A reinforcing bar for body andor chassis parts of a motor vehicle includes a one-piece element extending from one end of the bar to the other and having a median portion with closed tubular cross-section and at least one end portion comprising an open-section distal portion and a proximal portion which connects the said distal portion to the median portion. These methods and devices involve the use of osteogenic proteins, and are useful in repairing defects in the larynx, trachea, interarticular menisci, intervertebral discs, ear, nose, ribs and other fibrocartilaginous tissues in a mammal. Each vertical active pattern extends through each of the cell gates stacked under the first string selection gates. For instance, the device may send an uplink telemetry signal to an external device to request that recharge power be decreased. Rectifier circuits rectify an incoming signal during discovery mode, and apply the rectified signal to the gate of the relay to improve conductivity of the relay.