bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating the effect of nanoparticles diameter on turbulent flow and heat transfer properties of non-Newtonian carboxymethyl cellulose/CuO fluid in a microtube
Authors: Rahimi Gheynani Ali , Ali Akbari Omid , Zarringhalam Majid , Ahmadi Sheikh Shabani Gholamreza , Alnaqi Abdulwahab A. , Goodarzi Marjan , Toghraie Davood 
Published: October 2018

Purpose
Although many studies have been conducted on the nanofluid flow in microtubes, this paper, for the first time, aims to investigate the effects of nanoparticle diameter and concentration on the velocity and temperature fields of turbulent non-Newtonian Carboxymethylcellulose (CMC)/copper oxide (CuO) nanofluid in a three-dimensional microtube. Modeling has been done using low- and high-Reynolds turbulent models. CMC/CuO was modeled using power law non-Newtonian model. The authors obtained interesting results, which can be helpful for engineers and researchers that work on cooling of electronic devices such as LED, VLSI circuits and MEMS, as well as similar devices.

Design/methodology/approach
Present numerical simulation was performed with finite volume method. For obtaining higher accuracy in the numerical solving procedure, second-order upwind discretization and SIMPLEC algorithm were used. For all Reynolds numbers and volume fractions, a maximum residual of 10−6 is considered for saving computer memory usage and the time for the numerical solving procedure.

Findings
In constant Reynolds number and by decreasing the diameter of nanoparticles, the convection heat transfer coefficient increases. In Reynolds numbers of 2,500, 4,500 and 6,000, using nanoparticles with the diameter of 25 nm compared with 50 nm causes 0.34 per cent enhancement of convection heat transfer coefficient and Nusselt number. Also, in Reynolds number of 2,500, by increasing the concentration of nanoparticles with the diameter of 25 nm from 0.5 to 1 per cent, the average Nusselt number increases by almost 0.1 per cent. Similarly, In Reynolds numbers of 4,500 and 6,000, the average Nusselt number increases by 1.8 per cent.

Research limitations/implications
The numerical simulation was carried out for three nanoparticle diameters of 25, 50 and 100 nm with three Reynolds numbers of 2,500, 4,500 and 6,000. Constant heat flux is on the channel, and the inlet fluid becomes heated and exists from it.

Practical implications
The authors obtained interesting results, which can be helpful for engineers and researchers that work on cooling of electronic devices such as LED, VLSI circuits and MEMS, as well as similar devices.

Originality/value
This manuscript is an original work, has not been published and is not under consideration for publication elsewhere. About the competing interests, the authors declare that they have no competing interests.
Brazilian women’s entrepreneurial profile and intention
Authors: Krakauer Patricia Viveiros de Castro , de Moraes Gustavo Hermínio Salati Marcondes , Coda Roberto , Berne Davi de França 
Published: October 2018

Purpose
The paper aims to investigate the existence of typical preferred behaviours that might characterize Brazilian women’s entrepreneurial profile and whether this profile influences their motivation to undertake a venture.

Design/methodology/approach
Following the evolution of the literature on women entrepreneurship, the study criticizes the rational view that conceives entrepreneurship as a universal phenomenon and immune to gender. A quantitative approach based on multivariate data analysis (structural equation modelling) was applied to a sample of 418 women entrepreneurs with regard to six hypotheses associated with a specifically conceived conceptual model.

Findings
The behavioural categories tested in the model that most influence Brazilian women’s entrepreneurial profile are planning, identifying opportunities, sociability and leadership, corroborating the results of other international studies. Behaviours connected with persistence did not correlate to Brazilian women’s entrepreneurial profile. The hypothesis that women’s entrepreneurial profile positively influences their entrepreneurial intention was confirmed.

Research limitations/implications
As the study is based on an intentional, non-probabilistic sample, further research needs to be conducted using other forms of sampling, extending the findings to other contexts internationally and to other Brazilian regions.

Practical implications
Women can perceive whether their behavioural profile is suited to embracing entrepreneurship challenges, helping them to make effective career choices.

Originality/value
The study provides a robust model with high explanatory value. It contributes to the women’s entrepreneurship literature from the perspective of a Latin American developing country, offering valuable insights regarding the impact of entrepreneurial behavioural profile on women’s entrepreneurial activities.
Second-generation gender bias
Authors: Opoku Alex , Williams Ninarita 
Published: October 2018

Purpose
The eradication of gender discrimination at work has been a prominent feature
of the UK political and business agenda for decades; however, the persistent
business gender leadership gap remains. The concept of second-generation
gender bias has recently been proposed as the primary cause. This paper aims
to evaluate how women experience second-generation gender bias in
construction organisations. It examines key manifestations of
second-generation gender bias and how it impacts women’s career
progression into leadership positions in the UK construction industry.

