Case Reports : Non-Hodgkin`s Lymphoma Manifest as Gingival Hyperplasia in a Renal Transplant Recipient

권정현 Jung Hyun Kwon,Joon Chang Song,Sang Hun Lee,So Young Lee,Chul Woo Yang,Yong Soo Kim,Byung Kee Bang 대한내과학회 2005 The Korean Journal of Internal Medicine Vol.20 No.4

Gingival hyperplasia is a frequent complication in transplant patients who receive cyclosporine or calcium channel blockers. We studied an unusual case involving a renal transplant recipient with post-transplant non-Hodgkin`s lymphoma that manifested as gi

중년비만여성의 지방대사활성을 위한 적정 운동강도의 평가

권정현(Jung Hyun Kwon),김정주(Jung Ju Kim),노호성(Ho Sung Nho) 한국발육발달학회 2005 한국발육발달학회지 Vol.13 No.1

역류식도염 환자에서 Helicobacter pylori 감염과 Gastrin, Pepsinogen의 관계 -역류식도염과 H. pylori 감염, 위축위염의 관계-

권정현 ( Jung Hyun Kwon ),정인식 ( In Sik Chung ),손혜숙 ( Hye Suk Son ),박재명 ( Jae Myung Park ),조유경 ( Yu Kyung Cho ),이인석 ( In Seok Lee ),김상우 ( Sang Woo Kim ),최명규 ( Myung Gyu Choi ) 대한소화기학회 2008 대한소화기학회지 Vol.51 No.3

목적: H. pylori 감염은 위축 위염의 중요한 원인이 되며, 혈청 gastrin과 pepsinogen (PG) 분비에도 영향을 미친다. 위식도역류질환 환자에서 H. pylori의 빈도가 낮다는 보고들이 있으나 위식도역류질환의 발생과 H. pylori 감염의 관계는 아직도 분명치 않다. 이번 연구에서는 미란 식도염(erosive reflux esophagitis, ERD)의 원인인자인 위산 분비와 관련이 있는 H. pylori 감염과 gastrin, PG I, II 및 I/II 비와의 관계를 알아보고자 하였다. 대상 및 방법: 환자 2006년 3월부터 10월까지 강남성모병원에서 한 명의 내시경 전문의가 상부위 장관 내시경 검사로 ERD로 진단한 환자를 대상으로 하였고 나이와 성을 대응시켜 대조군을 선정하였다. 두 군 모두 내시경 검사에서 궤양 등의 다른 위장관 질환이 있거나 제균 치료를 받은 자는 제외하였다. 음주와 흡연 유무, 신체질량 지수(BMI)를 조사하였고 H. pylori 감염, 혈청 PG I, II (라텍 스응집면역비탁법)와 gastrin (방사면역측정법)을 검사하였다. 결과 총 45명의 ERD 환자군과 66명의 대조군을 비교하였다. H. pylori 감염은 ERD군에서 대조군보다 낮았다(11.1%vs. 43.9%, p<0.05). PG I/II 비는 ERD군에서 대조군보다 높았다(7.0±3.1 vs. 5.3±2.6, p<0.05). PG II와 gastrin은 ERD군에서 대조군 보다 낮았다(p<0.05), BMI는 ERD군이 대조군보다 높았다(24.46 kg/m2 vs. 23.08 kg/m2, p<0.05). 결론: 한 국인에서 ERD 환자군은 대조군보다 H. pylori 감염률이 낮고, PG I/II 비가 증가되어 있어 역류식도염은 위점막의 위축이 더 적은 환자에서 잘 생기는 것으로 생각한다. PG I/II비는 H. pylori 감염 검사와 함께, ERD 환자군에서 동반되어 있는 위축 위염의 형태나 정도, 위산 분비 정도를 예측해 볼수 있는 인자로서 유용성이 있다고 생각한다. Background/Aims: Helicobacter pylori (H. pylori) infection is known as a major cause of atrophic gastritis and is associated with serum gastrin, pepsinogen, and gastric acid secretion. There is still a controversial association between gastroesophageal reflux disease and H. pylori infection. This study was designed to investigate the relationship among serum gastrin, pepsinogen, and H. pylori infection in the erosive reflux esophagitis (ERD) patients. Methods: Patients who were diagnosed as ERD by one gastroenterologist at the Kangnam St. Mary`s hospital were prospectively enrolled. The persons without ERD in the control group were matched for age and sex. We examined the gastrin, pepsinogen I (PG I), PG II, PG I/II ratio, and H. pylori infection. Results: Forty five patients were enrolled in ERD group and 66 persons in control group. The H. pylori infection rate in ERD group was lower than that in the control group (11.1% vs. 43.9%, p<0.001). PG I/II ratio in ERD group was higher than that in the control group (7.0±3.1 vs. 5.3±2.6, p=0.003). The PG II (p=0.016) and gastrin (p=0.029) in ERD group were lower than those in the control group. BMI in ERD group was higher than that in the control group (24.5 vs. 23.1 kg/m2, p=0.013). Conclusions: The H. pylori infection rate in ERD group was lower and PG I/II ratio was higher than that in the control group. Reflux esophagitis is thought to be reversely associated with the atrophy of gastric mucosa. (Korean J Gastroenterol 2008;51:159-166)

