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Новости за 28.06.2024

Sciencedaily.com 

New deep-learning model outperforms Google AI system in predicting peptide structures

Researchers have developed a deep-learning model, called PepFlow, that can predict all possible shapes of peptides -- chains of amino acids that are shorter than proteins, but perform similar biological functions. Peptides are known to be highly flexible, taking on a wide range of folding patterns, and are thus involved in many biological processes of interest to researchers in the development of therapeutics.

Sciencedaily.com 

Emotional overeating fed by temperament, caregivers' reactions to children's emotions

A research team tracked children from infancy through age 3 to explore the roots of emotional overeating. Parents/caregivers were surveyed about the children's temperaments and whether they consumed food to manage their emotions. The team found that while emotional overeating was associated with temperament and individuals' capacity to manage their emotions, parents' and caregivers' reactions to the children's negative emotions had a significant impact on whether they developed emotional overeating.

Sciencedaily.com 

Last surviving woolly mammoths were inbred but not doomed to extinction

The last population of woolly mammoths was isolated on Wrangel Island off the coast of Siberia 10,000 years ago, when sea levels rose and cut the mountainous island off from the mainland. A new genomic analysis reveals that the isolated mammoths, who lived on the island for the subsequent 6,000 years, originated from at most 8 individuals but grew to 200--300 individuals within 20 generations. The researchers report that the Wrangel Island mammoths' genomes showed signs of inbreeding and low genetic... Читать дальше...

Miningweekly.com 

Claimants for deadly Mariana dam collapse file injunction against BHP, Vale

Lawyers representing claimants taking legal action over Brazil's worst environmental disaster filed an injunction this week against miners BHP and Vale for "trying to derail" a potential £36-billion ($46-billion) London lawsuit. More than 720 000 Brazilians, including 46 local governments, are suing BHP and Vale over the 2015 collapse of the Mariana dam, which was owned and operated by their Samarco joint venture.

Sciencedaily.com 

To protect corals from summer heatwaves, we should help their microbial symbionts evolve heat tolerance in the lab

Most coral reef restoration efforts involve restocking reefs with nursery-grown corals. However, if these corals are of the same stock as their wild counterparts, they will be equally vulnerable to the heat stress that caused the bleaching event in the first place. Researchers discuss the potential of improving corals' chances by inducing the evolution of heat tolerance in their symbionts -- the mutualistic microbes that provide corals with nutrients in exchange for shelter and that are expelled during coral bleaching.

Sciencedaily.com 

The mechanism behind melanoma resistance to treatment

In many cases of malignant melanoma, the effect of targeted treatment is lost over time. A research team has now discovered that a factor secreted by tumor cells is responsible for the resistance. These findings could pave the way for more effective therapies.

Sciencedaily.com 

Vaccination may reduce memory loss from COVID-19 infections

Since the outset of the COVID-19 pandemic, 10 to 30 per cent of the general population has experienced some form of virus-induced cognitive impairment, including trouble concentrating, brain fog or memory loss. This led a team of researchers to explore the mechanism behind this phenomenon and pinpoint a specific protein that appears to be driving these cognitive changes. A new study also looked at how vaccination may help reduce the impacts of memory loss following COVID-19 infections.

The Toledo Blade 

Lucas County Children Services trustees propose amended levy

Lucas County Children Services trustees Thursday unanimously approved a resolution asking the county Citizens Levy Review Committee to consider placing a new five-year, 1.5-mill levy on the Nov. 5 ballot instead of the renewal of an expiring 1.8-mill levy, with a 1.5-mill increase.

Sciencedaily.com 

Relationship between heart disease and spontaneous loss of Y chromosome

Researchers found that men with a higher proportion of blood cells missing Y chromosomes have a higher mortality rate from a common cause of heart disease called transthyretin cardiac amyloidosis (ATTR-CA), informing future treatment for patients with ATTR-CA.

Sciencedaily.com 

New twists on tornadoes: Earth scientist studies why U.S. has so many tornadoes

Across the Midwest during the warmer months, studying the sky for signs of storms and tornadoes becomes one of the most popular pastimes. Working at the intersection of climate science and meteorology and using modeling, scientists are looking at the big picture of what causes severe storms and tornadoes -- and what dictates where they occur.