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배재동,민병무,김진석 한국자료분석학회 2009 Journal of the Korean Data Analysis Society Vol.11 No.3
The departments of science and engineering at local universities are faced with risk of the abolition due to decreasing the size of students and the avoidance of science and engineering. In spite of the government's efforts, it is difficult to overcome it. Therefore, the efforts of department must be parallel, which can be obtained through students' friendship network analysis. In social network analysis, for evaluating actor's importance, we often use the centrality measures such as degree, closeness, betweenness, and eigen vector centrality. We construct students' network through the survey for degree of their friendship. We perform centrality analysis in this students' friendship network, and evaluate whether the leader group have played their roles within students' society via centrality measures. Based on this analysis, we also suggest some strategic uses of students with high centralities. 현재 지방대학의 이공계열 학과는 학생수의 감소, 이공계의 기피현상 등으로 인하여 생존의 기로에 처해있으며 정부의 많은 노력에도 불구하고 이를 극복하기에는 역부족인 상황이다. 따라서 이와 별도로 학과 차원의 대책이 병행되어야 하며, 학생들간의 친밀도 네트워크를 분석하는 것이 하나의 대안마련을 위한 초석이 될 수 있다. 네트워크의 중심성 분석은 사회네트워크에서 구성원의 중요도를 평가하는 방법이다. 네트워크의 중심성을 측정하는 방법으로 연결정도 중심성, 근접 중심성, 매개 중심성, 그리고 고유벡터 중심성과 같은 다양한 측도들이 있으며 그들이 갖는 의미도 각각 다르다. 본 연구에서는 설문조사를 통하여 학생들 간의 친밀도 네트워크를 구축하였고, 여기서 여러 가지 중심성 측도들을 측정, 분석하였다. 이를 통하여 학생 조직에서 중요한 역할을 담당하는 구성원들을 탐색하였으며, 학생 커뮤니티에서 리더군들의 조직 내에서의 위상 혹은 역할 수행 실태를 평가하였다. 또한 친밀도 네트워크의 중심성 분석을 통해 탐색된 구성원들에 대한 전략적인 활용방안을 제시하였다.
김순일,박철재,배수동,윤대성,천재동,조지웅,박찬흔 대한소화기학회 1992 대한소화기학회지 Vol.24 No.4
It has been the impressions of many clinicinas in Korea that diverticular disease of the colon appears to be increasing in incidence as the life style of Korean populations is being westernized in the recent few decades. Therefore we should be always aware of this condition when we are dealing with the patients with abdominal pain particularly when it is right sided. The main difference between diverticulosis of oriental and western population is its common location. We found that in our series of 54 cases of colonic diverticulosis, the vast majority of the patients were found to have diverticulums in the right colon whereas in western population most common site is sigmoid colon. The majority of the patients presented with vague abdominal discomfort of recurrent nature and when it is right sided, the most of the cases were refered to us with tentative diagnosis of acute or chronic appendicitis. The complications of diverticulosis were varied and consisted of 4 cases of pericolic abscess, 2 cases of flank perforation, colonic obstruction most frequently done was right hemicolectomy 11 cases followed by excision of diverticulum individually 5 cases. There was no morality.
이승락(Seung Rak Lee),배수동(Soo Tong Pai),김주섭(Joo Seop Kim),천재동(Jae Dong Cheon) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.1
N/A We experienced twenty-one patients of esophageal cancer from march 1987 to october 1992. The age ranged from 27 to 74 years old and male patients were twenty. The most common symptom was dysphagia (90.0%) and the most frequent site was midesophagus (52.4%). 15 patients were managed with curative resection and 6 patients with feeding jejunastomy or gastrostomy. The histologic types were squamous cell carcinoma in 20 patients and adenocsarcinoma in one patient. Among 15 patients with curative resection, stage I was found only in 1 patiient, stage II in 7 patients and stage III in 7 patients. Postoperative complications occurred in 7 patients (33. 3%). Among them, passage diturbance developed in 3 patients, and pleural effusion and pneumonia in 3 patients. 12 patients expirecl during follow-up period. Mean survival was 7.6 months in 12 expired patiennt, 14.3 months in curative resection group and 2.2 months in nonresected group. One year survival rate was 53.5% in resected group but 0% in nonresected group.