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nyheder2020januar02

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Ultimate Telemedicine: Expert helps treat astronaut's blood clot during NASA mission

An astronaut aboard the ISS had a deep vein thrombosis (DVT) — or blood clot — in the jugular vein of the neck and had it treated while on the mission.

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Research gaps in environmental science disciplines across the Arctic

More sampling is needed particularly in the Canadian Arctic Archipelago, northern Greenland, northern Taimyr, and central and eastern Siberia.

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The Marvel Cinematic Universe May Have a Trans Character 'Very Soon'

The studio's head honcho, Kevin Feige, reportedly said one of the films he's working on will feature a trans character. But he may have been misunderstood.

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An exhaustive guide to simpler traveling with small children

It's hard to travel with a child, much less make the trek to Machu Picchu like the author and her family. (Mary Kearl/) I spent the first half of 2019 traveling with my husband and our one-year-old throughout South America, where we managed to visit some remote places, such as the Galapagos Islands in Ecuador, the Amazon rainforest in Brazil, the floating islands of the Uros people in Peru, and U

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A close look at thin ice

Marrying theoretical work with experiments and high-tech imaging techniques, atmospheric chemists have identified a new way that ice grows in two dimensions.

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Climate signals detected in global weather

Searched for and found: climate researchers can now detect the fingerprint of global warming in daily weather observations at the global scale. They are thus amending a long-established paradigm: weather is not climate — but climate change can now be detected in daily weather.

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A new breakthrough in developing effective antimalarial drugs

Parasites in the genus Plasmodium, which cause malaria, are transmitted to humans through bites from infected mosquitoes. The parasites manage to acclimatize to these two completely different hosts because the plasticity of their genome enables them to adapt as necessary. Scientists decided to investigate the epigenetic mechanisms behind this plasticity, in particular DNA methylation. They identif

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Researchers identify starting point for designing drugs that cure Clostridium difficile

A newly published paper in PNAS details a research breakthrough that provides a promising starting point for scientists to create drugs that can cure C. diff — a virulent health care-associated infection that causes severe diarrhea, nausea, internal bleeding, and potentially death.

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New radiotracer offers opportunities for earlier intervention after heart attack

A new radiotracer can effectively image fibroblast activation after a heart attack, identifying a window of time during which cardiac fibrosis can be prevented and the disease course altered. The study is featured in the The Journal of Nuclear Medicine.

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Mediterranean diet may help preserve the kidney health of transplant recipients

In a study of kidney transplant recipients, those with higher adherence to the Mediterranean diet were less likely to experience kidney function loss.

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New Light Sail Design Could Help Keep Interstellar Spacecraft on Track

Researchers tested new light sail tech in the lab and say their design could better steer the tiny, laser-powered interstellar spacecraft.

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A close look at thin ice

Marrying theoretical work with experiments and high-tech imaging techniques, atmospheric chemists have identified a new way that ice grows in two dimensions.

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These Sea Creatures See Without Eyes — But Only Sometimes

Brittle sea stars use light-sensitive cells spread across their bodies to navigate.

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Why caffeine may limit weight gain

After observing the effect in rats, scientists propose that consuming caffeine can limit weight gain and other adverse effects of a pro-obesity diet.

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Plants can improve your work life

In modern society, stress reduction in the workplace is a pressing issue. While it has been commonly assumed that plant life is soothing to those required to regularly face stressful or mundane situations, this study scientifically verifies the degree of psychological and physiological impact induced by indoor plants.

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Supercharged immune cells shrink tumours with RNA vaccine's help

Nature, Published online: 02 January 2020; doi:10.1038/d41586-019-03965-8 Vaccine drives growth of T cells engineered to attack cancer cells, according to experiments in mice.

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Stanford researchers build a particle accelerator that fits on a chip

submitted by /u/lughnasadh [link] [comments]

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Google AI Is Better At Identifying Breast Cancer Than Human Doctors

Neural networks have helped machines learn some skills previously limited to humans like recognizing objects in a photo or absolutely demolishing you when you fire up StarCraft II . Google is one of the leading developers of neural network AI, and it has developed a new system that uses the power of AI to identify breast cancer in mammograms that doctors might miss . Currently, mammograms are the

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Teeth whiteners for a brighter smile

Say cheese! (Lesly Juarez via Unsplash/) Getting whiter teeth without an expensive procedure at the dentist's office is more accessible than ever. Here are some of our top picks to look picture perfect. Classic whitening strips from Crest. (Amazon/) Crest Whitestripes are heavy-duty enough to work on stains from heavy smoking, coffee drinking, and wine tasting. Wrap these coated film strips aroun

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New Light Sail Design Would Use Laser Beam to Ride Into Space

New design is able to stabilize itself. laser-sail.jpg Image credits: M. Martin/Rochester Inst. of Tech. Technology Thursday, January 2, 2020 – 15:45 Yuen Yiu, Staff Writer (Inside Science) — In long distance space travel, traditional rockets would eventually run out of fuel. There is an alternative: Since as early as the 19 th century, scientists have dreamed of building spacecraft with light

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More states grow hops as craft beer popularity booms

The surge in craft breweries may be fueling an unprecedented geographic expansion of hops production across the US, a new study shows. The findings suggest that as more craft breweries emerge around the country, so may new opportunities for farmers. Hops are a key ingredient in beer production, providing aroma and bittering characteristics. Before 2007, hop production in the US was limited to onl

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ORNL researchers advance performance benchmark for quantum computers

Researchers at the Department of Energy's Oak Ridge National Laboratory (ORNL) have developed a quantum chemistry simulation benchmark to evaluate the performance of quantum devices and guide the development of applications for future quantum computers.

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First reported occurrence and treatment of spaceflight medical risk 200+ miles above Earth

Serena Auñón-Chancellor, M.D., M.P.H., Clinical Associate Professor of Medicine at LSU Health New Orleans School of Medicine's branch campus in Baton Rouge, is the lead author of a paper describing a previously unrecognized risk of spaceflight discovered during a study of astronauts involved in long-duration missions. The paper details a case of stagnant blood flow resulting in a clot in the inter

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Astrophysicist Says He Knows How to Build a Time Machine

Astrophysicist Ron Mallett believes he's found a way to travel back in time — theoretically. The tenured University of Connecticut physics professor recently told CNN that he's written a scientific equation that could serve as the foundation for an actual time machine. He's even built a prototype device to illustrate a key component of his theory — though Mallett's peers remain unconvinced that h

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A Knotty Problem Solved

We know that some knots hold better than others, but the why of it hasn't been so clear. Special fibers that change color under strain are providing some answers. (Image credit: Joseph Sandt)

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Effort To Control Opioids In An ER Leaves Some Sickle Cell Patients In Pain

People with sickle cell disease aren't fueling the opioid crisis, research shows. Yet some ER doctors still treat patients seeking relief for agonizing sickle cell crises as potential addicts. (Image credit: Johnathon Kelso)

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Nobel winner retracts paper from Science

A Caltech researcher who shared the 2018 Nobel Prize in Chemistry has retracted a 2019 paper after being unable to replicate the results. Frances Arnold, who won half of the 2018 prize for her work on the evolution of enzymes, tweeted the news earlier today: The paper has been cited once, according to Clarivate Analytics' … Continue reading

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Myth-busting ads cut high-risk college student drinking

A university-wide social norms marketing campaign reduced high-risk drinking and adverse outcomes of drinking among college students at Michigan State University, according to a new study. Researchers created the social norms campaign to educate students about actual drinking behavior on campus. When misperceptions are corrected, behavior will change to be more consistent with the actual norm, sa

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Math test score gap between white and non-white students in Brazil due to complex factors

School test scores often show gaps in performance between white and non-white students. Understanding the complex reasons behind this can help reduce those gaps and promote social equality, explains Mary Paula Arends-Kuenning, associate professor of agricultural and consumer economics at the University of Illinois.

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Alzheimer 'tau' protein far surpasses amyloid in predicting toll on brain tissue

The results support researchers' growing recognition that tau drives brain degeneration in Alzheimer's disease more directly than amyloid protein, and at the same time demonstrates the potential of recently developed tau-based PET (positron emission tomography) brain imaging technology to accelerate Alzheimer's clinical trials and improve individualized patient care.

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To challenge the status quo, find a "co-conspirator" | Ipsita Dasgupta

In a complex and changing world, how can we make sure unconventional people and their ideas thrive? Business executive Ipsita Dasgupta introduces the concept of "co-conspirators" — people willing to bend or break the rules to challenge the status quo — and shows how they can help create new ways of thinking, acting and being.

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Exercise Has Many Health Benefits. Weight Loss Isn't Really One of Them

It's harder than you might think to lose weight through exercise alone.

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FDA Bans All Vape Pod Flavors Except Tobacco and Menthol

The U.S. Food and Drug Administration announced on Thursday that it is banning all fruit and mint-flavored nicotine vaping pods in order to reign in use by teenagers, CNBC reports . Tobacco and menthol-flavored pods will still be available. The FDA has been under pressure to tackle the epidemic of teens getting hooked on nicotine-containing products. The news comes after the FDA officially raised

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Team solves mystery of how 2D ice grows

The first-ever visualization of the atomic structure of two-dimensional ice as it forms may one day inform the design of materials that make ice removal a simpler and less costly process, researchers say. On frigid days, water vapor in the air can transform directly into solid ice, depositing a thin layer on surfaces such as a windowpane or car windshield. Though commonplace, these process have k

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eDNA expands species surveys to capture a more complete picture

Tiny bits of DNA collected from waters off the West Coast allowed scientists to identify more species of marine vertebrates than traditional surveys with trawl nets. They also reflect environmental shifts such as unusual ocean temperatures that affect the organisms present, new research shows.

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How fish fins evolved just before the transition to land

Research on fossilized fish details the evolution of fins as they began to transition into limbs fit for walking on land.

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Innovation is widespread in rural areas, not just cities

Conventional measures of innovation suggest that only big cities foster new ideas, but a more comprehensive measure developed at Penn State shows that innovation is widespread even in rural places not typically thought of as innovative.

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HIV patients lose smallpox immunity despite childhood vaccine, AIDS drugs

HIV patients lose immunity to smallpox even though they were vaccinated against the disease as children and have had much of their immune system restored with antiretroviral therapy, according to a study published in the Journal of Infectious Diseases. Called HIV-associated immune amnesia, the finding could explain why people living with HIV still tend to have shorter lives on average than their H

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Study finds dopamine, biological clock link to snacking, overeating and obesity

A new study finds that the pleasure center of the brain and the brain's biological clock are linked, and that high-calorie foods — which bring pleasure — disrupt normal feeding schedules, resulting in overconsumption.

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This pitch-black exoplanet is spiraling toward its doom

WASP-12b is hot, black, and spiraling toward a violent end. Somewhere in the constellation Auriga, a world is ending. Fortunately, WASP-12b is an inhospitable planet , so all casualties will be limited to gaseous explosions of apocalyptic proportion. Despite possessing twice the waistline of Jupiter and half again its heft, this giant exoplanet lives so close to its star that it whizzes around on

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TSMC Will Kick Off 5nm iPhone SoC Production in Q2 2020

Credit: Micron A Chinese-language Commercial Times report claims that TSMC will begin volume production for Apple's (presumed) A14 SoC in Q2 2020, using its 5nm, EUV-enabled process. This is a major step forward for semiconductor manufacturing as a whole. While EUV technically debuted at TSMC and Samsung on 7nm, it's only being used in a limited way for this node. 5nm is expected to see it introd

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Happy New Year From the President of the United States

Perhaps you, like me, are slowly returning to following the news closely after a break from your standard media diet over the holidays. That meant, among other things, mostly tuning out the president's social-media feed. Perhaps you heard about the lowlights, such as when Donald Trump retweeted a message naming the presumptive whistle-blower in the Ukraine case. You weren't looking at the feed re

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Some learning is a whole-brain affair

Researchers have successfully used a laser-assisted imaging tool to 'see' what happens in brain cells of mice learning to reach out and grab a pellet of food. Their experiments, they say, add to evidence that such motor-based learning can occur in multiple areas of the brain, even ones not typically associated with motor control.

