in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...

to teach english adequately, qualified teachers are needed. unfortunately, there are still teachers who are teaching english without an academic degree in tefl. it is necessary for teachers to have a major in english to have subject knowledge, but it is not sufficient. teachers need to have an understanding of the social, cultural, moral, ethical, and pedagogical issues of education and practic...

Study the factors like the role of family and Relationships of members, is essential in survey of quality of life. Increasing divorce statistics indicate that the family has failed to create a sense of satisfaction in couples, Especially women who are more likely than men divorce applicant. Divorce is a problem that is causing the emotional complexity of family and decrease the quality of life....

Considering the importance of a comprehensive range of quality of life, Factors affecting, especially the role of the family and the relationships among its members, it seems essential. Rising divorce statistics indicate that the family has failed to create a sense of satisfaction in couples, especially women who divorce are more likely than men. Divorce is a problem that is causing the emotion...

this study investigates the relationship between field-related cognitive styles and global reading comprehension of hypertext. technically, field dependency is prevailing dominance of field on perception of parts, while global comprehension is skim-like reading to grasp the general content. in this research project, 60 senior and junior students of arak university majoring in english literature...

The purpose of this study is to predict High-risk behavior based on self-differentiation and interpersonal problems. The research population consisted of female students of Isfahan University. 100 students were selected by multistage cluster sampling. The research method is a descriptive correlation. The research tools include of Risk-Taking Scale (Zadehmohamady et al, 2011), Differentiation of...

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Background: The present study aimed to determine the effectiveness of self-differentiation training on intimacy, compatibility and assertiveness of married women. Materials and methods: The research method was semi-experimental using a pre-test, post-test and follow up with the control group. The research population was all married women whose terms of marriage were under 5 years and their age ...