• Journal of Korean Library and Information Science Society
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• v.44 no.4
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• pp.177-207
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• 2013

This study was conducted to verify the effects of an school library program using picture books and graphic organizers on first grade children's literacy abilities and book lending, and to evaluate the program with mothers' and mentors' responses. Twenty eight first graders of an elementary school in Kyunggi province participated in this program. Their reading and writing abilities were tested, and their book lending behaviors were compared before and after the whole program. The participants explored 20 picture books by reading aloud and expressed their responses on the graphic organizers over 11 weeks. The findings of this study after the whole session was complete were as follows. First, participants significantly improved in reading comprehension and writing assessed in terms of fluency, format, organization, expression, contents, and themes. Second, they lent books more frequently from the library than before. Third, participants' mothers showed great satisfaction for the program in that it enhanced child's reading ability, reading attitude, and mother's interest in children's books and library, and mentors also reported very positive impact of this program to themselves.

• Journal of Korean Elementary Science Education
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• v.29 no.1
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• pp.56-68
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• 2010

The purpose of this study was to investigate the elementary school teachers' perceptions about the science subject exclusive system. For this study, we developed the questionnaire to investigate teachers' perceptions and 43 elementary school teachers participated in the questionnaire test. And we used participation observation method to investigate characteristics the exclusive elementary science teacher and the elementary school homeroom teacher's science classes. After participation observation, we had interviews with exclusive elementary school science teacher and elementary school homeroom teacher. The results showed that elementary school teachers thought the science subject exclusive system was very necessary. And elementary school teachers thought that the exclusive elementary science teacher had higher professionality about teaching science subject than the homeroom teacher. Then, they expected that the strong points of science subject exclusive system would be some solution to the weak points of homeroom teachers' science classes. We suggested that it must be to enlarge the science subject exclusive system and develope in-service teacher program for the exclusive elementary science teachers.

• Nuclear Engineering and Technology
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• v.55 no.8
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• pp.2835-2843
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• 2023

After an emergency shutdown of a lead-bismuth fast reactor, thermal stratification occurs in the upper Plenum, which negatively impacts the integrity of the reactor structure and the residual heat removal capacity of natural circulation flow. The research on thermal stratification of reactors has mainly been conducted using an experimental method, a system program, and computational fluid dynamics (CFD). However, the equipment required for the experimental method is expensive, accuracy of the system program is unpredictable, and resources and time required for the CFD approach are extensive. To overcome the defects of thermal stratification analysis, a high-precision full-order thermal stratification model based on CFD technology is prepared in this study. Furthermore, a reduced-order model has been developed by combining proper orthogonal decomposition (POD) with Galerkin projection. A comparative analysis of thermal stratification with the proposed full-order model reveals that the reduced-order thermal stratification model can well simulate the temperature distribution in the upper plenum and rapidly elucidate the thermal stratification interface characteristics during the lead-bismuth fast reactor accident. Overall, this study provides an analytical tool for determining the thermal stratification mechanism and reducing thermal stratification.

• Journal of Electrochemical Science and Technology
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• v.2 no.4
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• pp.204-210
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• 2011

Thin film electrodes have been intensively studied for active materials and current collectors to enhance the electrochemical performance. Here, porous structures of nickel-based oxide films, consisting of nickel oxide and copper (II) oxide, which was derived from the copper substrate during the annealing process, were deposited on metallic copper foils. The half-cell tests revealed excellent capacity retention after $80^{th}$ charge/discharge cycles. Some films showed an excess of the theoretical capacity of nickel oxides, which mainly originate from partially oxidized copper substrates during annealing. These results exhibit that both a preparation method of an active materials and partially oxidized current collectors could be important roles to apply thin film electrodes.

• Journal of the Korean Society of Earth Science Education
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• v.8 no.2
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• pp.183-192
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• 2015

The purpose of this study was to identify STEAM education program fit for club activities in consideration of the present curriculum and investigate its effect on science club students' self-efficacy and attitude toward science by applying it to science club students. In consideration of such chapters as 'Solar System' and 'Exosphere and Space Development' in the 2009 Revised Curriculum, this study developed a STEAM education program related to the observation of the solar system and the measurement of a distance of the stars in consideration of the present curriculum. For this study we selected 14 science club students in H Middle School, located in G Province and applied a 7 weeks' program to them. To find out change in their self-efficacy and attitude toward science, this study conducted tests of self-efficacy and attitude toward science for a single group before and after introducing this program and analyzed the results. The results of this study could be summarized as below. Firstly, science club activities with this STEAM education program applied improved students' self-efficacy significantly. Secondly, there was a significant difference found in students' attitude toward science through science club activities with this STEAM education program applied as they showed higher scores in the attitude toward science in the posttest than the pretest. Lastly, despite a research limit that this science inquiry program was conducted for a short period of time, this program was found to have positive effect on the improvement of students' self-efficacy and attitude toward science.

