bluuebunny/crossref_metadata_2025 huggingface dataset:
Global sourcing processes in the Italian agricultural breweries
Authors: Francioni Barbara , Curina Ilaria , Masili Giorgia , Viganò Elena
Published: August 2019

Purpose

The purpose of this paper is to deepen the global sourcing (GS) phenomenon from the acquiring firms’ viewpoint by analyzing the Italian craft beer sector. This industry has been chosen since it represents a perfect context for the GS activities’ analysis. Notably, different features characterizing this business force Italian breweries to turn to suppliers, located outside their national borders, to purchase the necessary raw materials.

Design/methodology/approach

The paper adopts a multiple case study concerning four Italian agricultural breweries located in the Marche region.

Findings

Results identify the main motivations, drivers, risks, obstacles and costs related to the adoption of the GS activities, by corroborating a positive interconnection with the GS literature findings.

Research limitations/implications

The main limitation is related to the fact that the study is based on a survey carried out on a specific region and product category. Therefore, future research could analyze other Italian regions and/or different types of products.

Practical implications

The study identifies different gaps characterizing the Italian supply market. Managerially these gaps can be converted into critical opportunities for the future development of the entire Italian brewing sector. Moreover, the results detect several actions the investigated breweries will seek to develop in the near future, which could strongly support the growth of the Italian beer sector.

Originality/value

The study deepens a topic little explored by literature, especially with reference to the supply activities of the Italian agricultural breweries.
Revisiting the numerical solution of stochastic differential equations
Authors: Hurn Stan , Lindsay Kenneth A. , Xu Lina
Published: August 2019

Purpose

The purpose of this paper is to revisit the numerical solutions of stochastic differential equations (SDEs). An important drawback when integrating SDEs numerically is the number of steps required to attain acceptable accuracy of convergence to the true solution.

Design/methodology/approach

This paper develops a bias reducing method based loosely on extrapolation.

Findings

The method is seen to perform acceptably well and for realistic steps sizes provides improved accuracy at no significant additional computational cost. In addition, the optimal step size of the bias reduction methods is shown to be consistent with theoretical analysis.

Originality/value

Overall, there is evidence to suggest that the proposed method is a viable, easy to implement competitor for other commonly used numerical schemes.
Dealing with multiple hazards and threats on cultural heritage sites: an assessment of 80 case studies
Authors: Bosher Lee , Kim Dowon , Okubo Takeyuki , Chmutina Ksenia , Jigyasu Rohit
Published: August 2019

Purpose

Cultural heritage (CH) sites are not only important components of a country’s identity but can also be important drivers of tourism. However, an increasing number of extreme events associated with the impacts of climate change, natural hazards and human-induced threats are posing significant problems in conserving and managing CH worldwide. Consequently, improved climate change adaptation and enhanced hazard/threat mitigation strategies have become critical (but to-date under-researched) considerations. The purpose of this paper is to identify the key hazards and threats to CH sites, the most common types of risks to CH and the strategies being adopted to mitigate or even eradicate those risks.

Design/methodology/approach

This paper reviews 80 CH case studies from around the world, which have been presented at a UNESCO International Training Course between 2006 and 2016. The case studies cover 45 different countries and provide practical insights into the key challenges being encountered in a variety of “at risk” locations.

Findings

The analysis assesses the key natural hazards and human-induced threats to the sites, an overview of the typical impacts to the tangible components of heritage and identifies the types of strategies being adopted to mitigate the risks, some of which could be transferred across cultural and geographical contexts.

Originality/value

The paper provides a wealth of useful information related to how challenges faced by CH sites might be addressed in the future.
Social capacities in fostering water supply resilience in Vanuatu
Authors: Balaei Behrooz , Wilkinson Suzanne , Potangaroa Regan
Published: August 2019

Purpose

In March 2015 Vanuatu experienced Tropical Cyclone (TC) Pam, a category 5 cyclone with estimated wind speeds of 250 kph and one of the worst disasters in Vanuatu’s history. Prior to the cyclone, one-third of water in Vanuatu was collected by means of rainwater harvesting systems; around one quarter of these systems were damaged due to the cyclone and no longer functional. The purpose of this paper is to investigate social and organisational complexities in the resilience of water systems in Vanuatu following TC Pam, focussing on rural areas.

Design/methodology/approach

The resilience of water supply in rural responses to TC Pam was examined using the three following approaches: review of existing documents, a case study of a village and interviews with specialist local and international non-governmental organisation staff working in Vanuatu.

Findings

People’s reaction to the cyclone and its consequences at the village or community level in Vanuatu was impressive. The capacity of the locals, their involvement in the community and the low level of violence and high level of trust within society contributed to a quicker water supply restoration than expected. Despite severe shortages of water in some areas due to physical vulnerability of the system, the communities dealt with the issue calmly and the country did not experience any chaos due to water shortages.

