economics. The concepts they study can be useful in economic models of policies – to reduce virgin materials extraction, to …

Does extraction increase the likelihood of antistate violence in the early phases of statebuilding processes? While … much research has focused on the impacts of war on statebuilding, the potential "war-making effects" of extraction have … colonial Eastern Africa. Analyses based on a newly collected historical data set confirm the correlation between extraction and …

microalgae are used for biodiesel production. To simplify the process, the extraction of the oils and their reaction are made to … as an extraction solvent and reaction medium. The use of SC-CO2 allows easy separation of the products and leaves the …. Within 6 h, the maximum biodiesel production yield was found to be 19.3% at a temperature of 35 °C and at an M:O molar ratio …

; part one depends on studying the optimum condition of extraction with different co-solvent on different textile fabrics, as … the extraction can be an energy, economic and environmental friendly by waste recycling. Part two deals on studying the …