Process for preparing barium titanate or strontium titanate by reacting titanium alkoxides with barium hydroxide hydrate or strontium hydroxide hydrate in a C1\u2013C8-alcohol or a glycol ether at from 50 to 150\xb0 C. In one embodiment a space containing an object for which an image is to be rendered and displayed to a user is divided into subspaces. The invention also relates to nucleic acid molecules encoding anti-TR4 antibodies, vectors and host cells containing these nucleic acids, and methods for producing the same. The display may provide a user interface to enable a user to quickly organize other mobile devices into groups and initiate group communications with some of the other mobile devices.