Science News Magazine:Vol. 171 No. #4
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More Stories from the January 27, 2007 issue
Trichomoniasis-causing organism is sequenced
Scientists have taken a first read of the genetic sequence of the organism responsible for a sexually transmitted infection called trichomoniasis.
Aging vets take stress disorder to heart
Veterans grappling for decades with post-traumatic stress disorder have a greater risk of developing and dying from heart disease than do their peers who don't suffer from the stress ailment.By Bruce Bower
Heating releases cookware chemicals
Nonstick coatings on fry pans and microwave-popcorn bags can, when heated, release traces of potentially toxic perfluorinated chemicals.By Janet Raloff
Tracking nanotubes in mice
Carbon nanotubes can target tumors in mice.
Solving a 400-year-old supernova riddle
Astronomers have determined that Kepler's supernova, the last stellar explosion witnessed in our galaxy, belongs to the class known as type 1a.
Astronomers discover smallest galaxy ever
Astronomers have found the smallest galaxy yet recorded, about one-sixteenth the diameter of the Milky Way.
Stellar death may spawn solar system
Material shed by a dying star might give birth to planets.
Addiction Subtraction: Brain damage curbs cigarette urge
Scientists have identified an area of the brain where damage seems to quickly halt a person's desire to smoke.
Making a 3-D Microscope: Technique brings entire sample into focus
A new imaging technique creates microscopic three-dimensional views of tissues within a patient's body and can update those images several times a second.
Mind over Muscle: Placebo boosts health benefits of exercise
The physical rewards of exercise derive not just from muscular exertion but also from a person's mind-set about exercise.By Bruce Bower
Health & Medicine
Salve for the Lungs: Aspirin might prevent asthma
Regular use of aspirin may prevent healthy adults from developing asthma.By Ben Harder
Flaunting a majestic tail over southern skies, Comet McNaught became in mid-January the brightest comet in more than 40 years.
Ancient Glider: Dinosaur took to the air in biplane style
About 125 million years before the Wright Brothers took to the air with their biplane, a 1-meter-long dinosaur may have been swooping from tree to tree using the same arrangement of wings.By Sid Perkins
Health & Medicine
Good Poison? Carbon monoxide may stifle multiple sclerosis
A study in mice suggests that small amounts of carbon monoxide might alleviate symptoms of multiple sclerosis.By Nathan Seppa
Secret Agent: Hidden helper lets fungus save plants from heat
A fungus that supposedly lets plants live in overheated soil turns out to work only if it's infected with a certain virus.By Susan Milius
Perchance to Hibernate
As scientists work to unravel the secrets of mammalian hibernation, they're eyeing medical applications that could aid wounded soldiers, stroke victims, and transplant recipients, among others.By Ben Harder
Many common pollutants appear to be jeopardizing the survival of fish and other aquatic species by blunting their sense of smell.By Janet Raloff
Letters from the January 27, 2007, issue of Science News
Circumcision circumspection Concerning “More Evidence of Protection: Circumcision reduces STD risk in men” (SN: 11/18/06, p. 325), I have yet to read a single study regarding the alleged benefits of circumcision that acknowledges that the foreskin is erogenous tissue. Removal of erogenous tissue from a female would be considered barbaric, even if it did offer […]By Science News