مطالب

In the Industry 4.0 era, many pioneering industries are leveraging emerging technologies such as the Internet of Things (IoT) as solutions in the digital age. One of the largest and most active industries in Iran is the food industry, which stands to benefit significantly from these advancements. Achieving a sustainable competitive advantage is often possible at the level of the supply chain, where companies use information and communication technologies, such as IoT, to coordinate information, finances, and materials among supply chain actors. This research aimed to identify the key success factors (KSFs) for implementing IoT in the food supply chain. Firstly, through a systematic literature review, the KSFs for IoT implementation in the food supply chain were identified. To develop a measurement model, confirmatory factor analysis using structural equation modeling was employed, making the research applied-descriptive. A questionnaire was designed and completed by 142 members of the "Amadeh Laziz" supply chain (a case study), who were selected using a stratified random sampling method. Confirmatory factor analysis and LISREL 8.83 were then used to validate the proposed model. Finally, the cause-and-effect relationship between KSFs in IoT implementation in the food supply chain was analyzed using Grey DEMATEL. Based on the confirmatory factor analysis findings, the KSFs in implementing IoT in the food supply chain were identified as technical, economic, legal, cultural and social, security, applicability of IoT throughout the supply chain, and implementation of IoT applications. Thus, the measurement model included eight factors and 27 measures. According to the cause-and-effect relationship findings, "Implementation of IoT applications" and "Economic" factors were found to be mostly influenced, while "Applicability of IoT throughout the supply chain" and "Technical" factors were recognized as the most influential. The results of this research can guide food producers and technology policymakers in their supply chains and help avoid trial and error in IoT implementation by leveraging global and national experiences.

  Subjective : Psychological problems are involved in many psychosomatic disorders. Gastric ulcer is also related to psychological problems as one of the psychosomatic disorders. This research was conducted with the aim of comparison of emotion regulation in gastric ulcer sufferers and non-sufferers. Methods : This research is descriptive and causal-comparative. 100 patients with gastric ulcer and referred to Imam Hussein Hospital in Tehran in 2022 were selected by convenience sampling method and compared with 100 of their companions who did not have gastric ulcer. Both groups responded to Difficulties in Emotion Regulation Scale (DERS). Data were analyzed with multivariate analysis of variance and SPSS-21 software. Results : The findings showed that the total score of difficulties in emotion regulation and its subscales (non-acceptance of negative emotions, difficulties engaging in goal-directed behaviors, difficulties controlling impulsive behaviors, limited access to effective emotion regulation strategies, lack of emotional awareness, lack of emotional clarity) in patients with gastric ulcer is significantly higher than of non-afflicted people (P<0.001). Conclusion : According to this finding, it can be concluded that the difficulty in regulating emotions may play a role in gastric ulcers. It seems that patients with gastric ulcer are less able to identify and understand their emotions and less able to manage their emotions properly. Therefore, the accumulation of psychological pressure caused by negative emotions can cause their symptoms to appear or intensify.

The ancient site of Chiasi, located in Kuhdasht, Lorestan province, boasts a diverse cultural sequence spanning from prehistoric times to the Islamic era. Initial information about this site was first published in Goff’s archaeological reports in 1971, which highlighted the presence of surface materials belonging to the Chalcolithic Age and the Uruk period. Unfortunately, Tepe Chiasi has suffered significant damage over time, primarily due to natural erosion and, more recently, human activities. As a result, many of its cultural contexts have been lost irretrievably. To prevent further destruction caused by urban development in Kuhdasht, extensive archaeological studies were conducted at the Chiasi site. The research project began with a systematic survey of the site, followed by the excavation with 18 trenches measuring 1.5 × 1.5m to delimit the core zone and suggest the protective buffer zone. The analysis of the collected data revealed a lengthy cultural sequence at the site, ranging from the Neolithic Age to the fourth and fifth centuries AH.