this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...

on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...

The insurance industry is considered as one of the indicators of development, and as a major economic institution that supports the activities of other institutions. Therefore, the structure, operation, and efficiency of the country's insurance market play a significant role in the growth and development of the industry as well as the growth and development of the economy. Considering the impor...

this study was intended to analyze the listening tapescripts of the elementary and pre-intermediate levels of total english textbooks from the pragmatic dimension of language functions and speech acts in order to see whether the listening tasks are pragmatically informative or not. for this purpose, 8 conversations from the two books were selected randomly, and then, the two pragmatic models of...

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

Background: Each organization needs to provide an environment that is smooth, tensile, comfortable and affordable with appropriate physical and emotional conditions for each employee, a safe and relaxed working environment, so that they can work with a sense of job satisfaction. The present study examines the ergonomic conditions of libraries in public universities in Ahwaz and its impact on j...