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The Time of Giants

Envisioning the Jurassic world requires a lot of fossil detective work — Read more on ScientificAmerican.com

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Tests measure solar panel performance beyond established standards

In testing solar panels, the sun's intensity, the spectral composition and the angle of light are important factors in understanding why certain panels are successful and others degrade more quickly. To address the knowledge gap in degradation mechanisms for various photovoltaic types, researchers performed tests over five years in which they collected weather data and panel performance informatio

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Writing a 'national anthem' for Mars

A former software analyst and rising opera star has penned a song for the Red Planet.

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Mind Control for the Masses—No Implant Needed

submitted by /u/ngt_ [link] [comments]

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Extra benefit from epilepsy neurostimulators — reducing comorbid neuropsychiatric symptoms

Researchers report cases of five epilepsy patients who found better treatments for deleterious neuropsychiatric symptoms like anxiety, depression, psychosis and impaired memory using data collected — while the patients were at home — from implanted neurostimulators placed in their brains to control their epileptic seizures. This is an extra benefit from the implanted Responsive Neurostimulator S

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Bystander CPR less likely for people living in Hispanic neighborhoods

People living in predominately Hispanic neighborhoods are less likely to receive CPR from a bystander following an out-of-hospital cardiac arrest compared to people living in non-Hispanic neighborhoods, researchers from Penn Medicine and the Duke University of School of Medicine reported in the journal Circulation. This same group also had a lower likelihood of survival.

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The latest and greatest accessories for your Nintendo Switch

Level-up. (Enrique Vidal Flores via Unsplash/) Sure, binge-watching the latest TV hit can be great. But gaming can allow you to climb inside the story, direct the plot, and experience all the consequences—good and bad—of your choices. Who wouldn't want to carry on life in a parallel universe wherever they are? With Nintendo Switch and some smart accessories, go about your day without losing the t

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EPA science advisers slammed the agency for ignoring science. Here is what they said

Science Advisory Board issues stinging rebukes to regulatory moves

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NASA Proposed Sending Japanese Astronauts to the Moon

Japan on the Moon NASA administrator Jim Bridenstine secretly proposed using US rockets to send Japanese astronauts to the Moon, Japanese newspaper The Mainichi reports , citing "multiple sources" familiar with the talks. According to the paper, Bridenstine made the proposal during an unofficial September 2019 visit in which he met with space industry leaders, including the head of the Japanese g

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How the Extreme Art of Dropping Stuff Could Upend Physics

Scientists are going to great lengths to try to make gravity fail, so as to link Einstein's theory of general relativity with quantum mechanics.

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Why is it so hard to go back to work after vacation?

The blues ain't nothing but a good vacation coming to an end. (Christina @ wocintechchat.com/Unsplash/) The holidays are officially over, and many of us are recovering from traveling long distances to reconnect with loved ones and take in some well-earned R&R. And while the vacation time could mean different things to people—catching up on competitive sports, consuming inordinate amounts of food

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With Partial Flavor Ban, Trump Splits the Difference on Vaping

An initiative to reduce the use of e-cigarettes by teenagers led to compromise. Sales of most flavored pods popular with youth will be forbidden, but flavored liquid nicotine for open tank devices will be exempt.

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Engrams emerging as the basic unit of memory

A review in Science traces neuroscientists' progress in studying the neural substrate for storing memories and raises key future questions for the field.

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A quantum breakthrough brings a technique from astronomy to the nano-scale

Columbia and University of California San Diego researchers have brought a technique borrowed from astrophysics to the ultra-small scale, allowing for the first time an optical nano-probe to be combined with simultaneous magnetic nano-imaging of quantum materials.

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Daily weather shows climate change's 'fingerprints'

Climate researchers can now detect the fingerprint of global warming in daily weather observations at the global scale. In October this year, weather researchers in Utah measured the lowest temperature ever recorded in the month of October in the US (excluding Alaska): -37.1°C (-34.78°F). The previous low-temperature record for October was -35°C (-31°F), and people wondered what had happened to c

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Meditation cushions to make your practice more comfortable

Focus on your breathing, not your achy knees. (Lina Trochez via Unsplash/) Even the most unobservant can't fail to have noticed that mindfulness is everywhere, from gym classes to apps and corporate wellness programs. We're still learning about all of the ways in which mindfulness-based meditation can affect our physical and mental health. But our aching backs, knees, and sore butts tell us that

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Earliest roasted root vegetables found in 170,000-year-old cave dirt

Charred fragments found in a cave in southern Africa suggest that the real "paleo diet" included lots of roasted root vegetables that were rich in carbohydrates

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A Japanese Cafe Is Hosting Playdates, Parties for Robot Dogs

Strange Subculture Every Sunday, Tokyo's Penguin Café opens an hour early to host an unusual group of visitors: robot dogs and their owners. A new BuzzFeed News story dives deep into both the event and the people who've fallen in love with robodogs — and foreshadows a future in which more animal lovers might opt for mechanical pets over mortal ones. Pet Project The weekly event — named "Aibo Worl

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Iconoclastic Alzheimer's Researcher Robert Moir Dies

The 58-year-old was best known for uncovering evidence of a link between pathogens and the neurodegenerative disease.

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Border walls are terrible for global trade

Border walls have real economic effects, some of which may be unintended, researchers report. Three decades ago, the world was home to fewer than a dozen border walls. Now, their numbers have swelled to more than 50. In a supposed era of openness and collaboration, why are these structures not only persisting, but also proliferating? "Border walls are a symbol of the backlash against economic int

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The best baking essentials for your kitchen

Pastry paraphernalia. (Taylor Grote vis Unsplash/) If you're making dinner, throwing together a little of this and a little of that can often get you delicious results. Not so with baking, where ingredients must be carefully measured and substitutions are fraught with peril . Baking involves a lot of chemistry—say, where acidic buttermilk reacts with baking soda to make your cake rise, for exampl

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Clarity in 2020

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News at a glance

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Fighting words

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Asimov at 100

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Manipulating the gap

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Beating the freeze

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Checkpoint cross-talk

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Oriented attachment induces fivefold twins by forming and decomposing high-energy grain boundaries

Natural and synthetic nanoparticles composed of fivefold twinned crystal domains have distinct properties. The formation mechanism of these fivefold twinned nanoparticles is poorly understood. We used in situ high-resolution transmission electron microscopy combined with molecular dynamics simulations to demonstrate that fivefold twinning occurs through repeated oriented attachment of ~3-nanomete

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Massively multiplex chemical transcriptomics at single-cell resolution

High-throughput chemical screens typically use coarse assays such as cell survival, limiting what can be learned about mechanisms of action, off-target effects, and heterogeneous responses. Here, we introduce "sci-Plex," which uses "nuclear hashing" to quantify global transcriptional responses to thousands of independent perturbations at single-cell resolution. As a proof of concept, we applied s

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A Kelch13-defined endocytosis pathway mediates artemisinin resistance in malaria parasites

Artemisinin and its derivatives (ARTs) are the frontline drugs against malaria, but resistance is jeopardizing their effectiveness. ART resistance is mediated by mutations in the parasite's Kelch13 protein, but Kelch13 function and its role in resistance remain unclear. In this study, we identified proteins located at a Kelch13-defined compartment. Inactivation of eight of these proteins, includi

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A single photonic cavity with two independent physical synthetic dimensions

The concept of synthetic dimensions has generated interest in many branches of science, ranging from ultracold atomic physics to photonics, as it provides a versatile platform for realizing effective gauge potentials and topological physics. Previous experiments have augmented the real-space dimensionality by one additional physical synthetic dimension. In this study, we endow a single ring reson

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Absence of evidence for chiral Majorana modes in quantum anomalous Hall-superconductor devices

A quantum anomalous Hall (QAH) insulator coupled to an s-wave superconductor is predicted to harbor chiral Majorana modes. A recent experiment interprets the half-quantized two-terminal conductance plateau as evidence for these modes in a millimeter-size QAH-niobium hybrid device. However, non-Majorana mechanisms can also generate similar signatures, especially in disordered samples. Here, we stu

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Atomic manipulation of the gap in Bi2Sr2CaCu2O8+x

Single-atom manipulation within doped correlated electron systems could help disentangle the influence of dopants, structural defects, and crystallographic characteristics on local electronic states. Unfortunately, the high diffusion barrier in these materials prevents conventional manipulation techniques. Here, we demonstrate the possibility to reversibly manipulate select sites in the optimally

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Topological mechanics of knots and tangles

Knots play a fundamental role in the dynamics of biological and physical systems, from DNA to turbulent plasmas, as well as in climbing, weaving, sailing, and surgery. Despite having been studied for centuries, the subtle interplay between topology and mechanics in elastic knots remains poorly understood. Here, we combined optomechanical experiments with theory and simulations to analyze knotted

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Electrostatic control of photoisomerization pathways in proteins

Rotation around a specific bond after photoexcitation is central to vision and emerging opportunities in optogenetics, super-resolution microscopy, and photoactive molecular devices. Competing roles for steric and electrostatic effects that govern bond-specific photoisomerization have been widely discussed, the latter originating from chromophore charge transfer upon excitation. We systematically

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On-chip integrated laser-driven particle accelerator

Particle accelerators represent an indispensable tool in science and industry. However, the size and cost of conventional radio-frequency accelerators limit the utility and reach of this technology. Dielectric laser accelerators (DLAs) provide a compact and cost-effective solution to this problem by driving accelerator nanostructures with visible or near-infrared pulsed lasers, resulting in a 10

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Dendritic action potentials and computation in human layer 2/3 cortical neurons

The active electrical properties of dendrites shape neuronal input and output and are fundamental to brain function. However, our knowledge of active dendrites has been almost entirely acquired from studies of rodents. In this work, we investigated the dendrites of layer 2 and 3 (L2/3) pyramidal neurons of the human cerebral cortex ex vivo. In these neurons, we discovered a class of calcium-media

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Cooked starchy rhizomes in Africa 170 thousand years ago

Plant carbohydrates were undoubtedly consumed in antiquity, yet starchy geophytes were seldom preserved archaeologically. We report evidence for geophyte exploitation by early humans from at least 170,000 years ago. Charred rhizomes from Border Cave, South Africa, were identified to the genus Hypoxis L. by comparing the morphology and anatomy of ancient and modern rhizomes. Hypoxis angustifolia L

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Evolution of carnivorous traps from planar leaves through simple shifts in gene expression

Leaves vary from planar sheets and needle-like structures to elaborate cup-shaped traps. Here, we show that in the carnivorous plant Utricularia gibba , the upper leaf (adaxial) domain is restricted to a small region of the primordium that gives rise to the trap's inner layer. This restriction is necessary for trap formation, because ectopic adaxial activity at early stages gives radialized leave

