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nyheder2020februar01

A Trial Without Witnesses Is No Trial at All

It's a pathetic commentary on the state of American civics that the biggest issue of the Senate impeachment proceedings wasn't whether President Donald Trump asked Ukrainian President Volodymyr Zelensky for a favor. It wasn't whether the Senate would convict Trump; everyone knew from the outset that barring some Earth-shattering revelation, that wasn't going to happen. It wasn't even whether Trum

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Andrew Yang urges global ban on autonomous weaponry

submitted by /u/memes4_all [link] [comments]

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Ugens debat: Èn gang til med atomkraften

Et Rolls-Royce-ledet konsortium planlægger 15 mini- atomreaktorer i Storbritannien, den første om ni år. Den melding førte på ing.dk til endnu en debat om den omstridte energiform.

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US states join global push to ban animal-tested cosmetics

A growing number of U.S. states are considering a ban on the sale or import of cosmetics that have been tested on animals, as advocates argue testing products such as lotions, shampoos and makeup on rabbits, mice and rats is cruel and outdated.

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US states join global push to ban animal-tested cosmetics

A growing number of U.S. states are considering a ban on the sale or import of cosmetics that have been tested on animals, as advocates argue testing products such as lotions, shampoos and makeup on rabbits, mice and rats is cruel and outdated.

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Canberra heatwave breaks records amid wildfire threat

Temperatures in the Australian capital Canberra have set a new monthly record amid an advancing wildfire that has prompted a state of emergency declaration, weather service Meteo France said Sunday.

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Uruguayan project uses virtual money to encourage plastic recycling

On a hot summer's day in southern Uruguay, Graciela Martinez weighs her plastic waste before dropping it in a designated container by the beach.

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Relative of extinct tortoise located in Galapagos

A scientific expedition to the Galapagos Islands has discovered a tortoise with a "strong" genetic link to a presumed-extinct subspecies made famous by the popular Lonesome George, national park officials said Friday.

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How your clothes become microfibre pollution in the sea

From the polar ice cap to the Mariana Trench 10 kilometres below the waves, synthetic microfibres spat out by household washing machines are polluting oceans everywhere.

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Iran to launch observation satellite in 'coming days'

Iran is preparing to launch a new scientific observation satellite in the "coming days", the head of the country's national space agency told AFP on Saturday.

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Relative of extinct tortoise located in Galapagos

A scientific expedition to the Galapagos Islands has discovered a tortoise with a "strong" genetic link to a presumed-extinct subspecies made famous by the popular Lonesome George, national park officials said Friday.

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World Wetlands Day: Fostering global biodiversity and mitigating climate change

Though they make up less than 6% of Earth's surface, wetlands burst with biodiversity and play a key role in cleaning waterways, preventing floods, and sequestering carbon. For World Wetlands Day on February 2, researchers from McGill University are launching interactive story maps to illustrate the valuable contributions these ecosystems make to our planet.

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Hot pots helped ancient Siberian hunters survive the Ice Age

A new study shows that ancient Siberian hunters created heat resistant pots so that they could cook hot meals – surviving the harshest seasons of the ice age by extracting nutritious bone grease and marrow from meat.

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Coronavirus: Officials Eye First Suspected Case in New York City

A sample was being sent to the federal authorities for confirmation, the city Health Department said.

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China Increasingly Walled Off as Countries Seek to Stem Coronavirus

The number of deaths from the virus outbreak rose to 259 and the number of cases soared to nearly 12,000. Australia and Japan joined the United States in imposing travel restrictions.

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Is death still inevitable if we find a cure for aging.

And there's no heat death because there isn't a maximum entropy of universe if you consider gravity. submitted by /u/853240936 [link] [comments]

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Church of The All Seeing Algorithms

I propose we create a semi serious religion that treats all complex data systems as collectively a higher power. Yet in this system the highest power returns to humans in terms of programming, and cyber security awareness. We could even design our own funny hats, and how often does a fashion opportunity like that come around. We could offer prayers for the programmers, and the algorithms they des

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StyleGAN2: Near-Perfect Human Face Synthesis…and More

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

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Can we keep facial recognition from enabling a surveillance state?

