1-carboxymethyl-3-methylimidazolium chloride {[cmmim]cl} is utilized as a highly efficient and reusable catalyst for the synthesis of bis(indolyl)methanes by the condensation reaction of indole with arylaldehydes under solvent-free conditions at room temperature. in summary, the presented method have several advantages including simplicity, low cost, generality, efficiency, clean reaction profi...

Despite its socio-economic vulnerability, Madagascar has committed itself to carrying out development actions that are reflected in National Policy. The aim of this study is produce recommendations for decision-makers on local realities need be taken into account regarding the implementation Sustainable Development Goals. To proceed, four Goals or SDGs directly concern cities have been chosen s...

Skins are considered a by-product of the meat industry, where 59% companies in Colombia microenterprises and do not have processes technology necessary to treat animal take advantage leather (López Hueza, 2018). Also, according Clean Production Guide for Tanneries Sector Bogotá (2015), this activity is characterized by excessive water consumption; disproportionate use chemicals per/ ton process...

Despite the People’s Republic of China government being most aggressive in pursuing carbon neutrality goal, it remains world’s largest emitter and polluting country. This study used 31 provinces’ panel data from 2010 to 2019 compare fiscal decentralization’s impact on regional emissions. It applied SBM-DEA undesirable models calculate Malmquist index environmental governance performance. then s...

The green economy is a modern economic model that aims to achieve sustainable development by transforming the current traditional into system consumes natural resources sustainably and works reduce pollution climate change. A considered solution for achieving worldwide, where it can lead economic, social, environmental sustainability. only be achieved redirecting investments from polluting indu...

A ring [Formula: see text] is said to be clean if each element of can written as the sum a unit and an idempotent. weakly either or difference idempotent, feebly every text], where are orthogonal idempotents. Clearly, rings both them clean. In recent paper (J. Algebra Appl. 17 (2018) 1850111 (5 pp.)), McGoven characterized when group clean, distinct primes. this paper, we consider more general ...