Design/methodology/approach
This paper adopts a broad feminist interpretative lens aligned with the
general aims of feminist critical inquiry through semi-structured interviews
with 12 women experiencing career journeys of at least five years in the
construction industry.

Findings
This paper reveals that second-generation gender bias hinders the career
development and leadership identity of some women and the persistent
business gender leadership gap is unlikely to change without addressing
it.

Originality/value
There is little or no research that speaks exclusively to the experience of
second-generation gender bias and female managers working within the UK
construction. This paper provides further insight into the barriers women
face when attempting to progress into senior management roles, particularly
in construction.
An empirical study of purchase behaviour on social platforms
Authors: Benson Vladlena , Ezingeard Jean-Noel , Hand Chris 
Published: October 2018

Purpose
Social media users’ purchasing behaviour is yet to be fully understood by research. The purpose of this paper is to investigate how purchase intention is affected by social media user traits, cognitive factors (such as perceived control and trust) and individual beliefs, such as risk propensity and trustworthiness.

Design/methodology/approach
The authors propose and empirically test a model of purchase intention on social platforms. The study of over 500 active social media users finds the links between risk propensity, trust, technical efficacy and perceived control and explores the moderating effect of age and gender.

Findings
Purchase intention on social platforms is influenced by demographic factors, cognitive factors and beliefs. Both age and gender moderate the effects of beliefs and cognitive factors: age is a determinant of purchase intention for men, while beliefs are significant for younger women and cognitive factors are significant for older women.

Research limitations/implications
This study involved a cross-sectional design via online survey of social networking users. Gender differences in purchase intentions are found which are, in turn, influenced by age. Further empirical testing of social purchase intention could include less experienced users or non-users.

Practical implications
The results of this study provide guidance for SNS providers and technology developers in social networking commerce in terms of the different drivers of purchase intention.

Originality/value
Social media users’ purchasing behaviour is yet to be fully understood. The study shows that purchase intention antecedents vary between genders and age groups of users. The identified connection between users’ perceptions of social networking sites (SNS) usage of personal information and purchase behaviour has an impact on the likelihood of user engagement in social transactions.
Evaluation of vehicle lightweighting to reduce greenhouse gas emissions with focus on magnesium substitution
Authors: Kulkarni Siddharth , Edwards David John , Parn Erika Anneli , Chapman Craig , Aigbavboa Clinton Ohis , Cornish Richard 
Published: October 2018

Purpose
Vehicle weight reduction represents a viable means of meeting tougher regulatory requirements designed to reduce fuel consumption and control greenhouse gas emissions. This paper aims to present an empirical and comparative analysis of lightweight magnesium materials used to replace conventional steel in passenger vehicles with internal combustion engines. The very low density of magnesium makes it a viable material for lightweighting given that it is lighter than aluminium by one-third and steel by three-fourth.

Design/methodology/approach
A structural evaluation case study of the “open access” Wikispeed car was undertaken. This included an assessment of material design characteristics such as bending stiffness, torsional stiffness and crashworthiness to evaluate whether magnesium provides a better alternative to the current usage of aluminium in the automotive industry.

Findings
The Wikispeed car had an issue with the rocker beam width/thickness (b/t) ratio, indicating failure in yield instead of buckling. By changing the specified material, Aluminium Alloy 6061-T651 to Magnesium EN-MB10020, it was revealed that vehicle mass could be reduced by an estimated 110 kg, in turn improving the fuel economy by 10 per cent. This, however, would require mechanical performance compromise unless the current design is modified.

Originality/value
This is the first time that a comparative analysis of material substitution has been made on the Wikispeed car. The results of such work will assist in the lowering of harmful greenhouse gas emissions and simultaneously augment fuel economy.
The effect of leverage on the performance of real estate companies
Authors: Morri Giacomo , Jostov Karoline 
Published: October 2018

PurposeThis paper aims to investigate the impact of leverage on the total shareholder return of European publicly traded real estate vehicles in three periods: Crisis Period (2007-2009), Rebound Period (2009-2014) and the Whole Period.Design/methodology/approachCross-sectional analysis is used and the leverage effect on the performance is controlled for seven other independent variables (local market risk premium, size, book-to-market, short-term debt, cash); moreover, regional differences are accounted for.FindingsIt is established that during the Crisis Period, leverage levels are negatively associated with performance: this relationship also holds throughout the Whole Period, implying that for real estate securities, the cost of financial distress is larger than the potential gain from taxation, although the economic significance of it is limited. The Fama and French (1992) three factors, including size, book-to-market and local market risk premium, are found to be relevant, which is consistent with the literature. In addition, the UK and Sweden regions are identified as significant.Originality/valueEven if there is sizeable body of literature on determinants of leverage and determinants of asset returns, little work has been done on how leverage affects the returns of European real estate companies. In addition, this paper takes advantage of observations from a full economic cycle and the possible effects of the crisis period.
Governing integrated care networks through collaborative inquiry
Authors: Mitterlechner Matthias 
Published: October 2018

Purpose
The purpose of this paper is to develop a theory of governing in integrated care networks. Asking how and why the governance of these networks emerges and evolves over time, it responds to calls for more innovative thinking in this field.

