Abstract 19813: Sleep Disturbance, Heart Failure, and Cognitive Function in Older Individuals: The Aging Demographics, and Memory Study (ADAMS)

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Chooza Moon ◽  
Ju Young Yoon ◽  
Diane R Lauver ◽  
Lisa Bratzke
Keyword(s):  
Heart Failure ◽  
Cognitive Decline ◽  
Sleep Disturbance ◽  
Structural Equation ◽  
Longitudinal Design ◽  
Mediating Effect ◽  
Mediating Role ◽  
Falling Asleep ◽  
The Relationship

Introduction: Approximately 50% of heart failure (HF) patients experience cognitive decline. In the general population, sleep disturbance is associated with cognitive decline. Sleep disturbance may alter the cellular or chemical homeostasis triggering cognitive decline. Up to 70% of individuals with HF report sleep disturbance. Although the etiology of cognitive decline in HF is unknown, sleep fragmentation and short sleep duration from sleep disturbance may partially explain cognitive decline among individuals with HF. This study investigates the possible mediating role of sleep disturbance on the relationship between HF and cognition. Methods: This cross-sectional study examined 856 older adults’ (mean age: 81.6 years, SD: 7.1, male: 355 (41%), Caucasian: 658 (77 %), HF: 100 (11.7%)) data from Aging, Demographics, and Memory Study. To explore the possibility of meditating effects of sleep disturbance on relationship between HF and cognition, we used a structural equation model. Cognition was measured by neuropyshological tests. Sleep disturbance was determined if a subject was positive on one of the following three questions: 1) “Do you have problem falling asleep?”, 2) “Do you wake frequently during sleep?”, and 3) “Do you wake up too early?” Results: Individuals with HF were likely to have a higher degree of sleep disturbance (β=0.229,p=0.003). Sleep disturbance was a significant predictor of cognitive decline (β=-6.52,p=0.028). However, there was no significant mediating effect of sleep disturbance on the relationship between HF and cognition (β=-0.011,p=0.978) after controlling for age, sex, and comorbidities. Conclusion: Findings from this study suggest that HF can exacerbate sleep disturbance and sleep disturbance can deteriorate cognition. However, the mediating role of sleep disturbance on the relationship between HF and cognitive decline remains questionable. Future studies using objective measures and longitudinal design would enhance our knowledge related to the relationship between heart failure, sleep disturbance, and cognition.

The relationship between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change

2017 ◽  
Vol 30 (4) ◽  
pp. 610-631 ◽  
Author(s):  
Parul Malik ◽  
Pooja Garg
Keyword(s):  
Knowledge Sharing ◽  
Structural Equation ◽  
Affective Commitment ◽  
Learning Culture ◽  
Mediating Effect ◽  
Commitment To Change ◽  
Content Type ◽  
Mediating Role ◽  
The Relationship

Purpose The purpose of this paper is to empirically investigate the relationship between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change. Also, the paper examines the mediating effect of employee resilience on the relationship between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change. Design/methodology/approach The sample comprised of responses from 510 employees’ working in information technology companies based in India. Confirmatory factor analysis was employed to analyse the proposed measurement model and structural equation modelling was used to test the study hypotheses. Additionally, the study utilized mediation analyses proposed by Preacher and Hayes (2004) to investigate the mediating role of employee resilience. Findings The results show significant relationship between the study variables. Employee resilience was found to partially mediate the relationship between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change. Practical implications Examining the relationship between learning culture, inquiry and dialogue, knowledge sharing structure and employee resilience can have significant implications for organizations. The proposed study framework can be utilized by the researchers and human resource practitioners to frame organizational practices and interventions to develop a pool of resilient and change committed workforce. Originality/value First, the general understanding of the relationship between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change is scant in literature. Second, the study extends the previous research by investigating the mediating role of employee resilience between learning culture, inquiry and dialogue, knowledge sharing structure and affective commitment to change.

scholarly journals Good Governance and Public Trust: Assessing the Mediating Effect of E-Government in Pakistan

