A MOMENT WITH SAMANTHA MUMBA

Interviewer: Ok, we've gone out on location today. We've come to the other Smash Hits studios in the UK, because I needed to catch up with my mate Samantha Mumba. And she's here! Samantha: Hello! Inte

经济学人:分子生物学 蛋白质的奥秘(3)

One common protein-contact prediction is that, if the side chain of one member of a pair of amino acids brought close together by folding is long, 一种比较普通的蛋白质接触预测就是，如果一对氨基酸的一个侧链折叠后很长，

牛津少儿英语 let's chant 2 - The Hello Song (musc only)

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美国国家公共电台 NPR Maimouna Youssef AKA Mumu Fresh Is Ready For The Spotlight

ROBERT GARCIA, HOST: What's up, everybody. Peace. Just a heads up, there may be some strong language in this episode. ADRIAN BARTOS, HOST: Ooh, some bad words (laughter). MAIMOUNA YOUSSEF: So my mother, she tells the story that she knew I could sing

TED演讲:如何把熟蛋变生(2)

Here's the key part. 接下来是关键的部分。 The solution nearest the wall spins faster than the solution closer to the middle. 离试管壁最近的溶液，要比中间的溶液旋转得更快。 That difference in velocity creates sheer str

SSS 2011-01-27

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

SSS 2008-09-04

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

VOA常速英语2007年-Flamingo Meat Being Sold Illegally in Mubai Mar

By Steve Herman New Delhi 15 December 2007 Indian police say they have apprehended two men caught on videotape shooting flamingos near Mumbai. VOA correspondent Steve Herman reports from New Delhi that flamingo meat is selling cheaper than chicken in

SSS 2008-10-08

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? The Nobel Prize in chemistry goes to three men who revolutionized molecular life science, Japans Osamu Shimomura and Americans Martin Chalfie and Roger Tsien. They dev

SSS 2008-05-05

This is Scientific American's 60-Second Science, Im Steve Mirsky. Got a minute? Biologists often attempt to construct a genealogy that shows the relationships of all life on earth. One well-accepted effort compares the nucleic acid sequences that cod

SSS 2009-10-07

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

U2 绝对经典 muzik u2

U2 绝对经典 muzik u2

Mad Cow Disease

74 疯牛病及其最新的检验方法 DATE=7-24-01 TITLE=SCIENCE IN THE NEWS #2134 - Mad Cow Disease BYLINE=Nancy Steinbach, George Grow VOICE ONE: This is Sarah Long. VOICE TWO: And this is Steve E

VOA常速英语2007年-Mukasey Sworn in as US Attorney General

By Scott Stearns White House 14 November 2007 President Bush says America's new top law enforcement official will bring clear purpose and resolve to the Justice Department. VOA White House Correspondent Scott Stearns reports, Mr. Bush attended the ce

voa标准英语2008-US Renews Call for Pakistani Cooperation in Mumb

The United States Tuesday renewed its call on Pakistan to fully cooperate with the Indian-led investigation of the terrorist attacks in Mumbai. U.S. officials say they suspect a group based at least partly in Pakistan may be behind the operation. VO

Using bacteria to generate energy hopeful

BEIJING, May 24 (Xinhuanet) -- Scientists revealed for the first time the molecular structure of proteins, which enables bacteria to transfer electrical charges, according to a new study. The revelation was published in Proceedings of the National Ac

Human fertilization process discovered

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

Li Na into last 16 of Mutua Madrid Open

MADIRD, May 7 (Xinhua) -- No. 8 seed Li Na enjoyed a comfortable passage into the last 16 of the Mutua Madrid Open on Monday after defeating Spaniard Silvia Soler Espinosa in straight sets 6-3, 6-1. Li Na showed the power of her serve and looked stro

健康生活 从食物搭配开始

There has been a lot of research done on the significance of food combining when we eat. Many believe that our stomach is designed to only digest food correctly one food type at a time or eating foods together that are compatible with each other. Thi

经济学人:熊猫遗传学:熊猫的第二拇指(2)

He and his colleagues noted parallel changes in the genes for three digestive enzymes whose job is to liberate two particular amino acids, lysine and arginine, from proteins. 他的团队发现三种消化酶基因相似的改变，这些消化酶的作