GEMINI NEAR-IR PHOTOMETRY OF THE ARCHES CLUSTER NEAR THE GALACTIC CENTER

YANG YUJIN,PARK HONG SOO,LEE MYUNG GYOON,LEE SANG-GAK The Korean Astronomical Society 2002 Journal of The Korean Astronomical Society Vol.35 No.3

We present Near-IR photometry of the Arches cluster, a young and massive stellar cluster near the Galactic center. We have analyzed the high resolution (FWHM $\~$ 0.2") Hand K' band images in the Galactic Center Demonstration Science Data Set, which were obtained with the Gemini/Hokupa's adaptive optics (AO) system. We present the color-magnitude diagram, the luminosity function and the initial mass function (IMF) of the stars in the Arches cluster in comparison with the HST/NICMOS data. The IMF slope for the range of 1.0 < log (M/M$\bigodot$) < 2.1 is estimated to be ${\Gamma} = -0.79 {\pm} 0.16$, in good agreements with the earlier result based on the HST/NICMOS data [Figer et al. 1999, ApJ, 525, 750]. These results strengthen the evidence that the IMF of the bright. stars close to the Galactic center is much flatter than that for the solar neighborhood. This is also consistent with a recent finding that the IMFs of the bright stars in young clusters in M33 get flatter as the galactocentric distance decreases [Lee et al. 2001, astro-ph 0109258]. It is found that the power of the Gemini/ AO system is comparable, with some limits, to that of the HST/NICMOS.

Mapping the Polarization of the Radio-Loud Lyman Alpha Nebula B3 J2330+3927

Yujin Yang,Chang You,Ann Zabludoff,Paul Smith,Buell Jannuzi,Moire Prescott 한국천문학회 2015 天文學會報 Vol.40 No.2

Effect of Rosuvastatin on Coronary Flow Reserve in Hypertensive Patients at Cardiovascular Risk

Yujin Yang,EunSoon Hwang,Seung-Ah Lee,이사민,김대희,송종민,강덕현 한국심초음파학회 2021 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.29 No.3

BACKGROUND: It has been unclear whether statin therapy directly improves coronary flow reserve (CFR) in hypertensive patients at cardiovascular risk, independent of lifestyle modification and antihypertensive medications. METHODS: In this double-blind, randomized controlled trial, we randomly assigned 95 hypertensive patients at cardiovascular risk to receive either rosuvastatin 10 mg or placebo for 12 months, in addition to antihypertensive therapy and lifestyle modification for hypercholesterolemia. Using Doppler echocardiography, coronary flow velocity in the distal left anterior descending artery was measured and CFR was calculated as the ratio of hyperemic to basal averaged peak diastolic flow velocity. The primary end point was change in CFR from baseline to 12 months follow-up. RESULTS: Low-density lipoprotein-cholesterol was changed from 157 ± 23 to 84 ± 16 mg/dL in the rosuvastatin group (p < 0.001) and from 152 ± 19 to 144 ± 22 mg/dL in the control group (p = 0.041, but there were no significant differences between the treatment groups in the changes in C-reactive protein, high-density lipoprotein cholesterol, and blood pressures. CFR was changed from 3.03 ± 0.44 to 3.25 ± 0.49 in the rosuvastatin group (p < 0.001) and from 3.15 ± 0.54 to 3.17 ± 0.56 in the control group (p = 0.65). The primary end point of change in CFR was significantly different between the rosuvastatin group and the control group (0.216 ± 0.279 vs. 0.015 ± 0.217; p < 0.001). CONCLUSIONS: Compared with lifestyle modification alone, addition of rosuvastatin significantly improved CFR in hypertensive patients at cardiovascular risk.

영유아기 자녀를 위한 자기조절력 측정척도의 개발을 위한 기초연구

양옥승 ( Yang Okseung ),김정림 ( Kim Junglim ),양유진 ( Yang Yujin ) 열린부모교육학회 2016 열린부모교육연구 Vol.8 No.4

