abstract background: the current practice to measure rv is either by bpg or helium dilution methods which may not be available in all clinics due to their cost. methods: this paper outlines a method for both direct and indirect calculation of rv via pft with acceptable sensitivity (81 %, 60% ), specificity (71 %, 94%) and validity (76%, 78%) for obstructive and restrictive lung disease respecti...

BACKGROUND Respiratory rehabilitation programs (RR) are essential tools in the management of COPD. AIM We present the results of a 7-week outpatient rehabilitation program in terms of dyspnea, exercise tolerance and quality of life. MATERIAL AND METHOD The following parameters were evaluated before and after RR: dyspnea (mMRC scale), pulmonary function (FEVI, RV- residual volume), exercise ...

In addition to the distribution function, the mean residual life (MRL) function is the other important function which can be used to characterize a lifetime in survival analysis and reliability. For inference on the MRL function, some procedures have been proposed in the literature. However, the coverage accuracy of such procedures may be low when the sample size is small. In this article, an e...

2 θ + respectively. Shanker [2] has discussed its mathematical and statistical properties including its shape, moments, skewness, kurtosis, hazard rate function, mean residual life function, stochastic orderings, mean deviations, distribution of order statistics, Bonferroni and Lorenz curves, Renyi entropy measure, stress-strength reliability, amongst others along with the estimation of paramet...

In this paper, a new five-parameter model called alpha power exponentiated Weibull-Pareto distribution is introduced based on developing technique. We derived some properties relating to the proposed distribution, including moments, moment generating function, quantile mean residual life and waiting time, order statistics of model. The parameters are estimated using maximum likelihood method. S...

Kebir (1994) (see also Shaked and Shanthikumar, 1994) has characterized likelihood ratio (LR) ordering, failure rate (FR) ordering, reversed hazard rate ordering and stochastic (ST) ordering with the help of Laplace transform. Using Laplace transform, Nanda (1995) has characterized, by means of necessary and sufficient conditions, the property that two life distributions are ordered in the s-FR...

In this paper, a new lifetime distribution is proposed. Various statistical properties of the proposed such as survival function, hazard rate mean residual life moments, moment generating Bonferroni curve, Lorenz and order statistic are presented. The Bayesian estimator parameter derived. behavior assessed by simulation study. Furthermore, regression model developed based on distribution. Some ...