著者

安藤 聡 酒井 正彦 坂部 俊樹 草刈 圭一朗 西田 直樹 ANDO Satoshi SAKAI Masahiko SAKABE Toshiki KUSAKARI Keiichirou NISHIDA Naoki

出版者

一般社団法人電子情報通信学会

雑誌

電子情報通信学会技術研究報告. SS, ソフトウェアサイエンス (ISSN:09135685)

巻号頁・発行日

vol.112, no.23, pp.43-48, 2012-05

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Malbolgeは最も難解なプログラミング言語として知られている.高級アセンブリ言語の開発によりMalbolgeプログラムの作成が可能になっているものの,プログラム中で使用できる変数の値の最大値が固定されておりゲーデルコーディングが不可能であるため,配列機能がないのは記述力不足であった.本論文ではこの問題を解決するため,高級アセンブラに用いられている実現手法を整理し,これに配列機能のための命令である領域確保命令と間接参照命令を追加する方法を提案する. Malbolge is known to be one of the most esoteric programming languages. Although it is possible to write programs in Malbolge by the development of a high-level assembly language, lack of facility to manage individual data in a group of data like an array in language causes problem because Godel-coding is impossible in a program due to bounded values in variables. In this paper, in order to solve this problem, we show implementation issues used in the assembler in well-organized manner and propose a method for implementing a memory allocation instruction and an indirect reference instruction for array facility into the assembler.

著者

Ikeda Atsushi Kawai Koji Ando Satoshi Oikawa Takehiro Inai Hiromu Kimura Tomokazu Takaoka Ei-ichiro Yoshino Takayuki Suetomi Takahiro Kojima Takahiro Miyazaki Jun Nishiyama Hiroyuki

出版者

Oxford University Press.

雑誌

Japanese journal of clinical oncology (ISSN:03682811)

巻号頁・発行日

vol.42, no.8, pp.748-752, 2012-08

被引用文献数

8

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OBJECTIVE:Ureteral obstruction is one of the complications of testicular tumor with retroperitoneal lymph node metastasis that requires ureteral stenting for management. We elucidated the clinical courses of ureteral obstructions and changes in renal functions in patients with indwelling ureteral stenting.METHODS:The medical records of 56 patients who were treated for metastatic testicular tumors by chemotherapy at a single institute between 2002 and 2010 were retrospectively reviewed.RESULTS:Among 56 patients, 12 patients needed ureteral stenting before chemotherapy. The proportion of patients requiring ureteral stenting was significantly higher in seminoma than non-seminoma (47 and 12%, respectively, P < 0.05). The ureteral stent was removed after chemotherapy or retroperitoneal lymph node dissection in all patients, except for one patient who died of cancer during chemotherapy. At retroperitoneal lymph node dissection, ureters were spared in three patients, a partial ureterectomy was needed in one patient, and no case underwent adjunctive nephrectomy. These 11 patients presented no local and distant recurrence at median follow-up of 44 months. Ureteral stenting increased the estimated glomerular filtration rate to more than 60 ml/min before chemotherapy in all patients, but it decreased to <60 ml/min in 6 of 11 patients after chemotherapy.CONCLUSIONS:Ureteral obstruction due to testicular tumor was relieved after chemotherapy or retroperitoneal lymph node dissection. Ureteral stenting was effective to improve renal function before chemotherapy, although we should pay special attention to deterioration of renal function during or after chemotherapy.