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Climate worst-case scenarios may not go far enough, cloud data shows

Modelling suggests climate is considerably more sensitive to carbon emissions than thought Worst-case global heating scenarios may need to be revised upwards in light of a better understanding of the role of clouds, scientists have said. Recent modelling data suggests the climate is considerably more sensitive to carbon emissions than previously believed, and experts said the projections had the

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En lille klimahelt med lange ører: Skal du have kanin på din tallerken?

Produktion af kaninkød udleder mindre CO2 end svin og kvæg.

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Irmingers skorstensforsøg lagde grunden til aerodynamikken

Noget modstræbende lod driftsbestyreren for Østre Gasværk sig overtale af en gammel skolekammerat, H.C. Voigt, til at hjælpe ham med at bevise 'sugeeffekten', som han mente var årsagen til, at fugle kan flyve. Resultaterne gav genlyd verden over.

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LATEST

The Other Solar Power: How Scientists Are Making Fuel From Sunlight and Air

Scientists find a way to use the sun's energy to pull carbon dioxide from the air and turn it into fuel.

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Minimizing thermal conductivity of crystalline material with optimal nanostructure

Researchers have minimized thermal conductivity by designing, fabricating, and evaluating the optimal nanostructure-multilayer materials through materials informatics (MI), which combines machine learning and molecular simulation.

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This Week's Awesome Tech Stories From Around the Web (Through June 13)

GOVERNANCE A Bill in Congress Would Limit Uses of Facial Recognition Tom Simonite | Wired "Amazon, Microsoft, and IBM say they want federal rules around the technology. …A police reform bill introduced in the House of Representatives Monday by prominent Democrats in response to weeks of protest over racist policing practices would do just that. But some privacy advocates say its restrictions aren

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Study identifies mechanism affecting X chromosome that could lead to new disease therapies

Learning how to inactivate and reactivate an X chromosome would have important implications for medicine. A notable category of beneficiaries could be people with certain congenital diseases known as X-linked disorders, which are caused by mutations in genes on the X chromosome.

47min

Minimizing thermal conductivity of crystalline material with optimal nanostructure

Researchers have minimized thermal conductivity by designing, fabricating, and evaluating the optimal nanostructure-multilayer materials through materials informatics (MI), which combines machine learning and molecular simulation.

47min

Why COVID-19 Makes People Lose Their Sense of Smell

We're beginning to understand the mechanism behind this relatively common symptom — Read more on ScientificAmerican.com

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Guaranteed Ingredient in Any Coronavirus Vaccine? Thousands of Volunteers

Two sisters in Missouri were among the first to have an unproven coronavirus vaccine injected in their bodies. If it makes it to market, it would also be the first DNA vaccine for any disease.

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Versatile symbionts: Reed beetles benefit from bacterial helpers through all life stages

Researchers have investigated the contributions that symbiotic bacteria make to the unusual life cycle and diet of reed beetles.

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Statistical analyses of plant metabolites allow solid testing of plant defense theories

Do plants attacked by herbivores produce substances that are most effective against attackers in a targeted manner, or are herbivore-induced changes in a plant metabolism random, which could thwart the performance of herbivores? Scientists have tested these long-standing hypotheses for the first time using the coyote tobacco Nicotiana attenuata and its close relatives. They combined extensive meas

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Silicones may lead to cell death

Silicone molecules from breast implants can initiate processes in human cells that lead to cell death, according to new research

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New efficient ships won't be enough to curb shipping sector's environmental damage

New climate research has stated that urgent action on emissions from existing ships is the key to tackling shipping's impact on climate change.

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237+ million medication errors made every year in England

More than 237 million medication errors are made every year in England, the avoidable consequences of which cost the NHS upwards of £98 million and more than 1700 lives every year, indicate national estimates.

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Discovering how the brain works through computation

Researchers propose a new computational system to expand the understanding of the brain at an intermediate level, between neurons and cognitive phenomena such as language. They have developed a brain architecture based on neuronal assemblies, and they demonstrate its use in the syntactic processing in the production of language; their model is consistent with recent experimental results.

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Self-driving cars that recognize free space can better detect objects

It's important that self-driving cars quickly detect other cars or pedestrians sharing the road. Researchers have shown that they can significantly improve detection accuracy by helping the vehicle also recognize what it doesn't see. Empty space, that is.

