http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장경윤,박경선,최유아,김지희,전부석,허성호 이화여자대학교 의과학연구소 2012 EMJ (Ewha medical journal) Vol.35 No.1
Arterial remodeling is commonly observed in human atherosclerosis. It is a heterogeneous response ranging from positive remodeling to negative remodeling. Negative remodeling is a condition in which the vessel area decreases in size, often as a result of a structural change in the coronary vessel wall. But its contribution to myocardial ischemia in a de novo lesion has not been clearly shown. A 51-year-old female with exertional angina was admitted to our hospital. Coronary angiography was performed, revealing a severe stenosis at the middle part of the right coronary artery (RCA). Although we predilated ballooning at the middle RCA, the degree of stenosis did not improve. Thus intravascular ultrasound (IVUS) was performed. The lesion was not nearly showed plaque burden and severe negative remodeling. Though the cross-sectional narrowing percentage was significant, we decided to medical treatment for fearing coronary perforation by stenting. This case report intends to emphasize that severe coronary stenosis should be performed IVUS before the stenting. We describe a rare case with severe negative remodeling at the middle part of the RCA without atheroma plaque.
CA 19-9 상승을 동반한 전이성 골종양으로 오인된 골결핵 1예
장경윤,하경선,박경선,심은희,변재호 영남대학교 의과대학 2011 Yeungnam University Journal of Medicine Vol.28 No.2
A 73-year-old male presented a six-month history of buttock pain radiating into his thigh. The MRI revealed a large enhancing mass lesion involving the sacrum, with extension into the sacral canal. The tumor markers were measured to distinguish skeletal metastasis of carcinoma from primary bone tumor. The CA 19-9 was elevated. Despite the investigation, the primary site of cancer could not be found. Sacral bone biopsy was done. The pathologic examination revealed necrosis, chronic granulomatous inflammation, and multinucleated giant cells, consistent with tuberculosis. Sacral tuberculosis is rare in patients with no history of tuberculosis. Such solitary osteolytic lesions involving the subarticular region of large joints may mimic bone neoplasms and may be called “tuberculous pseudotumors.” This case report intends to emphasize that bone tuberculosis should be a differential diagnosis in the presence of atypical clinical and radiological features. As tuberculous lesions may be mistaken for neoplasms, a small amount of fresh tissue should be sent for culture even if clinical diagnosis of a tumor seems likely. Described herein is a case of sacral tuberculosis mimicking metastatic bone tumor with elevated CA 19-9.
테크놀로지 통합을 위한 예비 중등수학교사교육: 현황과 과제
장경윤 대한수학교육학회 2017 수학교육학연구 Vol.27 No.1
This study was designed to gain insights into investigating pre-service secondary mathematics teacher education for technology integrated curriculum. The progressive expansion of supporting system for those education in US, TPACK, teacher belief, and analysis frameworks for teacher education program were explored. A survey on the technology courses in 42 mathematics education departments was analysed. Technology courses were not opened in 1/3 of the departments because of the lack of lecturers or objection of the faculty members. Common visions as well as curriculum realignment, financial supports are required for implementing technology integrated mathematics education. 본 연구는 테크놀로지 활용 지원체계의 확대, 교사의 지식과 신념, 교사교육 프로그램의 분석 틀의 문헌연구를 기초로 국내 수학교육과의 관련 교육의 현황과 현안, 발전 방향을 탐색하였다. 강좌개설 및 운영 자료는 설문조사와 강의계획서로 수집한 결과 강의는 수업의 향상을 목적으로 하며 전체 학과의 1/3에 수학교육관련 ICT 강의가 개설되지 않았다. 테크놀로지 통합 예비 중등수학교사교육을 위하여 국가적으로 교육과정의 방향과 세부내용의 부조화, 소프트웨어와 교과서 등 지원 부족 문제 해결을 통한 교육현장 개선과 교사교육의 포괄적, 세부적 방향설정이 중요하며 무엇보다도 테크놀로지 활용 관련 비전의 공유가 필요하다.
수학전쟁의 기원과 우리나라 수학교육과정 개정 -‘중등수학교육의 문제점’과 ‘1923 Report’-
장경윤 대한수학교육학회 2014 수학교육학연구 Vol.24 No.4
This study was designed to gain insights into contemporary secondary mathematics curriculum revision in Korea. The two secondary mathematics curriculum reports submitted in the 1920s, the Kilpatrick Reports and 1923 Reports were compared and contrasted as the origin of recent math wars, and their backgrounds, committee members, viewpoints of math and math education and contents were analyzed to understand the perspectives of the two extreeme parts. Kilpatrick Reports was selected at that time, but nevertheless 1923 Report had taken a role of guiding secondary mathematics in US until the New Math era. The direction and process of mathematics curriculum revision were suggested based on the analysis of reports’ short- and long-term influences. A close examination of the curriculum revision process in US and in Korea and the implications from the results are also included in the suggestion. 본 연구는 우리나라 수학교육과정의 개정 방향과 과정에 시사점을 얻기 위하여 설계되었다. 최근 수학교육과정 개정에 나타나는 전통과 개혁, 내용과 방법 사이의 갈등을 일컫는 ‘수학전쟁’의 본질을 이해하기 위하여 이 연구는 수학전쟁의 기원이라 할 수 있는 1920년대 중등 수학교육과정에 관한 두 보고서, 일명 Kilpatrick 보고서와 1923 보고서에 주목하고, 보고서의 배경과 저자, 수학과 수학교육에 대한 관점과 보고서 내용, 그 파급 효과 등을 상세히 비교․대조하여 거시적 안목에서 교육과정 개정의 쟁점을 정리하였다. 또 Standards 중심의 개혁에 대한 최근 미국 수학전쟁의 양상, 해외 수학교육의 동향, 우리나라와 미국 수학 교육 개정 과정의 특징을 분석하였으며, 그 결과를 토대로 현재 우리나라 수학교육과정 연구와 개발에 중요하게 고려해야 할 사항과 현안 과제를 제안하였다.