An improved steel railroad rail, and methods for producing same, having a carbon content in a range from 0. Any of the coalesced mappings are sufficient to map all pages within the coalesced region. A dot pattern having dots on a transparent test chart sheet, facing the film, is photographed by image pickup upon reflection of the dot pattern on the film positioned on the inspecting surface. The inner surface of the trench has a first side wall and a second side wall located deeper than the first side wall and having a portion made of the second region. The inductor includes at least one metal loop over a shield pattern forming a first capacitor terminal over patterned oxide layer with a second capacitor layer between the patterned oxide layer and the substrate. In one embodiment, the magnetic memory comprises an array of memory cells configured to provide resistive states, and a read circuit.