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A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws.
On August 30, 1928, the Commission issued General Order 40, which set new standards for radio broadcasting. A "broadcast band" was defined, consisting of 96 frequencies, spaced every 10 kilohertz, from 550 to 1500 kHz. Six of them—690, 730, 840, 910, 960, and 1030—were restricted for use only by Canadian stations, leaving 90 available for ...
Mechanosensitive channels (MSCs), mechanosensitive ion channels or stretch-gated ion channels are membrane proteins capable of responding to mechanical stress over a wide dynamic range of external mechanical stimuli. [1][2][3][4] They are present in the membranes of organisms from the three domains of life: bacteria, archaea, and eukarya. [5]
Pages for logged out editors learn more. Contributions; Talk; Clear-channel stations
e. Ecological economics, bioeconomics, ecolonomy, eco-economics, or ecol-econ is both a transdisciplinary and an interdisciplinary field of academic research addressing the interdependence and coevolution of human economies and natural ecosystems, both intertemporally and spatially. [ 1 ] By treating the economy as a subsystem of Earth's larger ...
Clear Channel grew from 40 stations to 1,240 stations in seven years (30 times more than congressional regulation previously allowed) . [6] Their aggressive acquisitions have gained them enemies as well as supporters, but their ownership of 247 of the nation's 250 largest radio markets and their domination of the Top 40 format makes them ...
Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. [2]
Information theory. Information theory is the mathematical study of the quantification, storage, and communication of information. The field was established and put on a firm footing by Claude Shannon in the 1940s, [1] though early contributions were made in the 1920s through the works of Harry Nyquist and Ralph Hartley.