Design/methodology/approach
Data result from a rare longitudinal qualitative case study conducted with the Healthcare Centre Lower Engadin, the lead organisation of pioneering health and social care network in a rural Swiss region.

Findings
Actors governed the network through repetitive sequences of collaborative inquiry, a practice through which they defined and addressed recurrent problems of network governance and joint network action in creative and experimental ways.

Research limitations/implications
Explaining how and why the governance of integrated care networks emerges and evolves, this study adds a dynamic theory to previous research, which has studied the determinants of effective network governance without considering their temporal evolution. It also contributes to the wider network literature, drawing attention to the pivotal role of meaning making, creativity and experimentation for understanding network governance dynamics.

Practical implications
The study invites practitioners to reflect on how they want to design collaborative inquiry in their own contexts. Important design levers include the creation of communication forums, trust and information transparency.

Originality/value
The study adds a rare longitudinal perspective on the governance of integrated care networks.
Clinicians as novice facilitators: a SIMPLE case study
Authors: Young Adrienne M. , Keller Heather H. , Barnes Rhiannon , Bell Jack J. 
Published: October 2018

Purpose
The purpose of this paper is to advance understanding about the facilitation process used in complex implementation projects, by describing the function of novice clinician facilitators, and the barriers and enablers they experience, while implementing a new model of care for managing hospital malnutrition.

Design/methodology/approach
Semi-structured interviews were undertaken with local facilitators (n=7) involved in implementing The SIMPLE Approach (Systematised Interdisciplinary Malnutrition Pathway Implementation and Evaluation) in six hospitals in Queensland, Australia. Facilitator networks and training supported the clinicians acting as novice facilitators.

Findings
Key functions of the facilitator role were building relationships and trust; understanding the problem and stimulating change through data; negotiating and implementing the change; and measuring, sharing and reflecting on success. “Dedicated role, time and support” was identified as a theme encompassing the key barriers and enablers to successful facilitation.

Practical implications
When implementing complex interventions within short project timelines, it is critical that novice clinician facilitators are given adequate and protected time within their role, and have access to regular support from peers and experienced facilitators. With these structures in place, facilitators can support iterative improvements through building trust and relationships, co-designing strategies with champions and teams and developing internal capacity for change.

Originality/value
This case study extends the knowledge about how facilitation works in action, the barriers faced by clinicians new to working in facilitator roles, and highlights the need for an adapt-to-fit approach for the facilitation process, as well as the innovation itself.
Interdisciplinary knowledge cohesion through distributed information management systems
Authors: Kaltenthaler Daniel , Lohrer Johannes-Y. , Richter Florian , Kröger Peer 
Published: October 2018

Purpose
Interdisciplinary linkage of information is an emerging topic to create knowledge by collaboration of experts in diverse domains. New insights can be found by using the combined techniques and information when people have the chance to discuss and communicate on a common basis.

Design/methodology/approach
This paper describes RMS Cloud, an information management system which allows distributed data sources to be searched using dynamic joins of results from heterogeneous data formats. It is based on the well-known Mediator architecture, but reverses the connection of the data sources to grant data owners full control over the data.

Findings
Data owners and learners are enabled to retrieve information and to cross-connect domain-extrinsic knowledge and enhances collaborative learning with a search interface that is intuitive and easy to operate.

Originality/value
This novel architecture is able to connect to differently shaped data sources from interdisciplinary domains into one common retrieval interface.
Orchestrating service brand touchpoints and the effects on relational outcomes
Authors: Sultan Abdullah J. 
Published: October 2018

Purpose
This research aims to identify critical brand touchpoints that generate value for customers and brands and examine their effects on two relational outcomes: relationship quality and word of mouth (WOM).

Design/methodology/approach
Three studies combining qualitative and quantitative research provide evidence distinguishing four different stages of customer experience in the telecom industry and develop a research model of staged customer experience; structural equation modeling analyses are used to validate the proposed model and test for the examined effects.

Findings
Customer experience in the telecom industry consists of four related but distinct stages (i.e. pre-touch, in-touch, post-touch and service failure) and these stages have direct and indirect effects on WOM. Furthermore, the effects of customer experience stages on WOM are partially mediated by relationship quality.

