Abstract: A centrifuge tube assembly includes an elongate tubular receptacle having a capped upper end. The capped upper end includes a single inlet/outlet port formed therethrough for communication with an interior of the tubular receptacle. A flexible aspiration pipe is communicably engaged with the inlet/outlet port for extending longitudinally through the cylindrical receptacle. A sealing diaphragm is attached to a distal end of the pipe. The diaphragm is longitudinally movable within the tubular receptacle and sealably interengages an interior wall of the receptacle. Biological products are introduced into and aspirated from the receptacle below the diaphragm by the fluid conducting pipe.

Abstract: An Internet-scale file sharing system includes a client-side file sharing application that allows file-sharing users to identify files to share and transmit metadata corresponding to those files to a metadata repository. A server-side application operating on the metadata repository tracks metadata received from associated file-sharing users, as well as metadata from other affiliated metadata repositories. Each metadata repository acts as a search engine for any querying users and can provide search results based on locally stored metadata alone. Each metadata repository may additionally choose to locally-store popular files from an associated file-sharing user so as to alleviate transmission burdens on that file-sharing user. Associated metadata repositories each periodically synchronize their stored metadata so that all metadata repositories may generate similar search results.

Abstract: A dual lumen syringe includes a body having a pair of elongate cavities or lumens formed therein. A directional valve is associated with each lumen. The valve is alternated between the first position wherein the lumen is communicably connected to a fluid inlet and a second position wherein the lumen is connected with a fluid outlet. There are a pair of elongate plungers, which are fixedly interconnected by a handle. Each plunger is received and longitudinally slidable in a reciprocating manner through a respective lumen. The valves are switched to a first position wherein the lumens are interconnected with the fluid inlets and the plunger is retracted to aspirate fluids through the respective inlets and into the lumens. The valves are then switched to a second position to communicably interconnect the lumens with the outlets.

Abstract: The systems and methods of this invention use an index and digital audio and/or video recordings of an activity to provide access to recently recorded material. For example, users initiate audio and/or video recordings. An index, e.g., an agenda, outlines the structure of the to be recorded event. The user selects an index item as an activity that corresponds to an index item is recorded. The recordings are then associated with the index. The user can then randomly access the recordings for playback, editing or further recording. The systems and methods of this invention additionally provide the means for correlating events and the corresponding index items with the recordings.

Abstract: A centrifuge tube assembly includes an elongate tubular receptacle and a cap that attached to the receptacle. The cap includes a pair of ports formed therethrough for communicating with an interior of the tubular receptacle. A pair of aspiration pipes having different lengths are engaged with the respective ports and extend longitudinally through the cylindrical receptacle. One of the pipes extends to a point proximate the bottom of the tubular receptacle and the other pipe extends to a level spaced above the bottom of the tube.

Abstract: A centrifuge tube assembly includes an elongate tubular receptacle and a cap that attached to the receptacle. The cap includes a pair of ports formed therethrough for communicating with an interior of the tubular receptacle. A pair of aspiration pipes having different lengths are engaged with the respective ports and extend longitudinally through the cylindrical receptacle. One of the pipes extends to a point proximate the bottom of the tubular receptacle and the other pipe extends to a level spaced above the bottom of the tube.