درخت حوزه‌های تخصصی

The main purpose of this study was to provide a framework of effective components in Iranian championship sports with a data mining approach. The research method was qualitative. The advanced search was performed in the general framework of factors affecting the sports industry and development and integration with data-driven technologies. Based on the literature review, 15 frameworks in the field of sports and 13 frameworks for the development and integration of the sports industry with technology were identified. After the data analysis, a researcher-developed framework for the championship sports industry for the use of data-driven technologies and data mining was presented in three parts. In the first part, nine influential factors including athletes/champion teams, leagues/clubs, stadiums/sports venues, fans/spectators, brands, media, government, academic/research institutions, and technology companies, were identified. In the second part, a strategic plan based on the development and integration of sports industry with data-driven technologies and data mining was presented, which includes four stages: Identifying and selecting talents, pre-game and match preparation, in-game and match activities, and post-match and match analysis. All data-driven activities and data mining in the first and second sections were performed by the IBM data science analysis methodology presented in the third section. Then, a conceptual framework was provided to 7 experts and their opinions were collected through semi-structured interviews and focus group methods. This conceptual framework enables sports managers to plan for their organization and adopt appropriate strategies using data-driven technologies and data mining.

Background: Force plates are widely used in biomechanics and sports sciences to measure various aspects of human movement. The accuracy and reliability of force plate measurements are critical for valid data interpretation. Aim: The purpose of the study was to evaluate the validity and reliability of the Iranian force plate in the vertical, anterior-posterior, and medial-lateral directions using two manual dynamometers and a load cell. Materials and Methods: In this study, the force plate device utilized had a frequency of 1200 Hz and was manufactured by the Danesh Salar Iranian Company. Additionally, to determine the device's validity, we used Lafayette hand-held dynamometers manufactured in the United States and a load cell by Zemik. Pearson's correlation coefficient was employed to determine the validity of the force plate, while the internal consistency coefficient (ICC) was used to assess the force plate's reliability. Results: The study findings indicated a significant and high level of reliability between the maximum force obtained from the force plate device and manual dynamometer devices and load cell. Additionally, the internal consistency coefficient was found to be excellent (very high) for 20 trials in the three directions of vertical (0.98), anterior-posterior (0.96), and medial-lateral (0.97). Conclusion: The study demonstrated that the Iranian force plate is a reliable device for measuring maximum force in the three directions of vertical, anterior-posterior, and medial-lateral, with very high validity.

Purpose: On the other hand, fatigue is one of the most important indicators of aging syndrome. This study aimed to investigate the relationship between the level of physical activity and fatigue in elderly residents of rest homes in Tehran. Method: This was a descriptive correlational study in which 20 rest homes located in Tehran province constituted the study population. By visiting rest homes, the eligible subjects were chosen. Physical activity was measured by the Physical Activity Scale for the Elderly (PASE). The FACIT Fatigue Scale is a short, 13-item, easy to administer tool that measures an individual’s level of fatigue during their usual daily activities over the past week. Nutritional status was evaluated by mini nutritional assessment (MNA). Results: The results of statistical analysis indicated a significant and positive correlation between PASE and FACIT scores (r=0.48, p<0.01) while, there was a significant negative correlation between FACIT score and age (r=-0.23, p<0.01). Also, there was a significant positive correlation between MNA and FACIT (r=0.40, p<0.01). In addition, a significant positive correlation was found between MNA and PASE score (r=0.31, p<0.01). Conclusions: The findings of this study indicate that holding sports classes under the supervision of exercise physiologists is an essential matter to increase health and prevent age-related complications in elderly residents of Tehran rest homes.

The naval conflict has undergone many changes due to environmental factors and various tools, as well as the increasing growth and development of marine technologies, aligned with the inclusion of new tools and methods in naval conflict and electronic warfare at sea. The procedure taken by countries indicates the acceptance of electronic warfare as one of the methods and tools of agreed warfare. However, from the perspective of international humanitarian law, the use of electronic warfare tools and methods is challenging, and international treaty law lacks a legal rule regarding this method of warfare. Indeed, the only guideline that has sought to regulate electronic warfare is the Air and Missile Warfare Directive, which imposes no legal requirements on governments. So the question we are going to answer in this brief is that, can humanitarian law be applied to electronic warfare? The purpose of this study is to explain and investigate the various dimensions of naval electronic warfare from the perspective of international humanitarian law, and proving that international humanitarian law can be applied to the methods and tools of electronic warfare at sea. The research method selected for the present paper is an analytical-explanatory method and the data collection method used is the library research method.

Human identity and sense of self are heavily dependent on the body and its physical attributes. Accordingly, human evaluation of these physical characteristics affects thought, feeling, attitudes, perception and behavior, and bring about a diverse array of consequences. Though research findings have revealed that body image is associated with a number of mental, psychological, and behavioral deficiencies in life, the effect of this construct on variables of marital quality of conflicting couples is rarely investigated. Thus, the current research was an attempt to investigate the relationship between body image disturbance (BID) and two of its related sub-constructs, i.e. perceived partner’s ideal beauty (PPIB) and actual partners rating (APR) with sexual self-esteem (SEE) and quality of marital relationship (QMR). To this aim, 73 conflicting couples were selected through convenience and purpose sampling from a population of subjects referred to a counseling center in the city of Qom. These participants were administered appropriate scales on different variables. The data were collected and analyzed through SPSS. The results of Pearson’s correlation revealed a strong, negative correlation between the BID and the SEE, which was statistically significant (r = -.897, n = 73, p = .000). Also, a multiple regression analysis showed that both PPIB and APR statistically significantly predicted SSE, F (2, 70) = 145.927, p < .0005, R2= 0.807 and QMR, F (2, 70) = 97.758, p < .0005. R2= 0.736. It was concluded that in spite of a meager difference between husbands’ and wives’ views about body image, this variable and the two sub-constructs associated with it correlated with SEE and served as statistically significant predictors of SEE and QMR. These findings have implications for psychologists, psychotherapists, and counselors.