Disclosed is a method for calculating a movement value of an optical mouse and an optical mouse using it. The method includes the steps of providing a biodegradable material, adding a pesticide into the biodegradable material, and spreading the pesticide-added biodegradable material on a plant-growing substrate. To reduce fluctuations of refractive index resulting from temperature gradients occurring within the immersion liquid, the projection exposure apparatus includes heat transfer elements that heat or cool partial volumes of the immersion liquid so as to achieve an at least substantially homogenous or at least substantially rotationally symmetric temperature distribution within the immersion liquid. Accordingly, access to the \u2018electronic wallet\u2019 is granted or denied based upon responses to challenges presented. The processing circuitry may be further configured to process the detected central auditory potentials. The shoe includes a stabilizer positioned in the shoe and having a heel portion in overlying relation to the cushion and a forward portion in overlying relation to at least a midfoot portion of the shoe bottom.