Paleontologists have found a fossil site in North Dakota that contains animals and plants killed and buried within an hour of the meteor impact that killed the dinosaurs 66 million years ago. This is the richest K-T boundary site ever found, incorporating insects, fish, mammals, dinosaurs and plants living at the end of the Cretaceous, mixed with tektites and rock created and scattered by the impa
Paleontologists have found a fossil site in North Dakota that contains animals and plants killed and buried within an hour of the meteor impact that killed the dinosaurs 66 million years ago. This is the richest K-T boundary site ever found, incorporating insects, fish, mammals, dinosaurs and plants living at the end of the Cretaceous, mixed with tektites and rock created and scattered by the impa
An experiment conducted by white hat hackers and reported by CNBC show that Tesla vehicles store more information than you might think — and they even keep your data unencrypted. It's …
Facebook CEO Mark Zuckerbergwhose company has blundered its way into controversies over everything from user privacy and data breaches to amplification of extremist content and literal genocide …
Paleontologists have discovered the first-confirmed occurrence of a lambeosaurine (crested 'duck-billed' dinosaur) from the Arctic — part of the skull of a lambeosaurine dinosaur from the Liscomb Bonebed (71-68 Ma) found on Alaska's North Slope. The discovery proves for the first time that lambeosaurines inhabited the Arctic during the Late Cretaceous.
This weekend is WonderCon, which means an opportunity for some exciting new announcements, and yesterday DC Universe dropped a whole bevy of em. Read more…
Millions of long-time marijuana users are developing intense stomach pain, nausea and bouts of vomiting. The condition is called "cannabinoid hyperemesis syndrome," or "CHS." What makes it happen is unclear, but the only way to stop it is to cease consumption of cannabis. None It's no longer illegal to smoke marijuana in 10 U.S. states and its medical use is allowed in 33. In Colorado, it's been
But the stop-gap measure, now before Congress, includes a provision that some regard as a major step backward For the 40 million people who depend on water from the Colorado River Basin, including me, there's no escaping this stark reality: Our thirst for water exceeds what's actually available. That's mostly because rising temperatures are sapping moisture from the environment even as demand for
På lördagskvällen 20.30 släcker världen lamporna för miljöns skull. För tolfte året i rad står Världsnaturfonden WWF bakom kampanjen Earth Hour, som startade i Sydney 2007 och blev global året därpå.
This is a story about you. This is a story about your life. Satya Nadella, CEO of Microsoft, recently said "we're not going to withhold technology from institutions that we have elected" as he defends his firm's $479 million military contract for AI gear against employee outcries – and it has terrified me to write this manifesto – I hope you help spread its thoughts. Based on statistics regardi
The art of magic offers a fascinating insight into the psychology of reality and perception The magician picks up a coin, conceals it in his hand and, after a magical gesture, it mysteriously disappears, only to reappear from behind your ear. As you watch this performance, you fully understand that objects cannot simply materialise from thin air, yet this is exactly what you have just experienced
A chronological listing of news articles posted on the Skeptical Science Facebook Page during the past week, i.e., Sun, Mar 24 through Sat, Mar 30, 2019 Editor's Pick Earth Hour 2019: switch off your lights, and become an innovator On March 30, millions of people switch off their lights for Earth Hour Let's take 30 seconds to think about innovators. What do they look like? Where do they work? Wha
Sega around this time last year announced plans to produce a miniature version of its Mega Drive console, better known as the Sega Genesis in North America. The retro gaming system was due out …
Technological advancements were supposed to free up our time and free up our minds, leading to a cognitive surplus. That hasn't happened, says Douglas Rushkoff. The digital media environment deals in absolutes: yes or no; thumbs up or thumbs down. Chasing weird uncertainties and lines of thought is not a trademark of today's culture. More time should equal more thought. But humanity seems to be s
For more than 30 years bright orange "Garfield" phones have been washing up on the French coast to the bemusement of local beach cleaners, who have finally cracked the mystery behind them.
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. The week at Retraction Watch featured a $112.5 million settlement at Duke following allegations of misconduct; … Continue reading Weekend reads: Autism-"male brai
A new study maps out the increase and spread of the Asian longhorned tick, a new species identified last summer in Westchester and Staten island. What's particularly alarming is that the tick is notorious for its ability to quickly clone itself through asexual reproduction, or reproduce sexually, laying 1,000-2,000 eggs at a time.
