Brightsurf Science News & Current Events

April 01, 2002
Marijuana's impact on intelligence
Peter Fried and colleagues report that light and former use of marijuana does not appear to have a long-term effect on intelligence, while heavy use appears to be detrimental.

Osteoarthritis and genetic link
Findings based on hand radiographs point to regions of chromosomes associated with this common disease.

Society for Women's Health Research sponsors 3rd Annual Conference on sex and gene expression
The Society for Women's Health Research will be sponsoring the third annual Conference on Sex and Gene Expression (SAGE III) from April 4-7, 2002, in San Jose, CA.

Scientists trace recently found genes to the evolution of big brains
Dana-Farber Cancer Institute researchers have found that a pair of recently discovered genes enables the brain of vertebrate animals, including humans, to grow large and complex.

Asymmetrical birds may soon be at-risk
If conservationists could foretell the future, they'd want to know which animal populations are about to decline.

Immune system turned off during hibernation in squirrels
Ground squirrels' immune system essentially quits when the animals hibernate each winter, researchers report.

Scientist at Robarts Research Institute among Canada's Top 20
Dr. Ravi Menon -- a biophysicist at Robarts Research Institute in London, Ont.

Under one roof: The risks associated with living in three-generation households
Although grandmothers are an important source of support for young mothers, a new study from the University of Maryland School of Medicine finds that preschool children living in three-generation households (with an adolescent mother and a grandmother) do not have fewer behavioral and developmental problems than other preschool children.

The Lancet Oncology and The Lancet Infectious Diseases
This press release highlights articles published in The Lancet Oncology and The Lancet Infectious Diseases.

Preventing HIV infection in newborns
Although all pregnant women in Canada are supposed to be offered voluntary HIV testing to allow treatment and possible prevention of transmission to the baby, cases are still missed.

Human Factors/Ergonomics contributes to combating terrorism
The Winter ERGONOMICS IN DESIGN describes human factors/ergonomics work that has contributed to improved commercial aviation, Special Forces training, and intelligence analysis.

Annals of Internal Medicine, tip sheet, April 2, 2002
Issue highlights include studies that indicate that regular exercise lowers blood pressure in all groups of people; blood protein is linked to heart disease risk; and high-fat meals increase triglyceride levels and reduce blood flow.

UCLA scientists discover African strain of AIDS in two American infants
UCLA AIDS Institute researchers discovered that African strains of HIV infected two American infants as early as 1994.

Mexican reserves fail to protect monarch butterflies
Despite decades of legal protection, the billion or so monarch butterflies that overwinter in Mexico are losing the cloudbelt forests they depend on.

Progress in the genetics of autism
Autism is a devastating disorder of unknown cause. Four articles in the current issue of Molecular Psychiatry report recent findings in the genetics of autism.

Analyses of Violence Against Women Act suggest legislation saved US $14.8 billion
Cost-benefit analyses of the Violence Against Women Act of 1994 suggest the legislation, which provided $1.6 billion for various prevention programs over five years, saved $14.8 billion in net social costs that otherwise would have been incurred.

International rice genome project progressing ahead of schedule
In the two years since Monsanto Company made its rice genome data available to the global research community, the timetable for completing the rice genome has accelerated by six years.

Scientists find they can tap gene-silencing process to reveal parts of genetic machinery
Now, scientists at the University of North Carolina at Chapel Hill have discovered that RNAi itself can be exploited to rapidly identify parts of the machinery that make RNAi work.

HIV infection among female injection drug users
Dr. Martin Schechter and colleagues warn that HIV incidence is on the rise among female injection drug users (IDUs) in Vancouver and that the increase is being driven by factors different from those found in males.

New tool helps automakers silence irritating whistle noise
Ohio State University engineers are helping automakers deliver a quieter ride, by reducing whistle noise in the engine's air intake and exhaust systems.

New study of coated stent - long-term results disappointing
A new drug-eluting stent - a tiny spring device coated with medicine that keeps blood vessels from reblocking after angioplasty - may have a problem holding up over time, say researchers in today's rapid access publication of Circulation: Journal of the American Heart Association.

Ambushing prey may make snakes vulnerable
Some species die out after their habitat is disturbed while others continue to thrive -- the big question is why?

Study reveals benefits of lay health advisers in boosting mammography
Women with leadership qualities who dispensed health information in local communities without pay succeeded in boosting the number of older black women in eastern North Carolina who underwent mammography by 6 percent, a new study concludes.

Rock climbing harms cliff ecosystems
While it stands to reason that rock climbers might harm habitats such as the ancient, stunted forests that grow on cliffs around the world, there has been little unambiguous evidence that this is so.

New web searching trends: Sex is out, e-commerce is in
People are looking less for sexually oriented material on the Web and more for business information, a new Penn State-led study says.

Traditional floodplain forest restoration may decrease bird diversity
There may be a problem with lower Mississippi floodplain forests that have been replanted with common oaks.

New method used to transfer genes into mouse
For the first time, a special segment of DNA called a transposon and an enzyme known as the Sleeping Beauty transposase have been used to genetically modify a vertebrate animal.

Labor-inducing folklore alive and well among pregnant women
In spite of an avalanche of modern medical advances in obstetrics, old wives' tales about pregnancy and labor still run rampant, especially tales on how to get labor going as the due date nears.

Edmund Pellegrino, MD, to receive award recognizing service, devotion to Catholic ideals
Edmund Pellegrino, MD, John Carroll Professor of Medicine and Medical Ethics at Georgetown University Medical Center's Center for Clinical Bioethics, will be honored by the EPS Foundation for his lifelong devotion to compassion and medical ethics.

Patch delivers longer, deeper relief from dental pain
A small adhesive patch promises relief from dental pain up to 45 times longer than topical anesthetic gel, a new study suggests.

University of Pittsburgh discovers gene mutation responsible for hereditary gingival fibromatosis
A mutation in a gene that signals for cellular growth is responsible for the rare hereditary disease that causes the gums to grow over the teeth. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to