supply chain management is one of modern approach in the field of operation and production management. nowadays success and survival of manufacturing organizations depend on effectiveness and productivity of supply chains. this research tries to investigate contributing factor to enhance supply chain productivity. then by using fuzzy promethe-a multiple attribute decision making (madm) - tous a...

In models with heterogeneous firms trade integration has a positive impact on aggregate productivity through the selection of the best firms as import competition drives the least productive ones out of the market. To quantify the impact of firm selection on productivity, we calibrate and simulate a multi-country multi-sector model with monopolistic competition and variable markups using firm-l...

the scarcity of irrigation water and decrease of water resources are the most important limiting factors in crop production in countries such as iran. thus, studying the optimum use of water and increasing water use efficiency are essential to the agricultural sector. the use of a low pressure hydroflume has been suggested to replace traditional surface irrigation methods. the aim of this resea...

conclusions the findings of this study indicated that the economic burden of tbis was high in fatal accidents in fars province so that it was equivalent to 0.00011% of iran’s gross domestic product (gdp) in 2013. therefore, more attention has to be paid to the rules to prevent the fatal accidents. results deaths resulting from tbis due to traffic accidents in shiraz imposed 6.2 billion rials (5...

Aim: The purpose of this study was to estimate the productivity loss and indirect costs associated with foot ulcers in patients with diabetic foot syndrome (DFS). An additional goal was to estimate the productivity loss and indirect costs in the population of informal caregivers of patients with DFS. Methods: Based on a prospective survey the effects of ulcers on patients’ professional activiti...