flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...

Introduction: Accreditation of educational institutions and educational therapeutic centers as an important step in the implementation of the” development and innovation of medical education plan “in recent years has been carried out and its pathology is an important necessity to achieve its goals, i.e. guaranteeing and improving the quality of education. The purpose of this study is to determi...

Introduction: Thalassemia is the most prevalent genetic abnormality in Iran and Mediterranean area. Increased incidence of Thalassemia with moderate or severe clinical symptoms could lead to decreased economic and human ability of society.  Objectives: The study aimed to survey pre-university and high school students’ level of knowledge on Thalassemia in Guilan. Methods: In thi...

in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...