A thermal cycle includes: increasing a temperature from an initial temperature to a temperature T1 at an arbitrary rate R1 ; holding the temperature at the temperature T1 for an arbitrary period t1 ; increasing the temperature from the temperature T1 to a temperature T2 at a rate R2 of 1. Also, the method determines one of a first list of reference pictures and a second list of reference pictures for the block. The grip element of the housing is rotatable relative to the shaft-receiving element of the housing about a rotation axis extending perpendicular to the shaft. The introduction of the heterosection is such that the lattice mismatch between silicon and germanium does not result in a highly defective interface.