Compositions based on amino acids are described, for improving the myocardial ventricular function in patients suffering from diabetes, particularly but not exclusively II type diabetes. The side panels maintain the appearance of a conventional pickup truck without storage compartments. Formed on the inclined surfaces is a plurality of parallel raised contact surfaces that provides a directional contact surface used to remove excess paint from the roller and return the excess paint to the basin. Also included is a second IC interfaced to the processor which is configured to count a number of drops of ink printed by the printhead, to update a remaining drop count of the ink cartridge using the counted drops printed and then write an updated remaining drop count to the second IC each time a page has been printed. The first negative-electrode mixture layer and the second negative-electrode mixture layer have different chargedischarge characteristics. The reflector includes a plurality of light-reflective concave portions.