• 한국초등과학교육학회지:초등과학교육
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• 제30권3호
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• pp.340-352
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• 2011

The purpose of this study was to analyze effects of teaching materials for elementary science gifted conception about object recognition. Elementary science gifted have misconceptions that they can see in lightness. They can not explain how a shadow is made. This paper reports in-depth investigation on elementary science gifted's understanding of object recognition focusing on process of light. A program is developed to elementary science gifted in the subject matter. The tutorial emphasizing the process of light consists of pre-test, worksheet, and post-test. The Tutorial has 4 steps; darkness and light, light on things, light reached eyes, structure of the eyes. Each steps has 2~4 experiments. Through the tutorial, we expect their misconceptions can be changed into scientific conceptions. For the research and analysis, a questionnaire is posed to 39 elementary science gifted at M Elementary School in D Metropolitan City. The first method of product analysis makes a comparative study of pre-test, post-test score, and hake gain each test. As a result, total score of all student was raised. And hake gain of pre-test(II) is 0.6, hake gain of post-test is 0.68. It is Medium gain. Also, elementary science gifted could understand how we see through the tutorial emphasizing process of light. And their misconceptions can be changed into scientific conceptions.

• 대한치과교정학회지
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• 제53권1호
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• pp.26-34
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• 2023

Objective: The purpose of the present study was to compare the root positions in virtual tooth setups using only crowns in a simulated treatment with those achieved in the actual treatment. Methods: Pre- and post-treatment intraoral and corresponding cone beam computed tomography (CBCT) scans were obtained from 15 patients who underwent orthodontic treatment with premolar extraction. A conventional virtual tooth setup was used for the treatment simulation. Pre- and post-treatment three-dimensional digital tooth models were fabricated by integrating the patients' intraoral and CBCT scans. The simulated root positions in the virtual setup were obtained by merging the crown in the virtual setup and root in the pre-treatment tooth model. The root positions of the simulated and actual post-treatment tooth models were compared. Results: Differences in root positions between the simulated and actual models were > 1 mm in all teeth, and statistically significant differences were observed (p < 0.05), except for the maxillary lateral incisors. The differences in the inter-root angulation were > 1° in all teeth, and statistically significant differences were observed in the maxillary and mandibular canines. Conclusions: The virtual tooth setup using only crown data showed errors over the clinical limits. The clinical application of a virtual setup using crowns and roots is necessary for accurate and precise treatment simulation, particularly in extraction treatment.

• Journal of Sport and Applied Science
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• 제7권3호
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• pp.19-26
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• 2023

Purpose: This study attempted to investigate the effect of functional rehabilitation exercise for posture correction on physical strength factors and physical balance. Research design, data, and methodology: It consisted of 40 experimental groups that applied functional rehabilitation exercises to 80 people with posture imbalance and 40 comparative groups that performed general exercises, and was conducted four times a week, once for 40 minutes, and for 12 weeks. Results: D.S. (p<.o1) among F.M.S., a moving assessment. It increased significantly from the dictionary, and H.S. (p<.o5). I.L(p<.o5). S.M(p<.o5). A.S.L.R(p<.o5). T.S.P(p<.o01). It was confirmed that R.S. (p<.o5) decreased more after than before. In other words, Functional rehabilitation exercise was effective in improving physical balance. PAPS flexibility (bending forward) (p<.o1). Muscle strength (grip strength test) (p<.o1). Quickness (long jump) (p<.o1). Functional rehabilitation exercise was found to be effective in muscle strength, agility, and flexibility, but not in cardiopulmonary endurance. Pain: Based on the NRS scale (1-10 points). The experimental that there was a significant interaction between the groups.(F=38.583, P=.000). In the comparative group, there was no significant difference in the pre-post, and it was found that the pain level in the experimental group decreased after the pre-post (p<.001). Conclusion: As a result of the above study, it was confirmed that functional rehabilitation exercise improves physical strength factors and physical balance ability, and also affects physical pain reduction due to physical imbalance.

