This paper describes an analytical method for predicting whether a video display terminal will appear to flicker given the screen phosphor persistence, refresh frequencies, and other environmental factors such as ambient light level, the distance between the viewer and the display, etc. From the method, one can predict the maximum screen luminance and the minimum refresh frequency that will gen...

Ambient Occlusion is a method of creating shades on the scene, due to occlusion. It is a good looking approximation of the light radiation, however it is very expensive method. It needs a large number of samples to get fair effects. In this article we propose a speed increase of the AO rendering, by using the eye tracker. Human cannot see high frequency details in parafoveal, and we can render ...

Perspectives are central to paradox, from perceptual illusions (Bruno, N. (2001). When does action resist visual illusions? Trends in Cognitive Sciences, 5(9), 379–382), to dialetheism (Dietrich, E. (2008). The Bishop and Priest: Toward a point-of-view based epistemology of true contradictions. Logos Architekton. Journal of Logic and Philosophy of Science, 2, 35–58.; Dietrich & Webber, this iss...

background: the incomplete burning of fuel in engine of vehicles, evaporation of petrol from gas stations, and also car carburetor cause unburned hydrocarbons to be emitted in ambient air of cities and gas station locations. from unburned hydrocarbons; monocyclic aromatic hydrocarbon influence to citizen's health and benzene is known as carcinogenic compounds. the objectives of this study are t...

While the debate over unhealthy food environments and personal responsibility continues, the basic concept that social circumstances affect dietary intake is generally wellaccepted. How social factors exert their effects and whether the processes are amenable to change, however, are issues of primary interest and importance to public health nutrition professionals. In this edition of Public Hea...