5,615 results
5,615 results for: Bacteria
- Health & Medicine
McDonald’s Cutback in Antibiotics Use Could Reduce Drug-Resistant Bacteria
The fast-food chain McDonald’s announced on June 19 that it will stop its farms under contract from feeding chicken, cattle, and pigs certain antibiotics intended to accelerate the animals’ growth. That step might slow or reverse the rise of antibiotic-resistant bacteria that can infect people, scientists say. HAPPIER MEAL. Coming soon to a McDonald’s near […]
- Earth
Suspended Drugs: Antibiotics fed to animals drift in air
Borne on dust floating in and around farm buildings, antibiotics given to animals may later be inhaled by people—with possibly detrimental health effects.
- Earth
Strange crystal birth found in mine
Deep in a Wisconsin mine, researchers have uncovered a new way for crystals to grow in nature.
- Earth
When testosterone gets down and dirty
Testosterone excreted by livestock can pass through soils, which may explain new findings of fish-altering hormonal activity in water downstream of cattle feedlots.
- Chemistry
New solution for kitchen germs
Acidic electrolyzed water appears to kill foodborne germs more effectively than a bath of dilute bleach.
- Chemistry
Amending the Genetic Code: Yeast adds new amino acids to its proteins
Researchers have created yeast cells that add one of five unnatural amino acids to their natural 20-piece construction set.
- Planetary Science
Martian Methane: Carbon compound hints at life
The presence of methane in the Martian atmosphere spotlights the possibility that there might be primitive life on the Red Planet.
- Earth
Can Banking Carbon Cool the Greenhouse?
Stockpiling carbon dioxide in plants and soil may be effective only for the short term, if at all.
- Health & Medicine
Bacteria-Stocked Beverage Clears Pathogens from Nose
Dangerous bacteria often take refuge deep inside peoples noses, where they can remain dormant until they find an opportunity to invade other parts of the body. Perhaps the most important of these stowaway nasal microbes is Staphylococcus aureus, which can spread to wounds and surgical incisions and cause life-threatening blood infections. As many as a […]
- Chemistry
Sea bacteria may be new anticancer resource
Researchers examining deep-sea sediments have uncovered a large source of previously unknown bacteria that appear to produce disease-fighting chemicals.
- Humans
From the October 14, 1933, issue
SOVIET ASCENSION BREAKS WORLD ALTITUDE RECORD Enclosed within the metal shell pictured on the front cover of Science News Letter, three Soviet scientists rose higher above the surface of the earth than man has ever been before, in an ascension from Moscow on September 30. It is the gondola of the Soviet free balloon USSR. […]
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While the report of ballistic testing of bacteria is a fascinating study of bacterial survival, I’d be more concerned about the effects of severe extremes of heat, cold, and vacuum on the survival of bacterial spores. As the study stands, we’re still left wondering about these other important factors. Jon OngWoodland Hills, Calif. Bacteria can […]
