The present disclosure is directed, in part, to an absorbent article comprising a liquid pervious material, a liquid impervious material, and an absorbent core disposed at least partially intermediate the liquid pervious material and the liquid impervious material. According to the gas diffusion electrode of the present invention, drainability of generated water from the electrode catalyst layer to the gas diffusion layer and moisture retention and gas diffusibility of the electrode catalyst layer can be enhanced. The lateral carriage assembly can include a first lateral track; a lateral trough coupled to the first lateral track; a second lateral track; and a lateral movement piece which is slidably coupled between the first lateral track and the second lateral track. This configuration allows light to be transmitted through the test strip and out the other end, as well as allowing some light to escape the deflector. When the two or more client devices write the program package to the integrating package, the program package of each of the two or more client devices is automatically written into a corresponding storage region. A control information determination section reads out relation information which associates a plurality of processing functions with one or more pieces of control information related to each of the plurality of processing functions from a storage section and determines a piece of control information related to the differential processing function on the basis of the relation information.