2x2 성취목표지향성에 따른 자기조절학습 성향에 관한 연구: 기악 전공 대학생을 중심으로

김지현 ( Ji Hyun Kim ),오지향 ( Ji Hyang Oh ) 한국예술교육학회 2011 예술교육연구 Vol.9 No.3

본 연구는 음악대학 기악전공학생들의 2x2 성취목표지향성(숙달-접근, 숙달-회피, 수행-접근, 수행-회피)과 자기조절학습 성향(인지조절, 동기조절, 행동조절)에 대해 확인하고, 4가지의 성취목표지향성에 따른 자기조절학습 성향을 분석하는 것을 목적으로 한다. 이를 위해 기악전공 1-4학년 226명을 대상으로 설문조사를 실시하였으며 결과는 다음과 같다. 첫째, 기악전공학생들의 2x2 성취목표지향성 성향은 숙달접근지향이 가장 높고, 다음으로 수행접근, 숙달회피, 수행회피 순으로 나타났다. 2x2 성취목표지향성은 학년과 전공계열에 따라 유의미한 차이를 갖는 것으로 나타났다. 둘째, 기악전공학생들의 자기조절학습 성향은 동기조절요인의 성취가치가 가장 높고, 다음으로 인지조절요인의 정교화, 시연, 점검, 행동조절요인의 환경관리, 연습시간관리, 도움구하기, 동기조절요인의 자아효능감 순으로 나타났다. 또한 학년과 전공계열에 따라 유의미한 차이가 있는 것으로 나타났다. 셋째, 2x2 성취목표지향성과 자기조절학습의 관계는 숙달접근지향일 때 자기조절학습에 가장 유의미한 영향을 주는 것으로 나타났다. 숙달접근, 수행접근의 접근지향일수록 자기조절학습 전략을 더 잘 사용하며, 숙달회피, 수행회피의 회피지향성일수록 자기조절학습 전략을 덜 사용하는 것으로 나타났다. 이를 통해 기악전공학생들이 대학교육기간 동안 자기조절 능력이 계발될 수 있도록 하여 효과적인 연습을 할 수 있도록 제언 및 방안을 제시하였다. The purpose of this study is to investigate the tendency of the 2x2 achievement goal orientation and the self-regulated learning of undergraduate students who major in instrumental music, and to analyze the relationships between four goal- orientations (mastery-approach, mastery-avoidance, performance-approach and performance-avoidance goal) and self-regulated learning tendency (cognitive, motivational and behavioral regulation). For this purpose to be attained, 226 undergraduate students with majors in clavier, string, wind and percussion could be used for the analysis. The results of this study are as follows: First, the highest tendency of the 2x2 achievement goal orientation of undergraduate students who major in instrumental music is the mastery-approach goal, followed by performance-approach goal, then the mastery-avoidence goal, and finally the performance-avoidance goal. These 2x2 achievement goal orientations varied according to student`s grade and instrumental majors. Second, the highest tendency of the self-regulated learning of undergraduate students who major in instrumental music is the achievement value of the motivational regulation, followed by elaboration, rehearsal, monitoring of cognitive regulation, environment management, practice-time management, help-seeking of behavioral regulation and self-efficacy of motivational regulation. This self-regulated learning varied according to the student`s grad and the students instrumental major. Third, the relationship between the 2x2 achievement goal orientation and the self-regulated learning of undergraduate students who major in instrumental music is as follows: Self-regulated learning strategies were the most positively affected by the orientation mastery-approach goal, followed by the performance-approach goal, then mastery-avoidance goal and the performance-avoidance goal. In the case of the mastery-approach and performance-approach goal orientations, were the most frequently used of the self-regulated learning strategies, while the mastery-avoidance and performance-avoidance goal orientations, were found to be the least used of the self-regulated learning strategies. Therefore the result of this study analyzing the self-regulated learning tendencies of instrumental music majors according to the 2x2 achievement goal orientation, showed that this method ultimately helped them recognize and improve weaknesses in their self-regulated learning strategies. The result of this particular study can serve as a guide for effective practice and data for the development of a program to promote the 2x2 achievement goal orientation and the ability of the self-regulated learning of undergraduate students who major in instrumental music.

