Vol. 159 No. #15
Archive Issues Modal Example

More Stories from the April 14, 2001 issue

  1. Astronomy

    Probes find a new plume on Io

    Two spacecraft jointly eyeing Jupiter's moon Io, the most volcanically active body in the solar system, have spotted a towering new plume.

  2. Astronomy

    Searching for a lost craft

    A recent Department of Defense analysis of images of the Red Planet may have located a lost spacecraft on Mars, but NASA says the images could just be electronic noise.

  3. Looking for osteoporosis in spit

    A dentist has found three compounds in saliva that could be used to gauge bone loss.

  4. Gene therapy won’t replace Viagra—yet

    Scientists are making progress toward inserting genes to cure impotence temporarily.

  5. Chemistry

    Would you like wheat with that burger?

    Researchers have used wheat to make a biodegradable hamburger carton.

  6. Chemistry

    Leaden news for city neighborhoods

    Researchers have identified more than 400 urban sites that may be highly contaminated with lead but had remained unknown to authorities for decades.

  7. Health & Medicine

    Boosting Boron Could Be Healthful

    Largely ignored so far, dietary boron may play important roles in preventing diseases such as arthritis and prostate cancer.

  8. Viruses may play a part in schizophrenia

    Scientists have for the first time linked high levels of retroviral activity in the central nervous system to some cases of schizophrenia, a severe mental disorder.

  9. Archaeology

    Ancient ash flow brought sudden death

    Analysis of the excavation in Herculaneum of the victims of the A.D. 79 eruption of Italy's Mount Vesuvius indicates that when the initial ash flow swept through the city, it arrived so quickly that some residents didn't even have time to flinch.

  10. Health & Medicine

    Infections tied to head and neck cancers

    Infections from human papillomavirus (HPV) may increase the risk of certain cancers of the head and neck, especially of the tonsils.

  11. Chemistry

    Liver cells thrive on novel silicon chips

    Researchers have coaxed finicky liver cells to grow on porous silicon chips, a feat that could lead to new medical treatments.

  12. Lifestyles of the bright and toxic overlap

    The first study of home life for Madagascar's poison frogs in the wild finds a striking resemblance to a group that's not closely related, the poison-dart frogs in the Americas.

  13. Humans

    Biomedicine, defense to sidestep budget ax

    President Bush's first budget request would boost funding for biomedical and military research but trim federal outlays for other areas of science and technology.

  14. Anthropology

    Our family tree does the splits…

    Large-scale changes in climate and habitats may have sparked the evolution of many new animal species in Africa beginning 7 million to 5 million years ago, including a string of new species in the human evolutionary family.

  15. Anthropology

    . . . and then takes some lumps

    The skeletal diversity that many scientists use to divide up fossil species in our evolutionary past masks a genetic unity that actually encompassed relatively few species, contend researchers in an opposing camp.

  16. Health & Medicine

    Fatty Findings

    A recently discovered protein may explain at least part of the molecular mechanisms behind links among obesity, diabetes, heart disease, and even some cancers.

  17. Tech

    Oceans of Electricity

    The world's first commercial wave-power plant began pumping current into a Scottish island's electric grid last winter, just ahead of a host of competing schemes for converting ocean-wave motion into electricity.