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223,170 articles from PhysOrg

Genes linked to suicidal thinking during antidepressant treatment

Specific variations in two genes are linked to suicidal thinking that sometimes occurs in people taking the most commonly prescribed class of antidepressants, according to a large study led by scientists at the National Institutes of Health`s (NIH) National Institute of Mental Health (NIMH). Depending on the particular mix inherited, these versions increased the likelihood of such thoughts from 2-...

Giardia genome unlocked

Giardia lamblia, one of the most common human parasites in the United States, causes more than 20,000 intestinal infections a year, often through contact with contaminated drinking or swimming water. In the September 28 issue of Science, an international team led by researchers at the MBL (Marine Biological Laboratory) describe the complete genome (genetic sequence) of Giardia, which could lead to...

Hair Untangles Woolly Mammoth Puzzle

Stephan C. Schuster and Webb Miller of Penn State University, working with Thomas Gilbert from Copenhagen and a large international consortium, discovered that hair shafts provide an ideal source of ancient DNA -- a better source than bones and muscle for studying the genome sequences of extinct animals. Their research achievement, described in a paper to be published in the journal Science on 28...

New national study links asthma to allergies

Researchers at the National Institutes of Health (NIH) have found that more than 50 percent of the current asthma cases in the country can be attributed to allergies, with approximately 30 percent of those cases attributed to cat allergy.

Rating might be unlikely to affect teens exposure to smoking in movies

Several recent research studies published in the United States have determined that young adolescents who see smoking scenes in movies are more likely to smoke. To combat smoking among youth, public health groups have called for Restricted (R) ratings for movies that depict smoking. A new study from New Zealand, however, calls that strategy into question, noting that the R rating may not have...

Rice Urges Nations to Find Cleaner Fuels

(AP) -- Secretary of State Condoleezza Rice challenged the world's biggest polluters Thursday to find ways to shift toward energy sources that reduce global warming, without harming their economies.

Subdued Virtual World for Japan

(AP) -- Orderly, pornography-free and safe for children, "meet-me," an online interactive virtual Tokyo, is Japan's answer to "Second Life." Or so its creators hope.

Woman Delivers 17-Pound Baby

(AP) -- A small Russian city just got a really big addition: a 17-pound, 1 ounce baby whose mother had already delivered 11 other children.

Dell Moves Up Carbon Timeline

(AP) -- Dell Inc. unveiled an environmental plan Wednesday that the computer maker said will make its operations carbon-neutral by 2008, a year earlier than it previously promised.

Microsoft Touts New 'Media Extenders'

(AP) -- Microsoft Corp. and its hardware partners are trying to bridge the divide between home computers and TV sets this holiday season with the release of several "media extenders."

Senate to Hike Health Care Reimbursement

(AP) -- The Senate has voted to allow the Pentagon to raise reimbursement rates for mental health treatment, following reports that soldiers returning from war have had difficulty getting services because of reduced payments to therapists.

Court Affirms Part of Vonage Ruling

(AP) -- For the second time in two days, Internet phone company Vonage Holdings Corp. was hit with bad legal news Wednesday when a federal appeals court upheld a jury verdict and injunction against it for patent infringement.