Новости за 18.05.2021

A team of researchers from the University of California, the NOAA/OAR Geophysical Fluid Dynamics Laboratory and the University of British Columbia has found via simulations that corals that replace poorly performing algae with more heat resistant varieties are more resistant to coral bleaching as oceans warm due to global warming. In their paper published in the journal Nature Climate Change, the group describes the factors that went into the development of their simulations and what they showed over time.

Landau damping, a phenomenon originally predicted by Lev Landau in 1946, is essential to ensure the collective beam stability in particle accelerators. By precisely measuring the strength of Landau damping, physicists can predict the stability of beams in high-energy colliders.

Astronomers report the discovery of a new ultra-metal-poor star as part of the Southern Photometric Local Universe Survey (S-PLUS). The newly found star, designated SPLUS J210428.01−004934.2, turns out to have the lowest carbon abundance among the ultra-metal-poor stars so far detected. The finding is detailed in a paper published May 10 on the arXiv pre-print repository.

Scientists believe that individual light particles, or photons, are ideally suited for sending quantum information. Encoded with quantum data, they could literally transfer information at the speed of light. However, while photons would make for great carriers because of their speed, they don't like to interact with each other, making it difficult to achieve quantum entanglement.

Four huge robot arms surround the gleaming metal shell of what will soon be a top-of-the-range automobile. They jerk into life, attaching the bonnet, the wing mirrors, and other panels. It's the kind of precision operation you can find at car factories around the world these days. But here's a question worth considering: could we pull off a feat like this only about a billion times smaller?

An international research team headed by Michal Hocek of the Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague) and Charles University and Ciara K. O'Sullivan of Universitat Rovira i Virgili (URV) in Spain have developed a novel method for labeling DNA, which in the future can be used for sequencing DNA by means of electrochemical detection. The researchers presented their results in the Journal of the American Chemical Society.

A group of eminent scientists has urged Australian governments, Federal and State, to adopt a zero pollution target for air, water and land.

Urban megaprojects tend to be the antithesis of good urban planning. They have a negative impact on local water systems, deprive local communities of water-related human rights, and their funders and sponsors have little accountability for their impact.

While scientists have amassed considerable knowledge of the rocky planets in our solar system, like Earth and Mars, much less is known about the icy water-rich planets, Neptune and Uranus.

Genes are encoded in DNA, and closely related species will often have the same genes in the same order in the genome. However, over millions of years of evolution, this shared gene order gets lost as the DNA gets broken, repaired and reshuffled.

At a glance, the sparkling waters of the Southern California coast appear healthy. But a deeper dive into the water's chemical composition reveals high levels of algae and low levels of oxygen.

Imagine a bottle of salad dressing containing oil and vinegar. The oil has a lower density than vinegar, so it floats on the vinegar. The oil will not stay trapped under the vinegar if the bottle is flipped upside down. It will bubble up through the vinegar until a stable state is restored.

A global effort to reduce sulfur and greenhouse gas (GHG) emissions from ships has researchers from the National Renewable Energy Laboratory (NREL) and other Department of Energy facilities investigating the potential use of marine biofuels.

After glimpsing faint but widespread super-heated material in the Sun's outer atmosphere, a NASA sounding rocket is going back for more. This time, they're carrying a new instrument optimized to see it across a wider region of the Sun.

Fossils of land animals from South America have been found in the Antilles, but how did these animals get there? According to scientists from the CNRS, l'Université des Antilles, l'Université de Montpellier and d'Université Côte d'Azur, land emerged in this region and then disappeared beneath the waves for millions of years, explaining how some species were able to migrate to the Antilles. This study will be published in June 2021 issue in Earth-Science Reviews.

Hydrogen is considered an important energy carrier with the potential to reshape the energy landscape in the future. Distributing large amounts of hydrogen requires safe steel pipelines. Steel pipelines can become brittle due to hydrogen and can therefore break. Fascinated by this urgent problem, Carey Walters (MTT), Othon Moultos (P&E) and Poulumi Dey (MSE) joined forces and turned to the cohesion programme to work on this together.

In the subzero twilight of Nov. 27, 1950, embedded next to the Chosin Reservoir and surrounded by the slopes of treacherous terrain, the 1st Battalion, 7th Regiment of the 1st Marine Division found itself at the center of a closing circle—and an early but crucial battle in the Korean War.

It is generally believed that double-peaked broad emission lines originate from an elliptical disk. Appearance or disappearance of the broad Balmer emission lines correspond to type 1 and type 2 active galactic nuclei (AGNs), respectively. Hence, the name changing-look AGN.

Recently, a group led by Prof. WANG Junhu from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) constructed a novel type of strong metal-support interaction (SMSI) through the melamine/urea catalyst modification and oxidation atmosphere calcination, and developed a new strategy to improve the stability of platinum group metals (PGMs) catalysts.

Rice is one of the most important staple foods in the world, and increasing rice production is crucial to the rapid growth of the global population.

If you lived on the West Coast anytime in the past several years, you may remember news of "the Blob"—not a horror movie monster but a mass of warm water that resulted from a marine heat wave in 2014 and 2015. A new publication led by a San Francisco State University alumna shows how that ocean anomaly brought whales and Dungeness crab fishers on a collision course—the newest in a line of research from the lab of Professor of Geography & Environment Ellen Hines showing the complicated and not... Читать дальше...

Alterations in the epigenetic programming of hatchery-raised steelhead trout could account for their reduced fertility, abnormal health and lower survival rates compared to wild fish, according to a new Washington State University study.

Ants are renowned in the insect world for their complex social structure and behaviors. Workers and foragers support the queen, faithfully carrying out their social roles for the overall health of the colony. This complex "superorganism" —-as scientists have dubbed it —- has become a prime model to explore the genetic and behavioral roots of social organisms.

Pollinators in the tropics are less likely to thrive in intensive croplands, finds a new study led by UCL researchers suggesting bees and butterflies are at risk of major losses.

A newly discovered quasicrystal that was created by the first nuclear explosion at Trinity Site, N.M., on July 16, 1945, could someday help scientists better understand illicit nuclear explosions and curb nuclear proliferation.