212 research outputs found

    An Argument for ‘Adjacency Pair’ as a Theoretical Unit of Conversation

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    This paper presents an argument to prove the theoretical status of a minimal unit of conversation called ‘adjacency pair.’ It was rejected as a theoretical unit of conversation by Searle (1992a, 1992b) and was reluctantly consented as a practice by Schegloff (1992) after a debate between them. This paper examines utterance pairs consisting of a disjunctive utterance and its preceding utterances that constitute an intended/unintended oxymoron and demonstrates how causally they are related by specifying the perlocutionary effect of the perlocutionary act concomitantly performed by the speaker of the preceding utterances. This paper presumes that this causal relation partially or totally satisfies Searle (1992b)’s Intentional causation, which satisfies his claim such that a form of pattern is explanatory if and only if it can exemplify a rule or some other form of Intentional [sic] causation.To prove these presumptions, this paper examines English scripts with oxymora and disjunctive utterances which are the translations by the present author from the original Japanese novels that explicitly reflect ordinary Japanese conversation within the framework of regulation theory proposed in Kubo (2003, 2004, 2007, 2012, 2014) that is an extension of current speech act theory

    マックスプラス代数のスケジューリング問題への応用

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    学位の種別: 課程博士審査委員会委員 : (主査)東京大学教授 西成 活裕, 東京大学教授 太田 順, 東京大学教授 時弘 哲治, 東京大学准教授 白石 潤一, 東京大学准教授 柳澤 大地University of Tokyo(東京大学

    Quantitative measurement of airway dimensions using ultra-high resolution computed tomography

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    Background: Quantitative measurement of airway dimensions using computed tomography (CT) is performed in relatively larger airways due to the limited resolution of CT scans. Nevertheless, the small airway is an important pathological lesion in lung diseases such as chronic obstructive pulmonary disease (COPD) and asthma. Ultra-high resolution scanning may resolve the smaller airway, but its accuracy and limitations are unclear. Methods: Phantom tubes were imaged using conventional (512 × 512) and ultra-high resolution (1024 × 1024 and 2048 × 2048) scans. Reconstructions were performed using the forward-projected model-based iterative reconstruction solution (FIRST) algorithm in 512 × 512 and 1024 × 1024 matrix scans and the adaptive iterative dose reduction 3D (AIDR-3D) algorithm for all scans. In seven subjects with COPD, the airway dimensions were measured using the 1024 × 1024 and 512 × 512 matrix scans. Results: Compared to the conventional 512 × 512 scan, variations in the CT values for air were increased in the ultra-high resolution scans, except in the 1024×1024 scan reconstructed through FIRST. The measurement error of the lumen area of the tube with 2-mm diameter and 0.5-mm wall thickness (WT) was minimal in the ultra-high resolution scans, but not in the conventional 512 × 512 scan. In contrast to the conventional scans, the ultra-high resolution scans resolved the phantom tube with ≥ 0.6-mm WT at an error rate of < 11%. In seven subjects with COPD, the WT showed a lower value with the 1024 × 1024 scans versus the 512 × 512 scans. Conclusions: The ultra-high resolution scan may allow more accurate measurement of the bronchioles with smaller dimensions compared with the conventional scan
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