News
- Health & Medicine
Rwandan patients show unusual HIV
Blood tests on people in Rwanda who have had HIV infections for years without symptoms of AIDS indicate that the viruses in these patients have rare mutations.
- Health & Medicine
Will new approach cure Chagas disease?
Scientists may be able to disable the parasite that causes Chagas disease by targeting the enzyme it uses to make essential fats.
- Health & Medicine
Suppressive drug therapy hinders herpes
A daily regimen of the antiviral drug valacyclovir controls genital herpes vastly better than does the same medication when used only to treat outbreaks of the disease.
- Health & Medicine
Ominous drug-resistance hints appear
The first signs of partial resistance to an important class of drugs called quinolones have appeared in Haemophilus influenzae, a bacterium that can cause pneumonia and meningitis.
- 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.
- Health & Medicine
Garlic interferes with HIV drug
Garlic supplements interact negatively with a protease inhibitor medication taken by people infected with HIV.
- 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.
