单词:prionocrangon paucispina
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[00:01.94]Randy Pausch Inspires Graduates [00:06.37]I am glad to be here today, Hell, [00:10.80]I am glad to be anywhere today. [00:12.62]President Cohon asked me to come [00:15.25]and give the charge to the graduates. I assure you, [00:18.32]it's no
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
HOST: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Doug Johnson. Today, we play music by three rock groups Answer a question about a beloved university professor who died last month And report on a Hall of Fame for Americans from N
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,
By Deborah Block Washington, DC 11 January 2006 watch Baby Noor report Doctors in the southern U.S. city of Atlanta, Georgia say an Iraqi infant known as Baby Noor is doing well after surgery Monday t