Theatre in which the stage is located in the centre of the auditorium with the audience seated on all sides. The form evolved from Greek theatre and was used in medieval times. From the 17th century the proscenium stage limited audience seating to the area directly in front of the stage. In the 1930s, plays at Moscow's Realistic Theatre were produced in the round and the arena stage began to gain favour in Europe and the U.S. Its advantages are its informality and the rapport it creates between audience and actors, but it requires actors to turn constantly to address new sections of the audience.
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Nematode (Ascaris lumbricoides)
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English round, or simple perpetual canon, for three or more unaccompanied voices. Catches were sung by men as a popular pastime in the 16th–19th centuries. Catch texts were often humorous or ribald, and in some instances a pause in the melody in one voice was filled in by the notes and text of another, creating a pun or change of meaning, especially in the late-17th-century Restoration period.
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Round-trip delay time is significant in systems that require two-way "interactive" communication, such as voice telephony, or ACK/NAK data systems where the round-trip time directly affects the throughput rate, such as the Transmission Control Protocol (TCP). It may range from a very few microseconds for a short line-of-sight (LOS) radio system to many seconds for a multiple-link circuit with one or more satellite links involved. This includes the node delays as well as the media transit time.