Новости за 24.04.2024

A new computer process developed by chemists at ETH Zurich makes it possible to generate active pharmaceutical ingredients quickly and easily based on a protein's three-dimensional surface. The new process, detailed in Nature Communications, could revolutionize drug research.

Medical implants could fail less often when coated with a microscopically crinkled, ceramic material designed by researchers at the University of Michigan. The coating is described in a paper published in ACS Applied Materials and Interfaces.

Powerful monsoon winds, strengthened by a warming climate, are lofting unexpectedly large quantities of ozone-depleting substances high into the atmosphere over East Asia, new research shows.

Cells buzz with millions of different biomolecules that diffuse chaotically through their substructures, yet they manage to ensure exquisite functional and spatial specificity.

While ESA's satellite INTEGRAL was observing the sky, it spotted a burst of gamma-rays—high-energy photons—coming from the nearby galaxy M82. Only a few hours later, ESA's XMM-Newton X-ray space telescope searched for an afterglow from the explosion but found none.

Did you know that 99% of synthetic diamonds are currently produced using high-pressure and high-temperature (HPHT) methods? A prevailing paradigm is that diamonds can only be grown using liquid metal catalysts in the "gigapascal pressure range" (typically 5-6 GPa, where 1 GPa is about 10,000 atm), and typically within the temperature range of 1,300–1,600°C.

A mystery that has puzzled the scientific community for more than 50 years has finally been solved. A team from Linköping University, Sweden, and Helmholtz Munich have discovered that a certain type of chemical reaction can explain why organic matter found in rivers and lakes is so resistant to degradation. Their study has been published in the journal Nature.

A new paper published today (April 24) in the journal Nature by an international team of 279 scientists led by the Royal Botanic Gardens, Kew presents the most up-to-date understanding of the flowering plant tree of life.

A team of chemists at Lake Superior State University, working with colleagues from Wayne State University, both in Michigan, and two representatives from JEOL U.S., a lab equipment maker, has found that some cannabis rolling papers contain high levels of heavy metals, which could be hazardous to smokers.

In a finding with implications for the search for extraterrestrial life, researchers have discovered microbial life 13 feet below Earth's most inhospitable desert. The research is published in the journal PNAS Nexus.

The beginning of life is shrouded in mystery. While the intricate dynamics of mitosis are well-studied in the so-called somatic cells—the cells that have a specialized function, like skin and muscle cells—they remain elusive in the first cells of our bodies, the embryonic cells. Embryonic mitosis is notoriously difficult to study in vertebrates, as live functional analyses and imaging of experimental embryos are technically limited, which makes it hard to track cells during embryogenesis.

A group of researchers have expanded conventional knowledge on a critical enzyme that controls cell migration. In a publication in the journal Nature Communications, they reported that phosphoinositide 3-kinase (PI3K) not only acts as an accelerator to prompt cell motility, but it also has a built-in brake mechanism that impedes migration.

An international study, led by researchers from Monash University, has revealed crucial insights into black hole dynamics within massive disks at the centers of galaxies.

An international team of archaeologists, paleontologists, evolutionists and geoscientists has analyzed ancient shark fossils from the time of the dinosaurs that were recently unearthed in Mexico. In their paper published in the journal Proceedings of the Royal Society B: Biological Sciences, the group describes the condition of the fossils and where they fit in the shark family.

Despite huge advances in our understanding of COVID-19 over the past four years, the disease is still very much among us—and there remains a lot to learn.

Unlike electrons, particles of light are uncharged, so they do not respond to magnetic fields. Despite this, researchers have now experimentally made light effectively "feel" a magnetic field within a complicated structure called a photonic crystal, which is made of silicon and glass.

AMOLF researchers, in collaboration with Delft University of Technology, have succeeded in bringing light waves to a halt by deforming the two-dimensional photonic crystal that contains them. The researchers show that even a subtle deformation can have a substantial effect on photons in the crystal. This resembles the effect that a magnetic field has on electrons.

As wildfires in Siberia become more common, global climate modeling estimates significant impacts on climate, air quality, health, and economies in East Asia and across the northern hemisphere.

A new study, led by the University of Oxford and MIT, has recovered a 3.7-billion-year-old record of Earth's magnetic field, and found that it appears remarkably similar to the field surrounding Earth today. The findings have been published in the Journal of Geophysical Research.

Extreme heat scorched parts of South and Southeast Asia Wednesday, prompting schools across the Philippines to suspend classes, heat warnings in the Thai capital and worshippers in Bangladesh to pray for rain.

In a new study published inNature Physics, scientists at the MAJORANA Collaboration have tested the stringency of charge conservation and Pauli's exclusion principles using underground detectors. Alessio Porcelli has published a News & Views piece on the research in the same journal.

The moon's steadfast illumination of our night sky has been a source of wonder and inspiration for millennia. Since the first satellite images of its surface were taken in the 1960s, our understanding of Earth's companion through time has developed immeasurably. A complex interplay of cosmic interactions and planetary systems, the moon's surface displays a plethora of landforms evidencing its history.

Tens of thousands of Argentine university students took to the streets Tuesday to protest cuts to higher public education, research and science under budget-slashing new President Javier Milei.

Married women in patriarchal societies become more socially and financially independent when they participate in counseling with their spouses aimed at breaking gender norms, according to new research from a University of Texas at Arlington economist.

Nature-based climate solutions can help mitigate climate change, especially in forested regions capable of storing and sequestering vast amounts of carbon. New research published in Global Change Biology indicates that a single hurricane in New England, one of the most heavily forested regions in the United States, can down 4.6–9.4% of the total above-ground forest carbon, an amount much greater than the carbon sequestered annually by New England's forests.