식용색소에 의한 CEROMER 수복물의 색안정성

정유진,임주환,조인호,임헌송,Jeong Yu-Jin,Lim Ju-Hwan,Cho In-Ho,Lim Heon-Song 대한치과보철학회 2003 대한치과보철학회지 Vol.41 No.2

Statement of problem : Ceramic and composite resin have been used to fulfill the demand for esthetic prosthesis. However, ceramic is easy to break and wears off the opposite natural teeth. Conventional composite resin also has low abrasive resistance and color stability. Ceramic Optimized Polymer (ceromer) was developed in mid-1990s to overcome the shortfalls of ceramic and composite resin. Ceromer has similar abrasiveness with the natural tooth and has relatively high strength. Color stability affects esthetics and long-term prognosis of the prosthesis. Purpose The purpose of this study was to compare color stability of ceromers(2 types : $Artglass^{(R)}$. $Targis^{(R)}$) with ceramics ($Vintage^{(R)}$-polishing, $Vintage^{(R)}$-glazing). Material and Method : The color difference(${\Delta}E^*$) was measured by spectrophotometer with different immersion time. Twenty disks, 3mm in thickness and 10mm in diameter, were fabricated for each specimen in shade A2(Vita Lumin shade guide), Specimens (5 samples in each group) were immersed in the food colorants (Red no.3. Yellow no.4, Blue no.1, Distilled water) for 24 hours, 48 hours and 72 hours respectively. $L^*,\;a^*$ and $b^*$ value were measured with spectrophotometer (CM 503i : Minolta Co., Japan) and mean ${\Delta}E^*$ value was calculated for statistical analysis Results : The results of this study were obtained as follows. 1. The ${\Delta}E^*$ values of all test samples increased with the time of immersion. 2. The ${\Delta}E^*$ values of all materials increased in order of Distilled Water, Yellow no.4, Blue no.1 and fed no.3. There was significant difference between Red no.3 and the other food colorants(p<0.05). 3. The ${\Delta}E^*$ values increased in order of $Vintage^{(R)}$-glazing, $Vintage^{(R)}$-polishing. $Artglass^{(R)}$ and $Targis^{(R)}$. There was significant difference between $Vintage^{(R)}$-glazing and the other materials (p<0.05). Conclusion : By means of the above results, immersion time was found to be a critical factor for color stability of ceromer. For the long-term color stability of prosthesis it is recommended patients having ceromer prosthesis ($Artglass^{(R)},\;Targis^{(R)}$) to reduce the habitual intake of Red no.3 colorants con taming foods.

통합 의학 치료로 5년 생존 및 완전 관해에 도달한 췌장암 증례 보고 1례

정유진,김지수,박경덕,오유나,정범진,방선휘,Yu-jin Jung,Jisoo Kim,Kyung-Dug Park,Yoona Oh,Beom-Jin Jeong,Sunhwi Bang 대한한방내과학회 2023 大韓韓方內科學會誌 Vol.44 No.3

Objectives: This is a five-year survival and complete response (CR) report on pancreatic cancer treated with western medicine and Korean traditional medicine. Method: A 59-year-old woman diagnosed with pancreatic cancer visited ○○ Korean traditional medicine hospital after neoadjuvant chemotherapy and pylorus-preserving pancreaticoduodenectomy. She was treated with Korean traditional medicine, including acupuncture, abdominal moxibustion, wild ginseng pharmacopuncture, and herbal medicine, which was based on integrated medicine therapy (IMT), from March 2018 to September 2022. The tumor size was measured by scanning with computed tomography (CT), magnetic resonance imaging, and positron-emission tomography/CT. Adverse events were evaluated using laboratory conclusion and National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0. Result: During four years and three months of treatment, IMT maintained safety. The patient finally reached five-year survival without any recurrence or complication (CR) on October 26, 2022. Conclusion: We suggest that an integrative approach including Korean traditional medicine can be a meaningful treatment option for pancreatic cancer. Further studies should be performed to establish the proper treatment protocol of integrative medicine for pancreatic cancer.

