attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

عوامل زیادی در عملکرد آزمونی زبان آموزان در متن یادگیری زبان موثر می باشد.این تحقیق تلاشی است در زمینه بررسی نقشی که سبک های شناختی و شخصیتی بر عملکرد یادگیرنده های زبانی در سوالات c-test z-test و تست های چند گزینه ای دارد. در این تحقیق سعی شده است تا نقش درون گرایی، برون گرایی، تکانشی و فکری بودن بر روی عملکرد شرکت کنندگان در این آزمون ها بررسی شود. به منظور دستیابی این هدف 212 یادگیرنده زبان ...

Introduction: Diabetes is a chronic illness which needs specific self care behaviors to the end of life. On the other hand, studies have shown that improvement in knowledge and practice of diabetic patients brings about improvement of metabolic status for which self care education specially with active method (active involvement of diabetic patients) is necessary. So, this study has been conduc...

Introduction and purpose: Balance disorder and falling is one of the most important consequences of aging, worrying consequences that entails, including bone fractures .The purpose of this study was to determine the effect of eight weeks virtual reality-based balance training on the balance of elderly men. Materials and Methods: The present study was a semi-experimental and applied to 26 elder...

Introduction: Sleeping is one of the most important human innate needs, and its disruption due to a variety of illnesses, can cause anxiety, distress, and adverse mental health conditions in the individual.  Objective: This study aimed to examine the relationship of sleep quality with general health in patients with heart failure. Materials and Methods: This is a cross-sectional analytical st...

this thesis attempts to measure learning styles, self efficacy and intrinsic motivation as predictors of iranian ielts reading comprehension. in order to address this issue, a quantitative study was conducted on some randomly selected intact students at ferdowsi university. these two groups were assigned as they were undergraduate (ba=91) and graduate (ma =74) students; they were all aged betwe...

دراین پژوهش تاثیر آموزش لغات از طریق عبارات واژگانی ‏‎(lexical phrases)‎‏ بر یادگیری آنها بررسی شده است . بدین منظور یک گروه همگن متشکل از 64 دانش آموز مقطع پیش دانشگاهی به صورت تصادفی به دو گروه دیگر تقسیم شدند . در گروه ‏‎a‎‏ که شامل 32 دانش آموز بود ، لغات جدید در بافتهای عبارات واژگانی تدریس شد . در گروه ‏‎b‎‏ که شامل 34 دانش آموز ، همان لغات در بافت های معمولی ‏‎(ordinary & manipulated con...

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...