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

2006年VOA标准英语-Drought Ravages East Africa

By Cathy Majtenyi Nairobi 07 February 2006 The drought ravaging the East Africa area is having a severe impact on millions of people. Experts note a steady decrease in rainfall amounts, over the past

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

2006年VOA标准英语-Indonesia's Tsunami-Ravaged Aceh Province Strug

By Nancy-Amelia Collins Banda Aceh 23 December 2006 An Acehnese man works on building a new house in a village destroyed by the 2004 tsunami, in Banda Aceh, 10 Dec. 2006 Indonesia's devastated Aceh province is still struggling to rebuild two years a

美国国家公共电台 NPR 'Elena Of Avalor' Takes The Throne As Disney's First Latina Princess

ROBERT SIEGEL, HOST: This year, Disney premiered its first Latina princess. (SOUNDBITE OF SONG, ELENA OF AVALOR THEME SONG) GABY MORENO: (Singing) Elena, Elena of Avalor. SIEGEL: Elena of Avalor sings and plays guitar. She goes on adventures and rule

2006年VOA标准英语-Mouth Disorder Ravages Many Children in De

By Jessica Berman Washington 18 January 2006 Noma, a disfiguring mouth disease, can be found in many extremely poor countries, but the condition is especially common in sub-Saharan Africa. Noma comes

2006年VOA标准英语-Death Toll From Java Tsunami Rises

By Chad Bouchard Jakarta 18 July 2006 At least 320 people are dead, hundreds are injured and nearly 3,000 have been left homeless by the tsunami that battered the Indonesian island of Java Monday. Aid agencies are assessing damage from the powerful

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

Avai grab first win of Brazilian Championship

RIO DE JANEIRO, July 16 (Xinhua) -- Avai grabbed the first win in the Brazilian Championship after ten rounds as they beat Atletico-GO 1-0 at home on Saturday. The game's only goal came in the first half by veteran striker William. Atletico-GO's goal

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

Internacional beats Avai 3-1

RIO DE JANEIRO, July 21 (Xinhua) -- Under command of interim head coach Osmar Loss, Internacional came-from-behind on the road against Avai to win 3-1 in the 11th round of the Brazilian Championship on Thursday. The win snaps a three-game losing stre

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