• 제목/요약/키워드: causal materials

검색결과 79건 처리시간 0.029초

커뮤니케이션 상황과 청소년의 공격성 간의 관계 분석(I) (A Relationship between Communication Situation and Adolescents' Aggression)

  • 김정옥
    • 대한가정학회지
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    • 제34권3호
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    • pp.89-105
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    • 1996
  • The purpose of the study was to investigate the causal relationships between communication situation - communication apprehension(CA), family communication orientation(FCO), individual viewing motives and perceived realism of aggressive films - and aggression. The data from 193 high school students were analysed by SAS program. The respondents were asked to complete the self-report questionnaires, and the data were analysed by Cronbach's to the reliability, factor analysis, frequencies, percentage, means, standard deviation, Pearson's correlation coefficient, Duncan's multiple test, multiple regression, and path analysis, The results showed that CA was positively related to both aggression against the materials, and potential aggression. FCO had no direct effect on aggression but concept-oriented family affected indirect effect on aggression through viewing motives. The ritualistic motives were more positively related to aggression and identity than instrumental motive.

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Lead-Lag Relationships between Import Commodity Prices and Freight Rates: The Case of Raw Material Imports of Korea

  • Kim, Chi-Yeol;Park, Kwang-So
    • Journal of Korea Trade
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    • 제23권2호
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    • pp.34-45
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    • 2019
  • Purpose - This study investigates the lead-lag relations between the prices of major commodities imported into Korea and corresponding shipping freight rates. This paper aims to provide implications for cross-market causal relations between related economic segments. Design/Methodology - For economic long-run equilibrium between commodity prices and freights, a Johansen (1988) cointegration test is employed first. Then, Granger (1987) causality tests are performed under the vector error correction model (VECM) framework. Findings - The results indicate that the direction of causality varies by raw materials, which is attributable to different economic mechanisms in the corresponding shipping transportation sectors. In addition, the significance of causality becomes blurred during the post-2008 period. Practical Implication - Corporate managers in commodity trading, steelmaking, power generation, and oil refinery sectors can take advantage of the findings in this study as identifying leading economic indicators can be helpful for decision making in both short- and long-term strategies. Originality/value - This study is the first attempt to analyze the inter-relations between commodity prices and corresponding freight rates focusing on raw material imports of Korea.

6시그마 도구를 활용한 대학도서관 멀티미디어 서비스 개선 변수 도출에 관한 연구 (A Study on Identifying Factors Affecting Improvement for Academic Libraries Multimedia Services Using Six Sigma Methodology)

  • 노동조;남민석
    • 정보관리학회지
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    • 제30권1호
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    • pp.111-129
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    • 2013
  • 본 연구는 6시그마 DMAIC 방법론의 정의(Define)와 측정(Measure) 단계의 기법들을 활용하여 대학도서관 멀티미디어 서비스 개선에 영향을 미치는 주요 변수들을 도출하였다. 이를 위하여 S대학교 중앙학술정보관의 사례를 중심으로 현장 사서들의 브레인스토밍, X-Y Matrix와 특성요인도 작성, 도서관 홈페이지를 통한 이용자 의견 분석, 이용자 인터뷰 등을 통하여 대학도서관 멀티미디어 서비스의 프로세스를 분석하고, 핵심 품질특성을 지표화하였다. 그리고 Process Map과 특성요인도를 통하여 멀티미디어 서비스에 영향을 미치는 잠재원인변수들을 도출하고, 도출한 잠재원인변수를 X-Y Matrix와 Pareto Chart에 의하여 우선순위화하여 멀티미디어 서비스에 영향을 미치는 주요 요인으로 '자료 선정 전담자 유무', '자료 선정주기', '독립된 멀티미디어실 운영 유무', '자료 배가 방법', '인기자료 안내 여부', '입수자료 통보 여부', '신간 자료 안내 방법', '구입주문처리 방법', '주문자료 진행사항 점검 주기', '자료 신청자 유형', '자료 신청 방법', '반납 시 자료 상태 점검 여부', '소장자료 목록 안내 방법', '연체자료 회수방법'의 14개 변수를 도출하였다.

