Hossein Mansouri, Abdullah Rasaee Rad, Rodoula H. Tsiotsou and Maizaitulaidawati Md Husin
The study aims to identify critical factors that influence football fans’ support of their favorite team by examining the impact of social responsibility, brand credibility and…
Abstract
Purpose
The study aims to identify critical factors that influence football fans’ support of their favorite team by examining the impact of social responsibility, brand credibility and team brand equity on patronage intentions of professional football teams.
Design/methodology/approach
An online survey collected data from 331 football fans of the Persian Gulf Premier League (PGPL) in Iran. The data were analyzed using partial least squares structural equation modeling (PLS-SEM).
Findings
The findings revealed that corporate social responsibility (CSR) is able to influence brand equity, brand credibility and patronage intentions. Also, brand equity and brand credibility were found to be positively related to patronage intentions. In addition to that, the findings show that brand equity and team credibility partially mediate the relationship between CSR and patronage intentions.
Practical implications
The findings provide valuable insights to sports teams/club managers aiming to attract new fans and retain current ones by investing in CSR and enhancing brand credibility and equity. Strategies to integrate CSR into relationship marketing and brand management are outlined.
Originality/value
This study empirically highlights the critical role of adhering to CSR and the effects of brand credibility and equity in enhancing patronage intentions among football team fans.
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S.H. Mahdavi, S.H. Mansouri and A. Kimiaeifar
The purpose of this paper is to present, for the first time, a mathematical model for a piston skirt in mixed lubrication with respect to applying a smart fluid in lubrication. In…
Abstract
Purpose
The purpose of this paper is to present, for the first time, a mathematical model for a piston skirt in mixed lubrication with respect to applying a smart fluid in lubrication. In this way, the smart fluid, as a lubricant with controlled variable viscosity, is proposed and applied to minimize the power loss in the interaction between liner and skirt.
Design/methodology/approach
Based on signal processing, the relationships between viscosity of lubricant and the friction loss, the hydrodynamic and contact friction force consequently are found, as part of an effective approach to acquire the function of variable viscosity.
Findings
It is shown that hydrodynamics and contact friction forces can be controlled and minimized by using the variable viscosity signal with the optimized viscosity signal technique.
Originality/value
In this paper, a mathematical model for a piston skirt in mixed lubrication with respect to applying a smart fluid in lubrication is presented for the first time.
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H. Amiri, S.H. Mansouri and P.J. Coelho
The solution of radiative heat transfer problems in participating media is often obtained using the standard discrete ordinates method (SDOM). This method produces anomalies…
Abstract
Purpose
The solution of radiative heat transfer problems in participating media is often obtained using the standard discrete ordinates method (SDOM). This method produces anomalies caused by ray effects if radiative boundary conditions have discontinuities or abrupt changes. Ray effects may be mitigated using the modified discrete ordinates method (MDOM), which is based on superposition of the solutions obtained by considering separately radiation from the walls and radiation from the medium. The purpose of this paper is to study the role of ray effects in combined conduction‐radiation problems and investigate the superiority of the MDOM over SDOM.
Design/methodology/approach
The MDOM has been used to calculate radiative heat transfer in irregular geometries using body‐fitted coordinates. Here, the blocked‐off region concept, originally developed in computational fluid dynamics, is used along with the finite volume method and SDOM or MDOM to solve combined conduction‐radiation heat transport problems in irregular geometries. Enclosures with an absorbing, emitting and isotropically or anisotropically scattering medium are analyzed.
Findings
The results confirm the capability of the MDOM to minimize the anomalies due to ray effects in combined heat transfer problems, and demonstrate that MDOM is more computationally efficient than SDOM.
Originality/value
The paper demonstrates the application of MDOM to combined conduction‐radiation heat transfer problems in irregular geometries using blocked‐off method.
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Mahdi Ghaemi Asl and Mohammad Ghasemi Doudkanlou
This study aims to identify and compare the measurement models of earnings management (EM) appropriate to the Iranian Islamic banking system. The importance of reported profit…
Abstract
Purpose
This study aims to identify and compare the measurement models of earnings management (EM) appropriate to the Iranian Islamic banking system. The importance of reported profit figures has motivated business executives, who also perform financial reporting, to manipulate these figures. These measures are referred to as “earnings management,” which negatively influence the quality of reported earnings and financial statements' reliability.
Design/methodology/approach
In this study, four methods, namely, Jones (1991), modified Jones (Dechow et al., 1995), Kasznik (1999) and Kothari et al. (2005), were used to measure the EM index in 25 Iranian Islamic banks (IBs) registered with the Tehran Stock Exchange and/or the Central Bank of Iran. The study covered the period 2005–2020. Following the aforementioned methods, this research implemented templates that were repeatedly tested in subsequent studies using accruals to discover EM.
Findings
The results show that the Kasznik (1999) model is the preferred and compatible model with the Iranian Islamic banking system's accrual behaviour due to the consistency of the measurement coefficients with theoretical and previous research findings. Therefore, total accruals, including discretionary accruals and non-discretionary accruals, have the most correspondence with (1) property, machinery and equipment; (2) the change in cash flow from operating activities; and (3) the difference of change in revenue (ΔREV) and change in net receivable accounts (ΔREC).
