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Nyheder2020december24

Finland ends homelessness and provides shelter for all in need
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People are printing Hair and skin with the help of 3D printing
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2021: What's Next ?
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Is there anyone or organization who is currently working on significant life extension for humans
I am aware of de grey but I was curious of other ones who are also trying to achieve longevity or reversing aging or stopping/slow aging. Thanks in advance for the responses submitted by /u/trap_344 [link] [comments]
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Automation: How beneficial is AI to productivity?
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COVID-19 will be 'with us for the next 10 years', warns vaccine chief
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Inside Earth's Doomsday Seed Vault
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Researchers find hydrogen-supported life beneath glaciers
submitted by /u/Memetic1 [link] [comments]
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We need a social credit system for Corporations
Things like Seaseme Credit are a nightmare for individual liberty, however might we turn that same type of technology back on corporations. This would enable a consumer to check a corporations credit before deciding to do business with them. submitted by /u/Memetic1 [link] [comments]
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High-resolution 3D printing in seconds
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World Will Witness 90% Wildlife Loss By 2050 Due To Food Habits
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World's first 350 km/h freight train developed
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India Pushes to Increase Domestic Manufacturing of Solar Parts
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DeepMind Introduces Algorithms for Causal Reasoning in Probability Trees
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MIT Discovery Offers New Promise for Nonsilicon Computer Transistors
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The Christmas Crisis
Updated at 9:14 p.m. ET on December 29, 2020 I got a call on a Wednesday morning from a number with a Long Island area code. Long Island? I picked up, because why not. "Emma? This is Santa speaking." My caller, it turned out, was not just Santa but the National Santa™, a.k.a. Santa Tim Connaghan, the Big Daddy of American Saint Nicks. Santa Tim's website features pictures of him posing with Giada
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The Guardian and the "Cult" of Online Chiropractic
Over the past few years, a handful of chiropractors have gone viral because of aggressive neck adjustments that make a loud crack and provide a quick thrill for viewers of their YouTube videos. A recent article in The Guardian discussed the phenomenon, but it doesn't go far enough. The post The Guardian and the "Cult" of Online Chiropractic first appeared on Science-Based Medicine .
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Can Disaster Movies Survive a Pandemic?
Two new disaster movies, Greenland and Songbird, came out this month. Whether they succeed or not may change the genre's fate.
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Discovery of 'cryptic species' shows Earth is even more biologically diverse
Excitement as DNA barcoding technique leads to unmasking of new species tempered with fear that some are already at risk of extinction Counting the species: how DNA barcoding is rewriting the book of life Read more in our series Biodiversity: what happened next? A growing number of "cryptic species" hiding in plain sight have been unmasked in the past year, driven in part by the rise of DNA barco
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A good vintage: science suggests appreciation of wine grows with age
Changes in composition and production of saliva as people grow older appears to intensify perception of aromas Just as a bottle of wine improves with age, so may our ability to pick out the subtleties of its scent. Changes in the composition of our saliva and how much of it we produce appears to intensify our perception of smokey and peppery aromas in red wine, new research suggests. The findings
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What I Have Seen Running the FacesOfCOVID Twitter Feed
Nearly every day for the past nine months, I've spent the last few hours before I go to sleep or the first few hours after I wake up in the morning reading news stories about and personal remembrances of those we've lost to the coronavirus pandemic. I then share the stories on the FacesOfCOVID Twitter feed, which I run. I make sure to read everything from start to finish, striving for accuracy as
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Soul Is Another Cerebral Winner From Pixar
If Disney's animated-movie formula relies on tales of heroes and princesses, of villains destroyed and personal freedom achieved, then Pixar's formula is far more mundane. For decades, the computer-animation studio has made movies that portray transcendent feelings and experiences as the products of ordinary jobs, performed diligently by strange little beings behind the scenes. Monsters, Inc. , i
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The best space stories of 2020
The pandemic may have brought life to a screeching halt, but at least we can gaze deeply into a cool spot on a raging nuclear fireball. (NSO/AURA/NSF/) There's no way to sugarcoat it; 2020 has been rough. But despite the stagnation and turmoil on Earth, some researchers and organizations kept their eyes on the skies. Physicists felt ripples from a collision between black holes so big they shouldn
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The Master Guide to Setting Up All Your New Devices
If you were just gifted a new phone, smartwatch, or home entertainment device, here's what to do with it.
