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최병도,현철상,정진욱,김동학,김욱현,김종근,Choi Byung-Do,Hyun Chul-Sang,Jung Jin-Uk,Kim Dong-Hak,Kim Wook-Hyun,Kim Chong-Gun 한국정보처리학회 2005 정보처리학회논문지 A Vol.12 No.2
웹 기반 원격교육 환경의 발전이 꾸준히 이루어지고 있다. 그러나 원격교육 환경에서 교육미디어 자체의 발전에 비해 학습자의 학습효과에 대한 연구는 아직 미약하다. 현재 대부분의 원격강의 시스템에서 학습평가를 위해 온라인 혹은 오프라인을 통한 중간, 기말 시험 등에 주로 의존하기 때문에 원격강의에서 학습효과의 평가는 한계를 보여주고 있다. 원격강의는 시공간의 제약을 받지 않는다는 장점이 있는 반면 학습평가에 있어 학습자들의 실제 학습태도나 학습효과를 평가하는 방법이 제한적이라는 단점도 있다. 원격강의에서 학습자의 성실한 학습태도는 학습효과를 높이는 중요한 요소이다. 본 연구에서는 가상강의에서 학습자의 학습태도를 실시간으로 평가하고 피드백해 주어 학습효과를 높이는 방안을 제안한다. 또한 실험 시스템을 구축하여 효과 및 가능성을 확인한다. The development of web-based distance education surroundings is steadily achieving. However the studying on the learning effect of learners is still weak against development of educational media itself. At present, most of the distance education system is showing limits in the evaluation of the learning effect because the teaming evaluation depends on mid or final-term exams by on-line or off-line. There is a strong point that the distance education is free from space and time. One of present weak points is limitation of evaluating learner's attitude which can estimate learning effects. Earnest teaming attitude at distance education is important factor for improving the learning effects. In this paper, we propose a model for improving the teaming effects by forcing real-time evaluation and returning feedback to learners at the cyber lectures. The developed experimental system is verified its possibilities.
김욱현,문기혁,송윤섭,박영호 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Superficial venous thrombosis of the chest wall was first described by Mondor in 1939. Braun-Falco reported in 1955 superficial penile vein involvement in diffuse thrombophlebitis of the abdominal wall and in 1958 Helm and Hodge first described isolated superficial dorsal penile vein thrombosis. Since then, fewer than 50 cases have been reported. The clinical presentation is usually redness and swelling of the dorsum of the penis, accompanied by a palpable, tender thrombotic vein. This acute and painful disease frightens the patients, who is concerned about his fertility and sexual function. The main cause of this disease is frequent sexual intercourse. Diagnosis is based upon anamnesis, physical examination and penile sonography with color Doppler imaging. It is usually a benign disease which resolves quickly under appropriate medical therapy. We present a man who was visited for this condition and was conservatively treated.
한병규,김욱현,문기혁,송윤섭,박영호 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Renal artery thrombosis may result from external trauma of a blunt nature. Such injury is induced by rapid deceleration resulting in the stretching of the renal vasculature, disruption of the arterial intima-the least elastic layer of the arterial wall and eventual thrombosis. The treatment of renal artery thrombosis is controversial, with physician's options divided between prompt surgical exploration with vascular repair and clinical observation. We experienced 1 case of traumatic renal artery thrombosis and report that with a brief review of the literature.