Abstract: Disclosed is a cell classification method, to be executed by an analyzer, for classifying cells contained in a specimen, including: preparing a first measurement sample by treating a specimen under a first preparation condition; obtaining a first signal from the prepared first measurement sample; classifying, by using the first signal, cells contained in the first measurement sample; preparing a second measurement sample by treating the specimen under a second preparation condition different from the first preparation condition; obtaining a second signal from the prepared second measurement sample; classifying, by using the second signal, cells contained in the second measurement sample; and comparing a result of the cell classification performed by using the first signal and a result of the cell classification performed by using the second signal, with each other, and outputting an analysis result including a number of cells on the basis of a result of the comparison.

Abstract: The present concentration device includes a membrane module having a first and a second flow paths that are separated by a semipermeable membrane, the module including a U-shaped tube in which the semipermeable membrane is disposed, a first flow-path-inlet and a first flow-path-outlet connection parts, and a second flow-path-inlet and a second flow-path-outlet connection parts, the device including an introducing unit for introducing a subject solution with a predetermined pressure into the first flow path from the first flow-path-inlet connection part, separating the subject solution into a concentrate and a permeate through the semipermeable membrane, passing the permeate through the second flow path, draining the concentrate from the first flow-path-outlet connection part, introducing the subject solution with a pressure lower than the predetermined pressure into the second flow path from the second flow-path-inlet connection part, and draining a diluent diluted with the permeate, from the second flow-path

Abstract: A chat management apparatus allocates a plurality of chat rooms to talk servers in a distributed manner, and performs a control operation to switch to another talk server and deliver content when a failure occurs in one talk server. Further, by providing content posted from a user terminal to a history data storage unit, which is an independent external storage apparatus different from the talk servers, and storing the content, it makes unnecessary to perform synchronization processing of content data posted on a chat room even when the plurality of chat rooms is made redundant and managed in the plurality of talk servers in a distributed manner as a countermeasure against a failure.

Abstract: A chat management apparatus allocates a plurality of chat rooms to talk servers in a distributed manner, and performs a control operation to switch to another talk server and deliver content when a failure occurs in one talk server. Further, by providing content posted from a user terminal to a history data storage unit, which is an independent external storage apparatus different from the talk servers, and storing the content, it makes unnecessary to perform synchronization processing of content data posted on a chat room even when the plurality of chat rooms is made redundant and managed in the plurality of talk servers in a distributed manner as a countermeasure against a failure.