A straddle carrier having an electric drive system, consisting of a lower and an upper frame, which are connected with one another by means of supports. The semiconductor device includes unit elements, each of which has a detecting unit and a unit signal generating unit. The Ni layer has the functions of not only suppressing any diffusion of the Ni\u2014Co alloy layer into the solder layer at about 235\xb0 C. The aggregate is an inorganic aggregate containing at least Si, and a weight ratio of Ca, Si, and Al in the aggregate in terms of oxides expressed as CaO is not higher than 0. A display configured to display, after the first image is extracted, a plurality of X-ray images that have been generated prior to the first image in reverse chronological order. Osteoarthritic changes associated with Nfat1 deficiency are characterized by articular cartilage degradation, articular chondrocyte proliferationclustering, progressive articular surface destruction, periarticular chondro-osteophyte formation, and exposure of thickened subchondral bone.