A fork-join processing network is a queueing in which tasks associated with job can be processed simultaneously. Fork-join networks are prevalent computer systems, healthcare, manufacturing, project management, justice and so on. Unlike the conventional networks, have synchronization constraints that arise because of parallel cause significant delays. We study scheduling multiple types shared r...

Multiple noise measurements were taken on 6 types of fire station equipment and 15 types of emergency response vehicle-related equipment used by firefighters during routine and emergency operations at 10 fire stations. Five of the six types of fire station equipment, when measured at a distance of one meter and ear level, emitted noise equal to or greater than 85 dBA, including lawn maintenance...

Background This study identified multiple socio-professional and team effectiveness variables, based on the Input-Mediator-Output-Input (IMOI) model, and tested their associations with job satisfaction for three categories of mental health professionals (nurses, psychologists/psychotherapists, and social workers). Methods Job satisfaction was assessed with the Job Satisfaction Survey. Indepen...

This study investigated how perceived job stress and health status differ, as well as the relationships to inbound (incoming calls) versus outbound (outgoing calls) calling activities, for call center workers in a bank in Taiwan. The sample bank employed 289 call center workers at the time of the survey, ranging in age from 19 to 54 yr old. Data were obtained on individual factors, health compl...

We investigated the association between occupational exposure to extremely low-frequency magnetic fields (MFs) and the risk of glioma and meningioma. Occupational exposure to MF was assessed for 489 glioma cases, 197 meningioma cases, and 799 controls enrolled in a hospital-based case-control study. Lifetime occupational history questionnaires were administered to all subjects; for 24% of jobs,...

Among nursing staff, the risk of experiencing violence, especially verbal aggression, is particularly relevant. The present study, developed in the theoretical framework of the Job Demands-Resources model (JD-R), has two main aims: (a) to examine the association between verbal aggression and job burnout in both nurses and nurse's aides and (b) to assess whether job content, social resources, an...

This paper proposes an extension of Rosen’s (1986) theory of equalizing differences model by incorporating the role of different types of noncognitive skills in worker’s job preference function to explain the U.S. labor market sorting mechanism. This study also tests the implication of the proposed labor market sorting model by using the current population survey and Occupational Information Ne...