Polymerizable monomer compositions, transparent polymer substrates and optical and ophthalmic articles obtained. A wafer base sheet coated with a spreadable mixture is transported along a first conveyor surface to a stacking area. A method for producing a human sebum mimetic comprises mixing refined macadamia oil and refined jojoba oil, interesterifying the macadamia oil and the jojoba oil, adding a phytosterol, adding phytosteryl macadamiate, and adding phytosqualene after interesterification. The integration may be performed during data transitions to eliminate threshold drift during long sequences where no transitions occur. Accordingly, the electronic test unit has at least one electronic component for generating the test signals, and is configured for use on a personal computer mother board and contains at least one memory controller. Using a dummy pattern in a single coordinate system does not allow an effective dummy pattern arrangement.