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Protein-coding changes preceded cis-regulatory gains in a newly evolved transcription circuit

Changes in both the coding sequence of transcriptional regulators and in the cis-regulatory sequences recognized by these regulators have been implicated in the evolution of transcriptional circuits. However, little is known about how they evolved in concert. We describe an evolutionary pathway in fungi where a new transcriptional circuit (a-specific gene repression by the homeodomain protein Mat

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TTC5 mediates autoregulation of tubulin via mRNA degradation

Tubulins play crucial roles in cell division, intracellular traffic, and cell shape. Tubulin concentration is autoregulated by feedback control of messenger RNA (mRNA) degradation via an unknown mechanism. We identified tetratricopeptide protein 5 (TTC5) as a tubulin-specific ribosome-associating factor that triggers cotranslational degradation of tubulin mRNAs in response to excess soluble tubul

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Evidence for dispersing 1D Majorana channels in an iron-based superconductor

The possible realization of Majorana fermions as quasiparticle excitations in condensed-matter physics has created much excitement. Most studies have focused on Majorana bound states; however, propagating Majorana states with linear dispersion have also been predicted. Here, we report scanning tunneling spectroscopic measurements of crystalline domain walls (DWs) in FeSe 0.45 Te 0.55 . We located

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New Products

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Strange dreams

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Memory engrams: Recalling the past and imagining the future

In 1904, Richard Semon introduced the term "engram" to describe the neural substrate for storing memories. An experience, Semon proposed, activates a subset of cells that undergo off-line, persistent chemical and/or physical changes to become an engram. Subsequent reactivation of this engram induces memory retrieval. Although Semon's contributions were largely ignored in his lifetime, new technol

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Craft-beer boom linked to record-number of US states growing hops

Craft breweries aren't just a fun place to meet up with friends. They may be fueling an unprecedented geographic expansion of hop production across the US, according to researchers at Penn State and The University of Toledo.

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Snake-like proteins can wrangle DNA

Theoretical simulations at Rice University suggest structural maintenance of chromosome proteins coil not only around each other but also around the strands of DNA they help manipulate. These strands are formed into loops that regulate transcription and other cellular processes.

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Study confirms climate change impacted Hurricane Florence's precipitation and size

A new modeling framework showed that Hurricane Florence produced more extreme rainfall and was spatially larger due to human-induced climate change.

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Early modern humans cooked starchy food in South Africa, 170,000 years ago

The inhabitants of the Border Cave in the Lebombo Mountains on the Kwazulu-Natal/eSwatini border were cooking starchy plants 170,000 years ago. This discovery is much older than earlier reports for cooking similar plants and it provides a fascinating insight into the behavioral practices of early modern humans in southern Africa.

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Newly identified dendritic action potentials give humans unique brain power

Newly discovered action potentials in neuronal dendrites neurons uniquely amplify the computational power of the human brain, according to a new study.

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How malaria parasites become resistant to artemisinin antimalarial drugs

Malaria parasite mutations that inhibit the endocytoic appetite for a host's red blood cells may render them resistant to artemisinin, a widely used frontline antimalarial drug, according to a new study, which reveals a key molecular mechanism of drug resistance.

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Color-changing fiber and theory reveal fundamental mystery of knots

Color-changing fibers and mathematical theory combine to disclose the simple rules that govern the strength and stability of commonly used knots, researchers report.

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Earliest evidence for rhizomes roasting in Africa 170 thousand years ago

The 170,000-year-old charred remains of starchy plant parts from Border Cave, South Africa provides the earliest direct evidence for the collecting and cooking of carbohydrate-rich rhizomes, a new study reports.

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Stanford researchers build a particle accelerator that fits on a chip

For the first time, scientists at Stanford and SLAC have created a silicon chip that can accelerate electrons — albeit at a fraction of the velocity of the most massive accelerators — using an infrared laser to deliver, in less than a hair's width, the sort of energy boost that takes microwaves many feet.

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7 (more) board games to help kids think big

The number of board games being released each year is unprecedented. Among the deluge of new and interesting titles, many can help develop life-critical skills, such as creativity, problem solving, and lateral thinking. We look at seven more board games that help teach children to think big. We are living in a board game renaissance. Where once families had a paltry selection of dice rollers to c

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Gear that will help you win a cookie contest

Essential gear for perfect cookies (Mollie Sivaram via Unsplash/) The tantalizing aroma of cookies baking is so powerful that it's been bottled and sold in the form of candles and scented oils . But these clever teasers will never give you the satisfaction of devouring a shortbread cookie full of buttery taste and crumbly goodness. Fortunately, the only thing standing between you and a plate of c

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Manipulating the gap

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Health is veterans' biggest challenge in first year home

Health concerns are the most important readjustment challenge facing veterans in the first year after they leave military service, according to new research. Every year, more than 200,000 US service members transition out of military service. While many go on to have productive and fulfilling lives, researchers have called for greater attention to the military-to-civilian transition experience, s

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Four UV sanitizers for a cleaner phone, toothbrush, or makeup kit

Rest easier knowing your phone isn't always covered in bacteria found in fecal matter. (PhoneSoap/) Germs, colds and the flu are sometimes inescapable—but that doesn't mean we don't take precautions like washing our hands and evading coughing coworkers. You can also do a bit of work to keep harmful germs from contaminating your home. Thankfully, there are many great UV sanitizers fit for killing

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'Time is elastic': Why time passes faster atop a mountain than at sea level

Since Einstein posited his theory of general relativity, we've understood that gravity has the power to warp space and time. This "time dilation" effect occurs even at small levels. Outside of physics, we experience distortions in how we perceive time — sometimes to a startling extent. None Place one clock at the top of a mountain. Place another on the beach. Eventually, you'll see that each cloc

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Humans Roasted Starchy Carbs 170,000 Years Ago

Researchers uncover charred plant material from ancient hearth in South African cave

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Early modern humans cooked starchy food in South Africa, 170,000 years ago

"The inhabitants of the Border Cave in the Lebombo Mountains on the Kwazulu-Natal/eSwatini border were cooking starchy plants 170 thousand years ago," says Professor Lyn Wadley, a scientist from the Wits Evolutionary Studies Institute at the University of the Witwatersrand, South Africa (Wits ESI). "This discovery is much older than earlier reports for cooking similar plants and it provides a fasc

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Researchers build a particle accelerator that fits on a chip

On a hillside above Stanford University, the SLAC National Accelerator Laboratory operates a scientific instrument nearly 2 miles long. In this giant accelerator, a stream of electrons flows through a vacuum pipe, as bursts of microwave radiation nudge the particles ever-faster forward until their velocity approaches the speed of light, creating a powerful beam that scientists from around the worl

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A star called Betelgeuse might be ready to explode into a giant supernova

The star has been dimming rapidly in the last few weeks, and scientists are keen to know why.

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A New Alzheimer's Vaccine Could Be Headed for Human Trials

Credit: Getty Images. 3D Abstract HUD brain and nervous system wireframe hologram simulation node with lighting on blue background. Nanotechnology and futuristics science concept. Medical and Healthcare. Intelligence and knowledge brain structure Cognitive decline has been part of the aging process for all of human history, but a team of researchers from Australia says a new vaccine cocktail coul

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Climate change made Hurricane Florence bigger

Hurricane Florence produced more extreme rainfall and was spatially larger due to human-induced climate change, a new study shows. Previous research has suggested that human influences such as emission of greenhouse gasses that alter climate affects precipitation in extreme storms. The new research, however, is a first to use a "forecast attribution" framework that allows scientists to investigat

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Skipping alcohol is good for a heart that skips beats

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03964-9 Even light drinking could contribute to atrial fibrillation, a fluttery heartbeat with potentially grave consequences.

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Coalition 'gambles' on making Austria carbon neutral by 2040

Austrias's first coalition between conservatives and Greens announced it would aim for carbon neutrality by 2040 as it laid out a plan Thursday for the country to be a European "forerunner" to protect the climate.

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Barcelona bans older, most polluting cars

Barcelona imposed a ban Thursday on older, more polluting vehicles during most of the day in a bid to reduce air pollution in Spain's second largest city.

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REE mineral-bearing rocks found in eastern Mojave Desert

Scientists from the U.S. Geological Survey (USGS) have mapped a rare earth element deposit of magmatic carbonatite located in the Mountain Pass region of the eastern Mojave Desert. The new report details the geophysical and geological setting of the deposit, including a map of the deposit's subsurface extent, to help land-use managers evaluate sites for further exploration. The report was recently

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Taking the measure of glycans

When Lorna De Leoz invited laboratories to participate in her glycomics study, she hoped for 20 responses. Instead, she was deluged by emails from around the world.

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Taking the measure of glycans

When Lorna De Leoz invited laboratories to participate in her glycomics study, she hoped for 20 responses. Instead, she was deluged by emails from around the world.

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What would happen if you fell into a black hole?

Most of the current hypotheses about what's happening inside a black hole are mathematically possible. But that doesn't mean that all of those solutions are actually happening. If you search "black hole" on the internet, at least one of the top results will claim to tell you what could happen if a person fell into one. But to save you a lot of time and fruitless reading, the short, honest, but pe

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Drugs that fight inflammation may reverse brain aging

submitted by /u/ngt_ [link] [comments]

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This Italian scientist has become a celebrity by fighting vaccine skeptics

Virologist Roberto Burioni's blunt putdowns win fans but dismay some

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Chinese scientist gets jail for rogue gene editing

In November 2018, a Chinese scientist claimed he'd flouted ethics and the law to edit genes in human embryos. Other Chinese scientists call He Jiankui's research "crazy." Three gene-modified babies are now living in China, future uncertain. None The scientific community has been proceeding with caution as it explores the potential of gene editing. The high risk of unintended consequences, both im

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5 neuroscience reality checks, from a top neuroscientist

In his latest book , neuroscientist Joseph LeDoux challenges current assumptions about emotions and consciousness. LeDoux investigates the origins of life on this planet dating back four billion years. His book is a reminder that humans share the planet with a diverse array of animals and that, while unique, consciousness is not the only trait worth celebrating. In his new book, The Deep History

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The R. Kelly Story Is Bigger Than Most People Know

The first episode of Surviving R. Kelly Part II: The Reckoning features two women who, unlike most of the women in the Surviving R. Kelly documentaries, are not reporting abuse by the star. Nor are they social commentators pondering why Kelly has gotten away with his alleged behavior for so long. They are, rather, R. Kelly's former assistants, and they have thoughts on the first Surviving R. Kell

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Do Men Lose Weight More Easily Than Women?

There are a number of factors that cause men and women to lose weight differently.

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Leslie Baruch Brent obituary

Immunologist whose groundbreaking work helped provide the basis for organ transplantation Leslie Baruch Brent, who has died aged 94, was a PhD student at University College London when he co-authored the first of two groundbreaking papers. In 1953 he showed that immunological tolerance – the capacity to accept an unrelated tissue transplant – could be experimentally induced. This won lifelong fame

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Climate change and deforestation could decimate Madagascar's rainforest habitat by 2070

A study in Nature Climate Change has found that, left unchecked, the combined effects of deforestation and human-induced climate change could eliminate Madagascar's entire eastern rainforest habitat by 2070, impacting thousands of plants, mammals, reptiles, and amphibians that are endemic to the island nation.

