The present invention relates to all facets of a novel polynucleotide, Tbx3-pr408, the polypeptides it encodes, antibodies and specific binding partners thereto, and their applications to research, diagnosis, drug discovery, therapy, clinical medicine, forensic science and medicine, etc. The synchronization signal is implemented as a reference or reset signal from which the alarm units derive a reference time to begin activation of the alarm units. A perforation is formed in the top of each flexible bumper and a plurality of ventilation channels are disposed underneath in a crisscrossed arrangement. , an IC chip, a circuit board, or a circuit film, is sealed with resin, using a mold which is composed of an upper mold half and a lower mold half with the lower mold half having a plurality of projections, one at a position corresponding to each of the external terminals.