• Title/Summary/Keyword: Mediation Effect Model

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The Effects of Automatically Controlled Rotating Acupuncture on Thermal Allodynia in a Rat Model of Neuropathic Pain: Mediation by Endogenous Opioid System (신경병증성 통증에 대한 자동염전침의 진통효과 및 opioid 기전)

  • Park, Jung-Hyuk;Kim, Sun-Kwang;Na, Hyo-Suk;Moon, Hak-Jin;Min, Byung-Il;Kim, Ki-Hong;Rhim, Sung-Soo;Lee, Soon-Geul;Lee, Sang-Hoon
    • Journal of Acupuncture Research
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    • v.23 no.5
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    • pp.23-29
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    • 2006
  • Objectives : The present study was conducted to evaluate the effects of automatically controlled rotating acupuncture (ACRA) on thermal allodynia in neuropathic pain rats, and to examine whether the endogenous opioid system mediates the effects of ACRA. Methods : For the neuropathic surgery, the right superior caudal trunk was resected at the level between S1 and S2 spinal nerves innervating the tail. Two weeks after the nerve injury, ACRA stimulation with 4 different stimulation conditions (i.e., angle and frequency of rotation: 90o+1Hz, 90o+1/4Hz, 360o+/1Hz, and 360o+1/4Hz) was delivered to the Zusanli (ST36) acupoint for 15 min. The behavioral signs of thermal allodynia were evaluated by the tail immersion test (i.e., immersing the tail in cold $(4^{\circ}C)$ or warm $(4^{\circ}C)$ water and measuring the latency to an abrupt tail movement) before and after the stimulation. In an additional set of experiments, we examined the effects of naloxone (opioid Results : ACRA stimulations under all of the conditions above significantly relieved thermal antagonist, 2mg/kg, i.p.) on the action of ACRA stimulation. allodynia. There is no difference in the anti-allodynic effects among the 4 stimulation conditions. In addition, the effect of ACRA on thermal allodynia was reversed by naloxone pretreatment. Conclusion : These results indicate that ACRA stimulations have relieving effects on thermal allodynia in neuropathic pain rats, irrespective of stimulation parameters, and that this is mediated by the endogenous opioid system.

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The effects of single-parent households on children's school adjustment -Mediation of children's self-care and media exposure- (한부모가정여부가 아동의 자기보호와 미디어노출을 통해 학교적응에 미치는 영향)

  • Yang, Kyunghae;Kang, Hyunah
    • Journal of the Korean Society of Child Welfare
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    • no.56
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    • pp.221-251
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    • 2016
  • The purpose of this study was to examine whether single-parent family status affects children's school adjustment through children's self-care and media exposure. In addition, the study investigated the mediating effects of self-protection and media exposure of children by analyzing whether single-parent family status has effects on school adjustment through self-care and media exposure of children. For this purpose, we used data of 1,916 students in the 4th grade who participated in the 4th year of the Korean Children and Youth Panel Survey (KCYPS). The results of the structural equation modeling showed that single-parent family environment not only had direct effects on the school adjustment, but also had effects on school adjustment through self-care of children. In addition, it was revealed that self-care of children influenced school adjustment through media exposure. One of the covariates, monthly income of households, did not affect the level of children's self-care. This result draws attention to the problems of the structural deficit of single-parent families. Therefore, political measures that correspond to the structural characteristics and special needs of single-parent families, along with their current financial support, are needed to improve the level of school adjustment of children from single-parent families.

The Effects of Fairness and Service Quality on the Loyalty in the R&D Processes: Mediation Effect of Trust (연구개발 과정에서 공정성과 서비스 품질이 충성도에 미치는 영향: 신뢰의 매개효과)