강원도 춘천에서 측정한 PM2.5의 탄소 및 이온성분 농도 특성 및 고농도 사례 분석

조성환,김평래,한영지,김현웅,이승묵 한국대기환경학회 2016 한국대기환경학회지 Vol.32 No.4

Anthropogenic emissions of PM2.5 in Chuncheon are considered to be low according to the national emissions inventory; however, the atmospheric PM2.5 concentrations have been reported to be higher than or at least similar to those measured in metropolitan (e.g. Seoul) and/or in industrial cities (e.g. Incheon, Ulsan). In this study, the concentrations of PM2.5 and its ionic and carbonaceous compounds were measured from Jan. 2013 to Dec. 2014 in Chuncheon, Korea to identify the characteristics of high PM2.5 concentration event. Average PM2.5 concentration was 34.6 μg/m3, exceeding the annual air quality standard (25 μg/m3). The most abundant compound was organic carbon (OC), comprising 26% of PM2.5 mass, followed by SO4 2-. Among 14 high concentration events, three events showed clearly enhanced contributions of OC, SO4 2-, NO3 - and NH4 + to PM2.5 under the fog events. One event observed in summer showed high concentration of SO4 2- while the high wind speeds and the low PM2.5/PM10 ratios were observed for the two high concentration events. These results indicate that the secondary aerosol formation under the fog events and high atmospheric temperature as well as the regional and/or the long-range transport were important on enhancing PM2.5 concentration in Chuncheon. Cluster analysis based on back trajectories also suggested the significant impacts of regional transport from China and metropolitan areas of Korea on PM2.5 in Chuncheon.

TiO₂/UV-A 시스템을 이용한 Cu(II)-EDTA의 광촉매 산화반응에서 TiO₂ 재사용 및 회수

이승목,Lee, Seung-Mok 한국물환경학회 2005 한국물환경학회지 Vol.21 No.1

$TiO_2-catalyst$ suspensions work efficiently in Photocatalytic oxidation (PCO) for wastewater treatment. Nevertheless, once photocatalysis is completed, separation of the catalyst from solution becomes the main problem. The PCO of Cu(II)-EDTA was studied to determine the reusability of the titanium dioxide catalyst. Aqueous solutions of $10^{-4}M$ Cu(II)-EDTA were treated using illuminated $TiO_2$ particles at pH 6 in a circulating reactor. $TiO_2$ was reused in PCO system for treatment of Cu(II)-EDTA comparing two procedures: reuse of water and $TiO_2$ and reuse of the entire suspension after PCO of Cu(II)-EDTA. The results are as follows; (i) Photocatalytic efficiency worsens with successive runs when catalyst and water are reused without separation and filtration, whereas, when $TiO_2$ is separated from water, the reused $TiO_2$ is not deactivated. (ii) The $TiO_2$ mean recovery (%) with reused $TiO_2$ was 86.4%(1.73g/L). Although the mean initial degradation rate of Cu(II)-EDTA and Cu(II) was lower than that using fresh $TiO_2$, there was no significant change in the rate during the course of the three-trial experiment. It is suggested that Cu(II)-EDTA could be effectively treated using an recycling procedure of PCO and catalyst recovery. (iii) However, without $TiO_2$ separation, the loss of efficiency of the PCO in the use of water and $TiO_2$ due to Cu(II), DOC remained from previous degradation and Cu(II)-EDTA added to the same suspension was observed after 2 trials, and resulted in the inhibition of the Cu(II)-EDTA, Cu(II) and DOC destruction.

LiMn₂O₄의 Mn용출 현상 연구를 위한 전기화학적 Mn(II) 정량 분석법

손화영,이민영,고형신,이호춘,Son, Hwa-Young,Lee, Min-Young,Ko, Hyoung-Shin,Lee, Ho-Chun 한국전기화학회 2011 한국전기화학회지 Vol.14 No.3

[ $LiMn_2O_4$ ] $Mn^{2+}$이온 용출현상 연구를 위한 간단하고 신속한 전기화학적 $Mn^{2+}$이온 분석법을 정립하였다. 이 분석법은 완충용액에서 $Mn^{2+}$이온이 $Mn^{4+}(MnO_2)$로 산화되는 원리를 이용한다. 최적조건 (pH 8.9 0.04 M $NH_3-NH_4Cl$ 완충용액 및 glassy carbon 작업전극)에서, Linear sweep voltammetry(LSV) 측정에 대해 $5{\mu}M-100{\mu}M$ (0.275-5.5 ppm) $Mn^{2+}$이온 범위에서, differential pulse voltammetry (DPV) 측정에 대해 $0.2{\mu}M-10{\mu}M$ (0.011-0.55 ppm) 범위에서 선형적 응답 특성을 확인하였다. 또한, 측정용액에 리튬 이차전지용 전해액 ($LiPF_6$, EC, EMC)이 첨가할 경우, 첨가량에 비례하여 $Mn^{2+}$ 이온의 산화 전류 감소하였는데, 이러한 감소의 주요 원인은 EMC보다는 $LiPF_6$와 EC성분임을 확인하였다. A simple and rapid electrochemical method for the quantitative analysis of $Mn^{2+}$ ion is demonstrated with a view to examine the $Mn^{2+}$ dissolution behavior of $LiMn_2O_4$. The method described herein is based on the oxidation reaction of $Mn^{2+}$ to $Mn^{4+}(MnO_2)$ in aqueous buffer solution. Under the optimum condition (pH 8.9 0.04 M $NH_3-NH_4Cl$ buffer solution and glassy carbon working electrode), the linear range of $5{\mu}M-100{\mu}M$ (0.275-5.5 ppm) [$Mn^{2+}$] is obtained for the Linear sweep voltammetry(LSV) and $0.2{\mu}M-10{\mu}M$ (0.011-0.55 ppm) [$Mn^{2+}$] for the differential pulse voltammetry (DPV), respectively. It is also noted that the oxidation reaction of $Mn^{2+}$ ion is reduced with increasing amount of the electrolyte ($LiPF_6$, EC, EMC) added to the measuring solution, which is found to be mainly due to $LiPF_6$ and EC rather than EMC.

