Word: mammalian
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Transplants, Cooley told an American College of Cardiology meeting in Los Angeles, have produced evidence that the development of a successful artificial heart "may actually be easier than we had previously believed." The explanation: nature has provided the mammalian (including the human) heart with an elaborate fail-safe system of dual controls, one through the nervous system and another through hormonal channels. Early researchers on artificial hearts were overwhelmed by the difficulties of trying to duplicate these enormously complex natural systems. This, said Cooley, is not necessary...
Died. Gregory Goodwin Pincus, 64, research director of the Worcester Foundation for Experimental Biology and a brain father of birth control pills; of myeloid metaplasia, a blood disease; in Boston. A brilliant biologist, Pincus first won national attention in 1939 by inducing a "fatherless" mammalian birth (a lab-fertilized rabbit egg); then in the 1950s, with Harvard Gynecologist John Rock, successfully tested an ovulation depressant called progestin, which came on the market in 1960 as Enovid. At his death, Pincus was testing yet another idea: a "morning after" pill, which keeps fertilized eggs from settling in the womb...
...rites," but, as Jessica Mitford has ably pointed out, interment is the method that is eerie. Cryobiology is a young science, but the mass of individuals now planning on being frozen should give it a stimulating boost. Last year predictions ran that it would be 50 years before a mammalian brain would be successfully frozen, but one was successfully frozen and thawed that very year (Nature, Oct. 15, 1966). Now you are saying that success with a human organ lies in the distant future. How distant...
...filters. With infinite patience and persistent good humor, Dr. Rous extended his work to other kinds of tumors in different species of fowl. A quarter-century later, the late Dr. Richard E. Shope followed his lead and produced virus-induced tumors in rabbits. By now, half a dozen mammalian species carry viral cancers in the laboratory...
...fully confirmed, the investigators expect it may be invaluable for combat wounds, which, with today's weapons, tend to be larger than ever. The suggested explanation, said Major Pories, is simple. A tiny amount of zinc is present in enzymes, which are essential to the original growth of mammalian organisms and also, it seems, to the regrowth of destroyed or damaged tissues. In any case, said Pories, research may well indicate that extra zinc should be added to the diets of men going into combat-just in case they...