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 2008-02-20

This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any

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Horizon - Life On Mars 火星生命 - 9

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

Alien Neighbors 寻访外星人 9

He wears gloves and cleans his tools with alcohol to avoid contaminating the ancient salt samples with modern microorganisms.

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

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Melting Arctic Could be Major Source of Greenhouse Gases The melting arctic permafrost could release methane-producing microbes with the potential to accelerate climate change, according to a new study published in Nature. Lead author Janet Jansson,

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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

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Lesson Fourteen 听力部分 Dictation: Please prepare your paper and pen. We keep ____ in the _________ to ______ its _______ and ___________. ________________ keep _________ and inhibit the _____ of most ______. However, ____ spoilage microorganism

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

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About 1500 years ago Chinese settled there, but the Dutch imperialist invaded there in the 17th century. After that, in 1662 Zheng Chenggong, a hero of nation,drove them out. Since 1683 the island was ruled by Qing Dynasty nearly two centuries. Unfor

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藻类Algae 两栖动物Amphibians 动物习性Animalbehaviour 动物资源Animalresources 节肢动物Arthropods 生物多样性Biologicaldiversity 生物资源Biologicalresources 生物圈保护区Bi

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

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15.If during this period Lorraine and Mark, not neces- sarily in that order, are stationed at immediately adjacent windows, which of the following can be stationed at window 1 during this period? (A) J

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