A ballast for powering a gas discharge lamp load comprises an inverter, an output circuit, and a fault detection circuit. Where one or more rhythm discriminators or qualifiers such as morphology, sudden onset, interval stability and AV association is enabled, the timer starts as soon as a ventricular interval or interval average is faster than a programmed maximum time to diagnosis cutoff. A cam is pivotally coupled to the body and is accommodated by the slot. The teardrop shape eliminates sharp corners found in rectangular frames and allows heat to dissipate radially in all directions. The invention also relates to the use of said catalyst in a process in order to improve the quality of diesel fractions. The method includes the step of creating a plurality noise texture values each corresponding to one of a plurality of image pixel values.