주성분분석을 이용한 간선도로 구간 별 차량 당 CO₂ 다량 배출구간 평가

이윤석,김다예,오흥운,Lee, Yoon Seok,Kim, Da Ye,Oh, Heung Un 대한토목학회 2013 대한토목학회논문집 Vol.33 No.5

차량의 $CO_2$ 배출량은 통행속도에 따라 다르게 나타난다. 또한, 차량의 통행속도는 도로의 종류나 위치, 시간대, 교통량 등에 따라 다르게 나타난다. 본 논문에서는 주성분분석(PCA : Principal Component Analysis)을 이용하여 간선도로 구간 별 시간대 별로 차량 당 $CO_2$ 다량 배출구간을 판별하여 평가하였다. 분석 결과, 주성분분석 결과 제 1주성분과 제 2주성분으로 성분이 구분되는 것을 알 수 있었고 시간대가 각 주성분을 설명할 수 있는 주요 성분임을 알 수 있었다. 제 1주성분의 경우 새벽시간대와 오후시간대로 주성분을 설명할 수 있었다. 제 2주성분의 경우 오전, 오후 첨두시 시간대로 주성분을 설명할 수 있었다. 그리고 주성분 점수를 산출하여 분석한 결과 제 1주성분의 경우 새벽시간대에도 정체현상이 지속되는 잠원IC~한남대교 구간이 타 구간에 비해 주성분 점수가 높게 나타났고 제 2주성분의 경우 오전,오후 첨두시의 정체현상이 극심한 서울시 접속부와의 이격이 가까운 구간에서 주성분 점수가 높게 나타났다. 결과적으로 주성분 점수를 통하여 차량 당 $CO_2$ 다량 배출 구간을 판별할 수 있었다. $CO_2$ emissions of vehicles vary with vehicle's speeds. In addition, the speeds vary with road type, location, time and traffic volume. In this paper, the section in which a large quantity of $CO_2$ emissions per vehicle is exhausted is determined and analyzed with principal component analysis(PCA). In results of analysis, the principal components analysis were divided into two principal components. It had been identified that the main component was the time zone one which is able to explain each components' role. The first principal component could explain the role of a major component on $CO_2$ emissions per vehicle in the early morning and afternoon hour, respectively. The second principal component could explain the role of the component on $CO_2$ emissions per vehicle in the morning and afternoon peak hours, respectively. Therefore, the section in which a large quantity of $CO_2$ emissions per vehicle could be deterimined by PCA scores.

