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Your search has returned 17 articles:
  • News

    Monsoon Warning: Data hint at wet and blustery future

    Asian monsoons have been intensifying over the last 400 years, and they're slated to get worse, a team of earth scientists says. Stronger monsoon rains could cause severe flooding and erosion that would affect up to half the world's population.

    The South Asian monsoon carries much-needed rain to billions of people in India, China, Bangladesh, and other countries. The monsoon...

    07/24/2002 - 10:35 Earth
  • News

    For Failing Hearts: Gene therapy stops decline in animals

    Tests in hamsters have raised hopes for creating a gene therapy to stop the common downward spiral of chronic heart failure.

    What distinguishes the proposed treatment is a novel version of a calcium-regulating gene plus an improved way of getting that gene into heart cells, says Kenneth Chien of the University of California, San Diego. In a laboratory breed of hamsters that commonly...

    07/24/2002 - 10:30 Biomedicine
  • News

    Mimicking the Best of Nature's Binders: New technique produces artificial receptors

    In yet another stab at mimicking nature's chemical innovations, scientists have devised a new way to make artificial receptors that differentiate among similar molecules.

    Chemists have long admired how precisely antibodies select specific chemicals in complex biological brews. This trait has rendered antibodies useful for a broad range of laboratory experiments and medical...

    07/24/2002 - 10:16 Chemistry
  • News

    Staying Alive with Attitude: Beliefs about aging sway seniors' survival

    Small-town America has a life-enhancing lesson for people who are at least 50 years old: Individuals, those in the heartland's middle class, anyway, who have a positive outlook about aging live around 7 years longer than those who take a dim view of their prospects as seniors.

    "People who have positive views about themselves as they age somehow cope with society's negative attitudes...

    07/24/2002 - 09:59
  • News

    A Stinging Forecast: Model predicts chance of encountering jellyfish

    Weather forecasters usually prognosticate precipitation, pollen, and poor air quality. Soon, in some areas, they could provide beachgoers with the probability of confronting a jellyfish.

    True to its common name, the East Coast sea nettle, Chrysaora quinquecirrha, lives along the United States' eastern shore and plagues swimmers with painful welts. Although the creature's...

    07/24/2002 - 09:43 Earth
  • News

    Moveable Feast: Milky Way dines on its neighbors

    Astronomers have found new evidence that the Milky Way is a cannibal, devouring streams of stars from its nearest galactic neighbors. The finding lends further support to the idea that instead of forming wholesale, our galaxy grew bit by bit and is even today snaring matter from other galaxies (SN: 4/22/00, p. 261).

    The study also raises questions about how and when globular clusters,...

    07/24/2002 - 09:28 Astronomy
  • News

    Bone Crushers: Teeth reveal changing times in the Pleistocene

    Many carnivores enjoy a good piece of meat, a slab of fat, a liver, perhaps a kidney from a fresh kill, but they tend to leave the bones behind. When the pickings are slim, however, they'll chomp the bones and suck out the marrow, a practice that can break the diner's teeth.

    Tooth-fracture incidence among carnivores in the fossil record can indicate how much bone the animals...

    07/24/2002 - 09:04 Paleontology
  • News

    Law and Disorder: Chance fluctuations can rule the nanorealm

    Whether it's the gasoline-to-motion transformation of automobiles or the electricity-to-cooling action of refrigerators, all processes squander energy. They vent that waste in the form of heat. It's a law of thermodynamics, and no one has ever witnessed a sustained violation of it.

    On the minute scales of cells and molecules, however, brief reversals of the usual rules routinely occur....

    07/24/2002 - 08:42 Physics
  • News

    Heart damage tied to immune reaction

    Researchers in Brazil have identified immune proteins that flood the heart tissues of many people with Chagas' disease, suggesting a cause of this deadly complication of the parasitic tropical disease. The malady afflicts 18 million people in South and Central America, placing millions at risk of heart failure.

    The researchers examined heart tissues from autopsies of 29 people who had...

    07/22/2002 - 22:27 Biomedicine
  • News

    Pluto or bust?

    A new National Research Council report may revive plans to send a spacecraft to explore Pluto and its neighborhood. Even though NASA eliminated funding for it in its 2003 budget, the report recommends that the agency give top priority to a major Pluto mission. The Washington, D.C.–based council issued the NASA-sponsored study on July 11.

    Pluto is the only planet in the solar system that...

    07/22/2002 - 22:04 Astronomy