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위배출구 폐색에서 발견된 담낭루를 동반한 황색육아종성 담낭염
조효진 ( Hyo Jin Cho ),박주상 ( Ju Sang Park ),김정희 ( Jung Hee Kim ),전동옥 ( Dong Ok Jeon ),김기호 ( Ki Ho Kim ),권계원 ( Kye Won Kwon ) 대한췌장담도학회 2015 대한췌담도학회지 Vol.20 No.3
Xanthogranulomatous cholecystitis (XGC) is a rare type of chronic inflammation of the gallbladder characterized by focal or diffuse destructive inflammatory responses. Although it is a benign condition, its destructive course may lead to more aggressive outcomes of the gallbladder, such as local infiltration, fistula, stricture, and perforation as compared with other gallbladder inflammations. There are reports about XGC accompanied by cholecystoenteric fistula. However, XGC accompanied by more than one cholecystoenteric fistula is rare. We report a case of a 54-year-old man with gastric outlet obstruction arising from XGC, accompanied by cholecystoduodenal fisula and cholecystocolonic fistula, but without impacted gallstones.
온실효과 진행 과정과 관련된 예비 지구과학교사들의 개념 구조 분석
조효진(Cho, Hyo-jin),정덕호(Chung, Duk Ho),이철민(Lee, Chul Min) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.1
목적 이 연구의 목적은 온실효과 진행 과정과 관련된 예비 지구과학교사들의 개념 구조를 알아보는 것이다. 방법 이를 위해 먼저 연구자들은 10명의 예비 지구과학교사들로부터 온실효과의 발생 과정에 대한 언어 자료를 얻었다. 연구자들은 예비 지구과학교사들의 언어 자료에 대해 언어네트워크분석법을 활용하여 단어 사이의 네트워크와 각 단어의 위세 중심성을 분석하였다. 그리고 네트워크에 대한 커뮤니티 분석을 시행하여 표준 진술 플롯과 네트워크 내 하위 그룹 간의 비교를 통해 그들의 온실효과 진행 과정에 대한 인식을 분석하였다. 결과 첫째, 예비 지구과학교사들은 온실효과와 열수지를 중요하게 연관 지어 인식하였다. 둘째, 대부분의 예비 지구과학교사들은 온실효과에서 에너지가 현열과 잠열의 형태로 전달됨을 인식하고 있지 않았다. 셋째, 예비 지구과학교사들은 온실효과에서 온실기체에 의해 지구표면과 대류권이 보온 또는 더워짐을 중요하게 인식하고 있지 않았다. 결론 그러므로 온실효과에 대한 고등학교 교육과정과 비교하여 예비 지구과학교사들의 교육과정에서 현열, 잠열과 같은 다양한 형태의 에너지 전달에 대한 구체적인 교육이 필요하다. 또한, 열수지를 통한 에너지 전달 과정보다 에너지 순환의 관점에서 온실효과로 인한 지표면과 대기권 보온의 중요성을 인식할 수 있도록 이에 대한 강조가 필요하다. Objectives The purposes of this study is to analyze pre-service earth science teachers’ the conceptual structure related to process of greenhouse effect. Methods To this end, researchers obtained language data on the process of greenhouse effects from 10 pre-service earth science teachers. Researchers analyzed the network between words and the eigenvector centrality of each word using semantic network analysis for language data of pre-service geoscience teachers. In addition, community analysis of the network was conducted to analyze their perception of the progress of the greenhouse effect through comparison between the standard statement plot and the subgroup within the network. Results First, pre-service earth science teachers recognized that the greenhouse effect and heat budget are importantly related. Second, most pre-service earth science teachers did not recognize that energy is transferred in the form of sensible heat and latent heat in the greenhouse effect. Third, pre-service earth science teachers did not recognize that the earth’s surface and troposphere were getting warm or hot by greenhouse gases in the greenhouse effect. Conclusions Therefore, compared to the high school curriculum on the greenhouse effect, specific education on various forms of energy transfer such as sensible heat and latent heat is needed in the curriculum of pre-service earth science teachers. in addition, It is necessary for the pre- teachers to recognize the importance of the warming of the earth s surface and atmosphere by the greenhouse effect in the aspects of energy circulation rather than the energy transfer process through the heat budget.
