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학습 컨텐트 관리 시스템 기반의 코스개발 도구에 대한 연구
구은희(Eunhee Koo),김행곤(Haengkon Kim),현창문(Chang-Moon Hyun),김성원(Soung-Won Kim) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.1A
기존의 LMS(Learning Management System)는 학습자의 의도와 무관하게 처음부터 끝까지 모든 교육내용을 모두 학습하게 구성됨으로써 온라인 교육의 목표인 언제 어디서든 이라는 원칙이 구현되지 못하고 있다. 또한 학습자가 요구하는 내용으로 수정 및 보완이 용이하지 않고, 개발 시간이 느리고 비용이 많이 소요된다. 따라서 학습자 요구에 맞는 교육컨텐트를 개발하려면 LCMS(Learning Content Management System)기반으로 교육코스를 개발하는 저작도구가 필수적이다. 본 논문에서는 학습자 요구에 맞는 교육과정을 개발하고, 교육의 효율성을 극대화 시키는 방법으로 학습객체 단위로 CDT-L(Course Development Tool-Learning Content Management System)을 개발하고자 한다. 또한 다른 객체와의 관계등을 생성함으로써 학습자에게 꼭 필요한 정보를 찾을 수 있도록 해주어 이를 통해 학습자 중심의 학습을 가능케 한다. 학습자의 특성을 고려한 맞춤식 교육 코스 구성으로 앞으로는 자신이 원하는 과정을 선택하고 학습자에게 맞는 코스 강의로 강의가 이뤄지는 것을 가능하게 하기위해 코스와 학습객체에 대한 메타데이터를 표준 문서인 SCORM 1.2에 기반하여 정의한다. 정보를 가지고 있는 학습객체를 선택하여 파일과 정보를 저장한 식별하기 위하여 검색을 한다. CDT-L의 구현을 통해 컨텐트 재활용도를 높이면서 교육과정의 개발시간과 비용을 줄일 수 있다.
Koo, Bo Kyung,Chae, Sehyun,Kim, Kristine M.,Kang, Min Jueng,Kim, Eunhee G.,Kwak, Soo Heon,Jung, Hye Seung,Cho, Young Min,Choi, Sung Hee,Park, Young Joo,Shin, Choong Ho,Jang, Hak C.,Shin, Chan Soo,Hwan American Diabetes Association 2014 Diabetes Vol.63 No.9
<P>Autoantibodies can facilitate diagnostic and therapeutic means for type 1 diabetes (T1DM). We profiled autoantibodies from serum samples of 16 T1DM patients, 16 type 2 diabetic (T2DM) patients, and 27 healthy control subjects with normal glucose tolerance (NGT) by using protein microarrays containing 9,480 proteins. Two novel autoantibodies, anti-EEF1A1 and anti-UBE2L3, were selected from microarrays followed by immunofluorescence staining of pancreas. We then tested the validity of the candidates by ELISA in two independent test cohorts: <I>1</I>) 95 adults with T1DM, 49 with T2DM, 11 with latent autoimmune diabetes in adults (LADA), 20 with Graves disease, and 66 with NGT and <I>2</I>) 33 children with T1DM and 34 healthy children. Concentrations of these autoantibodies were significantly higher in T1DM patients than in NGT and T2DM subjects (<I>P</I> < 0.01), which was also confirmed in the test cohort of children (<I>P</I> < 0.05). Prevalence of anti-EEF1A1 and anti-UBE2L3 antibodies was 29.5% and 35.8% in T1DM, respectively. Of note, 40.9% of T1DM patients who lack anti-GAD antibodies (GADA) had anti-EEF1A1 and/or anti-UBE2L3 antibodies. These were also detected in patients with fulminant T1DM but not LADA. Our approach identified autoantibodies that can provide a new dimension of information indicative of T1DM independent of GADA and new insights into diagnosis and classification of T1DM.</P>
Kim, Eunhee G.,Kwak, Soo Heon,Hwang, Daehee,Yi, Eugene C.,Park, Kyong Soo,Koo, Bo Kyung,Kim, Kristine M. Korean Diabetes Association 2016 Diabetes and Metabolism Journal Vol.40 No.2
<P><B>Background</B></P><P>The prevalence of novel type 1 diabetes mellitus (T1DM) antibodies targeting eukaryote translation elongation factor 1 alpha 1 autoantibody (EEF1A1-AAb) and ubiquitin-conjugating enzyme 2L3 autoantibody (UBE2L3-AAb) has been shown to be negatively correlated with age in T1DM subjects. Therefore, we aimed to investigate whether age affects the levels of these two antibodies in nondiabetic subjects.</P><P><B>Methods</B></P><P>EEF1A1-AAb and UBE2L3-AAb levels in nondiabetic control subjects (<I>n</I>=150) and T1DM subjects (<I>n</I>=101) in various ranges of age (18 to 69 years) were measured using an enzyme-linked immunosorbent assay. The cutoff point for the presence of each autoantibody was determined based on control subjects using the formula: [mean absorbance+3×standard deviation].