background: water filtration units have been faced problems in water turbidity removal related to their media, which is determined by qualitative indices. moreover, current qualitative indices such as turbidity and escaping particle number could not precisely determine the efficiency of the media in water filtration, so defining new indices is essential. in this study, the efficiency of anthrac...

The level of development in health is an important criterion for countries. In a study aimed at measuring the performance system Azerbaijan on provincial basis, change efficiency 56 cities between 2015-2019 was analyzed with Malmquist Total Factor Productivity Index (MPI). As input variable, number hospital beds, workers and physicians were used provinces. values variables are figures per 10,00...