Search results for theory

Avatar Posted by Jason 518 days ago (http://news.bbc.co.uk)
Category: Health and Medical Care | Tags: hiv health theory
A longstanding theory of how HIV slowly depletes the body's capacity to fight infection is wrong, scientists say. read more »
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Avatar Posted by power 475 days ago (http://www.voanews.com)
Category: Science Discovery Environment | Tags: scientists develop theory toddlers learn
There's a period in the development of toddlers when they seem to learn a new word every day. There are different theories about why young children read more »
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