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        • KCI등재

          Colorectal epithelial neoplasm associated with gut-associated lymphoid tissue

          전요한,안지현,장희경 대한병리학회 2020 Journal of Pathology and Translational Medicine Vol.54 No.2

          Background: Colorectal epithelial neoplasm extending into the submucosal gut-associated lymphoid tissue (GALT) can cause difficulties in the differential diagnosis. Regarding GALT-associated epithelial neoplasms, a few studies favor the term “GALT carcinoma” while other studies have mentioned the term “GALT-associated pseudoinvasion/epithelial misplacement (PEM)”. Methods: The clinicopathologic characteristics of 11 cases of colorectal epithelial neoplasm associated with submucosal GALT diagnosed via endoscopic submucosal dissection were studied. Results: Eight cases (72.7%) were in males. The median age was 59 years, and age ranged from 53 to 73. All cases had a submucosal tumor component more compatible with GALT-associated PEM. Eight cases (72.7%) were located in the right colon. Ten cases (90.9%) had a non-protruding endoscopic appearance. Nine cases (81.8%) showed continuity between the submucosal and surface adenomatous components. Nine cases showed (81.8%) focal defects or discontinuation of the muscularis mucosae adjacent to the submucosal GALT. No case showed hemosiderin deposits in the submucosa or desmoplastic reaction. No case showed single tumor cells or small clusters of tumor cells in the submucosal GALT. Seven cases (63.6%) showed goblet cells in the submucosa. No cases showed oncocytic columnar cells lining submucosal glands. Conclusions: Our experience suggests that pathologists should be aware of the differential diagnosis of GALT-associated submucosal extension by colorectal adenomatous neoplasm. Further studies are needed to validate classification of GALT-associated epithelial neoplasms.

        • 유구치에서 electrosurgery와 MTA를 이용한 치수절단술

          전요원(Yowon Jeon), 김승혜(Seunhye Kim), 백광우(Kwangwoo Baek) Asia association of Disability and Oral health 2016 대한장애인치과학회지 Vol.12 No.2

          This study investigates the success rate of pulpotomy using electrosurgery operated on a primary molar in caries. The pulpotomy using electrosurgery was done on 253 primary molars of 111 young patients from 2 to 9 years old during the period of the first day of January 2011 to the last day of December 2015. After the amputation of pulp and hemostasis of primary molar were done using electrosurgery, MTA as pulp capping material was applied to the primary molar and the tooth was restored with the stainless steel crown. The follow up period after the treatment ranged from 4-46 months. The clinical and radiographic success rate ranged from 92.1 - 94.3%. Which is comparable to formocresol and ferric sulfate pulpotomy. Due to its non-pharmacological characteristic, electrosurgery can minimize harmful effect on the pulp tissue. Its fast bleeding control makes it easy and safe to use in pediatric and disabled patients in comparatively simple manner. Electrosurgery can be an alternative for pulp therapy considering the side effects of pharmacological ways.

        • KCI등재

          외국인 유학생의 한국어 능력이 학업 성취도에 미치는 영향 연구-학습 변인 간의 매개 경로 분석을 중심으로-

          전요한 이중언어학회 2017 이중언어학 Vol.66 No.-

          This study aims to analyse a correlation between Korean language competence and academic achievements of international students through the mediation analysisusing the variables such as ‘comprehension of lectures', ‘learning attitudes', ‘class satisfaction', and ‘assessment system'. This study found that Korean language competence has a relatively strong correlation with academic achievements, and that there is a mediating path through which Korean language competence give a mediating effect to ‘comprehension of lectures' and ‘learning attitudes', finally to ‘academic achievements', meaning that the better proficiency of Korean language brings the better understanding of the class lectures, which ushers foreign students into the higher academic achievements. These findings suggest us that we should encourage foreign students to continue with the leveled up degree because it will both advance the degree of learning attitudes and in return lead towards better academic achievements, and that we should not set back by only focusing on the development of Korean proficiency. This study shows that lowering the Korean language competence standards for international students would not be reasonable. This study leads to the conclusion that college admission officers are required to increase the entrance level of Korean language competence to allow international students to be successful in college. (Yonsei University)