영유아기 자녀를 위한 자기조절력 측정척도의 개발을 위해 본 연구에서는 영유아 교육 및 보육 전문가 20명을 대상으로 두 차례에 걸쳐 델파이 조사를 실시하였다. 조사에 사용된 시안은 5점 리커트 척도로서 총 96문항(자기감정 인지 19문항, 타인감정 인지 16문항, 감정억제 16문항, 감정대처 14문항, 자기의도 인지 15문항, 행동계획 및 모니터링 16문항)으로 구성되었다. 수집된 자료에 대해서는 각 문항의 평균 및 표준편차, 사분범위(IQR), 내용타당도 비율(CVR) 값을 산출하여 문항의 타당성을 검토하였다. 델파이 1차 조사 결과, 문항선정기준을 충족시키지 못한 문항은 8문항으로 확인되었으나 패널들의 의견을 반영하여 문항 내용을 수정하였다. 델파이 2차 조사에서 모든 문항의 평균 및 표준편차, CVR 값이 문항 선정 기준(M≥4.00, SD≤1.00, CVR≥.42)을 충족시키는 것으로 나타났다. 사분범위를 검토했을 때 1문항이 문항 선정 기준(Q3-Q1≥1.00)에 미달하는 것으로 나타났으나 다각적인 기준으로 문항의 타당성을 분석한 결과, 영유아기 자녀를 위한 자기조절력 측정척도는 최종 96문항으로 확정되었다. In order to develop self-regulation scale for infants and preschoolers, two sessions of Delphi surveys were performed on 20 educational and day care experts. Draft proposal for the surveys was a 5 point Likert scale consisting of total of 96 items as follows: 19 items for recognition of one`s own emotions; 16 items for recognition of others` emotions; 16 items for inhibition of emotions; 14 items for emotional coping; 15 items for recognition of his/her own intentions; 16 items for behavior planning and monitoring. Validity of the items was evaluated by considering the mean, standard deviation, inter-quartile range(IQR) and content validity ratio(CVR) of each items. There were 8 items that were deemed insufficient to qualify as items from the first session of Delphi survey, resulting in revision of the contents of the items based on the panelists` recommendations. All items were found to qualify as items from the second session of Delphi survey based on mean, standard deviation and CVR values(M≥4.00, SD≤1.00, CVR≥.42). One item was found to be insufficient to qualify as an item based on the IQR, but upon multilateral analysis of items, total of 96 items were confirmed for self-regulation scale for infants and preschoolers.

양자컴퓨터를 통한 대칭키 및 공개키 해킹 동향

오유진(Yujin Oh),양유진(Yujin Yang),장경배(Kyungbae Jang),서화정(Hwa-jeong Seo) 한국정보보호학회 2023 情報保護學會誌 Vol.33 No.2

공립유치원 교사 임용 후보자 선정 경쟁시험 출제 문항 분석: 교사의 핵심역량을 중심으로

양유진(Yang yujin) 학습자중심교과교육학회 2019 학습자중심교과교육연구 Vol.19 No.19

본 연구는 2013학년도부터 2019학년도까지 출제된 교사 임용 후보자 선정 경쟁시험 문항의 특성을 분석하고, 공립유치원 교사에게 요구되는 핵심역량을 탐색하고자하였다. 이를 위하여 지난 7년간 출제된 임용시험 문항을 추출 및 분석 하였다. 이를 위해 임용시험 문항을 수집하였으며, 수집 후 각 문항의 유형과 형태를 1차 분석하여 엑셀파일에 저장하였다. 이후 모범답안을 마련하여 각각의 분석기준인 교사의 핵심역량에 따라 교직인성 및 전문성의 개발, 학습자 이해, 교육과정 운영, 평가의 이 해 및 실행, 대인관계 및 의사소통 실천, 정보화 소양개발, 유치원 운영의 7개의 범주에 따라 분류하였다. 그 결과, 문항의 유형으로는 ‘단답형’이 가장 많이 출제된 문항의 유형으로 나타났으며, ‘선다형’이나 ‘진위형’은 출제문항유형으로 나타나지 않았 다. 문항의 형태는 ‘원리나 기준기술’이 가장 많이 출제된 문항의 형태로 나타났으며 ‘교사발문기술’은 가장 미미한 출제형태로 드러났다. 출제된 문제에 나타난 교사의 핵심역량을 분석한 결과, 공립유치원 교사 임용시험에서는 ‘교육과정운영’이 가장 요한 핵심역량으로 나타났으며, ‘정보화 소양 개발’의 핵심역량 드러나지 않아, 앞으로 반영되어야 할 핵심역량으로 나타났다. 이를 바탕으로 이후 교사 임용 후보자 선정 경쟁시험의 나아가야 할 방향과 미래사회 핵심역량을 갖춘 교원양성을 위한 시사점을 논의하였다. This study would analyze the characteristics of the public kindergarten teacher appointment examination questions from the year of 2013 to 2019, and investigate the core competency which is required of public kindergarten teachers. For this purpose, this study extracted, and analyzed the public kindergarten teacher appointment examination questions for last 7years. Consequently, the type of questions which is used the most is a ‘Short answer question’, but a ‘Multiple-choice question’, nor a ‘True-and-false question’ is used. The form of questions which is used the most is a ‘Describing a principle or criterion’, on the other hand, the form of ‘Describing a teacher’s questioning’ is barely used. This study shows, after analyzing the core competency of teachers appeared in the questions, the most important core competency is ‘Implementing of curriculum’ for the public kindergarten teacher appointment examination, and ‘Development of information capability’ is the core competency needed to be focused more for the future, due to its low frequency. Based on the result, this study would offer a further direction of the public kindergarten teacher appointment examination, and a implication for training teachers with core competencies for the future society.

