background: migrant farmworkers are prone to several psychosocial stressors. objective: to investigate the effect of perceived psychosocial factors on pesticide exposure among seasonal migrant hispanic farmworkers in north carolina, usa. methods: a cross-sectional interview survey of 187 seasonal migrant farmworkers of mexican descent, identified from labor camps located in rural counties in no...

This paper introduces a methodology for considering the uncertainties in stability analysis of gravity dams. For this purpose, a conceptual model based on the fuzzy set theory and Genetic Algorithm (GA) optimization is developed to be coupled to a gravity dam analysis model. The uncertainties are represented by the fuzzy numbers and the GA is used to estimate in what...

Probiotics are defined by the Food and Agriculture Organization of the United States as “live microorganisms which, when administered in adequate amounts, confer a health benefit on the host.”1 They are considered nutritional supplements and, as such, are classified as Generally Regarded as Safe (GRAS). Organisms of the probiotic groups are added to all sorts of foods, particularly yogurts, but...

This chapter examines the safety assessment of systems that include people. Specifically, the chapter is concerned with the analysis of safety in complex, information systems that characteristically support dynamic processes involving large numbers of hardware, software and human elements interacting in many different ways. The chapter assumes little or no knowledge of either safety assessment ...

This article presents a brief overview of the research performed at the Human Factors Division of The University of Michigan Transportation Research Institute between 1977 and 1986. The focus of the research has been on human factors (ergonomics) aspects of road safety. Specifically, the research has dealt with the following issues: vehicle headlighting, vehicle rear lighting and signalling, ve...

The present study examined the effect of the geometric parameters of the Rockfill dams on the 2D static analysis of slope stability. In this regard, several numerical models analyzed for eight heights, three slopes of upstream and downstream, three vertical and skewed core thicknesses and four different impounding time stages namely, "End of Construction", "Full Reservoir", "Half Full Reservoir...

introduction: patient safety and its requirements fulfillment are today one of the useful valuation indicators in healthcare organizations. thus, patient safety culture and its promotion are referred to as one of the most important issues raised in the country. the present study aims to examine the effective factors (personal and organizational) in patient safety culture from the point of view ...