  • Jeong, Yonggil;Sohn, Minho
    • Journal of Service Research and Studies
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    • v.8 no.4
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    • pp.77-88
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    • 2018
  • Collaboration works on R&D project have many characteristics in interoranizational relationships. There are many variables on explaining the their relationships. In the previous study, I chose some relevant variables and some hypotheses. Base on service marketing theories and relationship marketing perspective I suggest 5 hypotheses. Independent variables are fairness and quality, and dependent variable is loyalty. And trust are treated as the intervening variable between the independent variables and dependent variable. To test the research model and some hypothesis empirically, I collected the data using the questionnaire. Sample size was 448, it was enough to analyze statistically. Data were analysed using the SPSS and AMOS. In the previous study, H1($fairness{\rightarrow}trust$), H2($quality{\rightarrow}trust$), H5($trust{\rightarrow}loyalty$) were accepted, but H3 and H4 were rejected. The reason H3($fairness{\rightarrow}loyalty$) and H4($quality{\rightarrow}loyalty$) were not accepted might be attributed to the fact that trust was the mediating variable between fairness and loyalty, quality and loyalty. Specific research methodologies and statistical findings from AMOS were referred in the previous study(Jeong 2018). In this study, I suggested some hypotheses on the mediating role trust between fairness and loyalty and service quality and loyalty. Using the PROCESS-macro, I found that trust was the mediating variable between fairness and loyalty as well as service quality and loyalty. This research is the complementary and extended study from previous research.

Relationship between Somatization and Mental Health of Registered Nurses (간호사의 신체화 증상과 정신건강의 관계)

  • Joo, Jungmin;Goo, Ae Jin;Kim, Sung-Wan
    • Korean Journal of Psychosomatic Medicine
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    • v.28 no.2
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    • pp.135-142
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    • 2020
  • Objectives : To identify the relationship between somatization, stress, depression, anxiety, and psychological symptoms risk for nurses working in the intensive care unit. Create clinical evidence of psychosomatic medicine research and complement the meaning of somatization. Methods : Seventy of the mental health checkups conducted by the National Mental Health Center among the nurses using tools including Perceived Stress scale, Fatigue Severity Scale, Patient Health questionnaire-15, Korean Beck Depression Inventory, Korean Beck Anxiety Inventory, and Symptom Checklist-90-Revision. Results : 12.9% of the patients experienced more than moderate somatization. There was no statistical relationship between somatization and psychological stress perception, but feeling of anxiety and decreased self-confidence were related to the level of somatization. The group with severe somatization experienced more depression and anxiety. The group with high physical fatigue also had no statistical relationship with psychological stress perception, but had an effect on the feeling of tension, stress, or decreased control. Physical fatigue level was increased by experience of depression, not by anxiety. For psychological symptoms the higher the level of somatization, the higher the obsession and hostility was explored. In the linear regression model, stress, depression, and anxiety accounted for 39.3% of somatization and 16.1% of physical fatigue symptoms. Conclusions : We can estimate the decrease in stress cognitive symptoms, accompanying depression and anxiety, compulsion and hostility as characteristics of somatization. The causal relationship between somatization and psychological symptoms cannot be confirmed in this study, but the interrelationships are observed, can be referred to mediation strategies.

The Relationship between Traditional Gender Role Attitudes of Fathers with Young Children on Perceived Maternal Gatekeeping Roles: The Mediating Effect of Paternal Depression (영유아기 자녀가 있는 아버지의 전통적인 성역할태도와 아버지가 인식한 어머니 문지기 역할의 관계: 아버지 우울의 매개효과)

  • Lee, Seul-Ki;Yoo, Sung-Kyung;Bang, Ji-Won
    • Korean Journal of Culture and Social Issue
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    • v.28 no.1
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    • pp.23-41
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    • 2022
  • This study aims to examine the mediating effects of paternal depression on the relationship between traditional gender role attitudes and the perceived maternal gatekeeping roles of fathers with young children. For this purpose, a survey was conducted by 366 married fathers who raises at least one child who is under seven years old. Mplus 7.0 was used to analyze the structural equation model, and the result showed that higher traditional gender role attitudes relate to more depressive symptoms, higher perceptions of maternal gate closing and lower perceptions of maternal gate opening. Also, more depressive symptoms were related to higher perceptions of maternal gate closing and lower perceptions of maternal gate opening. Additionally, the partial mediation effects of depression were observed in the relationship between traditional gender role attitudes and maternal gate keeping. Based on the findings, implications for therapeutic interventions were discussed, and recommendations for future research are presented.

