---

As the most important channel of political communication, mass media can play sensitive and determinant role in political participation. So by the way, doing scientific research about the role of mass media in political participation is very important and have enough necessary. With respect to it, the goal of the study was to identify the relationship between mass media usage and political participation. Based on the opinions of Lerner, implant, Replacement, Mobilization. Research method is survey method; hence 407 citizens with over 19 years old were selected and studied using random sampling. Research – made questionnaire was used to collected data which its validity was approved using nominal validity and its reliability using Cranach' alpha. The results indicated that there is a significant relationship between usage level of TV, press and non – textbook with the level of political participation. It also showed that there are significant different between gender and political participation, where as the measure of male political participation is higher than female 

---

The purpose of this study was to investigate social factors affecting environmental behavior among citizens of Gorgan city. This descriptive-analytic study was done by cross sectional survey on 400 citizens of Gorgan city in 1396. The standard information collection tool is standard. A multi-stage random sampling method was used for sampling. The collected data were analyzed by parametric test (T-test), variance analysis and correlation test. The results of the study indicate that there is a relationship between age and environmental behavior, but there is no relationship between sex and marital status with environmental behavior. Also, according to the research findings, there is a relationship between the economic beneficiary, media consumption and social trust of citizens of Gorgan city with environmental behavior.