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

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5 Soon-to-Be Trends in Artificial Intelligence And Deep Learning

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

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EU drops idea of facial recognition ban in public areas

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

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NOAA Leaders Privately Disowned Agency's Rebuke of Scientists Who Contradicted Trump

Newly released emails show officials at NOAA leaders told the agency's scientists it did "not approve or support" a controversial agency statement issued after the president falsely said that Alabama was at risk from Hurricane Dorian.

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2020 SkS Weekly Climate Change & Global Warming News Roundup #5

A chronological listing of news articles linked to on the Skeptical Science Facebook Page during the past week, i.e., Sun, Jan 26, 2020 through Sat, Feb 1, 2020 Editor's Pick Social tipping points are the only hope for the climate A new paper explores how to trigger them. Egg on the edge. Fine balance, tipping point etc. Risk, danger concept or metaphor. by Sarah2, Shutterstock At this point, the

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How Music Affects Your Brain: Music Therapy

submitted by /u/mabe918 [link] [comments]

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Travel bans plunge China into deepening isolation over coronavirus

Australia and other countries follow US in imposing near-total travel ban as foreign companies scale back activity The growing coronavirus epidemic is isolating China as other countries trying to ward off infection or contain their own smaller outbreaks bar entry to travellers from China, and companies including Apple scale down travel and business there. The UK announced on Saturday it had withdr

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'Outlier' victim profiles raise questions over the impact of coronavirus

The Chinese authorities have released details of some of the victims, and not all are elderly with pre-existing health conditions Most people who died from the new coronavirus appear to have been old, and many had pre-existing health problems, but Chinese government records list at least five victims under 60, with no prior medical issues detailed. These potential "outliers" – aged 36, 50, 53, 55

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WhatsApp stopper med at virke på ældre mobiler

Fra i dag vil besked-appen ikke fungere sammen med ældre styresystemer.

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Cracks in the Caribbean: "The Building Was Shaking Like Paper"

What's up with all the shaking in the Caribbean? It's business as usual on a geologic timescale — Read more on ScientificAmerican.com

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Did Animal Calls Start in the Dark?

One hypothesis says the ability to vocalize arose in nocturnal animals—and a new evolutionary analysis suggests there may be some truth to it. Christopher Intagliata reports.

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Maternity Leave—Not Higher Pay—Is the WNBA's Real Win

Maternity leave and parental benefits aren't usually the first things that come to mind when considering equality for women athletes. But the WNBA took a major step forward on that front last month, announcing a new collective-bargaining agreement with its players' association that will increase salaries significantly and guarantee players fully paid maternity leave for the first time in its hist

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Did Animal Calls Start in the Dark?

One hypothesis says the ability to vocalize arose in nocturnal animals—and a new evolutionary analysis suggests there may be some truth to it. Christopher Intagliata reports. — Read more on ScientificAmerican.com

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Apple shuts China retail stores due to coronavirus

Tech giant closes all mainland corporate offices, stores and contact centres for at least 8 days

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Frank Press, White House Science Adviser, Is Dead at 95

After serving as President Jimmy Carter's chief aide on scientific matters, he led the National Academy of Sciences for 12 years.

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Did Animal Calls Start in the Dark?

One hypothesis says the ability to vocalize arose in nocturnal animals—and a new evolutionary analysis suggests there may be some truth to it. Christopher Intagliata reports. — Read more on ScientificAmerican.com

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Amy Orben: 'To talk about smartphones affecting the brain is a slippery slope'

The psychologist talks about the widespread fear that smartphones are harmful to our wellbeing – and the difficulty of proving it Amy Orben is a research fellow at Emmanuel College and the MRC Cognition and Brain Sciences Unit at the University of Cambridge. She works in the field of experimental psychology and her speciality is analysing large-scale datasets to determine how social media and the

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What's Wrong with Physics

A physicist slams hype about multiverses, string theory, and quantum computers and calls for more diversity in his field — Read more on ScientificAmerican.com

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First major discovery in hydroformylation in 50 years

Chemists have discovered a new cationic cobalt bisphosphine hydroformylation catalyst system that is highly active and extremely robust.

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First major discovery in hydroformylation in 50 years

Chemists have discovered a new cationic cobalt bisphosphine hydroformylation catalyst system that is highly active and extremely robust.

