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，

经济学人:分子生物学 蛋白质的奥秘(2)

One of the leading researchers in the field of protein folding is David Baker of the University of Washington, in Seattle. 西雅图华盛顿大学的David Baker是蛋白质折叠领域研究者的领军人物之一。 For the past 20 years he and hi

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2010年-Graphene Discovery Wins Nobel Prize

It started with a simple experiment: take some graphite - the black stuff in the middle of a pencil - and put a piece of tape over it. When the scientists at the University of Manchester did that, they found that they could develop a material that co

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

THIS IS AMERICA - Glen Echo Park

THIS IS AMERICA - Glen Echo Park By Jerilyn Watson Broadcast: Monday, June 14, 2004 (MUSIC) VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Faith Lapi

人生的回音The Echo

A son and his father were walking on the mountains. Suddenly, the son falls, hurts himself and screams, AAAhhhh!!!To his surprise, he hears the voice repeating, somewhere in the mountain, AAAhhhh!!! Curious, he yells, Who are you? He receives the ans

美国达人鹦鹉Echo 模仿各种声音堪称一绝

What's your name? 你叫什么名字 My name is Sarah Hoft. This here, this is Echo. 我叫 Sarah Hoft.这是回声 How old is he? 他几岁 He is a 15-year-old w-yellow-headed amazon. (A kind of parrot) 他15岁。双黄头亚马逊鹦鹉（一种鹦鹉

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

散文欣赏-回声 Echo

Long long ago, there was a nymph whose name was Echo. She liked talk very much, and she always repeated what she had just said.One day, she offended[2] her master, the great Hera by speaking rudely to her, she decided that echo should never use her v

音乐咖啡厅:Christina Grimmie - Echo

Boy I don't understand your drama Thought we were having fun should I not have called you Should I be sorry for being me I'm just trying piece together your mind You and me were cool when I saw you last night Now we're in this state of emergency Oh y

听歌学英语：ECHO (LET GO)-Breathe Carolina

Hideaway hide away, hiding from your call 我隐藏，我躲避，回避你的来电 Founda place, found a place, we could have it all 我寻觅，我找寻，探寻一片圣地 ButI wish I never followed innocent, innocent 但我希望自己从不循规