A fuse having a plurality of configurable thermal ceilings. The memory cells M1 to M4 are electrically coupled to the sub-bit lines SB1 to SB4 and the sub-bit line SB1, respectively. Specifically included is a safety directional indicator system comprising a flexible belt with a plurality of light transmitting bars disposed along the belt and having a plurality of LEDs disposed at one elongated end of each light transmitting bar and in operable communication with a control system for illuminating the LEDs in a manner to indicate a direction for traffic. Methods of fabricating polishing pads with a polishing surface layer bonded to a foundation layer are also described. If it is determined that authorization has not been established to access the first resource, the application is directed to communicate with a marketplace to obtain authorization to access the first resource.