objective: this study aimed to develop and validate a questionnaire to measure waiting anxiety . methods: this was a cross-sectional study. extensive review of literature and expert opinions were used to develop and validate the waiting anxiety questionnaire. a sample of 321 participants was recruited through random cluster sampling (n= 190 iranian men and n= 131 women). the participants filled...

For a binary stationary time series define σn to be the number of consecutive ones up to the first zero encountered after time n, and consider the problem of estimating the conditional distribution and conditional expectation of σn after one has observed the first n outputs. We present a sequence of stopping times and universal estimators for these quantities which are pointwise consistent for ...

This paper presents a discrete-time single-server finite buffer N threshold policy queue with renewal input and discreteMarkovian service process. The server terminates service whenever the system becomes empty, and recommencesservice as soon as the number of waiting customers in the queue is N. We obtain the system-length distributionsat pre-arrival and arbitrary epochs using the supplementary...

In this paper the concept of later waiting time distributions for patterns in multi-state trials is generalized to cover a collection of compound patterns that must all be counted pattern-specific numbers of times, and a practical method is given to compute the generalized distribution. The solution given applies to overlapping counting and two types of non-overlapping counting, and the underly...

UNLABELLED Surgical waiting time remains an important issue regarding access to health care provision. It is considered to be excessive in most OEDC countries (over twelve weeks or ninety days). The development of day surgery has been one of the strategies that proved effective in reducing surgical waiting time. This study aims to establish a correlation between surgical waiting time and the pe...

Emerging diseases must make a transition from stuttering chains of transmission to sustained chains of transmission, but this critical transition need not coincide with the system becoming supercritical. That is, the introduction of infection to a supercritical system results in a significant fraction of the population becoming infected only with a certain probability. Understanding the waiting...

Quantitative recurrence indicators are defined by measuring the first entrance time of the orbit of a point x in a decreasing sequence of neighborhoods of another point y. It is proved that these recurrence indicators are a.e. greater or equal to the local dimension at y, then these recurrence indicators can be used to have a numerical upper bound on the local dimension of an invariant measure.

We show that seismic waiting time distributions in California and Iceland have many features in common as, for example, a power-law decay with exponent α ≈ 1.1 for intermediate and with exponent γ ≈ 0.6 for short waiting times. While the transition point between these two regimes scales proportionally with the size of the considered area, the full distribution is not universal and depends in a ...

In high frequency financial data not only returns but also waiting times between trades are random variables. In this work, we analyze the spectra of the waiting-time processes for tick-by-tick trades. The numerical problem, strictly related with the real inversion of Laplace transforms, is analyzed by using Tikhonov’s regularization method. We also analyze these spectra by a rough method using...