منابع مشابه
Radiological physicists
JUAN A. DEL REGATO, Radiologicalphysicists, New York, American Institute ofPhysics for the American Association of Physicists in Medicine, 1985, 4to, pp. v, 188, illus., $25.00. Radiology provided perhaps the main route by which physicists entered medicine in the period leading up the Second World War. Among other things, they were needed to develop and service X-ray and radium equipment; to de...
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A modular approach is presented for the construction of 2-manifolds of higher genus, corresponding to the connected sum of multiple Klein bottles. The geometry of the classical Klein bottle is employed to construct abstract geometrical sculptures with some aesthetic qualities. Depending on how the modular components are combined to form these “Super-Bottles” the resulting surfaces may be single...
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Two-bottle tests have been used extensively to measure the preference for taste and nutrient solutions but there has been little work with tests involving more than two bottles. Here, we compare the results obtained in two-bottle tests with those obtained in three- and six-bottle tests. In Experiment 1, we measured the preferences for 2 mM saccharin, 50 mM citric acid, 0.3 mM quinine hydrochlor...
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ژورنال
عنوان ژورنال: Nature
سال: 1996
ISSN: 0028-0836,1476-4687
DOI: 10.1038/381725a0