• Journal of Korean Academy of Nursing
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• v.54 no.3
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• pp.403-417
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• 2024

Purpose: The aim of this study was to identify the double mediating effect of effect of diversity sensitivity orientation and positive nursing organizational culture between diversity management and organizational commitment. Methods: Participants were 245 nurses working in six tertiary hospitals located in 3 different regions. Data collection was conducted from February 13, 2023 to March 6, 2023 through online self-reported questionnaire. The data were analyzed by IBM SPSS Statistics 27 and SPSS PROCESS Macro 4.2 program. Results: The direct effect of diversity management on organizational commitment was significant (β = .21, p < .001). The indirect effect of diversity management on organization commitment was .34 (95% confidence interval [CI] = .23~.47). The double mediating effect of diversity sensitivity orientation and positive nursing organizational culture in the relationship between diversity management and organizational commitment was .02 (95% CI = .00~.05). Conclusion: Diversity sensitivity orientation and positive nursing organizational culture show double mediating effect on the relationship between diversity management and organizational commitment. Education program and human resource management strategy for enhancing diversity management, diversity sensitivity orientation and positive nursing organizational culture should be provided to improve organizational commitment, and which are needed active support of the association and nursing organization.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.33 no.3
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• pp.153-158
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• 2020

In this study, a numerical approach for evaluating the resisting capacity of a partial concrete-filled steel tube (CFST) column is introduced. By strengthening the plastic hinge part of a traditional reinforced concrete column with a steel tube, a partial CFST shows a similar bending moment capacity as that of a full CFST column but with reduced material cost. To conduct an elaborate numerical analysis of a partial CFST column, an improved bond-slip model is applied to a finite element (FE) model at the interface between the steel tube and in-filled concrete. This numerical model is verified through the results of a double curvature bending-compression test. A parametric study with the proposed numerical model is used to obtain the load moment interaction diagrams for evaluating the resisting capacity based on various dimensions. Finally, the required strengthening length is estimated for each degree of thickness of the steel tube, and the failure mechanism of the partial CFST column based on the dimensions of the steel tube are identified.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.453-461
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• 2022

This study designed a research model to analyze the relationship between organizational commitment and work performance for outsourcing workers. The path relationship was analyzed using the PLS-SEM of the sample collected through the survey. As a result of the study, organizational support perception had a direct effect on the work performance of outsourcing workers, and the company commitment and customer company commitment had a mediating effect. In addition, it was confirmed that the workers showed dual commitment to the company and the customer company, and the organizational commitment to both companies was complementary. It was also suggested that the outsourcing company's organizational support activities are more important for improving the work performance of workers.

• Korean Journal of Child Studies
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• v.38 no.2
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• pp.51-66
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• 2017

Objective: This study aimed to examine the dual mediating effects of preschoolers' emotional temperament and emotion regulation in the relationship between maternal emotional expression and preschoolers' behavior problems. Methods: The participants included 167 preschoolers and their mothers from Daegu city and Gyeonsang province. The mothers completed questionnaires regarding their own emotional expression, children's temperament, emotion regulation, and behavior problems. Results: The primary results of this study were as follows. First, there were significant correlations among maternal emotional expression, preschoolers' emotional temperament, emotion regulation, and problem behaviors. Second, maternal emotional expression had an indirect effect on preschoolers' behavior problems through preschoolers' emotional temperament and emotion regulation. Conclusion: This study revealed that maternal negative emotional expression and preschoolers' temperament and emotion regulation need to be considered simultaneously to explain the level of preschoolers' behavior problems. More specifically, the results highlight the dual mediating effects of preschoolers' temperament and emotion regulation in the relationship between maternal negative emotional expression and preschoolers' behavior problems.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.3
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• pp.701-712
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• 2016

The purpose of this study was to investigate the effect of democratic and autocratic behavior type of dance art instructors in elementary dance education on class satisfaction focused on mediations of flow and perceived competence. A total of 500 questionnaires were distributed but insincerely replied or double-replied questionnaires were excluded and finally 453 questionnaires were analyzed for this study. For the analysis of the data, SPSS 18.0 version was used and double mediation model operating in serial, proposed by Hayes and a bootstrapping method were used. First, instructor's democratic behavior type was statistically positive effect on class satisfaction. However autocratic behavior type was statistically negative effect. Second, the indirect effect of instructor's democratic type and autocratic behavior type on class satisfaction through the flow were statistically positive significant. Third, the indirect effect of instructor's democratic behavior type on class satisfaction through the perceived competence was statistically significant. However autocratic behavior type was statistically negative effect. Lastly, the indirect effect of instructor's democratic and autocratic behavior types on class satisfaction through the flow and perceived competence were statistically positive significant.

• Journal of Fisheries and Marine Sciences Education
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• v.26 no.3
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• pp.553-566
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• 2014

The purpose of this study was to analyze the effect of ski class satisfaction on re-participation of ski focused on double mediations of professor and education images. The results of this study were summarized in the following. Firstly, the satisfaction of ski class was statistically positive effect on re-participation of ski. Second, the indirect effect of the satisfaction of ski on re-participation of ski through the image of professor was statistically positive significant. Third, the indirect effect of the satisfaction of ski on re-participation of ski through the education image was statistically insignificant. Lastly, the indirect effect of the satisfaction of ski on re-participation of ski through the image of professor and education image was statistically insignificant. This result indicated that there was no the relationship of satisfaction of ski and re-participation through the double mediations which were professor and education images.

