Word: filtered
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Firmer Figure. To detect these few hits, a stream of helium will bubble through the tank, sweeping any argon 37 and carrying it to a charcoal filter. Then a special instrument will count the argon atoms by means of their radioactivity. Their number will be in direct proportion to the total number of neutrinos emitted...
...game of musical pulpits has a protocol as rigid as that of court tennis. Ministers never publicly announce that they are ready to move elsewhere, generally let the word filter out through clerical friends. As a rule, pulpit committees play up "challenge" and "opportunity for service" rather than salary, insist that a minister dispose of any other offers he has before considering theirs. Under the rules of the game, an out-of-town candidate is seldom invited to preach directly to an interested congregation; instead, pulpit committeemen drop into his church to hear him unobserved. But most committeemen are about...
...newborn baby is taken home from the hospital he is given a novel goodby: a doctor takes hold of him and jabs a lancet into his heel. From the resulting tiny puncture, the doctor squeezes three drops of blood, one each into circles printed on a piece of filter paper. With a midget bandage stuck on his heel, the baby is ready to leave. There is still one more formality: the mother gets a leaflet explaining the purpose of the jab in the heel and why she should have it repeated when the baby is a month...
...most protein foods, and the poison that accumulates in his system as a result permanently damages the brain. But if PKU is detected early enough, a special diet will avert nearly all the damage. The difficulty lies in early detection. In the laboratory, the blood spots on the filter paper will reveal...
...Hence the advice to the mother: take the month-old baby to a pediatrician for a second test. In case the mother has no pediatrician, or feels she cannot afford to use one, the health department gives her an alternative. Along with the explanatory leaflet the mother gets some filter paper, with instructions to put a piece inside the baby's diaper. After the wet diaper is removed, the mother dries the paper and mails it to a state laboratory, where chemical analysis will diagnose PKU. This urine test is rated useful, but not quite as reliable...