• Journal of the Korean Mathematical Society
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• v.37 no.4
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• pp.645-655
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• 2000

We calculate the R(G)-algebra structure on the reduced equivariant K-groups of two-dimensional spheres on which a compact Lie group G acts as a reflection. In particular, the reduced equivariant K-groups are trivial if G is abelian, which shows that the previous Y. Yang's calculation in [8] is incorrect.

• Journal of Korean Port Research
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• v.5 no.2
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• pp.77-84
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• 1991

This paper is compared with fourier series and least square polynomial fit and interpolation to mechanism stated number in electro-optical distance measuring instrument. Systematic instrumental errors occurring in electro-optical systems include uncertainties in the position of the electrical center of the transmitter, uncertainties in the effective center of the reflectors. frequency drift and instrument nonlinearity. Microwave systems are affected by uncertainties in the electrical centers of the master and remote units and by a phenomenon called group swing or reflection. As the result of this study, mechanism stated number will be used as verification of electro0optical measuring instrument to distance measurement.

• Korean Journal of Family Social Work
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• no.62
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• pp.103-139
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• 2018

The purpose of this study was to explore the social workers' reflections developed during the participatory action research seeking practice methods in the community welfare center single parent self-help groups. Nine social workers and researchers sharing difficulties in the community welfare center single parent self-help group practice were involved in the participatory action research. We performed a circulatory research repeating 'plan-action-reflection-replan' cycles through ten sessions of research meetings including peer supervision in parallel with 4 self-help group practices. Multiple practice methods were derived as the result among which change in the social workers' perception was the key. We focused on the result that the social workers' perception was changed by reflections from participatory action research and the contents of the reflections were qualitatively analyzed using materials acquired during the study. As a result the following 5 themes were derived; 'recognition and worry on the lack of appropriate practice for the self-help group', 'specification of the social workers' role based on the changed perspective on the member-social worker relation', 'confirmation of the possibility of the concerned person initiated practice', 'detailed understanding of the single parent self-help group in the community welfare center', and 'renewed recognition of the development of the single parent self-help group in the community welfare center'. Based on these results, empowerment and reflection/reflective practice for single parent self-help group in the community welfare center were discussed.

• The korean journal of orthodontics
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• v.23 no.3 s.42
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• pp.375-389
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• 1993

The delivery of optimal orthodontic treatment is greatly influenced by a clinician's ability to predict and control tooth movement achieved by applying known force systems to the dentition. It is important to determine the location of the center of resistance of a tooth or group of teeth to better understand the nature of their displacement characteristics under the various force levels. The purpose of this study was to define the location of the centers of resistance of various units of the upper anterior segment for lingually directed 100gm and 200gm force in a dry human skull. The units investigated were composed of four incisors and six anterior teeth. In addition, the effect of change in force magnitude on the location of the center of resistance of these units was investigated. The laser reflection technique was used to measure the initial displacements of the consolidated teeth under loading. The results were as follows: 1. The instantaneous center of resistance for the four anterior teeth was located vertically between level 4 and level 5-that is, at $37.4\%$ apical to the cementoenamel junction level. 2. The instantaneous center of resistance for the six anterior teeth was located vertically just beneath level 5-that is, at $50.3\%$ apical to the cementoenamel junction level. 3. Increasing force levels had little effect on the location of the center of resistance of a given unit. 4. The location of the instantaneous center of resistance shifted apically as the number of dental units consolidated increased.

• The Journal of the Korea Contents Association
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• v.6 no.3
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• pp.108-115
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• 2006

e-Learning contents are composed of compounding multimedia data. It requires many professionals in contents development stage. The process of e-learning contents development can be seen as a collaborative work. In the perspective of a collaborative work process, the whole process of e-learning contents development would be regarded as collaborative work process for each participant as well as for whole group members. Most of collaborative works in contents development field are widely distributed. Members of work groups require workspaces for sharing information and communicating each other. In addition to workspaces, it also needs to support collaborative reflection such as planning for collaborative work and monitoring for work process. This paper is intended to develop the reflective collaborative work system for e-Learning contents development in order to support the systemic process of e-learning contents development. The reflective collaborative work system is composed of four supportive parts: work flow management, personal workspace, collaborative workspace, and collaborative reflection.

