introduction: motion of the patient during myocardial perfusion spect could potentially results in false perfusion defects. the effect of different reconstruction methods on these artifacts is not studied. clarification of the relation between the extent, severity and duration of motion with the resultant artifacts may be helpful in designing special soft wares for motion correction. this study...

This work analyzes the behavior of evolution strategies and their current mutation variants on a simple rotating dynamic problem. The degree of rotation is a parameter for the involved dynamism which enables systematic examinations. As a result the complex covariance matrix adaptation proves to be superior with slow rotation but with increasing dynamism those adaptation mechanism seldom find th...

This paper describes an empirical study of IT governance processes in complex organizations under conditions of environmental dynamism. Rooted in competing theories of organizational decisionmaking and knowledge-sharing, and based on a case study investigation of large, distributed organizations, this study examines the design and effectiveness of IT governance processes from both rational-anal...

This research develops the notion of environmental fit and flexibility and illustrates the importance of such fit empirically using survey data from 101 manufacturing firms. Two dimensions of environmental dynamism are identified and the fit between them and different approaches to flexibility are assessed. Hierarchical regressions provide evidence that flexibility is a stronger predictor of pe...

this paper has examined the phenomenon of convergence of per capita out put levels across the ic countries for the 1960-1998 periods. three concepts of convergence, i.e., sigma beta and relative beta, have been used. the estimated beta values reveals only a very weak convergence (?=.0014) across ic for 1960-1998 period. but when a more homogeneous group of countries were selected, the results s...

The global financial crisis at the end of 2007 financially influenced various countries, including Indonesia. Because Indonesia achieved highest growth in the Southeast Asia region during the recession, global investors shift their investment in Indonesia market. Therefore, it is very important to explore the stock dynamism in Indonesia. We propose a hybrid approach of fuzzy theorem, support ve...