Uncategorized
- Earth
Natural Hazards
The U.S. Geological Survey has launched a new Web site about the threat of natural disasters. It provides seven easy-to-understand fact sheets on earthquakes, floods, hurricanes, landslides, tsunamis, volcanoes, and wildfires. The site also highlights resources and information available from the USGS and provides links to individual hazards Web pages for more detailed information. Go […]
- Humans
From the January 9, 1937, issue
A new AAAS president, preventing blood clots, and new elements in the sun.
- Chemistry
Switch Hitters: Antibacterial compounds target new mechanism to kill microbes
Recently discovered ribonucleic acid segments, called riboswitches, may become prime targets for new antibacterial drugs.
- Materials Science
Electrode Enhancements: New materials may boost fuel cell performance
Two teams have independently discovered ways to dramatically improve the materials used in the electrodes of fuel cells.
- Plants
Biggest Bloom: Superflower changes branch on family tree
The plants with the world's largest flowers, the rafflesias, need to be moved closer to poinsettias on the family tree of plant life.
- Health & Medicine
No Fluke: New weapon against tropical parasite
An experimental drug shows potential against schistosomiasis.
- Ecosystems
Alien Alert: Shrimpy invader raises big concerns
A shrimplike European invader just discovered in the Great Lakes could prove ecologically disruptive to populations of native lake animals.
- Astronomy
Fleet Finding: Speed of Milky Way’s companions poses puzzle
New measurements of the speed of two familiar companion galaxies to the Milky Way suggest some unfamiliar possibilities.
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19780
Would it be feasible for the government to require both folate and vitamin B12 in grain products? Nancy PowerAltadena, Calif. Researchers say that such double fortification is theoretically possible. However, vitamin B12 is more expensive than folate, and it turns flour pink. —B. Harder
- Health & Medicine
Folic Acid Dilemma: One vitamin may impair cognition if another is lacking
The nutrient folic acid is generally good for brain health, but research now suggests that too much of it might harm people who get too little vitamin B12.
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Genes discovered for sensing carbon dioxide
Researchers have tracked down a pair of genes that, together, seem responsible for some insects' ability to sense carbon dioxide.
- Humans
Congress upgrades fisheries protection
Congress has reauthorized and strengthened a 30-year-old federal law governing fishing and ocean management.
