单词：quasi-experimental research
单词：quasi-experimental research 相关文章
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
数学英语
By Nancy Steinbach Broadcast: September 24, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. For many years, researchers have been studying ways to extend life and to improve
VOA2003（下）-环境与健康
Welcome back to Business Skills 360 the podcast that looks at the other side of Business English. This is the third part in our 360 series on your first job interview, and were going to be looking at the topic of research. And by that I mean the rese
商务英语求职面试培训
Little Brains Big Research By Paula Bock / 2005, The Seattle Times , Knight Ridder Newspapers. Distributed by Tribune Media Services International. Research reveals more of what happens inside an infa
彭蒙惠英语
Research is a very important thing. Without research, wed have no new products. Our food would be more dangerous to eat. And wed never go to the moon. Id like to see my government spend a lot more money on research. Especially on research into diseas
听一分钟英文-R
By Kent Klein Washington 26 March 2008 AIDS researchers are discussing where to go next, after a potential vaccine failed in two human trials several months ago. As VOA's Kent Klein reports, numerous approaches were considered at the Summit on HIV Va
VOA标准英语2008年（三月）
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
Scientific American(十)月
SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I
科技之光
Psychologists have known for decades that unpleasant childhood experiences can affect a person's mental health for a lifetime. But new research suggests childhood traumas might also have long term effects on physical health. Dunedin study began in th
VOA标准英语2009年(十二月)
New Alzheimer's Research Raise Hope for Treatment, Cure Scientists working to unravel the mysteries of Alzheimer's disease are excited by two recent studies. Both provide important new insights on how the disease spreads through the brain. Guy Eakin
VOA标准英语2012年(二月)
Five Patients Given Experimental Ebola Drug Said To Be Improving Without specific drugs or a vaccine for Ebola, the only thing doctors can do for those suffering from this disease is treat their symptoms and hope their bodies can fight the virus. Ebo
VOA标准英语2014年(八月)
Wang Yifang, from the Institute of High Energy Physics of the Chinese Academy of Sciences, attended the award ceremony of the 2016 Breakthrough Prize in Fundamental Physics at the NASA Ames Research Centre. He is the director of the team behind China
2015CRI中国国际广播电台
Im all for stem cell research. I know it is a huge issue at the moment. Lots of people dont like it. They say it is unethical and that it is playing God. Other people say we will create Frankensteins monster. Britain seems to be leading the world in
听一分钟英文-S
今天我们要学的词是experimental. Experimental 试验阶段的。The House of Representatives rejected a Republican bill that would give terminally ill patients the ability to try experimental drugs. 美国国会众议院否决了一项议案，
英语单词荟萃
24 关于阿尔茨海默病的研究 DATE=3-20-01 TITLE=SCIENCE IN THE NEWS #2116 - Alzheimer's Research BYLINE=Jerilyn Watson VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Sc
科技之光
男性干家务常被女性忽视 Men do far more housework than they are given credit for， according to research that claims women do not notice because their male partners don't make a fuss。 Men said they spent 13 hours a week on household chor
阅读空间
By Zulima Palacio Washington 08 May 2008 Although the government and researchers halted most clinical trials for an AIDS vaccine, a research institute in Baltimore continues its work on the most deadly virus of our times. Vaccine trials were stopped
VOA标准英语2008年（五月）
By Carol Pearson Washington 13 September 2007 American professional football player Kevin Everett fractured his neck during a game, 9 September 2007. He remains sedated and in intensive care. It is too early to tell if Everett will recover fully. Th
2007年VOA标准英语（九月）
I never take credit for God's healing in people. - PastorDaniel Negroni Nearly a year ago, Daniel Rocha, a television producer in the Washington area, received a death sentence. He had an aggressive form of pancreatic cancer that was spreading rapidl
VOA标准英语2010年(一月)
PARIS, Aug. 19 (Xinhua) -- Marine scientists and representatives from the private sector and military establishments would meet at UNESCO at the end of this month to measure noise's impact on marine life, the Paris-based UN scientific branch UNESCO s
英语新闻