A urea synthesis process starting from ammonia and carbon dioxide carried out under a pressure of 12010 2 to 40010 2 KPa and a temperature of 140 to 215 C. The circuit is arranged such that the ratio of the current densities in the two transistors varies with temperature, such that the difference voltage includes a residual component which approximately compensates bandgap curvature error. If the ETT is an event ETT, the table ID extension field includes an event identification which specifies an identification number of an event associated with the ETT. The strip of core extends over a forward portion of the sweatband adjacent to the cap bill, but does not extend in a rear portion of the sweatband which is remote from the cap bill. Players obtain a collection of dice from a universe of distinctive dice and establish a set of dice from the collection.