An index advisor specifies an optimal index configuration for use in performing workloads against a database managed by a database management system. Light is utilized to image the results of the measurements, in which the measuring time is shortened by estimating fluctuation attributable to the living body, and the presence or absence of a change in measured signal can be decided easily by displaying an estimation signal and a measured signal at a time. A clasp is positioned to latch the front side of the top portion to the front side of the bottom portion. Hybrid maize seed, plant or plant part produced by crossing the variety PH17RM or a locus conversion of PH17RM with another maize variety. The crucible and cover in these embodiments accommodate deposits without hindering the ability of the baffle to reduce contamination or interfere with the operation of the source. A supporting frame extends along the cylinder and across the lid and across the closed end of the cylinder, and prevents the lid from being displaced from the cylinder when pressure is generated inside of the vessel.