bluuebunny/crossref_metadata_2025_split huggingface dataset:
A study on tribological behaviour and analysis of ZnO reinforced AA6061 matrix composites fabricated by stir casting route
Authors: RM Sakthi Sadhasivam , K. Ramanathan , B.V. Bhuvaneswari , R. Raja 
Published: May 2021

Purpose
The most promising replacements for the industrial applications are particle reinforced metal matrix composites because of their good and combined mechanical properties. Currently, the need of matrix materials for industrial applications is widely satisfied by aluminium alloys. The purpose of this paper is to evaluate the tribological behaviour of the zinc oxide (ZnO) particles reinforced AA6061 composites prepared by stir casting route.

Design/methodology/approach
In this study, AA6061 aluminium alloy matrix reinforced with varying weight percentages (3%, 4.5% and 6%) of ZnO particles, including monolithic AA6061 alloy samples, is cast by the most economical fabrication method, called stir casting. The prepared sample was subjected to X-ray photoelectron spectroscopy (XPS) analysis, experimental density measurement by Archimedian principle and theoretical density by rule of mixture and hardness test to investigate mechanical property. The dry sliding wear behaviour of the composites was investigated using pin-on-disc tribometer with various applied loads of 15 and 20 N, with constant sliding velocity and distance. The wear rate, coefficient of friction (COF) and worn surfaces of the composite specimens and their effects were also investigated in this work.

Findings
XPS results confirm the homogeneous distribution of ZnO microparticles in the Al matrix. The Vickers hardness result reveals that higher ZnO reinforced (6%) sample have 34.4% higher values of HV than the monolithic aluminium sample. The sliding wear tests similarly show that increasing the weight percentage of ZnO particles leads to a reduced wear rate and COF of 30.01% and 26.32% lower than unreinforced alloy for 15 N and 36.35% and 25% for 20 N applied load. From the worn surface morphological studies, it was evidently noticed that ZnO particles dispersed throughout the matrix and it had strong bonding between the reinforcement and the matrix, which significantly reduced the plastic deformation of the surfaces.

Originality/value
The uniqueness of this work is to use the reinforcement of ZnO particles with AA6061 matrix and preparing by stir casting route and to study and analyse the physical, hardness and tribological behaviour of the composite materials.
Interactive effects of advising strength and brand familiarity on users' trust and distrust in online recommendation agents
Authors: Liu Tao , Wang Weiquan , Xu Jingjun (David) , Ding Donghong , Deng Honglin 
Published: May 2021

PurposeThis paper investigates the effects of advising strength of a recommendation agent on users' trust and distrust beliefs and how the effects are moderated by perceived brand familiarity.Design/methodology/approachA research model is evaluated using a laboratory experiment with 149 participants.FindingsResults reveal that a strong advising tone leads to higher trust in terms of users' credibility and benevolence beliefs and lower distrust in terms of their discredibility beliefs (the trustor's concerns regarding the trustee's dishonesty and competence in engaging in harmful behavior) when perceived brand familiarity is high. By contrast, when brand familiarity is low, strong advising tone results in low trust in terms of users' credibility belief and high distrust in terms of their beliefs in discredibility and malevolence (concerns regarding the trustee's conduct in terms of a malicious intention that can hurt the trustor's welfare).Originality/valueThis paper contributes to the trust and distrust literature by studying how each of the dimensions of trust and distrust can be affected by an RA's design feature. It extends the attribution theory to the RA context by studying the moderating role of brand familiarity in determining the effects of the advising strength of an RA. It provides actionable guidelines for practitioners regarding the adoption of an RA's appropriate advising strength to promote different types of products.
Gender gap in STEM education and career choices: what matters?
Authors: Tandrayen-Ragoobur Verena , Gokulsing Deepa 
Published: May 2021