초대 교회에서는 어떻게 문제를 해결했을까?: ‘예루살렘 회의’(갈라 2,1-10)와 시노달리타스

김승부(Kim, Seungboo) 수원가톨릭대학교 이성과신앙연구소 2022 이성과 신앙 Vol.72 No.-

In its document Synodality in the Life and Mission of the Church, the International Theological Commission presents the 'Council of Jerusalem' reported in Acts 15:1-35 and Gal 2:1-10, as one of the sources that can provide norms for living the spirit of synodalitas in the Catholic Church. In the Council of Jerusalem, the early church dealt with a problem: is it required for Gentile Christians to observe the Mosaic Law or not. However, the document of the International Theological Commission examines the contents of Acts 15:1-35 in detail, not specifically dealing with Gal 2:1-10. By studying Gal 2:1-10, this article would like to get the inspiration needed to live more abundantly synodalitas in the Catholic Church today. First of all, for the study of Gal 2:1-10, it is analyzed the structure of the text, and then examined what contributed to the resolution of the issues raised at the Council of Jerusalem. As a result, this study allows us to know more deeply the meaning of Christian encounters in God with the spirit of synodalitas, and the value of the discernment, of the respect of the ecclesiastical authority, of the active participation of all Christians in the ecclesiastical meetings, of the listening to each other, and of the relationship between communion and charity. 교황청 국제신학위원회에서는 󰡔교회의 삶과 사명 안에서 공동합의성󰡕이라는 문헌에서, 가톨릭교회 안에서 시노달리타스의 정신을 사는 데 있어서 규범을 제시할 수 있는 원천 중 하나로, 사도 15,1-35와 갈라 2,1-10에서 보도하는 ‘예루살렘 회의’를 언급한다. 예루살렘 회의는 초대 교회에서 이방계 그리스도인에게 모세 율법 준수를 요구할 것인가를 다룬 회의였다. 하지만 교황청 국제신학위원회의 상기 문헌은 사도 15,1-35의 내용은 상세히 살피고 있지만, 갈라 2,1-10은 구체적으로 다루지 않는다. 그러므로 필자는 갈라 2,1-10을 연구하여, 오늘날 가톨릭교회 안에서 시노달리타스의 정신을 보다 풍요롭게 사는 데에 필요한 영감을 얻고자 한다. 이것이 본 논문의 목적이다. 이 연구를 위해서 필자는 먼저 이 성경 본문의 구조를 분석하고, 그다음 무엇이 예루살렘 회의에 상정된 문제가 해결되는 데 기여하는지를 살폈는데, 이 연구는 시노달리타스를 지향하여 이루어지는 그리스도인의 만남이 하느님 안에서 가지는 의미와, 식별 및 교회의 권위에 대한 존중, 교회의 모든 구성원의 참여와 서로에 대한 경청의 가치, 그리고 친교와 사랑의 관계를 보다 깊이 알게 해 주었다.

Medicinal Chemistry : Lack of association between DRD2 Taq1A gene polymorphism and smoking cessation therapy: a meta-analysis

( Hye Duck Choi ),( Wan Gyoon Shin ) 영남대학교 약품개발연구소 2015 영남대학교 약품개발연구소 연구업적집 Vol.25 No.-

Recent studies have reported that genetic factors are significantly associated with smoking behavior, but the influence of the smoking behavior-related genes on smoking cessation treatment is still not clear. We analyzed the smoking cessation outcomes among previously reported studies involving participants who underwent smoking cessation therapy by comparing the following DRD2 Taq1A gene polymorphism using meta-analysis. In total, nine studies including 2,851 participants were assessed and the A1 allele carriers and A2 homozygotes were compared with respect to smoking cessation outcomes by meta-analysis. No significant association was observed for the main analysis (OR = 0.900; 95% CI, 0.751 . 1.078). In subgroup analysis, three studies were assessed by comparing participants with the A1/A1, A1/A2, and A2/ A2 genotypes. A significant association between the DRD2 Taq1A polymorphism and smoking cessation therapy was observed between the A1/A1 and A1/A2 genotypes (OR = 2.967; 95% CI 1.737 . 5.068) and between the A1/A2 and A2/A2 genotypes (OR = 0.547; 95% CI 0.392 . 0.762), but not between the A1/A1 and A2/A2 genotypes (OR = 1.269; 95% CI 0.746 . 2.157). This study is the first meta-analysis to evaluate and quantitatively integrate the association between the DRD2 Taq1A polymorphism and smoking cessation therapy. A significant relationship between DRD2 Taq1A polymorphism and smoking cessation therapy was not observed.

Medicinal Chemistry : ELSEVIER ; Design and synthesis of novel 2,4-diaryl-5H-indeno[1,2-ь]pyridine derivatives, and their evaluation of topoisomerase inhibitory activity and cytotoxicity

( Tara Man Kadayat ),( Chan Mi Park ),( Kyu Yeon Jun ),( Til Bahadur Thapa Magar ),( Ganesh Bist ),( Han Young Yoo ),( Young Joo Kwon ),( Eung Seok Lee ) 영남대학교 약품개발연구소 2015 영남대학교 약품개발연구소 연구업적집 Vol.25 No.-

For the development of potential anticancer agents, We designed and synthesized 30 new 2,4-diaryl-5H-indeno[1,2-ь]pyridine derivatives containing aryl moiery such as furyl, thienyl, Pyridyl, and phenyl at 2-and 4-position of 5H-indeno[1,2-ь]pyridine. They were avaluated for topoisomerase I and ll inhibitory activity, and cytotoxicity against several human cancer cell lines. Among prepared 30 compounds, 7,8,9,10,12,14,16,19,20,22, and 23 with 2-or 3-thienyl either at 2-or 4-position of central pyridine showed the significant or moderate topoisomerase ll inhibitory activity. Compoumds 7,8,11,12,13, and 22 with 2-furyl, 2-thienyl or 3-thienyl at 2-position of central pyridine showed the significant or moderate topoisomerase I inhibitory activity. Especially. compound 12 with strong topoisomerase ll inhibitory activity at 100 um and 20 um. and moderate topoisomerase I inhibitory activity displayed strong cytotoxicity against several human cancer cell lines. ⓒ 2014 Elsevier Ltd. All rights reserved.

