• Title/Summary/Keyword: Mediator Effects

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The Effects of Major Selection Motivation on Career Efficacy and Major Satisfaction of College Students majoring in Culinary Art and Foodservice Management (조리외식전공 대학생의 전공선택동기가 진로효능감과 전공만족에 미치는 영향 관계)

  • Chae, Hyun-seok
    • Culinary science and hospitality research
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    • v.23 no.5
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    • pp.34-47
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    • 2017
  • This study is designed to figure out the effects of major selection motivation on career efficacy and major satisfaction of college students majoring in culinary and foodservice management. To achieve this purpose, a survey was carried out to 209 college students. The findings showed that their major selection had a significant effect on their career efficacy and major satisfaction. But the mediating effect of their career efficacy as a mediator - which improves their major selection and major satisfaction - was partially adopted. Consequently, their internal and external participation motivation for their major selection is a facilitating mechanism to maximize their major satisfaction, and it is necessary to limit the use as a mediating variable of their career efficacy.

Facile Preparation of 2-Arylbenzo[b]furan Molecules and Their Anti-inflammatory Effects

  • Hwang, Jung-Woon;Choi, Da-Hye;Jeon, Jae-Ho;Kim, Jin-Kyung;Jun, Jong-Gab
    • Bulletin of the Korean Chemical Society
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    • v.31 no.4
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    • pp.965-970
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    • 2010
  • An efficient and practical preparation of 2-arylbenzo[b]furan molecules including natural egonol, XH-14, ailanthoidol, and unnatural derivatives is demonstrated using Sonogashira coupling, iodine induced cyclization and Wittig reaction. Anti-inflammatory effects of the prepared benzo[b]furans were examined in lipopolysaccharide (LPS)-stimulated RAW 264-7 macrophages. The results showed that ailanthoidol, XH-14 and three other unnatural derivatives (9-10, 13) inhibited significantly the production of inflammatory mediator nitric oxide without showing cytotoxicity.

Ailanthoidol Derivatives and their Anti-inflammatory Effects

  • Lee, Na-Li;Lee, Jae-Jun;Kim, Jin-Kyung;Jun, Jong-Gab
    • Bulletin of the Korean Chemical Society
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    • v.33 no.6
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    • pp.1907-1912
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    • 2012
  • Ailanthoidol showed a strong $anti$-inflammatory effect in a previous result. Ailanthoidol derivatives were prepared for the $anti$-inflammatory test using Sonogashira coupling, iodine induced cyclization and Wittig reaction. $Anti$-inflammatory effects of the prepared ailanthoidol derivatives were examined in lipopolysaccharide (LPS)-stimulated RAW 264-7 macrophages. The results showed that some ailanthoidol derivatives inhibited significantly the production of inflammatory mediator nitric oxide.

Effects of Green Operations and Green Innovation on Firm's Environmental Performance

  • Chen, Rong-Huei
    • Industrial Engineering and Management Systems
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    • v.13 no.2
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    • pp.118-128
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    • 2014
  • This study examines how green operations affect firm's environmental performance with green innovation as a mediator in the context of electronic industry. We carry out an empirical study with 141 valid questionnaires collected from high-tech manaufactures in Taiwan. The results show that positive relationships exist among green operations, green innovation and environmental performance (in both operational performance and managerial performance). However, an integration of green operations with green innovation would influence firm's environmental performance more positively than the sole effects of green operations. It suggests that high-tech manufacturers should pay greater attention to green innovative strategies in order to cope with customer demand and, thereby, enhancing customer satisfaction and sustainable operations. This study has contributed to the extant literature by providing valuable academic references and pragmatic guidelines for firms to gain competitive advantages through green operations and green innovation.

Path analysis of the suicidal ideation of Korean adults

  • Yoon, Chae-Min;An, Hye-Gyung
    • International Journal of Advanced Culture Technology
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    • v.7 no.1
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    • pp.103-111
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    • 2019
  • This study attempted to test the path model that can predict Korean adult suicidal ideation. The subjects were 459 adults aged between 19 and 64 who agreed to this study among quota sampled by the population, sex, and region of the metropolitan city. The path model of collected data was estimated using SPSS 24.0 program and AMOS 22.0. The results of the bias-corrected percentile method for verifying the significance of the mediator effect of the final model showed that suicidal attitude, depression, and stress were found to be mediating effects of health status on suicidal ideation. Suicide attitude and stress were found to mediate the effects of health status on depression. And the effect of drinking on depression was mediated by stress. This result is expected to be used as a practical basis for the development of suicide prevention and intervention programs for adults in the future.

