رضا یوسفی سعیدآبادی

Purpose: Entrepreneurial leadership plays an effective role in improving the performance of various businesses including small and medium businesses. As a result, the current research was conducted with the aim of presenting a model of the role of entrepreneurial leadership in the performance of active small and medium businesses in the field of nanotechnology in Tehran. Methodology: The method of this research was of mixed exploratory type (qualitative and quantitative). The population of the present study in the qualitative section was the policy experts of the nanotechnology industry, which number of 17 of them were selected as a sample according to the principle of theoretical saturation and with the purposeful sampling method. Also, the population of present study in the quantitative section was the managers and experts of small and medium businesses of nanotechnology industry whit number 1434 people, which 303 people of them were selected as a sample according to Cochran's formula and with the available sampling method. The data of the qualitative and quantitative sections were collected with methods of semi-structured interview and researcher-made questionnaires, respectively which whose psychometric indicators were confirmed and analyzed with methods of thematic analysis in MAXQDA software and exploratory factor analysis and structural equation modeling in SPSS and LISREL software, respectively. Findings: The findings of the first part of current research showed that the model of the role of entrepreneurial leadership in the performance of active small and medium businesses in the field of nanotechnology had 13 sub-factors in the 5 main factors of guidance, support, coaching, facilitation and entrepreneurship. Also, the findings of the second part of the present study showed that the factor load, average variance extracted and reliability of all factors were appropriate. In addition, the model of the role of entrepreneurial leadership in the performance of small and medium-sized businesses active in the field of nanotechnology had a significant effect on all five main factors and each factor with its sub-factors (P<0.05). Also, the findings of the second part of the current research showed that the factor load, average variance extracted and reliability of all factors were appropriate. In addition, the model of the role of entrepreneurial leadership in the performance of active small and medium businesses in the field of nanotechnology had a significant effect on all five main factors and each main factor on its sub-factors (P<0.05). Conclusion: The model of the role of entrepreneurial leadership in the performance of active small and medium businesses in the field of nanotechnology has many practical implications for the activists in the field of nanotechnology industry, and they can according to the identified factors provide the basis for improving entrepreneurial leadership.

Purpose: The overall purpose of this study was to investigate the role of Scaffolding in nature school in order to promote sustainable development in education. This research was practical in terms of purpose and survey in terms of descriptive method. Methodology: the present study was practical in terms of purpose and survey in terms of descriptive method. This statistical population consisted of 75 principals, deputies and teachers of the nature school in Mazandaran province. According to Cochran's formula, 63 people were selected as a sample using simple random sampling method. Scaffolding questionnaire with 60 questions and sustainable development questionnaire with 25 questions were used to collect data. The face and content validity of the tools were confirmed by experts and their reliability was calculated using Cronbach's alpha coefficient for Scaffolding questionnaire 0.92 and sustainable development 0.89. Structural equation test was used to analyze the data. Findings: The results showed that; The role of Scaffolding in nature school on sustainable development in education is positive and significant and the proposed model has a good fit. Conclusion: Scaffolding is an important concept in teaching and learning in which teachers and students create meaningful relationships between teachers 'cultural knowledge and students' daily experience.

Purpose: The aim of this study was to identify the dimensions and components of competency of managerial skills of cultural women in education in Mazandaran province. Methodology: This research was applied and in terms of method, it was mixed (qualitative and quantitative). In the qualitative part, the statistical population consisted of experts, professors and senior managers of education and in a small stage, it consisted of all school principals, principals and experts of education departments of Mazandaran province with a number of 1800 people who 317 people were selected by cluster sampling method. The measurement tool was a researcher-made questionnaire whose construct validity was calculated using factor analysis method and the reliability value through Cronbach's alpha coefficient was 0.94. Findings: at 95% confidence level (= 0.05); Findings showed that the four components of spiritual competence, communication competence, competence to work in a masculine environment and personality competence constitute the indigenous model of managerial competencies of cultural women in Mazandaran province. The dimension of spiritual competence is one of the components of spiritual attitude and spirituality in the work process; The dimension of communication competence of the components of interpersonal communication at the sub-level levels and interpersonal communication at the upper levels; The dimension of work competencies in the male environment consists of components of professional and interpersonal solidarity and showing the scope of communication, and the dimension of personality competencies consists of the components of extraversion and self-construction and coaching (<0.05). Conclusion: Paying attention to the competencies of women cultural management skills in education is one of the most important and necessary issues in the development of advanced and growing societies that if we pay attention to spiritual competencies, communication, working in a masculine environment and personality, can be improved and upgraded.