• Journal of Conservation Science
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• v.34 no.3
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• pp.157-166
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• 2018

In this study, gelatin binding ability was increased by adding cross linking agent to improve adhesive characteristic of animal glue. Animal glue added genipin measured gel strength and viscosity, the structural analysis, the color retention degree, elution degree, and rupture strength. And the water resistance and ultraviolet light resistance with the addition of genipin were compared. As a result of the study, the gel strength and viscosity increased with the amount of genipin. As a result of the structural analysis, in gelatin, the absorption peak of the triple structure of collagen structurally stabilized was observed. As a result of the color retention degree, the film was observed because of the lowered brightness. The amount of elution glue was increased with addition of genipin at $50^{\circ}C$ distilled water condition and rupture strength has increased with the amount of genipin. In the water resistance and light fastness, there was no appearance before and after deterioration due to the addition of genipin. Based on the results of this study, it confirmed the adhesive characteristics of animal glue added genipin and examined the experimental method applicable for animal glue. After the addition of genipin, flexibility, re-solving, adhesive force, and curing speed, which are unique characteristics of glue, can be improved without disappearing, so it is expected that it will be applicable to production of animal glue and conservation of cultural heritage when homogeneous glue is secured.

• Korean Journal of Childcare and Education
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• v.8 no.3
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• pp.5-23
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• 2012

The purpose of this study was to investigate and compare how the Enneargram personality types of teachers in early childhood education and care would affect their job satisfaction and stress coping strategies. The findings are as follows. First, as to the distribution of the participants' Enneargram personality types, the most common was the Peacemaker type and the least common was the Achiever type. Second, for teachers' job satisfaction, there was a statistically significant difference in the job-related subcategory according to their personality types. The post-hot comparison showed that the Loyalist type showed the lowest score in job-related job satisfaction. Third, in terms of stress coping strategies, there was a statistically significant difference in the psychological coping strategy according to their personality types. The post-hot comparison showed that the Individualist type showed the highest score in psychological coping strategy. The implications for future studies are also discussed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.578-585
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• 2020

The purpose of this study was to investigate the Effects of Happiness on Organizational Commitment According to the Socio-demographic Characteristics of Teachers of Infants and Toddlers. The study subjects were 167 infant teachers in Ulsan. The collected data were analyzed through frequency analysis, reliability analysis and correlation analysis on SPSS 22.0 program, and multiple regression analysis was conducted for the causal relation between variables. The analysis results revealed that self-regulating happiness, a sub-factor of happiness of infant teachers, had a significant effect on their affective commitment, but factors of internal and external happiness did not significantly affect affective commitment. Second, self-regulating happiness had a significant effect on their continuance commitment. Third, the self-regulating happiness had a significant effect on their normative commitment. This study is considered to provide the basic data for preparing a practical intervention plan for improving the organizational commitment of infant teachers.

• Journal of Conservation Science
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• v.35 no.6
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• pp.664-669
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• 2019

Yeonpyo-beob is a method of manufacturing pigments using bamboo trunk and glue solution. Glue solutions of concentrations 1, 5, and 10% were employed to manufacture pigments, and the characteristics of pigment manufacturing were analyzed according to these concentrations. The pigment manufacturing process can be divided into holding and drying phases. The holding phase involves the sedimentation of relatively large particles, whereas the drying phase involves the sedimentation of small particles. The layers formed during the drying phase have almost similar forms regardless of the concentration of the glue solution. If the concentration of the glue solution is low in the holding phase, the particles are mixed and the formation of a layer is difficult. In contrast, when the concentration of the glue solution is higher, the layer of the pigment is more distinct. These results confirmed that the differences in viscosity due to the variation in the concentration of the glue solution affect the sedimentation velocity of the pigment particles, thereby affecting the formation of the layer of the pigment and the pigment manufacture. Consequently, applying 10% glue solution to reduce the sediment velocity is deemed suitable for the stratification of the pigment particles and the manufacture of pigments.

