Word: agente
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Dates: during 1950-1959
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During the war, the Germans had perfected a gas which destroys an enzyme called cholinesterase, a substance that ordinarily works as a "brake" for the nervous system. Without this controlling agent, the nerves stimulate the body's muscles into convulsive activity. Severe exposure results in paralysis and eventually death...
...National Student Association, which is registered here in Washington as a lobbying agent, started agitation for some kind of tax relief last year, and has backed both the Multer Bill and the new proposal for easing the dependency regulations...
Said Dr. Ochsner: "This study of Drs. Graham and Wynder [published in Cancer Research, out this week] has proven beyond any doubt that in tobacco tar there is an agent which produces cancer. If we could find it and extract it, smoking might not be harmful. But, on the basis of the number of people who are smoking now, I predict that by 1970 one out of every two or three men with cancer will have cancer of the lung-or one out of every ten or twelve men living...
...Cancer and Allied Diseases, after study of the Graham-Wynder findings: "The underlying medical question is settled. But as so often happens, we now have a new problem with social implications-how to organize and pay for the research which will show us how to remove the mouse-cancer agent from tobacco, or render it inert, and also to track down the many other factors which may be contributing to the increase in lung cancer...
...apparently must be retained deep in the lungs, a condition usually found in cigarette smokers, who inhale deeply, not in pipe and cigar smokers, who seldom inhale. ¶ Why does lung cancer concentrate on men in middle life? Because the cancer-causing factor seems to be a slow-acting agent, which may need half an individual's normal life span to do its deadly work. ¶ If cigarette tar contains a cancer-causing agent, why don't all cigarette smokers get lung cancer? Some do not live long enough to get the cancer; many more would never...