bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electronic and face-to-face communication in mentoring relationships
Authors: Merritt Stephanie M. , Havill Lyndsey 
Published: May 2016

Purpose
Many mentoring relationships incorporate electronic communication. This study aims to examine the effects of communication format and interaction frequency on career and social support felt by the protégé.

Design/methodology/approach
Surveys followed 39 high-potential protégés over seven months in a mentoring program at a large US manufacturing organization.

Findings
All pairs but one chose to communicate electronically at least 50 per cent of the time. Less mentoring support was perceived when average media richness was lower (e.g. when pairs communicated more by e-mail); however, this effect was reduced when communication was more frequent.

Practicalimplications
Mentors and protégés should be trained to understand that average media richness is associated with perceived support and that they should avoid using exclusively low-richness formats (e.g. e-mail). When they do need to use more low-richness formats, they should communicate more frequently. Companies should provide technological support and motivational incentives for mentoring pairs to incorporate high-richness interactions (e.g. face to face) in their mentoring relationships more often.

Originality/value
This study is the first to our knowledge to examine mixed-media formats in high-potential employee mentoring pairs. In contrast to past work which has randomly assigned participants to communicate only via one format, these participants were allowed to choose their interaction format for each interaction, which is more realistic. The findings have practical value for mentors and protégés in terms of balancing format and interaction frequency.
Nonlinear thermal convection of a non-Fourier fluid
Authors: Khorasany Rahim M , Khayat Roger E , Niknami Mohammad 
Published: May 2016

Purpose
– The purpose of this paper is to determine the thermo-gravitational convective state of a non-Fourier fluid layer of the single-phase-lagging type, heated from below. Unlike existing methodologies, the spectral modes are not imposed arbitrarily. They are systematically identified by expanding the spectral coefficients in terms of the relative departure in the post-critical Rayleigh number (perturbation parameter). The number and type of modes is determined to each order in the expansion. Non-Fourier effects become important whenever the relaxation time (delay in the response of the heat flux with respect to the temperature gradient) is of the same order of magnitude as process time.

Design/methodology/approach
– In the spectral method the flow and temperature fields are expanded periodically along the layer and orthonormal shape functions are used in the transverse direction. A perturbation approach is developed to solve the nonlinear spectral system in the post-critical range.

Findings
– The Nusselt number increases with non-Fourier effect as suggested in experiments in microscale and nanofluid convection.

Originality/value
– Unlike existing nonlinear formulations for RB thermal convection, the present combined spectral-perturbation approach provides a systematic method for mode selection.
The convection of a Bingham fluid in a differentially-heated porous cavity
Authors: Rees D.  Andrew S. 
Published: May 2016

Purpose
– The purpose of this paper is to determine the manner in which a yield stress fluid begins convecting when it saturates a porous medium. A sidewall-heated rectangular cavity is selected as the testbed for this pioneering work.

Design/methodology/approach
– Steady solutions are obtained using a second order accurate finite difference method, line relaxation based on the Gauss-Seidel smoother, a Full Approximation Scheme multigrid algorithm with V-cycling and a regularization of the Darcy-Bingham model to smooth the piecewise linear relation between the Darcy flux and the applied body forces.

Findings
– While Newtonian fluids always convect whenever the Darcy-Rayleigh number is nonzero, Bingham fluids are found to convect only when the Darcy-Rayleigh number exceeds a value which is linearly dependent on both the Rees-Bingham number and the overall perimeter of the rectangular cavity. Stagnation is always found in the centre of the cavity and in regions close to the four corners. Care must be taken over the selection of the regularization constant.

Research limitations/implications
– The Darcy-Rayleigh number is restricted to values which are at or below 200.

Originality/value
– This is the first investigation of the effect of yield stress on nonlinear convection in porous media.
Numerical investigation on the performance of cross-flow micro heat exchangers
Authors: Nonino Carlo , Savino Stefano 
Published: May 2016

Purpose
– The purpose of this paper is twofold: to describe a relevant improvement to an in-house FEM procedure for the heat transfer analysis of cross-flow micro heat exchangers and to study the influence of microchannel cross-sectional geometry and solid wall thermal conductivity on the thermal performance of these microdevices.

Design/methodology/approach
– The velocity field in each microchannel is calculated separately. Then the energy equation is solved in the whole computational domain. Domain decomposition and grids that do not match at the common interface are employed to make meshing more effective. Some flow maldistribution effects are taken into account.

Findings
– The results show that larger thermal conductivities of the solid walls and rectangular cross-sectional geometries with higher aspect ratios allow the maximization of the total heat flow rate in the device. However, on the basis of the heat transfer per unit pumping power, the square cross-section could be the best option.

