用来控制有害树种的昆虫

44 用来控制有害树种的昆虫 DATE=6-1-01 TITLE=ENVIRONMENT REPORT - Insects to Control Harmful Trees BYLINE=George Grow (Start at 1'01

NPR 2010-04-20

Transportation authorities in Europe are opening up more airspace to commercial airline flights despite some ongoing concern about the cloud of volcanic ash that has been lingering over the continent for days. The flights will be restricted to so-cal

SSS 2008-11-28

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. If you paid attention during high school biology, you probably remember that girls are born with all the eggs theyll ever have, whereas guys are churning

科学美国人60秒 SSS High Fiber Diet Keeps Intestinal Walls Intact

Your nose may be the first place you think of as a source of mucus. But mucus is a major player in your gut, too. There's antimicrobial peptides and proteins that are present in there. Bacteria live in there and forage on the carbohydrates. And it's

艾滋治疗新突破! 猴艾滋得到长期控制!

Dr. Anthony Fauci doesn't get too excited about the results of animal studies, and he doesn't make house calls. 对于动物研究的结果，安东尼弗契博士并不是那么激动，他也从不上门亲访。 But when a drug already taken by th

TED演讲:论生物多样性(2)

In so doing, I reached a frontier of biology so strange, so rich, 通过这样的方式，我来到一个非常古怪却又非常丰富的生物学领域， that it seemed as though it exists on another planet. 简直就像降临到别的星球一样。

SSS 2008-02-05

This is Scientific Americans' 60-Second Science. Im Cynthia Graber. Thisll just take a minute. When is an ant like a piece of fruit? When its infected by a parasite. Researchers affiliated with the Smithsonian Tropical Research Institute discovered t

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阿米巴［性］肝脓肿, amebic liver abscess Ehlers-Danlos综合征, Ehlers-Danlos syndrome 嗳气, belch 凹陷性病变, excavated lesion, depressed lesion Oddi括约肌成形术, plastic repair of Oddi sphincter Oddi括约肌切开

母乳喂养让儿童更聪明

A new study provides some of the best evidence to date that breast-feeding can make children smarter, an international team of researchers said on Monday. Children whose mothers breast-fed them longer and did not mix in baby formula scored higher on

VOA慢速英语2011--Gut Bacteria: We Are What We Eat

HealthReport-GutBacteria:WeAreWhatWeEat This is the VOA Special English Health Report. The human digestive system is full of bacteria -- mostly good bacteria. These organisms help break down food so the body can use the nutrients. Scientists are expl

VOA标准英语2012--Cocoa Foundation Selects Researchers for US Study

Cocoa Foundation Selects Researchers for US Study The scientists are from Costa Rica, Ghana, Vietnam, the Philippines and three from Cote dIvoire, the worlds largest producer of cocoa beans. While in the United States, theyll work with a mentor at re

VOA慢速英语20060116a

DEVELOPMENT REPORT - Studies Say New Rotavirus Vaccines Are Safe and EffectiveBy Jill Moss Broadcast: Monday, January 16, 2006 I'm Steve Ember with the VOA Special English Development Report. Studies

TED演讲:麸质有什么大不了的(2)

Celiac disease is an inherited disease, 乳糜泻是遗传性疾病， in which eating foods with gluten leads to inflammation and damage of the lining of the small intestine. 患者在进食麩质食物时，会出现发炎，并损害小肠绒毛。

TED演讲:我们为什么要排气(3)

At the same time, methanogens can use hydrogen and carbon dioxide produced by other bacteria to generate methane, 同时，产甲烷菌可以使用其他细菌产出的氢和二氧化碳以生成甲烷， which can reduce the total volume of gas by u

VOA慢速英语20060306a

DEVELOPMENT REPORT - How Do Vaccines Reach the Developing World?By Jill Moss Broadcast: Monday, March 06, 2006 I'm Steve Ember with the VOA Special English Development Report. Guatamalan baby infected

天然止痛食物

Chronic pain can be a debilitating condition. It can consume a person, leaving him or her incapacitated and unable to perform basic daily tasks. Prescriptions for pain medication have climbed 300 percent in the past decade. This has led to increased

WHO Warns Against Self-Medication as Antidote to Radiation

The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi

Five E. coli cases identified in the Netherlands

THE HAGUE, June 1(Xinhua) -- Five people in the Netherlands have been sickened with an unusual strain of the E. coli bacteria, the institute for public health (RIVM) reported Wednesday. Of the five patients, four also suffered from intestinal problem

E. coli outbreak in Denmark under control

COPENHAGEN, June 7 (Xinhua) -- The outbreak of infections caused by E. coli bacteria may be over in Denmark as no new cases have been reported here since Friday. According to Denmark's National Serum Institute (NSI), there are 18 confirmed cases of s

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你认为最好的遗产是什么呢？是金钱还是房产？看了本文你就会这个问题有进一步的理解。As a young man, Al was a skilled artist, a potter. He had a wife and two fine sons. One night, his oldest son developed a severe s