标签：embryonic 相关文章

NPR 2011-07-28

Facing a rebellion from fellow House Republicans over his debt ceiling plan, Speaker of the House John Boehner took a hard line today, trying to drum up more support. NPR's David Welna reports Boehner postponed a House vote on his plan until tomorrow

发表于:2018-12-02 / 阅读(100) / 评论(0) 分类 2011年NPR美国国家公共电台7月

NPR 2008-09-26

After a summit at the White House today between top congressional leaders, the president and both presidential candidates as well, a proposed 700-billion-dollar financial bailout deal now appears to be in some flux. NPR's Debbie Elliott has more. Co

发表于:2018-12-02 / 阅读(87) / 评论(0) 分类 2008年NPR美国国家公共电台九月

NPR 2009-01-24

President Obama met this morning with a bipartisan group of lawmakers to discuss the economic stimulus package. Afterward, leaders of both parties said they expected to have a proposal ready for the president by mid-February. NPR's Scott Horsley has

发表于:2018-12-02 / 阅读(83) / 评论(0) 分类 2009年NPR美国国家公共电台1月

NPR 2010-08-25

Sales of previously occupied homes are down sharply by 27 percent in July to the lowest level since 1995. Those figures come from the National Association of Realtors. NPR's Paul Brown reports some analysts think sales and prices could go still lower

发表于:2018-12-02 / 阅读(80) / 评论(0) 分类 2010年NPR美国国家公共电台8月

SSS 2009-12-22

In 2008 astronomers discovered surprising amounts of water molecules where planets were forming near young stars. But how, they wondered, could those molecules survive? They should have been destroyed by ultraviolet radiation. In theory, planetary du

发表于:2018-12-02 / 阅读(93) / 评论(0) 分类 Scientific American(十二)月

SCIENCE IN THE NEWS - Top stories of 2001

SCIENCE IN THE NEWS -January 8, 2002: Top stories of 2001 By Nancy Steinbach VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Doug Johnson with the Special English program SCIENCE IN THE NEWS. T

发表于:2018-12-07 / 阅读(53) / 评论(0) 分类 科技之光

VOA慢速英语--科学家离创造实验室胚胎更近了一步

Scientists Come Closer to Creating Laboratory Embryos An international team of scientists says it has moved a step closer to creating artificial embryos. The team used stem cells from mice. Stem cells are simple cells that can develop into other kind

发表于:2018-12-17 / 阅读(43) / 评论(0) 分类 2018年VOA慢速英语(八)月

2015-01-30 BBC:星光七纪元-5

Many regions within these clouds can stay like that for ever for millions of years until something happens, a trigger and then a star forms.The trigger for such a monumental event doesn't have to be much, two clouds conbine as they pass, or a distant

发表于:2018-12-27 / 阅读(73) / 评论(0) 分类 探索与发现2015年

99.3b上海英语高级口译资格证书第一阶段考试

SECTION 4: LISTENING TEST (30 minutes) Part A: Note-taking and Gap-filling Directions: In this part of the test you will hear a short talk. You will hear the talk only once. While listening to the tal

发表于:2018-12-30 / 阅读(184) / 评论(0) 分类 高级口译真题及答案

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(87) / 评论(0) 分类 美丽新世界

TED演讲:医学的未来?也许是手机上的一个应用程序(5)

We use those in my field of bone marrow transplantation. 我们把这些干细胞用于骨髓移植领域。 Geron, just last year, started the first trial using human embryonic stem cells to treat spinal cord injuries. 杰龙去年开始第一次尝试

发表于:2019-01-03 / 阅读(92) / 评论(0) 分类 TED演讲科学篇

美联社新闻一分钟 2006-10-28

1. Condolence s came from the White House Friday to the U. S. Forest Service following the deaths of four firefighters in a California wildfire. The spokesman for the President said in a phone convers

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 美联社新闻一分钟2006

SCIENCE IN THE NEWS - U.S. Scientists Find a Way to Create E

SCIENCE IN THE NEWS - U.S. Scientists Find a Way to Create Embryonic Stem Cells With Adult Skin Cells By Cynthia Kirk, Nancy Steinbach, and Caty Weaver Broadcast: Tuesday, August 30, 2005 (MUSIC) VOIC

发表于:2019-01-11 / 阅读(82) / 评论(0) 分类 科技之光

VOA慢速英语 2007 1017a

This is the VOA Special English Health Report. This year's Nobel Prize in medicine will go to three researchers who found a way to learn about the duties of individual genes. They discovered how to inactivate, or knock out, single genes in laborator

发表于:2019-01-11 / 阅读(120) / 评论(0) 分类 VOA慢速英语2007年（十）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(150) / 评论(0) 分类 VOA慢速英语2007年（十二）月

美丽新世界Brave New World 第16章(6)

Only an Epsilon can be expected to make Epsilon sacrifices, for the good reason that for him they aren't sacrifices; 爱扑塞隆式的牺牲只能由爱扑塞隆来做。有个很好的理由，爱扑塞隆们并不觉得在做牺牲。 they're the

发表于:2019-01-29 / 阅读(98) / 评论(0) 分类 美丽新世界

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(209) / 评论(0) 分类 英语新闻

美联社一分钟新闻 2009-03-09

The pastor of a suburban Saint Louis church dead after a gunman opened fire in the middle of a Sunday service.Police said minister deflected one bone as the Bible before the re-struckened the chest. Two other were slashed as they wrestled the shoote

发表于:2019-02-11 / 阅读(126) / 评论(0) 分类 美联社新闻一分钟2009年(三)月

经济学人347:胚胎干细胞 进展中的干细胞研究

Science and technology 科学技术 Embryonic stem cells 胚胎干细胞 Looking up 进展中的干细胞研究 Stem-cell research is now bearing fruit 干细胞研究开始结出硕果 FOURTEEN years ago James Thomson of the University of Wisconsin

发表于:2019-02-16 / 阅读(88) / 评论(0) 分类 经济学人科技系列

经济学人319:诺贝尔生理学奖 再生医学界的大好人

Science and technology 科学技术 The 2012 Nobel prizes 诺贝尔生理学奖 Good eggs 再生医学界的大好人 THIS year's Nobel physiology prize goes to Sir John Gurdon and Shinya Yamanaka for a crucial discovery in stem-cell science?how to m

发表于:2019-02-24 / 阅读(82) / 评论(0) 分类 经济学人科技系列
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