krogh august ancel keys (1 résultats)

J. Chem. Soc., 1931. - September 1931, kl.8°, pp.2367-2440, 1 Fig., orig. Broschur. Rare Offprint! 1931 - "He developed the syringe pipette. This may not seem like a very important thing compared to wining a Nobel Prize, but until this time the accurate and repeatable measurement of fluids within a laboratory and between laboratories trying to replicate experiments was almost impossible." perfusiontheory "Krogh was an extremely accomplished experimenter, an ingenious designer of instruments and equipment; but his personal skill and his delight in beautiful techniques never led him far away from his interest in fundamental scientific problems, in fact these two sides of his nature were complementary. The microanalysis of gases, the cinematography of the capillary circulation, the automatic recording of human basal metabolism, the measurement of human muscular work, a spectrocomparator for determining oxygen and carbon monoxide in blood, the measurement of colloid or total osmotic pressure in biological fluids, syringe pipettes for precise analytical use, a celluloid capsule for measuring venous pressures, a bottom-sampler for use at sea, a microclimate recorder, the dust problem in museums and how to solve it: this list, taken chronologically from his publications, refers to technical improvements, some of major, some of minor importance, but all very characteristic of their originator." A.V. Hill, RSMP, 1950 Schack August Steenberg Krogh (1874-1949) was a Danish professor at the department of zoophysiology at the University of Copenhagen from 1916 to 1945. He contributed a number of fundamental discoveries within several fields of physiology, and is famous for developing the Krogh Principle. In 1920 he was awarded the Nobel Prize in Physiology or Medicine for the discovery of the mechanism of regulation of the capillaries in skeletal muscle; also he was first to describe the adaptation of blood perfusion in muscle and other organs according to demands through opening and closing the arterioles and capillaries.