نتایج جستجو برای: bayesian method

تعداد نتایج: 1692596  

Journal: :Clinical Research and Trials 2019

Sample size determination is important in all statistical studies including longitudinal studies. This is usually done by considering a target power to reduce the costs of sampling. Choosing the right sample size using efficient methods, ensures that the researcher achieve goal of the study, by spending the least amount of energy, time and money. In this article, using a method based on simulat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1386

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1387

چکیده ندارد.

Journal: :journal of research in health sciences 0
najmeh tavakol soleiman kheiri morteza sedehi

background : time to donating blood plays a major role in a regular donor to becoming continues one. the aim of this study was to determine the effective factors on the interval between the blood donations. methods : in a longitudinal study in 2008, 864 samples of first-time donors in shahrekord blood transfusion center,  capital city of chaharmahal and bakhtiari province, iran were selected by...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده حسابداری و مدیریت 1387

چکیده ندارد.

Journal: :iranian red crescent medical journal 0
farid zayeri department of biostatistics, proteomics research center, faculty of paramedical sciences, shahid beheshti university of medical sciences, tehran, ir iran maedeh amini department of biostatistics and epidemiology, school of public health, hamadan university of medical sciences, hamadan, ir iran abbas moghimbeigi department of biostatistics and epidemiology, modeling of noncommunicable disease research center, school of public health, hamadan university of medical sciences, hamadan, ir iran; department of biostatistics and epidemiology, modeling of noncommunicable disease research center, school of public health, hamadan university of medical sciences, hamadan, ir iran. tel: +98-818380398, fax: +98-818380398 ali reza soltanian department of biostatistics and epidemiology, modeling of noncommunicable disease research center, school of public health, hamadan university of medical sciences, hamadan, ir iran nahid kholdi department of health and social medicine, shahed university faculty of medicine, tehran, ir iran mohammad gholami-fesharaki department of biostatistics, faculty of medical sciences, tarbiat modares university, tehran, ir iran

conclusions it was noted that a relatively high prevalence of growth failure was observed in the study sample. for minimizing the impact of significant risk factors on growth failure, the early detection of growth failure and its risk indicators is of great importance. in addition, when the focus of the analysis is on the different nested sources of variability and the data has a hierarchical s...

ژورنال: حسابداری مالی 2020

The importance of predicting bankruptcy risk of firms is increasing because of later financial crisis. Despite practical researchers trying to present models for predicting this risk, it seems that an optimum and acceptable model that is reliable for financial statement users and auditors in order to increase their ability in decision making and professional judgment has not been presented yet....

ژورنال: طب کار 2014
حلوانی, غلامحسین , زارع سخویدی, محمدجواد, سموری, فاطمه, فلاح زاده, حسین , مستغاثی, مهرداد, میهن پور, حمیده,

Background: expert judgments in combination with exposure models are used extensively in estimation of inhalational exposures in occupational environments. However, their reliability is not as good as conventional air sampling methods. The aim of this study was to investigate the applicability, weaknesses and strengths of Bayesian analysis in combination with SSA (Structured Subjective Assessme...

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