Uncategorized
- Humans
Stem Cell Controversy: Scientist is retracting landmark finding
A South Korean researcher who claimed to have cloned the first human embryonic stem cell is now asking that some of his published work be retracted.
- Chemistry
Mixed Message: Pheromone blend sends signal
The meaning of a chemical message released by male Asian elephants depends on the chemical's total concentration as well as on the balance of the chemical's two forms.
- Animals
Ant Iron Chefs: Larvae fix dinner but don’t sneak snacks
Movies of an ant colony show that larvae are the ones that prepare dinner when meat is on the menu. With Video.
- Tech
Narrow Escape: Sharp nanogutters hustle out wetness
Nanochannels with sharply tapered edges can dramatically boost fluid flow rates and potentially play a role in improved microchip cooling, fabrics to wick away perspiration, and other uses.
- Health & Medicine
Mixing Vessel: Air pollution helps cholesterol clog arteries
When paired with a diet high in fat, breathing polluted air on a regular basis accelerates the accumulation of dangerous plaques in arteries.
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Pumping Out Hope: Stem cells secrete brain-preserving protein
Researchers have turned stem cells into living drug pumps that could eventually treat Parkinson's disease.
- Paleontology
Mammoth Findings: Asian elephant is closest living kin
DNA studies suggest that the woolly mammoth is more closely related to the Asian elephant than to the African elephant.
- Humans
Science News of the Year 2005
A review of important scientific achievements reported in Science News during the year 2005.
- Humans
Letters from the December 24 & 31, 2005, issue of Science News
Bends, the truth I very much enjoyed “Cool Birds” (SN: 10/22/05, p. 266). What struck me, however, was a passage that mentioned the “bird’s resistance to the bends” and the researchers’ alleged inability to explain that. As a scuba diver, I know that the bends, or decompression sickness, is caused by breathing compressed air underwater. […]
- Earth
Satellite makes finest map yet of Antarctica
Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.
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Counting on technology to count elephants
Researchers now spend large amounts of time in remote areas to count and monitor the movements of large animals such as elephants, but in the future they may use seismic instruments to do the job.
- Earth
Where steel-belted radials go to die
A new technique for analyzing satellite images may enable researchers to easily identify sites where large numbers of used tires have been dumped.