The mediating effect of self-esteem on the relationship between mothers' parenting behavior, emotional expression and the creative personality of children (어머니의 양육행동 및 정서표현과 유아의 창의적 인성 간의 관계에서 자아존중감의 매개효과)

  • Nam, Yun-Ju
    • Korean journal of child psychotherapy
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    • v.12 no.2
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    • pp.27-42
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    • 2017
  • This study examined the mediating effects of self-esteem on the mothers' parenting behavior, emotional expression and the creative personality of the children. A survey was conducted in Kwang ju and Chonnam of 259 mothers with children from 3-5 years old. Based on the data, Pearson's correlations between variables were analyzed, and hierarchical regression analyses were conducted to identify the direct and indirect effects of the mothers' parenting behavior, emotional expression and self-esteem on the creative personality of the children. The study found significant correlations among all four variables studied. In particular, self-esteem acted as a partial mediator in the relationship between the mothers' parenting behavior, emotional expression and creative personality of the children. The results suggest that increasing self-esteem in mothers may edify the creative personality in their children.

Resolvin D5, a Lipid Mediator, Inhibits Production of Interleukin-6 and CCL5 Via the ERK-NF-κB Signaling Pathway in Lipopolysaccharide-Stimulated THP-1 Cells

  • Chun, Hyun-Woo;Lee, Jintak;Pham, Thu-Huyen;Lee, Jiyon;Yoon, Jae-Hwan;Lee, Jin;Oh, Deok-Kun;Oh, Jaewook;Yoon, Do-Young
    • Journal of Microbiology and Biotechnology
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    • v.30 no.1
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    • pp.85-92
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    • 2020
  • One of the omega-3 essential fatty acids, docosahexaenoic acid (DHA), is a significant constituent of the cell membrane and the precursor of several potent lipid mediators. These mediators are considered to be important in preventing or treating several diseases. Resolvin D5, an oxidized lipid mediator derived from DHA, has been known to exert anti-inflammatory effects. However, the detailed mechanism underlying these effects has not yet been elucidated in human monocytic THP-1 cells. In the present study, we investigated the effects of resolvin D5 on inflammation-related signaling pathways, including the extracellular signal-regulated kinase (ERK)-nuclear factor (NF)-κB signaling pathway. Resolvin D5 downregulated the production of interleukin (IL)-6 and chemokine (C-C motif) ligand 5 (CCL5). Additionally, these inhibitory effects were found to be modulated by mitogen-activated protein kinase (MAPK) and NF-κB in lipopolysaccharide (LPS)-treated THP-1 cells. Resolvin D5 inhibited the LPS-stimulated phosphorylation of ERK and translocation of p65 and p50 into the nucleus, resulting in the inhibition of IL-6 and CCL5 production. These results revealed that resolvin D5 exerts anti-inflammatory effects in LPS-treated THP-1 cells by regulating the phosphorylation of ERK and nuclear translocation of NF-κB.

The Relationship between Stress and Suicidal Ideation for Old Adult Living Alone -Multiple Mediator Effects of Self-criticism and Feelings of Loneliness, and the Moderating Effects of Social Support- (독거노인의 스트레스와 자살생각 간의 관계 -자기비판, 고독감의 다중매개효과와 사회적 지지의 조절효과-)

  • Park, Bonggil;Song, Inseok
    • Korean Journal of Social Welfare
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    • v.66 no.2
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    • pp.51-74
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    • 2014
  • This study aimed to examine a multiple mediator model in which stresses affect self-criticism. The self-criticism, in turn seemed to affect the feelings of loneliness, and this had an effect on over 65 years living alone. Furthermore, whether social support had any moderating effects in the pathway from the loneliness to suicidal ideation on our pass model were also investigated. Data were collected from 572 samples of persons 65 years of age and older living alone in Seoul. For the analyses of the mediating effects and moderating effects, structural equation modeling was used. The results were as follows. First, the pass model was identified to fit the observed data. This mean that self-criticism increased as stress rises, the increased levels of self-criticism increased loneliness, and the increased levels of loneliness increased the levels of suicidal ideation. Second, social support moderated the relation between loneliness and suicidal ideation on our model. These results suggested that interventions which deal with loneliness and suicidal ideation were needed, in order to reduce suicidal ideation caused by the stress. These imply, additionally, that when social workers try to reduce the suicidal ideation, they should consider the levels of social support at work as influences.

