فهرست مطالب علی اظهری

Population increase, human presence, expansion of urbanization and irregular spatial have caused profound disturbances in the functional system of cities. Therefore, planning and management of natural events should be considered as a main purpose at all stages of planning and city development designs. The present study in term of purpose is considered as an applied research and using descriptive-analytical method. The worn-out textures of central district of the Urmia city with an area of 277/7 hectares as a case study is investigated. In this study, through the study of library sources and former studies, and as well as using experts opinions and specialists in the field of urban worn-out textures, effective indicators in the vulnerability of the study area in dimensions of physical, access, functional, environmental, economic, social, and managerial identification and the definition was. Then, using the Analytical Network Process (ANP) and Vikors Multi-Criteria Decision Making Method (VIKOR) to weighting each of the mentioned indicators and using Geographic Information System (GIS), the vulnerability maps of the area in different dimensions are provided. The results of the research show that from the study area of 36/11% has low vulnerability, 27/95% has moderate vulnerability and 35/22% has high vulnerability, which has the necessity of planning and taking measures to improve the environmental condition of urban worn-out textures in different dimensions.

Urban landscape in coastal tourism is one of the main elements for urban beautification, tourism development and responding to many material, spiritual and psychological needs of human is considered in urban spaces. The present research is applied in terms of purpose and its implementation method is descriptive-analytical. The aim of this study is the coastal tourism development at the Hasanlu Dam coast of Naqadeh by improving the quality of natural landscape sustainability. Data collection is based on two methods of documentary-library and field studies, through which the theoretical assessment of theoretical bases around the field of research and observation and field identification of scope and the use of the views of 30 experts and pundits in the field of urban planning has been used to extract effective components in improving natural landscape quality. Then, collected data were analyzed using Friedman and Swara tests. The results of the research show that the factor "strengthening the presence of private and public sector investors" and "reducing environmental pollutions" respectively have the most and least importance in improving the sustainability level of natural landscape. Finally, some effective measures have been taken to improve the level of the landscape of Hasanlu dam coast.

The aim of this study was to determine of the social-comparative feedback effect on acquisition and consolidation of a perceptual-motor skill in high school male students. In this study, 36 high school students were randomly assigned to three groups of 12 subjects with positive , negative and veridical social-comparative feedback groups. Pretest scores were recorded . Acquisition phase were five days and each subjects performed 10 blocks of the three trials badminton long serve in each day. After the each block, they received feedback of average scores in the form of positive ( higher than the actual rating ) , negative ( lower than the actual rating ) and veridical ( the actual rating ) due to the group to which they belong. Also after 72 hours detraining, consolidation test performed as well as pretest. After determining the data normality and homogeneity of variances to analyze data was used from repeated measures ANOVA, one-way ANOVA and Tukey posthoc test at the significant level 0.05 . The acquisition phase results showed that practice days were improved the performance of groups. But there was no significantly difference between groups. The consolidation of positive feedback group was significantly better than other groups. The findings suggest that positive social-comparative feedback affects the consolidation of a perceptual-motor skill such as targeted badminton long serve .