Search Content | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.

Search Content

E.g., 04/23/2017
E.g., 04/23/2017
Your search has returned 32 articles:
  • News

    Cholesterol boosts diesel toxicity

    Cholesterol poses a cardiovascular risk once it becomes transformed into an inflammatory building block of artery-clogging plaque. That process, which happens all the time, is triggered by oxidation. A new study finds that breathing nanoscale particles spewed by diesel-fuel combustion—also a common occurrence—may turn on genes that multiply cholesterol's inflammatory and atherosclerotic risks...

    08/08/2007 - 09:53 Earth & Environment
  • 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

    Too Few Jaws: Shark declines let rays overgraze scallops

    A shortage of big sharks along the U.S. East Coast is letting their prey flourish, and that prey is going hog wild, demolishing bay scallop populations.

    That's the conclusion of researchers led by the late Ransom Myers of Dalhousie University in Halifax, Nova Scotia, who died this week. Combining census surveys from the past 35 years, Myers' team found shrinking...

    03/28/2007 - 11:47 Animals
  • Feature

    What a Flake

    With a camera-equipped microscope of his own making, Kenneth G. Libbrecht shoots some of the world's most stunning photographs of snowflakes. Since October, four of the physicist's images have adorned U.S. postage stamps. Each stamp displays an exquisitely intricate, burst-shaped crystal that, because of the photographer's distinctive lighting, glows like polished metal.

    ...
    12/18/2006 - 16:50 Computing
  • News

    Are pollutants shrinking polar bear gonads?

    The more polluted a polar bear's fat, the more likely its reproductive organs will be undersize, scientists find.

    They collected gonads from 55 male and 44 female bears killed legally by subsistence hunters in east Greenland. The scientists then tested the bears' fat for pollutants that might affect sex hormones.

    Especially in immature males, testis length diminished with...

    09/05/2006 - 00:59 Earth & Environment
  • Food for Thought

    Juice May Slow Prostate Cancer Growth (with recipe)

    Prostate cancer will claim the lives of an estimated 30,000 men in the United States this year. The second leading cause of cancer death in men, its incidence climbs with age. In Western countries, the disease is reaching nearly epidemic proportions among the elderly. However, the cancer can grow so slowly that many men with prostate cancer will die of something else first.

    ...
    08/10/2006 - 13:46 Nutrition
  • News

    Fish as Farmers: Reef residents tend an algal crop

    A damselfish cultivates underwater gardens of an algal species that researchers haven't found growing on its own.

    The special alga could be the fishy version of people's domesticated crops, says Hiroki Hata of Kyoto University in Japan. Growth tests of the alga, surveys of its distribution, and genetic analyses support that idea, he and Makoto Kato say in an upcoming Biology...

    08/09/2006 - 12:05 Ecology
  • News

    Social jet lag: Need a smoke?

    From Munich, at the Euroscience Open Forum meeting

    People who have a hard time waking in the morning because their bodies' internal clocks are out of sync with their sleep schedules are said to have "social jet lag." Researchers in Europe have determined that the phenomenon strongly correlates with smoking.

    Battling one's biological clock can leave people weary in the same way as...

    08/01/2006 - 12:19 Other
  • News

    Jay Watch: Birds get sneakier when spies lurk

    In the thief-ridden world of western scrub jays, a bird storing food takes note of any other jay that watches it and later defends the hoard accordingly, says a new study.

    A difference in hiding tactics showed up in lab tests where birds cached some of their favorite food in ice cube trays filled with pellets, says Nicola Clayton of the University of Cambridge in England. When...

    05/17/2006 - 08:35 Animals
  • News

    Dementia off the Menu: Mediterranean diet tied to low Alzheimer's risk

    People who eat a Mediterranean-style diet are less likely than their peers to develop Alzheimer's disease, according to new research on elderly Manhattan residents. The study is the first to link brain benefits to a comprehensive dietary pattern rather than to individual foods or nutrients, say the scientists who performed the research.

    Traditional Mediterranean menus are rich in...

    04/18/2006 - 22:06 Biomedicine