Science News for March 8, 2003

Simple optoelectronic devices based on silver nanoclusters perform logic operations

Researchers at Georgia Institute of Technology have developed optoelectronic devices based on silver nanoclusters that can perform addition and other complex logic operations. The devices use electroluminescence to produce optical output, allowing for read-out without electrical contacts.

SourceGeorgia Institute of Technology Research News·JournalProceedings of the National Academy of Sciences·DateMar 8, 2003

Neural development in time and space

Researchers have identified 'transcription factors' that control the time of neural cell generation, surprising discovery given earlier spatial control roles. The findings suggest a link between temporal and spatial control mechanisms in neuronal differentiation.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 8, 2003

Fast food and 'the tube': a combo for heart disease risk

A recent study published by the American Heart Association found that eating fast food meals more than twice a week was associated with double the risk of abnormal glucose control and a 50% increase in obesity risk. Additionally, frequent TV viewing habits were linked to increased odds of obesity and abnormal glucose metabolism.

SourceAmerican Heart Association·DateMar 8, 2003