result 3823 件
| JaLCDOI | 10.18926/15252 |
|---|---|
| Title Alternative | Extended-cycle processによる乳房撮影用増感紙／フィルムシステムの画質改善 |
| FullText URL | 009_2_083_090.pdf |
| Author | Goto, Sachiko| Maruyama, Toshinori| Azuma, Yoshiharu| Nakagiri, Yoshitada| Takeda, Yoshihiro| Sugita, Katsuhiko| Kimura, Fumie| Kadohisa, Shigefumi| |
| Abstract | Extended-cycle process is the term used for a processor in which the processing time has been prolonged usually to approximate 210 seconds. It has been known that the extended-cycle process of some single-emulsion films as used for mammography may enhance film contrast and increase film speed. So the speed was increased in lower speed and higher resolution system than conventional systems by means of using the extended-cycle process in this paper. We investigated how much the resolution of the system was kept. A single screen-single emulsion combination, Konica M-100/CM-H was employed as a low speed and high resolution system. This film after exposure was processed in the different combinations of developing temperatures, 30, 32 and 34℃, and processing time of 210 seconds. On the other hand, Konica M-200/CM-H was employed as a high speed system. This film was processed in the standard-cycle processing (34℃, 90 seconds). Those systems were compared on contrast, speed, screen-film blur and noise by a characteristic curve, MTF (modulation transfer function) and WS (wiener spectrum). Furthermore, the RMI 165 phantom was used to evaluate visibility of mammographic details of these systems. As a result, in the extended-cycle process at the developing temperatures of 32 or 34°C and processing time of 210 seconds for M-100/CM-H, it was possible to increase the speed as much as the higher speed system, M-200/CM-H. Then the contrast, the MTF and the visibility were also improved as compared to the higher speed system. Furthermore patient dose could be reduced at the developing temperature of 34℃ and processing time of 210 seconds in M-100/CM-H. |
| Keywords | image quality mammography single screen-single emulsion film system high-resolution screen extended-cycle process |
| Publication Title | 岡山大学医療技術短期大学部紀要 |
| Published Date | 1999-02-26 |
| Volume | volume9 |
| Issue | issue2 |
| Start Page | 83 |
| End Page | 90 |
| ISSN | 0917-4494 |
| language | English |
| File Version | publisher |
| NAID | 120002307881 |
| JaLCDOI | 10.18926/15229 |
|---|---|
| Title Alternative | 加温後のtsAF8細胞の細胞周期 |
| FullText URL | 012_2_101_106.pdf |
| Author | Shibuya, Koichi| Kawasaki, Shoji| Kuroda, Masahiro| Asaumi, Jun-ichi| Kato, Hirokazu| Hiraki, Yoshio| |
| Abstract | Thermotolerance in tsAF8 cells develops during incubation at 34℃ after heating at 45℃, while it is suppressed by the following incubation at a non-permissive temperature of 39.7℃ after the same heating. The incubation temperature after heating may affect the cell cycle and consequently thermotolerance. In the present study, a relationship between the thermotolerance and the cell cycle of tsAF8 was investigated. The cell cycle fractions and DNA synthesis were measured by flow cytometry using double staining with propidium iodide and bromodeoxyuridine. When the tsAF8 cells were heated at 45℃ for 20 min, and thereafter incubated at 34℃, bromodeoxyuridine uptake in the S phase cells (DNA synthesis) was recovered to 65.1% 6 h after the heating, and the cells showed gradual accumulation in the G(2)/M phase. When the cells were incubated at 39.7℃ after heating at 45℃ for 20 min, then showed inhibition of thermotolerance development, the DNA synthesis was recovered to 15.1% temporarily 6 h after the heating, but it became 0% after 12 h, and the cells did not remarkably accumulate in any phases of the cell cycle. This inhibition of DNA synthesis at 39.7℃ was considered to be the result of cell survival decreasing by a step-down heating. However, the relationship between the thermotolerance and the cell cycle was not found out in tsAF8 cells, because the cells did not accumulate in any phases of the cell cycle under the inhibitory condition of thermotolerance. |
