検索結果 232 件
| 著者 | 松尾 俊彦| |
|---|---|
| 発行日 | 2006-09-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 118巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 佐野 由文| |
|---|---|
| 発行日 | 2008-01-04 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 119巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/fest/12836 |
|---|---|
| フルテキストURL | 13_111_119.pdf |
| 著者 | Akhtar M.Shahbaz| 沖 陽子| 足立 忠司| |
| 抄録 | To acclimate under orthophosphate (Pi) starved environment, plant species and cultivars display an elegant myriad of Pi-adaptive and rescue responses via reprioritizing internal Pi use and maximizing external Pi acquisition by reprogramming metabolism and restructuring root system architecture.Exploitation of considerable genetic diversity both between and within crop species and harnessing of these genetic variations can lead us to develop smart plants with improved P-acquisition, growth and yield under P-deprivation. To elucidate the effect of P-stress on plant growth, and P-efficiency under Pstarvation, 14 diverse Brassica cultivars were grown hydroponically in a climatically controlled chamber using sufficient (200 and 400 μM) and stress (10 and 20 μM) P-levels using ammonium phosphate (NH4H2PO4) as a P source. Cultivars showed differential growth behaviour in terms of biomass accumulation (shoot and root dry matter partitioning), percent distribution of Pi-concentration ([P]) and P-contents in plant parts (roots and shoots), and P-efficiency ratio (% PER)(relative shoot growth) indicating considerable genetic diversity among the tested Brassica cultivars. PER and the proportional increases in shoot dry matter (SDM) accumulation (SDMmax/SDMmin) in response to the P levels assisted in categorizing the cultivars into efficient and inefficient utilizers of the absorbed P from an ambient environment. Cultivars were classified into efficient responsive (ER), efficient non-responsive (ENR), non-efficient responsive (NER) and non-efficient non-responsive (NENR) by plotting ordination plots between PER and SDMmax/SDMmin under P-stress environment. Differential PER values at stress P levels corresponds to high P levels suggest that P efficiency mechanisms can be different from one cultivar to another within a give plant species and cultivars exhibiting high PER values are better choice to thrive under P-starvation. |
| キーワード | Brassica cultivars biomass and P-distribution P-contents P-efficiency ratio |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 2008-03 |
| 巻 | 13巻 |
| 号 | 1号 |
| 開始ページ | 111 |
| 終了ページ | 119 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002304774 |
| JaLCDOI | 10.18926/OER/12438 |
|---|---|
| タイトル（別表記） | Mechanism of the Polish External Debt Accumulation in 1970's |
| フルテキストURL | 36_4_069_084.pdf |
| 著者 | 田口 雅弘| |
| 抄録 | In this paper, the author clarifies the mechanism of the Polish external debt accumulation in 1970's which had become one of the causes of the system collapse. A basic strategy of 70's economic development was established at the 6th Congress of the Polish United Workers' Party (PZPR) held in 1971. The system reform in full scale started in 1973 based on this strategy. On the other hand, economic growth was at the peak in 1973. It decelerated afterwards, and a lot of economic difficulties were already caused in 1974. And the system reform was frustrated. Though the "economic adjustment" was introduced in 1976, the external debt accumulated rapidly, and the national income produced recorded negative growth in 1979. Finally, the financial crunch and the external debt crisis were generated. A Polish socialist system became dysfunction, and the system collapsed in 1989. The cause to which the external debt accumulates is as follows : (1) soft control of the foreign currency management in the relatively centralized economic system, (2) inefficient production system caused by the price distortion, (3) failure of domestic industry policy, especially agricultural policy. The following reform was necessary to solve these problems : (1) introduction of profit and loss account based on market prices, (2) bankruptcy processing of enterprise which loses solvency of external debt, (3) activation of private farms. However, it is a solution which obviously contradicts the socialistic principles. In such a meaning, the failure of the economic policy and the system design in 1970's could be the begining of the end of the Polish socialist system. |
| 出版物タイトル | 岡山大学経済学会雑誌 |
| 発行日 | 2005-03-10 |
| 巻 | 36巻 |
| 号 | 4号 |
| 開始ページ | 69 |
| 終了ページ | 84 |
| ISSN | 0386-3069 |
| 関連URL | http://www.e.okayama-u.ac.jp/~shiryou/gakkaishi.htm |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002304894 |
| JaLCDOI | 10.18926/bgeou/12273 |
|---|---|
| タイトル（別表記） | The Maintenance and Preservation of Houses in the Traditional Residential Areas (Part2) -The Current Status of the Maintenance and Preservation of Rooftops and Exterior- |
| フルテキストURL | 136_063_071.pdf |
| 著者 | 冨士田 亮子| 土居 亮子| |
