Cell culture molecular biology primarily involves cultures of cells on flat plastic dishes. This technique is known as two-dimensional (2D) cell culture, and was first developed by Wilhelm Roux who, in 1885, removed a portion of the medullary plate of an embryonic chicken and maintained it in warm saline for several days on a flat glass plate. From the advance of polymer technology arose today's standard plastic dish for 2D cell culture, commonly known as the Petri dish. Julius Richard Petri, a German bacteriologist, is generally credited with this invention while working as an assistant to Robert Koch. Various researchers today also
Criticism of Dish Network UFC advised Dish customers to subscribe to its UFC.TV over the top streaming service, or watch at a venue served by another television provider. According to a Dish representative, the company is still in negotiations with UFC for future event carriage. On August 25, 2015, Dish Network dropped 129 stations in 79 markets owned and/or operated by Sinclair Broadcast Group, in what has been called the largest single blackout in pay-TV history. Dish claims that Sinclair is strong-arming them into carrying a cable network Sinclair is looking to acquire in addition to the local stations. Sinclair has rebutted by stating