진단방사선과학 교육과정 개선에 관한 연구

김기황(Ki-Hwang Kim),김선(Sun Kim),이종두(Jong-Doo Lee),유영훈(Young-Hun Yoo) 한국의학교육학회 1999 Korean journal of medical education Vol.11 No.1

If large-scale testing programs are being used, OSCE stations may be duplicated into two or more sites. There are a few studies on the reliability of OSCE with duplicated stations in Korea. The purpose of this study was to investigate the effect of duplication on the reliability of OSCE. At Hanyang university college of medicine, an OSCE is given to all senior medical students(91 per class) upon completion of all clinical clerkship rotations. The examination consisted of twenty one stations and eighteen cases that represented commonly encountered problems in primary care. Each station required seven minutes for its administration, with 6 to 6.5 minutes for the student-SP or model encounter, during which the students performs a complete focused history and/or physical examination and/or procedure and/or management, and another 0.5 to 1 minutes for the evaluator to feedback case-related comments. We analysed the reliability of duplication by comparing total OSCE scores and case scores between two exam sites. We also evaluated the reliability of duplicated stations from student s and professor s subjective response to the OSCE. All 91 fourth-year students attended the OSCE. Standardized Cronbach coefficient of the OSCE was 0.67. The station scores and OSCE total scores were different between two duplication sites. The total OSCE score of one site was slight higher than that of the other site(p=0.03). Of total 19 stations in which students were evaluated by staff evaluator, six stations are more advantageous to one part compared with counterpart stations, other six stations are vice CONCLUSIONS: OSCE reliability can be affected by duplication of examination sites and inter-rater reliability is the most important determining factor. The results demonstrate a need for caution in the interpretation of scores obtained from OSCE with duplicated stations. 의학교육은 임상과목의 경우 핵심적으로 강의와 임상실습으로 나누어져 있다고 할 수 있다. 따라서 효율적인 의학교육을 실시하기 위해서는 강의와 임상실습이 균형을 이루어야 하며, 체계적으로 진행되어야 한다. 이를 위해서는 각과의 강의 및 임상실습이 어떻게 실시되고 있으며, 이에 대하여 교육에 관련되어 있는 교수, 학생 및 전공의들은 어떠한 의견을 갖고 있는지를 파악하여, 문제점을 도출해내고,적절한 개선점을 찾아내야 할 것이다. 따라서 본 연구는 진단방사선과의 교육과정의 실태를 파악하고, 교수, 전공의 및 학생들의 의견을 수렴하여, 질적인 차원에서 수준 높은 교육을 제공하고자 그 개선점을 찾아 제언하려 한다. 본 연구결과를 기초로 진단방사선과의 강의와 임상교육에서의 문제점을 밝히고, 제안점을 시사하는 핵심적인 내용을 중심으로 종합하면 다음과 같다. (1) 수업자체는 성공하였으나 수업목표는 달성하지 못하였다는 의견이 교수 43.3%, 전공의 70.6%, 학생 69.4%로 수업목표 달성이 안되고 있다는 반응이었다. (2) 수업목표를 달성하지 못한 이유를 종합하면, 짧은 수업시간에 너무 많은 학습 목표가 제시되고 있기 때문인 것으로 밝혀졌다. (3) 학생들은 주로 시험에 대비하여 수업을 준비하는 것으로 나타나 분산학습보다는 집중학습을 더 선호하는 것으로 나타났다. (4) 수업은 주로 교수가 이끌고, 학생의 참여가 약간 있거나 혹은 거의 없다는 응답이 절대적이다. (5) 진단방사선과의 특수성에 의하여 수업은 시청각 매체, 즉 슬라이드 강의가 주로 이루어지고 있다. (6) 소집단을 중심으로 진행되는 문제중심학습(problem-based learning)은 학습에 매우 효과적인 것으로 나타났다. (7) 임상실습 교육이 체계적이지 못한 이유는 임상실습 교육을 전담 할 교수가 없기 때문인 것이 가장 큰 문제로 지적되었고, 실습일정이 불규칙하기 때문이라는 지적도 적지 않게 제시되었다. (8) 학생들의 임상실습에 참여는 판독, procedure등의 실질적인 참여는 거의 없고, 단순히 관찰만을 주로 하는 것으로 나타났다. (9) 임상실습중 학생들은 전공의들에게 가장 많은 것을 배웠다.

