It defines and groups a project's discrete work elements in a way that helps organize and define the total work scope of the project. Worker - a person engaged in the accomplishment of work. In cost estimating, the hands-on workers contribute to the production and are counted in calculations of the production rate.
Crossbowman cocking an arbalest. The arbalest (also arblast) was a late variation of the crossbow coming into use in Europe during the 12th century. A large weapon, the arbalest had a steel prod (bow). Since the arbalest was much larger than earlier crossbows, and because of the greater tensile strength of steel, it had a greater force. The strongest windlass-pulled arbalests could have up to 22 kN (5000 lbf) of force and be accurate up to 100 m.
Candidal intertrigo is a specific infection of the skin folds (axillae, groin), characterized by reddened plaques, often with satellite pustules (Fig. 11). Thrush is oropharyngeal candidiasis, characterized by white nonadherent plaques on the tongue and buccal mucosa.