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(44) / 评论(0) 分类 经济学人科技系列

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Birds and sea turtles can migrate thousands of miles, by reading the Earth's magnetic cues. But we too might have magnetic sensing abilitiesin our eyes. So say

发表于:2018-12-24 / 阅读(26) / 评论(0) 分类 Scientific American(六)月

Linus Paulingby Linda BaxterLinus Pauling was the only person who has ever won two (unshared) Nobel Prizes: for Chemistry in 1954, and a Nobel Peace Prize in 1962. He is also known as the vitamin C man. Who was Linus Pauling and what did he do?Linus

发表于:2019-01-02 / 阅读(88) / 评论(0) 分类 英文杂志-Magazine

学科SUBJECTDISCIPLINES 科目Subjects 声学Acoustics 农业生态学Agriculturalecology 农业经济学Agriculturaleconomics 农业工程Agriculturalengineering 农业林学Agroforestry 分析化学

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A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar

发表于:2019-02-06 / 阅读(46) / 评论(0) 分类 VOA标准英语2008年(十月)

Vronique LaCapra | Washington 02 December 2009 A very small genetic difference between humans and chimpanzees may help explain why chimpanzees can't speak, but humans can The ability to communicate using complex spoken language is a uniquely human ch

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