The invention relates to a self-aligning antifriction bearing comprising at least one first row of rolling bodies and a second row of rolling bodies adjacent to said first row of rolling bodies, whereby every row comprises balls and rollers disposed peripherally about a central axis of the self-aligning antifriction bearing. The JIS A hardness of the conductive elastic layer is 30\xb0 or less. The chambers are connected by propagation path corridors. Upon the occurrence of the specified event, the protection action is enforced on the device to protect the data. The molecule has the formulawherein R* is a hydrophobic species and R** is a hydrophilic species which can be Ibuprofen is mixed with mesoporous silica and allowed to contact liquid carbon dioxide for a sufficient period of time to allow the Ibuprofen to load into the pores of the mesoporous silica.