درخت حوزه‌های تخصصی

Uncertainty and critical conditions have become one of the most important challenges in the world today. In order to achieve superiority in economic competition, the supply chain must be designed in such a way that it has the necessary resilience in critical situations. One of the things that can be considered in this regard is the role of social media in the resilience of the supply chain. Considering the impact that social media has on business processes and considering the rapid and significant advances in information and communication technology, the use of social media in risk situations can be very effective. This research examines the role of social media in the resilience of the digital supply chain with a hybrid approach. The results of this research include 118 open codes, 43 core codes, and 13 main categories. The 13 selected codes of this research are placed in the form of five general categories of causal conditions, contextual conditions, intervening conditions, strategies, and consequences. Causal conditions include 2 selective codes, 8 concepts, and 21 open codes. The contextual conditions include 3 selected codes, 10 concepts, and 25 open codes. Intervening conditions include 2 optional codes, 7 concepts, and 21 open codes. The strategies include 2 selected codes, 7 concepts, and 19 open codes. The results include 4 selected codes, 11 concepts, and 32 open codes.

Religion is the core and key element of human life and as a travel organizer, it has played an important role in human life from the past to the present. The essence of a human being has been founded based on the primordial nature and spiritual dimension, which is not merely composed of material dimensions and, possibly, its existential spiritual dimension is a key element of humanity. Therefore, spirituality as a type of psychological quality -that is beyond religious beliefs and motivates man and creates feelings such as understanding divine solemnity and respect for creation in a human being- is an important factor in recognizing the nature of man in the perspective of monotheistic religions. This research was done by means of a qualitative-descriptive method, in the form of library studies and field interviews in two sections besides the content analysis method. In the fall and winter of 2017, an in-depth and semi-structured interview was conducted with 60 professors, experts and scholars of Zoroastrianism, Judaism, Christianity and Islam religions in three parts: defining the concept of spirituality, the place of travel in these religions, and the relationship between spirituality and travel. The results of the comparative studies show that spirituality is based on the human being's existential nature and its natural, spiritual, and immaterial dimension in order to help human beings to fulfill the purpose of creation as mentioned in monotheistic religions. In the meantime, human beings travel, especially do pilgrimages, as one of the sources of knowledge.

INTRODUCTION: The network of relief centers, which is a connected set of relief centers, rescue points, and rescue routes, is of utmost importance during an earthquake. This study aimed to model this network to identify the aid-receiving points and rescue routes, followed by the development of plans to improve the aid-giving process during an earthquake. METHODS: This descriptive-analytical study was conducted based on an applied research method and a quantitative approach. The required data were obtained through the library method (documents). The data used in this study included location information of relief centers (hospitals, crisis management centers, Red Crescent centers) and the transportation routes among them. These pieces of information were collected from related plans and documents. The obtained data related to the location of relief centers were analyzed using Spatial Analysis, and Network Analysis tools were utilized to analyze the transportation routes among the relief centers. FINDINGS: The findings in this study revealed the right places for receiving aid and the rescue routes that deliver aid from the aid-giving to the aid-receiving centers in the central zone of Tehran in the shortest time. Moreover, the relief centers were ranked based on their importance during a crisis. CONCLUSION: The results of this study show the number of required aid-receiving points in the central zone of Tehran through which the aid needed during a crisis can be delivered from rescue centers. The findings revealed which relief centers played a more significant role during an earthquake. The identification of these points and routes makes the provision of special planning possible during an earthquake.