PurposeThe paper innovates on the existing literature by assessing the gender gap in Science, Technology, Engineering and Maths (STEM) tertiary education enrolment and career choice in a small country setting and by extending on Master and Meltzoff (2016) theoretical framework to provide a holistic explanation of the gender disparity through a mix of personal, environmental and behavioural factors. The study first probes into the existence of potential gender disparity in STEM tertiary enrolment in Mauritius. Second, in contrast with existing studies where selective factors are used to measure the gender gap in STEM education, this paper investigates into a combination of personal, environmental and behavioural factors that may influence participation in STEM education and career.Design/methodology/approachThe study uses a survey of 209 undergraduates enroled in the main public university and investigates into the existence of a gender gap in STEM tertiary education enrolment and the reasons behind this disparity. Consistent with the theoretical model, the empirical analysis also investigates into the work environment (which cannot be measured from the survey), via semi-structured interviews of 15 women in STEM professions.FindingsThe logit regression results first reveal the existence of a gender disparity in the choice of STEM-related degrees. The probability of a female student to enrol in a STEM degree is lower than that of a male student, after controlling for all the personal, environmental and behavioural factors. The most important set of reasons influencing the student's STEM degree choice are self-efficacy and the student's academic performance in STEM subjects at secondary school level. The findings also demonstrate that young women are relatively more likely to choose STEM degrees than their male counterparts when they are supported by their family, school and teachers. There is further evidence of lower participation of women in STEM professions as well as significant challenges which women in STEM careers face compared to their male colleagues.Originality/valueThis study adopts a holistic framework to assess the factors that hinder women's participation in STEM tertiary education and career in Mauritius.
In quest of goldilocks ranges in searching for information on the web
Authors: Matysek Anna , Tomaszczyk Jacek 
Published: May 2021

PurposeThe quest to discover optimal conditions or amounts has been carried out in many scientific disciplines and practical fields. In astrophysics, biology, medicine, psychology and education, the quest has resulted in finding the right amount of something, a desirable middle between extremes, a balance between conditions or the optimal state of a system. The results are referred to as the Goldilocks principle, which is based on the idea of being “just right”. The aim of our study was to find out if there are any measures in information search that could be identified as Goldilocks ranges.Design/methodology/approachWe conducted a user experiment in which 68 participants carried out a time-unlimited, topical search task involving finding relevant websites on the basis of which the participants were supposed to prepare a presentation on a given topic. We examined aspects of their search behavior.FindingsWe found that information search Goldilocks ranges can be identified for a length of a search session, number of relevant results, number of queries submitted and number of search engine results pages (SERPs) visited. This preliminary study has resulted in indicating the following dominant ranges: Number of relevant documents found: 5–8; Time spent searching: 21–35 min; Number of queries submitted: 3–7; Number of SERPs viewed: 1–3.Originality/valueTill now, no one has studied Goldilocks ranges in information retrieval. The Goldilocks ranges have some practical implications for improving the effectiveness of web searching.
Evaluating the wage differential between the formal and informal economy: a gender perspective
Authors: Williams Colin , Gashi Ardiana 
Published: May 2021

PurposeDespite a widespread assertion that wages are lower in the informal than formal economy, there have been few empirical evaluations of whether this is the case and even fewer studies of the gender variations in wage rates in the formal and informal economies. Consequently, whether there are wage benefits to formal employment for men and women is unknown. The aim of this paper is to evaluate the wage differential between formal and informal employment for men and women.Design/methodology/approachTo evaluate the wage differential between the formal and informal economy for men and women, data are reported from a 2017 survey involving 8,533 household interviews conducted in Kosovo.FindingsUsing decomposition analysis and after controlling for other determinants of wage differentials, the finding is that the net hourly earnings of men in formal employment are 26% higher than men in informal employment and 14% higher for women in formal employment compared with women in informal employment.Practical implicationsGiven the size of the wage differential, the costs for employers will need to significantly increase in terms of the penalties and risks of detection if informal employment is to be prevented, along with more formal employment opportunities using active labour market policies for vulnerable groups, perhaps targeted at men (who constitute 82.8% of those in informal employment).Originality/valueThis is one of the first studies to evaluate the differentials in wage rates in the formal and economy from a gender perspective.
Quality matters: reviewing the connections between perceived quality and clothing use time
Authors: Aakko Maarit , Niinimäki Kirsi 
Published: May 2021

PurposeExtending the active lifetimes of garments by producing better quality is a widely discussed strategy for reducing environmental impacts of the garment industry. While quality is an important aspect of clothing, the concept of quality is ambiguous, and, moreover, consumers may perceive quality in individual ways. Therefore, it is important to deepen the general understanding regarding the quality of clothing.Design/methodology/approachThis paper presents an integrated literature review of the recent discussion of perceived quality of clothing and of the links between quality and clothing lifetimes; 47 selected articles and other literature obtained primarily through fashion/clothing/apparel journals were included in this review.FindingsThe main ideas from the articles are thematized into the following sections: the process of assessment, levels involved in assessment, multidimensional cues of assessment, and quality and clothing use times. The paper highlights that perceiving quality is a process guided by both expectations and experience, and assembles the various aspects into a conceptual map that depicts the connections between the conceptual levels involved in assessing quality. It also illustrates connections between quality and clothing use times.Research limitations/implicationsThis paper focused on perceived quality on a conceptual level. Further studies could examine and establish deeper links between quality, sustainability and garment lifespans.Originality/valueThe study draws together studies on perceived quality, presenting the foundational literature and key concepts of quality of clothing. It summarizes them in a conceptual map that may help visualize various aspects affecting the assessment of quality and deepen the general understanding of the quality of garments.
Transmission mechanism of simmelian ties on the knowledge spiral – the conducive combination of a high-performance work practice and knowledge fermentation
Authors: Kang Xin , Zhao Danni , Liu Qiang 
Published: May 2021

