درخت حوزه‌های تخصصی

Purpose: Today, many scholars believe that accelerating the exchange of knowledge and information with emphasis on the central role of knowledge and science is crucial to achieve comprehensive development. In fact, a knowledge-based society is recognized as a paradigm for development. Investing in knowledge-based foundations in the rural areas can also lead the rural community towards the future and play a role in national and international arenas. The purpose of this study is to model structural equations affecting knowledge-based realization in Dehkhoda Village in Hamidieh County. Design/methodology/approach: The design of this study is of applied-theoretical type and adopts a descriptive-analytical research method. Research data were also extracted from library resources and field surveys. For this purpose, by visiting statistical centers and exploring through statistics, a comprehensive dataset was compiled for the research along with a self-administered questionnaire. The population of this study were the residents of Dehkhoda Village inhabiting permanently in this village in 2018 (n=1980). Of this statistical population, a sample size of n=321 was selected using Cochran formula for rural community. Pearson correlation coefficient, single sample T, multivariate regression and path analysis were used to analyze the data and test hypotheses. These tests were performed using SPSS.22 and Amos software. Findings: The results suggested that information and communication technology (ICT), education, management, government agencies and NGOs (as independent variables) were positively and directly related to knowledge-based realization (as dependent variable) in Dehkhoda Village. SEM indicators also exhibited that the model developed in this study is backed up by the research data, with all indicators confirming the utility of the SEM. According to the results of research, it can be argued that public satisfaction with management indicators, government and non-governmental organizations is higher than average, whereas satisfaction with ICT and education is lower than average. Practical implications: Rural knowledge-centeredness requires decentralization, reduction in government tenure, the reinforcement of voluntary and non-voluntary public institutions in villages, the modification of rural management laws and regulations to create and integrate rural management system, the assignment of a large portion of the government's executive duties and responsibilities to rural sheriffdom, and the transfer of facilities and financial resources to it.

Air pollution in different cities of the world is a complex mixture of toxic components, including particulate matter (PM), mainly produced by combustion processes. A cross-sectional analytical study was conducted to investigate the relationship between air pollutants and mortality from cardiorespiratory diseases in Mashhad. To this end, the data on mortality from cardiorespiratory diseases in 2012-2013 were obtained from Razavi Khorasan Health Organization. The mean daily concentration of air pollutants, including carbon monoxide (CO), PM with a diameter of 10 micrometers or less (PM₁₀), and PM_2.5 was calculated. The results of data analysis showed that there was a relationship between PM₁₀ concentration and the rate of mortality from cardiovascular diseases in men. In addition, a significant relationship was observed between PM₁₀ concentration and the rate of mortality from respiratory diseases in both men and women. The results indicated that there was a significant relationship between PM_2.5 concentration and the rate of mortality from cardiorespiratory diseases in both men and women. There was also a significant relationship between CO concentration and the rate of mortality from respiratory diseases in women. The results demonstrated that PM_2.5 has the greatest effect on mortality from cardiorespiratory diseases. The study findings were reported within the context of environmental communication by using the media tools to raise public awareness of the adverse effects of pollutants.

Because of the rising energy prices and the spread of environmental crises; today, societies need to purposive education for Sustainable Development of the Environment (SDE). Therefore, it seems that universities, as the organizations for teaching, are suitable to be chosen as the starting point for environmental protection. Hence Green Universities (GU) can play an important role in the SDE through education for environmental awareness and the use of Green Information Technology (GIT). The aim of the present study was to investigate the mediating role of GIT Acceptance in the relationship between GU and SDE. The study is categorized as applied research in terms of purpose and designed as a descriptive correlational study in terms of the data collection method. The statistical population of the research included the staff of the science and research branch of Azad University in the year 2018, from which 168 people were selected according to Cochran’s formula by stratified random sampling. The data collection tool was a questionnaire. The validity of the questionnaire was confirmed to be convergent and consistent, and the reliability was confirmed using Cronbach's alpha coefficient. In order to analyze the data, the SPSS 25 software was used for the inferential statistics, and the LISREL8.8 software was used to fit the path. The results showed that the dimensions of GU had a positive and significant relationship with acceptance of GIT and SDE. Also, GIT, as a mediator variable, generated a positive relationship between the dimensions of GU and SDE.