A communication system performs adaptive scheduling by considering present and past reported CQI values and other indications of channel conditions in scheduling a Modulation and Coding Scheme and then executing a \u2018dithering\u2019 function in order to effectuate an MCS that is intermediate between adjacent discrete MCSs. Each listening period is open for a prescribed period of time and is spaced from successive listening periods by an interval. At least two of the optical fibers in the bundle are utilized as a source of radiation, these two fibers are at two different angles from normal. This first composite frame of the first type comprises one or more left-eye pixel values from the first left-eye frame and one or more right-eye pixel values from the first right-eye frame. The composition gives a post-crosslink PSA having a gel fraction of 20 to 55 mass %. In various approaches, one or more of downhole components, surfaces or structure can embody polymer derived ceramic material, and, in particular, polysilocarb derived material and polysilocarb derived ceramic material.