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Messick의 타당도 관점에서 무용만족 검사도구의 타당화: Rasch 모형 적용
장혜림 ( Hye-rim Jang ),김혜련 ( Hye-ryeon Kim ) 대한무용학회 2018 대한무용학회논문집 Vol.76 No.2
As a follow-up study of the study conducted by Jang Hye-Rim(2016), As for dance Satisfaction Testing Instrument, First, results show that questions two questions of validity based on the contents of test are considered inappropriate. Second, validity evidence based on the reality turned out to be appropriate. Third, this study confirmed that validity based on the internal structure has a sufficient condition. Fourth, as for the validity based on the generalization, this study also confirmed through analysis of differential function that there are questions functioning differentially according to the gender and grade
Lee, Sung-Sik,Park, Soojin,Kim, Ju-Young,Kim, Hye-Rim,Lee, Sungyul,Oh, Han Bin The Royal Society of Chemistry 2014 Physical chemistry chemical physics Vol.16 No.18
<P>We present infrared multiple photon dissociation (IRMPD) spectroscopy and quantum chemical calculation results for the protonated permethylated β-cyclodextrin (CD)–water non-covalent complex, the simplest β-CD non-covalent complex, in the gas-phase. The IRMPD spectrum in the region 2700–3750 cm<SUP>−1</SUP> consisted of three strong peaks at 3096, 3315, and 3490 cm<SUP>−1</SUP>. These spectral features in the experimental IRMPD spectrum were compared with a large set of infrared absorption spectra predicted using density functional theory (DFT) calculations for the protonated β-CD–water complex. Complex III (see Fig. 4c), in which the water molecule (at the primary rim) and the proton (at the secondary rim) were separated, was found to suitably reflect the main spectral characteristics found in the experimental IRMPD spectrum. The absence of the homodromic hydrogen bond ring, due to replacement of hydroxyl groups with methoxy groups in permethylated β-CD, rendered the primary rim open compared with the unmodified β-CD ‘one-gate-closed’ lowest energy conformer. This study demonstrates that IRMPD studies combined with DFT theoretical calculations can be a good method for studying molecular interactions of large host–guest pairs.</P> <P>Graphic Abstract</P><P>Water was found to interact with permethylated β-CD through multiple hydrogen bondings with methoxy groups of the rim. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3cp54841d'> </P>
하악 대구치 Ⅱ형 근심 근관에서 치근단 부위의 만곡도 조사
윤혜림,이동균,황호길 大韓齒科保存學會 2012 Restorative Dentistry & Endodontics Vol.37 No.2
Objectives: The purpose of this study was to evaluate the buccolingual curvature at the apical one third in type Ⅱ mesial canals of mandibular molars using the radius and angle of curvature. Materials and Methods: Total 100 mandibular molars were selected. Following an endodonticaccess in the teeth, their distal roots were removed. #15 H- or K-files (Dentsply Maillefer) were inserted into the mesiobuccal and mesiolingual canals of the teeth. Radiographs of the teeth were taken for the proximal view. Among them, type Ⅱ canals were selected and divided into two subgroups, Ⅱa and Ⅱb. In type Ⅱa, two separate canals merged into one canal before reaching the apex and in type Ⅱb, two separate canals merged into one canal within the apical foramen. The radius and angle of curvature of specimens were examined. Results: In type Ⅱ, mean radius of curvature in mesiolingual and mesiobuccal canals were 2.82 mm and 3.58 mm, respectively. The radius of the curvature of mesiolingual canals were significantly smaller than that of mesiobuccal canals in type Ⅱ, and especially in type Ⅱa. However, there were no statistically significant differences in radius of curvature between mesiobuccal and mesiolingual canals in type Ⅱb and there were no significant differences in angle of curvature between type Ⅱa and Ⅱb. Conclusion: In this study, type Ⅱ mesial canals of mandibular molars showed severd curvature in the proximal view. Especially, mesiolingual canals of type Ⅱa had more abrupt curvature than mesiobuccal canals at the apical one third.
