نتایج جستجو برای: random left truncation and right censor

تعداد نتایج: 16932550  

A. Ganjeali, S. Jomhoori, V. Fakoor,

In some long term studies, a series of dependent and possibly truncated lifetime data may be observed. Suppose that the lifetimes have a common continuous distribution function F. A popular stochastic measure of the distance between the density function f of the lifetimes and its kernel estimate fn is the integrated square error (ISE). In this paper, we derive a central limit theorem for t...

Journal: :journal of occupational health and epidemiology 0
mh beheshti gonabad a firoozi chahak aa alinaghi langari

background: taxi drivers have the most important role in the public transport services. they are exposed to various harmful agents and occupational hazards. noise is a harmful occupational factors and hearing loss is its most important effect. protection of drivers against hearing loss is essential. this study was performed to determine the prevalence of hearing loss among taxi and agency drive...

Journal: :دامپزشکی 0
احمدعلی محمدپور دانشیار دانشکده دامپزشکی دانشگاه فردوسی مشهد ایرج کریمی دانشیار دانشکده دامپزشکی شهرکرد شهلا بندری دانش آموخته دانشکده دامپزشکی شهرکرد

ninety six pairs of adrenal glands from lori – bakhtiari sheep and goat, aged 6 month to 1 year and 1 – 1.5 year from borujen abattoir were collected. after collecting the glands and weighting them, some parameters such as: length, wide and thickness of left and right side by caliper device were measured. in histological studies, after tissue preparation and staining with h&e;, cortical zones a...

ژورنال: Anatomical Sciences Journal 2008
Jajvandian, Roya, Boland Hemat , Maryam,

Purpose: To provide a comprehensive and precise research for population studies on the association of dermatoglyphic patterns on cleft lip/palate deficits. Materials and Methods: This was a case-control observational study that conducted in North Khorasan on 1386. Using a simple random sampling individuals with cleft/lip palate were allocated to case group and their matched health cases were co...

Journal: :Statistical methods in medical research 2000
D Hedeker O Siddiqui F B Hu

Random-effects regression modelling is proposed for analysis of correlated grouped-time survival data. Two analysis approaches are considered. The first treats survival time as an ordinal outcome, which is either right-censored or not. The second approach treats survival time as a set of dichotomous indicators of whether the event occurred for time periods up to the period of the event or censo...

The aim of this paper is to study the behaviour of certain sequence of nonlinear Durrmeyer operators $ND_{n}f$ of the form $$(ND_{n}f)(x)=intlimits_{0}^{1}K_{n}left( x,t,fleft( tright) right) dt,,,0leq xleq 1,,,,,,nin mathbb{N}, $$ acting on bounded functions on an interval $left[ 0,1right] ,$ where $% K_{n}left( x,t,uright) $ satisfies some suitable assumptions. Here we estimate the rate...

  Background   In respect to abnormalities in thalassemia patients and the effects of TNF_α, IL_6, and NT-pro-BNP on echocardiography findings the study aimed to investigate TNF_α, NT-pro-BNP and IL_6 correlations wit...

Journal: :Discrete Mathematics 2002
Helmut Prodinger

For words of length n, generated by independent geometric random variables , we consider the average value and the average position of the rth left–to–right maximum counted from the right, for fixed r and n → ∞. This complements previous research [5] where the analogous questions were considered for the rth left–to–right maximum counted from the left.

2006
Michele Boreale

We show that timely induction of random failures can potentially be used to mount very cost effective attacks against smartcards deploying cryptographic schemes based on (right-to-left) modular exponentiation. We introduce a model where an external perturbation, or glitch, may cause a single modular multiplication to produce a truly random result. Based on this assumption, we present a probabil...

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