Stimuli that are clearly positive or negative (hence valence-laden stimuli) have the potential to interrupt unrelated task processing. A typical example is the emotional Stroop effect (ESE) in which responding to a certain task feature (e.g., color) is delayed by the presentation of task-irrelevant valent stimuli (e.g., negative pictures) compared to valence-neutral stimuli. Here we scrutinize ...

This paper deals with the steady state behaviour of an Mx/G/1 queuing system with two different vacation periods under multiple vacation policy, where length of the first vacation is different from the rest of the vacations. We are concerned with the distribution of the queue size at busy period initiation epoch and distribution of the unfinished work. Further, we present a simple transform fre...

We derive in this paper the transient queue length and the busy period distributions of a single server queue with phase-type (PH) service times and a batch Markovian arrival process (BMAP). These distributions are obtained by the uniformization technique which gives simple recurrence relations. The main advantage of this technique is that it leads to stable algorithms for which the precision o...

Continued Fractions method has been used to obtain a transient solution for the system size probabilities in an M/M/1 queue with instantaneous Bernoulli feedback subject to Catastrophes, Server Failures and Repairs. The steady state analysis of system size probabilities and some performance measures of the system are deduced. Further, Busy Period, Reliability and Availability of the model are a...

Abstract. In the course of attempting to estimate the arrival rate of a single server queue using an active probing experiment, the authors found it necessary to derive the distribution of the number of arrivals between two probes under the conditions that the busy period of the queue lasts this long. In this paper we derive this distribution. The key building blocks in the derivation of the di...

The main theme of this paper is to find the Distributed Data Transaction of an Apache web server using bulk service rule. We obtain the parameter of service rate, Arrival rate, Expected waiting time and Expected Busy period. The inter arrival and inter service of HTTP request is assumed to Poisson Distribution Process (PDP) and these events are considered in the server for process sharing. The ...

This presentation is a tutorial given as a survey of the basic problems arising in real-time schedulability analysis on uniprocessor systems. It mainly focuses on on-line scheduling policies (fixed priority policies FPP, and dynamic priority scheduling) on a preemptive scheduling scheme, and insists on the basic concepts of busy period and processor demand. This tutorial is an extract of a lect...

In this paper we study the impact of channel capture following a busy period on collision probabilities in a saturated IEEE 802.11 network. A new analytical model that takes into account the previous channel status is proposed to obtain collision probabilities. Using simulation, we show that the well-known fixed point analysis, which is a special case of the new model, becomes more accurate as ...

Purpose The primary aim of the study was to determine the effects of massage therapy, delivered to post-surgery cardiothoracic patients, on pain, anxiety, relaxation and muscular tension at two different time points and compare it to an equivalent period of rest time. The secondary aims were to explore the effects of massage on heart rate, respiratory rate and blood pressure, feasibility of tre...