뇌과학 관점에서 본 영유아의 자기조절 발달

양옥승 ( Yang Okseung ),김정림 ( Kim Junglim ),양유진 ( Yang Yujin ) 열린부모교육학회 2017 열린부모교육연구 Vol.9 No.2

본 연구에서는 자기조절력을 뇌과학적 관점에서 고찰하여 영유아의 자기조절력이 어떠한 단계를 거쳐 발달하는지 알아보고자 하였다. 이를 위해 자기조절력과 관련된 뇌 기제에 대해 알아보고, 뇌과학 관점에서 영유아의 인지조절 및 정서조절의 발달을 고찰하였다. 고찰한 내용을 근거로 다음과 같은 결과를 도출하였다. 첫째, 영유아의 자기조절력 중 인지조절은 배외측 전전두피질(DLPFC), 전측대상피질(ACC)의 발달과 신경전달물질의 활발한 생성과 활동으로 자기의도 인지, 행동계획 및 모니터링의 순으로 발달한다. 둘째, 영유아의 정서조절은 신경전달물질의 생성 및 활동과 전전두 피질(PFC)의 발달, 특히 안와 전전두피질(OFC), 전측대상피질이 발달함으로써 자기정서 인지, 타인정서 인지, 정서억제, 정서대처의 순으로 발달한다. 연구결과에 근거해서 영유아의 자기조절력 발달을 효과적으로 지원할 수 있는 방안에 대해 논의하였다. This study was aimed at examining the development of self-regulation from the perspective of neuroscience and investigating the stages through which the self-regulation of young children would develop. The following results were obtained based on the investigation. First, among the self-regulation of young children, cognitive regulation develops through the stages in the order of recognition of his/her own intentions, followed by behavior planning and monitoring, based on the development of dorsolateral prefrontal cortex(DLPFC) and anterior cingulate cortex(ACC) and the vigorous generation and activity of neurotransmitters. Second, emotional regulation of young children develops through the stages in the order of recognition of one`s own emotions, recognition of others` emotions, inhibition of emotions and emotional coping, also based on the development of prefrontal cortex(PFC), especially OFC and ACC area and generation and activity of neurotransmitters. Based on the findings, the measures to effectively support the development of self-regulation of young children were discussed.

모바일 어플리케이션을 활용한 메이커교육 기반 무용교육프로그램 제안

양유진 ( Yujin Yang ),문영 ( Young Moon ) 대한무용학회 2019 대한무용학회논문집 Vol.77 No.6

For this purpose, theoretical backgrounds and educational status of maker education that has been suggested as a educational method for the development of creative and convergent talents in preparation for the Fourth Industrial Revolution were intensively reviewed. In addition, an application 'Arts Play Card' developed by the Kookmin University Composite Arts Institute was investigated and a dance education program using this application was composed as a 12-session course. This study has a significance as a proposal of art education based upon maker education, and it is expected that studies on the development of dance education programs utilizing media teaching tools and applications will be invigorated on the basis of the results of this study.

예비유아교사를 위한 ‘유아 교과 논리 및 논술’ 교과목 운영현황 분석

양유진(Yang Yujin),이경진(Lee, Kyoung-jin) 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.17

