Social trust is one of the crucial aspects of human relationship which underlying the participation and cooperation among people of communities. Social trust accelerates the participation in economics, social, political and cultural fields and also enhances people inclination to interact with variety groups inside the society. In absence of trust, there is no chance to observe democratic system, social stability, balance and solidarity inside the communities. Media is one of the major factors of developing social trust which can enhance or decrease the trust between audiences by presenting an elegant or hideous images, therefore the comparison between paper and social media and their relationships with the level of social trust was carried out in this paper. The age of Tehrani respondents as our statistical society ranged from 18 to 60 years old in our survey and the sample based on Cochran formula obtained 356. Sampling was carried out randomly which its validity was approved by authorities and its reliability was estimated 0.74% which calculated by Cronbach’s alpha. Results indicate that there is direct relationship between average of social trust point and the rate of using the paper media although has an inverse relationship with social trust. The level of trust among males who use paper media are higher than females yet but it is completely vice versa in social media. To prompt the social trust, the media should recognize the issues which people are interest in, their needs and propensities. Accordingly it seems to be essential to analyze the content of social media to governmental domains approaches to public areas thus social trust will mount.

The urban expansion has negative consequences like the increase in built areas and those allocated by roads, the decrease of green areas and the quality of existing public services and the increase of violence towards public and private property. This study aims at studying the urban expansion in Beirut south suburb as a case study for more than 50 years using Remote Sensing (RS) and Geographic information System (GIS) in order to treat the actual situation and limit the future extension. This study analyzes urban expansion between 1963 and 2016 according to two main factors: Land-use change and road network expansion. To study those factors, a comparison has been done between the land-use map and the road network’s map using areal and satellite images for the study area. This study shows the increase in built area to accommodate the population increase, the regression of green areas, the spread of spontaneous grouping, building violations and violence towards public and private property as a result of the increased numbers of arrivals to the region and the increase of non-permeable areas (roads and built areas) which increase the flooding probability during winter. In order to limit the urban expansion, it was supposed to modify the building law in the study area.

In this paper a case study of a company was studied to improve its production capacity to reach the optimum. Different aspects were investigated, including the speed of the running machines, the number of workers running each machine, the operating shifts, the machines utilization and the working environment. Data were collected for the current situation, then suggested solution were implemented and effect on improving the production capacity was realized. It was found that all these factors have significant effect on improving the production capacity. Machines should be utilized effectively and run at the optimum speed, to improve the production and avoid extra maintenance cost. Moreover, as the working environment is improved as the productivity of workers is getting better, which will be reflected on the company overall production.