Ground-level ozone is a continuing problem worldwide, but there insufficient research about the influence of pollution on labor productivity in developing countries. Couriers are important for e-commerce and rapidly express delivery industry around world. Yet, due to their typical outdoor working environments, they susceptible health effects pollution. We investigate effect worker service secto...

BACKGROUND According to current guidelines the cost of productivity loss should be considered in pharmacoeconomic analyses. The cost of health-related productivity loss in psoriasis patients is unknown. OBJECTIVE To estimate the cost of productivity loss in psoriasis and its association with health-related quality of life and clinical disease severity. METHODS Cross-sectional study, recruit...

background and objectivesintercropping or simultaneous growing of two or more crops on the same piece of land has the potential of enhanced ecosystem productivity. in a cereal-legume intercropping system, an increase in cereal and a decrease in legume intercrop yield is reported. several indices such as land equivalent ratio (ler), relative crowding coefficient (k), competitive ratio (cr), aggr...

BACKGROUND Health-related productivity loss is an important, yet overlooked, component of the economic burden of disease in asthma patients of a working age. We aimed at evaluating the effect of comorbidities on productivity loss among adult asthma patients. METHODS In a random sample of employed adults with asthma, we measured comorbidities using a validated self-administered comorbidity que...

OBJECTIVE To assess productivity costs incurred by rheumatoid arthritis, comprising paid as well as household productivity costs, from a societal perspective, using different methods. METHODS A questionnaire on productivity, including items of the Health and Labour Questionnaire, was completed by 576 patients with rheumatoid arthritis (mean disease duration seven years). The friction cost (FC...

Little is known about the potential synergistic effect of comorbid psychological distress (PD) and uncontrolled asthma (UA) on productivity loss. We estimated the productivity loss associated with the combination of these two potentially preventable conditions in employed adults with asthma. A population-based random sample of 300 adults with asthma in British Columbia, Canada, was prospectivel...

in arid, semiarid, and mediterranean climates, particularly in west asia and north africa, farmers face limited water resources and must develop irrigation management methods to increase crop production while reducing water use. this study examined methods to reduce irrigation water loss and increase maize water productivity at safiabad agricultural research center in dezful, iran in 2007 and 2...