In ordinary rst order logic, a valid inference in a language L is one in which the conclusion is true in every model of the language in which the premises are true. To accommodate inductive/uncertain/probabilistic/nonmonotonic inference, we weaken that demand to the demand that the conclusion be true in a large proportion of the models in which the relevant premises are true. More generally, we...

Background and aims: Many workers face significant hazardous workplace exposures, especially indeveloping countries. The objective of this study was to investigate the prevalence of occupational riskfactors and common occupational diseases in Kerman.Methods: This study was based on data from occupational risk factor and disease monitoring systemsavailable at Kerman Provi...

The shortage of occupational therapists specializing in mental health led to a survey of graduates from nine occupational therapy schools in the New York metropolitan area to determine the factors affecting their specialty choice. The variables examined were derived from a literature review of the specialty choice of psychiatry among medical students. They included personality, academic, clinic...

OBJECTIVE To verify the prevalence and factors associated with vaccination against hepatitis B among Primary Health Care workers in Montes Claros/MG. METHOD A cross-sectional, analytic study was undertaken. Data were collected through a form, which contained sociodemographic, occupational, general health and behavioral variables. Associations were investigated through bivariate analysis and P...

Patients who received occupational therapy services (OT Group) and those who did not (NOT Group) were compared in a retrospective record review to determine the efficacy of occupational therapy in reducing the need for restraint in a state psychiatric hospital. There were 60 subjects with an Axis I diagnosis in each group who met the qualifications of a continuous 90-day minimum inpatient statu...

The association between cancer incidence and the residence near polluting facilities in an industrial area nearby Taranto has been investigated. Age, sex and occupational exposure were controlled as confounding variables in a case-control study (658 cases, 2092 controls). High risks were evidenced close to the steel mill (OR: 3.54), coke plant (OR: 4.80), mineral deposit (OR: 3.33) and shipbuil...

To ensure that researchers and practitioners make valid interpretations from children's self-reports, evidence must demonstrate that the self-report has appropriate psychometric properties. The Child Occupational Self Assessment (COSA) is a self-report of occupational competence and value for everyday activities designed to involve children in identifying goals and assessing outcomes. Five hund...

PURPOSE This study explores how highly correlated time variables (occupational cohort time scales) contribute to confounding and ambiguity of interpretation. METHODS Occupational cohort time scales were identified and organized through simple equations of three time scales (relational triads) and the connections between these triads (time scale web). The behavior of the time scales was examin...

historically, the majority of immigrants to the united states came from european countries. the 1965 immigration reform act (ira) fundamentally changed the configuration of immigrants to the united states. the largest immigrant communities now consist of latin americans, asians, and africans. another important development in immigrant communities in the past few decades has been the growth of a...