반복 소성이 지르코니아 전부도재관의 색조에 미치는 영향

장정은,김무현,윤미정,정창모,전영찬,Jang, Jung-Eun,Kim, Mu-Hyon,Yun, Mi-Jung,Jeong, Chang-Mo,Jeon, Young-Chan 대한치과보철학회 2011 대한치과보철학회지 Vol.49 No.1

연구 목적: 각각 다른 방법으로 색조를 부여한 세 가지 지르코니아 전부도재관에서 반복소성이 전부도재관의 색조에 미치는 영향을 비교, 관찰하였다. 연구 재료 및 방법: 지르코니아 코어를 세가지 방법으로 착색(KW군: Masking liner를 사용하여 하부 코어색 차단, KI군: 지르코니아 코어를 금속 산화물 용액에 침전시켜 착색, NM군: 지르코니아 코어를 고온에서 소결하기 전에 금속산화물과 혼합하여 착색)하여 원반형 시편을 제작하였다. 지르코니아 코어 상방에 A3 색조의 상아질 도재를 소성하고 3, 5, 7회 반복소성 후 $L^*a^*b^*$ 값을 측정하여 비교하고 다른 두 가지 색의 3차원 공간에서의 거리를 나타내는 색차방정식을 이용하여 분석하였다. 측정된 결과는 반복측정 (repeated-measures ANOVA) 분석법과 Tukey 다중범위 검증법을 사용하여 소성횟수에 따른 색조변화를 유의수준 5%에서 검정하였다. 결과: 1. 모든 실험군에서 반복소성에 따른 $L^*a^*b^*$값의 변화가 관찰되었다 (P< .001). 2. 반복소성으로 $L^*$값과 $a^*$값 (KI군제외)은 감소하고 $b^*$값은 증가하는 경향을 보였다. 3. ${\Delta}E$값이 1이상 나타난 반복소성횟수는 KW군과 KI군은 3회 그리고NM군은 7회였다. 4. 7회 반복소성 후 ${\Delta}E$값은 KI군 (${\Delta}E$ = 2.26), KW군 (${\Delta}E$ = 1.47) 그리고 NM군 (${\Delta}E$ = 1.08) 순으로 높게 나타났다 (P< .001). 결론: 반복소성이 지르코니아 코어 색조를 부여방법에 따라 전부도재관의 색조에 미치는 영향을 끼쳤다. Purpose: The aim of this study was to evaluate the effect of repeated firings on the color of zirconia restoration with different shading method. Materials and methods: Three different types of zirconia frameworks (adding metallic pigments to the initial zirconia powder before sintering (Group NM), dipping the milled frameworks in dissolved coloring agents (Group KI), or application of liner material to the sintered white frameworks (Group KW) were used to support A3 shade dentin porcelain. Repeated firings (3, 5, or 7) were performed, color differences among ceramic specimens were measured using a colorimeter. Repeated measurements analysis of variance (ANOVA) was used to analyze the data for significant difference. The Tukey Honestly Significant Different (HSD) test was used to perform multiple comparisons (${\alpha}$ = .05). Results: 1. $L^*a^*b^*$ values of the ceramic systems were affected by the number of firings (1, 3, 5 or 7 firings) (P < .001) and shading methods (P < .001). 2. As the number of firings increased, the $L^*$ (for all groups) and $a^*$ value (for KW and NM groups) decreased and the $b^*$ value(for all groups) increased. 3. The mean color differences caused by repeated firings were perceptible (${\Delta}E$ > 1) for group KW and KI fired after 3 times, except for group NM fired after 7 times. 4. In order of decreasing ${\Delta}E$ value fired after 7 times, the values were group KI(${\Delta}E$ = 2.26) > group KW (${\Delta}E$ = 1.47) > group NM (${\Delta}E$ = 1.08) (P < .001). Conclusion: Repeated firings influenced the color of the zirconium-oxide all-ceramic specimens with different shading methods.

이형성결절에서 발행한 소간세포암종

김창욱 ( Chang Wook Kim ),정은선 ( Eun Sun Jung ),최종영 ( Jong Young Choi ),장정원 ( Jeong Won Jang ),배시현 ( Si Hyun Bae ),윤승규 ( Seung Kew Yoon ),이창돈 ( Chang Don Lee ),정규원 ( Kyu Won Chung ),선희식 ( Hee Sik Sun ) 대한간암학회 2004 대한간암학회지 Vol.4 No.-

간세포암에서 담관 침범으로 다량 출혈을 일으킨 혈액담즙증

이경은 ( Kyung Eun Lee ),김창욱 ( Chang Wook Kim ),김민주 ( Min Ju Kim ),박진희 ( Jin Hee Park ),조규민 ( Gu Min Cho ),장정원 ( Jeong Won Jang ),이영석 ( Young Sok Lee ),이창돈 ( Chang Don Lee ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.1