Research limitations/implications
– The value of the average viscosity is assumed to be different in different microchannels, but constant within each of the microchannels.

Practical implications
– The procedure can represent a valuable tool for the design of cross-flow micro heat exchangers.

Originality/value
– In spite of requiring limited computational resources, the improved procedure can take into account flow maldistribution effects stemming from non-uniform microchannel temperatures.
Method of regularized sources for axisymmetric Stokes flow problems
Authors: Wang Kai , Wen Shiting , Zahoor Rizwan , Li Ming , Šarler Božidar 
Published: May 2016

Purpose– The purpose of this paper is to find solution of Stokes flow problems with Dirichlet and Neumann boundary conditions in axisymmetry using an efficient non-singular method of fundamental solutions that does not require an artificial boundary, i.e. source points of the fundamental solution coincide with the collocation points on the boundary. The fundamental solution of the Stokes pressure and velocity represents analytical solution of the flow due to a singular Dirac delta source in infinite space.Design/methodology/approach– Instead of the singular source, a non-singular source with a regularization parameter is employed. Regularized axisymmetric sources were derived from the regularized three-dimensional sources by integrating over the symmetry coordinate. The analytical expressions for related Stokes flow pressure and velocity around such regularized axisymmetric sources have been derived. The solution to the problem is sought as a linear combination of the fields due to the regularized sources that coincide with the boundary. The intensities of the sources are chosen in such a way that the solution complies with the boundary conditions.Findings– An axisymmetric driven cavity numerical example and the flow in a hollow tube and flow between two concentric tubes are chosen to assess the performance of the method. The results of the newly developed method of regularized sources in axisymmetry are compared with the results obtained by the fine-grid second-order classical finite difference method and analytical solution. The results converge with a finer discretization, however, as expected, they depend on the value of the regularization parameter. The method gives accurate results if the value of this parameter scales with the typical nodal distance on the boundary.Originality/value– Analytical expressions for the axisymmetric blobs are derived. The method of regularized sources is for the first time applied to axisymmetric Stokes flow problems.
Investigation of the coherent structures in flow behind a backward-facing step
Authors: Hu Ruyun , Wang Liang , Fu Song 
Published: May 2016

Purpose
– The purpose of this paper is to investigate the characteristic flow structures behind a backward-facing step. With better understanding of unsteady features, effective control practice with harmonic actuation is illustrated.

Design/methodology/approach
– The present study employs Improved Delayed Detached Eddy Simulation to resolve flow turbulence with a finite-volume approach on structured grid mesh. The coherent structure is displayed through temporal- and spatial-evolution of pressure fluctuations. Characteristic frequencies in different flow regions are extracted using fast Fourier transform. Dynamic mode decomposition method is applied to uncover the critical dynamic modes.

Findings
– The time- and spanwise-averaged quantities agree well with experimental data. It is observed that two distinct modes exist: shear layer mode and shedding mode. The former is related to Kelvin-Helmholtz instability mechanism, vortex pairing and step mode with non-dimensional frequency, Sth,st
at around 0.2. The latter is of multi-scale, with a typical coherent structure shedding frequency, Sth,st
at 0.074. Step mode interacts with shedding mode in the reattachment region, resulting in the low-frequency characteristics.

Originality/value
– An optimal excitation frequency to reduce recirculation bubble length is obtained at about Sth,st
=0.2 with an explanation.
Second order accurate particle-based formulations
Authors: Shimada Masao , Tae David , Xue Tao , Deokar Rohit , Tamma K K 
Published: May 2016

Purpose– The purpose of this paper is to present new implementation aspects of unified explicit time integration algorithms, called the explicit GS4-II family of algorithms, of a second-order time accuracy in all the unknowns (e.g. positions, velocities, and accelerations) with particular attention to the moving-particle simulation (MPS) method for solving the incompressible fluids with free surfaces.Design/methodology/approach– In the present paper, the explicit GS4-II family of algorithms is implemented in the MPS method in the following two different approaches: a direct explicit formulation with the use of the weak incompressibility equation involving the (modified) speed of sound; and a predictor-corrector explicit formulation. The first approach basically follows the concept of the explicit MPS method, presented in the literature, and the latter approach employs a similar concept used in, for example, a fractional-step method in computational fluid dynamics.Findings– Illustrative numerical examples demonstrate that any scheme within the proposed algorithmic framework captures the physics with the necessary second-order time accuracy and stability.Originality/value– The new algorithmic framework extended with the GS4-II family encompasses a multitude of pastand new schemes and offers a general purpose and unified implementation.
A model of customer-centric banking practices for corporate clients in Bangladesh
Authors: Andaleeb Syed Saad , Rashid Mamunur , Rahman Quazi Akhlaqur 
Published: May 2016

Purpose
– Customer-centric banking envisions that banks should meet both tangible and intangible satisfaction criteria of their customers. The purpose of this paper is to investigate the customer-centric banking practices that drive satisfaction of corporate customers in Bangladesh.

