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Distal Femoral Medial Opening Wedge Osteotomy for Post-Traumatic, Distal Femoral Varus Deformity
MyoungSoo Cha,송시영,Koo-Hyun Jung,Young-Jin Seo 대한슬관절학회 2019 대한슬관절학회지 Vol.31 No.1
Restoration of neutral mechanical alignment of the lower limb is an important factor in the treatment of unicompartmental arthrosis. Traditionally, medial opening wedge high tibial osteotomy has been widely performed to correct varus malalignment with unicompartmental arthrosis. However, an ideal indication for the high tibial osteotomy is the knee with metaphyseal tibial varus malalignment. The basic principle of corrective osteotomy is performing an osteotomy at the center of the deformity to prevent abnormal joint line obliquity. If pathologic distal femoral varus deformity is the cause of genu varum, the osteotomy should be performed in the distal femur. Reports of medial opening wedge distal femoral osteotomy (DFO) to correct varus malalignment are rare. We present a case of this very rare and challenging condition in a 47yearold male, which was successfully treated by medial opening wedge DFO.
청소년의 가정생활환경이 의류 상표지향성에 미치는 영향 연구 : 16~24세 여성을 중심으로
서영복,이명희 誠信女子大學校 生活文化硏究所 2009 生活文化硏究 Vol.24 No.1
The purpose of this study is to investigate the effects of the value system and material environment on consumers' brand orientation of clothes, and to understand how brand orientation, value system at home, and the motive for selecting a brand name are interrelated. As research method, questionnaire surveys were conducted on 498 high school and college girls in Seoul. Variables for home environment included status aspiration, materialism and traditionalism. Brand orientation was assessed based on brand involvement and brand loyalty. Variables for brand-selection motive included the place of a store, impulsive buying, and eight clothing attributes. Consumer groups were classified into four groups based on brand orientation, using brand involvement and brand loyalty median values: highly involved and loyal, highly involved and disloyal, less involved and loyal, and uninterested. The highly involved and loyal group showed a high level of status aspiration and traditionalism, belonged to a higher social class and had higher-educated parents. They took brand fame into much consideration when buying clothes. Additionally, this group paid much attention to the quality, fashion trends and comfort of the clothes, had a high level of expenditure on clothing and shopped for clothes mostly at department stores. The uninterested group showed a low level of status aspiration and traditionalism, belonged to the middle social class, and had lower-educated parents. Also, they took less consideration of clothing attributes, spent less money on clothing and did their clothes shopping at traditional markets and wholesale stores. The variables with the most amount of influence on brand involvement were in the order of social class, age, traditionalism and status aspiration (R²=.083). The variables with the most amount of influence on brand loyalty were found to be in the order of social class, age, traditionalism and materialism (R²=.090). Therefore, the most important variables for the clothing brand orientation of young females were social class, age and traditionalism at home.
극단 저체중 신생아에서의 동맥관 개존증 결찰술을 위한 진정맥 마취 경험 2례
최영균,고명진,이상은,조광래,김영환,임세훈,이정한,이근무,정순호,김영재,신치만 仁濟大學校 白病院 2010 仁濟醫學 Vol.31 No.-
Running title: Cases of anesthesia for extremely low birth weight infant. Extremely low birth weight infants (birth weight < 1000 g) are prone to various morbidities such as respiratory distress syndrome, intraventricular hemorrhage, periventricular leukomalacia, patent ductus arteriosus, necrotizing enterocolitis and retinopathy. To accomplish successful anesthetic management, many precautions must be continuously taken during the operation. First, inspired oxygen concentration should be adjusted to avoid oxygen toxicity. Second, body temperature must be maintained adequately. Third, hemodynamic parameters should be kept stable. We report 2 cases of successful anesthetic management for extremely low birth weight infant who underwent ligation of patent ductus arteriosus at the neonatal intensive care unit.
강영구,조명호 한국안전학회 2003 한국안전학회지 Vol.18 No.3
Polymeric positive temperature coefficient(PTC) composites have been prepared by incorporating carbon black(CB) into high density polyethylene(HDPE), polyphenylene sulfide(PPS) and polybutylene terephthalate(PBT) matrices. A PTC effect was observed in the composite, caused by the large thermal expansion due to the consecutive melting of HDPE, PPS and PBT crystallites. This theory is based upon the premise that the PTC phenomenon is due to a critical separation distance between carbon particles in the polymer matrix at the higher temperature. The influence of PTC characteristics of the PPS/CB composite can be explained by DSC result. HDPE, one of prepared composition, exhibit the higher performance PTC behavior that decreaseing of negative temperature coefficient(NTC) effect and improved reproducibility by chemically crosslinking. Also, PBT/CB and PPS/CB composites exhibit the higher PTC peack temperature than HDPE/CB PTC composite, individually 200℃and 230℃. These FTC composite put to good use in a number of safety application, such as self-controlled heater, over-current protectors, auto resettable switch, high temperature proctection sensor, etc.