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Dylan McWilliams, a survivor of rattlesnake, shark and bear attacks teams with Brooke, an elite hunter and wife of N&A veteran Matt Wright. Stream Full Episodes of Naked and Afraid: https://www.discovery.com/tv-shows/naked-and-afraid/ Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Join us on Facebook: https://www.facebook.com/NakedandAfraid https://www.facebook.com/Discovery Follow us o
GENE EDITING Genome Engineers Made More Than 13,000 Genome Edits in a Single Cell Antonio Regalado | MIT Technology Review "The group, led by gene technologist George Church, wants to rewrite genomes at a far larger scale than has currently been possible, something it says could ultimately lead to the 'radical redesign' of species—even humans." ROBOTICS Inside Google's Rebooted Robotics Program C
Bestselling author and fitness guru Brad Kearns joins Get-Fit Guy, Brock Armstrong, to explain how we can stay fit now, and well into the future — Read more on ScientificAmerican.com
DIY The guide to a more soothing visual experience on Android, iPhone, Windows, Youtube, Reddit, Slack, and more. Black text on a white background isn't just boring, it's blinding. When you're using your phone or computer at night, the last thing you need is a bright screen torching…
http://www.spiegel.de/international/interview-with-anthropologist-richard-wrangham-a-1259252.html A very interesting observation of how humans (may have) evolved into less aggressive people (compared to say the chimpanzees), with similar traits as pets, and how this process is still going on. According to Wrangham, we bred out aggression by killing the alpha males. submitted by /u/Starfox5 [link]
The spandex-based controversy has been broiling in the west for years; and it's not just men policing women's bodies, women are doing it to themselves Sign up for the Week in Patriarchy , a newsletter on feminism and sexism sent every Saturday. Continue reading…
The lifelong gratitude of a chimp de Waal taught to bottle-feed and adopt an orphan Trump's alpha male display during the 2016 debates How B.F. Skinner screwed up behavioral science for half a century None When I was a kid, there used to be a TV commercial for this series of animal videos you could order that were basically nothing but killing and sex. The tagline was "Find out why we call them .
We test-drove more than a dozen rain jackets to get you outside this spring. These heavy and lightweight waterproof jackets kept us cool and dry in the city and on the trails.
Et firedobbelt motorstop under en storm gav sidste weekend store vanskeligheder for krydstogtskibet Viking Sky ud for Norge. Det lykkedes at genstarte tre motorer, og efter evakuering af næsten 500 passagerer kom skibet søndag i havn for egen kraft. Mange læsere på ing.dk havde teorier om, hvad d…
PARIS—There's a scene at the beginning of Faces Places , Agnès Varda and JR's unassuming 2017 documentary of their road trip around France, when the film director and photographer meet a woman who refuses to move out of her home in public housing once built for families of coal miners, even though the local authorities want to move her elsewhere. Varda, a pioneer of the French New Wave who died o
You're more likely to win the Powerball jackpot than fill out the perfect bracket. So statisticians are using AI to improve these dismal odds as much as possible.
The Sydney Opera House and the Harbour Bridge were plunged into darkness for an hour Saturday to raise awareness about climate change and its impact on the planet's vanishing biodiversity.
The Laser Interferometer Gravitational-Wave Observatory is about to switch on after a big upgrade and it should tell us all about black holes and much more
The bank is a huge backer of the fossil fuel industry and attendant climate catastrophe. Direct action is vital From Cyclone Idai , which has killed hundreds in south-east Africa, to flooding in Bangladesh – where my family is from – for decades climate change has been devastating communities in the global south. More recently these effects have begun to be felt by people in the UK too: just last
Amirhossein Khaleghi thought he knew danger. For much of the past 12 years, he had tracked Persian leopards and Asiatic cheetahs across the rugged splendor of Iran's national parks. He would spend months at a time out in the bush, negotiating with sometimes hostile locals (such is his innate affability that he even persuaded notorious poachers to curtail their activities). He would spend months m
When I was a tot, my mother made me read Alex Haley's Roots all the way through. Even though my linguist days were far ahead of me, I was struck by one sentence: At the end of the Revolutionary War, a slave exclaims, "Freedom am won!" That seemed an off rendition of black speech to me then, and I assumed that Haley had innocently concocted that am usage. Yet Haley was hardly alone in putting into
Recently, the U.S. Treasury said that it is perfectly okay for companies to swindle employees out of their pension by offering one-time payments worth less than the pension that those employees are giving up. The Department of Labor, nominally responsible for protecting workers in retirement plans, said nothing. This isn't the first time the government stood by as American businesses shifted risk
Breaking up the world's tech titans is not the best way to counter their power, EU Competition Commissioner Margrethe Vestager said Friday, while leaving room for that eventuality as a "last resort."
Facebook on Friday said it is tightening live video streaming rules in response to the service being used to broadcast deadly attacks on mosques in New Zealand.
Six baby elephants separated from their parents and trapped in a muddy pit for days have been rescued by park rangers in rural Thailand, officials said Saturday.