창의·인성교육 기반 지구과학 수업모형 제안 (A Suggesting of the Earth Science Lesson Model Based on the Creativity·Character Education)

  • 문병찬
    • 대한지구과학교육학회지
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    • 제8권3호
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    • pp.297-308
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    • 2015
  • The purpose of this study was to suggest the earth science lesson model based on the creativity character education. To conduct this study, the curriculum revision in 2009 was analyzed by the causal mapping method. One after another, the creativity character education and earth system education were analyzed by the same method. Through as mentioned above, the key words which have relating concepts each other were picked out. Lastly, the key words were connected and compounded for the earth science lesson model based on the creativity character education. The model indicates that the earth science lesson based on the creativity character education requires the reconstructs of the processing and contents of the lesson. In other words, the teaching/learning must be progressed as corresponding between scientific facts and mental recognition, scientific concepts and compounding thinking skill, scientific laws and reconstructing thinking skill. In contents were reconstructed as relating to knowledge, creativity, characters and guidance counseling. The results of this study suggested the earth science lesson model based on the creativity character education needs developing and applying teaching/learning materials and managing discussing and cooperative learning.

New method for sclerotial isolation of Sclerotium spp. from infested soil

  • Kim, Yong-Ki;Kwon, Mi-Kyung;Shim, Hong-Sik;Yeh, Wan-Hae
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.120.1-120
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    • 2003
  • White rot on Allium species recently had a high incidence as increased cultivating areas of tropical garlic types in Korea. Two types of Sclerotium have been known as causal agents producing different size and shapes of sclerotia in infested fields. We developed a new method for isolation of two types of sclerotia from infested field soils that can be used for ecological study of sclerotium spp. and establishment of control strategy. Soil samples collected from heavily infested fields were evenly mixed and placed on a automatic sieve shaker connected with tap water. After 10 min. of shaking, residues on 0.5mm and 0.25mm sieve were separately collected and suspended with 70% sugar solution, which method floats sclerotia in aqueous layer. Then, floated fraction was carefully separated and mixed with a same volume of 1% sodium hypochlorite solution to differentiate with organic materials. This method provides direct count of sclerotia under dissecting microscopy.

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급성 외상성 비골근 탈구의 수술적 치료 (Surgical Treatment of Acute Traumatic Peroneal Tendon Dislocation)

  • 최은석;박홍기
    • 대한족부족관절학회지
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    • 제9권2호
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    • pp.179-183
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    • 2005
  • Purpose: Acute traumatic peroneal tendon dislocation is relatively rare disease and their methods of treatment is controversial, that we want to assess the characters and outcomes of 8 patients with early surgical treatments. Materials and Methods: We evaluated the results of 8 patients who can follow up more than 28 months using sex, age, side, injury sports, concomitant injuries, Eckert and Davis classifications, anatomic variants, results and complications. Results: All of 8 patients was male, average age was 27, Right side was dominant (5/8), causal sports was variable. Concomitant injuries were distal tibiofibular ligament syndesmosis injury, Peroneus longus injury, lateral collateral ligament injury. On behalf of Eckert and Davis classifications 5 patients were Grade 1 and other 3 patients were Grade 2. 1 case of low lying peroneus brevis belly was found as an anatomic variants. 6 of patients shown excellent results, 2 patients were good. Post operative complications were discomfort of operation site and mild limited dorsiflexion on ankle joint. Conclusion: Careful history and physical exam is important for diagnosis. And surgical treatments can expect good results.

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PMP(Personal Multimedia Player) 학습자의 기본심리욕구 요인이 학습만족과 학습전이를 통해 학업성취도에 미치는 영향 (The Effect of PMP Learner Basic Psychological Need factor on Academic Achievements through Learning Satisfaction and Learning Transfer)

  • 이은혜;권두순
    • 디지털산업정보학회논문지
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    • 제13권1호
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    • pp.213-227
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    • 2017
  • The recent entry into information society as well as the development and universalization of the Internet through rapid development of ICT technology produced a new educational method called PMP learning. PMP learning overcomes restrictions of previous education methods in terms of time and space and allows the learners to customize their learning environments according to their leads, providing voluntary education that centers on the learners. This study aims to verify the causal relationship in academic achievement of PMP learners through the theory of basic psychological desire, learning satisfaction, and learning metastasis. In order to accomplish this, a study model which applies perceived autonomy, perceived competence, and perceived relationship, which are major variables of the theory of basic psychological desire, was presented. For practical verification of the study model, survey analysis was conducted for students of R High School in Hamyang. Through this, the study aims to provide basic materials for improving the academic achievement of learners in PMP learning. It also plans to suggest educational effects that can be obtained by supporting intrinsic motivation of learners.

