Abstract: Systems and methods for identifying a user with a publisher specific network based identifier. The method comprising: receiving a request for a unique user identifier associated with a user device that accesses the publisher; parsing a database for an existing user identifier associated with the user device for the publisher, the database storing a plurality of existing user identifiers associated with user devices for respective publishers; when the existing user identifier is found, returning the existing user identifier associated with the user device; otherwise: generating the unique user identifier; returning the unique user identifier; and storing the unique user identifier in the database in association with the user device and the publisher.

Abstract: An external fluidic system and methods of operating the same are provided. The fluidic system can be hot-swap connected to a flow-cytometer-based system at runtime to expand sheath or waste fluid storage capability of the flow-cytometer-based system by making only minimal changes to the flow-cytometer-based system. The external fluidic system can include a pump and a controller configured to operate the external fluidic system such that the sheath fluid is supplied from the external fluidic system to the flow-cytometer-based system or the waste fluid is extracted from the flow-cytometer-teased system and provided to the external fluidic system.