures in captivity have a lot more alone
The very message that was at the core of the government's plan to suppress Covid-19 – stay at home – has been undermined The lockdown was a nationwide policy: everyone was expected to follow the same rules. It has nevertheless exposed some stark inequalities. Elites have been able to endure the period in comfort, often in remote, spacious holiday homes. Those with office jobs have found themselve
O ver the past decade, no one has added more to my understanding of how we think about, discuss, and debate politics and religion than Jonathan Haidt. I first connected with Haidt in 2012, after I wrote a blog post for Commentary based on an interview in which Haidt discussed his book The Righteous Mind: Why Good People Are Divided by Politics and Religion . "It's extremely easy to spot the weak
(Caroline Tompkins) An orange on the first day, an apple the next Down for the count with a parking-lot picnic Out on the town in a parking-lot panic I saw—saw!—the lake before falling asleep A coin for your feelings? My heart sliced like an apple The lake shone like milkglass before the storm hit it Take your coffee and go, take your protocols with you Store what you desire for the worst of the
This would have been a scary ingredient for a Caesar salad: Anchovies' ancient relatives were three feet long and had a nasty set of chompers, according to a study from the University of Michigan.
An aerial search in the Peruvian desert has revealed intriguing figures of humans and animals that predate the nearby Unesco world heritage site A faded decades-old black-and-white photograph was the only lead Johny Isla had when he set out on the trail of a sea monster. The Peruvian archaeologist spotted the image at a 2014 exhibition in Germany about the Nazca Lines, the vast and intricate dese
Editor's Note: This article is part of a series of commencement addresses commissioned by The Atlantic for students who will not be able to attend their graduations because of the pandemic. Find the collection here . Congratulations to the class of 2020. This is the point where I'm supposed to project calm and confidence, and reassure you that everything you're experiencing right now will be a ti
Editor's Note: The Atlantic is making vital coverage of the coronavirus available to all readers. Find the collection here . adam maida In March, when a woman in Seattle volunteered for a COVID-19 vaccine trial, rumors immediately began circulating that she was a crisis actor who had received a fake vaccine. She is, in fact, real, and so is the prospective vaccine she got, as the Associated Press
Twenty years ago, back in March, I started feeling a nebulous but very intense aversion to watching anything longer than 25 minutes. There have been some exceptions—I can get through movies under the right circumstances, and I would probably watch another 10 hours of The Last Dance , despite knowing nothing about basketball, Michael Jordan, or the intricate politics of sports franchises (but bein
Your questions answered based on current knowledge and the latest research from scientists Coronavirus – latest updates See all our coronavirus coverage That remains unclear. A key question is whether antibodies produced by the body following an infection with the coronavirus provide some level of immunity, and if so, for how long. Continue reading…
Women's bodies are different from men's from cellular level upwards, yet the same treatments are usually prescribed for both sexes – to the detriment of women. Dr Alyson McGregor raises the alarm Towards the end of her training in emergency medicine at Brown University, Rhode Island, Dr Alyson McGregor was asked what her "specialism" would be. "You are expected to have a niche so my answer was, '
Edward Snowden revealed the agency's phone-record tracking program. But thanks to "precomputed contact chaining," that database was much more powerful than anyone knew.
Exclusive: Sohail Hughes accused of spreading Covid-19 and violating visa regulations Coronavirus – latest updates See all our coronavirus coverage A British man has been detained in an Indian prison after being accused of breaching the country's strict coronavirus lockdown rules. Sohail Hughes, 29, had been on an extended holiday to visit family in the Gujarat region before undertaking a pilgrim
A s schools around the world cautiously reopen, we in the United States are seeing an unsettling glimpse of our future. Some images filtering in from other countries are deeply depressing (French children cordoned off in white squares on a playground) while others evoke wary amusement (Chinese children in masks and handmade propeller beanies with four-foot wingspans). A few are actually inspiring
Esteemed Class of 2020, your commencement speaker this year should be a destroyed celebrity or the Fool from King Lear. Someone whose inside is on the outside, someone who's kind of already died. Instead it's fallen to me. So let's see. Do I offer commiseration to this groundbreakingly screwed generation? You're graduating, as of course you know, into world-historical vertigo. The prophecies are
PLUS. Et 30 meter højt vindmølletårn af træ er blevet opført ved Gøteborg. Tårne på 'mindst 150 meter' er på vej, hvis den første test viser gode resultater. Virksomheden bag lover to-cifrede besparelser på tårne, der typisk udgør 15-30 procent af omkostningen på en vindmølle.
