Brain Contains Cocaine-Like Chemical

Dr. Michael Kuhar and a team of neuroscientists at the Yerkes Regional Primate Research Center of Emory University have found that a naturally occurring neurotransmitter produces behaviors associated with cocaine and methamphetamine. The finding suggests a role for the brain chemical, called CART (Cocaine- and Amphetamine-Regulated Transcript) peptide, in modulating or mediating the actions of […]

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Some People Genetically Predisposed To Tuberculosis

In the August issue of The American Journal of Human Genetics, Celia Greenwood and colleagues present evidence for a major genetic component to TB susceptibility. Tuberculosis (TB) is currently a major public health problem worldwide. Although there are millions of new cases of TB each year, not all individuals exposed to TB become infected, nor […]

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The Game Of Missile Interception

War is never a game, but one expert has brought game theory to bear on defending against incoming ballistic missile attacks. This theory could help improve the accuracy of the Pentagon’s National Missile Defense system, the scaled-down version of the “Star Wars” effort, begun during the Reagan administration. The idea of using game theory — […]

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What Your Handshake Says About You

A new study backs up what the etiquette books have been saying all along, that a firm handshake helps makes a good first impression for both males and females. The study, reported in this month’s issue of the Journal of Personality and Social Psychology, a journal published by the American Psychological Association (APA), finds that […]

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Birthdays And Correlation To Achievement

Being born in the early part of a year may affect a child’s success in sport, school and self-esteem according to a University of Alberta researcher. Dr. Gus Thompson, from the departments of psychiatry and public health sciences, has been studying how the “relative age” effect contributes to achievement. He found that a disproportionate number […]

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Compound That Switches Off Appetite Discovered

Johns Hopkins scientists have produced a compound capable of rapidly turning off appetite in mice and causing weight loss similar in many ways to that achieved by fasting. When injected, the substance, which is apparently non-toxic to the mice, wipes out the animals’ interest in food within 20 minutes. The effect of the chemical called […]

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