역사적 신제도주의 경로의존성 관점에서의 교장공모제 제한요인 분석

권정현(Kwon Jung-Hyun),김도기(Kim Do-ki),문영빛(Moon Young-bit) 한국교육행정학회 2015 敎育行政學硏究 Vol.33 No.3

본 연구는 교장공모제 도입 목적과 실제 운영상의 괴리 현상에 주목하여, 교장공모제 운영 방식이 기존 교장임용제도인 승진제와 초빙제의 모습을 따라가는 경로의존현상임을 밝히는 데 목적이 있다. 교장공모제가 기존 제도에 경로의존하게 되는 원인을 밝히기 위해서 역사적 제도주의의 제도적 맥락과 경로의존성 개념을 이용하였다. 연구 결과 첫째, 보수적, 경력 중 심의 교직 문화가 제도적 맥락으로 작용하여 경로의존성에 영향을 주었다. 둘째, 경로의존성 과 관련된 연구물을 통해 경로의존성의 원인을 크게 5가지로 파악하여 교장공모제의 제한요 인을 분석하였다. 그 원인으로는 변화에 소요되는 비용의 문제, 권력 불균형의 문제, 복잡한 현실과 인식의 제약, 제도의 점착성, 제도적 상호보완성이 탐색되었다. 그리고 이와 같은 제 한요인을 통해 교장공모제라는 경쟁을 통한 임용방식의 개선보다는 ‘유능한 교장’을 양성하는 측면에 제도 개선의 초점을 더욱 맞출 필요가 있음을 제안하였다. The study was intended to prove the existence of the path dependence phenomenon within the way the open recruiting principal employment system has operated in conjunction with aspects of the already existing principal employment system. To do that, we focused on the differences between the original aims of and the actual operation upon adopting the open recruiting principal employment system. We applied the path dependency theory in order to discover how similar the adoption of the open recruiting principal employment system was to the previous system. As a result, first, the path dependence was affected conservatively and centered in the career culture in schools as an institutional context. Second, the constraints of the open recruiting principal employment system were analyzed via five causes of path dependency through research of related path dependency. The causes are problems of costs, asymmetries of power, intrinsic complex and opacity, sticky of institutional change and institutional complementarities. And through such constraints, we suggested that the focal point be more aimed at raising competent principals than at running a recruiting principal employment system by competitions for developing institutions.

