background: this study sought the relationship between social support, mental health and demographic factors in new students of tehran university (2005-06). methods: this cross-sectional descriptive study enrolled 2916 university students. subjects were evaluated using demographic questionnaire, general health questionnaire-12 and social support scale. statistical analysis was performed by anov...

In the paper four semirings for solving social networks problems are constructed. The closures of the matrix of a given signed graph over balance and cluster semirings can be used to decide whether the graph is balanced or clusterable. The closure of relational matrix over geodetic semiring contains for every pair of vertices and the length and the number of geodesics; and for geosetic semiring...

Background. Nowadays, employees' use of social networks at the workplace is increasing, which creates opportunities and challenges. Objectives. The current study aimed at investigating the negative consequences of the use of social networks at the workplace from the viewpoint of the employees of the sports and youth departments. Methods. The current descriptive survey was conducted on Golesta...

Numerous real-world relations can be represented by signed networks with positive links (e.g., trust) and negative links (e.g., distrust). Link analysis plays a crucial role in understanding the link formation and can advance various tasks in social network analysis such as link prediction. The majority of existing works on link analysis have focused on unsigned social networks. The existence o...

This research has been conducted mainly to examine the role of social networks in promoting urban culture in Karaj citizens in 2018. The research intends to investigate the role of attendance in social networks and the type of using it to promote urban culture and social networks' role in the legalism, responsibility, participation, and universality that are the components of urban culture. Thi...