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6,875 results

6,875 results for: Bears

  1. Humans

    From the March 8, 1930, issue

    LEAVES OLDER THAN GRAND CANYON FOUND Fossil remains of plants found in the walls of the Grand Canyon show that many millions of years ago stunted vegetation of very singular aspect grew in a great, red, sandy floodplain under a semi-arid climate in northern Arizona. This great red land has been found by Dr. David […]

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  2. Health & Medicine

    Lung cancer gene has gender bias

    The X chromosome's gastrin-releasing peptide receptor gene is turned on by nicotine to produce a protein that promotes lung cancer, a combination of factors that could explain why women are more susceptible to the disease than men are.

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  3. Earth

    Cancer Causer? Researchers zero in on leukemia risks

    Researchers add to mounting evidence that household pesticide exposure may be a significant risk factor for childhood leukemia.

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  4. Health & Medicine

    Antioxidants for greyhounds? Not a good bet

    Antioxidant vitamins that greyhound racers have been giving their animals to boost performance actually slow down the dogs.

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  5. Health & Medicine

    Fibroid Maladies

    Every year, roughly 200,000 women in the United States get a hysterectomy–surgical removal of the uterus–to alleviate the pain and pressure of uterine fibroids. These noncancerous growths affect millions of women in child-bearing years. A good source of information on symptoms, treatments, surgical options, and possible causes is found at this site, compiled by the […]

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  6. Lady-killing genes offer pest control

    Two new fruit fly lines—with females that die on cue—could lead to changes in pest control.

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  7. Humans

    From the December 17 & 24, 1932, issues

    BEAUTY FROZEN IN GLASS SERVES CAUSE OF SCIENCE Gems as fantastically beautiful as any that have ever glittered in dreams of a frosty Christmas fairyland are being made in glass for the American Museum of Natural History by Herman Mueller, reputed to be the world’s most skillful glassblower. They are not mere conventional designs, however, […]

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  8. Humans

    From the December 17 & 24, 1932, issues

    BEAUTY FROZEN IN GLASS SERVES CAUSE OF SCIENCE Gems as fantastically beautiful as any that have ever glittered in dreams of a frosty Christmas fairyland are being made in glass for the American Museum of Natural History by Herman Mueller, reputed to be the world’s most skillful glassblower. They are not mere conventional designs, however, […]

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  9. Health & Medicine

    Shuttling medicines via blood cells

    Researchers have developed a way of encapsulating drugs in red blood cells, which can be used to deliver low doses of anti-inflammatory drugs to cystic fibrosis patients.

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  10. Anthropology

    Cultures of Reason

    East Asian and Western cultures may encourage fundamentally different reasoning styles, rather than build on universal processes often deemed necessary for thinking.

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  11. Health & Medicine

    Watermelon red means lycopene rich

    Watermelon is a far better source of the carotenoid lycopene than tomatoes are and at least as well absorbed by the body.

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  12. Humans

    Official Concern: U.N. weighs in on acrylamide toxicity

    A United Nations panel concluded that, in fried, grilled, and baked foods, the formation of acrylamide, a carcinogen and nerve poison in rodents, constitutes "a serious problem."

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