| Keywords | thermotolerance (温熱耐性) hyperthermia (ハイパーサーミア) tsAF8 cell cycle (細胞周期) |
| Publication Title | 岡山大学医学部保健学科紀要 |
| Published Date | 2002-03-20 |
| Volume | volume12 |
| Issue | issue2 |
| Start Page | 101 |
| End Page | 106 |
| ISSN | 1345-0948 |
| language | English |
| File Version | publisher |
| NAID | 120002307264 |
| JaLCDOI | 10.18926/15224 |
|---|---|
| Title Alternative | Color environment of maternity centers - Visual measurements of consultation and waiting room areas - |
| FullText URL | 013_1_037_045.pdf |
| Author | Ono, Kiyomi| Okuda, Hiroyuki| Mitsuoka, Mictiko| |
| Abstract | これまで助産所管理に関する事柄において色彩環境についてあまり触れられてこなかったが,色彩環境はよい環境を作りだすことができる要素である｡そこで､M助産院の診察室および玄関兼待合室の色彩環境の視感測定を実施した｡M事例でわかったことは,ソファカバーや観葉植物･造花などの有効な活用を図っていたが,人形やスリッパなどの小物は目立つ色彩であった｡また,大きなポスターは周囲の色彩環境を左右していた｡以上のことから,今後,よい色彩環境にするために留意すべき点は以下の7項目である｡ 1)観葉植物の有意義な活用をすること｡ 2)カーペットやソファーカバーなどで色彩変化を楽しめるが､その素材にも留意すること｡ 3)色彩の散乱を防止し,空間内の色彩秩序を保つこと｡ 4)子どもなどを対象にした物の場合には,対象者の視線にあわせた色彩計画をすること｡ 5)癒しの環境作りに造花は手軽に利用できる｡ 6)大きなポスターを貼る時には､その色彩の影響を考慮し添付場所を選択すること｡ 7)診療場所の色彩は色相より彩度には留意し,｢落ち着き｣｢おだやかさ｣｢ほっとする温かみ｣などを得られるような工夫をすること｡ |
| Keywords | 助産所 (maternity center) 色彩 (color) アメニティ (amenity) |
| Publication Title | 岡山大学医学部保健学科紀要 |
| Published Date | 2002-12-25 |
| Volume | volume13 |
| Issue | issue1 |
| Start Page | 37 |
| End Page | 45 |
| ISSN | 1345-0948 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002307475 |
| Author | Wake, Hidenori| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Kawano, Seiji| Okada, Hiroyuki| Kawahara, Yoshiro| Inoue, Masafumi| Yamamoto, Kazuhide| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Inoue, Masafumi| Okada, Hiroyuki| Kawahara, Yoshiro| Kawano, Seiji| Yamamoto, Kazuhide| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Sendo, Toshiaki| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Ito, Hiroshi| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Nomiya, Rie| Okano, Mitsuhiro| Fujiwara, Tazuko| Nishizaki, Kazunori| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| Author | Kashiwakura, Yuji| |
|---|---|
| Published Date | 2009-08-03 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue2 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/fest/15044 |
|---|---|
| FullText URL | 014_017_022.pdf |
| Author | Akudago John Apambilla| Nishigaki, Makoto| Chegbeleh Larry Pax| Komatsu, Mitsuru| Alim Md. Abdul| |
| Abstract | Soil-groundwater salinity issues have assumed a worldwide dimension. It is believed that when groundwater level is less than 2 m there is the possibility of salinity transfer between the soil and groundwater due to factors such as capillary forces. One-dimensional column tests were conducted in the laboratory to find a suitable capillary cut design. The capillary cut material comprised a 20 cm thick 2–4.7 mm and a combination of 2–4.7 mm and 9.5–19 mm gravel material. In all, four different designs were tested by compacting Oji sand in the various columns. Groundwater level of 0.75 m from the top was maintained while salt solution of 10% concentration was allowed to flow under capillary forces through the columns. The water content in the columns were monitored using frequency domain reflectrometry-vector analyzer (FDR-V) after which soil samples from 10 m interval in each column was taken for electrical conductivity measurements. The results showed that 5 cm thick, 2–4.7 mm gravel sandwiching coarser material (e.g. 5 cm thick 9.5–19 mm or 10 cm thick 9.5–19 mm gravel material) proved to be very useful design to cut capillarity. |
