Search Content | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.

Search Content

E.g., 06/23/2017
E.g., 06/23/2017
Your search has returned 83 articles:
  • Science & the Public

    Coffee perks up memory and balance in geriatric animals

    CHICAGO Millions of Americans start their day with a cup of coffee and then reach for refills when their energy or attention flags. But new research in rats suggests that for the aging brain, coffee may serve as more than a mere stimulant. It can boost memory and the signaling essential to motor coordination.

    But here's the rub: If the same effects hold for humans, downing a morning...

    07/22/2010 - 16:11 Body & Brain, Chemistry, Nutrition, Humans & Society
  • Feature

    Back from the Dead?

    In December 1938, Marjorie Courtney-Latimer, curator of a natural history museum in East London, South Africa, went to the docks to look for interesting specimens among the day's catch. What she found one day she later described as "the most beautiful fish I had ever seen ... a pale mauve blue with iridescent silver markings." The discovery sent scientists into a frenzy.

    ...

    11/13/2007 - 11:15 Paleontology
  • Food for Thought

    Troubling Meaty 'Estrogen'

    Women take note. Researchers find that a chemical that forms in overcooked meat, especially charred portions, is a potent mimic of estrogen, the primary female sex hormone. That's anything but appetizing, since studies have linked a higher lifetime cumulative exposure to estrogen in women with an elevated risk of breast cancer.

    Indeed, the new finding offers a "biologically...

    10/17/2007 - 01:38 Nutrition
  • News

    Tea compound aids dying brain cells

    From Washington, D.C., at the Fourth International Scientific Symposium on Tea and Human Health

    A constituent of green tea can revive moribund brain cells, Israeli researchers report. The team experimented with animal neurons that had been chemically poisoned to model the death of dopamine-producing cells in Parkinson's disease.

    In a test-tube study, low doses of epigallocatechin...

    09/26/2007 - 12:04 Biomedicine
  • News

    Drug Overflow: Pharmaceutical factories foul waters in India

    Pharmaceuticals ranging from painkillers to synthetic estrogens can harm aquatic life when they enter waterways through human excreta, hospital and household waste, and agricultural runoff. Now, researchers have shown that there's another way for such drugs to get into the environment: A treatment plant in India that processes wastewater from pharmaceutical manufacturers discharges highly...

    08/08/2007 - 16:25 Earth & Environment
  • News

    Stunting Growth: Ozone will trim plants' carbon-storing power

    Increases in low-altitude ozone predicted for the upcoming century will stifle the growth of vegetation in many regions, causing planet-warming carbon dioxide to build up in Earth's atmosphere more quickly than had been expected, a new model suggests.

    Low-altitude ozone—as opposed to the planet-protecting layer of the gas in the stratosphere—forms when the sun's ultraviolet...

    07/25/2007 - 12:49 Earth
  • News

    Universities seek armchair astronomers

    Nonscientists and researchers alike have a chance to see something no one else ever has—a few of the million far-off galaxies that the Sloan Digital Sky Survey has recently photographed. The price of admission: People viewing the new images online must do a little work for the astronomers in charge, classifying individual galaxies as either spiral armed or elliptical collections of stars....

    07/23/2007 - 14:59 Humans & Society
  • Food for Thought

    Sour Genes, Yes—Salty Genes, No

    Some people abhor broccoli, complaining about its intensely bitter taste. Others (myself included) find broccoli's flavor interesting and pleasing—decidedly, not bitter. What leads to our differing culinary opinions is the possession of, or lack of, (in my case, evidently) genes conferring a super sensitivity to bitter taste. Science has recognized such genetic differences for at least a...

    07/18/2007 - 09:52 Science & Society
  • News

    Gene dispensers

    From Chicago, at the American Chemical Society Meeting

    Researchers have developed a new means for transferring genes to treat diseases. The gene therapy method relies on a nanoscale architecture with many alternating layers of polyester and DNA. Once this material is inside the body, water degrades the polyester layer by layer, for a slow, controlled release of genetic material to...

    04/10/2007 - 15:16 Chemistry
  • News

    Orexin-blocking pill speeds sleep onset

    A new compound that inhibits the activity of alertness-promoting brain peptides called orexins shows promise as a sleeping pill, according to tests in people and animals.

    Men who took the drug fell asleep more quickly than did men who took a placebo, neurobiologist François Jenck of Actelion Pharmaceuticals in Allschwil, Switzerland, and his collaborators report in the February Nature...

    02/13/2007 - 10:59 Biomedicine