지속적 통합 환경에서 회귀 테스트 기술의 비용효율성에 대한 실패 관심도 기반 분석

권정현(Jung-Hyun Kwon),고인영(In-Young Ko) 한국정보과학회 2018 정보과학회논문지 Vol.45 No.10

지속적 통합 환경에서 비용효율적인 회귀 테스트 기술을 적용함으로써 개발자에게 테스트 실패에 대한 빠른 피드백이 가능하다. 본 연구는 테스트 수행 이력을 기반으로 하는 두 가지 테스트케이스 실행순서 결정 기술(Test Case Prioritization, TCP)을 세 개의 산업체 프로젝트에 적용하여 각 기술의 비용효율성을 측정하였다. 그리고 지속적 통합 환경에서는 각 테스트 실패에 대한 관심도가 서로 다르므로 이를 고려하여 실험하였다. 관심도를 다르게 하였을 경우, 두 TCP 기술을 적용한 경우가 TCP 기술을 적용하지 않은 경우와 비교하여 유사한 비용효율성을 보일 수 있음을 발견하였다. 실험결과는 최신 테스트케이스 실행순서 결정 기술의 개선 필요성을 시사한다. In continuous integration (CI) environments, it is possible to provide fast feedback on test failures by applying cost-effective regression-testing techniques. In this study, we analyze the cost-effectiveness of two test-case prioritization techniques based on the test history of three industrial projects. In addition, because test failures may have different degrees of attention paid to them by different developers in CI environments, we consider this characteristic in the experiment. As a result, we discovered that the cost-effectiveness of applying the TCP techniques can be similar to that of not applying any of the TCP techniques when failure of the developers to pay attention is considered. The experiment shows that it is necessary to improve the state-of-the-art test-case prioritization techniques for CI environments by considering such characteristics.

시뮬레이션을 활용한 초등학교 경제 수업 사례 연구

권정현(Kwon Jung-Hyun),문영빛(Moon Young-bit) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.6

목적 본 연구는 초등학교 학생들이 1개의 직업을 갖고 생산과 소비 활동 모두를 경험하는 시뮬레이션 수업 사례를 제시하는 데 그 목적이 있다. 방법 학생들은 시뮬레이션 수업 절차에 따라 상황 설정하기, 직업 선택하기, 직업인으로서 경제 활동하기, 평가하기 순으로 수업에 참여하였다. 수업은 10 ~ 11월까지 총 16시간 동안 이루어졌다. 결과 학생들은 직업을 갖고 다른 학생들이 소비할 만한 물건이나 서비스를 생산했고, 자신에게 필요한 것을 소비했다. 이러한 경험을 바탕으로 ‘경제’란 용어를 자신의 말과 글로 설명할 수 있었다. 결론 이 수업에서 연구자는 다음 2가지 점에 유의하여 수업을 계획하였다. 첫째는 학생들이 수업 내용을 자신의 눈으로 볼 수 있게 수업을 계획하였다. 두 번째는 자신이 본 수업을 자신의 말로 설명할 수 있도록 수업을 구상하였다. Objectives The purpose of this study is to provide a case of simulation-learning in which each elementary school students have a job and an activities of production and consumption. Methods The students learned according to the simulation instructional procedure that is in the order of setting situations, choosing jobs, working economically as professionals, and evaluating them. The instruction were held for a total of 16 hours from October to November. Results Each students got a job, and produced goods or services that other students would consume, and consumed what they needed. Based on these experiences, they described ‘economy’ in their own words. Conclusions In this instruction, the researcher planned the instruction with two points in mind: First, the classes was planned so that students could see the contents of the instruction with their own eyes. Second, the researcher designed the classes so that students could explain their experience of the classes in their own words.

만성 B형간염에서의 면역조절치료

권정현 ( Jung Hyun Kwon ) 대한간학회 2008 Clinical and Molecular Hepatology(대한간학회지) Vol.14 No.3

증례 : 급성 췌장염과 카테콜아민 유발성 심근병증을 동반한 크롬친화세포종 1예

권정현 ( Jung Hyun Kwon ),장기육 ( Ki Yuk Chang ),문성진 ( Sung Jin Moon ),홍석인 ( Seok In Hong ),신우승 ( Woo Seung Shin ),전희경 ( Hui Kyung Jeon ),승기배 ( Ki Bae Seung ) 대한내과학회 2004 대한내과학회지 Vol.67 No.-

만성질병 예방 측면에서 본 30세 이상 한국 성인의 과일과 채소 섭취 평가 : 2005년 국민건강영양조사 자료를 이용하여

권정현(Kwon Jung Hyun),심재은(Shim Jae Eun),박민경(Park Min Kyung),백희영(Paik Hee Young) 韓國營養學會 2009 Journal of Nutrition and Health Vol.42 No.2