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Pokémon Go Led to a Surge in Trespassers on Military Bases

Pokémon Go Away CBC News has obtained hundreds of pages of documents detailing the Canadian military's efforts to overcome an unexpected adversary: Pokémon Go. Within days of the game's July 2016 launch, players reportedly began wandering onto military property in pursuit of its virtual creatures and landmarks — and based on the newly released documents, the unexpected intrusion left the military

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Garjainia put the 'hyper' in 'hypercarnivore'

A new analysis of fossils from the 1950s reveals an awesome predator. Pre-dating the dinosaurs, the erythrosuchids were voracious "hypercarnivores." Think terrifying crocodiles on steroids. None This shape of its head is the giveaway. The massive jaws — not to mention "steak-knife" teeth — endowed it with the capacity to eat pretty much anything . Or anyone. If you're wondering how Garjainia woul

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REE mineral-bearing rocks found in eastern Mojave Desert

Scientists from the US Geological Survey have mapped a rare earth element deposit of magmatic carbonatite located in the Mountain Pass region of the eastern Mojave Desert. The new report details the geophysical and geological setting of the deposit, including a map of the deposit's subsurface extent, to help land-use managers evaluate sites for further exploration. The report was recently publishe

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Taking the measure of glycans

Glycans on antibody drugs can significantly affect their safety and efficacy. A study conducted by NIST investigates how well pharmaceutical and research labs are equipped to measure this important post-translational modification.

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Østat forbyder solcreme: Fra i dag må turister beskytte sig mod solen på anden vis

Palau er det første land i verden, der har indført et landsdækkende forbud.

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Grow your career (and salary) with industry-recognized certification training

Whizlabs offers certification training that can grow your career. Whizlabs training includes fields like cloud computing, project management, digital marketing and more. A lifetime Whizlabs subscription is discounted to $59. None For anyone looking to advance their professional career, few moves can make as immediate an impact as adding some advanced certifications to the resume. Earning those pr

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Smells of Nature Lower Physiological Stress

In a virtual reality experiment, participants recovered faster from a small electric shock when they could smell natural scents than when they could smell urban odors.

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What the Death of iTunes Says About Our Digital Habits

One of the great cultural events of the 2010s was the slow abandonment and ultimate death of iTunes. By the time the software was euthanized earlier this year, it had become an embarrassment, a mess of greasy preference panes and grayed-out, unreliable content. We were glad to see it go. When iTunes launched in January 2001, Apple's software was a place to organize the MP3s and other music files

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Many brain areas work together for learning

Researchers have successfully used a laser-assisted imaging tool to "see" what happens in brain cells of mice learning to reach out and grab a pellet of food. They say their experiments add to evidence that such motor-based learning can occur in multiple areas of the brain, even ones not typically associated with motor control. "Scientists should be looking at the entire brain to understand speci

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Grad Student Arrested Trying to Smuggle Specimens to China

Prosecutors say two other researchers from the same cancer lab at Beth Israel Deaconess Medical Center successfully stole material and brought it to China.

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We Should Ban All Menthol-Flavored Nicotine Products

It's not just for health: there's also a social justice issue — Read more on ScientificAmerican.com

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Meeting the NASA Mars rover that might find life on the Red Planet

NASA's Mars 2020 rover will search for signs of life on Mars, and New Scientist's Leah Crane visited it in the clean room where it is being assembled

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Astronomers say SpaceX's satellites are too bright in the sky. Friday's launch will try to fix that

They were seen sparkling across the skies of Montana right around Christmas: a tidy row of lights that some mistook to be UFOs. The glowing celestial train has been spotted in California, Texas, in the Netherlands and even Chile.

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To Store Renewable Energy, Try Freezing Air

Such energy storage technology could help relieve congested transmission lines in places like Vermont — Read more on ScientificAmerican.com

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The right bag can make a difference in your everyday life

Having the right bag is important when you want to pack up all your work and just go stare at the sea. (Iswanto Arif via Unsplash/) A bag isn't just a sack you carry things in. For some people, there's an obsession—almost a lifestyle—in finding the perfect bag for every use. If you're not one of those people, here's the good news: I am. And I will be your guide as you hunt for the ideal everyday

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Forsker om Sonos' 'genbrugstilstand': Det perfekte eksempel på planlagt forældelse

PLUS. Der skal nye regler til at sikre, at forbrugerne kan benytte velfungerende produkter i længere tid. Ellers når vi ikke vores klimamål, siger svensk forsker bag rapport om planlagt forældelse.

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Flexible photonic crystal from liquid thin-film metasurface

Photonic crystals are predicted to be one of the wonders of the 21st century. In the 20th century, new understanding of the electronic band structure-the physics that determines when a solid conducts or insulates-revolutionized the world. That same physics, when applied to photonic crystals, allows us to control light in a similar manner to how we control electrons. If photonic crystals live up to

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The Corvette is finally the supercar it deserves to be

The engine now sits behind the driver where it belongs. (Chevy/) The Corvette was a hell-raising sports car that pioneered leading-edge performance technologies like fuel injection, independent rear suspension, rear disc brakes, unidirectional tires, magnetically adjustable shock absorbers (the same ones Ferrari uses now) and more. There was a reason astronauts drove Corvettes. In recent decades,

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Denmark sets record, sourcing almost half of power from wind

submitted by /u/ngt_ [link] [comments]

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Walking the Future – a free in-person game about urban futures

Hey all! I just published Walking the Future. It's a free game where you walk around a neighborhood and explore the future by drawing inspiration from what you see: https://randylubin.itch.io/walking-the-future I ran it at Refactorcamp 2019 where it went incredibly well! Let me know if you have a chance to play or have feedback. submitted by /u/randylubin [link] [comments]

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Kurzweil's 2009 was our 2019

From "How My Predictions Are Faring" with all instances of "2009" replaced with "2019". These are all of mid-90s Ray Kurzweil's predictions for 2009, dating back to The Age of Spiritual Machines . It's almost uncanny how precise he was so long as you shift the accuracy by a decade. I'd say roughly 80% of his predictions accurately called the present day. Funnily enough, the ones that missed the m

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Ten not-to-be-missed PPPL stories from 2019 — plus a triple bonus!

Arms control robots, a new national facility, and accelerating the drive to bring the fusion energy that powers the stars to Earth: 10 (and a triple bonus!) Must-Read Stories of 2019.

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Rhythmicity of cluster headache

Although it is known that CH patients exhibit circadian rhythmicity of attacks, new data add a new feature with regard to the rhythmicity of attacks throughout the disease course. The time predilection of attacks seems to be non-linear, with nighttime predilection at the early phase of disease course, with a progressive increase of daytime predilection, then a return to nighttime predilection at t

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Google AI Tool Can Pinpoint Breast Cancer Better Than Clinicians

The software detected cancers at higher rates than radiologists, with fewer false positives — Read more on ScientificAmerican.com

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We Should Ban All Menthol-Flavored Nicotine Products

It's not just for health: there's also a social justice issue — Read more on ScientificAmerican.com

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Pumping cold water inside the body could help after heart attacks

Flushing cold water through a tube down the throat can stop the body overheating, helping prevent brain damage after a heart attack

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Authoritarian leaders thrive on fear. We need to help people feel safe | Michele Gelfand

Across the world, voters are falling prey to leaders who appeal to their worst instincts. Why? With every new year, I typically set aside some time to write down what I'm grateful for. Health, family, friends, books, jazz, my dog, among other things. This year I added something I've been taking for granted. It's democracy. Like many of us, I have worried about the rising tide of rightwing populism

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Elon Musk Hints That a Cybertruck Is Headed to Mars

Enigmatic Elon When SpaceX's Starship heads to Mars in 2022, its payload could include a Tesla Cybertruck. Maybe. SpaceX and Tesla CEO Elon Musk has been hinting that his companies might once again team up to send a car into space — and depending on how you interpret one of his latest tweets, it's starting to look even more likely that a Cybertruck could be headed to the Red Planet . Open to Inte

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You've likely never heard of the world's greatest ocean migration. Satellite data is helping scientists study it

The greatest animal migration on Earth is likely something you never heard of and few have witnessed: legions of tiny marine creatures rising to the ocean surface every night to feed on tiny plants, then sinking back into the deep, dark water at dawn.

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Some starfish-like animals see without eyes by changing body colour

Some brittlestars, close relatives of starfish and sea urchins, can work out where light is coming from by changing the colour of their bodies

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A close look at thin ice

On frigid days, water vapor in the air can transform directly into solid ice, depositing a thin layer on surfaces such as a windowpane or car windshield. Though commonplace, this process is one that has kept physicists and chemists busy figuring out the details for decades.

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Starry eyes on the reef: Color-changing brittle stars can see

Scientists have shown for the first time that brittle stars use vision to guide them through vibrant coral reefs, thanks to a neat colour-changing trick.

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Google's New AI is Great at Spotting Breast Cancer in X-Rays

A team of UK researchers at Google Health and Google's AI lab DeepMind has created a tool that can successfully identify breast cancer in X-ray mammograms, Wired reports . It's so successful, according to the paper published in the journal Nature this week, that it could one day rival or even outperform human radiologists. The researchers trained their AI using mammograms from nearly 91,000 women

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Starry eyes on the reef: Color-changing brittle stars can see

Scientists have shown for the first time that brittle stars use vision to guide them through vibrant coral reefs, thanks to a neat colour-changing trick.

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What is the future of Washington state's forests? Endangered marbled murrelet seabird caught in fight

Nobody's happy about the latest plans for Washington's forest lands.

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Few people consider religious affiliation of hospital they choose

A small minority of Americans surveyed consider the religious affiliation of the hospitals that treat them, but a majority said they didn't want religious doctrine dictating their healthcare choices, according to a study by researchers at the University of Colorado Anschutz Medical Campus.

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Operating room reproductive hazards for female surgeons

Researchers in this review article discuss occupational reproductive hazards for female surgeons in the operating room, including radiation exposure, surgical smoke, working conditions and physical demands, sharps injuries, anesthetic gases and the use of toxic agents.

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Lower risk for malignant melanoma after bariatric surgery

Bariatric surgery is associated with a distinct reduction in skin-cancer risk, a study shows. This finding can be described as a key piece of evidence that substantiates the connection between weight loss and malignant skin cancer.

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A close look at thin ice

Marrying theoretical work with experiments and high-tech imaging techniques, atmospheric chemists Chongqin Zhu and Joseph S. Francisco of the University of Pennsylvania and colleagues have identified a new way that ice grows in two dimensions.

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Global call to action on FH aims to improve diagnosis and treatment

The FH Foundation and World Heart Federation joined together to tackle the global burden of familial hypercholesterolemia (FH), a vastly under-recognized and poorly managed public health concern. A Global Call to Action on FH, authored by a global panel of scientific experts, advocacy leaders, public health officials, and individuals with FH from 40 countries, notes glaring gaps in screening and g

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Study: Hearing develops in tandem with form and function

New research reveals a key insight into the development of hair bundles, the intricately complex assemblies in the inner ear responsible for hearing. Researchers found that stereocilia, roughly 100 of which are assembled into a hair bundle, widened simultaneously with the onset of mechanotransduction. The stereocilia only elongated to their mature lengths after transduction had been established.

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Climate signals detected in global weather

Searched for and found: climate researchers can now detect the fingerprint of global warming in daily weather observations at the global scale. They are thus amending a long-established paradigm: weather is not climate — but climate change can now be detected in daily weather.

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Starry eyes on the reef: Color-changing brittle stars can see

Scientists have shown for the first time that brittle stars use vision to guide them through vibrant coral reefs, thanks to a neat color-changing trick.

