نتایج جستجو برای: cyclical time
تعداد نتایج: 1896179 فیلتر نتایج به سال:
the adrenal gland of notopterus notopterus (pallas) consisted of interrenal and chromaffin cells, distributed around the main branches of posterior cardinal vein in most anterior part of the pronephric kidney. seasonal histological characteristics of the interrenal and chromaffin cells in relation to testicular activity of n. notopterus were studied by adopting different staining techniques. th...
Abstract-Analytic models are developed for optimizing bus services with time dependence and elasticity in their demand characteristics. Some supply parameters, i.e. vehicle operating costs and speeds are also allowed to vary over time. The multiple period models presented here allow some of the optimized system characteristics (e.g. route structure) to be fixed at values representing the best c...
Reported cases of cyclical Cushing's syndrome are rare. Of 14 successive patients with Cushing's syndrome nine collected sequential urine samples for the estimation of cortisol:creatinine ratio. Five had cyclical Cushing's syndrome while two had considerable variation in urinary cortisol excretion without a cyclical pattern being established. Two of the five patients with a cyclical syndrome ha...
This paper analyzes the dynamics of full-time and part-time employment over business cycle. We first document basic macroeconomic facts on these stocks using U.S. data decompose their cyclical into contributions different flows out stocks. Second, we develop estimate a New Keynesian search-and-matching model with segmented labor market to uncover fundamental driving forces find countercyclicali...
We develop a theory of cyclical unemployment, which relates the processes of job creation and job destruction over the business cycle, to the processes of restructuring, innovation and implementation arising from a model of endogenous cyclical growth. Due to a moral hazard problem, production workers are paid efficiency wages and experience involuntary unemployment. The model captures two key c...
Seven diabetic girls who presented with cyclical disturbance of diabetic control before the menarche are described. In six girls cyclical hyperglycaemia occurred and in one cyclical hypoglycaemia. The index case is described in detail, and is then included in a description of the main clinical features of all seven cases. Cyclical disturbance of diabetic control may present in diabetic girls fr...
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