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121Stage management — Part of a production manager s panel Stage management is the practice of organizing and coordinating a theatrical production. It encompasses a variety of activities, including organizing the production and coordinating communications between… …
122Conductor (transportation) — This article is about the railroad crew member. For other uses, see Conductor (disambiguation). An Amtrak train conductor A conductor is a member of a railway train s crew that is responsible for operational and safety duties that do not involve… …
123Depth perception — is the visual ability to perceive the world in three dimensions (3D) and the distance of an object. Depth sensation is the ability to move accurately, or to respond consistently, based on the distances of objects in an environment.[citation… …
124Competitive dance — A dance group strikes an ending pose at the conclusion of their competitive performance. Groups such as this are typically formed from students in a dance class. The dancers in this image are members of a tap dance class. Competitive dance is a… …
125Extremism — Extremists redirects here. For the DC Comics supervillain team, see Extremists (comics). Extremist redirects here. For the 1992 instrumental rock album, see The Extremist. For the comic book series, see The Extremist (comic). Extremism is any… …
126Opto-isolator — This article is about the electronic component. For the optical component, see optical isolator. Schematic diagram of an opto isolator showing source of light (LED) on the left, dielectric barrier in the center, and sensor (phototransistor) on… …
127Clinical psychology — Psychology …
128Coach (baseball) — Hall of Fame manager Connie Mack wearing a suit instead of a team uniform …
