• Title/Summary/Keyword: Mediating role

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The Mediating Effects on Relationship Quality Between Support Services of Franchisor and Re-Contract Intention in Food Service Franchise (외식 프랜차이즈 가맹본부 지원서비스와 재계약 의도 간의 관계품질의 매개효과에 관한 연구)

  • Lee, Sang Suk
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.3
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    • pp.141-151
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    • 2019
  • This paper aims to investigate the moderating effects of relationship quality between support services of food service franchisor and performance(re-contract intention) in food service franchise. For analyzing the relationship of them, the support services of food service franchisor categorized with initial service and continuous service. Also, the factors of relationship quality(satisfaction, trust, commitment) classified into detailed subfactor by confirmatory factor analysis. As a result, we found some statistically significant effects between the support services of food service franchisor and factors of relationship quality, and they sequentially affects to re-contract intention. Also, it's analyzed that factors of relationship quality have a role as a moderating variables by research model. That is, as a presented with previous research, there is verified that relationship quality is caused by support services of food service franchisor. Also, relationship quality factors significantly affect to performance(re-contract intention). Some guidelines for practicing potential food service franchise as a result of this would include; first of all, it is important to support the potential food service franchise consulting approach for some competitive advantage; secondly, effective governmental support programs for food service franchise should be developed for positive impacts of according to these results.

Analysis of Effect of Aid Fragmentation on Spending on Health by Recipients : Focus on the Sub-Sahara African Nations (원조 범람이 수원국의 보건부분 정부지출에 미친 영향분석: 아프리카 사하라 사막 이남 지역 국가들을 중심으로)

  • Lee, Hyemin;Jang, Duckhee
    • Journal of International Area Studies (JIAS)
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    • v.21 no.1
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    • pp.39-72
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    • 2017
  • The purpose of this study is to conduct an empirical analysis on the effect of aid proliferation on government spending on health by the recipient nations using panel data and acquire information on the direction of future ODA operations. In this study, calculated excessive foreign aid index with regard to the health sector of Sub-Sahara African nations and conducted an empirical analysis on the effect of aid fragmentation on government spending on health sector. The result of the analysis disclosed that aid fragmentation significantly reduced government spending on health. It is anticipated that such trend came from the mutual pursuit of profit between the attribute (the needs of the donor nation) of ODA projects after new businesses and the governments of recipient nations that want ODA funding. Because competitive and excessive supports in ODA projects induce distortion in the government budget operation of the recipient nations and thereby trigger disutility in ODA projects, Based on the result of the analysis, We proposed to incorporate a more comprehensive deliberation with regard to the capacity of the recipient nations as well as a need for the role of mediating body such as DAC.

Proteasome Inhibitor-Induced IκB/NF-κB Activation is Mediated by Nrf2-Dependent Light Chain 3B Induction in Lung Cancer Cells

