연수기 - 일본 성마리아 병원 연수기(1차)

최은진,Choi, Eun-Jin 한국가톨릭의료협회 2003 한국가톨릭병원협회지 Vol.33 No.-

Study of the Kinetic Effects on Relativistic Unmagnetized Shocks using 3D PIC Simulations

최은진,민경욱,최청림,Choi, Eun Jin,Min, Kyoung W.,Choi, Cheongrim,Nishikawa, Ken-Ichi 한국천문학회 2012 天文學會報 Vol.37 No.2

Shocks are ubiquitous in astrophysical plasmas: bow shocks are formed by the interaction of solar wind with planetary magnetic fields, and supernova explosions and jets produce shocks in interstellar and intergalactic spaces. The global morphologies of these shocks are usually described by a set of magnetohydrodynamic (MHD) equations which tacitly assumes local thermal equilibrium, and the resulting Rankine-Hugoniot shock jump conditions are applied to obtain the relationship between the upstream and downstream physical quantities. While thermal equilibrium can be achieved easily in collisional fluids, it is generally believed that collisions are infrequent in astrophysical settings. In fact, shock widths are much smaller than collisional mean free paths and a variety of kinetic phenomena are seen at the shock fronts according to in situ observations of planetary shocks. Hence, both the MHD and kinetic equations have been adopted in theoretical and numerical studies to describe different aspects of the physical phenomena associated with astrophysical shocks. In this paper, we present the results of 3D relativistic particle-in-cell (PIC) simulations for ion-electron plasmas, with focus on the shock structures: when a jet propagates into an unmagnetized ambient plasma, a shock forms in the nonlinear stage of the Weibel instability. As the shock shows the structures that resemble those predicted in MHD systems, we compare the results with those predicted in the MHD shocks. We also discuss the thermalization processes of the upstream flows based on the time evolutions of the phase space and the velocity distribution, as well as the wave spectra analyses.

지리적 기원이 다른 Pseudomonas syringae pv. actinidiae 균주들의 표현형적 특성

최은진,이영선,김경희,고영진,정재성,Choi, Eun Jin,Lee, Young Sun,Kim, Gyoung Hee,Koh, Young Jin,Jung, Jae Sung 한국미생물학회 2014 미생물학회지 Vol.50 No.3

Pseudomonas syringae pv. actinidiae는 참다래 속(genus Actinidia) 식물에 궤양병을 일으키는 원인세균이다. 7개의 필수 유전자와 11개의 타입 III 효과기 유전자에 대한 다중염기서열 분석을 통해 전 세계 여러 곳에서 분리된 병원성 균주들은 세 그룹으로 나눌 수 있었고 각각 Psa1-Psa3 그룹으로 명명되었다. 본 연구에서는 3개의 Psa1, 3개의 Psa2 및 우리나라와 이탈리아에서 분리된 3개씩의 Psa3 균주 등 총 12 균주를 대상으로 그룹별 표현형을 비교하였다. 그 결과 모든 그룹의 균주가 $22^{\circ}C$ 이하에서 최대의 성장을 보였으며, Psa3 균주들은 $30^{\circ}C$ 이상의 온도에서 성장이 정지되었다. 또한 우리나라의 Psa3 균주의 지연기가 이탈리아 Psa3 균주 보다 긴 특징을 보였다. API 20NE 시험에서 Psa2 균주는 potassium gluconate, capric acid 및 trisodium citrate를 이용하지 못하는 점에서 Psa1과 Psa3 균주와 구별되었다. 다른 그룹과 달리 우리나라 Psa3 균주는 esculin을 가수분해할 수 있었다. API ZYM 시험에서는 Psa3에 속하는 균주들에서만 ${\beta}$-glucosidase 활성이 있는 것으로 나타났다. Psa 그룹에 따라 ampicillin, novobiocin 및 oleandomycin 등의 항생물질에 대한 민감성 양상이 서로 달랐다. Pseudomonas syringae pv. actinidiae is the causal agent of bacterial canker in kiwifruit (genus Actinidia). Multilocus sequence analysis of seven housekeeping and 11 type III effector genes differentiated the virulent P. syringae pv. actinidiae isolates worldwide into three groups designated as Psa1-Psa3. In this work, a total of 12 P. syringae pv. Actinidiae strains, including three Psa1, three Psa2, three Psa3 strains isolated from Korea and three Psa3 strains from Italy, were compared based on their phenotypic properties. Strains with different geographic origins had unique growth patterns as demonstrated by growth rate at several temperatures; all tested strains exhibited maximum growth at temperatures below $22^{\circ}C$, while the growth of Psa3 strains was completely inhibited above $30^{\circ}C$. Psa3 strains isolated from Korea had longer lag phases than the Psa3 strains from Italy. The Psa2 strains were different from Psa1 and Psa3 strains in the API 20NE test, in which the Psa2 strains could not utilize potassium gluconate, capric acid and trisodium citrate. Psa3 strains isolated from Korea could hydrolyze esculin. The API ZYM test showed that ${\beta}$-glucosidase activity was detected only from Psa3 strains. The strains belonging to the three Psa groups differed with regard to their susceptibility to ampicillin, novobiocin, and oleandomycin.

