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Science News for August 16, 2002


When moms smoke, certain kids are more vulnerable

Children with a common genetic variant exposed to maternal cigarette smoke in utero are more likely to experience respiratory problems, including asthma and wheezing. Researchers identified a link between the GSTM1 null genotype and increased risk of respiratory symptoms.

SourceUniversity of Southern California·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateAug 16, 2002

Alcohol use, thrill-seeking prove bad mix for HIV-positive men

A study by Seth C. Kalichman found that HIV-positive men who were sensation seekers were more likely to have unprotected sex, regardless of alcohol use. Alcohol also predicted unsafe sex, independent of sensation seeking. The study suggests cognitive approaches can help improve risk reduction interventions for HIV-positive men.

SourceCenter for Advancing Health·JournalAnnals of Behavioral Medicine·DateAug 16, 2002
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Discovery could bring widespread uses for 'nanocrystals'

Researchers at Purdue University have developed a process to produce metal nanocrystals in large quantities at low cost, containing valuable nanocrystals in common machining processes. The discovery could lead to widespread uses of nanocrystals in various industries, including automotive and electronics.

SourcePurdue University·JournalJournal of Materials Research·DateAug 16, 2002