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Simulations reveal how dominant SARS-CoV-2 strain binds to host, succumbs to antibodies  

The dominant G-form spike protein 'puts its head up' more frequently to latch on to receptors, but that makes it more vulnerable to neutralization.

what do you think?

2021-04-17 04:59:40



A new super-Earth detected orbiting a red dwarf star  

Researchers report the discovery of a super-Earth orbiting the star GJ 740, a red dwarf star situated some 36 light years from Earth.

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2021-04-17 04:15:50



Surprise twist suggests stars grow competitively  

A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, is the key factor in deciding the final mass of the produced star.

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2021-04-16 21:15:18



What the Oldest Known Cave Painting Reveals About Early Humans (and What It Doesn't)  

Ancient humans began to draw symbols on caves at least 45,500 years ago, according to a surprising finding on the Indonesian island of Sulawesi.

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2021-04-16 20:07:47



Experiments cast doubts on the existence of quantum spin liquids  

A quantum spin liquid is a state of matter in which interacting quantum spins do not align even at lowest temperatures, but remain disordered. Research on this state has been going on for almost 50 years, but whether it really exists has never been proven beyond doubt. An international team has now put an end to the dream of a quantum spin liquid for the time being. Nevertheless, the matter remains exciting.

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2021-04-16 19:16:38



Coronavirus News Roundup, April 10--April 16  

Pandemic highlights for the week -- Read more on ScientificAmerican.com

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2021-04-16 17:34:26



A rich marine algal ecosystem 600 million years earlier than previously thought  

The first photosynthetic oxygen-producing organisms on Earth were cyanobacteria. Their evolution dramatically changed the Earth allowing oxygen to accumulate into the atmosphere for the first time and further allowing the evolution of oxygen-utilizing organisms including eukaryotes. Eukaryotes include animals, but also algae, a broad group of photosynthetic oxygen-producing organisms that now dominate photosynthesis in the modern oceans. When, however, did algae begin to occupy marine ecosystems

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2021-04-16 16:55:18



On the pulse of pulsars and polar light  

Faced with the tragic loss of the Arecibo observatory in Puerto Rico and the often prohibitive cost of satellite missions, astronomers are searching for savvy alternatives to continue answering fundamental questions in physics.

what do you think?

2021-04-16 16:44:27



Underweight and overweight women at higher risk of successive miscarriages  

A new study has shown that underweight and overweight women are at a significantly higher risk of experiencing recurrent miscarriages compared to those of average weight.

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2021-04-16 16:43:25



Hidden magma pools pose eruption risks that we can't yet detect  

Volcanologists' ability to estimate eruption risks is largely reliant on knowing where pools of magma are stored, deep in the Earth's crust. But what happens if the magma can't be spotted?

what do you think?

2021-04-16 16:03:04



Study strengthens links between red meat and heart disease  

An observational study in nearly 20,000 individuals has found that greater intake of red and processed meat is associated with worse heart function.

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2021-04-16 13:50:26



Japan Just Had Its Earliest Peak Bloom of Cherry Blossoms in 1,200 Years. Is Climate Change to Blame?  

An exceptionally warm spring has led to the early arrival of cherry blossoms in Japan, causing researchers to draw patterns between local temperature increases and global warming.

what do you think?

2021-04-16 13:34:06



Research shows to disrupt online extremism freewill is key  

According to new research, when people are explicitly told that they are free to accept or reject propagandistic claims, the likelihood of choosing a moderate view increases. This was a result of a survey of attitudes that tested counter-propaganda strategies, which stressed a person's autonomy, and then measured sentiments after exposure.

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2021-04-16 13:17:43



Norovirus clusters are resistant to environmental stresses and UV disinfection  

Clusters of a virus known to cause stomach flu are resistant to detergent and ultraviolet disinfection, according to new research. The findings suggest the need to revisit current disinfection, sanitation and hygiene practices aimed at protecting people from noroviruses.

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2021-04-16 12:32:09



With impressive accuracy, dogs can sniff out coronavirus  

In a proof-of-concept study, dogs identified positive samples with 96 percent accuracy.

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2021-04-16 12:18:49



Holotropic Breathing Promises Psychedelic-Like Trips Without the Drugs. Is It Safe?    