Alaska residents accustomed to subzero temperatures are experiencing a heat wave of sorts that is shattering records, with the thermometer jumping to more than 30 degrees Fahrenheit (16.7 Celsius) above normal in some regions.
Australia pledged Saturday to introduce new laws that could see social media executives jailed and tech giants fined billions for failing to remove extremist material from their platforms.
Six baby elephants separated from their parents and trapped in a muddy pit for days have been rescued by park rangers in rural Thailand, officials said Saturday.
Boeing is facing mounting pressure to roll out a software update on its best-selling plane in time for airlines to use the jets during the peak summer travel season.
Hundreds of giant viruses that infect bacteria have been discovered. Some seem to deploy CRISPR – the system used for gene editing – to fight their hosts
Hi I really would like to know what the eroi is of solar panels and say a Tesla powerwall when manufacturing, transportation and recycling are taken into account. Previous studies I've seen did not seem to take these into account. Can anyone point me towards some good research on this? If we are to switch to a distributed solar + battery storage energy grid, I think it's very important that we ge
Nowadays, Venus is sweltering with no liquid water on its surface. But billions of years ago it may have had an ocean and a relatively pleasant climate
A selection of new climate related research articles is shown below. This post has separate sections for: Climate Change, Climate Change Impacts, Climate Change Mitigation, and Other Papers. Climate change mitigation Climate change communication The growth of climate change misinformation in US philanthropy: evidence from natural language processing (open access) Just don't call it climate change
Det går hurtigt at lave en espresso, og eftersom det tager tid at trække koffein ud, betyder det så, at der næsten ikke er noget koffein i espresso. Det svarer Copenhagen Coffee Lab på.
Trips to the toilet at night are a sign of high blood pressure, according to results from the Watari study presented today at the 83rd Annual Scientific Meeting of the Japanese Circulation Society (JCS 2019).
Med sin nya bok tar historikern David Christian sig an hela universums förflutna. Han menar att bara genom att se helheten kan vi förstå världen idag och vad som väntar mänskligheten i framtiden.
Effective cancer therapies often demand delivery of combinations of drugs to inhibit multidrug resistance through synergism, and the development of multifunctional nanovehicles with enhanced drug loading and delivery efficiency for combination therapy is currently a major challenge in nanotechnology. However, such combinations are more challenging to administer than single drugs…
Almost all organisms, from insects to mammals, have coevolved with microorganisms, establishing symbiotic interactions. Whereas most such interactions are based on nutrition (1), there are other examples, among which one of the most well studied is symbioses involving light-emitting bacteria. The bobtailed squid, Euprymna scolopes, forms a symbiosis with the…
Neural stem cells continuously generate newborn neurons that integrate into and modify neural circuitry in the adult hippocampus. The molecular mechanisms that regulate or perturb neural stem cell proliferation and differentiation, however, remain poorly understood. Here, we have found that mouse hippocampal radial glia-like (RGL) neural stem cells express the…
Whole-body metabolic homeostasis is tightly controlled by hormone-like factors with systemic or paracrine effects that are derived from nonendocrine organs, including adipose tissue (adipokines) and liver (hepatokines). Fibroblast growth factor 21 (FGF21) is a hormone-like protein, which is emerging as a major regulator of whole-body metabolism and has therapeutic potential…
Dysregulation of the alternative complement pathway (AP) predisposes individuals to a number of diseases including paroxysmal nocturnal hemoglobinuria, atypical hemolytic uremic syndrome, and C3 glomerulopathy. Moreover, glomerular Ig deposits can lead to complement-driven nephropathies. Here we describe the discovery of a highly potent, reversible, and selective small-molecule inhibitor of factor
Myotonic dystrophy type 1 (DM1) is an incurable neuromuscular disorder caused by an expanded CTG repeat that is transcribed into r(CUG)exp. The RNA repeat expansion sequesters regulatory proteins such as Muscleblind-like protein 1 (MBNL1), which causes pre-mRNA splicing defects. The disease-causing r(CUG)exp has been targeted by antisense oligonucleotides, CRISPR-based approaches,…
Phase separation of multivalent protein and RNA molecules underlies the biogenesis of biomolecular condensates such as membraneless organelles. In vivo, these condensates encompass hundreds of distinct types of molecules that typically organize into multilayered structures supporting the differential partitioning of molecules into distinct regions with distinct material properties. The interplay..