• Journal of The Korean Association For Science Education
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• v.24 no.2
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• pp.343-356
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• 2004

The study aimed to assess the effectiveness of Korea-Israel science teachers inservice program. Thirty science teachers who participated in the inservice program responded to pre- and post tests of the survey instrument on (a) their perceptions to creativity fostering science education and understandings of current education status and reform movement, (b) degrees of changes about understanding of creativity and implementing teaching methods for fostering creativity before and after the program, and (c) their evaluative opinions on the program. Suggestions for improving the program were proposed as follows: First, a pre-service workshop for the program should be provided in order to clearly realize the essential purpose of the program through increase of participating teachers' understanding of facing conditions of education, school policy, reform movement toward science education fostering creativity. Second, for the content of the program, creativity is more emphasized. Appropriate content and sufficient time arrangement for creativity will develop teachers' conceptual understanding of creativity in depth. Third, classroom observation of exemplary science teaching for fostering creativity should be sufficiently arranged. Fourth, amount of content and time allotment to Israel culture, religion, and education system should be reduced.

• Biomedical Science Letters
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• v.24 no.4
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• pp.426-429
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• 2018

Chronic eosinophilic leukemia (CEL) is characterized by eosinophilia and organ damage. Imatinib is widely used for treating CEL, chronic myeloid leukemia (CML) and acute myeloid leukemia (AML). Unfortunately, the cancer cells gain resistance against the drug after prolonged molecular-targeted therapies. Imatinib-resistant EoL-1 (EoL-1-IR) cells were produced from chronic eosinophilic leukemia cells (EoL-1) after treatment with imatinib for a long duration. Two-dimensional electrophoresis (2-DE) analysis revealed numerous protein variations in the EoL-1 and EoL-1-IR sub-types. Compared to the EoL-1 cells, expression levels of TIP49, RBBP7, ${\alpha}$-enolase, adenosine deaminase, C protein, galactokinase, eukaryotic translation initiation factor, $IFN-{\gamma}$, and human protein homologous to DROER were increased, whereas core I protein, proteasome subunit p42, heterogeneous ribonuclear particle protein, chain B, and nucleoside diphosphate were decreased in the EoL-1-IR cells. Taken together, these results contribute to understanding the pathogenic mechanism of drug-resistant diseases.

• Journal of Korean Elementary Science Education
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• v.43 no.2
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• pp.252-268
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• 2024

This study developed a field trip program called "Planning a science exhibition" and explored elementary science-gifted students' perceptions of the program and learning experiences influencing them. To this end, 56 elementary science-gifted students in grades 4-6 from in an university-affiliated science-gifted education institute in metropolitan area were selected to participate in the field trip program. After the program, the students answered a survey regarding their perceptions of the program. Additionally, 19 students were selected for group interviews to further explore their survey responses. Results showed that many elementary science-gifted students perceived the program positively in various cognitive and affective aspects. Some students also pointed out certain limitations of the program. Five interconnected learning experiences were identified as influencing the students' perceptions: "experiences fostering creativity", "non-residential camp-type project-based learning experiences", "self-directed learning experiences", "experiences utilizing digital devices", and "collaborative experiences". Educational implications regarding these results were discussed.

• Journal of East-West Nursing Research
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• v.14 no.2
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• pp.32-38
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• 2008

Purpose: The effects of job participation on self-esteem and life satisfaction were investigated. Methods: Seventy residents of D welfare center located in G city who were >60 yr-of-age were selected for the study. The SERS research tool (Nugent and Thomas, 1993; modified by Koh, 2002) was used to assess self-esteem before and after a job participation program. The Cronbach's ${\alpha}$value-based reliability of this tool was 0.923 and 0.920 before and after the job participation program, respectively. Cronbach's ${\alpha}$value-based life satisfaction as measured according to Choi (1986) was 0.932 and 0.933 before and after the job participation program, respectively. Results: The hypothesis that job participation program increases self esteem was supported by the results. The mean self esteem of subjects before and after the job program, 3.31 and 3.48, respectively, represented a significant increase. The hypothesis that the job participation program increases life satisfaction was supported by the results. The mean life satisfaction index of subjects before and after the program, 3.04 and 3.24, respectively, represents a significant increase. Conclusions: Increased job opportunities and income guarantee for adults, particularly the elderly, can increase self-esteem, life satisfaction, and emotional stability.

• Journal of The Korean Society of Integrative Medicine
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• v.11 no.1
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• pp.113-120
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• 2023

Purpose : This study aims to investigate occupational therapy students' perceptions of sensory integration therapy and the effect of an educational program on these perceptions and future preferences. Methods : The participants were 200 occupational therapy students in Busan and Gyeongsangnam-do. A primary survey was first conducted to shed light on students' perceptions of sensory integration therapy, followed by an education program on sensory integration provided through an online video. After this training on sensory integration therapy, an additional survey assessed the their preferred employment routes and intention to take educational courses on clinical sensory integration therapy in the future. A secondary survey was then conducted, using the same form as the primary survey, to identify changes in the students' perceptions of and preferences for sensory integration therapy. A frequency analysis using descriptive statistics was employed to identify the participants' general characteristics, employment-related preferences, and intention to take courses on sensory integration, and a paired samples t-test was used for a comparative analysis of the students' perceptions before and after the education program. Results : In terms of the students' perceptions of sensory integration therapy, the variables of efficiency, facilitation, and expertise showed statistically significant differences before and after the educational program, which resulted in a positive change in their overall perceptions of the therapy after the program. In relation to their preferred employment routes after the program, 100 students (50 %) answered the "field of adults," and 100 (50 %) students answered the "field of children." Conclusion : The findings of this study demonstrated that sensory integration education positively influences occupational therapy students' preferences for and perceptions of sensory integration therapy. Additional research is recommended to organize a more systematic education program and investigate employees in organizations related to children with disabilities.