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Covid's 'viral tsunami' floods California's hospitals
There are too few nursing staff and emergency beds to cope with the Golden State's coronavirus surge
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Det ved vi. Det jagter vi: Er der liv på Mars?
PLUS. Mars har haft floder, blå himmel og betingelser for liv. Nu er en armada af fartøjer på vej mod planeten for at jagte 'ekstraordinære beviser for ekstraordinære påstande'.
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Podcast special: Hvad leder forskerne efter i deres søgen efter livstegn på Mars?
Til februar sætter Nasa-roveren Perseverance forhåbentlig hjulene blidt ned på Mars. Hør historien om den mangeårige søgen efter spor af liv på den røde planet – og hvad vi håber på at finde.
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Bliver din hud tør og grå om vinteren? Særligt et råd gør en forskel
Den grå og tørre hud skyldes, at fedtstofferne forsvinder.
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Book Review: One Giant Leap for Geopolitics
In "Operation Moonglow," Smithsonian historian Teasel Muir-Harmony argues that the Apollo missions were driven less by a thirst for scientific exploration than by superpower politics. In a time when America's global reputation had sunk and the USSR's had gained new heights, the U.S. was desperate for a win.
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How did scientists tackle Covid so quickly? Because they pulled together | Charlotte Summers
From observational studies to rapid development of vaccines, knowledge-sharing was a key feature of science in 2020 The raw numbers around Covid-19 are simply incredible when you consider that this was a disease almost no one had heard of in December 2019. At the time of writing, this year about 240,000 people in the UK have been admitted to hospital with Covid-19 , and more than 70,000 people ha
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Fishermen Team Up With Food Banks To Help Hungry Families
The COVID-19 crisis has exacerbated food insecurity and stretched an already-strained fishing industry. New partnerships with food banks give fisherman income and provide food for those in need. (Image credit: April Fulton for NPR)
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How Covid-19 Vaccine Launch Evokes Memories of Polio Era
Many older Americans, shut in during this year's pandemic, share haunting recollections from the polio era of their childhood.
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How 'heat death' will destroy the universe
The expansion of the universe is accelerating as the force of dark energy wins out over the pull of all the universe's collective gravity. As every object in space moves farther and farther away from all other objects in space, the universe will reach a state of maximum entropy, and 'heat death' will ensue. As astrophysicist Dr. Katie Mack points out, heat death is not actually a hot phenomenon—i
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Videnskabens Top-5: Vejen til længere og lettere hængebroer
PLUS. Ved brug af topologioptimering kan forbruget af materialer til brodækket i hængebroer reduceres med mere end en fjerdedel.
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Learning how to walk again during the pandemic forced me to live in the moment | Hollie-Anne Brooks
To recover from my functional neurological disorder, I had to learn to 'reset' my mind Restrictions have come to define many people's lives this year – understandably frustration has been vented over cancelled plans or the inability to travel. But for me, this was business as usual. For the past two and a half years, I had been unable to walk due to a condition called functional neurological diso
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I'm sorry, forgive me. | A Project About Emotion
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Quiz: Har du koll på klimatbegreppen?
I dokumentärfilmen "Greta" går klimataktivisten Greta Thunberg hårt åt politiker och journalister för att vara okunniga inom grundläggande klimatforskning. Kan du klimatbegreppen? Spela videon för att testa dig själv!
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Klimatpionjärerna – forskarna som tidigt insåg att planeten värms upp
De första varningarna om växthuseffektens påverkan på klimatet kom för över 150 år sedan. Spela videon för att se vad klimatforskarna har sagt i mer än ett sekel.
