News
- Health & Medicine
Folate cuts family risk of colon cancer
According to a 16-year study of nearly 90,000 women, the vitamin folate has a protective effect against colon cancer among women whose families have been affected by the disease.
- Earth
Motion of ice across Lake Vostok revealed
New measurements of the movement of the Antarctic ice sheet across a lake that harbors microbial life beneath 4 kilometers of ice could help scientists determine where to drill to get the freshest samples of frozen water without contaminating the lake.
- Ecosystems
Climate Upsets: Big model predicts many new neighbors
The biggest effects of climate change during the next 50 years may not be extinctions but major reshuffling of the species in local communities.
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Globin Family Grows: Blood-protein relative is in all tissues
Researchers discovered a relative of the blood protein hemoglobin in all the body's tissues.
- Animals
Toxic Tools: Frogs down under pack their own poison
An Australian frog can synthesize its own protective poison, rather than obtain it from the insects it eats.
- Physics
Molding Atoms: Using a tiny template to make tinier structures
With the help of a molecular mold composed of exactly 188 atoms, researchers have been able to impose textures at an even smaller atomic scale on a metal surface.
- Materials Science
Steely Glaze: Layered electrolytes control corrosion
Experiments with ultrathin organic coatings applied to steel suggest a new technique for slowing corrosion.
- Astronomy
Gamma-Ray Burst: A black hole is born
New evidence supports the notion that gamma-ray bursts, the most violent explosions in the universe, are the primal calling cards of newborn black holes.
- Anthropology
The DNA Divide: Chimps, people differ in brain’s gene activity
The distinctive looks and thinking styles of people and chimpanzees derive from the contrasting productivities of their similar DNA sequences.
- Health & Medicine
Vanquishing a Virus: New drugs attack herpes infections
Scientists have identified a new class of compounds that stop herpes simplex virus from replicating.
- Earth
Do your bit to fight toxic pool pollution
New data suggest that showering before a swim in the community pool could help limit the formation of toxic chemicals in the water.
- Health & Medicine
Diluted smallpox vaccine is potent
About 15 million doses of smallpox vaccine held by the U.S. government can be diluted to one-tenth their original concentration and still be effective for immunizing people.