텃밭을 이용한 도시농업의 활성화방안

강기남 ( Ki Nam Kang ),이종근 ( Jong Kun Lee ),김기황 ( Kee Hwang Kim ),이만형 ( Man Hyung Lee ) 충북대학교 건설기술연구소 2007 建設技術論文集 Vol.26 No.1

원자력발전소 필수디지털자산에 대한 효율적인 보안조치 적용에 관한 연구

차기종(Ki-Jong Cha),노재희(Jae-Hee Roh),김기황(Ki-Hwang Kim),채명은(Myoung-Eun Chae) 대한전기학회 2017 정보 및 제어 심포지엄 논문집 Vol.2017 No.10

대망에 발생한 원발성 평활근육종

이상인(Sang In Lee),김기황(Ki Hwang Kim),남수연(Su Youn Nam),박효진(Hyo Jin Pack),이희대(Hee Dai Lee),정우희(Woo Hee Jung) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.5

Although the greater omentum is frequently the site of metastatic neoplasm, primary omental tumors are exeedingly rare. The authors report here, a case of primary omental leiomyosarcoma presented initially as a palpable abdominal mass and epigastic discomfort for one year in a 66 year-old rnale patient. At laparotomy, 21*15*2.5 cm rnass weighing 600 gram was found in the omentum which was adherent to the anterior wall of the lower body of the stomach and liver surface. In the histologic findings presence of tumor necrosis, increased cellularity, cellular atypia and pleomorphism as well as large size of mass were indicative of leiomyosarcoma. Surg cal resection has been known to be the principle treatment for this disease, In this case, excision of the tumor with omentectomy, radical subtotal gastrectomy and wedge resection of the liver were performed. Eight months later, a recurrence was detected and chemotherapy with doxorubicin, dacarhazine, vincris- tine, and cyclophosphamide was done.

고립성 비정맥 혈전증 4예

김병철 ( Byung Chul Kim ),박종훈 ( Chong Hoon Park ),김경희 ( Kyung Hee Kim ),문영명 ( Young Myoung Moon ),이관식 ( Kwan Sik Lee ),권준 ( June Kwan ),김기황 ( Ki Hwang Kim ) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.2

N/A Splenic vein thrombosis is an infrequently recognized and rarely reported form of extrahepatic venous obstruction. It is clinically important because splenic vein thrombosis may cause segmental spleno-portal hypertention and the subsequent development of variceal bleeding. Clinical manifestation is similar to those of generalized portal hypertention, but the proper treatment is a splenctomy rather than a shunt. It should be suspected in every patient who presents with variceal bleeding in the absence of signs of liver disease and preoperatively the diagnosis is readily established by angiography. Wide use of angiography and abdominal CT has lead to a steady increase in the number of reported cases of asymptomatic as well as symptomatic splenic vein thrombosis. The puropose of this report is to review our experience of 4 patients of splenic vein thrombosis, and to discuss the diagnosis and therapeutic aspects of symptomatic as well as asysmptomatic form of this syndrome.

입방체형 삼축시험에 의한 다짐화강토의 전단강도 특성

정진섭 ( Jeong Jin Scob ),김찬기 ( Kim Chan Kee ),박승해 ( Park Seung Hae ),김기황 ( Kim Ki Hwang ) 한국농공학회 1996 韓國農工學會誌 : 전원과 자원 Vol.38 No.6

The three-dimensional strength behavior of compacted decomposed granite soil was studied using cubical triaxial tests with independent control of the three principal stresses. All specimens were loaded under conditions of principal stress direction fixed and aligned with the directions of compacted plane. For comparable test conditions, the major principal strain and volume strain to failure were smallest when the major principal stress acted perpendicular to the compacted plane. The opposite extremes were obtained when the major principal stress acted parallel to the compacted plane. In cubical triaxial tests with same b values and with θ values in one of three sectors of the octahedral plane, independent of the range of θ, higher friction angles are obtained in tests with b greater than in triaxial compression tests in which b=0.0, Comparison between the results of the drained cubical triaxial tests on lksan compacted decomposed granite soil and the cross section of the Mohr-Coulomb failure surface as well as the cross section of the Mohr-Coulomb failure surface were made. Lade's isotropic failure criterion based on vertical specimens overestimates the strengths for tests performed with values of θ between 90˚ and 1 50˚ the Mohr-Coulomb criterion generally underestimates the strengths of tests performed with values of θ between 0˚ and 180˚ except around the 120˚.