Korean diet is high in plant foods but also high in salted vegetables. World Cancer Research Fund (WCRF) recommends consumption of fruits and vegetables excluding salted vegetables for prevention cancer. This study aimed to analyze relations between intakes of salted and non-salted vegetables and socioeconomic factors, providing a data for targeted groups in promotion of fruits and vegetables consumption. Dietary and socioeconomic status data of the 5,400 subjects over 30 years of age from the 2005 Korea National Health and Nutrition Examination Survey (KNHANESⅢ) were used. Dietary intake data from KNHANESⅢ was obtained by one day 24-hour recall method. Mean daily intakes of salted vegetables, non-salted vegetables and fruits of subjects were 151 g, 237 g, and 71 g respectively. Mean daily intake of salted vegetables was significantly higher in men than women for daily amount (173 g vs. 133 g) as well as percentage of total food intake (9.9% vs. 9.6%). Subjects living in rural area consumed more salted vegetables. Salted vegetables as percent of total food were lower in subjects with higher education levels (p < 0.001). Intakes of non-salted vegetables were significantly affected by age and gender. Intake levels of fruit were significantly higher in younger groups, in females, and subjects with higher income and education levels (p < 0.05). Average intake of fruits and nonsalted vegetables was 307 g, lower than WCRF recommended level of 400 g for personal guideline. Intake of salted vegetables was positively correlated with sodium intake (Pearson’s correlation coefficient, r = 0.43) but less so with potassium (r = 0.16) and other micronutrients intake (r < 0.1). On the other hand, non-salted vegetables had higher correlations with potassium (r = 0.45), carotene (r = 0.38), vitamin A (r = 0.37), iron (r = 0.34) and low for sodium (r = 0.13). Fruits intake was highly correlated with vitamin C intake (r = 0.46). Proportion of subjects satisfying WCRF personal guideline of fruits and non-salted vegetables was 25.7%. Results of this study indicate that intake of salted vegetable is considerably high among Koreans, and it is highly correlated with sodium intake and less so with other micronutrients.

『온병조변(溫病條辨)』에 나타난 맥진(脈診) 연구(硏究)

권정현 ( Jung Hyun Kwon ),백유상 ( You Sang Baik ) 대한한의학원전학회(구 대한원전의사학회) 2010 대한한의학원전학회지 Vol.23 No.3

Onbyeong(溫病) is called an acute epidemic febrile disease caused by warm pathogen, a major symptom of Onbyeong is high fever. Doctrine of Onbyeong is a study of an occurrence, progress and treatments of an acute epidemic febrile disease. Doctrine of Onbyeong is valid in the Cheong Dynasty at China. Now, a theory of doctrine of Onbyeong at China and Korea is being applied in not only an acute febrile disease but also many other lifestyle diseases. Onbyeongjobyeon is a book written by Oguktong(吳鞠通). Oguktong was influenced by Jangjung-gyeong(張仲景) 『Sanghanron(傷寒論)』. Oguktong had organized Seopcheonsa(葉天士)`s medical thoughts and Oguktong`s medical experiences. A Samcho(三焦) deteriorated case is divided into three groups - Upper, Middle and Lower-energizer - that is discussed of a vertical progress of Onbyeong. And a Wigiyeonghyeol(衛氣營血) deteriorated case is divided into four groups - Wi, Gi, Yeong and Hyeol - that is discussed of a horizontal progress of Onbyeong. In Korean medicine, there are four types of diagnosis which are watching, listening, asking and taking. Informations, got by four types diagnosis are synthesized and classified for medical treatments. A pulse diagnosis belongs to a method by taking a wrist among four diagnosis. A Korean Medicine doctor makes a conclusion of cause, region and condition of disease by taking a pulse. Because all organs in human body are connected by a meridian system. organs conditions are reflected in a meridian system. So by taking a pulse, a progress and a prognosis of disease is diagnosed In this thesis, by taking a pulse on 『Onbyeongjobyeon(溫病條辨)』, a location and a feature of disease`s cause with weakness and strength of a vital force are examined, and a character of a pulse diagnosis of Onbyeong is examined.