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최시원 연세대학교 대학원 1987 延世論叢 Vol.23 No.1
This study was intended to introduce the current international trends of music education to Korea, because 1986 is the year of curriculum revision in Korea. During the course of the music curriculum revision process, to which the author participated, the need of study on the new trends of music education to get assists in forming our own philosophy, method, direction and ideas was strongly felt. After the American's shock by the launching of Russian Sputnik I, in 1957, they had faced the greatest challenge of their education revision. Since then there has been a series of development in music education environment. The first administered project was the Contemporary Music Project for Creativity in Music Education which began in 1959. Next, the Yale Seminar was held at Yale University in 1963 under the sponsorship of the U.S. Office of Education. The objective of the Seminar was to examine ways of improving elementary and secondary music education. Its recommendations reinforced the academic approach and spurred the Juilliard Repertory. The Tanglewood Symposium was held under the direction of Robert A. Choate, Professor of Boston University, at Tanglewood, Massachusetts in 1967. Among the major changes advocated by the Tanglewood Symposium were the teaching of music of all types, forms, styles, periods and cultures, programs to meet the needs of the general student who has been largely omitted from music education at the secondary level. The Tanglewood Declaration is the well defined direction and the philosophy for the future music education in America.
최시원,김수동,Choi, Si-Won,Kim, Soo-Dong 한국정보처리학회 2004 정보처리학회논문지D Vol.11 No.1
소프트웨어 개발 생산성 향상과 유지 보수성 향상을 위한 객체지향 분석 및 설계는 학계와 산업계의 기본적인 패러다임으로 자리 잡고 있다. Enterprise Java Beans(EJB)는 높은 이식성을 제공하고 신속한 어플리케이션 개발 환경을 제공하기 때문에, 널리 사용되는 플랫폼중 하나 이다. EJB 객체지향 패러다임을 지원하지만, 객체지향 모델을 EJB 모델로 상세 설계 및 구현 할 때 고려할 사항들이 있다. 그 중 한 가지가 상속 문제이다. 본 논문에서는 객체지향 모델에서 나타날 수 있는 클래스 상속의 유형을 세 가지로 분류하고, 상속을 EJB 모델로 구현할 때 나타날 수 있는 문제점을 규명하며 상속을 지원하는 세 가지 패턴을 제시한다. 또한 제안된 패턴들에 대해서 객체지향 상속 유형별로 적용 가능한 패턴들과 지침을 제시한다. Software development methodology using object-oriented analysis and design techniques for improving productivity and maintainability has acquired a substantial acceptance in both academia and industry as a fundamental paradigm. Enterprise Java Beans (EJB) is widely used in both academia and industry because it provides high unability and rapid application development. EJB supports object-oriented paradigm, but there are several things to consider when designing detail model of object-oriented model or implementing object-oriented model with EJB model. One of them is inheritance problem. In this paper, we classify the types of class inheritance which is shown upon in object-oriented model into three types and identify the problems which can happen when implementing the inheritance mechanism with EJB model. And this paper proposes three patterns for realizing the inheritance in EJB. Moreover, applicable patterns and guidelines for each object-oriented inheritance types for the proposed patterns are suggested.
A Healthcare-Associated Outbreak of HCV Genotype 2a at a Clinic in Seoul
최시원,Lee Hyerim,Lee Hyungmin,Chung Yoon-Seok 질병관리본부 2021 Osong Public Health and Research Persptectives Vol.12 No.1
Objectives An epidemiological investigation was conducted into a hepatitis C virus (HCV) outbreak at an outpatients clinic in Seoul (2011–2012). The aim of the study was to analyze the scale of infection, identify the source of infection, and route of transmission to prevent hepatitis C transmission in the future. Methods A retrospective study of the outpatients and health care workers (n = 7,285) in the target outpatient clinic during 2011–2012 was conducted. The history of the study population infection with hepatitis C, electronic medical records, field visits, and health care worker interviews were examined for the period between March 1st, 2006 and March 25th, 2016. The blood samples were collected and tested for anti-HCV antibodies, HCV RNA and HCV gene in 2016. Results The rate of anti-HCV positive results was 4.4% in the study population. The risk factors associated with an anti-HCV positive result were ≥ 10 clinic visits, and receiving an invasive procedure including a nerve block and a block of the peripheral branch of the spinal nerve (p < 0.05). There were 112 HCV RNA positive cases out of 320 anti-HCV positive test result cases, amongst which 100 cases had the dominant HCV genotype 2a which formed either 1 cluster (n = 56) or 2 clusters (n = 25). This result indicated exposure to a high-association infection source. Conclusion Anti-HCV antibodies and genotypic analysis showed an epidemiological association between the outbreak of HCV and invasive procedures performed (2011–2012) at an outpatients clinic in Seoul.