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Could an AI 'SantaNet' Destroy The World?
He knows if you've been bad or good.
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Astronaut Scott Kelly: How to survive a year in space
Record-breaking astronaut Scott Kelly talks about living in space and his desire to go back.
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Staff at UK coronavirus testing lab hit by outbreak of disease
Whistleblower claims safety measures breached at Milton Keynes facility where 20 staff affected Coronavirus – latest updates See all our coronavirus coverage Staff at the UK's biggest testing lab in Milton Keynes have been hit by an outbreak of coronavirus as the country struggles to contain the soaring number of infections. Cases have been reported in three of the four scientific teams at Milton
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WATCH: Octopuses Punch Fish, Sometimes For No Apparent Reason
Researchers discovered that an octopus might punch a fish when both are hunting. Although some of the thrown punches can be explained, others remain a mystery.
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The Atlantic Daily: Our Favorite Things of 2020
Every weekday evening, our editors guide you through the biggest stories of the day, help you discover new ideas, and surprise you with moments of delight. Subscribe to get this delivered to your inbox . In a slog of a year, new releases brought structure to the calendar. (Remember the Tiger King phase of quarantine? Or the Folklore one?) But what projects stood out the most? The critics on our C
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The Earth is Flat: A Psychology Perspective
Living in a world of "alternative facts" and misinformation is exhausting. A casual scroll through Facebook can spiral into a tiresome fact checking escapade and an emotional rollercoaster: "You mean we could have been free from COVID if we had all just injected ourselves with bleach?!" Misinformation is defined as false information that is spread, […]
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Your e-reader can display more than just books
If it be transformed into a PDF, you can open it on your e-reader. ( freestocks / Unsplash/) If you own an e-reader , you know how useful it can be when you just can't decide which volume of your enormous library to take with you on vacation. But your device can do much more than display e-books—websites, documents, comic books, and other file types are within the scope of these lightweight devic
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Stand Against the Coming Tidal Wave of Deceit
President Donald Trump uses his pardon power as an instrument of personal ambition. He pardons people who have lied to protect him, and people who have expressed loyalty to him. Yesterday, he pardoned Charles Kushner, whose son is married to one of Trump's daughters. More Trump-family pardons may soon be coming. Public-spirited citizens are understandably angry about these abuses. As the former f
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Johnson refuses to rule out national lockdown as UK death toll rises by 574
Total number of UK deaths from Covid-19 now 69,625, with further 39,036 daily cases recorded See all our coronavirus coverage Boris Johnson has refused to rule out another national lockdown as the UK death toll from coronavirus rose by 574, with a further 39,036 cases. Thursday's figure, covering people who died within 28 days of testing positive for Covid-19, brings the total number of UK deaths
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The Chimney Chute Rocket Boost Challenge | Rocket Around the Xmas Tree
Stream Full Episodes of Rocket Around the Xmas Tree: https://go.discovery.com/tv-shows/rocket-around-the-xmas-tree Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https://www.facebook.com/Discovery Follow Us on Twitter: https://twitter.com/Discovery From: Discov
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COVID-19 severity affected by proportion of antibodies targeting crucial viral protein
COVID-19 antibodies preferentially target a different part of the virus in mild cases of COVID-19 than they do in severe cases, and wane significantly within several months of infection, according to a new study.
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Mathematical modeling can help balance economy, health during pandemic
Using mathematical modeling, new interdisciplinary research determines the best course of action when it comes to walking the line between economic stability and the best possible health outcomes.
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Great Lakes advocates hope new administration will take on climate change
With the Earth on track to finish out another year among the warmest on record and the impact of climate change mounting around the globe, advocates around the Great Lakes are looking ahead to what a new administration could mean for the Midwest, the region containing one of the world's largest freshwater sources.
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The Decades-Long Struggle to Protect Venice From Being Swallowed by the Sea
After years of corruption, cost overruns and delays, Venice has finally unveiled its long-awaited flood control system. It can stop today's high tides, but can it stand up to climate change?
