According to at least one embodiment, an apparatus for continuous collection of human waste products is disclosed. Part of the transformed beam has an intensity sufficient to heat a portion of the liquid crystal molecules above the phase transition temperature. hyo vaccine can be a whole or partial cell inactivated or modified live preparation, a subunit vaccine, or a nucleic acid or DNA vaccine. A therapeutic composition of the invention may be used to deliver the therapeutic agent and to treat various disorders. In many cases, the need to acquire global locks is eliminated, thereby saving the overhead attendant to processing global locks.