نتایج جستجو برای: posterior distribution

تعداد نتایج: 711755  

2013
Leonid Pekelis

Two related methods exist for sampling from posterior distributions of the MLE with a known prior Newton & Raftery (1994) [8], Efron (2011) [4]. We compare them by examining asymptotic Edgeworth expansions of their pivotal distributions. The result is that Newton & Raftery (1994) is 2nd order consistent to the posterior distribution with prior proportional to the Fisher Information, under some ...

Journal: :Experimental eye research 1997
H Gong M Johnson W Ye R D Kamm T F Freddo

In our previous studies, we noted a non-uniform distribution of protein tracer preferentially entering the anterior stromal lamellae of the cornea from the limbus. Given other differences reported previously between the anterior and posterior lamellae of the cornea, and the number of corneal disorders in which abnormalities are preferentially confined to either the anterior or posterior lamella...

ژورنال: پژوهش های ریاضی 2016
Aghamohammadi , A, Mohammadi , S,

Longitudinal studies include the important parts of epidemiological surveys, clinical trials and social studies. In longitudinal studies, measurement of the responses is conducted repeatedly through time. Often, the main goal is to characterize the change in responses over time and the factors that influence the change. Recently, to analyze this kind of data, quantile regression has been taken ...

Journal: :iranian journal of radiology 0
jeong min ko department of radiology, college of medicine, st. vincent’s hospital, catholic university of korea, suwon, korea jisoon kim department of medicine, advocate christ medical center, university of illinois, chicago, usa soo-an park department of orthopedic surgery, college of medicine, uijeongbu st. mary’s hospital, catholic university of korea, uijeongbu, korea kwang nam jin department of radiology, boramae medical center, seoul metropolitan government seoul national university, seoul, korea myeong im ahn department of radiology, college of medicine, seoul st. mary’s hospital, catholic university of korea, seoul, korea seok-chan kim department of internal medicine, division of respiratory and critical care, seoul st. mary’s hospital, catholic university of korea, seoul, korea

conclusion safety-related parameters of posterolateral and posterior approaches in supine thoracentesis are far better than that of the conventional lateral approach. background in patients who have difficulty sitting, thoracentesis is attempted in a supine position via lateral approach. recently, a new table has been designed for supine thoracentesis. this table has gaps that allow access to t...

Journal: :acta medica iranica 0
a. mirshemirani j. kouranloo m. rouzrokh m. n. sadeghiyan a. khaleghnejad

the standard approach to management of high imperforate anus is colostomy in the newborn period followed by posterior saggital anorectoplasty (psarp) at 6 to 12 months of age. the purpose of this study was to determine whether a one-stage repair by primary psarp in the newborn period could be performed without clear determent to the patient’s functional result. totally 30 newborns with high imp...

2016
Darfiana Nur Elizabeth Stojanovski E. Stojanovski

A hierarchical Bayesian model is investigated. This model can accommodate study heterogeneity in metaanalyses. The joint posterior distribution is derived by multiplying the likelihood and priors on this model. The conditional posterior distribution of all parameters is obtained for Gibbs sampler algorithm. A simulation study is then performed to demonstrate the validity of the Gibbs sampler in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1388

based on the latest records of typhlops vermicularis merrem, 1820 from iran, this species is distributed in the northern and southern regions of the country. in this study, new records of typhlops vermicularis are presented and it is shown that distribution range of this species is extended towards the eastern and western iran, and according to the new distribution map, it can be assumed that t...

Journal: :مجله علوم آماری 0
محمدرضا فریدروحانی mohammad reza farid rohani department of statistics, shahid beheshti university, tehran, iran.گروه آمار، دانشگاه شهید بهشتی خلیل شفیعی هولیقی khalil shafiei holighi department of statistics, shahid beheshti university, tehran, iran.گروه آمار، دانشگاه شهید بهشتی

in recent years, some statisticians have studied the signal detection problem by using the random field theory. in this paper we have considered point estimation of the gaussian scale space random field parameters in the bayesian approach. since the posterior distribution for the parameters of interest dose not have a closed form, we introduce the markov chain monte carlo (mcmc) algorithm to ap...

Journal: :iranian journal of radiology 0
mohammad hossein hossein daghighi department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, iran 984113346911, [email protected]; department of radiology, radiotherapy and nuclear medicine, tabriz university of medical sciences, iran 984113346911, [email protected] masoud poureisa neurosciences research center (nsrc), tabriz university of medical sciences, iran mohammad shimia department of neurosurgery, shohada hospital, tabriz university of medical sciences, iran ramin mazaheri-khamene department of clinical science, veterinary faculty, urmia university of medical sciences, iran shadi daghighi tabriz university of medical sciences, iran

abstract a patient with a 3-month history of headache refractory to pain medication was admitted. the ct scan and mri showed evidence of a posterior fossa mass. this was pathologically confirmed as an extra medullary plasmacytoma (emp). he had a pathologic fracture of the left humerus 7 years ago while the radiologist was unaware at the time of diagnosis. a solitary bone plasmacytoma (sbp) was ...

Journal: :nanomedicine journal 0
sara nikoofal-sahlabadi school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) seyed ahmad mohajeri pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) touka banaee eye research center, faculty of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) ehsan abedini faculty of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) bizhan malaekeh-nikouei nanotechnology research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

a lot of researches have investigated the effects of topical cyclosporine a on the eye surface layers' diseases. by now the main limitation in cyclosporine application is the low permeation of the drug into the posterior segments of the eye. the aim of present study was to formulate high permeable dosage form can be beneficial in the topical treatment of the uveitis. to reach higher corneal dru...

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