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SSS 2010-07-28

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will take just a minute. Spend any time in a bar, and sooner or later youll hear, Ill have what shes having. It sounds like a bad pickup line, but there may be an actual biological

发表于:2018-12-24 / 阅读(40) / 评论(0)

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SSS 2008-03-03

This is Scientific American's 60-Second Psych, I'm Christopher Intagliata, got a minute? While at Stanford in the mid-1960s, One Flew Over the Cuckoo's Nest author Ken Kesey started adding a peculiar ingredient to his home-cooked venison stew--LSD. N

发表于:2019-01-08 / 阅读(80) / 评论(0)

Scientific American(三)月

SSS 2009-06-02

Leptin is a hormone made by fat cells that tells you when you're full. If you didn't have leptin---and some people don't---youd eat way too much, get real fat and almost certainly develop diabetes. Leptin acts like a natural appetite suppressant. Kid

发表于:2019-01-08 / 阅读(77) / 评论(0)

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VOA常速英语2016--疟疾疫苗研制取得新进展

疟疾疫苗研制取得新进展 British researchers have discovered a biochemical key used by the malaria parasite to invadehuman blood cells. The discovery could pave the way for an effective malaria vaccine. ThePlasmodium malaria parasite has a c

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经济学人69:外因遗传与压力新生儿蓝调曲

Science and Technology Epigenetics and stress Baby blues 科技外因遗传与压力新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(59) / 评论(0)

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TED演讲:昭示长寿的实验(2)

Okay. 好了 So what is the daf-2 gene? 那么daf-2基因到底是什么？ Well as you know, genes, which are part of the DNA, 正如大家所知，基因是DNA的一部分 they're instructions to make a protein that does something. 它们是经编码

发表于:2019-02-14 / 阅读(50) / 评论(0)

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