Abstract: An example information processing device may include an operation part and a sound input part. The information processing device may further include at least one processor configured to receive an operation performed with respect to the operation part and receive sound input to the sound input part. The at least one processor may further be configured to perform information processing based on the sound input to a sound input part and, when the operation performed with respect to the operation part is received, substantially invalidate the sound input to the sound input part.

Abstract: An example information processing device includes: an operation acceptance part for accepting operation performed with respect to an operation part; a sound information processing part for performing information processing based on sound input to a sound input part; and a sound invalidation part for substantially invalidating sound input to the sound input part when the operation with respect to the operation part is accepted by the operation acceptance part.

Abstract: A process for conducting optical resolution of a racemic mixture of an amino acid derivatives and a process for preparing an optically active amino acid using a catalytic antibody enantioselectively hydrolyzing an amino acid ester derivative are provided. The catalytic antibody and hybridoma producing said antibody are also provided. The hybridomas in the present invention are typically produced by stimulation with an antigen comprising as a hapten a compound of the formula: ##STR1## wherein CBZ is N-benzyloxycarbonyl.