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Chemotherapy/immunotherapy combo shows promise for first-line treatment of mesothelioma

Inoperable malignant pleural mesothelioma, is a rare and aggressive cancer of the protective lining of the lungs, or pleura, often caused by exposure to asbestos.

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Harnessing pickle power to promote dental health

A research team evaluated 14 different types of Sichuan pickles from southwest China. They extracted 54 different strains of Lactobacilli and found that one, L. plantarum K41, significantly reduced the incidence and severity of cavities. K41 was also highly tolerant of acids and salts, an additional benefit as a probiotic for harsh oral conditions. It also could have potential commercial value whe

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Mental Disorder In A Healthy Brain: The Goose, The Fox, and Addiction

Can there be mental disorder without brain disease?

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An ion channel senses cell swelling and helps cells to choose a response

Researchers provide new insights into how plants sense and respond to mechanical signals, such as cell swelling, rather than chemicals signals, such as nutrients or growth factors.

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How to find a tablet that works for you

With a few accessories, a tablet can become a sleek laptop alternative. ( Brooke Cagle / Unsplash/) Tablets pack all the power of smartphones behind a larger screen, which comes in handy when you're watching Netflix or reviewing documents on the go. These devices are so versatile that you can even grab a clip-on keyboard and a wireless mouse, and turn your tablet into a light, slim laptop replace

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Relationship Trouble? Research Shows Online Couples and Marriage Counseling Can Help.

Counseling can make a huge difference in whether or not your relationship overcomes the hurdles that life inevitably puts in its way. Unfortunately, a lot of couples don't get the counseling they need for a variety of reasons, including fear of social stigma, discomfort opening up to strangers, as well as lack of accessibility, convenience, and affordability. However, recent advancements in teleh

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Har du set dem? Kæmpeflokke af larver skaber spøgelsestræer

Overalt i landet pakker spindemøllarven lige nu træer ind i sit hvide spind.

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Zoom Shut Down US-Based Activists at China's Request

Hackers for hire, a particularly ignominious phishing campaign, and more of the week's top security news.

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Weekend reads: A wake-up call?; paper's author accused of racism; an editor resigns over personal attacks

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: The withdrawal of a COVID-19 scoring tool based on Surgisphere … Continue reading Weekend reads: A wake-up call?; paper's a

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The Internet Needs a New Architecture that Puts Users First

Treating the internet like a public utility only bolsters the platform giants. A more secure model starts with control by the people.

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Alex Garland May Be Too Good for This World

The filmmaker's Hulu show Devs is the latest in a long line of amazing cerebral sci-fi.

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There's No Going Back to 'Normal'

(Gregory Halpern / Magnum) More than three months have passed since the World Health Organization declared the coronavirus a pandemic . Initially, shock and denial gave way to coping with humor: There were a plethora of jokes on social media about introverts thriving and extroverts languishing under these dystopian conditions. There was wistful reminiscence of "the last time" we hugged a friend o

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The King of Staten Island Embraces the Pain of Growing Up

Many of Judd Apatow's protagonists have had the mindset of someone who lives in their parents' basement. Steve Carell's 40-year-old virgin, Seth Rogen's many affable stoners, and Amy Schumer's titular train wreck were all lovable heroes who had plenty of growing up left to do. But it took until The King of Staten Island , Apatow's newest feature, for the director to make a story about someone who

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5 Exercise Myths Debunked by Science

What science has to say about some of the gym's most persistent myths.

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50, 100 & 150 Years Ago: June 2020

Building bridges: stone, iron, steel — Read more on ScientificAmerican.com

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Sensitive but unclassified: Part II

The discussion and analysis of the latest round of climate models continues – but not always sensibly. In a previous post , I discussed the preliminary results from the ongoing CMIP6 exercise – an international, multi-institutional, coordinated and massive suite of climate model simulations – and noted that they exhibited a wider range of equilibrium climate sensitivities (ECS) than in previous p

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Coronavirus World News and Live Updates

Big U.S. states have reported ominous case figures. China closed a market that handles 90 percent of Beijing's fresh fruit and vegetables after dozens of people tested positive.

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5 Best Snack Subscription Boxes (2020): Universal Yums, MunchPak, Bokksu

We did the hard work of snacking to help you level up your nosh game.

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In Alaska, Summer's Getting Too Hot for the Salmon Run

Bristol Bay is heating up, killing fish as they try to swim upriver to spawn. It's a harbinger of climate change and hard times for fisheries.

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Could a global 'observatory' of blood help stop the next pandemic?

