Word: holter
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...Some hydrocephalus cases can be treated with fair success by putting a tube in the spinal canal half way down the back and draining the fluid from the brain through the spinal canal into the urinary system. But this child, son of a Philadelphia industrial technician named John W. Holter. was in a worse plight because he had a barrier between the brain cavity and the spinal canal...
That night Holter went home and stared at his drawing board. He drew the design of a valve with two fins that opened and shut like the gates of a canal lock. But what to make it of? Holter began a frantic search for a suitable material. He worked evenings and weekends, got only three or four hours' sleep a night. The valve had to be durable. It must be inert, so as not to corrode or cause reactions in the blood. While Holter worked, surgeons operated again, put in a temporary tube in the hope of keeping...
...Spitz opened the baby's jugular, made an opening between the vein and one of the fluid-filled brain cavities, set the valve into the opening, and closed the skin over it. The valve worked. In less than two weeks Charles Holter went home. Last week, nearing his first birthday, he was still doing well. Though fluid might continue to collect for the rest of his life, it could drain off through the valve, which would stay in place. Pediatricians, who had just heard Dr. Spitz's report, were hopeful that his technique and Holter's valve...
Independent physicists Norman J. Holter and W. R. Glasscock of Helena, Mont., reported Arnold, collected snow or rainwater and filtered it through cotton. The idea was to locate large deposits of uranium ore by means of the radioactive gases that they give off. Some of the gases turn into solid, radioactive elements, which are carried down by rain...
...tested over a series of days, its activity diminishes according to a definite rule that depends on the "decay rate" of the elements involved. The curve of decay, plotted on a chart, normally consists of portions of two straight lines. On nine occasions in 1951 and early 1952, Holter & Glasscock collected samples that gave far from normal curves. Study showed that they were the decay curves of very complex mixtures of radioactive substances. The fission products remaining after an atomic explosion fit this description exactly...