The problem studied in this paper was inspired from an actual textile company. The problem is more complex than usual scheduling problems in that we compute overtime requirements and make scheduling decisions simultaneously. Since having tardy jobs is not desirable, we allow overtime to minimize the number of tardy jobs. The overall objective is to maximize profits. We present various mathemati...

OBJECTIVES Although waged workers' working conditions have notably diversified in South Korea, there is little research addressing this issue. This study explores the relationship between working conditions and engagement in leisure-time physical activities (LTPA) among waged workers in South Korea. METHODS Data from 19- to 64-year-old waged workers (men=2,562, women=1,627) from the 11th wave...

This paper addresses the issue if and to what extent young firms differ from incumbents regarding the use of non-standard employment, trust-based working time arrangements and overtime hours in the light of the qualitative changes of employment structures that are taking place in industrialized countries, such as rising shares of non-standard employment and borders between work and private life...

We identified three temporal patterns shown in commit activities among Chinese and American companies found that businesses are more likely to follow long work hours than ones. also conducted a survey on the trends of, reasons for, results of overtime work. Our study could provide references for developers choose workplaces make regulations.

For the development of long lasting portable microbial fuel cells (MFCs) new strategies are necessary to overcome critical issues such as hydraulic pump system and the biochemical substrate retrieval overtime to sustain bacteria metabolism. The present work proposes the use of a synthetic solid anolyte (SSA), constituted by agar, carbonaceous and nitrogen sources dissolved into diluted seawater...

Education: 6. Schools of nursing should address decision-making within their curriculum related to the impact that fatigue and the habitual The American Nurses Association (ANA) takes the position that, regardless of the number of hours worked, all registered nurses have an ethical responsibility to carefully consider their level of fatigue when deciding whether to accept any assignment extendi...

Shift work and overtime have been implicated as important work-related risk factors for cardiovascular disease (CVD). Many firefighters who contractually work on a 24-hr work schedule, often do overtime (additional 24-hr shifts) which can result in working multiple, consecutive 24-hr shifts. Very little research has been conducted on firefighters at work that examines the impact of performing c...