It is widely believed that end-to-end training with the backpropagation algorithm is essential for learning good feature detectors in early layers of artificial neural networks, so that these detectors are useful for the task performed by the higher layers of that neural network. At the same time, the traditional form…
The Pacific Walker Circulation (PWC) fluctuates on interannual and multidecadal timescales under the influence of internal variability and external forcings. Here, we provide observational evidence that the 11-y solar cycle (SC) affects the PWC on decadal timescales. We observe a robust reduction of east–west sea-level pressure gradients over the Indo-Pacific…
Infectious diseases of domesticated animals impact human well-being via food insecurity, loss of livelihoods, and human infections. While much research has focused on parasites that infect single host species, most parasites of domesticated mammals infect multiple species. The impact of multihost parasites varies across hosts; some rarely result in death,…
Monarch butterflies are an icon of nature: spectacular in form, known for their unfathomable annual migration, and frequent visitors in our backyards (Fig. 1). It is no wonder they are a darling among invertebrates. And what has now captured our attention is the striking and precipitous decline of monarch populations…
Invasive alien species are a great threat to biodiversity and human livelihoods worldwide. The most effective way to limit their impacts and costs is to prevent their introduction into new areas. Identifying invaders and invasions before their occurrence would arguably be the most efficient strategy. Here, we provide a profiling…
Protein homeostasis is tightly regulated, and multiple cellular mechanisms are in place to dispose of misfolded or no-longer-needed proteins. One of the key players is the ubiquitin (Ub)-proteasome system (UPS), in which a variety of specific ligases mark substrate proteins with a Ub "flag" to be recognized by the proteolytic…
Phytophthora are eukaryotic pathogens that cause enormous losses in agriculture and forestry. Each Phytophthora species encodes hundreds of effector proteins that collectively have essential roles in manipulating host cellular processes and facilitating disease development. Here we report the crystal structure of the effector Phytophthora suppressor of RNA silencing 2 (PSR2)….
Home smart devices have increasingly become multifunctional and serve consumers through screens, cameras, stereos, and virtual assistants. Google already offers a range of home devices, but …
Dickinson, Janis L. & Bonney, Rick. (eds). Citizen Science: Public Participation in Environmental Research. Cornell University Press, 2012. 279 pages. Paperback $US 29.95. Though it was published in 2012, Citizen Science: Public Participation in Environmental Research is relevant to our present moment. As discussions of environmental research increase in frequency and urgency, institutions at all
Researchers have linked disruption of a child's gastrointestinal microbiome triggered by early-life adversity — such as parental separation — with activity in the regions of the brain associated with emotional health.
Facebook on Friday said it is tightening live video streaming rules in response to the service being used to broadcast deadly attacks on mosques in New Zealand.
Gadgets The low-down on the day's best discounts. PopSci is always on the lookout for today's best deals. Our lists will be updated throughout the day, so check back to see if stumbled upon any awesome new discounts.
Using proteins derived from jellyfish, scientists assembled a complex sixteen protein structure composed of two stacked octamers by supercharging alone. This research could be applied to useful technologies such as pharmaceutical targeting, artificial energy harvesting, 'smart' sensing and building materials, and more. Computational modeling through XSEDE allocations on Stampede2 (TACC) and Comet
Offering financial aid to cover childcare costs for female academics attending conferences is one of the suggestions offered by researchers who surveyed Australian women on how caring for children has affected their careers. They also recommend institutions and funding bodies that use publication and citation benchmarks as a key criteria for appointment, promotion and the awarding of grants should
New research extends the growing biological understanding of how different parts of corn plants develop, which is important information for a crop that is a mainstay of the global food supply.
What We're Following Lyft became a public company on Friday with an eye-popping $24 billion valuation —yet the company lost nearly a billion dollars last year. So why are Wall Street bigwigs pouring money into the company? Alongside Uber, Lyft is one of two ride-sharing behemoths—and with about 40 percent of the market, it's quickly gaining on its archrival. The company is accumulating users, but
After a year of downtime to perform hardware upgrades, the Laser Interferometer Gravitational-Wave Observatory (LIGO) is ready for action and will turn on its twin detectors, one in Washington state and the other in Louisiana, on April 1. This time, it will also be joined by the Virgo collaboration based out of Italy, and possibly also by the KAGRA detector in Japan later in the year. Combined wit
The Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC) are two of the most stunning naked-eye sights you can spot in the southern sky. Over the past few billion years, these two satellite galaxies of the Milky Way have been locked in a complex dance that has led to numerous interactions between them. And each time they get close, their gravitational forces disrupt the gas clouds wit
The last and only time astronomers got a close look at Neptune's moon Triton was in 1989, when Voyager 2 sped by, taking images of just one side of the moon. But that brief encounter revealed plumes of material shooting out from a world so distant and cold that any activity was immediately fascinating. Scientists now think the moon has an underground ocean. This makes it a prime target for finding
Science A commute so quick you could just die. A neat trick known as quantum teleportation could be the secret to super-secure data transfers—but it won't get you to work.
