• Journal of Christian Education in Korea
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• v.76
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• pp.213-235
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• 2023

Purpose of study: The focus of this study is to explore the potential of using the metaverse platform as a mission field for the MZ generation and to derive utilization strategies. Research content and method: The content and methodology of the research are as follows: examining the metaverse platforms most widely utilized by the MZ generation from a social and cultural perspective, reviewing the characteristics of the MZ generation, and exploring elements in the metaverse that can be utilized as a mission field (Chapters I and II). The study explores the possibilities of approaching the metaverse as a mission site, presenting spatial utilization strategies centered around the active engagement potential of the MZ generation (Chapters III, IV, and V). Conclusions and Suggestions: The conclusion and recommendations are as follows: The metaverse space is considered familiar and highly appealing to the MZ generation, revealing the potential for its effective use and expansion. Therefore, it is urgent not only to utilize the metaverse space as a Christian mission field but also to take responsibility for its use and expansion as a Christian cultural space.

• Journal of Surface Science and Engineering
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• v.49 no.6
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• pp.498-506
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• 2016

Electrochemical measurement using a LSCF6428 electrode was performed to estimate the oxygen potential gradient in the electrode layer and a long time stability test was performed by applied potential to learn the overpotential effect on the LSCF6428 electrode. By fitting the observed impedance spectra, it was obtained that the amount of faradic current decreased with distance from cathode/electrolyte interface. Oxygen potential gradient was estimated to occur within 1 um region from the cathode/electrolyte interface at an oxygen partial pressure of 10-1 bar. The segregation of cation rich phases in the LSCF6428 electrode suggests that kinetic decomposition took place. However, impedance response after applying the potential showed no changes in the electrode compared with before applying potential. The obtained results suggest that segregation of a secondary phase in a LSCF6428 cathode is not related to performance degradation for solid oxide fuel cells (SOFCs).

• Child Health Nursing Research
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• v.12 no.3
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• pp.351-358
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• 2006

Purpose: This study was attempted to find out the differences of characteristics between potential substance-abuse group and healthy group of middle school students in Busan. Method: The participants were 458 middle school students in Busan. The data were collected from 1st September 2004 to 31th October 2004 using structured questionnaire, and then were analyzed by SPSS-WIN 10.0 program with frequency, percentage, mean, standard deviation and $X^2-test$. Results: 23.6% of the subjects have been smoking, and 16.2% of them have been drinking. 18.6% of the subjects was classified to potential substance-abuse group based on the cut-point suggested by Lee et al.. The characteristics of potential substance-abuse adolescents are that they have religion and siblings, that their parents have divorced, that they don't live with their parents, and that their perceived health state is bad. Conclusion: Based on the findings of this study, It is necessary to develop a substance abuse prevention education program for potential substance-abuse group.

• Journal of Ginseng Research
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• v.46 no.1
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• pp.62-70
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• 2022

Background: Maternal Toxoplasma gondii (T. gondii) infection during pregnancy has been associated with various mental illnesses in the offspring. Ginsenoside Rh2 (GRh2) is a major bioactive compound obtained from ginseng that has an anti-T. gondii effect and attenuates microglial activation through toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signaling pathway. GRh2 also alleviated tumor-associated or lipopolysaccharide-induced depression. However, the effects and potential mechanisms of GRh2 on depression-like behavior in mouse offspring caused by maternal T. gondii infection during pregnancy have not been investigated. Methods: We examined GRh2 effects on the depression-like behavior in mouse offspring, caused by maternal T. gondii infection during pregnancy, by measuring depression-like behaviors and assaying parameters at the neuronal and molecular level. Results: We showed that GRh2 significantly improved behavioral measures: sucrose consumption, forced swim time and tail suspended immobility time of their offspring. These corresponded with increased tissue concentrations of 5-hydroxytryptamine and dopamine, and attenuated indoleamine 2,3-dioxygenase or enhanced tyrosine hydroxylase expression in the prefrontal cortex. GRh2 ameliorated neuronal damage in the prefrontal cortex. Molecular docking results revealed that GRh2 binds strongly to both TLR4 and high mobility group box 1 (HMGB1). Conclusion: This study demonstrated that GRh2 ameliorated the depression-like behavior in mouse offspring of maternal T. gondii infection during pregnancy by attenuating the excessive activation of microglia and neuroinflammation through the HMGB1/TLR4/NF-κB signaling pathway. It suggests that GRh2 could be considered a potential therapy in preventing and treating psychiatric disorders in the offspring mice of mothers with prenatal exposure to T. gondii infection.

