• Journal of Science Education
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• v.47 no.2
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• pp.139-153
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• 2023

This study aimed to investigate the effect of environmental education programs using action learning on elementary school students' environmental literacy and self-efficacy. To this end, an environmental education program using action learning was applied to 22 sixth graders of 'A' Elementary School in Busan. The results of this study were as follows. First, environmental education programs using action learning were effective in improving the environmental literacy of elementary school students. After implementing the environmental education program using action learning, students' environmental values, cognitive, and procedural ability changed positively. Environmental issues awareness and ecological knowledge improved, and there was a significant increase in environmental behavior and environmental function. Second, environmental education programs using action learning were effective in enhancing the self-efficacy of elementary school students. After implementing environmental education programs using action learning, students' confidence in problem solving and their ability to judge their behaviors improved. Third, elementary school students showed active participation and interest when conducting environmental education programs using action learning. Students have become open to protecting the environment when they find problems, devise solutions, and practice them. After reflection, it was confirmed that students' immersion and satisfaction in class were high as a solution was reached, leading to efforts to sell items they did not use and donate profits to environmental protection organizations.

• Journal of the Korean Society of Radiology
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• v.17 no.7
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• pp.1109-1114
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• 2023

This study investigated the effects of utilizing 3D printed teaching aids on academic achievement and learning motivation in a non-face-to-face learning environment during the COVID-19 pandemic. The study was divided into an experimental and a comparison group that applied traditional lecture-based teaching and self-directed learning using 3D printed teaching aids and videos. The results of the study showed that the experimental group using 3D printed brain puzzles improved their academic performance compared to the comparison group using traditional lectures. This may be due to the fact that visual and experiential learning helped students to acquire knowledge on their own. The brain puzzles provided an interesting learning experience for the students, and their overall satisfaction with the class was also positive. These results indicate that teaching with teaching aids can increase students' motivation to learn and improve their academic performance. Therefore, the active introduction of 3D printed teaching aids in the non-face-to-face learning environment caused by COVID-19 is expected to improve the quality of education through innovation in learner-centered teaching methods.

• Journal of The Korean Association For Science Education
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• v.26 no.3
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• pp.393-405
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• 2006

The purpose of this study was to analyze the effects of Semantic Network Program (SNP) instruction on learning achievement and motivation in high school biology classes. For this study, a SNP was designed by applying the recommendations in regard to student attention and satisfaction factors in Keller's ARCS theory. SNP instruction was conducted with an experimental group and a control group, each consisting of 62 high school biology class student. A pretest-posttest control group design was employed. The pre-test was used to analyze the learning achievement test, learning motivation test, and semantic forming test. For 4 weeks the experiment group was instructed using the developed SNP which centered on Keller's attention and satisfaction factors, and the control group was instructed via teacher-centered lectures based on the textbook. It was found that SNP instruction efficiently increased students' biology learning achievement (p<.001). It was also discovered that SNP instruction was effective in increasing Keller's motivation strategies on attention and satisfaction factors (p<.001). In addition, SNP instruction positively affected students' semantic formation (p<.001) and learning content retention (p>.05) in the heredity unit by aiding students in the area of active multimedia learning. An in depth interview with students in the class using SNP instruction showed that material learned via this method in biology had longer retention of problem-solving methods. Consequently, SNP instruction according to motivation strategies may high school biology teachers with meaningful teaching-learning methods strategies for the unit on heredity.

• The Journal of Sustainable Design and Educational Environment Research
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• v.16 no.3
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• pp.51-60
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• 2017

School safety in Japan in the 21st century has been directly influenced by changes in school education policy. The purpose of Japanese school education is to nurture self-reliance, cooperation, and creative humanity by promoting 'zest for life'. Reflecting this, the purpose of school safety is to strengthen survival capabilities that students can overcome in any disaster situation. The main features of Japanese school safety are as follows: 1) to emphasize ability to survive; 2) to focus on school safety role in home and community; 3) to balance between school safety and school education; 4) to emphasize school safety education through experiential and active learning; 5) to pursue safer school facilities; 6) to focus on continuous improvement through PDCA(Plan-Do-Check-Act); 7) to spread the UN safe school model. This analysis and discussion on Japanese school safety will give meaningful implications to Korea's school safety which has recently undergone dramatic changes.

