Word: comparisons
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Dates: during 1950-1959
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...Comparison...
Stott found that 55% of the retarded children had been ailing from birth, usually failing to gain weight, or losing weight, during the first few weeks. This was double the rate among their brothers and sisters (not retarded), three times the rate among unrelated comparison groups...
...were nine cases of shock or accident. With some overlaps, such factors were found in 66% of the retarded children's backgrounds, but in only 30% of the normal children's. Among the retarded children, 15% had physical deformities (fused fingers, clubfoot), ten times the rate among comparison groups...
...power," he said, "to protect our country from the civil discord and strife into which some countries-and here I am thinking of Indonesia-have fallen after achieving independence." The Colonial Office, in its anxiety to see that the transfer of power is peaceful, has an even more unhappy comparison in mind: that of India and Pakistan, whose baptism of freedom took place in a bath of blood. By summoning the proud chieftains of Nigeria to neutral London, Britain hoped to help them find a peaceful path to independence...
...propeller, and since they are still converging, they combine into a well-defined jet that has a superior propulsive effect. A steel plate below the propeller keeps it from drawing water inefficiently from below. MacMillan says that his system has been tested on two Cargill towboats and that careful comparison with conventional equipment proves it 20% more efficient...