Investigation of the effect of nanographene and nanographene oxide on physical and mechanical properties of natural rubber nanocomposites

The present study was conducted with the aim of testing the causal model of the feeling of loneliness of Twitter users based on lifestyle and stress coping styles with the mediation of social network dependence. 200 people were selected as a statistical sample based on the purposeful sampling method. Subjects responded to the questionnaires of addiction to social networks by Ahmadi et al. (2015), loneliness by Russell et al. (1980), lifestyle by Miller and Smith (1988), and coping styles by Lazarus and Folkman (1984). The validity of the questionnaires was examined and confirmed based on the content validity using the opinion of experts, the validity based on the opinion of a number of the statistical community and the structure using the factor analysis method. , coping styles with stress were estimated as 0.80, feelings of loneliness as 0.79, and dependence on social networks as 0.78. Data analysis was carried out at two levels, descriptive statistics and inferential statistics, including modeling of structural equations by Lisrel software. took The results showed that all the hypotheses of the research had a favorable fit. Life style with an impact factor of 0.52 and stress coping styles with an impact factor of 0.56 are indirectly related to loneliness.