Abstract: A biocidal material and method of forming is provided. The biocidal material includes a carrier and a plurality of treated copper-containing particles including a particle surface pre-treatment. The surface pre-treatment includes a copper-chelating material.

Abstract: Devices, systems, and methods for treating lower back pain (e.g., chronic lower back pain) with electromagnetic stimulation are disclosed. A device for treating lower back pain can have a seat portion, a backrest portion, and an electromagnetic stimulation coil operatively associated with the backrest portion. The electromagnetic stimulation coil can be positioned to apply electromagnetic stimulation to a spine of a patient while the patient is seated on the seat portion.

Abstract: A lighted hand carried carrier having items stored therein. The carrier has an open but closeable closure and a closed bottom. a circular string of lights is placed at the closed bottom and is operable by a power source and a switch to illuminate the items stored in the carrier from below. The string of lights can also be placed in the vicinity of the top opening of the carrier to shine downwardly into the items stored therein. An intermediate string of lights can be included in the circular circuit of lights by way of connectors.

Abstract: A multiple purpose unitary work table for student study having inclinable surface portions for efficiently accommodating a plurality of individuals or alternatively providing a relatively large and substantially smooth work surface. Each of the surface portions may provide a horizontal study table or, alternatively, an inclined table surface for drawing or other laboratory purposes according to the desire of the user.