A socket for an electrical part is provided with a socket body for accommodating an electrical part and a guide member is provided for the socket body so as to guide side surfaces of a body of the electrical part at the time of the accommodation thereof. In various embodiments, the multithreaded processor may throttle by scaling clock frequency andor voltage provided to the processor, based at least in part on the aggregated execution bandwidth requests of the threads. The base and protective structure combine to protect the laser level from damage due to being dropped or impacted. The light source, in one embodiment, can be an LED device capable of projecting a light beam with a predefined angle onto the first surface of OTST plate illuminating one or more status indicators. Fusion proteins having amino acid sequences from mitofusin transmembrane regions localize to mitochondria. Embodiments of compositions according to the present invention are useful, for example, for recovering hydrocarbons from subterranean clastic formations.