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Showing posts from March, 2021

What’s next in the search for COVID’s origins

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Nature, Published online: 01 April 2021; doi:10.1038/d41586-021-00877-4 Scientists say that a WHO report was a reasonable start given the available evidence, but there are many questions yet to be answered.

Flexible scaling and persistence of social vocal communication

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Nature, Published online: 31 March 2021; doi:10.1038/s41586-021-03403-8 A population of neurons is identified in the lateral preoptic area that can drive the full range of social communication sounds with affective scaling during mating in mice.

Fertilized egg cells secrete endopeptidases to avoid polytubey

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Nature, Published online: 31 March 2021; doi:10.1038/s41586-021-03387-5 Fertilized Arabidopsis egg cells secrete endopeptidases into the extracellular space that cleave the pollen tube attractor LURE1, preventing polytubey.

Flavour Hund’s coupling, Chern gaps and charge diffusivity in moirĆ© graphene

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Nature, Published online: 31 March 2021; doi:10.1038/s41586-021-03366-w Chemical potential measurements in twisted bilayer graphene reveal the importance of Coulomb repulsion and exchange interactions in the symmetry-broken ground state, and provide the charge diffusivity in the strange-metal regime.

Stabilization of liquid instabilities with ionized gas jets

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Nature, Published online: 31 March 2021; doi:10.1038/s41586-021-03359-9 A weakly ionized gas jet impinging on a water surface is shown to produce a more stable cavity than does a neutral gas jet, with implications for plasma–liquid interactions.

Structural basis of malaria RIFIN binding by LILRB1-containing antibodies

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Nature, Published online: 31 March 2021; doi:10.1038/s41586-021-03378-6 Plasmodium antigens called RIFINs bind to specific antibodies that incorporate the inhibitory receptor LILRB1 through its D3 domain, illustrating the principle of receptor-containing antibodies.

Atomic structure of a glass imaged at last

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00794-6 The positions of all the atoms in a sample of a metallic glass have been measured experimentally — fulfilling a decades-old dream for glass scientists, and raising the prospect of fresh insight into the structures of disordered solids.

Relax to grow more hair

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00656-1 A stress hormone has been found to signal through skin cells to repress the activation of hair-follicle stem cells in mice. When this signalling is blocked, hair growth is stimulated. Stressed humans, watch out.

Early humans far from the South African coast collected unusual objects

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00795-5 Ostrich eggshells and crystals gathered more than 100,000 years ago shed light on the cultural evolution of early humans. Found in South Africa’s interior, they reveal that technological innovations occurred beyond its coast.

Photo Of The Day By Denis Dessoliers

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Photo by Denis Dessoliers Today’s Photo Of The Day is “Mountain Spring Sunrise” by Denis Dessoliers. Location: Babb, Montana. Want to get your images in the running for a Photo of the Day feature? Photo of the Day is chosen from various galleries, including Assignments ,  Galleries  and  Contests . Assignments have weekly winners that are featured on the website homepage, Facebook , Twitter  and Instagram . To get your photos in the running, all you have to do is submit them. The post Photo Of The Day By Denis Dessoliers appeared first on Outdoor Photographer .

Sports science

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00814-5 The importance of science in elite sport — from helping athletes to train safely to protecting sporting integrity.

Could mitochondria help athletes to make gains?

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00817-2 The muscles of elite endurance athletes boast high numbers of extra-efficient mitochondria. Unlocking the secrets of these cellular components could yield gains for future Olympians.

The science helping athletes to beat the heat

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00815-4 As global temperatures rise, athletes and sports bodies are following the science to ensure that events can take place safely.

Data scientists are predicting sports injuries with an algorithm

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00818-1 Machine learning can tell athletes when to train and when to stop.

Why clean sport is more than just drug-free

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00820-7 Doping is just one form of cheating in sport. To protect sporting integrity, all unethical behaviours must be treated equally, says Andrea Petróczi.

How athletes hit a fastball

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00816-3 To strike a ball moving at lightning speeds in baseball, tennis and cricket, athletes and coaches are increasingly embracing training techniques involving virtual reality.

The future of sex in elite sport

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00819-0 Sex has long been used to divide sporting competitions in the name of fairness, but are the current rules and enforcement practices fit for purpose?

Do microbes affect athletic performance?

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00821-6 Some studies suggest that the community of microorganisms that live in the gut are associated with athleticism.