What We're Following Today It's Friday, March 29. ‣ Linda McMahon, a former pro-wrestling executive and the current head of the Small Business Administration, will reportedly resign from her position to chair President Donald Trump's super PAC, America First Action. Here's what else we're watching: Will the Public Ever See the Mueller Report?: Attorney General William Barr said he plans to share
ISS Success It wasn't the spacewalk that was planned, but it was a success nonetheless. On Friday, NASA astronauts Nick Hague and Christina Koch left the relative safety of the International Space Station's (ISS) interior to embark on a nearly seven-hour-long spacewalk that wrapped up at 2:27 p.m. EDT. Substitute Spacewalker Astronaut Anne McClain was originally supposed to join Koch on this ISS
Are there any or has there ever been, a project idea to dispose of waste by firing toward the sun ? Are there any papers or articles about everything required to send it up, then figure out how to aim it toward our star? submitted by /u/stevec0000 [link] [comments]
Early Grave Participants in a canceled basic income trial aren't giving up the money without a fight. In April 2017, Ontario, Canada, announced plans to launch a basic income experiment. It was supposed to last for three years, but Ontario canceled it after just one — and now several of the project's participants have filed a class-action lawsuit against the province for the hardship that early c
Columbia University researchers are among the first to link disruption of a child's gastrointestinal microbiome triggered by early-life adversity — such as parental separation — with activity in the regions of the brain associated with emotional health.
Lyft had little trouble getting investors to hop on board its increasingly popular ride-hailing service, as its initial public offering fetched a $72 per-share price that exceeded even its own …
Technology This machine will challenge the way you think about chopper design. The Defiant sports a coaxial design and big pusher propeller in the back, for speed.
One important requirement to see quantum effects is to remove all thermal energy from the particle motion, i.e. to cool it as close as possible to absolute zero temperature. Researchers are now one step closer to reaching this goal by demonstrating a new method for cooling levitated nanoparticles.
Red blood cells are amazing. They pick up oxygen from our lungs and carry it all over our body to keep us alive. The hemoglobin molecule in red blood cells transports oxygen by changing its shape in an all-or-nothing fashion. Four copies of the same protein in hemoglobin open and close like flower petals, structurally coupled to respond to each other. Using supercomputers, scientists are just star
At a site called Tanis in North Dakota's Hell Creek Formation, a team of paleontologists whose headquarters are at the University of Kansas unearthed a motherlode of exquisitely preserved animal and fish fossils that were killed suddenly in events triggered by the Chicxulub impact.
The study showed successful weight-loss maintainers rely on physical activity to remain in energy balance (rather than chronic restriction of dietary intake) to avoid weight regain. Successful weight-loss maintainers are individuals who maintain a reduced body weight of 30 pounds or more for over a year. The study, published in the March issue of Obesity, was selected as the Editor's Choice articl
Academic experts in natural language processing who are interested in deception have compared the language used within written April Fools hoaxes and fake news stories. They have discovered that there are similarities in the written structure of humorous April Fools hoaxes — the spoof articles published by media outlets every April 1 — and malicious fake news stories.
Hyundai has found a new problem that can cause its car engines to fail or catch fire, issuing yet another recall to fix problems that have affected more than 6 million vehicles during the past 3,5 years.
Red blood cells are amazing. They pick up oxygen from our lungs and carry it all over our body to keep us alive. The hemoglobin molecule in red blood cells transports oxygen by changing its shape in an all-or-nothing fashion. Four copies of the same protein in hemoglobin open and close like flower petals, structurally coupled to respond to each other. Using supercomputers, scientists are just star
Fifteen months after the most infamous instance of swatting drew the worlds attention to the practice, Tyler Barriss the man who made the hoax call has been sentenced to 20 years in prison.
Deep Mars Researchers at the University of Southern California dropped a bold claim Thursday: based on a new analysis, Mars likely harbors a "deep groundwater" system that probably extends far beyond the planet's poles and bubbles to the surface through cracks in craters. "We have seen the same mechanisms in the North African Sahara and in the Arabian Peninsula, and it helped us explore the same
Pointing molecules in the right direction yields a better plastic Pointing molecules in the right direction yields a better plastic, Published online: 29 March 2019; doi:10.1038/d41586-019-01020-0 An extra ingredient reroutes reaction, creating a sturdy plastic instead of a sticky liquid.
A few weeks ago, a spending bill passed by Congress included $100 million earmarked for NASA to develop nuclear thermal rocket engines. In spite of the ever-present backlash to nuclear material, it's not uncommon when it comes to space exploration. The Curiosity rover is just one of many NASA missions powered by nuclear material, in this case, a multi-mission radioisotope thermoelectric generator
Using proteins derived from jellyfish, scientists assembled a complex sixteen protein structure composed of two stacked octamers by supercharging alone. This research could be applied to useful technologies such as pharmaceutical targeting, artificial energy harvesting, 'smart' sensing and building materials, and more. Computational modeling through XSEDE allocations on Stampede2 (TACC) and Comet
Contraceptives for men have been explored in some way since at least the 1950's, but there haven't been many viable options. A new sperm-reducing gel could change that.