Many people report having spiritual experiences and psychological shifts while practicing intense and forceful breathing. But experts say this type of hyperventilating can pose mental and physical risks.

what do you think?

2021-04-16 11:59:30



Fit matters most when double masking to protect yourself from COVID-19  

A new study shows that wearing two face coverings can nearly double the effectiveness of filtering out SARS-CoV-2-sized particles, preventing them from reaching the wearer's nose and mouth and causing COVID-19.

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2021-04-16 11:21:13



Experimental antiviral for COVID-19 effective in hamster study  

The experimental antiviral drug MK-4482 significantly decreased levels of virus and disease damage in the lungs of hamsters treated for SARS-CoV-2 infection, according to a new study. MK-4482, delivered orally, is now in human clinical trials.

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2021-04-16 10:50:48



The Fast Lane for COVID Testing Has Opened Up in the U.S.  

Recently approved rapid antigen tests are likely to help mitigate the chain of transmission and put the U.S. on par with other countries that have them -- Read more on ScientificAmerican.com

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2021-04-16 10:25:53



New measure to predict stress resilience  

Researchers show that increased sensitivity in a specific region of the brain contributes to the development of anxiety and depression in response to real-life stress. Their study establishes an objective neurobiological measure for stress resilience in humans.

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2021-04-16 09:49:14



Long-term weight retention and associated health risks identified in obese adults  

UK adults who are overweight or obese retain their weight over time, which is associated with an increased risk of health complications and death, according to a new study.

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2021-04-16 09:26:06



Climate Emergency Stymies Forecasts of Local Disaster Risks  

After a record-setting year for hurricanes and wildfires, the insurance industry is grappling with the role of our climate emergency in estimating local disaster damages -- Read more on ScientificAmerican.com

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2021-04-16 09:12:58



Long-term consequences of CO2 emissions  

According to a new study, the oxygen content in the oceans will continue to decrease for centuries even if all CO2 emissions would be stopped immediately. The slowdown of ocean circulation and the progressive warming of deeper water layers are responsible for this process.

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2021-04-16 09:06:17



Beyond COVID, the Future of mRNA Is Bright  

Scientists say the technology behind the COVID-19 vaccines could change medicine and lead to new treatments against diseases like malaria, cancer and HIV.

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2021-04-16 08:45:01



Two distinct types of COVID-19-associated acute respiratory distress syndrome identified  

Identifying subsets of patients with different biochemical characteristics can help clinical researchers develop more effective therapies for treating ARDS associated with COVID-19 infections. Results of a new study suggest that disruption of the normal regulation of blood vessels and circulation could be a key feature of critical illness, severe symptoms, and death related to COVID-19 infections.

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2021-04-16 08:41:36



Patients who are overweight or obese at risk of more severe COVID-19, study finds  

Patients who are overweight or obese have more severe COVID-19 and are highly likely to require invasive respiratory support, according to a new international study.

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2021-04-16 08:38:30



The Sky Phenomena That May Have Inspired Artist Georges Seurat  

Did volcanic aerosols inspire the artist's new direction?

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2021-04-16 08:25:20



Tiny cat-sized stegosaur leaves its mark  

A single footprint left by a cat-sized dinosaur around 100 million years ago has been discovered in China by an international team of palaeontologists.

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2021-04-16 07:02:38



Unconventional takes on pandemics and nuclear defense could protect humanity from catastrophic failure  

From engineered pandemics to city-toppling cyber attacks to nuclear annihilation, life on Earth could radically change, and soon.

what do you think?

2021-04-16 06:09:54



Transparent nanolayers for more solar power  

There is no cheaper way to generate electricity today than with the sun. Solar cells available on the market based on crystalline silicon make this possible with efficiencies of up to 23 percent. With even higher efficiencies of more than 26 percent, costs could fall further. An international working group led by photovoltaics researchers now plan to reach this goal with a nanostructured, transparent material for the front of solar cells.

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2021-04-16 05:23:44



New CRISPR technology offers unrivaled control of epigenetic inheritance  

Scientists have figured out how to modify CRISPR's basic architecture to extend its reach beyond the genome and into what's known as the epigenome -- proteins and small molecules that latch onto DNA and control when and where genes are switched on or off.