Originality/value

The research results provide a benchmark for planners and decision makers in the South Pacific based on the social, organisational and technical dimensions of rural areas in Vanuatu that can be generalised to other countries in the region. This study also recommends potential tools to improve assessment of the role of social capital in fostering water supply resilience.
Influence mechanism of job satisfaction and positive affect on knowledge sharing among project members
Authors: Sang Linhua , Xia Dongchun , Ni Guodong , Cui Qingbin , Wang Jianping , Wang Wenshun
Published: August 2019

Purpose

The purpose of this paper is to explore the influence mechanism of job satisfaction and positive affect on knowledge sharing among project members in Chinese construction industry, and test the moderating role of organizational commitment between them in order to find a new approach from the perspective of psychology to improve the knowledge sharing performance within project management organizations in China constantly.

Design/methodology/approach

An empirical study was used based on confirmatory factor analysis and hierarchical regression analysis with a sample of 540 project members from 80 project management organizations in China.

Findings

Research results showed that job satisfaction and positive affect of project members both have a significant positive impact on knowledge sharing; organizational commitment could moderate the influence of job satisfaction and positive affect on knowledge sharing among project members partially within the Chinese context.

Research limitations/implications

A questionnaire study from China only represents the relationship and regular pattern within a shorter time interval in the Chinese context. It is necessary to continue to implement a longitudinal study in a relatively long period in future research.

Practical implications

Knowledge sharing among project members can be enhanced through improving job satisfaction and positive affect, and strengthening project members’ organizational commitment can amplify the influence effect of job satisfaction and positive affect on knowledge sharing.

Originality/value

This paper clarifies the direct influence mechanism of project members’ job satisfaction and positive affect on explicit knowledge sharing (EKS) and tacit knowledge sharing (TKS), and further tests the partial moderating effect of organizational commitment on the influence relationship of job satisfaction and positive affect on EKS and TKS.
Henry Caldwell Cook, creativity and democratic learning
Authors: Howlett John
Published: August 2019

Purpose

The purpose of this paper is to re-examine the life and work of a forgotten progressive educator – (Henry) Caldwell Cook who was an English and drama teacher at the Perse School in Cambridge, UK. By looking at his key work The Play Way (1917) as well as the small number of his other writings it further seeks to explain the distinctiveness of his thinking in comparison to his contemporaries with a particular focus upon educational democracy.

Design/methodology/approach

The work was constructed primarily through a reading of Cook’s published output but also archival study, specifically by examining the archives held within the Perse School itself. These consisted of rare copies of Cook’s written works – unused by previous scholars – and materials relating to Cook’s work in the school such as his theatre designs and a full collection of contemporary newspaper reviews.

Findings

The paper contends that Cook’s understanding of democracy and democratic education was different to that of other early twentieth century progressives such as Edmond Holmes and Harriet Finlay-Johnson. By so doing it links him to the ideas of progressivism emergent in America from John Dewey et al. who were more concerned with democratic ways of thinking. It therefore not only serves to resurrect Cook as a figure of importance but also offers new insights into early twentieth century progressivism.

Originality/value

The value of the paper is that it expands what little previous writing there has been on Cook as well as using unused materials. It also seeks to use a biographical approach to start to better delineate progressive educators of the past thereby moving away from seeing them as a homogenous grouping.
Numerical simulation of the fluid flow and heat transfer characteristics of microchannel heat exchangers with different reentrant cavities
Authors: Pan Minqiang , Wang Hongqing , Zhong Yujian , Fang Tianyu , Zhong Xineng
Published: August 2019

Purpose

With the increasing heat dissipation of electronic devices, the cooling demand of electronic products is increasing gradually. A water-cooled microchannel heat exchanger is an effective cooling technology for electronic equipment. The structure of a microchannel has great impact on the heat transfer performance of a microchannel heat exchanger. The purpose of this paper is to analyze and compare the fluid flow and heat transfer characteristic of a microchannel heat exchanger with different reentrant cavities.

Design/methodology/approach

The three-dimensional steady, laminar developing flow and conjugate heat transfer governing equations of a plate microchannel heat exchanger are solved using the finite volume method.

Findings

At the flow rate range studied in this paper, the microchannel heat exchangers with reentrant cavities present better heat transfer performance and smaller pressure drop. A microchannel heat exchanger with trapezoidal-shaped cavities has best heat transfer performance, and a microchannel heat exchanger with fan-shaped cavities has the smallest pressure drop.

Research limitations/implications

The fluid is incompressible and the inlet temperature is constant.

