Abstract: Representative methods, apparatus and systems are disclosed for providing concurrent electrical stimulation and electrical recording in a human or non-human subject, such as for neuromodulation, with the apparatus coupleable to an electrode array. A representative apparatus is typically an integrated circuit including: stimulation circuits, recording circuits, and blocking circuits responsive to control signals to block the stimulation voltage or current on an electrode from a corresponding recording circuit, while other recording circuits may simultaneously record electrical signals from other electrodes and generate recorded data.

Abstract: Representative methods, apparatus and systems are disclosed for providing concurrent electrical stimulation and electrical recording in a human or non-human subject, such as for neuromodulation, with the apparatus coupleable to an electrode array. A representative apparatus is typically an integrated circuit including: stimulation circuits, recording circuits, and blocking circuits responsive to control signals to block the stimulation voltage or current on an electrode from a corresponding recording circuit, while other recording circuits may simultaneously record electrical signals from other electrodes and generate recorded data.

Abstract: An extender accessory for a hand truck having a frame with two vertical frame portions, a plurality of cross bars connected between the frame portions, a pair of axle mounted wheels at lower ends of the frame portions and a platform extending forwardly from the lower ends of the frame portions. The extender accessory comprises an L-shaped support member being of a length longer than the width of the platform. A mechanism is for removably attaching the L-shaped support member against the lower ends of the frame portions and sit upon the platform. The L-shaped support member will overhang opposite sides of the platform, to allow the L-shaped support member to carry and stabilize a variety of loads placed thereon.

Abstract: A water-proof wood board having plastic paste between a core board and surface sheets to combine the core board and the surface sheets together. The plastic paste comprises polyvinyl chloride resin, the plastic paste being placed on top surface and bottom surfaces of the core board and penetrating into the wood grain of the core board and the surface sheets. The surface sheets are placed on at least two sides of the core board with the adhesive provided by the plastic paste. The plastic paste fills in between the core board and the surface sheets and penetrates into the wood grain of the core board and the surface sheets, which completely isolates the core board the wood board. Furthermore, plastic paste provides water-proof ability and insect-proof ability for the wood board.