        • KCI등재

          외국인 유학생의 한국어 능력이 학업 성취도에 미치는 영향 연구

          전요한 ( Jeon Yohan ) 이중언어학회 2017 이중언어학 Vol.66 No.-

          This study aims to analyse a correlation between Korean language competence and academic achievements of international students through the mediation analysis using the variables such as `comprehension of lectures`, `learning attitudes`, `class satisfaction`, and `assessment system`. This study found that Korean language competence has a relatively strong correlation with academic achievements, and that there is a mediating path through which Korean language competence give a mediating effect to `comprehension of lectures` and `learning attitudes`, finally to `academic achievements`, meaning that the better proficiency of Korean language brings the better understanding of the class lectures, which ushers foreign students into the higher academic achievements. These findings suggest us that we should encourage foreign students to continue with the leveled up degree because it will both advance the degree of learning attitudes and in return lead towards better academic achievements, and that we should not set back by only focusing on the development of Korean proficiency. This study shows that lowering the Korean language competence standards for international students would not be reasonable. This study leads to the conclusion that college admission officers are required to increase the entrance level of Korean language competence to allow international students to be successful in college. (Yonsei University)

        • KCI등재

          최근 5년간 소년원 여학생의 치과치료 및 구강건강실태

          전요원,백광우,Jeon,,Yowon,Baek,,Kwangwoo 대한소아치과학회 2016 大韓小兒齒科學會誌 Vol.43 No.4

          본 연구는 만 11세에서 18세 사이에 해당하는 소년원 여학생과 대학병원 소아치과에 내원한 동일한 연령대 환자들의 구강 건강상태를 조사하여 차이점을 비교하고자 시행되었다. 최근 5년간 누적된 소년원 여학생과 아주대학교병원 소아치과에 내원한 환자의 치과기록을 수집하여 치과치료에 분석하였다. 소년원 여학생과 대학병원 환자 모두 수복치료가 가장 높은 비중을 차지하였다. 소년원 여학생에서는 치아우식에 의한 영구치의 발거가 중,고등학교 시기에 점차 증가한 반면에 대학병원 환자에서는 영구치의 발거 비율이 적었다. 현재 수용되어있는 만 11부터 18세까지의 소년원 여학생 130명과 최근 1년간 대학 병원 소아치과에 내원한 환자에 대해 구강검진을 시행하여 우식, 상실, 충전 치아 수를 검사하여 구강건강상태를 조사하였다. 우식경험영구치지수가 대학병원에서 4.15인 반면에 소년원 여학생에서는 7.53로 약 2배 높았다. This research investigates into overall oral health status of adolescent girl inmates in a juvenile detention facility and ordinary school students in the same age range of 11 to 18 years old and compares the results focusing on the difference between the two groups. The last 5 years dental records for girl inmates in Juvenile detention facility and for students who have visited the Department of Pediatric Dentistry at Ajou University Hospital was colleted and analyzed. The restorative treatments took up the greatest part in their history of treatments. While the percentage of extractions of permanent teeth due to dental caries had been gradually increased, in Juvenile detention facility students, throughout the transition period from middle school to high school, in dental hospital patients, the phenomenon of the same kind has hardly been detected. After that record analysis, oral examination for Juvenile detention facility students and dental hospital patients was conducted. DMFT index for dental hospital patients are 4.15, whereas, the value for Juvenile detention facility students are as twice as high to be 7.53.

        • KCI등재

          중국 농촌 부녀의 토지권익 및 보호에 관한 연구

          전요 중앙대학교 법학연구원 문화.미디어.엔터테인먼트법연구소 2011 문화.미디어.엔터테인먼트 법 Vol.5 No.2

          현재 중국은 사회변화의 특수한 시기에 처해있다. 사회의 개혁과정에서 여러 가지 문제가 동반하는 것은 당연하다고 본다. 일부 농촌부녀들은 토지제도개혁에서 제일 큰 약세집단으로 되고 그 토지권익은 큰 침해를 받고 있다. 또한 이러한 약세집단에 대한 법제도상의 보호가 결핍하고 예전의 전통문화의 영향으로 말미암아 농촌 부녀들의 권익이 침해를 받는 현상이 보편적으로 존재한다. 따라서 국가는 약세집단에 대한 특별한 보호제도를 제정하여야 하고, 권리구제방법을 정비하여야 하며, 부녀들의 합법적 권익이 실제로 보호되도록 하여야 한다. 我国正处于社会转型的特殊时期, 社会的改革必定会带来各种问题的产生, 部分农村妇女在土地制度变革中成为最大的弱势群体, 其土地权益受到严重的侵害。加之, 法律制度对弱势群体的保护存在缺失, 旧的文化传统影响严重, 从而导致农村妇女权益受侵害现象普遍存在。因此, 国家不仅需要对弱势群体制定不同的倾斜性保护制度, 还需要完善权利救济机制和途径, 将保障妇女合法权益落到实处。

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