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한글 철자 발달검사(Korean Developmental Spelling Assessment: KDSA)의 타당도 검증
양민화 ( Yang Min Wha ),나종민 ( Ra Jong Min ),김보배 ( Kim Bo Bae ),이애진 ( Lee Ae Jin ) 한국초등교육학회 2016 초등교육연구 Vol.29 No.4
본 연구는 초등학교 1, 2학년 학생들을 대상으로 개발한 한글 철자 발달검사의 타당도 검증을 목적으로 실시되었다. 내용타당도 검증을 위해 초등학교 1, 2학년 담임교사들을 대상으로 단어와 예문에 대한 적절성을 평가하도록 하였다. 또한 초등학교 1, 2학년 학생 1,038명을 대상으로 철자검사를 실시한 후 요인분석을 통해 구성타당도를 검증하였다. 마지막으로 초등학교 1, 2학년 학생 105명을 대상으로 KISE-BAAT의 표기영역 검사, KOLRA의 받아쓰기 검사를 실시하여 두 점수와의 상관관계 분석을 통해 공인타당도를 검증하였다. 내용타당도 분석 결과 음운유형과 형태소유형 모두 단어와 예문이 적절한 것으로 보고되었으며, 구성타당도 역시 적합도 지수들이 양호하게 나타남으로써 척도의 구성타당도가 검증되었음을 알 수 있었다. 마지막으로 KISE-BAAT의 표기영역 검사, KOLRA 검사의 받아쓰기 검사의 점수와 KDSA 점수를 비교해본 결과 음운유형과 형태소유형 모두 높은 상관관계를 보이는 것으로 나타나, KDSA의 높은 공인타당도가 검증되었다. 본 연구의 결과를 통해 KDSA는 초등학교1, 2학년 아동들의 철자능력을 측정하는 데 타당한 검사도구임이 검증되었다. This study was designed to investigate the validity of a newly developed Korean developmental spelling assessment (KDSA). KDSA is a standardized test for first and second graders. Five elementary school teachers evaluated the content validity of KDSA and the construct validity was investigated with 1,049 first and second graders using confirmatory factor analysis (CFA). Finally, the concurrent validity was assessed by comparing the KDSA score with the scores of KISE-BAAT and KOLRA spelling tests. The content validity scores were satisfactory, proving that the words and sentences are appropriate to test young students` spelling abilities. Results of model fit indices (e.g., chi-square, GFI, RMR, CFI, RMSEA) obtained from CFA showed that the construction of KDSA us solid. The relatively high correlation of the KDSA score with the KISE-BAAT and KOLRA spelling tests revealed that the concurrent validity of KDSA is appropriate. Overall, the results of the study showed that KDSA is a valid assessment to test first and second grade students`spelling abilities.
혈액 투석 중인 만성 신부전 환자에서 조영 증강 전산화 단층 촬영 후 발생한 정맥 내 공기 색전증의 1례
양민아 ( Min A Yang ),김문철 ( Mun Chul Kim ),박재우 ( Jae Woo Park ),윤현주 ( Hyun Ju Yoon ),이천범 ( Cheon Beom Lee ),김정관 ( Jeong Gwan Kim ),선인오 ( In O Sun ),이광영 ( Kwang Young Lee ) 전북대학교 의과학연구소 2013 全北醫大論文集 Vol.37 No.2
Venous air embolism (VAE) was reported in up to 23% of patients after contrastenhanced computed tomography (CT) examination; most of the emboli are small and not associated with the symptoms. In cases of small and moderate-sized emboli, most patients recovered with supportive care, including intravascular fluid infusion to increase venous pressure and venous return, oxygen therapy, and patient positioning. However, with larger emboli, VAE can be a serious and even fatal event. There have been few cases of VAE in Korea, in which patients improved with supportive treatment. We report a successfully treated case of VAE in a patient with end-stage renal disease (ESRD) on regular hemodialysis, in whom large air emboli developed after contrast-enhanced CT scan, and who experienced improvement with supportive care including cardiopulmonary resuscitation.
이성옥(Sung Ok Lee),최상진(Sang Zin Lee),양민철(Min Cheol Yang),정애경(Ae Kyung Chung),남정환(Jung Hwan Nam),이규하(Kyu Ha Lee),이종순(Chong Soon Lee),이강노(Kang Ro Lee) 대한약학회 2003 약학회지 Vol.47 No.1
The phytochemical study of Cacalia koraiensis Nakai (Compositae) led to the isolation of eight compounds, β-sitosterol (1) stifmasterol (2), phytol (3), β-sitosterol-3-0-glucopyranoside (4), adenostylol (5), campesterol (6), ger- macradien-4α-ol (7), and quercetin-3-rhamnoside (8). Their structures were established by chemical and spectroscopic methods. The cat()toxicity of the isolated compounds was evaluated by SRH assay against five cultured human tumor cell lines.
