• Journal of Gifted/Talented Education
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• v.22 no.3
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• pp.703-728
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• 2012

The purpose of this study was exploring instructive methods to make each gifted child's ability develop as more by selecting the dynamic method instead of existing static method in teaching and evaluating science-gifted students in elementary school and by analyzing conceptual change of electric circuit. In this research, 11 science-gifted students in primary school were chosen, and Dynamic Science Assessment(DSA) intended to comprehension of scientific electric circuit concept was performed as focusing on scaffolding aspects in order to find the transition process. And then, the features on transition process of students' concept were analyzed in quality. The results of the study were checked that the features of useful scaffolding input with respect to comprehending concepts of science gifted-students by using DSA. The less familiar to approach the subjects, the more presented numbers of scaffolding showed. As coming toward transition and same questions, scaffoldings (interactions) were declined because their level of transition was higher than before. Various ways were used in helping the students comprehend the concept on the method of connecting electric circuit and the emitting amount of current, which acted to adapt to daily life.

• 한국과학교육학회:학술대회논문집
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• 2009.02a
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• pp.66.1-66.1
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• 2009

• Journal of The Korean Association For Science Education
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• v.7 no.1
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• pp.69-79
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• 1987

학교 교실에서의 수업 활동 중 가장 주된 활동은 언어적 의사소통이며 대부분의 지식 전달이 교사의 언어 활동을 통해 이루어 지고 있다. 그리고 교사의 언어적 의사소통의 순서와 구조는 효과적이고 효율적인 학습에 중요한 의미를 가지므로 이를 조직적으로 분석 평가할 필요가 있다. 따라서, 이 연구는 교실에서의 교사 언어 행동의 구조를 분석 연구할 수 있는 방법론적 기초를 마련하고자 Anderson 의 역동적 구조 이론 (Theory of Kinetic Structure) 을 소개하고, 그의 정량적 분석 방법을 한국어에 적용 할 수 있도록 수정하였으며, 교사의 실제 강의 내용을 분석하였다. 분석에 사용한 자료는 50분 동안 진행된 고등학교 1학년 생물 강의를 녹음한 것으로 소화에 관한 내용이었다. 강의 내용에서 역동적 구조의 정량적 분석 결과는 다음과 같다. 강의는 316개의 담화단위 (discourse units) 로 구성되었으며. 261개의 어소 (verbal elements)가 동정되었다. 전체 강의에서 37개의 secondary span 이 동정되었고 이는 6개의 primary span으로 구분되었다. 전체 강의에 대한 평균 기본계수(mean fundamental coefficient, $\bar{B}_1$)는 0.26으로 낮은 수준의 연관도 (commonality )를 보였으며, 평균 가중 기본계수(mean weighted coefficient, $\bar{B}_2$)의 값은 0.88이었다. 전체적으로 이 강의는 중 내지 하 구조 (moderate to low structure)를 갖고 있으며, 높은 진행도 (high progression, $\bar{D}_s$=1.07)를 보였다.

• Journal of Science and Technology Studies
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• v.6 no.1 s.11
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• pp.89-118
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• 2006

The formation of early korean scientific community is a dynamic process of korean modern history in which colonialization, liberation, United States Army Military Government and Korean War is included. Particularly, scientist's crossing over the border into north korea and south korea have profound effect on the early stage of our scientific community. This period is so important to understand the nature of korean scientific community that we need to re-interpret the role of 'ideology' in the development of scientific community. On the other hand, war is a important element in our formation of the image of the science. This study purported to interpret the problem of political ideology, it's role in the formation of early scientific society, it's implication on our idea of science positively. Also the study is a an attempt to re-construct the scientist's struggle(1945-1950) to demarcate new science from old, colonial science.

• Food Science and Industry
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• v.52 no.1
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• pp.52-59
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• 2019

The present article covers a brief introduction on how repeated exposure design can be utilized for developing new food products. A generic consumer taste test which measures consumer acceptance in one trial may have limitation in predicting long-term acceptability of a product. The article describes the changes in food preference and choice during the course of life from infants to elderly. Then, several possible theories that proposes to delineate the underlying mechanisms for acquiring the liking for food is introduced. The article also discusses general experimental design, case studies which adopted repeated exposure design, the limitations and rapid test methods to predict long-term acceptance.

• Journal of Convergence for Information Technology
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• v.12 no.4
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• pp.345-353
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• 2022

The purpose of this study is to identify the types for open innovation of SMEs considering strategic- culture mixed typology and environmental dynamism. The analysis results of 182 SMEs classified into 4 groups are as follows. First, type PD had a positive effect on innovation performance in both in-bound and out-bound innovation and had improved performance through in-bound innovation in a dynamic technical environment. While DH had no significant effect on both innovations. Second, PH and DD, strategy-culture mismatched types, had a single effect of innovation that affected performance. No moderating effects of environmental dynamism had been shown in types PH, DD, DH. SMEs that aim for open innovation should strive to improve performance by aligning change-oriented strategy with creative and challenging culture.

