درخت حوزه‌های تخصصی

Recent studies on financial markets have demonstrated that technical analysis can help us effectively predict the stock market index trend. Business systems are widely used for stock market analysis. This paper uses a genetic algorithm (GA) to develop a stock market trading optimization system. Our proposed system can generate a decision-making strategy for buying, holding, and selling stocks for each day and generate high returns for each stock. The system consists of two stages: removing restricted stocks and producing a stock trading strategy. Accordingly, evolutionary computation, like GA, is highly promising because of its intelligence, flexibility, and search strength (fast and efficient). The multiple-objective nature of the utilized algorithm can be regarded as the center of gravity of the research question. The proper functioning or malfunctioning of the resulting portfolio management can be employed as a benchmark for selecting or discarding the algorithm. On the other hand, the research question is focused on the application of technical analysis indicators. Therefore, both aspects of the research question, namely the multiple-objective nature of the algorithm in terms of the analysis method and technical indicators in terms of features selected for analysis, must be taken into account.

Purpose: Quality of education in multi-grade classrooms is important in the education system, neglect of which is associated with the weakness of the education model and related factors. Methodology: The present study was conducted to validate a model for the quality of education in multi-grade classrooms in primary schools as exploratory research. In qualitative study, thematic analysis was used by an inductive approach, and in quantitative study, descriptive survey was used. Given the components, an 81-item questionnaire was provided. To validate the questionnaire, convergent validity, content validity and construct validity were used. The statistical population of the research included teachers, principals and educational leaders of multi-grade classrooms in all the cities of North Khorasan Province, including 1203 multi-grade classrooms. By Cochran's formula, 349 people were selected as the research sample. The structural model of the research was fitted and the path coefficients of the research model were analyzed by the bootstrap method (resampling and sequential sampling) and the Student's t-test statistic. Findings: According to the results, 0.823% of the changes in the quality of multi-grade classrooms have been predicted by the sub-components of teachers' professional competence and characteristics, macro policies, the state of schools, family model and themes related to the students. Conclusion: All questions were confirmed due to a factor load above 0.5, and the model had a good fit.

Purpose: The aim of the present study is to validate the applied model for the school management excellence program implementation. Methodology: This study was a correlation and survey methods. All 20 middle and high schools located in districts 1 and 2 of Ardabil city, which have been the implementers of the excellence program during the last two years, were selected and their human resources formed the statistical population. The researcher-made questionnaire with Cronbach’s alpha coefficient of 0.97 was distributed in 10 schools with the participation of 152 teachers using stratified random sampling method. Smart-PLS and SPSS soft wares were employed to analyze the data using structural equations and Hoteling’s T test. Findings: The findings showed that the current research model meets desirable validity. Therefore, the effective factors identified in the implementation of the excellence program were found to be valid. The results via Hoteling’s T test also showed that there is a significant difference between the factors identified in successful and unsuccessful schools according to the performances of the years 2018 and 2019. The factors of management and leadership style and human resources training were found to meet the highest and lowest discrepancies between successful and unsuccessful schools, respectively. Conclusion: The present results indicated that the factors of the space and resources, efforts of custodians, organizational culture, role of parents, environmental factors, management and leadership style, principal’s features, human resources training, organizational health and usefulness of teachers play a key role in achieving program-centered, self-assessment, school-centered and total quality consequences.

Purpose: The purpose of this paper is to understand of the presence of entrepreneurial competencies in the curriculum of teacher education in Iran. Methodology: approach – This was a qualitative research with an interview and content analysis approach. The research population consisted of two groups of entrepreneurs with teacher education and the curriculum syllabus a bachelor of teacher education. The research tools included a semi-structured interview, and a content analysis checklist. Findings: The research findings resulted in the extraction of 42 competencies in the form of three classes of knowledge, attitude and skill. Results also indicated that the presence of entrepreneurial competencies among the syllabus of teacher education curriculum does not meet a suitable level. Conclusion: Therefore, the officials and curriculum developers should take the necessary steps to revise the curriculum syllabus according to the addition of intended competencies in this area to push teacher students towards entrepreneurship.