Backgrounds and Objectives: Improvement of water quality standards and inability of mono layer filters in producing such quality caused researchers attended to multi layer filters. Due to specific characteristics of anthracite and leca can improve removal of organic materials and Surface over flow rate. The aim of this research was evaluation performance of dual media filters (anthracite/leca) ...

One of the fundamental aspects of education is social education. This  term of the education in consider to magnitude, complexity and comprehensiveness covering  all educational institutions and overlooks the education of individuals, in one hand, develop individual character and  the other hand, transmits  heritage to the next generation. In the media field, one of the most fundamental questi...

The risk of radiologic procedures is determined by different factors including contrast media, type of disease, procedure and skill of the physician. To reduce the contrast media-related risk, it is wise to use low osmolar contrast media (LOCM) in high-risk patients. When there is negligible cost difference between LOCM and other contrast media, it is wise to use LOCM for all patients. If an al...

Suicide issue and media reports about people who have died by suicide can affect vulnerable people. Portraying sensationalism of suicide in the media, similar to news stories, can lead to increase of suicide due to imitation. Evidence also suggests that way of reporting suicide related news plays a role in suicide rate. The first reflecting guide of the suicide news in the media was published i...

Educational media have significant importance in education due to different authorities and capabilities provides for professors and students. The purpose of this study was to compare educational media used by professors of medical science, technical engineering, and human science colleges in teaching-learning process from students’ viewpoint. This was descriptive survey research. For this, 224...