Subthreshold stimuli may produce ventricular excitation when they fall within a limited period of the cardiac cycle. This phenomenon, known as the supernormal phase of conduction (Adrian, 1921), was shown in the anaesthetized animal to be from the beginning of the descending limb of the T wave, and the beginning of the U wave (Hoff and Nahum, 1938). Its presence in the human heart was first rep...

Purpose: General reduction of differential light sensitivity in glaucoma is a controversial issue. Purely diffuse visual field loss is not a sign of glaucoma, but it has been postulated that the best parts m the visual field are always affected to some extent. We studied the best parts of the visual field in a material of glaucomatow visual fields. Methods: Humphrey 30-2 threshold tests from 19...

Purpose: General reduction of differential light sensitivity in glaucoma is a controversial issue. Purely diffuse visual field loss is not a sign of glaucoma, but it has been postulated that the best parts m the visual field are always affected to some extent. We studied the best parts of the visual field in a material of glaucomatow visual fields. Methods: Humphrey 30-2 threshold tests from 19...

En esta investigación tratamos de relacionar y dejar patente el vínculo entre uso las redes sociales su labor en la construcción identidad con un cuidado sí, cultivo sí autoconocimiento vehiculado por lo que llamamos estética supernormal existencia. La estetización ofrece experiencia a través pantalla, especialmente RR. SS., junto repercusión accionamiento del comportamiento individuo, conforma...

This paper describes records of the transmembrane action potential of fibers from different parts of the specialized conducting system and electrograms recorded directly from these fibers in situ. On the basis of these records it is possible to describe certain physiologic mechanisms for conduction delay, block, and supernormal conduction. In general, impaired conduction is associated with a re...