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In this research, the authors design and implement a new mechanism to store shared data (context data) across several sessions in a World Wide Web (hereafter Web) system. The Web is being used more and more in client–server system architecture, and this trend is continuing. However, in a client–server system that uses a Web system, problems that did not occur on conventional client–server systems (those that do not use the Web) occur. One of these is storing context data. The HTTP (HyperText Transfer Protocol) protocol used in a Web system is a session, and as a result context data cannot be preserved. Although several mechanisms to store the context data have been proposed, each has problems with security and reliability. The authors have decided to use the so-called document view architecture in order to design a new context data storage mechanism to resolve these problems. This architecture provides the primary functions needed to store context data. The special characteristic of this new mechanism is found in storing context data in main memory on the client computer. In addition, the authors decided to introduce component-object technology to improve efficiency. This allows for a significant increase in security and reliability. Finally, the authors demonstrate the validity of their new context data storage mechanism using common applications. © 2003 Wiley Periodicals, Inc. Syst Comp Jpn, 34(3): 53–63, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/scj.10020 [ABSTRACT FROM AUTHOR]

A case of huge desmoid tumor successfully treated by hyperthermoradiotherapy is described. A 23-year-old man with familial adenomatous polyposis was operated upon for a desmoid tumor in the mesenterium involving the right kidney and small intestine in 1988. In 1990, the tumor recurred and could not be resected because of the involvement of the vena cava. The tumor grew larger and larger, and occupied two-thirds of the right lower quadrant. Several therapies using sulindac, tamoxifen, prednisolone, indomethacin, luteinizing hormone-releasing hormone analogue, and ascorbate were all ineffective. Finally, the combination of radiation and hyperthermia was used over a 6-month period. At the end of the hyperthermoradiotherapy, the tumor in the abdominal wall was markedly reduced in size, and the protruded abdominal wall became flat. To our best knowledge, this is the first report of the successful treatment of a huge desmoid tumor by hyperthermoradiotherapy. [ABSTRACT FROM AUTHOR]