• Composites Research
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• v.30 no.4
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• pp.235-240
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• 2017

Animal glue, a water-soluble adhesive, has been used historically for high-performance traditional furniture despite the disadvantage of weakness against moisture. Many scientists studied the ways to improve water resistance of animal glue. Improvements on the interfacial, thermal, and water resistance properties of wood sandwich composites (WSC) was studied with carbon nanotube (CNT) wt% in animal glue. Real-time temperature of WSC was measured after WSC was heated with increasing CNT wt%. Lap shear test was performed to determine the interfacial properties of wood and animal glue with CNTs. Water resistance properties of animal glue were determined by lap shear test using specimens dipped in water and the results were compared with the dry case. Hydrophobicity of animal glue by static contact angle was correlated with the variation of lap shear test. Interfacial, thermal, and water resistance properties for animal glue were improved with properly added CNTs.

• Journal of Conservation Science
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• v.29 no.1
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• pp.25-33
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• 2013

This study aims to investigate the film performance by physical properties of glue and gelatin in traditional paint(Dancheong). To do this, homemade, commercial glue and gelatin was selected and evaluated water reaction and weatherproof. The result, the highest gel strength, gelatin was better than acrylic acid ester resin, when compared with hygroscopic property and adhesive property. And that was better than in any others, when compared with water-proofing.

• Journal of Digital Contents Society
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• v.18 no.4
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• pp.659-669
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• 2017

The purpose of this study is to develop a copyright education program for the directors and teachers in kindergartens and day care centers. In this study, these programs were developed based on the actual situation of knowledge, copyright education requirements, and professional opinions. In this way, a copyright education programs were designed. Through the program, the directors and teachers were trained on the subject. Then, the overall evaluation was carried out through an open questionnaire and in-depth interview. Through this evaluation, the program was modified. These programs were made up of education purposes, education objectives, education contents, education methods, operating methods, and education evaluation. Education content was intended to be educated through examples from kindergartens and day care centers.

• Korean Journal of Biological Psychiatry
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• v.22 no.2
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• pp.40-46
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• 2015

Neuroglial cells are fundamental for brain homeostasis and defense to intrinsic or extrinsic changes. Loss of their function and over-reactivity to stimuli contribute to the aging of brain. Alzheimer's disease (AD) could be caused by more dramatic response in neuroglia associated with various chemokines and cytokines. Neuroglia of the AD brain shares some phenotypes with aging neuroglia. In addition, neuroglial activation and neuroinflammation are commonly showed in neurodegeneration. Thus neuroglia would be a promising target for therapeutics of AD.

• Korean Journal of Biological Psychiatry
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• v.22 no.2
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• pp.29-33
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• 2015

The brain maintains homeostasis and normal microenvironment through dynamic interactions of neurons and neuroglial cells to perform the proper information processing and normal cognitive functions. Recent post-mortem investigations and animal model studies demonstrated that the various brain areas such as cerebral cortex, hippocampus and amygdala have abnormalities in neuroglial numbers and functions in subjects with mental illnesses including schizophrenia, dementia and mood disorders like major depression and bipolar disorder. These findings highlight the putative role and involvement of neuroglial cells in mental disorders. Herein I discuss the physiological roles of neuroglial cells such as astrocytes, oligodendrocytes, and microglia in maintaining normal brain functions and their abnormalities in relation to mental disorders. Finally, all these findings could serve as a useful starting point for potential therapeutic concept and drug development to cure unnatural behaviors and abnormal cognitive functions observed in mental disorders.

• Korean Journal of Childcare and Education
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• v.9 no.6
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• pp.223-241
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• 2013

The purpose of this study was to examine the influence of teacher efficacy and stress coping strategies on job satisfaction of teachers in early childhood education and care. 189 teachers were recruited from 8 day care centers and 10 kindergartens in Seoul, Kyunggi, Kyungbuk, and Chonbuk provinces in Korea. Data were analyzed through frequencies, Pearson's correlations, and the stepwise regression analyses using PASW 18.0. The findings are as follows. First, the result showed that teachers in ECEC were most likely to be satisfied with their job characteristics most among the 4 subcategories in job satisfaction. They also perceived their the ability of discipline high for teacher efficacy, and used the direct coping strategy most as a stress coping strategy. Second, the teachers' ability to create a positive learning atmosphere affected job characteristics, the ability to participate in decision-making affected the relationship with director and colleagues, working environment, welfare and salary the most. Third, the direct coping strategy had the most impacts on all subcategories of job satisfaction. The results of this study may provide basic data for finding effective way to increase job satisfaction of teachers in ECEC.