Vol. 161 No. #25
Archive Issues Modal Example

More Stories from the June 22, 2002 issue

  1. Health & Medicine

    Drug cuts risk of seizures in pregnancy

    An inexpensive drug treatment lessens the risk of seizures that sometimes strike and even kill women during pregnancy or immediately after delivery.

  2. Tech

    Tiny rockets may advance minisatellites

    A new type of miniaturized rocket may bring microspacecraft one step closer to reality.

  3. Health & Medicine

    New clue stirs up lithium mystery

    Lithium and two other mood-stabilizing drugs may all work by depleting nerve cells of a chemical that the cells use to signal each other.

  4. Chemistry

    A crystal takes on an unusual topology

    A single crystal exhibits the unusual topology known as a Möbius strip.

  5. Health & Medicine

    Chinese chimneys slash lung cancer risk

    People in rural China who replace rudimentary domestic hearths with well-ventilated stoves enjoy both less-smoky homes and a dramatic reduction in their risk of developing lung cancer.

  6. Health & Medicine

    Let Them Eat Cake: Altered mice stay svelte on a high-fat diet

    A protein that links gluttony and weight gain may be a novel target for antiobesity drugs.

  7. Humans

    Dangerous Wake: Wing vortices yield a deadly secret

    A new mathematical analysis of an aeronautical hazard known as wake turbulence could someday lead to improved air safety and increase the number of flights at major airports.

  8. Health & Medicine

    Enough Isn’t Enough: An epidemic of vitamin D deficiency

    Many U.S. women of childbearing age, particularly those of African descent, lack sufficient vitamin D even though they consume the recommended amount.

  9. Chemistry

    Molecule Sorting: Antibody membrane lends a hand

    A new membrane may make it easier to separate mixtures of drug molecules that exist in mirror-image versions into their two components.

  10. Astronomy

    Planetary System in the Making? Stellar eclipse hints at planet-forming debris

    Astronomers reported the first evidence that a young star is periodically eclipsed by a stream of debris, possibly an orbiting belt of asteroids held in place by a massive, unseen planet.

  11. Hostile Intent: Abused kids face up to angry expressions

    Physical abuse at home apparently tunes a school-age child's perceptual system to pick up signs of anger in others' facial expressions.

  12. Health & Medicine

    Stem Cell Gain: Bone marrow cells seem to have what it takes

    Tests show that a rodent bone marrow cell similar to one found in people acts as a multipurpose stem cell, much as embryonic stem cells do.

  13. Tech

    Making a Little Impression: New chip-making method may mold the industry

    A simple mechanical means of embossing silicon may offer an alternative to conventional chip-making methods.

  14. Animals

    Oops. Woodpecker raps were actually gunshots

    The knock-knock noises recorded last winter that raised hopes for rediscovering the long-lost ivory-billed woodpecker in Louisiana turn out to have been gunshots instead of bird noises.

  15. Numbers in Mind

    Initial reports of babies' basic counting abilities have inspired a wave of new research and a spirited debate about what infants really know about numbers.

  16. Evolutionary Shocker?

    A specific protein may help plants and animals store genetic variation and release it at times of stress.