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김아현 ( Ah Hyeon Kim ),한선영 ( Sun Young Han ),김형규 ( Hyung Gyoo Kim ),권호근 ( Ho Keun Kwon ),김백일 ( Baek Il Kim ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.2
Objectives. This study examined the characteristics of a high caries risk group of 12-year-old children in Korea. Methods. The oral health status and interview data were collected from 1,755 children (888 males, 867 females), aged 12 years, who participated in the Korea National Oral Health Survey in 2006. The DMFT values of the subjects were sorted. The upper one third was selected as the high risk caries group (N=585) and the other two thirds were classified as the low risk caries group (N=1,170). This study used the demographic and social variables, such as gender, area of residence and governmental support for lunch in school. The variables for the oral health status, oral health related-consciousness and behavior were the number of dental sealants of the first molar, self-perceived oral health, tooth brushing after lunch, average frequencies of tooth brushing per day and the mean frequency of daily snack consumption. The associations between the demographic and social variables, oral health status, oral health related-consciousness and behavior and high risk group were evaluated by logistic regression analysis. Results. Most of the high caries risk group had less than 2 sealant teeth on the first molar (94.2%) and lived mainly in metropolitan areas (46.8%, p<0.05). They had a poorer self-perceived oral health (41.8%) than the low risk group and more 2∼3 times the snack intake per day (p<0.05). The determinants of the high risk group were whether the first molar was sealed (‘under 2’, OR=6.05), self-perceived oral health (‘good’, OR=1.77, ‘poor’, OR=2.67), mean frequency of daily snack intake (‘2∼3 time’, OR=1.31, ‘more than 4’, OR=2.34) and area of residence (‘city’, OR=0.79). Conclusions. The characteristics of the high caries risk group in Korean 12-year-old children were less than 2 sealant teeth on the first molar, poor self-perceived oral health, high snack intake per day and living in metropolitan areas.
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도시공원.녹지의 시민만족도 모형 - 안양시를 사례로 한 교류적 접근 -
김유일,김정규,안진성,최아현,Kim, Yoo-Ill,Kim, Jung-Gyu,An, Jin-Sung,Choi, A-Hyun 한국조경학회 2010 韓國造景學會誌 Vol.38 No.3
본 연구의 목적은 도시공원과 녹지공간의 이용과 미적 측면에서 도시민들이 중요하게 가치를 두고 있는 요인들을 평가하고, 다양한 공원녹지 요소에 대해 이용자 만족도 변화를 다루는 방법을 찾는 것이다. 이를 위해서 본 연구에서는 안양시의 1999년과 2007년의 환경의 질을 평가하기 위해 교류적 접근방법을 이용한 동적모형과 공원녹지만족도 개념모형을 발전시킨다. 그리고 실증적 연구방법으로 1999년과 2007년의 공원녹지 환경 조사와 1999년의 573개, 2007년의 982개의 설문을 포함한다. 분석결과, 첫째, 공원녹지만족도의 가장 중요한 요인은 '도시공원'이고, 그 다음으로 '도시경관'이었다. 둘째, 모형에서 공원녹지만족도는 도시거주성과 경관의 질을 포함한 도시환경의 질적 만족도의 원인이 된다. 셋째, 요인분석결과, 평가인자는 도시경관, 도시녹지, 선형시설, 도시공원, 하천녹지, 산림녹지의 6개 요인이었으며 2007년에는 시민들이 참여한 '안양천 되살리기 운동'으로 인해 하천녹지 요인이 새로이 나타났다. 넷째, 교류적 관점에서 환경변화 결과는 시민들의 태도변화 측면, 안정성 측면의 양면을 보여주고 있다. 만족도는 향상되었지만 대부분의 요인에서 만족-불만족 항목의 패턴은 변화되지 않았다. 녹도를 포함한 하천녹지와 선형시설(보행자전용도로, 자전거도로, 조깅로 등)은 긍정적으로 변화되었다. 2007년에 공원녹지만족도는 안양시의 노력과 시민운동으로 조성된 도시공원 및 하천과 녹도로 인해 두드러지게 향상되었다. This study aims to examine what factors citizens value in urban parks and green spaces in terms of usage and aesthetic value and to find ways to deal with the changing patterns of user satisfaction for these various green elements. To achieve this, the study developed a dynamic model employing a transactional approach to evaluate environmental quality for 1999 and 2007 in Anyang City as well as a conceptual model of parks and greens satisfaction. This study relied on an empirical study method including the 1999 and 2007 green conditional survey and