Uncategorized
- Health & Medicine
Patch guards against Montezuma’s revenge
A patch worn on the skin delivers a vaccine against a form of Escherichia coli that causes traveler's diarrhea.
- Health & Medicine
Additives may make youngsters hyper
Common food colorings and the preservative sodium benzoate have the potential to foster hyperactivity and inattentiveness in children, a new study finds.
- Chemistry
Hydrogen makers
A new bioreactor produces hydrogen hundreds of times as fast as previous prototypes.
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ADHD kids show slower brain growth
A new brain-scan investigation indicates that attention-deficit hyperactivity disorder involves substantial delays in children's brain development.
- Anthropology
Ancient-ape remains discovered in Kenya
Newly unearthed fossils of a 9.8-million-year-old ape in eastern Africa come from a creature that may have evolved into a common ancestor of African apes and humans.
- Earth
Hey, What about Us?
The plight of polar bears may get most of the attention as climate change disrupts the Arctic ice, but plenty of other species, from walrus and seals to one-celled specks, are also going to see their world change radically.
- Computing
Social Networking for Zebras
Scientists are developing a new branch of network theory to understand zebra communities.
- Humans
Letters from the December 1, 2007, issue of Science News
Bed nets and insecticides Kenyan researchers report that insecticide-treated bed nets can reduce malaria-related deaths in children (“Keep Out: Treated mosquito nets limit child deaths,” SN: 9/29/07, p. 195). While these nets appear to provide preventive measures against malaria, my only concern is the toxicity of the insecticides. The World Health Organization lists two of […]
- Humans
From the November 20, 1937, issue
An American Nobel laureate in physics, the need for research in the chemistry of petroleum, and a new way to send photographs by telegraph.
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Poles Apart, but Viewed Together
We’re well into the International Polar Year, which actually runs for 2 years. The program, which is coordinating teams doing Arctic and Antarctic research, will allow the public to periodically check in on developments. For instance, people will be able to follow polar animals as they fly around the Antarctic, swim through the oceans, or […]
- Health & Medicine
Biohazard: Smoking before or after pregnancy may harm daughters’ fertility
Smoking before pregnancy or during breastfeeding might impair the female offspring's fertility, a study in mice shows.
- Physics
Einstein Unruffled: Relativity passes stringent new tests
The moon's orbit and the dilated time of speeding atoms give new meaning to 'Einstein was right.'
