Новости за 12.04.2021

When you're as rare and vulnerable as a black toad, you can't afford to be coy about romance.

When wildfires ripped through Oregon last Labor Day, they burned huge swaths of forest, including 63,000 acres of smaller, private lands.

A Denali glacier suddenly moving at a speedier clip is intriguing scientists, increasing the risk of nearby flooding and potentially closing off some climbing routes on the mountain this season.

Energy flows through a system of atoms or molecules by a series of processes such as transfers, emissions, or decay. You can visualize some of these details like passing a ball (the energy) to someone else (another particle), except the pass happens quicker than the blink of an eye, so fast that the details about the exchange are not well understood. Imagine the same exchange happening in a busy room, with others bumping into you and generally complicating and slowing the pass. Then, imagine how... Читать дальше...

Light can be used to operate quantum information processing systems, e.g. quantum computers, quickly and efficiently. Researchers at Karlsruhe Institute of Technology (KIT) and Chimie ParisTech/CNRS have now significantly advanced the development of molecule-based materials suitable for use as light-addressable fundamental quantum units. As they report in the journal Nature Communications, they have demonstrated for the first time the possibility of addressing nuclear spin levels of a molecular complex... Читать дальше...

In the earliest stage of life, animals undergo some of their most spectacular physical transformations. Once merely blobs of dividing cells, they begin to rearrange themselves into their more characteristic forms, be they fish, birds or humans. Understanding how cells act together to build tissues has been a fundamental problem in physics and biology.

What exactly happens when the corona virus SARS-CoV-2 infects a cell? In an article published in Nature, a team from the Technical University of Munich (TUM) and the Max Planck Institute of Biochemistry paints a comprehensive picture of the viral infection process. For the first time, the interaction between the coronavirus and a cell is documented at five distinct proteomics levels during viral infection. This knowledge will help to gain a better understanding of the virus and find potential starting points for therapies.

Researchers from the Low Energy Electronic Systems (LEES) Interdisciplinary Research Group (IRG) at Singapore-MIT Alliance for Research and Technology (SMART), MIT's research enterprise in Singapore, together with Massachusetts Institute of Technology (MIT) and National University of Singapore (NUS) have found a method to quantify the distribution of compositional fluctuations in the indium gallium nitride (InGaN) quantum wells (QWs) at different indium concentrations.

Researchers at the Laboratory of Cluster Catalysis at St Petersburg University have synthesized polymers from biomass. What makes them different is that they can be easily recycled.

The economies of northern Central Asia rely heavily on agriculture and are particularly affected by changes in the local hydrological cycle. However, this region is one of the largest dryland regions in the Northern Hemisphere and is facing a crisis of water resources shortage in recent decades. One example is the rapid desiccation and salinization of the Aral Sea. While the construction of dams, diversion of waterways and wasting of water have been blamed for the shortage, how climate change has... Читать дальше...

Clouds play a key role in balancing incoming and outgoing solar and thermal radiation. This is a critical process in the earth-atmosphere system. Monitoring cloud height, particle size, particle concentration, etc. are integral to understanding climate dynamics and global climate change. These physical attributes determine the radiative forcing effect of a cloud, or how much incoming radiation that a cloud reflects back to space. Satellites and ground-based radar can measure the cloud top height (CTH). Читать дальше...

A team of researchers from multiple institutions in the U.K. and the U.S. has learned more about the development of antimicrobial resistance by studying hundreds of samples of bacteria in their natural environments. In their paper published in the journal Science Advances, the group describes how they conducted genome sequencing on hundreds of bacterial samples collected from a wide variety of natural environments and what they learned by doing so.

Topological insulators have notable manifestations of electronic properties. The helicity-dependent photocurrents in such devices are underpinned by spin momentum-locking of surface Dirac electrons that are weak and easily overshadowed by bulk contributions. In a new report now published on Science Advances, X. Sun and a research team in photonic technologies, physics and photonic metamaterials in Singapore and the U.K. showed how the chiral response of materials could be enhanced via nanostructuring. Читать дальше...

By analyzing data from various astronomical surveys, astronomers have performed an exhaustive photometric and kinematical study of an open cluster known as NGC 1348. The new research, detailed in a paper published April 2 on arXiv.org, provides important information regarding the parameters of this cluster.

People who trust television and Facebook to provide them with accurate news about the coronavirus pandemic are less knowledgeable about COVID-19, according to a new study, which assessed people's knowledge of the virus in the earliest stages of the pandemic.