| Keywords | soil-groundwater salinity capillary cut filter media design |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2009-03-16 |
| Volume | volume14 |
| Issue | issue1 |
| Start Page | 17 |
| End Page | 22 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002308001 |
| JaLCDOI | 10.18926/15041 |
|---|---|
| Title Alternative | Alcohol-induced pancreatitis |
| FullText URL | 062_052_070.pdf |
| Author | Harada, Hideo| Tanaka, Juntaro| Ochi, Koji| Matsumoto, Shuji| Seno, Toshinobu| lzushi, Michihiro| Tanizaki, Yoshiro| |
| Abstract | 膵炎のうちもっとも頻度が高いアルコール性膵炎（AIP）の疫学，臨床像および発生機序に関する従来の知見を総括した。AIPの大多数は慢性膵炎である。通常は長期にわたる多量の飲酒を背景に発症するが，遺伝的素因および食事因子も重要な役割を演じる。発症初期には血中膵酵素の上昇をともなう腹痛が病像を支配するが，進展すると膵外分泌不全による消化吸収障害と膵内分泌不全による糖尿病が病像を支配するようになる。アルコール性慢性膵炎は非アルコール性慢性膵炎にくらべて確診時にすでに進展した症例が多く，合併症が多く，進行が早く，予後が悪い。死亡の主たる原因は癌の併発と糖尿病の合併症で，膵炎の急性増悪発作がこれにつぐ。併発する癌のなかでは膵癌よりもむしろ上部気道および上部消化管の癌が多い。発生機序としてはDuctal－Plug説とToxic－Metabolic説が有力であるが，最近は細 胞内膵酵素活性化説とFree Radical説も注目をあびている。 |
| Keywords | アルコール性膵炎 (Alcohol－induced pancreatitis) 慢性膵炎 急性膵炎 |
| Publication Title | 環境病態研報告 |
| Published Date | 1991-08 |
| Volume | volume62 |
| Start Page | 52 |
| End Page | 70 |
| ISSN | 0913-3771 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002307918 |
| JaLCDOI | 10.18926/bgeou/15037 |
|---|---|
| Title Alternative | Michael G. Moore's Theory of DistanceEducation - Toward the Refinement of Transactional Distance Theory - |
| FullText URL | 140_133_141.pdf |
| Author | Kumagai, Shinnosuke| |
| Abstract | 本論文は,ムーア(Moore,M.G.)の遠隔教育論を考察し,その特質をうきぼりにするとともに,彼の理論の意義と課題について明らかにすることを研究課題としている｡その際,彼の論をわが国の代表的な遠隔高等教育機関である放送大学にあてはめ,分析することを通しても研究課題に迫ってみた｡その結果,ムーアは遠隔教育における教員と学習者とのへだたり(distanceを,"対話","構成","学習者の自律性"の3つを重要な構成要素とした,心理的なへだたりである,"トランザクショナル･ディスタンス"と捉えることによって,遠隔教育の教育学的理論を構築していったことがわかった｡さらに,研究を通して,遠隔教育の理論枠組みとしてのトランザクショナル･ディスタンスの有効性が確認された｡その他,課題として,ムーアの遠隔教育論が抱えるジレンマや,トランザクショナル･ディスタンスを具体的に測定するための明確な測定基準が示されていないことなどを指摘した｡ |
| Keywords | M. G. Moore distance education Transactional Distance Theory adult education |
| Publication Title | 岡山大学大学院教育学研究科研究集録 |
| Published Date | 2009-02-25 |
| Volume | volume140 |
| Start Page | 133 |
| End Page | 141 |
| ISSN | 1883-2423 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002307773 |
| JaLCDOI | 10.18926/14978 |
|---|---|
| Title Alternative | Effect of spa therapy on peak expiratory flow in patients with bronchial asthma |
| FullText URL | 068_028_033.pdf |
| Author | Mifune, Takashi| Yamamoto, Kazuhiko| Iwagaki, Naofumi| Okamoto, Makoto| Tsugeno, Hirofumi| Ashida, Kozo| Mitsunobu, Fumihiro| Hosaki, Yasuhiro| Tanizaki, Yoshiro| Tada, Shinya| Harada, Mine| |
| Abstract | 気管支喘息に対する温泉療法の効果をピークフローメーターを用いて継時的(第1週,第5過,第9週)に検討した｡1.軽症･中等症では,第5週で有意にピークフロー (PEF)値は上昇した.重症気管支喘息例では第9週に有意な改善を認めた｡2.20%以上のPEF値の改善を認めた症例の割合は第5週では,軽症･中等症･重症群で40～50%であったが,第9週では軽症群で80%,重症群で54.5%に増加していた｡中等症群では第5週と同等であった｡3.第1週のPEFが200(L/m)以下の症例では第5週,第9過とPEFの有意な改善を示したが,200 |
| Keywords | bronchial asthma spa therapy peak expiratory flow (PEF) |
| Publication Title | 岡大三朝分院研究報告 |
| Published Date | 1997-12 |
| Volume | volume68 |
| Start Page | 28 |
| End Page | 33 |
| ISSN | 0918-7839 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002308119 |
| JaLCDOI | 10.18926/OER/14924 |
|---|---|
| Title Alternative | An Introductory Study of Competitive Economics |
| FullText URL | 40_4_019_032.pdf |
| Author | Takemura, Shosuke| |
