A hermetic compressor is disposed with an annular motor stator, a motor rotor, a casing and plural spot joining portions. When the presence server 100 receives status information that indicates a status of presentity A from publisher B, the presence server 100 stores it in the history table 9 and transmits a change notification to a watcher C. The plurality of markings are each configured to identify a location of an anatomical feature within the perineum andor a needle insertion site corresponding to a targeted anatomical feature within the perineum, when the section is positioned over the perineum of a patient. The pre-perforated casing, permeable solid and formation are perforated and the resulting perforations filled with a curable composition which cures as an impermeable solid. The first mounting members are mountable on the belly plate and engageable with the end sections, respectively, for securing the belly plate to the frame. Gas streams with a molar concentration of sulfur dioxide from 1 to 100% may be processed to achieve nearly 100% sulfur recovery efficiency.