单词:prionocerus bicolor
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Conditions such as mad cow disease are caused by abnormally shaped proteins, called prions. Prions spread by causing other, normal proteins to misfold
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
President Barack Obama's choice to lead the Commerce Department, Senator Judd Gregg of New Hampshire, has withdrawn his nomination. The Republican lawmaker cites differences with the Democratic president over policy issues, including an economic rec
RACHEL MARTIN, HOST: Scientists have developed a better test for a very rare brain disease. And as NPR's Rae Ellen Bichell reports, this test could lead to new ways to diagnose more common diseases like Parkinson's and Alzheimer's. RAE ELLEN BICHELL,
ROME, Oct. 26 (Xinhua) -- Antonio Nocerino turned out to be the unexpected hat-trick hero as AC Milan beat Parma at home on Wednesday to notch up their third consecutive Serie A victory. Nocerino broke the deadlock at San Siro in the 30th minute. Zlt
Belarus has executed two men convicted for a fatal 2011 metro bomb attack, despite protests from European human rights groups and calls for a re-trial. Belarussian news media reported Saturday that Vladislav Kovalyov and Dmitry Konovalov, both 25, ha