The present invention relates to a method for retrieving medication packages from a pharmacy order-picking device. The semiconductor device further includes a first field-effect structure including a first insulated gate electrode and a second field-effect structure including a second insulated gate electrode which is electrically connected to the source metallization. The metatarsal protection device may also include a second relatively rigid layer of material overlying the first layer, and the first layer may be shaped to conform to the metatarsal region of the user’s foot, such that the device is configured to protect the metatarsal region against injury. Means are provided for adjusting the nominal position of the clutch engaging means defined by the axial distance between the primary and secondary abutments when the clutch is engaged. Such oil pans may have lighter weight, andor superior corrosion resistance, than conventional metal oil pans. The method further includes performing a spectrum analysis on said signal to determine, for at least one given frequency, an amplitude of variation of said rotational speed at said given frequency, comparing said amplitude with at least one predetermined amplitude threshold for said frequency, and generating an alert signal if said amplitude exceeds at least one predetermined amplitude threshold.