Infecting Females with STDs Could Give Male Animals an Advantage Some male animals may evolve weak immune responses so they can give their mates diseases. mating-ladybugs_cropped.jpg Image credits: Christian Gloor via Flickr Creature Friday, March 29, 2019 – 15:00 Nala Rogers, Staff Writer (Inside Science) — In the battle of the sexes, sexually transmitted diseases may sometimes be a weapon that
Injuries Out A team of bioengineers has successfully 3D-printed tissues they believe doctors could one day implant into patients to help heal the knee, ankle, and elbow injuries that have ended the careers of countless athletes. "I think this will be a powerful tool to help people with common sports injuries," Rice University researcher Sean Bittner said in a press release — though the impact of
Health A tragic case report shows the horrifying result when tapeworms don't stay confined to your intestines. Tapeworms are revolting no matter where you find them, but at least in your gut they're where they belong. We are, unfortunately, their primary host and, as parasites,…
(Emma Gonzalez' sneaker, on the one year anniversary of the school shooting in Parkland Florida. Mike Segar / Reuters ) This Week in Family At the tail end of March, three people affected by school shootings died by suicide; two were survivors of the Parkland, Florida, massacre last year, and the third was the father of a student killed in 2012 at Sandy Hook Elementary School. It's not uncommon f
Helicopters are a common sight in the skies above Earth, but they may soon come to the red planet. The post NASA Tests Mars 2020 Helicopter Under Mars-Like Conditions appeared first on ExtremeTech .
A new study explains the cellular processes that allow a sun-loving microbe to "eat" electricity—transferring electrons to fix carbon dioxide to fuel its growth. Researchers showed how a naturally occurring strain of Rhodopseudomonas palustris takes up electrons from conductive substances like metal oxides or rust. The work appears in the journal Nature Communications . The study builds on a prev
Environment Even if it's not stony coral tissue loss disease, the reefs are in trouble. Recent reports suggest that stony coral tissue loss disease, which has ravaged Florida reefs over the last half-decade, has moved into the Caribbean.
A new study published in the April 2019 issue of the American Journal of Roentgenology (AJR) investigates the safety of uterine artery embolization (UAE) for symptomatic leiomyomas in patients with various autoimmune diseases.
An essential part of breast intervention is the process of assessing concordance between imaging findings and core biopsy results. When pathology results are considered benign discordant, current standard of care is surgical excision, even though many of these lesions will ultimately be found benign.
As increasing numbers of patients gain online access to their radiology reports, a new study published in the April 2019 issue of the American Journal of Roentgenology (AJR) assesses how thoroughly patients understand these complex documents.
A new study published in the April 2019 issue of the American Journal of Roentgenology (AJR) considers several potential factors that might have led to disparities in follow-up imaging rates among patients with indeterminate initial abdominal imaging findings.
A survey reveals the disease has decimated populations in Central and South America and tropical Australia and contributed to the extinction of 90 species.
Backchat: Calls for a research moratorium, and the evolution of science reporting. Backchat: Calls for a research moratorium, and the evolution of science reporting., Published online: 29 March 2019; doi:10.1038/d41586-019-01051-7 Benjamin Thompson hosts our regular roundtable discussion, with guests David Cyranoski, Alison Abbott and Heidi Ledford.
As the last shred of Islamic State territory in Syria fell to Kurdish-backed forces this month, thousands of people, including fighters, fled the enclave or surrendered. Yet when the exodus was over and the "caliphate" was extinguished, a mystery lingered: Where was the "caliph"? "We don't know where he is," James Jeffrey, the U.S. special envoy to the global coalition to defeat ISIS, told report
A volcanic eruption in Mexico, a drifting cruise ship off Norway's coast, a skyscraper fire in Bangladesh, "Mausoleum of the Giants" in England, the end of the ISIS "caliphate" in Syria, severe flooding in Mozambique, a festival along the Salton Sea, another crippling blackout in Venezuela, severe flooding in Nebraska, a slimy Chris Pratt in Los Angeles, a Trump rally in Michigan, and much more
Under just the right light , ice turns into a twisting labyrinth Under just the right light , ice turns into a twisting labyrinth, Published online: 29 March 2019; doi:10.1038/d41586-019-01005-z Ice absorbs near-infrared light more efficiently than does water, triggering the formation of intricate patterns.
Scientists argue that new plant breeding technologies can contribute significantly to food security and sustainable development. Genome editing techniques in particular, such as CRISPR/Cas, could help to make agriculture more productive and environmentally friendly. The researchers advocate the responsible use and support of these new technologies.
