A SNIP WITHOUT SNIPS Nathaniel Fried is a man who restores one's faith in nominative determinism - the notion that a person's choice of career is somehow dictated by their surname. The researcher at Johns Hopkins Medical School in Baltimore, Maryland, has discovered that by firing a pulse of ultrasound at the male scrotum, he can perform a permanent vasectomy without making any incisions at all. Five watts of ultrasound briefly administered by a specially shaped transducer can heat the vas deferens - the tubes that carry sperm from the testicles into the urethra - to over 50 degrees Celsius. This kills cells in the tube wall, which coagulate and obstruct the tube. "You are essentially cooking the tissue," says Dr Fried. ______________________________________________________________________ Get the mailserver that powers this list at http://www.coolfusion.com
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