Thioketals and thioethers are provided that inhibit the expression of VCAM-1, and which can be used in the treatment of VCAM-1 mediated diseases including inflammatory disorders, cardiovascular diseases, occular diseases, autoimmune diseases, neurological disorders, and cancer. In a specific application, an adsorbent comprising sodium-impregnated zeolite Y and alumina is used to purify an ethylene stream in order to remove CO2, H2S, methanol, and other S- and O-containing compounds. There are two embodiments one has as component a stand and a tongue while another embodiment is without a stand and has a hingedly movable tail. The video data and spatial orientation can be transmitted by a transceiver module to a disposed remotely station, so as to provide a spatially-oriented remote visual depiction of the scene. The clutch control mechanism may be a hydraulic clutch control. In a second operating mode, the first compressed air flow generated in the primary air compressor, is introduced into the cold storage system to discharge the cold reservoir and to generate a third compressed air flow at the second pressure level, which is introduced into the combustion unit.