فهرست مطالب vahid shojaee

The aim of the present study was explaining and identifying marketing methods in sports startups with a effectuation entrepreneurial approach. The method of the present research is a qualitative method which in terms of purpose is the exploratory one, in terms of results is the basic and applied researches and based on the paradigm is postmodernist research. The statistical population of the study included experts in the field of marketing and sports management and top entrepreneurs of sports startups. Sampling was done by purposive sampling method. The semi-structured, open-ended questionnaires of the research for in-depth interviews with experts was acquired by studying researches related to sports start-ups and entrepreneurial approaches and effectuation marketing, and identifying the main and effective components of it. Interviews continued until theoretical saturation was achieved. In order to identify the effective factors , the grounded- theory was used. Data analysis was done by MAXQDA version 2020. The results showed that there are 4 main categories of public environment, operational environment, organizational factors and individual factors as effective factors on the entry of sports startups into domestic and foreign markets. Finally, a paradigm model (tree diagram) of the factors affecting the entry of sports startups into domestic and foreign markets was designed.by following this model, managers and entrepreneurs in the field of sports startups with special attention to the categories and indicators expressed in the model, can provide contexts for success of entering into domestic and foreign markets.

The purpose of this study was to determine the efficiency of the Physical Education Deputies of the General Education Offices (located in the provinces) of the Iranian Education Ministry throughout the country using the CCR model. The present study is, in terms of paradigm, a meta-proof research with a quantitative approach, and is an applied one in terms of purpose. The technique used in this study is data envelopment analysis. The statistical population includes the deputies of physical education headquartered in the 31 provinces of Iran. The tool used was a five-valued questionnaire, which was evaluated on the basis of a fuzzy method. The content and face validity of the questionnaire was approved by the focus group of the research, including supervisors and consultants and two experts in the field of sports management based on CVR and CVI forms. Finally, experts, including 30 senior managers of the Ministry of Education, deputies of physical education at the national level and sports teachers who had international championships, commented on the importance of each of the input and output indicators. The results of the study, which was about the efficiency of the deputy of physical education of the provinces based on the CCR model in the years 1394-98, showed that the provinces of Ardabil, Ilam, Tehran, Khorasan Razavi, Northern Khorasan, and Khuzestan enjoyed the necessary efficiency. The outcomes of the sensitivity analysis of inputs and outputs in the CCR model indicated that "budget" and "championship sport", respectively, played a greater role in determining the efficiency of the deputies. Also, the results of the correlation test showed that there was a significant relationship between the average inputs and outputs and the average efficiency of the deputies in the CCR model.

The aim of the current research work is to identify the effective factors on the empowerment of judo coaches and referees, focusing on the standardization uniformity of education.

This research work is based on approach is qualitative, and in terms of strategy is a phenomenological research work. The research work is applied one with a developmental-exploratory nature. The statistical population in the qualitative phase of the research was experts and specialists in the field of sports management and experts in the field of judo, 20 people were considered as a statistical sample of the qualitative part by purposeful sampling method. The data collection method was in the form of in-depth and semi-structured interviews. The reliability of the interviews in the qualitative part of the research was confirmed using test-retest reliability.

The results of the research work showed that in the section of factors affecting empowerment with a focus on the standardization of training in Iran's judo coaches and referees, a total of 120 primary propositions were extracted from a total of 20 interviews, and finally 85 primary propositions with a frequency of 503 were used as indicators and effective codes on the empowerment of Iran's judo coaches and referees focusing on the standardization training. Among these, 3 main categories (integrated human resources, standard organizational activities, educational functions and duties) and 7 sub-categories of 17 concepts were categorized as concepts and categories effective on the empowerment of Iran's judo coaches and referees in the form of more abstract codes.

The Education Committee of the Judo Federation of the Islamic Republic of Iran, in turn, should play a key and important role in the empowerment programs of trainers and instructors of this sport by improving the status of standard organizational activities and educational functions and duties.

The aim of this study is to identify the factors affecting the international development of table tennis in Iran. From the paradigm perspective, this research is an interpretive research, a qualitative approach, a grounded theory strategy, and a hidden content analysis tactic. The present study is of exploratory nature. The statistical population of this research included the table tennis experts, , the coaches of the Iranian national table tennis teams, senior managers in the Ministry of Sports and Youth and the Table Tennis Federation, were members of the scientific board in the field of sports management. Data were collected through in-depth interviews with these individuals. 226 Preliminary codes were extracted from the initial interviews regarding the factors influencing the improvement of Iranian international table tennis, with the frequency of 460. 13 main categories and 37 pivotal categories were considered regarding the factors affecting the international development of table tennis in Iran. The highest coefficient of importance belonged to managerial factors and specialized and technical factor that were calculated with the coefficient of importance 104 and 80, respectively. Also, the lowest coefficient of importance was related to the category of government and governance, the nature of the field and the media factor that were as 7, 12 and 13, respectively. Managers of the Iranian Table Tennis Federation should consider the role of causal conditions (economic, social factors, infrastructure development and technical and professional factors), intervening conditions (motivational factors, media factor, nature of table tennis) and background conditions (talent identification, managerial factor, government and governance, educational institutions and the development of public sports) as factors influencing the international development of table tennis.