Proposal calls for screening donated blood and other samples from around the world for thousands of antibodies

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Tougher Building Codes Would Avert Major Losses, FEMA Study Shows

In California and Florida alone, such codes have prevented $1 billion a year in structural damage — Read more on ScientificAmerican.com

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17 Best Weekend Deals: Laptops, Phones, Videogames, and More

Need a gift for dad? How about a recent grad? We've rounded up the best sales on all our favorite tech.

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Give Black Scientists a Place in This Fight

O f the 110,000 Americans who have died from complications of COVID-19, nearly a quarter of them were black : churchgoers, mourners, singers, school principals, police chiefs, public-transit operators, doctors and nurses, young and old. I am a scientist who, for the past nine weeks, has been studying the respiratory virus that is disproportionately killing people who look like me. "I can't breath

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The Unreality of Cops

Of all the charges you could level at Cops , it's hard to accuse it of stinting on action. Until its cancellation this week, the 31-year-old reality series endured for so long because, despite the unvarnished nature of its presentation and concept (just regular cops filmed doing real police work!), it stuck rigidly to a fast-paced format. Each episode runs about 22 minutes long and has three acts

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Create Your Own Night Sky

There are about a septillion stars in the observable universe. You can bring a fraction into your home — which is more than enough.

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A $4.6 Billion Plan To Storm-Proof Miami

The federal government is planning a massive system of floodwalls, pumps and surge barriers for Miami. But it doesn't address the more frequently felt threat from rising sea levels. (Image credit: Wilfredo Lee/AP)

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Prosecute the Police

The American criminal-justice system rests on the principle that no one is above the law, and certainly not the police officers who are entrusted to enforce it. But someone seems to have forgotten to explain that to the police. Police brutality, much of it directed at black Americans and other people of color, has long been a part of American history . And now, thanks to the increased presence of

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How dopamine drives brain activity

Using a specialized magnetic resonance imaging (MRI) sensor, MIT neuroscientists have discovered how dopamine released deep within the brain influences both nearby and distant brain regions. Dopamine plays many roles in the brain, most notably related to movement, motivation, and reinforcement of behavior. However, until now it has been difficult to study precisely how a flood of dopamine affects

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Listening to Robert F. Kennedy

F ifty-two years ago last Saturday, Robert Kennedy was assassinated at the Ambassador Hotel in Los Angeles, after being declared the winner of the California presidential primary. He was 42 years old. I was too young to remember his death, but over the years I have become something of a Bobby Kennedy devotee. That might seem strange coming from a lifelong conservative who served in three Republic

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Aarhus-forskere gør overrumplende fund om vores knogler

PLUS. Et internationalt forskerhold bruger nye røntgen-metoder for at afdække, hvordan arkitekturen i sunde menneskeknogler er opbygget. Forskerne har afdækket en hidtil ukendt struktur i sunde knogler.

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The Android 11 Public Beta is out now—here are some of its exciting features

One thing I left out of my Android 11 beta hands on was the improved Voice Access, which now understand screen context and content. That was a mistake – it's actually incredible. You don't have to use a grid or button numbers, you can just say what's on the screen. Watch: pic.twitter.com/wXidxZGVjt — Dieter Bohn (@backlon) June 10, 2020

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The Wedding That Started a Republican Civil War

Virginia Republicans have spent the past decade getting routed in elections. They lost three U.S. congressional seats and control of both chambers of the state legislature in 2018 alone. Yet today, with another tough election less than five months away, Republicans in Virginia's Fifth District will gather in a church parking lot to decide whether to boot their incumbent congressman, Denver Riggle

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India's Comfort Food Tells the Story of Its Pandemic

T he evening, Surender Malik recalls , was a blur. Exhausted, he had just sat down to watch television as his wife prepared dinner when Prime Minister Narendra Modi appeared on-screen. It was March 24, and the coronavirus outbreak had been declared a pandemic about two weeks prior. Thus far India appeared not to have been badly affected, at least if official figures were anything to go by. The au

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Australia protests: thousands take part in Black Lives Matter and pro-refugee events amid Covid-19 warnings

Refugee advocates defy court order in Sydney as Victorian GP among nation's new coronavirus cases Thousands of people have taken part in Black Lives Matter and pro-refugee protests and marches across Australia, with refugee advocates in Sydney defying a court order to take to the city's streets. The protests came as Victoria recorded eight new coronavirus cases in the past day, including a GP who

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En lille matematisk udfordring til Ingeniørens læsere

Kan du løse fiem små opgaver, og kan du fortælle, hvem der har formuleret dem og hvorfor?

