• 대한공업교육학회지
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• v.34 no.2
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• pp.304-320
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• 2009

This study was performed to grasp relations between different sub-factors of youths' leadership living skills and between the sub-factors of youths' leadership living skills and personal features (support by parents, support by peers, sense of self-respect, sense of self-effectiveness) in order to generally understand the characteristics of youths. The result and conclusion of this study are as follows. First, the sub-factors of youths' leadership living skills showed various kinds of correlations and especially, measures to improve learning ability skill, self-understanding skill and group activity skill are necessary for healthy and general growth in adolescence. Second, the sense of self-respect showed positive correlations with decision making skill and self-understanding skill and programs are to improve leadership living skill gradually and positively through the enhancement of the sense of self-respect. Third, the degree of support by peers showed relations with decision making skill and group activity skill meaning the importance of peer groups in adolescence and diverse measures to form peer groups are necessary.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.394-402
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• 2018

Recently, the domestic food service industry has grown in quantity and quality. Among them, the foodservice market in the group has grown to become infinitely competitive as well as the growth, and the role of the dietitian has been diversified. The professional self-concept refers to the feeling of self-own work as a professional person and his or her opinion, and the professional worker with a positive professional self-concept improves his / her ability to perform his or her job. The purpose of this study is to analyze the effect of dietitian's professional self-concept on job satisfaction and customer orientation. Among the subordinate factors of professional self-concept, leadership, usability, technology, and communication showed that technology and communication had a significant effect on job satisfaction. The results of this study are as follows. First, the effect of technology was found to be significant. Customer orientation is significantly influenced by communication and technology. In other words, the attitude of trying to satisfy the needs and desires of the customers as a nutritionist was found to be higher when the self-evaluating ability of the customer or other people is high.

• Journal of the Korean Recycled Construction Resources Institute
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• v.9 no.3
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• pp.367-374
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• 2021

In this study, the applicability of mechanochemical process for the manufacture of self-healing admixtures and the effect of mechanochemical process on the self-healing performance were evaluated. The self-healing admixtures were adopted as a highly reactive materials(expansive agent, swelling material and crystal growth agent) for mechanochemical processes. The self-healing admixtures for the mechanochemical process application were evaluated by X-Ray Diffraction and Fourier Transform Infrared Spectroscopy analysis, water permeability performance was used to evaluate self-healing performance of mortar. As a result of the evaluation, the self-healing performance of the WM(With-Mortar)3 sample to which mechanochemical process increased by 4.1% compared to the WM1 sample that was not treated, and the average healing index was 94.3%.

• The Journal of the Korea Contents Association
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• v.21 no.6
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• pp.261-273
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• 2021

This study analyzed the model by using the data of 416 counselors working in the counseling field to verify the moderated mediation effect of burnout on life satisfaction, through counselors' self-care in the process of counselors' stress. First, counselors' stress had an effect on life satisfaction through burnout. Second, the interaction effect between counselors' stress and self-care was significant and the relationship between stress and burnout was changed according to the level of self-care. Third, counselors' stress was found to be controlled by self-care, which has a mediating effect on life satisfaction through burnout. The results of this study are meaningful in that it provides an empirical basis for self-care factors that can contribute to the improvement of the counselor's personal and professional growth and quality of life through the verification of the effect of self-care that improves the satisfaction of life by preventing and alleviating the stress and burnout of the counselors.

• Journal of dental hygiene science
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• v.21 no.2
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• pp.86-95
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• 2021

Background: This study aimed to investigate the effects of department satisfaction and career maturity on the perceived health status, relationship, and self-efficacy of dental hygiene college students based on Alderfer's existence-relationship-growth theory. Methods: We obtained convenience samples of dental hygiene students in Daejeon and Chungnam areas; 241 questionnaires were collected from 250 persons considering the dropout rate and used for the final analysis except for 9 careless responses. The differences in perceived health status, relationship, self-efficacy, department satisfaction, and career maturity according to general characteristics were analyzed using a t-test, one-way analysis of variance and Pearson's correlation coefficients. Moreover, structural equation modeling was performed to confirm the variables. GFI, AGFI,CFI, RMR, RMSEA, TLI, and NFI indices were calculated to verify the fitness of the path model. Results: There were significant differences in self-efficacy, department satisfaction, career maturity according to grade, and significant differences in academic performance for all variables except relationship. The school system also had a significant effect on department satisfaction. Perceived health status, relationship, self-efficacy, department satisfaction, and career maturity demonstrated statistically significant positive correlations (p<0.05). The factors affecting department satisfaction were relationship and self-efficacy. The indirect and total effects of perceived health status and relationship on career maturity were not statistically significant; however, the indirect and total effects of self-efficacy on career maturity were statistically significant. Conclusion: It is necessary to develop teaching methods according to student management plans for dental hygiene by comprehensively perceived health status, relationship, and self-efficacy affecting department satisfaction and career maturity.

• Journal of Animal Science and Technology
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• v.65 no.1
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• pp.16-31
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• 2023

Cultured meat is a potential sustainable food generated by the in vitro myogenesis of muscle satellite (stem) cells (MSCs). The self-renewal and differentiation properties of MSCs are of primary interest for cultured meat production. MSC proliferation and differentiation are influenced by a variety of growth factors such as insulin-like growth factors (IGF-1 and IGF-2), transforming growth factor beta (TGF-β), fibroblast growth factors (FGF-2 and FGF-21), platelet-derived growth factor (PDGF) and hepatocyte growth factor (HGF) and by hormones like insulin, testosterone, glucocorticoids, and thyroid hormones. In this review, we investigated the roles of growth factors and hormones during cultured meat production because these factors provide signals for MSC growth and structural stability. The aim of this article is to provide the important idea about different growth factors such as FGF (enhance the cell proliferation and differentiation), IGF-1 (increase the number of myoblasts), PDGF (myoblast proliferation), TGF-β1 (muscle repair) and hormones such as insulin (cell survival and growth), testosterone (muscle fiber size), dexamethasone (myoblast proliferation and differentiation), and thyroid hormones (amount and diameter of muscle fibers and determine the usual pattern of fiber distributions) as media components during myogenesis for cultured meat production.

• Journal of the Korean Geographical Society
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• v.24
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• pp.79-87
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• 1981

South Korea's 'Green Revolution', which is considered to be one of Asia's most successful programs of integrated rural development, has achieved two main objectives: (1) bringing the country closer to self-sufficiency and (2) narrowing the income gap between rural and ruban incomes and thus allowing agriculture to participate in the nation's economic growth.

• Bulletin of the Korean Chemical Society
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• v.32 no.4
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• pp.1395-1398
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• 2011

• Proceedings of the Materials Research Society of Korea Conference
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• 2007.11a
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• pp.70.1-70.1
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• 2007

• Proceedings of the Materials Research Society of Korea Conference
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• 2007.11a
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• pp.72.1-72.1
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• 2007