The Effect of O2O Platform Quality on Relationship Quality and Personal Behavior Value

Seung-Gon Choi,Ho-Gyu Choi 국제문화기술진흥원 2019 International Journal of Advanced Culture Technolo Vol.7 No.4

This study verified the research hypothesis by establishing a research model to achieve the purpose of empirical analysis on the relationship between O2O platform quality and personal behavioral value and relationship quality. The main results of this study are as follows. First, information quality (hypothesis 1-1), system quality (hypothesis 1-2), service quality (hypothesis 1-3), perceived product quality (hypothesis 1-4), perceived price (Hypothesis 1-5) was statistically significant, indicating a positive effect on individual behavioral value. Second, as a result of empirical analysis of the relationship between O2O platform quality and relationship quality, hypothesis 2, information quality (hypothesis 2-1), perceived product quality (hypothesis 2-4), and perceived price (hypothesis 2-5) While there was a positive effect on quality, system quality (hypothesis 2-2) and service quality (hypothesis 2-3) were not statistically significant. Third, as a result of verifying the relationship between the relationship quality and personal behavior characteristics of hypothesis 3, as the quality of personal behavior improved as the quality of relationship improved, it was required to continuously improve and strengthen the relationship quality.

Photoshop Vanishing Point를 이용한 2.5D 제작에 관한연구

윤영두,최은영 한국콘텐츠학회 2009 한국콘텐츠학회논문지 Vol.9 No.12

Thanks to computer graphic technology development, graphic design programming is easily accessible by any home computer user today since it is free from the burdens of complicated 알고리듬 or the expensive graphic tools that were required in the past. The term 알고리듬 2.5 is commonly used by computer graphic designers to refer to 2D, a form of pseudo-3D. In this study, by using 2.5D, which was previously utilized for strengthening visual effects and engine efficiency, together with Adobe Photoshop along with After Effects, I will incorporate these into motion graphics. Today, motion graphics dominate the advertisement and image markets. Since viewers have developed higher expectations, a more dynamic 3D space graphic technology is preferred over the outdated 2D basis. In this study, I will produce a 2.5D image which is generated through a vanishing point filter of Adobe Photoshop and After Effects based on still image information and captured at an angle of Axonometric Projection. Also, I will compare the effectiveness of the production process and camera angle flexibility between the previous 3D process and new 2.5 D process. 컴퓨터 그래픽 기술의 발달로 과거의 복잡한 알고리듬과 고가의 장비를 통하여 제작이 가능했던 특수영상들이 가정용 컴퓨터의 고사양화와 사용이 편리화 된 그래픽 프로그램으로 인하여 영상 전문가가 아니더라도 제작이 가능해 졌다. 2.5D는 컴퓨터 그래픽 제작자 사이에서 사용되어지는 단어로 3D와 같이 보이는 2D 이미지의 시각적인 형태(form of pseudo-3D)를 일컫는 말이다. 본 연구에서는 과거 게임의 시각적인 효과 증진과 엔진의 효율성을 위하여 사용되어지던 2.5D 제작기술을 Adobe사의 Photoshop과 After Effects를 이용하여 모션 그래픽에 응용하고자 한다. 현대 사회에서 모션 그래픽은 광고와 영상시장에서 큰 비중을 차지하고 있으며, 시청자들의 눈이 시각적으로 고급화되어짐에 따라 과거의 2D 기반의 제작과정에서 벗어나 입체적이고 다이내믹한 3D 공간상으로 제작 기술이 확장되고 있다. 본 연구에서는 Axonometric Projection에 의한 각도로 촬영 되어진 스틸 이미지에서 물체의 삼면의 정보를 추출하고, Adobe Photoshop의 Vanishing Point Filter와 After Effects를 이용하여 소실점의 추적을 통한 이미지 상의 물체를 2.5D 물체로 제작하고자 한다. 기존의 3D 프로그램에서의 제작 프로세스와 새로운 2.5D 제작 프로세스의 비교, 카메라 앵글의 자유성을 비교함으로 제작의 효율성에 대한 연구를 한다.