منابع مشابه
Lung cancer mortality in nickel/chromium platers, 1946-95.
OBJECTIVES To investigate mortality from lung cancer in nickel/chromium platers. METHODS The mortality experience of a cohort of 1762 chrome workers (812 men, 950 women) from a large electroplating and light engineering plant in the Midlands, United Kingdom, was investigated for the period 1946-95. All subjects were first employed in chrome work at the plant during the period 1946-75, and had...
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The term isomorphism literally means equality or sameness (iso) of form (morphism). In mathematics an isomorphism between two systems requires a one-toone correspondence between their elements (that is, each element of one system corresponds to one and only one element of the other system, and conversely), which also preserves structures. Referring to isomorphism as one of the most important an...
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Les auteurs rapportent 17 cas de la deuxième maladie de Köhler. Il s'agit de jeunes femmes (13 cas), qui ont consulté pour des douleurs métatarso-phalangiennes unilatérales de type mécanique. La maladie touche la deuxième tête métatarsienne dans 14 cas. Le diagnostic est posé grâce à la radiologie: le stade III est retrouvé dans 11 cas. Nous avons opté pour l'intervention de Gauthier: Ostéotomi...
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Baltasar-George Sage (1740-1824), a conflictive chemist and mining engineer, and one of the last supporters of the phlogiston theory and the old chemical nomenclature, carried on a large number of metallurgical researches, discovered hypophosphoric acid and solid potassium ferrocyanide. His most achievement was the foundation of the School of Mines of Paris. LIFE AND CAREER In his biography Bal...
متن کاملGeorges Cuvier (1769-1832)
Georges Cuvier [4], baptized Georges Jean-Léopold Nicolas-Frédéric Cuvier, was a professor of anatomy at the National Museum of Natural History in Paris, France, through the late eighteenth and early nineteenth centuries. Scholars recognize Cuvier as a founder of modern comparative anatomy, and as an important contributor to vertebrate paleontology and geology. Cuvier studied the form and funct...
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ژورنال
عنوان ژورنال: Nature
سال: 1995
ISSN: 0028-0836,1476-4687
DOI: 10.1038/374498a0