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2023

Новости за 23.08.2023

Scientists demonstrate intense ultraviolet-visible-infrared full-spectrum laser

Phys.org 

A high-brightness ultrabroadband supercontinuum white laser has attracted more and more attention in physics, chemistry, biology, materials science, and other disciplines of science and technology. Over the past decades, many different approaches have been developed for supercontinuum white laser generation.

Sci­en­tists develop fermionic quan­tum pro­ces­sor

Sciencedaily.com 

Researchers have designed a new type of quantum computer that uses fermionic atoms to simulate complex physical systems. The processor uses programmable neutral atom arrays and is capable of simulating fermionic models in a hardware-efficient manner using fermionic gates. The team demonstrated how the new quantum processor can efficiently simulate fermionic models from quantum chemistry and particle physics.

Dear Dad, Send Money – Letters from Students in Medieval Times

Medievalists.net 

If you have a son or daughter attending university, most likely you will be getting a message from them asking for money. Apparently, this is part of a long tradition that goes back to the beginning of universities in the Middle Ages.



Noncoding DNA explains a majority of the heritability of dairy cattle traits, like milk production and fertility

Sciencedaily.com 

Regulatory genes -- genes that control how other genes are used -- are responsible for 69% of the heritability of dairy cattle traits such as milk production and fertility, according to a new study. This contribution is 44% more than expected and much higher than previous studies of regulatory genes in humans. The findings, reported by a team of animal and human geneticists, could improve the efficiency of agricultural breeding programs. The study also helps solve the longstanding mystery of why mammalian genomes contain so much noncoding DNA.

Biodiversity protects against invasions of non-native tree species

Sciencedaily.com 

Researchers combined human and ecological factors to analyze the global scale of non-native tree species invasions. Human activity in hotspots of global trade, such as maritime ports, is linked to an increased likelihood of non-native tree species invasions. However, a high diversity of native tree species can help to curb the intensity of such invasions.

A 21st century mining boom across the tropics is degrading rivers

Sciencedaily.com 

Gold and mineral mining in and near rivers across the tropics is degrading waterways in 49 countries, according to a new study. Published in Nature, the findings represent the first physical footprint of river mining and its hydrological impacts on a global scale.

Atmospheric circulation weakens following volcanic eruptions

Sciencedaily.com 

An international team of scientists -- led by two who worked together at Washington University in St. Louis -- found that volcanic eruptions can cause the Pacific Walker Circulation to temporarily weaken, inducing El Niño-like conditions. The results provide important insights into how El Niño and La Niña events may change in the future.

Adding immunity to human kidney-on-a-chip advances cancer drug testing

Sciencedaily.com 

T cell bispecific antibodies (TCBs) are an emerging class of immunotherapeutics with several TCBs approved by the FDA for the treatment of leukemias, lymphomas, and myelomas. TCBs label tumor cells with one of their ends, and attract immune cells with another end to coerce them into tumor cell killing. However, one major challenge in the development of TCBs are 'on-target, off-tumor' toxicities at sites in the body that also express TCB-targeted antigens. Scientists have now created an immune-infiltrated... Читать дальше...

Planning algorithm enables high-performance flight

Sciencedaily.com 

New algorithms for trajectory planning and control of fixed-wing 'tailsitter' aircraft are faster and more efficient than traditional quadcopter drones. The algorithms can execute challenging maneuvers and are so efficient they can plan complex trajectories in real-time.


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