To increase the limited commercial utility and lessen the negative environmental effects of the massive growth of brown macroalgae, this work illustrates the feasibility of valorizing the invasively proliferated into different value-added products. The proximate analysis recommends its applicability as a solid biofuel with a sufficient calorific value (14.82 ± 0.
View Article and Find Full Text PDFIn order to combat environmental pollution and the depletion of non-renewable fuels, feasible, eco-friendly, and sustainable biodiesel production from non-edible oil crops must be augmented. This study is the first to intensify biodiesel production from castor oil using a self-manufactured cylindrical stator-rotor hydrodynamic cavitation reactor. In order to model and optimize the biodiesel yield, a response surface methodology based on a 1/2 fraction-three-level face center composite design of three levels and five experimental factors was used.
View Article and Find Full Text PDFThe present study deals essentially with the establishment of the environmental natural radiation levels in the surveyed area. These will provide base-line information that can be used as a reference to detect and determine the amount and extent of any possible future variation or contamination in the natural radioactivity levels that might occur in the study area due to any potential incidents involving release of nuclear radiation or fallout of nuclear fission products that could affect both terrestrial and atmospheric radioactivity. A map of radiogenic heat production (RHP) was built from the airborne spectral gamma-ray data of North Jabal Maghrabiyah area, central Eastern Desert, Egypt.
View Article and Find Full Text PDFIntroduction: Kidney transplant recipients (KTRs) have increased risk of cardiovascular disease (CVD) mortality. We investigated vascular biomarkers, angiopoietin-1, and angiopoietin-2 (angpt-1, -2), in CVD development in KTRs.
Methods: This ancillary study from the FAVORIT evaluates the associations of baseline plasma angpt-1, -2 levels in CVD development (primary outcome) and graft failure (GF) and death (secondary outcomes) in 2000 deceased donor KTRs.