새로운 MEN1 유전자 돌연변이가 증명된 위, 십이지장, 췌장의 신경내분비종양
양민아 ( Min A Yang ),이웅기 ( Woong Ki Lee ),신홍식 ( Hong Shik Shin ),박성현 ( Sung Hyun Park ),김병선 ( Byung Sun Kim ),김지웅 ( Ji Woong Kim ),조진웅 ( Jin Woong Cho ),윤소희 ( So Hee Yun ) 대한소화기학회 2017 대한소화기학회지 Vol.69 No.3
Multiple endocrine neoplasia type 1 (MEN1) syndrome is a relatively rare disease, characterized by the occurrence of multiple endocrine tumors in the parathyroid and pituitary glands as well as the pancreas. Here, we report a case of MEN1 with neuroendocrine tumors (NETs) in the stomach, duodenum, and pancreas. A 53-year-old man visited our hospital to manage gastric NET. Five years prior to his visit, he had undergone surgery for incidental meningioma. His brother had pancreatic nodules and a history of surgery for adrenal adenoma. His brother`s daughter also had pancreatic nodules, but had not undergone surgery. The lesion was treated by endoscopic submucosal dissection and diagnosed as a grade 1 NET. Another small NET was detected in the second duodenal portion, resected by endoscopic submucosal dissection, which was also diagnosed as a grade 1 NET. During evaluation, three nodules were detected in the pancreas, and no evidence of pituitary, parathyroid tumors, or metastasis was observed. After surgery, the pancreatic lesions were diagnosed as NETs, with the same immunohistochemical patterns as those of the stomach and duodenum. Genetic testing was performed, and a heterozygous mutation was detected in the MEN1 gene, which is located on 11q13. (Korean J Gastroenterol 2017;69:181-186)
예제 기반 챗봇을 위한 기계 학습 기반의 발화 간 유사도 측정 방법
양민철(Yang, Min-Chul),이연수(Lee, Yeon-Su),임해창(Rim, Hae-Chang) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.8
예제 기반 챗봇은 사용자 발화와 가장 유사한 예제 발화를 대화 예제 데이터베이스로부터 검색하여 응답을 생성한다. 가장 유사한 발화를 찾는 것은 응답의 적절성과 직결되는 것임에도 불구하고, 유사 발화 검색을 위해 어 떠한 자질을 사용할 것인지, 어떠한 방식이 좋은 지에 대한 기존 연구는 부족하였다. 본 연구에서는 검색의 정확도 와 예제의 활용도를 높이기 위해 다양한 어휘적, 의미적 자질을 이용한 기계 학습 방법을 제안한다. 실험 결과 1) 대화 예제 데이터베이스의 활용도 2) 예제 발화의 매칭의 정확률 3) 답변의 질적인 측면에서 제안하는 방법은 기존 의 방법에 비해 더 나은 성능을 보였다. Example-based chatBot generates a response to user’s utterance by searching the most similar utterance in a collection of dialogue examples. Though finding an appropriate example is very important as it is closely related to a response quality, few studies have reported regarding what features should be considered and how to use the features for similar utterance searching. In this paper, we propose a machine learning framework which uses various linguistic features. Experimental results show that simultaneously using both semantic features and lexical features significantly improves the performance, compared to conventional approaches, in terms of 1) the utilization of example database, 2) precision of example matching, and 3) the quality of responses.
치주건강에 대한 주관적 인식과 현존영구치수와의 관련성에 관한 연구
양민철 ( Min Cheol Yang ),조아영 ( A Young Jo ),이병진 ( Byoung Jin Lee ),김병옥 ( Byung Ock Kim ) 조선대학교 구강생물학연구소 2012 Oral Biology Research (Oral Biol Res) Vol.36 No.2
Purpose: periodontal health index is a dentist-centered index in which dentists perform examination and evaluation. Therefore, it is not appropriate for evaluation subjective symptoms and satisfaction levels of patients. To compensate for this shortcoming, we made use of a subjective index of periodontal health status with which patients can evaluate their oral health status. This research evaluated the usefulness of Periodontal age index in examining subjective consciousness of periodontal health status, estimated the number of existing permanent teeth, which is the objective index for oral health, and compared the relationships between them. Materials and Methods: The number of subjects was 2,198, consisting of 1,115 (50.7%) men and 1.083 (49.7%) women. The periodontal age increased in the 18-24 and 40-44 age groups. There were no significant differences between the 40-44 and 55-59 age groups. Further, periodontal age decreased in those aged over 60-64. Results: In this study, periodontal age index increased to age 40 when teeth are lost to periodontal disease and decreased with a decline in the number of permanent teeth. Conclusion: Therefore, the periodontal age index reflects the periodontal state rather than hypofunction by tooth loss.