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Science News Archive September 2000 - Page 2


Page 2 of 6

Left-handedness is not necessarily the kiss of death

A study of 1,277 elderly people found no correlation between left-handedness and mortality rate. Instead, factors such as pressure to switch hands, gender differences, and adaptation to a right-hand world influenced the prevalence of left-handedness among older adults.

SourcePenn State·JournalDevelopmental Neuropsychology·DateSep 26, 2000

Origin of salts in the 'Dry Valleys' of Antarctica provide clues to atmospheric deposition on Mars

Researchers at UCSD discovered an oxygen-isotope anomaly in soils that suggests atmospheric deposition of sulfates from sulfur-emitting marine algae is a significant contributor to the region's high salt concentrations. The study provides concrete evidence for biological activity as the primary source of salt in the Dry Valleys.

Graduate School of Public Health at University of Pittsburgh receives $1.6 million grant to train public health workers

The University of Pittsburgh Graduate School of Public Health will operate a Central Appalachian Public Health Training Center, providing on-site and distance-based training programs for underserved areas. The goal is to assure high-quality performance of public health agencies by upgrading the skills of existing workforce members.

Scientists decipher the 'zip codes' that direct cells in the bloodstream to bodily tissues where they're needed

Researchers have identified key molecules on the surface of blood cells that guide them to their rightful targets in the body's tissues. This process, known as cell trafficking, is crucial for the proper function of the immune response and helps prevent cancerous cells from spreading.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateSep 25, 2000

FAA funds Northwestern research on aging wiring

Researchers at Northwestern University are developing a non-destructive test to detect small flaws, latent flaws, and general degradation in commercial aircraft wiring. The FAA is funding the $450,000 grant, which aims to improve aircraft safety by identifying critical degradation levels of aging wiring without removal from its location.

BU receives Knight Foundation grant

Boston University will create an international science and medical journalism center with a $1.1M Knight Foundation grant. The center aims to improve the quality of medical journalism, train journalists to report on scientific advances, and increase global coverage.

Researchers trace roots of vivid memories

Researchers used fMRI to probe the roots of a longstanding hypothesis in memory research. They found that recalling sensory-specific experiences activates brain regions responsible for processing those experiences. However, they also discovered that high-level perception areas are selectively reactivated during remembering, suggesting ...

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateSep 25, 2000

One-third of the American diet is junk food: The other two-thirds don't achieve 100% of the recommended daily allowance

The average American consumes 27% of their daily energy from junk foods, which can lead to nutritional and health issues. The study found that those who consumed more healthy foods like fruits and vegetables were less likely to develop heart disease.

Vast majority of depressed teens do not get needed psychiatric treatment

A new study found that nearly 80% of depressed teenagers do not receive necessary psychiatric medical treatment, which can lead to a repeat bout of major depression and involvement in substance abuse by early adulthood. Especially at risk are depressed teenage girls who clash with parents or have a family history of recurrent depression.

SourceAmerican Psychiatric Association·JournalAmerican Journal of Psychiatry·DateSep 24, 2000

Management of osteoarthritis pain

A comprehensive program involving exercise, weight loss, and joint protection principles is necessary for effective osteoarthritis management. Over-the-counter acetaminophen may be the only required medication for mild-to-moderate pain relief.

SourceJitsu Public Relations·JournalArchives of Rheumatology & Arthritis Research·DateSep 24, 2000

Researcher proves fetuses hears at 30 weeks

Researchers have demonstrated that human fetuses can hear by the eighth month of pregnancy, with cardiac and motor responses to computer-generated white noise detected at around 30 weeks. The study's findings suggest that the fetus's auditory system is developed enough to detect sound, but the exact nature and impact of this experience...

SourceQueen's University·JournalEarly Human Development·DateSep 21, 2000

Vacations may improve your health

A nine-year study of over 12,000 men at high risk for coronary heart disease found that those with regular annual vacations had a lower risk of death. Vacations were more protective against death from coronary heart disease than diseases like cancer, possibly due to stress reduction and engagement in restorative behaviors.

SourceCenter for Advancing Health·JournalPsychosomatic Medicine·DateSep 21, 2000