The present invention relates to isolated polypeptides having phytase activity, the corresponding cloned DNA sequences, a process for preparing such polypeptides, and the use thereof for a number of industrial applications. An instruction issuance sequence for a plurality of threads of the multithreaded processor is controlled by associating with each of the threads at least one register which stores a value identifying a next thread to be permitted to issue one or more instructions, and utilizing the stored value to control the instruction issuance sequence. This maximum change of the function is determined by performing an optimization process that gives maximum growth subject to a sparsity regularized constraint. While there are a lot of documents to be copied or scanned, the image reading device can reduce some repeating operations and increase the convenience. The stores and sub-stores can provide all of the products and customizing components or just subsets thereof. Foam generated from the inlet liquid has biosolids adsorbed thereto and is collected within the aggregation chamber 153b for extraction.