  • Lee, Kyoung-Hee;Lee, Jungsil;Woo, Jisu;Lee, Chang-Hoon;Yoo, Chul-Gyu
    • Molecules and Cells
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    • v.41 no.12
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    • pp.1008-1015
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    • 2018
  • $I{\kappa}B$, a cytoplasmic inhibitor of nuclear factor-${\kappa}B$ ($NF-{\kappa}B$), is reportedly degraded via the proteasome. However, we recently found that long-term incubation with proteasome inhibitors (PIs) such as PS-341 or MG132 induces $I{\kappa}B{\alpha}$ degradation via an alternative pathway, lysosome, which results in $NF-{\kappa}B$ activation and confers resistance to PI-induced lung cancer cell death. To enhance the anti-cancer efficacy of PIs, elucidation of the regulatory mechanism of PI-induced $I{\kappa}B{\alpha}$ degradation is necessary. Here, we demonstrated that PI up-regulates nuclear factor (erythroid-derived 2)-like 2 (Nrf2) via both de novo protein synthesis and Kelch-like ECH-associated protein 1 (KEAP1) degradation, which is responsible for $I{\kappa}B{\alpha}$ degradation via macroautophagy activation. PIs increased the protein level of light chain 3B (LC3B, macroautophagy marker), but not lysosome-associated membrane protein 2a (Lamp2a, the receptor for chaperone-mediated autophagy) in NCI-H157 and A549 lung cancer cells. Pretreatment with macroautophagy inhibitor or knock-down of LC3B blocked PI-induced $I{\kappa}B{\alpha}$ degradation. PIs up-regulated Nrf2 by increasing its transcription and mediating degradation of KEAP1 (cytoplasmic inhibitor of Nrf2). Overexpression of dominant-negative Nrf2, which lacks an N-terminal transactivating domain, or knock-down of Nrf2 suppressed PI-induced LC3B protein expression and subsequent $I{\kappa}B{\alpha}$ degradation. Thus, blocking of the Nrf2 pathway enhanced PI-induced cell death. These findings suggest that Nrf2-driven induction of LC3B plays an essential role in PI-induced activation of the $I{\kappa}B$/$NF-{\kappa}B$ pathway, which attenuates the anti-tumor efficacy of PIs.

Inhibitory Effects of Ethanol Extract of Rhodiola Sacra on Endoplasmic Reticulum Stress in Neuro-2A Cells (설치류 Neuro-2A 신경세포에서 홍경천 에탄올 추출물의 소포체 스트레스 억제효과)

  • Jo, Nam-Eun;Song, Young-soon
    • Journal of Digital Convergence
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    • v.17 no.8
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    • pp.265-270
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    • 2019
  • Growing evidence suggests that mediating apoptotic cell death of ER stress plays an important role in pathological development of neurodegenerative diseases including Alzheimer's disease. The ethanol extract of Rodiola sacra (ERS) investigates whether ER stress protects neuroinvasive neuro-2A cells from homocysteine (Hcy) cell death and ER stress. In neuronal cells, Hcy markedly decreased the viability of the cells and induced the death of Annexin V-positive cells as confirmed by MTT assay. The Hcy cell viability and apoptotic loss pretreated with ERS were attenuated, and Hcy showed stress in the expression of C / EBP homologous protein, 78-kDa glucose regulatory protein and the junction of X-box binding protein-1 (xbp1) mRNA. ESR decreased Hcy-induced mRNA binding, GRP78 and CHOP cells induced Hcy-induced ER stress and apoptosis, and Western blotting revealed expression of heme oxygenase-1 and HO-1 enzyme activity Inhibition is indicative of therapeutic value for neurodegenerative diseases such as decreased cell death by hemin.

The Effect of Organizational Learning on Management Performance: Mediating Effects of Innovation Activities (조직학습이 경영성과에 미치는 영향 - 혁신활동을 매개로 -)

  • Kang, Hee-Kyung;Choo, Gyo-Wan
    • Management & Information Systems Review
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    • v.37 no.4
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    • pp.237-256
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    • 2018
  • This study focused on the concept of organizational learning as a prior variable of innovation activities, and reviewed the relationship between organizational learning, innovation and management performance. According to prior studies, the ability to perform these activities may be enhanced through organizational learning, as the success of the innovation requires activities to acquire and share knowledge within the organization. In other words, organizational learning is playing a role as a precursor to innovation. Therefore, in this study, the effects of organizational learning on management performance are to be verified through the mediation effect of product and innovation activities. Organizational learning provides various definitions and components for each scholar, but this study consisted of a series of knowledge acquisition, information distribution, information analysis and process memory using the framework of the learning ability analysis by Levitt and March(1988) and Huber(1991), Innovation was also divided into product innovation and process innovation, and measured with sub-variables such as presentation of new products and improvement activities to increase productivity. Management performance was measured as financial and non-financial performance. To verify the effects of the mediation, we used a three-step regression analysis procedure of Baron and Kenny(1986)'s and a sobel-test. Empirical studies show that organizational learning has a positive effect on management performance and that knowledge acquisition and information distribution, which are the early stages of learning activities in the lower variables, affect performance through product innovation. Based on the results of the above empirical study, the implications, limitations of the study and future research directions were presented.