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2021-04-16 05:12:21



Fast radio bursts shown to include lower frequency radio waves than previously detected  

A team of researchers has established that fast radio bursts (FRBs) include radio waves at frequencies lower than ever detected before, a discovery that redraws the boundaries for theoretical astrophysicists trying to put their finger on the source of FRBs.

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2021-04-16 04:52:49



In pig brain development, nature beats nurture  

Before humans can benefit from new drug therapies and nutritional additives, scientists test their safety and efficacy in animals, typically mice and rats. But, as much as they've done for biomedical research, rodents aren't always the best research model for studies on neonatal brain development and nutrition. That's where pigs can play an important role.

what do you think?

2021-04-16 04:44:30



Female protective effect: Researchers find clues to sex differences in autism  

Researchers have found that autism may develop in different regions of the brain in girls than boys and that girls with autism have a larger number of genetic mutations than boys, suggesting that they require a larger 'genetic hit' to develop the disorder.

what do you think?

2021-04-16 04:44:12



Study shows past COVID-19 infection doesn't fully protect young people against reinfection  

Results of a new study suggest vaccination against COVID-19 remains crucial even in young adults who were previously infected.

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2021-04-16 04:37:37



These Endangered Birds Are Forgetting Their Songs  

Australia’s critically endangered regent honeyeaters are losing what amounts to their culture—and that could jeopardize their success at landing a mate. -- Read more on ScientificAmerican.com

what do you think?

2021-04-16 04:28:30



How to gain a sense of well-being, free and online  

In 2018, when Professor Laurie Santos introduced her course 'Psychology and the Good Life,' a class on the science of happiness, it became the most popular in the history of Yale, attracting more than 1,200 undergraduate enrollees that first semester. An online course based on those teachings became a global phenomenon. By latest count, 3.38 million people have enrolled to take the free Coursera.org course, called 'The Science of Well Being.'

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2021-04-16 04:08:48



Tarantula's ubiquity traced back to the cretaceous  

Tarantulas are among the most notorious spiders, due in part to their size, vibrant colors and prevalence throughout the world. But one thing most people don't know is that tarantulas are homebodies. Females and their young rarely leave their burrows and only mature males will wander to seek out a mate. How then did such a sedentary spider come to inhabit six out of seven continents?

what do you think?

2021-04-16 03:56:19



Triangular-shaped spikes key to coronavirus transmission, finds new study  

Scientists have modeled the spikes of the coronavirus particle to unravel how their shape and number may influence the transmissibility of the virus.

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2021-04-16 03:51:46



Virologists develop broadly protective coronavirus vaccines  

A candidate vaccine that could provide protection against the COVID-19 virus and other coronaviruses has shown promising results in early animal testing.

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2021-04-16 03:50:44



Scientists may detect signs of extraterrestrial life in the next 5 to 10 years  

Research shows that a new telescope could detect a potential signature of life on other planets in as little as 60 hours.

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2021-04-16 03:33:23



National Park Nature Walks, Episode 5: A Northwoods Voyage  

Here is our next installment of a new pop-up podcast miniseries that takes your ears into the deep sound of nature. Host Jacob Job, an ecologist and audiophile, brings you inches away from a... -- Read more on ScientificAmerican.com

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2021-04-16 03:25:23



Grave goods show gendered roles for Neolithic farmers  

Grave goods, such as stone tools, have revealed that Neolithic farmers had different work-related activities for men and women.

what do you think?

2021-04-16 03:20:08



Snake species from different terrains surrender surface secrets behind slithering success  

Some snake species slither across the ground, while others climb trees, dive through sand or glide across water. Today, scientists report that the surface chemistry of snake scales varies among species that negotiate these different terrains. The findings could have implications for designing durable materials, as well as robots that mimic snake locomotion to cross surfaces that would otherwise be impassable.

what do you think?

2021-04-16 02:59:43



COVID-19: Scientists identify human genes that fight infection  

Scientists have identified a set of human genes that fight SARS-CoV-2 infection, the virus that causes COVID-19. Knowing which genes help control viral infection can greatly assist researchers' understanding of factors that affect disease severity and also suggest possible therapeutic options. The genes in question are related to interferons, the body's frontline virus fighters.