citizen questionnaires totaling 573 in the year 1999 and 982 in the year 2007. As a result, first, the factor 'urban parks' is the most important factor and 'cityscape' is the second most important factor in parks and greens satisfaction(PGS). Second, PGS in turn causes environmental quality satisfaction(EQS), which is related to two items--'urban livability' and 'aesthetic quality'--in the model. This means that PGS is the intervening variable of urban livability. Third, the factor analysis resulted in six factors: cityscape, urban green, linear facilities, urban parks, riverside green, and urban forest. 'Riverside green' emerged as a factor in 2007 as a result of public participation in the 'Anyang River Revitalization Project'. Fourth, through a transactional view, the environmental changes result in either a change in or stability of public attitude. The levels of satisfaction were elevated but patterns of satisfied-unsatisfied items remained unchanged for most factors. The perception of riverside a greenway and linear surface facilities(pedestrian walkways, biking and jogging trails, etc.) have changed positively. PGS changed significantly in 2007, as a result of urban events and development, including parks, rivers and greenways which were built through the joint effort of the local government and civic participation.
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초등 음악 원격수업에서 국악 교육용 콘텐츠 활용의 문제점과 개발 방향
김아현 ( Kim A-hyun ) 한국예술교육학회 2021 예술교육연구 Vol.19 No.2
본 연구는 초등 음악 원격수업에서 기존 개발된 음악 교육용 콘텐츠 중 국악 교육용 콘텐츠를 중심으로 활용할 때의 문제점을 파악하고 이를 토대로 국악 교육용 콘텐츠 개발 방향을 제안하는 데 목적을 두었다. 국악 교육용 콘텐츠는 학교 교육과정 체계와 밀접성이 결여되고, 학습자의 실기·체험을 위한 활동과 피드백이 부재하며, 콘텐츠 활용을 위한 편집 및 플랫폼의 제한이 있다는 문제가 제기되었다. 이에 대한 개선을 토대로 국악 교육용 콘텐츠 개발 방향은 다음과 같다. 첫째, 음악과 교육과정과의 밀접성 강한 국악 교육용 콘텐츠를 개발해야 한다. 둘째, 음악 수업 내 상호작용을 지원하는 온라인 학습 도구 기능을 삽입하여 학습자의 실기·체험 활동과 피드백 및 평가가 원활하게 이루어지도록 개발해야 한다. 셋째, 온라인 음악교육 플랫폼에서 국악 교육용 콘텐츠를 한 번에 관리하고, 교수·학습에 맞게 다양한 콘텐츠를 수집, 편집, 재가공하여 구성형 콘텐츠를 개발해야 한다. 향후 국악 교육용 콘텐츠 개발은 저작권법 완화, 교사와의 협업을 통한 국악 관련 기관의 지속적인 콘텐츠 개발, 미래 음악교육을 위한 인프라 구축 등이 함께 이루어져야 할 것이다. 이를 통해 음악 원격수업이 안정적으로 이루어지고, 이와 더불어 국악 수업이 교육 패러다임의 변화에 맞추어 변화하고 발전할 수 있기를 기대한다. This study aims to propose educational Korean music contents development direction by deriving the problem utilized in elementary music distance learning. Educational Korean music contents had the following problems: lack of closeness to the school curriculum system, lack of activity and feedback for learners' practical skills and experiences, editing and platform restrictions for content utilization. Based on this problem, educational Korean music contents development direction in elementary music distance learning is as follows: First, we need to develop contents for Korean music education that are closely related to music curriculum. Second, online learning tool features that support interactions in music classes should be inserted to facilitate learners' practical and hands-on activities, feedback and evaluation. Third, contents for music education should be managed at once on online music education platforms, and various contents should be collected, edited, and re-processed to suit teaching and learning to develop compositional contents. In the future, educational Korean music contents should be accompanied by easing copyright laws, continuous content development of Korean music-related institutions through cooperation with teachers, and infrastructure for future music education. Through this, it is hoped that elementary music distance learning will be stable and that Korean music classes will be able to change and develop in line with changes in the educational paradigm.
