• 과학교육연구지
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• 제47권1호
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• pp.63-74
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• 2023

이 연구에서는 고등학교 재학 당시 진로 선택 계열에 따른 예비 초등 교사들의 과학적 자기 효능감과 과학 동기를 비교하고, 과학적 자기 효능감이 과학 동기에 미치는 영향에 대해 알아보고자 하였다. 연구 대상은 A 광역시 소재 교육대학교 2~4학년에 재학 중인 학생들로, 온라인 설문을 실시하여 총 525명의 응답 결과를 활용하였다. 응답한 예비 초등 교사 중 인문사회계열을 선택하였던 학생은 350명, 자연공학계열을 선택한 학생은 175명으로 구성되어 있다. 연구 대상으로부터 수집된 과학적 자기 효능감과 과학 동기에 대한 데이터는 독립표본 t-검증 및 효과 크기 분석, 다중 회귀 분석을 실시하여 분석하였으며, 연구 결과는 다음과 같다. 인문사회계열과 자연공학계열을 선택한 예비 초등 교사들의 경우 두 검사의 모든 하위 요인에서 유의미한 차이가 나타났으며, 자연공학계열을 선택한 학생들의 평균이 유의미하게 높았다. 과학적 자기 효능감이 과학 동기에 미치는 영향에서 설명력은 66.7%, 68.3%가 나타났고, 인문사회계열을 선택하였던 예비 초등 교사들에게서 설명력이 더 높게 나타났다. 그리고 예비 초등 교사들의 과학 동기에 영향을 주는 과학적 자기 효능감의 하위 요인에서 상대적인 중요도는 인문사회계열을 선택하였던 예비 초등 교사들의 경우 과제곤란도선호가, 자연공학계열을 선택하였던 예비 초등 교사들의 경우 자기조절효능감이 가장 크게 나타났다. 따라서 예비 초등 교사들이 과학 관련 교과목에서 높은 성취와 동기를 얻고, 나아가 학교 현장에서 학생들에게 과학을 잘 가르치기 위하여, 과학적 자기 효능감을 향상시킬 수 있는 교육이 필요하다.

• 경영과학
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• 제23권3호
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• pp.1-11
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• 2006

This study investigates empirically on the business analysis of fixed mobile convergence telecommunication service. As for the stage of empirical analysis, the process was carried out in the order elaboration of a test model, selection of sample, empirical analysis and interpretation of result. We report our Preliminary results on the fixed mobile convergence telecommunication service demand pattern forecasting by Bass model. The results show that the fixed mobile convergence telecommunication service may sustain profitability over the next ten years in the market. In conclusion, the practical implication of the result attained by this study is that in order to create a fixed mobile convergence in the korean business world, practical tools such as WiBro service is no less important than fixed service and Mobile service, and that users may be rightfully encouraged to adopt WiBro service.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 춘계학술대회
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• pp.351-364
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• 2009

As well as the development of the measurement of service quality, various kinds of service measurements are also being developed. Especially the mobile telecommunication service being representative to the mobile telecommunication company would be the mostly developed area. Its development can be understood along with the development of the telecommunication companies as well as cellular companies, not only the service alone. It is a differentiated phenomenon in the current research, such as the organic influence between the service quality and product. Of course there are such products placed on sale and enjoyed the common service, but at present there is another case that the product is on the market exclusively with the mobile company in here. This article is to estimate service efficiency for Mobile Communication and Cellular company. In this paper, We tried to measure the service quality and overall satisfaction by using Data Envelopment Analysis(DEA), degree of combination and top2box which is a little bit different methodology from traditional ones. This paper uses CCR model in DEA to measure service efficiency in the Mobile Communication.

• 경영과학
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• 제26권3호
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• pp.67-78
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• 2009

In this paper, I analyze the mobile broadband services market characterized by vertical and horizontal differentiation. Vertical differentiation as service quality differentiation is based on the transmission speed of mobile internet service and horizontal differentiation as spatial differentiation is based on the service coverage. Theoretical explanations for the competitive price policy have been developed in the game context of WiBro which represent the high quality within the limited service coverage and HSDPA which represent relatively low quality with nation-wide service. When the WiBro has a mobile broadband service quality advantage and the difference in quality is sufficiently low, the price of WiBro with limited service coverage is relatively lower than that of HSDPA. This occurs because the advantage of WiBro's vertical service differentiation is offset by the disadvantage of horizontal differentiation. The difference in the quality of mobile internet service, however, is not too high, the price of WiBro is relatively higher than that of HSDPA. Moreover, when the service quality of WiBro is sufficiently high, the low quality HSDPA service faces no demand.

• 한국컴퓨터정보학회논문지
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• 제21권12호
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• pp.97-105
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• 2016

Network-Centric Operational Environment(NCOE) service becomes critical in today's military environment network because reusability of service and interaction are being increasingly important as well in business process. However, the refinement of service by semantic similarity and functional similarity at the business process was not detailed yet. In order to enhance accuracy of refining of business service, in this study, the authors introduce a method for refining service by semantic similarity and functional similarity in BPMN model. The business process are designed in a BPMN model. In this model, candidated services are refined through binding related activities by the analysis result of semantic similarity based on word-net and functional similarity based on properties specification between activities. Then, the services are identified through refining the candidated service. The proposed method is expected to enhance the service identification with accuracy and modularity. It also can accelerate more standardized service refinement developments by the proposed method.

