environment conservation is the common concern at all levels from local to global. most of the recent environment problems and ill effects stem from ecological misappropriation and neglect to recognize the limits of ecosystem, its. rapid population growth, low income, lowest health facilities, poor sanitation, lack of education. personal and community hygiene poverty has enhanced the incidence ...

the aim of this study is to review the rentier state theory, with special regard to iran. iran’s rentier state is highly dependent on oil revenues, but much less on tax revenues. even this negligible reliance on tax revenues, itself seems to be indebted to oil revenues. thus the main research hypothesis is that iran’s oil revenue is one of the main determinants of tax revenues. to empirically t...

Climate change is likely to affect the generation of energy from California’s high-elevation hydropower systems. To investigate these impacts, this study formulates a linear programming model of an 11-reservoir hydroelectric system operated by the Sacramento Municipal Utility District in the Upper American River basin. Four sets of hydrologic scenarios are developed using the Variable Infiltrat...

Solid waste is one of the unavoidable products of every society that necessitates the establishment of municipal solid waste management system. Because of variability in quantity and composition of municipal solid wastes, several management scenarios are considered. Assessing the environmental impacts of the life cycle of these scenarios will have a significant role in reducing and resolving ur...

Introduction: Countries around the world are looking for an appropriate, stable, and affordable replacement for the natural energies. Therefore, the waste is considered as an available resource to produce energy, which by controlling, its effects on the environment could be minimized. Materials and Methods: To conduct this review article, the scientific data related to the topic were gathered ...

the main purpose of the study is to examine the causal relationship between government revenues and expenditures of the jordan government over the period from 1990 to 2011 using granger causality and vecm tests methodology. which provides channels of causation between government revenues (gr) and government expenditures (ge).the empirical results show that bidirectional causality running betwee...

This study aims to examine the structural constraints of municipal revenues and offer some solutions increase these revenues, focusing on revenue structure municipalities in Turkey for 2010–2018. In this context, is analyzed within framework financial autonomy. The most serious problems are insufficient finance their expenditures dependence central government. Municipalities do not have authori...