Abstract: A heat-assisted magnetic recording head includes a laser, a near-field transducer, a primary waveguide, a secondary waveguide, and a photodiode. The laser is configured to emit electromagnetic radiation. The near-field transducer is configured to focus and emit an optical near-field. The primary waveguide configured to receive the electromagnetic radiation and propagate the electromagnetic radiation toward and proximal to the near-field transducer. The secondary waveguide configured to receive a portion of the electromagnetic radiation from the primary waveguide. The photodiode configured to receive the portion of the electromagnetic radiation from the secondary waveguide and emit a signal that represents a magnitude of the electromagnetic radiation that the laser emits.

Abstract: Provided herein are compositions and methods for the treatment of soft tissue injury, sports-related injury, physical overuse of muscles, ligaments or joints, and trauma, traumatic stress or sudden jolts on bones and tissues in an individual. Described herein are pharmaceutical compositions comprising a vasoconstrictor and, optionally, a topical analgesic and methods of using said compositions for the treatment of a variety of soft tissue injuries.

Abstract: A passive, manually operated counter conveniently displays a set of digits which define the mileage at which an oil change should be performed on a vehicle and a month display which defines the month of the next oil change.