변혁적 접근법에 의한 다문화교육 프로그램 개발: 오브제로서 ‘국립민속박물관 베트남 꾸러미’ 활용을 중심으로

김유라,강인애 국립민속박물관 어린이박물관과 2018 어린이와 박물관 연구 Vol.- No.14

신용등급 보유가 주식수익률과 변동성에 미치는 영향

김유라,황인덕 예금보험공사 2014 金融安定硏究 Vol.15 No.1

This paper tests the informational efficiency of capital market by investigating the effect of credit rating on firm valuation. In particular, this paper estimates the effect of the credit rating on stock return and volatility by employing cross-sectional regressions across listed firms instock exchanges, some of which possess credit rating(s) while others do not. The estimation results show that the credit rating reduces the volatility of stock return while it does not critically impact the stock return. These evidences imply that the credit rating information refines noisiness of imperfect information on the intrinsic value of the firm, reducing the volatility of stock return. Therefore, the credit rating information contributes to the mitigation of information asymmetry and hence the improvement in market efficiency. 본 연구는 신용평가정보가 주식시장에서 갖는 영향을 검증하기 위하여 국내 유가증권시장과 코스닥시장 상장기업의 신용등급 보유가 해당 기업 주식의 수익률 및 변동성에 미치는 영향을 분석한다. 주식분석과 신용평가는 기업의 미래 현금흐름과 위험을 예측하는 정보를 제공하므로 본질적 속성이 동일하며 신용평가정보는 기업의 내재가치를 반영한다. 기업의 내재가치가 가장 효율적으로 가격에 반영되는 곳이 주식시장이므로 상장기업의 회사채 신용등급 보유 유무가 주식의 수익률 및 변동성에 미치는 영향을 분석하는 것은 자본시장의 정보효율성을 검증하는 연구로 귀결된다. 본 연구의 전반적인 실증결과는 신용등급의 보유가 상장기업 주식의 내재가치 결정에 영향을 미치는 본질적인 정보요인은 아니지만 정보비대칭 하에서 불완전정보의 잡음성으로 인하여 발생하는 비본질적 주가변동성을 유의하게 감소시키는 확증기능을 수행함을 일관되게 제시한다.

컬러 마케팅의 이해와 적용 - 국내 남성복을 중심으로 -

김유라,박현숙 한국조형디자인학회 2006 조형디자인연구 Vol.9 No.2

공황장애의 감정 인식 및 조절 메커니즘

김유라,이경욱,Kim, Yoo-Ra,Lee, Kyoung-Uk 대한불안의학회 2011 대한불안의학회지 Vol.7 No.1

Cognitive models of panic disorder have emphasized cognitive distortions' roles in the maintenance and treatment of panic disorder (PD). However, the patient's difficulty with identifying and managing emotional experiences might contribute to an enduring vulnerability to panic attacks. Numerous researchers, employing emotion processing paradigms and neuroimaging techniques, have investigated the empirical evidence for poor emotion processing in PD. For years, researchers considered that abnormal emotion processing in PD might reflect a dysfunction of the frontal-temporal-limbic circuits. Although neuropsychological studies have not provided consistent results regarding this model, a few studies have tried to find the biological basis of dysfunctional emotion processing in PD. In this article, we examine the possibility of dysregulation of emotion processing in PD. Specifically we discuss the neural basis of emotion processing and the manner in which such neurocognitive impairments may help clarify PD's core symptoms.

