نتایج جستجو برای: experimental setting

تعداد نتایج: 951714  

Journal: :iranian endodontic journal 0
shuang shi dan-dan zhang xu chen zhi-fan bao ya-juan guo

introduction: this study compared the apical sealing ability of a bioceramic based root canal repair filling material (iroot fs) with mineral trioxide aggregate (mta). methods and materials: forty single-canal teeth were prepared and randomly divided into two experimental groups ( n =18) and two control groups ( n =2). teeth in experimental groups were retrofilled with either mta or iroot fs. a...

Journal: :archives of clinical infectious diseases 0
ali asghar kolahi department of community medicine, faculty of medicine, shahid beheshti university, m.c., tehran, ir iran; department of community medicine, faculty of medicine, shahid beheshti university, m.c., tehran, ir iran. email: shahrokh tahmooreszadeh department of community medicine, faculty of medicine, shahid beheshti university, m.c., tehran, ir iran latif gachkar infectious diseases and tropical medicine research center, shahid beheshti university, m.c., tehran, ir iran masoud mardani infectious diseases and tropical medicine research center, shahid beheshti university, m.c., tehran, ir iran

three subheadings including treatment, prevention and control and diagnosis methods got the most priorities, respectively. although about half of the priorities are related to two subheadings including treatment and diagnosis methods, research priorities of prevention and control methods (22% of all priorities) indicate the importance of prevention for clinicians who gave scores to the titles. ...

Journal: :journal of dental research, dental clinics, dental prospects 0
naser asl aminabadi faculty of dentistry, tabriz university of medical sciences firoz pouralibaba leila erfanparast ebrahim najafpour zahra jamali sina ebrahim adhami

background and aims. temperament has been suggested to be a predictive factor for the child’s reaction to dental treatment especially in young ages. the aim of this study was to assess the relationship between temperament and child behavior in relation to age in the dental setting. materials and methods. in this descriptive-analytical study, 190 children, aged 1 to 7 years, who visited dentist ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

building on previous studies on the effectiveness of different types of written corrective feedback, the present study aimed at investigating whether direct focused corrective feedback and direct unfocused corrective feedback produced any differential effects on the accurate use of english articles by efl learners across two different proficiency levels (low and high). in current study, the par...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - پژوهشکده زبان و گویش 1393

abstract the purpose of this study is twofold: on the one hand, it is intended to see what kind of noticing-the –gap activity (teacher generated vs. learner generated) is more efficient in teaching l2 grammar in classroom language learning. on the other hand, it is an attempt to determine which approach of the noticing-the-gap- activity is more effective in the long- term retention of grammar...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده روانشناسی و علوم تربیتی 1388

the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1391

the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
sayed hossein karparvarfard azam vakili farahani

in order to increase the efficiency of the conveyance of the granular solids, a new experimental set-up is designed. the test rig has longitudinal trapezoidal slots in its conveying pipes. through experimentation, a correlation for friction factor in terms of solid mass flow rate, fluid flow rate and froude number is presented. it is shown that the mixture friction factor for pipes with inner t...

Mohammad Alipour, Samaneh Alemi Neisi

The present investigation sought to comparatively explore the effect of length of residence (LOR) as well as EFL instruction on the pragmatic competence of Iranian learners. The participants were 45 EFL learners in Iran and 45 learners in Canada selected based on snowball sampling and each group was divided into three sub-groups based on the years of learning English in an EFL or a natural sett...

Journal: :journal of medical signals and sensors 0
zahra vahabi saeed kermani

unknown noise and artifacts present in medical signals with  non-linear fuzzy filter will be estimate and then removed. an adaptive neuro-fuzzy interference system which has a nonlinear  structure presented  for the noise function prediction by before samples. this paper is about a neuro-fuzzy method to estimate unknown noise of electrocardiogram (ecg) signal. adaptive neural combined with fuzz...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید