A passive entry and immobilizer key for vehicles comprises an integrated front-end circuit with three battery-supplied receiver channels, each connected to an associated external antenna circuit with an inductor-capacitor combination having a resonant frequency in the very low frequency range. The article includes a backsheet layer, a liquid-permeable topsheet layer, and an absorbent body sandwiched between the backsheet layer and topsheet layer. The car seat cover contains a feature of a first personalized image displayed on the front and a second personalized image on the rear side of the seat cover. For each n, the function Fn is a unique surround function applied to each position and N is the total number of unique surround functions. Fixed bed gas phase and stirred tank liquid phase processes are provided for converting 3,3-dimethylbutanol to 3,3-dimethylbutanal by catalytic dehydrogenation.