A swash plate-type compressor includes a housing having a cylinder block with a plurality of cylinder bores formed therethrough. The method further can include defining a drop zone within the page to receive a dragged and dropped one of the content artifacts, the drop zone defining a consumable type of page content and an action to undertake when consuming a dropped one of the content artifacts having a particular type of page content consistent with the consumable type of page content. At least one polymer may be added to improve performance. An aqueous composition includes an alkali metal bisulfate in an amount from 0. The circuit adjusts the first signal by the second signal to generate an output signal indicative of the air pressure.