background: northern regions of iran have been encountered to dominate malignancies of gastrointestinal (gi) tract. we came to examine the total excess mortality due to the gi cancer in mazandaran province. methods: socio-demographic and clinical data of 484 patients with gi cancer collected during the years 1990-1991were available from babol cancer registry. patients were followed up for 15 ye...

Background & AimsIn the US, inequal liver transplantation (LT) access exists between patients with and without hepatocellular carcinoma (HCC). Survival benefit considers survival LT could equalize access. We calculated bias-corrected for transplanted with(out) HCC, based on longitudinal data in a recent US cohort.Methods ResultsAdult candidates HCC 2010-2019 were included. Waitlist over time wa...

Serotonin is believed as an important factor in brain function. The role of serotonin in cerebral psycho-patho-physiology has already been well established. However, the function of serotonin antagonist in anesthetized subjects under hyperthermia has not been studied properly. Methods: Experiments were performed in three groups of urethane-anesthetized rats, such as: (i) control group, (ii) wh...

Living systems inevitably undergo a progressive deterioration of physiological function with age and an increase of vulnerability to disease and death. To maintain health and survival, living systems should optimize survival strategies with adaptive interactions among molecules, cells, organs, individuals, and environments, which arises plasticity in survival curves of living systems. In genera...

Information about the survival experience for a group of patients is almost exclusively conveyed using plots of the survival function. However, the hazard function provides information about the survival experience that is not readily evident from inspection of the survival function. The hazard function tracks the instantaneous failure rate over time among the surviving patients and can be read...

endometrial stromal sarcomas (ess) are the second most common uterine sarcomas. endometrial stromal sarcomas account for 0.25% of all uterine malignancies. uterine sarcomas most often affect postmenopausal women. the aim of this retrospective study was to review the experience in the treatment and clinical outcome of low grade malignant endometrial stromal sarcoma. seventeen patients with histo...

to evaluate the sensitivity of different crops included some pulses to simulated metribuzin soil residues, an experiment was conducted in completely randomized design with factorial arrangement and four replications in research greenhouse of college of agriculture, ferdowsi university of mashhad. treatments included of 8 crops (chickpea, common bean, lentil, corn, wheat, barley, rape seed and s...

This paper address the problem of Bayesian estimation of the parameters, reliability and hazard function in the context of record statistics values from the two-parameter Lomax distribution. The ML and the Bayes estimates based on records are derived for the two unknown parameters and the survival time parameters, reliability and hazard functions. The Bayes estimates are obtained based on conju...

Let Mi and Mi be the maximum and minimum of the ith sample from k independent sample with different sample sizes, respectively. Suppose that the survival distribution function of the ith sample is F ̄i = F ̄αi, where αi is known and positive constant. It is shown that how various exact non-parametric inferential proce- ′ dures can be developed on the basis of Mi’s and Mi ’s for distribution ...