Practical implications

It is an effective way to enhance heat transfer and reduce pressure drop by adding cavities in microchannels and the data will be helpful as guidelines in the selection of reentrant cavities.

Originality/value

This paper provides the pressure drop and heat transfer performance analysis of microchannel heat exchangers with various reentrant cavities, which can provide reference for heat transfer augmentation of an existing microchannel heat exchanger in a thermal design.
Numerical investigation of natural convection in an inclined porous enclosure using non-Darcian flow model
Authors: Mohamed Ibrahim Atiya
Published: August 2019

Purpose

A thoroughly literature review reveals that considerable attention have been given only to the two common cases, i.e. enclosure heated from below and heated from the side. For the inclined layer, on the other hand, the numbers of investigations are relatively small. Therefore, this paper aims to investigate the natural convective heat transfer in an inclined porous cavity using non-Darcian flow model, including the boundary surface and inertia effects.

Design/methodology/approach

The flow characteristics have been assumed to be two-dimensional, steady, incompressible flow, whereas the properties of porous media have been considered to be homogeneous and isotropic properties solid matrix. The non-Darcian flow model, including the boundary surface and inertia effects, has been numerically solved using finite difference method.

Findings

The initiation of multicellular flow and counter-rotating cell are strongly dependent on the aspect ratio A and the inclination angle θ. The orientation of the porous cavity, for a given Ra*, Fs/Pr* and A, has a significant effect on the heat transfer rate. The results also indicated that A has a dominant effect on the Nusselt number. The Nusselt number is strongly dependent on the Ra*, Fs/Pr*, A and θ. Therefore, operating conditions and geometry of the porous enclosure are required to be properly designed to achieve the desired objective.

Originality/value

The developed model can reveal the non-Darcian effects on the fluid flow and heat transfer in inclined porous media under natural convection case.
Interactions between adaptive time-integrators and adaptive meshing in a monolithic FEM solver
Authors: Muller Etienne , Pelletier Dominique , Garon André
Published: August 2019

Purpose

This paper aims to focus on characterization of interactions between hp-adaptive time-integrators based on backward differentiation formulas (BDF) and adaptive meshing based on Zhu and Zienkiewicz error estimation approach. If mesh adaptation only occurs at user-supplied times and results in a completely new mesh, it is necessary to stop the time-integration at these same times. In these conditions, one challenge is to find an efficient and reliable way to restart the time-integration. The authors investigate what impact grid-to-grid interpolation errors have on the relaunch of the computation.

Design/methodology/approach

Two restart strategies of the time-integrator were used: one based on resetting the time-step size h and time-integrator order p to default values (used in the initial startup phase), and another designed to restart with the time-step size h and order p used by the solver prior to remeshing. The authors also investigate the benefits of quadratically interpolate the solution on the new mesh. Both restart strategies were used to solve laminar incompressible Navier–Stokes and the Unsteady Reynolds Averaged Naviers-Stokes (URANS) equations.

Findings

The adaptive features of our time-integrators are excellent tools to quantify errors arising from the data transfer between two grids. The second restart strategy proved to be advantageous only if a quadratic grid-to-grid interpolation is used. Results for turbulent flows also proved that some precautions must be taken to ensure grid convergence at any time of the simulation. Mesh adaptation, if poorly performed, can indeed lead to losing grid convergence in critical regions of the flow.

Originality/value

This study exhibits the benefits and difficulty of assessing both spatial error estimates and local error estimates to enhance the efficiency of unsteady computations.
Vector eigenfunction expansion in the integral transform solution of transient natural convection
Authors: Lisboa Kleber Marques , Su Jian , Cotta Renato M.
Published: August 2019

Purpose

The purpose of this work is to revisit the integral transform solution of transient natural convection in differentially heated cavities considering a novel vector eigenfunction expansion for handling the Navier-Stokes equations on the primitive variables formulation.

Design/methodology/approach

The proposed expansion base automatically satisfies the continuity equation and, upon integral transformation, eliminates the pressure field and reduces the momentum conservation equations to a single set of ordinary differential equations for the transformed time-variable potentials. The resulting eigenvalue problem for the velocity field expansion is readily solved by the integral transform method itself, while a traditional Sturm–Liouville base is chosen for expanding the temperature field. The coupled transformed initial value problem is numerically solved with a well-established solver based on a backward differentiation scheme.

Findings

A thorough convergence analysis is undertaken, in terms of truncation orders of the expansions for the vector eigenfunction and for the velocity and temperature fields. Finally, numerical results for selected quantities are critically compared to available benchmarks in both steady and transient states, and the overall physical behavior of the transient solution is examined for further verification.

