Two significant limitations of using TiO nanoparticles for water treatment applications are reduced photocatalytic activity under visible radiation and difficulty recovering the particles after use. In this study, round-shaped Ag@TiO nanocomposites with a ≈21 nm diameter and a bandgap energy of 2.8 eV were synthesised by a deposition-precipitation method.
View Article and Find Full Text PDFSexual health is a signficant dimension of health among children and youth in Tanzania. Local discourses highlight concerns regarding HIV/AIDS and sexual violence. The aim of this study was to examine the experiences and participation of children and youth in sexual health-related discussions, decisions, and actions in Njombe; a Tanzanian rural community.
View Article and Find Full Text PDFThis research focuses on the application of an artificial neural network (ANN) to predict the removal efficiency of tartrazine from simulated wastewater using a photocatalytic process under solar illumination. A program is developed in Matlab software to optimize the neural network architecture and select the suitable combination of training algorithm, activation function and hidden neurons number. The experimental results of a batch reactor operated under different conditions of pH, TiO concentration, initial organic pollutant concentration and solar radiation intensity are used to train, validate and test the networks.
View Article and Find Full Text PDFThis report describes a case of sporadic porphyria cutanea tarda involving a 38-year-old Moroccan man. Clinical diagnosis was based on characteristic features, i.e.
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