• Journal of Korea Trade
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• v.27 no.5
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• pp.63-90
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• 2023

Purpose - This study aims to identify the relationship between logistics companies' Logistics 4.0 technology adoption with logistics innovation capability and logistics performance, and analyze the mediating effect of logistics innovation capability and the mediated moderation effect of firm size through logistics innovation capability. Design/methodology - Research models and hypotheses were established based on prior research related to Industry 4.0, Logistics 4.0, logistics technology, logistics performance, and firm size. The survey was conducted on the employees of logistics companies, and exploratory factor analysis, reliability analysis, confirmatory factor analysis, discriminant validity analysis, structural equation model analysis, mediation effect, moderation effect, and the mediated moderation effect analysis were performed. Findings - The adoption of Logistics 4.0 technology was found to significantly affect logistics innovation capability and logistics performance. Logistics innovation capability was found to significantly affect logistics performance. Moreover, logistics innovation capability was found to have a significant mediation effect on the relationship between Logistics 4.0 technology adoption and logistics performance. The moderation effect based on firm size was found to have a partial effect on logistics innovation capability and logistics performance, but the mediated moderation effect was not significant. Originality/value - This study is meaningful in that it empirically analyzed the relationship of Logistics 4.0 technology adoption with logistics innovation capability and logistics performance, the mediating effect of logistics innovation capability, the moderation effect of firm size, and the mediated moderation effect of firm size, which were not addressed in previous studies.

• Journal of the Korean Society of Costume
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• v.51 no.8
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• pp.77-91
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• 2001

The purpose of this study was to investigate the effects of the perceived facial attractiveness and appropriateness of clothing on the evaluation of task performance of target person mediated by subjects'likability toward and trait evaluation of the target person. The facial attractiveness of the female university students were used as index of physical attractiveness in this study. Three levels of facial attractiveness was manipulated based on the judgements by 30 female university students. Four types of clothes were selected perceived appropriate for two assumed situations by female university students. Three female faces having high. medium, and low attractiveness were simulated with the same body dressed four types of clothing respectively using CAD system, and a total of 12 stimulus persons were created. The design for the experiment was a $3\tiems4\times2$ randomaized factorial. with three levels of facial attractiveness(high, medium, low), and four types attire(formal-masculine, formal-feminine, casual-masculine, casual-feminine), two kinds of context (job interview, dating) in which perceptions were occurred. The subjects of this study was 524 male and female(262 of male, 262 of female) university students from 3 universities in Kwangju, Korea. The data were analysed using factor analysis. descriptive statistics, regression, path analysis. The results were as follows : 1. In bogus job interview. the direct effect of perceived facial attractiveness on task performance evaluation was .175 and the indirect effect mediated by likability and trait evaluation was .285 in path analysis model. The direct effect of perceived appropriateness of clothing on task performance evaluation was .111 and the indirect effect mediated by likability only was .0564 in pass analysis model. 2. In dating situation, the direct effect of perceived facial attractiveness on task performance evaluation was .355, the indirect effect mediated by likability and trait evaluation was .188 in path analysis model. The direct effect of perceived appropriateness of clothing on task performance evaluation was .108, the indirect effect mediated by likability and trait evaluation was .060 in Pass analysis.

• YAKHAK HOEJI
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• v.29 no.2
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• pp.55-61
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• 1985

The effect of dietary fat on the immunotoxicity of chloramphenicol was investigated in mice, sensitized and challenged with sheep red blood cells. Chloramphenicol suppressed more cell-mediated immunity than humoral immunity. The saturated fat diet elevated humoral and cell-mediated immunotoxicity, whereas the unsaturated fat diet decreased humoral immunotoxicity, but elevated cell-mediated immunotoxicity of chloramphenicol. Especially, the normal diet in saturated and unsaturated fat restored immunosuppressive effect of chloramphenicol compared to the saturated fat diet and the unsaturated fat diet.