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Ideally, we won't remember the 2020 holidays
This unusual—and painful—holiday season may fade from our collective memory, say researchers. That's actually the best case scenario , they explain. "…we think collective memory for the pandemic itself is likely to fade quickly for most people." Henry L. Roediger , professor of psychological & brain sciences and James Wertsch , professor in the anthropology department have spent over 25 years inv
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Landmark climate policy faces growing claims of environmental racism
When California passed its landmark cap-and-trade law in 2006, supporters were hopeful that the program would provide the template for other states—and eventually the federal government—to solve the climate crisis.
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Korean artificial sun sets the new world record of 20-sec-long operation at 100 million degrees
The Korea Superconducting Tokamak Advanced Research (KSTAR), a superconducting fusion device also known as the Korean artificial sun, set the new world record as it succeeded in maintaining the high temperature plasma for 20 seconds with an ion temperature over 100 million degrees (Celsius).
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Recruitment of pro-IL-1{alpha} to mitochondrial cardiolipin, via shared LC3 binding domain, inhibits mitophagy and drives maximal NLRP3 activation [Immunology and Inflammation]
The balance between NLRP3 inflammasome activation and mitophagy is essential for homeostasis and cellular health, but this relationship remains poorly understood. Here we found that interleukin-1α (IL-1α)–deficient macrophages have reduced caspase-1 activity and diminished IL-1β release, concurrent with reduced mitochondrial damage, suggesting a role for IL-1α in regulating this balance….
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Mechanistic insights into the synergistic activation of the RXR-PXR heterodimer by endocrine disruptor mixtures [Biochemistry]
Humans are chronically exposed to mixtures of xenobiotics referred to as endocrine-disrupting chemicals (EDCs). A vast body of literature links exposure to these chemicals with increased incidences of reproductive, metabolic, or neurological disorders. Moreover, recent data demonstrate that, when used in combination, chemicals have outcomes that cannot be predicted from…
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Science and Culture: Astronomer-turned-filmmaker strives to ignite an interest in space [Astronomy]
For scientists at NASA's Jet Propulsion Laboratory in Pasadena, CA, the night of January 3, 2004 entailed six minutes of nerve-wracking terror. Around 8:30 PM Pacific Time, the Spirit rover began its plunge to the Martian surface, as an audience of engineers and others—temporarily unable to receive any communication from…
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Extrasynaptic acetylcholine signaling through a muscarinic receptor regulates cell migration [Cell Biology]
Acetylcholine (ACh) promotes various cell migrations in vitro, but there are few investigations into this nonsynaptic role of ACh signaling in vivo. Here we investigate the function of a muscarinic receptor on an epithelial cell migration in Caenorhabditis elegans. We show that the migratory gonad leader cell, the linker cell…
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Staphylococcus aureus binds to the N-terminal region of corneodesmosin to adhere to the stratum corneum in atopic dermatitis [Microbiology]
Staphylococcus aureus colonizes the skin of the majority of patients with atopic dermatitis (AD), and its presence increases disease severity. Adhesion of S. aureus to corneocytes in the stratum corneum is a key initial event in colonization, but the bacterial and host factors contributing to this process have not been…
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Historical natural kinds and mineralogy: Systematizing contingency in the context of necessity [Earth, Atmospheric, and Planetary Sciences]
The advancement of science depends upon developing classification protocols that systematize natural objects and phenomena into "natural kinds"—categorizations that are conjectured to represent genuine divisions in nature by virtue of playing central roles in the articulation of successful scientific theories. In the physical sciences, theoretically powerful classification systems, such as…
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The genetic structure and adaptation of Andean highlanders and Amazonians are influenced by the interplay between geography and culture [Anthropology]
Western South America was one of the worldwide cradles of civilization. The well-known Inca Empire was the tip of the iceberg of an evolutionary process that started 11,000 to 14,000 years ago. Genetic data from 18 Peruvian populations reveal the following: 1) The between-population homogenization of the central southern Andes…