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2021-04-16 02:54:23



How we can reduce food waste and promote healthy eating  

Food waste and obesity are major problems in developed countries. They are both caused by an overabundance of food, but strategies to reduce one can inadvertently increase the other. A broader perspective can help identify ways to limit food waste while also promoting healthy nutrition, researchers suggest.

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2021-04-16 02:01:08



Coping Strategies of Ocean Castaways Hold Lessons for the COVID Pandemic  

Shipwreck victims cast adrift for weeks or months exhibit a resilience that serves as a model to weather any extended crisis -- Read more on ScientificAmerican.com

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2021-04-16 01:52:10



Blow flies may be the answer to monitoring the environment non-invasively  

A study led by researchers at IUPUI has found that blow flies may be the answer to monitoring environmental change without disturbing local wildlife.

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2021-04-16 01:47:50



Reliable COVID-19 short-term forecasting  

Researchers have developed a new model for making short-term projections of daily COVID-19 cases that is accurate, reliable and easily used by public health officials and other organizations.

what do you think?

2021-04-16 01:41:14



The light-bending dance of binary black holes  

A pair of orbiting black holes millions of times the Sun's mass perform a hypnotic pas de deux in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas - called an accretion disk - that surrounds each one.

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2021-04-15 21:08:44



Good dental health may help prevent heart infection from mouth bacteria  

Good oral hygiene and regular dental care are the most important ways to reduce risk of a heart infection called infective endocarditis caused by bacteria in the mouth. There are four categories of heart patients considered to be at highest risk for adverse outcomes from infective endocarditis, and only these patients are recommended to receive preventive antibiotic treatment prior to invasive dental procedures.

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2021-04-15 20:59:08



Self-assembling nanofibers prevent damage from inflammation  

Biomedical engineers have developed a self-assembling nanomaterial that can help limit damage caused by inflammatory diseases by activating key cells in the immune system. In mouse models of psoriasis, the team showed that their nanofiber-based drug could effectively mitigate damaging inflammation as effectively as a gold-standard therapy.

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2021-04-15 20:57:02



The architect of genome folding  

The DNA molecule is not naked in the nucleus. Instead, it is folded in a very organized way by the help of different proteins to establish a unique spatial organization of the genetic information. This 3D spatial genome organization is fundamental for the regulation of our genes and has to be established de novo by each individual during early embryogenesis. Researchers now reveal a yet unknown and critical role of the protein HP1a in the 3D genome re-organization after fertilization. The study

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2021-04-15 18:31:03



Fight or Flight? Why Our Caveman Brains Keep Getting Confused  

Once an evolutionary benefit that helped keep our ancestors alive, cortisol, the hormone that triggers our fight-or-flight response, may now be doing more harm than good. 

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2021-04-15 18:27:42



Baked meteorites yield clues to planetary atmospheres  

In a novel laboratory investigation of the initial atmospheres of Earth-like rocky planets, researchers heated pristine meteorite samples in a high-temperature furnace and analyzed the gases released. Their results suggest that the initial atmospheres of terrestrial planets may differ significantly from many of the common assumptions used in theoretical models of planetary atmospheres.

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2021-04-15 18:01:34



Mystery canine illness identified: Animal coronavirus  

An outbreak of vomiting among dogs has been traced back to a type of animal coronavirus by researchers. Vets across the country began reporting cases of acute onset prolific vomiting in 2019/20.

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2021-04-15 16:57:36



Doctors Should Talk to Patients about Firearm Injury Prevention  

It’s a major public health issue, and discussing it should part of routine care, no different than questions about health risk factors like smoking, substance use and diet -- Read more on ScientificAmerican.com

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2021-04-15 15:30:29



There is no 'one size fits all' approach to treat severe asthma  

Despite a similar clinical presentation, people with severe asthma have strikingly distinct immune profiles, research shows. These findings can be used to develop new therapeutics and enhance precision medicine approaches to treating these patients.

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2021-04-15 15:28:13



Reliably measuring oxygen deficiency in rivers or lakes  

Wastewater carries large quantities of organic substances into the rivers and lakes, leading to heavy growth of bacteria and oxygen deficiency. Measurement methods have so far been incapable of measuring this organic pollution precisely. A new method should provide a clear image of the water conditions in the future.