Massive bleeding hemobilia occurs rarely in patients with hepatocellular carcinoma (HCC) without any invasive procedure. Upper gastrointestinal bleeding in patient with cirrhosis and abdominal pain with progressive jaundice in patient with HCC were usually thought as variceal bleeding and HCC progression respectively. We experienced recently massive bleeding hemobilia in patient with HCC who was a 73-year old man and showed sudden abdominal pain, jaundice and hematochezia. He had alcoholic cirrhosis and history of variceal bleeding. One year ago, he was diagnosed as HCC and treated with transarterial chemoembolization periodically. Sudden right upper abdominal pain occurred then subsided with onset of hemotochezia. Computed tomography showed bile duct thrombosis spreading in the intrahepatic and extrahepatic ducts, while an ampulla of vater bleeding was observed during duodenoscopy. Hemobilia could be one of the causes of massive bleeding in patients with cirrhosis and HCC especially when they had sudden abdominal pain and abrupt elevation of bilirubin. (Korean J Gastroenterol 2013;61:46-49)

‘마당을 나온 암탉’ 애니메이션 감상을 통한 대학생의 다문화 인식 경험에 대한 내러티브 탐구

구자경(Ja Gyoung Koo),장은정(Eun Jung Jang),장정은(Jeong Eun Chang) 중앙대학교 문화콘텐츠기술연구원 2017 다문화콘텐츠연구 Vol.0 No.24

본 연구는 ‘마당을 나온 암탉’ 애니메이션을 감상한 대학생의 다문화 인식 경험과 경험의 의미를 이해하기 위한 것이다. 연구참여자인 두 명의 여자대학생들은 ○○대학교에서 2015년 2학기에 “다문화 심리와 상담” 강의를 수강하였고, 8주차에 ‘마당을 나온 암탉’ 애니메이션을 감상하였으며, 종강 후인 2015년 12월부터 2016년 12월까지 연구를 위한 면담에 참여하였다. 연구참여자들의 이야기화된 경험은 Clandinin과 Connelly(2000)가 제안한 내러티브 탐구방법에 의해 분석되었다. 연구참여자들은 애니메이션 속 인물과 현실 속 자기를 비교하며, 동료들과의 소집단 토론을 통해 스스로의 다문화 인식 상태를 성찰하면서 다문화인들에 대한 자신의 무관심, 편견 및 고정관념을 인식하게 되었고, 다름에 대해 이해하고 수용하는 태도의 변화를 보였다. 연구참여자들은 암탉인 잎싹이 청둥오리인 초록을 받아들이고 헌신적으로 키우는 모습에서 모성과 모성에서 확장된 생명존중 및 인류애적 사랑을 경험하였다. 이러한 애니메이션 감상 경험은 연구참여자들에게 한국인 사회에서 다문화인들이 겪는 차별과 편견에 대한 관심을 촉진하였으며 미래의 리더이자 다문화 사회인으로서 자신들의 역할을 생각해보게 하였다. 그리고 연구참여자들이 애니메이션 감상 후 동료들과 소집단 토론을 통하여 애니메이션 속의 다문화 이슈를 더 풍성하게 인식하였으며 동료들과 서로의 다름을 수용하고 인정하는 체험을 할 수 있었다. This study is to understand the multi-cultural experience and awareness and the meaning of that experience and awareness from the students who appreciated the animation, ‘Leafie, a hen into the wild’. The research participants, two female students, took the course of “multi-cultural psychology and counseling” in the second semester of 2015 at the *** University, and they appreciated the animation, ‘Leafie, a hen into the wild’ at the 8th week of the course. After the course, they have participated the research interviews from December of 2015 through December of 2016. The narrative experiences of the research interviewees were analyzed by way of the narrative research methods suggested by Clandinin and Connelly(2000). The students compared themselves to the characters of the animation and reflected their awareness of multi-cultural situations through the discussion with the colleagues during the lectures. And they perceived their apathy and prejudice and the stereotype and then they showed the understanding and acceptance of the ethnic differences. The participators experienced maternity and the respect for life and the philanthropy from the scenes that Leafie, a hen accepted a wild duck, Greenie and fostered it with selfless devotion. This appreciating experience of the animation catalyzed the audience to get interested in the prejudice and discrimination that the immigrants experienced in the Korean society and made them think over their roles of the potential leaders of the future Korean society. The research participants plentifully recognized multicultural issues from viewing the animation, followed by the group discussion and experienced the understanding and acceptance of the differences among the colleagues.

어머니 취업 및 직업만족도와 아동이 지각한 자녀양육태도와의 관계 연구

송정은,윤계훈,윤정현,이정임,장정선,장현숙,최성혜,최영옥 연세대학교 생활과학대학 1988 婦學 Vol.21 No.-

The purpose of this study was to investigate the relationship between child perception of mother's rearing attitude and mother's employment status, and mother's job satisfaction. The subjects were 225 fifth graders and 70 employed mothers and 155 unemployed mothers selected from 2 primary schools located in a low income residential area in Seoul. The instruments used were a questionnaire about mother's child rearing attitude by Kim, Kyung-Hee, et al(1976) and 12 questions selected from Thomson's test of mother's satisfaction on her employment(1980) translated by Park, He-Ryung(1986). Data were analyzed by Chi-square and t-test. The resulting showed no significant statistical differences on the perception of mother rearing attitudes either as a function of mother's employment status or her job satisfaction. It was concluded that the child rearing attitude of low income mothers was not affected by the mother's employment status or job satisfaction.