Brightsurf Science News & Current Events

August 01, 2002
Investigators use guilt-by-association strategy to track potential cancer causing genes
Fred Hutchinson Cancer Research Center scientists identified 21 potential cancer genes, and as many as 14 of these genes may have not been previously implicated in the development of cancer.

Gene may protect abused kids against behavior problems
New research from the University of Wisconsin-Madison identifies a genetic variation that might protect abused children from developing antisocial behavior.

UCSD study finds women's attitudes can influence drop-out rates among female engineering students
Female engineering students who believe competence in engineering and math is something a person is born with tend to drop out of classes when faced with difficulty, according to a study conducted at the University of California, San Diego (UCSD).

Trust mergers have negative effect on NHS services
The merger of NHS trusts has a negative effect on the delivery of NHS services, causes delays to service improvements and fails to deliver promised cash savings or improve staff recruitment and retention, says a study in this week's BMJ.

UCLA AIDS Institute scientists show antiretroviral drugs can eradicate AIDS epidemic
UCLA AIDS Institute researchers have predicted that widespread use of antiretroviral drugs can eventually stop the HIV epidemic in its tracks - even in African nations where a high percentage of people are infected.

Clemson researchers find bacteria fighter that does not promote bacterial resistance
Health officials fear that lifesaving drugs can lose their effectiveness when overused.

'White coat effect' has adverse effect on blood pressure readings
GPs should not make decisions about treating patients with hypertension based on high readings of blood pressure they have taken, finds a study in this week's BMJ.

Mechanism behind stuttering revealed
Stuttering is caused by a structural abnormality in the left hemisphere of the brain, according to an article in this week's LANCET.

Funding source has impact on conclusions of clinical trials
Author conclusions in clinical trials funded by for profit organisations are more likely to favour experimental intervention than trials funded by not for profit organisations reveals a study in this week's BMJ.

Powerful electron beam generator could combat anthrax
A physics professor's invention to decontaminate industrial wastewater could become a powerful new weapon against anthrax.

Dog collars could prevent parasitic disease in children
Children could be protected from a potentially lethal parasitic disease if dogs were fitted with insecticide-impregnated collars, suggest authors of a study in THE LANCET this week.

How the body copes with fear
Using the model of fear conditioning in mice, researchers from the Max Planck Institute of Psychiatry together with colleagues from Naples demonstrate that the cannabinoid receptor is important in erasing fear behavior.

New genetic screening method predicts behaviour of Wilms' tumour in children
Researchers in this week's issue of The Lancet have developed a new method that can accurately predict how tumours will behave by the genes they express.

Biomarkers of aging news advisory
Three physiological measures associated with long-term caloric restriction in monkeys have been linked to longevity in men, according to scientists at the National Institute on Aging (NIA).

Common treatment for cancer pain stimulates breast tumor growth in mice
Morphine, which is routinely given to cancer patients to manage severe pain, actually stimulates signals in endothelial cells that in turn prompt tumors to grow in mice.

Top-rated NC hospital to 'go live' with third generation MedPoint patient safety system
NorthEast Medical Center is the first in the U.S. to

New device finds silent clots, may help prevent strokes
For the first time, a device has precisely detected tiny blood clots that can enter brain blood vessels during heart surgery, an advance that may help prevent stroke-causing blood clots and memory loss.

Dooley and Gardner named Hartford Doctoral Fellows in geriatric social work
The John A. Hartford Foundation of New York City and The Gerontological Society of America (GSA) have selected two outstanding social work doctoral students for the Hartford Doctoral Fellows Program.

Ecology and conservation of fragmented tropical forests
Panama City, Panama-Today the world's tropical forests are not only being cleared at an extraordinary rate, they are also increasingly being divided into fragments that can rapidly lose their original rich biodiversity.

Hybrid buses operate with lower emissions, greater fuel efficiency
A recently released study by the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) concludes that hybrid buses operate with lower emissions and greater fuel efficiency than conventional diesel buses.

Tropical forests under surveillance
Panama City, Panama--Difficult environmental conditions and complex biological interactions make it tough for tropical biologists to understand animal behavior, climate change effects and highly biodiverse plants and forest organisms.

Solving problems by phone improves well-being of stroke caregivers
Help for caregivers needing to adjust to their new roles - which may also help stroke survivor's health - could be just a phone call away, according to a study published in the August issue of Stroke: Journal of the American Heart Association.

Attention acts as visual glue
The results of a brain mapping experiment provide significant new support for the theory that attention is the glue that cements visual information together as people scan complex visual scenes.

