نتایج جستجو برای: mean residual life function
تعداد نتایج: 2411205 فیلتر نتایج به سال:
With survival data there is often interest not only in the survival time distribution but also in the residual survival time distribution. In fact, regression models to explain residual survival time might be desired. Building upon recent work of Kottas and Gelfand (2001) we formulate a semiparametric median residual life regression model induced by a semiparametric accelerated failure time reg...
In this paper, we study the properties of power weighted means, arithmetic, geometry and harmonic for two copulas.
purpose: developmental dysplasia of the hip (ddh) increases the risk of secondary degenerative changes and subsequent total hip arthroplasty. the postoperative quality of life in patients with ddh who have been born and grown with this disability and adapted to it during the life, is one of the most challenging issues. this study aimed to compare the quality of life of patients with ddh before ...
BACKGROUND Today, antireflux surgery has an established position in the management of gastroesophageal reflux disease. Some case series have shown good short-term results, but there is still little information regarding long-term results. Studies have recently focused on evaluating residual symptomatology and its impact on quality of life. OBJECTIVES To determine the postoperative quality of ...
Let X be a random variable from a normal distribution with unknown mean θ and known variance σ2. In many practical situations, θ is known in advance to lie in an interval, say [−m,m], for some m > 0. As the usual estimator of θ, i.e., X under the LINEX loss function is inadmissible, finding some competitors for X becomes worthwhile. The only study in the literature considered the problem of min...
convolution each of the BOLD responses with a single universal transfer function, modeled BOLD signals were generated which when differenced with the measured BOLD signals showed residual signals which were smaller than the measurement uncertainty. The root mean square (RMS) of the residual signal (left number) was compared with the averaged standard deviation (SD) of the measured data (right n...
The Lomax distribution (Pareto Type-II) is widely applicable in reliability and life testing problems in engineering as well as in survival analysis as an alternative distribution. In this paper, Weighted Lomax distribution is proposed and studied. The density function and its behavior, moments, hazard and survival functions, mean residual life and reversed failure rate, extreme values distribu...
objective: to evaluate the symptoms of menopausal women and the link between sexual function, menopausal symptoms and demographic variables. materials and methods: this is a cross-sectional study in which 202 postmenopausal women admitted to the health care centers were selected. the female sexual function index (fsfi) questionnaire and menopause-specific quality of life (menqol) were the main ...
let x be a random variable from a normal distribution with unknown mean θ and known variance σ2. in many practical situations, θ is known in advance to lie in an interval, say [−m,m], for some m > 0. as the usual estimator of θ, i.e., x under the linex loss function is inadmissible, finding some competitors for x becomes worthwhile. the only study in the literature considered the problem of min...
BACKGROUND Standard assessment instruments cannot differentiate patients with minimal residual hand function after stroke. As a result, changes in motor recovery are difficult to document using currently-available tests. In a controlled study with chronic stroke patients without residual finger extension, a new hand function test has been developed. This instrument, called Broetz Hand Test (BzH...
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