An electronic control unit installed on a high temperature heat source or in its vicinity exhibits an improved heat dissipation ability within its installation environment. The compounds provided include nucleotide sequences that are preferentially expressed in breast tumor tissue, as well as polypeptides encoded by such nucleotide sequences. In the present method a voltage is applied to a selected word line, and a voltage is applied to the second sourcedrain terminal of a transistor having its first sourcedrain terminal connected to a selected bit line. The boride may also be doped with small amounts of a metal chloride catalyst such as TiCl3 andor NiCl2. At least one venting channel has a lateral opening in the side wall of the intake connecting piece which opens essentially in a radial direction to the pump chamber. In response to detecting the one or more errors, a retransmitted data burst corresponding to the data burst is received.