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김선일,정순종,최종술 대한금속재료학회(대한금속학회) 1990 대한금속·재료학회지 Vol.28 No.5
Shape memory effect was observed in an austenitic stainless steel(AISI 304 type), after bending at-196℃ and heating to 340℃. Shape recovery angle was increased with increasing initial bending angle, showing a peak at around 130°, and then decreased with further bending angle. However, the shape recovery ratio was smoothly decreased with increasing the initial bending angle. The shape memory effect of this alloy was due to transformation of austenite to epsiron martensite during deformation and reverse-transformation of the martensite to the austenite on heating above A_f temperature.
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정채임,임용,김선일,김혜진 사단법인 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.1
The purpose of this study was to investigate the changes of oral environment through dental hygiene intervention in the management of dental hygiene for general adults, and 26 subjects who received the dental hygiene management process from September to December 2017 were selected as the final study subjects. As an intervention method, 'oral toothbrushing method and periodontal cleansing' were carried out in the process of evaluating the oral environment of the subject by evaluating the dental hygiene - judgment - planning - performing – evaluation. The general characteristics of the subjects were 73.1% for males and 80.8% for females under 29 years of age, and 73.1% were single males. In oral health characteristics, oral health practice scores showed higher oral health practice scores. The O'leary index of the subjects was significantly increased after gynecological intervention compared with before gynecological intervention. Age and marital status were statistically significant after the control, and in the oral health behavior, both sex, age, and marital status were statistically significant. There was a negative correlation between oral health practice and oral health concern in terms of oral health concern, subjective gum health status, oral health knowledge acquisition path, periodic removal of calculus, oral health knowledge, and oral health practice. 본 연구는 일반 성인을 대상으로 구강관리를 위한 치위생관리과정에서 치위생중재를 통한 구강환경 변화에 대해 알아보고자 2017년 9월부터 12월까지 치위생관리과정을 수혜한 26명을 최종 연구 대상자로 하였으며 치위생중재법으로는‘개별 맞춤형 칫솔질법과 치주세정술’로 대상자의 구강환경상태를 치위생사정-판단-계획-수행-평가의 과정을 수행하면서 진행하였다. 대상자의 일반적 특성은 성별은 남자가 73.1%, 연령은 29세 이하가 80.8%였고 미혼이 73.1%로 가장 많았다. 구강보건 특성에서 구강보건교육 경험이 있는 경우 구강건강실천 점수가 높게 나타났다. 대상자의 O’leary Index 변화는 성별에서 남자가 치위생중재 전보다 후가 유의하게 점수가 증가하였다. 연령과 결혼유무 모두 관리 전 보다 후가 통계적으로 유의하였으며 구강건강행동에서는 성별, 연령, 결혼 유무 모두에서 통계적으로 유의하였다. 구강건강관심도, 주관적인 잇몸건강상태, 구강건강지식습득경로, 정기적인치석제거, 구강보건지식, 구강건강실천과의 관련성에서 구강건강실천과 구강건강관심도에서 음의 상관관계를 나타내었다.
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구휘모,정승일,권동덕,김명하,정재흥,한미아,이승환,정인갑,김선일,황의창 대한비뇨기종양학회 2024 대한비뇨기종양학회지 Vol.22 No.1
Purpose: The aim of this study was to assess the effects of tyrosine kinase inhibitors (TKIs) following metastasectomy in patients with metastatic renal cell carcinoma (mRCC). Materials and Methods: A systematic search of multiple electronic databases was conducted. The inclusion criteria encompassed randomized clinical trials evaluating the use of TKIs after metastasectomy in mRCC patients. Study outcomes were relapse-free survival (RFS)/disease-free survival (DFS), overall survival (OS), and adverse events of TKIs. Results: Two studies with 197 randomized participants that compared TKIs following metastasectomy versus metastasectomy alone were identified. According to these studies, TKIs following metastasectomy may result in little to no difference in RFS/DFS (hazard ratio [HR], 1.01; 95% confidence interval [CI], 0.65–1.57; I 2 =29%; low-certainty evidence). TKIs after metastasectomy may slightly increase OS, but the CI crossed the line of no effect (HR, 0.80; 95% CI, 0.06–9.87; I2 =86%; low-certainty evidence). TKIs after metastasectomy likely resulted in a large increase in adverse events (risk ratio, 2.76; 95% CI: 1.65–4.62; I2 =not applicable; moderatecertainty evidence). Conclusions: TKIs following metastasectomy did not improve RFS/DFS, but slightly improved OS. It is likely that TKIs following metastasectomy increase adverse events compared to surgery only. The certainty of evidence ranged from moderate (signaling confidence that the reported effect size is likely close to the true effect) to low (indicating that the true effect may be substantially different from the effect estimate). The findings of this study should help to inform future guidelines and clinical decision-making at the point of care.
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구자윤,구휘모,유성현,황의창,한미아,정재흥,이현주,김명하,곽철,김선일 대한비뇨기종양학회 2023 대한비뇨기종양학회지 Vol.21 No.2
Purpose: There is a lack of guidelines for using angioembolization to manage renal cell carcinoma (RCC) patients with intractable symptoms. Therefore, the Korean Urologic Oncology Society (KUOS) developed a set of recommendations for angioembolization for RCC patients with intractable symptoms who are unfit for surgery. Materials and Methods: A rigorous systematic review was performed and GRADE (Grading of Recommendations, Assessment, Development, and Evaluation) methodology was used to rate the certainty of the evidence for the patient outcomes and to develop the evidence into recommendations. The steering group, guidelines development group, systematic review team, and external review group consisted of KUOS members involved in the guideline development process. Results: The guidelines address the benefits, harms, patients’ values and preferences, costs, and resources related to angioembolization by using a single clinical question: Does angioembolization improve the quality of life for RCC patients with intractable symptoms who are unfit for surgery? Conclusions: The guideline development panel suggests angioembolization for RCC patients with intractable symptoms compared with supportive therapies, including systemic treatment (very low certainty of evidence, weak recommendation).
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