Originality/value
This is the first investigation in the Iranian Islamic banking system. The research contributes to the Iranian Islamic banking system literature on the implements of EM, which could be appealed to in the context of developing countries like Iran. Finally, this study highlights the different EM capabilities in Islamic banking systems similar to the Iranian banking arrangement.
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Emissions produced by oceangoing vessels not only negatively affect the environment but also may deteriorate health of living organisms. Several regulations were released by the…
Abstract
Purpose
Emissions produced by oceangoing vessels not only negatively affect the environment but also may deteriorate health of living organisms. Several regulations were released by the International Maritime Organization (IMO) to alleviate negative externalities from maritime transportation. Certain polluted areas were designated as “Emission Control Areas” (ECAs). However, IMO did not enforce any restrictions on the actual quantity of emissions that could be produced within ECAs. This paper aims to perform a comprehensive assessment of advantages and disadvantages from introducing restrictions on the emissions produced within ECAs. Two mixed-integer non-linear mathematical programs are presented to model the existing IMO regulations and an alternative policy, which along with the established IMO requirements also enforces restrictions on the quantity of emissions produced within ECAs. A set of linearization techniques are applied to linearize both models, which are further solved using the dynamic secant approximation procedure. Numerical experiments demonstrate that introduction of emission restrictions within ECAs can significantly reduce pollution levels but may incur increasing route service cost for the liner shipping company.
Design/methodology/approach
Two mixed-integer non-linear mathematical programs are presented to model the existing IMO regulations and an alternative policy, which along with the established IMO requirements also enforces restrictions on the quantity of emissions produced within ECAs. A set of linearization techniques are applied to linearize both models, which are further solved using the dynamic secant approximation procedure.
Findings
Numerical experiments were conducted for the French Asia Line 3 route, served by CMA CGM liner shipping company and passing through ECAs with sulfur oxide control. It was found that introduction of emission restrictions reduced the quantity of sulfur dioxide emissions produced by 40.4 per cent. In the meantime, emission restrictions required the liner shipping company to decrease the vessel sailing speed not only at voyage legs within ECAs but also at the adjacent voyage legs, which increased the total vessel turnaround time and in turn increased the total route service cost by 7.8 per cent.
Research limitations/implications
This study does not capture uncertainty in liner shipping operations.
Practical implications
The developed mathematical model can serve as an efficient practical tool for liner shipping companies in developing green vessel schedules, enhancing energy efficiency and improving environmental sustainability.
Originality/value
Researchers and practitioners seek for new mathematical models and environmental policies that may alleviate pollution from oceangoing vessels and improve energy efficiency. This study proposes two novel mathematical models for the green vessel scheduling problem in a liner shipping route with ECAs. The first model is based on the existing IMO regulations, whereas the second one along with the established IMO requirements enforces emission restrictions within ECAs. Extensive numerical experiments are performed to assess advantages and disadvantages from introducing emission restrictions within ECAs.
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Gas flaring is a crucial issue in the energy transition era, as it is a major source of carbon emissions in the gas production chain. The reduction of flaring could potentially…
Abstract
Gas flaring is a crucial issue in the energy transition era, as it is a major source of carbon emissions in the gas production chain. The reduction of flaring could potentially contribute to eliminating energy poverty, as the amount of gas currently flared each year could power the entirety of Sub-Saharan Africa. Despite Iran's zero-clearing target, the country ranks third in gas flaring globally, with 12% share. This case study examines the reasons behind gas flaring in Iran within the Sustainable Development Goals framework. The study reveals that while technological and economic difficulties were the primary obstacles in early years, policy malfunctioning has demonstrated the wicked nature of a sustainability problem in recent years. The traditional top-down institutional structure has led to interference from public agencies and Operations and Maintenance (O&M) companies, complicating decision-making. The lack of precise criteria for finding best solutions, as well as the absence of appropriate control and monitoring mechanisms, has further paralyzed efforts to reduce flaring. The intensification of conflict between interest groups has added complexity to the situation. The issue has been further complicated at higher levels due to economic sanctions. This study offers practical solutions for reducing flaring in Iran based on global experiences and policies and programs of some selected countries. These suggestions address the policy, technological, and institutional aspects of the problem and aim to pave the way for sustainable and responsible energy transition. By reducing gas flaring, Iran can contribute to global efforts to mitigate climate change and create a more equitable and sustainable energy future.
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Financial problems of football clubs during economic crises (such as COVID-19 pandemic) highlight the necessity of achieving economic sustainability. In addition, the economic…
Abstract
Purpose
Financial problems of football clubs during economic crises (such as COVID-19 pandemic) highlight the necessity of achieving economic sustainability. In addition, the economic sustainability of football clubs is accepted as a principle of the development of sports business. Therefore, it is reasonable to conduct a study with the aim of examining economic sustainability in the field of sports club management.