Sarah Blesener / The New York Times / Redux Washington legend has it that bureaucrats and political operatives overwhelmingly stay in issue advocacy or politics after their bosses leave office. But that notion is decades out-of-date. These days, many top officials who leave the D.C. swamp go directly to the private sector—and are paid handsomely to do so. More of former President Barack Obama's
Watching the wildlife outside your window can boost your mental well-being , and it's something lots of people have been doing a lot more of lately. Maybe you've been wondering if you're seeing one persistent gray squirrel or a rotating cast of furry characters. Maybe you've been thinking about which birds are passing through for the season and which are townies who stick around all year. As a wi
Amid the confusion of the pandemic, the views of serious scientific dissenters are being swiftly metabolized by a sprawling world of ideologues and conspiracy theorists — most notably in a series of documentaries and video interviews, some of which are now earning millions of online viewers.
Scientist who oversaw the response to Sars says country has failed the vulnerable Coronavirus – latest updates See all our coronavirus coverage The predecessor of Sweden's state epidemiologist has broken her silence on the country's controversial coronavirus strategy, saying she now believes the authorities should have put in place tougher restrictions in the early stages of the pandemic to bring
The launch of the billionaire's vessel will be the first manned US flight since shuttle missions were shut down nine years ago When American astronauts Bob Behnken and Doug Hurley arrive at the International Space Station this week, they will find an unusual message waiting for them. On the inside of the hatch where their SpaceX Crew Dragon spacecraft is scheduled to dock, a small stars and strip
Trials could be speeded up by using risky strategy of deliberately introducing the virus Coronavirus – latest updates See all our coronavirus coverage Scientists have warned there could be major delays in producing a Covid-19 vaccine if current UK infection rates remain low and lengthy waiting times are needed to show if candidate products are working. As a result, some researchers insist that mi
The Royal Society president says scientists must not be made scapegoats for policy failures Coronavirus – latest updates See all our coronavirus coverage In 1981, a virus that had jumped the species barrier some decades earlier to infect humans began to wreak havoc among the gay community in San Francisco and New York. A taskforce was set up to study the cause of this disease, and it took a few y
As the national death toll approaches 100,000, U.S. governors and Trump advisers will appear on Sunday talk shows. Protesters returned to the streets in Hong Kong, and clashed with the police.
Ersättaren till freoner kan brytas ner till de svårnedbrytbara och i vissa fall hormonstörande kemikalierna PFAS. Kemikalieinspektionen förslår nu en begränsad användning av alla PFAS-ämnen. Spela videon för att höra forskaren berätta om sin studie.
New witnesses cast doubt on Cummings's lockdown claims; Trump golfs in Virginia; WHO says pandemic 'taking different pathway' in Africa. Follow the latest updates Six million Australians download tracing app Global report: Muslims face curfews ahead of Eid amid Covid-19 crisis America begins to unlock for summer – but is it inviting a second wave? New witnesses cast doubt on Dominic Cummings's lo
Two years ago, after becoming sick with a virus that led to pneumonia, my 71-year-old father died unexpectedly of a blood clot at NYU's hospital. My brothers and I didn't get a chance to say goodbye, and on the day of my father's death in March—one of those balmy days when the pivot from winter to spring sings along your skin—I found myself mourning not just his death, but the fact that he had be
The study, conducted in Switzerland, found that having multiple sleep-wake disturbances such as sleep-disordered breathing, extreme long or short sleep duration, insomnia and restless leg syndrome independently and significantly increased the risk of a new cardio-cerebrovascular event in the two years following a stroke.
In one study, researchers from Turkey reported increasing stimulant use among medical students approaching their final exams, despite the substantial risks to their health. In the second study, researchers from the Netherlands detailed the neurological outcomes associated with recreational use of laughing gas (nitrous oxide), suggesting that, for some individuals, permanent neurological damage can
It seems like entire libraries have been written about the Mount St. Helens eruption. Here are four books well worth reading. — Read more on ScientificAmerican.com
Efforts to treat drug dependence have been scaled back during the pandemic. (Amixstudio/Deposit Photos/) Melissa Cyders is an associate professor of psychology, IUPUI. Kevin L. Ladd is a professor at Indiana University. Melissa S. Fry is the directo of Applied Research and Education Center at Indiana University. This story originally featured on The Conversation . The closures of businesses and s
Authorities began clearing roads and assessing damage on Friday after Cyclone Amphan barreled through coastal communities in eastern India and neighboring Bangladesh, killing more than 100 people and leaving millions displaced.