Design/methodology/approach
– Financial managers from a sample of 112 non-financial listed companies were interviewed. The study employed a structured questionnaire using Likert scales. Exploratory factor analysis followed by multiple regression analysis were used to test the effects of both tangible and intangible factors.

Findings
– The findings of the study indicate that customer-centric banking is primarily influenced by intangible factors. Among six bank selection criteria analyzed in this study, corporate image, commitment, compassion and consistency are the four significant intangible factors that drive corporate customer satisfaction. The two tangible factors: cost-benefit and convenience were not significant determinants of satisfaction for corporate clients.

Research limitations/implications
– For lack of sample frames and relative unavailability of corporate respondents, a non-probability sampling technique was used. The study contributes to the existing literature on customer-centric marketing, relationship marketing and bank selection by suggesting that there is a shift in banking needs among corporate clients in developing countries such as Bangladesh.

Practical implications
– The study contributes to a richer understanding of the customer-centric banking framework, suggesting the service strategies that banks ought to adopt. The results are especially important for developing countries that are experiencing a change in theoretical understanding of customer satisfaction in financial services.

Originality/value
– Now banks and policy makers can better strategize on building loyal corporate customers for banks, thereby ensuring healthy corporate banking relationship. Banks can also prioritize on the important intangible elements to focus on to satisfy corporate customers. Among other factors, technology adoption, training of corporate customer managers, and emphasizing customer-centric banking policies may help provide better services and obtain higher levels of customer satisfaction.
Taxonomizing performance measurement systems’ failures
Authors: Van Camp Jelle , Braet Johan 
Published: May 2016

Purpose
– After more than 30 years of research, literature on performance measurement systems (PMS) is characterized by diversity and fragmentation. Due to the multidisciplinarity of stakeholders and researchers involved the basis of literature is expanding, but not converging. The purpose of this paper is to dispersedly discuss failures of PMS in the abundance of literature written.

Design/methodology/approach
– Over 250 articles related to PMS have been analyzed in order to shortlist failures of PMS. Two criteria have been used: explicitly referenced being a failure; or mentioned as being essential for a successful PMS. Next steps were clustering, cross-checking with academics and professionals and re-allocation to appropriate levels.

Findings
– This paper identifies 36 failures and proposes an easy taxonomy for further referencing by attribution to three levels: metric, framework and management. Failures range from uncertainties in data gathering, lack of knowledge and dealing with complexity, toward the allocation of necessary resources.

Research limitations/implications
– Limitations are attributed to the abundance of research published on PMS. Consequently, incorporated papers are a subset representing the current state of the research domain. Furthermore, the completeness of the list can be discussed as well as the level of generalization of the proposed taxonomy.

Originality/value
– Both academics and professionals can benefit from this study as it creates an awareness of the risks involved when constructing, implementing and managing a PMS. Therefore, this original research ought to be seen as a catalyst for a learning curve, as it puts the research of PMS in a different perspective.
Communities of co-commenting in the Russian LiveJournal and their topical coherence
Authors: Koltsova Olessia , Koltcov Sergei , Nikolenko Sergey 
Published: May 2016

Purpose– The paper addresses the problem of what drives the formation of latent discussion communities, if any, in the blogosphere: topical composition of posts or their authorship? The purpose of this paper is to contribute to the knowledge about structure of co-commenting.Design/methodology/approach– The research is based on a dataset of 17,386 full text posts written by top 2,000 LiveJournal bloggers and over 520,000 comments that result in about 4.5 million edges in the network of co-commenting, where posts are vertices. The Louvain algorithm is used to detect communities of co-commenting. Cosine similarity and topic modeling based on latent Dirichlet allocation are applied to study topical coherence within these communities.Findings– Bloggers unite into moderately manifest communities by commenting roughly the same sets of posts. The graph of co-commenting is sparse and connected by a minority of active non-top commenters. Communities are centered mainly around blog authors as opinion leaders and, to a lesser extent, around a shared topic or topics.Research limitations/implications– The research has to be replicated on other datasets with more thorough hand coding to ensure the reliability of results and to reveal average proportions of topic-centered communities.Practical implications– Knowledge about factors around which co-commenting communities emerge, in particular clustered opinion leaders that often attract such communities, can be used by policy makers in marketing and/or political campaigning when individual leadership is not enough or not applicable.Originality/value– The research contributes to the social studies of online communities. It is the first study of communities based on co-commenting that combines examination of the content of commented posts and their topics.
Using online self-assessment tool to improve conjoint analysis
Authors: Wang Keqiang , Liu Hongmei , Hu Wuyang , Cox Linda 
Published: May 2016

Purpose
– Dolphin excursions have become increasingly popular worldwide. Many past studies assessing the value of dolphin excursions use choice-based methods such as the conjoint analysis. However, this method is often criticized as being hypothetical. The purpose of this paper is to describe a relatively low cost but effective approach to enhance understanding of consumer preference obtained by conjoint analysis. The method relies heavily on using internet-based survey tools.