Net-zero carbon pledges must be meaningful to avert climate disaster

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00864-9 More countries are pledging to achieve carbon neutrality. They must now show how they plan to do this.

Freemium

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00882-7 It’s no game.

Daily briefing: Satellite light pollution is everywhere

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00874-7 Nowhere left on Earth to view the stars without light pollution from space junk and satellites. Plus, how to make indoors safe again and the US is urged to invest in solar-geoengineering studies.

Plant–insect gene transfer, NASA chief and COVID reinfections

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Nature, Published online: 31 March 2021; doi:10.1038/d41586-021-00809-2 The latest science news, in brief.

Motivational Moments Assignment Winner Christopher Baker

Congratulations to Christopher Baker for winning the recent Motivational Moments Assignment with the image, “Coming Up Empty.” View the winning image and a selection of submissions in the gallery below. And be sure to check out our current photography assignment  here  and enter your best shots! [ See image gallery at www.outdoorphotographer.com ] The post Motivational Moments Assignment Winner Christopher Baker appeared first on Outdoor Photographer .

Bright lights drew a plague of grasshoppers to ‘Sin City’

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00827-0 Clouds of insects swarmed to the gaudy glare of a gambling hotspot at night.

Toroweap Overlook

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Toroweap Overlook has one of the best views in the solar system. This is an area that I had longed to visit—it’s unlike your usual experience at Grand Canyon . On the more familiar south side of the park, you generally see a vast expanse of canyon terrace landscape, and usually you can’t see the river at all. Toroweap is on the north side of the canyon, where it narrows enough to corral the Colorado River beneath 3,000-foot cliffs and where the larger of the canyon rapids, Lava Falls, lays below. Toroweap is more difficult to get to than the south side of Grand Canyon. Dropping down out of the southern edge of Utah heading into Arizona, you must take a 61-mile dirt road and arrive at a destination that’s beautifully noncommercial. Be prepared for no water, gas or any comforts. Campsites are low in number and must be reserved. Bring spare tires—yes, more than one recommended. I rescued two ladies who had flats—then I got one myself! Weather At Toroweap Overlook The weather on the C...

WHO report into COVID pandemic origins zeroes in on animal markets, not labs

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00865-8 Scientists say the conclusions make sense but note that supporters of the lab-leak theory are unlikely to be satisfied.

Daily briefing: Oxford–AstraZeneca COVID vaccine is back on track

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Nature, Published online: 26 March 2021; doi:10.1038/d41586-021-00849-8 Oxford-AstraZeneca vaccine’s rollercoaster ride of a week might be coming to a welcome end. Plus, the first known gene transfer from plant to insect and watch an octopus change colour during active sleep.

Device sketches objects 200 kilometres away, one photon at a time

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00828-z The laser-based apparatus receives a steady drip of single photons to craft portraits of distant targets.

Photo Of The Day By Jody Hildreth

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Photo By Jody Hildreth Today’s Photo Of The Day is “Going To The Sunburst Road” by Jody Hildreth. Location: Glacier National Park, Montana. “It wasn’t looking like a colorful sunset was going to happen this night, so I found a little pull-off spot on the Going To The Sun Road in Glacier National Park to try to photograph a sunburst,” explains Hildreth. “When I climbed up the small stone guard rail I was surprised to find some colorful flowers.” Want to get your images in the running for a Photo of the Day feature? Photo of the Day is chosen from various galleries, including Assignments ,  Galleries  and  Contests . Assignments have weekly winners that are featured on the website homepage, Facebook , Twitter  and Instagram . To get your photos in the running, all you have to do is submit them. The post Photo Of The Day By Jody Hildreth appeared first on Outdoor Photographer .

Why mummified tropical parrots are buried in one of the world’s driest deserts

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00848-9 Scarlet macaws and other birds plucked from distant jungles lived out their lives as pets in oasis communities.

It’s time to consider a patent reprieve for COVID vaccines

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00863-w The pandemic is not a competition between companies and will not end without more-equal distribution of coronavirus vaccines.

Long-awaited muon physics experiment nears moment of truth

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00833-2 A result that has been 20 years in the making could reveal the existence of new particles, and upend fundamental physics.

Why indoor spaces are still prime COVID hotspots

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00810-9 Risks shoot up when virus particles accumulate in buildings, but it’s not clear how best to improve ventilation.