• Communications of the Korean Mathematical Society
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• v.20 no.3
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• pp.521-529
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• 2005

We prove that the dimension of the space of positive (bounded, respectively) solutions for the Schrodinger operator whose potential q is nonnegative on a graph with q-regular ends is equal to the number of ends (q-nonparabolic ends, respectively).

• East Asian mathematical journal
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• v.25 no.3
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• pp.379-397
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• 2009

In this paper we apply to Renzulli's Teaching and Learning models for mathematically gifted students based on the gifted science education center in university. Gifted students were very positive reaction in solving problems creatively using this program, and they were challenging and very confident performing new tasks. They reacted variously in debates with their classmates, in self-initiative studying. So more positive changes are needed for the activities using the gifted learning-teaching program to let each student have full use of his or her possibility and potential.

• Kyungpook Mathematical Journal
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• v.63 no.4
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• pp.639-645
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• 2023

An almost Yamabe soliton is a generalization of the Yamabe soliton. In this article, we deduce some results regarding almost gradient Yamabe solitons. More specifically, we show that a compact almost gradient Yamabe soliton having non-negative Ricci curvature is trivial. Again, we prove that an almost gradient Yamabe soliton with a non-negative potential function and scalar curvature bound admitting an integral condition is trivial. Moreover, we give a characterization of a compact almost gradient Yamabe solitons.

• 한국정보교육학회:학술대회논문집
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• 2010.08a
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• pp.119-123
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• 2010

Nowadays it is required for a student to have the ability to select right things in quantity of knowledge and constructing those in the right way for the individual. Because memorizing a little bit of everything doesn't allow a person to work up to their potential and be the person society wants. In the basis on the revised Information and Communications Technology guidelines at elementary and middle school, it is demanded to start education in elementary schools. Meanwhile elementary school students usually feel bored or find it difficult in learing through the existing program. So I will plan the lesson by Scratch program for programming education and see the effect of this after using that method.

• Journal of The Korean Association For Science Education
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• v.23 no.1
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• pp.1-8
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• 2003

The purpose of present study was to develop teaching-learning materials based virtual reality technology(VRT), and to examine the effect of it on the knowledge achievement of biology. Authoring tool of virtual reality(VR) was 3D Webmaster made in Superscape Ltd., United Kingdom. Educational materials was developed for the structure and function of eye of life field in the 10th science. It was learner-directed and interactive educational material using the Web-based and desktop VR. The result showed a meaningful improvement on the achievement. Using 3D VR shows the potential of available education media in the next generation as science teaching-aided materials, which especially was efficient in the understanding and perception of abstract or difficult to direct experience learning contents.

• Research in Mathematical Education
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• v.22 no.2
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• pp.99-121
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• 2019

This article looks back and also looks forward at the values aspect of school mathematics teaching and learning. Looking back, it draws on existing academic knowledge to explain why the values construct has been regarded in recent writings as a conative variable, that is, associated with willingness and motivation. The discussion highlights the tripartite model of the human mind which was first conceptualised in the eighteenth century, emphasising the intertwined and mutually enabling processes of cognition, affect, and conation. The article also discusses what we already know about the nature of values, which suggests that values are both consistent and malleable. The trend in mathematics educational research into values over the last three decades or so is outlined. These allow for an updated definition of values in mathematics education to be offered in this article. Considering the categories of values that might be found in mathematics classrooms, an argument is also made for more attention to be paid to general educational values. After all, the potential of the values construct in mathematics education research extends beyond student understanding of and performance in mathematics, to realising an ethical mathematics education which is important for thriveability in the Fourth Industrial Revolution. Looking ahead, then, this article outlines a 4-step values development approach for implementation in the classroom, involving Justifying, Essaying, Declaring, and Identifying. With an acronym of JEDI, this novel approach has been informed by the theories of 'saying is believing', self-persuasion, insufficient justification, and abstract construals.