Brightsurf Science News & Current Events

November 28, 2001
Post-transcriptional regulation of COX2 in tumor cells
Prostaglandins apparently not only drive the initial formation of certain pre-cancerous lesions, but also support the development of blood vessels that permit tumor growth and the phenotypic changes that result in metastasis.

Imaging studies illuminate competition between brain systems
What areas of the brain are activated during the process of learning and how does the pattern of activation change as learning proceeds?

Study proves flu shot safe for asthmatics
Though many asthmatics have feared the flu shot triggers attacks, a study conducted at 19 American Lung Association (ALA) Asthma Clinical Research Centers (ACRC) nationwide and published in the Nov.

Virginia Tech's Seiler receives USDA teaching award
John Seiler, professor of forestry at Virginia Tech, has received the United States Department of Agriculture Food and Agriculture Sciences' Excellence in Teaching award.

Air pollution causes lung disease in school-age children
Children who grow up breathing polluted air may be at increased risk of lung disease, according to a study of school-age children.

A very massive stellar black hole in the Milky Way Galaxy
Using the ISAAC instrument on the VLT 8.2-m ANTU telescope at the ESO Paranal Observatory, an international team of astronomers has probed the binary system GRS 1915+105.

Medical school applicants should be screened for personality disorders to prevent ethical disasters
Medical schools should screen applicants for personality disorders before granting them entry, finds a study in the Journal of Medical Ethics.

Treatment reduces risk of heart attack by 60 to 90 percent, reverses arterial plaque buildup; antioxidant vitamins diminish beneficial effect
Treatment with a combination of statin and niacin can slash the risk of a fatal or non-fatal heart attack or hospitalization for chest pain by 70 percent among patients who are likely to suffer heart attacks and/or death from coronary heart disease.

Transgenic DNA discovered in native Mexican corn, according to a new study by UC Berkeley researchers
Some of Mexico's native varieties of corn grown in remote regions have been contaminated by transgenic DNA, a finding that has both surprised and dismayed the UC Berkeley researchers who made the discovery.

Stanford engineer studies neural prosthetics
Reaching out to touch a dot on a computer screen may seem simple, but it requires a complex chain of signals that link together the eye, brain and arm.

New Biofilm Research Center will explore the wonderful world of slime
Whether it's the disgusting yellow film coating your teeth or the slippery crud clogging your kitchen sink, slime is something most of us want to eliminate, not cultivate.

New study: Treating depression, low social supports does not reduce heart patients' deaths, heart attacks
Treating depressed patients -- or those who lack the social support provided by family and friends -- with counseling and possibly psychotropic drugs soon after a heart attack apparently doesn't lower their risk of death or of having another attack.

Phenotypic variability in cystic fibrosis
Cystic fibrosis (CF) is among the best studied and most common autosomal recessive disorders.

Radio frequency energy zaps tumors without surgery
A non-surgical approach to treating kidney cancer uses radio frequency waves to heat and successfully destroy tumors.

MIT scientist unveils device to convert excess heat into electricity
An MIT scientist and a colleague have invented a semiconductor technology that could allow efficient, affordable production of electricity from a variety of energy sources--including waste heat--without a turbine or similar generator.

Study in Nature provides startling new evidence of declines in global fisheries since late '80's
Contrary to the statistics published by the Food and Agricultural Organization of the United Nations (FAO), which indicate that the global fisheries catch is stable, leading fisheries scientists reveal that catches have actually been declining for over a decade.

Researchers find that vitamins may prevent repeat blockage of the coronary artery
UCSD School of Medicine cardiologists, in conjunction with the Swiss Cardiovascular Center, have found that vitamins that cost only pennies prevent repeat blockage of the coronary artery after angioplasty.

Risk of injury high among young goalies using adult sized soccer balls
Eager young goalies run a significant risk of wrist fracture, trying to make

Two thirds of the world's blind are women
Almost two thirds of the world's blind are women, finds an analysis of published research on global blindness in the British Journal of Ophthalmology.

Optimizing antiviral peptide vaccines
Costimulatory receptors on T cell surface modulate the signaling pathways that activate lymphocytes against specific antigens, often with profound effects on the ultimate host response.

Healy researchers make a series of striking discoveries about Arctic Ocean
Contrary to their expectations, scientists on a research cruise to the Arctic Ocean have found evidence that the Gakkel Ridge, the world's slowest spreading mid-ocean ridge, may be very volcanically active.

Superconductors that work at room temperature
American researchers may have found the first superconductors to work at room temperature.

Poor or immobile elderly may not eat well this holiday
Many elderly persons don't get enough to eat because of functional impairments or a lack of resources.

Adolescents exposed to violence suffer post traumatic stress and depression
Adolescents who either witness or are victims of violence are prone to post traumatic stress disorder and depression, finds research in Injury Prevention.

Black holes in the neighbourhood
Short gamma-ray bursts identified by astronomers in America could be the detonation of microscopic black holes in our own cosmic backyard.

Adults look for intended meanings in messages, kids interpret them literally
When researchers here asked children and adults a series of ridiculously simple questions about the senses, they discovered something unexpected: the children scored higher than the adults. earns top grades from three judging panels; Site recognized for innovation, content and usability
Three independent judging panels have recently given the health information Web site high marks for innovation, content and ease of navigation.

Women who drink moderately do not face a longer wait to become pregnant
Women who regularly drink a moderate amount of alcohol while trying to conceive do not have to wait longer than teetotallers to become pregnant, according to new research published in Europe's leading reproductive medicine journal, Human Reproduction.

New computer program detects overlooked gene segments: Previous estimates of human gene number too low
Although conventional computer programs for analyzing DNA detect many parts of genes with ease, they fail when it comes to detecting the very first pieces of genes, and the nearby

Remedies to bone loss in space may benefit Earth patients first
Spinal cord injury patients may be the first to benefit from studies to reduce bone loss in astronauts on long missions. 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