• 반도체디스플레이기술학회지
• /
• 제16권3호
• /
• pp.93-98
• /
• 2017

2-Ethylhexyl acrylate, butyl acrylate, methyl methacrylate, and 2-hydroxyethyl methacrylate were polymerized to synthesize acrylic pressure sensitive adhesive (PSA). Alumina and graphite as a filler were added to acrylic PSA to give thermal conductivity. In case of addition of both graphite and alumina, the thermal conductivity of PSA was increased compared with alumina alone due to enhancement of contact between two fillers followed by increasing thermal path in PSA matrix.

• 보건교육건강증진학회지
• /
• 제4권1호
• /
• pp.76-82
• /
• 1987

The purpose of this study was to find out the correlation of consciousness and behavior which a group of undergraduate students have toward health. 223 students including 3 universities in Seoul were selected for this study. The results of this study could be summarized as follows. There was not high correlation ($\phi$=0.52842) and health consciousness were not enough motivation of health behavior. In conclusion, health education which were emphasis change of health behavioral formation is required.

• 한국환경복원기술학회지
• /
• 제10권3호
• /
• pp.88-99
• /
• 2007

This study is aimed to suggest a direction for the general environment education through analyzing current environment education curriculums and survey of educational needs for students in Korean universities. Since the result of this survey shows that most university students lack experience in environmental education in their secondary education, the basic educational programs as well as advanced educational programs should be included to develop a general environmental education curriculum for university students. So far, general environmental education for university students has not witnessed a clear and distinct object and direction. Since we live in a situation where environmental problems should be considered in every aspect of our society, the general environmental education curriculum for university students shall play a role to solve these problems. Additionally, we need to change the way of environment education from educating and raising the environment professionals to educating and raising people who comprehensively understand economy, society and environment under the sustainable development paradigm. Also the focus of environmental education should swift from natural science to over all perspectives. Recently, the need of interdisciplinary curriculum for the environment education field has been discussed in universities. However, it has not been integrated into the normal curriculum. In this regard, systemic improvement which enables general education curriculum to operate flexibly will be followed. The key to establish an interdisciplinary curriculum is a flexible educational curriculum system which can solve problems arising from departmental curriculums, and promptly respond to the demand of educational and social consumers. Additionally, the result of survey shows that students want diverse educational operations and teaching methods, equipping educational assistance system for these needs will be required.

• BMB Reports
• /
• 제51권8호
• /
• pp.406-411
• /
• 2018

Exosomes are small membranous vesicles which contain abundant RNA molecules, and are transferred from releasing cells to uptaking cells. MicroRNA (miRNA) is one of the transferred molecules affecting the adopted cells, including glioma cells. We hypothesized that mesenchymal stem cells (MSCs) can secrete exosomes loading miRNA and have important effects on the progress of gliomas. To determine these effects by treating exosomal miRNA in culture media of miRNA mimic transfected MSCs, we assessed the in vitro cell proliferation and invasion capabilities, and the expression level of relative proteins associated with cell apoptosis, growth and migration. For animal studies, the mice injected with U87 cells were exposed to exosomes derived from miRNA-584-5p transfected MSCs, to confirm the influence of exosomal miRNA on the progress of glioma. Based on our results, we propose a new targeted cancer therapy wherein exosomes derived from miRNA transfected MSCs could be used to modulate tumor progress as the anticancer vehicles.

• 한국과학교육학회지
• /
• 제16권1호
• /
• pp.41-50
• /
• 1996

The purpose of this study is to examine closely the flow process of science education phenomena for the political direction and improvement of science education. Therefore the science education system is analyzed in a view of the legislative system. The results are as follows: 1. The science education system is divided into the plan system, do system and see system by the criteria of plan do see that is the general process of human activity and the area is established as the field of science education administration, school science education, and science education evaluation. 2. The system model that the system characteristics and interrelationship between the systems are conceivable is suggested as the conceptions of boundary, components, variables, parameters, linkage and mishap, gatekeeper etc.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제19권1호
• /
• pp.19-41
• /
• 2015

