Новости за 06.06.2022

Photonics researchers have introduced a novel method to control a light beam with another beam through a unique plasmonic metasurface in a linear medium at ultra-low power. This simple linear switching method makes nanophotonic devices such as optical computing and communication systems more sustainable requiring low intensity of light.

A new study examines mathematical models designed to draw inferences about how evolution operates at the level of populations of organisms. The study concludes that such models must be constructed with the greatest care, avoiding unwarranted initial assumptions, weighing the quality of existing knowledge and remaining open to alternate explanations.

A recent study found that COVID-19 patients had a roughly 25% increased risk of developing a psychiatric disorder in the four months following their infection, compared with people who had other types of respiratory tract infections.

Gathering vision data for hundreds of vertebrates and invertebrates, biologists have deepened scientists' understanding of animal vision, including the colors they see. The researchers determined that animals adapted to land are able to see more colors than animals adapted to water. Animals adapted to open terrestrial habitats see a wider range of colors than animals adapted to forests.

Biomedical and genetic engineers have developed a process to change the color of a mouse's tissue to better image its internal physiology. The approach will help researchers isolate and remove sources of strong background noise in biomedical images, giving them unprecedented access to observe, influence and image biological processes with a swiftly developing imaging technique called photoacoustic imaging.

Materials theorists model a contoured surface overlaid with 2D materials and find it possible to control their electronic and magnetic properties. The discovery could simplify research into many-body effects, including quantum systems.

Many of us try to repress the thought of them, while others have come to accept them. Whatever your take on parasites is, they can tell scientists a lot about ecology, health and the environment.

Researchers found they could filter carbon dioxide from air and gas mixtures at promising rates using a proposed new textile-based filter that combines cotton fabric and an enzyme called carbonic anhydrase -- one of nature's tools for speeding chemical reactions.

Researchers are quantifying the effects of healthcare on the environment, specifically the particularly waste-heavy and energy-intensive specialty of orthopedic surgery. The researchers reviewed existing literature and found that while data is still sparse, efforts to reduce the carbon footprint of orthopedic surgery could make a huge impact.

A new study provides the first comprehensive explanation of how snake venom regulatory systems evolved -- an important example that illuminates the evolution of new complex traits.

The largest, highest quality analysis of data ever conducted reveals that genetically modified Bt corn has little impact on nontarget insects and other organisms, especially compared to growing conventional corn.

Innovative research is exploring the use of a new cell delivery method to help cells stick and stay where they're needed most.

A chemistry team has engineered a cobalt complex to act as a noninvasive chemical thermometer. They've done so by making the cobalt complex's nuclear spin ­-- a workhorse, fundamental magnetic property ­­-- mimic the agile, but less stable sensitivity of an electron's spin.

Biomedical engineers have developed an edible silk tag with a QR code, which scanned by a smartphone can then confirm authenticity of the whiskey or other liquids, such as liquid medications.

Researchers have created time machine-like simulations recreate the full life cycle of some of the largest collections of galaxies observed in the distant universe 11 billion years ago.

A tiny but loud, brightly colored songbird from subtropical Asia could be emerging as a new invasive species in Britain, threatening to dominate the dawn chorus of native Robins, Blackbirds and warblers. A new study warns the Red-billed Leiothrix could become as familiar in gardens, parks and woodland as Ring-necked Parakeets.

Over 200 years ago, a Spanish botanist described Artocarpus odoratissimus, a species of fruit-bearing tree found in Borneo and the Philippines. The Iban people, who are Indigenous to Borneo, know the tree to have two different varieties, which they call lumok and pingan, distinguished by their fruit size and shape. Despite this knowledge, Western botanists have long considered the tree as a single species, but a genetic analysis confirms the Iban people were right all along.

Trees planted in the tropics as part of nations' reforestation commitments can have unintended consequences, sometimes degrading biodiversity hotspots, damaging ecosystems like grasslands, or encroaching on protected areas.

Researchers have found that some people with schizophrenia have autoantibodies -- which are made by the immune system and recognize the body's own proteins, rather than outside threats such as viruses or bacteria -- against NCAM1, a protein that's important for communication between brain cells. The patients' autoantibodies also caused schizophrenia-related behaviors in mice. These findings may improve the diagnosis and treatment of a subset of patients with schizophrenia.

The much-loved red panda is renowned for its tree-climbing ability and adorable nature, but new research shows the endangered mammal is being driven closer to extinction.

Researchers have used intersecting light beams to control chemical reactions in an advanced material, paving the way for future use in 3D printers that print entire layers, instead of single points, at a time.

A new study finds that Australian teens had overall improvements in sleep over the two years and some improvements in dietary choices during lockdown, but these were offset by increases in already concerning levels of screen time and worrying trends of alcohol use and poor sleep among girls.

Researchers have uncovered the molecular mechanism responsible for turning migratory actions on and off in nematode worms. The team found that the protein syntaxin plays a vital role in storing memory in the nervous system, and that altering it can affect the migratory behavior of nematodes. This line of research could one day help us better understand the migratory behavior of larger species such as mammals.

In order to quickly detect the presence of the influenza A virus, researchers developed a fluorogenic probe that could bind to the promoter region. A fluorogenic probe uses tiny molecules called fluorophores that emit light when a specific target is present.

Scientists have demonstrated how predators overcome their preys' erratic behavior by adapting their own during the hunt.