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By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

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Bald made a comeback years ago. Some men even shaving their heads before hair departed on its own, but many others say they would give anything to regrow their loss. Now doctors say a big breakthrough could make that possible. This is definitely a st

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1. genre /ʒɑ:r/ -- kind; sort; category Allan Poe was the originator of a genre of detective story. 爱伦坡是一类侦探小说的创始者。 2. progenitor /prəʊˈdʒenɪtə/ -- ancestor to whom a gruop traces its birth; forefather The Bible

国家地理-2008-05-24 Fuel Cell 聚焦燃料电池

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 yea

The Lost Continent 遗失的大陆-14

In 1888, Blavatsky wrote a book called the Secret Doctrine, in which she attempted to establish the principles of Theosophy or God Wisdom that the cosmic masters had impart ed to her. Blavatsky cited

SSS 2009-10-15

One of the goals of regenerative medicine is to make tissue to replace our own damaged body parts. Thats still a ways off. But starting with mouse embryonic stem cells, researchers have succeeded in creating heart muscle that actually beats. The stud

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-If you look carefully, you can see there are stone artifacts. This black marterial here is a burnt material. So that's an ancient fireplace.-So that would have been for cooking. -For cooking the shellfish and so on. We find animal bones, etc, in her

英语听力：自然百科 徒步南非之花园大道 The Garden Route—7

Bloody hell, so the fynboses becomes finely manicured grass, about the nature, Id like to introduce you to the leisure industry. Pinnacle point is perhaps the most ambitious development on the stretch of the garden route. Up to 850 properties are pla

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Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

VOA常速英语2007-Conference Says Stem Cell Research is Robust

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

VOA常速英语2008年-FCC Approves Cell Phone Alert System

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

U.S. FDA approves first cord blood product

WASHINGTON, Nov. 11 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Friday approved HEMACORD, the first licensed hematopoietic progenitor cells-cord cell therapy. HEMACORD is indicated for use in hematopoietic stem cell transplantation pro

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

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DURING its rise in the 17th century, Amsterdam was animportant haven for religious dissidents. It was also the publishing centre forthe racyphilosophical tracts that were too hot to be printed in France or England. The citys economicfortunes were bor

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Scientists find neural stem cell regulator

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour

U.S. researchers discover human lung stem cell

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