A feeding device for a table saw includes a sliding board slidably mounted on one side of a worktable of the table saw and having a moving direction corresponding to a saw blade. These compounds find use as inhibitors of potassium ion channels and thus are useful in the treatment of various conditions including arrhythmia and type-2 diabetes mellitus. The techniques may be implemented by a logical circuit block within the processor core that transforms the hardware thread-specific information to a logical representation of the hardware thread-specific information or the transformation may be performed by program instructions of an interrupt handler that traps access to the physical register containing the information. Read-aloud e-books may be provided that permit a student to control the rate of reading and identify areas where increased understanding is needed. The activator complexes of the invention are prepared, in general, by reacting a halogenated aryl Group 13 metal compound with a diol. The third switching unit selects and connects one of the second node and the light emitting element to the output terminal of the driving transistor.