氨血吡啶

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,

发表于:2018-12-05 / 阅读(144) / 评论(0) 分类 经济学人科技系列

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

发表于:2018-12-05 / 阅读(148) / 评论(0) 分类 经济学人科技系列

越来越多的人居住在异国他乡。有三到四个身世来源的作家皮柯.耶尔(Pico Iyer) 思索着家的意义,旅行的乐趣和静止的平和。

发表于:2018-12-09 / 阅读(181) / 评论(0) 分类 TED公开课:地球村

Voice 1 Welcome to Spotlight. I'm Liz Waid. Voice 2 And I'm Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 The sounds of traffic! You can h

发表于:2018-12-19 / 阅读(128) / 评论(0) 分类 环球英语 Spotlight

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

发表于:2018-12-24 / 阅读(145) / 评论(0) 分类 Scientific American(一)月

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

发表于:2018-12-24 / 阅读(119) / 评论(0) 分类 Scientific American(四)月

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

发表于:2019-01-02 / 阅读(204) / 评论(0) 分类 科技之光

发表于:2019-01-03 / 阅读(135) / 评论(0) 分类 医务英语

SCIENCE REPORT - January 2, 2002: New Cold Drug By Nancy Steinbach This is the VOA Special English Science Report. American researchers say they have developed the first drug that can effectively trea

发表于:2019-01-07 / 阅读(152) / 评论(0) 分类 科技之光

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

发表于:2019-01-08 / 阅读(132) / 评论(0) 分类 Scientific American(十)月

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

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 Scientific American(九)月

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

发表于:2019-01-26 / 阅读(187) / 评论(0) 分类 经济学人科技系列

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

发表于:2019-01-26 / 阅读(171) / 评论(0) 分类 经济学人科技系列

Vieques Controversy May Persist After the Bombing Ends Michael Bowman Miami 18 Jun 2001 22:05 UTC Protests continued Monday on the Puerto Rican island of Vieques, days after the Bush administration an

发表于:2019-01-31 / 阅读(164) / 评论(0) 分类 VOA2001-国际风云(1)

Japanese designer Pico has combined her love of cats and handbags to create highly realistic purses. The bags are shaped like kitties with whiskersand tails. Each cat-bag is priced at about $500 to $700, but buyers dont seem to mind the steep pricing

发表于:2019-02-07 / 阅读(126) / 评论(0) 分类 阅读空间

There are actually twenty-two naturally occurring amino acids known on Earth, 实际上,地救上有22种天然存在的氨基酸, and more may await discovery, but only twenty of them are necessary to produce us and most other living things. 更多

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 万物简史

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

发表于:2019-02-17 / 阅读(131) / 评论(0) 分类 万物简史

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

发表于:2019-02-17 / 阅读(108) / 评论(0) 分类 万物简史

Lana Del Rey 微电影《Tropico》!电影艺术赋予了这个倾倒众生的女人一个展示灵魂的机会,这是你无法在平时见到的美丽躯体,意味深长的镜头切换唤醒了我们对于神秘之美的好奇,玄妙的音乐如

发表于:2019-02-17 / 阅读(128) / 评论(0) 分类 流行英文歌曲

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

发表于:2019-02-18 / 阅读(380) / 评论(0) 分类 阅读空间
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