• The Journal of the Korea Contents Association
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• v.16 no.7
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• pp.100-111
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• 2016

This study analyzes targeting 584 senior citizens aged 65 and over in Gyeongsangnam-do to verify a mediated control effect of optimism and family support in stress and successful aging of the aged. Using SPSS Macro Way suggested by Preacher and Hayes. A study model is verified through a route model, and the verification of the study model is conducted in three stages. The first stage analyzes whether a control variable has a control effect in a relationship between predictor variable and standard variable, and the second stage confirms a relationship between predictor variable and mediated variable. In addition, the third stage confirms a mediated control effect. An analytical result is summarized as follows. First, as a result to verify a mediated effect between stress and successful aging, and optimism, it is confirmed that it supports a partially-mediated model. Second, as a result to verify a control effect of optimism and family support of successful aging, it is confirmed that everything has a control effect. Third, as a result to verify a mediated control effect of stress, optimism, successful aging, and family support, there is a mediated control effect. Based on these study results, practical undertone and future task are suggested, and a way to improve family support is presented for successful aging in advanced age.

• Culinary science and hospitality research
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• v.13 no.2
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• pp.12-21
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• 2007

The purpose of this study was to examine the effect of subjective norms on customers' intention to engage in voice of dissatisfaction responses, the effect of subjective norms on attitude, and the mediating effect of attitude on the relationships between subjective norms and customers' intention to engage in voice of dissatisfaction responses. The simple regression analysis is used in order to estimate the effects of subjective norms on customers' intention to engage in voice of dissatisfaction responses and attitude. The mediated regression analysis is used in order to estimate the mediating role of attitude of the effect of subjective norms on customers' intention to engage in voice of dissatisfaction responses. Results of the study demonstrated that the inclusion of perceived behavioral control did significantly improve the predictability of the voice of dissatisfaction response intentions. Furthermore, the mediating analysis indicated that the influence of subjective norms was mediated by mediator. In the contests of voice behavior, the effect of subjective norms on intention was mediated by attitude.

• The Journal of the Korea Contents Association
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• v.20 no.11
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• pp.569-580
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• 2020

The purpose of this study is empirically to analyze the mediated effects of job stress on the influence of positive psychological capital of care workers' enthusiasm. The research method was self_report questionnaire was completed by 383 careworkers at care homes for the elderly in the Seoul metropolitan area between December 10th, 2018 to January 11th, 2019. and date analyzed using the IBM AMOS 22.0 program. As a result, First, positive psychology capital has been shown to have a negative effect on job stress. Second, positive psychology capital has been shown to have a positive effect on the enthusiasm of care workers. Third, job stress has been shown to have a negative effect on the enthusiasm of care workers. Fourth, in the relationship between positive psychology capital and care worker's enthusiasm, job stress revealed that it had a partial mediated effect. This means that positive psychological capital of the care workers has a negative effect on job stress, and the job stress, which has been negatively effected by positive psychological capital, has a positive mediated effect on the enthusiasm of the worker.

• Korean Journal of Childcare and Education
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• v.17 no.4
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• pp.73-91
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• 2021

Objective: This study focused on the relationships between emotionality, social competence and play behavior in a sample of 218 4- to 5-year olds attending daycare centers. Methods: All variables were measured by the daycare teachers of the surveyed children. The data were analyzed using Simple Regression and Multiple Regression through SPSS Win 25.0. Results: First, preschoolers' positive emotionality had a negative effect on their play disruption and play disconnection and a positive effect on play interaction. On the other hand, their negative emotionality had a positive effect on play disruption and play disconnection and a negative effect on play interaction. Second, their positive emotionality had a positive influence on social competence and their negative emotionality had a negative influence. Finally, the effect of their positive emotionality on play disruption was partially mediated, and their play disconnection and play interaction was totally mediated by social competence. On the other hand, the effect of preschoolers' negative emotionality on play disruption and play disconnection was totally mediated, and their play interaction was partially mediated by social competence. Conclusion/Implications: The results of this study imply that we need to help preschoolers promote emotionality and social competence together to change their play behavior positively.