Genes, maltreatment, and the cycle of violence
A paper to be published in Science (A. Caspi et al.,

Disks around failed stars -- A question of age
European astronomers have observed eight Brown Dwarfs, objects also known as

July 2002 Space Launch Initiative Media Update
The Space Launch Initiative's Propulsion Office recently began a study to determine jet engine requirements for a flyback booster to help launch a second generation reusable launch vehicle.

Retroviruses shows that human-specific variety developed when humans, chimps diverged
University of Georgia and National Institutes of Health researchers suggest for the first time that a burst of transpositional activity occurred at the same time humans and chimps are believed to have diverged from a common ancestor 6 million years ago.

One gene, two eye diseases?
Scientists are a step closer to understanding the genetics of macular degeneration, a disease of the retina that affects 13 million Americans, and causes the loss of central vision.

Researchers identify pathway that helps keep weight in check
A study led by researchers at Beth Israel Deaconess Medical Center (BIDMC) offers a new explanation for how the brain makes adjustments to the body's metabolic rate to prevent extra calories from turning into extra pounds.

HRT may prevent endometrial cancer
The long-term use of hormone replacement therapy (HRT) does not increase the risk of endometrial cancer and may even protect the endometrium (the lining of the uterus) from the disease, concludes a study in this week's BMJ.

1918 human influenza epidemic no longer linked to birds
The Smithsonian's National Museum of Natural History historic bird collections was critical in determining that the 1918 influenza pandemic that killed 20 million to 40 million people worldwide did not originate from birds, as previously thought.

U.S. takes first step toward protecting endangered beluga sturgeon
Conservation organizations today applauded the U.S. Fish and Wildlife Service's proposal to list beluga sturgeon - the source of coveted beluga caviar - as an endangered species under the U.S.

Low-carbohydrate, high-protein diets increase risk of kidney stones and may raise bone loss risk
Popular low-carbohydrate, high-protein diets may result in rapid weight loss, but researchers at UT Southwestern Medical Center at Dallas report that they also pose serious health problems, including an increase in the risk of kidney stones and a possible higher risk of bone loss.

Brain tumor therapy needs longer treatment time
In studies the drug BPA, an experimental treatment for high-grade brain tumors, a group at Cornell University has found that the dose currently favored by medical researchers is not high enough to target cancer cells effectively.

Long-term effects of tirofiban similar to abciximab in patients having coronary-artery angioplasty
A follow-up study in this week's issue of THE LANCET helps to clarify the differences between two similar drugs in terms of their benefits for patients who undergo angioplasty for narrowed coronary arteries (the arteries that supply the heart with blood).

Dementia - before or after stroke - increases risk of death
Stroke survivors who have symptoms of dementia before or after a stroke have a significantly greater risk for stroke-related death, according to new research reported in the August issue of Stroke: Journal of the American Heart Association.

New clinical trials explore treatment to restore sexual desire
Investigators at The Research Institute of University Hospitals of Cleveland are studying the efficacy of a hormone patch that may be used to help post-menopausal women who experience a decline in sexual desire.

Australian-American duo shows black holes in collision
For the first time, astronomers have produced a convincing mathematical model that offers the strongest support to date for the idea that the black holes merge when their host galaxies do.

When mistreated children act out later in life: Brain gene may play a role, study says
Variations in a gene that helps regulate several behavior-related brain chemicals may partly explain why some mistreated children later develop antisocial behavior, while others do not, according to an international study.

Want innovative CEO's? Keep looking to young techies
Research and Development spending to generate innovative new products is strongest at corporations whose CEO's are younger, invest heavily in their own firms' stock, and have experience in marketing, engineering, or R&D, according to a study in a journal of the Institute for Operations Research and the Management Sciences (INFORMSĀ®).

Linoleic acid intake may help cut stroke risk
Linoleic acid - found in vegetable oils and soybeans - appears to protect against strokes, researchers report in the August issue of Stroke: Journal of the American Heart Association.

Satellites reveal a mystery of large change in earth's gravity field
Satellite data since 1998 indicates the bulge in the Earth's gravity field at the equator is growing, and scientists think that the ocean may hold the answer to the mystery of how the changes in the trend of Earth's gravity are occurring.

Cognitive hacking warnings
Sometimes what seems to be a respected source of reliable information is actually a clever scheme to manipulate people, suggests Dartmouth Thayer School of Engineering Professor George Cybenko.

Physicists announce latest muon g-2 measurement
Scientists today announced their latest result from a ground-breaking experiment dubbed muon g-2, a precision measurement of the anomalous magnetic moment of the muon.
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