Abstract: In an example method for detecting indole, an indole producing bacterium, or an indole producing chemical, a polymeric detection tool is exposed to a sample and the polymeric detection tool is monitored for a red color change. The polymeric detection tool includes an acidic and oxygen soluble polymer and a nitrosation agent impregnated in walls of the acidic and oxygen soluble polymer. This example method can be used for detecting an indole producing bacterium in a body fluid sample.

Abstract: Approaches are disclosed for reducing a number of connections established by a server for a virtual meeting session. In some embodiments, the server receives a request to initiate a virtual meeting session involving a plurality of endpoints. The server may determine a location identifier for each of the plurality of endpoints based on location data generated by each of the plurality of endpoints. When the server determines that two or more of the plurality of endpoints are co-located at a location based on the location identifier, it can automatically establish only one connection on behalf of the two or more of the plurality of endpoints. The connection may be established to, e.g., a nearby conferencing device or one of the endpoints that are in the same location. The device or endpoint to which the connection is established may be determined based on which device or endpoint historically initiates virtual meetings.

Abstract: A coupler releasably couples a tube to a threaded port. The tube has a circumferential bead formed on one end to engage the coupler. The coupler includes a fitting with a threaded portion to threadedly engage the port. A central passage extends through the fitting and is made up of a first cavity, a second cavity, and a third cavity. The second cavity has a larger diameter than the third cavity, which is at least partially surrounded by the threaded portion of the fitting. When inserted into the central passage, the tube extends at least partially into the portion of the third cavity surrounded by the threaded portion of the fitting. The coupler further includes a retainer that engages the bead on the tube to limit movement of the tube relative to the retainer when the tube is inserted into the central passage.