Uncategorized
- Earth
Bolts from the blue can have long reach
Current U.S. Air Force operating procedures recommend personnel stop working outdoors when lightning is spotted within 5 nautical miles, but a new analysis suggests that this distance may not be adequate to fully protect aircraft and ground crews.
- Earth
Southeastern Alaska is on the rebound
Scientists using the Global Positioning System to track ground movement along faults in southeastern Alaska have measured something entirely different—the rapid rise of parts of the region due to the recent melting of glaciers.
- Earth
Global warming to boost cotton yields
The increase of carbon dioxide expected in the coming decades may boost cotton yields up to 26 percent, new models predict.
- Earth
Toxic metals taint ancient dust
A new study of dust lofted to Antarctica suggests that excess amounts of trace metals coated dust grains long before human industrial activity began loading the atmosphere with pollutants.
- Earth
Turbulence leads to early rain of ash
A new aerodynamic analysis suggests that chaotic turbulence in a high-altitude cloud of volcanic ash can cause small particles of the ash to clump together and fall to the ground much closer to the volcano than expected.
- Materials Science
Getting Out the Thorn
Researchers are developing new ways to improve the compatibility of implantable biomaterials in the body.
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18983
From a cattleman’s perspective, I would like to add to your timely article that besides the benefits that would come to the environment from stopping the use of pharmaceutical growth promoters in cattle, we would also have a more tender product to market. An under-reported side effect of the use of growth stimulants is about […]
- Earth
Hormones: Here’s the Beef
Runoff of the hormones excreted by steroid-treated livestock could subtly harm aquatic life.
- Health & Medicine
Garlic interferes with HIV drug
Garlic supplements interact negatively with a protease inhibitor medication taken by people infected with HIV.
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18982
I enjoy Science News very much but not the occasional article singing the praises of alcoholic beverages, particularly red wine, as a benefit to the cardiovascular system (“A glass of red may keep the arteries loose,” SN: 1/5/02, p. 8). When the articles become specific concerning the substances that bring the benefit, they refer to […]
- Health & Medicine
A glass of red may keep arteries loose
A newly uncovered effect of a compound abundant in red wines may provide the mechanism needed to explain how reds could outperform whites and rosés in reducing heart disease.
- Health & Medicine
Prenatal folate averts child leukemia
Even a little supplementary folate during pregnancy now appears to reduce the risk that the child will develop acute lymphoblastic leukemia.
