Twitter users given legal warning in Britain

The Internet is not a law-free zone, the British government's top law officer warned Twitter users, adding that he would not hesitate to take action over offending posts.

Air quality improving in many U.S. cities: report

(HealthDay) -- Air quality in America's most polluted cities has improved significantly over the past decade, according to a new report from the American Lung Association.

Fears for safety at Fukushima one year on

To some of the men who earn as little as $100 a day to work inside Japan's Fukushima Daiichi, the plant at the centre of a year-old nuclear disaster is far from safe -- despite the official line.

Need muscle for a tough spot? Turn to fat stem cells

(PhysOrg.com) -- Stem cells derived from fat have a surprising trick up their sleeves: Encouraged to develop on a stiff surface, they undergo a remarkable transformation toward becoming mature muscle cells. The new research ...

Vatican, biotech firm host adult stem cell meeting

(AP) -- The Vatican has entered into an unusual partnership with a small U.S. biotech company to promote using adult stem cells for treating disease, rather than focusing research on embryonic stem cells.

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