Word: implanter
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...necessarily. An advisory panel to the Food and Drug Administration (FDA) last week reviewed new safety data on saline implants, which were approved by the FDA only two years ago. (Silicone-gel implants were never formally approved and are now available only in medical studies.) The review is timely. More than 200,000 women went under the knife last year to acquire bigger breasts. That's five times the number a decade ago. And 80,000 had implants after mastectomies. What could be worrisome about a sac of salt water? Plenty, according to the FDA hearings: more than...
...cloning advocates. We would never countenance such work in humans, they say. Cows, yes, but we would never implant a cloned human embryo in the uterus of a woman and grow it to the stage of a fetus. We solemnly promise to grow human clones only to the blastocyst stage, a tiny 8-day-old cell mass no larger than the period at the end of this sentence, so that we can extract stem cells and cure diseases that way. Nothing more. No fetuses. No implantation. No brave new world of fetal farming...
Well, the cow experiment shows the way to even more human betterment. Fetal tissue offers a far simpler and more promising way to produce replacement tissues--it skips all the complications of stem-cell biology and gives you tissue that you can implant right into the human patient. Millions are suffering, are they...
...When we stimulated a region of the whiskers, they 'felt' a touch." Someday, says Mandayam Srinivasan, director of the M.I.T. Touch Lab, who helped show two years ago that monkeys could control robots by thought alone, "you could build a neural chip for paralyzed people, similar to a cochlear implant for deaf people, that uses brain signals to control prostheses...
Prudent or not, implant technology is racing ahead with bionic speed. Kevin Warwick, a professor of cybernetics at the University of Reading in England, is working on the next step. In a few weeks, he will receive an implant that will wirelessly connect the nerves in his arm to a PC. The computer will record the activity of his nervous system and stimulate the nerves to produce small movements and sensations; such an implant could eventually help a person suffering from paralysis to move parts of the body the brain can't reach. If all goes well, Warwick will...