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Terrorists could make a 'dirty bomb' from this common medical device; why regulators won't act

Scientific experts warned Congress more than a decade ago that just four teaspoons of radioactive cesium-137—if spread by a terrorist's "dirty bomb"—could contaminate up to 10 square miles of Manhattan.

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Harnessing the microbiome to improve stroke recovery

Supplementing the body's short chain fatty acids can improve stroke recovery, according to research in mice recently published in JNeurosci. Short chain fatty acid supplementation may be a noninvasive addition to stroke rehabilitation therapies.

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Hearing through lip-reading

Brain activity synchronizes with sound waves, even without audible sound, through lip-reading, according to new research published in JNeurosci.

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Researchers determine how a specific protein regulates tumor growth

Immune checkpoints are surface proteins that cancer cells use to evade immune response. These surface proteins are critical for cancer cell growth and drugs targeting these proteins have revolutionized the management of patients with a wide array of cancers. Finding a mechanism to degrade these immune checkpoints may allow the immune system to kill cancer cells.

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Veterans report health as their No. 1 worry

Health concerns are the most important readjustment challenge facing veterans in the first year after they leave military service.

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Dangerous times call for dangerous women | Pat Mitchell

Pat Mitchell has nothing left to prove and much less to lose — she's become a "dangerous woman." Not dangerous as in feared, she says, but fearless: a force to be reckoned with. In this powerful call to action, Mitchell invites all women, men and allies to join her in embracing the risks necessary to create a world where safety, respect and truth burn brighter than the darkness of our current tim

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The science stories likely to make headlines in 2020

Science's news editors and writers predict this year's biggest developments

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Finding new physics will require a new particle collider

What it should look like and where it should be built are uncertain

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2019 in review: science and technology

Science past. Science present. And science yet to come.

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The world this week

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KAL's cartoon

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Switching tracks: Reversing electrons' course through nature's solar cells

Think of a train coming down the tracks to a switch point where it could go either to the right or the left—and it always goes to the right.

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UNC expert helps treat astronaut's blood clot during NASA mission

"My first reaction when NASA reached out to me was to ask if I could visit the International Space Station (ISS) to examine the patient myself," said Stephan Moll, MD, UNC School of Medicine blood clot expert and long-time NASA enthusiast. "NASA told me they couldn't get me up to space quickly enough, so I proceeded with the evaluation and treatment process from here in Chapel Hill."

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Exclusions in family planning programs and health statistics contravene human rights

Infertility impinges on the human right to have a child, according to new research published today, which also calls for greater healthcare equity and more inclusive reproductive health surveillance.

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GMRT discovers a gigantic ring of hydrogen gas around a distant galaxy

A team of astronomers at the National Centre for Radio Astrophysics (NCRA) in Pune, India have discovered a mysterious ring of hydrogen gas around a distant galaxy, using the Giant Metrewave Radio Telescope (GMRT). The ring is much bigger than the galaxy it surrounds and has a diameter of about 380,000 light-years (about 4 times that of our Milky Way).

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Unattainable standards of beauty for today's woman

While the average American woman's waist circumference and dress size has increased over the past 20 years, Victoria's Secret fashion models have become more slender, with a decrease in bust, waist, hips and dress size, though their waist to hip ratio (WHR) has remained constant.

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UNC expert helps treat astronaut's blood clot during NASA mission

Moll was the only non-NASA physician NASA consulted when it was discovered that an astronaut aboard the ISS had a deep vein thrombosis (DVT) — or blood clot — in the jugular vein of their neck. Moll co-wrote a case study on the successful treatment that has been published in the New England Journal of Medicine.

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A new study finds research gaps in environmental science disciplines across the Arctic

More sampling is needed particularly in the Canadian Arctic Archipelago, northern Greenland, northern Taimyr, and central and eastern Siberia.

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To breed better cattle, 'score' gene mutations?

Researchers have developed a test to score each DNA mutation in cattle, making it possible to select likely causal genetic markers based on their biological functions. The study looks at cattle from different countries and breeds and aims to help farmers with selective breeding. The research can also apply to humans and help our understanding of DNA mutations and their biological functions. Previ

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Fighting more likely for teen boys who witness gender violence

Teenagers with more equitable gender attitudes—feeling that boys and girls deserve equal opportunities and respect—have lower odds of reporting violent behaviors, a recent study finds. Teenage boys who witness their peers abusing women and girls are much more likely to bully and fight with others, as well as behave abusively toward their dates, compared to teenage boys who don't witness such beha

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Want to Crack Open a Safe? Try Nitroglycerine

Originally published in January 1856 — Read more on ScientificAmerican.com

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The 2020 U.S. Presidential Race: A Cheat Sheet

Julián Castro is often mistaken for his identical twin brother, Joaquín, a member of the U.S. House of Representatives. The two men almost bear more resemblance to each other than the Julián Castro who entered the presidential race almost a year ago, on January 12, 2019, does to the Julián Castro who leaves it on January 2, 2020. When Castro, the former mayor of San Antonio and secretary of housi

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If Machines Want to Make Art, Will Humans Understand It?

submitted by /u/dwaxe [link] [comments]

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Trial suggests babies in intensive care can be better protected from parental bacteria

A research team reports it has developed and tested a relatively simple strategy for reducing the chance of parents exposing their babies in the NICU to one of the most commonly diagnosed and potentially deadly microbial scourges in a hospital: Staphylococcus aureus.

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Godt nyt for lever-patienter: Nu kan organer fryses ned før transplantation

Det er nu lykkedes amerikanske forskere at køle menneske-levere ned til under frysepunktet, uden at de tager skade. Det forlænger holdbarheden betragteligt.

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MIPT physicists find ways to overcome signal loss in magnonic circuits

Researchers from the MIPT and their Russian colleagues have demonstrated that the coupling elements in magnonic logic circuits are so crucial that a poorly selected waveguide can lead to signal loss. The physicists developed a parametric model for predicting the waveguide configuration that avoids signal loss, built a prototype waveguide, and tested the model in an experiment.

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Exclusions in family planning programs and health statistics contravene human rights

Infertility impinges on the human right to have a child, according to new research published today, which also calls for greater healthcare equity and more inclusive reproductive health surveillance.

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IV delivery dramatically ups TB vaccine's power

Delivering the tuberculosis vaccine intravenously makes it more effective than the standard injection into the skin, a new study with monkeys shows. Worldwide, more people die from tuberculosis (TB) than any other infectious disease, even though the vast majority receive a vaccination. The vaccine just isn't that reliable, researchers say. Now, the new findings in Nature suggest that simply chang

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Unscrambled Eggs: Self-Organization Restores Cells' Order

Put a banana in a blender, and you don't expect to get it back. But blend up a bunch of living cells and new research suggests that you maybe should. If simply left alone, the liquid innards of a cell — its cytoplasm — have a surprising capacity to reassemble, even without components that appeared essential to some scientists. Experiments recently described in Science revealed the unanticipated e

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Closer to identifying leukemic stem cells

Researchers at the Josep Carreras Leukaemia Research Institute have developed innovative diagnostic trials to identify cells resistant to leukemia treatment. These new trials allow the identification of a subgroup of patients with an unfavorable prognosis at the time of diagnosis of acute myeloid leukemia.

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GMRT discovers a gigantic ring of hydrogen gas around a distant galaxy

A team of astronomers at the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune, India, have recently discovered an extremely large ring composed primarily of neutral hydrogen gas around a distant galaxy named AGC 203001 using the Giant Metrewave Radio Telescope (GMRT). This ring happens to be only the second known example of such elusive rings whose origin remains a matter of debate among

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Half the amount of chemo prevents testicular cancer from coming back, new trial shows

Testicular cancer can be prevented from coming back using half the amount of chemotherapy that is currently used, a new clinical trial has shown.The new trial showed that giving men one cycle of chemotherapy was as effective at preventing men's testicular cancer from coming back as the two cycles used as standard.

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Switching tracks: Reversing electrons' course through nature's solar cells

New research from Washington University in St. Louis and Argonne National Laboratory coaxes electrons down the track that they typically don't travel — advancing understanding of the earliest light-driven events of photosynthesis. The findings were published in the Proceedings of the National Academy of Sciences.

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Supercharged protein 'factories' could cut drug production costs

Researchers have discovered a way to supercharge protein production up to a thousandfold. Medicines such as insulin for diabetes and clotting factors for hemophilia are hard to synthesize in the lab. Such drugs are based on therapeutic proteins, so scientists have engineered bacteria into tiny protein-making factories. But even with the help of bacteria or other cells, the process of producing pr

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If Machines Want to Make Art, Will Humans Understand It?

Assuming that the emergence of consciousness in artificial minds is possible, those minds will feel the urge to create art. But will we be able to understand it? To answer this question, we need to consider two subquestions: when does the machine become an author of an artwork? And how can we form an understanding of the art that it makes? Empathy, we argue , is the force behind our capacity to u

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Physicists find ways to overcome signal loss in magnonic circuits

Researchers from the Moscow Institute of Physics and Technology, Kotelnikov Institute of Radio Engineering and Electronics, and N.G. Chernyshevsky Saratov State University have demonstrated that the coupling elements in magnonic logic circuits are so crucial that a poorly selected waveguide can lead to signal loss. The physicists developed a parametric model for predicting the waveguide configurat

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Car of the Year: ExtremeTech's Best Cars for 2020

How do you pick the right Car of the Year when so many cars are so good? You can choose the car you'd drive if you had Wall Street money (Flash: Porsche 911 Named Car of the Year Again). You can award the vehicle that drives over boulders (Flash: Jeep Gladiator Honored). You can call on your must-be-Motown roots (Flash: Corvette Wins Car of the Year Again), especially this year when the Corvette

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If You Want to Degrade, You Have to Get In the Door

Back for more, and welcome to 2020! Frankly, that sounds like a year out of a science fiction story, but I will admit that it's not the first year about which I've had that thought, either. Let's get right into the drug discovery with a new paper from a team at UNC in the very fashionable field of targeted protein degradation. As those who have worked in this area will have come to appreciate, th

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A virtual version of da Vinci's mystery glass orb has helped explain its weirdness

The world's costliest painting depicts a glass sphere with curious optical properties. Computer scientists figured out what the artist was getting at.

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Some learning is a whole-brain affair, study shows

Researchers at Johns Hopkins Medicine have successfully used a laser-assisted imaging tool to 'see' what happens in brain cells of mice learning to reach out and grab a pellet of food. Their experiments, they say, add to evidence that such motor-based learning can occur in multiple areas of the brain, even ones not typically associated with motor control.

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Are dark matter and dark energy related in anything apart from name?

There is no law of physics dictating that dark matter and dark energy can't be connected, and it is natural to wonder about it, writes Chanda Prescod-Weinstein

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Whales Help Explain the Evolutionary Mystery of Menopause

Like humans, female killer whales stop reproducing decades before the end of their lifespan. Grandmothers might show why.

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175th Anniversary Year Jamboree

— Read more on ScientificAmerican.com

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Platinum is great at splitting water for a surprise reason

Why is platinum the best catalyst for splitting water molecules to produce hydrogen gas? New research offers a surprising explanation. The findings in ACS Catalysis helps to resolve a nearly century-old question, the researchers say. And it could aid in designing new catalysts for producing hydrogen that are cheaper and more plentiful than platinum. That could ultimately help in reducing emission

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Once unloved, threatened storks given new hope in Indian zoo

The hatching of two storks on a bamboo platform in a remote Indian zoo has raised hopes that one of the world's most threatened bird species can be saved, experts say.