• Korean Journal of Cognitive Science
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• v.23 no.3
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• pp.323-348
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• 2012

Three experiments were conducted to explore the interaction of personal pronoun (e.g. 'I' and 'you') and emotional evaluation (e.g. positive and negative) using time-course (e.g. SOA 500-1000ms) and multi-task approaches (e.g. lexical decision task and primed naming task). In Experiment 1, Participants were presented personal pronoun as primes at SOA 1000ms and were asked to response emotional words which were differed in emotional attributes. The results showed that the interaction effects of personal pronoun and emotional words were found. In Experiment 2, Participants were presented personal pronoun as primes at SOA 1000ms and were asked to response emotional words which were differed in emotional attributes. The results showed that no effects were found. In Experiment 3, Participants were presented personal pronoun as primes at SOA 500ms and were asked to pronounce emotional words which were differed in emotional attributes. The results showed that the interaction of personal pronoun and emotional words were found. The results of 3 experiments were discussed from a point of view of dynamic processes of social cognition.

• Journal of radiological science and technology
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• v.34 no.4
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• pp.323-331
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• 2011

We evaluated clinical usefulness of Arterial spin labeling perfusion MR imaging on the acute ischemic cerebral infarction patients through this study. We compared 22 patients who were done with DSC imaging and ASL imaging in admitted emergency room with acute ischemic cerebral infarction, with 36 normal comparison persons (DSC image on 21persons, ASL images on 15persons). Siemens Magnetom Verio 3.0T with 12 channel head coil was used for this study. DSC image obtained 4 maps(rCBV, rCBF, rMTT, TTP) through post-processing. For qualitative analysis we compared the area of lesion macro-diagonal with the size of diffusion weighted MR image for rMTT, TTP, rCBF, rCBV, ASL maps. For Quantitative analysis we analyzed significant correlations between less than 3 cm infarction group and normal comparison group using mean relative value of flowing image with Mann-Whitney U test. TTP(95.5%) and rCBF(95.5%) maps showed high recognition rate in qualitative analysis for >3cm infarction group. The rCBF and rCBV map tests were highly related with final stage stroke areas. Mean relative value of infarction group showed a significant correlations in quantitative analysis(p<0.05). As a conclusion, arterial spin labeling image showed high lesion recognition rate in the >3cm infarction group. Mean relative values in quantitative evaluation were used for reference data. If we do more sustainable researches, ASL image will be useful for an early diagnosis of cerebral infarction, determination of the range of ischemic pneumbra and effective treatments.

• Science of Emotion and Sensibility
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• v.10 no.2
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• pp.209-220
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• 2007

The purpose of this study is to investigate the words that represent the human sensibility for the water space. The selection of certain words for human sensibility valuation is very important things because of make standard for human sensibility valuation in water bodies. At the first step of the research, 129 words were collected from the subjects by imagination in group of specialist, studies on water space, studies on landscape valuation and studies on human sensibility valuation in out door environmental. At the second step, the suitability test was done and 39 words collected over an average 3.5 point. This words test was 5 point measure to similarity water bodies. At the third step, the factor analysis, cluster analysis, Multi Dimensional Scaling was performed on data, and 9 words were selected from the analysis. Finally, selected comfortable words for human sensibility valuation in water space is hands-on experience, natural, sensibility, harmony, clear, good-feeling, dynamic, free-heart, romantic. The significance of the present study is that it contributes the progress of uncovering the axis of the human sensibility by carefully selecting the words that represent the human sensibility.

• Journal of The Korean Association For Science Education
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• v.38 no.5
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• pp.667-680
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• 2018

The purpose of this study is to investigate 1) the types of knowledge students ask for in their reading comprehension of science textbooks using an online annotation system, 2) the accuracy of the knowledge provided by the students to their peers, 3) the frequency of knowledge sharing behaviors, 4) the evaluation of the effect of collaborative reading, and 5) the trust among peers as knowledge sharers. Questions made by 241 students in the second grade of middle school using an online annotation system in two chapters of the science textbook were analyzed using Bloom's revised taxonomy and their answers were grouped according to five accuracy categories. Also, questionnaires for the evaluation of the effectiveness of collaborative reading comprehension and of trust among the students were used. The students asked their peers 'understanding questions' which comprised almost 80% of the total questions they made and were similar with individual metacognitive strategies for reading comprehension. Of the total threads, 71% has scientifically correct threads shared by the students. The frequency of the knowledge sharing behaviors was high but this was affected by the rewards (point system). Students evaluated that collaborative reading comprehension conducted through an online annotation system were helpful in their learning. In addition, the ratio of students trusting their peers who did the knowledge sharing is over 80%. This study shows that when students use an online annotation system, they can fill one another's cognitive gaps in the reading process by sharing knowledge. Also, collaborative reading using an online annotation system has proved that cognitive individualization is possible through sharing knowledge interactively and dynamically, unlike reading hard copies of textbooks which are a one way information transfer.