sciencenews.org -- High up in the steppes of Kazakhstan is where it may have first happened: a human decided to climb atop a horse instead of killing it for meat. The act seems trivial today, but nearly 5500 years ago it would have been revolutionary."Horse domestication was a landmark moment, a bit like the invention of the wheel," says Alan Outram of the University of Exeter, UK.By domesticating horses, humans cre...     03-06     采编 kaylazhou
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sciencenews.org -- An experimental drug called mepolizumab can prevent severe asthma attacks in people with an uncommon form of the disease that responds poorly to standard steroid medications, researchers report in two studies in the March 5 New England Journal of Medicine.Scientists from Britain and Canada also find that a simple test of sputum (coughed up matter) can reveal which patients would most likely benefi...     03-06     采编 kaylazhou
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sciencenews.org -- Central Asia’s vast grasslands hosted a prehistoric revolution in transportation, communication and warfare, thanks to the humble horse. Remains from Kazakhstan’s more than 5,000-year-old Botai culture have yielded the earliest direct evidence for domestication of these versatile beasts, scientists report.The Botai people were hunter-gatherers who lived in large settlements for months or years. Th...     03-06     采编 kaylazhou
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sciencenews.org -- This is the VOA Special English Health Report. Schistosoma mansoni, one of three major kinds of worms that cause schistosomiasis Scientists think they are a step closer to a new drug to treat schistosomiasis. More than two hundred million people suffer from this parasitic worm disease. Most live in developing nations in tropical climates. About ten percent of victims become seriously disabled from...     2008     采编 calvin602
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