PurposeThe purpose of this paper is to analyse how different strengths of simmelian ties affect knowledge spirals and investigate which major factors affect the influence of simmelian ties on knowledge spirals.Design/methodology/approachThe empirical data in this paper were collected through e-mail and interview questionnaires to R&D teams in high-tech manufacturing enterprises in China. The authors obtained 132 teams' valid responses. The interval decision-making trial and evaluation laboratory (interval DEMATEL) method, differential evolution (DE) algorithm and Bayesian structural equation modelling (BSEM) were employed to test the theoretical framework developed for this paper.FindingsThe results show that strong simmelian ties have positive associations with high-performance work practices (HPWPs). Meanwhile, weak simmelian ties have positive associations with HPWPs. Furthermore, HPWPs and knowledge fermentation play a conducive role in the relationship between simmelian ties and knowledge spirals.Originality/valueThis paper contributes in three ways. First, it extends research on the relational antecedents of knowledge spirals. Second, this paper extends the study of social capital related to knowledge spirals. Third, this paper elucidates less familiar factors relating HPWPs to knowledge fermentation by testing the mediating role of HPWPs in knowledge fermentation.
Earnings guidance: market pressure or corporate governance? Evidence from corporate innovation in China
Authors: Yang Daoguang , Wang Jiani , Chen Hanwen 
Published: May 2021

Purpose
This study aims to investigate whether and how earnings guidance affects corporate innovation.

Design/methodology/approach
Exploiting the setting of China, where the Shenzhen Stock Exchange has required all public firms listed on its ChiNext board to issue earnings guidance since 2012, this study uses a difference-in-differences (DID) methodology to examine the effect of earnings guidance on corporate innovation and further conducts cross-sectional analyzes from the information risk and monitoring demand perspectives. Moreover, the authors conduct path analysis to verify the possible channels through which corporate innovation is impeded by market pressure or improved through increased corporate transparency.

Findings
This study documents a positive relationship between earnings guidance and corporate innovation, as measured by the number of invention patents, indicating that the “corporate governance” hypothesis dominates in China. Cross-sectional analyzes show that this positive effect is more pronounced for firms subject to greater information risk and monitoring demand. Finally, the path analysis further confirms that earnings guidance improves innovation by increasing corporate transparency.

Practical implications
First, this study captures the bright side of mandatory earnings guidance and suggests that increasing the disclosure frequency can yield benefits for firms. Second, the findings imply that regulations, regardless of what they refer to, should be based on a country’s specific context.

Originality/value
First, this study provides evidence supporting the “corporate governance” argument based on the context of China and, thus contributes to the debate on earnings guidance. Second, this study enriches the literature on the economic consequences of earnings guidance. Third, the study extends research on the determinants of corporate innovation.
Human resources strategy as a catalyst for the success of the competitive strategy: an analysis based on alignment
Authors: Gonzalez-Benito Javier , Suárez-González Isabel , González-Sánchez Daniel 
Published: May 2021

PurposeCompetitive strategy is one of the key factors traditionally related to performance, but research explaining the mechanisms through which this strategy improves business results is scant. This study aims to shed light on this relationship by analyzing human resource management (HRM) strategy as an essential tool for transforming business strategy into results.Design/methodology/approachFocusing on two generic competitive strategies, the authors establish hypotheses on the need for alignment among four echelons: business strategy, HRM system objectives, HRM system capabilities and business performance. The authors test these hypotheses with structural equation modeling techniques using data provided by 204 industrial companies.FindingsThe results show that to get the most out of a competitive strategy based on quality differentiation, HRM system objectives and capabilities must be focussed on quality. In the same way, a competitive strategy based on innovation differentiation requires HRM system objectives and capabilities focussed on flexibility to achieve the maximum impact on performance. In this second case, alignment is fundamental in low dynamic environments.Originality/valueThis research not only provides additional evidence for the strategic relevance of the human resources (HR) function but also reveals the potential benefits of focusing on objectives and capabilities rather than on practices. Moreover, it shows that the role of HRM objectives and capabilities in the implementation of a competitive strategy can be shaped by factors beyond the company's control, such as environmental dynamism.
Curbing the drawbacks of digitization on psycho-social risks at work in educational institutions. Preliminary evidence from Europe
Authors: Palumbo Rocco 
Published: May 2021

Purpose
Digitization is reshaping the functioning of educational institutions. Large attention has been paid to the innovative service models enabled by digitization. However, the implications of digitization on employees’ well-being need further investigation. The purpose of this paper is to examine the effects of digitization on psycho-social risks at work in a large sample of European educational institutions.