실시간 수질모니터링시스템에 대한 제언

정유진,Jeong, Yu-Jin 한국수자원학회 2010 물과 미래(한국수자원학회지) Vol.43 No.4

청소년의 이성교제 여부 변화와 관련 요인

정유진(Yu-Jin Jeong) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.2

본 연구는 우리나라 청소년들의 연령에 따른 이성교제 여부 변화와 이와 관련된 개인적 특성 및 가족과 학교의 특성을 살펴보는 것을 그 목적으로 하였다. 본 연구목적을 달성하기 위해 한국아동청소년 패널 원자료에서 중학교 1학년 코호트 자료 제 3차(2012년)∼제 5차(2014년) 자료의 일부분을 추출하여 사용하였다. 본 연구에 포함된 대상자수는 총 1,961명이었다. 패널로짓분석을 실시한 결과, 연령이 증가함에 따라 청소년들은 이성교제를 할 가능성이 높았다. 또한 남자 청소년이 여자청소년에 비해, 자아존중감이 높은 청소년은 낮은 청소년에 비해 이성교제를 할 확률이 높았다. 그러나 부모의 애정적 양육행동, 이성형제 유무, 가구 소득과 같은 가족 특성은 연구 대상자의 이성교제 참여 확률에 유의한 영향을 미치지 않았다. 이와 달리 학교 특성은 이성교제 확률에 유의한 영향을 미쳤다. 남녀공학에 재학 중인 청소년이 그렇지 않은 청소년 보다 이성교제를 할 확률이 높았다. 또한 학업과 학교 규칙 적응 정도는 이성교제 확률을 감소시켰으며, 이와 대조적으로 교우와 교사와의 긍정적인 관계는 그 확률을 증가시켰다. 이러한 연구결과를 바탕으로 청소년의 이성교제 활성화를 위한 제언과 본 연구의 한계점, 그리고 추후 연구에 대한 방향을 제시하였다. Drawing from the Korean Child and Youth Panel Survey (KCYPS), this study examined the changes in romantic relationship engagement among Korean adolescents across the country over a three-year period and the effects of the individual, familial, and school characteristics on the experience. Panel logit analysis showed that Korean adolescents were more likely to be engaged in a romantic relationship as they became older. Male adolescents were more likely than their female counterparts to have a romantic partner. The higher scores of self-esteem increased the likelihood of adolescents to be in a romantic relationship. On the other hand, having an opposite-sex sibling, the level of parental warmth, and annual household income did not have a significant relationship with the chance of romantic relationship engagement. On the contrary, all school-related variables were statistically related to the odds of being in a romantic relationship. Going to a sex-mixed school increased the odds, whereas academic adjustment and conformity to school rules decreased the likelihood. In addition, the positive relationships with schoolmates and teachers were associated with a higher chance of having a romantic partner. Based on these findings, the implications, limitations, and future research directions were also suggested.

초기 청소년의 사회부과 완벽주의와 자기구실 만들기와의 관계에서 정서인식 명확성의 매개효과

정유진(Jeong Yu Jin),김영희(Kim Yeong Hee) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.5