The Perceived Usefulness of Smartwork and Work-family Conflict (스마트워크 유용성 지각과 일-가정 갈등에 관한 연구: 경계유연추구의도의 매개효과 및 과업상호의존성과 과정통제의 조절효과 검증)

  • Won-Chul Park ;Hyun-Sun Chung ;Dong-Gun Park
    • Korean Journal of Culture and Social Issue
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    • v.19 no.2
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    • pp.109-131
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    • 2013
  • It is expected that expanded use of smartphone and enhanced information technology will enable smartwork to change individuals and organizations. Smartwork is expected to allow people to perform their roles without barriers of time and space. However, people tend not to accept and actively utilize smartwork. The present study is to examine how important flexibility-willingness is for performance outcome in the context of smartwork. It was hypothesized that flexibility-willingness mediates between perceived smartwork usefulness and work-family conflict. It was also hypothesized based on technology acceptance model that task interdependence and process control moderates the relationship between flexibility-willingness and work-family conflict because the relationship is not consistent. The results show that the mediation effect of the flexibility-willingness is statistically significant. The moderator effects of task interdependence was marginal proved but process control wasn't. From these results, we discussed the theoretical implications of findings, limitations, suggestions for future research in discussion.

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Does Social Exclusion Increase Materialism? The Moderated Mediation Model of the Need to Belong, the Need for Control, and a Sense of Power (사회적 배제는 물질주의를 증가시키는가? 소속과 통제의 욕구 및 권력감의 조절된 매개 효과)

  • Hyorim Chung;Hyebin Kwon;Jiyoung Park
    • Science of Emotion and Sensibility
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    • v.26 no.3
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    • pp.53-68
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    • 2023
  • Materialism can be triggered by various social events. Based on theories on functions of materialistic goal pursuit, this study investigates how social exclusion evokes desires related to one's identity, resulting in an increase in materialism. Specifically, we predicted that social exclusion would increase the desire for control and belonging, thus leading to higher levels of materialism. Moreover, based on the theory of the approach tendency of power, we further predicted that individuals with a higher sense of power would experience greater desires for belonging and control when faced with social exclusion. To examine the hypotheses, we conducted an experiment using 202 Korean women. The results indicated that social exclusion resulted in an increase in the desire for control, thus increasing materialism. This relationship is stronger for individuals with a high sense of power, and the path from social exclusion to materialism based on the need for control is significant for those with a high sense of power. Although social exclusion increases the need to belonging, the relationship between the need to belonging and materialism is not significant, and its mediating effect was not supported in this study. Based on these findings, we discussed implications and directions for future research.

An identification of determinants to the development of intrapreneurial intention in small & medium sized local hospital in South Korea

  • Chang Hun Lee;Michael G. Hathorn;Doo Young Lee
    • Korea Journal of Hospital Management
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    • v.29 no.2
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    • pp.57-79
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    • 2024
  • Purpose: The present study identified the determinants in the development of intrapreneurial intention in small and medium-sized local hospitals. A careful literature review led to the development of a conceptual model which identified two types of employee competence-individual competence and managerial competence-to influence intrapreneurial orientation positively. It was hypothesized that intrapreneurial orientation predicts intrapreneurial intention and is mediated by intrapreneurial commitment. Methodology/Approach: The target population was chosen from two medical institutions of 'D' Hospital and 'E' Geriatric Hospital in Changwon City, South Korea. Samples were collected from 299 respondents who completed a structured questionnaire. Findings: The results from a structural equation modeling statistical analysis indicated that (1) individual competence and managerial competence positively and significantly predict intrapreneurial orientation, (2) intrapreneurial orientation positively and significantly influences intrapreneurial intention, (3) intrapreneurial commitment partially mediates the relation of intrapreneurial orientation to intrapreneurial intention, and (4) the mediation effect of intrapreneurial commitment was significant in the medical-personnel group, but not in the non-medical group. Practical Implications: Overall findings from the present work provide vital insights into understanding the preconditions for developing employee intrapreneurship in small and medium-sized local hospitals.

