Cloud infrastructure o ers democratized access to on-demand computing resources for scaling applications beyond captive local servers. While on-demand, xed-price Virtual Machines (VMs) are popular, the availability of cheaper but less reliable spot VMs from cloud providers presents an opportunity to reduce the cost of hosting cloud applications. Our work addresses the issue of e ective and econ...

BACKGROUND Little is known about the role of low physical activity at work (sedentary work or low physical job demand) in the increasing prevalence of obesity of US workers. METHODS This cross-sectional and secondary data analysis included 1,001 male and 1,018 female workers (age range: 32-69) from the National Survey of Midlife Development in the United States (MIDUS) II study (2004-2006). S...

In the distribution service industry, sales people often experience multiple occupational stressors such as excessive emotional labor, workplace mistreatment, and job insecurity. The present study aimed to explore the associations of these stressors with depressive symptoms among women sales workers at a clothing shopping mall in Korea. A cross sectional study was conducted on 583 women who con...

This paper examines load sharing in distributed systems. It proposes a special load-sharing method, referred to as epoch load sharing. With this policy, load is evenly distributed among distributed processors , with job migration only at the end of predefined intervals. The time interval between successive load sharing is called an epoch. The authors compare the performance of epoch job migrati...

This thesis explores three major areas of research; integration of virutalization into scientific grid infrastructures, evaluation of the virtualization overhead on HPC grid job’s performance, and optimization of job execution times to increase their throughput by reducing job deadline miss rate. Integration of the virtualization into the grid to deploy on-demand virtual machines for jobs in a ...

Little is known about the job strain of staff working in disability institutions. This study investigated the staff's job strain profile and its determinants which included the worker characteristics and the psychosocial working environments in Taiwan. A cross-sectional study survey was carried out among 1243 workers by means of a self-answered questionnaire. The outcome variable (high-strain j...

In the weighted flow-time problem on a single machine, we are given a set of n jobs, where each job has a processing requirement pj , release date rj and weight wj . The goal is to find a preemptive schedule which minimizes the sum of weighted flow-time of jobs, where the flow-time of a job is the difference between its completion time and its released date. We give the first pseudo-polynomial ...

Malaysia's Fire and Rescue Department is the country's primary rescue organisation. However, in recent years, severe issues of stress affecting firefighters' job performance have been exposed media. The study aims to delve deeper into this topic by conceptualizing impact on satisfaction performance. issue conceptualized employing Karasek et al. (1988)'s Job Demand Control Support theory, which ...

A vast literature in labor economics has studied the relationship between local labor demand shifts and the outcomes of the working age population. This literature has ignored the impacts that these shocks have on older individuals, though there are reasons to believe that the effects are not uniform by age. Using data from the Census and the Health and Retirement Study, we measure the effects ...