Video grant proposals could be exclusionary

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00862-x Video grant proposals could be exclusionary

Want the games industry to share data? Share yours

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00860-z Want the games industry to share data? Share yours

India: draft science policy calls for public engagement

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00861-y India: draft science policy calls for public engagement

Daily briefing: What the science says about long COVID

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00856-9 The toll of long COVID, a vaccine trial scandal rocks Peru and what it will take to vaccinate the world.

People of faith are allies to stall climate change

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Nature, Published online: 30 March 2021; doi:10.1038/d41586-021-00808-3 Together, religious groups and scientists can be a powerful force for a liveable planet.

US urged to invest in sun-dimming studies as climate warms

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00822-5 National academies report is most explicit call yet for a government research programme to explore the controversial field of solar geoengineering.

Small farms outdo big ones on biodiversity — and crop yields

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00825-2 Large-scale farms account for most of the global food supply, but smallholdings protect species and are just as profitable.

A fine soft day for surveying moss and liverworts

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00813-6 A rainforest in southwest Ireland offers Rory Hodd the chance to discover unusual specimens of ferns and other flora.

‘We must adapt’: EU research chief on Europe’s €100-billion funding programme

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00834-1 Commissioner Mariya Gabriel will oversee the implementation of the Horizon Europe scheme.

How to take the lead in your career

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00811-8 At any stage, building leadership skills can help scientists promote their ideas and bring out the best in others.

AI spots cell structures that humans can’t

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Nature, Published online: 26 March 2021; doi:10.1038/d41586-021-00812-7 Models can predict the location of cell structures from light-microscopy images alone, without the need for harmful fluorescence labelling.

A 200-million-year delay in permanent atmospheric oxygenation

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Nature, Published online: 29 March 2021; doi:10.1038/s41586-021-03393-7 Sulfur isotope and iron–sulfur–carbon systematics on marine sediments indicate that permanent atmospheric oxygenation occurred around 2.22 billion years ago, about 100 million years later than currently estimated.

Pandemic measures disproportionately harm women’s careers

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00854-x Family responsibilities incurred by shutdowns — and existing bias — disrupted the mental health, productivity and work–life balance of US female academic scientists, finds study.

Photo Of The Day By Laura Zirino

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Photo By Laura Zirino Today’s Photo Of The Day is “Globemallow and Towers” by Laura Zirino. Location: Castle Valley, Utah. “Fields of globemallows bloom in spring, surrounded by towering monoliths in Eastern Utah,” describes Zirino. “This is the entrance to Castle Valley, famous for these towers. The far tower in the center, Castleton Tower, is a favorite of climbers.” Want to get your images in the running for a Photo of the Day feature? Photo of the Day is chosen from various galleries, including Assignments ,  Galleries  and  Contests . Assignments have weekly winners that are featured on the website homepage, Facebook , Twitter  and Instagram . To get your photos in the running, all you have to do is submit them. The post Photo Of The Day By Laura Zirino appeared first on Outdoor Photographer .

Escape of SARS-CoV-2 501Y.V2 from neutralization by convalescent plasma

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Nature, Published online: 29 March 2021; doi:10.1038/s41586-021-03471-w Escape of SARS-CoV-2 501Y.V2 from neutralization by convalescent plasma

The spatial landscape of lung pathology during COVID-19 progression

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Nature, Published online: 29 March 2021; doi:10.1038/s41586-021-03475-6 The spatial landscape of lung pathology during COVID-19 progression

How pirouettes and pliƩs prepared me for a research career

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Nature, Published online: 29 March 2021; doi:10.1038/d41586-021-00846-x Ballet’s culture of consistent feedback and dogged resilience have served Aisling Roche well as a researcher, in both academia and industry.

Dawn And Dusk Flash Photography

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Etymology: The study of words. Photography: The art of taking and processing photographs. Photo = light Graphy = to write    In regard to etymology, photography means to write with light. Flash allows a photographer to add light where it doesn’t appear naturally. Subjects that appear in shadow can now be illuminated. At dawn and dusk, when the sky is included in the composition, anything that appears in the foreground has less light. The difference may be between 4 to 5 stops. This being the case, the entire foreground reveals less detail. To even out the difference, a bracketed series of exposures can be made and optimized using HDR software. But what if the subject moves during the bracketing? When the subject is wildlife or delicate flowers that move in the slightest breeze, HDR isn’t the best solution. Incorporate the use of flash to solve the problem. Use it to provide supplementary illumination to the subject in the foreground.    There’s a ma...