Hyo-Jin Cho(조효진),Sun-Nyoung Yu(유선녕),Kwang-Youn Kim(김광연),Jae-Hak Sohn(손재학),Hyuncheol Oh(오현철),Soon-Cheol Ahn(안순철) 한국생명과학회 2009 생명과학회지 Vol.19 No.1
전립선암은 현대 남성들에게 걸리기 쉬운 질병으로 나이가 들수록 발병의 위험이 증가하는 질환으로 현재 우리나라에서도 점점 증가하는 추세이다. 전립선암 치료법들은 치료영역이 제한적이고 재발할 가능성이 높아 근본적인 치료법으로는 사용되지는 못하므로 새로운 전립선암 치료 방법이 필요하다. 이에 본 연구에서는 100 여 가지의 한약재 methanol 추출물을 이용하여 MTT 방법으로 전립선암 세포주인 PC-3 세포에 대한 항증식 효과를 탐색하였으며 그 결과, A. sylvestris가 가장 강한 항증식 활성을 보였다. A. sylvestris의 methanol 추출물로부터 저해물질을 분리하기 위하여 100% methanol에서 2-3일 추출하고 난 뒤, ethyl acetate로 추출하고 silica gel, reverse phase-18, Sephadex LH-20 등의 컬럼 크로마토그래피를 이용하여 분리하였다. 최종적으로 활성분획을 HPLC로 분리하고 4℃에서 methanol 용액에서 입방체 형태의 결정을 얻었으며 NMR 분광법과 이화학적 특성을 분석한 결과, deoxypodophyllotoxin으로 동정되었다. 순수 분리된 deoxypodophyllotoxin은 전립선암의 세포주 PC-3 세포에서 처리농도와 처리 시간 의존적인 항증식 효과를 보였다. The prostate cancer is the critical health problem, increasing of its related death in worldwide. Unfortunately present surgery and chemotherapeutic choices seem to be impossible in curing or controlling prostate cancer, because metastasis occasionally advances even after these potentially curative therapies. Therefore, there is immediate need to alternative chemoprevention and chemotherapeutic agents. Over one hundred species of dried medicinal herbs were tested for proliferation inhibitory effects on prostate cancer cell line, PC-3. One of them, Anthriscus sylvestris was selected because of potent anti-proliferation effect. The dried root of A. sylvestris was extracted with 100% methanol for 2-3 days and its extract was fractionated by using ethyl acetate. And ethyl acetate layer was subjected to column chromatographies on silica gel, reverse phase-18 (RP-18) and Sephadex LH-20, in turn. Finally, the pure compound was obtained by crystallization in methanol at 4℃ for overnight and identified as deoxypodophyllotoxin by NMR spectorscopic and physico-chemical analyses. In addition, it was confirmed that deoxypodophyllotoxin clearly inhibits the proliferation of PC-3 cells in a doseand time-dependent manner.
영화를 활용한 미디어 리터러시 기반 지리학습 방법 고찰 -스텝업 4: 레볼루션을 사례로-
박효진 ( Hyo Jin Park ),조철기 ( Chul Ki Cho ) 한국사진지리학회 2014 한국사진지리학회지 Vol.24 No.3
This study is to explore the ways for planning and teaching and learning geography lessons using movies for fostering media literacy. To teach and learn unit ‘urban redevelopment’ of Korean geography textbook in high school, the lessons use the movie ‘Step Up4: Revolution’ to apply media literacy strategy. The lessons focus for students not to watch the movie but read and interpret geographical phenomenon represented in the movie. Thus the teacher gave students well-framed worksheets, and they analyzed physical and human environment, characters, conflict and its resolution surrounding urban redevelopment from scenes in movie using them. most of students was very interested in the lessons and engaged in media literacy strategy. The result showed that most of students expressed very well physical and human features in landscapes represented in the movie. But They found grasping groups` conflict and its resolution surrounding urban redevelopment difficult. One of the reasons is that students is absorbed in characters`s dance and misses deep massages behind the dance. Thus for fostering high-order media literacy to students, the lessons using a media relevant geographical topics have to continue.
김영진,이선이,조효진,유선녕,김광연,최원철,허문수,안순철,Kim, Yeong-Jin,Lee, Sun-Yi,Cho, Hyo-Jin,You, Sun-Nyoung,Kim, Kwang-Youn,Choi, Won-Chul,Heo, Moon-Soo,Ahn, Soon-Cheol 한국생명과학회 2006 생명과학회지 Vol.16 No.7
Shrimp has efficient non-specific defense mechanisms based on activities of the hemocytes against pathogens. Up to now, it has been known that one of the non-specific immune reactions is related to mutual association among types of hemocyte, granular cell, semi-granular cell, and hyaline cell. In this study, we tried to know the effectiveness of feed-additives such as 5-aminolevulinic acid(ALA), chitosan, and hot-water extract of herb on immunity of shrimp (Penaeus chinensis) by hemocytic observation and SDS-PAGE analysis. Finally, we suggest a principle of the examination system for effects of various feed-additives.