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2021-04-15 15:10:48



Efforts to stop spread of COVID-19 should focus on preventing airborne transmission, experts say  

Any future attempts to reduce the spread of COVID-19 should be focused on tackling close airborne transmission of the virus which is considered to be the primary route for its circulation, say experts in a new editorial.

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2021-04-15 15:04:13



Forest elephants are now critically endangered -- here's how to count them  

Scientists compared methodologies to count African forest elephants (Loxodonta cyclotis), which were recently acknowledged by IUCN as a separate, Critically Endangered species from African savannah elephants.

what do you think?

2021-04-15 14:40:22



One year of SARS-CoV-2 evolution  

Researchers have published an in-depth look at the SARS-CoV-2 mutations that have taken place during the past year. The review discusses the findings of over 180 research articles and follows the changes that have taken place in the SARS-CoV-2 genome, and the variants that have occurred as a result.

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2021-04-15 14:11:53



Bearded dragon embryos become females either through sex chromosomes or hot temperatures  

Bearded dragon embryos can use two different sets of genes to become a female lizard -- one activated by the sex chromosomes and the other activated by high temperatures during development, researchers report.

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2021-04-15 13:31:45



A Mysterious Mass in a Man's Kidney Points to Cancer. But What Else Could It Be?   

One minute, Albert was feeling fine. The next he was overcome by cramps and nausea. Then came the blood.

what do you think?

2021-04-15 13:17:31



Picosecond electron transfer in peptides can help energy technologies  

An international team of researchers has observed picosecond charge transfer mediated by hydrogen bonds in peptides. A picosecond is one trillionth of a second. As short-chain analogs of proteins, crucially important building blocks of living organisms, peptides are chains of chemically linked amino acids. The discovery shows the role of hydrogen bonds in electron transfer.

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2021-04-15 12:23:14



Youth Leaders for Climate Justice Say, 'We Are Ready to Work'  

Inspiring individuals from Argentina, Colombia and Kuwait lay out actions that can improve people’s lives -- Read more on ScientificAmerican.com

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2021-04-15 11:58:29



How many T. rexes were there? Billions  

With fossils few and far between, paleontologists have shied away from estimating the size of extinct populations. But UC Berkeley scientists decided to try, focusing on the North American predator T. rex. Using data from the latest fossil analyses, they concluded that some 20,000 adults likely roamed the continent at any one time, from Mexico to Canada. The species survived for perhaps 2.5 million years, which means that about 2.5 billion lived and died overall.

what do you think?

2021-04-15 11:51:50



Lipid research may help solve COVID-19 vaccine challenges  

New research could help solve a major challenge in the deployment of certain COVID-19 vaccines worldwide -- the need for the vaccines to be kept at below-freezing temperatures during transport and storage. Researchers demonstrate a new, inexpensive technique that generates crystalline exoskeletons around delicate liposomes and other lipid nanoparticles and stabilizes them at room temperature.

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2021-04-15 10:52:58



A neuromagnetic view through the skull  

The brain processes information using both slow and fast currents. Until now, researchers had to use electrodes placed inside the brain in order to measure the latter. Researchers have now successfully visualized these fast brain signals from the outside -- and found a surprising degree of variability.

what do you think?

2021-04-15 10:08:12



Dueling evolutionary forces drive rapid evolution of salamander coloration  

Two opposing evolutionary forces explain the presence of the two different colors of spotted salamander egg masses at ponds in Pennsylvania, according to a new study. Understanding the processes that maintain biological diversity in wild populations may allow researchers to predict how species will respond to global change.

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2021-04-15 09:34:41



The 5 Most Important Scientific Equations of All Time  

Calculating the most influential scientific equations is no easy task. But these five certainly rank in the top tier.

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2021-04-15 08:52:31



Modelling ancient Antarctic ice sheets helps us see future of global warming  

In order to get a sense of what our future may hold, scientists have been looking to the deep past. Now, new research from the University of Massachusetts Amherst, which combines climate, ice sheet and vegetation model simulations with a suite of different climatic and geologic scenarios, opens the clearest window yet into the deep history of the Antarctic ice sheet and what our planetary future might hold.

