Math students may not blink at calculating probabilities, measuring the area beneath curves or evaluating matrices, yet they often find themselves at sea when first confronted with writing proofs. But ...

Natural gums and mucilage have been widely explored as pharmaceutical excipients. The goal of this study was to extract mucilage from the leaves of Aloe barbadensis Miller and to study its ...

Covariance matrix forecasts of financial asset returns are an important component of current practice in financial risk management. A wide variety of models are available for generating such forecasts ...