2019 ◽  
Vol 17 (2) ◽  
pp. 299-320 ◽  
Author(s):  
Arif Jameel ◽  
Muhammad Asif ◽  
Abid Hussain
Keyword(s):  
Structural Equation ◽  
Good Governance ◽  
Public Trust ◽  
Mediating Effect ◽  
Administrative Practices ◽  
Mediating Role ◽  
Confirmatory Factor ◽  
The Relationship ◽  
Research And Policy

Administrative practices have always been acknowledged as a crucial tool for establishing good governance. Strong evidence shows that good governance extensively influences citizens’ behaviors toward government. This study empirically examines how good governance promote public trust with possibly mediating role of e-government. A field survey was conducted by distributing questionnaires to 1000 Pakistani individuals. The response rate was 76.3%. Confirmatory factor analysis and structural equation modelling were used to analyze the data. The results confirmed the casual relationship between good governance and public trust. The results also reveal that e-government plays a mediating role in the relationship between good governance and public trust. The findings may be practically useful for both research and policy making, since it investigated the citizens' perspective of good governance, public trust and e-government.

scholarly journals A Comprehensive Model of Consumers’ Perceptions, Attitudes and Behavioral Intention toward Organic Tea: Evidence from an Emerging Economy

2020 ◽  
Vol 12 (16) ◽  
pp. 6619
Author(s):  
Xiangzhi Bu ◽  
Hoang Viet Nguyen ◽  
Tsung Piao Chou ◽  
Chia-Pin Chen
Keyword(s):  
Purchase Intention ◽  
Structural Equation ◽  
Positive Influence ◽  
Mediating Effect ◽  
Mediating Role ◽  
Sample Data ◽  
Organic Tea ◽  
The Relationship ◽  
Analyze Data

This study investigates factors that predict consumers’ perceptions of healthiness of organic tea. Furthermore, this study also examines the relationship between perceived healthiness and purchase intention with the mediating role of consumers’ attitudes toward organic tea. Because China has been the largest producer and the largest market of the global tea market, this study collects sample data from consumers at different tea stores in China. Using structural equation modelling to analyze data, results indicate that product quality, consumer service, in-store experience, store prestige, and store innovativeness are important predictors of consumers’ perceptions of healthiness of organic tea. Furthermore, results show that perceived healthiness has a positive influence on purchase intention toward organic tea. Consumers’ attitudes toward organic tea also has a positive mediating effect into this relationship.

scholarly journals THE MEDIATING ROLE OF JOB SATISFACTION ON THE RELATIONSHIP BETWEEN PERCEIVED ORGANIZATIONAL SUPPORT AND JOB PERFORMANCE

2019 ◽  
Vol 7 (2) ◽  
pp. 1022-1041
Author(s):  
Zeynep Fatma KARAALİOĞLU ◽  
Ahu Tuğba KARABULUT
Keyword(s):  
Job Satisfaction ◽  
Factor Analysis ◽  
Job Performance ◽  
Organizational Support ◽  
Structural Equation ◽  
Perceived Organizational Support ◽  
Mediating Effect ◽  
Mediating Role ◽  
The Relationship

The objective of this research is to analyze the mediating effect of job satisfaction on the relationship between perceived organizational support (POS) and job performance for white-collar employees in an energy sector in İstanbul. The survey was distributed to 964 employees, while 700 valid questionnaires were included within the scope of the analysis. Exploratory factor analysis (EFA) was carried out to determine factor distribution, while confirmatory factor analysis (CFA) and reliability analysis were carried out to detect scale validities and reliabilities. Relations between scale variables were examined by a correlation analysis. Structural equation model (SEM) was constructed based on research hypotheses while the effect of POS on job satisfaction, the effect of job satisfaction on job performance and the mediating role of job satisfaction on this relation were tested through this model. All hypotheses are supported in this study.