Originality/value

A novel vector eigenfunction expansion is proposed for the integral transform solution of the Navier–Stokes equations in transient regime. The new physically inspired eigenvalue problem with the associated integmaral transformation fully shares the advantages of the previously obtained integral transform solutions based on the streamfunction-only formulation of the Navier–Stokes equations, while offering a direct and formal extension to three-dimensional flows.
Investigation of heat transfer and fluid flow behaviors of CuO/(60:40)% ethylene glycol and water nanofluid through a serpentine milichannel heat exchanger
Authors: Toghraie Davood , Hekmatifar Maboud , Jolfaei Niyusha Adavoodi
Published: August 2019

Purpose

This paper aims to investigate the three-dimensional (3D) numerical simulations, based on the Navier–Stokes equations and the energy equation. Forced convection of a mixture of (60:40) percent ethylene glycol and water, was used as the base fluid and CuO nanoparticles, through a serpentine minichannel.

Design/methodology/approach

In this simulation, a serpentine mini-channel heat exchanger was simulated. The fluid studied in this simulation was composed of a mixture of (60:40) per cent ethylene glycol and water, was used as the base fluid and CuO nanoparticles. Four slabs and three serpentines were used in this study. The serpentine section is connected to the slab. Three equidistant circular channels (1 mm in diameter) were implemented inside the slab.

Findings

Results show that nanoparticles increase the fluid pressure drop and by changing volume fraction of nanoparticles from 0 to 1 per cent, the pressure drop of nanofluids increases between 42and 47 per cent, for Reynolds numbers from 100 to 500. The existence of serpentine bend in the minichannel heat exchanger causes the heat transfer rate to increase. Increase the volume fraction of nanoparticles reduces the fluid temperature at the outlet of the heat exchanger. The numerical results show that in Re = 500, at the beginning of the last slab in middle channel by changing volume fraction of nanoparticles from 0 to 2 per cent, local Nusselt number 57.40 per cent increase. The existence of the serpentine bend causes the heat transfer rate to increase.

Originality/value

Forced convection of a mixture of (60:40) per cent ethylene glycol and water by using of 3D numerical simulations, based on the Navier–Stokes equations.
Unsteady CHT analysis of a solid state, sensible heat storage for PHES system
Authors: Ziegler Bartosz , Mosiężny Jędrzej , Czyżewski Paweł
Published: August 2019

Purpose

The aim of this study is to identify key factors limiting efficiency of pumped heat energy storage systems and determine some general features of transient behavior of solid state, sensible heat storages. Moreover, it aimed at establishing a feasible approach to transient conjugate heat transfer (CHT) analyses for such applications.

Design/methodology/approach

A zero-dimensional analytical model is used to determine the system efficiency sensitivity to efficiency of its components. Analysis of argon gas flow in an exemplary configuration of layered bed thermal energy storage is presented. The analysis incorporates a unsteady reynolds averaged navier stokes model with conjugate heat transfer between gas and solid storage core.

Findings

It is established that exergetic efficiency of the heat storage is one of the key factors for the system’s overall performance. Three full cycles of storage charging and discharging having 17 h physical time in total are simulated, with calculation of exergetic efficiency for each of the cycles. From standpoint of the system efficiency, it is concluded that the presented heat storage kind has limited exergetic efficiency because of severe temperature drop at the solid–fluid interface in comparison to granular kind of heat storage devices. From the methodological standpoint, it is concluded that calculating the exergetic efficiency of the heat storage by direct computational fluid dynamics (CFD) analysis requires significant amount of walltime and computational resources.

Originality/value

The paper presents unconventional approach to using standard CFD tools by exploiting numerical diffusion to numerically suppress high-frequency solution oscillations. This strategy grants that the analysis, otherwise requiring impractically long computation walltime, is completed within a practical time.
MHD flow and heat transfer over a permeable stretching/shrinking sheet in a hybrid nanofluid with a convective boundary condition
Authors: Aly Emad H. , Pop Ioan
Published: August 2019

Purpose

The purpose of this study is to present both effective analytic and numerical solutions to MHD flow and heat transfer past a permeable stretching/shrinking sheet in a hybrid nanofluid with suction/injection and convective boundary conditions. Water (base fluid) nanoparticles of alumina and copper were considered as a hybrid nanofluid.

Design/methodology/approach

Proper-similarity variables were applied to transform the system of partial differential equations into a system of ordinary (similarity) differential equations. Exact analytical solutions were then presented for the dimensionless stream and temperature functions. Further, the authors introduce a very nice analytic and numerical solutions for both small and large values of the magnetic parameter.

