Новости за 28.09.2021

Medical sensing technology has taken great strides in recent years, with the development of wearable devices that can track pulse, brain function, biomarkers in sweat and more. However, there is one big problem with existing wearable pressure sensors: Even the slightest amount of pressure, something as light as a tight long sleeve shirt over a sensor, can throw them off track.

NASA has tested the functions of Lucy, the agency's first spacecraft to study Jupiter's Trojan asteroids, filled it with fuel, and is preparing to pack it into a capsule for launch on Saturday, Oct. 16.

Someone on your favorite sports team is accused of date rape. A local city council candidate is charged in the sexual assault of a co-worker. Accusations surface about coaches of a gymnastics team.

An international team of researchers has used liquid gallium to create an antiviral and antimicrobial coating and tested it on a range of fabrics, including facemasks. The coating adhered more strongly to fabric than some conventional metal coatings, and eradicated 99% of several common pathogens within five minutes.

Ant colonies with a higher degree of genetic diversity thrive better than those that consist of individuals with more similar genetic backgrounds. This is the conclusion of an experimental study in which researchers compared various colonies of the common black ant with one another.

The webpages of Facebook are a seemingly endless source of news, connection, and entertainment for billions of people. A new study from the School of Public Health (SPH) also finds that the social networking platform functioned as a kind of informal emergency broadcast system for people seeking critical information and support during the pandemic.

NASA will stand down from commanding its Mars missions for the next few weeks while Earth and the Red Planet are on opposite sides of the Sun. This period, called Mars solar conjunction, happens every two years.

Most emerging infectious diseases of humans (like COVID-19) are zoonotic—caused by viruses originating from other animal species. Identifying high-risk viruses earlier can improve research and surveillance priorities. A study publishing in PLOS Biology on September 28th by Nardus Mollentze, Simon Babayan, and Daniel Streicker at University of Glasgow, United Kingdom suggests that machine learning (a type of artifical intelligence) using viral genomes may predict the likelihood that any animal-infecting virus will infect humans... Читать дальше...

Asian elephants are keen to cooperate with friends and have evolved strategies to mitigate competition in their social groups, but cooperation breaks down when food resources are limited, according to a study publishing September 28th in the open-access journal PLOS Biology by Li-Li Li at the Chinese Academy of Sciences in Yunnan, China, and colleagues. The study sheds light on the evolution of cooperative behavior in mammals.

A newly published theoretical and computer modeling study suggests that the world's most powerful lasers might finally crack the elusive physics behind some of the most extreme phenomena in the universe—gamma ray bursts, pulsar magnetospheres, and more.

UT Southwestern stem cell scientists find that stringent lineage tracing is crucial for studies of nerve cell regeneration. Their results, which are published in Cell, show that this tracing is far from routine in the field and suggest that earlier studies reporting "striking" regeneration results must be reexamined.

Climate change is redistributing biodiversity globally, and distributional shifts of organisms often follow the speed and direction of environmental changes. Research by scientists at Stony Brook University's School of Marine and Atmospheric Sciences (SoMAS) reveals that this phenomenon is affecting where large marine mammals are distributed relative to their prey species, which could have important implications for marine food web dynamics. Their findings are published in Scientific Reports.

For some teenagers, the new school year means reuniting with their friends. For others, it means an increase in anxiety and in the pressure to succeed and get good grades. According to researchers at the University of Ottawa, this can lead to perfectionism and, in turn, to anxiety and depression.

Multitude of conspiracy theories people believe in all over the world is astonishing. They actually accompany each significant event: a catastrophe, assassination, death of a famous person or, currently, the COVID-19 pandemic. Because the formation of a distorted image of reality is so widespread this topic has been dealt with by numerous scientists. Various studies, articles and books using psychological, sociological, political science, or anthropological approaches have been published. However... Читать дальше...

Scientists at King's have used advanced microscopy techniques including FRET-FLIM microscopy, computational image analysis, biochemical and cell biological approaches to reveal a novel mechanism in how mammalian cells tightly control cell migration.

Research by Wageningen Bioveterinary Research (WBVR) has shown that the risk of airborne transmission of high pathogenic avian influenza virus from infected wild birds is negligible. The research looked specifically at the airborne movement of particles from wild waterfowl droppings in the vicinity of poultry farms during the risk season for avian influenza (October to March). It also considered transmission via aerosolization, with the exhalations or coughs of wild waterfowl infected with avian... Читать дальше...

In today's digital infrastructure, the data-bits we use to send and process information can either be 0 or 1. Being able to correct possible errors that may occur in computations using these bits is a vital part of information processing and communication systems. But a quantum computer uses quantum bits, which can be a kind of mixture of 0 and 1, known as quantum super-position. This mixture is vital to their power—but it makes error correction far more complicated.

Scientists from McGill University develop stronger and tougher glass, inspired by the inner layer of mollusk shells. Instead of shattering upon impact, the new material has the resiliency of plastic and could be used to improve cell phone screens in the future, among other applications.

Researchers at the Paul Scherrer Institute PSI are the first to have joined two proteins together by means of a free-standing, rigid link. The structural element holds the two protein molecules together at a defined distance and angle, much the way a barbell handle connects two weights. This type of linkage could help, for example, to develop so-called virus-like particles for vaccines. The researchers report their results today in the journal Structure.

A Case Western Reserve University scientist has found that certain prehistoric horse-like mammals in South America evolved differently than their Northern Hemisphere counterparts despite similar changes in climate and ecosystems.

Bioelectrical sensors on the skin can be used to measure electrical signals in the body, like heart activity and muscle contraction. While that provides valuable information for clinicians, current bioelectrical sensor technology can be ineffective, uncomfortable, expensive, and difficult to manufacture.

Around the world, honeybees are dying in large numbers. This die-off is in part because of a deadly virus that can kill bees or impair their ability to return to the hives after foraging. But in a study published September 28 in the journal iScience, researchers show that a cheap and naturally occurring chemical compound could prevent or reverse the effects of the virus in bees. Bees that were fed the compound before becoming infected were nine times more likely to survive the virus after five days; by monitoring hives in real time... Читать дальше...

Whole-heart ventricular modeling has come a long way in recent years and is currently witnessing the evolution of a variety of computational approaches, especially within the realm of personalized technologies for patient-specific clinical applications.

New Research from Oxford University has revealed that shifts in the timing of egg laying by great tits in response to climate change vary markedly between breeding sites within the same woodland and that this variation is linked to the health of nearby oak trees.

Lava flowing from a volcano in Spain's Canary Islands picked up its pace on its way to the sea Tuesday, but scientists said it was impossible to estimate when the black-and-red stream of molten rock would reach the shore.