نتایج جستجو برای: control studies

تعداد نتایج: 2580223  

Journal: :Development and psychopathology 2002
Susan D Calkins Nathan A Fox

Self-regulatory processes are believed to be critical to early personality and behavioral adjustment. Such processes can be observed on multiple levels, including the physiological, attentional, emotional, cognitive, and interpersonal domains of functioning. Data from several longitudinal studies suggest links between early temperamental tendencies such as behavioral inhibition and frustration ...

2015
Rikke L. Bundgaard-Nielsen Brett J. Baker Christian H. Kroos Mark Harvey Catherine T. Best Niels O. Schiller

Native speech perception is generally assumed to be highly efficient and accurate. Very little research has, however, directly examined the limitations of native perception, especially for contrasts that are only minimally differentiated acoustically and articulatorily. Here, we demonstrate that native speech perception may indeed be more difficult than is often assumed, where phonemes are high...

Background and aims: Despite substantial advances in the etiology of autism spectrum disorder (ASD),the environmental risk factors have not yet been well understood. The present study investigated theassociation between ASD, and maternal and perinatal risk factors.Methods: This matched, case-control study was conducted in Hamadan, the west of Iran, fromNovember 2015 to M...

M Ashrafi N Jahangiri SH Jahanian Sadatmahalleh,

Background The aim of this study was to evaluate the hypothesis that infertility may result in a decrease in quality of life (QOL). MaterialsAndMethods In this case control study that carried out on 150 women with infertility and 150 women undergone TL as the control group. The participants were asked to fill out the Short Form Health Survey (SF-12) questionnaire, a generic instrument to measur...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم انسانی 1393

the present study was conducted to investigate the role of summary in teaching grammar process on pre-university students. to this end, 48 male pre-university students in semnan were participants. they were math class that we called experimental group and science class as control group. in order to make sure there was no significant difference in proficiency level of two groups. a pre-test wa...

Background Endometriosis is defined as overgrowth of endometrial tissue outside the uterine cavity. Diet may play a role in the aetiology of endometriosis through effects on oxidative stress, prostaglandin metabolism, and steroid hormone levels. The objective of this paper is to assess the role of diet on risk of endometriosis among infertile Iranian women. MaterialsAndMethods In this case cont...

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

the present study aimed to investigate the possible effects of focused highlighted error feedback on grammatical accuracy of writing among iranian intermediate efl learners. after selecting 52 homogenous participants from among 70 university students attending azad university of rasht and randomly dividing them into two intact groups of 26 students, the researcher exposed the participants of th...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1391

مقدمه و هدف شل شدن پیچ اباتمنت همواره از معضلات ترمیم های متکی بر ایمپلنت بوده است. از آنجایی که در مراحل کلینیکی بعضی از دندانپزشکان با استفاده از آچار دستی و بدون استفاده ازratchet torque control اقدام به محکم کردن اجزاء ایمپلنت می کنند و نیز میزان اعمال نیرو به روش دستی در دندانپزشکان مختلف متفاوت است ، لازم است در این موارد از میزان محکم شدن ایمپلنت مطمئن شویم. هدف این مطالعه بررسی نیروی...

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