according to studies, self-esteem plays an important role in mental health. self-esteem is also one of the most important correlates of anxiety, especially social anxiety. being anxiety in adolescents make negative impacts on their academic performance, mental health and social function. this study aims to investigate the relationship between self-esteem and mental health, according to the medi...

ôbjective: self-efficacy beliefs determine how people feel, think, motivate themselves and behave. regarding to similar findings it is supposed that concept of self efficacy has a general role on mental health. the present study focused on examining the relationships between self-efficacy and symptoms of depression, anxiety, worry and social avoidance in a large sample of normal students (n=549...

We consider a setting where agents select among competing products of unknown quality by costly sequential search. The agents are active on an online social network, and late movers benefit from possibly being able to see early movers’ purchase decisions. In this setting we consider the impact of advertising by firms, and the incentives of the underlying social network platform. We consider dis...

having a positive approach toward the affairs also involves a comprehensive and systematic one in order to represent suitable solutions coincided with social realities. under the current situations, one of them is called social capital which is refered as missing link . although this term doesn’t have any background in social literature, but its importance and usage in almost any field of socia...

In social advertising, ads are targeted based on underlying social networks and their content is tailored with information that pertains to the social relationship. This paper explores the effectiveness of social advertising using data from field tests of different ads on Facebook. We find evidence that social advertising is effective, and that this efficacy seems to stem mainly from the abilit...

social interest: the new challenge of health sector and academic achievement undoubtedly the most valuable asset of any society is its manpower. among the most critical factors for success in all areas, institutions and organizations, including industrial, office, service and training is that healthy relationships are based on cooperation and solidarity among community members. mental health of...