Новости за 19.04.2024

An international team at the world's largest X-ray laser European XFEL at Schenefeld near Hamburg has scrutinized the properties of an important nanogel that is often used in medicine to release drugs in a targeted and controlled manner at the desired location in a patient's body. The team has now published the results in the journal Science Advances.

Inspired by what human liver enzymes can do, Scripps Research chemists have developed a new set of copper-catalyzed organic synthesis reactions for building and modifying pharmaceuticals and other molecules. The new reactions are expected to be widely used in drug discovery and optimization, as well as in other chemistry-based industries.

Scientists at the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and their international collaborators have recently developed a new method for efficiently extracting information from galaxy surveys. Their research results are published in the journal Communications Physics.

The inauguration of the world's most powerful fusion machine brings the dream of clean, safe and abundant power closer.

Pomegranates, known for their rich phenolic content, have been explored for their potential as natural antimicrobials. The research focuses on the peel, which contains a high concentration of these beneficial compounds and represents a significant portion of the fruit's biomass. The study presents a multivariate approach to screen different pomegranate varieties for their antimicrobial and antibiofilm activities.

An international collaboration of researchers, led by Philip Walther at University of Vienna, have achieved a significant breakthrough in quantum technology, with the successful demonstration of quantum interference among several single photons using a novel resource-efficient platform. The work published in Science Advances represents a notable advancement in optical quantum computing that paves the way for more scalable quantum technologies.

A study published in the journal Potato Research presents results on the response of spring and summer potatoes to climate change in South Korea. The study, conducted by scientists from the Leibniz Center for Agricultural Landscape Research (ZALF) and the Brandenburg University of Technology Cottbus, investigates the effects of global warming on the potato crop and presents adaptation strategies.

Curiosity continues to make progress along the margin of upper Gediz Vallis ridge, investigating the broken bedrock in our workspace and acquiring images of the ridge deposit as the rover drives south.

The selective oxidation of aromatic C-H bonds has drawn significant attention in both industrial and fine chemistry due to its crucial role in converting readily- and cheaply-available aromatic hydrocarbons into high-value-added oxygenated products for diverse fields such as biology, medicine, fragrance, and agriculture.

The US Environmental Protection Agency on Friday classified two so-called "forever chemicals" as hazardous substances, meaning those responsible for releasing them will have to pay to clean up contamination.

Many plant-based meats have seemingly done the impossible by recreating animal products ranging from beef to seafood. But beyond just the taste and texture, how do these products compare to the real thing in nutritional value? A small-scale study published in Journal of Agricultural and Food Chemistry shows that while some "plant steaks" and "plant cold cuts" might be comparable to meats on some fronts, their amino acid content and protein digestibility fall short.

For most stars, neutron stars and black holes are their final resting places. When a supergiant star runs out of fuel, it expands and then rapidly collapses on itself. This act creates a neutron star—an object denser than our sun crammed into a space 13 to 18 miles wide. In such a heavily condensed stellar environment, most electrons combine with protons to make neutrons, resulting in a dense ball of matter consisting mainly of neutrons. Researchers try to understand the forces that control this... Читать дальше...

While four Ontario school boards recently announced a $4.5-billion lawsuit against the social media giants behind Facebook, Instagram, Snapchat and TikTok, Brock University experts are calling for additional actions to address the influence popular online platforms have on teens.

A group-based curriculum called Journey of Life (JoL)—delivered over 12 sessions in the Kiryandongo refugee settlement in Uganda—led to improvements in mental health, social support, parental warmth and attitudes around violence against children, finds a new study from the Brown School.

As extreme weather events increase around the world due to climate change, the need for further research into our warming planet has increased as well. For NASA, climate research involves not only conducting studies of these events, but also empowering outside researchers to do the same. The artificial intelligence (AI) efforts spearheaded by the agency offer a powerful tool to accomplish these goals.

Two Black Brant IX sounding rockets launched from Poker Flat Research Range in Fairbanks, Alaska, April 17, 2024, during an M-class solar flare for NASA's sounding rocket solar flare campaign.

A new report from Portland State University's Homelessness Research & Action Collaborative (HRAC) indicates that alternative shelters provide better outcomes for people experiencing homelessness than traditional shelters.

People are using "they/them" pronouns more often according to a new study by the University of North Carolina at Chapel Hill.

Researchers at Aston University have found differences between experienced Ordnance Survey (OS) mapmakers and novices in the way that they interpret aerial images for mapmaking, which could lead to improved training processes for new recruits. The findings are published in the Journal of Vision.

Using firm-level data from the global supply network, researchers from the Complexity Science Hub (CSH) quantified countries' exposure to production losses caused by firm defaults in other countries. According to their findings, wealthy nations are only exposed to supply chain disruptions from other high-income countries, while poor and developing nations are exposed to shocks from all countries.

Tears, shouts and interruptions marked residents' comments Wednesday night over a proposal to exterminate geese in Bristol, Conn., parks.

Tectonically active mountains play an important role in the natural CO2 regulation of the atmosphere. Competing processes take place here: At Earth's surface, erosion drives weathering processes that absorb or release CO2, depending on the type of rock. At depth, the heating and melting of carbonate rock leads to the outgassing of CO2 at the surface.

Wolves killed several yearling cattle in north-central Colorado this week, bringing the total number of wolf kills of livestock this month to six.

New archaeological investigations in Guatemala reveal that ancient Maya peoples did not just passively watch their dynastic systems collapse at the end of the Classic period. They actively reworked their political systems to create new governments.

Black carbon (BC) is the result of incomplete combustion of fossil fuels and biomass, with strong light absorption. It is second only to carbon dioxide as a climate-forcing factor for atmospheric warming. Deposition of BC on snow and ice surfaces reduces albedo, accelerates glacier and snow cover melting, and alters hydrological processes and water resources in the region.