• 한국과학교육학회지
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• 제17권4호
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• pp.525-540
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• 1997

The present study tested the hypothesis that maturation of the prefrontal lobes is a crucial factor determining the performance of scientific reasoning tasks, Functions of the prefrontal lobes, such as activating relevant information, sequential planning and monitoring, and inhibiting irrelevant information, are related thinking patterns with scientific reasoning. Therefore, we inferred the idea that the prefrontal lobes play an important role in scientific reasoning. To test the hypothesis. the present study investigated a prefrontal lobe patient's task solving procedures in scientific reasoning tasks and the correlation and regression analysis between a test of prefrontal lobe function and two scientific reasoning tasks, The perseverative errors in the Wisconsin Card Sorting Test(WCST) was used as a measure of the prefrontal lobe function, The Melinark Type Task and the Classroom Test of Scientific Reasoning were used as measures of scientific reasoning abilities. Ages and Group Embedded Figure Test were also used as measures of two alternative hypotheses, general maturation and field independency respectively. The prefrontal lobe patient showed a crucial deficiency in solving scientific reasoning tasks. In the tasks, the patient could not used the reasoning of If... and... then... therefore pattern. In correlation study, the perseveration errors of the WCST showed a significantly negative correlation with two scientific reasoning tasks. Multiple regression study also showed that the perseveration errors measured as a function of the prefrontal lobes have more contribution to scientific reasoning ability than contributions of alternative hypotheses. Therefore, the present study supported the hypothesis that prefrontal lobes play a crucial role in scientific reasoning ability, What function of the prefrontal lobes do play crucial role in scientific reasoning? The present study provided an explanation for the question, which inhibiting ability of the prefrontal lobes is responsible for the scientific reasoning ability, in a part at least. That is, perseverative tendency in task-solving procedures causes a deficiency of an ability to inhibit the wrong information to solve a task. The present study provided a possibility of neuropsychological approach in science education research. The present study also showed an importance of the prefrontal lobe development in the performance of scientific reasoning task.

• BMB Reports
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• 제50권12호
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• pp.610-614
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• 2017

Scientists planning research that involves the use of animals are required to examine the possibilities for replacement, reduction, or refinement (the Three Rs), and their protocol must be reviewed by the Institutional Animal Care and Use Committee. Good scientific practice involving appropriate search techniques on the available Three Rs resources is essential for both ethical and scientific reasons. Appropriate experimental design and statistical analysis techniques are particularly necessary for research involving the use of animals, because this can improve animal welfare and scientific outcomes, as well as saving animal lives. There are a number of resources to help researchers improve their search techniques, experimental design strategies, and their reporting of research involving the use of animals. However, there is little specific information or resources on the Three Rs alternatives that is readily available in the Korean language. This paper outlines the common errors made by submitting researchers that have been repeatedly observed during the ethical review of experimental protocols over the last ten years, and provides information on the Korean resources available to promote good scientific practice. This could help to bridge the gap between Korean scientists and animal welfare advocates assisting scientists to improve ethical considerations and conduct responsible research.

• Ocean and Polar Research
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• 제31권1호
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• pp.133-156
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• 2009

We have named the sea surrounded by the Korean Peninsula, Primorye of Russia, and Japanese Islands as the East Sea. Historically this region has been variously named the East Sea, Chosun Sea, and, more recently, Japan Sea and Sea of Japan. Since the scientific research papers can play important roles on the naming the sea, the status of naming the East Sea in international scientific journals was investigated. Among 472 papers in 46 international journals that we assessed, Japan Sea (or Sea of Japan) was used in 322 papers (68.2%), East Sea was used in 21 papers (4.4%), and parallel usage of East Sea and Japan Sea accounted for 27.3% (129 papers). In all scientific papers before the early 1980s, East Sea was not used. Since the first parallel usage of East Sea and Japan Sea in 1985, these designations has been increasingly used. After 2004, the parallel usage has replaced the single designation of Japan Sea.