Protective effects of Sasa quelpaertensis Leaf Residue Extract against Potassium Oxonate-induced Hyperuricemia in Mice (생쥐에서 제주조릿대 잎 잔사 추출물의 고요산 혈증 저감 효과)

  • Jang, Mi Gyeong;Song, Hana;Lee, Ju Yeop;Ko, Hee Chul;Hur, Sung-Pyo;Kim, Se Jae
    • Journal of Life Science
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    • v.29 no.1
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    • pp.37-44
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    • 2019
  • Leaves of Sasa quelpaertensis Nakai are used in folk medicine for their anti-inflammatory, antipyretic, and diuretic properties. To ensure efficient utilization of S. quelpaertensis leaf, we previously reported a preparation method for phytochemical-rich extract (PRE) using the leaf residue, which was produced after hot water extraction. This study was undertaken to evaluate the hypouricemic potential of S. quelpaertensis leaf PRE in potassium oxonate (PO)-induced hyperuricemic mice. The administration of PRE significantly reduced serum uric acid (UA), blood urea nitrogen (BUN), and serum creatinine levels and increased urine UA and creatinine levels in the PO-induced hyperuricemic mice. It also reduced liver UA levels and xanthine oxidase (XA) activity. A histological analysis revealed that PRE administration protected against PO-induced liver damage, pointing to anti-inflammatory and cytoprotective effects in PO-induced hyperuricemic mice. We analyzed the transcriptome response to PRE administration in PO-induced hyperuricemic mice using RNA sequencing (RNA-Seq) in kidney tissues. The administration of PRE mainly enriched genes involved in mediating immune and inflammatory responses and the metabolic pathway. A Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the metabolic pathway, purine metabolism, and antibody biosynthesis were the major pathways altered in the PRE and PO groups. These results suggest a potential role for PRE in the prevention and treatment of hyperuricemia with inflammation.

Effect of Multimodal cues on Tactile Mental Imagery and Attitude-Purchase Intention Towards the Product (다중 감각 단서가 촉각적 심상과 제품에 대한 태도-구매 의사에 미치는 영향)

  • Lee, Yea Jin;Han, Kwanghee
    • Science of Emotion and Sensibility
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    • v.24 no.3
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    • pp.41-60
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    • 2021
  • The purpose of this research was to determine whether multimodal cues in an online shopping environment could enhance tactile consumer mental imagery, purchase intentions, and attitudes towards an apparel product. One limitation of online retail is that consumers are unable to physically touch the items. However, as tactile information plays an important role in consumer decisions especially for apparel products, this study investigated the effects of multimodal cues on overcoming the lack of tactile stimuli. In experiment 1, to explore the product, the participants were randomly assigned to four conditions; picture only, video without sound, video with corresponding sound, and video with discordant sound; after which tactile mental imagery vividness, ease of imagination, attitude, and purchase intentions were measured. It was found that the video with discordant sound had the lowest average scores of all dependent variables. A within-participants design was used in experiment 2, in which all participants explored the same product in the four conditions in a random order. They were told that they were visiting four different brands on a price comparison web site. After the same variables as in experiment 1, including the need for touch, were measured, the repeated measures ANCOVA results revealed that compared to the other conditions, the video with the corresponding sound significantly enhanced tactile mental imagery vividness, attitude, and purchase intentions. However, the discordant condition had significantly lower attitudes and purchase intentions. The dual mediation analysis also revealed that the multimodal cue conditions significantly predicted attitudes and purchase intentions by sequentially mediating the imagery vividness and ease of imagination. In sum, vivid tactile mental imagery triggered using audio-visual stimuli could have a positive effect on consumer decision making by making it easier to imagine a situation where consumers could touch and use the product.