본 연구는 초기 청소년의 사회부과 완벽주의와 자기구실 만들기와의 관계에서 정서인식 명확성의 매개효과를 확인하고자 하였다. 이를 위하여 경기도 소재 초등학교 5, 6학년에 재학 중인 초기 청소년 604명을 대상으로 2018년 3월 20일~3월 28일까지 사회부과 완벽주의, 자기구실 만들기, 정서인식 명확성 척도를 사용하여 설문을 실시하였다. 자료처리는 SPSS 23.0과 AMOS 22.0으로 통계처리 하였다. 본 연구의 주요결과를 요약하면, 첫째, 사회부과 완벽주의는 자기구실 만들기와 정적 상관관계, 정서인식 명확성과는 부적 상관관계, 정서인식 명확성과 자기구실 만들기는 유의미한 부적 상관관계를 나타냈다. 둘째, 사회부과 완벽주의와 자기구실 만들기와의 관계에서 정서인식 명확성의 매개효과를 알아보기 위해 연구모형과 경쟁모형을 설정 하고 이를 검증한 결과, 정서인식 명확성이 부분 매개하는 연구 모형이 더 적합한 것으로 확인되었다. 이러한 결과는 자기구실 만들기에 영향을 미치는 주요변인들을 확인하여 초기 청소년의 자기구실 만들기 감소 및 예방을 위한 상담 개입방안의 기초 자료를 제공하였다. This study attempted to identify the mediating effect of emotional clarity in the relationship between early adolescents’ socially‐prescribed perfectionism and self‐ handicapping. For this purpose, for604 fifth and sixth grade early adolescent students attending elementary schools in Gyeonggi‐do, this study conducted a questionnaire survey using a scale of socially‐prescribed perfectionism, self‐handicapping and emotional clarity from March 20 to March 28, 2018. Data process was performed with SPSS 23.0 and AMOS 22.0. To summarize the main results of this study, first, socially ‐prescribed perfectionism showed a positive correlation with self‐handicapping, a negative correlation with emotional perceptual clarity, and a significantly negative correlation with emotional clarity and self‐handicapping. Second, in the results of setting up and verifying a research model and a competition model to examine the mediating effect of emotional clarity in the relationship between socially‐prescribed perfectionism and self‐handicapping, the model partially mediated by the emotional perceptual clarity was found to be more appropriate. These results of this study provided the basic data for the counseling intervention strategies for reducing and preventing early adolescents’ self‐handicapping by identifying the main variables affecting self‐handicapping.

여대생의 자기효능감과 대인관계능력이 진로성숙도에 미치는 영향 관계에서 자아탄력성의 매개효과

정유진(Yu-Jin Jeong),변상해(Sang-Hae Byun) 한국콘텐츠학회 2017 한국콘텐츠학회논문지 Vol.17 No.6

본 연구는 자기효능감, 대인관계능력과 자아탄력성을 결합시켜 여대생의 진로성숙도 증진 프로그램 개발을 위한 예비조사로 수행하였다. 이를 위해 2017년 3월 6일 부터 3월 20일까지 진로지원센터를 운영하는 00도 00대학에 재학 중인 여대생 345명에게 설문을 실시하여, 333부를 최종 분석에 사용하였다. SPSS v.22를 활용하여 분석한 결과는 다음과 같다. 첫째, 가정의 수입과 학년은 진로성숙도에서 집단 간 차이를 나타내지 않았다. 둘째, 자기효능감은 진로성숙도에 영향을 미치는 것으로 나타났다. 셋째, 대인관계능력은 진로성숙도에 영향을 미치는 것으로 나타났다. 넷째, 자아탄력성은 자기효능감과 진로성숙도, 대인관계능력과 진로성숙도 사이에서 모두 매개효과를 미치는 것으로 나타났다. 이러한 연구 결과는 의도된 변인들을 결합시킨 진로성숙도 증진 프로그램이 여대생의 진로를 지원하는데 유용한 자료로 활용될 것으로 기대한다. This study was carried out as a preliminary study to help prepare a career support program that combines self-efficacy, interpersonal competence, and self-resilience for female college students. To that end, a survey was executed on 345 female students of two universities, one in the Southern area and one in Norther area of Kyunggi-do from March 6 through 20, 2017, and 333 questionnaires were used for final analysis using SPSS v.22. Major study findings are as follows: First, family income and school years showed no statistically significant differences among groups. Second, self-efficacy was found to influence career maturity. Third, interpersonal competence was found to influence career maturity. Fourth, self-resilience was shown to have a mediating effect in the relationship between both self-efficacy and career maturity, and interpersonal competence and career maturity. These findings have significance in that a career-maturity enhancing program combing all the factors mentioned herein can be served as useful information for universities and colleges which intend to offer such program to female students.