Findings

It was found that no/unique/two equal/dual physical solutions exist for the investigated boundary value problem. The physically realizable practice of these solutions depends on the range of the governing parameters. For a stretching/shrinking sheet, it was deduced that a hybrid nanofluid works as a cooler on increasing some of the investigated parameters. Moreover, in the case of a shrinking sheet, the first solutions of hybrid nanofluid are stable and physically realizable rather than the nanofluid, while those of the second solutions are not for both hybrid nanofluid and nanofluid.

Originality/value

The present results for the hybrid nanofluids are new and original, as they successfully extend (generalize) the problems previously considered by different authors for the case of nanofluids.
Earthquake preparedness in higher education structures
Authors: Sohrabizadeh Sanaz , Jahangiri Katayoun , Shafiei Moghaddam Parvin , Safarpour Hamid , Eskandari Zahra
Published: August 2019

Purpose

Universities and higher education institutes are key pillars of all societies, as the result of their important roles in education, research and training of human resources. Nevertheless, similar to other social structures, universities need to be prepared for natural disasters. This study aims to measure and analyze the level of earthquake preparedness in a higher education institute in Tehran, Iran.

Design/methodology/approach

This cross-sectional study was conducted in 2017 in a higher education institute through three stages of tool, namely, development, preparedness evaluation and strength–weakness–opportunity–threat analysis. The valid and reliable tool was applied for assessment of college preparedness through a field survey. Factors affecting the obtained level of preparedness were categorized into internal (strengths and weaknesses) and external (opportunities and threats) factors to decide on an appropriate strategy for promoting the preparedness level.

Findings

Content validity index and content validity ratio of the tool were 88 and 98.85 per cent, respectively. The reliability of the tool was measured to be 98 per cent using the kappa coefficient. The level of preparedness was estimated to be weak. The final value of the matrix of internal and external factors was higher than average, which can be improved in the form of strength–opportunity strategy.

Originality/value

It is highly suggested to allocate a specific budget for improvement and evaluation of preparedness measures in all parts of education systems. In addition, making the preparedness measures as the mandatory duty for educational structures can be considered by decision-makers and managers at the national and local levels.
Examining empathy and responsiveness in a high-service context
Authors: Murray John , Elms Jonathan , Curran Mike
Published: August 2019

Purpose

The delivery of high-quality service is critical for the success, or otherwise, of many retailers. However, despite calls to examine the efficacy of the dimensions of quality in different service contexts, it is still largely unknown how dimensions such as empathy and responsiveness interact to determine consumers’ perceptions of service quality. Recent research also suggests that loyalty strategies may not be equally effective across all services contexts. The purpose of this paper is, therefore, to contribute to the service quality literature by providing a better understanding of how marketing strategy is effectively operationalised into improved services and consumer loyalty in physical stores.

Design/methodology/approach

Consumers from ten stores of one pharmacy retailer were surveyed. The retailer provides high-service levels at present and is examining ways of how to deliver a better quality service to its prescription and non-prescription account holding consumers. By examining consumer loyalties in high-services contexts in pharmacy retailing, the authors also propose how retailers in other sectors can learn to operationalise services quality into increased loyalties.

Findings

The findings of this research demonstrate that empathy, rather than responsiveness, is more important in a high service delivery context such as pharmacy retailing. Non-prescription account holding and non-store loyal consumers also do not perceive that high service responsiveness is compromised by offering of a highly empathetic (and possibly more time consuming) service by the retailer.

Originality/value

These findings present specific implications for retailers in the development of consumer loyalty in a high-service context. Moreover, the findings of this research also illustrate how retailers can more effectively target their investments in service design to enhance service quality and consumer loyalty.
Influence of culture, price perception and mall promotions on Indian consumers’ commitment towards malls
Authors: Khare Arpita , Sarkar Subhro , Patel Shivan Sanjay
Published: August 2019

Purpose

The exponential growth of organised retail has led to competition among mall retailers with the use of promotions to increase traffic to the stores. The footfall in the malls is dependent on the sales generated by various retail stores located in the malls. The current research analyses the role of promotions used by the retailers located in Indian malls in improving consumers’ commitment towards the mall. The purpose of this paper is to examine the influence of culture, personality traits like value consciousness, price consciousness and coupon proneness, and promotions used by retailers in malls on consumers’ commitment towards the malls.

Design/methodology/approach

Eight malls from six cities were selected by popularity and footfall. Mall-intercept technique along with systematic sampling was used to collect data from 453 mall shoppers using a self-administered questionnaire. Structural equation modelling was used to analyse the data.

Findings

Retailer promotions were categorised under discounts, promotional offers and loyalty cards. The findings suggest that cultural values of long-term orientation and masculinity have an impact on consumers’ perceptions towards discounts, promotional offers and loyalty programmes. Different promotional strategies had varied responses from consumers.

