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Objective: The present study was conducted to identify the indicators of the urban natural hazards information model based on meta-combination analysis in order to create a model. Methodology: In the first stage, the meta-combined method was used. Out of 337 documents related to the research topic, 140 documents were analyzed. To examine and modify the components obtained during the trans-combination of qualitative method (with Delphi approach) which has been done by using a survey of experts with a questionnaire. Thus, the method of the present study is a mixture of polynomials Findings: The research was reviewed in three parts (informants with 50 indicators, tools and media with 66 indicators, content of information messages with 78 indicators), local government organizations using civil society and the private sector in implementing policies They play an effective role. A large number of different information tools have not been seen as appropriate for the time of crisis and after the crisis, and determining the standard and appropriate information messages to the community has an effective role in informing about risks. Originality: This study has for the first time examined the identification of natural hazard information indicators in Iran. In addition, by defining the characteristics of informants, tools, and media, the content of the information message in three crisis situations such as the information roadmap By determining the share of informants and appropriate tools and the content of the standard message, provides the most effective way of reporting risks to officials in three crisis situations

Objective: The main purpose of the present research is to provide a native pattern of post-crisis management in archives. Methodology: this research was carried out qualitatively with the use of grounded theory. The research community was crisis management specialists, as well as archives managers in Iran. Findings: The results of this pattern include the sections of the causal conditions, strategies, intervening conditions and the field, as well as the outcome of them. The causal conditions are due to factors such as the lack of proper policies at the national level for post-crisis management, the lack of proper and to combat fire, as well as the absence of organizations that do the act of freezing and falsifying records. Intervener conditions and areas is consisted of some issues such as the lack of a comprehensive crisis plan for the post-crisis phase in the archives, compliance with standards in the reconstruction of records by specialists, the use of disinfection and acidification methods to protect information resources against pests, use of the crisis map in the post-crisis phase and issues related to manpower. According to research findings, in archives, strategies such as modern resilience training, restoration of records, evaluation of building aftershocks, and state level due to accelerated reconstruction of records should be used. Eventually, the aftermath of the crisis management process in Iran's archives will have the effect of eliminating the effects of crises and returning to the pre-crisis stage.

Objective: , the present study examines the current status of the use of ontologies in the digital library area through the analysis of studies in this field. Methodology: The present research is a qualitative study using the meta-synthesis method. In order to collect data in this study, the library method, and to analyze data the seventh-step process of Sandelowski & Barroso for meta-synthesis was used. The research population of the study includes related studies (articles and dissertations) in the area of ontology applications in digital libraries retrieved from scientific databases. CASP evaluation checklist was used to ensure the quality of the studies. Finally, out of 267 retrieved studies, 43 titles were selected and analyzed. Findings: Analysis of studies in the area of ontology application in the digital library led to the identification of 4 categories, 8 components, and 48 dimensions in this field. The main categories include the application of ontology in digital library services, the application of ontology in digital library structures, the basis of ontology application in digital libraries, and the application of ontologies in covering the subject domain of digital libraries. Originality: In this study, which seems to have never been done before, a comprehensive analysis of the field of ontology application in digital libraries, the current situation and its dimensions were presented. Also, by clarifying the topics that have been less addressed, new research subjects were provided for researchers in this field.