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Science News Archive September 2002 - Page 6


Page 6 of 8

Genomics and world peace

The European Molecular Biology Laboratory highlights the potential for genomic research to combat tropical diseases. However, commercial interest in developing treatments has been limited, and it will be necessary to combine efforts from not-for-profit organizations and private funds to support research in developing countries.

SourceEuropean Molecular Biology Laboratory·JournalEMBO Reports·DateSep 10, 2002

Sex-pheromone link to insect evolution

Researchers at Cornell University discovered a previously undetected gene that regulates insect sex-pheromone production, leading to rapid evolution of chemical systems and new species emergence. The delta-14 gene allows females to change their pheromone components, attracting only one male out of 200 with the same response.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateSep 10, 2002

Male birds' ability to learn song affects female mating response

Researchers found that the quality of a male bird's learned song is linked to its attractiveness to females, who prefer well-copied wild-type songs. The study suggests that females use song-learning ability as an indicator of male quality and provides insight into the role of traits learned by males in sexual success.

SourceDuke University·JournalProceedings of the Royal Society of London·DateSep 10, 2002

Six of the best

Researchers present findings on how improved food access affects diets, ethnic inequalities in health, and the impact of capitalism on Eastern Europe. They also explore the relationship between economics and happiness, highlighting surprising statistics about marriage and divorce.

Gene therapy treats first disease affecting multiple organ systems in a large animal

Researchers have developed a gene therapy approach to treat mucopolysaccharidosis VII, a disorder affecting multiple organ systems, in dogs. The treatment involves four intravenous injections of a retroviral vector expressing canine beta-glucuronidase, resulting in normal enzyme activity and near-normal mobility in treated dogs.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateSep 9, 2002

Promoting marriage may not benefit all children

A recent study published in Child Development found that black children in single-parent households do as well as those in two-parent homes in terms of math scores and delinquency. The study suggests that policies promoting marriage may have little effect on black children, unlike white children

SourceCornell University·JournalChild Development·DateSep 9, 2002

From parasitism to mutualism

A study by Johnstone and Bshary found that the threat of leaving by clients can prevent cleaners from exploiting them. In asymmetric interactions, this 'partner control' model matches existing data on cleaner and client behavior.

SourceBlackwell Publishing Ltd.·JournalEcology Letters·DateSep 6, 2002

9/11 one year on: Bridging the world’s divisions

A study published in The Lancet found that single-session psychological debriefing after traumatic events is ineffective and may even do more harm than good. The research suggests that formal therapy like critical incident stress debriefing can prevent people from seeking natural family or social support systems.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 5, 2002