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'One Cannot Shame a Depressed Person Into Getting Well'

Suicide Is Not an Act of Cowardice Earlier this month, the radio host John Ziegler tweeted that David Foster Wallace's 2008 suicide was selfish and cowardly. In response to these comments, Ken White argued on TheAtlantic.com that Ziegler's tweets resurrected a dangerous myth : "When you say that the victims of suicide are cowards, you're telling depressed people that they're weak and contemptible

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This Week's Awesome Tech Stories From Around the Web (Through February 1)

COMPUTING Alphabet Has a Second Secretive Quantum Computing Team Tom Simonite | Wired "[Alphabet's 'moonshot' incubator X's] small group of quantum researchers is not building its own quantum computing hardware. The group's leader is more interested in creating new algorithms and applications to run on quantum computers, and building software libraries that allow conventional coders to use the ex

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Space Photos of the Week: There's Nothing Like the Sun

You're gonna need shades for this one.

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The UK Exited the EU—and Is Leaving a 'Meme Ban' Behind

Though the UK initially supported the legislation, it does not plan to implement the EU Copyright Directive post-Brexit.

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Forget Meters and Feet

There's only one truly basic unit of length for earthlings — Read more on ScientificAmerican.com

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Weekend reads: A Harvard prof in handcuffs; an alleged PhD for grant scheme; unethical reviewer behavior outed

Before we present this week's Weekend Reads, a question: Do you enjoy our weekly roundup? If so, we could really use your help. Would you consider a tax-deductible donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: growing concerns — and a new retraction — in a … Continue reading

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Researchers Coax Levitating Glass Bead Into the Quantum World

Studying the quantum state of the universe is a challenging endeavor in part because objects only have detectable quantum properties on the smallest of scales. The larger something is, the harder it is to get it into a well-defined quantum state unobscured by environmental effects. A team of US-Austrian researchers has developed a new technique that could make quantum mechanics easier to study th

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A small coronavirus breakthrough could aid in the search for a vaccine

An Australian lab successfully reproduced the Wuhan coronavirus this week. (Nicola Sap De Mitri/Flickr CC/) Ian Christopher Davis is a professor of veterinary medicine at the Ohio State University. This story originally featured on The Conversation . See PopSci 's updated post for more Wuhan coronavirus news . Scientists at the Peter Doherty Institute for Infection and Immunity in Melbourne, Aust

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Windows 7 Gets One Last Update For the Road

A Silk Road guilty plea, a UN hack, and more of the week's top security news.

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Wil Wheaton Says Even Muggles Will Love 'Star Trek: Picard'

The man who played Wesley Crusher is now hosting an aftershow for the CBS All Access series.

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1921: Sådan beregnes den optimale bladfjeder til jernbanevogne

Afkæringen af fjederbladenes ender er afgørende for, hvor stor belastning de kan optage, viser Ingeniørens beregninger anno 1921.

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Wiring Minds

Successfully applying AI to biomedicine requires innovators trained in contrasting cultures — Read more on ScientificAmerican.com

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Rise of Robot Radiologists

Deep-learning algorithms are peering into MRIs and x-rays with unmatched vision, but who is to blame when they make a mistake? — Read more on ScientificAmerican.com

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Electronic Health Records Need a Shot in the Arm

Digitization of patient charts was supposed to revolutionize medical practice. Artificial intelligence could help unlock its potential — Read more on ScientificAmerican.com

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How Artificial Intelligence Will Change Medicine

— Read more on ScientificAmerican.com

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Hunting for New Drugs with AI

The pharmaceutical industry is in a drug-discovery slump. How much can AI help? — Read more on ScientificAmerican.com

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On Navigation

— Read more on ScientificAmerican.com

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Wiring Minds

Successfully applying AI to biomedicine requires innovators trained in contrasting cultures — Read more on ScientificAmerican.com

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Rise of Robot Radiologists

Deep-learning algorithms are peering into MRIs and x-rays with unmatched vision, but who is to blame when they make a mistake? — Read more on ScientificAmerican.com

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Electronic Health Records Need a Shot in the Arm

Digitization of patient charts was supposed to revolutionize medical practice. Artificial intelligence could help unlock its potential — Read more on ScientificAmerican.com

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How Artificial Intelligence Will Change Medicine

— Read more on ScientificAmerican.com

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Hunting for New Drugs with AI

