Vol. 159 No. #7
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More Stories from the February 17, 2001 issue

  1. Genetics

    The Newly Sequenced Genome Bares All

    The mapped human genome begins to reveal its secrets.

  2. Materials Science

    Scientists develop self-healing composites

    Researchers have developed a composite material that has the ability to repair small cracks within itself, a characteristic that could be used to extend the reliability and service life of electronic and aerospace components.

  3. Physics

    Muon orbits may defy main physics theory

    A tiny discrepancy from theory in a newly remeasured magnetic trait of a subatomic particle, the muon, may represent a first crack in the 30-year-old prevailing standard model of particle physics.

  4. Health & Medicine

    Common additive thwarts malaria parasite

    Triclosan--a drug used as an antimicrobial agent in toothpaste, deodorant, and other products--kills rodent malaria parasites in mice and human malaria parasites in test-tube studies.

  5. Archaeology

    Maize domestication grows older in Mexico

    Maize cultivation existed in southern Mexico at least 6,300 years ago, according to a recent radiocarbon analysis of two maize cobs unearthed in a cave nearly 40 years ago.

  6. Planetary Science

    Happy landing: Craft descends onto Eros

    On Feb. 12, NEAR Shoemaker became the first spacecraft to land on an asteroid, the space rock 433 Eros.

  7. Hormone therapy may prove memorable

    Healthy, older women may be protected against losses of verbal memory that typically occur with age if they receive hormone-replacement therapy.

  8. Organ donations take family toll

    Taiwanese people who donate organs from a deceased family member still support that decision 6 months later, despite frequently experiencing negative consequences related to their culture and religion.

  9. Chemistry

    New all-metal molecules ape organics

    Researchers have stumbled upon the first all-metal, aromatic molecules.

  10. Chemistry

    Research shows why water acts weird

    A new technique shows a link between water's unusual physical properties and its abnormal molecular structure.

  11. Health & Medicine

    Can childhood diets lead to diabetes?

    Prolonged consumption of foods that break down quickly into simple sugars appears to foster obesity and vulnerability to diabetes, an animal study shows.

  12. Health & Medicine

    Calcium supplements for chocolate

    Using soap chemistry, scientists prevented some of chocolate's saturated fat--and calories--from being absorbed.

  13. Into the Mystic

    Scientists confront the hazy realm of spiritual enlightenment.

  14. Materials Science

    From Metal Bars to Candy Bars

    Materials scientists have turned the tools of their trade on some of the most familiar substances in the world: food.