The present invention concerns compositions of matter, for example, but not limited to, modified antibodies, in which one or more biologically active peptides are incorporated into a loop region of a non-terminal domain of an immunoglobulin Fc domain. The hydrogen purification membranes include a metal membrane, which is at least substantially comprised of palladium or a palladium alloy. , for a motor vehicle, having an electric motor, which transmits a steering-assist force via a belt transmission to a ball-screw transmission for displacing vehicle wheels, includes a cam, via which the ball-screw transmission andor electric motor is supported in a steering-gear housing. The current inventive fitting methodology is preferred to the archaic fitting method of using data gathered from the result orientated ball flight data together with a tedious process of having to try numerous different shafts. A eyelet hangers protrude from the track bar because a capture element is located in the cavity and a downward eyelet extender has an eyelet hole into which is clipped a clip hook from the tent sidewall. The pin provides a convenient means for locking the stake system to the vehicle and prevents the stake system from disengaging during operation.