Previous studies indicated that students tended to hold less satisfactory beliefs about the discipline of mathematics, beliefs about themselves as learners of mathematics, and beliefs about mathematics teaching and learning. However, only a few studies had developed curricular interventions to change students' beliefs. This study aimed to examine the effect of a problem-solving curriculum (i.e., Mathematical Problem Solving for Everyone, MProSE) on Singaporean Grade 7 students' beliefs about mathematical problem solving (MPS). Four classes (n =142) were engaged in ten lessons with each comprising four stages: understand the problem, devise a plan, carry out the plan, and look back. Heuristics and metacognitive control were emphasized during students' problem solving activities. Results indicated that the MProSE curriculum enabled some students to develop more satisfactory beliefs about MPS. Further path analysis showed that students' attitudes towards the MProSE curriculum are important predictors for their beliefs.

• 한국초등과학교육학회지:초등과학교육
• /
• 제32권1호
• /
• pp.47-59
• /
• 2013

The purpose of this study is to investigate the perception about STEAM education of primary teachers who have developed and applied STEAM education to their students through teacher training program. For this study, 101 among 172 attendance are responded to questionnaire of three categories consisting of development and application teaching material for STEAM instruction, and spreading STEAM education. The major findings are as follows: First, when primary teachers develop materials for STEAM education, they consider applicabilities in real classes. Second, they feel the burden of time when they develop STEAM material. Third, they think that their own program has significant educational effectiveness and that students enjoyed the program. Especially, they think that STEAM education program can raise students' interest about learning. Fourth, primary teachers point out the constraints for application of STEAM education program, which are lack of expertise and difficulty acquiring class time. Fifth, primary teachers evaluate the effect of STEAM education program on primary education is positive, and they answer that we need many teaching materials for STEAM education, operating as a regular curriculum, and securing budget. In order to spread STEAM education in field of primary education successfully, administrators have to consider and reflect the voice of teachers.

• 한국영양학회:학술대회논문집
• /
• 한국영양학회 2001년도 춘계연합학술대회 초록
• /
• pp.186.2-186
• /
• 2001

• 한국과학교육학회지
• /
• 제21권5호
• /
• pp.944-967
• /
• 2001

The purpose of this study is to compare and analyze secondary school chemistry education in Korea and China in order to identify implications for the improvement of Korean chemistry education. The school systems, curricula, and teacher education related to secondary chemistry education of both countries were compared and analyzed. The 6-3-3-4 school system is used in both countries, and national school curricula are formulated by the Ministries of Education in both countries. The 1996 chemistry curricular standard for advanced middle schools in China, and 1997 chemistry curriculum for Korean high schools were compared in several aspects, followed by comparisons of chemistry teacher education in both countries. Based on the comparative analysis of chemistry education, some ideas and issues which provide implications for improving Korean high school chemistry education were identified. Chemistry teaching in the junior secondary schools, tentative implementation of curricula, required course work in chemistry, structure of curricula, oral assessments, probation of teachers and other issues are identified and discussed in this study.

• 임상간호연구
• /
• 제14권3호
• /
• pp.117-128
• /
• 2008

Purpose: This study was conducted to examine the differences of knowledge, perception, and performance between the points of time before and after ICU nurses had the backrest elevation education. Method: The study subjects were 58 nurses at a medical and surgical ICU of one general Y hospital located in Seoul. They received the education, including backrest elevation guideline and related education materials. Data were collected from May 11 throughout August 12, 2007 with a structured questionnaire. Results: 1) There were significant differences in the mean scores of knowledge(2.21 at pre-education, 5.24 at post-education), perception(36.96 at pre-education, 53.36 at post-education), and performance(32.08 at pre-education, 43.51 at post-education), 2) There was a significant correlation between nurse's perception and performance (p=.000). 3) The nurse's perception regarding the importance of the back rest elevation education was significantly effective on their performance (p=.000). Conclusion: The backrest elevation education would contribute to improve ICU nurse's knowledge, perception and performance. The more the nurses would consider the importance of this education, the better they would perform the nursing intervention of backrest elevation.