</P><P><B>Results</B></P><P>In nondiabetic subjects, there were no significant correlations between age and EEF1A1-AAb and UBE2L3-AAb levels. However, there was wide variation in EEF1A1-AAb and UBE2L3-AAb levels among control subjects <40 years old; the prevalence of both EEF1A1-AAb and UBE2L3-AAb in these subjects was 4.4%. When using cutoff points determined from the control subjects <40 years old, the prevalence of both autoantibodies in T1DM subjects was decreased (EEFA1-AAb, 15.8% to 8.9%; UBE2L3-AAb, 10.9% to 7.9%) when compared to the prevalence using the cutoff derived from the totals for control subjects.</P><P><B>Conclusion</B></P><P>There was no association between age and EEF1A1-AAb or UBE2L3-AAb levels in nondiabetic subjects. However, the wide variation in EEF1A1-AAb and UBE2L3-AAb levels apparent among the control subjects <40 years old should be taken into consideration when determining the cutoff reference range for the diagnosis of T1DM.</P>
( Minhye Koo ),( Yonjin Jun ),( Eunhee Cho ),( Yeonju Hong ) 한국감성과학회 2021 춘계학술대회 Vol.2021 No.-
In order to identify fragrant compounds of the moran flower (Paeonia suffruticosa), dynamic head space extraction method was used to capture volatiles from the living flower, and then volatiles components were analyzed by GC-MS. In addition, the odor characteristic properties were obtained by Flavor-Base 2010. A total of 83 volatile compounds were detected, and the major volatile components were β-caryophyllene, germacrene.D, nerol, geraniol and phenyl ethyl alcohol. These components contributed to the fragrance of fresh floral character (like rose and geranium).
GC/MS와 Dynamic head-space법에 의한 매화 (Prunus mume)꽃의 휘발성 향기성분
( Yonjin Jun ),( Minhye Koo ),( Eunhee Cho ),( Yeonju Hong ) 한국감성과학회 2018 춘계학술대회 Vol.2018 No.-
Volatile compounds of the apricot blossom (Prunus mume) were analyzed to identify the volatiles’ profile and olfactory property. Dynamic head-space extraction methods were used to capture the volatiles from living flower, before GC-MS analysis. In addition, the odor characteristic properties of the major volatile components were obtained by Flavor-Base 2010. A total of 47 volatile compounds were identified, and the major volatile components were benzyl acetate, benzaldehyde, eugenol, estragole, nonanol, acetophenone, hexyl acetate, benzyl butyrate, α-pinene and octanal. The volatile components contributed to the scent of apricot blossom were esters (sweet fruity odor like banana, pear and melon) and benzyl acetate (white floral odor).
( Yoo Li Lim ),( Eunhee Choi ),( Yoon Ok Jang ),( Youn Zoo Cho ),( Yong Seok Kang ),( Soon Koo Baik ),( Sang Ok Kwon ),( Moon Young Kim ) 대한소화기기능성질환·운동학회 2016 Gut and Liver Vol.10 No.1
Background/Aims: Levels of serum apelin (s-apelin), an endogenous ligand for angiotensin-like receptor 1, have been shown to be related to hepatic fibrosis and hemodynamic abnormalities in preclinical studies. We investigated the clinical implications of s-apelin as a noninvasive prognostic biomarker for chronic liver disease (CLD). Methods: From January 2009 to December 2012, 215 CLD patients were enrolled and underwent clinical data collection, hepatic venous pressure gradient (HVPG) measurement, and liver biopsy. s-apelin was detected with a human total apelin enzyme-linked immunosorbent assay kit. All patients were prospectively observed during the median follow-up period of 23.0±12.9 months for decompensation and mortality. Results: A total of 42 patients (19.5%) died during the follow-up period. s-apelin was significantly correlated with measurements of liver stiffness (R2=0.263, p<0.001) and collagen proportional area (R2=0.213, p<0.001) measured from liver biopsy tissue and HVPG (R2=0.356, p<0.001). In a multivariate analysis using a Cox regression hazard model, s-apelin was a weakly significant predictor of decompensation (hazard ratio [HR], 1.002; p<0.001) and mortality (HR, 1.003; p<0.001). Conclusions: s-apelin showed a significant relationship with CLD severity. However, its significance as a noninvasive biomarker for disease severity and prognosis was weak. (Gut Liver 2016;10:109-116)