Country of Origin Effect on Purchase Intention Towards Italian Luxury Fashion: Mediating Role of Brand Perception and Social Status

Metamorphosis ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 16-24
Author(s):  
Sandeep Kumar ◽  
Amit Gautam
Keyword(s):  
Social Status ◽  
Purchase Intention ◽  
Structural Equation ◽  
Country Of Origin ◽  
Mediating Effect ◽  
Mediation Effect ◽  
Mediating Role ◽  
Brand Perception ◽  
The Relationship

Economic growth, urbanization and higher disposable incomes have helped to propel growth of luxury fashion in India. Indian customers attach luxury fashion with their social status. Therefore, a need was felt to understand the drivers of purchase intention for luxury fashion goods. The purpose of study is to explain the role of factors which have influence on purchase intention for luxury fashion brands. The research tries to identify the mediating effect of brand perception and social status on interrelationship between country of origin (COO) and purchase intention. The data were collected by means of structured questionnaires from a total of 400 Indian customers residing in the Delhi NCR. Structural equation modelling has been used to find the outcomes. COO, brand perception and social status were found to significantly influence customer purchase intention. However, mediation effect of brand perception was found in relation between COO and purchase intention. Mediation effect of social status also exists in relation between COO and purchase intention. Brand perception and social status sequentially mediate the relationship between COO and purchase intention.

The mediating effect of introjected motivation on the relation between perfectionism and academic burnout

2020 ◽  
pp. 1-13
Author(s):  
Hyunju Choi ◽  
Soohyun Cho ◽  
Jiwon Kim ◽  
Eunjoo Kim ◽  
Jihyun Chung ◽  
...  
Keyword(s):  
Structural Equation ◽  
Academic Motivation ◽  
Target Population ◽  
Mediating Effect ◽  
Cluster Sampling ◽  
Academic Burnout ◽  
Mediating Role ◽  
High Standards ◽  
The Relationship

Abstract Maladaptive perfectionism and controlled motivation are vulnerability factors for burnout. This study examined the relationships between two aspects of perfectionism (high standards, discrepancy), four academic motivational orientations (intrinsic, identified, introjected, extrinsic), and academic burnout. The target population was 12th graders in South Korea, and a total of 950 participants were recruited using cluster sampling. Data were collected from three waves of longitudinal study. In particular, the mediating role of academic motivation (T2) in the link between perfectionism (T1) and academic burnout (T3) was tested using structural equation modelling. The results indicated that introjected motivation mediated the relationship between perfectionism and burnout. Specifically, both high standards and discrepancy were positively associated with introjected motivation, and in turn, introjected motivation was positively associated with burnout. The theoretical and practical implications of these findings are discussed.

scholarly journals Relationship between Peer Influence and Gamer’s Satisfaction in Purchasing Virtual Items for Online Mobile Games: Mediating Role of Hedonic Value

2021 ◽  
pp. 11-25
Author(s):  
Kin Man Chow
Keyword(s):  
Peer Influence ◽  
Structural Equation ◽  
Mediating Effect ◽  
Mediating Role ◽  
Hedonic Value ◽  
Confirmatory Factor ◽  
Game Players ◽  
Game Developers ◽  
The Relationship

Gaming has long been an interest of studies in the behaviour of youngsters. In particular, game players are spending increasing amount of expenses in purchasing gaming related items. Why mobile game players would purchase virtual items for their games? The aim of this study is to examine the mediating effect of hedonic value to the relationship between peer influence and gamer’s satisfaction. Anonymous questionnaire was used to collect data through a survey website. A total of 126 valid responses were collected in the survey. Data collected were first analysed using confirmatory factor analysis, and the conceptual framework was then examined by using the structural equation modelling. Results revealed that there exists a mediating effect of hedonic value on the relationship between peer influence and gamer’s satisfaction. They provide valuable insights to game developers and marketers on how to enhance gamer’s satisfaction by peer influence through enhancement of hedonic value.

Entrepreneurial orientation, social capital, and firm performance: The mediating role of innovation performance

2021 ◽  
pp. 146575032110552
Author(s):  
Huseyin Ince ◽  
Salih Zeki Imamoglu ◽  
Mehmet Ali Karakose
Keyword(s):  
Social Capital ◽  
Firm Performance ◽  
Entrepreneurial Orientation ◽  
Structural Equation ◽  
Innovation Performance ◽  
Mediating Effect ◽  
Mediating Role ◽  
Equation Modelling ◽  
The Relationship