Practical implications

Mall retailers can use the findings to design promotions according to the cultural values of masculinity and long-term orientation. Loyalty programmes can symbolise status and long-term relationship with retailer. Commitment towards retailers and consequently malls could be enhanced through discounts and promotional offers. Different promotional strategies can be used to target price-conscious consumers and increase footfall in the stores. The linkages between cultural dimensions and promotional techniques would be helpful in targeting different consumer groups by designing promotions which are in line with cultural values.

Originality/value

The research extends the existing literature on mall retailing by analysing the importance of cultural dimensions on sales promotions strategies used by retailers in malls. The study establishes that perceptions towards retailer promotions differ across cultures. Different promotions offered by retailers generate varied response from consumers across different cultures which would influence their commitment towards malls.
Augmented reality in retailing: a review of features, applications and value
Authors: Caboni Federica , Hagberg Johan
Published: August 2019

Purpose

The purpose of this paper is to review augmented reality (AR) within retailing by identifying, outlining and discussing definitions of AR, applications of AR that are relevant for retailers, and the value AR provides for retailers and consumers.

Design/methodology/approach

The paper is based on a review of AR research within the business-oriented literature and an overview of current AR applications within retailing.

Findings

Based on previous literature, the paper presents a synthesised definition of AR, its main elements and how it differs from virtual reality. Furthermore, it reviews and provides examples of three major types of AR applications in retailing: online web based, in-store and mobile app based. Finally, the paper identifies the specific value that AR applications may provide for consumers and retailers.

Originality/value

The paper contributes an overview of a relatively recent but rapidly emerging theme that has not yet been sufficiently reviewed. It outlines areas for further research and thus provides value for both researchers and retail practitioners.
Existentialism and tourism: new research avenues
Authors: Kirillova Ksenia
Published: August 2019

Purpose

The purpose of this paper is to pave avenues and stimulate further research on the intersection of existentialism and tourism. This is done by presenting the overview of the topical areas that have greatly contributed to existentialism and connecting them to contemporary tourism issues.

Design/methodology/approach

The paper is structured by topical areas that received significant treatment from existentialists and are deemed relevant to the contemporary tourism research and practice. It starts with the discussion of authenticity and anxiety and then proceeds to the issues of alienation, death and mortality. It ends with a review of the sections on freedom and religion. In the conclusion, broader issues related to existentialism and (urban) tourism are discussed.

Findings

Aside from existential authenticity/anxiety and alienation, other existential categories (mortality, death, freedom and faith) are employed in a manner that is limited, superficial or not employed at all. The potential for tourism research lies in shifting the focus from a common tourist to special populations and hosting communities and service providers, as well as in investigating existential dimensions of city experiences of both tourists and residents.

Originality/value

This is the first paper to exclusively and explicitly discuss the links between existential philosophical categories and tourism research. It is hoped that tourism scholars extend these ideas and assess their relevance across non-European and culturally and religiously diverse contexts.
Publishing Islamic economics and finance research: polemics, perceptions and prospects
Authors: Ali Syed Nazim , AlQuradaghi Bahnaz Ali
Published: August 2019

Purpose

The purpose of this study is to examine the academic polemics, stakeholder perceptions and publishing prospects for Islamic economics and finance (IEF) research.

Design/methodology/approach

This study adopts both quantitative and qualitative methods with a view to understanding the aforementioned aspects of published IEF research. The main part of the study constitutes searching through selected databases to identify leading journals and publishing outlets for IEF research. To supplement and support the main part, the study also conducted a survey of IEF experts and interviewed major stakeholders with a view to understanding the current trends and future perspectives of IEF research. The study also attempts to bring to the fore less explored aspects of IEF research, which has the potential of shaping the future trends in both the academia and the industry.

Findings

Apart from challenges such as inadequate funding opportunities, differences in worldview, among others, the field is still in need of improvement in the quality of research despite the increasing interest in IEF research and the level of research output over the past three decades. The study also finds that IEF has yet to establish core IEF journals reporting the research findings, which creates a perception among IEF researchers that non-IEF journals have a greater academic standing than IEF journals.

Research limitations/implications

It must be highlighted that the study has been limited to specific well-known research databases; therefore, future studies may explore other leading databases such as Web of Science and examine the quality of IEF research published in journals indexed in such databases.

Practical implications

It is expected that mainstream journals in economics and finance will publish more of IEF research, which has been facilitated recently by the increasing trends of special issues of such journals dedicated to IEF research.

