Новости за 23.02.2021

By the end of the year, Hayley Arceneaux will be the youngest American in space and one of the first tourists to enter orbit unaccompanied by professional astronauts.

In the last century, significant progress has been made in advancing gender equity in the United States. Women gained the right to vote, fathers have become more involved parents and more people and institutions recognize gender identities beyond the binary categories of male and female.

Using a 25-year record of satellite observations over the Getz region in West Antarctica, scientists have discovered that the pace at which glaciers flow towards the ocean is accelerating. This new research, which includes data from the Copernicus Sentinel-1 mission and ESA's CryoSat mission, will help determine if these glaciers could collapse in the next few decades and how this would affect future global sea-level rise.

Marine biologists have been able to visualize for the first time how tropical sponges and their symbiotic bacteria work together to consume and recycle organic food. The research led by Meggie Hudspith and Jasper de Goeij from the University of Amsterdam, was a collaborative project with colleagues from the Australian Universities of Sydney, Queensland and Western Australia, and the research institute Carmabi on Curaçao, and is now published in the scientific journal Microbiome.

University of Minnesota Medical School researchers have developed two new rapid diagnostic tests for COVID-19—one to detect COVID-19 variants and one to help differentiate with other illnesses that have COVID-19-like symptoms. The findings were recently published in the journal Bioengineering.

Researchers from the University of Illinois Chicago have discovered a new gene-editing technique that allows for the programming of sequential cuts—or edits—over time.

Fishing primarily removes larger and more active fish from populations. It thus acts as a selection factor that favors shy fish, as a recent study by the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) shows. The promotion of rather small, shy and overall harder to catch fish has consequences for the quality of the fishery and makes it difficult to accurately survey the development of fish stocks.

A team of researchers from the Hebrew University of Jerusalem (HUJI) led by Dr. Assaf Horesh have discovered the first evidence of radio flares emitted only long after a star is destroyed by a black hole. Published in the periodical Nature Astronomy, the discovery relied upon ultra-powerful radio telescopes to study these catastrophic cosmic events in distant galaxies called Tidal Disruption Events (TDE). While researchers had known that these events cause the release of radio flares, this latest... Читать дальше...

A team of researchers from the U.S. Fish and Wildlife Service, ViaGen, Revive & Restore, Pets & Equine, the Association of Zoos and Aquariums and San Diego Zoo Global has worked together to clone a black-footed ferret as part of an effort to preserve the endangered species. The work by the team has been chronicled on the U.S. Fish and Wildlife Service website.

A team of researchers at Universität Stuttgart has developed an ion-optics-based quantum microscope that is capable of creating images of individual atoms. In their paper published in the journal Physical Review Letters, the group explains how they built their microscope and how well it worked when tested.

Materials scientists must be able to exert ultrafast control of matter using a strong electromagnetic field on the atomic scale to understand the ionization dynamics and excitations in solids. Researchers can couple picosecond duration terahertz pulses to metallic nanostructures to generate extremely localized and intense electric fields. In a new report now on Science Advances, Angela Vella and a research team at the CNRS and the University Institute of France controlled field ion emission across from metallic nanotips. Читать дальше...

Using NASA's Swift and Chandra space observatories, astronomers have investigated an ultraluminous X-ray pulsar known as M51 ULX-7. The study, detailed in a paper published February 16 on the arXiv pre-print server, sheds more light on the X-ray variability of this source.

Younger, smaller trees that comprise much of North America's eastern forests have increased their seed production under climate change, but older, larger trees that dominate forests in much of the West have been less responsive, a new Duke University-led study finds.

Three years after a deadly virus struck India's endangered Asiatic lions in their last remaining natural habitat, conservationists are hunting for new homes to help booming prides roam free.

Medical suppliers must change how they manage their supply chains, and factories need to be able to rapidly pivot to manufacturing different products, in order to respond quickly to the next major crisis and avoid shortages of vital medical goods, experts say.

Climate change impacts are broad and far reaching. A new study by University of Oklahoma researchers from the Institute for Environmental Genomics explores the impacts of climate warming on microbial network complexity and stability, providing critical insights to ecosystem management and for projecting ecological consequences of future climate warming.

Researchers at the Center for Advanced Bioenergy and Bioproducts Innovation (CABBI) found that transitioning land enrolled in the Conservation Reserve Program (CRP) to bioenergy agriculture can be advantageous for American landowners, the government, and the environment.

Every spring, a small group of about a dozen gray whales pauses along an epic migration from calving lagoons in Baja California to their feeding grounds in the Arctic. They travel more than 170 miles off their coastal migration route, to stop off in northern Puget Sound. There, they linger from about March through May.

A vast redwood forest located 80 miles north of San Francisco and sprawling nearly as large as Big Basin Redwoods State Park in the Santa Cruz Mountains has received permanent protection under a deal between a Bay Area environmental group and the property's longtime owners.