标签：cell 相关文章
Faiza Elmasry | Washington, DC 29 March 2010 Cell biologist Elaine Fuchs is known for revolutionizing the study of skin and for her support of women in science. Children, Elaine Fuchs says, have a natural fascination with science. She remembers that
VOA标准英语2010年(三月)
This Cell Phone Needs No Battery 不用电池的新型手机？ A dying battery is a huge annoyance for cell phone users. But for engineers? It's inspiration. Can we design a smartphone which can make a phone call and have a conversation without the
2017年科学美国人(七)月
02An Annoying Cell Phone User GLOSSARY over above another sound; with a noise that is loud enough for one to hear even though there is another noise at the same time* We couldnt hear the movie over the people who were talking next to us in the theate
2008年ESL之日常生活
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of
Scientific American(八)月
By Claudia Blume Hong Kong 05 January 2006 Scientists in Australia have discovered a stem cell that is expected to provide clues about how breast cancer develops, and how cancer cells evade current th
2006年VOA标准英语（一月）
By Michael Bowman Washington 07 June 2007 Scientists in the United States say they have for the first time been able to create stem cells from the ordinary skin cells of mice, a breakthrough that could lead to new medical breakthroughs and eliminate
2007年VOA标准英语（六月）
By Deborah Tate Washington 19 July 2006 watch Bush Stem Cell report The U.S. Senate has approved and sent to President Bush a bill that would allow federal funding of embryonic stem cell research. The president opposes the measure on moral grounds,
2006年VOA标准英语（七月）
By Jim Malone Washington 17 August 2006 The ethical and moral debate over expanding embryonic stem cell research could motivate voters on both sides of the issue in this year's U.S. congressional elections. Color-enhanced stemcell from bonemarrow Em
2006年VOA标准英语（八月）
By Melinda Smith Washington 27 June 2007 President Bush speaking at the White House about stem cell research, 20 Jun 2007 Some U.S. scientists say President Bush's veto last week of federal funding for stem cell research raises questions about the f
2007年VOA标准英语（六月）
Stem Cell Therapy Effective Against HIV Virus in Mice The actual stem cells were injected in my arm, said Diana Souza. Diana Souza says stem cell therapy helped restore full use of her severely fractured arm. It is a miracle. It does work. And I have
VOA标准英语2012年(五月)
Push to Ban Cell Phone Use While Driving Builds In an unprecedented move, the National Transportation Safety Board in the U.S. is recommending that motorists turn off all cell phones while driving. The board, charged with determining the cause of tra
VOA标准英语2011年(十二月)
Medical experts in Miami are hoping to speed up research using embryonic stem cells. Their work may lead to advances in treatment for spinal cord injuries, Alzheimer's disease and other illnesses. President Barack Obama signs an Executive Order on s
VOA标准英语2009年(三月)
Stem Cell Treatment Boosts Heart Function A stem cell treatment for patients with heart failure significantly improved their heart function in a small but promising new study. In heart failure, the heart loses its ability to efficiently pump blood. I
VOA标准英语2011年(十一月)
Network-Sharing System Improves Internet, Cell Phone Connections During major emergencies, like the Boston Marathon bombing in 2010, cell phone and Wi-Fi networks quickly get overloaded. A group of scientists at the Stevens Institute of Technology in
VOA标准英语2014年(十月)
SCOTT SIMON, HOST: Nearly a third of African-Americans report experiencing discrimination when they've been to the doctor. It's according to a poll from NPR, the Robert Wood Johnson Foundation and the Harvard T.H. Chan School of Public Health. Perhap
2017年NPR美国国家公共电台11月
For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after year
自然百科2008年
a. The people are talking to each other b. The people are using their cell phones c. The people are sleeping d. The people are reading books
初学者英语听力
By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced
VOA常速英语2007年（十一月）
Carl: Im sorry, say that again. I couldnt hear you over that guy at the next table shouting into his cell phone. Stephanie: That guy is so rude. Were trying to have a leisurely conversation over a cup of coffee, and we have to out shout some inconsid
地道美语播客
From today it is illegal to hold your cell phone and talk or text while driving. If you need to use a phone in the car, you must pull over to the side of the road and stop. You may instead use a hand-less phone which works when it hears your voice. T
新西兰英语