원전 사이버보안 규제기준을 적용한 네트워크 침입 탐지 시스템 개발

노재희(Jae-Hee Roh),차기종(Ki-Jong Cha),이석기(Seok-Ki Lee),김기황(Ki-Hwang Kim),채명은(Myoung-Eun Chae) 대한전기학회 2017 정보 및 제어 심포지엄 논문집 Vol.2017 No.10

후복막강에 발생한 Castleman병

서정건(Jung Kun Seo),정준근(Jun Keun Jung),정준표(Jun Pyo Chung),박효진(Hyo Jin Park),전재윤(Chae Yoon Chon),지훈(Hoon Ji),김기황(Ki Hwang Kim),지훈상(Hoon Sang Chi),정우희(Woo Hee Jung) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.3

Castlemans disease is a rare, benign disorder of the lymphoid tissue, and refers ta a distinctive type of giant lymphoid hyperplasia that forms tumor-like masses in lymph nodes and, occasionally, in extranodal sites. Although the mediastinum is its the most common location, it also occurs, albeit rare, in other areas of the body, where lymph nodes are normally found. It is difficult to differentiate between Castlernans disease and other malignant lesions preoperatively. We report a case of a hyaline-vascular variant of Castlemans disease presenting as a solitary retroperitoneal mass in a 39 year old female patient. We also present the MR features, together with conventional radiologic imagings, which made it possible to diagnose Castlemans disease preoperatively, although the mass of the patient was in an unusual location, This report may provide information on differentiation between primary retroperitoneal malignancies and Castlemans disease. (Korean J Gastroenterol 1996; 28:462-468)

Cap 구성모델을 利用한 軟弱粘土 非排水 擧動解析

정진섭,김기황 圓光大學校 1995 論文集 Vol.30 No.2

본 연구에서는 지금까지 이론 위주로 연구되어온 Cap 모델을 실제 지반거동해석에 적용하기 위한 시도로서 연약 점토의 비배수거동해석을 실시한 것이다. 시료는 영산강 하류에서 채취한 무안점토를 재성형하여 등방압밀 팽창시험과 압밀비배수 삼축압축시험을 하여 Cap모델에 필요한 토질매개변수를 결정하였다. Cap모델의 예측능력을 평가하기 위하여 비배수 거동해석을 위한 프로그램을 개발하였고, 그 개발 프로그램으로 구한 예측값과 무안점토의 삼축압축시험결과를 비교 하였다. 또한 Cap모델 각각의 토질매개변수가 응력-변형율 및 간극수압의 거동에 미치는 영향을 밝히기 위하여 결정된 매개변수 값에 20%를 가감 응력-변형율 관계를 수치해석하여 토질매개변수의 예민도를 알아 보았다. The aim of the work described in this paper is to investigate predition ability of undrained behavior for mooan soft clay using the cap model based on plasticity theory. The specimen employed was sampled at Mooan near the down stream of young San river and remolded into consolidation apparatus. A simple procedure relating the cap model parameters to those data commonly available from soil tests is proposed. The variation of the parameters under undrained triaxial compression condition is performed to show the sensitivity of the parameter variation on the stress-strain relation, pore pressure. Numerical analysis to predict the undrained behavior is performed to verity prediction ability of the cap model and compared observed values for mooan clay.

복숭아심식나방(Carposina niponesis Walsingham)의 發育에 미치는 溫度의 影響에 關한 硏究

李昌喜,玄在善,金基滉 서울大學校 農科大學 1982 서울대농학연구지 Vol.7 No.2

The peach fruit moth, Carposina niponensis Walsingham, was reared under verious temperatures; 20℃, 25℃, 30℃, and room condition. The effect of the rearing temperatures on the development were examined. The results obtained are as follows: 1. The seasonal change of the damaged fruits of apple was examined. The damaged fruits increased greatly in August, when the number of apple fruits had stabllized. It seemed to have two generations in an year in Suweon area according to the seasonal change of the damaged fruits. 2. The adult longevity of peach fruit moth decreased at high temperatures, and ovipositional periods were shorter at 30℃ compared with the lower temperatures tested, suggesting that such a high temperature hasten the sexual maturity of the adult. The longevity of the female was longer than that of the male. 3. No significant effects of the temperatures on the number of eggs laid by a female were observed in the temperature range from 20℃ to 30℃, and they were ranged 85∼170 eggs. 4. The median of days required for the completion of the various life stages were 6.9∼12.1 days for eggs, 15.8∼26.0 days for larvae, and 11.3∼20.0 daus for pupae, depending on the rearing temperatures. The velocity of development in eggs and larvae increased linearly at temperature range from 20℃ to 30℃, while there seemed to be slight retardation of development for the pupae at 20℃. The velocity of development was greater with higher temperatures. 5. The calculated developmental threshold temperatures were 6.6℃ for eggs, 5.4℃ for larvae, and 6.4℃ for pupae, and overall developmental threshold temperature was estimated as 60℃. 6. The estimated values of the total effective temperatures were 150∼170 day degrees for pupae, and overall total effective temperature would be 790∼850 day degrees based on the overall threshold temperature of 6℃. 7. A predietion formula was suggested as Y=-2.419X+105.257, where Y: Number of days required to complete a life cycle. X: Temperature treated, based on the total effective temperature.