• Journal of Korean Academy of Nursing
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• v.53 no.6
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• pp.622-634
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• 2023

Purpose: This study aimed to identify the mediating effects of career motivation and job-esteem and the effect of the nursing work environment on intention to stay among hospital nurses. Methods: Data were collected from 289 nurses working at an advanced general hospital. The research model design was based on the PROCESS macro proposed by Hayes and analyzed using SPSS 24.0 program. Results: The results showed a positive correlation between intention to stay and nursing work environment (r = .19, p = .001), career motivation (r = .34, p < .001), and job-esteem (r = .37, p < .001). Nursing work environment (B = 0.34 [.09~.59]) and job-esteem (B = 0.27 [.04~.49]) had a direct effect on intention to stay. There was a two-mediator sereal mediation effect of career motivation and job-esteem. The nursing work environment showed a significant effect on the intention to stay among hospital nurses through career motivation and job-esteem. Conclusion: In order to increase the retention rate of hospital nurses, it is suggested that government and medical institutions provide multifaceted support that can increase nurses' motivation for career development and recognition of the nursing profession through improvement of the nursing work environment.

• Human Ecology Research
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• v.62 no.3
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• pp.427-439
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• 2024

The purpose of this study was to analyze the financial portfolios of single-person households. For the analysis, The purpose of this study is to verify the mediation effect of stress-coping strategies in the relationship between ego-resiliency and burn-out among childcare center teachers. The subjects were 255 childcare center teachers in Gyeongbuk Province. The measurement tools used for this study include ego-resiliency, burn-out, and stresscoping strategy questionnaires. The collected data points were analyzed via Structural Equation Modeling(SEM), Bootstrapping, Pearson Correlation, using SPSS 21.0 and AMOS 20.0 The results of the study analyzing the Structural Equation Model are as follows. First, teachers' ego-resiliency had a negative influence on burn-out. Second, teachers' problem-focused coping strategies had a negative influence on burn-out, while emotionfocused coping strategies had a positive influence on burn-out. Third, teachers' ego-resiliency had a positive influence on both problem-focused and emotion-focused coping strategies. Fourth, teachers' ego-resiliency had an indirect effect on burn-out by improving both problem-focused and emotion-focused coping strategies. This study suggests that education on the use of problem-focused coping strategies in stressful situations is necessary to successfully manage childcare teachers' burn-out in childcare settings in which mandatory evaluation systems are newly implemented.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.137-141
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• 2007

우리나라는 지역적 특성상 여름철에 강수량이 편중되어 있어 계절별로 하천유량의 편차가 매우 크게 나타나고 있다. 또한 계속되는 도시화와 산업화로 인하여 하천에서 다양한 형태의 취수와 이용이 이루어지고, 국민들의 수질향상 등에 대한 기대가 커짐에 따라 하천유량에 대한 양적 질적 요구가 증대되고 있다. 이에 효율적인 수자원운영을 위하여 다양한 형태의 수자원확보가 이루어지고 있으며, 이중 가장 대표적인 댐을 이용하여 운영에 따른 하류 하천에서의 유황개선효과에 대해서 유역 장기분포모의 모형 중 하나인 SWAT모형을 밀양강유역에 적용하여 일 유출량 모의를 수행하였다. 모형의 구축은 $2000{\sim}2005$년의 밀양강유역 기상자료를 활용하였으며, 건교부에서 운영하는 Wamis를 이용하여 DEM, 토지이용도, 토양도를 취득하였다. 또한 밀양댐, 운문댐 유입량과 밀양2지점의 측정유량을 이용하여, SWAT의 다양한 매개변수 중 SOL_AWC, ESCO, CH_K등을 수정하여 Calibration을 실시하였으며, 밀양강유역 오염총량지점인 밀양A지점과 밀양B지점의 측정유량을 이용하여 Validation을 실시하였다. 그 결과, 댐의 경우 0.9이상의 선형상관관계를 나타내었으며, 오염총량지점의 경우 0.6이상의 선형상관관계를 나타내어 모형의 적용성이 양호함을 알 수 있었다. 과거 39년간의 강수량자료를 이용, 구축된 모형의 유역모의운영을 통해 밀양강 유역의 밀양댐과 운문댐이 있음으로 해서, 댐이 없는 경우와 비교, 하류 지점별 유황개선에 어느 정도 효과가 있는지 댐의 순기능에 대한 정량적인 분석을 수행하였다. 또한 댐별 방류량을 변동하여 하류 주요지점에 미치는 유황개선효과를 정량화하였다. 마지막으로 댐의 효율을 최대화한 하류확보가능하천유지유량을 월별평균량으로 산정하였다. 이는 향후 오염총량제 기준유량 및 환경용수의 법제화를 통한 하천유지용수의 증가시 비구조적 대책의 공급가능 최대량으로 활용가능할 것으로 사료된다.

• Korean Journal of Plant Resources
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• v.25 no.5
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• pp.561-567
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• 2012

Ellagic acid (EA) is a phenolic compound in fruits and nuts including raspberries, strawberries, grapes and walnuts. Previous studies have indicated that EA possesses antioxidant activity, growth-inhibition and apoptosis-promoting activity in cancer cells. However, macrophage mediated cytotoxicity and immunomodulating effects on cancer cells have not been clarified. In the present study, we show that EA increased effects on macrophage mediated tumoricidal activity and NO production without direct tumor cell cytotoxicity. To further determine whether TLR4 (toll like receptor 4) is involved in anti-tumor activity, cells were treated TLR4 signaling inhibitor, CLI-095 in the presence of EA. CLI-095 treatment partially reduced macrophage-mediated tumoridial activity. EA also has inhibitory effects of NO production induced by LPS, whereas phagocytic activity was not changed. These results suggest that EA induces macrophage mediated tumoricidal activity which is partially related to TLR4 signaling and has a potential adjuvant in cancer therapy.