标签：embryonic 相关文章

【英语时差8,16】背后的蓝色胎记

Parents of East Asian, East African and Native American descent are not usually surprised when their babies are born with distinctive blueish-gray or blueish-green birthmarks on their backside. Eighty to ninety-five percent of infants from these ethn

发表于:2018-12-03 / 阅读(49) / 评论(0) 分类 英语时差8，16

彭蒙惠英语：New Hope for Spinal Cord Injuries

New Hope for Spinal Cord Injuries By Patricia Anstett / 2005, Detroit Free Press , Knight Ridder Newspapers. Distributed by Tribune Media Services. A world of patients with spinal cord injuries is wat

发表于:2018-12-19 / 阅读(74) / 评论(0) 分类 彭蒙惠英语

【英语时差8,16】用普通人的细胞制造干细胞

Making Stem Cells From Ordinary Adult Cells Most cells in our bodies are unipotent, that is they stay the same throughout their lives. For example, once a skin cell, always a skin cellthey never start turning into brain cells. The exception is stem c

发表于:2018-12-27 / 阅读(55) / 评论(0) 分类 英语时差8，16

4-12 克隆创造人类胚胎

Cloning 1 Creates Human Embryos Scientists in South Korea and America report that they have created human embryos through cloning and extracted embryonic 2 stem cells 3 , the universal cells that hold

发表于:2018-12-30 / 阅读(68) / 评论(0) 分类 英语沙龙2004全年合辑上

SCIENCE REPORT - New Stem Cell Study

SCIENCE REPORT — March 27, 2002: New Stem Cell Study By Mario Ritter This is the VOA Special English SCIENCE REPORT. Researchers at an American medical center say special stem cells in normal human

发表于:2019-01-02 / 阅读(124) / 评论(0) 分类 科技之光

SCIENCE IN THE NEWS - As Butterflies Head South to Mexico, H

SCIENCE IN THE NEWS - As Butterflies Head South to Mexico, Humans Fly Along By Caty Weaver, Jill Moss and George Grow Broadcast: Tuesday, October 04, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEW

发表于:2019-01-02 / 阅读(61) / 评论(0) 分类 科技之光

专业术语—口腔生理学术语M1(英文详解)

Macrophages - cells derived from monocytes which have the ability to phagocytose foreign particles and dead tissue and to move through tissue, or to remain fixed in one place. There are many macrophag

发表于:2019-01-03 / 阅读(98) / 评论(0) 分类 医务英语

专业术语—口腔生理学术语E1(英文详解)

Ecological balance - astable balance in the numbers of each species in an ecosystem. In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different or

发表于:2019-01-03 / 阅读(90) / 评论(0) 分类 医务英语

CNN 2009-03-10

Hi, there, it is so good to see you today, from the CNN Center in Atlanta, I'm Virginia Cha. I wanna thank you for joining us, here is a look at what's happening NOW IN THE NEWS. By executive order, President Obama is expected to end restrictions on

发表于:2019-01-07 / 阅读(75) / 评论(0) 分类 CNN2009年(三)月

CNN 2009-03-08

Hi, everyone, Im Asieh Namdar at the CNN.com newsroom in Atlanta. Here is a look at whats happening NOW IN THE NEWS. 3.3 million jobs have been cut over the last 6 months. Thats after the latest round of unemployment numbers which show 651,000 peopl

发表于:2019-01-07 / 阅读(75) / 评论(0) 分类 CNN2009年(三)月

美联社新闻一分钟 2007-06-21

1. South Carolina Coroner's Office says a combination of smoke inhalation and burns killed the nine firefighters inside a burning furniture store in Charleston. They died after the roof collapsed on top of them. Investigators say arson is not suspec

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 美联社新闻一分钟2007

VOA双语新闻 Bush Vows to Veto Stem Cell Bill

President Bush says he will veto legislation that would relax restrictions on embryonic stem cell research. There is growing bipartisan support in Congress for changing those rules. 布什总统表示他将否决要求放松对胚胎干细胞研究限制

发表于:2019-01-19 / 阅读(64) / 评论(0) 分类 VOA双语新闻 Bilingual News

美国科学60秒 SSS 2013-06-14

Stem cells are prised for their ability to give rise to a variety of specialized cell types, including heart, liver, nerve and bone. Unfortunately, it's the stem cells from embryos that have shown the biggest potential, for generating both a range of

发表于:2019-01-20 / 阅读(74) / 评论(0) 分类 Scientific American(六)月

科学美国人60秒 SSS 2013-09-11

In the east African savanna, pools of water form during the rainy season only to dry up a few months later. Being a fish in one of these temporary ponds is a challenge. To survive, they race to maturity, with the shortest generation time of any verte

发表于:2019-01-20 / 阅读(56) / 评论(0) 分类 Scientific American(九)月

奥巴马每日发言As Prepared for Delivery(2009-03-09)

暂无音频 Remarks of President Barack Obama As Prepared for Delivery Signing of Stem Cell Executive Order and Scientific Integrity Presidential Memorandum Washington, DC March 9, 2009 Today, with the Executive Order I am about to sign, we will bring

发表于:2019-01-26 / 阅读(101) / 评论(0) 分类 美国总统每日发言

60秒科学:Beating Heart Tissue from Stem Cells

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(118) / 评论(0) 分类 60秒科学

茎细胞对于疾病治疗的神奇功效

26 茎细胞对于疾病治疗的神奇功效 DATE=5-24-01 TITLE=SCIENCE REPORT - Progress in Stem Cell Research BYLINE=Caty Weaver （Start at 59

发表于:2019-01-30 / 阅读(174) / 评论(0) 分类 自然探索

HEALTH REPORT - Medical Award Honors Two Scientists Who Foun

HEALTH REPORT - Medical Award Honors Two Scientists Who Found Stem Cells By George Grow Broadcast: Wednesday, October 05, 2005 I'm Faith Lapidus with the VOA Special English Health Report. Two scienti

发表于:2019-01-30 / 阅读(54) / 评论(0) 分类 健康与经济

学个词Learn a Word 第677期 Ethical

今天我们要学的词是ethical。 Ethical, 合乎伦理道德标准的。 Elected officials should be held to the highest ethical standards, 民选产生的官员应该遵守最高标准的伦理和道德准则。 美国总统奥巴马星期一签署

发表于:2019-02-04 / 阅读(70) / 评论(0) 分类 英语单词荟萃

VOA慢速英语2019--The Rules of Word Stress, Part 2

You may remember last weeks program, in which I talked about rules of English word stress for two-syllable words. If you missed that program, take a few minutes to read and listen to it first and then join us here. This week, we continue talking abou

发表于:2019-02-19 / 阅读(68) / 评论(0) 分类 2019年VOA慢速英语(二)月
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