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2024

Новости за 11.04.2024

Verifying the mathematics behind ocean modeling

Phys.org 

Global climate models, such as the Energy Exascale Earth System Model developed by the U.S. Department of Energy, rely on many underlying equations that simulate Earth's natural processes. These include the water cycle, carbon dioxide uptake by land and water, and rates of ice melt.

A new spin on organic shampoo makes it sudsier, longer lasting

Phys.org 

While there's no regulation in the U.S. for what's in organic shampoos, they tend to contain ingredients perceived as safe or environmentally friendly. However, these "clean" shampoos separate and spoil faster than those made with synthetic stabilizers and preservatives. Now, researchers in ACS Sustainable Chemistry & Engineering demonstrate that a simple process—spinning organic shampoo at high speeds—improved the final products' shelf lives and ability to clean hair.

Efficiency boost: Dual light pulses minimize energy for phase transitions

Phys.org 

Researchers have explained the mechanisms behind a counterintuitive phenomenon: Making a phase transition effective requires less energy if it is initiated by two pulses of light instead of just one. The energy needed to complete the phase transition has been reduced by 6% and could be further optimized. These results have the potential to be transferred to other materials, offering new avenues for precise material control and technological innovation.

Scientists find new paths to steer and optimize electrochemical processes

Phys.org 

Optimizing electrochemical reactions is essential for the transition to renewable energies. In electrochemical reactions, electric currents and potential differences are used to binding and induce reactions. Electrochemistry is a pre-requisite for hydrogen production, and for battery technology, and thus for sustainable chemistry.



Cannibalism and genome duplication in nematodes

Phys.org 

Researchers at the Max Planck Institute for Biology have produced intriguing evidence of how environmental factors and genetic adaptation can lead to the evolution of novel and aggressive traits and behaviors in nematodes.

Discovery of the first fractal molecule in nature

Phys.org 

An international team of researchers led by groups from the Max Planck Institute in Marburg and the Philipps University in Marburg has stumbled upon the first regular molecular fractal in nature. They discovered a microbial enzyme—citrate synthase from a cyanobacterium—that spontaneously assembles into a pattern known as the Sierpinski triangle. Electron microscopy and evolutionary biochemistry studies indicate that this fractal may represent an evolutionary accident.

A new tool for tracing the family trees of cells

Phys.org 

EPFL researchers have developed GEMLI, a pioneering tool that could democratize and vastly improve how we study the journey of cells from their embryonic state through to specialized roles in the body, as well as their changes in cancer and other diseases. The advance is reported in Nature Communications.

Machine learning model sheds new light on muscle development

Phys.org 

Life sciences have never been more digital. To learn more about life processes, biologists are collecting massive quantities of data that computer scientists analyze by means of sophisticated computational models that they develop.

New technological advance for fast and efficient 3D imaging of objects

Phys.org 

A team of experts from the University of Barcelona and the company Sensofar Tech have designed an innovative technology to obtain three-dimensional images of a study sample quickly, accurately and non-invasively. The work has been published in Nature Communications.

Altered oceanic crust may contribute to arc magmas

Phys.org 

As an important subduction component, altered oceanic crust (AOC) is widely distributed on the oceanic subducting slab and may contribute significantly to the chemistry of arc magmas. However, identifying this contribution in arc magmas is challenging because AOC is not as enriched in incompatible elements as sediments, nor does it have as high H2O concentrations as do serpentinites. Therefore, it is necessary to find a sensitive tracer for subducted AOC.

Researchers discover the secret of how termites build their giant nests

Phys.org 

Termites are the architects of the natural world. The nests that they build can reach meters of height, with complex and elaborate structures, galleries that ensure efficient communication and that automatically ventilate the nest interior in a way that would make the envy of human engineers. How can thousands or millions of insects coordinate their work to build solid and functional nests for the colony?

Researchers resolve old mystery of how phages disarm pathogenic bacteria

Phys.org 

Bacterial infections pose significant challenges to agriculture and medicine, especially as cases of antibiotic-resistant bacteria continue to rise. In response, scientists at Texas A&M AgriLife Research are elucidating the ways that bacteria-infecting viruses disarm these pathogens and ushering in the possibility of novel treatment methods.





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