The relationship between entrepreneurial orientation, social capital, innovation performance, and firm performance has attracted the attention of many researchers. However, there is a lack of research on the mediating role of innovation performance on the relationship between entrepreneurial orientation, social capital, and firm performance. The purpose of this study is to investigate the mediating effect of innovation performance on the relationships between entrepreneurial orientation and firm performance and between social capital and firm performance. The study involves a questionnaire-based survey of managers from a variety of firms operating in Turkey. A total of 665 surveys from 298 firms were received and subjected to structural equation modelling analyses. We find that: (1) entrepreneurial orientation and social capital affect innovation performance, (2) innovation performance affects firm performance, and (3) innovation performance mediates the relationship between social capital and firm performance, and between entrepreneurial orientation and firm performance.

scholarly journals Associations Between Uncertainty and Self-Care Ability Among Chinese Enterostomy Patients: A Mediation Analysis

2021 ◽  
Author(s):  
Lijie Huang ◽  
Feijie Wang ◽  
Hongmei Zhang ◽  
Haixin Zhang ◽  
Xiaoxia Chang ◽  
...  
Keyword(s):  
Perceived Stress ◽  
Structural Equation ◽  
Self Care ◽  
Mediating Effect ◽  
Equation Modeling ◽  
Recycling Rate ◽  
Cross Sectional ◽  
Mediating Role ◽  
The Relationship

Abstract Purpose The relationship between uncertainty and self-care behaviors is well documented in the literature, however, there exists a paucity of information on the mediating effect of perceived stress on the relationship between uncertainty and self-care ability among enterostomy patients. This study aimed to examine the relationship between uncertainty and self-care ability among enterostomy patients, and explore the mediating role of perceived stress.Methods 462 enterostomy patients aged (60.00 ± 12.81) years old participated in the study. Cross-sectional study was conducted among them by a set of self-administered questionnaires, which includes demographic information, perceived stress scale, illness uncertainty scale, and ostomy self-care ability scale. Multiple linear regression analyses were performed to explore the role of perceived stress between Uncertainty and self-care ability, structural equation modeling was used to verify it.Results 450 participants finally completely finished the research, with the recycling rate of 97.4%. Uncertainty was demonstrated positively related to perceived stress(r = 0.215, P < 0.01), and negatively related to self-care ability(r=-0.470, P < 0.01), perceived stress was negatively related to self-care ability(r=-0.640, P < 0.01). Perceived stress played a partially mediating role between Uncertainty and self-care ability, which accounted 40.8 % of the total effect.Conclusions The findings present a conceptual model containing the mediated effects of perceived stress, which facilitated our understanding of the relationship among uncertainty, perceived stress, and self-care ability. Thus, perceived stress and uncertainty should be the focus, in order to improve self-care ability of the enterostomy patients.

Being abused, dealt unfairly, and ethically conflicting? Quitting occupation in the lap of silence

2019 ◽  
Vol 12 (1) ◽  
pp. 22-39
Author(s):  
Abdul Mannan ◽  
Muhammad Kashif
Keyword(s):  
Structural Equation ◽  
Service Sector ◽  
Turnover Intentions ◽  
Mediating Effect ◽  
Equation Modeling ◽  
Perceived Injustice ◽  
Content Type ◽  
Mediating Role ◽  
The Relationship

Purpose The purpose of this paper is to investigate the integrative effects of abusive supervision (AS), perceived injustice (PI) and ethical conflict (EC) on occupational turnover intentions (OTI) among frontline employees (FLEs). Furthermore, the mediating role of quiescent silence (QS) is examined. Design/methodology/approach The authors collected survey-based data from 320 FLEs working in different service sector organizations of Pakistan. The snow-ball sampling technique is employed to approach respondents of this study. The collected data are analyzed through structural equation modeling (SEM) technique using SmartPLS 3.0. Findings The AS, PI and EC are found to collectively predict OTI among FLEs with a mediating effect of QS. The EC is the strongest predictor of OTI. Practical implications The results imply that service managers must ensure that employees are treated fairly. Furthermore, relevant trainings are offered to FLEs in order to maintain the required ethical standards at work to reduce EC perceptions. Originality/value The study is pioneer in presenting the relationship between QS and occupational turnover among FLEs. Furthermore, the study advocates the mediating role of employee quiescent silence to enrich the relationship between socio-psychological factors (i.e. AS, EC and PI) and OTI.

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