Quadruple jump controversy it is better to attempt a triple Axel, which is safer and more likely to be landed cleanly. Additionally, the difference in base value between a triple Axel and a triple lutz is 2.2 points, whereas between a quadruple toe and a triple Axel it is only 1.6 points. The degree of difficulty, however, between a triple Axel and a quad is greater than the degree of difficulty between a triple Lutz and a triple Axel. Following the figure skating competition in Vancouver, the ISU was urged to reexamine the scoring system at its general assembly scheduled for June, 2010,
Double beta decay or double beta decay are predicted to be very long; hence, quadruple beta decay is unlikely to be realized. The eight candidate nuclei for quadruple beta decay include Zr, Xe, and Nd capable of quadruple beta-minus decay, and Xe, Ba, Gd, and Dy capable of quadruple beta-plus decay or electron capture. In theory, quadruple beta decay may be experimentally observable in three of these nuclei, with the most promising candidate being Nd. Double beta decay In nuclear physics, double beta decay is a type of radioactive decay in which two neutrons are simultaneously transformed into two protons, or vice versa,