6,170 articles mezi dny 1.8.2020 a 31.8.2020

Q&A: A scientist explains the 'why' of California's wildfire crisis

Unexpected bad news hit California more than 11,000 times last week. That's the estimated number of lightning strikes that unleashed two of the biggest fires in state history. The fires are burning at the same time across more than 1.4 million acres, sending a cloud of smoke stretching across the Western U.S.

A ribosome odyssey in mitochondria

Proteins make life and are made by ribosomes. In mitochondria, the repertoire of the mitoribosomal architectures turns out to be much more diverse than previously thought.

Giant Antarctic ice shelves facing fracture risk: study

A platform of ice surrounding Antarctica measuring more than 350,000 square miles (900,000 sq km) is at risk of collapse as the effects of climate change threaten to destabilise it, a new study has shown. The floating ice shelves that extend from the world’s largest ice sheet into the sea could split if fractures on their surface are flooded by meltwater as the climate warms. Sudden loss of...

Citriodiol-based spray can help protect against Covid-19, says MoD lab

DSTL reports ‘some loss of virus’ using bug repellent, but unclear how much difference it makesCoronavirus – latest updatesSee all our coronavirus coverageA naturally derived mosquito repellent that was given to British soldiers in April is effective at providing protection against Covid-19, defence scientists have said.But it is unclear whether the spray would make any practical difference...

Antarctica ice shelves vulnerable to meltwater that could cut ice 'like a knife,' study finds

Meltwater could undermine the walls of ice holding back Antarctica's glaciers, scientists reported on Wednesday, a finding that underscores concern about the potential for a significant sea level rise. The ice shelves, formed over thousands of years, serve as dams to prevent much of the continent's snow and ice from flowing toward the ocean. Scientists found that about 60% of the ice shelf area...

Study evaluates immersive virtual reality as a sleep aid for teens

While teens are encouraged to turn off electronics before bedtime, a new study suggests that visiting a virtual environment may benefit their sleep health. Researchers evaluated the efficacy of a novel intervention based on virtual reality and slow breathing to promote bedtime relaxation and sleep in high school students.