An oil pump assembly for use with an internal combustion engine having an engine block, a crankshaft that is rotatable with respect to the engine block on a crankshaft axis, and a sump that is connected to the engine block for receiving and storing oil therein. A control switch interrupts electrical connection between the electric power source and the motor unit when actuated by the cork in a cork passage defined by a sleeve body in a grip member while the cork extends out of the cork passage as a result of rotation of the auger in the positive direction. Filtering of the received signal is performed to remove both broadband and narrowband noise. The system interprets a voice markup language document to accept TDD input as a form of user input. In some instances, the human breast tissue model includes at least one simulated pathological structure that simulates such pathologies as a cyst, a medullary carcinoma, a ductal carcinoma, an infiltrating scirrhus carcinoma, a lobular carcinoma, and a fibroadenoma.