نتایج جستجو برای: survival function
تعداد نتایج: 1505729 فیلتر نتایج به سال:
Intracellular reactive oxygen species (ROS) play an important role in cancer stem cell (CSC) function. Hesperetin (Hst) is a flavonoid that has been shown to affect cellular ROS level. The goal of this study was to investigate the effect of Hst on the level of ROS in gastric CSCs (GCSCs). MTT assay was used to evaluate cell survival. Cellular ROS level was measured using 2′,7′-dichlorofluoresci...
Background & Aim: Delayed graft function(DGF) generally refers to oliguria or the requirement for dialysis in the first week post-transplantation. It is the earliest and most frequent post- transplantation complication that can occur. DGF is an extremely important post- transplantation complication because its occurrence has short-term or long-term consequences for allograft survival. Howev...
Objectives The study aimed at performing a comparative analysis of the aging population in European and Asian countries during 1950 and 2015. Methods & Materials This study has been conducted through a secondary analysis, and the data for 90 European and Asian countries were derived from the UN Population division. The used statistical method was history of survival analysis. The statistical p...
By existing censor and skewness in survival data, some models such as weibull are used to analyzing survival data. In addition, parametric and semiparametric models can be obtained from baseline hazard function of Cox model to fit to survival data. However these models are popular because of their simple usage but do not consider unknown risk factors, that's why cannot introduce the be...
data utilized in this study were 6800 records of lambs’ life longevity, and survival rate from 263 sires and 1839 dams collected from 1989 through 2009, from the lori-bakhtiari flock at shooli station in shahrekord. the data were analyzed, using linear and hazard ratio models along with weibul function. these models included such non genetic factors as year and month of birth, sex of lamb, type...
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