Design/methodology/approach
Secondary data were collected from the third wave of the European Survey of Enterprises on New and Emerging Risks (ESENER). A serial mediation model was designed to obtain evidence on the implications of digitization on the psycho-social risks at work in 3,540 educational institutions. Alongside the direct implications of digitization on psycho-social risks, its indirect effects mediated by occupational health interventions and healthy workplace initiatives were investigated.

Findings
Digitization exacerbated psycho-social stressors at work. Increasing time pressures and intensifying work, digitization imperiled the employees’ well-being. Occupational health partially mediated the implications of digitization on psycho-social risks. Although healthy workplace interventions seemed to prevent the side effects of digitization on psycho-social risk, its mediating role was not statistically significant.

Practical implications
Digitization should be accompanied by interventions aimed at ensuring occupational health and at promoting a healthy workplace to minimize its drawbacks on psycho-social risks. Occupational health creates a greater awareness of the negative effects of digitization on work-related stressors. Healthy workplace initiatives contribute to enhancing the employees’ psycho-physical well-being.

Originality/value
This study reports the negative implications of digitization on psycho-social risks at work in educational institutions, envisioning some avenues for further development.
Determining the factors affecting brand authenticity of startups in social media
Authors: Fouladi Shayan , Ekhlassi Amir , Sakhdari Kamal 
Published: May 2021

Purpose
This paper aims to determine the affecting factors of the brand authenticity of startups in social media.

Design/methodology/approach
Using a qualitative method based on a grounded theory approach, this research specifies and classifies the affecting factors of brand authenticity of startups in social media through in-depth semi-structured interviews.

Findings
Multiple factors affecting the brand authenticity of startups in social media are determined and categorized as indexical, iconic and existential cues through this research. Connection to heritage and having credible support are determined as indexical cues. Founder intellectuality, brand intellectuality, commitment toward customers and proactive clear and interesting communications are identified as iconic cues. Having self-confidence and self-satisfaction, having intimacy with the brand and a joyful feeling for interactions with the community around the brand are determined as existential cues in this research. This research furthers previous arguments on a multiplicity of brand authenticity by shedding light on the relationship between the different aspects of authenticity and the form that different affecting factors can be organized together. Consumers eventually evaluate a strengthened perception of brand authenticity through existential cues that reflect the cues of other aspects (iconic and indexical) which passed through the goal-based assessment and self-authentication filter.

Research limitations/implications
The research sampling population can be more diversified in terms of sociodemographic attributes. Due to the qualitative methodology of this research, assessment of the findings through quantitative methods can be considered in future research.

Practical implications
Using the findings of this research, startup managers can properly build a perception of authenticity in their consumers’ minds by using alternate factors while lacking major indexical cues such as heritage. This research helps startup businesses to design their brand communications better to convey their authenticity to their audiences.

Originality/value
This research determines the factors affecting the authenticity of startup brands in social media. It also defines the process of authenticity perception through different aspects of brand authenticity.
When cooperation turns ugly: exploring the dark side of social capital
Authors: Strindlund Lena , Abrandt Dahlgren Madeleine , Ståhl Christian 
Published: May 2021

PurposeThis article explores theoretical assumptions regarding negative consequences of social capital in the empirical case of a failed cooperation project, and how these consequences are related to processes involving people, structures and environments.Design/methodology/approachThe article is based on a case study of a cooperation project within municipal labor market services. The methodology followed a theorizing process, where data were collected through ethnographical methods and analyzed in relation to existing concepts from theories describing negative effects of social capital and shadow organizing.FindingsThe results highlight how the development of negative social capital in the project can be understood through three relational processes, namely the social dynamics of insulation, homogenization and escalating commitment. The authors conclude that the quality of social capital is conditional upon complex interactions within social structures. Moreover, the results highlight the importance of studying organizing practices outside explicit structures, in order to identify the development of non-canonical practices and their consequences.Practical implicationsOrganizing cooperation projects that aim to bridge professional competencies or organizational boundaries have to be attentive toward informal organizing practices which if remaining unrecognized may grow and threaten the original intentions.Originality/valueThe study makes a theoretical contribution by combining a shadow organizing approach with literature on social capital. This combination proves especially useful for analyzing how organizational dynamics can influence the development of social capital into producing negative effects.