Uncategorized
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AstronomyA new receiver for alien broadcasts
A $12.5 million grant will help build the world's largest telescope designed to search for radio broadcasts from alien civilizations.
By Ron Cowen -
Traumas trip up inner-city girls
Inner-city teenage girls may often experience a severe stress reaction that makes it more difficult for them to succeed in school.
By Bruce Bower -
Show me the data
A debate has broken out over whether neuroscientists should share the voluminous data that they generate in their experiments.
By Bruce Bower -
EarthCooking up a key chemical of life
Researchers have simulated the conditions and ingredients found at hydrothermal vents to create pyruvic acid, an organic chemical vital for cellular metabolism.
By Sid Perkins -
EarthGreenland ice variation appears normal
Changes in snowfall observed in parts of southern Greenland between 1978 and 1988 appear to be normal if gauged against the variations recorded in ice cores over the past 400 years.
By Sid Perkins -
EarthNew Concerns about Phthalates
Boys may face an eventual reproductive risk from exposure to some of the ingredients that go into many common plastics, cosmetics, and medical supplies.
By Janet Raloff -
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Brain-Cell Loss Found in Narcolepsy
The puzzling sleep disorder known as narcolepsy stems from the destruction of a small group of brain cells.
By John Travis -
NIH OKs work on stem cells
The U.S. government opened the door for U.S. scientists to receive federal funding for research on stem cells from human embryos.
By John Travis -
ChemistryAdditive gives improved mileage, less smog
A new fuel additive, polyisobutylene, decreases automobile emissions by 70 percent while increasing power and mileage.
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Gene find could yield decaffeinated plants
The first published report of cloning a gene for caffeine synthesis raises the possibility of creating decaf plants.
By Susan Milius -
AstronomyNeutron stars twist Einstein’s theory
Astronomers may finally have found evidence of a key prediction of Einstein's general theory of relativity—that a spinning object drags space-time along with it.
By Ron Cowen