• IMMUNE NETWORK
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• v.5 no.3
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• pp.144-149
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• 2005

Background: Fc receptor-mediated phagocytosis is a complex process involving the activation of kinases and phosphatases. FcgammaRIIB has been known to transduces inhibitory signals through an immunoreceptor tyrosine-based inhibitory motif (ITIM) in cytoplasmic domains. In this study, we examined the involvement of inositol-phosphatase in the Fc receptor-mediated phagocytosis. Methods: J774 cells were infected using vaccinia viral vector containing SH2 domain-containing inositol-phosphatase (SHIP) cDNA and stimulated with the sensitized sheep red blood cells. Results: Stimulation of J774 cells induced the tyrosine phosphorylation of SHIP which was maximal at 5 minutes. Phosphatidylinositol-3 (PI-3) kinase inhibitor (wortmannin) inhibits J774 cell phagocytosis of sensitized sheep red blood cells in a dose-dependent manner. Heterologious expression of SHIP in J774 cells inhibits phagocytosis of sensitized sheep red blood cells in a dose-dependency manner, but catalytically dead mutants of SHIP has no effect on phagocytosis. Conclusion: These results strongly suggest that the active signals mediated by PI-3 kinase are opposed by inhibitory signals through SHIP in the regulation of Fc receptor-mediated phagocytosis.

• The Journal of Korean Medicine
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• v.23 no.2
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• pp.57-69
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• 2002

Objective: The aim of this study is to investigate the effect of Injin butanol fractions with Thin Layer Chromatography on Fas-mediated Apoptosis. Method: Injin-butanol fraction separated by TLC. MIT assay, cell cycle analysis, Caspase-3 protease assay, DNA fragmentation assay and quantitative RT-PCR were performed to evaluate the effects of TLC extraction of lnjin-butanol fraction on cell viability, cell cycle progression and apoptosis. Results: Scopoletin, luteolin, apigenin and unknown powder was isolated by TLC. Fas-mediated apoptosis analysis shows that scopoletin has inhibiting function on apoptosis. Caspase- 3 protease assay analysis shows that scopoletin inhibits activity of caspase-3. Quantitative RT-PCR analysis shows that no activity on caspase-3, but apoptosis inhibition cytokine -Bcl-2- is activated, and apoptosis activating cytokine -Bax- is unactivated. Conclusion: These results show that each fraction of Injin-butanol TLC extraction, especially scopoletin, acts as a protective function on liver cell viability, and inhibitory function on apoptosis. (J Korean Oriental Moo 2002;23(2):57-69)

• Korean Journal of Child Studies
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• v.37 no.4
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• pp.101-115
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• 2016

Objective: The study examined the mediated-moderation effect of social-support levels from maternal-acceptance experiences by the parents of origin to child emotion regulation strategies through an emotion-coaching reaction. Methods: The participants in this study were children (Grades 4-6) and their mothers. They completed questionnaires on Maternal Parenting Experiences Scale, Children's Emotion Regulation Scale, Emotion-Coaching Scale, and Social Supportive Level Scale. Data were analyzed via SEM. Results: The main findings were as follows. First, a mediating model showed that the relationship between maternal-acceptance experiences by the parents of origin and child emotion-regulation strategies was mediated by emotion-coaching reactions. Second, there was a moderation effect of social-supportive levels on the relationship between maternal-acceptance experiences from parents of origin and emotion-coaching reaction. Finally, social-supportive levels mediated the moderation effect of social-support level from maternal-acceptance experiences to child emotion-regulation strategies through emotion-coaching reaction. Conclusion: These results indicate that importance of maternal social-supportive level from owns spouse or friends. I discussed the implications of the intervention of parent counseling and parent education in this research.