내부 응력이 .06 taper Profile의 피로 파절에 미치는 영향
정혜림,김진우,조경모,박세희 大韓齒科保存學會 2012 Restorative Dentistry & Endodontics Vol.37 No.2
Objectives: The purpose of this study was to evaluatie the reation between intentionally induced internal stress and cyclic fatigue failure of .06 taper ProFile. Materials and Methods: Length 25 mm, .06 taper ProFile (Dentsply Maillefer), and size 20, 25, 30, 35, and 40 were used in this study. to give the internal stress, the rotary NiTi files were put into the .02 taper, Endo-Training Bloc (Dentsply Maillefer) until auto-stop by torque controlled motor. Rotary NiTi files were grouped by the number of induced internal stress and randomly distributed among one control group and three experimental groups (n = 10, Stress 0 [control], Stress 1, Stress 2 and Stress 3). For cyclic fatigue measurement, time for separation of the rotary NiTi files was recorded. the fractured surfaces were observed by field emission scanning electron microscope (FE-SEM, SU-70, Hitachi). The tiem for separation was statistically analyzed using two-way ANOVA and post-hoc Scheffe test at 95% level. Results: In .06 taper ProFile size 20, 25, 30, 35, and 40, there were statistically significant difference on time for separation between control group and the other groups (p < 0.05). Conclustion: In the limitation of this study, cyclic fatigue failure of .06 taper ProFile is influenced by internal stress accumulated in the files. (Restor Dent Endod 2012;37(2):79-83)
IT 프로젝트관리 특화 교과목 개발을 중심으로 한 IT 경영대학원 교육과정 개발 연구
박혜림,홍후조 한국교육방법학회 2012 교육방법연구 Vol.24 No.2
본 연구의 목적은 사이버대학교 대학원에서 대학원의 교육목적 및 교육목표에 부합하는 IT 경영대학원(IT 프로젝트관리 특화) 과정을 설치와 관련한 교육과정을 개발하는 데 있다. 이러한 연구 목적을 달성하기 위하여, 관련 분야 졸업생과 재학생을 대상으로 광범한 교육수요조사 결과를 활용하였으며, 첫째, 대학원의 교육목적 및 교육목표, 특성화 방향 등을 확인하고, 이에 부합하는 ‘IT 프로젝트관리(PM)’ 분야 전문 인력의 역할을 확인하여 그들에게 필요한 핵심역량을 도출하였다. 둘째, 도출한 핵심역량을 갖추는데 적합하고 ‘IT PM’ 분야의 특성화된 교육과정(안)을 개발하였다. 셋째, 두 차례의 전문가 의견 조사(N=20)를 활용하여 개발한 IT MBA(IT PM 특화) 교육과정(안)의 타당성을 검증하고, 교육과정을 확정하였다. 넷째, 교육과정 운영에 중요한 교과목의 지위와 비중, 개설 및 이수시기, 졸업요건(현장체험 및 보고서 작성) 등을 전문가 의견조사를 거쳐 확정하였다. 본 연구에 참여한 전문가들은 IT 관련 현장의 IT 엔지니어 및 중간 관리자를 주요 교육수요자로 하여, 이들이 IT PM 전문가(PM Manager/PMO Manager, CIO 등)로서의 역할을 잘 수행할 수 있도록 도움을 줄 수 있는 교육과정 내용 구성을 강조하였다. 연구 결과, IT MBA(IT PM 특화) 교육과정 모형은 Ⅱ-type Model로 제안되었다. 즉, IT PM 전문가 양성 교육과정은 실무자들의 현장 경험을 기초로 하여, ‘IT 경영’과 ‘Project 경영’을 두 기둥으로 하고, 이를 통해 길러지는 핵심역량을 갖춘 중견 관리자의 실천 역량의 고도화를 지향하는 형상으로 구안하여 제안되었다. This study aims to develop a curriculum specialized in IT PM managers for a cyber graduate school. Frameworks and procedures for curriculum development are followings: First, preliminary survey was executed to college students and graduates as latent clients. Based on results of survey, high needs of graduate school course was confirmed. Second, several times of expert meetings and literature review brought forth the drafts of key competencies and lists of courses. Third, IT PM-related specialists survey were implemented in order to reconfirm key competencies of IT PM manager, areas of courses, lists and names of courses, status and weight of courses, and time schedule of course offerings. Through these procedures 21 key competencies of IT PM managers under the two curriculum areas of IT management and Project management, and 16 course lists under the two curriculum areas had been finalized. Finally frameworks and design model(called II-type) of Information Technology MBA curriculum were presented.