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Science and technology 科技 Molecular Biology: Folding Stuff 分子生物学：折叠 Shape determines a protein's function. Determining that shape, though, is tricky. 蛋白质的结构决定功能，而结构的形成却很难。 ABOUT 120,000 ty
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a
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A consortium of more than 60 international non-governmental organizations says it will launch a global campaign on the Right to Water on March 22, which is World Water Day. The activists say they want the United Nations to begin negotiations for a le
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SCIENCE REPORT – January 23, 2002: Aging Protein By Jerilyn Watson This is the VOA Special English Science Report. A new study suggests that a protein that protects animals from cancer early in life
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Low－salt，low－protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones，according to an Italian study that could spell the end for the low－calcium diet that doctors have been recommen
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Leaders from the world's biggest industrial nations meet in Japan on Monday for the annual Group of Eight summit. VOA White House Correspondent Scott Stearns has this report on the summit agenda. President Bush gestures during remarks on upcoming G8
VOA标准英语2008年（七月）