숙련성에 따른 QED와 골프퍼팅 수행의 관계 : 위계적 회귀분석의 활용

김유라,박승하,신명진 한국골프학회 2018 골프연구 Vol.12 No.2

[목적] 본 연구의 목적은 위계적 회귀분석을 활용하여 Quiet eye duration(QED)과 퍼팅 수행 간의 관계를 직접적으 로 비교하는 것이다. [방법] 숙련자, 비숙련자 각 5명이 실험에 참가하였으며, 모든 대상자들은 오르막, 내리막 경사 조건에서 각각 30회씩, 총 60회 퍼팅 과제를 실시하였다. 안구 움직임 추적 장비를 사용하여 시선 행동을 분석, QED 를 계산하였으며, 골프 퍼팅의 정확성과 일관성은 각각 반경오차와 이원변량가변오차를 산출하여 계산하였다. 측정 된 모든 자료를 활용하여 위계적 회귀분석을 실시하였다. [결과] 숙련자는 비숙련자보다 QED와 QED의 표준편차가 통계적으로 크게 나타났다. 위계적 회귀분석 결과, 숙련성과 QED의 상호작용 변수가 퍼팅의 정확성에 유의미한 영 향을 주는 것으로 나타났다. 즉, 숙련자는 QED가 길수록 평균반경오차가 감소하는 경향성을 보였고, 비숙련자는 QED가 길수록 평균반경오차가 증가하는 경향성을 보였다. 반면에 숙련성과 QED 표준편차의 상호작용 변수는 퍼팅 의 일관성에 유의미한 영향을 미치지 않았다. [결론] 본 연구 결과를 통해 QED와 수행의 정확성 간의 관계가 숙련 성에 따라 다를 수 있다는 것을 알 수 있다. 또한 비록 유의미한 결과를 도출하지 못하였지만 QED의 일관성에 대한 연구의 필요성도 논의하였다. 마지막으로 QED 연구에 있어서 위계적 회귀분석의 활용 가치를 제안하였다. [Purpose] The purpose of this study is to directly compare the relationship between Quiet eye duration(QED) and putting performance using hierarchical regression analysis. [Method] 5 individual players from each so called experts and novice group participated in the experiment. Each players participated in putting tasks 60 times, 30 times for both uphill and downhill inclination conditions. The eye movements were analyzed by using the eye movement tracking system thus QED was calculated. The accuracy and consistency of the golf putting were calculated by analyzing the radius error and the bivariate variable error, respectively. Hierarchical regression analysis was performed using all measured data. [Result] The SD of QED and QED were shown statistically higher in experts than novice. As a result of hierarchical regression analysis, it was shown that the interaction variables of expertise and QED had a significant effect on the accuracy of putting. Experts group showed the tendency of decrement in the mean radius error with longer QED, and novices group showed the tendency of increment in the mean radius error with longer QED. On the other hand, the interaction variables of proficiency and QED SD did not significantly affect the consistency of putting. [Conclusion] From the results of this study we found out that the relationship between QED and performance accuracy can vary depending on expertise. We also discussed the necessity of research on the consistency of QED, although it did not yield a meaningful result. Finally, we suggest the utility value of hierarchical regression analysis in the QED study.

자본시장에서의 신용평가정보 확대 필요성 : 상장기업 신용등급이 주식수익률 및 변동성에 미치는 영향

김유라,정병욱,황인덕 한국재무학회 2012 한국재무학회 학술대회 Vol.2012 No.11

자본시장의 정보비대칭 환경에서 발생되는 역선택 문제는 투자자와 기업 간에 이해상충을 초래할 수 있다. 국내 자본시장에서 정보효율성을 제약하는 다음과 같은 요인들이 존재하며 투자자보호를 제한하고 있다: (1) 채권시장 및 주식시장의 분석 커버리지가 모두 낮은 수준이다. (2) IPO 시장의 정보비대칭성 수준이 높은 상황이다. 국내 IPO 시장은 수요예측 등 공모가격 결정 메커니즘의 문제, 사후적 투자자보호장치인 시장조성제도 폐지, 형식적인 due diligence 실시, 인수시장 과열 및 과도한 청약경쟁 등으로 투자자보호 장치가 제대로 작동되지 않고 있다. (3) 상장폐지건수가 급증하면서 투자자의 손실가능성이 확대되고 있다. 본 연구는 국내 자본시장의 현황을 분석하고 상장기업 신용등급 유무가 자본시장의 정보효율성에 미치는 영향을 실증적으로 분석하여 자본시장의 정보비대칭 환경에서 역선택 문제를 완화하고 투자자보호를 강화할 수 있는 제도적, 정책적 대안을 제시한다. 본 연구의 실증분석 결과는 국내 자본시장에서 신용등급의 보유 의무화를 정책대안으로 제시한다.

