AL-Mostansiriyah journal for arabic and international studies

The research aims to explore the impact of capital structure modeling on production business performance in order to arrive at a conclusion. Data were collected based on input from six Turkish cement producing companies. Analysis of the collected data was then used to achieve the goal. In the first part of the research, the concept of capital structure was explained, and the theories, namely the irrelevance theory, the trade-off theory (TOT), and their types, were discussed. The determinants of all capital structures and company-specific and capital structure models were also identified. The second part of the research was the practical part, where data on Turkish companies was used to achieve the goal. An input analysis of the capital structure of the selected sector was performed in order to generalize and clarify the conclusions regarding the capital structure of the analyzed companies. Where the main problem lies in determining the indicators of the capital structure that affect the performance of productive businesses. Performance was evaluated using economic value added (EVA) scale, correlation matrix, Cohen's scale, and SPSS.
We have developed some capital structure measures to investigate the links between these indicators and the overall performance of the organization. Correlation research results have shown significant improvements using regression analysis and principal components analysis to study the impact of certain unrelated elements on the overall success of the company. As a result, we recommend developing a new option that is willing to bear the risks associated with both options. The results of this research will serve as the basis for further research, including the collection of more relevant data and a further set of analyses.
Keywords: Capital Structure, Business Performance, Capital Modeling, State of Turkey.

Abstract
In this study, by implementing the title of the research which is the effect of internal marketing on enhancing the quality of educational services in Al-Mustansiriyah University with the mediating role of staff motivation, the researcher attempts to answer the question: "Does internal marketing have a significant effect on enhancing the quality of educational services in the Al-Mustansiriyah university with the mediating role of staff motivation? Therefore, the present research is applied in terms of purpose. The research method of the present study is descriptive and in terms of data collection is a survey-analytical research. The statistical population includes all the staff of Al-Mustansiriyah University. The statistical population of this study comprises approximately 400 people. Thus, according to Cochran's formula, a statistical sample of 196 staffs was randomly selected. In order to measure internal marketing, the standard Foreman and Manny internal marketing questionnaire was used, to measure staff motivation, Hackman and Oldham questionnaire was used, and to measure the service quality, the service quality questionnaire of higher education centers was used using SERVQUAL model and then they were analyzed using structural equations modeling method and SmartPLS software. Eventually, the results indicated that internal marketing has a positive and significant effect on increasing the quality of educational services in Al-Mustansiriyah University with the mediating role of staff motivation.
Keywords: Internal marketing, quality of educational services, staff motivation