Brightsurf Science News & Current Events

November 05, 2000
Flickering quasar helps chandra measure the expansion rate of the universe
Astronomers using the Chandra X-ray Observatory have identified a flickering, four-way mirage image of a distant quasar.

Colorado U. study indicates Denver area drivers unmoved by state air quality advisories
A sample study of Denver-area drivers indicates almost all are aware of air-quality advisories and voluntary driving restrictions during high-pollution days in the fall and winter, but the advisories have no significant effect on commuters' transportation habits, according to a University of Colorado at Boulder study.

Drinking in a bar puts women at risk for male aggression
Fifty-seven percent of the women who participated in a recent study at the University at Buffalo's Research Institute on Addictions (RIA) reported experiencing at least one incident of verbal or physical aggression while drinking in a bar.

Twin study suggests genetic link between craving alcohol, sweets
University of North Carolina at Chapel Hill researchers have found a strong correlation between men's preference for sweet tastes and whether their twin brothers liked sweets too.

Scientists discover enzymes capable of duplicating damaged genetic material (DNA) and creating new mutations
Potential Applications of Weizmann Institute Discovery: Suppressing the Spread of Antibiotic-Resistant Bacteria, and Reconstructing Ancient or Damaged DNA Left at Crime Scenes.

Scientists find infection history must play key role in vaccine development
The timing and design of vaccines used to immunise against lung infections may have to change in the light of research findings by Imperial College, London scientists.

Survival rates are improving for infant heart surgery: 15 years of results reported for hypoplastic left heart syndrome
Survival rates have been steadily improving for children who undergo surgery as infants for a life-threatening congenital condition called hypoplastic left heart syndrome (HLHS).

Studies may shed light on link between lack of neurons and SIDS
University of Illinois research, involving rats, has identified a specific brain pathway in which neurons activate in times of low oxygen (hypoxia) and trigger increased breathing.

Interest in link between inflammation and heart disease swells
Three studies published in today's Circulation: Journal of the American Heart Association provide new insight into the role of infections and inflammation in heart attacks.

NC State physicists get first glimpse of nanoscale molecular behavior
A team of North Carolina State University physicists has discovered a new method for measuring the molecular properties of materials, which could assist in the development of a wide variety of cutting-edge nanostructure technologies.

Study of school 'connectedness' identifies adolescents at risk
A physician at Children's Hospital Medical Center of Cincinnati has for the first time identified common characteristics in young people who feel

Hopkins scientists show enzyme is key to hallmark of Alzheimer's
Scientists at Johns Hopkins have demonstrated that a specific enzyme in the brain is essential for nerve cells to form a hallmark of Alzheimer's disease (AD) -- the so-called amyloid plaques that collect and surround brain cells.

Genetically engineered hemoglobin brings artificial blood a step closer
Using genetic engineering techniques, researchers have created artificial hemoglobin that could be used in a blood substitute to help solve perennial blood bank shortages.

Brain imaging technology can reveal what a person is thinking about
Powerful brain imaging technology is allowing researchers to actually tell what a person is thinking before they even say it.

'Exquisite' molecular mechanism found for impetigo infection, spread
The bacterium Staphylococcus aureus, cause of the common skin infection bullous impetigo, produces a toxin that attacks a protein highly specific for cell-to-cell binding in the outermost layer of the skin.

Nicotine causes selective degeneration in brain, UCLA neuroscientists report
Nicotine causes degeneration in a region of the brain that affects emotional control, sexual arousal, REM sleep, and seizures, UCLA neuroscientists report in the journal Neuropharmacology.

High rate of star births linked to supermassive black holes
The unusually high rates of star births seen in some galaxies may be linked to voracious black holes at the center of those galaxies, according to a new analysis of astronomical data by researchers at The Johns Hopkins University.

Scientists identify molecule that whisks away toxic protein found in Alzheimer's
Scientists have discovered how mice normally sweep away the protein that forms the plaques in brain tissue that are a hallmark of Alzheimer's disease.

Perception of color contrast, constancy depends on neural 'reflexes,' says vision theory
In the latest in a series of papers proposing that visual perception is an intricate collection of reflexes similar to the familiar 'knee jerk' response, Duke University Medical Center neurobiologists outline evidence on the perception of color that they say supports their theory.

University of Pittsburgh scientists identify how brain 'gets ready' to perform
Using functional magnetic resonance imaging, researchers at the University of Pittsburgh School of Medicine have identified the mechanism by which the brain prepares itself to solve a problem.

INEEL and UI receive grant to improve jet engines
A grant from the Air Force Office of Science Research will help improve the design of jet engine turbine blades. 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