• 문화기술의 융합
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• 제9권6호
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• pp.935-940
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• 2023

인공지능과 빅데이터 분석을 위해 웹 스크래핑으로 수집된 대부분의 텍스트 데이터들은 일반적으로 대용량이고 비정형이기 때문에 빅데이터 분석을 위해서는 정제과정이 요구된다. 그 과정은 휴리스틱 전처리 정제단계와 후처리 머시인 정제단계를 통해서 분석이 가능한 정형 데이터가 된다. 따라서 본 연구에서는 후처리 머시인 정제과정에서 한국어 딕셔너리와 불용어 딕셔너리를 이용하여 워드크라우드 분석을 위한 빈도분석을 위해 어휘들을 추출하게 되는데 이 과정에서 제거되지 않은 불용어를 효율적으로 제거하기 위한 "사용자 정의 불용어 시소러스" 적용에 대한 방법론을 제안하고 R의 워드클라우드 기법으로 기존의 "불용어 딕셔너리" 방법의 문제점을 보완하기 위해 제안된 "사용자 정의 불용어 시소러스" 기법을 이용한 사례분석을 통해서 제안된 정제방법의 장단점을 비교 검증하여 제시하고 제안된 방법론의 실무적용에 대한 효용성을 제안한다.

• BMB Reports
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• 제44권5호
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• pp.306-311
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• 2011

Although NCX-3 is highly expressed in the brain, the distribution of NCX-3 in the epileptic hippocampus is still controversial. Therefore, to assess the distribution and pattern of NCX-3 expression in epileptic hippocampus, we performed a comparative analysis of NCX-3 immunoreactivities in the hippocampus of seizure-resistant (SR) and seizure-sensitive (SS) gerbils. In SR gerbils, NCX-3 immunoreactivity was higher than pre-seizure SS gerbils, particularly in the pavalbumin (PV)-positive interneurons. Three h post-ictal, NCX-3 immunoreactivity in the SS gerbil hippocampus was markedly elevated to the level of SR gerbils. Six h post-ictal, the expression of NCX-3 was reduced to the level of pre-seizure SS gerbils. Therefore, the results of the present study suggest that down-regulation of NCX-3 expression in the SS gerbil hippo-campus may be involved in the hyperexcitability of SS gerbils due to an imbalance of intracellular $Na^+/Ca^{2+}$ homeostasis and $Ca^{2+}$ concentration.

• 수산해양교육연구
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• 제29권3호
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• pp.799-810
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• 2017

In this study, to raise the scientific literacy for students, the teaching and learning program was developed by applying the Circle Map. The purpose of this study was to find out the Effect of Elementary Science Teaching Program with Circle Map on Learning Motive and Learning Achievement. To this end, the 6th grade classroom of A-elementary school located in Jeju-city was selected the experimental group (25 patients). And the other 6th grade classroom in the same school was selected to the comparative group (25 patients). The experimental group was conducted applying the Circle Map. Comparison group has been conducted lesson program in accordance with the general science class teacher guide. Was through a pre-test of science learning motivation and academic achievement level can be assumed in the same group. After completing the experimental treatment by conducting a post-mortem examination was statistically validated. In this study, the following conclusions were obtained. First, elementary science class which applied Circle Map had the effect of to improve the scientific motivation(p <.05). In particular, association in the experimental group were higher than the scores of the comparative group, the difference was significant. Second, the Circle Map applied to elementary science class had a significant effect on improving science achievement. The experimental group which applied Circle Map was higher than the comparative group in science achievement post-test comparison. Between the groups showed a significant difference between the two groups(p <.05). The above findings, Elementary science class which applied Circle Map can be concluded to be effective in science and science achievement motivation. Therefore, applying the Circle Map of elementary science class could be useful in science teaching and learning methods. In addition, when it is determined through the previous study, applying the Circle Map classes will be able to derive a meaningful learning also subjected to a number of fields and areas.

• 한국과학교육학회지
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• 제21권5호
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• pp.855-866
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• 2001

An important issue for qualified science teacher education should be a proper system of pre-service education for the science teacher. There are various types of science teacher education systems in accordance with their socio-cultural backgrounds. In this paper, science teacher education systems were analysed into 3 different types: Focusing Undergraduate Certification of Education (FUCE), Open Undergraduate Certification of Education (OUCE), and Post Graduate Certification of Education (PGCE). Science teacher education systems and their outcomes, such as the quality of the science teacher, were discussed with their socio-cultural backgrounds, compared by the 3 types of science teacher education systems. For this the results of meta-analysis from TIMSS-R and OECD data sets were used. Special interests focused on countries; Japan, Korea, the United Kingdom and the United States, which would represent stereotypes of science teacher education systems and different backgrounds of oriental and western culture.

