A method for operating an electrical circuit is described. In standby mode, the cell’s wordline is deselected and a source-biasing potential is provided to the cell. The fire detector has an energy storage device, in particular a battery, for the autarkic supply of electrical power to the fire detector as well as a voltage measuring unit for measuring a battery voltage present at the energy storage device. , a blood sample, is assayed to obtain a gene expression result, where the gene expression result includes a result for a biomarker of graft tolerance. The adjustment hole is configured to engage a second positioning element that extends into the second bone segment through the adjustment hole and the second screw hole is configured to affix the second side of the reduction plate to the second bone segment.