25 research outputs found
New synthetic routes to optically active α-quaternary α-aryl amino acid derivatives via the diastereoselective Stevens and Sommelet–Hauser rearrangements
The Stevens rearrangement of N-allylic α-aryl amino acid-derived ammonium salts and the Sommelet–Hauser rearrangement of N-benzylic α-alkyl amino acid-derived ammonium salts are shown to proceed with remarkably high levels of diastereoselectivity. The methods presented in this work provide new routes to optically active α-quaternary α-aryl amino acid derivatives.journal articl
From “Collection Royale” to “Collection Publique” : The Formation of the Louvre
departmental bulletin pape
Deposition of Aluminium on the Carbon Fiber with the Manufactured CVD Apparatus
publisherIn order to fabricate well wetting and little high temperature brittleness aluminium-carbon fiber complex, we have made the CVD apparatus which does the work of covering PAN base carbon fiber with tri-ethyl-aluminium. Thickness of the deposited film increase with increace of both temperature and time, and is 1.5μm at 673K for four hours. By means of our manufactured CVD apparatus, observed deposition rate 0.35μm/hr at 673K.departmental bulletin pape
Categorical Perception and Reading Skill: A Survey of Japanese Second Graders
Background: The relationship between reading ability and categorical judgment of speech sounds in children whose native language is Japanese is unclear. The purpose of this study is to elucidate the impact of categorical perception on the development of reading ability in children whose native language is Japanese.
Methods: First, forty second-graders (F18, M22; 7y4m−8y4m) attending a public elementary school were tested for reading time and reading errors using the monomoraic syllable reading test, the word and non-word reading tests, and the single sentence reading test. Reading time scores and reading error scores which lay more than 1.5 times the interquartile range (IQR) higher than the third quartile were considered outliers. Next, 30 out of these 40 children were tested using the categorical perception task. A thirteen-step stimulus continuum from /ka/ to /ga/, made by changing voice onset time, was presented to the subjects with the steps in random order, and the subjects made judgments as to whether each stimulus sounded more like /ka/ or /ga/.
Results: Reading time as assessed through all 4 tasks and reading errors as assessed through the non-word reading test and the single sentence reading test correlated weakly with the Categorical Perception Index (CPI), which indicated the stability of categorical judgment. In addition, the number of scores which were outliers also showed a weak correlation with CPI.
Conclusion: These results suggest that categorical perception ability affects the development of reading ability in children whose native language is Japanese.departmental bulletin pape
A case of mucoepidermoid carcinoma arising in mature cystic teratoma
卵巣粘表皮癌は卵巣悪性腫瘍の中で極めてまれな組織型に分類される。今回、我々は成熟嚢胞性奇形種より発生した卵巣粘表皮癌の症例を経験したので報告する。症例は、69歳、女性、両側の成熟嚢胞性奇形腫を認めたが、SCC高値とCT、MRI にて左側の腫瘍内に造影される充実性部分を認めたこと、小腸に浸潤を疑う所見を認めたこと、から悪性転化を疑い、手術を施行した。開腹時、両側卵巣腫瘍を認め、左卵巣腫瘍はS状結腸と強固に癒着していた。卵巣腫瘍充実性部分の迅速病理にて低分化癌と診断し、単純子宮全摘出術、両側付属器摘出術、S状結腸合併切除、骨盤リンパ節郭清術、大網切除術を施行した。病理組織学的には、左卵巣腫瘍の嚢胞壁肥厚部に皮膚付属器、脂肪織、軟骨組織、リンパ球集簇、卵巣間質を認め、充実成分に低分化な浸潤性扁平上皮癌を認めた。充実成分には、粘表皮癌に特徴的な、豊富な胞体粘液(PASおよびAlcian blue 染色陽性)を有する異型細胞が胞巣状~不完全な腺管状を呈する領域があり、成熟嚢胞性奇形腫より発生した卵巣粘表皮癌IIb期(pT2bN0M0)と診断した。術後補助化学療法としてDC(ドセタキセル、カルボプラチン)療法を施行し、術後1年8ヶ月現在、再発を認めない。journal articl
明治初期(学制期)岐阜県における「義校」について(III特殊研究)
1966-03-25国立情報学研究所で電子化したコンテンツを使用している。departmental bulletin pape