• Journal of the Korean Chemical Society
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• v.60 no.2
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• pp.137-143
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• 2016

Effective teaching and learning is a continuous process of monitoring and re-organization of teaching method, so to benefit both students and educators. Reflective journal writing is an effective method for students to reflect on their learning experience about a new concept or subject taught and at the same time enables educators to improve on their academic skills. In the present paper, we have examined and evaluated the effectiveness of the Uncritical Inference Test (UIT) that was conducted in our basic organic chemistry course through a systematic network built based on students’ reflective writing. From the data analysis, the UIT has benefited students in three dimensions, namely cognitive, affective and group learning domains. Moreover, the UIT activity instilled an active learning environment in organic chemistry classroom and deeper learning among chemistry students as shown in the collected data. In future, this activity could be adapted as a teaching method to enhance students’ critical thinking skills and question-asking capability in other teaching courses.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.895-900
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• 2009

Myth is defined as hidden rules or practices in a particular group universally represented in the overall society. The implied meanings in the myth is the result of reflection of culture, and the understanding of the reflection seeps into the society, making cycle structure. In many mythological stories, an act of looking has broad meanings. For example, in the story of Orpheus, Medusa and Tiresias, the act of looking brought about misfortune. The implication of these stories is that it pushes 'what should be not done' rather than 'what should be done', highlighting taboos across the society. This study seeks to present a case of image analysis by interpreting the image of current commercials through the relationship between looking back and taboos among acts of looking in mythological stories.

• Proceedings of the CALSEC Conference
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• 2001.08a
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• pp.523-532
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• 2001

Despite the social interest in eBook and its advantages, as a result of each industry using different document formats, it is difficult to exchange or share eBook contents. And this hindered the activation of eBook market. The U.S. and Japan have realized the importance of setting a standard for eBook document format and have established eBook standard with government agencies and related industries and in Korea, also, through Working Group for Standardization Committee of EBK, eBook industry standard, EBKS, was established. EBKS provides more advantages than HTML or PDF and the basic format is XML. The objective of EBKS is exact exchange of eBook content, reflection of characteristics of Korean publication environment, simplicity in creating, and convertibility with other standards. Meanwhile, in the DTD aspect, EBKS includes static document structure, extension mechanism, vertical writing, multi-column editing and reflection on the characteristics of Korean and proverbs. For exchanging style, content and style are separated using XSL-FO and XSL-FO is recommended for printing. Also, EBKS metadata is composed of do-metadata that does not use qualifier and x-metadata for extension to provide easiness in usage and ability to exchange and convert.

• The Korean Journal of Emergency Medical Services
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• v.18 no.2
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• pp.7-20
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• 2014

Purpose: This study aims to assess the reliability and validity of a Korean version of the satisfaction with simulation experience (SSE) scale for low-, medium-, and high-fidelity simulations among paramedic students. Methods: Exploratory factor analysis with varimax rotation was used to determine construct validity. Cronbach's alpha was calculated to assess internal consistency reliability. Results: Cronbach's alpha for the overall scale was .841. Exploratory factor analysis yielded a three-factor structure composed of clinical learning, clinical reasoning and debriefing and reflection. Each of the subscales had high internal consistency, with Cronbach's alphas of .852, .790 and .913, respectively. With respect to year, freshmen scored the highest on the SSE scale. With respect to type of simulation, the medium-fidelity group reported the highest satisfaction. Generally, the students were satisfied with debriefing and reflection. Conclusion: The Korean version of the SSE scale was shown to be a reliable and valid instrument for assessing satisfaction with simulation learning in paramedic students.

• International Journal of Advanced Culture Technology
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• v.7 no.4
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• pp.23-31
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• 2019

This study was a quasi-experimental study with a single group pre-posttest design for evaluating the effects and meanings of a global health training program for nursing students. A mixed data collection method utilizing both qualitative and quantitative methods was applied. The qualitative method consisted of reflection journal entry analysis, while the quantitative study evaluated data collected from a self-reported questionnaire. After attending the program, cultural competencies of participants significantly increased than pre-test while global citizenship was not. Through an analysis of reflection journals written during the overseas training period, the meanings of experiences derived after the program were classified into five themes and 12 sub themes, which were, 'improvement of global health leadership', 'experience of barriers in reality', 'improvement of nursing professional value', 'inspiration of a perspective on health equity', and 'internal growth'. The results indicate that global health training program evaluated in this study was meaningful; it provided students with opportunities to experience the nurse's role in diverse global environments and attempted to measure the effects.