Word: bacterias
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
...respiratory infections--colds, strep throat, middle-ear and sinus infections--may be a sign of undiagnosed allergy. One of the ways the body responds to the tiny particles that trigger allergies is by producing mucus, which turns out to be a terrific medium for trapping and growing viruses and bacteria. Getting rid of the mucus, which means identifying and treating the allergy, makes it much less likely that you will catch those germs in the first place. As a general rule, infants who suffer more than six upper-respiratory infections a year, and school-age children and adults with more...
Unhealthy health food? Although growers are trying to eliminate the risk of salmonella poisoning from alfalfa sprouts, scientists report it's not so easy. The bacteria, it turns out, may hide in tiny crevices in the seeds. The most susceptible to getting sick: the very young, the elderly and folks with weak immune systems...
...pussyfoot around if you're bitten by a dog or cat. Scientists report that in at least half of all cases, bites carry pasteurella--nasty bacteria that can cause an infection in the blood or joints and, in rare instances, meningitis. If swelling or pain develops, see a doctor promptly...
Because their cells naturally produce large quantities of protein, potatoes and tomatoes seem for now to be the most efficient vehicles for the new approach. Instead of mixing viral or bacterial DNA in a formula for injection, for example, scientists could insert it into soil bacteria. When the bacteria are taken up by the plant, therapeutic DNA material is stitched into the plant's genome. Another method of getting genes into plants is to coat tiny particles of tungsten or gold with foreign DNA, then shoot the particles directly into plant cells. Either way, the plant's cells start...
There is lots of zip in DNA-based biology today. With each passing year it incorporates an ever increasing fraction of the life sciences, ranging from single-cell organisms, like bacteria and yeast, to the complexities of the human brain. All this wonderful biological frenzy was unimaginable when I first entered the world of genetics. In 1948, biology was an all too descriptive discipline near the bottom of science's totem pole, with physics at its top. By then Einstein's turn-of-the-century ideas about the interconversion of matter and energy had been transformed into the powers...