Word: mammalian
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Dates: during 1950-1959
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...embryonic development, have made possible great strides towards finding a possible future cure for cerebral palsy, it was learned yesterday. Samuel P. Hicks, Associate Clinical Professor of Pathology, conducts the experiments at the Medical School, and in ten years has gained much new knowledge of the development of the mammalian nervous system...
Before the group started its work, there was little positive knowledge of mammalian embryology. Unlike the bird or reptile, the mammal young develop inside the mother, and as a result testing becomes extremely difficult...
...Heller's method was to set up a pulsed electromagnetic field (80-180 pulses per sec., 27 megacycles) between electrodes. When he put tiny bits of iron, carbon, silver, oil, fat, starch or mammalian cells on a glass slide between the electrodes, he found that any asymmetrical particle promptly turned so that its long axis lay along the lines of force. Groups lined up Indian-file, like iron scraps between magnetic poles. Microorganisms such as bacteria or protozoa were forced to travel in similar paths; they resumed swimming normally at random only when the power was turned...
...science's deepest mysteries is what makes living creatures grow and what makes most of them stop growing as they reach maturity. In Nature, Professor Carroll M. Williams of Harvard describes research that may cast light on this basic mystery. He has extracted from mammalian tissues a "golden oil" that, injected into a caterpillar, stops its development and prevents its transformation into a butterfly...
...juvenile hormone may prove to be a substance that controls growth in mammals as well as insects. But so far Dr. Williams has not isolated the pure hormone or determined its chemical character, points out that its presence in mammalian tissues may be only a biochemical curiosity...