A ball target assembly into which a rolling ball is directed and the associated method of playing a game using the ball target assembly. The first lens element with refractive power has a convex object-side surface in a paraxial region thereof and a concave image-side surface in a paraxial region thereof. The system also includes software for determining block level trade execution information based upon the trade execution information and for determining block level trade order information based upon the trade order information. The distal end of the needle is insertable into the body of the patient, and a portion of the proximal end of the needle remains outside of the body of the patient when the device is worn. A digital input word of the DDFS, a value of the variable capacitance, andor at least a portion of the delay elements, may be programmatically controlled based on a desired frequency for transmission andor desired frequency for reception. When a node determines that such infrastructure is not available, the node will communicate the necessary information to another mobile node located in, for instance, a vehicle.