Abstract: A body temperature management server executes: acquiring body temperature information indicating a body temperature of a user and associated with a user ID specifying the user; acquiring external information generated on the basis of preference information about the user; generating, on the basis of the body temperature information and the external information, recommendatory information for the user specified by the user ID; and outputting the generated recommendatory information.

Abstract: A body temperature management server executes: acquiring body temperature information indicating a body temperature of a user and associated with a user ID specifying the user; acquiring user information about the user associated with the user ID; acquiring an alert criterion in accordance with the user information; determining whether the body temperature information satisfies the alert criterion; generating alert information for issuing an alert about a health state of the user in association with the user ID when the body temperature information is determined to satisfy the alert criterion; and outputting the alert information.

Abstract: An information processing system includes a first user terminal that acquires body temperature information about a first user, and a second user terminal that presents the body temperature information to a second user. The first user terminal selects an input mode for use in acquiring the body temperature information from among a plurality of input modes each having distinctive reliability for body temperature information to be acquired, acquires the body temperature information in the selected input mode, and transmits the acquired body temperature information and input mode identification information indicating the selected input mode. The second user terminal receives the body temperature information and the input mode identification information, and causes a display part to display the body temperature information in a distinctive display manner in accordance with the input mode identification information.

Abstract: A method for analyzing the oxygen concentration of a gas with an oxygen concentration analyzer of such a type that a probe sensor, when supplied with a gas to be analyzed, produces an electrical output which is proportional to the concentration of oxygen in the gas, comprising the steps of preparing a first gas mixture in which an oxygen-free gas and a sample gas are mixed at a certain flow ratio and a second gas mixture in which the oxygen-free gas and the sample gas are mixed at a different flow ratio than in the first gas mixture, passing the first gas mixture and the second gas mixture asynchronously into the probe sensor, and comparing the electrical outputs from the sensor for the first gas mixture and the second gas mixture, as well as the proportions of the flow of the sample gas in the first gas mixture and the second gas mixture to thereby calculate the oxygen concentration in the sample gas.

Abstract: A method for analyzing the oxygen concentration of a gas with an oxygen concentration analyzer of such a type that a probe sensor, when supplied with a gas to be analyzed, produces an electrical output which is proportional to the concentration of oxygen in the gas, comprising the steps of preparing a first gas mixture in which an oxygen-free gas and a sample gas are mixed at a certain flow ratio and a second gas mixture in which the oxygen-free gas and the sample gas are mixed at a different flow ratio than in the first gas mixture, passing the first gas mixture and the second gas mixture asynchronously into the probe sensor, and comparing the electrical outputs from the sensor for the first gas mixture and the second gas mixture, as well as the proportions of the flow of the sample gas in the first gas mixture and the second gas mixture to thereby calculate the oxygen concentration in the sample gas.