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Science News for July 7, 2004


Study: Religious activity equals less sex, drugs for some teens

A new study suggests that high levels of church attendance in the ninth grade may protect some African-American teenagers from engaging in risky behaviors throughout their high school career. The research found that more religious activity in the ninth grade was associated with smaller increases in marijuana use among boys and cigarett...

SourceOhio State University·JournalAmerican Journal of Community Psychology·DateJul 7, 2004

Guidelines for food allergy testing

Researchers recommend performing oral food challenges on children with at least a 50-50 chance of passing, based on IgE antibody levels less than 2.0 kilounits per liter of blood. This guideline aims to reduce unnecessary avoidance of common allergenic foods and improve the accuracy of food allergy diagnosis.

SourceJohns Hopkins Medicine·JournalJournal of Allergy and Clinical Immunology·DateJul 7, 2004

Old galaxies in the young universe

Researchers used ESO's Very Large Telescope to identify four massive elliptical galaxies at a redshift of 1.6-1.9, dating back to around 3,500 million years ago. These galaxies have ages between 1,000 and 2,000 million years and masses in excess of one hundred thousand million solar masses.

SourceESO·JournalNature·DateJul 7, 2004

ESA awarded new SEEDS grant

The Ecological Society of America has awarded a new SEEDS grant to increase diversity in ecology. The program will expand existing activities, including undergraduate research fellowships and field trips, to reach more students from African American, Latino, and Native American communities.

$1.6 million grant to Williams College

The Howard Hughes Medical Institute has awarded Williams College a $1.6 million grant to enhance science education and research opportunities for students, faculty, and local communities. The award will support programs such as elementary school outreach, high school laboratory exercises, and student summer research initiatives.

Tuning the nanoworld

Researchers at Lawrence Berkeley National Laboratory have developed a new method to create branched nanostructures by combining quantum dots and segmented nanorods. These structures can be tailored for various electronic applications, including quantum computing and artificial photosynthesis.