Background :Work ability assessment and its affecting factors are important in the field of occupational health. One of the factors affecting work ability is sleep disorder, which is very common among workers. Therefore, the present study aimed to assess work ability and its relationship with sleep disorder in workers of a manufacturing plant.   Methods : This cross- sectional study was condu...

Due to high applicability of the fixed bed catalytic naphtha reforming reactors, hydrodynamic features of this kind of reactors with radial flow pattern are improved in this work by utilising computational fluid dynamics technique. Effects of catalytic bed porosity, inlet flow rate and flow regime through the bed on the flow distribution within the system are investigated.It is found that t...

background : although many studies have been performed on occupational and industrial musculoskeletal disorders in iran, small scale industries have been less studied and evaluated. the purpose of this study was to perform an ergonomic assessment of handicraft workers in isfahan, iran, using the assessment of repetitive tasks (art) tool in 2015. methods: this descriptive-analytical and cross-se...

Background: Nurses play an important role in the healthcare system and constitute the highest number of healthcare workers. A positive attitude or a positive state of mind at work may increase the ability to carry out the organization's duties, tasks and plans. The aim of this study was to investigate the relationship between work effectiveness and work engagement of nurses working in the selec...

in order to study the effect of harvesting time on yield of rapeseed cultivars, this research work was carried out at paddy fields of rice research institute of iran in rasht andamol during 2005-2006 and 2006-2007 cropping seasons. the experiment was conducted in a split plot based on randomized complete block design with three replications. four rapeseed cultivars including hyola 308, hyola 40...

Work ow management requires language support for work ow speciication and task speciication. Many approaches and systems for work ow managementtherefore ooer at least one new language for work ow speciication; task speciication is usually done in a traditional language. This is motivated in particular by the fact that many components already exist and the task of the work ow tool is the speciic...