• Composites Research
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• 제31권6호
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• pp.311-316
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• 2018

In the present study, the effect of GO in damping capacity of CF/epoxy laminates was studied via free vibration analysis. The composite laminates were manufactured by using vacuum assisted resin transfer molding technique. The damping properties of the prepared hybrid composites were determined in terms of natural frequency and damping ratio in free vibration test. The foremost aspire of this investigation was to compare the vibration properties i.e. natural frequency and modal damping of the prepared composites with the numerical results. The numerical study was carried out via FEA using $ANSYS^{TM}$ workbench software. The parametric study of the numerical models was also studied considering the beam free length and the beam thickness. It was found that the incorporation of GO enhanced the damping capacity of the composite and the variation of natural frequencies in mode1varied by 2-5% compared to the experimental study.

• 한국관광식음료학회지:관광식음료경영연구
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• 제7권
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• pp.315-329
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• 1997

This study reviews the scientific management theories and discusses those theories within the food service industry. By providing the principles and the practical implications of this theories on the food service industry, this study tries to identify their philosophies and usefulness to the industry so that the managers in the industry use them in their dynamic operations.

• 영재교육연구
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• 제21권2호
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• pp.337-356
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• 2011

본 연구는 IIM을 적용한 천문학습 프로그램 개발 적용이 초등과학영재학생의 과학탐구능력 및 과학적 태도에 미치는 효과를 알아보기 위해 수행되었다. IIM이란 독자적 탐구방법으로 학생들 스스로 탐구하고 연구하는 수업형태로 7단계의 학습단계를 가지고 있다. 본 연구의 실행을 위해서 초등학교 과학교과 5학년 천문영역의 내용을 바탕으로 IIM의 탐구단계를 적용하여 총 7차시(6주간)로 천문학습 프로그램을 구성하였으며, 주제 선정하기(1차시), 목표 설정하기(2차시), 자료 조사하기(3차시), 탐구 활동하기(4차시), 목표 평가하기(5차시), 보고서 작성하기(6차시), 발표하기(7차시) 등으로 구성하여 적용하였다. 본 연구의 효과를 검증하기 위해 연구반은 울산광역시 소재 G 초등학교 과학영재반(초등 3학년) 20명을 선정하였다. 검사도구는 과학탐구능력 검사와 과학적 태도 검사지를 사용하였고, 통계해석 프로그램은 SPSS WIN 18.0을 사용하여 결과를 분석하였다. 연구의 결과는 IIM을 적용한 천문학습 프로그램은 초등과학영재학생의 과학탐구능력(F=4.920, p=.021)에 긍정적인 효과가 있었고, 초등과학영재학생의 과학적 태도(F=11.224, p=.001)에도 긍정적인 효과가 있었다. 본 연구를 통해 IIM을 적용한 천문학습 프로그램은 초등과학영재학생들의 과학탐구능력 신장과 과학적 태도 함양에 도움이 된다는 것을 알 수 있으며 나아가 과학영재원이나 과학영재학급 교육과정에 기여할 수 있을 것이다.

• 대한지구과학교육학회지
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• 제6권1호
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• pp.20-27
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• 2013

This research examined the elementary students' level of motivation to learn science and analyzed correlation between scientific experiences and the motivations to learn science. 216 of elementary students in the 5th grade and 207 of elementary students in the 6th grade were surveyed with questionnaire composed of Likert criteria and scientific motivation questionnaire(SMQ), and the results were analyzed by SPSS 18.0 statistics program. The results of this research are as following : First, elementary school students' level of scientific experiences appeared quite low, and boys appeared to have more scientific experiences than girls. For more specific areas, the experiences were more from outside of school rather than inside, and experiences from science class. Second, elementary students' level of motivation to learn science stood relatively high, and boys showed higher level of motivation to learn science than girls. For more specific areas, the level of motivation from internal motivation area was the highest and the lowest was that from the area of anxiety about exams. Third, the scientific experiences and motivation to learn science showed highly static correlation. Experiences both from inside and outside of the school were significantly correlated to the motivation to learn science, and those from outside of the school had higher correlation with the motivation to learn science. Therefore, the scientific experiences should be recognized to play an important role for improvement of the level of motivation to learn science, and the efforts should be made to provide the elementary students with high-quality scientific experiences to develop their level of motivation to learn science.