A sweeping new census estimates 52,800 western chimpanzees (Pan troglodytes verus) live in eight countries in western Africa, with most of them found outside of protected areas, some of which are threatened by intense development pressures.
In addition to humans, hereditary disorders of enamel development occur in dogs, greatly impacting their dental health and wellbeing. A recent study reveals canine enamel disorders similar to those found in humans, linking them with ENAM and ACP4, two genes previously described in humans.
This star-studded image shows us a portion of Messier 11, an open star cluster in the southern constellation of Scutum (the Shield). Messier 11 is also known as the Wild Duck Cluster, as its brightest stars form a 'V' shape that somewhat resembles a flock of ducks in flight.
BibleBot Seniors in search of some high-tech companionship may find comfort in a small robot that can listen to them and read relevant scripture. SanTO is a foot-and-a-half tall robot resembles the sort of altar or figurine a Catholic may use to decorate their home. But it's equipped with software it uses to listen to people, scan their faces for signs of specific emotions, and select religious t
An increasing number of US adults believe e-cigarettes are as or more harmful to health than cigarettes, research finds. The study, which appears in JAMA Network Open , finds the proportion of American adults who perceived e-cigarettes to be more harmful than cigarettes more than tripled from 2012 to 2017. During the same period, the percentage of US adults who perceived e-cigarettes to be equall
Researchers at the University of Illinois at Chicago have found that some preterm babies born without haptoglobin, a protein in blood cells, have higher odds of brain bleeding, cerebral palsy and death. Their findings suggest that the absence of the protein could serve as a potential biomarker indicating a need for increased monitoring or other preventive interventions.
You can now perform supercomputer simulations of the heart's electrophysiology in real time on desktop computers and even cellphones. A team of scientists from Rochester Institute of Technology and Georgia Tech developed a new approach that can not only help diagnose heart conditions and test new treatments, but pushes the boundaries of cardiac science by opening up a floodgate of new cardiac rese
March's Stellar Space Pictures Spring has sprung: Interstellar edition. 1crop_exoplanet2b.jpg An illustration of potential plants on an alien planet that orbits two suns. Image credits: Mark Garlick Space Friday, March 29, 2019 – 14:00 Abigail Malate, Staff Illustrator (Inside Science) — This March, we take a look at images of space that echo the signs of spring we're starting to see in the Nort
Technology This isn't just content—it's content plus. Look back at all the week's big news stories and check out the latest edition of the Techathlon podcast.
Cooper pairs with a finite center-of-mass momentum form a remarkable state in which the superconducting order parameter is modulated periodically in space. Although intense interest in such a "pair-density wave" (PDW) state has emerged due to recent discoveries in high T c superconductors, there is little theoretical understanding of the mechanism driving this exotic state. The challenge is that
The number of parameters describing a quantum state is well known to grow exponentially with the number of particles. This scaling limits our ability to characterize and simulate the evolution of arbitrary states to systems, with no more than a few qubits. However, from a computational learning theory perspective, it can be shown that quantum states can be approximately learned using a number of
Optical tractor beams, proposed in 2011 and experimentally demonstrated soon after, offer the ability to pull particles against light propagation. It has attracted much research and public interest. Yet, its limited microscopic-scale range severely restricts its applicability. The dilemma is that a long-range Bessel beam, the most accessible beam for optical traction, has a small half-cone angle,
Patterns are broad phenomena that relate to biology, chemistry, and physics. The dendritic growth of crystals is the most well-known ice pattern formation process. Tyndall figures are water-melting patterns that occur when ice absorbs light and becomes superheated. Here, we report a previously undescribed ice and water pattern formation process induced by near-infrared irradiation that heats one
The coexistence and coupling of ferroelasticity and magnetic ordering in a single material offers a great opportunity to realize novel devices with multiple tuning knobs. Complex oxides are a particularly promising class of materials to find multiferroic interactions due to their rich phase diagrams, and are sensitive to external perturbations. Still, there are very few examples of these systems.
Surface plasmon resonance microscopy (SPRM) with single-direction illumination is a powerful platform for biomedical imaging because of its wide-field, label-free, and high-surface-sensitivity imaging capabilities. However, two disadvantages prevent wider use of SPRM. The first is its poor spatial resolution that can be as large as several micrometers. The second is that SPRM requires use of meta
Contemporary models of intrafibrillar mineralization mechanisms are established using collagen fibrils as templates without considering the contribution from collagen-bound apatite nucleation inhibitors. However, collagen matrices destined for mineralization in vertebrates contain bound matrix proteins for intrafibrillar mineralization. Negatively charged, high–molecular weight polycarboxylic aci
The functionalization of unactivated C(sp 3 )H bonds represents one of the most powerful and most atom-economical tools for the formation of new carbon-based chemical bonds in synthesis. Although cross-dehydrogenative coupling reactions of two distinct CH bonds for the formation of carbon-carbon bonds have been well investigated, controlled functionalizations of two or more different C(sp 3 )H bo
A research team from the University of Delaware has developed cutting-edge technology for photonics devices that could enable faster communications between phones and computers.
