JaLCDOI 10.18926/bgeou/52429
タイトル(別表記) Proton Magnetic Resonance Spectroscopy in Patients with Migration Disorders
フルテキストURL 110_0029_0034.pdf
著者 眞田 敏| 浅野 孝| 岡 鍈次| 河原 道子| 栄 勝美| 平木 祥夫| 大田原 俊輔|
抄録 Proton Magnetic Resonance Spectroscopy (1H-MRS) can be used to detect cerebral metabolites including N-acetylaspartate (NAA),creatine (Cr) and choline (Ch). Hence,clinical applications of this method for neuropediatric diseases can be expected. However,regarding neuronal migration disorders,there have been only a few reported studies. We therefore examined the lH-MRS in six patients with migration disorders,ages ranged from 8months to 28years 10months with a mean of 10years 10months. Investigation was performed using Magnetom H15 (Siemens) with a repetition time of 1500 msec and an echo time of 270msec. The ratio of NAA/Cr,Ch/Cr were examined. The volume of interest with the size of 2 × 2 × 2 ~ 3 × 3 × 5cm3 was chosen in the area including lesions,and a contralateral area without lesions was also investigated. Results were as follows. 1) The ratio of NAA/Cr was low in the area with lesions in all 6cases; 1.41,1.95,2.27 and 1.71 in cases with heterotopic gray matter,0.99 in one case with polymicrogyria,an d 1.30 in one case with hemimegalencephaly,contrasted with a contralataral area without lesions: 1.89, 2.89,2.87,2.55,3.26,2.03,respectively. 2) The ratio of Ch/Cr showed no consistent difference between the area including lesions and contralataral area without lesions. Our findings of a decreased NAA/Cr ratio can be inferred to reflect the decreased numbers of neuronal cell population,or reduced metabolism in the lesions.
キーワード MR spectroscopy migration disorder heterotopic gray matter polymicrogyria hemimegalencephaly
出版物タイトル 岡山大学教育学部研究集録
発行日 1999
110巻
1号
開始ページ 29
終了ページ 34
ISSN 0471-4008
言語 Japanese
論文のバージョン publisher
NAID 120005425646
JaLCDOI 10.18926/bgeou/10346
タイトル(別表記) Teaching paraphrase as a communication strategy: issues and a proposal
フルテキストURL 110_0001_0012.pdf
著者 髙塚 成信|
抄録 This paper reviews the literature on practical and empirical approaches to teaching paraphrase as a co㎜unication strategy and finds that the notion of paraphrase in the studies has been very limited. It then attempts to investigate what it means to paraphrase by analyzing paraphrastic expressions used in a monolingual dictionary and a pedagogical grammar book. This analysis is hoped to yield a list of some techniques or patterns of paraphrase, both at and beyond the lexical level, which second language learners may profitably exploit to avoid and solve communication problems they encounter in speech production. The paper makes a pedagogical proposal that paraphrase exercises should be integrated into English lessons, on a regular basis, in which learners are encouraged to paraphrase every single sentence in their textbook by using some of the paraphrastic techniques identified. The plausibility of this proposal has partly been tested by an attempt to paraphrase sentences in some textbook materials.
キーワード paraphrase communication strategy strategy training
出版物タイトル 岡山大学教育学部研究集録
発行日 1999
110巻
1号
開始ページ 1
終了ページ 12
ISSN 0471-4008
言語 Japanese
論文のバージョン publisher
NAID 110000129396