1. Health & Medicine

    Virus in transplanted hearts bodes ill

    Pediatric heart-transplant recipients who acquire a viral infection in the heart fare poorly over the long term.

  2. Humans

    San Jose hosts 2001 science competition

    More than 1,200 students from almost 40 countries competed last week in San Jose for more than $3 million in prizes and scholarships at the 2001 Intel International Science and Engineering Fair.

  3. Many refugees can’t flee mental ailments

    Refugees interviewed in camps in Nepal exhibit post-traumatic stress disorder and other mental ailments, especially if they have survived torture in their native country.

  4. Astronomy

    Snacking in space: Star dines on planet

    Astronomers have found evidence that a star has swallowed one or more of its own planets.

  5. Physics

    Light shines in quantum-computing arena

    A new computing scheme using available technology and only classical physics appears to handle many tasks that researchers thought would be unsuited to any computers except the still-hypothetical ones that would exploit quantum physics.

  6. Earth

    They’re not briquettes, but they’ll do

    Chunks of fossil charcoal found in ancient sediments in north central Pennsylvania suggest that cycles of wildfire plagued Earth more than 360 million years ago.

  7. To save gardens, ants rush to whack weeds

    Ants can grow gardens, too, and the first detailed study of their weeding techniques shows that whether a gardener has two legs or six, the chore looks much the same.

  8. Anticancer Protein Locks onto DNA

    The protein encoded by the normal form of BRCA1 attaches to DNA directly, seeks out unusual DNA structures, and joins multiple DNA strands together—all activities suggesting a direct role in DNA repair.

  9. Lyme ticks lurk on golf course edges

    At least half the ticks collected along woodsy edges of five golf courses in Rhode Island carry the baterium that causes Lyme disease.

  10. How spiny lobsters make scary noises

    Spiny lobsters make alarm and protest sounds by drawing their leathery plectra—protrusions at the base of each anntenna—across scaley ridges below their eyes, much like a violin bow pulling across a string.

  11. Here come mom and dad

    Children in two-parent families spend more time with their mothers and fathers now than they did 20 years ago.

  12. Brains show evolutionary designs

    Mammal species exhibit basic types of brain design from which they have evolved a wide array of brain sizes, according to a new analysis.