• Journal of Technologic Dentistry
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• v.29 no.2
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• pp.87-103
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• 2007

The purpose of this study is to widen the subject of research to the whole social activity, which is divided into the following four categories in the previous study on "Reality of social activity of senior citizen": 1. work 2. social participation and volunteer activity 3. learning activity 4. individual activity, and to clarify which category is most related to the masticatory ability. There were 57korean subjects in the survey: aged 65 through 85 (73.8$\pm$5.5), 81 women: aged 65 through 85 (74.3$\pm$5.3), a total of 138: aged 65 through 85 (74.1$\pm$5.4), in College for senior citizen of A city, Buddhist College for senior citizen of A city and senior citizen's welfare facility of A city who gave consent to the research The Japanese subject were 38 men: aged 65 through 85(75.3$\pm$5.4), 54 women: aged 65 through 85(75.5$\pm$5.2), a total of 92: aged 65 through 85(75.4$\pm$5.2) in women's division of F city Federation of Senior Citizens' Club, Otsuka division of B ward Federation of Senior Citizens' Club and S ward Federation of Senior Citizens' Club who gave consent to the research. The major findings were as follows: A social activity, individual activity were active in a social activity domain on a day so that people of Japanese advanced age had you, and writing ability was high, and, as for freezing, learning activity was active for people of Korean advanced age in a social activity domain so that writing ability was high.

• Journal of the Korean Institute of Landscape Architecture
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• v.40 no.6
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• pp.98-111
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• 2012

This study found the possibility of using cemeteries within the locality as field trip destination. A comparison between Korea and the United States of America's active progress has derived the difference and the implications. Therefore, this article found that the cemetery has sufficient resources based on experience-learning place within the community. Therefore, when the active educational program was developed; it gained more abundant resources for education, as well as provided more different educational opportunities for the students than now. As the result of comparison, the reason why the educational program is actively progressing in the American cemeteries is that a beautiful and fresh environment has been built up such as a park or garden in a cemetery and has been preserved as a healthy forest ecosystem. Furthermore, it is because they actively used the cemetery within a community as the subject. If our cemetery can be renovated and the funeral culture can be changed to break down the image of an avoidable unpleasant facility, it would play a role as a field for learning experience.

• Journal of KIISE
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• v.42 no.11
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• pp.1397-1403
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• 2015

A named entity(NE) dictionary is an important resource for the performance of NE recognition. However, it is not easy to construct a NE dictionary manually since human annotation is time consuming and labor-intensive. To save construction time and reduce human labor, we propose a semi-automatic system for the construction of a NE dictionary. The proposed system constructs a pseudo-document with Wiki-categories per NE class by using an active learning technique. Then, it calculates similarities between Wiki entries and pseudo-documents using the BM25 model, a well-known information retrieval model. Finally, it classifies each Wiki entry into NE classes based on similarities. In experiments with three different types of NE class sets, the proposed system showed high performance(macro-average F1-score of 0.9028 and micro-average F1-score 0.9554).

• Journal of Ginseng Research
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• v.40 no.3
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• pp.211-219
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• 2016

Background: Panax ginseng root is used in traditional oriental medicine for human health. Its main active components such as saponins and polysaccharides have been widely evaluated for treating diseases, but secondary active components such as oligosaccharides have been rarely studied. This study aimed to assess the impact of water-soluble ginseng oligosaccharides (WGOS), which were isolated from the warm-water extract of Panax ginseng root, on scopolamine-induced cognitive impairment in mice and its antineuroinflammatory mechanisms. Methods: We investigated the impact of WGOS on scopolamine-induced cognitive impairment in mice by using Morris water maze and novel object recognition task. We also analyzed the impact of WGOS on scopolamine-induced inflammatory response (e.g., the hyperexpression of proinflammatory cytokines IL-$1{\beta}$ and IL-6 and astrocyte activation) by quantitative real-time polymerase chain reaction and glial fibrillary acid protein (GFAP) immunohistochemical staining. Results: WGOS pretreatment protected against scopolamine-induced learning and memory deficits in the Morris water maze and in the novel object recognition task. Furthermore, WGOS pretreatment downregulated scopolamine-induced hyperexpression of proinflammatory cytokines interleukin (IL)-$1{\beta}$ and IL-6 mRNA and astrocyte activation in the hippocampus. These results indicate that WGOS can protect against scopolamine-induced alterations in learning and memory and inflammatory response. Conclusion: Our data suggest that WGOS may be beneficial as a medicine or functional food supplement to treat disorders with cognitive deficits and increased inflammation.

