are called upon to undertake a great deal of work which is outside their terms of contract and which often takes them away for appreciable periods of time. The universities recognize this, for the work which is done in this way often helps to bring credit to the university and the contacts which are made bring distinguished visitors and may also attract junior staff and research workers of high...

We study MX/G/1 nonpreemptive and preemptive-resume priority queues with/without vacations under random order of service (ROS) discipline within each class. By considering the conditional waiting times given the states of the system, which an arbitrary message observes upon arrival, we derive the Laplace-Stieltjes transforms of the waiting time distributions and explicitly obtain the first two ...

In this paper, it is studied about finite buffer bulk service queue M/G (a,b) /1 with multiple vacations and some analytical results, relations among queue length distributions, computations of state probabilities at various epochs are included.

The assumption that mood affects investors’ behavior in the field is gaining acceptance due to experimental studies and papers linking stock returns with environmental variables, such as weather and length of day. To identify mood effects this paper utilizes account level stock trading data from all investors in Finland, a country with significant variation in weather and length of day. While s...

OBJECTIVES The goal of this article was to test a series of established predictors of the hazard of moving for persons primarily in their 50s and 60s. We tested demographic covariates, resources, travel experience, and community and person ties using a prospective design. METHODS We employed data from the Health and Retirement Study, 1994 to 2002, based on a representative sample of household...

http://jvm.sagepub.com/content/17/1/17 The online version of this article can be found at: DOI: 10.1177/1356766710391132 2011 17: 17 Journal of Vacation Marketing Vellis Demosthenes Akoumianakis, Nikolas Vidakis, Anargyros Akrivos, Giannis Milolidakis, Dimitrios Kotsalis and George The Case Study of the eKoNES Building 'Flexible' vacation packages using collaborative assembly toolkits and dynam...

The M/C/1 queue with multiple vacations and gated service discipline is considered. We first provide an alternative approach to derive the Laplace-Stieltjes transform of the limiting waiting time distribution, which reveals the stochastic structure of the gated vacation system. Next we discuss the regenerative cycle of the gated vacation system. Based on these considerations, we carry our a tim...

• Planning and organising clinic-based and outreach activities. • Receiving and issuing supplies, including for operating theatre, the outpatient department, and refractive error services. • Making regular inventory reports and reordering when necessary to ensure that supplies are in stock. • Keeping track of accounting for the hospital or overall eye care programme and producing reports, inclu...