• 한국과학교육학회지
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• 제28권8호
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• pp.937-954
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• 2008

'과학적 사고의 신장'은 과학교육의 중요한 목표 중의 하나임에도 불구하고, 과학교사가 과학적 사고를 어떻게 개념화하는지에 대한 경험적 연구가 부족하다. 이에, 본 연구에서는 4명의 예비 중등 과학교사가 과학적 사고를 어떻게 정의하고, 토론에서 동료 상호작용을 통해 개인적 개념을 어떻게 정교해 가는지를 탐색하였다. 연구 결과로서 첫째, 과학적 사고에 대한 개인적 개념 스펙트럼을 제시하고 둘째, 소집단 및 전체 토론을 통해 가장 논쟁이 활발했던 세 가지 논제에 대하여 개념의 구성과 정교화 과정을 조명하였다. 과학적 사고와 관련된 세 가지 논제는 일상적 대 과학적 사고, 과학지식과 과학적 사고의 관계, 논리적 체계와 증거의 관계를 다룬다. 본 연구 결과를 토대로 예비 과학 교사교육에 대한 논의와 향후 연구에 대한 제언을 하였다.

• 한국과학교육학회지
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• 제24권2호
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• pp.375-386
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• 2004

과학적 창의성은 창의적 사고만으로 발현될 수 없으며, 과학지식내용과 과학적 탐구기능이 함께 사용되게 마련이다. 따라서, 본 연구에서는 과학적 창의성을 위한 사고, 과학지식내용, 과학적 탐구기능의 3 요소로 구성된 인지적 측면에서의 과학적 창의성 모델을 제안하였다. 그리고 모델의 공통요소로 가치, 독창성, 정교성을 포함시켰다. 최근에는 발산적 사고가 곧 창의적 사고라고 보기보다는, 과학적 창의성에 여러 가지 다양한 사고가 필요하다고 강조해왔다. 본 연구에서는 이러한 논의들에 기초하여, 과학적 창의성을 위한 사고로 발산적 사고, 수렴적 사고, 그리고 연관적 사고를 제안하였다. 인지적 측면의 과학적 창의성 모델에 기초하여 구체적인 과학적 창의성 활동 예시를 제시하고, 어떻게 활동자료가 개발될 수 있는지에 대한 제언을 하였다. 앞으로 연구에서는 구체적으로 다양한 과학적 창의성 활동유형을 정의하고, 유형별 학습지도자료를 개발하게 될 것이다.

• 과학교육연구지
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• 제38권2호
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• pp.286-301
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• 2014

이 연구의 목적은 초등학생의 논의활동과 과학글쓰기와의 상호 관련성을 정성적으로 알아보는데 있다. 이와 같은 과제를 해결하기 위하여 과학적 상황 및 사회과학적 상황으로 구성된 9가지 논의 및 과학글쓰기 주제를 가지고 초등학교 5학년 학생을 대상으로 논의 및 과학글쓰기 활동을 행하였다. 논의과정에서 나눈 대화내용과 논의활동 전 후에 작성한 과학글쓰기의 내용을 녹음하고 전사하여 과학 글쓰기 세 가지 목표영역에 준거한 분석틀에 따라 비교 분석하였다. 이번 연구를 통하여 얻어진 결과는 다음과 같다. 첫째, 논의활동 중의 다양한 의견들은 논의 후 과학글쓰기에서 과학글쓰기 3가지 목표영역인 과학성, 논리성, 창의성이 신장되는데 긍정적인 효과를 주었다. 둘째, 논의활동이 논의 후 과학글쓰기에 나타나는 표현 형태는 크게 세 가지로 범주화할 수 있었다. 유형 1) 논의과정에서 새롭게 드러난 자신의 과학개념, 주장, 아이디어를 보충하여 표현하는 경우, 유형 2) 논의과정에서 다른 사람의 과학개념, 주장, 근거, 아이디어를 자기화하여 나타내는 경우, 유형 3) 논의활동에 기초하여 새로운 사실을 추론하거나 새로운 아이디어를 표현하는 경우이다.