Media in New York City Media in New York City New York City has been called the media capital of the world. The media of New York City are internationally influential and include some of the most important newspapers, largest publishing houses, biggest record companies, and most prolific television studios in the world. It is a major global center for the book and magazine publishing, music, newspaper, and television industries. New York is also the largest media market in North America (followed by Los Angeles, Chicago, and Toronto). Some of the city's media conglomerates include CNN (Turner), the Hearst Corporation, NBCUniversal, CBS, The New York
Polycrystalline silicon grain boundaries, see figure 1. The resistivity, mobility, and free-carrier concentration in monocrystalline silicon vary with doping concentration of the single crystal silicon. Whereas the doping of polycrystalline silicon does have an effect on the resistivity, mobility, and free-carrier concentration, these properties strongly depend on the polycrystalline grain size, which is a physical parameter that the material scientist can manipulate. Through the methods of crystallization to form polycrystalline silicon, an engineer can control the size of the polycrystalline grains which will vary the physical properties of the material. The use of polycrystalline silicon in the production of solar cells requires