Brightsurf Science News & Current Events

January 29, 2001
UC Berkeley archaeologist finds Arizona's ancient Hohokam was complex, advanced culture that may have reached the West Coast
New research by UC Berkeley archaeologist Steven Shackley suggests that the Hohokam, who inhabited the dry Sonoran desert of southern Arizona more than 700 years ago, managed a very large, multiethnic network that may have spread all the way to the Southern California coast.

A persimmon a day could be better for your heart than an apple
Persimmons are better than apples at reducing the risk of heart disease, according to a study in the Journal of Agricultural and Food Chemistry.

Exercise benefits patients being treated for early stage breast cancer
Contrary to traditional advice that rest is the best medicine for fatigue caused by breast cancer treatment, the largest study of its kind found that exercise improves physical functioning and weight control for many patients receiving chemotherapy, hormonal treatments or radiation therapy.

Study shows patients with good periodontal health breathe easier
New research confirms findings that periodontal disease may increase a person's risk for the respiratory disorder Chronic Obstructive Pulmonary Disease (COPD), the sixth leading cause of mortality in the United States.

UCSD researchers identify gene linked to lupus-like disease in mice
Researchers at the University of California, San Diego School of Medicine have identified a gene in mice that causes an autoimmune disease remarkably similiar to human systemic lupus erythematous (SLE, or lupus), an incurable ad potentially fatal multi-organ disease that turns victims' immune systems against them.

Job outlook brightens for earth science graduates
Nearly two-thirds of 1999 Ph.D. recipients in earth and space sciences took permanent jobs upon graduation, a sharp increase from 1998.

American Chemical Society celebrates Black History Month with salute to Samuel P. Massie
The first African-American professor at the U.S. Naval Academy, Massie was one of three African-Americans - along with George Washington Carver and Percy Julian - recognized in 1998 as among the 75 most distinguished chemists of all time by Chemical and Engineering News, the weekly news magazine published by the American Chemical Society, the world's largest scientific society.

Research shows TV PSAs effective in reducing teen marijuana use
Researchers have demonstrated that television public service announcements designed for and targeted to specific teen personality types can significantly reduce their marijuana use.

African American teens at greater risk of tobacco addiction
Although African American students have the lowest rate of smoking aong the nation's 8th, 10th, and 12th graders, they are at greater risk of developing long-term consequences, such as smoking-related coronary heart disease, stroke, and lung cancer, than are their non-African American counterparts.

Novel route to lupus-like disease in mice
HHMI researchers have knocked out a gene that encodes an enzyme involved in modifying sugar molecules on the surface of cells, producing a disorder in mice that resembles the human disease, systemic lupus erythematosus

Southern star pulsates like the sun, say astronomers
An international team of astronomers has precisely measured the oscillations of a sun-like star.

Drug decreases blood vessel stiffness in older primates
A novel drug that breaks down vascular collagen bonds in the body significantly decreased the stiffness of blood vessels in older non-human primates, according to a study conducted by National Institute on Aging (NIA) scientists and others.

Nagyvary's violin research to be celebrated Feb. 12
Consider the Stradivarius violin.It is prized as a work of art, it costs $2-10 million, and to music lovers, it produces a sound that is priceless - and one that has become something of a mystery.

Author Dava Sobel honored for public service
The National Science Board (NSB) has selected author Dava Sobel to receive its 2001 individual Public Service Award.

Bad teeth and gums may exacerbate existing lung problems, UB oral biologists find
Chronic lung-disease sufferers should be especially fastidious about brushing and flossing their teeth.

Mouse with iron disorder offers clues to Parkinson's, similar diseases
Mice engineered to lack a gene involved in iron metabolism may provide important clues for deciphering the nature of a group of brain disorders-similar to Parkinson's Disease- affecting movement, according to a study by researchers at the National Institute of Child Health and Human Development (NICHD).

Gene study to unlock causes of stroke
Stroke is a major cause of death and disability, but a novel approach to identifying potential stroke victims through their genes has begun at Adelaide University.

New grain variety opens up possibilities for Australian farmers
Common vetch is a useful crop feed for some animals but toxic to others, and can cause health problems for humans.

Dual sensor could provide more information, earlier warning for diabetics
Diabetics could benefit from data provided by a new device that monitors glucose and insulin levels simultaneously, allowing better management of the disease. 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