Archive: 27/01/2009

New Limits on the Origin of Dark Matter

(PhysOrg.com) -- Determining the identity of dark matter, the mysterious stuff thought to make up the vast majority of matter in the universe, is one of the most fundamental challenges facing modern physics. Through theory ...

dateJan 27, 2009 in General Physics feature
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The secretive immune system of the salmon

During his doctoral thesis, Erlend Haugarvoll discovered new aspects of the salmon immune system. His research looked at the immune cells in the gills of salmon and at immune responses to vaccination. A special type of tissue, ...

dateJan 27, 2009 in
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Researchers iron out new role for serotonin

Vanderbilt University Medical Center investigators have found a surprising link between brain iron levels and serotonin, a neurotransmitter involved in neuropsychiatric conditions ranging from autism to major depression.

dateJan 27, 2009 in Medical research
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Exercise no danger for joints

There is no good evidence supporting a harmful effect of exercise on joints in the setting of normal joints and regular exercise, according to a review of studies published in this month's issue of the Journal of Anatomy.

dateJan 27, 2009 in Health
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Ethical evaluations of nanotechnology

Recent action in Congress to reauthorize the U.S. federal nanotechnology research program offers the chance to address the social and ethical issues concerning the emerging scientific field, experts say.

dateJan 27, 2009 in Bio & Medicine
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