| Abstract | Many economists have not disputed aggressively ‘competition’ itself. However a few experts have had their own visions of ‘competition and rivalry’. We can understand it best when we catch the seller’s completion and rivalry or firm’s ones as the Hayekian economic process. I explain one continuous and straight numerical value line stretching from the left hand end pole to the right hand end pole. People will have adopted the flexible type as the best in the competitive capitalism the seller had kept in mind. In the ‘process of competition and rivalry’allocated in reverse order there are four requirements and five nodes. Though the firm has larger or smaller power of pricing formation, his budget constraint is apt to be relatively soft or to be relatively hard. The cost−plus principle prevails as a universal experienced rule. Does our process of competition and rivalry converge to the type of the flexible price formation again? In the dynamic process of competition and rivalry the combined values, namely, c, g, m and s give vital effects to the firm’s technical innovation and his efficiency sooner or later. The government’s public policies including deregulation can control the producer’s surplus especially in that process observing the firm’s values. We must think over the visible effects of competition and rivalry before we reap them. |
| Publication Title | 岡山大学経済学会雑誌 |
| Published Date | 2009-03-10 |
| Volume | volume40 |
| Issue | issue4 |
| Start Page | 19 |
| End Page | 32 |
| ISSN | 0386-3069 |
| Related Url | http://www.e.okayama-u.ac.jp/~shiryou/gakkaishi.htm |
| language | Japanese |
| Copyright Holders | 岡山大学経済学会 |
| File Version | publisher |
| NAID | 120002308157 |
| JaLCDOI | 10.18926/14908 |
|---|---|
| Title Alternative | 寒冷負荷の末梢循環に及ぼす影響 |
| FullText URL | 071_042_049.pdf |
| Author | Hosaki, Yasuhiro| Mitsunobu, Fumihiro| Mifune, Takashi| Ashida, Kozo| Tsugeno, Hirofumi| Okamoto, Makoto| Takata, Shingo| Yokoi, Tadashi| Tanizaki, Yoshiro| Ochi, Koji| Tsuji, Takao| |
| Abstract | The purpose of this study is the effect of partial cold-loading on whole body peripheral circulation. The body surface peripheral circulation in 24 cases (25 years old to 86 years old, the average was 64.3 years) who were suffering coldness, numbness or pain in their feet was examined using Laser-Doppler blood flowmetry. The peripheral circulation at the base of the 2nd toe of the right foot was estimated after the foot was submerged and cooled for 5 min in a water bath at 20°C (i. e. cold-loading). At the same time, the distant body surface peripheral circulation was estimated at the base of the 2nd finger of the right hand. Simultaneous observations were made of blood flow, blood mass and blood velocity. The peripheral blood flow of the upper limbs at a room temperature of 20°C (pre-loading) was 5.00 ml/min 100 9 tissue on average. The average blood rnass was 287 and the average blood velocity was 0.516. On the other hand, the average peripheral blood flow of the lower limbs was 2.23, the average blood mass was 149 and the average blood velocity was 0.574. This result shows that the blood flow and blood mass of the upper limbs were more than in the lower limbs. The average blood flow at the upper limbs decreased to 3.69 from 5.00 (or at 26.2% ) when the lower limbs were submerged and cooled for 5 min in a water bath at 20°C (i. e. cold-loading). On the other hand, blood flow of the lower limb was 1.51 m l under a condition of cold-loading, and decreased 32.3% from 2.23. Blood mass of the upper limb was 241 on average and decreased 16.0% from 287. Blood mass of the lower limb was 113 on average and decreased 24.2% from 149. There was no difference between blood velocity of the upper limb under the conditions of room temperature at 20°C (0.516) and cold-loading (0.501). However, blood velocity of the lower limb increased to 0.642 from 0.574. After the end of cold loading, there was some tendency for blood flow, blood rnass and blood velocity to return to the amount at pre-loading. Twenty minutes after the end of cold-loading, blood flow increased to 5.74 (14.8% ) compared with pre-loading (5.00). However, blood flow of the lower limb remained at only 83.9% (1.87) of the amount at pre-loading (2.23). These results show that partial cold-loading of the lower limb had a quantitative effect on the distant peripheral circulation. The speculated mechanism of this phenomenon is that it to protects against loosing body heat from the body surface under the conditions of local cold-loading. Our body has defense mechanisms to decrease whole body peripheral circulation to protect against loosing body heat. |
