The alternating renewal process is one of the renewal processes in renewal theory. It is widely used in inventory systems and queueing systems. In classical alternating renewal processes, one of the assumptions is that the on times and off times are independent random variables. The notion of a fuzzy set was introduced by Zadeh [1] who defined it as a generalized characteristic function. Recent...

We determine the impact of resource renewal on the lifetime of a forager that depletes its environment and starves if it wanders too long without eating. In the framework of a minimal starving random-walk model with resource renewal, there are three universal classes of behavior as a function of the renewal time. For sufficiently rapid renewal, foragers are immortal, while foragers have a finit...

this study aimed to evaluate the effects of auditory-verbal rehabilitation on voice parameters after implantation with cochlear implants 2 and 5 months after rehabilitation and compare them with normal voice children (under 12 years of age). a perceptive and electroacoustic evaluation of voice was carried out through a digital analysis after implantation and rehabilitation. the study was perfor...

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(1) Sn = S0 + n ∑ i=1 Xi When S0 = 0 the renewal process is an ordinary renewal process; when S0 is a nonnegative random variable the renewal process is a delayed renewal process. In either case, the individual terms Sn of this sequence are called renewals, or sometimes occurrences. With each renewal process is associated a renewal counting process N (t ) that tracks the total number of renewal...

Background:Cardiac rehabilitation program (CRP) is a useful method of modifying cardiovascular risk factors, improving life expectancy and quality of life in patients with ischemic heart disease (IHD). The present study was conducted to evaluate the effects of cardiac rehabilitation on the pulmonary artery systolic pressure (PASP) and left ventricular end-diastolic pressure (LV...

This prospective multicenter study identifies the variables significant in the prediction of rehabilitation efficiency, achievement of rehabilitation potential and duration of rehabilitation stay in 258 persons with a first stroke admitted to comprehensive inpatient rehabilitation in Brisbane, Australia, during 1984. All three dependent variables were poorly predicted, with only 17% of the vari...

One of our challenges as physiatrists is to define and describe the uniqueness of our specialty. This challenge is evident when colleagues from other disciplines ask about physiatry, physical medicine and rehabilitation, physical and rehabilitative medicine, or rehabilitation medicine, depending on how we name our specialty. During the past decade I have had many opportunities to contemplate, l...

We wish to announce to the readers of your journal, as well as all those of the other journals relevant to Physical and Rehabilitation Medicine (PRM), the launch of Cochrane PRM, that will have its Official Exploratory Meeting in Brescia (Italy), 19-20 September 2016. The results will drive to complete the business plan under development and submit it for approval to Cochrane by October 2016. C...