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Showing posts from September, 2020

Reevaluating bipedalism in Danuvius

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2736-4 Reevaluating bipedalism in Danuvius

An enzymatic Alder-ene reaction

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2743-5 Analysis of two homologous groups of fungal pericyclases demonstrates how they can catalyse either an Alder-ene reaction—which has not previously been found in nature—or a hetero-Diels–Alder reaction.

Concentric liquid reactors for chemical synthesis and separation

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2768-9 In a rotating reactor, immiscible or pairwise-immiscible liquids organize into stable but internally agitated concentric layers, enabling multistep syntheses and separations of reaction mixtures.

Active particles induce large shape deformations in giant lipid vesicles

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2730-x Experiments and simulations show that local non-equilibrium forces exerted by self-propelled particles trapped inside a giant unilamellar lipid vesicle induce dramatic shape changes in the vesicle.

Tumoural activation of TLR3–SLIT2 axis in endothelium drives metastasis

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2774-y Expression of the axon-guidance gene Slit2 in endothelium, induced by endothelial sensing of tumour-derived double-stranded RNA, promotes metastatic dissemination in mouse models of breast and lung cancer.

Arctic science cannot afford a new cold war

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02739-x As Russia prepares to take the helm of the Arctic Council, polar communities need regional powers to forge warmer ties.

Bolometer operating at the threshold for circuit quantum electrodynamics

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2753-3 A thermal detector based on a graphene monolayer operates at the threshold for circuit quantum electrodynamics applications, achieving a minimum time constant of 200 ns.

Innovations present in the primate interneuron repertoire

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2781-z Single-nucleus RNA-sequencing analyses of brain from humans, macaques, marmosets, mice and ferrets reveal diverse ways that interneuron populations have changed during evolution.

A single bacterial genus maintains root growth in a complex microbiome

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2778-7 Experiments using an ecologically realistic 185-member bacterial synthetic community in the root system of Arabidopsis reveal that Variovorax bacteria can influence plant hormone levels to reverse the inhibitory effect of the community on root growth.

Reply to: Reevaluating bipedalism in Danuvius

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2737-3 Reply to: Reevaluating bipedalism in Danuvius

Brain’s immune cells put the brakes on neurons

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02713-7 Microglia are the brain’s immune cells. A previously unknown role for microglia has now been uncovered: providing negative feedback to active neurons, to help the brain process information.

Greenland's ice will melt faster than any time in the past 12,000 years

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02784-6 How current and future ice loss in Greenland compares to the past, and using graphene to make ultra-sensitive radiation detectors.

Repeat expansions confer WRN dependence in microsatellite-unstable cancers

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2769-8 In cells with microsatellite instability, expanded TA-dinucleotide repeats form cruciform structures that stall replication forks and cause chromosome shattering in the absence of the WRN helicase.

Structural basis for pH gating of the two-pore domain K+ channel TASK2

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2770-2 The authors report on the structure of the K+ channel TASK2 and how this channel opens in response to pH changes on either side of the cell membrane.

Rate of mass loss from the Greenland Ice Sheet will exceed Holocene values this century

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2742-6 Rates of ice-mass loss from southwestern Greenland this century will exceed the maximum rate over the past 12,000 years, and would not be the result of natural variation.

The grim truth behind eyewitness accounts of sea serpents

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02771-x Centuries-old ‘unidentified marine objects’ hint that sea creatures have been getting entangled in fishing lines since before the invention of plastic.

A strange game of dice

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02772-w Quantum reality.

COVID-19 vaccine BNT162b1 elicits human antibody and TH1 T-cell responses

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2814-7 COVID-19 vaccine BNT162b1 elicits human antibody and T H 1 T-cell responses

Alexa, do I have COVID-19?

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02732-4 Researchers are exploring ways to use people’s voices to diagnose coronavirus infections, dementia, depression and much more.

The major genetic risk factor for severe COVID-19 is inherited from Neanderthals

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Nature, Published online: 30 September 2020; doi:10.1038/s41586-020-2818-3 The major genetic risk factor for severe COVID-19 is inherited from Neanderthals

Severe COVID and shrinking Arctic sea ice

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02731-5 The latest science news, in brief.

