• 한국엔터테인먼트산업학회논문지
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• 제13권7호
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• pp.479-485
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• 2019

본 연구는 봉사학습 기반의 피부미용 교양수업 운영에 대한 학습 효과를 분석하여 도출하고, 이를 바탕으로 대학 교양교육의 목적과 가치에 대해 성찰하여 뷰티봉사학습의 활성화를 위한 기초자료로 제공하고자 한다. 그 결과 연구대상으로 최종 선정된 30명 중 여학생이 24명(80.0%)이었고, 학년은 3학년 학생이 16명(53.3%)으로 가장 많았다. 전공은 인문사회계열 12명(40.0%), 종교는 21명(70.0%)이 무교로 각각 가장 높게 조사되었다. 봉사학습이 자기효능감과 삶의 질에 미치는 영향을 알아보기 위하여 자기효능감과 삶의 질의 사전- 사후 변화를 분석한 결과 통계적으로 유의미한 차이가 나타나 봉사학습이 자기효능감과 삶의 질 향상에 효과가 있는 것으로 확인할 수 있었다. 봉사학습에 대한 만족도는 평균 4.12점으로 대체적으로 봉사학습에 대해 만족한 것으로 파악되었으며, 봉사학습 지속 의도는 평균 3.99점으로 나타나 지속적인 봉사학습 의향이 있는 것으로 조사되었다. 또한 연구대상자의 성별, 학년, 전공, 종교 등의 특성에 따라 봉사학습의 만족도 및 지속의도에 차이가 없는 것으로 조사되었다. 이상의 결과 봉사학습 기반의 피부미용 교양교육은 학습자들의 자기효능감과 삶의 질 향상에 긍정적 영향을 미치는 것을 알 수 있었다. 이는 학습자들이 대학교육을 통해 공동체 의식 함양과 사회적 자아로서의 책임감을 강화하는 데 도움이 될 것이라 생각된다.

• 대한지구과학교육학회지
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• 제13권3호
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• pp.211-225
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• 2020

이 연구의 목적은 예비교사들이 과학교과서를 학습과정에서의 시선 이동, 교과서에 제시된 화살표에 대한 인지 여부, 그리고 화살표에 의한 시선 행동의 변화 등을 조사하여 분석하는 것이었다. 연구를 위해 시선 이동 추적 장치인 eye-tracker를 이용하였으며, 교사 양성대학에 다니는 예비교사 10명을 선정하여 진행하였다. 연구에 이용된 과학교과서 단원은 지구과학 영역 중 하나인 '날씨와 우리 생활' 단원이었다. 연구결과, 첫째, 예비교사들은 과학교과서를 학습과정에서 그림 보다는 글에 많은 시간을 할애하는 것으로 조사되었다. 둘째, 예비교사들은 과학교과서에 제시된 화살표에 대해 시선을 집중하지 않는 편으로 분석되었다. 셋째, '화살표에 의한 시선 행동 유도'가 일어나기 위해서는 화살표에 대한 충분한 집중이 이루어져야 함을 확인할 수 있었다. 이러한 연구 결과는 화살표와 같은 과학교과서의 학습 요소에 대한 학습자의 시각적 주의 투여의 중요성을 시사해주며, 더불어 효과적인 학습을 위해 시선 이동 연구 자료를 통한 교과서 내 학습 요소에 대한 시각적 주의 투여를 유도할 수 있는 교과서 편집 디자인 개발이 중요함을 시사해준다.

• 생약학회지
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• 제41권3호
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• pp.196-203
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• 2010

Black sesame (Sesami semen nigrum) has been used to treat dizziness, earnoise, constipation in the traditional Chinese medicine. In the present study, we assessed memory enhancing properties of 70% ethanolic extract of black sesame (EBS70) and its ameliorating activities on learning and memory impairments induced by scopolamine. Drug-induced amnesia was made by scopolamine treatment (1 mg/kg, i.p.). Single EBS70 (200 mg/kg, p.o.) administration significantly enhanced cognitive function and attenuated scopolamine-induced cognitive impairments as determined by the passive avoidance and Y-maze tasks (P<0.05) and also reduced escape-latency on the Morris water maze task (P<0.05). In addition, EBS70 increased BDNF expression in hippocampus 4 h after its administration (P<0.05). These results suggest that EBS70 enhances learning and memory in normal state and attenuates amnesic state caused by cholinergic dysfunction.

