Archive: 25/09/2008

Zeroing in on Wi-Fi 'dead zones'

Rooting out Wi-Fi "dead zones" in large wireless networks that cover whole neighborhoods or cities is an expensive proposition. Pre-deployment testing is so costly that most WiFi providers simply build their networks first ...

dateSep 25, 2008 in Engineering
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Scientists identify novel inhibitor of human microRNA

Scientists at The Wistar Institute and their colleagues have identified, for the first time, a molecule that can regulate microRNAs – short strands of RNA that play a vital role in gene expression and are closely associated ...

dateSep 25, 2008 in
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Detecting human activities through barriers

University of Texas professor Hao Ling and Ph.D. candidate, Shobha Ram, are one step closer to making x-ray vision a reality. They are perfecting radar systems that can detect human activities through barriers and convert ...

dateSep 25, 2008 in Engineering
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The wild, hidden cousin of SN 1987A supernova

The supernova, called SN 1996cr, was first singled out in 2001 by Franz Bauer. Bauer noticed a bright, variable source in the Circinus spiral galaxy, using NASA's Chandra X-ray Observatory. Although the source displayed some ...

dateSep 25, 2008 in Astronomy
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Galloping and breathing at high speed

The coordination of two systems are key for any horse to walk, trot, gallop or win a race. The first are the lower limbs, which allow the animal to move along on a "spring-like" tendon. The second is a complicated respiratory ...

dateSep 25, 2008 in
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