Currently, materials flow optimization and creating of optimal job scheduling are one of the main tasks of all company for increase of competitiveness. A schedule problem in a manufacturing company is characterized as jobs sequence and allocation on machines during a time period. The first part of this article is focused on dynamic scheduling and its methods. The second part describes a case st...

AIM Workers who are satisfied with their job are the cornerstones of healthy and productive companies. This study investigated factors associated with job satisfaction in the general working population. METHODS From the 2010 round of the Danish Work Environment Cohort Study, currently employed wage earners ( N=10,427) replied to questions about work, lifestyle and health. Multinomial logistic...

OBJECTIVES Because work-related injuries are common and yet the mechanisms through which various types of injuries relate to age, length of service and job remain unknown, this study assessed the role of age, length of service and job in work-related injury. METHODS Prospective study of all 164,814 permanently employed male workers at the French national railway company during 1998-2000, base...

PURPOSE The purpose of the study was to categorize nursing students' subjectivity in their attitude toward their jobs, and thereby understand the differences among these attitude types. METHODS The study used a Q-method to measure nursing students' attitude toward jobs identity types. In-depth and objective interviews and literature review formed Q sample. The P sample consisted of 25 nursing...

This study aims at identifying the relationship between managers’ leadership style and employees’ job satisfaction. To achieve this aim and to examine the research hypotheses, two types of questionnaires, including Likert scale for leadership style and Job descriptive index for job satisfaction, were distributed among 218 employees in 3 different departments of Finance and Administration Deputy...

OBJECTIVES To clarify the distribution of chronic kidney disease (CKD) and the factors contributing to its development and progression in middle-aged Japanese workers/employees. METHODS This was a retrospective study involving 3,964 men and 2,698 women aged 35-64 years in 2009 who had been followed-up until 2003. Data on proteinuria determined with a dipstick and glomerular filtration rate es...

The following multiprocessor scheduling problem was motivated by scheduling maintenance periods for aircraft. Each maintenance period is a job, and the maintenance facilities are machines. In this context, there are very few different types of maintenances performed, so it is natural to consider the problem with only a small, fixed number C of different types of jobs. Each job type has a proces...