Uncategorized
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Dementia warning
A long-term study of people ages 65 and older in England and Wales indicates that the prevalence of brain disorders of memory and thinking, including Alzheimer's disease, increases sharply in aging populations.
- Health & Medicine
Curry may counter cognitive decline
A chemical found in turmeric may prevent cognitive impairment.
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19754
The idea of Pleistocene rewilding in North America is provocative, but it need not be treated only in the abstract. The return of beavers (Castor canadensis) to almost every region of the continent has shown us that the behavior of these creatures was, in many ways, originally responsible for the contours of the landscape and […]
- Ecosystems
Brave Old World
If one group of conservation biologists has its way, lions, cheetahs, elephants, and other animals that went extinct in the western United States up to 13,000 years ago might be coming home.
- Humans
Letters from the November 11, 2006, issue of Science News
The Carolinas to New Jersey “Bad-News Beauties: Poison-spined fish from Asia have invaded U.S. waters” (SN: 9/9/06, p. 168) cites evidence of a severe genetic bottleneck, suggesting that perhaps no more than three pregnant females launched the expanding western Atlantic red lionfish population. How can there be “pregnant females” in an animal with the external […]
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19753
This article reminds me that in preantibiotic days, tuberculosis patients were put on a fresh-air-and-sunshine regimen. Could the vitamin D so acquired account for the cures this system sometimes produced? Nancy AxfordSacramento, Calif. Researcher John J. Cannell points to TB sanitariums as anecdotal evidence that sunlight fights infections. —J. Raloff Does the vitamin D in […]
- Health & Medicine
The Antibiotic Vitamin
Because vitamin D turns on a major germ killer in the body, a deficiency in the nutrient may leave people especially vulnerable to infections.
- Humans
From the October 31, 1936, issue
Ancient Egyptian tombstones, political party preferences, and a new record for starvation.
- Humans
Thinking Math and Science
This site describes itself as the online community for academically talented youth. Developed by the Johns Hopkins University Center for Talented Youth, it provides timely news articles about scientific advances, profiles of researchers, information on summer programs and academic competitions, book reviews, and even a humor section, with items gathered from a wide variety of […]
- Health & Medicine
Abated Breath: Serotonin problems may contribute to SIDS
Babies who die of sudden infant death syndrome show abnormalities in the regulation of the chemical serotonin in their brains.
- Astronomy
Rejuvenating Observatory: Green light given for space telescope repairs
NASA this week gave the go-ahead for a shuttle crew to refurbish the Hubble Space Telescope and to install new detectors that would vastly improve its capabilities.
- Earth
Flow West, Young River: Ancient Amazon ran opposite today’s route
The forerunner of the mighty Amazon ran from east to west, a new analysis of rocks laid down by that ancient river suggests.