슈타이너의 음악교육론: 현대교육에 주는 시사

김유라 한국교육철학회 2012 교육철학 Vol.47 No.-

This study is about the theory of Rodolf Steiner's music education that developed by new ideas of anthroposophy in the twentieth century and is about his achievement that gives implications to contemporary music education. Steiner's anthroposophic education has been implemented in Waldorf school even today from 100 years ago. Music doesn't exist separately in Waldorf educational courses, but music is melted in the entire process of education. In particular, Steiner thought musical experience in childhood was important and emphasized musical experience. Steiner's education goal is to be anthroposophic person. Steiner said methodological principles for anthroposophic education were depended on developmental stages and temperament of child. Ultimately, these principles help children's growth by the education according to children's individual characteristics. This anthroposophic educational principles have been applied in music education which is depended on developmental stages and temperament. And that principles have been done in Waldorf kindergarten and schools from that era to nowadays. Anthroposophic music education isn't separated education from music but integrated education. Music education and anthroposophic education by Steiner are interacting with each other rather than separated. Music education is a method and principle for anthroposophic education and anthroposophic ideas are melted as they are in music education. Especially since the 20th century, his music education philosophy and methodology have significant similarities with Orff's music education which opened a new era of music education. Their music ideas are recognized as a desirable aims for education that is still being used and pursued. So Steiner's music education also has enough educational implications. This study is about the theory of Rodolf Steiner's music education that developed by new ideas of anthroposophy in the twentieth century and is about his achievement that gives implications to contemporary music education. Steiner's anthroposophic education has been implemented in Waldorf school even today from 100 years ago. Music doesn't exist separately in Waldorf educational courses, but music is melted in the entire process of education. In particular, Steiner thought musical experience in childhood was important and emphasized musical experience. Steiner's education goal is to be anthroposophic person. Steiner said methodological principles for anthroposophic education were depended on developmental stages and temperament of child. Ultimately, these principles help children's growth by the education according to children's individual characteristics. This anthroposophic educational principles have been applied in music education which is depended on developmental stages and temperament. And that principles have been done in Waldorf kindergarten and schools from that era to nowadays. Anthroposophic music education isn't separated education from music but integrated education. Music education and anthroposophic education by Steiner are interacting with each other rather than separated. Music education is a method and principle for anthroposophic education and anthroposophic ideas are melted as they are in music education. Especially since the 20th century, his music education philosophy and methodology have significant similarities with Orff's music education which opened a new era of music education. Their music ideas are recognized as a desirable aims for education that is still being used and pursued. So Steiner's music education also has enough educational implications.

Xanthoma Simulating Plantar Fibromatosis on Sonography

김유라,안경식,강창호 대한초음파의학회 2013 ULTRASONOGRAPHY Vol.32 No.3

Xanthomas are local collections of lipid-laden macrophages and collagen, which are usually associated with impaired lipoprotein metabolism. Xanthomas occur frequently in the skin, subcutis, or tendon, and occasionally in the plantar fascia. Small numbers of xanthomas have been surgically confirmed in the plantar fascia and their sonographic appearance has not been described in the literature. We present sonographic findings of a pathologically proven plantar fascia xanthoma, which was initially mistaken as plantar fibromatosis.

후천 코눈물관 막힘에서 두 가닥 실리콘관 삽입술의 장기효과

김유라,안민,You Ra Kim,MD,Min Ahn,MD 대한안과학회 2012 대한안과학회지 Vol.53 No.11

Purpose: To evaluate the long term effectiveness of double silicone tube intubation in the treatment of acquired nasolacrimal duct (NLD) obstruction. Methods: The authors treated 68 eyes of 40 patients with acquired NLD obstruction. The resolution of preoperative symptoms and signs of NLD obstruction was evaluated 18 months after the operation. Results: The mean age of patients was 64.7 years and the mean follow-up period was 24.91 months. The symptoms and signs of NLD obstruction were improved in 85.29% of the patients. The partially obstructed group showed a higher success rate (89.29%) than the completely obstructed group (50.0%). A prolapse of silicone tubes to the ocular side was observed in 2 eyes, and 2 eyes had inflammatory signs after the procedure. Conclusions: Double silicone tube intubation is an effective primary therapy with NLD obstruction, especially for patiensts with simple partially obstructed NLD instead of dacryocystorhinostomy.

Lapse & Restoration 상실과 재생

김유라 한국색채디자인학회 2006 한국색채디자인학회 학술대회 Vol.2006 No.1