제품 및 신기술 인증제도-EM.NT.KT를 중심으로

이선경,Lee, Seon-Gyeong (사)한국포장협회 2000 包裝界 Vol.83 No.-

수도권지역에서 노인의치 국민건강보험 급여에 관한 치과기공사의 인식조사

이선경,박용덕,황경숙,김영훈,Lee, Sun-Kyoung,Park, Yong-Duk,Hwang, Kyung-Sook,Kim, Yung-Hoon 대한치과기공학회 2010 대한치과기공학회지 Vol.32 No.1

Purpose: The purpose of this study is dental technicians perception investigation about national health insurance of old persons denture in metropolitan area. Methods: A survey was performed on 103 subjects in metropolitan from January 14 to April 30 in 2009. The research tool was a structured questionnaire. The collected data was analyzed by frequency, descriptive and multiple linear regression. Results: Total dental technician who respond to questionnaire was 103(100.0%). Male respondent appeared by 66.0%. 30-year-old low respondent appeared by 60.2% and subjects lived the most in seoul(68.0%). When got married, was expose that realization about national health insurance of old person s denture was high(p<0.05). When made denture, was expose that realization about national health insurance of old person s denture was high(p<0.05). Also, When got married, was expose that necessity about national health insurance of old persons denture was high(p<0.001). Conclusion: When did national health insurance of old persons denture, there were a lot of problems. But, old people was need it. Therefore, I desire that this study is used to basic data of the national health insurance.

보건교육사 제도에 대한 동남보건대학 치기공과 학생들의 인식조사

이선경,성환경,이규선,Lee, Sun-Kyoung,Sung, Hwan-Kyung,Lee, Gyu-Sun 대한치과기공학회 2010 대한치과기공학회지 Vol.32 No.3

Objective: The purpose of this study was to research of investigation of dental technology students about health educator systems. Methods: A survey was performed on 102 subjects in March in 2010. There search tool was a structured questionnaire. The collected data was analyzed by frequency, descriptive, chi-square test and Pearson's correlation coefficient by Statistical Package for the Social Sciences version 12.0. Results: Respondent most did not know about health educator systems. But, positive opinion for it. And necessity about education appeared high in subjects. There are a lot of interests in health educator system(p=0.000). Conclusion: We thought that interest of dental technology student's rise more.

치근절제술을 이용한 구치부의 치료

이선경,지숙,방은경,Lee, Sun-Kyoung,Ji, Suk,Pang, Eun-Kyoung 대한치주과학회 2008 Journal of Periodontal & Implant Science Vol.38 No.1

Purpose: Studies reported controversial results about prognosis of root resection with 0%-38% failure rate. The purpose of this study is to consider clinical efficacy of root resection. Materials and Methods: This study reported three cases of root resection which were performed on different sites. In first case, lower right first molar showed pus discharge and 7 mm of probing pocket depth. It was diagnosed as fracture of mesial root. Hemisection of mesial root was performed. In second case, upper right first molar showed severe bone loss on disto-buccal root and 7 mm of probing pocket. Resection of disto-buccal root was performed In third case, lower left second molar showed severe bone loss on distal root including apex and 15mm of probing pocket depth. Hemisection of distal root was performed. Result: In these three cases of root resection, compromised molars were treated successfully and conserved. Conclusion: Root resection is a successful procedure treating compromised multi-rooted teeth and conserving teeth when proper case selection is performed.

Sleep patterns and school performance of Korean adolescents assessed using a Korean version of the pediatric daytime sleepiness scale

이선경,Kyu Young Chae,Sihyoung Lee 대한소아청소년과학회 2011 Clinical and Experimental Pediatrics (CEP) Vol.54 No.1

Purpose: Korean adolescents have severe nighttime sleep deprivation and daytime sleepiness because of their competitive educational environment. However, daytime sleep patterns and sleepiness have never been studied using age-specific methods, such as the pediatric daytime sleepiness scale (PDSS). We surveyed the daytime sleepiness of Korean adolescents using a Korean translation of the PDSS. Methods: We distributed the 27-item questionnaire, including the PDSS and questions related to sleep pattern, sleep satisfaction, and emotional state, to 3,370 students in grades 5-12. Results: The amount of nighttime sleep decreased significantly with increasing age. During weekday nights, 5- 6^th graders slept for 7.95±1.05h, 7-9^th graders for 7.57±1.05 h, and 10-12^th graders for 5.78±1.13 h. However, the total amounts of combined daytime and nighttime sleep during weekdays were somewhat greater, 8.15±1.12 h for 5- 6^th graders,8.17±1.20 h for 7-9^th graders, and 6.87±1.40 h for 10-12^th graders. PDSS scores increased with age, 11.89±5.56 for 5- 6th graders, 16.57±5.57 for 7-9^th graders, and 17.71±5.24 for 10-12^th graders. Higher PDSS scores were positively correlated with poor school performance and emotional instability. Conclusion: Korean teenagers sleep to an unusual extent during the day because of nighttime sleep deprivation. This negatively affects school performance and emotional stability. A Korean translation of the PDSS was effective in evaluating the severity of daytime sleepiness and assessing the emotional state and school performance of Korean teenagers.