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김아현(Kim, A-Hyun),이학주(Lee, Hak-Ju),강지연(Kang, Ji-Yeon),김형근(Kim, Hyung-Geun) 한국주거학회 2016 한국주거학회 학술대회논문집 Vol.2016 No.4
The long-life housing certification system must have been applied more than 1,000 households apartments since 2015. All of the certified apartments are the “pass” rating, but they are not different from the “not-pass” rating of apartments in long-term use. To design a long-life housing, it is important that it should be variable and flexible according to life-style or life-cycle. Therefore, it must be planned for flexible indoor space and easy to repair plumbing facilities. For overall that demands, the prototype of Long-life housing has developed and it has a feature such as durability, variability and serviceability. In this study, a cost comparative analysis was conducted on the bath plumbing system.
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머신러닝 기술을 활용한 손해보험사 현장조사 의뢰에 대한 효용 극대화
김아현(Kim, Ah-Hyeon),이보미(Lee, Bomi),양승철(Yang, Seungchul),곽한빈(Kwak, Hanbin),김대원(Kim, Daewon),이승권(Lee, Seungkwon) 대한산업공학회 2020 대한산업공학회 추계학술대회논문집 Vol.2020 No.11
보험사기 적발 금액이 지속해서 증가하는 요즘, 고객 보호 및 기업 손실 최소화를 위해 현장조사가 필요한 건을 적시에 의뢰하는 것은 굉장히 중요하다. 이를 위해 본 연구는 한 국내 손해 보험사의 보험금 청구 데이터를 이용하여, Boosting tree 알고리즘 기반으로 하는 다양한 알고리즘을 활용하여 현장조사 의뢰 필요 여부를 예측하고, 그 효용을 극대화하고자 하였다. 그 결과 현장조사 여부만을 Target 으로 하는 단일 모델이 아닌 여러 모델을 결합하는 3 가지 고도화 기법을 제시하였고 이를 통해 효용이 있는 현장조사 필요 건들을 더 많이 찾을 수 있었다.
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폐 섬유모세포에서 황사의 미세먼지(Particulate Matter 10)가 활성산소족과 TGF-β, NF-κB, PDGF-α, Fibronectin의 생성에 미치는 영향
김아현 ( Ah Hyun Kim ),전수연 ( Su Yeon Chon ),윤진영 ( Jin Young Yoon ),김유진 ( Yu Jin Kim ),경선영 ( Sun Young Kyung ),이상표 ( Sang Pyo Lee ),박정웅 ( Jeong Woong Park ),정성환 ( Sung Hwan Jeong ) 대한결핵 및 호흡기학회 2009 Tuberculosis and Respiratory Diseases Vol.67 No.6
Background: Dust clouds blown by the wind from the arid deserts of Mongolia and Northeast China are known as Asian dust storms. Ambient particulate matter with a diameter <10 μm (PM10) is associated with the exacerbation of respiratory diseases and increased mortality of heart and lung disease patients. The fibrotic effects of PM10 of Asian dust to pulmonary fibroblast cells are unknown. This study examined the production of reactive oxygen species (ROS), TGF-β, NF-κB, PDGF-α and Fibronectin in fibroblasts exposed to Asian dust particles. Methods: Air samples were collected using a high volume air sampler (Sibata model HV500F) with an air flow of 500 L/min for at least 6 hours. The MRC-5 cells were exposed to 0, 50 and 100 μg/mL of PM10 for 24 hours. ROS was detected by measuring the level of oxidized DCF using FACS. TGF-β, NF-κB, PDGF-α and fibronectin were detected by western blotting. Results: There was no increase in the ROS, TGF-β and PDGF-α levels in the MRC-5 cells exposed to PM10. The NF-κB level was higher in the MRC-5 cells exposed to 50 and 100 μg/mL of PM10 for 24 hours. The fibronectin level in the MRC-5 cells after 24 hours incubation with 50 μg/mL PM10 was significantly higher than the control group (PM10 50 μg/mL 113.27±8.65 of control, p=0.005). Conclusion: PM10 from Asian dust increases the activation of NF-κB and fibronectin expression in MRC-5 fibroblast cells.
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