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2021-04-15 08:46:44



Scientists generate human-monkey chimeric embryos  

Investigators have injected human stem cells into primate embryos and were able to grow chimeric embryos for a significant period of time -- up to 20 days. The research, despite its ethical concerns, has the potential to provide new insights into developmental biology and evolution. It also has implications for developing new models of human biology and disease.

what do you think?

2021-04-15 08:35:50



AI pinpoints local pollution hotspots using satellite images  

Researchers have developed a method that uses machine learning, satellite imagery and weather data to autonomously find hotspots of heavy air pollution, city block by city block. The technique could be a boon for finding and mitigating sources of hazardous aerosols, studying the effects of air pollution on human health, and making better informed, socially just public policy decisions.

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2021-04-15 08:29:22



Those who had COVID-19 may only need one vaccine dose, study suggests  

Those recovered from COVID-19 had a robust antibody response after the first mRNA vaccine dose, but little immune benefit after the second dose, according to new research. The findings suggest only a single vaccine dose may be needed to produce a sufficient antibody response. Those who did not have COVID-19 did not have a full immune response until after receiving their second vaccine, reinforcing the importance of the two recommended doses.

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2021-04-15 06:57:05



What Should We Do if Extraterrestrials Show Up?  

It’s hard to say at this point, but a crucial first step is to establish whether they exist so any future arrival won’t come as a complete surprise -- Read more on ScientificAmerican.com

what do you think?

2021-04-15 06:48:43



RNA holds the reins in bacteria: Researchers observe RNA controlling protein synthesis  

To better understand how RNA in bacteria gives rise to protein -- and potentially target these processes in the design of new antibiotics -- researchers are turning their attention to the unique way this process happens in bacteria. Researchers have directly observed previously hidden RNA regulatory mechanisms within bacteria.

what do you think?

2021-04-15 06:45:02



Stretching the boundaries of medical tech with wearable antennae  

Current research on flexible electronics is paving the way for wireless sensors that can be worn on the body and collect a variety of medical data. But where do the data go? Without a similar flexible transmitting device, these sensors would require wired connections to transmit health data.

what do you think?

2021-04-15 06:15:28



How the humble woodchip is cleaning up water worldwide  

Australian pineapple, Danish trout, and Midwestern U.S. corn farmers are not often lumped together under the same agricultural umbrella. But they and many others who raise crops and animals face a common problem: excess nitrogen in drainage water. Whether it flows out to the Great Barrier Reef or the Gulf of Mexico, the nutrient contributes to harmful algal blooms that starve fish and other organisms of oxygen.

what do you think?

2021-04-15 06:06:41



Get your head in the game -- One gene's role in cranial development  

Researchers have found that certain cells in mouse craniums respond to increased expression of a gene called Dlx5 during early stages of embryonic development. They observed that a layer of these cells formed more bone and cartilage in mice engineered with high Dlx5 levels. Their interesting results provide crucial information for the mechanistic role of this gene in cell fate during cranial development.

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2021-04-15 05:52:56



Mindfulness can make you selfish  

A new article demonstrates the surprising downsides of mindfulness, while offering easy ways to minimize those consequences -- both of which have practical implications for mindfulness training.

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2021-04-15 05:25:31



Climate change is making it harder to get a good cup of coffee  

Ethiopia may produce less specialty coffee and more rather bland tasting varieties in the future. This is the result of a new study by an international team of researchers that looked at the peculiar effects climate change has on Africa's largest coffee producing nation. Their results are relevant both for the country's millions of smallholder farmers, who earn more on specialty coffee than on ordinary coffee, as well as for baristas and coffee aficionados around the world.

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2021-04-15 05:23:24



How Plant 'Vaccines' Could Save Us From a World Without Fruit  

Researchers are formulating unconventional solutions for tree diseases that harm beloved foods like oranges and chocolate. These include a potential RNA therapy, similar to certain COVID-19 vaccines.