0.05wt% $SbI_3$를 첨가한 n형 $Bi_2({Te_{0.95}}{Se_{0.05}})_3$ 가압소결체의 열처리 시간에 따른 열전특성

이선경,오태성,현도빈,Lee, Sun-Kyong,Oh, Tae-Sung,Hyun, Dow-Bin 한국재료학회 2000 한국재료학회지 Vol.10 No.4

0.05wt% $SbI_3$를 첨가한 n형 $ Bi_2(Te(_{0.95}Se_{0.05})_3$ 합금분말을 용해/분쇄법으로 제조하여 가압소결 후, 36시간까지의 열처리 시간에 따른 열전특성의 변화 거동을 분석하였다. 열처리 시간이 증가함에 따라 0.05wt% $SbI_3$를 첨가한 n형 $ Bi_2(Te(_{0.95}Se_{0.05})_3$ 가압소결체의 전자 농도가 감소하였다. 0.05wt% $SbI_3$를 첨가한 $Bi_2(Te(_{0.95}Se_{0.05})_3$ 가압소결체는 $2.1{\times}10^{-3}/K$의 성능지수를 나타내었으며 $500^{\circ}C$에서 3시간 열처리 시 $2.35{\times}10^{-3}/K$로 성능지수가 향상되었으나, 12시간 이상 열처리 시에는 전기비저항의 증가에 기인하여 성능지수의 현저한 감소가 발생하였다. Thermoelectric properties of the 0.05wt% $SbI_3$-doped n-type $Bi_2(Te_{0.95}Se_{0.05})_3$ alloy, prepared by melting/grinding and hot pressing, were investigated with variation of the annealing time up to 36 hours. The electron concentration of the 0.05wt% SbI$_3$-doped n-type $Bi_2(Te_{0.95}Se_{0.05})_3$ alloy decreased with increasing the annealing time. The figure-of-merit of the 0.05wt% $SbI_3$-doped n-type $Bi_2(Te_{0.95}Se_{0.05})_3$ alloy was improved from $2.1{\times}10^{-3}/K$ to $2.35{\times}10^{-3}/K$ by annealing at $500^{\circ}C$ for 3 hours. When annealed longer than 12 hours, however, the figure-of-merit decreased substantially due to the increase of the electrical resistivity.

치기공학과 교육과정 만족도 및 교육과정에 대한 요구

이선경,권순석,LEE, Sun-Kyoung,Kwon, Soon-Suk 대한치과기공학회 2019 대한치과기공학회지 Vol.41 No.4

Purpose: The purpose of this study was to enhance curriculum satisfaction of dental laboratory technology and curriculum demands. Methods: From March 5 to March 31, 2019, a self-written questionnaire was conducted for 195 students from the department of dental laboratory technology at a university in Gangwon-do. The analytical methods used were descriptive statistical analysis, frequency analysis, cross analysis, correlation analysis and reliability analysis. The collected data was used for SPSS 18.0 for Windows statistics program. Results: The demand of the school education includes systematic experiments and demand of practical training, acquisition of professional knowledge, introduction of advanced technology curriculum, reduction of national examination-oriented curriculum, and increased professionalism and professionalism as professional professionals. Investigated by the ethics. In addition, they were strongly aware of the necessity of digital education related to CAD / CAM, and there was a high demand for how to operate programs, scanning and design. Conclusion: The curriculum needs to be reorganized to cultivate dental technicians in a changing era, and in-depth centralized curriculum in fields with high practical needs, as well as vocational and ethical views as professionals.

