5,002 results
- Health & Medicine
Diet Pills: It’s Still Buyer Beware
With some half of the adult U.S. population overweight–many individuals severely so–is it any wonder that the fastest growing segment of the dietary supplement industry is weight-loss aids? Since 1997, sales of diet pills and related supplements have been increasing 10 to 20 percent annually to the point where last year they reached $2 billion. […]
- Earth
Crisis on Tap?
Because people are becoming ever more dependent on underground aquifers as sources of water, scientists are striving to understand better how groundwater systems interact with the water that flows across Earth's surface.
- Materials Science
Mammal cells make fake spider silk better
Using long and abundant water-soluble proteins secreted by bioengineered mammal cells, scientists have spun the first artificial spider silk demonstrated to have some of the remarkable mechanical properties of the real thing.
- Math
Logic in the Blocks
Sliding-block puzzles can be surprisingly difficult to solve and can even serve as theoretical models of computation.
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18966
One cannot be around cats long without observing that they have intelligence and personalities nearly as complex and diverse as people do. They communicate with each other and people, both verbally and with body language. They have preferences for whom they associate with, both human and feline, and those can change. I think that complexity […]
- Health & Medicine
NO News
Preliminary research suggests that inhaled nitric oxide may offer a much-needed treatment for patients suffering from complications of sickle cell disease.
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Female chimps don’t stray in mate search
Genetic testing of chimpanzees living in western Africa indicates that females usually seek mates within their home communities, a finding that contradicts some previous reports.
- Earth
Liquid Assets
Research provides guidance on how best to bank water during times of plenty for use during subsequent droughts
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Return of a Castaway
Wood-eating shipworms have been forging a costly comeback in some U.S. harbors in recent years, yet researchers say that these mislabeled animals (they're clams, not worms) are a scientific treasure.
- Astronomy
Asteroid studies reveal new puzzles
Belying the image of an asteroid as a bare rock, a detailed study of the asteroid 433 Eros reveals that many of its crater floors and depressions are coated with fine dust and nearly half of the largest rocks strewn across the asteroid's surface represent material blasted from a single crater.
- Anthropology
Searching for the Tree of Babel
Researchers are using new methods of comparing languages to reveal information about the ancestry of different cultural groups and answer questions about human history.
- Physics
Double or Nothing
The hunt for a rare, hypothetical nuclear transformation known as neutrinoless double-beta decay may answer one of the most urgent questions in physics today: How much do elementary particles called neutrinos weigh?
