فهرست مطالب arezo mohammadi

The concept of social health, along with other aspects of health (physical, mental, spiritual), is a significant component and is influenced by many factors. Security, particularly social security is one of the most important factors related to social health.. Due to this importance, this study aimed at identifying the relationship between social security and social health of youth (15-29) years in Ghaen. The study relies on social health theory of Keyes and modern approach to social security.  ترجمه از: فارسیThe study is a survey with sample size of 376 which were randomly selected. Findings from the analyses of the data indicate significant and direct relationship between social security and social health. In addition, relationship between social security and social integration, acceptance, participation and social prosperity is positive and significant. Social acceptance has the highest and social integration has the lowest correlation with social security. At the same time, there is no significant relationship between social security and social cohesion.

This study aims to investigate the impact of cooperative learning and individual conceptual map on the students’ motivation and academic achievement. The research method is quasi-experimental with pretest and posttest design and a control group. The statistical population comprises all high school 1st grade girls in Hamedan. The statistical sample consists of 60 individuals who were selected using the cluster random sampling method. In this study, 20 participants were taught with cooperative learning method, 20 were taught by means of individual conceptual map methods, and 20 individuals formed the control group. The data were collected using academic motivation questionnaire and academic achievement test. In order to analyze the data, the researcher adopted covariance analysis test. The findings suggest that teaching with cooperative learning method and individual conceptual map leads to an improvement in the students’ academic motivation and academic achievement (P<0.001). The research results suggest that for the teachers to raise the level of students’ academic achievement and motivation, they should pay attention to the role of motivational factors in teaching with cooperative learning method and individual conceptual map.

Dyes are organic materials with complicated structures that are usually، toxic، carcinogenic، mutagenic، nonbiodegredable properties and the most important pollutants of textile industrial wastewater. The goal of this study was to survey the feasibility application of Municipal Sewage Sludge as an adsorbent for removal of Acid Blue 25. The sub goals of the research were to determine the adsorption isotherm، effects of primery concentration of dye، adsorbent dose، contact time and pH for the adsorption of Acid Blue 25 with produced Adsorbent from Municipal Sewage Sludge. Amss was prepared under laboratory conditions by using of oven at 105 for 24h and washed with Hcl (3 mol) for 2h and، at last by using of electerical furnace at 600c for 2h under N2 gas. The chemical composition and solid structure of Amss was analysed using X-ray diffraction (XRD). The concentration of dye was measured by photometric method (600nm). Predominant composition of Amss is SiO2. The results of this study showed that: The pH value of 3، contact time 60 min، was determined as optimum condition. The most dye removal efficiency of %97. 74 was obtained for concentration 50ppm. Adsorption of Acid Blue 25 with Amss complies with freundlich isotherm (R2=0. 96). Based on data obtained in this study، it can be concluded that adsorption by Amss is an efficient method for dye removal from liquid solution.