نتایج جستجو برای: multi stage sampling

تعداد نتایج: 992420  

Journal: :مجله بین المللی کودکان و نوجوانان 0
javad salehi psychology department gholamhossein foomani farideh ghamari

background and objective: different personality aspects including identity styles, self-efficacy, and cognitive abilities can play a certain role in successful learning result in high educational success. we assessed the value of identity styles, self-efficacy and metacognition beliefs for predicting the level of educational success in female high-school students. methods: in a cross-sectional ...

Journal: :international journal of agricultural science and research 2011
sh. soltani a. ahmadpour s. feali

the general purpose of this article is to identify the influencing factors on rural women participation inagricultural extension programs in mazandaran province. therefore, using multi-stage sampling, 300 ruralwomen were selected randomly. the research instrument was a semi-structured questionnaire. results showthat rural women participation in agricultural extension programs is at average leve...

Journal: :international journal of pediatrics 0
mohamad reza khodabakhsh department of psychology allameh tabatabaei university, tehran, iran. ahmad borjali department of psychology allameh tabatabaei university, tehran, iran faramarz sohrabi associate professor, department of psychology allameh tabatabaei university, tehran, iran. noor ali farrokhi farrokhi associate professor, department of psychology allameh tabatabaei university, tehran, iran.

abstract background: the prevalence of disordered eating behaviors has been reported to increase in recent decades; therefore, the search for specific psychological variables that may contribute to the etiology of this disorder is of great importance. the current study examined the mediating role of the emotion regulation difficulties on the relationship between body image disturbance and disor...

Journal: :زن در توسعه و سیاست 0
محمدعلی سیف ربیعی دستیار پزشکی اجتماعی دانشگاه علوم پزشکی تهران فهیمه رمضانی تهرانی دانشیار واحد ملی و تحقیقات بهداشت باروری زینت نادیا حتمی اپیدمیولوژیست و استادیار گروه پزشکی اجتماعی دانشگاه تهران

violence against women especially partner violence involves 1/3 of women worldwide. this research is performed with an analytic cross sectional design and its’ purpose is to determine the prevalence of intimate partner violence among married women in medical science catchments area ( tehran university) during the year of 2001. 348 married women were selected from 6 health centers by multi-stage...

Journal: :سالمند 0
لیلی صالحی leili salehi tehran university of medical sciences,tehran, iranدانشگاه علوم پزشکی تهران حسن افتخار اردبیلی hassan eftekhar ardebili tehran university of medical sciences,tehran, iranدانشگاه علوم پزشکی تهران کاظم محمد kazem mohammad tehran university of medical sciences,tehran, iranدانشگاه علوم پزشکی تهران محمد حسین تقدیسی mohammad hossein taghdisi tehran university of medical sciences,tehran, iranدانشگاه علوم پزشکی تهران داود شجاعی زاده davoud shogaei zadeh tehran university of medical sciences,tehran, iranدانشگاه علوم پزشکی تهران

objectives: this study was done to assess the some factors which influence on fruit and vegetable consumption among iranian's elderly. methods and materials: this study was a cross sectional study which was done on 400 elderly people through a two stages sampling method. 10 elderly centers were selected from all of elderly centers in tehran. during second stage, a systematic random samplin...

Journal: :Journal of physics 2023

Abstract We suggest a new platform for examination of quantum statistical phenomena in many-body interacting systems – multi-qubit Bose-Einstein-condensate (BEC) trap. Ideally, it is suitable demonstrating manifestations supremacy such through atomic boson sampling excited-state occupations. This wholly different than the linear-interferometer which uses Gaussian non-interacting non-equilibrium...

Journal: :Journal of Chemical Physics 2021

In recent years, pi-conjugated polymers are attracting considerable interest in view of their light-dependent torsional reorganization around the backbone, which determines peculiar light-emitting properties. Motivated by designing conjugated with tunable photoswitchable pathways, we devised a computational framework to enhance sampling conformational space and at same time estimate ground exci...

Journal: :Proceedings of the ... AAAI Conference on Artificial Intelligence 2021

Molecule optimization is a fundamental task for accelerating drug discovery, with the goal of generating new valid molecules that maximize multiple properties while maintaining similarity to input molecule. Existing generative models and reinforcement learning approaches made initial success, but still face difficulties in simultaneously optimizing properties. To address such challenges, we pro...

Journal: :international journal of agricultural science, research and technology in extension and education systems 0
daniel ekpa department of agricultural economics and extension, federal university dutsin-ma, katsina state, nigeria segun adeola department of agricultural economics and extension, federal university dutsin-ma, katsina state, nigeria umar mukhtar department of agricultural economics and extension, federal university, dutse, jigawa state, nigeria mary ekpa department of agricultural economics and extension, federal university dutsin-ma, katsina state, nigeria

the study is an analysis of processing methods, marketing channels, and profitability determinants of selected cassava products in kogi state, nigeria. the study was carried out in kogi east senatorial district of the state. a multi-stage sampling technique was employed in the selection of 120 respondents from whom information were collected and analyzed. the data used for the study were collec...

Journal: :مدیریت دولتی 0
مرتضی اکبری استادیار دانشکدة کارآفرینی دانشگاه تهران، تهران، ایران سید محمود حسینی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، تهران، ایران سید یوسف حجازی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، تهران، ایران احمد رضوانفر استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، تهران، ایران

this research was conducted with the purpose of analyzing improvement mechanisms of human resource development (hrd) in agriculture faculties. this survey research was descriptive-explanatory. the population of this research consisted of all agricultural faculty members of iran universities (n=1178). data was collected using multi-stage random sampling method. finally, 248 questionnaires were c...

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