Abstract: This is an adjustable basketball training device for a user's guide hand comprising upper arm, pivot, forearm, thumb, and finger components. The pivot component is pivotably connected to the upper arm component and rigidly coupled to the forearm component. The forearm component is rigidly coupled to both the thumb component using separate telescopic complexes, which allows the user to adjust the device for proper fit. The upper arm, forearm, thumb, and finger components are each secured to the user's upper arm, forearm, thumb, and at least one finger, respectively. As such, the basketball training device not only restricts flexion and opposition of the thumb but it restricts pronation of the user's forearm. In addition, the basketball training device restricts flexion, extension, radial deviation, and ulnar deviation of the user's wrist while allowing the user appropriate extension at the elbow joint during the entire shooting motion.

Abstract: A quantum circuit performing quantum computation in a quantum computer. A chosen transformation of an initial n-qubit state is probabilistically obtained. The circuit comprises a unitary quantum operator obtained from a non-unitary quantum operator, operating on an n-qubit state and an ancilla state. When operation on the ancilla state provides a success condition, computation is stopped. When operation on the ancilla state provides a failure condition, computation is performed again on the ancilla state and the n-qubit state obtained in the previous computation, until a success condition is obtained.