Vol. 171 No. #24
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More Stories from the June 16, 2007 issue

  1. Mental letdown for antipsychotic meds

    People with chronic schizophrenia get surprisingly modest improvements in memory and learning from new as well as old antipsychotic medications.

  2. Health & Medicine

    Nutrients linked to brain lesions

    The more calcium and vitamin D elderly individuals consume, the greater the number and size of lesions that show up in their brains.

  3. Health & Medicine

    Right combination of malaria drugs?

    Children in Uganda who contract malaria recover faster with a drug based on artemisinin, derived from Chinese wormwood, than with a longstanding medical remedy.

  4. Earth

    Age and gender affect soot’s toxic impact

    Except in young females, small blood vessels in rodents lost the ability to precisely regulate blood flow after exposure to an oily constituent of diesel soot.

  5. Earth

    Dust Bowl affected midwestern climate

    During the Dust Bowl of the 1930s, immense clouds of airborne soil blocked so much sunlight that much of the Great Plains region was significantly cooler than normal during summer months.

  6. Earth

    Darker days during Arctic summer

    Satellite observations indicate that Arctic regions reflected less sunlight into space in the summer of 2006 than in other recent years, a change that may exacerbate the warming of Earth's climate.

  7. How sea turtle hatchlings know where to crawl

    Newly hatched sea turtles use a variety of senses, not just sight, to find their way to the ocean.

  8. Earth

    Trouble for forests of the northern U.S. Rockies?

    Climate change over the coming decades may cause forests in northern portions of the U.S. Rockies to stop absorbing carbon dioxide from the atmosphere and instead become net emitters of the gas.

  9. Paleontology

    Big and Birdlike: Chinese dinosaur was 3.5 meters tall

    Paleontologists have unearthed the remains of a gigantic birdlike dinosaur, 3.5 meters tall, that lived 70 million years ago in what is now China.

  10. Breast Cancer Lead: Overactive gene is linked to disease

    A mutated gene that's overly active in breast cancer cells could offer a new target for cancer drugs.

  11. Plants

    Easy There, Bro: A plant can spot and favor close kin

    A little beach plant can recognize its siblings as long as their roots grow in nearby soil.

  12. Tech

    Improbability Drive: Focus on rare actions speeds chemical simulations

    A new algorithm speeds simulations of chemical reactions by focusing on rare but crucial molecular motions.

  13. Health & Medicine

    Vaccine Harvest: Cholera fighter could be easy to swallow

    An edible vaccine, made by genetically engineering rice, safeguards mice against the toxin produced by cholera bacteria.

  14. Planetary Science

    Shifting Ocean: Tipsy Mars may explain undulating shoreline

    Evidence that Mars once had a vast ocean gains support from a proposal that the planet was tipped halfway over on its side several billion years ago.

  15. Borderline Aid: Psychotherapy soothes personality ailment

    Three forms of psychotherapy each provide substantial relief from symptoms of borderline personality disorder.

  16. Brain Gain

    The brain constantly sprouts new neurons, a recently discovered phenomenon that neuroscientists and drugmakers are working to understand and harness.

  17. Earth

    Wildfire, Walleyes, and Wine

    An international panel's latest report on the impacts of climate change highlights an overlooked need: preparing for droughts, floods, heat waves, and other disasters.

  18. Humans

    Letters from the June 16, 2007, issue of Science News

    Bigger picture Reading “Pictures Posing Questions: The next steps in photography could blur reality” (SN: 4/7/07, p. 216), I was struck by the similarity between the image that used a cone-shaped mirror and the images you get from gravitational lensing. As the same data are available in both types of images, it ought to be […]