[化] 氨基己糖

By Lisa Schlein Geneva 30 December 2006 The U.N. refugee agency says it is preparing for the possible exodus of thousands of Somalis to neighboring countries, in the wake of the fighting between Ethiopian-backed government troops and Islamist fighte

发表于:2018-11-29 / 阅读(361) / 评论(0) 分类 2006年VOA标准英语(十二月)

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(306) / 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(338) / 评论(0) 分类 经济学人科技系列

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(316) / 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(286) / 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!

发表于:2018-12-30 / 阅读(370) / 评论(0) 分类 单词解析速记

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(391) / 评论(0) 分类 科技之光

发表于:2019-01-03 / 阅读(281) / 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(332) / 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(287) / 评论(0) 分类 Scientific American(九)月

By David McAlary Washington 06 December 2006 New biological evidence casts more doubt on Libyan government charges against six imprisoned Bulgarian and Palestinian medical workers accused of deliberately infecting several-hundred Libyan children wit

发表于:2019-01-09 / 阅读(369) / 评论(0) 分类 2006年VOA标准英语(十二月)

By Doug Levine Washington 17 January 2007 Renowned jazz saxophonist and composer Michael Brecker died January 13 of leukemia in a New York City hospital. He was 57 years old. As VOA's Doug Levine tells us, Brecker's impact on today's generation of ja

发表于:2019-01-16 / 阅读(374) / 评论(0) 分类 2007年VOA标准英语(一月)

A number of senior executives from the Chinese division of GlaxoSmithKline are the focus of a criminal investigation. The Ministry of Public Security has been questioning a number of GSK employees amid allegations they offered large bribes to governm

发表于:2019-01-19 / 阅读(321) / 评论(0) 分类 世界各地新闻集锦

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(399) / 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(331) / 评论(0) 分类 经济学人科技系列

AMERICAN MOSAIC - Watergate, Nixon, 'Deep Throat': What Was That All About? By Nancy Steinbach and Caty Weaver Broadcast: Friday, June 17, 2005 (MUSIC) Welcome to AMERICAN MOSAIC, in VOA Special Engli

发表于:2019-01-30 / 阅读(434) / 评论(0) 分类 American Mosaic

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(399) / 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(324) / 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(279) / 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(559) / 评论(0) 分类 阅读空间
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advanced guard
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