Arash Heidari and Nima Jafari Navimipour
The main goal of this paper is to study the cloud service discovery mechanisms. In this paper, the discovery mechanisms are ranked in three major classes: centralized…
Abstract
Purpose
The main goal of this paper is to study the cloud service discovery mechanisms. In this paper, the discovery mechanisms are ranked in three major classes: centralized, decentralized, and hybrid. Moreover, in this classification, the peer-to-peer (P2P) and agent-based mechanisms are considered the parts of the decentralized mechanism. This paper investigates the main improvements in these three main categories and outlines new challenges. Moreover, the other goals are analyzing the current challenges in a range of problem areas related to cloud discovery mechanisms and summarizing the discussed service discovery techniques.
Design/methodology/approach
Systematic literature review (SLR) is utilized to detect, evaluate and combine findings from related investigations. The SLR consists of two key stages in this paper: question formalization and article selection processes. The latter includes three steps: automated search, article selection and analysis of publication. These investigations solved one or more service discovery research issues and performed a general study of an experimental examination on cloud service discovery challenges.
Findings
In this paper, a parametric comparison of the discovery methods is suggested. It also demonstrates future directions and research opportunities for cloud service discovery. This survey will help researchers understand the advances made in cloud service discovery directly. Furthermore, the performed evaluations have shown that some criteria such as security, robustness and reliability attained low attention in the previous studies. The results also showed that the number of cloud service discovery–related articles rose significantly in 2020.
Research limitations/implications
This research aimed to be comprehensive, but there were some constraints. The limitations that the authors have faced in this article are divided into three parts. Articles in which service discovery was not the primary purpose and their title did not include the related terms to cloud service discovery were also removed. Also, non-English articles and conference papers have not been reviewed. Besides, the local articles have not been considered.
Practical implications
One of the most critical cloud computing topics is finding appropriate services depending on consumer demand in real-world scenarios. Effective discovery, finding and selection of relevant services are necessary to gain the best efficiency. Practitioners can thus readily understand various perspectives relevant to cloud service discovery mechanisms. This paper's findings will also benefit academicians and provide insights into future study areas in this field. Besides, the drawbacks and benefits of the analyzed mechanisms have been analyzed, which causes the development of more efficient and practical mechanisms for service discovery in cloud environments in the future.
Originality/value
This survey will assist academics and practical professionals directly in their understanding of developments in service discovery mechanisms. It is a unique paper investigating the current and important cloud discovery methods based on a logical categorization to the best of the authors’ knowledge.
Details
Keywords
Ali Safari, Arash Adelpanah, Razieh Soleimani, Parisa Heidari Aqagoli, Rosa Eidizadeh and Reza Salehzadeh
This study aims at investigating the effect of psychological empowerment on job burnout and competitive advantage with the mediating role of organizational commitment and…
Abstract
Purpose
This study aims at investigating the effect of psychological empowerment on job burnout and competitive advantage with the mediating role of organizational commitment and creativity.
Design/methodology/approach
The statistical population included all the managers and staffs of Tooka Company in Iran, and for data analysis, 120 completed questionnaires were used. Data analysis was carried out by SPSS 18 and Amos 20 software and structural equation modeling method. To test the mediating relationships, bootstrap method was used.
Findings
The findings showed that psychological empowerment has a significant direct effect on job burnout and competitive advantage. Also, psychological empowerment has a significant indirect effect on job burnout through the mediating role of organizational commitment. In addition, psychological empowerment has a significant indirect effect on competitive advantage through the mediating role of organizational creativity.
Originality/value
This study is among the first to investigate the relationship between psychological empowerment, job burnout, competitive advantage, organizational commitment and creativity.
Objetivo
El trabajo tiene como objetivo investigar el efecto del empoderamiento psicológico en el burnout y la ventaja competitiva, junto con el papel mediador del compromiso y la creatividad de la organización.
