标签：enzyme 相关文章
Higgs Boson Named Top Science Find of 2012 Each year, editors at Science magazine compile a list of the years top achievements in science and technology. For 2012, their top pick was the long-anticipated confirmation of the existence of the so-called
VOA标准英语2012年(十二月)
New Plastic-Eating Substance May Help Fight Against Pollution Scientists in Britain and the United States have designed a substance that eats plastic. They believe that, in the future, it could help reduce pollution. 英国和美国科学家设计出了
2018年VOA慢速英语(四)月
By Nancy Steinbach Broadcast: November 5, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. A new blood test could give doctors a better way to tell if a person is in danger o
VOA2003（下）-环境与健康
Caregivers, Chronically Ill Under More Stress Americans are under considerable stress, according to a new survey by the American Psychological Association. Nearly half of the respondents reported an increase in stress over the last five years. While
VOA标准英语2012年(五月)
Many people assume that women are more greatly affected by alcohol than men because they generally weigh less and have lower rates of drinking. While this is true, researchers have found other ways in which women are more vulnerable to the effects of
双语有声阅读
Dermatan sulphate - a glycosaminoglycan found in skin, tendon, blood vessel and heart valves. Desmosomes -one of the types of cell junctions by which cells join or communicate with each other. Desmoso
医务英语
Planktonic - a form of life style in which an organisms floats freely in a fluid without significant attachment or association with other living forms. Plaque is a film of bacteria in a matrix of sali
医务英语
In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。
TED演讲科学篇
This is the VOA Special English Health Report. Sleeping sickness is a deadly disease that infects about sixty thousand people in Africa each year. Now scientists in Scotland say they may have found a new treatment. Their findings are in the journal S
2010年VOA慢速英语(四)月
The security forces in the Yemeni capital Sanaa have opened fire with machine guns on tens of thousands of anti-government protesters, killing at least 25 people and injuring hundreds more. Witnesses said the police even used anti-aircraft weapons ag
英语听力精选进阶版
Scientists in Scotland say they may have found a new treatment for sleeping sickness, which could be ready for clinical trial within 18 months. The disease is fatal and infects around 60,000 people in Africa annually. Sleeping sickness is spread by a
VOA标准英语2010年(四)月
This week on Why? Tell Me Why! We are answering a viewer question as to why lightning bugs light up. Lightning bugs light up basically to find a mate. Its a way that lightning bugs communicate with each other, to call each other together, because som
自然百科2009年
Carbonation Has a Taste In a study in the journal Science, researchers found that the taste buds for sensing sour also respond to carbonated beverages, because the fizz gets turned into chemical components, one of which is protons--basically simple,
60秒科学
Gene for Disease Has Healthy Flip Side A study in the journal Science finds that the gene for anemia-causing G6PD deficiency also protects against malaria, thereby keeping the gene active in populations. Cynthia Graber reports Sickle cell disease is
60秒科学
SCIENCE IN THE NEWS - Aspirin: One of the Most Widely Used Drugs in the World By George Grow Broadcast: Tuesday, September 13, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special Engli
科技之光
HEALTH REPORT - SARS Virus No Longer Such a Mystery By Cynthia Kirk Broadcast: Wednesday, July 27, 2005 I'm Shep O'Neal with the VOA Special English Health Report. SARS is a viral disease There is pro
健康与经济
This morning on Health Watch, were talking about alcohol actually shrinking the brain. That happens to people who drink a lot, according to the latest research. Doctor Robert Millman is a psychiatrist and a substance abuse expert at New York Presbyte
访谈录
Cells and Temperature Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37 ℃
双语有声阅读
本期内容： The 2018 Nobel Prize in Chemistry has been awarded to three scientists for their discoveries in enzyme research. Americans Frances Arnold and George P Smith will share the prize with Briton Gregory Winter, who is based at Cambridge Un
夏说英语新闻晨读
Idiom: Seal of approval ( approval ) Hit the book: Detoxify Chronic Fatigue Puffy Bloating Obstacle Deterrent Enzyme Inevitable How do you know if you need to detoxify? Bennett suggests that everyone should detox at least once a year. However, Bennet
趣味青春英语