A method and apparatus for speech recognition of the present application has a process to collate, with an input utterance, an acoustic model corresponding to a hypothesis to be expressed by the connection of utterance segments, such as phonemes or syllables, and developed according to a length of an input utterance by an inter-word connection rule thereby obtaining a recognition score. These compounds are poly polymerase inhibitors. Thus, the method is capable of informing a user of a channel change by outputting a channel audio guide signal, allowing the user to audibly check a changed channel. Even if p is small, the driving force sequence can be formed in geometric progression with an extremely low increasing rate. The snap-through thermal actuator further comprises apparatus adapted to apply a heat pulse to the deformable element which causes a sudden rise in the temperature of the deformable element. In one embodiment a method is disclosed for producing a sintered particle group of hydroxyapatite, which includes a step of subjecting a system wherein calcium carbonate is present between primary particles of hydroxyapatite to sintering and then dissolving calcium carbonate with water to remove calcium carbonate.