The pharmaceutical industry is in a drug-discovery slump. How much can AI help? — Read more on ScientificAmerican.com

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Top geneticist 'should resign' over his team's laboratory fraud

Professor responsible for 'reckless' failure to properly oversee researchers A row over scientific fraud at the highest level of British academia has led to calls for one of the country's leading geneticists and highest-paid university chiefs to leave his posts. David Latchman, professor of genetics at University College London and master of Birkbeck, University of London – a post that earns him

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Asteroid That Killed the Dinosaurs Was Great for Bacteria

The smoldering crater left by the apocalyptic space rock became a nice home for blue-green algae within years of the impact.

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Solar Orbiter completes preparation for launch

With all testing complete, Europe's audacious mission to our star is placed atop its launch rocket.

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What Will the World Look Like in 2030?

In its first few weeks, the new decade has already brought a number of big surprises. Events such as Qassem Soleimani's assassination and Vladimir Putin's announcement of a new Russian constitution, which few political observers would have predicted in the last days of 2019, are reshaping the world. When people imagine the future, they tend to assume that most things will stay the same, or that t

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The Best Meal Kit Delivery Services (2020): Blue Apron, Yumble, and More

Considering using meal kits? I spent weeks cooking with boxed ingredients shipped to my door. Here are the best.

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Sharon Salzberg – On Balance

Since 1974, Sharon Salzberg has been sharing ancient meditation and mindfulness practices in a voice the contemporary West can understand. Her warm, funny, down-to-earth books, dharma talks, and guided meditations have helped struggling meditators worldwide establish a strong practice and reduce the suffering in their lives. In this episode Sharon sits down with Jason to consider whether it's ok

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California Can Be Carbon Neutral in 25 years–with Drastic Action

To meet its ambitious goal, the state will have to pull carbon from the atmosphere and tackle emissions from agriculture and landfills, a new report says — Read more on ScientificAmerican.com

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The Assistant Is a Subtle Horror Film for the #MeToo Era

For much of its running time, The Assistant is devoted to routine. Kitty Green's new film is short, quiet, and often monotonous, focusing on the mundane tasks that make up a workday for Jane (played by Julia Garner). She makes coffee, answers emails, and washes dishes; she arrives at the crack of dawn to clean out her boss's office, down to the mysterious stains on his couch. Many of the requirem

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*BoJack Horseman* Made It Easier to Get Out of Bed

The Netflix cartoon—for six seasons a lifeline and a gift—goes out with a signature emotional wallop.

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Vancouver Wants to Avoid Other Cities' Mistakes With Uber and Lyft

Canadian officials approve ride-hailing long after it's become a staple elsewhere, with tough rules on fares and driver licensing.

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15 Best Deals on Tech, Home, and Travel Gear (February 2020)

We found the best deals for watching TV, getting online, getting away, and making your home smarter.

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Wuhan Coronavirus 'Super-Spreaders' Could Be Wildcards

Tracking the spread of disease requires precision and math. But super-spreaders, who transmit germs faster and further than other patients, can confound the model.

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Youth Football Is a Moral Abdication

In the 1890s, the Chicago Tribune began to sound the alarm about a dangerous new sport. Unlike in baseball, cricket, or other popular activities of the day, teams of young athletes repeatedly collided with one another as a key component of the emerging game. The quest for victory resulted in frequent impacts to opposing players that would "strain their hips, break their noses, and concuss their b

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Spider biologist denies suspicions of widespread data fraud in his animal personality research

Behavioral ecologists are in turmoil as dozens of research papers involving an expert on social spiders draw scrutiny

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Ingeniør efteruddannede sig i leg: Vi skal lære at lege på jobbet

PLUS. Børns leg kan inspirere til mere kreative løsninger og skabe større arbejdsglæde, mener ingeniør Ann-Kathrin Scholtyssek, som har suppleret sin uddannelse med en master i Design og leg.

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Should social media platforms censor hate speech?

Should social media companies censor hate speech on their platforms? Nadine Strossen, law professor and former president of the ACLU, says that while tech giants have no legal obligation to respect First Amendment rights, she urges them to allow as much free speech as is feasible. Those who advocate censorship on social media worry about the harm caused by hate or disinformation, but they never e

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Mathematicians Solve an Enduring '42' Problem Using Planetary Supercomputer

There are new things to know about the number 42.