Originality/value

The study brings to the fore a less explored aspect of Islamic economics and finance, which has the potential of shaping future trends in both the academia and the industry.
Citizen engagement in the “post-truth era”
Authors: Andrei Andreia Gabriela , Zait Adriana , Stoian Claudia , Tugulea Oana , Manolica Adriana
Published: August 2019

Purpose

The purpose of this study is to analyze citizen engagement and to explain the underlying mechanism that makes well-intended people to act as disinformation amplifiers in the online space. The study offers new insights to be used by knowledge management for improving society’s potential to downsize the impact of disinformation that puts both knowledge system and social trust (ST) under high pressure.

Design/methodology/approach

The study proposes an integrative research model to explain how ST and conspiracy mentality (CM) are influencing citizen engagement in public life through different forms of action that is specific to offline or online spaces. The research model and its nine hypotheses are tested based on a survey for data collection and partial least squares method for data analysis.

Findings

The study finds that both online and offline actions are mediating the positive effect of ST on citizen engagement. Yet, CM has a high impact on online actions, and it exerts a significant indirect influence on citizen engagement in this manner.

Originality/value

Revealing the mediator role of online actions in the relationship between CM and civic engagement, the paper brings novel insights on disinformation spreading. The study explains how citizen engagement can sometimes be turned against social well-being because those prone to belief in conspiracies are the perfect targets of deceivers seeking for disinformation amplifiers in the online environment.
International risk spillover in sovereign credit markets: an empirical analysis
Authors: Sabkha Saker , de Peretti Christian , Mezzez Hmaied Dorra
Published: August 2019

Purpose

The purpose of this paper is to study the volatility spillover among 33 worldwide sovereign Credit Default Swap (CDS) markets and their underlying bond markets.

Design/methodology/approach

In contrast to prior studies, the authors incorporate heteroscedasticity, asymmetric leverage effects and long-memory features of sovereign credit spreads simultaneously through a bivariate FIEGARCH model and a Bayesian cointegrated vector autoregressive model.

Findings

Similar to the literature, the findings confirm that strong evidence of credit risk spillover between credit markets is accentuated during two recent crisis periods. However, the country-by-country analysis indicates that countries exhibit different sensitivity levels and divergent reactions to financial shocks. Further, the authors show that the bidirectional interrelationship evolves over time and across countries emphasizing the necessity of time-varying national regulatory policies and trading positions.

Originality/value

Based on a large data set that covers the recent two financial crises and using complex methods, the work focuses on sovereign tensions that have repercussions on banks’ solvency and refinancing conditions. Yet, the study is a hot topic since that during crisis periods in the financial markets, direct and indirect interconnections increase between sovereign risk and banking risk. Using new econometric approaches, the results show that each country exhibits a different behavior toward the credit risk which is relevant to both portfolio managers and policy makers. The time-varying spillover effects detected between markets are an accurate indicator of financial stability, allowing policy makers to put in place personalized economic policies. On the other hand, markets’ participants could take advantages of the results by adjusting their trading and hedging positions on the dynamic co-movements. The findings reveal, as well, that the sovereign crisis has more weakened the global financial and banking system than the subprime crisis. The authors previously tackled the cross-country contagion phenomenon in the CDS markets, and this manuscript builds on the prior study to enhance the obtained results.
The impact of SHRM on the psychological contract of employees
Authors: Roehl Maximilian Tim
Published: August 2019

Purpose

The purpose of this paper is to provide a holistic and systematic conceptualization of the impact of strategic human resource management (SHRM) on the psychological contract. Specifically, this paper aims to explore how the alignment of HR-systems and organizational communication influences the congruence and breach of the psychological contract.

Design/methodology/approach

The paper applies the signaling theory as a lens to develop a typology of four “ideal types” of SHRM configurations, each characterized by differences in the alignment of the HR-system and communication quality. Based on this typology, the influence of these different SHRM configurations on the congruence and breach of the psychological contract is being proposed.

Findings

The typology shows that the alignment of HR-systems and communication quality impact differently on the formation and breach of the psychological contract. It highlights that employees require both, highly aligned HR-systems and a high-quality communication to form congruent contract perceptions.

Originality/value

The configurational arguments embedded in the typology allow the conceptualization of the interrelationships between the alignment of HR-systems, organizational communication and the congruence and breach of the psychological contract. The propositions derived from the typology can guide research on SHRM as an antecedent of the psychological contract and shed light on the role of the psychological contract as a linking mechanism between SHRM and the employees’ reactions.
An ROI-based review of HR analytics: practical implementation tools
Authors: Chalutz Ben-Gal Hila
Published: August 2019

Purpose

The purpose of this paper is to provide a return on investment (ROI) based review of human resources (HR) analytics. The objectives of this paper are twofold: first, to offer an integrative analysis of the literature on the topic of HR analytics in order to provide scholars and practitioners a comprehensive yet practical ROI-based view on the topic; second, to provide practical implementation tools in order to assist decision makers concerning questions of whether and in which format to implement HR analytics by highlighting specific directions as to where the expected ROI may be found.

