Abstract: Crystals having a modified regular tetrahedron shape are provided. Crystals preferably have four substantially identical triangular faces that define four truncated vertices and six chamfered edges. The six chamfered edges can have an average length of l, and an average width of w, and 8?l/w?9.5.

Abstract: An apparatus powered by piston buoyancy is provided to generate rotary power by utilizing the effects of buoyancy and includes a tank containing a volume of liquid below a liquid level. A crankshaft is provided and is rotatably mounted to the tank above the liquid level. The crankshaft includes a rotatable main shaft. A hollow piston is disposed within the liquid in the tank and is provided having an interior cavity, an open bottom and one or more movable trap doors located at the top of the piston. A piston rod connects the hollow piston to a section of the crankshaft offset from a longitudinal axis of the main shaft. A gas supply system is provided having an outlet positioned beneath the open bottom end of the piston to supply gas to the interior cavity of the hollow piston and cause the piston to move upward and rotate the crankshaft.

Abstract: A tissue containment device (10) for isolating tissue from surrounding tissue during a surgical procedure to remove the tissue includes a bag (12) formed by one or more walls (14) defining a containment compartment (16) and an opening (18) for accessing the containment compartment. Each wall (14) is formed from at least two layers including an inner layer (20) facing the containment compartment and an outer layer (22) facing outwards from bag (12). The layers define between them one or more inflatable volumes (24). Layers (20) and (22) are interconnected at spaced-apart connection regions (28) that are arranged such that, when a fluid is introduced into the inflatable volumes (24), regions of the at least two layers between the connection regions form wall cavity regions surrounding an internal volume of the containment compartment.

Abstract: Solid dosage formulations of nitazoxanide or a nitazoxanide analogue are provided that comprise a controlled release portion and an immediate release portion. The pharmaceutical composition is typically in the form of a bilayer solid oral dosage form comprising (a) a first layer comprising a first quantity of nitazoxanide or analogue thereof in a controlled release formulation; and (b) a second layer comprising a second quantity of nitazoxanide or analogue thereof in an immediate release formulation. Method of using the formulations in the treatment of hepatitis C are also provided.

Abstract: An apparatus powered by piston buoyancy is provided to generate rotary power by utilizing the effects of buoyancy and includes a tank containing a volume of liquid below a liquid level. A crankshaft is provided and is rotatably mounted to the tank above the liquid level. The crankshaft includes a rotatable main shaft. A hollow piston is disposed within the liquid in the tank and is provided having an interior cavity, an open bottom and one or more movable trap doors located at the top of the piston. A piston rod connects the hollow piston to a section of the crankshaft offset from a longitudinal axis of the main shaft. A gas supply system is provided having an outlet positioned beneath the open bottom end of the piston to supply gas to the interior cavity of the hollow piston and cause the piston to move upward and rotate the crankshaft.

Abstract: A system includes a first computing device having a first non-transitory machine-readable storage medium, first communication circuitry, and at least one first processor in communication with the first non-transitory machine-readable storage medium and the first communication circuitry. The at least one first processor is configured to execute instructions stored in the first non-transitory machine-readable storage medium to cause the first communication circuitry to receive a first signal from a first transmission medium, calculate a first authentication value for an object based on data included in the first signal, and cause the first communication circuitry to transmit a second signal to the first transmission medium. The second signal identifies whether the object is authentic based, at least in part, on the first authentication value.

Abstract: A workspace device including (a) a body having a wall defining an internal volume, collapsible to fit through a laparoscopic passageway in an abdominal wall to an abdominal cavity and expand therein; (b) a first opening defined in said body; (c) a tool channel contiguous with said first opening and extending from said body and configured to remain, at least in part, outside of abdominal wall and sized to receive a laparoscopic tool therein therein; and (d) the body defining an orifice configured to lie in said abdominal cavity when said body is inserted therein, said orifice sized to receive tissue with a minimal cross-sectional area that is twice a minimal cross-sectional area of said first opening, thereby defining a workspace volume to process said tissue in said cavity while said body is not collapsed, using a tool inserted through said first opening.

Abstract: A system for managing medical waste received in one or more containers placed at one or more medical facilities, for instance, for improved scheduling is disclosed. In some embodiments, the system comprises tracking modules coupled to the one or more containers, wherein each tracking module comprises, a plurality of LEDs positioned opposite to a plurality of light sensors, wherein each of the LED is being configured to periodically project a light beam towards a light sensor among plurality of light sensors for detecting a fill level of the container, and a controller in communication with the plurality of LEDs and the plurality of light sensors, wherein the controller is being configured for, periodically triggering the plurality of LEDs for projecting the light beams, receiving output data of the plurality of light sensors, the output data representing the fill level of the container, and communicating the fill level to a server.

Abstract: Modular frames for instructional use that provide secure mounts for geometric solids are presented. Some contemplated modular frames can be assembled into three dimensional modular devices and are particularly suitable for instructional purposes. Modular devices comprising two or more frames could be coupled via a clip in two or more different configurations. Containers including conductive material and configured to provide a Faraday cage around their contents are also provided.

Abstract: A thermal control system of an electric vehicle is provided. The thermal control system has a composite cooling architecture. The thermal control system is automatically operated in one of three operation modes to adjust a circulation path of a cooling liquid according to the ambient temperature, the power system temperature and the cabinet air temperature. Consequently, the temperature of the power system is stabilized, the performance and the use life of the power system are enhanced, and the power consumption of the air-conditioning system is reduced.

Abstract: Compounds and methods for use in detecting gabapentin in a sample suspected of containing gabapentin are disclosed. Gabapentin derivatives are used to produce gabapentin conjugates. A gabapentin-immunogenic carrier conjugate may be used as an immunogen for the preparation of an anti-gabapentin antibody. A gabapentin-detectable label may be used in a signal producing system in gabapentin assays.

Abstract: A system includes a first computing device having a first non-transitory machine-readable storage medium, first communication circuitry, and at least one first processor in communication with the first non-transitory machine-readable storage medium and the first communication circuitry. The at least one first processor is configured to execute instructions stored in the first non-transitory machine-readable storage medium to cause the first communication circuitry to receive a first signal from a first transmission medium, calculate a first authentication value for an object based on data included in the first signal, and cause the first communication circuitry to transmit a second signal to the first transmission medium. The second signal identifies whether the object is authentic based, at least in part, on the first authentication value.