Uncategorized
- Astronomy
More space sugar
Astronomers have found a second, colder source of the simple sugar glycoaldehyde in a dust and gas cloud 26,000 light-years from Earth.
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They’re Sequencing a What?
Announcements of new targets for genome sequencing are bringing celebrity to lesser-known twigs on the tree of life.
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I found both your articles on vitamin D very interesting. My question now is whether the rays received in a tanning bed can cause the skin to manufacture vitamin D. Wendy WadeKalamazoo, Mich. Ultraviolet–B radiation triggers the skin to produce vitamin D, whether those rays come from the sun or a lamp. However, not all […]
- Health & Medicine
Vitamin Boost
Vitamin D is being linked to a host of health benefits that go well beyond stronger bones, extending to muscle preservation and some protection against cancer, diabetes, and multiple sclerosis.
- Math
Proof by Computer
Using computers to help prove theorems raises question about checking proofs.
- Humans
Letters from the October 2, 2004, issue of Science News
On a diet While heart disease victim Jody Gorran’s lawsuit against the Atkins empire will be decided in court (“Counting Carbs,” SN: 7/17/04, p. 40: Counting Carbs), the deadlier battle is being waged in the research laboratory. Several studies confirm that low-carbohydrate diets cause marked cholesterol elevations for many individuals. In contrast, a vegetarian diet […]
- Humans
From the September 29, 1934, issue
Structural details of chromosomes, America's Cup yacht technology, and an improved street car.
- Humans
Skeptical Brains
At the Web site of the McDonnell Foundation, a private funder of scientific research, peruse examples of recent media misinterpretations of brain studies—as chosen by foundation staffers—at a page titled “BAD Neuro-Journalism.” Go to: http://www.jsmf.org/about/s/badneuro/index.htm
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Pinpointing Poachers: Gene sleuths map illicit elephant kills
A new, genetics-based technique for determining ivory's place of origin is geographically precise enough to aid forensic pursuit of African elephant poachers.
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Two-Headed Memories: Collaboration gives recall lift to elderly
Collaboration with a spouse improves the accuracy of older people's memories on tasks such as remembering items on a shopping list or identifying familiar landmarks on a local map.
- Animals
Beat Goes On: Carp heart keeps pace when fish lacks oxygen
Without oxygen, a Scandinavian fish not only can survive but also maintains a normal heartbeat for days.
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19466
I would have thought that it is more likely that Earth’s hum creates the weather patterns than the other way around. Judy AngelGlasgow, Scotland