The Influence of Organizational Communication Recognized by Irregular Workers on Job Satisfaction and Organizational Commitment (비정규직이 인식한 조직커뮤니케이션이 직무만족과 조직몰입에 미치는 영향)

  • Choi, Jae Won;Lee, Seok Kee;Chun, Sungyong
    • Journal of Digital Convergence
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    • v.19 no.8
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    • pp.101-111
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    • 2021
  • Irregular workers, which have recently caused various socio-economic issues and conflicts, generally have low loyalty to the organization and job satisfaction due to anxiety about employment. As a way to improve this, this study attempted to analyze the effect of organizational communication satisfaction of irregular workers on job satisfaction and organizational commitment. Among the 7th Human Capital Companies panel survey data, irregular workers survey data were collected and analyzed using the structural equation model analysis. The results were as follows: First, it was analyzed that organizational communication recognized by irregular workers had a positive(+) effect on job satisfaction and organizational commitment. Second, it was analyzed that job satisfaction had a positive(+) effect on organizational commitment. Third, it was analyzed that job satisfaction plays a mediating role in the relationship between communication satisfaction and organizational commitment. This study is significant in that it expanded the research subject to irregular workers from the existing service industry-oriented research, and that it included more diverse industries. The results of this study suggest that mission and vision sharing and communication activation system are needed to improve organizational effectiveness of irregular workers.

Does Pygmalion Leadership Play a Role in the Process of Public Organization members' Self-Efficacy and Organizational Commitment to Customer Orientation? (공공조직 구성원의 자아효능감과 조직몰입이 고객지향성에 미치는 과정 중 피그말리온 리더십이 작용하는가?)

  • Na, Kyung-Soo
    • The Journal of the Korea Contents Association
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    • v.21 no.10
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    • pp.356-367
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    • 2021
  • This study is a study on how much organizational leadership influences customer orientation so that it can secure and maintain a continuous competitive advantage in the rapidly changing environment of corporate management and public organizations. it was approached through theoretical consideration of pygmalion leadership. The purpose of this study is as follows. First, a conceptual definition of the three research variables of pygmalion leadership and its constituent atmosphere, feedback, and output is given. Second, the casual relationship between the conceptually defined three research variables of pygmalion leadership and self-efficacy and organizational commitment was verified. Third, the casual relationship was verified on the extent to which pygmalion leadership influences customer orientation through self-efficacy and organizational commitment, which are parameters. Fourth, through the verification result of the casual relationship between the research variables constituting the research model of this study. It was intended to present an implication. In addition, the significance of direct causal relationships between the research variables of pygmalion leadership, mediating variables, and dependent variables, which constitute the verified research models was verified, and the results of hypothesis testing were presented, and the academic and practical implications of the results of this study were presented.

How Indirect Contacts of Older Adults through Media Influence Ageism: Investigating the Mediating Role of Attitudes toward Older Adults and Social Norm (매체를 통한 노인접촉경험이 연령주의 행동의도에 미치는 영향: 노인에 대한 태도와 사회적 규범의 매개효과를 중심으로)

  • An, Soontae;Lee, Sun Young;Chung, Soondool
    • 한국노년학
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    • v.37 no.3
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    • pp.763-781
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    • 2017
  • This study explores the relationship between indirect contacts of older adults and ageism related behaviors by investigating adults' exposure to portrayals of older people and their images in media. This study also investigates how indirect contacts of older adults influence ageism related behaviors such as avoidance and discrimination against older adults through attitudes and social norms about older adults. Using an online survey collected from 252 adults aged 18-64 years, the authors found that indirect contacts of older adults through media predicted attitude toward older adults as well as social norms. The results also revealed that social norm predicted both avoidance and discrimination behavior against older adults while attitude toward older adults only predicted avoidance behavior. Finally, the findings indicated that attitude toward older adults mediated the relationship between indirect contacts through media and avoidance behavior. However, social norm mediated the relationships between indirect contacts through media and discrimination as well as avoidance behaviors. Implication and limitation of the findings are discussed.