Two cases of postoperative chylothorax treated with parenteral octreotide and conservative therapy

최은진,이섭,Choi, Eun Jin,Lee, Sub The Korean Pediatric Society 2007 Clinical and Experimental Pediatrics (CEP) Vol.50 No.3

Chylothorax is a rare complication following cardiac surgery for congenital heart diseases. Although conservative management is successful in the majority of cases, surgical intervention is required in a refractory one. Recently, subcutaneous or intravenous infusion of octreotide has been used as a safe treatment that helps avoiding surgical intervention. Herein, we report two cases of postoperative chylothorax treated with parenteral octreotide and conservative therapy. 선천성 심장병의 수술후 발생되는 유미흉은 드문 합병증이다. 이는 수분, 전해질 및 영양의 불균형을 초래할 뿐만 아니라 감염에 취약함을 보이기도 한다. 지금까지의 보존요법에 대해 비교적 치료성적이 좋으나 치료에 반응하지 않는 경우에는 수술적 중재가 불가피하다. 저자들은 보존요법과 octreotide 주입을 병행하여 수술적 중재를 피하고 효과적으로 치료한 수술후 발생된 유미흉 2례를 보고하는 바이다.

마타리 뿌리로부터 분리한 Lignan 화합물의 IL-6 저해활성

최은진(Eun Jin Choi),김청룡(Qinglong Jin),신지은(Ji Eun Shin),김현규(Hyun-Gyu Kim),김정진(Jung Jin Kim),우은란(Eun-Rhan Woo) 대한약학회 2009 약학회지 Vol.53 No.4

In an ongoing investigation into anti-inflammatory compounds from natural products, the CH2Cl2soluble fraction of Patrinia scabiosaefolia F. (Valerianaceae) was found to inhibit IL-6 production in TNF-α stimulated MG-63 cell line. By means of a bioassay-directed chromatographic separation technique, lappaol E (1), and nortrachelogenin (2) were isolated. These compounds have been isolated from this plant for the first time. Compounds 1~2 showed potent antioxidative activity using NBT superoxide scavenging assay. Moreover, compound 1 decreased IL-6 production in TNF-α stimulated MG-63 cell line.

중국(中國) 기독교계(基督敎系) 여자대학(女子大學)의 설립(設立)과 전개(展開)

崔恩珍 ( Choi Eun Jin ),鄭惠中 ( Chung Hye Jung ) 중국사학회 2019 中國史硏究 Vol.0 No.122

Around the dawn of the 20th century, movements for higher education for women appeared in East Asia. Japan was the first country in the establishment of women’s college in East Asia but it could not be said that the college education was linked to the women's movement, leading to the improvement of women's status. Although there were some efforts of individual governments, the beginning of Northeast Asian Women’s higher education could not be discussed excluding the presence of American Christianity which had been interested in and continued to support East Asian Women’s education since mid 19th century. Especially the influence of Methodist Episcopal Mission should be noted. The study of the influence of American Christianity on East Asian women's higher education has been conducted in the context of mission and religion, but it remained intact that the understanding from the perspective of network or the integrated view of embracing East Asia. The various denominations of the Protestant Church in the United States have supported missionary and founded education institution in East Asia, including China. However, from the Christian point of view, China was the lowest in return for investment due to the establishment of a socialist state. Even compared to the results of Korea, where the education and missionary activities were belatedly about to embark on crusade around Seoul, the achievements were much greater than those of China. From the educational reform in the late Qing dynasty, which was considered relatively successful, the Japanese school system was introduced. Moreover the modern university system was completed in the early Republic of China, but did not lead to rapid growth. It showed uneven features from 1920s to 1940s influenced by the undergoing political upheaval. After the First Missionary Conference in 1877, mission schools were active in teaching, and increased in size and number, creating demands for higher education. In addition to the institutional support of the Chinese government, women's education has actually been expanded to co-education and vocational education. As it was not possible to enter higher education institution after completing secondary education, women’s university emerged as an answer to the necessity of setting up women-only higher education institutes. In terms of the size of enrolled students in the 1920s, overwhelming students belonged to either Kinryo Women's college or Hwa Nan College. Hwa Nan College was based in Fuzhou where the beginning of modern education could be traced back to 1859. It was the result of gathered strength through networks of missionaries at the missionary conference in 1880. In particular, the founding process of the Hwa Nan College revealed the characteristic of women’s higher education in China which was the combination of American-style education under the influence of the Christian missionary in Japanese school system.

