944 resultados para Fall velocity


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Signatur des Originals: S 36/F07211

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Signatur des Originals: S 36/F07212

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Signatur des Originals: S 36/F07285

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Signatur des Originals: S 36/F07293

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Signatur des Originals: S 36/F07296

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Signatur des Originals: S 36/F07424

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Signatur des Originals: S 36/F07425

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Signatur des Originals: S 36/F07426

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Signatur des Originals: S 36/F07427

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Signatur des Originals: S 36/F07428

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Signatur des Originals: S 36/G02602

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This dissertation develops and tests through path analysis a theoretical model to explain how socioeconomic, socioenvironmental, and biologic risk factors simultaneously influence each other to further produce short-term, depressed growth in preschoolers. Three areas of risk factors were identified: child's proximal environment, maturational stage, and biological vulnerability. The theoretical model represented both the conceptual framework and the nature and direction of the hypotheses. Original research completed in 1978-80 and in 1982 provided the background data. It was analyzed first by nested-analysis of variance, followed by path analysis. The study provided evidence of mild iron deficiency and gastrointestinal symptomatology in the etiology of depressed, short-term weight gain. Also, there was evidence suggesting that family resources for material and social survival significantly contribute to the variability of short-term, age-adjusted growth velocity. These results challenge current views of unifocal intervention, whether for prevention or control. For policy formulations, though, the mechanisms underlying any set of interlaced relationships must be decoded. Theoretical formulations here proposed should be reassessed under a more extensive research design. It is suggested that studies should be undertaken where social changes are actually in progress; otherwise, nutritional epidemiology in developing countries operates somewhere between social reality and research concepts, with little grasp of its real potential. The study stresses that there is a connection between substantive theory, empirical observation, and policy issues. ^

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This talk will outline the history of the doctor-patient relationship in the West. It will touch briefly on medicine in Greek and Roman antiquity, using key texts from Hippocrates and Galen. It will also sketch the changing balance of the religious and the secular in medieval medicine. Finally, it will outline the rise of the modern personal doctor-patient relationship in the 18th century and analyze the chronic dissatisfaction that settled over relations between doctors and patients in the last quarter of the 20th century.