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Effects of Relational and Mandatory Influence Strategies on Sales Representatives and Headquarter Trust (관계적과 강제적 영향전략이 본사 신뢰에 미치는 영향 : 영업사원 신뢰의 매개역할)

  • Lee, Chang-Ju;Lee, Phil-Soo;Lee, Yong-Ki
    • Journal of Distribution Science
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    • v.14 no.6
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    • pp.53-63
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    • 2016
  • Purpose - This study examines the effects of the influence strategies on sales representative and headquarter trust, and investigates how sales representative trust plays a mediating role in the relationship between influence strategies and headquarter trust. For these purposes, a structural model which consists of several constructs was developed. In this model, influence strategies that consist of relational influence strategies (information exchange, recommend, promise) and mandatory influence strategies (legal plea, request, threat) were proposed to affect the sales representative trust and in turn, increase the headquarter trust. Thus, this study proposed that sale representative trust plays a core mediating role in the relationship between relational and mandatory influence strategies and headquarter trust in B2B food materials distribution context. Research design, data, and methodology - For these purposes, the authors collected the data from 208 B2B specialized complex agents. We used the 2,200 B2B specialized complex agents which trade with CJ, Ottogi, and Daesang firms and supply food materials to restaurant, school cafeteria, supermarket and traditional market as a sample frame. Once we identified 330 B2B specialized complex agent owners, CEOs, and/or Directors who had agreed to participate in this study, we dropped off a questionnaire at each B2B specialized complex agent and explained the purpose of this study. The survey was conducted from October 1, 2015 to December 15, 2015. A total of 230 questionnaires were collected. Of these collected questionnaires, 28 questionnaires excluded since they had not been fully completed. The data were analyzed using frequency test, reliability test, measurement model analysis, and structural equation modeling with SPSS and SmartPLS 2. Results - First, information exchange, recommendation, and promise of relational influence strategies had positive effects on sales representative trust. The threat of mandatory influence strategies had a negative effect on sales representative trust, but legal plea and request did not have a significant effect on sales representative trust. Second, information exchange and recommendation of relational influence strategies had positive effects on headquarter trust, but promise did not. Also, legal plea, request, and threat of mandatory influence strategies did not have a significant effect on headquarter trust. Third, this findings show that sales representative trust plays a partial mediator between information exchange and headquarter trust, and threat and headquarter trust, and a full mediator between promise and headquarter trust, and recommendation and headquarter trust. Conclusions - The aim of this study was to examine the effects how diverse dimensions of relational and mandatory influence strategies relate to sales representative trust and headquarter trust. To do so, we integrated the influence strategies and the trust transfer theory to hypothesize that various influence strategies increase sales representative and headquarter trust. The findings of this study suggest that headquarter firms should establish and enforce proper influence strategies guidelines to make clear what proper actions sales representatives should implement in relationship with B2B specialized complex agents. Also, relational and mandatory influence strategies must be regarded as a long-term and ongoing strategy that eventually build a long-term orientation with B2B specialized complex agents and guarantee a company's sustainable growth and success.

Effects of Harm Avoidance Temperament and Novelty Seeking Temperament on School Adjustment in Middle School Students: Mediating Effects of Emotional Regulation (자극 추구 기질과 위험회피 기질이 중학생의 학교생활 적응에 미치는 영향 : 정서조절 능력의 매개효과를 중심으로)

  • Choi, Ara;Lee, Sook
    • The Korean Journal of Community Living Science
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    • v.28 no.2
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    • pp.273-287
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    • 2017
  • This study was conducted to explore the effects of novelty seeking temperament and harm avoidance temperament on school adjustment in middle school students and to investigate the mediating effects of emotional regulation on the relationship between temperament and school adjustment. A survey was conducted on a random sample of 672 middle school students. Data were analyzed using PASW ver. 18.0 and AMOS ver. 18.0 to carry out descriptive statistics, correlation analysis, and the structural equation model. The main results of analysis could be summarized as follows. First, novelty seeking temperament and harm avoidance temperament had a negative influence upon school adjustment in middle school students. Second, emotional regulation had a positive influence upon school adjustment in middle school students. Third, temperament acted as a partial mediator for emotional regulation affecting school adjustment in middle school students. The study contributes to the literature by providing fundamental insights into school adjustment in middle school students.