Vol. 166 No. #3 Archives

More Stories from the July 17, 2004 issue

  1. Earth

    Treaty enacted to preserve crop biodiversity

    The United Nations enacted a new international treaty to halt the erosion of genetic diversity of crops.

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  2. Tech

    Nanorods go for the gold

    Gold blobs grown onto the ends of tiny, rod-shaped crystals provide potential points for electric contact and chemical liaisons that could enable such semiconductor bits to self-organize into complex circuits or structures.

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  3. Humans

    The high cost of staying current

    Reading peer-reviewed journals remains a primary means by which researchers stay on top of developments in their fields, but the annual costs for these periodicals are steep.

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  4. Health & Medicine

    Four die of rabies in transplanted tissues

    Four people who received tissue transplanted from a man who had died from an undiagnosed rabies infection have since themselves died from the same incurable neurological disease.

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  5. Earth

    Bacteria found to release arsenic into groundwater

    Arsenic gets into groundwater largely through the action of bacteria residing in aquifer sediments.

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  6. Physics

    Quantum snare entraps key fifth photon

    By coaxing five quantum particles into a state of entanglement, physicists have taken an important step toward dependable quantum computers and more-versatile schemes for transferring quantum information.

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  7. Tech

    Outer space on the cheap

    The first-ever private, manned space mission occurred on June 21.

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  8. Female brains know how to fold ’em

    Women compensate for the smaller overall volume of their brains by squeezing more folds into some of the space than men do.

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  9. Earth

    Sea Change: Carbon dioxide imperils marine ecosystems

    Almost half the carbon dioxide produced by human activity in the past 2 centuries is now dissolved in the oceans, resulting in chemical changes that, if unchecked, could threaten some marine ecosystems.

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  10. Health & Medicine

    A Toxic Side of Weight Loss: Pollutants may slow body’s metabolism

    Weight loss releases toxic chemicals into the bloodstream, which may slow the body's metabolism.

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  11. Groomed DNA Handles Threats: Mothering styles alter rats’ stress responses

    In rats, mothering styles set the genetic stage for a pup's lifelong responses to stressful situations.

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  12. Chemistry

    Nitrogen Power: New crystal packs a lot of punch

    At extremely high temperatures and pressures, nitrogen gas assumes a three-dimensional crystal structure called polymeric nitrogen, a long-sought energy-storage material.

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  13. Physics

    Feel the Force: Magnetic probe finds lone electron

    Scientists have observed a single electron's magnetism.

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  14. Health & Medicine

    Leukemia Fighter: Drug could combat resistant cases

    A new drug for treating chronic myeloid leukemia that is resistant to the frontline drug imatinib shows promise in mouse tests.

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  15. Animals

    Sparrows Cheat on Sleep: Migratory birds are up at night but still stay sharp

    During their fall migration season, white-crowned sparrows sleep only about a third as much as they do at other times of the year without becoming slow-witted.

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  16. Health & Medicine

    Counting Carbs

    Although low-carbohydrate diets can be powerful weight-loss tools, many physicians now conclude they aren't for anyone who isn't under a doctor's watchful eye.

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  17. Materials Science

    Diatom Menagerie

    Materials scientists are trying to coerce diatoms into making silicon-based microdevices with specific features.

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  18. Humans

    Letters from the July 17, 2004, issue of Science News

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