| Keywords | Laser-Doppler blood flowmetry (レーザードプラー血流計) cold loading (冷水負荷) peripheral circulation (末梢循環) blood flow (血流量) blood velocity (血流速度) |
| Publication Title | 岡大三朝分院研究報告 |
| Published Date | 2001-02-01 |
| Volume | volume71 |
| Start Page | 42 |
| End Page | 49 |
| ISSN | 0918-7839 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002308072 |
| JaLCDOI | 10.18926/14905 |
|---|---|
| Title Alternative | 胸部高分解能CT（HRCT）による肺野low attenuation area（LAA）の定量的評価 ―気管支喘息および肺気腫症例の比較検討― |
| FullText URL | 071_019_028.pdf |
| Author | Mitsunobu, Fumihiro| Mifune, Takashi| Ashida, Kozo| Hosaki, Yasuhiro| Tsugeno, Hirofumi| Okamoto, Makoto| Harada, Seishi| Nakai, Mutsuo| Tanizaki, Yoshiro| |
| Abstract | Background: Assessment of low attenuation areas and lung densitometry on high resolution computed tomography (HRCT) have been reported in studies of patients with chronic obstructive pulmonary disease. Objective : The purpose of this study was to examine if HRCT could separate asthmatic patients from normal control subjects and patients with emphysema. Methods : Subjects were divided into three groups : 24 patients with bronchial asthma, 23 patients with pulmonary emphysema and 15 normal controls. HRCT scans of the lung were performed at three different levels at both end inspiration and expiration in all patients and control subjects. Results : The mean CT number of three slices was significantly lower in asthmatic subjects compared with normal individuals at both end inspiration (p < 0.05) and expiration (p < 0.01). The relative area of the lung with an attenuation value lower than -950 HU (% LAA) for three slices was significantly higher in asthmatic subjects than in normal individuals at end inspiration (p < 0.05), but there was no significant difference at end expiration. The mean CT number and % LAA obtained from studies that were performed at three cm above the top of the diaphragm provided the best separation among three anatomic levels. In comparison between asthmatic and emphysema patients, both parameters were significantly different in asthmatic subjects than in those with emphysema at both end inspiration and expiration on each scan and in the total scans (p < 0.001). Conclusions : HRCT is a useful method to separate asthmatic subjects from patients with emphysema and normal subjects. |
| Keywords | HRCT asthma emphysema |
| Publication Title | 岡大三朝分院研究報告 |
| Published Date | 2001-02-01 |
| Volume | volume71 |
| Start Page | 19 |
| End Page | 28 |
| ISSN | 0918-7839 |
| language | English |
| File Version | publisher |
| NAID | 120002308115 |
| Author | Hiramatsu, Yuji| |
|---|---|
| Published Date | 2009-04-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue1 |
| Content Type | Journal Article |
| Author | Kobayashi, Yoshiyuki| Nakamura, Shinichiro| Ohnishi, Hideki| Toshimori, Junichi| Kuwaki, Kenji| Hagihara, Hiroaki| Miyake, Yasuhiro| Shiraha, Hidenori| Nouso, Kazuhiro| Yagi, Takahito| Tanaka, Noriaki| Yamamoto, Kazuhide| |
|---|---|
| Published Date | 2009-04-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue1 |
| Content Type | Journal Article |
| Author | Takagi, Shin| Mizukawa, Nobuyoshi| Fukunaga, Joji| Ishida, Nobuhisa| Maruo, Yukinori| Kannyama, Manabu| Kimata, Yoshihiro| Koushima, Isao| |
|---|---|
| Published Date | 2009-04-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume121 |
| Issue | issue1 |
| Content Type | Journal Article |
