Vol. 159 No. #21

More Stories from the May 26, 2001 issue

  1. Soy estrogen laces paper-mill wastes

    Paper-mill effluent contains an estrogen-mimicking pollutant at concentrations that may adversely affect reproduction in fish.

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  2. Caterpillars die rather than switch

    A newly identified compound in tomatoes and other plants of the nightshade family turns hornworms into addicts that often starve rather than eat another food.

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  3. Health & Medicine

    New drug takes on intestinal cancer

    Imatinib mesylate, already approved by the FDA for treating people with a form of leukemia, blocks the activity of certain enzymes that cause gastrointestinal stromal cells to replicate uncontrollably.

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  4. Health & Medicine

    Gender bias: Stroke after heart surgery

    Women are more likely than men to suffer strokes after heart surgery.

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  5. Materials Science

    Future brightens for carbon nanotubes

    Researchers have made a lightbulb that depends on carbon nanotubes for its glow.

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  6. Materials Science

    Nanotubes form dense transistor array

    Researchers have made an array of transistors out of carbon nanotubes.

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  7. Paleontology

    Early Mammal’s Jaw Lost Its Groove

    A tiny fossil skull found in 195-million-year-old Chinese sediments provides evidence that crucial features of mammal anatomy evolved more than 45 million years earlier than previously thought.

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  8. Look on the bright side and survive longer

    People who, as young adults, describe their lives using a variety of terms for positive emotions live substantially longer than those who express little positive emotion, according to a long-term study of Catholic nuns.

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  9. Health & Medicine

    Antibiotic resistance is coming to dinner

    Foods tainted with bacteria that antibiotics don't kill are a recipe for more serious—even lethal—infections.

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  10. Chemistry

    Designer surface proves deadly to bacteria

    Researchers have made a surface coating that kills bacteria on contact in a novel way.

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  11. Health & Medicine

    Poliovirus slaughters brain tumors in mice

    Scientists have altered a live polio virus, inducing it to target and kill brain tumor cells without causing polio.

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  12. Slave-making ants get rough in New York

    The whole ant slave-making business turns more violent in New York than in West Virginia, even though it features the same species.

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  13. Health & Medicine

    Genetic flaw found in painful gut disease

    Scientists have discovered a genetic mutation that occurs in people with Crohn's disease, a digestive disorder that attacks the intestines.

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  14. Physics

    Electrons trip on tiny semiconductor steps

    A first glimpse of how a semiconductor's surface alters electrons' magnetic fields, or spins, suggests that tiny steps in the surfaces are tripping up efforts to create so-called spintronics circuits from semiconductors.

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  15. Astronomy

    Captured on Camera: Are They Planets?

    Studying several groups of nearby, newborn stars–many of which weren't known until a few years ago–researchers may soon obtain the first image of a bona fide planet orbiting a star other than our sun.

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  16. A Fly Called Iyaiyai

    All that Latin has its light side.

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