일반화학 학습의 맥락에서 동기적 신념과 사회-문화적 가치에 관한 개념생태의 범주

이선경,박현주,김우희,Lee, Sun Kyung,Park, Hyun Ju,Kim, Uh Hee 대한화학회 2000 대한화학회지 Vol.44 No.3

본 연구에서는 일반화학 학습의 맥락을 형성하는 대학생의 개념생태를 알아 보고자하였다.연구는 1999년도 1학기에 일반화학을 수강하는 1학년 학생들 9명을 대상으로 하여 정성적 방법으로 수행 되었다. 연구 자료는 3차에 걸친 면담, 수업 직접관찰, 여러 번의 퀴즈와 중간${\cdot}$기말 시험, 그리고 학생들이 작성한 수필 형식의 글과 수업관찰 일지에서 수집 되었다. 연구자는 3 성분 분석 방법에 따라 자료를 연구 참여자별로 분석하고, 이를 상호 비교하였다. 연구의 결과,개념 생태는 크게 인식론적 관점,동기적 신념,사회-문화적 가치의 세 범주로 나뉘어졌다. 이들 개념생태의 세 범주 중에서도 특히, 동기적 신념과 사회 선회적 가치의 범주가 일반화학 학습에 중요한 영향을 미치고 있는 것으로 나타났으며, 그 결과를 전형적인 사례 연구로 제시하고 화학학습 접근법을 살펴보았다. The purpose of this Study was to explore students' conceptual ecologies in the context of general chemistly learning. This study was implemented in the first semester of 1999 by natural study. We had nine voluntary participants. Data were collected from three semi-constructd interiews, and socio-cultural values. Among three categories, motivationa1 beliefs and socio-cultural values have more effcts rather than epistemology on the context of general chemistry learning, and three typical cases were presented as results of this study. We expect that results of this study will somewhat contribute to establish psychological and socio-cultural context of learning.

일반화학을 수강하는 학생들의 문제 및 문제해결에 대한 사고유형

이선경,박현주,Lee, Seon Gyeong,Park, Hyeon Ju 대한화학회 2002 대한화학회지 Vol.46 No.6

This study was to explore students' thought patterns on problem and problem solving in the course of general chemistry. The participants were 9 students taking the course of general chemistry in a university in Seoul. Data were collected from various sources; three individual interviews, classroom observations, and essays written by students.Data were all transcribed and then analyzed circularly in constant component analysis. As the results of this study, six thought patterns of students in the context of learning general chemistry were presented. These thought patterns were common and existed important component within most of students' conceptual ecologies about learning chemistry. Implications of chemistry and science learning related to this results were discussed. 이 연구는 일반화학을 수강하는 대학생들이 지닌 ''문제 및 문제해결''에 대한 사고를 학습 맥락의 관점에서 살펴보았다. 서울에 소재한 한 대학의 일반화학을 수강하는 9명의 연구 참여자들을 대상으로 하여, 개별 면담, 수업관찰, 학생들이 작성한 수필 등을 통하여 자료를 수집하였다. 수집된 자료는 순환적인 성분 비교 분석틀을 사용하여 분석되었다. 연구 결과에 의하면, 일반화학을 수강하는 학생들이 문제 및 문제해결에 대한 사고는 학교 과학 성취도와 관련지어 인식하는 것, 학습 구성과 관련하여 인식하는 것, 문제 유형과 관련하여 인식하는것 등의 여섯 가지 특징으로 나타났다. 그러한 특징은 대부분의 연구 참여자에게 공통적으로 나타났으며, 화학 학습의 개념생태 내에 중요하게 자리잡고 잇는 것으로 파악되었다. 이와 관련해서 화학 및 과학 교수, 학습에 대한 시사점을 논의 하였다.

치기공과 학생의 대면과 비대면 수업의 인식 및 만족도

이선경,Lee, Sun-Kyoung 대한치과기공학회 2021 대한치과기공학회지 Vol.43 No.3

Purpose: To study the perception and satisfaction of in-person and online classes for dental technology students. Methods: A total of 420 questionnaires were distributed to dental technology students between June 1 and June 30, 2021. Of these, 225 questionnaires were assessed using frequency analysis, one-way analysis of variance, Pearson's Chi-squared test, and independent t-tests via IBM SPSS Statistics ver. 22.0 (IBM). Results: For theory subjects, satisfaction was higher for online classes than in-person classes (p=0.001). For practical subjects, satisfaction was higher for in-person classes than online classes (p=0.002). Both the learning effect and motivation for learning were higher for in-person classes than online classes (p=0.001). Conclusion: When in-person and online classes become coexistent, there should be educational guidelines for improving the quality and effectiveness of learning in these different contexts.