It is in workers' interest to leave their jobs if better work can be found, but imperfect information on outside opportunities impedes their job search. We describe two theories on workers' search using the organizational size as a proxy for work characteristics, and derive hypotheses on how the organizational size distribution in a labor market affects job separations. We test the hypotheses w...

context: nursing is a stressful job that could create physical and psychological disorders. many studies presented information on stress, effects of coping strategies, and job satisfaction of nurses within health setting. we aimed to identify and describe nursing stresses, coping strategies and job satisfaction of iranian nurses who are working or worked in different wards. evidence acquisition...

We study problems of scheduling n unit-time jobs on m identical parallel machines, in which a common due window has to be assigned to all jobs. If a job is completed within the due window, then no scheduling cost incurs. Otherwise, a job-dependent earliness or tardiness cost incurs. The job completion times, the due window location and the size are integer valued decision variables. The objecti...

Recent computer systems research has proposed using redundant requests to reduce latency. The idea is to replicate a request so that it joins the queue at multiple servers. The request is considered complete as soon as any one copy of the request completes. Redundancy is beneficial because it allows us to overcome server-side variability – the fact that the server we choose might be temporarily...

We consider the problem of scheduling family jobs with release dates on a bounded batching machine. Our objective is to minimize the maximum completion time of the jobs (i.e., the makespan). We deal with two variants of the problem. One is the identical job size model, in which the machine can process up to b jobs simultaneously as a batch. The other is the non-identical job size model, in whic...

Correlations in traffic patterns are an important facet of the workloads faced by real systems, andone that has far-reaching consequences on the performance and optimization of the systems involved.While there has been considerable amount of work on understanding the effect of correlations be-tween successive interarrival times, there is very little analytical work in understanding ...