새로운 몸의 구조적 개념에 따른 공간의 관계성 변화에 관한 연구 (A Study on Changes in the Relationship of Spaces with a New Structural Concept of Body)

  • 이종세;김주연
    • 한국실내디자인학회논문집
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    • 제16권1호
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    • pp.48-55
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    • 2007
  • Proceedings in a new field of sciences and technologies like genetic engineering challenge to conventional concepts. It demonstrates a certain disappearance in conventional concepts that dominants our perceptions, such as organic, mechanical, and dichotomic concept of informative materials, and that is to be extended as a potential possibility. Then, what is a new space where our bodies that feel and cherish in their mind should live in these days as well as it makes senses by itself and should affect the principle that makes worlds? In addition, this study proposes a frame in the analysis in order to understand a section of modern designs with the question of 'what is the change in the relationship between relative structures in spaces and objects from a design point of view according to new structural concepts of body?' The major point of this analysis can be realized based on the assumption of the extension of the characteristics in the change of structural relationship in the aspect of post structuralism that includes non-structuralized relationship represented in modern philosophy, arts, and architectural works. Then, it can be accomplished as positive ideas in the foundation of space designs in future including the understand of 'new structural relationship' that can't be expressed as rationality and causal sequence by considering how the experiment conducted using several topics on body can be projected onto spaces through the process applied in the experiment.

Carbon dioxide emissions, GDP per capita, industrialization and population: An evidence from Rwanda

  • Asumadu-Sarkodie, Samuel;Owusu, Phebe Asantewaa
    • Environmental Engineering Research
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    • 제22권1호
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    • pp.116-124
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    • 2017
  • The study makes an attempt to investigate the causal nexus between carbon dioxide emissions, GDP per capita, industrialization and population with an evidence from Rwanda by employing a time series data spanning from 1965 to 2011 using the autoregressive distributed lag model. Evidence from the study shows that carbon dioxide emissions, GDP per capita, industrialization and population are co-integrated and have a long-run equilibrium relationship. Evidence from the Granger-causality shows a unidirectional causality running from industrialization to GDP per capita, population to carbon dioxide emissions, population to GDP per capita and population to industrialization. Evidence from the long-run elasticities has policy implications for Rwanda; a 1% increase in GDP per capita will decrease carbon dioxide emissions by 1.45%, while a 1% increase in industrialization will increase carbon dioxide emissions by 1.64% in the long-run. Increasing economic growth in Rwanda will therefore reduce environmental pollution in the long-run which appears to support the validity of the environmental Kuznets curve hypothesis. However, industrialization leads to more emissions of carbon dioxide, which reduces environment, health and air quality. It is noteworthy that the Rwandan Government promotes sustainable industrialization, which improves the use of clean and environmentally sound raw materials, industrial process and technologies.

여자 중학생의 흡연경험에 영향을 미치는 예측요인에 관한 연구 (A Study on Factors Affecting Experience of Smokingin Middle School Girls)

  • 김경희;정혜경
    • Child Health Nursing Research
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    • 제11권1호
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    • pp.14-22
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    • 2005
  • Purpose: This study was designed to identify the factors affecting the experience of smoking in middle school girls. A comprehensive analysis of individual and family factors was used. Method: The students in this descriptive survey on causal relations were 433 girls enrolled in middle schools selected by convenience sampling. The data were collected in November-December 2003 and logistic regression analysis was used to build a forecast model. Findings: The findings showed the following, 1) Individual factors such as grade, alcohol consumption, sexual experience and the frequency of exposure to pornographic materials, and 2) family factors such as parental living arrangement were significant factors. Conclusion and Recommendation: The experience of smoking among Korean middle school girls was associated not only with individual factors, but also with family factors, which exert a strong influence on health behavior. There is therefore a need for school-based smoking prevention programs, which deal comprehensively with these factors that influence smoking. It is recommended that a program be developed that will help to control the variables identified in this study along with follow?up study to verify the model.

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