Pressure is growing inside and outside parliament for the resignation of the No 10 chief adviser after claims that he flouted lockdown rules It was Mother's Day – 22 March – and as Covid-19 spread across the country, Boris Johnson was urging families not to mark the occasion as normal. "This Mothering Sunday," he said, "the single best present we can give – we who owe our mothers so much – is to
The Swedes were the Brexiters' poster nation, but now have Europe's worst death rate Coronavirus – latest updates Tell us: have you been affected by the coronavirus? Covid-19 is nature's way of making bad situations worse. From the moment it turned the world upside down, you could have predicted that the Chinese Communist party would have arrested whistleblowers and covered up the threat to human
That mouse packaging takes us back. (Microsoft/) If you had a Windows computer before you had the internet, you probably played plenty of Solitaire. Starting in 1990 with Windows 3.0, Microsoft bundled the delightfully frustrating card game into its operating system. Sure, it was fun, but it also served to help introduce people to the concept of dragging and dropping items by clicking on them wit
Latest figures from public health authorities on the spread of Covid-19 in the United Kingdom. Find out how many confirmed cases have been reported in each of England's local authorities Coronavirus – live news updates Find all our coronavirus coverage here How to protect yourself from infection Please note: these are government figures on numbers of confirmed cases – some people who report sympt
A new study highlights the need to engage Indigenous communities in managing sea otter population recovery to improve coexistence between humans and this challenging predator.
High-intensity fires can destroy marshy peatlands and cause them to emit huge amounts of their stored carbon into the atmosphere as greenhouse gases, but a new study finds low-severity fires spark the opposite outcome. By creating a decay-inhibiting crust on clumps of moist soil particles within the peatland, the smaller surface fires help protect the stored carbon and enhance peatlands' long-term
Researchers have discovered a way to monitor the performance of 3D printed parts, which tend to have imperfections that affect performance in ways traditionally-machined parts do not.
Research demonstrates that the characteristic zig-zag pattern on a viper's back performs opposing functions during a predation event. At first, the zig-zag pattern helps the snake remain undetected. But upon exposure, it provides a conspicuous warning of the snake's dangerous defense. Most importantly the zig-zag can also produce an illusionary effect that may hide the snake's movement as it flees
The desperate hunt for treatments and vaccines has changed how researchers, regulators, drug companies like Moderna, investors and journalists do their jobs.
Have a 'kaffeeklatsch' until you become 'unsoulclogged': archaic soothing terms to use in troubling times Like language, our emotions are universal and whatever fears and anxieties we are now experiencing, someone else in centuries gone by has felt the same way. Here is an A-Z of archaic and forgotten words that at some point in the past exactly described an elusive sense of peace, calm and delig
COMPUTING OpenAI's Supercomputer Collaboration With Microsoft Marks Its Biggest Bet Yet on AGI Kyle Wiggers | VentureBeat "Today, during Microsoft's Build 2020 developer conference, the first fruit of the partnership was revealed, in the form of a new supercomputer that Microsoft says was built in collaboration with—and exclusively for—OpenAI on Azure. Microsoft claims it's the fifth most powerfu
Gas Monkey partners with the Gary Sinise Foundation to build a custom '81 Jeep CJ7 as a throwback tribute to the soldiers for Veteran's Day. Stream Full Episodes of Fast N' Loud: https://go.discovery.com/tv-shows/fast-n-loud/ Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on Twitter: https://twitter.com/FastNLoudTV https://twitter.com/Discovery Join Us on Facebook: https://www
The transformation of dough into a loaf is chemistry in action. With a bit of physics and microbiology. And love… If bread is rising, sourdough is soaring. Along with pasta and toilet rolls, flour was among the first products to vanish from supermarket shelves and Covid-19 inspired a home-baking boom . While Google searches for "bread" tripled in the UK in the weeks after mid-March, those for "so
Before we present this week's Weekend Reads, a question: Do you enjoy our weekly roundup? If so, we could really use your help. Would you consider a tax-deductible donation to support Weekend Reads, and our daily work? Thanks in advance. Sending thoughts to our readers and wishing them the best in this uncertain time. The week … Continue reading
(Keith Trumbo / Condé Nast via Getty) She's a mother and she drinks wine. Technically, that's all it takes to join the ranks of "wine moms," and yet the phrase has come to represent so much more than motherhood and wine enjoyment. A wine mom, alone, is someone who likes a drink to take the edge off of parenting, and who's willing to poke fun at that fact. But en masse, wine moms have come to repr
The word unique has to be one of the most overused descriptors in show business; if every movie that got touted as one-of-a-kind by its marketing team actually was, there'd be no further complaints about Hollywood creativity. But every once in a while, I'll have a cinematic experience that feels genuinely unprecedented, when a work plays with the medium and its modes of storytelling in ways I did
The pandemic has taken an acute toll on tribal nations that are also struggling with a lack of running water, sparse internet, and a high rates of chronic illness.
