نتایج جستجو برای: 034

تعداد نتایج: 1383  

2009
Andreas Dietrich

In economic development, structural change among the three main sectors of an economy accompanies with aggregate economic growth. Nevertheless the question whether economic growth causes structural change or change in the economic structure causes aggregate growth is still unanswered. To shed some more light on this issue, this study examines a Grangercausality test in a panel environment to de...

Journal: :American journal of hypertension 2003
Muhammad G Alam Yousri M Barri

BACKGROUND Isolated systolic hypertension is an important risk factor for cardiovascular events. The purpose of this study was to detect the prevalence of and to evaluate the effectiveness of currently available medications in the treatment of uncontrolled isolated systolic hypertension. METHODS We randomly selected a total of 585 patients with hypertension from our database. The two most rec...

2008
Peter Vecsernyés

We extend the Larson–Sweedler theorem [10] to weak Hopf algebras by proving that a finite dimensional weak bialgebra is a weak Hopf algebra iff it possesses a non-degenerate left integral. We show that the category of modules over a weak Hopf algebra is autonomous monoidal with semisimple unit and invertible modules. We also reveal the connection of invertible modules to left and right grouplik...

2017
Donghyun Kim

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Journal: :IEEE Transactions on Components, Packaging and Manufacturing Technology 2021

A photovoltaic-thermoelectric (PV-TE) hybrid system can be used for efficient thermal energy utilization from the generated waste heat in PV devices. In this article, an PV-TE with intelligent power-track switching technique and management based on conversion is proposed. To make output power of stable normalized, incorporated voltage circuit designed conversion. addition, a control-and-monitor...

2003
Oswald H. Siegmund Mark A. Gummin S-I Han R. Almy E. Apodaca W. Bergmann S. Deiker A. Lesser D. McCammon R. L. Kelley S. H. Moseley F. S. Porter C. K. Stahle A. E. Szymkowiak

We have characterized the intrinsic 1/f noise of ion-implanted silicon thermistors in the 0.05 – 0.5 K temperature range. This noise can have a significant effect on detector performance and needs to be taken into account in the design optimization of infrared bolometers and x-ray microcalorimeters. The noise can be reasonably well fit as ∆R/R fluctuations whose spectral density varies as 1/f a...

Journal: :Personality and individual differences 2007
Morris A Okun John Pugliese Karen S Rook

This study tested the hypothesis that the relation between extraversion and volunteering by older adults is fully mediated by social capital (participation in clubs and organizations, church attendance, and contact with friends). Data for this study come from 888 adults between the ages of 65-90 years old who participated in the Later Life Study of Social Exchanges (LLSSE). In support of our hy...

2015

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2010
Judith E. Deutsch

The Feldenkrais Method is a complementary approach to motor learning that purports to induce change in chronic motor behaviors. This preliminary study describes the effects of a Feldenkrais program on balance and quality of life in individuals with chronic neurological deficits following stroke. Two male (48 and 53 years old) and 2 female participants (61 and 62 years old), 1 to 2.5 years posts...

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