A trench type power MOSFET has a thin vertical gate oxide along its side walls and a thickened oxide with a rounded bottom at the bottom of the trench to provide a low RDSON and increased VDSMAX and VGSMAX and a reduced Miller capacitance. The compounds activate human peroxisome proliferater activated receptors and are useful for the treatment of associated disorders such as dyslipidemia, syndrome X, hypercholesteremia, type II diabetes mellitus, type I diabetes, insulin resistance, hyperlipidemia, and obesity. The invention is useful for supplying and welding a heat sealing tubing in a fish market. A method of reconstructing a film-cooling insert for a turbine airfoil is also disclosed. The flow control pin has a head with a complementary geometry with that of the melt channel at a flow control surface. DNA coding for an immunogen is for stimulating antibody formation in a recipient and DNA coding for a non-immunogenic polypeptide is for gene therapy applications.