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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)
김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3
Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.
알루미늄과 헤테로폴리산으로 개질된 메조포러스 실리카 상에서의 AKD 합성
김현국,우창수,최재석,박민태,이병민,이호인 한국공업화학회 2003 응용화학 Vol.7 No.1
AKD(alkyl ketene dimer) used widely as a neutral sizing agent is produced industrially by halogenization of stearic acid followed by dimerization of alkyl ketene. In the present work, to suppress the byproduct of hydrochloric acid and to improve reaction pathway. AKD was prepared through of ketene intermediate by dehydration of stearic acid in gas phase using reaction with silanol on silica as active sites of the catalyst SBA-15 showed the highest activity due to the large and open tubular pores. It was found that main products were dimer and trimer. Our goal of the present work was to increase of the selectivity for the dimer.
Productivity S/W 학습용 웹 코스웨어에서 상황맥락적 오류교정 패드백이 학업성취도에 미치는 영향
김도윤,배영권,백장현,이태욱 한국컴퓨터교육학회 2004 컴퓨터교육학회 논문지 Vol.7 No.1
현재 웹 코스웨어에서의 형성평가와 이에 대한 피드백 시스템은 많이 구축되어 있다. 그러나 대부분 웹 코스웨어의 형성평가와 사용자 반응에 따라 제공되는 피드백은 실제의 문제 상황과 거리가 먼 상태에서 단순한 텍스트 형태로 정오의 표시, 정답 표시, 관련 정보의 표시 등을 제공하고 있다. 이는 자칫 피드백의 교정적 기능을 약화시켜 학습자의 학습 내용에 대한 이해와 학습 전이의 가능성을 감소시킬 수 있다. 또한 구성주의 학습이론에 따르면 학습은 그 것이 발생하는 상황에 영향을 받고 지식이 어떤 맥락에서 학습했느냐에 따라 다르게 학습되며 전이된다고 한다. 이런 배경에서 본 연구는 웹 코스웨어에서 형성평가를 실시할 때 학습자의 반응에 따라 피드백을 문제 상황과 밀접하고 유사하게 상황맥락적으로 제시할 수 있는 상황맥락적 오류고정 피드백시스템을 설계하고 구현하였다. 그리고 실제 Productivity S/W를 학습할 수 있는 웹 코스웨어에 ‘정오/정답제공형 피드백', ‘관련정보제공형 피드백’‘상황맥락적 오류교정 피드백’을 적용한 후 ‘상황맥락적 오류교정 피드백’이 학업 성취에 있어서 다른 두 가지 유형의 피드백보다 더 효과적인지를 검증하였다. Today there are many Web courseware systems for formative evaluation and feedback. Formative evaluation and feedback provided according to users’ response in most Web courseware systems, however, are simple texts showing only whether correct or wrong, correct answers, relevant information, etc., far deviated from actual context. Thus such a system may weaken the corrective function of feedback and, as a result, reduce learners’ understanding of contents and the possibility of leaming transfer. In addition, according to the learning theory of constructivism, learning is influenced by the situation, in which it happens, and knowledge is learned and transferred differently depending on the context in which it is learned. In the background, this study designed and implemented a contextual error-correction feedback system that can provide feedback in a context closely related and similar to the relevant situation according to the response of learners when formative evaluation is carried out in Web courseware. In addition, it applied ‘correction/correct-answer-providing feedback’, ‘relevant information providing feedback’ and ‘contextual error-correction feedback’ to Web courseware for learning actual productivity S/W and verified if ‘contextual error-correction feedback’ is more effective than other two types of feedback for learners’ academic achievement.
김현태,이상무,어수택,박춘식,정성환,허승재,남충희,강창희,김용훈 순천향대학교 1994 논문집 Vol.17 No.4
We analysed 404 patients with primary lung carcinoma who were treated at Soonchunhyang University Hospital from July, 1985 to september, 1993 in order to investigate the survival rate and epidemiolgical properties of primary lung cancer. They were 330 males and 74 females. The most prevalent decade was seventh. In terms of cell type, the squamous cell was 225 patients (55%), and adenocarcinoma, small cell, mixed type was 21%, 19%, 4%, respectively. Among non-small cell lung carcinoma, stage Ⅲa was the most prevalent one(92%). In case of small cell carcinoma, the limited stage was 64%. The 12-, 24-, 36- month survival rate of total patients was 57%, 31%, 22%, respectivley and median sruvival time was 15 months. The 36-month survival rate tended to be longer in non-small cell lung carcinoma than that of small cell lung cancer, but there was no difference between two groups, statistically. In non-small cell carcinoma, The 36-month survival rate and meidan survival time were longer in the stage Ⅰ and Ⅱ than those of Ⅲa, Ⅲb, Ⅳ (80% versus 38%, 22%, 0%, p<0.05). According to involvement of lymph node, the 36-month survival rate was longer in NO and N1 than those of N2, N3 (61.9%, 48.7% versus 17.7%, 17.3%, p<0.05). In small cell carcinoma, The 36-month survival rate and median survival rate were higher and longer in limited stage than those of extensive stage(16.1% and 13 month vs 10% and 8 month, p<0.05). In conclusion, we report here the incidence of primary lung carcinoma and the survival rate of paients with primary lung carcinoma who were treated in Soonchunhyang University Hospital.