Results 41 to 50 of about 17,500,545 (334)

"Suboptimal" kidney donors: The experience with tacrolimus-based immunosuppression [PDF]

open access: yes, 1996
Female, pediatric, and older donors have been associated with inferior graft survival after renal transplantation. We analyzed these three subgroups in 397 patients receiving tacrolimus-based immunosuppression. There were no differences in recipient age,
Alexander   +23 more
core   +1 more source

Robust Estimations of Survival Function for Weibull Distribution

open access: yesStatistica, 2021
The aim of this study is to estimate the robust survival function for the Weibull distribution. Since the survival function of Weibull distribution is based on the parameters, we consider two robust and explicit Weibull parameter estimators proposed by ...
Derya Karagöz, Nihal Ata Tutkun
doaj   +1 more source

Distortion risk measures for sums of dependent losses [PDF]

open access: yes, 2010
We discuss two distinct approaches, for distorting risk measures of sums of dependent random variables, which preserve the property of coherence. The first, based on distorted expectations, operates on the survival function of the sum.
Brahimi, Brahim   +2 more
core   +3 more sources

Impact of comprehensive geriatric assessment on survival, function, and nutritional status in elderly patients with head and neck cancer: protocol for a multicentre randomised controlled trial (EGeSOR)

open access: yesBMC Cancer, 2014
Survival is poorer in elderly patients with head and neck squamous cell carcinomas [HNSCCs] than in younger patients. Possible explanations include a contribution of co-morbidities to mortality, frequent refusal of standard therapy, and the use of ...
L. Brugel   +10 more
semanticscholar   +1 more source

Odd Generalized Rayleigh- Exponential distribution Statistical Properties with Real Data Application [PDF]

open access: yesKirkuk Journal of Science
In this paper we offer a new distribution due to the most common problem for researchers is to determine a statistical model for analyzing lifetime data.
ِAli Monef
doaj   +1 more source

The time to degree or dropout amongst full-time master’s students at University of KwaZulu-Natal

open access: yesSouth African Journal of Science, 2015
Universities around the world are grappling with strategies to increase throughput and minimise dropout rates of postgraduate students. This study focuses on students at the University of KwaZulu-Natal and we attempt to estimate the time that it takes ...
Temesgen Zewotir   +2 more
doaj   +1 more source

Estimation of Survival Function [PDF]

open access: yesActa Oeconomica Pragensia, 2007
Aplikace analýzy dat o "přežiti" (survival data) zaznamenala velký rozvoj a metody analýzy přežiti se rozsiřily z oblasti biomediciny a techniky do řady dalsich oborů. Problemu odhadu pravděpodobnostniho rozděleni doby do výskytu urciteho jevu v připadě, kdy jsou k dispozici cenzorovana data, je věnovana znacna pozornost.
openaire   +1 more source

Quantile Regression with a New Exponentiated Odd Log-Logistic Weibull Distribution

open access: yesMathematics, 2023
We define a new quantile regression model based on a reparameterized exponentiated odd log-logistic Weibull distribution, and obtain some of its structural properties.
Gabriela M. Rodrigues   +3 more
doaj   +1 more source

Modeling and Validation of the Hospital’s Ambulatory and Inpatients Operations Using a Non-Homogenous Discrete Time Markovian Chains

open access: yesIEEE Access, 2021
Overcrowded hospitals in its different process’s levels is a very common issue all over the globe. Research through different works have studied this problem from different angles.
Kaouter Karboub   +5 more
doaj   +1 more source

Adiposity and weight change in mid-life in relation to healthy survival after age 70 in women: prospective cohort study [PDF]

open access: yes, 2009
Objective: To examine the hypothesis that mid-life adiposity is associated with a reduced probability of maintaining an optimal health status among those who survive to older ages. Design: Prospective cohort study. Setting: The Nurses’ Health Study,
Sun, Qi, PhD   +5 more
core   +1 more source

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