氨基杀菌素

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(96) / 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(101) / 评论(0) 分类 经济学人科技系列

By Cathy Majtenyi Murambi, Rwanda 12 July 2007 Rwanda's rolling green countryside and laid-back city life paint a picture of peace and tranquility. But beneath the calm surface, the people of this African Great Lakes country are still struggling to c

发表于:2018-12-12 / 阅读(127) / 评论(0) 分类 2007年VOA标准英语(七月)

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

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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(71) / 评论(0) 分类 Scientific American(四)月

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

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Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i

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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

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发表于:2019-01-03 / 阅读(73) / 评论(0) 分类 医务英语

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(91) / 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

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By Benjamin Sand Irbil, Iraq 17 October 2006 Saddam Hussein adjusts his headphones as he listens to witness testimony during his trial in Baghdad's heavily fortified Green Zone, October 17, 2006 The genocide trial of former Iraqi leader Saddam Husse

发表于:2019-01-09 / 阅读(121) / 评论(0) 分类 2006年VOA标准英语(十月)

By Brian Padden Irbil, Iraq 28 August 2006 Kurdish leaders in Iraq say they want to be sure prosecutors build the strongest case possible against Saddam Hussein and six of his military commanders charged with genocide in the Anfal military operation

发表于:2019-01-11 / 阅读(152) / 评论(0) 分类 2006年VOA标准英语(八月)

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

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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(140) / 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

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Police officers escort Ricardo Valles de la Rosa, right, to a court hearing in Ciudad Juarez, Mexico, 30 Mar 2010 In Juarez, Mexico, authorities say a suspect they detained last week in connection with the March 13 murder of two US citizens has told

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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(78) / 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(56) / 评论(0) 分类 万物简史

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(334) / 评论(0) 分类 阅读空间
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Benj.
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children's department
chord of the ninth
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Coral Gables
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Parasenecio palmatisectus
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Pascha
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