Category: University of California at Los Angeles
Using Einstein's theory of special relativity to speedup computer simulations, scientists have designed laser-plasma accelerators with energies of 10 billion electron volts (GeV) and beyond.
UCLA Neuropsychiatric Institute researchers have identified 10 key factors to recovery from schizophrenia. The findings open opportunities to develop new treatment and rehabilitation programs and to reshape the negative expectations of many doctors, patients and their families. Based on analyses of the professional literature and the cases of 23 schizophrenia patients who successfully returned to work or school with their symptoms under control, the findings appear in the November 2002 edition of the International Review of Psychiatry.
Scientists have discovered that infants possessing a cell protein called Rhesus (Rh) factor that their mothers lack are twice as likely to develop schizophrenia in young adulthood. Reported in the December issue of the peer-reviewed American Journal of Human Genetics, the study suggests that the gene that codes for Rh factor is to blame for the higher risk. "Previous studies reported a link between mothers and infants who are Rh-incompatible and a higher rate of schizophrenia in the children later in life," said Dr. Christina Palmer, a research scientist at the UCLA Neuropsychiatric Institute. "Our research is the first to take a genetic approach to examining this increased risk."
Researchers for the first time have identified and ranked which diseases contribute most to the life-expectancy gap between races and between education levels. The top four contributors to the life-expectancy disparity between blacks and whites are hypertension, HIV, homicide and diabetes. The top six contributors of mortality differences between education levels are all smoking-related diseases.
Second-hand tobacco smoke threatens the health of 21 million American children ? 35 percent of everyone age 17 and younger ? who live in homes where residents or visitors smoke once a week or more, according to a study published Nov. 13 by researchers from RAND and UCLA. The study is the most thorough ever conducted of youths' exposure to environmental second-hand tobacco smoke at home. It found that 19 million American children ? 28 percent of everyone in the United States 17 and younger ? are exposed to tobacco smoke at home on a daily basis.
Scientists have coupled the protein that makes fireflies glow with a device similar to a home video camera to eavesdrop on cellular conversations in living mice. The team's research will allow scientists to study how cellular proteins talk to one another. These communications trigger changes that regulate a healthy body and cause disease when the signals go awry. The findings may speed development of new drugs for cancer, cardiovascular diseases and neurological diseases.
Researchers have created a tiny motor that they can turn on and off at will, bringing scientists one step closer to using such devices to repair cellular damage, manufacture medicines and attack cancer cells. As reported in this month's Nature Materials, the researchers have developed a chemical switch that gives them control over a biomolecular motor just 11 nanometers, or 11 billionths of a meter, in size ? hundreds of times smaller than the width of a human hair.
Researchers have developed the world's first animal model for mature human B-cell lymphomas, a discovery that may lead to the uncovering of the genetic mutations that cause these types of cancer. Mature B-cell type lymphomas account for about 85 percent of all lymphomas, and include both Hodgkin's and non-Hodgkin's lymphomas.
Researchers in Los Angeles have localized a region on chromosome 16 that is likely to contain a risk gene for Attention Deficit Hyperactivity Disorder, the most prevalent childhood-onset psychiatric disorder. The scientists say their finding suggest that the suspected risk gene may contribute as much as 30 percent of the underlying genetic cause of ADHD and may also be involved in a separate childhood onset disorder, autism.
Antennas for the next generation of cellphones and other wireless communications devices may bear a striking resemblance to the Santa Monica Mountains or possibly the California coastline.
That's because UCLA researchers are using fractals ? mathematical models of mountains, trees and coastlines ? to develop antennas for next-generation cellphones, cars and mobile communications devices. These antennas need to be miniature and be able to operate at multiple frequencies simultaneously.
In case there was any doubt, researchers in --- where else? --- Los Angeles have determined that living near a freeway exposes you to a lot more pollution than if you lived further away. Specifically, a UCLA team found people who live, work or travel within 165 feet downwind of a major freeway or busy intersection are exposed to potentially hazardous particle concentrations up to 30 times greater than normal background levels.