Design/methodology/approach
– Enabled by an online tool, individuals are asked to self-explicate their preferred alternatives using the same attributes as are found in the conjoint design. The difference between the self-constructed, preferred alternatives and those offered in conjoint experiment are incorporated into choice models. Unlike previous research where only rough estimates can be provided, the proposed method allows precise capture of respondents’ preferred alternative through the automated online survey design.

Findings
– Results show that although the extra effort involved in data collection is small, the gain in model fit, choice interpretation, and the value (welfare) estimation is sizeable. Evidence indicates that consumers would be willing to pay up to $50 more for adventurous excursions and guarantees that they will interact with dolphins could worth up to $70 per trip. The approach presented in this paper can also serve as a method to test for preference consistency.

Originality/value
– This study is the first using an online survey to assess values associated with dolphin excursion. It describes the benefit of involving online tools to enhance modeling and interpretation of consumer behavior. Applications of internet-based surveys on household consumer products are abundant (such as food and electronics) but this study offers a much less discussed application in environmental service.
The influence of personality traits and social networks on the self-disclosure behavior of social network site users
Authors: Chen Xi , Pan Yin , Guo Bin 
Published: May 2016

Purpose– The purpose of this paper is to determine the influence and interaction of social networks and personality traits on the self-disclosure behavior of social network site (SNS) users. According to social capital theory and the Big Five personality model, the authors hypothesized that social capital factors would affect the accuracy and amount of self-disclosure behavior and that personality traits would moderate this effect.Design/methodology/approach– A survey was conducted to collect data from 207 SNS users. The questionnaire was administered in university classrooms and libraries and via e-mail. The measurement model and structural model were examined by using LISREL 8.8 and SmartPLS 2.0.Findings– Based on the path analysis, the authors identified several interesting patterns to explain self-disclosure behavior on SNSs. First, the centrality of SNS users has a positive effect on their amount of self-disclosure. Moreover, people who are more extroverted disclose personal information that is more accurate with the level of the cognitive dimension held constant and disclose a greater amount of personal information with the level of the structural dimension held constant. From a practical perspective, the results may provide useful insight for companies operating SNSs.Originality/value– This study analyzed the influence of social capital factors on SNS users’ self-disclosure, as well as the interactions between personality and social capital factors. Specifically, the authors examined six important variables of social capital divided into three dimensions. This research complements current research on SNSs by focusing on SNS users’ motivation to disclose self-related information in addition to information sharing.
An empirical assessment of the antecedents of electronic-business implementation and the resulting organizational performance
Authors: Migdadi Mahmoud Mohammad , Abu Zaid Mohammed  Khair Saleem , Al-Hujran Omar Salameh , Aloudat Anas Mustafa 
Published: May 2016

Purpose
– The purpose of this paper is to propose and empirically test a unified framework that captures the antecedents of e-business implementation, that is; organizational factors which is decomposed into organizational capabilities (training availability, technical expertise, knowledge level), knowledge management capabilities (knowledge acquisition, application, and sharing), adhocracy culture, and top management support, e-business implementation, and organizational performance (efficiency, sales performance, customer satisfaction, relationship development).

Design/methodology/approach
– Data from a survey of 258 top managers in Saudi Arabian enterprises were collected to empirically test the proposed research model. Additionally, the statistical techniques employed included a confirmatory factor analysis to examine the reliability and validity of the measurement model, and structural equation modeling using AMOS is utilized to test the hypotheses.

Findings
– The findings of this study suggest that organizational factors influence e-business implementation. Moreover, e-business implementation affects organizational performance.

Research limitations/implications
– This study did not investigate all organizational factors and knowledge management processes. Future research could assess the influence of additional factors such as technology and environment contexts on e-business implementation.

Practical implications
– Owners/managers considering e-business implementation would be best to focus on internal (organizational) factors and their interaction within and beyond the organization, rather than focussing exclusively on technological considerations.

Originality/value
– This study is significant for at least two reasons: it determines the key antecedents to successful business implementation based on organizational factors and it helps to understand the effects of e-business implementation on organizational performance.