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Thai retailers ban single-use plastic bags

Thai retailers kicked off 2020 with a ban on single-use plastic bags, joining the battle against throwaway carriers in the Southeast Asian nation where citizens go through an average of eight every day.

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Indonesia floods leave nearly 30 dead, several missing

Indonesia's disaster agency warned Thursday of more deaths after torrential rains pounded the Jakarta region, triggering floods and landslides that killed at least 29 and left vast swaths of the megalopolis underwater.

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You Can Now Feel 3D images, Thanks to This New Tech

submitted by /u/Danj_memes_ [link] [comments]

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Could this be the most realistic Synthetic voice?

submitted by /u/Wishmecake [link] [comments]

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Once unloved, threatened storks given new hope in Indian zoo

The hatching of two storks on a bamboo platform in a remote Indian zoo has raised hopes that one of the world's most threatened bird species can be saved, experts say.

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Bird flu kills 25,000 turkeys in eastern Poland, sparks cull

Authorities in eastern Poland say bird flu is responsible for the deaths of at least 25,000 turkeys in poultry farms near the country's borders with Ukraine and Belarus.

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Bird flu kills 25,000 turkeys in eastern Poland, sparks cull

Authorities in eastern Poland say bird flu is responsible for the deaths of at least 25,000 turkeys in poultry farms near the country's borders with Ukraine and Belarus.

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Duolingo sparks Gaelic boom as young Scots shrug off 'cringe' factor

More than 127,000 sign up to learn while Open University launches Scots language course Almost double the number of people in Scotland who already speak Scottish Gaelic have signed up to learn the language on the popular free platform Duolingo in over a month, concluding a proliferation in courses, prizes and performance in Gaelic and Scots during 2019, as younger people in particular shrug off t

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Keep exercising: New study finds it's good for your brain's gray matter

A study in Mayo Clinic Proceedings from the German Center for Neurodegenerative Diseases provides new evidence of an association between cardiorespiratory fitness and brain health, particularly in gray matter and total brain volume — regions of the brain involved with cognitive decline and aging.

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Diabetes can independently lead to heart failure, population study shows

Heart problems are a common development for people with diabetes. In fact, about 33% of people in the US admitted to the hospital for heart failure also have diabetes. Heart failure may be the result of a co-condition, such as hypertension or coronary heart disease, but not always.

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Structured, salary-only compensation plan for physicians is a model for pay equity

Gender pay equity in the field of medicine remains elusive. Gender-based pay differences have been shown to persist, even when controlling for experience, clinical productivity, academic rank and other factors. These inequities result in significantly lower lifetime earnings, job burnout and negative attitudes toward work, and adverse effects on the profession and society.

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Update On Wind Turbines and Birds

Objective numbers are great for any debate or discussion. They have a way of cutting through all the subjectivity, confirmation bias, and nonsense. I like to say – you can't argue with the numbers – but of course, I know that people still do. More importantly, they straight up ignore, deny, or distort the numbers, painting an alternate reality at will. But for those who still care about data and

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Cities Struggle to Boost Ridership With 'Uber for Transit' Schemes

Helsinki, Los Angeles, Shanghai, Singapore, and other metros have been experimenting with on-demand buses—and not seeing a lot of success.

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How to forgive someone who has hurt you—and why you should

It's not for the benefit of the person who wronged you. (DepositPhoto/) Every new year brings expectations for change and resolutions for better behavior , and the start of an entire new decade makes these pledges feel that much more hopeful. Perhaps you've promised yourself you'll spend the next few weeks changing your dietary habits , or solidifying a daily gym routine . This year I'm channelin

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Image of the Day: Moth Movement

Neuronal signal timing is crucial for muscle coordination during flight.

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The True Cause of the Opioid Epidemic

In 2015, Jennifer Silva, a professor of sociology and anthropology at Bucknell University, began interviewing people in the coal region of northeastern Pennsylvania. She was working on a project, which would become the book We're Still Here , about how poor and working-class Americans were affected by the collapse of the coal industry—the major job provider in the region. She was curious how the

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Drugs that fight inflammation may reverse brain aging

Drugs that tamp down inflammation in the brain could slow or even reverse the cognitive decline that comes with age, according to new research in mice. The researchers report that senile mice given one such drug had fewer signs of brain inflammation and were better able to learn new tasks, becoming almost as adept as mice half their age. "We tend to think about the aged brain in the same way we t

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Nytårsdag flyttede dele af Australien 1,8 meter mod nordøst

Delstaterne Victoria og New South Wales udrullede nytårsdag en opdatering af officielle gps-positioner som veje og ejendomme for at kompensere for de tektoniske pladers bevægelser.

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Self-Tracking Your 2020 Resolutions

What you need to know before getting that new gadget — Read more on ScientificAmerican.com

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Mind Control for the Masses—No Implant Needed

A wave of startups wants to make brain-computer interfaces accessible without needing surgery. Just strap on the device and think.

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Folketing og efterretningstjenester misser deadline for »ufravigeligt« krav til it-sikkerhed

Krav om DNSSEC-teknologi til at garantere en webadresses autencitet trådte i kraft ved årsskiftet, men bliver alligevel ikke brugt på en række centrale myndigheders hjemmesider.

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Self-Tracking Your 2020 Resolutions

What you need to know before getting that new gadget — Read more on ScientificAmerican.com

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Nocturnal Moth Species Has a Flashy Secret

The dot-underwing moth may visibly signal to mates under cover of darkness — Read more on ScientificAmerican.com

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NASA 2020: Are You Ready?

submitted by /u/mind_bomber [link] [comments]

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Nocturnal Moth Species Has a Flashy Secret

The dot-underwing moth may visibly signal to mates under cover of darkness — Read more on ScientificAmerican.com

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Hackers will be the weapon of choice for governments in 2020

From the Olympics to elections, nations use hackers to win a bigger geopolitical game.

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Philosophy Is a Public Service – Issue 79: Catalysts

Several years ago, I climbed Mt. Washington in Nevada to see the oldest complex life forms on Earth. Typically found at elevations higher than 3,000 meters, bristlecone pine trees can live for as long as five millennia. They do so by growing very slowly in arid environments that are too harsh for most other life forms. In current climate conditions, a bristlecone pine tree might expand in thickne

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The 5 Most Popular Nautilus Feature Articles in 2019 – Issue 79: Catalysts

What Impossible Meant to Feynman When you are a young physics professor at Caltech, giving a lecture about a new type of matter you have discovered, and your idol, Richard Feynman, sitting in the front row, belts out, after your talk, "Impossible!" you are going to be rattled. And Paul J. Steinhardt was. But Steinhardt, today the Albert Einstein Professor in Science at Princeton University, knew

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The 5 Most Popular Nautilus Blog Posts in 2019 – Issue 79: Catalysts

The Simple Dutch Cure for Stress John Loo / Flickr Since reading this November post, by Alice Fleerackers, I haven't been able to go for a jog in the wind without " uitwaaien " springing to mind. It is one of those difficult to translate words, from the Dutch, that means catching the breeze. Engaging in " uitwaaien ," Fleerackers explained, can have some surprising benefits for mental wellbeing,

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Spildevand fra flytoiletter bugner af resistente bakterier

Der er otte gange flere multiresistente E.coli-bakterier i flytoiletter end i spildevand fra hospitaler, viser tysk undersøgelse.

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PLOS ONE retracts a paper first flagged in 2015 — and breaks the 100 retraction barrier for 2019

A team of researchers in Saudi Arabia, led by an ex-pat from Johns Hopkins University, has lost three papers for problems with the images in their articles. The three retractions pushed the journal — which has become a "major retraction engine" for reasons we explain here and here — over 100 for 2019. In December, … Continue reading

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Is globalization actually disempowering?

All animals operate on empirical senses to survive. With technology, humans have so increased our sensorial capacity that we maintain a high stress level without necessarily being in danger. Globalization creates a sense of unity in that we are aware of what's going on in the world without being empowered to do something about the tragedy that occurs. By narrowing that focus, we can actually have

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My 92-Year-Old Father Didn't Need More Medical Care

My 92-year-old father fell one Saturday night a few months ago. My mother could not pick him up. Her brother was not answering his cellphone, so she called 911. An ambulance crew brought him to the hospital. The emergency-room physician ordered a CT scan. A spot on the scan worried him, so he ordered an MRI, which confirmed that a tumor the size and shape of a pear was occupying the frontal lobes

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The Inverted Likability Test

The outcome of the 2004 election offered pundits a puzzle. George W. Bush had, as many of them saw it, been a disastrous president. He redistributed money from the poor to the rich. He started a war that was rapidly turning sour. Most irritating of all, he constantly stumbled over his own words. How, they asked themselves, could so many of their compatriots have once again voted for such a doofus

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America Is Now the Divided Republic the Framers Feared

George Washington's farewell address is often remembered for its warning against hyper-partisanship: "The alternate domination of one faction over another, sharpened by the spirit of revenge, natural to party dissension, which in different ages and countries has perpetrated the most horrid enormities, is itself a frightful despotism." John Adams, Washington's successor, similarly worried that "a

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Chinese air quality regulations could put an end to 'new car smell'

The chemical compounds that make up "new car smell" can be harmful, and they have been found in new cars at levels 10 times higher than recommended limits

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It Looks Like Health Insurance, but It's Not. 'Just Trust God,' Buyers Are Told.

Some state regulators are scrutinizing nonprofit Christian cost-sharing ministries that enroll Americans struggling to pay for medical care, but aren't legally bound to cover their members' claims.

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Dansk Byggeri: Skift olie- og naturgasfyr ud med varmepumper og spar 640.000 ton CO2

Byggeriets brancheorganisation opfordrer til en plan med både pisk og gulerod, så 100.000 husejere skrotter deres oliefyr og yderligere 400.000 går fra naturgas til fjernvarme eller varmepumpe.

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Direct observation of dynamic protein interactions involving human microtubules using solid-state NMR spectroscopy

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13876-x Microtubule (MT) organization is regulated by many microtubule-associated proteins (MAPs) that contain intrinsically disordered regions. Here authors produce [13C, 15N] labeled, functional microtubules from human cells for solid-state NMR which allows studying MAP-MT interactions.

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Gut stem cell aging is driven by mTORC1 via a p38 MAPK-p53 pathway

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13911-x Intestinal aging is associated with declines in structure and absorption of nutrients. Here, the authors show that aging related intestinal decline is mediated by activation of the mTORC1-p38MAPK-p53 pathway in intestinal stem cells and can be ameliorated by abrogating mTORC1 or p38MAPK activity.

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Microfluidic control over topological states in channel-confined nematic flows

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13789-9 It is interesting phenomenon that chiral order can emerge in intrinsically achiral liquid crystals. Here Čopar et al. demonstrate achiral-to-chiral transition of the nematic liquid crystals flow in microfluidic channels and their behaviour, stability, and dependence on geometric and material parameters.

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Engineering grain boundaries at the 2D limit for the hydrogen evolution reaction

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13631-2 Transition metal dichalcogenides demonstrate fascinating capabilities for electrocatalytic H2 evolution, although the activities vary widely depending on nanomaterial sites available. Here, authors show the grain boundaries of atomically thin MoS2 to be especially active sites for H2 evolution.

