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，

访谈录 2010-04-06&04-09 你知道什么是dip么

Of course over our Super Bowl black party be, special here New Orleans, there a little food, yeah chef, thats what I am talking about. Of course the great Emeril Lagasse is already there at Super Bowl Centre, he is in Miami. Gona be seeing him soon b

SSS 2009-01-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

SSS 2009-04-28

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

Designer Antibiotics

85 新功效的抗生素在加州诞生 DATE=8-15-01 TITLE=SCIENCE REPORT - Designer Antibiotics BYLINE=Jerilyn Watson （Start at 1'04

专业术语—基因专业词汇A/B

SSS 2008-10-17

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. In 1953 a student named Stanley Miller did an experiment showing that the simple chemicals present on the early Earth could give rise to the basic buildi

SSS 2009-09-17

The early Earths oceans were home to a lot of interesting chemistry. Now scientists have found that amino acids thought to be present way back when could have been cooked into other compounds vital for lifean idea you should take with a grain of salt

voa标准英语2008年-Oil Prices Dip Briefly Below $60, Then Rally

Oil prices in Asia slipped briefly below $60 a barrel for the first time in more than 18 months, then rallied to $61, after a two-day plunge. From Sydney, Phil Mercer reports. Analysts say that worries over the state of the world economy and prospec

VOA标准英语2010-Millions of Hindus Take Holy Dip in River

A Hindu holy man, waves the Indian national flag as he takes a holy dip in the River Ganges, holy to Hindus, during the main Royal Bath at the Kumbh Mela festival in Haridwar, India, 14 Apr 2010 In the northern Indian town, Haridwar, millions of Hind

美国国家公共电台 NPR A Dip In Global Prices Creates Cocoa Crisis For Ivory Coast's Farmers

ARI SHAPIRO, HOST: The price of cocoa has collapsed on international markets. That's devastated hundreds of thousands of small farmers in West Africa, which produces most of the world's cocoa. Alex Duval Smith reports from San Pedro in Ivory Coast, t

Davos Experts Warn of Double Dip

While European investors are becoming increasingly skeptical about Greece, Ireland, Italy, and Spain's ability to recover from the economic crises, EU governments are having a difficult time coming up with a unified stance on how to deal with the iss

经济学人152:攻破屏障

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

经济学人107:克雅氏病 攻破屏障

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

学个词Learn a Word 第1527-dip

今天我们要学的词是dip. Dip is spelled d-i-p, dip. Dip的意思是下降，下沉。比如，The 30-year fixed mortgage rate dipped again last week. 30年期固定抵押贷款利率上个星期再次跌落。根据一项统计，In the U.S.,

VOA标准英语2009年-Burmese Democracy Leader Meets Western Dip

By Daniel Schearf Bangkok 09 October 2009 Burma's detained democracy leader Aung San Suu Kyi has been allowed a rare meeting with Western diplomats to discuss sanctions against Burma. Burmese authorities allowed Aung San Suu Kyi Friday to meet with

万物简史 第407期:生命的起源(1)

19 The Rise Of Life 第十九章 生命的起源 In 1953, Stanley Miller, a graduate student at the University of Chicago, took two flasksone containing a little water to represent a primeval ocean, 1953年，芝加哥大学的研究生斯坦利米勒拿

万物简史 第408期:生命的起源(2)

Proteins are what you get when you string amino acids together, and we need a lot of them. 你把氨基酸串在一起，就得到了蛋白质。我们需要大量的蛋白质。 No one really knows, but there may be as many as a million types of pro

每天吃鲑鱼 像戒烟一样有益

Eating a small steak every day could be as good for you as stopping smoking, scientists say. 科学家说，每天吃一小块牛排可以像戒烟一样对你有好处。 People who eat lots of protein-rich food were found to have lower blood pressu

美国国家公共电台 NPR Not Expecting Back Pay, Government Contractors Collect Unemployment, Dip Into Savings

STEVE INSKEEP, HOST: Several kinds of people are directly affected by the partial government shutdown. There are federal workers who are furloughed, not being paid. There are federal workers who must work and are also not being paid. They may get bac