bluuebunny/crossref_metadata_2025_split huggingface dataset:
Changes in the three-dimensional microscale topography of human skin with aging impact its mechanical and tribological behavior
Authors: Diosa Juan G. , Moreno Ricardo , Chica Edwin L. , Villarraga Junes A. , Buganza-Tepole Adrian 
Published: October 2020

AbstractHuman skin enables interaction with diverse materials every day and at all times. The ability to grasp objects, feel textures, and perceive the environment depends on the mechanical behavior, complex structure, and microscale topography of human skin. At the same time, abrasive interactions, such as sometimes occur with prostheses or textiles, can damage the skin and impair its function. Previous theoretical and computational efforts have shown that skin’s surface topography or microrelief, is crucial for its tribological behavior. However, current understanding is limited to adult surface profiles and simplified two-dimensional simulations. Yet, the skin has a rich set of features in three dimensions, and the geometry of skin is known to change with aging. Here we create a numerical model of a dynamic indentation test to elucidate the effect of changes in microscale topography with aging on the skin’s response under indentation and sliding contact with a spherical indenter. We create three different microrelief geometries representative of different ages based on experimental reports from the literature. We perform the indentation and sliding steps, and calculate the normal and tangential forces on the indenter as it moves in three distinct directions based on the characteristic skin lines. The model also evaluates the effect of varying the material parameters. Our results show that the microscale topography of the skin in three dimensions, together with the mechanical behavior of the skin layers, lead to distinctive trends on the stress and strain distribution. The major finding is the increasing role of anisotropy which emerges from the geometric changes seen with aging.
Al Meezan Investment Management Limited: evolution of Sharīʿah-compliant mutual funds
Authors: Sharif Saqib , Ahson Sarwat , Noor Hina 
Published: October 2020

Learning outcomes
This case serves as a useful backdrop for discussing a few important conceptual frameworks in the field of finance. The dilemmas are still evolving for Sharīʿah-compliant asset management company (AMC); i.e. Al Meezan, and may seem complex to the students – particularly in the Pakistan’s financial structure – but framing the discussion from a market perspective ought to help the students of finance.

Case overview/synopsis
This case study focuses on Al Meezan Investment Management Limited (Al Meezan) journey since inception. Al Meezan is a full-fledged Sharīʿah-compliant AMC and one of the major players in the mutual funds industry of Pakistan. Al Meezan offers a comprehensive range of Sharīʿah-compliant investment solutions especially designed to meet the financial goals of their existing and potential clients. The case study covers all the key events before the inception of Al Meezan, from late 1990s till March 2020. The case is based on interview with chief executive officer (CEO) (the protagonist) of Al Meezan. The case also covers various challenges faced by Mohammad Shoaib, CEO and his senior team, to make Al Meezan a vibrant institution offering Islamic financial services.

Complexity academic level
This case is aimed at undergraduate students in their final year (i.e. taking electives in the field of Finance/Islamic Finance) or graduate students majoring in Finance/Islamic Finance.

Supplementary materials
Teaching notes are available for educators only.

Subject code
CSS1: Accounting and Finance.
Examining the evidence of risk spillovers between Shanghai and London non-ferrous futures markets: a dynamic Copula-CoVaR approach
Authors: Shen Hong , Tang Yue , Xing Ying , Ng Pin 
Published: October 2020

PurposeThis paper aims to examine the evidence of risk spillovers between Shanghai and London non-ferrous futures markets using a dynamic Copula-CoVaR approach.Design/methodology/approachWith daily data, the marginal distributions and optimal Copula functions are determined using the kernel estimation method and squared Euclidean distance test. The conditional value-at-risk and the conditional value-at-risk spillover rate are computed from the Copula estimated parameters based on the Copula-CoVaR model. Also, the dynamic correlation coefficient between the two futures markets is investigated.FindingsThe empirical results are as follows: overall, the risk spillover effect exerted by the London Metal Exchange on the Shanghai Futures Exchange is more significant than vice versa. Moreover, the degree of risk spillovers exerted by the London Metal Exchange on the Shanghai Futures Exchange for zinc and copper are more significant when they are depressed in the London Metal Exchange. Moreover, the dynamic of the correlation between the Shanghai and London futures markets is attributed to be largely due to changes in the global economy.Research limitations/implicationsThe Copula-CoVaR model used in this paper is suitable for measuring the risk spillovers between two different markets, while the risk spillovers across multiple markets or the consideration of multiple risk factors cannot be accurately captured using this framework. Multiple state variables to capture time variation in the conditional moments of return series will be a topic in future research.Practical implicationsThe results provide theoretical support for risk management and monitoring of the non-ferrous futures markets.Originality/valueThe ability of the Copula function to accurately describe a nonlinear relationship and tail correlation is harnessed to measure the risk spillovers, explore the degree and direction of risk spillovers and identify the source of risk spillovers. The global economy is incorporated as a macro factor to explore its inner connection with the dynamic of risk spillovers in the non-ferrous metal futures market.
The impact of COVID-19 on children from poor families in Ghana and the role of welfare institutions
Authors: Owusu Lorretta Domfeh , Frimpong-Manso Kwabena 
Published: October 2020

