Новости за 07.03.2022

Phosphatidylinositol 3-kinase, or PI3K for short, is a family of lipid kinases that plays a key role in the human body, performing functions such as cell division, metabolism, and cell growth.

Before a drop of treated water in California ever reaches a consumer's faucet, about 8% of it has already been wasted due to leaks in the delivery system. Nationally, the waste is even higher, at 17%. This represents an untapped opportunity for water savings, according to a study from the University of California, Davis.

Island foxes are masters of survival. Having lived and evolved on the windswept, rugged and relatively remote Channel Islands off the coast of California for thousands of years, the cat-sized canids have quite a few tricks up their sleeves. Their small size, for one, is an adaptation to their resource-limited surroundings. And they're not primarily nocturnal like their mainland cousins, allowing them to hunt and forage at any hour.

Legal documents, such as contracts or deeds, are notoriously difficult for nonlawyers to understand. A new study from Massachusetts Institute of Technology (MIT) cognitive scientists has determined just why these documents are often so impenetrable.

Scientists at the University of Portsmouth believe a strategy used to protect popular surfing spots could now be more widely adopted to help preserve endangered coastal environments.

In the battle against disease transmission, pork farmers have to look out for more than just sick pigs. Researchers from North Carolina State University have modeled nine different potential transmission routes for porcine reproductive and respiratory syndrome virus (PRRSV), and found that trucks used to move not only animals, but also farm workers and feed, can be carriers for disease spread.

New computer models and simulations from Los Alamos National Laboratory are showing researchers how the virus that causes COVID-19 manages to use its spike protein to fuse with and infect human cells. To be presented at the March meeting of the American Physical Society, the atomistic-level imagery is highly consistent with cryo-electron microscopy data, despite the severe challenges of imaging at such high resolution.

Finding love in a small isolated place can be tough when everyone is a familiar face, or when half the dating pool is already out because they're all close relatives.

Scientists at Pacific Northwest National Laboratory (PNNL) have released a unique data set containing more than 5 million raw data points on the movement, behavior, and location of juvenile Chinook salmon as they traveled down the Columbia River through hydroelectric dams on their way to the Pacific Ocean.

Within the 50,000 known species of spiders about 20 have developed a permanent social life characterized by a remarkable cooperation. Among these, one or two species hunt "in packs," such as the Anelosimus eximius spiders of French Guyana, whose colonies can house several thousand individuals of all ages, coexisting peacefully in gigantic webs that often reach several cubic meters. When prey falls into their web, the spiders instantly adopt astonishing behavior: Synchronizing their attack by coordinating phases of moving and stopping... Читать дальше...

The idea of food chains and food webs in the animal kingdom is simple: Remove a link or thread, and the system is broken. But nature is complex, and it's not always clear how the absence of one species may impact others.

Studying abroad in college can be a glamorous, once-in-a-lifetime learning opportunity.

The Biden administration is proposing stronger pollution regulations for new tractor-trailer rigs that would clean up smoky diesel engines and encourage new technologies during the next two decades.

A Skoltech professor and his Chinese colleagues have revised a key chemical concept, electronegativity, and determined this characteristic for all elements under varying pressures. The revamped notion of electronegativity provides a unified theoretical framework for understanding the numerous anomalies of high-pressure chemistry. The study came out in the Proceedings of the National Academy of Sciences journal.

Even before Russia invaded Ukraine, the prospect of industrial nations coming together to quickly enact meaningful cuts to greenhouse gas emissions seemed slim. But with Russia blowing apart the world order, advocates for international climate action say their cause is looking ever more bleak, just as the effects of warming are looking more ominous.

Like the charged power suit worn by Black Panther of Marvel Comics, UCF researchers have advanced NASA technologies to develop a power suit for an electric car that is as strong as steel, lighter than aluminum and helps boosts the vehicle's power capacity.

With its solar arrays installed, the spacecraft is close to its final configuration ahead of a planned August launch.

The world's first demonstration device for 1,000 tons/year production of gasoline from carbon dioxide (CO2) hydrogenation located in Zoucheng Industrial Park, Shandong province, China has completed its trial operation and technology assessment on March 4.

The Amazon rainforest may be nearing a "tipping point" of dieback, the point where rainforest will turn to savanna, a new study shows.

As the name implies, California market squid are often sold in stores and typically found between Baja California and Monterey Bay. So, the squid's periodic appearance in the Gulf of Alaska—about 1,200 kilometers (745 miles) north of its expected range—has given researchers pause.

After Black Lives Matter formed in 2013, in response to the acquittal of George Zimmerman in the killing of 17-year-old Trayvon Martin, new ways of talking about race gained traction.

This week, tensions between the fowl and one U.S. Postal Service worker reached a violent climax when the carrier killed a turkey while on duty, officials said, prompting an investigation by the California Department of Fish and Wildlife.

Global weather fluctuations called El Niño events are likely to become more frequent by 2040, a new study shows.

Today marks the 20th anniversary of the Advanced Camera for Surveys (ACS) aboard the NASA/ESA Hubble Space Telescope. On 7 March 2002 astronauts installed the ACS during Hubble Servicing Mission 3B, also known as STS-109. With its wide field of view, sharp image quality, and high sensitivity, the ACS delivers many of Hubble's most impressive images of deep space.

By examining earthquake models from a fresh perspective, Cornell engineers now show that the earthquake fracture energy—once thought to relate to how faults in the Earth's crust weaken—is related to how quakes stop.