Новости за 04.03.2021

Social distancing guidelines have reduced the spread of COVID-19, but lockdowns and isolation also have created or aggravated other well-being concerns, reports new research. Mayo Clinic investigators found a significant increase in loneliness and a decrease in feelings of friendship during the pandemic. The study, published Feb. 20 in the journal Social Science & Medicine, also showed disproportionate negative effects among women and those with poorer health.

For Black girls in the juvenile justice system, attention from a caregiver might amount to too much of a bad thing, a recent study suggests.

Close friends are important drivers of adolescent behavior, including college attendance, according to Steven Alvarado, assistant professor of sociology in the College of Arts and Sciences.

Volcanic eruptions, not natural variability, were the cause of an apparent "Atlantic Multidecadal Oscillation," a purported cycle of warming thought to have occurred on a timescale of 40 to 60 years during the pre-industrial era, according to a team of climate scientists who looked at a large array of climate modeling experiments.

Many species might be left vulnerable in the face of climate change, unable to adapt their physiologies to respond to rapid global warming. According to a team of international researchers, species evolve heat tolerance more slowly than cold tolerance, and the level of heat they can adapt to has limits.

Hearing the words "new species discovered" may conjure images of deep caves, uncharted rainforests, or hidden oases in the desert.

During the past 25 years astronomers have discovered a wide variety of exoplanets, made of rock, ice and gas, thanks to the construction of astronomical instruments designed specifically for planet searches. Also, using a combination of different observing techniques they have been able to determine a large number of masses, sizes, and hence densities of the planets, which helps them to estimate their internal composition and raises the number of planets which have been discovered outside the Solar System.

In nematode worms, a key controller allows the worm to sense when it needs food and when it feels full, and then changes its behavior accordingly. Jennifer Tullet of the University of Kent and colleagues report these new findings in a paper published March 4th in PLOS Genetics. They propose that a similar factor may control feelings of fullness in humans.

As light as possible and as strong as possible at the same time: These are the requirements for modern lightweight materials, such as those used in aircraft construction and the automotive industry. A research team from Helmholtz-Zentrum Geesthacht (HZG) and Hamburg University of Technology (TUHH) has now developed a new materials' design approach for future ultralight materials: Nanometer-sized metal struts that form nested networks on separate hierarchical levels provide amazing strength.

When a block of ice the size of Houston, Texas, broke off from East Antarctica's Amery Ice Shelf in 2019, scientists had anticipated the calving event, but not exactly where it would happen. Now, satellite data can help scientists measure the depth and shape of ice shelf fractures to better predict when and where calving events will occur, according to researchers.

When birds see a predator in their midst, one defensive strategy is to call out loudly, attracting other birds of the same or different species to do the same. Sometimes individuals within this 'mobbing flock' will fly over or at the predator or attack it directly.

Volunteer students at Beihang University have reportedly lived in the Lunar Palace 1 biosphere environment for 370 days. Media outlets have reported that two groups of students took turns living in the biosphere over the course of 370 days, and required minimal supplies from the outside.

A pair of researchers at Applied Physics has created what they describe as the first general model for a warp drive, a model for a space craft that could travel faster than the speed of light, without actually breaking the laws of physics. Alexey Bobrick, and Gianni Martire have written a paper describing their ideas for a warp drive and have published it in IOP's Classical and Quantum Gravity.

The narratives that define our culture are subtle sometimes. We all like the shared belief that hard work has good outcomes. For instance, you go to school to get a job. If you work hard in your job, you'll have a good life, live in your own house and achieve your dreams.

The global pandemic has seen an unprecedented drop in global emissions, with carbon dioxide down about 7% (or 2.6 billion tons) in 2020 overall compared to 2019.

Rare diseases are a special field in medical-pharmaceutical research and treatment today. "Rare" means that no more than five in 10,000 people suffer from a particular disease. Patients affected by a rare disorder are often severely restricted, both physically and in their social life, and require a high level of social and medical care.

A global effort by seabird researchers, including those from NIWA, has resulted in the first assessment of where the world's most threatened seabirds spend their time.

Much like the Jedis in Star Wars use the Force to control objects from a distance, scientists can use light or optical force to move very small particles. The inventors of this ground-breaking laser technology, known as "optical tweezers," were awarded the 2018 Nobel Prize in physics.

In a colorful solution to a dangerous problem, Australian scientists are adapting a component from cutting-edge solar cells to design a rapid, light-based detection system for deadly toxins.

While 64 countries cut their fossil fuel emissions between 2016 and 2019, an international team of researchers, including an Earth system scientist at UCI, stressed that an even more pronounced reduction is going to be necessary to meet Paris Agreement goals to tackle global warming. In a study published today in Nature Climate Change, the team reported that a drop of .16 billion tons of CO2 per year amassed by those 64 countries during the period is only 10% of 1-2 billion tons of cuts needed throughout... Читать дальше...

Lawrence Livermore National Laboratory (LLNL) scientists have achieved a near 100 percent increase in the amount of antimatter created in the laboratory.

Researchers from The Australian National University (ANU) have exposed a fatal flaw in the deadly parasite that causes malaria—one of the world's biggest killers.

For many Americans, time stuck in quarantine has been an opportunity to reassess and reorganize the space around them. Chances are, the arduous task began with a familiar refrain: Why do I have so much crap?

The world's first dedicated platypus refuge will be established to rescue the unique Australian animals from climate change-fuelled crises, as bushfires and drought increasingly threaten their habitat.

An Australian teenager has died after a suspected box jellyfish sting, authorities said Thursday, in a rare case believed to be the country's first such death in 15 years.