A method of positioning a femoral cutting guide on a distal end of a femur establishes at least a first reference plane to perform a distal femoral planar cut. The semiconductor multilayer substrate comprises a semiconductor layer containing an inorganic particle made of substance other than metal nitrides. The turbo-machines of the present invention may be either axial or radial flow, compressors or gas turbines, and isothermal, adiabatic or combinations thereof in operation, there may or may not be tributary flow to or from one or more of the stages and the turbo-machines may be utilized in the generation of electrical power. Queries submitted by users for the status of queues or queued software tasks managed by the software task manager are satisfied by retrieving the status data that are stored in the file. The decoder generates pointers both to the explicitly-defined register and to the implicitly-derived register. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.