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Karina

Karina
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Ultrasound has potential to damage coronaviruses, study finds

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The coronavirus' structure is an all-too-familiar image, with its densely packed surface receptors resembling a thorny crown. These spike-like proteins latch onto healthy cells...

New measurement technique unravels what gives hummingbird wings their characteristic sound

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The hummingbird is named after its pleasant humming sound when it hovers in front of flowers to feed. But only now has it become...

Males give up on trying to attract females when they are...

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Male animals are less likely to try to attract a mate when they are in poor condition, a paper published in Nature Ecology and Evolution has...

An ancient Maya ambassador’s bones show a life of privilege and...

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An important Maya man buried nearly 1,300 years ago led a privileged yet difficult life. The man, a diplomat named Ajpach' Waal, suffered malnutrition...

Study predicts the oceans will start emitting ozone-depleting CFCs

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The world's oceans are a vast repository for gases including ozone-depleting chlorofluorocarbons, or CFCs. They absorb these gases from the atmosphere and draw them...

Scientists stunned to discover plants beneath mile-deep Greenland ice

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In 1966, US Army scientists drilled down through nearly a mile of ice in northwestern Greenland -- and pulled up a fifteen-foot-long tube of...

Discovery of ‘knock-on chemistry’ opens new frontier in reaction dynamics

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Research by a team of chemists at the University of Toronto, led by Nobel Prize-winning researcher John Polanyi, is shedding new light on the...

Scientists plumb the depths of the world’s tallest geyser

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When Steamboat Geyser, the world's tallest, started erupting again in 2018 in Yellowstone National Park after decades of relative silence, it raised a few...

Three bacterial strains discovered on space station may help grow plants...

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In order to withstand the rigors of space on deep-space missions, food grown outside of Earth needs a little extra help from bacteria. Now,...

European summer droughts since 2015 unprecedented in past two millennia

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Recent summer droughts in Europe are far more severe than anything in the past 2,100 years, according to a new study. An international team, led...

Use of perovskite will be a key feature of the next...

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Quantum dots are manmade nanoparticles of semiconducting material comprising only a few thousand atoms. Because of the small number of atoms, a quantum dot's...