Design/methodology/approach

This paper is a review paper in which a four-step review and analysis methodology is implemented.

Findings

Study results indicate that empirical and conceptual studies in HR analytics generate higher ROI compared to technical- and case-based studies. Additionally, study results indicate that workforce planning and recruitment and selection are two HR tasks, which yield the highest ROI.

Practical implications

The results of this study provide practical information for HR professionals aiming to adopt HR analytics. The ROI-based approach to HR analytics presented in this study provides a robust tool to compare and contrast different dilemma and associated value that can be derived from conducting the various types of HR analytics projects.

Originality/value

A framework is presented that aggregates the findings and clarifies how various HR analytics tools influence ROI and how these relationships can be explained.
A review on fibre reinforced composite printing via FFF
Authors: Ferreira Isaac , Machado Margarida , Alves Fernando , Torres Marques António
Published: August 2019

Purpose

In industry, fused filament fabrication (FFF) offers flexibility and agility by promoting a reduction in costs and in the lead-time (i.e. time-to-market). Nevertheless, FFF parts exhibit some limitations such as lack of accuracy and/or lower mechanical performance. As a result, some alternatives have been developed to overcome some of these restrictions, namely, the formulation of high performance polymers, the creation of fibre-reinforced materials by FFF process and/or the design of new FFF-based technologies for printing composite materials. This work aims to analyze these technologies.

Design/methodology/approach

This work aims to study and understand the advances in the behaviour of 3D printed parts with enhanced performance by its reinforcement with several shapes and types of fibres from nanoparticles to continuous fibre roving. Thus, a comprehensive survey of significant research studies carried out regarding FFF of fibre-reinforced thermoplastics is provided, giving emphasis to the most relevant and innovative developments or adaptations undergone at hardware level and/or on the production process of the feedstock.

Findings

It is shown that the different types of reinforcement present different challenges for the printing process with different outcomes in the part performance.

Originality/value

This review is focused on joining the most important researches dedicated to the process of FFF-printed parts with different types reinforcing materials. By dividing the reinforcements in categories by shape/geometry and method of processing, it is possible to better quantify performance improvements.
The influence of a process interruption on tensile properties of AlSi10Mg samples produced by selective laser melting
Authors: Hammond Vincent , Schuch Michael , Bleckmann Matthias
Published: August 2019

Purpose

The purpose of this paper is to investigate the influence of a process interruption on the tensile properties of AlSi10Mg samples produced by selective laser melting (SLM).

Design/methodology/approach

Using identical processing parameters, cylindrical samples were produced in either a continuous or interrupted SLM build operation. The tensile properties and microstructure of the samples were determined as a function of process type as well as orientation.

Findings

All samples produced in this paper displayed superior tensile properties to those produced in high pressure die casting. In general, the samples produced in the continuous build process had higher strengths and microhardness than those produced in the interrupted process. However, while most samples displayed random failure locations, the vertical samples produced in the interrupted build process showed a strong tendency for localized failure in the vicinity of the stoppage plane.

Originality/value

This paper demonstrated that samples produced in an interrupted build process tend to have poorer mechanical properties than those produced in a continuous process. Together, these observations highlight the importance of a suitable technique for restarting and completing an interrupted build process to ensure the production of high quality components.
Investigation on moist silica sand’s circulation for sand mold printing with line-forming
Authors: Zhao Donghua , Guo Weizhong , Zhang Baibing , Gao Feng
Published: August 2019

Purpose

This paper aims to investigate the circulation of moist silica sand to provide appropriate feeding modes and references for designing the coating device when printing sand mold with line-forming.

Design/methodology/approach

First, this paper briefly introduces sand mold printing with line-forming and the circulation problem brought by moist silica sand. The outlet may be choked due to poor flowability and solidification characteristic, resulting in poor dimensional tolerance and even production failure. Then, based on circulation modeling, a series of feeding modes is proposed to guarantee adequate feeding, avoid solidification and ensure successful fabrication. Finally, the GUI of control software is developed, including slicing, path planning and the function of virtual printing.

Findings

Several feeding modes of moist silica sand are put forward to avoid the choke.

Research limitations/implications

The authors will further investigate the flowability of furan no-bake sand based on experiments.

Originality/value

This paper is going to provide references for the novel design of nozzle, prototype and sand mold printing, influencing significantly on mold manufacturing and the casting industry. This research applies equally to equipment having the circulation of high moist particles with solidification features.