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Guanine, a high-capacity and rapid-turnover nitrogen reserve in microalgal cells [Biophysics and Computational Biology]
Nitrogen (N) is an essential macronutrient for microalgae, influencing their productivity, composition, and growth dynamics. Despite the dramatic consequences of N starvation, many free-living and endosymbiotic microalgae thrive in N-poor and N-fluctuating environments, giving rise to questions about the existence and nature of their long-term N reserves. Our understanding of…
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Cortical tension overrides geometrical cues to orient microtubules in confined protoplasts [Biophysics and Computational Biology]
In plant cells, cortical microtubules (CMTs) generally control morphogenesis by guiding cellulose synthesis. CMT alignment has been proposed to depend on geometrical cues, with microtubules aligning with the cell long axis in silico and in vitro. Yet, CMTs are usually transverse in vivo, i.e., along predicted maximal tension, which is…
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Pharmacoproteomics pinpoints HSP70 interaction for correction of the most frequent Wilson disease-causing mutant of ATP7B [Cell Biology]
Pathogenic mutations in the copper transporter ATP7B have been hypothesized to affect its protein interaction landscape contributing to loss of function and, thereby, to hepatic copper toxicosis in Wilson disease. Although targeting mutant interactomes was proposed as a therapeutic strategy, druggable interactors for rescue of ATP7B mutants remain elusive. Using…
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A long noncoding RNA, LncMyoD, modulates chromatin accessibility to regulate muscle stem cell myogenic lineage progression [Developmental Biology]
Epigenetics regulation plays a critical role in determining cell identity by controlling the accessibility of lineage-specific regulatory regions. In muscle stem cells, epigenetic mechanisms of how chromatin accessibility is modulated during cell fate determination are not fully understood. Here, we identified a long noncoding RNA, LncMyoD, that functions as a…
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Separating direct and indirect effects of rising temperatures on biogenic volatile emissions in the Arctic [Earth, Atmospheric, and Planetary Sciences]
Volatile organic compounds (VOCs) are released from biogenic sources in a temperature-dependent manner. Consequently, Arctic ecosystems are expected to greatly increase their VOC emissions with ongoing climate warming, which is proceeding at twice the rate of global temperature rise. Here, we show that ongoing warming has strong, increasing effects on…
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Geochemical transition zone powering microbial growth in subsurface sediments [Earth, Atmospheric, and Planetary Sciences]
No other environment hosts as many microbial cells as the marine sedimentary biosphere. While the majority of these cells are expected to be alive, they are speculated to be persisting in a state of maintenance without net growth due to extreme starvation. Here, we report evidence for in situ growth…
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Complex subsurface hydrothermal fluid mixing at a submarine arc volcano supports distinct and highly diverse microbial communities [Earth, Atmospheric, and Planetary Sciences]
Hydrothermally active submarine volcanoes are mineral-rich biological oases contributing significantly to chemical fluxes in the deep sea, yet little is known about the microbial communities inhabiting these systems. Here we investigate the diversity of microbial life in hydrothermal deposits and their metagenomics-inferred physiology in light of the geological history and…
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Why wild giant pandas frequently roll in horse manure [Ecology]
Attraction to feces in wild mammalian species is extremely rare. Here we introduce the horse manure rolling (HMR) behavior of wild giant pandas (Ailuropoda melanoleuca). Pandas not only frequently sniffed and wallowed in fresh horse manure, but also actively rubbed the fecal matter all over their bodies. The frequency of…
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Genome evolution of blind subterranean mole rats: Adaptive peripatric versus sympatric speciation [Evolution]
Speciation mechanisms remain controversial. Two speciation models occur in Israeli subterranean mole rats, genus Spalax: a regional speciation cline southward of four peripatric climatic chromosomal species and a local, geologic-edaphic, genic, and sympatric speciation. Here we highlight their genome evolution. The five species were separated into five genetic clusters by…