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How can international travel resume during the coronavirus pandemic?

Much of the world is starting to open up again but would-be travellers in many countries are face a confusing, uncertain and fast-changing situation

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NASA: Last Month Was Earth's Warmest May on Record

Particularly intense warmth in Siberia this spring may have awakened "zombie" fires, portending a brutal summer ahead

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Kvinders æg favoriserer bestemte mænds sæd – og det er ikke altid partnerens

Det kan være en del af forklaringen på, hvorfor nogle par er ufrivilligt barnløse.

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Skorsten från underjorden skapade Hawaii

En kartläggning av jordens inre visar nu att Hawaii står i direktkontakt med jordens flytande järnkärna. Där finns en hård och het struktur som nu har visat sig vara mycket större än vad man förut visste. Spela videon ovan för att se hur man kartlägger jordens inre.

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New approach to DNA data storage makes system more dynamic, scalable

Researchers have developed a fundamentally new approach to DNA data storage systems, giving users the ability to read or modify data files without destroying them and making the systems easier to scale up for practical use.

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New approach to DNA data storage makes system more dynamic, scalable

Researchers have developed a fundamentally new approach to DNA data storage systems, giving users the ability to read or modify data files without destroying them and making the systems easier to scale up for practical use.

14h

Sustained representation of perspectival shape [Psychological and Cognitive Sciences]

Arguably the most foundational principle in perception research is that our experience of the world goes beyond the retinal image; we perceive the distal environment itself, not the proximal stimulation it causes. Shape may be the paradigm case of such "unconscious inference": When a coin is rotated in depth, we…

15h

Enriched East Asian oxygen isotope of precipitation indicates reduced summer seasonality in regional climate and westerlies [Earth, Atmospheric, and Planetary Sciences]

Speleothem oxygen isotope records over East Asia reveal apparently large and rapid paleoclimate changes over the last several hundred thousand years. However, what the isotopic variation actually represent in terms of the regional climate and circulation is debated. We present an answer that emerges from an analysis of the interannual…

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Loss of ZIP facilitates JAK2-STAT3 activation in tamoxifen-resistant breast cancer [Cell Biology]

Tamoxifen, a widely used modulator of the estrogen receptor (ER), targets ER-positive breast cancer preferentially. We used a powerful validation-based insertion mutagenesis method to find that expression of a dominant-negative, truncated form of the histone deacetylase ZIP led to resistance to tamoxifen. Consistently, increased expression of full-length ZIP gives the…

15h

Microribbons composed of directionally self-assembled nanoflakes as highly stretchable ionic neural electrodes [Applied Physical Sciences]

Many natural materials possess built-in structural variation, endowing them with superior performance. However, it is challenging to realize programmable structural variation in self-assembled synthetic materials since self-assembly processes usually generate uniform and ordered structures. Here, we report the formation of asymmetric microribbons composed of directionally self-assembled two-dimens

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Genetic signature of prostate cancer mouse models resistant to optimized hK2 targeted {alpha}-particle therapy [Medical Sciences]

Hu11B6 is a monoclonal antibody that internalizes in cells expressing androgen receptor (AR)-regulated prostate-specific enzyme human kallikrein-related peptidase 2 (hK2; KLK2). In multiple rodent models, Actinium-225–labeled hu11B6-IgG1 ([225Ac]hu11B6-IgG1) has shown promising treatment efficacy. In the present study, we investigated options to enhance and optimize [225Ac]hu11B6 treatment. First,

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Long-term association of a transcription factor with its chromatin binding site can stabilize gene expression and cell fate commitment [Developmental Biology]

Some lineage-determining transcription factors are overwhelmingly important in directing embryonic cells to a particular differentiation pathway, such as Ascl1 for nerve. They also have an exceptionally strong ability to force cells to change from an unrelated pathway to one preferred by their action. Transcription factors are believed to have a…

15h

As rare animals disappear, scientist faces 'ecological grief'

Five years before the novel coronavirus ran rampant around the world, saiga antelopes from the steppes of Eurasia experienced their own epidemic.

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Simulations reveal interplay between scent marking and disease spread

In a new mathematical model that bridges animal movement and disease spread, territorial behaviors decreased the severity of potential disease outbreaks — but at the cost of increased disease persistence.

