Новости за 13.06.2022

A new report from the Scientific Committee on Antarctic Research (SCAR) reveals how climate change is significantly impacting Antarctica's ice sheets, climate and ecosystems, with far-reaching global consequences.

Microorganisms, such as baker's yeast, can be used as cell factories to produce different chemicals and proteins, such as commonly used pharmaceuticals as insulin. By modifying the cell factories researchers are trying to increase the yield and speed of the production processes. In a new study published in Nature Communications, researchers in systems biology at Chalmers provide us with a new yeast model focusing on one of the limiting steps of the cell factory production—the secretory pathway.

A detailed analysis of the composition and motion of more than 500 stars has revealed conclusive evidence of an ancient collision between Andromeda and a neighboring galaxy. The findings, which improve our understanding of the events that shape galaxy evolution, were presented by Carnegie's Ivanna Escala Monday at the meeting of the American Astronomical Society.

The snow that falls in the mountains is good for more than just skiing, snowshoeing and breathtaking vistas. The snowpack it creates will eventually melt, and that water can be used for hydropower, irrigation and drinking water.

Counties that don't cooperate with Immigration and Customs Enforcement (ICE)—also known as "sanctuary counties"—have seen their crime rates decrease after implementing sanctuary policies, according to a new study from a researcher at The University of Texas at Austin.

The production of chemical substances normally requires environmentally harmful solvents. After the research group of Miriam Unterlass, professor of solid state chemistry at the University of Konstanz, produced organic substances without harmful substances for the first time by heating them in hot water, the researchers can now chalk up another success: Through hydrothermal synthesis, they succeeded in jointly forming and combining organic and inorganic substances in the same reaction vessel—specifically... Читать дальше...

North Carolina State University researchers show that the shape of flowers has the biggest effect on how parasites are transmitted to bees, an important consideration for declining populations of our prodigious pollinators. The findings could help stakeholders plant flowers that are less likely to spread parasites in pollinator habitats.

Strength in numbers and experienced individuals are both vital in mongoose warfare, new research shows.

As climate change shifts precipitation patterns, irrigation can be a powerful tool for increasing the world's food supply—feeding more than a billion additional people without converting natural spaces into farmland, according to a new study by Carnegie's Lorenzo Rosa published in Environmental Research Letters.

For some people, wigs are a fun and colorful fashion accessory, but for those with hair loss from alopecia or other conditions, they can provide a real sense of normalcy and boost self-confidence. Whether made from human or synthetic strands, however, most hairpieces lose their luster after being worn day after day. Now, researchers in ACS Applied Materials & Interfaces report a new way to make wigs more durable and long lasting.

Many different types of bacteria and viruses can cause pneumonia, but there is no easy way to determine which microbe is causing a particular patient's illness. This uncertainty makes it harder for doctors to choose effective treatments because the antibiotics commonly used to treat bacterial pneumonia won't help patients with viral pneumonia. In addition, limiting the use of antibiotics is an important step toward curbing antibiotic resistance.

The deep ocean is a dark place, yet deep-diving seals can easily locate their prey in that darkness. A multi-national research team has used field-based studies to better understand how seals use their whiskers in their search for prey.

Historic virus infections can be traced in vertebrate genomes. For millions of years, these genomes have been repositories for retroviruses that incorporated their code into germline cells and were inherited as endogenous retroviruses (ERVs). Researchers from Uppsala University now provide new findings about retroviral establishment in the koala genome. The findings are being published in the journal PNAS.

Oregon State University scientists have identified proteins that prevent a bacterial cell from becoming misguided by its own messaging, allowing it to instead wait for collective communication from its group.

Child-support policies that are color-blind or race-neutral put low-income men of color and their families at a disadvantage and lead to continued racial inequities, according to Rutgers research.

New research detected strong polarization from a young supernova remnant. It provided independent and solid evidence that the cosmic dust in the early universe was formed in supernovae. While it's true that supernovae eject and destroy cosmic dust, infrared observations now suggest that the dust formed at an early stage of a supernova. SOFIA HAWC+ (Stratospheric Observatory for Infrared Astronomy High-Resolution Airborne Wideband Camera Plus) Band D observations of the young supernova remnant (SNR)... Читать дальше...

Scientists say they have identified the exact mechanism responsible for the exceptional tsunami that spread quickly across the world after the colossal eruption of the Tonga volcano earlier this year.

The old adage that oil and water don't mix isn't entirely accurate. While it's true that the two compounds don't naturally combine, turning them into one final product can be done. You just need an emulsifier, an ingredient commonly used in the food industry.

A new study led by Iowa State University researchers shows how artificial light has affected the natural seasonal processes of plants in urban regions of the United States.

Researchers at Karolinska Institutet in Sweden show how a molecule that they have identified stimulates the formation of new insulin-producing cells in zebrafish and mammalian tissue, through a newly described mechanism for regulating protein synthesis. The results are published in Nature Chemical Biology.

Police use of violence, especially against Black people, may threaten police agencies' effectiveness by reinforcing residents' legal cynicism and leading to disengagement from police. For example, after the killing by police of George Floyd, a Milwaukee police official said local residents cooperated less with police than they did before the killing.

Giant concrete barriers separate a field of jagged rocks from a grassy playground at Rogers Park Beach on Lake Michigan. There is no white sand. Only "do not swim" signs spray-painted on the uninviting blocks.

If the Supreme Court rules to overturn Roe v. Wade this month, lawmakers and law enforcement may have varied means to go after women and health care providers who participate in abortions in large part because of technology that didn't exist before the 1973 landmark ruling protecting abortion rights.

Many dog lovers want to know what goes on in their furry friends' minds. Now scientists are finally getting closer to the answer. In a new study just published in the journal Animal Cognition, researchers from the Family Dog Project (Eötvös Loránd University University, Budapest) found that dogs have a multi-modal mental image of their familiar objects. This means that when thinking about an object, dogs imagine the object's different sensory features, for instance, the way it looks or the way its smells.

Cardiovascular diseases are the leading cause of death across the globe, responsible for about 17.9 million (32%) of all deaths worldwide every year. Monitoring and treatment may reduce the incidence of death, but the health care options are limited by the rigidity and biological incompatibility of conventional devices, such as blood pressure sensors. There may be an answer in nanomaterials, according to researchers from Peking University in China, although more research is needed before practical application.