Abstract: A hood covers an internal combustion engine on the rear of a grass mowing machine. The hood has a top surface with a plurality of air intake openings recessed below the top surface, and an integral air duct. The integral air duct extends over the engine between the air intake openings and an air inlet side of the radiator and/or oil cooler adjacent the rear of the grass mowing machine. The air intake openings closest to the air inlet side of the radiator and/or oil cooler are dimensioned to limit the air intake velocity and prevent buildup of debris on screens or grilles over the openings.

Abstract: A mounting assembly to mount the base of a hydraulic motor on a mower deck includes a cast iron mounting plate having stiffening structures around the perimeter and spanning the perimeter, and rubber isolators between the mounting plate and the mower deck.

Abstract: An apparatus and a method for predicting cognitive performance of an individual based on factors including preferably sleep history and the time of day. The method facilitates the creation of predicted cognitive preformance curves that allow an individual to set his/her sleep times to produce higher levels of cognitive performance. The method also facilitates the reconstruction of past cognitive performance levels based on sleep history.

Abstract: Apparatus for collection of a skin sample from a patient that includes an elongated generally tubular barrel having first and second axial extremities and having an interior chamber in communication with the first axial extremity. The first axial extremity of the generally tubular barrel has a sharp edge. The apparatus further includes apparatus for connecting the interior chamber to an associated vacuum source and apparatus for directing a vacuum from the associated vacuum source to the sharp edge. Some forms of the invention include a stop member disposed within the barrel for limiting the thickness of the skin sample. The stop member may be a perforate body. The apparatus may further include apparatus for securing the stop member in a plurality of discrete axial positions whereby the thickness of the skin sample may be defined before the collection process starts.