본 연구는 ‘유아 교과 논리 및 논술’ 과목의 정체성과 방향성 확립을 위한 기초자료를 마련하는데 그 목적이 있다. 이를 위해 관련 현장에서 수행되고 있는 교과목 운영실태와 현황에 대해 살펴봄으로써 현재 ‘유아 교과 논리 및 논술’과목의 운영현황에 대해 이해하고 앞으로 나아가야 할 방향을 제시하고자 하였다. 그 결과, 첫째, 유아교원양성기관에서 운영되고 있는 ‘유아 교과 논리 및 논술’ 교과목은 과목명칭, 개설시기, 개설학점에 있어 학교에 따라 다양하게 운영되는 것으로 확인되었다. 둘째, 유아교과 논리 및 논술 과목의 운영현황을 살펴본 결과 수업목표 및 대상에 있어 지식의 ‘적용’과 ‘종합’에 대한 수업목표를 대상으로 유아와 교사의 두 영역에 대한 논리 및 논술을 다루고 있는 것으로 나타났다. 또한 수업내용에서는 논리, 창의성, 유아, 논술, 발달, 활동 등을 주로 다루는 것으로 나타났다. 수업방법에서는 이론식 강의와 토의, 토론 등의 전통적 교수법을 주로 사용하고 있는 것으로 나타났다. 마지막으로 가장 비중있게 사용되고 있는 평가방법은 ‘중간고사’와 ‘과제’, ‘기말고사’ 등으로 나타났다. 이러한 결과를 토대로 유아교사양성기관에서 유아 논리 및 논술 교과목에서 다루어져야 할 교육적 함의에 대해 논의하였다. This study was aimed at establishing the basic data to set the identity and direction of the course Logic and Essay Writing in Early Childhood . For this purpose, this study examined the current status of the course that has been implemented in the field, and analyzed the related textbooks in detail to understand. the scope currently covered in the course Logic and Essay Writing in Early Childhood and suggest a future direction. The results are as follows. First, it was found that the course Logic and Essay Writing in Early Childhood’ adopted in the training institutions for early childhood teachers was operated in various ways according to the school in terms of the name, time and credits of the course. Second, the analysis of the operation status of the course Logic and Essay writing in Early Childhood shows that the class covered the logic and essay writing on the two areas of young children and teachers with the application and integration of knowledge as the class objectives and subjects. In addition, the contents of the class mainly contained logic, creativity, early childhood, essay writing, development and activities. As for the teaching method, traditional teaching methods such as theory lectures, debates and discussions were mainly used. Lastly, the most important assessment methods included midterm exams, assignments, and final exams. Based on these results, this study discussed the educational implications that should be addressed in the course Logic and Essay Writing in Early Childhood in the training institutes for early childhood teachers.

예비유아교사의 완벽주의가 학업소진에 미치는 영향 :자기자비의 매개효과를 중심으로

양유진 ( Yang Yujin ) 한국유아교육학회 2022 유아교육연구 Vol.42 No.2

본 연구는 예비유아교사의 완벽주의와 학업소진, 자기자비의 관계를 탐색하고, 이를 통해 예비유아교사의 완벽주의와 학업소진의 관계에서 자기자비의 매개효과를 살펴보고자 하였다. 이를 위해 서울, 경기지역에 재학 중인 유아교육, 아동학을 전공하는 예비유아교사 273명을 표집하였다. 수집된 자료의 분석을 위해 SPSS 21.0을 사용하여 빈도분석, 기술통계, Pearson의 상관관계분석, 3단계 매개회귀분석을 실시하였다. 연구결과는 다음과 같다. 첫째, 예비유아교사의 완벽주의와 학업소진, 자기자비 간에는 통계적으로 유의한 상관관계가 있었다. 둘째, 예비유아교사의 자기자비는 완벽주의와 학업소진에서 완전 매개효과를 보였으며, 하위요인에서 일부 부분 매개효과를 보였다. 이러한 결과를 토대로, 예비유아교사교육에 있어서 교육적 함의에 대해 논하였다. This study was aimed at examining the relationship between preservice early childhood teachers' perfectionism, academic burnout and self-compassion, therefore investigating the mediating effect of self-compassion in the relationship between pre-service early childhood teachers' perfectionism and academic burnout. For this, 273 pre-service early childhood teachers majoring in early childhood education and children's study at universities and colleges in Seoul and the Gyeonggi region were sampled. The collected data were processed using SPSS 21.0 for the frequency analysis, descriptive statistics, the Pearson's correlation analysis and the 3 step regression analysis for mediation by Baron and Kenny (1986). The results are as follows. First, there was a statistically significant correlation between pre-service early childhood teachers' perfectionism, academic burnout and self-compassion. Second, self-compassion of pre-service early childhood teachers showed a complete mediating effect between the perfectionism and academic burnout, and some mediating effects on the sub-factors. Based on these results, the educational implications for the education of pre-service early childhood teachers were discussed.