Brightsurf Science News & Current Events

August 22, 2000
Chidren's reactions to violence change as they grow up
Young children view violent events in emotional and dramatic terms, while older children see violence in a more intellectual and detached way, researchers found.

Vitamin D shows promise as cancer prevention drug
Within a decade, a chemically modified version of vitamin D could be used to prevent cancer, researchers reported at the 220th national meeting of the American Chemical Society.

Student research improves properties of rubber
Virginia Tech research has produced a new family of polydienes, which are components of many rubber products.

Protein inhibits colorectal cancer growth
Researchers have discovered a protein that suppresses colorectal cancer in mice and human cell cultures, according to a study in the Aug.

Quick, non-invasive heart scan may be a lifesaver for type 1 diabetics, report University Of Pittsburgh researchers
Type 1 diabetics develop heart disease at over five times the rate of the general population.

Economists question how Federal Reserve decides interest rates
The US Federal Reserve should raise interest rates when stock markets or other asset prices, such as housing prices or exchange rates, rise well above what is warranted by economic fundamentals.

Catch 'em if you can
Fish are starting to wise up to anglers' tricks. A study of trout fishing in New Zealand has shown that fish constantly exposed to anglers soon learn to stay out of sight and avoid falling for the bait the next time.

Researchers identify potential medication for early-onset alcoholism--findings advance search for mechanisms of disease
Investigators at the University of Texas Health Science Center at San Antonio report in the lead article in today's Journal of the American Medical Association (Volume 284, Number 8) that the medication ondansetron may be an effective therapy for patients with early-onset alcohol dependence (alcoholism).

Researchers use water instead of solvent to produce a new acrylic
Virginia Tech researchers have synthesized a novel acrylic blend using water instead of organic solvents.

Structural cues make 'six degrees' phenomenon work
Cornell University computer scientist Jon Kleinberg has proposed an improved mathematical model to explain why we are only

The smallest ever computer chips require a new level of quality assurance
Semi-conductor chip materials have to be transparent to light at low wavelengths.

Tips on hurricane preparedness
When a hurricane threatens the US, there are steps that coastal residents can take to prepare themselves for the storm.

Single amino acid mutation dramatically alters direction of a molecular 'motor'
Researchers from Duke University Medical Center and Tohoku University, Japan, report finding two single amino acid mutations that disrupt the sense of direction in a molecular 'motor,' and creating one for the first time that is equally likely to travel either up or down its track.

Magnetic fluids offer hope for treatment of retinal detachment
Someday silicone magnetic nanoparticles may be used to treat retinal detachment.

Scientists correct genetic illness thalassemia in human blood cells
In experiments that hold strong promise for victims of thalassemia, a genetic illness of the blood afflicting people of the Mediterranean, Middle East and Southeast Asia, scientists have succeeded in restoring production of hemoglobin, the molecule in blood that carries oxygen to tissues.

Calculation provides insight into quantum superconductivity of bizzare particles
A new property of a bizarre particle known as a composite fermion has been calculated by a physicist at Penn State.

Physicians often miss patient communication clues
Physicians are far more likely to miss opportunities to learn more about their patients' psychological and social concerns than to respond positively when patients offered clues to these issues in doctor-patient interactions, University of Chicago Hospitals researchers report in the August 23-30, Journal of the American Medical Association.

Ohio State to host first worldwide biomed/nanotech conference
Hundreds of researchers will converge at Ohio State University for a comprehensive international conference devoted to two growing disciplines that may revolutionize medicine: micro- and nanotechnology.

Geoscientists to gather in Reno for GSA annual meeting
The GSA Annual Meeting, 'Summit 2000,' will be held in Reno, Nevada, November 9-18 at the Reno/Sparks Convention Center.

Dogs have a nose for it
American researchers are unlocking the secrets of a dog's amazing sense of smell to develop an artificial nose for sniffing out landmines.

Personal flying machine
Stuck in the traffic? Just strap on your personal helicopter and fly away.

East meets West: A new memory enhancing drug based on chinese herbal medicine
Huperzine A, a compound isolated from the Chinese Medicinal Herb 'Qian Ceng Ta,' has shown good efficacy in improving the memory in patients suffering from Alzheimer's Disease.

'Decoy' cells attract, disarm viruses before infection occurs
Decoy cells that act like 'molecular flypaper' can attract and disarm viruses that cause disease, researchers reported today at the 220th national meeting of the American Chemical Society.

Midland researcher receives national award
Chemist L.C. 'Bud' Rubens of Midland, Mich., will be honored on August 20 by the world's largest scientific society for his pioneering research in polymer foams, used in energy- saving thermal insulation, packaging materials, and myriad other products.

September Geology and GSA Today highlights
Articles include new information on: the long-standing question of whether dinosaurs were cold blooded or warm blooded; Earth's oldest tidal record and its relationship to the impact model of the origin of the Moon; quantitative history of human impacts on geomorphology; and the Cambrian substrate revolution and its impact on early animal evolution.

Hormone therapy doesn't slow heart disease, despite improvements in cholesterol
In the full report of a major study of hormone replacement therapy (HRT) and heart disease, researchers from Wake Forest University Baptist Medical Center write in this week's New England Journal of Medicine that the treatment didn't slow the progression of heart disease in older women, despite improvements in cholesterol levels.

Drugs made from polymers, the stuff of plastics
A potentially safer, more potent form of aspirin -- made from the same polymers that are the stuff of plastics -- was described at the 220th national meeting of the American Chemical Society.

Purdue 'microspheres' offer promise for oral drug delivery
Chemical engineers at Purdue University have created a new class of non-toxic materials that might be used to deliver medicines orally instead of by injection, and they will discuss their findings on Aug.

Online instructional materials offered
Instructors wishing to incorporate interactive demonstrations in their classrooms will soon be able to retrieve high quality, peer-reviewed learning materials from the Web. 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