基因激素

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Pregnant women shouldn't drink. It's become gospel, because of the danger of fetal alcohol spectrum disorder. Alcohol can disturb the normal development

发表于:2018-12-24 / 阅读(375) / 评论(0) 分类 Scientific American(三)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. As we recover from the holiday weekend, there is some intoxicating news on curbing the effects of alcohol. In the May 29th issue of Cell, scientists report

发表于:2018-12-24 / 阅读(318) / 评论(0) 分类 Scientific American(五)月

Our studies had really convinced me that it were the later experiences of the child as the child was growing up bombarded with years and years of, em, symptoms from the parents that accounted for the

发表于:2019-01-02 / 阅读(344) / 评论(0) 分类 基因外遗传现象

Can wearing sun glasses make you more vulnerable to sunburn? Are there people who can resist the AIDS virus better than others? Can a human body rust to death? In his new book Survival of the Sickest, a Medical Maverick discovers why we need disease.

发表于:2019-01-06 / 阅读(244) / 评论(0) 分类 访谈录

Actress Angelina Jolie has had her ovaries and fallopian tubes removed as a preventative measure against cancer. 女星安吉丽娜朱莉摘除了卵巢和输卵管,以预防器官癌变。 Writing in the New York Times, Jolie said she chose to hav

发表于:2019-01-11 / 阅读(361) / 评论(0) 分类 阅读空间

SCIENCE IN THE NEWS - Museum Aims to Keep African Archeological Treasures in Africa Also: A vaccine against meningitis proves successful in Uganda. And a study suggests genetic reasons for living longer. Transcript of radio broadcast: 12 May 2008 VO

发表于:2019-01-11 / 阅读(274) / 评论(0) 分类 VOA慢速英语2008年(五)月

This is the VOA Special English Health Report. A new study has found that a fat cell gene may reduce the risk of colon cancer in some people. The study provides what scientists say is the first evidence of a genetic link between a fat cell gene and

发表于:2019-01-11 / 阅读(218) / 评论(0) 分类 VOA慢速英语2008(十)月

AS IT IS 2014-08-25 Scientists Developing Blood Test for PTSD Post-Traumatic Stress Disorder or PTSD is caused by a frightening event, either witnessed or experienced. Signs of the disorder may include depression, bad dreams and severe nervousness. T

发表于:2019-01-12 / 阅读(304) / 评论(0) 分类 2014年VOA慢速英语(八)月

The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say

发表于:2019-01-13 / 阅读(351) / 评论(0) 分类 VOA标准英语2010年(七)月

As we recover from the holiday weekend, theres some intoxicating news on curbing the effects of alcohol. In the May 29th issue of Cell, scientists report discovering a gene that controls fruit flies sensitivity to ethanol. And if that just sounds li

发表于:2019-01-30 / 阅读(325) / 评论(0) 分类 60秒科学

Researchers believe activity and interaction activated a communication channel in mice that prompted fat cells to stop releasing a hormone which accelerates cancer growth. Related Links Cell New research has found that mice with cancer are better abl

发表于:2019-01-30 / 阅读(320) / 评论(0) 分类 VOA标准英语2010年(七)月

HEALTH REPORT - Molecule in Soy May Reduce Risk of Colon Cancer By Jerilyn Watson Broadcast: Wednesday, June 02, 2004 This is the VOA Special English Health Report. Foods made from soybeans are increa

发表于:2019-01-30 / 阅读(270) / 评论(0) 分类 健康与经济

It could be the perfect excuse for cheating spouses who are caught out: infidelity may be inherited. Both men and women may be more likely to have affairs as a result of the genes passed down by their parents, according to research. 出轨被发现?也

发表于:2019-02-01 / 阅读(234) / 评论(0) 分类 趣味英语

By David McAlary Washington 02 May 2007 U.S. researchers have discovered a gene that promotes longer life in earthworms that eat much less than normal. Humans have similar genes, and VOA's David McAlary reports that, if they work the same way as in t

发表于:2019-02-06 / 阅读(307) / 评论(0) 分类 2007年VOA标准英语(五月)

From VOA Learning English, this is the Health Lifestyle report. Most healthy children between the ages of four and 10 grow about five centimeters a year. Parents often notice this growth by how quickly their children grow out of their clothes and sho

发表于:2019-02-09 / 阅读(240) / 评论(0) 分类 2019年VOA慢速英语(一)月

I want you to imagine two couples 我希望大家设想一下,两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天,相同的时刻 each conceiving a baby -- okay? 每对怀上了

发表于:2019-02-13 / 阅读(248) / 评论(0) 分类 TED演讲教育篇

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(322) / 评论(0) 分类 TED演讲科学篇

So how can a hormone ultimately affect the rate of aging? 那么,激素到底是怎样影响衰老的速度呢? How could that work? 原理是什么呢? Well it turns out that in the daf-2 mutants, 原来在daf-2变异体中 a whole lot of gene

发表于:2019-02-14 / 阅读(360) / 评论(0) 分类 TED演讲科学篇

The Food and Drug Administration on Thursday approved genetically modified salmon, the first such altered animal allowed for human consumption in the United States. 美国食品药品管理局周四批准了转基因三文鱼被人类食用。批准转

发表于:2019-02-17 / 阅读(260) / 评论(0) 分类 阅读空间

Doping scandals marred the runup to the Rio Olympics and other games of the recent past. Now, scientists warn that cheating could rise to a new level using genetic research. 兴奋剂丑闻给里约奥运会和最近的其他比赛蒙上了一层阴影

发表于:2019-02-18 / 阅读(269) / 评论(0) 分类 英语新闻
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