Diseño/metodología/aproximación
La población incluyó a todos los gerentes y personal de la Compañía Tooka en Irán. Para el análisis de datos se utilizaron 120 cuestionarios completos. El análisis de los datos se realizó mediante el software SPSS 18 y Amos 20 y el método de modelado de ecuaciones estructurales. Para probar las relaciones de mediación, se utilizó el método bootstrap.
Resultados
Los resultados muestran que el empoderamiento psicológico tiene un efecto directo significativo en el burnout y la ventaja competitiva. Además, el empoderamiento psicológico tiene un efecto indirecto significativo en el burnout a través del papel mediador del compromiso organizacional. Además, el empoderamiento psicológico tiene un efecto indirecto significativo sobre la ventaja competitiva a través del papel mediador de la creatividad organizacional.
Originalidad/valor
Este trabajo es uno de los primeros en investigar la relación entre empoderamiento psicológico, burnout, ventaja competitiva, compromiso organizacional y creatividad.
Objetivo
A pesquisa atual teve como objetivo investigar o efeito do empoderamento psicológico na síndrome de Burnout no trabalho e na vantagem competitiva com o papel mediador do compromisso organizacional e da criatividade.
Desenho/metodologia/abordagem
A população estatística inclui todos os gestores e funcionários da Tooka Company no Irã e para a análise de dados, foram utilizados 120 questionários. A análise de dados foi realizada em SPSS 18 e amos 20 e com a metodologia de equações estruturais. Para testar os relacionamentos mediadores, o método bootstrap foi usado.
Resultados
Os resultados mostraram que o empoderamento psicológico tem um efeito direto significativo no Burnout no trabalho e na vantagem competitiva. Além disso, o empoderamento psicológico tem um efeito indireto significativo no Burnout no trabalho através do papel mediador do compromisso organizacional. Além disso, o empoderamento psicológico tem um efeito indireto significativo na vantagem competitiva através do papel mediador da criatividade organizacional.
Originalidade/valor
Esta pesquisa está entre as primeiras a investigar a relação entre empoderamento psicológico, Burnout no trabalho, vantagem competitiva, compromisso organizacional e criatividade.
Details
Keywords
- Psychological empowerment
- Organizational commitment
- Job burnout
- Organizational creativity
- Competitive advantage
- Empoderamiento psicológico
- Compromiso organizacional
- Burnout
- Creatividad organizacional
- Ventaja competitiva
- Empoderamento psicológico
- Compromisso organizacional
- Burnout no trabalho
- Criatividade organizacional
- Vantagem competitiva
Parisa Heidari Aqagoli, Ali Safari and Arash Shahin
The purpose of this paper is to determine the attractiveness or unattractiveness of cyberloafing in the workplace using Q methodology and the Kano model.
Abstract
Purpose
The purpose of this paper is to determine the attractiveness or unattractiveness of cyberloafing in the workplace using Q methodology and the Kano model.
Design/methodology/approach
The perception of employees towards cyberloafing was investigated based on Q methodology, and then they were prioritized using Kano model. Ten IT companies were selected for the case study. In this study, a mixed method was used. First, 30 participants were interviewed. Next, after extracting the comments, Q-matrix was presented to 30 participants and they completed the matrix cells. Finally, Kano questionnaire was designed using the items obtained from Q methodology and distributed among 30 participants.
Findings
Q methodology led to nine perceptions, and the priorities of Kano model were proponents of increasing employees' dependence on the internet, economic thinkers, the indifferent, dissatisfied, proponents of receiving information, self-control proponents, the profit-minded, mind destroyer and satisfaction-oriented. Cyberloafing is considered unattractiveness with adverse effects. The combination of Q methodology and Kano model can improve the analysis of the results.
Originality/value
This study is one of the few studies in which Q methodology is improved by Kano model. In the past, Q methodology alone examined people’s perception, but by combining these two methods, it is determined which perception is more satisfying and which one is more important, and then a general result can be reached.