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Genome-scale reconstructions of the mammalian secretory pathway predict metabolic costs and limitations of protein secretion

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13867-y The secretory pathway is used in the production of most biopharmaceuticals, but the associated biosynthetic costs are little understood. Here, the authors integrate the core secretory pathway into genome-scale metabolic models of human, mouse, and CHO cells, enabling in silico analysis.

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In vivo functional analysis of non-conserved human lncRNAs associated with cardiometabolic traits

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13688-z Majority of human long non-coding RNAs (lncRNAs) are not conserved in mouse. Here the authors identify metabolic trait-associated lncRNA genes and show a functional role of a non-conserved human lncRNA, LINC01018, in lipid metabolism using a humanized mouse model.

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An artificial spiking afferent nerve based on Mott memristors for neurorobotics

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13827-6 Though artificial sensory systems based on electronic devices have been realized, further transformation of data into spikes is required for neural network optimization. Here, based on NbOx Mott memristors, the authors report artificial spiking afferent nerves for accessing spiking systems and demonstrate spi

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Measuring local-directional resolution and local anisotropy in cryo-EM maps

Nature Communications, Published online: 02 January 2020; doi:10.1038/s41467-019-13742-w It is important to analyse the local resolution of cryo-EM maps. Here the authors present MonoDir, a fully automatic and parameter free method for the directional local resolution analysis of cryo-EM maps that requires only the final map as input and they also propose indicators for assessing map quality.

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The Sum of What? On Gender, Visibility, and Wikipedia

The gender imbalances among Wikipedia's editors and biographies — both over 80 percent male — are well documented. But what of the backbone of the encyclopedia: the sources cited within its pages? To answer that question, I scoured Wikipedia's top math and literature pages. The results weren't pretty.

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Salget af elbiler satte rekord – men det gjorde salget af fossilbiler også

Der blev solgt næsten fire gange så mange elbiler i 2019 som i 2018, men det forhindrede ikke, at også salget af fossilbiler blev rekordhøjt.

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Love, art and stories: decoded | The Age of A.I.

submitted by /u/mind_bomber [link] [comments]

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Britisk vagthund advarer mod kunstig intelligens i offentlig overvågning

Offentligheden har ingen idé om, hvordan kameraer bliver brugt til ansigtsgenkendelse, biometri og mundaflæsning, for der er overhovedet ingen gennemsigtighed, mener britisk kommissær for overvågningskameraer.

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Google-algoritme slår læger i diagnostik af brystkræft

Nyt studie viser, at en kunstig intelligens er bedre til at spotte brystkræft end en radiolog af kød og blod.

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A computer made from DNA can compute the square root of 900

A DNA computer consisting of strands of DNA in a test tube can calculate the square root of numbers up to 900

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Intelligent alarm skal i fremtiden hjælpe læger med at forudse hjerteanfald

Forskere fra Københavns Universitet tester i øjeblikket en ny alarm, som i fremtiden skal hjælpe…

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Sådan uddanner vi læger i Region Sjælland

I starten af januar udklækkes det første kuld af 23 nye læger fra uddannelsen i Region Sjælland. Initiativet styrker rekrutteringen af læger til yderområder.

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Anonymous Message On Presidential Candidate Andrew Yang

submitted by /u/onlyartist6 [link] [comments]

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Dozens of monkeys die in German zoo fire

Flames from flying New Year's Eve lanterns might have sparked a blaze that killed dozens of monkeys at a zoo in northwestern Germany, management and security services said Wednesday.

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Dozens of monkeys die in German zoo fire

Flames from flying New Year's Eve lanterns might have sparked a blaze that killed dozens of monkeys at a zoo in northwestern Germany, management and security services said Wednesday.

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Australia orders evacuation of fire-ravaged towns before heatwave

Australia ordered residents and tourists out of the path of raging bushfires Thursday as the country braced for a weekend heatwave expected to fan the deadly inferno.

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India targets new moon mission in 2020

India plans to make a fresh attempt to land an unmanned mission on the moon in 2020 after a failed bid last year, the head of the country's space programme said Wednesday.

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About 5,000 golden eagles winter in eastern U.S.

Golden eagles are back from Canada, spending the winter in the eastern U.S.

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About 5,000 golden eagles winter in eastern U.S.

Golden eagles are back from Canada, spending the winter in the eastern U.S.

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Health ranks as top concern for veterans immediately after military service

In a survey of nearly 10,000 veterans newly separated from military service, most were satisfied with their work and social well-being, but more than half reported chronic physical health problems, and a third reported chronic mental health conditions.

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AARP report: Insufficient evidence that dietary supplements benefit brain health

Experts convened by the AARP say don't waste your money on dietary supplements claiming they improve brain health. A healthy diet and lifestyle are the best medicine for your brain.

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Euroimmun: Graphic Art, Made in Germany

EuroImmun is a German diagnostics biotech, founded by the most charming Professor Stöcker and recently sold to PerkinElmer. Elisabeth Bik checked some of company's papers, many coauthored by Stöcker himself, and she raised questions. The company says this "testifies to a lack of knowledge of the matter".

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Stalins svältande nomader

Kazakstan, vintern 1932–33. Svält, terror och köld håller befolkningen på Centralasiens stäpper i ett järngrepp. Ihjälsvultna kazaker ligger i drivor i byarna och längs vägarna. Mellan åren 1931 och 1934 kommer återkommande svältkatastrofer att skörda omkring 1,5 miljoner människoliv bara i den kazakiska delrepubliken i Sovjetunionen. Mer än en tredjedel av alla kazaker och en fjärdedel av Kazakst

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Kina ritar om världskartan med nya sidenvägen

Kazakstan, september 2013 Kinas nye president Xi Jinping håller ett tal vid Nazarbayev-universitetet i Kazakstans huvudstad Nur-Sultan. "För över 2000 år sedan", säger han, "kom kineser hit till Centralasien och byggde Sidenvägen som förenade öst och väst, Asien och Europa." "Nu", fortsätter Xi Jinping, "har vi börjat bygga en ny väg som ska förena kontinenten".

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The implications of extremely low cost power

Solar Power is no longer science fiction. It's here and it's cheaper than fossil fuels. The Los Angeles DWP recently inked a deal for solar power at 2 cents per kwh, plus storage for 1.3 cent per kwh that will allow the city to run on the sun from 7 AM to 11 PM. And there is no sign that progress is slowing. Solar panels are currently only 20% efficient, new technology could allow us to raise tha

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Samsung will unveil an artificial human at CES

submitted by /u/camdoodlebop [link] [comments]

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'There is no limit': how scholarships and work experience are changing Indigenous lives | Hannah McCleary for IndigneousX

Culture can connect people on a level unlike anything else – if you've experienced it, you know what I mean Australia must realise that an important step towards reconciliation is showing Aboriginal and Torres Strait Islander students that they are valued and important, and that we believe in their future. Providing opportunities for professional experience, learning and networking is a crucial c

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Transportminister vil have nattog til lufthavnen – ikke Københavns Hovedbanegård

PLUS. Støttepartierne har fået en formulering om DSB og nattog med i finansloven. Ifølge ministeren handler det dog først og fremmest om at hjælpe svenskere og østrigere med deres planer.

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Agility Robotics 2019 Year in Review

submitted by /u/izumi3682 [link] [comments]

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AI 'outperforms' doctors diagnosing breast cancer

submitted by /u/born_wolf [link] [comments]

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Chandrayaan-3: India unveils fresh $35m attempt to put a rover on the moon

Space programme seeks to bounce back after 2019 project ended with a crash landing on the lunar surface India plans to make a fresh attempt at an unmanned mission on the moon this year, the head of the country's space programme has said, after a 2019 bid ended in a crash landing. Work was going "smoothly" on the Chandrayaan-3 mission to put a rover probe on the moon's surface, Indian Space Resear

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AI system is better than human doctors at predicting breast cancer

An AI system trained to spot abnormalities in mammograms can predict who will or won't develop breast cancer better than radiologists

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Climate change hope for hydrogen fuel

A trial where hydrogen is added to natural gas raises hopes of a low-carbon heating revolution.

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2020 Vision: Looking Back to Drive Forward

As 2019 comes to an end and a new decade approaches, we look back at all the important Earth science NASA has revealed. This is a time to take stock in all that we have learned and to use those insights to better understand and reliably predict the many ways our planet is changing in the coming decades. Our planet is an interconnected system, and every new discovery leads to new understandings an

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Watching the 2010s Become History

At the start of 2010, Barack Obama was just 11 months into his presidency. The recovery from the Great Recession was in its early stages. The Marvel cinematic universe consisted of Iron Man and Edward Norton's Hulk. Less than 20 percent of Americans owned smartphones. It's been a long decade. In three years at The Atlantic , in a role that often has me poking around our archive, I've come to unde

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Syd Mead, The Man Who Showed Us What The Future Looked Like, Has Died

submitted by /u/candiedbug [link] [comments]

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Researchers learn more about teen-age T.Rex

Without a doubt, Tyrannosaurus rex is the most famous dinosaur in the world. The 40-foot-long predator with bone crushing teeth inside a five-foot long head are the stuff of legend. Now, a look within the bones of two mid-sized, immature T. rex allow scientists to learn about the tyrant king's terrible teens as well.

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New device in New Mexico turns back clock on astronomy

A newly forged steel instrument that can pinpoint the path of stars and planets across the night sky using the naked eye is a throwback to the years just before the advent of telescopes, returning stargazers in the hills of northern New Mexico to the essentials of astronomy in the past.

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All global sustainability is local

Nations across the world are following a United Nations blueprint to build a more sustainable future—but a new study shows that blueprint leads less to a castle in the sky, and more to a house that needs constant remodeling.

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New study estimates the global extent of river ice loss as Earth warms

More than half of Earth's rivers freeze over every year. These frozen rivers support important transportation networks for communities and industries located at high latitudes. Ice cover also regulates the amount of greenhouse gasses released from rivers into Earth's atmosphere.

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All global sustainability is local

Groundbreaking ways to quantify progress towards sustainable development goals find sustainability, like politics, is local.

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Tiny T. rex fossils aren't a new species – they are just teenagers

A handful of unusually small tyrannosaur fossils are not evidence of a new species – they simply show us what adolescent T. rexes looked like

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Delivering tuberculosis vaccine directly to veins may boost protection

Delivering the only vaccine known to treat tuberculosis via veins rather than the skin can dramatically increase its potency, tests in monkeys show

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The global failure to push PrEP is hindering the fight against HIV

The UN set a target of 3 million people on the HIV prevention drug PrEP by 2020 – but lingering prejudice and sheer ignorance of its existence mean we're nowhere near

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Bottlenose dolphins are splitting into two different species

There are two types of bottlenose dolphins in South America that look different and live in different places. Now genetics suggests they are becoming separate species

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My Go-To Arguments for Free Will

Free will must exist if some of us have more of it than others — Read more on ScientificAmerican.com

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Bone analysis suggests small T. rexes were not a separate genus; they were kids

Settling a decades-long debate about whether small Tyrannosaurus rex specimens represent a separate genus or rather just "kids" of their kind, a new examination of thinly sliced bones from two specimens at the Burpee Museum of Natural History in Illinois suggests the latter. The specimens were juveniles that had not yet experienced a major growth spurt before they

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Tumor DNA platform scopes out and classifies colorectal cancer

A new machine learning platform can identify patients with colorectal cancer and helps predict their disease severity and survival, according to a study involving samples from thousands of subjects.

