Brightsurf Science News & Current Events

July 16, 2002
Nerve cells' death different from other cells'
Writing in the July 12 issue of the journal Science, Hopkins-led researchers say they have identified in neurons a novel form of

Study of cloud ice crystals may improve climate change forecasts
During July in southern Florida, scientists from NASA's Goddard Space Flight Center, Greenbelt, Md. will join others to investigate high tropical cirrus clouds composed of tiny ice crystals.The researchers hope to determine how the clouds form, how they limit the amount of sunlight reaching the surface of the Earth and how they trap heat rising from the surface and lower atmosphere.

U.S. students win gold, silver and bronze at International Chemistry Olympiad
Four of the nation's top high school chemistry students brought home gold, silver and bronze medals for the U.S. in the 34th International Chemistry Olympiad.

Medical texts lack direct messages on alcohol's threat to pregnancy
Despite two decades of consistent warnings from public health authorities that pregnant women should not drink alcoholic beverages, the vast majority of widely used medical textbooks fail to communicate this message unequivocally, a new study reveals.

Cigarette marketing can undermine good parenting
Cigarette advertising and promotions are most likely to lure teens whose parents follow otherwise well-proven methods for discouraging risky behavior, according to a new study.

Study identifies new drug target for preserving brain cells
Doctors know that the body's natural response to injury - inflammation - can do more harm than good when it comes to the brain.

Forecasting jellyfish in Chesapeake Bay
Before planning your next beach outing on Chesapeake Bay, you will of course check the weather forecast, and before long, you may be able to check the jellyfish forecast as well.

Many young Americans risk skin cancer from annual sunburns
The annual sunburn is still a tradition for many Americans, with nearly 60 percent of young adults reporting at least one sunburn in the past year, according to a new study.

Computerized phone chats can motivate couch potatoes
Automated telephone calls may be able to promote behavior change among adults who are not meeting the recommended level of 30 minutes of moderate-intensity exercise on most days, according to a new study.

Other highlights in the July 17 issue of JNCI
Other highlights include a study of a protein detectable in urine that may be a marker for bladder cancer, a study that looks at the effect of DNA repair capacity on lung cancer survival, a study that looks at the ability of insulin-like growth factor-I to predict the development of advanced-stage prostate cancer, and a study that examines the association between the expression of glucose transporter 1 and matrix metalloproteinase-2.

Post-surgery chemotherapy questioned for certain breast cancer patients
Postmenopausal breast cancer patients with estrogen-sensitive tumors who undergo chemotherapy following surgery to increase their survival odds may not benefit from the regimen, according to an international study.

Patent issued to K-State physicists for lighting advance
The U. S. Patent Office has issued Patent No. 6,410,940 (June 25, 2002) to a physics team at Kansas State University for its invention of a micro-size optical element capable of both producing and detecting light.

Texas scientists reach out and touch molecules
A molecule - the smallest bit of any living substance - is no longer out of reach.

Damage from acid rain pollution is far worse than previously believed
Researchers now compare the effects of acid rain to the HIV virus -- it suppresses the equivalent of plants' immune systems.

First of crop killer's genome sequence available
The first draft sequence of a worldwide crop-killing fungus genome has been completed under the joint National Science Foundation (NSF) and U.S.

JAMA article focuses on commercial filming of patients in hospitals
From daytime dramas to television news, the public has long been fascinated by matters of science and health.

Drug wrecks the power plants of cancer cells
Howard Hughes Medical Institute researchers have identified a compound that selectively kills tumor cells by destroying their metabolic power plants.

NREL wins research and development awards
Three technologies developed by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) are among this year's 100 most significant innovations, as judged by Research & Development (R&D) Magazine.

Researchers suggests a potentially damaging effect of extremely low frequency electromagnetic fields
A new study, published in the Cancer Cell International, presents experimental evidence to show that extremely low frequency electro-magnetic fields can have a potentially damaging effect on the process of cell division in (already) radiation-injured cells, which could lead to them becoming cancerous.

Many federal supervisors unaware of disability initiatives
On the 10th anniversary of the Americans with Disabilities Act, a Cornell University researcher finds that many supervisors in federal agencies are unaware of initiatives.

Aspirin's target, the COX-2 enzyme, linked to cancer of the uterus
A researcher at the University of Illinois at Chicago College of Medicine has discovered a link between cancer of the uterus and the COX-2 enzyme, a compound first implicated in the painful inflammation associated with arthritis and more recently in the spread of colon cancer.

UCLA neuroscientists first to show that adult brains turn back developmental clock to repair damage
A new study by UCLA neuroscientists shows for the first time that a unique pattern of cellular activity found in early brain development also triggers repairs to damaged adult brains.

Benefit of adding chemotherapy to tamoxifen for breast cancer
Adjuvant chemotherapy before tamoxifen may improve survival of postmenopausal women with lymph node-negative, estrogen receptor (ER)-negative breast cancers, according to new research in the July 17 issue of the Journal of the National Cancer Institute. However, women with ER-positive breast cancers experienced no improvement from combined therapy with a short course of chemotherapy when compared with tamoxifen alone.

Misclassification of cause of death in cancer patients
The overall cancer mortality rate could increase by about 1% if all deaths within 1 month of cancer-related surgery were correctly attributed to the underlying cancer rather than the surgical procedure, suggests new research appearing in the July 17 issue of the Journal of the National Cancer Institute.

Increased risk of ovarian cancer is linked to estrogen replacement therapy
Researchers from the National Cancer Institute (NCI) have found that women in a large study who used estrogen replacement therapy after menopause were at increased risk for ovarian cancer.
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