Uncategorized
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19782
This article took a wrong turn into Hormesis Swamp. The hormesis thesis has been thoroughly discredited by all major radiation organizations and professional societies, and its past conferences have been sponsored by tobacco companies and the U.S. Air Force. Lynn Howard EhrlePlymouth, Mich.
- Earth
Counterintuitive Toxicity
Toxicologists risk missing important health effects, both good and bad, if they don't begin regularly probing the impacts of very low doses of poisons.
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19781
Regarding this article, there are also suspected connections between high-impedance commuting and blood pressure, commuting and unhealthy exposure to air pollution, and commuting and back problems and anxiety. Combined with the effects of auto emissions on global warming, one would think that national debates on sprawl and mass transit are long overdue. Julia JorgensenHouston, Texas […]
- Humans
Weighing In on City Planning
Accumulating evidence suggests that urban sprawl discourages physical activity and may thereby contribute to obesity and related health problems.
- Humans
Letters from the January 20, 2007, issue of Science News
Sea tales In “Dashing Rogues” (SN: 11/18/06, p. 328) on rogue waves, you make no mention of the use of satellite data, which is ideal for this sort of study. Two projects, in particular, are of great relevance: the European Union’s MaxWave study and the subsequent WaveAtlas project. The former, with just 3 weeks’ data, […]
- Math
Art of the Tetrahedron, Revisited
A New Orleans sculptor and his tetrahedron-based artworks survived Hurricane Katrina.
- 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.
