Новости за 26.07.2022

The interface between gases and liquids is found throughout nature. It is also important to many industrial processes. To improve understanding of the gas-liquid interface, researchers have developed an apparatus to study reactions between gas molecules and highly volatile liquids with new levels of detail. It uses a molecular beam that is directed onto a flat liquid surface. When the beam scatters, a detector collects data on the speed, direction, and mass of molecules in the scattered beam. This... Читать дальше...

Urban gardens can be hotspots for biodiversity in cities, but little is known about what drives the biodiversity of species existing at the smallest frequencies, or rare biodiversity. Rare plant species in urban gardens attract rare bee and bird species, according to a Dartmouth-led study examining urban garden sites in northern California. The results, published in Ecological Applications, show that women, older gardeners and those who live near the gardens tend to curate more rare plants.

Neutrophils are a type of white blood cell that helps fight illness and disease by traveling to the body's infected site to seek and destroy harmful pathogens.

Energy, mass, velocity. These three variables make up Einstein's iconic equation E=MC2. But how did Einstein know about these concepts in the first place? A precursor step to understanding physics is identifying relevant variables. Without the concept of energy, mass, and velocity, not even Einstein could discover relativity. But can such variables be discovered automatically? Doing so could greatly accelerate scientific discovery.

Multichannel sensing could help in emergencies.

A new paper by PETA Science Consortium International e.V. and the Luxembourg Institute of Science and Technology shows how to improve the relevance and reproducibility of research by replacing media containing serum extracted from the blood of unborn calves with animal-free media.

Research drawing on the quantum "anti-butterfly effect" solves a longstanding experimental problem in physics and establishes a method for benchmarking the performance of quantum computers.

On July 20, 53 years after Neil Armstrong took one small step for man and one giant leap for mankind, NASA announced target launch dates for the Artemis I mission, the agency's long-awaited first step to returning astronauts to the moon and eventually Mars. Even though there won't be people onboard the Orion spacecraft when it blasts off later this summer, it will carry dozens of tiny tributes to the Artemis team that were created at the University of Houston.

New research in the INFORMS journal Management Science finds that firms that have experienced data breaches intentionally stage the timing of such announcements around other significant breaking news as a means of reducing media coverage and minimizing public attention.

Baby marmosets begin practicing the face and mouth movements necessary to call their family for help before they are born, shows a study published today in eLife.

They say that life comes without an instruction manual, but that's not entirely true. Each cell in our bodies lives according to instructions issued by its DNA in the form of RNA molecules. RNA was recently thrust into the limelight as the basis of innovative COVID-19 vaccines, but much fundamental knowledge about this vital molecule—for example, how it manages to make its way in the cell to a designated location—is still lacking. Researchers at the Weizmann Institute of Science have now discovered... Читать дальше...

Extreme cooling events during the last glacial period, known as Heinrich events in the North Atlantic, are a good example of how local processes change the global climate. While the impacts of Heinrich events on the global glacial environment are well-documented in the scientific literature, their causes are still unclear. In a new study, researchers from Bremen, Kiel, Köln and São Paulo (Brazil) have now shown that an accumulation of heat in the deeper Labrador Sea caused instabilities in the Laurentide Ice Sheet... Читать дальше...

For the first time in the history of observations, scientists from the Helsinki and Ural Federal Universities, Jarmo Moilanen and Maria Gritsevich, have systematized information about all forms of atmospheric halos recorded by mankind at the end of 2021. From numerous sources of data on observations, the history of which includes 4-5 millennia, 119 different forms of atmospheric halo are known today. There are also extra-atmospheric halos and halos that can be seen on various surfaces. An article... Читать дальше...

The U.S. Supreme Court's overturning of Roe v. Wade paved the way for limits on abortion but also created uncertainty around the future of birth control. This could have far-reaching implications for many people as a research team from Michigan State University found over one in five Michigan adults do not want children.

Scientists exploring a submerged mountain range in the mid-Atlantic stumbled onto something they can't explain: An organized series of holes punched in the floor of the Atlantic Ocean.

Black holes with varying light signatures but that were thought to be the same objects being viewed from different angles are actually in different stages of the life cycle, according to a study led by Dartmouth researchers.

Carrie Jennings flits around the South Fork Crow River like a water bug in the old one-seat canoe she bought years ago for $100, then pauses midstream to peer down at the brown water.

Researchers at the Department of Energy's Oak Ridge National Laboratory are tackling a global water challenge with a unique material designed to target not one, but two toxic, heavy metal pollutants for simultaneous removal.

For decades, a textbook process known as "Ostwald ripening," named for the Nobel Prize-winning chemist Wilhelm Ostwald, has guided the design of new materials including nanoparticles—tiny materials so small they are invisible to the naked eye.

A team of researchers from NYU Abu Dhabi's Advanced Microfluidics and Microdevices Laboratory (AMMLab) have developed new kind of Atomic Force Microscopy (AFM) probes in true three-dimensional shapes they call 3DTIPs. AFM technology allows scientists to observe, measure, and manipulate samples and micro and nanoscale entities with unprecedented precision. The new 3DTIPs, which are manufactured using a single-step 3D printing process, can be utilized for a wider variety of applications—and potential observations and discoveries—than standard... Читать дальше...

A University of Sheffield study has demonstrated once and for all that Sheffield is the home of the beautiful game—sporting the oldest clubs, grounds, trophies and even many of the rules that shaped the way football is played today.

From farmers to fishermen, boat owners to ordinary households, communities across France are struggling with a severe drought that has seen an unprecedented number of regions affected by water restrictions this summer.

Israel's Antiquities Authority said Monday it has discovered a rare 1,850-year-old bronze zodiac coin during an underwater survey off the coastal city of Haifa.

NASA-funded scientists have discovered shaded locations within pits on the Moon that always hover around a comfortable 63 F (about 17 C) using data from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft and computer modeling.

Researchers have created a new glass-ceramic that emits light in response to mechanical stress, a property known as mechanoluminescence. With further development, the new material could be used to create a light source that is switched on by mechanical stress. This could be useful for monitoring stress in artificial joints in the body or providing warnings of dangerous stress or fractures in buildings, bridges and other structures.