Vol. 164 No. #1
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More Stories from the July 5, 2003 issue

  1. Physics

    Wild Bunch: First five-quark particle turns up

    Physicists have uncovered strong evidence for a family of five-quark particles after decades of finding no subatomic particles with more than three of the fundamental building blocks known as quarks.

  2. A Matter of Taste: Mutated fruit flies bypass the salt

    By creating mutant fruit flies with an impaired capacity to taste salt, researchers have identified several genes that contribute to this sensory system in insects.

  3. Health & Medicine

    Lethal Emergence: Tracing the rise of dengue fever in the Americas

    Using the genetics of viruses, scientists have tracked a virulent form of dengue virus in Latin America back to its roots in India.

  4. Animals

    Moonlighting: Beetles navigate by lunar polarity

    A south African dung beetle is the first animal found to align its path by detecting the polarization of moonlight.

  5. Till IL-6 Do Us Part: Elderly caregivers show harmful immune effect

    Elderly people caring for their incapacitated spouses experienced dramatic average increases in the blood concentration of a protein involved in immune regulation, a trend that puts them at risk for a variety of serious illnesses.

  6. Earth

    Suspended Drugs: Antibiotics fed to animals drift in air

    Borne on dust floating in and around farm buildings, antibiotics given to animals may later be inhaled by people—with possibly detrimental health effects.

  7. Astronomy

    Timing a Moonrise: Van Gogh painting put on the calendar

    Astronomical detectives suggest that van Gogh painted the picture now known as "Moonrise" in 1889, capturing the rising moon as it appeared at 9:08 p.m. local mean time on July 13.

  8. Earth

    Second cancer type linked to shift work

    Women who have worked at least a few nights a month for many years appear to face a somewhat increased risk of colorectal cancer.

  9. Earth

    Satellites show Earth is greener

    Daily observations from space for nearly 2 decades indicate that our planet is getting greener.

  10. Animals

    Sumo wrestling keeps big ants in line

    In a Malaysian ant species, the large workers establish a hierarchy by engaging in spectacular shaking contests.

  11. Physics

    Monitoring radiation with Britney Spears?

    Compact disks can serve as home radon detectors.

  12. Physics

    Magnetic current flows solo

    By exploiting quantum mechanical interactions, physicists have generated glows of the magnetic fields of electrons without corresponding flows of their electric charges.

  13. Humans

    Tobacco treaty penned

    Just one day after the World Health Organization drafted a tobacco-control treaty, more than 28 nations signed on.

  14. Health & Medicine

    Strict regimen pays off years later

    Diabetes patients who adhered to a strict program of blood sugar control over nearly 7 years starting in the 1980s are still showing heart benefits.

  15. Health & Medicine

    Epilepsy drug eases diabetes woes

    The epilepsy drug topiramate relieves pain, seems to initiate nerve repair, aids weight loss, and may have other benefits for persons with diabetes.

  16. Materials Science

    Microbial Materials

    Microorganisms can be coaxed into producing high-tech components and can themselves serve as valuable ingredients in new classes of materials.

  17. Anthropology

    The Ultimate Colonists

    Human ancestors managed to adjust to life in a variety of ecosystems during the Stone Age, indicating that their social lives were more complex than they've often been given credit for.