• 한국초등과학교육학회지:초등과학교육
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• 제32권2호
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• pp.127-138
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• 2013

The purpose of this study was to select the basic words of physics for science education which were learned through everyday life or school education and be foundation of learning science. For this, we collected all words in the 'Wise Life' textbooks by 7th and 2007 National Curriculum, and extract the science words. As a result, there were 8,970 words in 8 textbooks of 'Wise Life', and about 18% of them, 1,585 words, were science words. There were 266 kinds of science words and most of them were biology words. And the textbooks by 2007 National Curriculum had more science words than by 7th's. Finally we selected 24 basic words of science only in the physics area by comprehensively considering difficulty, need and frequency.

• Journal of Korean Biological Nursing Science
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• 제21권3호
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• pp.231-238
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• 2019

Purpose: In 2015, South Korea had the highest global smartphone penetration (88%). However, smartphone addiction can seriously disrupt daily life and have a major negative impact on academic achievement. Methods: A structured questionnaire was completed by 250 nursing students for this descriptive study. Results: Students who were older, more satisfied with their major, exercised, and used their smartphone for less than 30 minutes before sleeping had higher learning engagement than those who were younger, less satisfied, did not exercise and used their smartphone for more than three hours. Quality of sleep and smartphone addiction were negatively correlated as was quality of sleep and daytime sleepiness. Interestingly, sleep pattern did not impact learning engagement directly. Conclusion: Smartphone usage influences learning engagement of nursing students rather than their sleeping patterns, which suggests a need to develop self-disciplining strategies for smartphone use to enhance learning engagement.

• Molecules and Cells
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• 제19권3호
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• pp.375-381
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• 2005

Phospholipase C-${\beta}$ (PLC-${\beta}$) hydrolyses phosphatidylinositol 4,5-bisphosphate and generates inositol 1,4,5-trisphosphate in response to activation of various G protein-coupled receptors (GPCRs). Using glial cells from knock-out mice lacking either PLC-${\beta}1$ [PLC-${\beta}1$ (-/-)] or PLC-${\beta}3$ [PLC-${\beta}3$ (-/-)], we examined which isotype of PLC-${\beta}$ participated in the cellular signaling events triggered by thrombin. Generation of inositol phosphates (IPs) was enhanced by thrombin in PLC-${\beta}1$ (-/-) cells, but was negligible in PLC-${\beta}3$ (-/-) cells. Expression of PLC-${\beta}3$ in PLC-${\beta}3$ (-/-) cells resulted in an increase in pertussis toxin (PTx)-sensitive IPs in response to thrombin as well as to PAR1-specific peptide, while expression of PLC-${\beta}1$ in PLC-${\beta}1$ (-/-) cells did not have any effect on IP generation. The thrombin-induced $[Ca^{2+}]_i$ increase was delayed and attenuated in PLC-${\beta}3$ (-/-) cells, but normal in PLC-${\beta}1$ (-/-) cells. Pertussis toxin evoked a delayed $[Ca^{2+}]_i$ increase in PLC-${\beta}3$ (-/-) cells as well as in PLC-${\beta}1$ (-/-) cells. These results suggest that activation of PLC-${\beta}3$ by pertussis toxin-sensitive G proteins is responsible for the transient $[Ca^{2+}]_i$ increase in response to thrombin, whereas the delayed $[Ca^{2+}]_i$ increase may be due to activation of some other PLC, such as PLC-${\beta}4$, acting via PTx-insensitive G proteins.

