Knowridge Science Report

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World’s lakes are losing oxygen rapidly as planet warms

Oxygen levels in the world’s temperate freshwater lakes are declining rapidly — faster than in the oceans — a trend driven largely by climate change that threatens freshwater biodiversity and drinking water quality. U.S. National Science Foundation-funded research published in Nature found that oxygen levels in surveyed lakes across the...
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AstronomyPosted by
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How could a galaxy exist with almost no dark matter?

Three years ago, a team of astronomers led by Yale’s Pieter van Dokkum surprised the scientific community with the discovery of a far-off galaxy that contained little or no dark matter. The discovery, made using NASA’s Hubble Space Telescope, had the potential to upend well-established theories about how galaxies form...
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Scientists discover 84 new genes linked to dementia

In a new study from the University of Exeter, researchers found how genes are regulated in dementia, and they discovered 84 new genes linked to the disease. They analyzed data from more than 1,400 people across six different studies, in a meta-analysis. These studies had used brain samples from people who had died with Alzheimer’s disease.
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Intermittent fasting may help prevent liver disease

In a new study from the University of Sydney, researchers found how intermittent fasting works on the liver to help prevent disease. The findings will help medical scientists working in cancer, heart disease and diabetes research develop new interventions to lower disease risk and discover the optimum intervals for fasting.
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Scientists detect signatures of life remotely

It could be a milestone on the path to detecting life on other planets:. Scientists under the leadership of the University of Bern and of the National Centre of Competence in Research (NCCR) PlanetS detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground.
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Scientists invent new technique to produce flexible electronics

Ultrathin, flexible computer circuits have been an engineering goal for years, but technical hurdles have prevented the degree of miniaturization necessary to achieve high performance. Now, researchers at Stanford University have invented a manufacturing technique that yields flexible, atomically thin transistors less than 100 nanometers in length—several times smaller than...
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Tai chi could reduce depression and anxiety in these people

In a new study from the University of Arizona, researchers found that tai chi may reduce depression, anxiety and stress plus improve sleep in people who have had a stroke. Depression occurs in approximately one-third of stroke survivors and is linked with greater disability and mortality rates. Individuals with post-stroke depression frequently also report anxiety, stress, and poor sleep.