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Science News Archive August 2001 - Page 3


Page 3 of 8

Transracial adoptees psychological adjustment not as dependent upon their cultural identity as presumed, according to new study

A new study involving young adult transracial adoptees found that their exposure and competence in their birth culture are not necessary for good psychological adjustment. The study suggests that family and peer relationships, rather than cultural identity, may play a more significant role in shaping their mental health.

Environment may play a role in whether youth benefit from sports participation, according to two studies

Two studies suggest that environment plays a significant role in whether youth benefit from sports participation. In one study, urban youth showed positive influences on self-esteem and social competence, while rural African American girls found sports involvement may increase delinquent behaviors and substance use. The findings highli...

The lands nobody wanted

Research reveals that US nature reserves are unevenly distributed across ecological zones, leaving many plant and animal species unprotected. The study suggests that involving the private sector in conservation strategies can help preserve America's biodiversity.

SourceEcological Society of America·JournalEcological Applications·DateAug 24, 2001

Substantial resistance to HIV infection tied to genetic mutation

Researchers found that bisexual and homosexual Caucasian men with one copy of the delta-32 mutation have a 70% reduced risk of HIV infection compared to those without the mutation. The study, published in the Journal of Acquired Immune Deficiency Syndromes, provides insight into resistance to HIV infection among high-risk populations.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateAug 23, 2001

Social class and weight history predict adult obesity

A study published in American Journal of Clinical Nutrition found that adult obesity is predicted by family social class and weight history. The research examined the relationship between body mass index (BMI) and social class across four generations. Early age at menarche was also linked to later obesity, while BMI at age 14 was a str...

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateAug 23, 2001

Physical examination findings are important in predicting outcomes in heart failure, researchers report

Researchers found that patients with either a third heart sound or elevated jugular venous pressure were more likely to have progressive heart failure and subsequent hospital visits due to heart failure. The study highlights the importance of physical examinations in predicting outcomes for heart failure patients.

SourceUT Southwestern Medical Center·JournalNew England Journal of Medicine·DateAug 22, 2001

Heavy metal stars

A team of Belgian and French astronomers have discovered three distant stars with extremely high Lead abundances, exceeding other elements heavier than Iron. This finding aligns with current stellar models predicting the buildup of heavy elements in stellar interiors.

SourceESO·JournalNature·DateAug 22, 2001

Brittlestars use crystal lenses to spot approaching predators unique “visual” system is the first of its kind to be discovered in animals inhabiting the earth today

Brittlestars, also known as serpent stars, possess a unique 'visual' system that enables them to detect shadows and escape from predators. Their skeletal elements feature crystal lenses that transmit light to their nervous system, allowing them to respond to light changes.

Exploring the frontier of ultra-small electronics

Two Cornell University researchers are working on separate projects to develop new devices that could lead to huge increases in data storage and processing speed. George Malliaras is investigating the electrical properties of individual molecules, while Robert Buhrman is studying spin manipulation and quantum manipulation.

Playground bullies healthier than their victims

Research shows that children who bully others have fewer health problems than their victims, while those who are both bully and victim experience more physical and psychosomatic issues. Breaking the cycle of bullying in early primary school years is crucial to prevent long-term health problems.

SourceBMJ Specialty Journals·JournalArchives of Disease in Childhood·DateAug 21, 2001

Neurons implanted in stroke-damaged brain tissue show function, say University of Pittsburgh researchers

Researchers at the University of Pittsburgh Medical Center have successfully implanted LBS-neurons into patients with chronic stroke, showing a greater than 10% increase in metabolic activity in damaged areas. The surrounding area showed maintained or improved function, suggesting integration of the new neurons.