• 한국방사선학회논문지
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• 제12권2호
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• pp.225-231
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• 2018

최근 학령인구의 감소와 대중매체의 발달로 교수자와 학생이 소통할 수 있는 새로운 교수법이 대두되고 있으며, 전문대학생들에 맞추어 플립드 러닝 교수학습모형을 적용하였다. 맞춤식 플립드 러닝 교수학습 모형 결과에서 전공과목 pre class 출석률은 92.3%의 결과로 나타났다. 그리고 전공이외의 교양 교과목의 pre class의 출석률은 87.6%로의 결과를 보여 주었다. 이러한 결과는 방사선과 1학년 재학생들의 전공과목 pre class출석률이 교양 교과목 pre class출석률보다 적극적인 참여가 있었다는 것을 알 수 있다. 맞춤식 플립드러닝 교수학습모형의 in class에서 적용한 연구 집단과 적용하지 않은 비교집단 간의 차이를 비교해 본 결과, 연구 집단이 비교집단보다 직무능력인 지식, 기술, 태도에서 모두 높은 점수를 보였다. 또한, 예비방사선사로서 갖추어야 할 직업기초능력으로 본 수업 모형을 적용한 결과 90%이상의 학습자들이 책임감, 문제해결 능력, 창의적 사고, 협동 능력, 의사소통 능력이 향상되었다. 맞춤식 플립드 러닝 교수 학습모형의 post class에서 방사선사 역할인지 차이 검증에서는 교수학습모형적용전의 평균이 2.10이였으나 적용 후의 평균은 4.40로 증가하여 나타났다. 맞춤식 플립드 교수 학습 모형을 적용한 결과 방사선과 직업기초능력을 함양하기위하여 본 교수학습모형이 적절하며, 이에 확대 적용할 필요성이 있다고 사료된다.

• 실천공학교육논문지
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• 제16권4호
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• pp.529-540
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• 2024

산업현장에서 체험형 가상훈련 콘텐츠는 고위험, 고비용의 훈련을 대체하기 위해 일부 활용되기도 하고, 비대면 산업의 수요 증가와 함께 가상훈련 콘텐츠 개발도 활발해지고 있다. 기존 연구들은 주로 설문조사를 통한 양적 연구에 집중하여 이용자의 학습 몰입 변화를 측정하는 데 그쳤다. 본 연구는 이원적 직업훈련 환경에서 이론 교육과 가상훈련의 결합이 실제 직무 수행능력 향상에 미치는 영향을 실험연구를 수행하여 규명하고자 하였다. 본 연구는 기업과 학교를 오가며 참여하게 되는 이원적 직업훈련(일과 학습을 병행)에서 이론교육과 가상훈련의 결합이 직업훈련의 성과를 높일 수 있는지에 대해 연구하였다. 직업훈련 교육생 기계과 24명을 대상으로 전통적인 직업훈련과 가상훈련 콘텐츠를 활용한 직업훈련에 대한 사전사후 평가결과를 비교하였다. 연구결과, 전통적인 직업훈련에 비해 가상훈련 방식의 교육의 성과가 더 높으며, 이론적인 교육에 가상현실 기반 교육의 결합이 더 효과적임을 실증하였다. 본 연구에서는 가상훈련 콘텐츠가 산업 안전 교육의 새로운 패러다임을 제시하고 있음을 시사하며, 훈련생들의 인터뷰 결과를 통해 가상훈련이 단순히 지식 전달을 넘어, 안전에 대한 태도 변화를 이끌어낼 수 있음을 확인하였다. 이는 산업 현장의 안전 사고 예방에 기여하고, 직업 훈련의 질적 향상을 위한 중요한 시사점을 제공한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.143-146
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• 2015

메타분석은 여러 실증연구의 정량적인 결과를 통합과 분석을 통해 전체 결과를 조망할 수 있는 기회를 제공하는 통계적 통합 방법이다. 우리나라 학술지에 게재된 대사증후군과 비만 위험요인에 관한 연구들을 계량적으로 통합하고 검토해보기 위해 진행하였다. 본 연구는 대사증후군과 비만에 대한 문헌적 고찰을 통해 선행연구를 살펴보고 열거된 요인에 관한 실증 분석된 연구들을 메타분석하기 위해 2000년-2015년 국내 학술지에 게재된 논문을 연구대상으로 하였다. 국내 학술지에 게재된 논문만 여과하여 조건에 부합한 총 36편의 논문을 연구에 대상으로 선정하였다. 메타분석 결과 허리둘레(복부비만) 사전사후 경로에서 가장 큰 효과크기(r = .420)인 것으로 나타났다. 두 번째 큰 효과 크기는 고밀도지단백콜레스테롤 사전사후 경로(r = -.402)인 것으로 나타났다. 그런데, 이완기혈압 사전사후 경로가 가장 작은 효과크기(r = .234)인 값을 확인할 수 있었다. 따라서 이러한 연구결과를 바탕으로 학문적 실무적 의의를 논의하고자 한다.