Design/methodology/approach
The present study adopted a qualitative approach to research and used semi-structured interviews in order to develop a framework for the economic sustainability of football clubs. A total of 13 members of football clubs in the Iranian premier league participated in this study.
Findings
The findings highlighted the fact that a number of factors, including media and social networks, entrepreneurship and development of club business, commercialization of the club, privatization, investment and ownership, strategic communication plan, financial management and management instability, promoted the economic sustainability of football clubs and improved their financial performance.
Originality/value
This study highlighted the importance of the changes in the structure of football clubs and the strategic plans for promoting entrepreneurship and commercialization. Moreover, it underlined the major role of the environmental and management components of football clubs in their financial sustainability.
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Ridha Mazouzi, Ahmed Kellaci and Abdelkader Karas
– This paper aims to study the effect of piston skirt design parameters on the dynamic characteristics of a piston–cylinder contact.
Abstract
Purpose
This paper aims to study the effect of piston skirt design parameters on the dynamic characteristics of a piston–cylinder contact.
Design/methodology/pproach
This paper focuses on an analysis of the piston dynamic response. The oil-film pressure and the structural deformation were approximated, respectively, by finite difference method and finite element method.
Findings
The results show that the design parameters such as clearance, offset and the axial location of piston pin have a great influence on the dynamics of the piston and hence on the piston slap phenomenon and the frictional power loss.
Originality/value
All the results mainly focus on the slap noise of the engine and can be used in the piston–liner development at the development of the engine.
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Keywords
S. Sarkar and S. Chandra
Recent societal interest in healthful foods has led to the development of functional dairy products that basically provide health benefits in addition to their fundamental…
Abstract
Purpose
Recent societal interest in healthful foods has led to the development of functional dairy products that basically provide health benefits in addition to their fundamental nutrients. Yoghurt being most popular fermented milk product due to its healthy image can be an excellent carrier for probiotics. Functional properties of yoghurt can be enhanced with the inclusion of functional ingredients such as probiotics and its conjugate application with prebiotics may be advantageous as it favors probiotic growth. Nutritional and medicinal value of honey coupled with presence of oligosaccharides has projected honey as a functional additive in yoghurt.
Design/methodology/approach
Attempt has been made to review the literature on the biochemical activities of yoghurt cultures and probiotics in presence of honey. Both review and research papers related to biochemical activities and functional properties of yoghurt cultures and probiotics in presence of honey and their health benefits published in diverse journals under Pub Med and Science Direct have been considered. Keywords used for data search included functional foods, yoghurt, probiotic, health benefits, honey, etc.
Findings
Functional properties of yoghurt can be further enhanced with the inclusion of probiotic cultures and honey. Honey can be safely used in association with different probiotic cultures during yoghurt manufacture for augmenting functional properties of yoghurt to extend health benefits. Honey may not be equally a suitable matrix for all yoghurt cultures or probiotic cultures.
Research limitations/implications
Reviewed literature indicated that limited research on animal or human feeding trials with honey containing yoghurt has been done. Clinical trials with honey containing yoghurt are emerging prior to its marketing as functional food.
Originality/value
Application of honey as a functional additive during the manufacture of probiotic yoghurt is suggested to extend the functional properties of normal yoghurt.
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Orhan Uludag, Dokun Oluwajana and Emmanuel Ekanem
The purpose of this article is to examine the factors that influence turnover intentions by examining the effect of congruent internal marketing on turnover intentions among…
Abstract
Purpose
The purpose of this article is to examine the factors that influence turnover intentions by examining the effect of congruent internal marketing on turnover intentions among restaurant employees in North Cyprus. The study also integrates work immersion variables to factor in the reduction of turnover intentions of employees.
Design/methodology/approach
The quantitative study employed questionnaires distributed to 150 participants at various restaurants throughout Northern Cyprus. The study's results were utilized to examine the effect of several components of congruent internal marketing on turnover intention, including work engagement, job satisfaction, coaching and employee development structural equation modelling.
Findings
The study confirmed a positive and significant relationship between congruent internal marketing and turnover intentions, work engagement, job satisfaction and management coaching. It is evident that congruent internal marketing is contingent on elements that minimize employees' turnover intentions. Given the increasing pace of voluntary and involuntary turnover, it is critical to provide concise research for both present and future analysis.
Research limitations/implications
The data collection for this study was limited to the cities of Northern Cyprus, as it focuses on small business operations. Additionally, the researchers were able to collect data from only 30 establishments during the pandemic. Quintessential implication of the current study posits how internal marketing efforts coupled with coaching and engagement practises helps to reduce turnover.
Originality/value
Recently, turnover intention has emerged as a major source of concern for business and organizational survivors, particularly during this COVID-19 pandemic. This had a detrimental effect on local and international enterprises, health, education, hotels and tourism. In essence, the current crisis has had a profound effect on both internal marketing and employee turnover intentions. Drawn from the POS and SET theories, the current study develops and tests parsimonious model in fostering avenues to reduce turnover.