Новости за 22.04.2024

In a first demonstration of "electron videography," researchers have captured a microscopic moving picture of the delicate dance between proteins and lipids found in cell membranes. The technique can be used to study the dynamics of other biomolecules, breaking free of constraints that have limited microscopy to still images of fixed molecules, say University of Illinois Urbana-Champaign researchers and collaborators at the Georgia Institute of Technology.

Pyrrolizidine alkaloids are as bitter and toxic as they are hard to pronounce. They're produced by several different types of plants and are among the leading causes of accidental death in cattle.

Observing individual cells through microscopes can reveal a range of important cell biological phenomena that frequently play a role in human diseases, but the process of distinguishing single cells from each other and their background is extremely time-consuming—and a task that is well-suited for AI assistance.

A forgotten poem by Chronicles of Narnia author CS Lewis reveals details of friendships between fantasy writers and medievalists at the University of Leeds.

Gas sensors have been widely applied in areas such as medical health, environmental monitoring, and food safety. However, current gas sensors still face several challenges, including low sensitivity, long response and recovery times, and baseline drift.

For decades, curbside recycling has been a fixture in U.S. neighborhoods as a way to empower ordinary citizens to protect their environment and reduce waste. It's a system, though, that relies on consumers to know what items are recyclable—and which ones can contaminate a delicate ecosystem.

With the naked eye, you can't see the weather in space, or feel the cosmic rays beaming down to Earth—but they can impact critical systems like our climate, computer connectivity, communications and even our health.

Quantum physics requires high-precision sensing techniques to delve deeper into the microscopic properties of materials. From the analog quantum processors that have emerged recently, quantum-gas microscopes have proven to be powerful tools for understanding quantum systems at the atomic level. These devices produce images of quantum gases with very high resolution: They allow individual atoms to be detected.

"Where is my life going?" "Who do I want to be?" As future-thinkers, adolescents spend significant time contemplating these types of questions about their life goals. A new study from the University of Houston shows that as people grow from teenagers to young adults, they tend to change the importance they place on certain life goals, but one thing is certain: The existence of high-prestige and education goals, as well as their positive development, can drive success.

Escalating industrialization, urbanization and climate change in Asia present a significant challenge to maintaining water quality.

Oases are important habitats and water sources for dryland regions, sustaining 10% of the world's population despite taking up about 1.5% of land area. But in many places, climate change and anthropogenic activities threaten oases' fragile existence. New research shows how the world's oases have grown and shrunk over the past 25 years as water availability patterns have changed and desertification encroaches on these wet refuges.

Taiwan's capital was hit by a series of earthquakes overnight into the early hours of Tuesday, with the Central Weather Administration saying the strongest was a magnitude-6.3 tremor originating in eastern Hualien.

For the first time since November, NASA's Voyager 1 spacecraft is returning usable data about the health and status of its onboard engineering systems. The next step is to enable the spacecraft to begin returning science data again. The probe and its twin, Voyager 2, are the only spacecraft to ever fly in interstellar space (the space between stars).

There is a high level of interest, even excitement, among chemists and materials scientists about the potential of single-atom catalysts (SACs), but their development relies on very specialized tools available only at synchrotrons like the Canadian Light Source (CLS) at the University of Saskatchewan (USask).

Montesinho Natural Park (MNP) is celebrated for its diverse flora and unique climate, creating an ideal environment for producing honey with distinctive attributes. With the demand for natural products and Protected Designation of Origin (PDO) honey on the rise, understanding the nuances that contribute to honey quality becomes paramount.

Long-term, low-dose exposure to per- and polyfluoroalkyl substances, also known as PFAS or forever chemicals, can hinder the immune system, interfere with hormones, and reduce the effectiveness of vaccines. It can also cause low birth weight and high cholesterol. High doses of PFAS increase the risk of kidney cancer, liver damage, testicular cancer, and thyroid disease.

Each day, roughly 43 million Americans eat at least one slice of pizza, according to experts. The hot, cheesy, Italian-inspired dish contributes a whopping $47 billion to the U.S. economy each year, and about a third of those pies come delivered to their destinations in corrugated cardboard boxes.

Teams led by Southwest Research Institute successfully executed two experiments—by land and air—collecting unique solar data from the total eclipse that cast a shadow from Texas to Maine on April 8, 2024. The Citizen Continental-America Telescopic Eclipse (CATE) 2024 experiment engaged more than 200 community participants in a broad, approachable, and inclusive attempt to make a continuous 60-minute high-resolution movie of this exciting event.

Professional asset managers are assessed based on their ability to outperform the market. In practice, outperformance is most often measured relative to industry benchmarks such as the S&P 500 (for large-cap U.S. equities), or the Bloomberg Barclays U.S. Aggregate Bond Index.

A new statistical analysis of the interaction between El Niño and rising global temperatures due to climate change concludes that the approaching summer in the tropics has nearly a 7 in 10 chance of breaking records for temperature and humidity.

Oregon State University researchers have teamed with the Karuk Tribe to create a novel computer simulation model that showcases Indigenous fire stewardship's role in forest ecosystem health.

One of the politically destructive strands of environmental advocacy criticizes material consumption and attempts to make people feel guilty for air travel and other forms of behavior that pollutes the environment.

Firms that receive research and development (R&D) credits are much more likely to acquire venture capital (VC) backed startups, alongside investing in their own R&D efforts, according to new research by ESMT Berlin.

Gamma-ray bursts (GRBs) are intense bursts of gamma radiation, typically generating more energy in a few seconds than the sun will produce over its ten-billion-year lifetime. These transient phenomena present one of the most challenging puzzles in astrophysics, dating back to their accidental discovery in 1967 by a nuclear surveillance satellite.

Excessive nitrogen input into agriculture systems has caused environmental problems such as atmospheric pollution, loss of biodiversity and degradation of water. Meanwhile, the development of intensive animal farming has further caused the separation between crop and livestock sectors, leading to additional hotspot areas prone to pollutant discharge.