An adjustable headboard for a carrier vehicle includes a hoop with a first frame member having a proximal end and a distal end, a second frame member having a proximal end and a distal end, and a connecting member extending between the distal end of the first frame member and the distal end of the second frame member. The inventive drying device contains a flat matrix with at least one regenerable drying agent. , brown adipocytes, and adipogenesis. One embodiment is an aqueous dispersion of vinyl sequential polymer of two phases: A) 40 to 90 wt-% of a vinyl polymer A with Tg from \u221250 to 30\xb0 C. An anode lead wire is connected to the connection area while being not connected to the anode terminal other than the connection area.