Corona discharge the electron-liberation is a high-energy photon from an atom within the plasma body relaxing after excitation from an earlier collision. The use of ionized neutral gas as a source of ionization is further diminished in a negative corona by the high-concentration of positive ions clustering around the curved electrode. Under other conditions, the collision of the positive species with the curved electrode can also cause electron liberation. The difference, then, between positive and negative coronas, in the matter of the generation of secondary electron avalanches, is that in a positive corona they are generated by the gas surrounding the plasma
Negative utilitarianism to negative well-being. Philosophers Gustaf Arrhenius and Krister Bykvist develop a taxonomy of negative utilitarian views based on how the views weigh disutility against positive utility. In total, they distinguish among 16 kinds of negative utilitarianism. They first distinguish between "strong negativism" and "weak negativism". Strong negativism "give all weight to disutility" and weak negativism "give some weight to positive utility, but more weight to disutility." The most commonly discussed subtypes are probably two versions of weak negative utilitarianism called 'lexical' and 'lexical threshold' negative utilitarianism. According to 'lexical' negative utilitarianism, positive utility gets weight only when outcomes are equal