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최정미(Choi Jung-mi) 한국어문교육학회 2005 어문학교육 Vol.30 No.-
The purpose of this study is to consider and analyze the current method of pronunciation instruction from critical views and thereon find and apply effective ways of such instruction which would be actually helpful. In Chapter Ⅱ, the study sought to find problems of the current method of pronunciation instruction by reviewing related curricular courses, textbooks and written instructions for teachers. Then the researcher made a field questionnaire survey of teachers and children in regard to requirements and tasks of pronunciation instruction. The chapter makes the following descriptions. First, contents of curricular courses and textbooks in relation to pronunciation instruction should be organized under mutually clear associations. Especially, those contents of textbooks are needed to be reorganized to ensure that pronunciation instruction becomes the goal of actual classes. Second, written instructions for teachers should be supplemented with additional contents to be materials fully supporting pronunciation instruction. Third, it was found in the questionnaire survey that both teachers and children were having difficulty in instructing or learning pronunciation. Thus it is necessary to develop relevant supplementary materials, activities of teaching and learning pronunciation, relevant instruction models and a pronunciation evaluation sheet which is designed to diagnose and correct the pronunciation of individual children in accordance with their difference. Considering tasks of pronunciation instruction described in the chapter Ⅱ, Chapter Ⅲ provided examples of the preparation and use of a pronunciation evaluation sheet and a written survey to diagnose pronunciational conditions of elementary school students. The researcher used the pronunciation evaluation sheet and the written survey, she prepared, to examine 67 children in their 6th grade of an elementary school where she was serving. In Chapter Ⅳ, the researcher developed a model of the integrated teaching and learning of pronunciation and applied it to actual classes. In this study, the model was defined as a method of pronunciation instruction that helps integrally perform pronunciation-related activities in association with speech function or speech knowledge. And the study tried to provide such activities for each of the steps of the model. The model consists of five stages which are not sequential, but flexible in accordance with the condition of instruction. In conclusion, this study is may be significant in that it considered problems of the current method of pronunciation instruction from critical views and thereon developed the pronunciation evaluation sheet and the model of teaching and learning pronunciation, both of which could be actually useful.
생쥐 치아 발생과정 중 법랑질모세포에서 Dynamin II 발현
최정미 ( Jung Mi Choi ),문덕환 ( Deog Hwan Moon ),이정화 ( Jung Hwa Lee ) 한국치위생과학회 2012 치위생과학회지 Vol.12 No.5
Immunostaing intensity of Dynamin II protein in ameloblast during mouse tooth development showed a significant increase of 48% at the postnatal day 3 and a significant increase of 50% at the postnatal day 5 as compared with the postnatal day 1, but showed a significant decrease of 16% at the postnatal day 7 and a significant decrease of 12% at the postnatal day 10 as compared with the postnatal day 1. From the above results, Dynamin II had relevance to secretion of amelogenin, ameloblastin, enamelin and matrix metalloproteinase-20 proteins for enamel formation in ameloblast. Dynamin II may be involved in the transport of vesicles containing proteins for enamel formation through the acceleration of vesicular formation and may be had a good possibility of secretory regulation of proteins for enamel formation in ameloblast. Therefore, Dynamin II have potential for being used in the field of gene theraphy for periodontal disease and in the regeneration for enamel and dentin tissues lost to dental caries.
최정미 ( Jung Mi Choi ),장현철 ( Hyun Chul Jang ),현재영 ( Jae Young Hyeon ),석중현 ( Jung Hyun Sok ) 대한금속재료학회(구 대한금속학회) 2012 대한금속·재료학회지 Vol.50 No.10
The uniform and highly smooth nanofibers of biocompatible poly (ε-caprolactone) (PCL) composited with different contents of multiwalled carbon nanotubes (MWCNTs) were successfully prepared by electrospinning. Experimental parameters were MWCNTs addition to a PCL solution and applied voltages. The topographical features of the composite nanofibers were characterized by scanning electron microscopy and its electrical properties were measured by a four-point probe method. The surface resistance gradually decreased with an increasing content of MWCNTs in PCL fibers because of the excellent electrical conductivity of MWCNTs. The nanofiber diameter could be regulated by varying the solution viscosity and voltages. Our results establish that this kind of electrospinning PCL/MWCNTs nanofibers with the control of fiber diameter and electrical conductivity may be a promising candidate for the application of scaffolds in tissue engineering.
아동의 사회적 능력에 영향을 미치는 어머니 관련 변인에 관한 연구
최정미(Jung Mi Choi) 한국아동학회 2002 아동학회지 Vol.23 No.3
This research delineated variables of maternal influences on children`s social competence. The sample consisted of 287 pairs of 5th/6th grade students, their mothers, and 8 classroom teachers in Gwangju City. Analysis included factors of mother`s adult attachment, marriage adjustment, affection in child-rearing, level of education and income. The result of multiple regression analysis indicated that affectionate child-rearing is the most significant factor contributing to child`s social competence, followed by mother`s education, close attachment, income, and anxiety attachment, in that order. These maternal variables accounted for 18% of the child`s social competence.