Effect of Organizational Citizenship Behaviour on Total Quality Management and Organizational Performance (Case study: Dana Insurance Co.)

This study examines the effect of organizational citizenship behaviour on organizational performance and total quality management. The objective of this study is functional survey in terms of data collection and it uses correlation to analyze data. Reviewing the literature and available models of organizational citizenship behaviour, total quality management and organizational performance, the important variables were identified and the model and hypotheses were developed. A researcher-made questionnaire was used to measure the variables. The studied sample included 217 workers of Dana Insurance, Tehran, selected by simple random sampling method. Test results of hypotheses using structural equation modeling indicate a significant effect of organizational citizenship behavior on components of total quality management as well as a significant effect of these components on organizational performance. Finally, based on the results obtained, suggestions and solutions were presented to the insurance company and future investigators

(R1951) Numerical Solution for a Class of Nonlinear Emden-Fowler Equations by Exponential Collocation Method

In this research, exponential approximation is used to solve a class of nonlinear Emden-Fowler equations. This method is based on the matrix forms of exponential functions and their derivatives using collocation points. To demonstrate the usefulness of the method, we apply it to some different problems. The numerical approximate solutions are compared with available (existing) exact (analytical) solutions to show the accuracy of the proposed method. The method has been checked with several examples to show its validity and reliability. The reported examples illustrate that the method is reasonably efficient and accurate