Research limitations/implications
The research model introduced here will allow academics and practitioners to focus their efforts on important touchpoints that influence relationship quality and WOM. Future research should examine the proposed model of staged customer experience in different applications and industries.

Practical implications
A common myth among marketers is that firms should design a painless experience if they want a superior market position. While avoiding a drain on financial resources, the prime objective should be to provide a holistic customer experience that is valuable to customers and the brand alike. Marketers should disregard touchpoints and stages that do not provide noticeable value.

Originality/value
This research answers the call for a more appropriate model to elucidate the factors that link customer experience with relational outcomes.
Financial fraud detection and big data analytics – implications on auditors’ use of fraud brainstorming session
Authors: Tang Jiali , Karim Khondkar E. 
Published: October 2018

PurposeThis paper aims to discuss the application of Big Data analytics to the brainstorming session in the current auditing standards.Design/methodology/approachThe authors review the literature related to fraud, brainstorming sessions and Big Data, and propose a model that auditors can follow during the brainstorming sessions by applying Big Data analytics at different steps.FindingsThe existing audit practice aimed at identifying the fraud risk factors needs enhancement, due to the inefficient use of unstructured data. The brainstorming session provides a useful setting for such concern as it draws on collective wisdom and encourages idea generation. The integration of Big Data analytics into brainstorming can broaden the information size, strengthen the results from analytical procedures and facilitate auditors’ communication. In the model proposed, an audit team can use Big Data tools at every step of the brainstorming process, including initial data collection, data integration, fraud indicator identification, group meetings, conclusions and documentation.Originality/valueThe proposed model can both address the current issues contained in brainstorming (e.g. low-quality discussions and production blocking) and improve the overall effectiveness of fraud detection.
The determinants of audit report lag: a meta-analysis
Authors: Durand Giselle 
Published: October 2018

PurposeThe purpose of this paper is to further the understanding of the determinants of audit report lag, which is the number of days from a company’s fiscal year-end to the date of its auditor’s report, by synthesizing extant literature. Audit report lag has been a variable of interest in many studies due to its use as a proxy for the occurrence of auditor-client management negotiations and audit efficiency and because long audit report lags delay the release of earnings information to the market.Design/methodology/approachThe author uses meta-analysis to examine commonly identified predictors of audit report lag to determine if the prior research provides a consistent portrayal of audit report lag drivers.FindingsThe author finds that a number of variables relating to client profitability and financial condition, client complexity and audit opinion modifications increase audit report lag. In addition, audit report lag decreases with client size, when clients have positive earnings news to report and when the auditor has long tenure and provides non-audit services. Several variables, such as those relating to corporate governance and various auditor characteristics, have been little explored and would benefit from future research.Originality/valueThese results will be useful to researchers when selecting control variables for future audit report lag studies and provide insights into the key factors that contribute to the delay in audit reporting.
Investigation on surface roughness of sintered PA2200 prototypes using Taguchi method
Authors: Mavoori Naveen Kumar , Vekatesh Sriram , M. Manzoor Hussain 
Published: October 2018

Purpose
The purpose of this research paper is to optimize the process parameters of selective laser sintering process, and the sintered parts of PA2200 prototypes are built with minimum surface roughness within the range of 10-12 microns using the Taguchi design of experiments approach.

Design/methodology/approach
In this research paper, a 3D model is created using catia V5 and exported to rapid prototype machine, and the 3D model file was repaired by using Magics software to remove the facets and saved with file extension .stl (standard triangulation language).Taguchi design of experiments approach L9 orthogonal array was selected with three factors at three levels each and total nine experiments were conducted with the quality index lower-the-better signal-to-noise ratio to produced better quality prototypes by optimizing the process parameters like laser power, layer thickness and temperature and tested on surface tester for surface roughness. The experimental results of surface roughness were compared with Regression Analysis, S/N Ratio, Analysis of Mean and predicted model on sintered prototypes.

Findings
The experimental results obtained after testing on the surface tester compared with mathematical model for the quality index lower-the-better signal-noise ratio with optimal process parameters operating at Temperature at level 3, Layer thickness at level 3, and Laser power at level 3, regression analysis, and predictive model the output response variable surface roughness, is with in the range of 9-10.5 microns are all most same and from ANOM (Analysis of Mean), temperature at leve1, layer thickness at level 2, laser power at level 2 is 9 -9.6 microns.

Research limitations/implications
The process parameters such as beam diameter and table speed were not considered on output response variable surface roughness in this research paper.

Originality/value
All the experiments were conducted and the parts are produced by using the material PA2200 in the powder from and sintered by Co2 laser by varying the process parameters with optimal settings to produce minimum surface roughness the out put from this paper is the influence of process parameters on surface roughness can be predicted at optimal settings with in less time and cost.