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  1. Earth

    Mapping watersheds invites comparisons

    Computerized maps of environmental features for 154 of the largest river watersheds will soon be available to the public, free of charge.

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  2. Health & Medicine

    Microbicide thwarts AIDS virus in monkey test

    A microbicidal gel applied vaginally prevents some transmission of the AIDS virus in monkeys.

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  3. Anthropology

    The Stone Masters

    Investigations of modern-day expert and novice craftsmen of stone tools and decorative stone beads offer insights into the making of stone implements thousands and perhaps even millions of years ago.

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  4. 19310

    Like most environmental journalism, the article describes the problem well but not the solution. It would be useful if information about native landscaping were included in this article as an alternative to non-native species. Frank HasslerChampaign, Ill. Your interesting piece on invasive plants touched upon, but otherwise ignored, mycoherbicides for control of noxious weeds. Mycoherbicides, […]

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  5. Ecosystems

    Cultivating Weeds

    Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.

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  6. Inside Violent Worlds

    Political conflict and terror look different up close and local.

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  7. Virus boosts fat in chickens and mice

    Injecting mice and chickens with a type of adenovirus that causes colds in humans led to higher body fat, though not higher body weight, and researchers point to indirect evidence for a role for the virus in human obesity as well.

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  8. Earth

    Lack of spring snowpack bodes ill for many

    NASA satellite images released last week confirmed that the northern United States had much less snow cover than normal this spring, following North America's warmest winter on record.

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  9. Plants

    Team corners culprit in sudden oak death

    After 5 years of mystery, California pathologists announced they may have identified the cause of a new tree disease called sudden oak death.

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  10. Physics

    Why is antimatter absent? Hunt heats up

    Two new particle accelerators built to help discover why there's matter instead of antimatter in the universe are closing in on an answer at record speed.

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  11. 19309

    This article on the Ebola virus’ deadly glycoprotein was frightening enough, but even more terrifying to me was the fact that the researchers had genetically engineered a cold virus, one of the most easily transmitted and successful viruses on the planet, to carry the Ebola glycoprotein. I hope that modified virus never escapes the laboratory, […]

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  12. Ebola protein explains deadly mystery

    The infamous virus called Ebola has a surface protein that kills cells in blood vessels.

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