The invention relates to a first-wall component of a fusion reactor, which comprises at least one heat shield of a graphitic material and a cooling tube of copper or a copper alloy. The compounds, salts and solvates of this invention are useful as LXR agonists. The microresonator is positioned within the microfluidic channel. Downstream of the combustion stage is the turbine stage. If the format size is smaller than a maximum available size on the storage medium, the control zones are positioned on substantially equal radial positions for forming radially corresponding annular data zones. The mass distribution of the lower muscle portion moves the center of gravity of the club head closer to the face center location.