Work of breathing When there is increased gas flow resistance, the optimal respiratory rate decreases. This work (generally during the inhalation phase) is stored as potential energy which is recovered during exhalation. A pressure difference is required to overcome the frictional resistance to gas flow due to viscosity, and to provide non-elastic components of movement of the airway tissues to accommodate pulmonary volume change. Total work done against non elastic forces is 35% of total. Work is defined as a force applied over a distance. The SI unit of work is the Joule, equivalent to a force of 1 Newton exerted along a
The Modern Theatre Is the Epic Theatre The Modern Theatre Is the Epic Theatre "The Modern Theatre Is the Epic Theatre" is a theoretical work by the twentieth-century German theatre practitioner Bertolt Brecht. It was composed in 1930 as a set of notes to accompany his opera "Rise and Fall of the City of Mahagonny". In it, he outlines his ideas for a "refunctioning" of the theatre, his principle of the 'separation of the elements" (conceived in opposition to Wagner's principle of the "integrated work of art"), and the "shifts of accent" involved in the move from traditional "dramatic" theatre to his own "epic" theatre. It also