Background Previous studies have demonstrated that an increase in extracellular volume measured on MRI is directly proportionate to myocardial fibrosis. Myocardial extracellular volume is proportionate to partition coefficient (l) and extracellular volume = l × (1-hematocrit). l can be measured by assessing the T1 relaxation time before and after injection of contrast medium. The goal of this s...

GeoSentinel is a global surveillance network of travel medicine clinics that collect data from ill international travelers. Analyses have relied on proportionate morbidity calculations, but proportionate morbidity cannot estimate disease risk because healthy travelers are not included in the denominator. The authors evaluated the use of a case-control design, controlling for GeoSentinel site an...

This paper investigates the problem of implementing proportionate-type LMS family of algorithms in hardware for sparse adaptive filtering applications especially the network echo cancelation. We derive a re-formulated proportionate type algorithm through algorithm-architecture co-design methodology that can be pipelined and has an efficient architecture for hardware implementation. We study the...

1. Introduction For the statistical analysis of business growth the essay of Simon and Bonini (1958) and the posterior book of Ijiri and Simon (1977) represent classical references. In Bonini and Simon's essay two passages are particularly relevant: " … by introducing some simple variations into the assumptions of the stochastic model [of firm size]-but retaining the law of proportionate effect...

nowadays because of various factors, including inappropriate land use, and indiscriminate exploitation of water resources, soil and vegetation, wide areas of the country were exposed to destruction of lands and desertification. therefore dealing with this situation requires a comprehensive land use program (water and land) and appropriate environment potency. the study area is patom district of...

On typical echo paths, the proportionate normalized least-mean-squares (PNLMS) adaptation algorithm converges significantly faster than the normalized least-mean-squares (NLMS) algorithm generally used in echo cancelers to date. In PNLMS adaptation, the adaptation gain at each tap position varies from position to position and is roughly proportional at each tap position to the absolute value of...

time is one of the effective factors of education in physical education courses. the aim of this study was to investigate the proportion of time of general pe course (1) to the educational effectiveness of this course and its relationship with the effectiveness of different aspects of education. the method was descriptive-survey and the data were gathered by field method. the population include...