The differences in the wealth of nations have been in existence historically. The extent of inequalities has been very large and even today they do exist and hence the phenomenon is disturbing. It is an undisputed fact that population of a country does have some effect on the economic growth of a country but the extent to which the population size and composition affects the economy has been a ...

Introduction: Analyzing the health risk associated with the microbial contamination of seawater is necessary to ensure that there is not any threat to human or environment. The aim of this study was to evaluate the microbiological quality of Caspian sea water using indicator bacteria. Some Physicochemical parameters were studied to assed their association with the contamination level of Caspian...

background: social health is important to be assessed as a dimension of health. in this study we tried to determine areas and sub-areas of children social health indicators.   methods: in a structured way, we reviewed the main social health databases and documents since 1995, both iranian and international were reviewed to develop conceptual framework and to extract indicators.   results: accor...

The study proposes a new way of measuring productivity and efficiency, with and without considering environmental effects from a production activity, by modifying the conventional Luenberger productivity indicator. The Luenberger approach has so far been applied in productivity and efficiency measurement in time-varying contexts. It has been mainly used in comparisons of international productiv...

Introduction: Dental maturation is a useful indicator of growth. Moreover, skeletal maturation is assessed by the cervical vertebrae maturation (CVM) stages, using lateral cephalometric radiographs. This study aimed to investigate the association between Demirjian’s method and CVM stages and also to analyze the diagnostic performance of the dental maturation stages for identification of ...

Rohrer's ponderal index in newborns (birth weight * 100/height3) has been used as an indicator of fetal growth status, especially to assess asymmetrical intrauterine growth retardation. Low ponderal index or disproportionate intrauterine growth retardation has higher neonatal morbidity and there are some specific guidelines in intrauterine growth retarded infants to control some of their pr...

The performance of every plant in an environment is an indicator of how the plant can withstand the various environmental conditions. This study investigated the toxicity of crude oil on the growth performance, chlorophyll contents, enzymatic activities and oxidative stress biomarkers of eight accessions of Zea mays. The growth enzyme (amylase and invertase) activities, as well as oxidative s...

background: photoreactivation of microorganisms following uv disinfection is a disadvantage of using uv technology for wastewater treatment, since in some cases it may even reach several logarithms. the aim of this study was to evaluate the possibility of the photoreactivation of indicator bacteria (coliform and streptococci) in the irradiated effluent. methods: this study was performed using t...