• Journal of The Korean Association For Science Education
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• v.24 no.4
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• pp.687-708
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• 2004

The purpose of this study is to investigate the relationships between cognitive conflict and students' causal attributions and to find out what kinds of attributions affect successful resolution of cognitive conflict in learning physics. Twenty-nine college students who attended a base general physics course took an attribution test and a conceptual pretest related to action and reaction concept. Of these, twenty students who revealed alternative conceptions were selected. They were confronted with a discrepant demonstration and took part in the cognitive conflict level test, a posttest, and delayed posttest. Those students who experienced high levels of cognitive conflict were selected and interviewed to find out what kinds of attributions affect resolving the conflict. When confronted with the discrepant event, the students who attributed success outcomes to "effort" experienced higher levels of cognitive conflict than those to "task difficulty." However, those students who revealed high levels of cognitive conflict and attributed success outcomes to effort did not always produce conceptual change. They had different perspectives on effort and conducted different effort activities to resolve the cognitive conflict. In addition, these effort activities appeared to include their motivational beliefs, metacognitive and volitional strategies. The results of this study indicate that in order for the conflicts to lead to change, students need to have the perspective on effort implying the use of the self-regulated learning strategy and to conduct effort activities based on them. Beyond cold conceptual change, this article suggests that there is a management strategy of cognitive conflict in the classroom context.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.3 no.3
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• pp.219-234
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• 2009

This paper presents a novel approach for extracting simultaneously human daily activity patterns and discovering the temporal relations of these activity patterns. It is necessary to resolve the services conflict and to satisfy a user who wants to use multiple services. To extract the simultaneous activity patterns, context has been collected from physical sensors and electronic devices. In addition, a context model is organized by the proposed incremental statistical method to determine conflicts and to infer user intentions through analyzing the daily human activity patterns. The context model is represented by the sets of the simultaneous activity patterns and the temporal relations between the sets. To evaluate the method, experiments are carried out on a test-bed called the Ubiquitous Smart Space. Furthermore, the user-intention simulator based on the simultaneous activity patterns and the temporal relations from the results of the inferred intention is demonstrated.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06d
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• pp.344-349
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• 2007

유비쿼터스 환경에서 사용자의 편의성을 증대하기 위해 상황인지 기술이 필요하며 댁내의 다양한 기기의 정보를 수집하여 현재 상태를 파악하고 그에 맞는 서비스를 제공해야 한다. 하지만 다양한 종류의 디바이스, 센서, 서비스에 따라 생성하는 데이터의 형태와 의미가 다르기 때문에 이를 활용하는데 어려움이 있다. 본 논문은 다양한 기기와 환경에서 발생하는 데이터를 처리하여 사용자의 패턴을 수집하고 활용할 수 있는 연구 모델을 제안하고 구현한다. 구성요소는 실제 환경과 유사하게 Context를 생성할 수 있는 Emulator와 수집된 Context를 활용하여 패턴을 찾는 패턴 수집 서버와 수집된 데이터를 표현하는 시각화 도구로 구성된다. Emulator는 댁내에 존재할 수 있는 다양한 종류의 Context를 정의하고 서로간의 관계에 따라 Context를 생성하고 패턴 수집 서버는 Emulator에서 생성한 불완전한 Context를 통합하여 완전한 Context를 생성한다. 그리고 생성된 Context를 통해서 사용자의 서비스 이용패턴, Fault, Conflict를 발견했다.

• Korean Journal of Childcare and Education
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• v.11 no.5
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• pp.237-260
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• 2015

This study sought to explain the process of conflict between early childhood teacher and parent (T-P conflict) and was guided by the following three questions: (a) how does a T-P conflict begin? (b) how does a T-P conflict develop over time? and (c) how does a T-P conflict end? One hundred cases were provided by private kindergarten teachers with experiences of T-P conflict. A qualitative grounded theory design was used for analysis of the data. Open coding and axial coding resulted in six categories: (a) "causes of conflict" (b) "conditional context of conflict" (c) "state of conflict" (d) "amplification of conflict" (e) "problem solving strategies of conflict", and (f) "cease of conflict". The stage of selective coding drew out three core categories: (a) "prelude with tuneless instruments" (b) "duet for discords and concords, and (c) "splendid finale vs. unplanned intermission". Additionally the study raised the doubts about current early childhood education policies based on neo-liberalism and their impacts on relationships between teachers and parents.

