A method and search engine for classifying a source publishing a document on a portion of a network, includes steps of electronically receiving a document, based on the document, determining a source which published the document, and assigning a code to the document based on whether data associated with the document published by the source matches with data contained in a database. The optical fiber is connected directly or indirectly to a measurement instrument and is held by a carrier. The outbound proxy set includes outbound proxies. Search of views in a directory server can be performed by a filter rewriting process. The attachment device may also include one or more grooves or protrusions for the transmission of torque. In one embodiment, a gradient coil for a magnetic resonance imaging system may include a plurality of turns formed generally in a figure-eight.