| 抄録 | The following facts were revealed after interviewing the previous households on the awareness and current status of the maintenance and preservation of their residential exterior such as rooftops and outer walls. (1)By cleaning the outer walls or gutters, residents were able to become aware of any external deterioration or damage at an early stage. (2)Each household has their own trustworthy roof-repairer or carpenter serving them generation after generation, who will look after their residences and immediately repair any small damages. (3)The project to preserve groups of significant traditional constructions is effective in economically supporting the maintenance of such residences and also arousing the awareness in that respect. (4)Residents have the desire to continue living in such residences for a long period of time, and thus are concerned about its maintenance and preservation. |
| キーワード | 住宅の維持管理 屋根・外壁の損傷 居住者管理 木造戸建住宅 |
| 出版物タイトル | 岡山大学教育学部研究集録 |
| 発行日 | 2007-10-25 |
| 巻 | 136巻 |
| 開始ページ | 63 |
| 終了ページ | 71 |
| ISSN | 0471-4008 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002304782 |
| JaLCDOI | 10.18926/fest/11613 |
|---|---|
| フルテキストURL | 001_055_064.pdf |
| 著者 | 渡辺 雅二| |
| 抄録 | We analyze some mathematical problems that arise in studies of phenomena observed in the cardiac action. We illustrate a method to characterize the response of a nonlinear oscillator to an external forcing, and introduce some numerical results. We also introduce some results of numerical computation in an example of a coupled system of an excitable system and a nonlinear oscillator. |
| キーワード | periodic forcing nonlinear oscillators excitable systems couples systems. |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1996-03 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 55 |
| 終了ページ | 64 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002313699 |
| JaLCDOI | 10.18926/fest/11489 |
|---|---|
| タイトル（別表記） | Considering variable selection criteria in correspondence analysis |
| フルテキストURL | 010_049_056.pdf |
| 著者 | 森 裕一| 杜 暁東| 飯塚 誠也| |
| 抄録 | Ordinary goodness of fit criteria in correspondence analysis are considered as variable selection criteria in case correspondence analysis which is one of multivariate methods without external variables can be applied. The goodness of fit criteria focused here are proportion of cumulative eigenvalues, proportion of cumulative squared-eigenvalues and proportion of cumulative off-diagonal fitness. Each criterion is applied to a couple of real data sets and evaluated with interpretation of the selection process and result (selected subset of variables). Four selection procedures such as backward elimination and forward-backward selection are also performed to compare with each other as well as with all possible selection procedure. These results illustrate that the criteria can be used as selection criteria to select a subset of variables in correspondence analysis and to assess categorical items (questions) in a survey (questionnaire). |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 2005-02-28 |
| 巻 | 10巻 |
| 号 | 1号 |
| 開始ページ | 49 |
| 終了ページ | 56 |
| ISSN | 1341-9099 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002313834 |
| JaLCDOI | 10.18926/fest/11429 |
|---|---|
| タイトル（別表記） | Variable selection besed on global score estimation and its numerical investigation |
| フルテキストURL | 012_029_040.pdf |
| 著者 | 森 裕一| 笛田 薫| 飯塚 誠也| |
| 抄録 | A variable selection method using global score estimation is proposed, which is applicable as a selection criterion in any multivariate method without external variables such as principal component analysis. This method selects a reasonable subset of variables so that the global scores, e.g. principal component scores, which are computed based on the selected variables, approximate the original global scores as well as possible in the context of the least squares. Three computational steps are proposed to estimate the scores according to how to satisfy the restriction that the estimated global scores are mutually uncorrelated. Three different examples are analyzed to demonstrate the performance and usefulness of the proposed method numerically, in which three steps are evaluated and the results obtained using four cost-saving selection procedures are compared. |
| キーワード | principal components least square orthogonalization cost-saving selection |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 2007-03-15 |
| 巻 | 12巻 |
| 号 | 1号 |
| 開始ページ | 29 |
| 終了ページ | 40 |
| ISSN | 1341-9099 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002313992 |
| 著者 | 目黒 俊成| |
|---|---|
| 発行日 | 2001-03-25 |
| 出版物タイトル | |
| 資料タイプ | 学位論文 |
| 著者 | 竹内 幹雄| 星野 敏| 目瀬 守男| |
|---|---|
| 発行日 | 1991 |
| 出版物タイトル | 岡山大学農学部学術報告 |
| 巻 | 78巻 |
| 号 | 1号 |
| 資料タイプ | 紀要論文 |
| 著者 | 岩村 通正| 石川 達芳| |
|---|---|
| 発行日 | 1962 |
| 出版物タイトル | 岡山大学農学部学術報告 |
| 巻 | 19巻 |
| 号 | 1号 |
| 資料タイプ | 紀要論文 |
| 著者 | 岩村 通正| |
|---|---|
| 発行日 | 1961 |
| 出版物タイトル | 岡山大学農学部学術報告 |
| 巻 | 17巻 |
| 号 | 1号 |
| 資料タイプ | 紀要論文 |