Abstract: Systems, methods and apparatuses are provided that facilitate structured and semi-structured discussion environments for educational and commercial uses. The embodiments may allow students to participate in live, text-based chat groups to discuss any topic. Moreover, the embodiments may include analytical features to allow educators and administrators to track a wide variety of metrics relating to student behaviors, progress and/or discourse.

Abstract: An improved pump, reservoir and reservoir piston are provided for controlled delivery of fluids. A motor is operably coupled to a drive member, such as a drive screw, which is adapted to advance a plunger slide in response to operation of the motor. The plunger slide is removably coupled to the piston. A method, system, and an article of manufacture for automatically detecting an occlusion in a medication infusion pump is provided. The electrical current to an infusion pump is measured. Based on measurements of one or more variables, the infusion pump detects whether there is an occlusion in the system. The methods of detecting occlusions may be dynamic.

Abstract: An educational board game in which music students learn the names of the lines and spaces on the musical staff and their corresponding keys on the keyboard, comprising a folding game board, a key finder, instruction cards, dice and various colored game pieces. The board has a peripheral playing path representing a grand staff. The measures of the grand staff are spaces, each space having several letter notes. A representation of a keyboard is also provided on the board wherein the keys correspond to the letter notes on the grand staff. The players are each given seven playing pieces, each piece representing a musical letter note A-G. The object of the game is to advance each piece around the grand staff, moving the allotted spaces or measures, then ultimately moving the pieces to the corresponding keys on the keyboard.

Abstract: Signatures arranged in overlapping fashion are typically delivered from a press at high speeds (at the order of 80,000 per hour) to be stacked in bundles of a predetermined precise quantity, bundled and shipped to desired locations. During the delivery of signatures to the counting and bundling facility, typically referred to as the "mailroom," an extraction capability is provided wherein one or two signatures may be removed from the continuous stream without otherwise affecting the delivery of signatures to the stacking and bundling equipment. Alternatively, a number of copies greater than 2 may be extracted or paster copies inserted within the stream may be removed at high speed without interrupting the normal delivery of signatures to the stacking and bundling equipment.