Word: imperfect
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...kill tissue cells, but he does not think any part of an animal's body is seriously damaged by the loss of a few cells. Genetic damage is another matter. If a cosmic ray hits a reproductive cell (sperm or ovum), it can cause the birth of an imperfect individual. Major Simons cannot guarantee at present that all his high-flying mice and monkeys will have normal descendants...
Iowa has, however, a program which attempts to eliminate these inadequacies. By administering IQ tests from first grade on, and comparing scores with classroom achievements, the educators can discover the student who is unmotivated. While IQ tests are very imperfect measures of ability, they can show who has ability and is not working...
...then sometimes has the great satisfaction in having helped her charges. Why so much sympathy for Miss Dunn for her abandonment? Are we teachers to wait for ideal conditions before trying to help these unideal children learn to use what they have in the best way possible in an imperfect world...
Practical Possibility. The technique of degrading and reconstituting viruses may make it possible to create safe and effective vaccines against diseases, e.g., polio, that are caused by simple viruses. Only about 1% of the TMV particles that were reconstituted during the experiment proved fully infectious. The rest were imperfect in some way. Apparently their protein molecules had not arranged themselves properly. When scientists learn to control this rebuilding process, they may be able to produce slightly imperfect viruses that can stimulate the defensive forces of the human body, but cannot start a real infection. Says Dr. Williams: "This...
...that it was far from perfect. Big Power unanimity was already deteriorating, and the Cold War itself was not far off. Now, ten years later, as the question of Charter review comes before the General Assembly, it is clear that the U.N. has done much quiet growing within its imperfect framework...