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Breastfeeding helps counteracts BMI gain in children at high risk for obesity

For people whose genes put them at risk of becoming obese, exclusive breastfeeding as a baby can help ward off weight gain later in life.

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Ultrastable, selective catalyst for propane dehydrogenation developed

A group of Japanese scientists has developed an ultrastable, selective catalyst to dehydrogenate propane – an essential process to produce the key petrochemical substance of propylene – without deactivation, even at temperatures of more than 600°C.

16h

Function of genetic pathway for reproductive fitness in flowering plants

A research collaboration has demonstrated the function of a genetic pathway for anther development, with this pathway proven in 2019 work to be present widely in the flowering plants that evolved over 200 million years ago.

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Tiny pump builds polyrotaxanes with precision

Researchers have developed the most precise way to build polyrotaxanes by using two artificial molecular pumps to install rings onto each end of a polymer string.

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Putting 'super' in natural killer cells

Using induced pluripotent stem cells (iPSCs) and deleting a key gene, researchers have created natural killer cells — a type of immune cell — with measurably stronger activity against a form of leukemia, both in vivo and in vitro.

16h

Tiny pump builds polyrotaxanes with precision

Researchers have developed the most precise way to build polyrotaxanes by using two artificial molecular pumps to install rings onto each end of a polymer string.

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Adult stem cell study shows fish oil may help with depression

A new study shows that patient-derived adult stem cells can be used to model major depressive disorder and test how a patient may respond to medication and that fish oil, when tested in the model, created an antidepressant response.

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Researchers model human stem cells to identify degeneration in glaucoma

More than 3 million Americans have glaucoma, a serious eye condition causing vision loss. Using human stem cell models, researchers found they could analyze deficits within cells damaged by glaucoma, with the potential to use this information to develop new strategies to slow the disease process.

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Turning fluorescent tags into cancer killers

Fluorophores with one oxygen atom replaced by a sulfur atom can be triggered with light to create reactive oxygen species within cancer cells, killing them.

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Engineers offer smart, timely ideas for AI bottlenecks

Researchers have demonstrated methods for both designing data-centric computing hardware and co-designing hardware with machine-learning algorithms that together can improve energy efficiency in artificial intelligence hardware by as much as two orders of magnitude.

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Adding noise for completely secure communication

How can we protect communications against 'eavesdropping' if we don't trust the devices used in the process? This is one of the main questions in quantum cryptography research. Researchers have now succeeded in laying the theoretical groundwork for a communication protocol that guarantees one hundred percent privacy.

16h

The Atlantic Daily: This Pandemic Isn't Over

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 . (TIMOTHY MULCARE "Americans are pretending that the pandemic is over," Yascha Mounk writes. " It certainly is not ." The coronavirus, he argues, will win—and many will be to blame. Meanwhile, our

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Dopamine signaling allows neural circuits to generate coordinated behaviors

For a nematode worm, a big lawn of the bacteria that it eats is a great place for it to disperse its eggs so that each hatchling can emerge into a nutritive environment. That's why when a worm speedily roams about a food patch it methodically lays its eggs as it goes. A new study by neuroscientists investigates this example of action coordination – where egg-laying is coupled to the animal's roami

16h

From bacteria to you: The biological reactions that sustain our rhythms

Methylation and the circadian clock are both conserved mechanisms found in all organisms. Researchers found that inhibiting methylation with a specific compound disrupts the circadian clock in most organisms except bacteria. The team transformed specific methylation genes from bacteria into animal cells to rescue said inhibition, opening potentially new treatments for methylation deficiencies.

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Protecting eels protects freshwater biodiversity

An international research team has conducted a field survey on two species of eel native to Japan and other organisms that share the same habitat, revealing for the first time in the world that these eels can act as comprehensive surrogate species for biodiversity conservation in freshwater rivers. It is hoped that conducting activities to restore and protect eel populations will contribute greatl

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Coronavirus live news: Fauci warns against Trump rallies; health fears in Australia over BLM protests

Brazil death toll becomes second highest in world; Dr Anthony Fauci says gatherings are a 'danger'; Australia's chief medical officers warns against BLM rallies Chief nurse dropped from No 10 briefing 'for not backing Cummings Brazil overtakes UK with world's second-highest Covid-19 death toll India's agony: 'I did everything to save my wife and baby' 2.09am BST New Zealand news service Newshub r

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