background: although experiments on water quality are time consuming and expensive, models are often employed as supplement to simulate water quality. artificial neural network (ann) is an efficient tool in hydrologic studies, yet it cannot predetermine its results in the forms of maps and geo-referenced data. methods: in this study, ann was applied to simulate groundwater quality and geographi...

introduction: various types of software are used in health care organizations to manage information and care processes. the quality of software has been an important concern for both health authorities and designers of health information technology. thus, assessing the effect of software quality on the performance quality of healthcare institutions is essential. method: the most important healt...

background : chronic nature of thalassemia causes changes in different aspects of life in patients, including their quality of life. because of the important role of family in caring for children with thalassemia, this study was done to evaluate the effect of family-centered empowerment model on quality of life of the children aged 6-12 years with thalassemia in kerman thalassemia center. metho...

This study aimed to empirically develop a reliable and valid model specifically for measuring service quality of sport conferences as sport event tourism. To assess the model which has been established based on the survey, data gathered from 136 of attendees in sport conference. Finding of this study showed that participants form their service quality perceptions based on their evaluations of 4...

Governments worldwide have invested resources in publishing open data to promote new business and services transparency accountability of public policies. However, due different factors, such as file formats information granularity, these end up informational silos, without having additional value besides what is contained the itself. The linked technology supports addressing this sort problem,...

The aim of this paper is to study the popular models used for the simulation of major elements of a water quality system. The present study compares results of the CE-QUAL-W2 model with the WASP5 and MIKE11 models to assess the water quality of Pasikhan River. The contaminant loadings of Nitrate and Phosphate are utilized in the CE-QUAL-W2, WASP5 and MIKE11 simulations. This study is the first ...

Super-efficiency model in the presence of negative data is a relatively neglected issue in the DEA field. The existing super-efficiency models have some shortcomings in practice. In this paper, a novel VRS radial super-efficiency DEA model based on Directional Distance Function (DDF) is proposed to provide a complete ranking order of units (including efficient and inefficient ones). The propose...