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Individualistic evolutionary responses of Central African rain forest plants to Pleistocene climatic fluctuations [Evolution]
Understanding the evolutionary dynamics of genetic diversity is fundamental for species conservation in the face of climate change, particularly in hyper-diverse biomes. Species in a region may respond similarly to climate change, leading to comparable evolutionary dynamics, or individualistically, resulting in dissimilar patterns. The second-largest expanse of continuous tropical rain…
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Intergenerational transfer of DNA methylation marks in the honey bee [Evolution]
The evolutionary significance of epigenetic inheritance is controversial. While epigenetic marks such as DNA methylation can affect gene function and change in response to environmental conditions, their role as carriers of heritable information is often considered anecdotal. Indeed, near-complete DNA methylation reprogramming, as occurs during mammalian embryogenesis, is a major…
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Fruiting body form, not nutritional mode, is the major driver of diversification in mushroom-forming fungi [Evolution]
With ∼36,000 described species, Agaricomycetes are among the most successful groups of Fungi. Agaricomycetes display great diversity in fruiting body forms and nutritional modes. Most have pileate-stipitate fruiting bodies (with a cap and stalk), but the group also contains crust-like resupinate fungi, polypores, coral fungi, and gasteroid forms (e.g., puffballs…
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Ancestral genetic variation in phenotypic plasticity underlies rapid evolutionary changes in resurrected populations of waterfleas [Evolution]
The role of phenotypic plasticity in adaptive evolution has been debated for decades. This is because the strength of natural selection is dependent on the direction and magnitude of phenotypic responses to environmental signals. Therefore, the connection between plasticity and adaptation will depend on the patterns of plasticity harbored by…
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Evolutionary novelty in the apoptotic pathway of aphids [Evolution]
Apoptosis, a conserved form of programmed cell death, shows interspecies differences that may reflect evolutionary diversification and adaptation, a notion that remains largely untested. Among insects, the most speciose animal group, the apoptotic pathway has only been fully characterized in Drosophila melanogaster, and apoptosis-related proteins have been studied in a…
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The V2 loop of HIV gp120 delivers costimulatory signals to CD4+ T cells through Integrin {alpha}4{beta}7 and promotes cellular activation and infection [Immunology and Inflammation]
Acute HIV infection is characterized by rapid viral seeding of immunologic inductive sites in the gut followed by the severe depletion of gut CD4+ T cells. Trafficking of α4β7-expressing lymphocytes to the gut is mediated by MAdCAM, the natural ligand of α4β7 that is expressed on gut endothelial cells. MAdCAM…
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TCR{alpha} reporter mice reveal contribution of dual TCR{alpha} expression to T cell repertoire and function [Immunology and Inflammation]
It is known that a subpopulation of T cells expresses two T cell receptor (TCR) clonotypes, though the extent and functional significance of this is not established. To definitively evaluate dual TCRα cells, we generated mice with green fluorescent protein and red fluorescent protein reporters linked to TCRα, revealing that…
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Mechanisms by which adiponectin reverses high fat diet-induced insulin resistance in mice [Medical Sciences]
Adiponectin has emerged as a potential therapy for type 2 diabetes mellitus, but the molecular mechanism by which adiponectin reverses insulin resistance remains unclear. Two weeks of globular adiponectin (gAcrp30) treatment reduced fasting plasma glucose, triglyceride (TAG), and insulin concentrations and reversed whole-body insulin resistance, which could be attributed to…
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The ARF tumor suppressor targets PPM1G/PP2C{gamma} to counteract NF-{kappa}B transcription tuning cell survival and the inflammatory response [Medical Sciences]
Inducible transcriptional programs mediate the regulation of key biological processes and organismal functions. Despite their complexity, cells have evolved mechanisms to precisely control gene programs in response to environmental cues to regulate cell fate and maintain normal homeostasis. Upon stimulation with proinflammatory cytokines such as tumor necrosis factor-α (TNF), the…
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