88 research outputs found

    A Study of Identifying Trends in Projector using F-Term Codes from Japanese Patent Applications

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    It is important for companies to understand technological trends when developing technologies and products. Based on Utterback and Abernathy's theory of the emergence of dominant design, we investigate a method of obtaining technological trends using patent information. In a previous study, we visualised the innovation state and obtained the emergence of dominant designs using FI and theme codes, which are original patent classification codes of Japanese patents, as well as F-terms. However, there has not been sufficient research conducted on how to obtain patent applications and how to select FIs, theme codes, and F-terms, which are the preconditions for the analysis. In this study, we discuss a procedure for obtaining patent applications, selecting FIs, theme codes and F-terms, visualising the innovation state, and predicting the emergence of dominant designs, and report the results

    Two human papillomavirus DNAs molecularly cloned from a patient with epidermodysplasia verruciformis: restriction maps.

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    Two distinct human papillomavirus (HPV) DNAs (MY-1 and MY-2) were molecularly cloned from the benign skin lesions of a patient with epidermodysplasia verruciformis. The restriction map of MY-1 was the same as that of HPV 3a. The map of MY-2 appeared to be different from those of any HPVs reported in the literature. MY-2 did not cross-hybridize with MY-1 or the DNAs of HPV types 1, 2 and 4 under stringent conditions.</p

    高校生における異文化体験と国際的資質の関連 : 海外研修旅行の効果

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    本研究の目的は, 日本の高校生を対象に,国際的資質が海外研修旅行における異文化体験へ与える影響を検討することであった。3か国のうち1か国を選択して海外研修旅行を経験した高校生158人に対し,国際的資質および異文化体験を測定する賀問紙調査を実施した。その結呆,旅行後の国際的資質が有意に高まったが,その効果量は低かった。また異文化に対する認識の肯定的変化は,旅行の結果高まったほか,旅行前の国際的資質に強く影響受けることが明らかとなった。教育効果の検証における個人要因導入の必要性について考察された。The purpose of this study was lo examine the impact of international disposition on cross-cultural experiences in an oversea school trip among Japanese high school students. 158 high school students who participated in one in three foreign countries\u27 trip answered the questionnaire regarding international disposition and cross-cultural experiences. The results showed that scores of international disposition significantly increased but the effect sizes were moderate. Positively changes of the realization toward other countries also increased and were positively influenced by international disposition before the trip. Application of individual factors to the examination of the teaching effectiveness was discussed

    The mode of lymphoblastoid cell death in response to gas phase cigarette smoke is dose-dependent

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    <p>Abstract</p> <p>Background</p> <p>Cigarette smoke (CS) is the main cause in the development of chronic obstructive pulmonary disease (COPD), the pathogenesis of which is related to an extended inflammatory response. In this study, we investigated the effect of low and high doses of gas phase cigarette smoke (GPS) on cultured lymphocyte progenitor cells, using techniques to assess cell viability and to elucidate whether cells die of apoptosis or necrosis upon exposure to different doses of GPS.</p> <p>Methods</p> <p>In our approach we utilised a newly-established system of exposure of cells to GPS that is highly controlled, accurately reproducible and simulates CS dosage and kinetics that take place in the smokers' lung. This system was used to study the mode of cell death upon exposure to GPS in conjunction with a range of techniques widely used for cell death studies such as Annexin V staining, activation of caspase -3, cytoplasmic release of cytochrome C, loss of mitochondrial membrane potential and DNA fragmentation.</p> <p>Results</p> <p>Low doses of GPS induced specific apoptotic indexes in CCRF-CEM cells. Specifically, cytochrome C release and cleaved caspase-3 were detected by immunofluorescence, upon treatment with 1-3 puffs GPS. At 4 h post-exposure, caspase-3 activation was observed in western blot analysis, showing a decreasing pattern as GPS doses increased. Concomitant with this behaviour, a dose-dependent change in Δψ<sub>m </sub>depolarization was monitored by flow cytometry 2 h post-exposure, while at 4 h Δψ<sub>m </sub>collapse was observed at the higher doses, indicative of a shift to a necrotic demise. A reduction in DNA fragmentation events produced by 5 puffs GPS as compared to those provoked by 3 puffs GPS, also pointed towards a necrotic response at the higher dose of GPS.</p> <p>Conclusion</p> <p>Collectively, our results support that at low doses gas phase cigarette smoke induces apoptosis in cultured T-lymphocytes, whereas at high doses GPS leads to necrotic death, by-passing the characteristic stage of caspase-3 activation and, thus, the apoptotic route.</p

    Corrigendum: Use of the index of pulmonary vascular disease for predicting longterm outcome of pulmonary arterial hypertension associated with congenital heart disease

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