Risk factors for work-associated strain or sprain back injuries were investigated in a cohort of 31,076 material handlers from 260 retail merchandise stores in the United States. The workers studied were those with significant material-handling responsibilities--daily lifting and movement of merchandise. Workers in jobs with the greatest physical work requirements had an injury rate of 3.64 per...

Since 1993, the rate of output growth in Ireland has been three times that of the EU. The annual rate of employment growth has been even more spectacular at four percentage points higher than that of the EU. Over 25 per cent more people are working than in 1993, whilst in most European economies employment has been flat (see Figure 1). The growth rate of output per worker has been far less spec...

In this paper, we examine the relationship between economic growth, as measured by both real GDP and the output gap, and employment in the ten largest states from 1990 to 2003. Models are developed to estimate the employment intensity of economic growth as well as the timing of the relationship between employment and economic growth. Employment intensity is estimated to range from 0.31 to 0.61 ...

In manufacturing systems, defective items are produced for machine drift and error. Usually, an imperfect production rate is random, if the not reworked, these considered trash harm environment. The proposed model aims to reduce waste by reworking products maximizing profit. For profit maximization or overall cost minimization of system, setup has significant. A discrete investment each phase i...

objective: psychiatric distress and work related stress may have a profound effect on an individual's well-being .the aim of this study was to estimate the prevalence rate of mental health problems and their distribution by age, educational level, marital status and years of employment in a chocolate manufacturing company in iran .the general health questionnaire (a widely used screening instru...