• Hwankyungkyoyuk
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• v.12 no.1
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• pp.150-171
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• 1999

This study is aimed to systematize the contents of environmental education in the home education and to develop the environmental education. For this, this study firstly examined the characteristics and goals of home education and its relation to environmental education. Secondly, in the paradigm of environmental education this study analyzed the goals and contents of environmental education in the domain of home education which is included in the practicum subject of the 7th curriculum. Thirdly, this study examined the effective teaching and learning methods for home education and the considerations in organization of textbook contents which reflect these teaching and learning methods. Finally, this study suggested an example of textbooks which reflect all these considerations. It has been found out that: (1) the home education is based on the recognition of environmental problems related to home life, (2) the home education explains the environmental problems, and (3) the home education has its goals of acquring active attitudes and skills to solve these problems. In the teaching contents, the home education was analyzed to have the following concerning environmental education: the utilization of resources for food, clothes, and housing and home life, that is, the domain of ‘environmental sanitation’ related to food ingestion and sanitary life, the domain of ‘sound consumption life’ related to the utilization of resources and their consumption, and the domain of ‘environmental pollution’ on the prevention of every kind of pollutants in the home life. However, the environmental education in the home education according to the 7th educational curriculum has the distinctiveness from the contents of environmental education which were emphasized in the past home education. The distinctiveness are as following: (1)the resources matter is dealt with in the aspect of recycling various resouces from home life, (2)the prevention or reduction of pollutants in life which take the considerable part of environmental pollution is emphasized, (3)children's sensitivity In environment is emphasized to be developed, and (4)the importance of life is emphasized to be taught.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.541-543
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• 2004

능동적 학습(active learning)은 제한된 시간과 인력으로 가능한 정확도가 높은 분류기(classifier)를 생성하기 위하여, 훈련집합에 추가할 예제 즉 문의예제(query example)의 선정과 확장된 훈련집합으로 다시 학습하는 과정을 반복하여 수행한다. 능동적 학습의 핵심은 사용자에게 카테고리(category) 부여를 요청할 문의예제를 선정하는 과정에 있다. 효과적인 문의예제를 선정하기 위하여 다양한 방안들이 제안되었으나, 이들은 매 문의단계마다 하나의 문의예제를 선정하는 경우에 가장 적합하도록 고안되었다. 능동적 학습이 복수의 예제를 사용자에게 문의할 수 있다면, 사용자는 문의예제들을 서로 비교해 가면서 작업할 수 있으므로 카테고리 부여작업을 보다 빠르고 정확하게 수행할 수 있을 것이다. 또한 충분한 인력을 보유한 상황에서는, 카테고리 부여작업을 병렬로 처리할 수 있어 전반적인 학습시간의 단축에 큰 도움이 될 것이다. 하지만, 각 예제의 문의예제로써의 적합 정도를 추정하면 유사한 예제들은 서로 비슷한 수준으로 평가되므로, 기존의 방안들을 복수의 문의예제 선정작업에 그대로 적용할 경우, 유사한 예제들이 문의예제로 동시에 선정되어 능동적 학습의 효율이 저하되는 현상이 나타날 수 있다. 본 논문에서는 특정 예제를 문의예제로 선정하면 이와 일정 수준이상 유사한 예제들은 해당 예제와 함께 문의예제로 선정하지 않음으로써, 이러한 문제점을 극복할 수 있는 방안을 제안한다. 제안한 방안을 문서분류 문제에 적용해 본 결과 기존 문의예제 선정방안으로 복수 문의예제를 선정할 때 발생할 수 있는 문제점을 상당히 완화시킬 있을 뿐 아니라, 복수의 문의예제를 선정하더라도 각 문의 단계마다 하나의 예제를 선정하는 경우에 비해 큰 성능의 저하가 없음을 실험적으로 확인하였다./$m\ell$로 나타났다.TEX>${HCO_3}^-$ 이온의 탈착은 서서히 진행되었다. R＆D investment increases are directly not liked to R＆D productivities because of delays and side effects during transition periods between different stages of technology development. Thus, It is necessary to develope strategies in order to enhance efficiency of technological development process by perceiving the switching pattern. 기여할 수 있을 것으로 기대된다. 것이다.'ity, and warm water discharges from a power plant, etc.h to the way to dispose heavy water adsorbent. Through this we could reduce solid waste products and the expense of permanent disposal of radioactive waste products and also we could contribute nuclear power plant run safely. According to the result we could keep the best condition of radiation safety super vision and we could help people believe in safety with Radioactivity wastes control for harmony with Environ