Abstract: Quantum dot devices with three of more accumulation gates provided over a single row of a quantum dot formation region are disclosed. Each accumulation gate is electrically coupled to a respective doped region. In this manner, multiple single electron transistors (SETs) are provided along the row. Side and/or center screening gates may be used to apply microwave pulses for qubit control and to control electrostatics so that source and drain regions of the multiple SETs with quantum dots formed along the single row of a quantum dot formation region are sufficiently isolated from one another. Such quantum dot devices provide strong spatial localization of the quantum dots, good control over quantum dot interactions and manipulation, good scalability in the number of quantum dots included in the device, and/or design flexibility in making electrical connections to the quantum dot devices to integrate the quantum dot devices in larger computing devices.

Abstract: An ostomy bag cleaning method and apparatus for cleaning an ostomy bag which bag has a flexible bag portion with a stoma opening and a plurality of ostomy belt tabs each tab having an opening therein. The ostomy bag also has a drain opening and a closure for the drain opening. An ostomy bag cleaning tool includes a tool member having a pair of arms connected to each other at one end and an ostomy bag connector on the other end of each arm and shaped to fit into an ostomy bag belt holding tab opening for supporting the bag thereon. The ostomy bag connector can include the tip of each arm being formed in a generally U-shape with the tip of the U extending at a right angle away from the rest of the arm and having a resilient tip cover thereover.