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Researchers learn more about teen-age T.Rex

A team led by Holly Woodward Ballard, Ph.D., assistant professor of anatomy at Oklahoma State University Center for Health Sciences, studied two mid-sized tyrannosaur skeletons and concluded they were in fact teenage T.Rex and not a new pygmy species. They also studied the interior of the leg bones to determine age and how the dinosaurs grew and matured.

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Alzheimer 'tau' protein far surpasses amyloid in predicting toll on brain tissue

The results, published Jan. 1, 2020 in Science Translational Medicine, support researchers' growing recognition that tau drives brain degeneration in Alzheimer's disease more directly than amyloid protein, and at the same time demonstrates the potential of recently developed tau-based PET (positron emission tomography) brain imaging technology to accelerate Alzheimer's clinical trials and improve

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Heart attack discovery could give hope to people not able to be treated

As a result of myocardial infarction (heart attack), scar tissue forms that negatively affects heart function. Although it has long been known that heart attack scar is weak and can ultimately lead to heart failure, there are few drugs that can directly change this scar tissue. In new research, a team led by Sydney cardiologist and scientist A/Prof James Chong investigated the effects of a novel t

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Shrinking dinosaurs and the evolution of endothermy in birds

The evolution of endothermy represents a major transition in vertebrate history, yet how and why endothermy evolved in birds and mammals remains controversial. Here, we combine a heat transfer model with theropod body size data to reconstruct the evolution of metabolic rates along the bird stem lineage. Results suggest that a reduction in size constitutes the path of least resistance for endother

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Homeostasis and transitional activation of regulatory T cells require c-Myc

Regulatory T cell (T reg ) activation and expansion occur during neonatal life and inflammation to establish immunosuppression, yet the mechanisms governing these events are incompletely understood. We report that the transcriptional regulator c-Myc (Myc) controls immune homeostasis through regulation of T reg accumulation and functional activation. Myc activity is enriched in T regs generated du

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Hotspot swells and the lifespan of volcanic ocean islands

Volcanic ocean islands generally form on swells—seafloor that is shallower than expected for its age over areas hundreds to more than a thousand kilometers wide—and ultimately subside to form atolls and guyots (flat-topped seamounts). The mechanisms of island drowning remain enigmatic, however, and the subaerial lifespan of volcanic islands varies widely. We examine swell bathymetry and island dr

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Forecasted attribution of the human influence on Hurricane Florence

Changes in extreme weather, such as tropical cyclones, are one of the most serious ways society experiences the impact of climate change. Advance forecasted conditional attribution statements, using a numerical model, were made about the anthropogenic climate change influence on an individual tropical cyclone, Hurricane Florence. Mean total overland rainfall amounts associated with the forecasted

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The end of the lunar dynamo

Magnetic measurements of the lunar crust and Apollo samples indicate that the Moon generated a dynamo magnetic field lasting from at least 4.2 until 40 Ar/ 39 Ar studies showing that two lunar breccias cooled in a near-zero magnetic field (

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PRSS contributes to cetuximab resistance in colorectal cancer

Cetuximab improves the survival of patients with metastatic colorectal cancer. The main limitation is primary and secondary resistance, the underlying mechanism of which requires extensive investigation. We proved that PRSS expression levels are significantly negatively associated with the sensitivity of cancer cells to cetuximab. Detailed mechanistic analysis indicated that PRSS can cleave cetux

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CHK2-FOXK axis promotes transcriptional control of autophagy programs

Autophagy is an evolutionarily conserved catabolic process, which plays a vital role in removing misfolded proteins and clearing damaged organelles to maintain internal environment homeostasis. Here, we uncovered the checkpoint kinase 2 (CHK2)–FOXK (FOXK1 and FOXK2) axis playing an important role in DNA damage–mediated autophagy at the transcriptional regulation layer. Mechanistically, following

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Growing up Tyrannosaurus rex: Osteohistology refutes the pygmy "Nanotyrannus" and supports ontogenetic niche partitioning in juvenile Tyrannosaurus

Despite its iconic status as the king of dinosaurs, Tyrannosaurus rex biology is incompletely understood. Here, we examine femur and tibia bone microstructure from two half-grown T. rex specimens, permitting the assessments of age, growth rate, and maturity necessary for investigating the early life history of this giant theropod. Osteohistology reveals these were immature individuals 13 to 15 ye

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The energy landscape of -1 ribosomal frameshifting

Maintenance of translational reading frame ensures the fidelity of information transfer during protein synthesis. Yet, programmed ribosomal frameshifting sequences within the coding region promote a high rate of reading frame change at predetermined sites thus enriching genomic information density. Frameshifting is typically stimulated by the presence of 3' messenger RNA (mRNA) structures, but ho

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Control of protein function through oxidation and reduction of persulfidated states

Irreversible oxidation of Cys residues to sulfinic/sulfonic forms typically impairs protein function. We found that persulfidation (CysSSH) protects Cys from irreversible oxidative loss of function by the formation of CysSSO 1-3 H derivatives that can subsequently be reduced back to native thiols. Reductive reactivation of oxidized persulfides by the thioredoxin system was demonstrated in albumin

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mDia1/3-dependent actin polymerization spatiotemporally controls LAT phosphorylation by Zap70 at the immune synapse

The mechanism by which the cytosolic protein Zap70 physically interacts with and phosphorylates its substrate, the transmembrane protein LAT, upon T cell receptor (TCR) stimulation remains largely obscure. In this study, we found that the pharmacological inhibition of formins, a major class of actin nucleators, suppressed LAT phosphorylation by Zap70, despite TCR stimulation–dependent phosphoryla

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Epac1 inhibition ameliorates pathological angiogenesis through coordinated activation of Notch and suppression of VEGF signaling

In this study, we investigated the roles of Epac1 in pathological angiogenesis and its potential as a novel therapeutic target for the treatment of vasoproliferative diseases. Genetic deletion of Epac1 ameliorated pathological angiogenesis in mouse models of oxygen-induced retinopathy (OIR) and carotid artery ligation. Moreover, genetic deletion or pharmacological inhibition of Epac1 suppressed m

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Deficiency of TRPM2 leads to embryonic neurogenesis defects in hyperthermia

Temperature homeostasis is critical for fetal development. The heat sensor protein TRPM2 (transient receptor potential channel M2) plays crucial roles in the heat response, but its function and specific mechanism in brain development remain largely unclear. Here, we observe that TRPM2 is expressed in neural stem cells. In hyperthermia, TRPM2 knockdown and knockout reduce the proliferation of neur

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Structure of Drosophila melanogaster ARC1 reveals a repurposed molecule with characteristics of retroviral Gag

The tetrapod neuronal protein ARC and its Drosophila melanogaster homolog, dARC1, have important but differing roles in neuronal development. Both are thought to originate through exaptation of ancient Ty3/Gypsy retrotransposon Gag, with their novel function relying on an original capacity for self-assembly and encapsidation of nucleic acids. Here, we present the crystal structure of dARC1 CA and

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UPRER promotes lipophagy independent of chaperones to extend life span

Longevity is dictated by a combination of environmental and genetic factors. One of the key mechanisms to regulate life-span extension is the induction of protein chaperones for protein homeostasis. Ectopic activation of the unfolded protein response of the endoplasmic reticulum (UPR ER ) specifically in neurons is sufficient to enhance organismal stress resistance and extend life span. Here, we

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Protein tangles in Alzheimer's patients could help predict brain shrinkage

Research suggests tangles of tau could be used to predict how much shrinkage will occur and where Tangles of a protein found inside the brain cells of people with Alzheimer's disease can be used to predict future brain shrinkage, research suggests. In healthy people, a protein called tau is important in supporting the internal structure of brain cells. However, in those with Alzheimer's, chemical

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Australia, your country is burning – dangerous climate change is here with you now | Michael Mann

I am a climate scientist on holiday in the Blue Mountains, watching climate change in action After years studying the climate, my work has brought me to Sydney where I'm studying the linkages between climate change and extreme weather events. Prior to beginning my sabbatical stay in Sydney, I took the opportunity this holiday season to vacation in Australia with my family. We went to see the Grea

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In Australia Wildfires, Scenes Of Smoke, Sparks And Chaos

Fires are blazing across southeast Australia. Scenes of smoke, sparks and blazing red capture the destruction happening in towns around the country. (Image credit: Saeed Khan/AFP via Getty Images)

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Baidu secures licenses to test self-driving cars in Beijing

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2020: New Year's Celebrations Around the World

Fireworks, countdowns, and celebrations took place last night across the globe, as people bid farewell to the year 2019, and welcomed 2020. The first daybreak of the year brought some of those same revelers back out to take part in New Year's Day swims, or to reflect on the past and offer prayers for the new year. Gathered below, images of some of the varied ways people ushered in the year 2020.

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How (to attempt) to cure a hangover

Hangovers are a multifactorial equation that may be a little hard to understand, but the solution is always the same: misery. (ArturVerkhovetskiy via Deposit Photos /) Holiday parties, birthdays, reunions. These are all beautiful occasions to gather with our friends and loved ones, celebrate all the good things in our lives, raise our glasses to the bad ones, and drink for what's to come. It'd be

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Get the Sustainable Development Goals back on track

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03907-4 At the current rate, most of the goals will not be met. Here's how the 2030 agenda can be put back on the right path.

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AI shows promise for breast cancer screening

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03822-8 Could artificial intelligence improve the accuracy of screening for breast cancer? A comparison of the diagnostic performance of expert physicians and computers suggests so, but the clinical implications are as yet uncertain.

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Galaxy cluster illuminates the cosmic dark ages

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03893-7 Observations of a distant cluster of galaxies suggest that star formation began there only 370 million years after the Big Bang. The results provide key details about where and when the first stars and galaxies emerged in the Universe.

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International evaluation of an AI system for breast cancer screening

Nature, Published online: 01 January 2020; doi:10.1038/s41586-019-1799-6 An artificial intelligence (AI) system performs as well as or better than radiologists at detecting breast cancer from mammograms, and using a combination of AI and human inputs could help to improve screening efficiency.

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A better way for countries to track their progress on sustainability

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03908-3 A US–Chinese team shows how sustainability metrics can be improved.

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Tuberculosis vaccine finds an improved route

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03597-y A widely used vaccine against tuberculosis has now been shown to provide almost complete protection when injected intravenously. This is a striking improvement over vaccination through the typical intradermal route.

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Inverse transition of labyrinthine domain patterns in ferroelectric thin films

Nature, Published online: 01 January 2020; doi:10.1038/s41586-019-1845-4 The labyrinthine domain patterns formed in ultrathin films of ferroelectric oxides by subcritical quenching undergo an inverse phase transition to the less-symmetric parallel-stripe domain structure upon increasing temperature.

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Spectroscopic confirmation of a mature galaxy cluster at a redshift of 2

Nature, Published online: 01 January 2020; doi:10.1038/s41586-019-1829-4 The redshift of a seemingly mature galaxy cluster has been confirmed spectroscopically to be about 2 and photometry indicates that star formation began in the galaxies of the cluster at a redshift of about 12.

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The past and future of global river ice

Nature, Published online: 01 January 2020; doi:10.1038/s41586-019-1848-1 An analysis based on Landsat imagery shows that the extent of river ice has declined extensively over past decades and that this trend will continue under future global warming.

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Infrared spectroscopy finally sees the light

Nature, Published online: 01 January 2020; doi:10.1038/d41586-019-03866-w The reliance of infrared spectroscopy on light transmission limits the sensitivity of many analytical applications. An approach that depends on the emission of infrared radiation from molecules promises to solve this problem.

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