标签：embryos 相关文章

NPR 2010-08-24

Federal officials are focusing on manufacturing and processing facilities as they work to get to the bottom of a salmonella outbreak in eggs. The Food and Drug Administration says there haven't been many standards in place for farms like the two in I

发表于:2018-12-02 / 阅读(70) / 评论(0) 分类 2010年NPR美国国家公共电台8月

有声英文阅读-克隆一个你？

Is Cloning the Future? Saving lives has always been an important mission of science. Now science, and indeed all society, is facing a new dilemma:whether or not to try and save more lives through huma

发表于:2018-12-31 / 阅读(74) / 评论(0) 分类 有声英文阅读

美丽新世界Brave New World 第1章(9)

On Rack 10 rows of next generation's chemical workers were being trained in the toleration of lead, caustic soda, tar, chlorine. 第十道架上一排排下一代的化学工人正在承受着铅毒、苛性苏打、沥青和氯气伤害的锻炼。

发表于:2019-01-01 / 阅读(95) / 评论(0) 分类 美丽新世界

美丽新世界Brave New World 第1章(7)

He rubbed his hands. For of course, they didn't content themselves with merely hatching out embryos: any cow could do that. 他搓搓手。因为当然，他们并没有以孵化出胚胎为满足：孵化胚胎是无论哪条母牛都能干的事。

发表于:2019-01-01 / 阅读(64) / 评论(0) 分类 美丽新世界

VOA慢速英语20060830a

HEALTH REPORT - Scientists Develop Stem Cells Without Loss of EmbryosBy Caty Weaver Broadcast: Wednesday, August 30, 2006 This is the VOA Special English Health Report. Researchers say they have found

发表于:2019-01-02 / 阅读(58) / 评论(0) 分类 2006年慢速英语（八）月

SSS 2009-10-15

One of the goals of regenerative medicine is to make tissue to replace our own damaged body parts. Thats still a ways off. But starting with mouse embryonic stem cells, researchers have succeeded in creating heart muscle that actually beats. The stud

发表于:2019-01-08 / 阅读(98) / 评论(0) 分类 Scientific American(十)月

SSS 2011-04-05

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? A rolling stone gathers no moss. But a salamander embryo can attract algae inside its tissues and cells. This intimate co-habitationthe first ever seen between algae and a

发表于:2019-01-08 / 阅读(120) / 评论(0) 分类 Scientific American(四)月

SSS 2012-02-09

This Scientific Americans 60 senconds science. I'm Cythia Graber. This will just take a minute. How did the zebra get stripes. One theory holds that stripes help confused predators. But stripes might be primarilly to protect zebras from ferocious ins

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(二)月

NPR 2009-03-11

From NPR News in Washington, I'm Jack Speer. In a surprising development, the lawyer for disgraced money manager Bernard Madoff has told a federal judge he will plead guilty later this week to 11 charges that will result in a life sentence. NPR's Ma

发表于:2019-01-08 / 阅读(85) / 评论(0) 分类 2009年NPR美国国家公共电台3月

NPR 2009-03-10

President Barack Obama today moved to officially lift the Bush administration's restrictions on human embryonic stem cell research. The move reverses a 2001 directive from Mr. Obama's predecessor in the White House. At a signing ceremony in the East

发表于:2019-01-08 / 阅读(82) / 评论(0) 分类 2009年NPR美国国家公共电台3月

NPR 2010-09-10

The State Department is warning Americans abroad to be on alert for possible protests against the US after a Florida church announced it would burn copies of the Koran this Saturday. Ahead of that, NPR's Michele Kelemen reports governments worldwide

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 2010年NPR美国国家公共电台9月

VOA慢速英语 2007 0220a

This is the VOA Special English Agriculture Report. A beetle invasion in the United States has killed at least twenty million ash trees. The invasion of the emerald ash borer was first discovered near Detroit, Michigan, in two thousand two. Experts b

发表于:2019-01-11 / 阅读(92) / 评论(0) 分类 VOA慢速英语2007年（二）月

VOA慢速英语 2007 0206a

This is the VOA Special English Agriculture Report. The parasites can spread from chicken to chicken through infectious droppings The chicken industry loses billions of dollars worldwide because of a disease called coccidiosis. Coccidiosis is caused

发表于:2019-01-11 / 阅读(112) / 评论(0) 分类 VOA慢速英语2007年（二）月

VOA慢速英语 2007 1204b

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. VOICE TWO: File photo of embryonic stem cells in a laboratory dish And I'm Pat Bodnar. This week, we will tell about efforts to make what appear to be embryonic stem cel

发表于:2019-01-11 / 阅读(158) / 评论(0) 分类 VOA慢速英语2007年（十二）月

研究人员“培育”新脑细胞治疗大脑损伤

Researchers Repair Brain Injuries With New Cells 研究人员培育新脑细胞治疗大脑损伤 A group of researchers at Rice University in Texas are learning how to help the brain heal from serious injuries. Brain cells, called neurons, connect w

发表于:2019-01-12 / 阅读(65) / 评论(0) 分类 2016年VOA慢速英语(四)月

美丽新世界Brave New World 第13章(1)

Henry Foster loomed up through the twilight of the Embryo Store. 亨利福斯特在胚胎仓库的昏暗之中逐渐露出身影。 Like to come to a feely this evening? 今天晚上愿意去看看感官电影吗？ Lenina shook her head without spea

发表于:2019-01-29 / 阅读(101) / 评论(0) 分类 美丽新世界

胚胎技术重大突破 未来也可人工制造？

近日，《科学》杂志在线报道称，剑桥大学的科学家们通过使用两种干细胞以及一个三维支架，成功地创造出了一个能够自行组装的结构，其发育和构造非常接近自然的小鼠胚胎。科学家的研

发表于:2019-02-01 / 阅读(44) / 评论(0) 分类 阅读空间

计生法“禁止代孕”条款被删除

BEIJING, Dec. 26 (Xinhua) -- The Law Committee of the National People's Congress (NPC) has suggested to delete a controversial provision on banning surrogate pregnancy in a draft law amendment. Lawmakers have quite different opinions over this provis

发表于:2019-02-03 / 阅读(68) / 评论(0) 分类 英语新闻

【有声英语文学名著】美丽新世界（1）

Brave New World by Aldous Huxley Chapter One A SQUAT grey building of only thirty-four stories. Over the main entrance the words, CENTRAL LONDON HATCHERY AND CONDITIONING CENTRE, and, in a shield, the World State's motto, COMMUNITY, IDENTITY, STABILI

发表于:2019-02-16 / 阅读(261) / 评论(0) 分类 有声英语文学名著

经济学人:基因编辑技术的应用、争议和未来(2)

Nor did the procedure fulfil any unmet medical need. 此程序也未能满足任何未知医疗需求。 For the child whose genome was edited to confer resistance, the claimed benefit is protection from a virus that she may never encounter 对于为产

发表于:2019-02-25 / 阅读(70) / 评论(0) 分类 经济学人综合
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