Uncategorized
- Tech
Virus has the Midas touch
Researchers have recruited a stringlike virus to carry nanoscale loads of gold that could serve as imaging agents in cancer diagnosis.
- Humans
Letters from the February 11, 2006, issue of Science News
Preventive measure? Regarding “Rare but Fatal Outcome: Four deaths may trace to abortion pill” (SN: 12/3/05, p. 358), would it be possible for an antibiotic to be included with the RU-486 package to prevent a Clostridium sordellii infection? Like millions of other people, I have to take an antibiotic prior to dental procedures to prevent […]
- Earth
Prions’ dirty little secret
The malformed proteins responsible for mad cow disease bind tightly to clay, a finding that points to farm soil as a potential long-term reservoir for these infective agents.
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Depression’s rebirth in pregnant women
Expectant mothers who temporarily stop taking their antidepressant medication stand a good chance of sinking back into depression while pregnant.
- Health & Medicine
Newborn head size linked to cancer risk
Healthy newborns with big heads face an increased risk of brain cancer.
- Animals
Hawk skin sends UV signal
The patch of skin above a hawk's beak looks orange-yellow to us, but to another hawk, it may broadcast ultraviolet sex appeal.
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19643
Some of the descriptions about confusion of self contained in your article were very reminiscent of the confusion I often sense in dreams. I even recognize in some dreams the sensation described in the article about various body parts not being part of “me.” I wonder if this aspect of normal (I assume) dreaming has […]
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Self-Serve Brains
New brain-imaging studies and investigations of certain types of brain damage suggest that the right hemisphere typically coordinates one's sense of being a self, with a body and a set of life experiences distinct from those of other people.
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19642
Why is it that visible light is shifted to lower frequencies but gamma rays aren’t? Shouldn’t they have become X rays after all that distance? Stephen WoodOrlando, Fla. All wavelengths are redshifted. That means that high-energy gamma rays beyond a detector’s energy range would get shifted into the detectable range by cosmic expansion, while slower-energy […]
- Astronomy
Blasts from the Past
Gamma-ray bursts may soon surpass quasars and galaxies as the most distant known objects in the universe and are likely to provide a new window on the early universe.
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- Animals
Cyber Salmon
To learn about chum, chinook, and coho salmon, try this Web site from the Alaska Region of the U.S. Fish and Wildlife Service. Learn about the people of Alaska, several salmon species, and salmon habitat. The site includes salmon-related activities and lesson plans for various grade levels. Go to: http://cybersalmon.fws.gov/index.html
