In a system comprising a subscriber carrier tracking loop and a hub carrier tracking loop, a method and apparatus for resolving phase equivocation. Each stimulator is responsive to a timed activation signal. A first stage of decoding is performed that results in recovering an estimate of correctable errors affecting the data or in declaring an uncorrectable error state. A display unit is provided on a placing surface side of the well plate that is fixed by the adapter, and in response to control by the control unit, displays the cell information, read from the memory card, at display positions corresponding to positions on the bottom face of the well plate, as specified by the coordinate information. An ablation element is connected to the catheter body and is configured to ablate tissue when the anchor element is attached to the tissue. A replication competent herpes simplex virus vector, with defective expression of the 34.