• International Journal of Advanced Culture Technology
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• v.8 no.2
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• pp.68-75
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• 2020

The purpose of this study was to investigate the effect of police officers' participatory decision-making, supervisory quality and attitude, organizational justice on job satisfaction focused on mediating effect of work-life conflict. As a result of analysis of 185 police officers, the results were as follows. The causal relationships between participatory decision-making, organizational justice and work-life conflict, the ones between supervisory qualities and attitude, organizational justice, work-life conflict and job satisfaction, all of them reached the significance levels, not the causal relationship between supervisory qualityand attitude work-life conflict. Thus, the results for the interaction have shown, participatory decision-making and organizational justice and work-life conflict have negative influences on work-life conflict respectively, and supervisory qualities and attitude conflict, organizational justice conflict, work-life conflict have effect on job satisfaction with positive and negative effect. The Sobel-test showed that the Sobel-test statistic of the mediating effect of work-life conflict on causal relationships between organizational justice and job satisfaction is significant, but not in the mediating effect of work-life conflict on causal relationships between supervisory qualities and attitude and job satisfaction. According to the analytical results, work-life conflict is an important factor that can improve police officers' job satisfaction in the public organizational context with an open-oriented- system and culture for employees' participation in the process of decision making and equality and fairness for organizational management. It is also noted that work-life harmony for employees may be incompatible with the supervisor's perception of the work-oriented or prioritized-way in hierarchical organizations like police agencies.

• Korean Journal of Child Studies
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• v.20 no.1
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• pp.61-77
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• 1999

This study investigated characteristics of children's coping behaviors in the context of perceived controllability of stress in hassles with parent(s), friend-alienation, friend-conflict, and in learning situations. The subjects were 489 sixth grade children selected from seven elementary schools in Seoul. Statistical analysis was by ANOVA, Scheffe' test, and MANOVA. Major findings were that (1) Active, passive, aggressive, and avoidant coping differed by perceived controllability of stress in all 4 stress situations. The children who perceived a higher level of controllability were more active, and less passive, aggressive, and avoidant in coping with each hassle. (2) Perceived controllability was higher in learning related than in friend-conflict situations. Active, passive, and social support seeking coping behavior was higher in learning related stress situations than in friend-conflict situations. Avoidant coping behavior was lower in learning related than in friend-conflict situations.

• Journal of the Korean Society for Railway
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• v.7 no.2
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• pp.71-76
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• 2004

In this paper, we propose a pilot study to deploy the Railway Conflict Detection and Resolution System(RCDRS) in the context of Korean Railway(KORAIL). KORAIL plans to deploy in near future RCDRS, which is a decision support module placed on the top level of the Railway Traffic Management System(RTMS). This study entails the review of the state-of-art researches and projects in the field of the railway traffic management, as well as the analysis of the traffic characteristics of the major railroad lines in KORAIL. The analysis provides a basis to choose a solution approach for the railway conflict detection and resolution problem that each individual line faces. This study plays a role as a pilot study for a full systematic approach, in which interactions between lines require further advanced analysis to take the entire KORAIL lines into consideration rather than a myopic approach.

• KSCI Review
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• v.14 no.1
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• pp.165-173
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• 2006

To support service based on context-aware in ubiquitous computing environment, there are required context managing, context reasoning and context modeling technologies. In this paper, we propose a hierarchical ontology-based context management model and design a context-aware middleware based on this model for supporting active application adaptability and reflecting users' requirements dynamically in contextual changes. It also provides efficient support for inferencing, interpreting, acquiring and discovering various contexts to build context-aware services and presents a resolution method for context conflict which is occurred in execution of service. The proposed middleware can support the development and operation of various context-aware services, which are required in the ubiquitous computing environment.

• Korean Journal of Health Education and Promotion
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• v.32 no.3
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• pp.57-71
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• 2015

Objectives: The purpose of this study was to investigate the effect of problem drinking on life satisfaction and to analyze the mediating effect of family conflict and depression between two variables. Methods: The data of this study were selected in the 9th Korea Welfare Panel Survey(KYPS, 2014). The SPSS Ver. 18.0 statistical package was used for descriptive statistics analysis, correlation analysis, and hierarchical regression analysis. Results: The major findings were as follows; First, problem drinking was found to have a negative impact on family conflict, depression, and life satisfaction. Second, family conflict and depression were identified to cause decreasing life satisfaction. Third, family conflict and depression was found to have a mediating effect between problem drinking and life satisfaction. Conclusions: In order to enhance life satisfaction through overcoming problem drinking, drinking prevention programs and recreational programs based on economic and social context are required.

• Journal of The Korean Association For Science Education
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• v.18 no.3
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• pp.347-355
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• 1998

This paper reports on a way of using cognitive conflict in order to bring about conceptual changes. Cognitive conflict occurs when there is a discrepancy in students mind between everyday events and the scientific concepts which are used to explain these events. In order to overcome this conflict auxiliary scientific hypotheses can be introduced, which makes the resolution easier. In this paper, we suggest a new model of conceptual change and a model of instruction named 'structured contrastive activity' which consists of three stages: contrastive discussion by introducing the auxiliary hypotheses for clarifying the cognitive conflicts of students, observing the phenomena in idealised contexts in order to increase the status of the scientific concepts, laboratory experiments which bridge the two contexts.