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A Study on the Effects of Lifestyle and Self-Expression Desire on Vegan Cosmetics Purchase Intention: Focusing on the Mediating Effect of Social Value (라이프스타일 유형과 자기표현욕구가 비건화장품 구매의도에미치는 영향에 관한 연구: 사회적가치의 매개효과 중심으로)

  • Kim, Jung-In;Chul-Moo Heo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.5
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    • pp.217-240
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    • 2023
  • For a while, Functional cosmetics, Cosmeceutical cosmetics, and Derma cosmetics have gained trust and become popular due to the consumers' strong interest in ingredients & efficacy. It's remarkable that Clean or Vegan brands are growing fast because they are emphasizing on different values from the other cosmetic brands. It's needed to attempt to analyze the influence relationship between consumer lifestyle and social value in these changes, and to find out whether the consumption of vegan cosmetics is related to satisfying the need for self-expression in a social atmosphere where ESG is emphasized on. This study analyzed the effect of lifestyle types and self-expression needs on the purchase intention of vegan cosmetics by mediating social values for cosmetics consumers. Lifestyle types were classified into appearance-oriented, health-oriented, and fashion-oriented. For empirical analysis, 321 questionnaires collected from cosmetics consumers living across the country were used. SPSS v26.0 and PROCESS macro v4.2 were used to analyze based on a single mediating model as a single mediator. As a result of the analysis, first, lifestyle types and self-expression needs, excluding appearance-oriented types, were found to have a positive (+) effect on social values. Second, it was found that social value had a positive (+) significant effect on the purchase intention of vegan cosmetics. Third, appearance-oriented, health-oriented, trend-seeking lifestyle types and self-expression needs were all found to have a positive (+) effect on the purchase intention of vegan cosmetics. Fourth, social values were found to mediate lifestyle types, self-expression needs, and purchase intentions, except for appearance-oriented types. Appearance-oriented consumers do not directly affect social values but affect purchase intentions, suggesting that appearance-oriented consumers may not be significantly affected by product-related social values. In a comparison of the relative influence size using standardization coefficients, self-expression needs had the greatest impact on the purchase intention of vegan cosmetics when mediating social values, and health-oriented ones had the least impact. The academic implications of this study include contributing to consumer behavior research by providing insights, mediation mechanisms, and consideration of the niche consumer sector, and directing further research into the cosmetics industry beyond forming marketing strategies and sustainable business practices.

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Do Women's Attitude to Domestic Works and Self-perception of Social Norms Enforce the Gender Division of Housework? - Analysis of Mediation Effects Using the Theory of Reasoned Action - (여성의 가사노동에 대한 태도 및 사회적 규범에 대한 여성의 인식이 가사노동시간의 성불평등에 영향을 미치는가?: 합리적 행위이론을 통한 매개효과 분석)

  • Lee, Seungju;Lee, Somin
    • Korean Journal of Family Social Work
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    • no.58
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    • pp.5-36
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    • 2017
  • This study aims to empirically analyze whether the women's cognitive attitude toward gender role, which is formed through social norms, enforces the gender division of housework. In this study, 4,435 married women aged 18-59 years from the 5th wave dataset of Korean Longutudinal Survey of Women and Family Data were selected for analysis. Using the Structural Equation Model(SEM), we examine the direct effect of "attitude toward behavior" and "subjective norm" on the domestic working hours and whether those two independent variables, such as "attitude toward behavior" and "subjective norm," influence the mediator variable "Behavior Intention" which in turn affect the dependent variable. The study reveals that "attitude toward the gender division of housework" has a statistically significant direct effect on the domestic working hours as well as an indirect effect operating through "behavior intention." And"subjective norm "has only a statistically significant indirect effect on the domestic working hours, operating through "behavior intention." Despite the fact that many women are now aware that various work-life balance policies are avaliable to mitigate the gender inequality of domestic works, it is proven that the gender division of housework becomes worse. The reason behind this is not only because there exist some problems in implementing the institutions themselves, but also because women's deeply internalized self-perception of gender role based on the traditional patriarchal culture somehow exacerbates the gender division of housework. Hence, in order to instill a progressive change in gender division of housework, it is important for women to try to change the way they perceive the stereotypical gender roles as well as for men to treat women equally.