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
Modern Woman: The Lost Sex on the extent to which modern thought, confused over the unfulfilled promises of liberalistic doctrines, is seeking other faiths."" "Modern Woman: The Lost Sex" quickly became a bestseller upon its publication. Its popularity was due in part to Lundberg and Farnham's ability to see "the tremendous misery and discontent of modern times." The authors call upon the confusion and discontent following World War II and blame female independence and strength for the unhappiness, which thus provided psychological evidence for many American's beliefs concerning the modern woman. Marketed towards American women, the book gained success as a scientific work of popular