재활전문병원 로비공간에 적용된 유니버설디자인 요소평가

정유진(Jeong, Yu-Jin),황연숙(Hwang, Yeon-sook) 한국실내디자인학회 2007 한국실내디자인학회 학술대회논문집 Vol.9 No.1

Wii Balance Board를 이용한 Sit-to-Stand와 보행시 지면반발력의 타당도 분석

정유진 ( Yu-jin Jeong ),박대성 ( Dae-sung Park ) 대한물리의학회 2016 대한물리의학회지 Vol.11 No.4

PURPOSE: A good, valid, and feasible tool for evaluating sit to stand (STS) is needed to help clinicians quantify the STS ability of stroke patients and people with balance disorders. The purpose of this study was to evaluate the concurrent validity of the Nintendo Wii Balance Board (WBB) and a force plate during STS and gait. METHODS: Seventeen healthy adults performed five trials of STS and gait on the WBB placed on the force plate. The force plate and the WBB were compared in regard to center of pressure (COP) and ground reaction force (GRF) data that were collected simultaneously. The variables used for analysis were time (s), integral summation (%), COP path length (㎜), COP x range, and COP y range, all of which were measured for both tasks. Counter (%), peak (%), and rebound (%) were analyzed for STS, and 1^st peak (%), min peak (%), and 2nd peak (%) were analyzed for gait. The concurrent validity was analyzed using an intraclass correlation coefficient (ICC) and a standard error of measurement (SEM) with a 95% confidence interval. RESULTS: The concurrent validity of the WBB for STS ranged from fair to good (ICC=.701∼.994, SEM=.029∼3.815). The concurrent validity for gait was good (ICC=.869 ∼.989, SEM=.007∼2.052) aside from path length and x and y ranges of COP (ICC=-.150∼.371, SEM=3.635∼4.142). CONCLUSION: The GRF of the WBB has a good validity for STS and gait analysis. The WBB is remarkably portable, easy to use, and convenient for clinically assessing STS and gait.

축열식 촉매 산화(RCO) 반응의 성능 최적화를 위한 전산 해석

정유진(Jung, Yu-Jin),이재정(Lee, Jae-Jeong),정종현(Jung, Jong-Hyeon),김진욱(Kim, Jin-Uk),손병현(Shon Byung-Hyun) 한국산학기술학회 2011 한국산학기술학회논문지 Vol.12 No.11

본 논문에서는 RCO 반응기의 최적 조업 조건을 도출하고자 현재 조업 중인 RTO 반응기 촉매층의 압력분 포, 유속분포, 유선장, 체류시간, 온도분포 등에 대하여 분석하였고 최적의 조업 조건을 도출하기 위한 전산유체해석 을 수행하였다. 전산 해석 결과, 현재 조업중인 반응기 촉매층의 축열재로 인한 압력손실은 크지 않은 것으로 나타 났으며, 세라믹 필터 이후 유속은 1.8∼2.7 m/s로 특별한 편류없이 비교적 안정적 유속분포를 보이고 있었다. 기류분 포를 좀 더 개선하려고 한다면 설비 내부에 플래넘과 촉매층 접속 구간 연장 등의 방법을 고려할 수 있을 것으로 판단된다. 그러나 기류 안내판이나 다공판 부착 등의 방법은 큰 효과는 없을 것으로 나타났다. The computational fluid dynamics was analyzed for the pressure distribution, stream velocity distribution, stream line field, retention time and temperature distribution which are applied to the catalyst layer in the RCO reactor to derive the optimum operating condition of the heat condensing type catalytic oxidation (RCO) reactor. The results from the computational analysis revealed that the pressure loss due to the ceramic honeycomb in the catalytic bed of the reactor which is operating currently is not significant and the stream velocity (1.8∼2.7 m/s) after the ceramic filter is working in stability without big channeling. To improve the stream velocity distribution of the air stream, it is necessary to extension of the connecting range between the plenum and catalytic bed inside the facility. However, the method of attaching the air stream guide vane or the perforated plate inside the reactor was not so effective.

도리스 험프리의 무용이론 "낙하와 회복"에 관한 연구

정유진 ( Jeong Yu Jin ) 한국무용예술학회 1999 무용예술학연구 Vol.4 No.-