Photo Of The Day By Clayton Peoples

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Photo By Clayton Peoples Today’s Photo Of The Day is “Celestial Dawn” by Clayton Peoples. Location: Mono Lake South Tufa Area, California. “With comet NEOWISE putting on a dazzling, once-in-a-lifetime show, I pondered where I could photograph it with clear skies, no human-made lights and water,” says Peoples. “I decided on Mono Lake with its moonlit tufa providing a surreal, ‘otherworldly’ atmosphere. I pulled an all-nighter to drive there and get this shot, but it was totally worth it! An added bonus is that despite a few waves/ripples on the water, the long exposure smoothed the surface and allowed for reflections.” Photo of the Day is chosen from various OP galleries, including Assignments ,  Galleries  and the  OP Contests . Assignments have weekly winners that are featured on the OP 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 Clayt...

India pushes bold ‘one nation, one subscription’ journal-access plan

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Nature, Published online: 30 September 2020; doi:10.1038/d41586-020-02708-4 Researchers will also recommend an open-access policy that promotes research being shared on online repositories.

Attention science: some people have only one name

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02761-z Registration forms, grant applications and publishing all create hurdles for single-name researchers. A culturally sensitive approach is needed.

Vaughan Jones (1952–2020)

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02752-0 Mathematician whose invention connected knots to quantum physics.

Daily briefing: One million people have died from COVID-19

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02769-5 One million deaths have been attributed to COVID-19 — and the true toll is probably even higher. Plus, three lakes discovered under Mars’s south pole and how to digitize your lab notebooks using only a smartphone.

No vehicle means a hard road to health care for millions of people

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02737-z More than 40% of people globally face a long trip to a health-care facility unless they find a ride by car, bus or similar form of transport.

Photo Of The Day By Christoph Stopka

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Photo By Christoph Stopka Today’s Photo Of The Day is “Lightning in Cloud” by Christoph Stopka. Location: Wet Mountain Valley, Colorado. “This cloud was the grand finale of a big summer monsoon thunderstorm in the high country of Colorado,” says Stopka. “This cloud monster was basically hovering over the same area in the Wet Mountains for hours, slowly growing in size. And growing. Finally, just before darkness, this by now gigantic cloud started to explode. Lightning illuminated the belly of the beast, and eventually, the lightning bolts were reaching out of the vapor mass and were shooting nonstop in all directions. The most intense and scariest thunderstorm I’ve ever witnessed. But, at the same time, so stunningly beautiful that it was truly mesmerizing.” Nikon D850. Exposure: 1/3 sec., f/5.6, ISO 320. See more of Christoph Stopka’s photography at www.christophstopka.com . Photo of the Day is chosen from various OP galleries, including Assignments ,  Galleries  and t...

COVID vaccine confidence requires radical transparency

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02738-y Public trust in a potential vaccine is under threat. Drug companies and their academic partners must disclose protocols and results data.

Wildfires: count lives and homes, not hectares burnt

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02740-4 Smarter ways to assess fires will bring better methods of preventing damage.

Democracy suffers when government statistics fail

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02733-3 The United States must change how it measures society, argues metrics maven Julia Lane.

The lockdown tweet that launched a COVID-19 ‘supertracker’

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02760-0 Lukas Lehner wanted to capture how different economies are addressing COVID-19 challenges. His Twitter call-out helped to create a global directory of policy resources based on swarm intelligence, and led to a research project.

Marine mammalogy must battle against unpaid work, argues petition

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Nature, Published online: 29 September 2020; doi:10.1038/d41586-020-02758-8 Scientists in the discipline and elsewhere say that uncompensated internships and work placements create barriers to inclusion and diversity.

What Trump’s Supreme Court pick could mean for science

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02747-x If confirmed, Amy Coney Barrett is likely to influence the court on environmental regulation, scientific expertise and agency transparency, say legal scholars.

Daily briefing: COVID-19 vaccine development — where we are now

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02755-x A comprehensive review of the SARS-CoV-2 vaccine landscape, why birds are so smart and ‘apocalyptic’ fires in the world’s largest tropical wetland.

Water on Mars: discovery of three buried lakes intrigues scientists

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02751-1 Researchers say they have detected a group of lakes hidden under the red planet’s icy surface.

Summer Storms Assignment Winner Bob Faucher

Congratulations to Bob Faucher for winning the recent Summer Storms Assignment with the image, “Electrical Storm,” which was taken near Thermopolis, Wyoming. See more of Bob Faucher’s work at www.faucherphotography.com . 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 Summer Storms Assignment Winner Bob Faucher appeared first on Outdoor Photographer .