The talent identification program is to identify and develop talented athletes to reach the highest level of sport in the world. The study is to identify the factors affecting the development of talent in Iranian volleyball. This research was qualitative and exploratory in nature, which is considered as an applied research. The population was all volleyball experts including the coaches of the national volleyball teams of Iran, senior managers and directors of the Talent Search Committee of the Ministry of Sports and Youth and the Volleyball Federation, and the members of the faculty of sports management. The sampling method was purposive and snowballing, which was followed by 17 in-depth interviews. The responses were analyzed using the MAXQDA software version 18. From the analysis of the interviews, 15 factors were identified that they were national stars and heroes, training principles and design, education, inter-organizational communication in government institutions, human resource activities, motivational factors, intellectual and psychological factors, anthropometric characteristics, academies, volleyball federation, Higher education, legal factors, family support, value and attitude factors, facilities and equipment. Among these dimensions, the Volleyball Federation factor, academies, anthropometric characteristics, education and training principles and design played the most important role in talent development. In general, the results showed that various factors affect the development of talent management in volleyball in the country. So, it is suggested that research findings be at the forefront of talent search activities in volleyball-affiliated organizations, especially the country's volleyball federation and its affiliates. In addition, research results play a significant role in completing the theoretical foundations of sports management.

In this paper, the problem of robust H∞ control for continuous-time affine nonlinear singular systems with norm-bounded time-varying uncertainties is addressed. The problem is solved locally by employing two different approaches. The first approach is an extended version of the guaranteed cost control method, adapted in order to conform to affine nonlinear singular systems. The second approach is an indirect method in which a known auxiliary system is presented and it is shown that any control law which solves the H∞ control problem for this auxiliary system, also solves the robust H∞ control problem for the original unknown system. In both approaches, a modified solution of the H∞ control problem is used which is founded on the nonlinear two-person zero-sum differential games theory. As a result, sufficient conditions for the solvability of the considered robust H∞ control problem are provided in terms of a generalized Hamilton-Jacobi-Isaacs inequality. In order to show the consistency of our results, solving the robust H∞ control problem for linear uncertain singular systems is considered, and, it is shown that the corresponding results in linear domain are the special cases of our results. Finally, a numerical example is given to illustrate the applicability of the presented approaches.

The aim of this research was Designing and testing a model for promotion of sport insurance system in Iran. The research method is descriptive-correlational. Statistical population included managers, experts and experts in sport insurance in the Iran. The statistical sample was estimated sufficiently for structural equation modeling in PLS software (138 persons) and sampled by Theoretical (judgment) method. The research tool was a questionnaire extracted from the qualitative (systematic exploration) part of the research consisting of 15 variables and 58 questions on a 5-point Likert scale. Validity of the questionnaire was assessed by content validity (11 experts), reliability (Cronbach's alpha: 0.87) and construct validity (model fitting). Findings were analyzed by PLS software (version 3). Modeling results showed that strategic management efficiency has significant effect on law updating, financial management optimization, facility development, human capital empowerment and communication capacity building (With coefficients: 0.58, 0.62, 0.54, 0.59 and 0.55). Also, communication capacity building and human empowerment (with coefficients of 0.60 and 0.25) had a significant effect on insurance education and culture. The effect of upgrading the surveillance system on improving insurance premiums and improving insurance damages was also significant (with coefficients: 0.56 and 0.36). Finally, expanding coverage range, promoting insurance literacy and enhancing customer satisfaction (with coefficients of 0.59, 0.74, and 0.81, respectively) had a significant effect on improving the penetration coefficient of sports insurance. Generally, based on the findings of the study it can be said that the model of promotion of the sports insurance system consists of a systematic flow of structural, functional, process, functional and consequential factors.

The aim of this study was to investigate the enterprise architecture (EA) of the status quo at the Sports and Youth General Directorate (SYGD) of Mazandaran Province in order to design a model of the desirable situation. The research method was applied in terms of objectives and descriptive-survey based on quantitative and qualitative analysis using documentary and Delphi methods. The statistical population of this study consisted of all managers and the sample size was 140 persons using Morgan table. Data were collected with a researcher-made questionnaire and Cronbach's alpha coefficient of reliability was 0.88. To analyze the data, Delphi document analysis methods done with a comparative and deductive approach using SPSS software. The results show that the status quo is moderate in most of the qualitative features (alignment, convergence, integrity, Maintenance and Development, Efficiency, and Security) requires improvements. Therefore, a new service-based model was designed to draw the future status, which was evaluated using the Delphi method. Taking the overall results of this research together, it can be concluded that the proposed model is appropriate to a great extent and acceptable to Iranian architects and specialists.

Cerebrovascular event is one of the important causes of death in the world. Carotid artery stenosis is one of main risk factors of cerebrovascular events. Risk factors for atherosclerosis are found in carotid artery stenosis. Thus, coincidence of coronary artery disease and carotid artery stenosis were observed. In an individual with high risk of coronary artery plaque formation, peripheral artery stenosis is imaginable. Histological morphology and plaque formation in coronary artery disease and carotid artery stenosis are similar and they occur together most of the time. Although many similar findings were shown in coronary artery disease and carotid artery stenosis, carotid artery stenosis is associated with more severe stenosis compare with coronary artery disease. Carotid artery stenosis does not have exact similar biological activity with coronary artery disease.Some invasive and non-invasive diagnostic methods are established for carotid artery stenosis detection.Same medical and surgical treatment techniques could be used for carotid artery stenosis management that vary due to patient-to-patient specific conditions.