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Keywords
Zhe Tian, Seyed Amin Bagherzadeh, Kamal Ghani, Arash Karimipour, Ali Abdollahi, Mehrdad Bahrami and Mohammad Reza Safaei
This paper aims to propose a new nonlinear function estimation fuzzy system as a novel statistical approach to estimate nanofluids’ thermal conductivity.
Abstract
Purpose
This paper aims to propose a new nonlinear function estimation fuzzy system as a novel statistical approach to estimate nanofluids’ thermal conductivity.
Design/methodology/approach
A fuzzy system having a product inference engine, a singleton fuzzifier, a center average defuzzifier and Gaussian membership functions is proposed for this purpose.
Findings
Results indicate that the proposed fuzzy system can predict the thermal conductivity of Al2O3/paraffin nanofluid with appropriate precision and generalization and it also outperforms the classic interpolation methods.
Originality/value
A new nonlinear function estimation fuzzy system was introduced as a novel statistical approach to estimate nanofluids’ thermal conductivity for the first time.
Details
Keywords
Mina Takhsha, Negar Barahimi, Arash Adelpanah and Reza Salehzadeh
This study aims to evaluate the effect of workplace ostracism on organization-based self-esteem (OBSE), organizational silence and knowledge sharing.
Abstract
Purpose
This study aims to evaluate the effect of workplace ostracism on organization-based self-esteem (OBSE), organizational silence and knowledge sharing.
Design/methodology/approach
The statistical population of this research includes the employees of University of Isfahan in Iran. The structural equation modeling method is used to analyze the data and the conceptual model using 130 participants.
Findings
The empirical results suggest that ostracism and organizational silence influence knowledge sharing, negatively. Ostracism influences organizational silence, positively; and ostracism influences OBSE, negatively. Furthermore, organization-based self-esteem influences knowledge sharing, positively. In addition, the indirect relationship from ostracism to knowledge sharing through organizational silence was confirmed; however, the mediating role of OBSE in the relationship between workplace ostracism and knowledge sharing was not confirmed.
Originality/value
This research is among the first to evaluate the relationship between workplace ostracism, knowledge sharing, organizational silence and OBSE simultaneously.
Details
Keywords
Ali Kazemi Karyani, Satar Rezaei, Behzad Karami Matin and Saeed Amini
Poor health-related quality of life (HRQoL) is one of the important issues in the health sector. The purpose of this paper is to investigate the prevalence and socio-economic…
Abstract
Purpose
Poor health-related quality of life (HRQoL) is one of the important issues in the health sector. The purpose of this paper is to investigate the prevalence and socio-economic inequality in poor HRQoL in Tehran city, Iran.
Design/methodology/approach
In total, 562 adults were included in this cross-sectional study. The cluster sampling method was used for data collection from May to June, 2016 in Tehran city, Iran. Data on HRQoL, using EuroQol 5-dimensions questionnaire, and data on socio-economic and demographic variables were gathered. Convenience regression method was performed to measure the concentration index (CI). Decomposition analysis was performed to determine the contribution of variables on socio-economic inequality in poor HRQoL. All analyses were performed by Stata v.14.
Findings
The prevalence of poor HRQoL was 28.3 percent. The value of CI for “poor HRQoL” was −0.299 (95% confidence interval: −0.402 to −0.195). Socio-economic status (SES) was the largest contributor to socio-economic inequality in poor HRQoL (69.44 percent of inequality was explained by SES). Age, obesity and race had a positive contribution to socio-economic inequality in poor HRQoL among the participants. Nonetheless, sex and smoking intensity had a negative contribution to inequality in poor HRQoL.
Originality/value
There is little evidence about the prevalence of poor HRQoL in insured people. This study provided new evidence in this area through the investigation of socio-economic inequality in poor HRQoL and its determinants among people with health insurance in Iran using decomposition analysis.