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Your search has returned 14 articles:
  • News

    Catch of the day for cancer researchers

    Glowing zebrafish, like this one, may provide insight into the spread of human leukemia and other cancers in which a gene called MYC promotes cell growth. Researchers fused the mouse version of MYC to a gene encoding a fluorescent-green protein and inserted the combination into zebrafish DNA. They injected this DNA into embryos to create lines of fish in which the gene is active in some...

    02/06/2003 - 10:54
  • News

    Mind Numbing: Anesthesia in baby rats stunts brain development

    General anesthetic drugs that physicians commonly administer to children undergoing surgery, when given to baby rats, trigger brain cells to commit a cellular form of suicide that leads to lasting memory and learning deficits, neuroscientists have found. So far, there's no evidence of similar effects in children who have received anesthesia, researchers say.

    As the brain develops,...

    02/05/2003 - 12:41 Biomedicine
  • News

    Budget Boosts and Busts: R&D for Defense, NASA garner funding rise

    The five-volume, 2,866-page budget proposal forwarded to Congress by President Bush on Feb. 3 contains a record-setting request for federal research and development. Together, NASA and the Department of Defense are slated to receive about 80 percent of the suggested increase in R&D funding. Other big winners in this year's budget include the National Science Foundation and the newly...

    02/05/2003 - 12:04 Humans & Society
  • News

    Bt Cotton: Yields up in India; pests low in Arizona

    The two cotton-growing centers could hardly differ more. But small farms in India and industrial fields in Arizona both provide case studies that show the bright side of a widespread genetically engineered crop.

    The crop, Bt cotton, has borrowed a toxin gene from the bacterium Bacillus thuringiensis to make its own pesticide. According to a report in...

    02/05/2003 - 11:21 Agriculture
  • News

    Bad Sleepers Hurry Death: Snoozing soundly staves off the Big Sleep

    For many people, a good night's sleep is rare. Surveys indicate that around one in three older adults, ages 55 and up, experiences chronic insomnia or other sleep disturbances. The news gets worse.

    Among a group of healthy elderly people tracked for an average of 13 years, those who had difficulty falling or staying asleep died from natural causes at a much higher rate than those who...

    02/05/2003 - 10:44
  • News

    Exonerated? Foods' acrylamide risks appear low

    A new Swedish analysis downplays the likelihood that people will develop cancer from eating foods naturally tainted with acrylamide, a building block of many plastics and an animal carcinogen.

    Acrylamide made headlines last year when researchers reported that the compound routinely forms during high-temperature cooking, such as frying and baking, especially of potatoes, breads, and...

    02/05/2003 - 10:23 Nutrition
  • News

    Columbia Disaster: Why did the space shuttle burn up?

    The space shuttle Columbia, which tore apart killing all seven of its crew on Feb. 1 just minutes before it was scheduled to land, may have been doomed since its liftoff. That's when an estimated 2.7-pound chunk of insulating foam, perhaps combined with ice, came loose from the main external fuel tank and struck the underside of the shuttle's left wing near the wheel well. The chunk was the...

    02/05/2003 - 09:20 Technology
  • Feature

    Dietary Dilemmas

    This time of year, thoughts turn from overloaded holiday tables to overweight bodies, the beach, and diet programs. Losing weight is not just a matter of looking good in a swimsuit. Packing on the pounds increases a person's risk of heart disease, diabetes, high blood pressure, stroke, and some cancers. Recent surveys estimate that more than 50 percent of adults in the United States are...

    02/05/2003 - 08:57 Nutrition
  • News

    Cell phones distract drivers, hands down

    Calling all motorists: Using a hands-free cell phone while driving markedly interferes with the ability to maneuver a vehicle safely, according to several new tests.

    In 2001, David L. Strayer of the University of Utah in Salt Lake City and his colleagues reported that people talking on either handheld or handsfree cell phones during simulated drives ran red lights more often and reacted...

    02/03/2003 - 19:50
  • News

    Microscopic glass ribbons provide molecular labels

    A new type of barcode is too small to see with the naked eye, yet it holds big promise for biomedical research, law enforcement, and everyday life, say researchers.

    The fluorescent tagging devices are short glass ribbons just 100 micrometers long and 20 m wide. They contain stripes reminiscent of the black-and-white barcodes on milk cartons or cereal boxes, but these new...

    02/03/2003 - 19:45 Materials