Science News Magazine:Vol. 168 No. #18
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More Stories from the October 29, 2005 issue
Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound.
Some plesiosaurs went for clams
The fossils of plesiosaurs recently unearthed in Australia suggest that the long-necked, aquatic reptiles had a more varied diet than scientists had previously suspected.By Sid Perkins
Nanobots walk ‘n’ roll
A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces.
’10th planet’ has a partner
The so-called 10th planet, an object larger than Pluto that ranks as the most distant body known in the solar system, has a moon.By Ron Cowen
Shoreline for Titan?
New radar images of Saturn's smog-shrouded moon Titan show evidence of a shoreline cutting across the moon's southern hemisphere.By Ron Cowen
Health & Medicine
Single drug dose may be better against cholera
A single dose of the antibiotic ciprofloxacin cures cholera in children as often as a 12-dose regimen of erythromycin does.By Nathan Seppa
Health & Medicine
Defense Mechanism: Circumcision averts some HIV infections
Men who get circumcised reduce their risk of acquiring the AIDS virus by more than half.By Nathan Seppa
Caribbean Extinctions: Climate change probably wasn’t the culprit
Remains of extinct sloths unearthed in Cuba and Haiti indicate that the creatures persisted in Caribbean enclaves until about 4,200 years ago, a finding that almost absolves climate change following the last ice age as a cause for the die-offs.By Sid Perkins
Breaking Waves: Mangroves shielded parts of coast from tsunami
Along a strip of India's southeastern coastline, trees protected certain villages from last December's tsunami, while waves wiped out neighboring settlements that weren't sheltered by vegetation.By Ben Harder
Muck Tech: Natural enzyme displaces precious metal in fuel cell
A prototype fuel cell uses an enzyme from a soil microbe to generate electricity from hydrogen rather than from rare and expensive metal catalysts such as platinum.
SNPs Ahoy! Scientists complete map of genetic differences
A new map that delineates small genetic differences among people may be a powerful tool for figuring out why some individuals get certain diseases and how to customize their treatments.
Left Out by a Stroke: Right-brain injury may upset attention balance
People who suddenly ignore everything to their left after suffering a right-brain stroke display disturbed activity in uninjured parts of a widespread neural network associated with attention.By Bruce Bower
Read My Gestures: Body language can trump facial expressions
Body language can influence the perception of emotion on a person's face.By Katie Greene
Making a Little Progress
Scientists are using nanotechnology to develop new strategies for diagnosing and treating cancer.
Ghost Town Busters
Facing the threat of a radioactive mess from a dirty bomb, government and industry labs are creating novel cleaning agents and fixatives to aid rescue operations and speed restoration of contaminated zones.
Letters from the October 29, 2005, issue of Science News
Food for thought I note that pleasure activates the neurobiological response that fuels addictive behavior (“Food Fix: Neurobiology highlights similarities between obesity and drug addiction,” SN: 9/3/05, p. 155). It has long been a tenet of the 12-step programs that there is no pleasure greater than to use one’s talents to help others similarly afflicted. […]By Science News