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2021-04-15 05:03:35



Psilocybin Therapy May Work as Well as Common Antidepressant  

For the first time, a randomized controlled trial shows the psychedelic offers potent, if short-term, relief in comparison with an SSRI -- Read more on ScientificAmerican.com

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2021-04-15 04:50:38



From smoky skies to a green horizon: Scientists convert fire-risk wood waste into biofuel  

Reliance on petroleum fuels and raging wildfires: Two separate, large-scale challenges that could be addressed by one scientific breakthrough. Researchers have developed a streamlined and efficient process for converting woody plant matter like forest overgrowth and agricultural waste - material that is currently burned either intentionally or unintentionally - into liquid biofuel.

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2021-04-15 04:43:06



3D-printed material to replace ivory  

A new material called 'Digory' has been developed, which can be processed in 3D printers and is extremely similar to ivory. It can be used to restore old ivory artefacts.

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2021-04-15 02:45:35



A Digital Obsession  

How to feel less stressed and more empowered and to create a life of meaning—without your phone -- Read more on ScientificAmerican.com

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2021-04-15 02:36:34



Using sound waves to make patterns that never repeat  

Mathematicians and engineers have teamed up to show how ultrasound waves can organize carbon particles in water into a sort of pattern that never repeats. The results, they say, could result in materials called 'quasicrystals' with custom magnetic or electrical properties.

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2021-04-15 02:25:16



Transforming circles into squares  

Researchers have developed a method to change a cellular material's fundamental topology at the microscale.

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2021-04-15 02:12:44



Roadside invader: The higher the traffic, the easier the invasive common ragweed disperses  

Common ragweed is an annual plant whose allergenic pollen affects human health. It's an invasive species particularly well-adapted to living at roadsides. New research found high population growth along high-traffic roads even in shaded and less disturbed road sections, suggesting that seed dispersal by vehicles and by road maintenance can compensate, at least partly, for less favorable habitat conditions.

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2021-04-15 02:04:36



To improve climate models, an international team turns to archaeological data  

To improve climate models, an international team turned to archaeological data. The resulting classification from the project, called LandCover6k, offers a tool the researchers hope might generate better predictions about the planet's future and fill in gaps about its past.

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2021-04-15 01:59:43



Innovative technique developed to destroy cancerous kidney cells  

An innovative new technique that encourages cancer cells in the kidneys to self-destruct could revolutionize the treatment of the disease.

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2021-04-15 01:36:44



Marmots are Teaching Their Captive-Bred Friends How to Live in the Wild  

Once critically endangered, Vancouver Island marmots are now teaching each other how to recover.

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2021-04-15 01:31:30



Satellite map of human pressure on land provides insight on sustainable development  

The map shows a near-present snapshot of effects from deforestation, mining, expanding road networks, urbanization and increasing agriculture.

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2021-04-15 01:27:10



Schools Can Open Safely during COVID, the Latest Evidence Shows  

The risk of COVID transmission in schools is very low if precautions are taken -- Read more on ScientificAmerican.com

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2021-04-15 01:27:08



Tiny wireless implant detects oxygen deep within the body  

Engineers have created a tiny wireless implant that can provide real-time measurements of tissue oxygen levels deep underneath the skin. The device, which is smaller than the average ladybug and powered by ultrasound waves, could help doctors monitor the health of transplanted organs or tissue and provide an early warning of potential transplant failure.

what do you think?

2021-04-15 01:27:06



Auxin makes the spirals in gerbera inflorescences follow the Fibonacci sequence  

The meristem of the gerbera is patterned on the molecular level already at a stage where no primordia or other changes are discernible by even an electron microscope.

what do you think?

2021-04-15 01:24:36



Fast-spinning black holes narrow the search for dark matter particles  

An MIT study narrows the search for particles called ultralight bosons, which, if they exist, could be an important component of dark matter. Certain ultralight bosons would be expected to put the brakes on the spin of black holes, but the new results show no such slowdown.

what do you think?

2021-04-14 21:28:25



Biden's Earth Day Summit Is a Crucial Opportunity for Climate Action  

The president should commit to cutting U.S. emissions at least 50 percent below 2005 levels by 2030 -- Read more on ScientificAmerican.com

what do you think?

2021-04-14 20:07:46



Could Carbon Capture Technology Help the U.S. Meet Climate Change Commitments?   

The tech for capturing carbon dioxide is old. But it requires political will and money to implement these methods to curb greenhouse gas emissions.

what do you think?

2021-04-14 19:51:38






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