Scientists have found the most efficient length for cilia, the tiny hair-like structures designed to sweep out the body's fluids, cells and microbes to stay healthy.
Polygenic scores developed by studying Europeans do a better job at predicting disease risk for people of European ancestry than for those of other ancestries.
Scientists have found the most efficient length for cilia, the tiny hair-like structures designed to sweep out the body's fluids, cells and microbes to stay healthy.
United Nations-backed talks to prevent an arms race in outer space ended without agreement on Friday, delivering another blow to global disarmament diplomacy.
Changing Seasons If you've found yourself suffering from seasonal allergies more often in recent years, climate change might be to blame. Recorded shifts in when the four seasons begin and end are just one example of how man-made climate change is affecting our planet. Now, a new study provides evidence that places in the United States where spring is starting earlier or later than normal are see
With the warm weather upon us and the once-frozen plants coming back to life, springtime feels like a long-awaited oasis for most people. But for some, the resurgence of trees and grass can trigger seasonal allergies, and turn springtime into a sneezy, snotty mess. Instead of just popping your allergy meds and hoping for the best, a group of researchers think they may have just enabled a new appro
Antibiotics save us from all kinds of unfortunate ailments, from strep throat to ear infections. But the bacteria that cause these and other ailments are gaining an edge. Antibiotic resistant bacteria are on the rise around the world and spreading in people as well as the environment, making it harder to treat infectious diseases. Antibiotic resistant bacteria grow in places that humans interact w
One of the iconic scenes from Good Will Hunting shows Matt Damon's character anonymously solving a nigh-impossible math problem on a blackboard at the university where he works as a janitor. This story, while modified for the purposes of the film, actually happened. George Dantzig, who would later become a famous mathematician, was late to his graduate statistics class one day when he saw two sta
The country's anti-satellite missile test should be condemned, writes Sa'id Mosteshar On Wednesday the space Mission Shakti was carried out by India, in which it successfully targeted a low Earth orbit (LEO) satellite ( Report , 28 March). Prime Minister Narendra Modi declared: "In the journey of every nation there are moments that bring pride and have a historic impact on generations to come. One
Archaeologists recently found a piece of pottery decorated with the funny face of an ancient deity who is often depicted as a bearded dwarf with a big face and bug eyes.
Five weeks ago, a 20-year-old named Arifa Sultana delivered a baby in a hospital in southwestern Bangladesh. As the BBC has reported , Sultana had received limited prenatal care in her rural village, but she had no problems during delivery and returned home with her husband and infant son. Less than a month later, on March 21, Sultana was rushed to another hospital with stomach pain and another b
This article contains minor plot details for the first three episodes of Veep , Season 7. It's no spoiler to say that the once and possibly future President Selina Meyer (played by Julia Louis-Dreyfus) finds herself in a colossally embarrassing situation early in the seventh season of Veep . Her life is generally a parade of mortification and mishaps, interrupted by moments of power-grabbing glor
After several failed attempts, New York state is poised to ban single-use plastic bags provided by stores, making it only the second US state, after California, to pass such a rule.
Teaching cows to use the toilet is not the easiest task, but a Dutch inventor is banking on a new bovine urinal to help cut emissions that cause environmental damage.
Archaeologists with the University of Cincinnati used the latest technology to find evidence suggesting ancient Maya people grew surplus crops to support an active trade with neighbors up and down the Yucatan Peninsula.
An interdisciplinary team of researchers from the McKelvey School of Engineering and the School of Medicine have found the most efficient length for cilia, the tiny hair-like structures designed to sweep out the body's fluids, cells and microbes to stay healthy.
A research team from the University of Delaware has developed cutting-edge technology for photonics devices that could enable faster communications between phones and computers.
Researchers found high concentrations of mercury, arsenic, and lead, in blood samples obtained from Great white sharks in South Africa. The samples had levels that would be considered toxic to many animals. However, the study found no apparent negative consequences of these heavy metals on several health parameters measured in the sharks, including body condition, total leukocytes, and granulocyte
Researchers found high concentrations of mercury, arsenic, and lead, in blood samples obtained from Great white sharks in South Africa. The samples had levels that would be considered toxic to many animals. However, the study found no apparent negative consequences of these heavy metals on several health parameters measured in the sharks, including body condition, total leukocytes, and granulocyte
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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.
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