Ethical Education on Information Security Mind for Practical Security Learning

情報セキュリティに関する実践的な教育は、受講者が故意または過失により実際のネットワークやサービスに 対して新たな教育を試みると、トラブルの原因となる可能性がある。このような実践的な授業には、不正アクセス、プライバシー保護、著作権侵害などに関する職業倫理や関連法制度の教育が必要である。筆者らは、実践的な科目のPBL授業で使用するための「セキュリティマインド」教育のための教材パッケージを開発した。パッケージには解説スライドとテストが含まれている。本報告書では、情報セキュリティマインド教育の背景と必要性、教材開発、サンプル、評価結果などを紹介した。 Practical education on information security may cause trouble if any student in the course tries the new education against actual networks or services intentionally or negligently. Education on occupational ethics and relating legal system on unauthorized access, privacy protection, and copyright infringement must accompany such practical classes. The authors developed an education material package for “security mind” education to be used in PBL classes on practice subject. The package contains explanatory slides and tests. This report illustrates the background and need for the education on information security mind, as well as development of education material, samples and result from evaluation

Investigations of thin p-GaN light-emitting diodes with surface plasmon compatible metallization

We investigate device performance of InGaN light-emitting diodes with a 30-nm p-GaN layer. The metallization used to separate the p-contact from plasmonic metals, reveals limitations on current spreading which reduces surface plasmonic enhancement

指尖部切断に対する動脈島状皮弁をもちいた再建術後のPIP関節屈曲拘縮の予見因子の検討

PURPOSE: To identify independent predictors of postoperative proximal interphalangeal (PIP) joint contracture after direct-flow homodigital island flap transfer. METHODS: Forty-four fingertip amputations in 39 patients treated with oblique triangular flaps were evaluated at a minimum of 1 year after surgery. Five variables were examined: patient age, injured finger, mechanism of injury, flap advancement distance, and time required for wound healing. Univariate and multivariate linear regression analyses were performed to identify the extent to which these variables affected the flexion contracture of the PIP joint. RESULTS: The average reduction in the passive extension angle of the PIP joint was 16° at final follow-up. Univariate analysis indicated significant correlations of PIP joint flexion contracture with age, injured finger, and time for wound healing, but no significant correlation with the distance the flap was advanced. Multivariate analysis indicated that the age and duration of wound healing were independent predictors of the flexion contracture of the PIP joint. CONCLUSIONS: Elderly people and cases with delayed wound healing are at risk for postoperative PIP joint contracture after homodigital flap transfer. Intervention with early hand therapy and orthotics may be useful in elderly patients with delayed wound healing.博士（医学）・乙第1377号・平成28年7月8日Copyright © 2015 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved

Oral pathobiont induces systemic inflammation and metabolic changes associated with alteration of gut microbiota.

Periodontitis has been implicated as a risk factor for metabolic disorders such as type 2 diabetes, atherosclerotic vascular diseases, and non-alcoholic fatty liver disease. Although bacteremias from dental plaque and/or elevated circulating inflammatory cytokines emanating from the inflamed gingiva are suspected mechanisms linking periodontitis and these diseases, direct evidence is lacking. We hypothesize that disturbances of the gut microbiota by swallowed bacteria induce a metabolic endotoxemia leading metabolic disorders. To investigate this hypothesis, changes in the gut microbiota, insulin and glucose intolerance, and levels of tissue inflammation were analysed in mice after oral administration of Porphyromonas gingivalis, a representative periodontopathogens. Pyrosequencing revealed that the population belonging to Bacteroidales was significantly elevated in P. gingivalis-administered mice which coincided with increases in insulin resistance and systemic inflammation. In P. gingivalis-administered mice blood endotoxin levels tended to be higher, whereas gene expression of tight junction proteins in the ileum was significantly decreased. These results provide a new paradigm for the interrelationship between periodontitis and systemic diseases