• 한국초등과학교육학회지:초등과학교육
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• 제36권3호
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• pp.273-285
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• 2017

The purpose of this study is to develop a program that enables students to participate in various experiential learning places in order to provide various experiences to students for solve the problem of prejudice to specific places such as science museum, zoo and botanical garden. For this purpose, the surveys were conducted about experiential places and awareness of experiential learning. 88 elementary school teachers participated in the survey. As a result, they were positive about the use of experiential learning in elementary science instruction, but there were responses that a lot of preparations for the progress and efforts were needed. Therefore, if instructional materials and teaching materials for experiential learning are given, it is confirmed that the intention of using is increased. And the results were analyzed and the experiential sites were categorized into 12 types. We could present basic data that can diversify not only the science museum but also science related experiential places. We developed a learning program related to 'The Liquid and Gas' unit of the third grade, And 'Life unit of Plant' unit of the third $4^{th}$ grade. Through this study, we intend to help science experiential learning to be activated and student - centered experiential learning to be realized.

• 공학교육연구
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• 제21권5호
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• pp.3-9
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• 2018

This article examined the effects of self-reflecting journal writing in speaking class on academic performance of science and engineering students. To assess the effect, 27 science and engineering students from the "Speech and Life" class were asked to keep a self-reflecting journal. Pre and post-intervention surveys were conducted, followed by the analysis of learning effect and satisfaction. In addition to the pre and post-intervention surveys, an additional survey on speaking ability was conducted at the same time and the change of the students' ability was assessed. Results showed that after writing self-reflection journals, participants' learning effect and satisfaction has increased, and their speaking performance was also improved.

• 한국과학교육학회지
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• 제22권4호
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• pp.806-819
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• 2002

본 연구는 과학을 공부해야하는 필요성에 대한 초등학생과 초등교사의 관점을 조사하는 것을 목적으로 수행되었다. 서울시 소재 2개 초등학교 6학년 학생 565명과 초등학교 교사 57명을 대상으로, "과학을 왜 공부해야 하는가?"라는 질문에 대하여 예와 이유를 함께 응답하도록 하였다. 계통도 분석법으로 응답을 분석한 결과, 학생과 교사 모두 주로 가전생활용품이나 건강 증진, 재난이나 위기 극복 등의 일상생활과 관련된 예를 들어 응답하였고, 전체적으로 개인적 유용성 측면에서 일상생활의 용이성과 사회적 유용성 측면에서 일상생활의 편리성 증진을 위해서라는 응답이 주를 이루었다. 즉 과학 학습의 필요성에 대해 초등학생과 초등교사는 "(과학의 외재적 가치를 중시하는 관점에서 일상생활과 관련된 예를 들어가며) 개인적 차원에서 일상생활의 용이성을 증진시키고 사회적 차원에서 인류 생활의 편리성을 증진시키기 위해서"라는 관점을 주로 가지고 있었다. 또, 초등학생과 초등교사의 관점은 복합적이기보다는 단일적이었으며, 과학의 내재적 가치를 중시하는 관점이 상대적으로 빈약하였다. 이러한 초등학생과 초등교사의 관점은 과학의 사회적 의미와 역할이 증대되고 있는 현 시점에서 바람직한 관점으로 여겨지나, 다소 편중되어 있었다.

• 한국지역사회생활과학회지
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• 제17권2호
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• pp.69-79
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• 2006

The purpose of this study was to examine the relationships of mothers exhibiting maternal overprotective behavior and their children's aggression, withdrawal and perceived competence. For data collecting, 339 children attending the fifth/sixth grade of elementary school in Kwangju were involved. The major findings were as follows: First, maternal overprotective behavior related to school learning showed a significant difference due to the children's sex. Furthermore, maternal overprotective behavior related to daily life and school learning showed a significant difference due to the children's grade. Second, maternal overprotective behavior related to daily life showed a significant difference due to the mother's education level. Finally, the result of multiple regression analysis on the effects of the mother's overprotective behavior to the children's aggression, withdrawal, and perceived competence indicated that maternal overprotective behavior related to daily life and school learning was the significant contributing factor. All in all, the variables accounted for 11% of the children's aggression, 11% of the children's withdrawal, and 6% of the children's perceived competence.