The technology needs widespread adoption to help slow the pandemic. And while the debate has centered on privacy, accuracy concerns could also send users fleeing.
In a recent campaign ad , Joe Biden accused the president of being too soft on China over COVID-19. This decision to criticize Donald Trump on China and subsequent signals that Biden will take a tough approach toward Beijing have made some progressives nervous. Writing in The Atlantic , Peter Beinart called Biden's ad "a jingoistic fantasy" that may put Asian Americans in the crosshairs of racist
Since the early days of the pandemic, I've been living with my in-laws in rural Connecticut. More recently, my husband's sister and her nine-month-old son joined us. I've always tried to avoid the kind of multigenerational household I grew up in, but I'm finding the arrangement surprisingly satisfying. In China, where I'm from, three or four generations commonly live together under one roof. At o
On Wednesday, May 27, at 4:33 p.m. US Eastern Time, NASA astronauts Bob Behnken and Doug Hurley are scheduled to launch into orbit for a rendezvous with the International Space Station. This is standard stuff, except for three important facts: it will be the first time in almost nine years that American astronauts have flown to space from American soil; it will be the first time in history astron
President Donald Trump began his week with a staggering admission. Seemingly off the cuff, he announced that he was taking the drug hydroxychloroquine. What followed was a public debate strange even by present standards. Was the president telling the truth, or was he lying, in a sly provocation, to annoy reporters who have fetishized his recurring promotion of the drug? The evidence that the pres
As of this week, all 50 states have begun reopening to some degree from counter-pandemic measures. That's a remarkable milestone, and a big shift in policy in a short period of time. It might be cause for celebration if it were clearly rooted in either public opinion or public-health data. But the reopening comes as case numbers in many parts of the country continue to rise, experts warn of furth
Den digitale omstilling, alle har været i gang med under coronaepidemien, betyder, at vi vil se en ny måde at efteruddanne os på, lyder det fra DTU, IDA og Mannaz. Lige nu sparer virksomhederne imidlertid på at sende de ansatte på efteruddannelse.
Senate Democrats liked former President Barack Obama, but never feared him; Senate Republicans fear incumbent President Donald Trump, but don't necessarily like him. Should Trump lose the election in November, any grieving inside GOP offices could be short-lived—no more having to defend an unpopular president whose handling of the pandemic has distressed many Americans. "I don't think there's a l
As the coronavirus pandemic continues to spread, Undark readers have been sending us numerous insightful questions, comments, and observations on the subject. We've asked the Pulitzer Prize-winning science journalist and Undark's publisher, Deborah Blum, to dedicate some time to responding.
An Arctic research expedition faces a carefully orchestrated crew change. Members reflect on how they feel about emerging from the ship into a pandemic, or from social isolation into close quarters.
Den meget lange periode fra anlæggets vedtagelse til dets endelige færdiggørelse kan synes urimelig, men sådan er vilkårene for anlæg af motorveje i dagens Danmark, konstaterede Ingeniøren i 1971 i en artikel om Den jyske motorvej.
A British utility will pay some residential consumers to keep the lights on during the pandemic, and South Korea is closing karaoke parlors. President Trump suggested that the U.S. death toll was inflated.
Researchers from Tokyo Metropolitan University have surveyed the amount of gadolinium found in river water in Tokyo. Gadolinium is contained in contrast agents given to patients undergoing medical magnetic resonance imaging (MRI) scans, and it has been shown in labs to become toxic when exposed to ultraviolet rays. The researchers found significantly elevated levels, particularly near water treatm
Kroppen använder en mängd olika celler och molekyler för att skydda oss från virus och andra sjukdomsorganismer. Spela videon för att se hur det går till.
