Provided herein are water-soluble carbohydrate polymers which are monoderivatized at their reducing terminus, such that the carbohydrate polymers can be selectively conjugated at a single location. A message is created using a universal message form. This setting unit has an inner body coupled to the camshaft so as to rotate with it, and an outer body that is mounted to rotate relative to the camshaft via a drive connection which runs from a crankshaft to the camshaft. Also provided are methods of using D-pinitol to promote a healthy nervous system and as a food supplement. A mechanical linkage rotationally connects the crank throw to the connecting rod about a connecting rodcrank throw axis such that the expansion piston reciprocates through an expansion stroke and an exhaust stroke of the four stroke cycle during the same rotation of the crankshaft.