• 대한안전경영과학회지
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• 제5권4호
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• pp.219-228
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• 2003

Today, the size of a parcel delivery service market, which is a part of logistics, at home and abroad has been extended rapidly and its growth rate is expected to increase hereafter. At this point, when service is applied strategically in a parcel delivery service, we need to understand the feature of logistics service quality by view of customer differentiation. In this study, we try to constitute a model of the feature of logistics service, which is combined five features of service quality (Responsiveness, Empathy, Reliability, Accuracy and Tangibility) based on measuring model of SERVQUAL with logistics service, and to know the feature of logistics service from parcel delivery service by jobs with statistical tool.

• 한국초등과학교육학회지:초등과학교육
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• 제29권4호
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• pp.465-473
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• 2010

The purpose of this study was to explore the impact of scientific inquiry-based peer teaching experience on pre-service elementary teachers' science teaching efficacy, anxiety to science and attitude toward science. The participants of this study included 118 pre-service teachers. The pre-post paired t-test design was implemented to examine the effect of this program. In addition, the semi-structured interviews were carried out for investigating their changes of affective characteristics. The result of this study showed that inquiry-based peer teaching provided pre-service teachers with the opportunities to enhance their science teaching efficacy and attitude toward science and reduce their anxiety to science. The findings imply that it is possible to meaningfully change elementary teachers' affective characteristics when effective strategies are adequately adopted.

• 한국초등과학교육학회지:초등과학교육
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• 제30권3호
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• pp.367-378
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• 2011

After pre-service teachers become teachers, traditional patterns of classroom discourse which they had experienced as students affect their classroom discourse implicitly. For this reason, it is needed to get a new insight for evaluating and reflecting a teacher's classroom discourse. In this study, I analyzed the information flow of science classes of pre-service elementary school teachers. The finding showed that teachers' organizational skills for students' information made advanced science classes by maintaining discourse cohesions. And the findings also showed a way how to analyze, evaluate or reflect science classroom discourse. This trial could contribute to find out the characteristics of teachers' science classroom discourse and show the directions to them how to change their classes beyond impressionable evaluations for their science classes.

• 한국과학교육학회지
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• 제37권2호
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• pp.263-271
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• 2017

최근 개정된 2015 개정 교육과정의 주요 신설과목인 '통합과학'이 학교 현장에서 정착되기 위해서는 현직교사에 대한 재교육이 필요하다. 본 연구에서는 개정 교육과정의 '통합과학' 교과목 신설에 대비하여 중등 과학교사의 자격종별로 현직교사 재교육 내용을 구상하고, 과학과 현직교사 역량 제고 방안을 마련하고자 하였다. 이를 위해 문헌 연구와 과학교육 전문가 22명을 대상으로 한 델파이 조사를 통해 2015 개정 통합과학 교육과정의 특징을 성격과 목표, 내용 체계 및 내용 구성 등의 측면에서 분석하고 이를 가르치기 위해 필요한 교사 역량이 무엇인지를 탐색하였다. 이렇게 분석된 내용을 바탕으로 현재 학교 현장의 중등학교 과학교사 자격증 유형별 특징과 통합과학 지도를 위해 추가되어야 할 교사 역량을 탐색하여, 교사 자격증 유형별로 2015 개정 통합과학의 이해 직무 연수(A형), 통합과학 직무연수(B형), 통합과학 부전공 자격연수(C형) 등 3가지 유형의 연수프로그램을 개발하였다. 각각의 연수 프로그램 유형별로 교사 자격증별 대상자, 운영시간, 연수프로그램의 구체적인 구성 방법 등을 제시하였다. 또한, 이 연구에서는 전문가 의견에 기초하여 현직 교사뿐만 아니라 통합과학 교사 양성과정 개선안과 통합과학 교사자격 취득을 위한 기본이수과목 개선안을 제안하고 그 타당성을 평가하였다. 이러한 연구결과를 바탕으로 통합과학 지도를 위한 현직교사 재교육 연수 프로그램 구성상의 유의점 및 통합과학 교사 양성과정 개선 방안을 제언하였다.

• 대한지구과학교육학회지
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• 제1권1호
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• pp.111-118
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• 2008

This study is aimed at analyzing earth conception the nine pre service teachers who are majoring in earth science education and classifying a special feature from the ontological categories. Open ended questionnaires and semi structured interviews which meant to contribute to identifying ontological categories of concepts involving study area were designed. Pre service teachers' ontological category about earth conception most showed to dynamic and proto process. In the results show that many pre service teachers recognize simply the conception to a material, a condition and a conversion of the state changing. Most of the pre service teachers show their intermediate understanding level about the earth inner construction according to the analyzed results of the drawing tasks and interviews. The main alternative conceptions show them through a definition of the plate, a wording definition between lithosphere and asthenosphere, a feature of the plate boundary, a heat convection in the earth inner, the earth inner heat source, the earth inner structure, a physical feature of the mantle.