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Новости за 06.01.2025

Floods linked to rise in US deaths from several major causes

Sciencedaily.com 

Over the last 20 years, large floods were associated with up to 24.9 percent higher death rates from major mortality causes in the U.S. compared to normal conditions. A new study demonstrates the sweeping and hidden effects of floods --including floods unrelated to hurricanes, such as those due to heavy rain, snowmelt, or ice jams.

Virtual chemistry speeds up drug discovery

Sciencedaily.com 

Among the hundreds of thousands of chemical compounds produced by plants, some may hold the key to treating human ailments and diseases. But recreating these complex, naturally occurring molecules in the lab often requires a time-consuming and tedious trial-and-error process. Now, chemists have shown how new computational tools can help them create complex natural compounds in a faster and more streamlined way.

Researchers boost chemotherapy uptake in breast cancer treatment with localized magnetic fields

Sciencedaily.com 

Researchers have developed a non-invasive method to improve the effectiveness of chemotherapy while reducing its harmful side effects. By applying brief, localized pulses of magnetic fields, the team demonstrated a significant increase in the uptake of doxorubicin (DOX), a widely used chemotherapy drug, into breast cancer cells, with minimal impact on healthy tissues.



Neurodegenerative diseases: Membrane anchor suppresses protein aggregation

Sciencedaily.com 

Protein aggregation is typical of various neurodegenerative diseases such as Alzheimer's, Parkinson's and prion diseases such as Creutzfeld-Jakob disease. A research team has now used new in vitro and cell culture models to show that a lipid anchor on the outer membrane of nerve cells inhibits the aggregation of the prion protein.

Citizen science reveals that Jupiter's colorful clouds are not made of ammonia ice

Sciencedaily.com 

Collaborative work by amateur and professional astronomers has helped to resolve a long-standing misunderstanding about the composition of Jupiter's clouds. Instead of being formed of ammonia ice -- the conventional view -- it now appears they are likely to be composed of ammonium hydrosulphide mixed with smog.

Tuberculosis strains resistant to new drugs are transmitted between patients

Sciencedaily.com 

Tuberculosis (TB) is the world's biggest infectious disease killer with multidrug-resistant TB (MDR-TB) posing a particular threat to global health. A study shows that resistance to the new MDR-TB treatment regimen recently recommended by the World Health Organization is already spreading between patients.

Dangerous weather conditions in U.S. as snow blankets several states

CBSNews.com 

Snow is blanketing several states in the Midwest and the East as frigid temperatures contribute to dangerous driving conditions across the U.S. CBS News' Ian Lee reports from Clayton, Missouri, and CBS News Bay Area meteorologist Jessica Burch has the latest weather forecast.

Marked decrease in Arctic pressure ridges

Sciencedaily.com 

In the Arctic, the old, multiyear ice is increasingly melting, dramatically reducing the frequency and size of pressure ridges. These ridges are created when ice floes press against each other and become stacked, and are a characteristic feature of Arctic sea ice, an obstacle for shipping, but also an essential component of the ecosystem. In a recently released study scientists report on this trend and analyze observational data from three decades of aerial surveys.

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