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The One Way That Iowa Looks Like the Democratic Party

DES MOINES—It's no secret that Iowa has been only lightly touched by the increasing racial diversity that has reconfigured the Democratic Party nationwide. But while the demographic change evident in the Democratic coalition has largely bypassed Iowa, the state has been swept up in the party's most important geographic change. Democrats in Iowa are improving their performance in the urban centers

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This is absolutely Wild!

submitted by /u/Tyler-Danger [link] [comments]

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Memphis Meats Raises $161 Million to make Cell-Based Meat

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

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Nanoparticle chomps away plaques that cause heart attacks

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

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Unusual cyclones over the last 2 years created Africa's locust plague

East Africa is being ravaged by vast swarms of desert locusts, which have taken advantage of ideal breeding conditions created by unusually heavy rainstorms

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Astrid rykker ud, når epidemien raser: 'Uden vores hjælp får de ingen behandling'

Ni gange har Astrid Opstrup været udsendt for Læger uden Grænser.

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Researchers make strides in race to create coronavirus vaccine

International teams accelerate efforts to find effective immunisation method Coronavirus – latest updates Researchers racing to produce a vaccine for the Wuhan coronavirus believe they may have taken significant steps towards finding an effective method of immunisation. At least three pharmaceutical companies, as well as teams of researchers around the world, have been working on different approa

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Coronavirus sparks racism fears

People of Asian descent face discrimination as infection spreads

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Ingen grund til panik: Vi er godt rustet til en virus-epidemi

Vi har en klar plan i Danmark, siger Sundhedsstyrelsens direktør.

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The Russian Conspiracy Theory That Won't Die

Precisely 61 years ago, a band of skiers trekking through the Ural Mountains stashed food, extra skis, and a well-worn mandolin in a valley to pick up on the way back from their expedition. In a moment of lightheartedness, one drew up a fake newspaper with headlines about their trip: "According to the latest information, abominable snowmen live in the northern Urals." Their excess equipment store

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Coronavirus Live Updates: Toll Passes 250, and Apple Shuts China Stores

Australia joined the United States in temporarily barring foreigners who have recently visited China. And North Korea's leader sent a letter of condolence to his Chinese counterpart.

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The Remarkable Legacy of Spitzer—the Telescope and the Man

For 16 years, NASA's Spitzer Space Telescope opened our eyes and made us all more than human.

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Så gör du den bästa espresson enligt matematikerna

Några matematiker, fysiker och kemister har räknat ut hur den bästa espresson ska bryggas. Deras slutsats är att man borde använda mindre bönor och mala dem grövre. Se varför i videon ovan.

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Plaströret som hjälper skadade nerver att växa ihop

Ett litet biologiskt nedbrytbart plaströr ska enligt en ny studie kunna hjälpa trasiga nerver att växa samman. Starta videon för att se hur det ser ut.

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Köttätande kan öka risk för urinvägsinfektion

Vegetarianer drabbas mer sällan av urinvägsinfektion än köttätare, enligt en ny vetenskaplig studie.

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Coronavirus freezes return of China's migrant workers

Outbreak disrupts labour markets as workers rethink travelling far from home to find jobs

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NASA Funds Demonstration of Assembly and Manufacturing in Space

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

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Plans revealed for hybrid fusion-fission thorium reactor.

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

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Artists Who Paint With Their Feet Have Unique Brain Patterns

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

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A self-adjusting platinum surface for acetone hydrogenation [Engineering]

We show that platinum displays a self-adjusting surface that is active for the hydrogenation of acetone over a wide range of reaction conditions. Reaction kinetics measurements under steady-state and transient conditions at temperatures near 350 K, electronic structure calculations employing density-functional theory, and microkinetic modeling were employed to study this…

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Unsaturated nanoporomechanics [Engineering]

Although some important advances in the modeling of sorption and hygrothermal deformations of nanoporous materials such as hydrated cement paste, shale, coal, and some other rocks and soils have already been made, a comprehensive nanoporomechanics theory remains elusive. Here we strive to formulate it based on Gibb's free energy of…

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Anisotropic viscoelastic phase separation in polydisperse hard rods leads to nonsticky gelation [Chemistry]

