The aim of this study was to investigate the mediating role of communication skills and academic skills in relation to emotion-seeking and metacognitive beliefs in the risk-taking of adolescent students with high-risk behaviors. The method of the present study is descriptive correlation and is a structural equation model. The statistical population of the present study was all male and female h...

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

Introduction: Substance use disorders are increasing in women, in contrast, withdrawal and failure in treatment have a high rate in them and it is necessary to identify the specific causes of female relapse. Therefore, the purpose of this study was to identify the factors affecting the relapse of substance use based on high-risk situations in Iranian women with opioid use disorder. Methods: Th...

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...