경남 방언의 비의도적 반어 표현

최은진 ( Eun Jin Choi ) 문창어문학회 2005 문창어문논집 Vol.42 No.-

모바일 센싱 기반의 걸음 수와 스트레스와의 관계에서 정서의 다층매개 효과 분석

최은진(Eun-Jin Choi),유상현(Sang-Hyun Yoo) 한국디지털콘텐츠학회 2024 한국디지털콘텐츠학회논문지 Vol.25 No.1

군산미(群山米)의 대일 수출구조

최은진(Choi, Eun-jin) 한국역사연구회 2011 역사와 현실 Vol.- No.81

The purpose of this study is to analyze how the Gunsan area's rice was exported to Japan, from the time of the port opening(1899) through the 1910s, in order to examine the relationship between Japan rice exporters in Korea and rice importers in Japan. The overall quantity of the Gunsan rice exported to Japan was controlled not only by the projected size of consumption of Gunsan rice inside Japan, but also by the rice importers in the zaibatsu class of Japan. They were subsidized by the Japanese government on large capitalists. Japanese large capitalists were not pleased with the rice imports and sales of Korean rice in their home country. They advanced into Joseon and went on to dominate both the rice exports and the collection of Joseon rice. They even engaged in rice production. The Gunsan port and its nearby areas were where farms owned by Japanese 'company-style landowners' were largely spread.

가출청소년을 위한 아웃리치동반자 사업의 실태 및 활성화방안

최은진 ( Eun Jin Choi ) 한국청소년복지학회 2010 청소년복지연구 Vol.12 No.4

본 연구는 가출청소년을 위한 아웃리치동반자 사업의 실태 및 활성화방안을 알아보고자 하였다. 이를 위해 2009년 보건복지가족부가 실시한 아웃리치동반자 사업에 참여한 실무자 143명을 설문조사 하였다. 조사결과 아웃리치동반자들은 아웃리치동반자 사업이 가출 청소년의 예방과 위기청소년 조기발견 및 개입, 일반청소년의 가출예방에 효과적이며 향후 확대되어야 한다는 필요성을 강하게 인식하는 것으로 나타났다. 그러나 세부적으로는 아웃리치동반자에 따라 사업의 목표를 상이하게 인식하였고 교육 및 훈련이 부족하고, 가출청소년의 욕구에 적합한 서비스가 적절하게 제공되지 못한다고 인식하였다. 또한 활동 중 클라이언트 폭력에 노출될 뿐 아니라 급여 및 근무조건은 매우 열악한 것으로 나타났다. 더불어 아웃리치동반자들은 향후 아웃리치동반자 사업이 확대 실시되어야 하며 아웃리치동반자 사업에 적합한 재교육 및 수퍼비젼, 가출청소년의 욕구에 맞는 서비스 개발, 활동 중 발생하는 위험에 따른 위기 관리 및 대책, 근무 처우 개선을 원하였다. 결과적으로 아웃리치동반자 사업이 가출청소년의 재 가출 예방 및 지원 에 보다 효과적이고 체계적으로 대응하기 위해서는 아웃리치동반자 사업의 확대 실시, 사업 목 표 및 대상의 명확화, 서비스 전달체계의 확립, 근무여건의 향상 등이 이루어져야 하겠다. This study is aimed to look into the status of an out·reach companion project for runway adolescents and a plan for revitalization of it. For this, the survey was conducted on 143 people involved in an out·reach companion project which was implemented by Ministry of Health & Welfare in 2009. As a result, the goal of present out·reach companion project was differently recognized depending on companions, and education and training were insufficient in much of them and the content of service was not satisfactorily provided to meet the desire of runway adolescents and the working condition was not only exposed to clients` violence but payments and working conditions were very poor. The reform plan that out·reach companions hope for the future was that the goal and subject are clearly given, not accomplishment-centered activities so that it could be provided to those in need, and for education and training, they wanted the enhancement of field training that can be substantially used at field and diversity of content of education and wanted the offer of sufficient service for runway adolescents and thorough prevention and measures against risks of out·reach companions and improvement of labor conditions. Through this study, it was verified that a out·reach companion project is very effective to for the prevention of re-runway of runway adolescents and needs to be extensively and systematically executed for the future. Besides, as for the extended projects, clarification of the goal of a out·reach companion project, the establishment of service delivery system, improvement of working conditions are required to be made.