Photo Of The Day By Kevin King

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Photo By Kevin King Today’s Photo Of The Day is “Swirlpool” by Kevin King. Location: West Virginia. “A large eddy at the base of a remote waterfall in West Virginia,” describes King. Nikon D800E. Exposure: 30 sec., f/11, ISO 50. Photo of the Day is chosen from various OP galleries, including Assignments ,  Galleries  and the  OP Contests . Assignments have weekly winners that are featured on the OP 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 Kevin King appeared first on Outdoor Photographer .

Bacteria sting viral invaders

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02712-8 The cGAS–STING signalling pathway, which has a key role in antiviral immune responses in mammals, is found to have originated as an immune-defence system that protects bacteria against viral infection.

Chasing bats at dawn

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02727-1 Conservation scientist Ricardo Rocha seeks to discover how deforestation affects communities of bats that feast on disease-bearing insects.

The visa woes that shattered scientists’ American dreams

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02746-y Five international students and postdocs reflect on a turbulent year triggered by the Trump administration’s visa restrictions.

How to digitize your lab notebooks

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Nature, Published online: 28 September 2020; doi:10.1038/d41586-020-02728-0 Converting paper records to digital formats provides secure back-ups that researchers can access from anywhere.

Prevent Background Blunders

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Regardless of a subject’s impact, if the background is busy, has distractions, is too bright, etc., the photo falls short. Learn to treat your background with the same importance you treat your subject. It’s a winning formula. Think back to your Photo 101 days when you were shown the cliched image of a person with a telephone pole growing out of his head. Sometimes juxtapositions work well and bring a smile to the viewer’s face, but unless the end result is intentional and created to raise a laugh, it’s an obvious blunder. Learn how to simplify your backgrounds so when you run a background check, you feel confident you’ve succeeded. Tunnel vision in photography is very common. Even seasoned veterans fall victim to it. When a great subject appears in a viewfinder, the eye locks onto it and notices nothing else. It’s not until the image is reviewed on the back of the camera or on a computer when one says, I didn’t notice that dead log behind the lion, I didn’t see all those bright sp...

Photo Of The Day By Sam Folsom

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Photo By Sam Folsom Today’s Photo Of The Day is “Flow Through Rock” by Sam Folsom. Location: Yosemite National Park, California. “Bridalveil Falls in Yosemite as the water makes its way through the rocks during the dry season,” describes Folsom. See more of Sam Folsom’s work at www.samfolsom.com . Photo of the Day is chosen from various OP galleries, including Assignments ,  Galleries  and the  OP Contests . Assignments have weekly winners that are featured on the OP 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 Sam Folsom appeared first on Outdoor Photographer .

Photo Of The Day By Gene Putney

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Photo By Gene Putney Today’s Photo Of The Day is “Mountain Cascade” by Gene Putney. Location: Colorado. “While traveling through the Northern Colorado mountains I came across this nice mountain cascade,” describes Putney. “At first it was harsh light with sunny conditions; however, I noticed clouds rolling in, so I waited for them to finally block the sun to get the soft light I was hoping for.” See more of Putney’s work at www.putneynatureimages.com . Photo of the Day is chosen from various OP galleries, including Assignments ,  Galleries  and the  OP Contests . Assignments have weekly winners that are featured on the OP 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 Gene Putney appeared first on Outdoor Photographer .

Last Frame: Ready To Get My Nails Done

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Photo By Christine Haines “A friend arranged a photo tour to Lake Clark National Park, Alaska, in order to photograph coastal brown bears,” says Christine Haines. “This was my second time at the park during the same time period. However, on this visit, we didn’t have as many bears digging for clams or young cubs to photograph. I was told that the mothers were keeping their cubs hidden because of the boar activity. Luckily, we had a fox that occasionally visited near our cabins. When I first saw her from my cabin window, she was resting on a moss-covered boulder, making for a good photo opportunity. I quickly grabbed my camera and took a few images before she went on her way. Seeing her was one of the highlights of my trip.” Canon 7D Mark II, EF 400mm f/4 DO IS USM lens, handheld. Exposure: 1/800 sec., f/7.1, ISO 1000. See more of Christine Haines’ work at www.flickr.com/photos/cvhainesphotos/ . The post Last Frame: Ready To Get My Nails Done appeared first on Outdoor Photographe...

‘Apocalyptic’ fires are ravaging the world’s largest tropical wetland

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Nature, Published online: 25 September 2020; doi:10.1038/d41586-020-02716-4 Infernos in South America’s Pantanal region have burnt twice the area of California’s fires this year. Researchers fear the rare ecosystem will never recover.