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  1. Earth

    Hurricane Season

    The U.S. Geological Survey offers a Web site devoted to the impact of hurricanes and extreme storms on coastal regions of the United States. Historical information reviews the effects of such hurricanes as 2003’s Isabel and 1996’s Fran. Another section looks at erosion along the U.S. West coast caused by El Niño-induced changes. The site […]

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  2. Invasive Genes: Humans incorporate DNA from parasite

    Bits of foreign DNA from the parasite that causes Chagas' disease becomes integrated into the DNA of infected hosts, marking the first time that parasitic DNA has ever been found in the human genome.

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  3. Chemistry

    Velcro Therapy: Branching polymer wards off scarring after eye surgery

    Specially designed polymer molecules called dendrimers reduce scar tissue formation after glaucoma surgery, dramatically improving the procedure's outcome.