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Новости за 28.06.2024

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

Miningweekly.com 

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.

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

Sciencedaily.com 

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.

The mechanism behind melanoma resistance to treatment

Sciencedaily.com 

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.

Vaccination may reduce memory loss from COVID-19 infections

Sciencedaily.com 

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.

Lucas County Children Services trustees propose amended levy

The Toledo Blade 

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.

Relationship between heart disease and spontaneous loss of Y chromosome

Sciencedaily.com 

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.

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

Sciencedaily.com 

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.

How does the human brain switch between survival tasks?

Sciencedaily.com 

The hypothalamus is a small region of the human brain typically associated with regulating body temperature, hunger, thirst, fatigue, and sleep. But it also has another important role: helping the brain and body switch between different and opposing survival behaviors such as hunting prey and escaping predators, according to a new study.