A gene whose mutated form is associated with cancer in humans turns out to have a role in burning calories over a long evolutionary history. — Read more on ScientificAmerican.com
A gene whose mutated form is associated with cancer in humans turns out to have a role in burning calories over a long evolutionary history. — Read more on ScientificAmerican.com
If you're worried about wiping down grocery bags or disinfecting mailed packages, this C.D.C. guidance might bring some relief. It's not new information; the agency has been saying this for months.
Metastatic colorectal cancer (mCRC) patients have poor overall survival despite using irinotecan- or oxaliplatin-based chemotherapy combined with anti-EGFR (epidermal growth factor receptor) drugs, especially those with the oncogene mutation of KRAS. Metformin has been reported as a potentially novel antitumor agent in many experiments, but its therapeutic activity is discrepant…
Morphogenesis, tumor formation, and wound healing are regulated by tissue rigidity. Focal adhesion behavior is locally regulated by stiffness; however, how cells globally adapt, detect, and respond to rigidity remains unknown. Here, we studied the interplay between the rheological properties of the cytoskeleton and matrix rigidity. We seeded fibroblasts onto…
We studied the electrical transport of Fe4+δSe5 single-crystal nanowires exhibiting √5 × √5 Fe-vacancy order and mixed valence of Fe. Fe4+δSe5 compound has been identified as the parent phase of FeSe superconductor. A first-order metal-insulator (MI) transition of transition temperature TMI ∼ 28 K is observed at zero magnetic fields…
Displacive transformations in colloidal crystals may offer a pathway for increasing the diversity of accessible configurations without the need to engineer particle shape or interaction complexity. To date, binary crystals composed of spherically symmetric particles at specific size ratios have been formed that exhibit floppiness and facile routes for transformation…
Viral immune evasion is currently understood to focus on deflecting CD8 T cell recognition of infected cells by disrupting antigen presentation pathways. We evaluated viral interference with the ultimate step in cytotoxic T cell function, the death of infected cells. The viral inhibitor of caspase-8 activation (vICA) conserved in human…
We report experimental microfluidic measurements and theoretical modeling of elastoviscoplastic materials under steady, planar elongation. Employing a theory that allows the solid state to deform, we predict the yielding and flow dynamics of such complex materials in pure extensional flows. We find a significant deviation of the ratio of the…
The most prevalent human carcinogen is sunlight-associated ultraviolet (UV), a physiologic dose of which generates thousands of DNA lesions per cell, mostly of two types: cyclobutane pyrimidine dimers (CPDs) and 6-4 photoproducts (6-4PPs). It has not been possible, in living cells, to precisely characterize the respective contributions of these two…
Multiple sclerosis (MS) is a demyelinating disease of the central nervous system (CNS) characterized by neuronal and axonal damage resulting in a decline in motor and sensory functions (1). Although the ultimate cause of the disease has yet to be defined, the immune system and, in particular, pathogenic T cells…
Complete encapsulation of high-content sulfur in porous carbon is crucial for high performance Li−S batteries. To this end, unlike conventional approaches to control the pore of carbon hosts, we demonstrate controlling the interfacial energy of the solution in the process of penetrating the sulfur-dissolved solution. We unveil, experimentally and theoretically,…
Striated muscle contraction involves sliding of actin thin filaments along myosin thick filaments, controlled by calcium through thin filament activation. In relaxed muscle, the two heads of myosin interact with each other on the filament surface to form the interacting-heads motif (IHM). A key question is how both heads are…
President Trump ordered states to reopen places of worship, but several governors said that decision would be their call. Persistently high case levels in Los Angeles, Chicago and Washington have medical experts concerned.
Immunizations are falling because of pandemic disruptions, raising fears of surges in preventable disease. Lockdowns complicate the Muslim holiday Eid. China's National People's Congress offers a show of strength.
Tegn abonnement på
BioNyt Videnskabens Verden (www.bionyt.dk) er Danmarks ældste populærvidenskabelige tidsskrift for naturvidenskab. Det er det eneste blad af sin art i Danmark, som er helliget international forskning inden for livsvidenskaberne.
Bladet bringer aktuelle, spændende forskningsnyheder inden for biologi, medicin og andre naturvidenskabelige områder som f.eks. klimaændringer, nanoteknologi, partikelfysik, astronomi, seksualitet, biologiske våben, ecstasy, evolutionsbiologi, kloning, fedme, søvnforskning, muligheden for liv på mars, influenzaepidemier, livets opståen osv.
Artiklerne roses for at gøre vanskeligt stof forståeligt, uden at den videnskabelige holdbarhed tabes.
Share this ArticleLike this article? Email it to a friend!
Recent Comments