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，

VOA标准英语2010年-Iran Inaugurates New Gas Pipeline to P

Iranian President Mahmoud Ahmadinejad, left, waves to the media during his departure ceremony as he leaves Tehran's Mehrabad airport, while accompanied by Vice-President Mohammad Reza Rahimi (file photo) Iran inaugurated part of what it said is a new

弹奏乐器对大脑有什么积极影响?

Here's What Playing an Instrument Can Do for Your Brain 弹奏乐器对大脑有什么积极影响 Great news for all you musicians out there: Playing an instrument may boost reaction time, according to a new study. The added perk is something people

美国国家公共电台 NPR Philadelphia Is Ending A Major Contract With ICE

MICHEL MARTIN, HOST: Philadelphia is ending a major contract with Immigration and Customs Enforcement. Federal immigration agents have long had access to an arrest database maintained by local authorities there. But activists and now top city officia

TED演讲:和老年痴呆症说再见(8)

How can this be? We think it's because these nuns had a high level of cognitive reserve, 这是怎么回事呢？我们认为这是因为这些修女拥有高级的认知储备， which is a way of saying that they had more functional synapses. 意味着

SSS 2009-04-30

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Forget Polly wanna cracker. Polly wants to boogie. Or so say scientists in a pair of papers in the April 30th issue of the journal Current Biology. They

VOA标准英语10月-Iran's Natural Gas Conference Raises Concerns Ove

Iran is hosting a international conference on its natural gas exports Saturday and Sunday in Tehran. Organizers say the meeting is aimed at developing Iran's rich natural gas sector. Iran is under international sanctions over its nuclear program and

SSS 2008-01-15

This is Scientific Americans' 60-Second Science. I'm Cynthia Graber . This'll just take a minute. You think we enjoy something based on its intrinsic qualities. Food should taste good because its molecules tickle our tongues. But it's much more compl

最新英语自我介绍演讲

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英语自我介绍演讲

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英文摇滚歌曲：Rhapsody of Fire - Dark Frozen World

Nekron's dark pages proclaimed the worst Of all the known prophecies Erian's book, the only possible way to stop it Had to be found The hour had come to answer The angels' last desperate call ARCANA MALA DICTA ARCANA MORTIFERA AD GLORIAM INFLAMMATUS

人机大战! 百度大脑将参加《最强大脑》!

Baidu Brain, the AI of China's Baidu online search engine will go head to head with a human, competing against each other in voice and image recognition, rather than the traditional methods of algorithm, memory and logic, reports the paper.cn. 据《澎

大学生英语自我介绍

大学生英语自我介绍 I am a third year master major in automation at Shanghai Jiao Tong University, P. R. China. With tremendous interest in Industrial Engineering, I am writing to apply for acceptance into your Ph.D. graduate program. Educati

Bolt wins men's 100m as Ross takes women's 400m

LONDON, Aug. 5 (Xinhua) -- Usain Bolt set a new Olympic record of 9.63 seconds as he won the 100 meters gold medal on Sunday night. Bolt finished ahead of fellow Jamaican, Yohan Blake, who finished in 9.75 and Justin Gattlin, who ran 9.79, one hundre

爱情确实是盲目的

科学家们证明，那句古老的格言爱是盲目的有一定的道理。 They have found that feelings of love lead to a suppression of activity in the areas of the brain controlling critical thought. 他们发现爱的感觉会抑制大脑控制

麻醉药帮助我们理解什么是意识

More than a decade ago, a 43-year-old woman went to a surgeon for a hysterectomy. She was put under, and everything seemed to be going according to plan, until, for a horrible interval, her anesthesia stopped working. She couldn't open her eyes or mo

神奇眼镜让色盲患者获得正常视觉体验

The $280 glasses, developed by a Berkeley firm, were discovered by accident, and allow sufferers to see colours which were previously muddled and muted. 这款由伯克利（Berkeley）公司开发的眼镜售价280美元，发明过程纯属偶然，能

经济学人293:航海 水晶球观海术

Science and technology 科学技术 Navigation 航海 Crystal gazing 水晶球观海术 A mineral found in a shipwreck was an ancient form of compass 在沉船里发现的矿石是古代的一种指南针 THIS may look like a nondescript lump of rock

爱自拍的看过来:姑娘,这样自拍你最美

If you've ever wondered what makes the perfect selfie, some of the world's most powerful computers have been pondering the same question. 如果你在琢磨怎样自拍更好看，世界上最强大的电脑也在思考着同样的问题。 Researche

Scientists find neural stem cell regulator

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour