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JaLCDOI 10.18926/AMO/40506
フルテキストURL 64_5_307.pdf
著者 Kang, Hyun| Cha, Su-Man| Park, Sun-Gyoo| Jung, Yong-Hun| Woo, Young-Cheol| Kim, Jin-Yun| Koo, Gill-Hoi| Kim, Seong-Deok| Baek, Chong-Wha|
抄録 It is not known whether changing from isoflurane to desflurane during the latter part of anesthesia shows early emergence and recovery in long surgery. We therefore evaluated the effects of changing isoflurane to desflurane on emergence and recovery. Eighty-two patients were randomly assigned to receive isoflurane (Group I) or desflurane (Group D) or to change from isoflurane to desflurane anesthesia (Group X). At the point when there was an hour until the operation would end, isoflurane was replaced with 1 MAC of desflurane in Group X, and isoflurane and desflurane were maintained at 1 MAC in Groups I and D. When the operation ended, we compared the emergence and recovery characteristics among the 3 groups. Compared with Group I, Group X showed faster emergence and recovery. Group X and Group D showed similar emergence and recovery. In conclusion, changing isoflurane to desflurane during the latter part of anesthesia improves emergence and recovery.
キーワード desflurane isoflurane laparotomy recovery
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 307
終了ページ 316
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975764
Web of Science KeyUT 000283563300006
JaLCDOI 10.18926/AMO/40505
フルテキストURL 64_5_299.pdf
著者 Sanomura, Takayuki| Ikeda, Fusao| Katoh, Tsutomu| Hosokawa, Kazue| Suzuki, Seiyuu| Nishiyama, Yoshihiro|
抄録 Tumor protrusion in hepatocellular carcinoma (HCC) is one of the risk signs of tumor rupture. Despite curative tumor treatments, HCC recurrences sometimes occur with rapidly growing humped or ruptured HCC in small sized tumors. The aim of this study was to clarify the characteristics of humped HCC clinically and radiologically associated with tumor progression, liver damage, and treatment. The subjects were 179 consecutive HCC patients who underwent angiographic examination. Dynamic studies, using helical computed tomography and magnetic resonance imaging were assessed, and the HCC area were measured. The tumor-node-metastasis (TNM) stage differed significantly between the humped and non-humped HCC groups. Humped HCC was more frequently observed in the right lobe (29.3% of right-lobe HCCs) than in the left (10.1%;p=0.003). Analysis of recurrent HCC revealed that patients with multiple treatments of >4 sessions had more humped HCC (33.8%) than those with 1-3 sessions (16.7%;p=0.042). Multivariate regression analysis revealed that tumor invasion in the portal vein, rather than large tumor size, was significantly associated with tumor protrusion. HCC recurrence with humped HCC occurs often in patients with multiple treatments. Tumor factors of the TNM classification, especially tumor invasion in the portal vein, might be associated with the mechanisms of tumor protrusion.
キーワード humped HCC tumor protrusion
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 299
終了ページ 305
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975763
Web of Science KeyUT 000283563300005
JaLCDOI 10.18926/AMO/40504
フルテキストURL 64_5_293.pdf
著者 Sugimoto, Yoshihisa| Ito, Yasuo| Tomioka, Masao| Shimokawa, Tetsuya| Shiozaki, Yasuyuki| Mazaki, Tetsuro| Tanaka, Masato|
抄録 We used a navigation system to insert 128 pedicle screws into 69 vertebrae (L1 to L3) of 49 consecutive patients. We assessed the pedicle isthmic width and the permission angle for pedicle screw insertion. The permission angle is the angle defined by the greatest medial and lateral trajectories allowable when placing the screw through the center of the pedicle. The rate of narrow-width pedicles (isthmic width less than 5mm) was 5 of 60 pedicles (8%) at L1, 4 of 60 pedicles (7%) at L2, and none (0%) at L3, L4 and L5. The rate of narrow-angle pedicles (a permission angle less than 15 degrees) was 21 of 60 pedicles (35%) at L1, 7 of 60 (12%) at L2, 3 of 60 (5%) at L3, and none (0%) at L4 and L5. Of 128 pedicle screws inserted into 69 vertebrae from L1 to L3, 125 (97.7%) were classified as Grade 1 (no pedicle perforation). In general, the upper lumbar vertebrae have more narrow-width and -angle pedicles. However, we could reduce the rate of pedicle screw misplacement in upper lumbar vertebra using a three-dimensional fluoroscopy and navigation system.
キーワード upper lumbar navigation pedicle screw anatomy misplacement
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 293
終了ページ 297
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975762
Web of Science KeyUT 000283563300004
JaLCDOI 10.18926/AMO/40503
フルテキストURL 64_5_285.pdf
著者 Nishimori, Hisakazu| Takahashi, Shunji| Kiura, Katsuyuki| Ennishi, Daisuke| Kobayashi, Takayuki| Sano, Koji| Shinozaki, Eiji| Yokoyama, Masahiro| Mishima, Yuko| Terui, Yasuhito| Chin, Keisho| Mizunuma, Nobuyuki| Ito, Yoshinori| Nishimura, Seiichiro| Takeuchi, Kengo| Ishikawa, Yuichi| Oguchi, Masahiko| Tanimoto, Mitsune| Hatake, Kiyohiko|
抄録 We evaluated the efficacy and toxicity of cisplatin/docetaxel (CDDP/TXT) chemotherapy and identified prognostic factors in Japanese patients with cancer of unknown primary site (CUP). Twenty-eight consecutive patients seen at a single institute were reviewed retrospectively. Sixteen patients were treated with TXT 80mg/m2, followed by CDDP 75mg/m2. The overall response rate to CDDP/TXT treatment was 62.5%, with a median survival time (MST) of 22.7 months. Common adverse reactions were myelosuppression and hyponatremia. The MST of all 28 patients with CUP was 8.3 months, and the 1-year overall survival rate was 45.6%. Univariate analysis identified 5 prognostic factors:performance status, liver involvement, bone involvement, pleural involvement, and lymph node involvement. In conclusion, CDDP/TXT chemotherapy is effective with tolerable toxicity in patients with CUP. Japanese patients with CUP might be chemosensitive and may survive longer.
キーワード cancer of unknown primary site (CUP) cisplatin docetaxel prognosis
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 285
終了ページ 291
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975761
Web of Science KeyUT 000283563300003
JaLCDOI 10.18926/AMO/40502
フルテキストURL 64_5_277.pdf
著者 Kumase, Fumiaki| Morizane, Yuki| Mohri, Satoshi| Takasu, Ippei| Ohtsuka, Aiji| Ohtsuki, Hiroshi|
抄録 Endothelial glycocalyx (GCX) has been reported as a protective factor for vascular endothelial cells (VEC) in diabetes and hypertension. However, the involvement of GCX impairment in ocular vasculopathy remains unclear. We evaluated the changes in the GCX thicknesses of the retinal and choroidal capillaries in rats with diabetes and hypertension by cationic colloidal iron staining using a transmission electron microscope. In the control group, the mean (standard error of the mean) thicknesses of retinal and choroidal GCX were 60.2 (1.5) nm and 84.3 (3.1) nm, respectively. The diabetic rats showed a significant decrease of GCX thickness in the retina, but not in the choroid, compared to controls (28.3 (0.3) nm, p<0.01 and 77.8 (1.4) nm, respectively). In the hypertensive rats, both retinal and choroidal GCX were significantly decreased compared to the control values (10.9 (0.4) nm and 13.2 (1.0) nm, respectively, both p<0.01). Moreover, we could visualize the adhesion of leukocytes and platelets on the luminal surface of VEC, at the site where the GCX was markedly degraded. These findings suggest that the GCX prevents adhesion of leukocytes and platelets to the VEC surface, and this impairment may lead to ocular vasculopathy in diabetes and hypertension.
キーワード glycocalyx retina choroid diabetes hypertension
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 277
終了ページ 283
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975760
Web of Science KeyUT 000283563300002
JaLCDOI 10.18926/AMO/40501
フルテキストURL 64_5_267.pdf
著者 Sagara, Hidenori| Sendo, Toshiaki| Gomita, Yutaka|
抄録 In the runway model of intracranial self-stimulation (ICSS) experimentation, the experimental animal is timed in running a fixed distance to depress a lever that releases electrical stimulation to an electrode implanted along its medial forebrain bundle. This ICSS has both a reward and a motivational component. Using the runway method and priming stimulation, we designed an experimental method for directly measuring motivation. An assessment of pharmacological agents that are known to influence motivational states was also undertaken. Using the experimental methods that we created, we observed prominent changes in running speed when animals were exposed to methamphetamine and nicotine. According to these data, the runway method employing intracranial self-stimulation behavior may be useful for the evaluation of substances that act on motivation. We review the underlying neuropharmacological and anatomical functions associated with our experimental methods. We hope that this technique will be used to scientifically evaluate the impact of drugs and/or therapeutic interventions on human motivation.
キーワード intracranial self-stimulation behavior motivational effect methamphetamine nicotine
Amo Type Review
出版物タイトル Acta Medica Okayama
発行日 2010-10
64巻
5号
出版者 Okayama University Medical School
開始ページ 267
終了ページ 275
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 CopyrightⒸ 2010 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 20975759
Web of Science KeyUT 000283563300001
JaLCDOI 10.18926/OER/40500
フルテキストURL oer_037_2_057_063.pdf
著者 Yokoo, Masanori|
抄録 In many standard undergraduate textbooks of macroeconomics, open economies are discussed by means of the Mundell−Fleming model, an open macroeconomic version of the IS−LM model. This short paper develops a simple differential−equation version of the dynamic Mundell−Fleming model, taking account of two key assumptions : (i) the Marshall−Lerner condition is globally violated and (ii) the investment function depends nonlinearly on the current output level. Under our settings, we demonstrate that the exchange rate and the other relevant variables can display persistent fluctuations due to the occurrence of a stable limit cycle. We also discuss a paradox that the resulting dynamics may well be consistent with the J−curve effect.
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-09-10
37巻
2号
開始ページ 57
終了ページ 63
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 英語
論文のバージョン publisher
NAID 120002514605
JaLCDOI 10.18926/OER/40499
タイトル(別表記) A Study on the Executive’s Business Values Tradition : The Case Study of Shonosuke Hayashi at YOSHIMOTO KOGYO Applied the Metaphor for Gene Tradition
フルテキストURL oer_037_2_037_056.pdf
著者 松田 陽一|
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-09-10
37巻
2号
開始ページ 37
終了ページ 56
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002514606
JaLCDOI 10.18926/OER/40498
タイトル(別表記) Evaluation of Overseas Investment Projects
フルテキストURL oer_037_2_019_036.pdf
著者 小山 泰宏|
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-09-10
37巻
2号
開始ページ 19
終了ページ 36
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002514604
JaLCDOI 10.18926/OER/40490
タイトル(別表記) CH Associates, A History of the Bureau of the Public Debt, 1940−1990 : with historical highlights from 1789−1939
フルテキストURL oer_037_1_131_148.pdf
著者 一ノ瀬 篤|
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 131
終了ページ 148
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002514602
JaLCDOI 10.18926/OER/40489
タイトル(別表記) Wirtschaftshistoriker Iosif Mikhailovich Kulisher -SeineWerke, sein Leben, seine Familie-
フルテキストURL oer_037_1_103_130.pdf
著者 松尾 展成|
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 103
終了ページ 130
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002514601
JaLCDOI 10.18926/OER/40488
フルテキストURL oer_037_1_063_088.pdf
著者 Fujii, Daiji|
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 63
終了ページ 88
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 英語
論文のバージョン publisher
NAID 120002514600
JaLCDOI 10.18926/OER/40487
フルテキストURL oer_037_1_053_061.pdf
著者 Yokoo, Masanori|
抄録 This paper considers a dynamic commons game in relation with mitigation of invasive alien species such as nutria in Okayama. In our commons game, players (trappers) non−cooperatively seek to maximize their own payoff by extracting the renewable resource stock (nutria). One key assumption is that the cost of extraction of the resource is negatively related to the current stock level. For a low level of resource stock, the extraction cost is high, which makes the extraction less lucrative for the players and which in turn stimulates the renewable resource stock to regenerate more rapidly. As the resource stock reaches a high level, the reverse process will start, and this can cause oscillating behaviors. Our simple model proposed here exemplifies that an increase in the number of players can drastically change the qualitative as well as quantitative features of the dynamics for the renewable resource stock.
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 53
終了ページ 61
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 英語
論文のバージョン publisher
NAID 120002514603
JaLCDOI 10.18926/OER/40447
タイトル(別表記) Market Risk and Private Risk −Financial Appraisal of Investment Projects−
フルテキストURL oer_037_1_035_051.pdf
著者 小山 泰宏|
抄録 The purpose of this paper is to examine one of the functions which entrepreneurs may play in the course of industrial development through a case study of Japan’s RPG development race. As Japan’s toy manufacturers often said, their market was characteristic of its small size and considerable demand volatility in comparison to other consumer products. Entrepreneurs must have seen any commitment to a cutting edge product, video games, as only a gamble and therefore behaved in a trial−and−error way. Furthermore, judging from the fact that no one could imagine the video game would come to turn over ¥1500 billion in 20 years, the firm level trial−and−errors and their subsequent variety of strategies on the industry level must have been the key to understand the unexpected market growth and technical evolution. However, recent management thoughts told us that the strategic variety in an industry could be possibly indulged by various pressures towards homogeneity. Such counter powers are referred to as organizational isomorphism, strategic bandwagon effects and so on. To examine those pressures which drive entrepreneurs back and forth towards strategic variety, this paper looks at the structural characteristics which underlie the way entrepreneurs see things in an uncertain environment. The case analysis takes the view that the video game industry was so uncertain that nothing could affect so deterministically entrepreneurs’ behaviours other than their perceptions. As a conclusion here, this paper points out some tradeoffs underlying the two different strategies which the twin peaks of Japanese RPG producers, Square and Enix, employed to meet with the uncertainty of the infant RPG market. It also argues that these tradeoffs based on two different perceptions might have kept their startups from the isomorphic indulgence. As a more prospective argument, questioned is the quality of strategic variety which is often deemed as an unquestionable remedy to industrial stagnation.
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 35
終了ページ 51
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002509311
JaLCDOI 10.18926/OER/40446
タイトル(別表記) Entrepreneurial Choices in Strategic Options in Japan’s RPG Development
フルテキストURL oer_037_1_019_034.pdf
著者 藤井 大児|
抄録 The purpose of this paper is to examine one of the functions which entrepreneurs may play in the course of industrial development through a case study of Japan’s RPG development race. As Japan’s toy manufacturers often said, their market was characteristic of its small size and considerable demand volatility in comparison to other consumer products. Entrepreneurs must have seen any commitment to a cutting edge product, video games, as only a gamble and therefore behaved in a trial−and−error way. Furthermore, judging from the fact that no one could imagine the video game would come to turn over ¥1500 billion in 20 years, the firm level trial−and−errors and their subsequent variety of strategies on the industry level must have been the key to understand the unexpected market growth and technical evolution. However, recent management thoughts told us that the strategic variety in an industry could be possibly indulged by various pressures towards homogeneity. Such counter powers are referred to as organizational isomorphism, strategic bandwagon effects and so on. To examine those pressures which drive entrepreneurs back and forth towards strategic variety, this paper looks at the structural characteristics which underlie the way entrepreneurs see things in an uncertain environment. The case analysis takes the view that the video game industry was so uncertain that nothing could affect so deterministically entrepreneurs’ behaviours other than their perceptions. As a conclusion here, this paper points out some tradeoffs underlying the two different strategies which the twin peaks of Japanese RPG producers, Square and Enix, employed to meet with the uncertainty of the infant RPG market. It also argues that these tradeoffs based on two different perceptions might have kept their startups from the isomorphic indulgence. As a more prospective argument, questioned is the quality of strategic variety which is often deemed as an unquestionable remedy to industrial stagnation.
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 19
終了ページ 34
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 日本語
論文のバージョン publisher
NAID 120002509310
JaLCDOI 10.18926/OER/40445
フルテキストURL oer_037_1_001_018.pdf
著者 Ali, Md. Mohobbot| Konishi, Noriyuki|
抄録 The study attempts to analyze the ins and outs of the risk reporting guidelines in UK. The guidelines advocate for the voluntary adoption of risk reporting through annual reports of the company. This voluntary reporting of risk will ensure the transparency and efficiency of the company management that eventually help the company to obtain funds from the capital market with the possible lowest cost. They also advise to disclose material / relevant risk information in a proper way so that the users can take their economic decision based on those disclosed information. On the other hand, company need not to disclose the commercially sensitive risk information, as it can give advantage to the rival companies. This risk reporting guidelines are also having some weaknesses. Such as, they mention about inverse relationship between level of disclosed risk information and cost of capital without any empirical evidence. Guidelines give a vague direction about the commercial sensitive risk information because companies can hide some important risk information on the ground of commercial sensitivity if needed. Other lacking include unavailability of suitable / reliable risk identification and measurement tools, expectation about common knowledge and so on.
出版物タイトル 岡山大学経済学会雑誌
発行日 2005-06-10
37巻
1号
開始ページ 1
終了ページ 18
ISSN 0386-3069
関連URL http://www.e.okayama-u.ac.jp/gakkai/
言語 英語
論文のバージョン publisher
NAID 120002509309
著者 岡山大学溫泉研究所|
発行日 1955-03-25
出版物タイトル 岡山大学温泉研究所報告
15巻
資料タイプ その他
著者 岡山大学溫泉研究所|
発行日 1955-03-25
出版物タイトル 岡山大学温泉研究所報告
15巻
資料タイプ その他
著者 岡山大学溫泉研究所|
発行日 1955-03-25
出版物タイトル 岡山大学温泉研究所報告
15巻
資料タイプ その他
JaLCDOI 10.18926/40433
タイトル(別表記) A CASE OF CONGENITAL HAEMOLYTIC JAUNDICE
フルテキストURL 012_052_056.pdf
著者 音田 作衛|
抄録 A case of congenital haemolytic jaundice was reported. The patient showed a remarkable improvement shortly after splenectomy. One of his 6 children, a boy of 7 years is still suffering from haemolytic anaemia.
出版物タイトル 岡山大学温泉研究所報告
発行日 1953-09
12巻
開始ページ 52
終了ページ 56
ISSN 0369-7142
言語 日本語
論文のバージョン publisher
NAID 40017532445