مطالب

The Turban helmet is a type of war helmet during the 14th to 16th centuries AD in Middle East countries. This type of helmet has become known by Western scholars by this name because of the special decorations that made it look like a turban as well as the visibility of the helmet from under the warriors’ turban. Based on the numerous documents remaining, one can say that the use of Turban helmets was popular in Middle East territories’ armies during the Middle Ages. Despite being widely used and in style for more than two centuries and among many west Asian countries, among all the remaining samples of this type of middle eastern helmet, only two distinct styles, the Turkoman and the Ottoman styles, have been examined and introduced. This can be due to a large number of remaining samples of these two being kept for years in the armouries of the Ottoman Empire. Apart from these two known styles, few studies have been done so far on investigating other possible types of turban helmets. The purpose of this research is to study the turban helmets that were popular among the armies of the Il-khanid, Jalayirid, Muzaffarid, Timurid, Turkoman, and Safavid that ruled respectively in the cultural Iran region, by relying on the remaining documents from the 14th to the 16th centuries, such as the collection of helmets and illustrated manuscripts. The results of this research reveal that the changes that occurred in the making of turban helmets during the 14th to the 16th centuries have led to the representation of four different types of helmets: Mongolian style, Timurid style, Turkoman style, and Qizilbash style.

Although some factors affecting children’s participation in physical activity and sports are well known, the important social factors that influence children’s participation in physical activity and sports have not been properly identified. In this study, we aimed to design a model of social factors influencing children’s participation in physical activity and sports. The method used in the present research is descriptive-correlation based on the structural equation method. The statistical sample of the study consisted of 384 students who were selected through convenience sampling method. Social factors such as parental socioeconomic status, social support, social competence, and social acceptance were measured using standard questionnaires. Structural equation modelling was used to analyze data. The results of the path analysis showed that parental socioeconomic status, social support, social competence and social acceptance had significant effects on motivation (all T>1.96). Moreover, motivation had significant effect on intention to physical activity (T=3.628). Finally, intention to physical activity had significant effect on physical activity (T=5.189). These results show that social factors can be considered in the process of children’s participation in physical activity and sports. In this regard, the role of parents, physical education teachers and friends is very important.

Purpose: Considering the role and importance of social security, this study was conducted with the aim of providing a model of the impact of modern communication tools on social security, emphasizing the mediating role of cultural and social threats of Western media against the Islamic Republic of Iran. Methodology: The present study was a cross-sectional applied research. The research community consisted of 123 officials and activists in the field of social security of related organizations. The sample size was determined based on the table of Krejcie & Morgan, 93 people who were selected by stratified random sampling method. The research tool was a researcher-made questionnaire, whose face validity was confirmed by the opinion of experts and its reliability was confirmed by Cronbach's alpha method for the entire questionnaire, new means of communication, cultural and social threats, and social security as 0.94, 0.96, 0.95 and 91. 0 was calculated. Data were analyzed by structural equation modeling method in Lisrel software. Findings: The findings showed that the model of the effect of new means of communication on social security with emphasis on the mediating role of cultural and social threats of Western media against the Islamic Republic of Iran had a suitable fit. Also, new means of communication had a direct and significant effect on cultural and social threats and social security, and cultural and social threats on social security. In addition, new means of communication had an indirect and significant effect on social security by mediating cultural and social threats (P<0.05). Conclusion: Considering the effect of variables, it is necessary to plan to increase social security through the adjustment of new means of communication and cultural and social threats.

Purpose: After-sales service includes a wide range of services and provides the basis for a long and easy use of the product. The present study was conducted with the aim of designing a curriculum model for after-sales service in the automobile industry in Iran. Methodology: This was a mixed exploratory study (qualitative and quantitative). The research population in both the qualitative and quantitative sections were the CEOs and after-sales service assistants of the automobile industry, training managers and technical experts of the automobile industry, and according to the principle of theoretical saturation, 18 of them were selected as a sample using the snowball sampling method. The research tools were demographic information form and semi-structured interview with experts, the data of which were analyzed in the qualitative part with open, central and selective coding method in MAXQDA-10 software and in the quantitative part with exploratory factor analysis method in Smart PLS-3 software. Findings: The findings showed that the after-sales service curriculum model of the automobile industry in Iran had 61 indicators in 6 categories of efficient and effective management, skilled and trained human resources, use of new technologies, training development, evaluation and customer satisfaction. Other findings showed that the after-sales service curriculum model of the automobile industry in Iran has 57 items (removal of 4 items due to factor loading less than 0.40) in 6 factors of efficient and effective management, skilled and trained manpower, use of new technologies, It was the development of training, evaluation and customer satisfaction. The validity of the factors based on the factor loading was higher than 0.60, the convergent validity was higher than 0.50 and the average variance extracted was higher than 0.70, and the reliability was higher than 0.80 with Cronbach's alpha method. In addition, the 6-factor model of the after-sales service curriculum of the automobile industry in Iran had a good fit and the effect of the said model had a direct and significant effect on all 6 factors (P<0.05). Conclusion: Managers and planners of the automobile industry and its after-sales services in Iran can use 6 categories of efficient and effective management, skilled and trained manpower, use of new technologies, training development, evaluation and customer satisfaction to improve the after-sales service curriculum. car industry to use.