Spinodal demixing into two phases having very different viscosities leads to viscoelastic networks—i.e., gels—usually as a result of attractive particle interactions. Here, however, we demonstrate demixing in a colloidal system of polydisperse, rod-like clay particles that is driven by particle repulsions instead. One of the phases is a nematic liquid…

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Selective targeting of nanomedicine to inflamed cerebral vasculature to enhance the blood-brain barrier [Chemistry]

Drug targeting to inflammatory brain pathologies such as stroke and traumatic brain injury remains an elusive goal. Using a mouse model of acute brain inflammation induced by local tumor necrosis factor alpha (TNFα), we found that uptake of intravenously injected antibody to vascular cell adhesion molecule 1 (anti-VCAM) in the…

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Pressure sensing through Piezo channels controls whether cells migrate with blebs or pseudopods [Cell Biology]

Blebs and pseudopods can both power cell migration, with blebs often favored in tissues, where cells encounter increased mechanical resistance. To investigate how migrating cells detect and respond to mechanical forces, we used a "cell squasher" to apply uniaxial pressure to Dictyostelium cells chemotaxing under soft agarose. As little as…

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Cofilin-induced structural changes in actin filaments stay local [Commentaries]

Actin is a major cytoskeletal protein that plays crucial roles in a number of biological events involving force generation and shape changes. Actin monomers are polymerized into actin filaments, which serve as a core of the actin cytoskeleton together with many associated proteins. Although purified actin can be spontaneously polymerized…

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Coronavirus latest updates: US bans foreign arrivals from China as deaths hit 259 – live news

Death toll rises, with 11,000 confirmed cases of infection in China. Follow the latest developments US bars foreign nationals who have recently travelled to China 'The city is suffocating': diary of the Wuhan lockdown Two people in Britain test positive for coronavirus Help or hindrance? How Chinese politics affected response Share your stories 1.39am GMT The Global Times, Communist party-control

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Australia joins US in barring foreigners who recently visited China

Restrictions come as coronavirus death toll rises

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Amazon rainforest: The 90-year-old trying to stop destruction

Newsnight was given rare access to a once-in-a-generation meeting of indigenous groups trying to save the Amazon.

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Hot pots helped ancient Siberian hunters survive the Ice Age

A new study shows that ancient Siberian hunters created heat resistant pots so that they could cook hot meals – surviving the harshest seasons of the ice age by extracting nutritious bone grease and marrow from meat.

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Could you handle the most remote campsite on Earth?

Take a look inside an Antarctic campsite and find out how they survive.

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The Atlantic Politics Daily: The Impeachment Trial Nears Its End

It's Friday, January 31. The United Kingdom officially exited the European Union on Friday. How will Brits remember Brexit Day? In the rest of today's newsletter: The Senate votes against more witness testimony. Plus: The publication that wants to be the anti- Breitbart . * « TODAY IN POLITICS » (JONATHAN ERNST / REUTERS) Impeachment is nearing its end. After nearly five months, countless hours o

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CPR, by Default

When very old patients suffer cardiac arrest, doctors usually try to revive them — even if they were already near death.

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Crab-shell and seaweed compounds spin into yarns for sustainable and functional materials

Biobased fibers are made from two renewable marine resources and with promise in advanced applications, in wovens and medical materials, among others. The threads draw strength from the crab chitin component and flexibility from seaweed alginate.

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Spider biologist denies suspicions of widespread data fraud in animal personality research

Behavioral ecologists are in turmoil as dozens of research papers involving an expert on social spiders draw scrutiny

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Mining coronavirus genomes for clues to the outbreak's origins

Theories abound about how the virus that's now rampant in China made its way from bats (almost certainly) to humans

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Bonnie Burstow, Psychotherapist Who Rejected Psychiatry, Dies at 74

A self-described "feminist therapist," she was a prominent voice in the anti-psychiatry movement, contending that the field is patriarchal.

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The End of What, Exactly?

The impeachment trial of President Donald Trump drew its last breath of suspense just after 1 p.m. today. That's when Senator Lisa Murkowski, Republican of Alaska, and the Democrats' sole remaining hope for subpoenaing witnesses or documents, announced her unwillingness to do so in a withering attack on the integrity of the institution that her party leads. "Given the partisan nature of this impe

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