Purpose
This paper is focussed on answering the following questions: How are poor families surviving in this era of COVID-19? What is life for children from poor families? What has become of their reality? To understand the realities of poor families and children during COVID-19, specifically in Ghana, this paper aims to analyse how COVID-19 has affected children from poor families in Ghana and how welfare institutions can work to provide rapid help to such families.

Design/methodology/approach
COVID-19 is affecting different populations in almost all parts of the world. One group that is likely to experience challenges are children because they have to depend on others for their survival. This study, therefore, provides an expert opinion on the issues that children in Ghana might face because of the global public health pandemic. Nonetheless, this research relied on secondary data from articles, journals, related studies, textbooks and relevant web pages to support the points made in the paper.

Findings
COVID-19 has put a lot of undue economic and social pressure on poor families. Due to these pressures, children from such families are likely to suffer a higher risk of child labour and streetism. Furthermore, they may miss out on the social and economic benefits the school system provides such as the free meals provided for public schools by the Government of Ghana under the school feeding programme.

Originality/value
Admittedly, there have been numerous studies since the outbreak of C0VID-19 pandemic. However, this paper is the first paper discussing into detail how COVID-19 has affected children from poor families and addresses how state welfare institutions can leverage on the use of efficient management information system to identify and support poor families during and post-COVID-19.
Is the Sharia supervisory board a friend or an enemy of Islamic banks?
Authors: Baklouti Ibtissem 
Published: October 2020

PurposeThis paper is an empirical study of the effect of the characteristics of the Sharia supervisory board (SSB) on the financial performance of Islamic banks.Design/methodology/approachUsing 42 Middle East and North Africa (MENA) Islamic banks outside the Gulf Cooperation Council (GCC) and non-Islamic countries during the 2011/2018 period, a random-effects generalized lease square method for the regression analyzes is applied.FindingsThe obtained results show that the characteristics of the SSB affect the financial performance of Islamic banks. The results also affirm that a large-sized board of directors and the number of SSB meetings improve banking performance while the cross-mandate seems to destroy it. On the other hand, the SSB members’ competence and reputation and the proportion of women sitting in SSB have no impact on the financial performance of Islamic banks.Research limitations/implicationsThis paper gives a comprehensive literature survey on the effect of the characteristics of the SSB on the financial performance of Islamic banks.Practical implicationsThis study offers insights into the practitioner and Islamic banking regulators interested in enhancing the legitimacy of corporate governance in Islamic financial institutions.Originality/valueThis paper is among the few studies that investigate the effect of the characteristics of SSB on the financial performance of Islamic banks in particular in Islamic banks in the MENA region outside the GCC and in non-Islamic countries.
Challenges in settling non-conviction based civil confiscation of unexplained wealth
Authors: Kolarov Todor 
Published: October 2020

Purpose
The purpose of this paper is to evaluate the benefits and challenges, on the national and international level, associated with the settlement of cases involving non-conviction civil confiscation of unexplained wealth.

Design/methodology/approach
This paper is centered on evaluation of key aspects of settlement of civil confiscation of unexplained wealth cases. Conducting a review of settlement of confiscation cases and of non-conviction-based unexplained wealth regimes, this research evaluates the validity of the lead thesis.

Findings
Settlement of civil asset confiscation of unexplained wealth cases presents several challenges that call for mitigation.

Originality/value
This paper emphasizes the theoretical and practical issues on the national and international level related to settlement of cases involving non-conviction-based civil asset confiscation of unexplained wealth, with recommendations for development of legal principles for non-conviction based civil asset confiscation.
Local on-demand fabrication: microfactories and online manufacturing platforms
Authors: Montes Jose Orlando , Olleros F. Xavier 
Published: October 2020

PurposeThis article explores a particular on-demand fabrication unit, the microfactory (MF). It identifies and contrasts several MFs and proposes a taxonomy. This research also explores online manufacturing platforms (OMP) that complement certain MFs.Design/methodology/approachThis research implements a multiple case study (71 cases in 21 countries), triangulating data available on the web with interviews, virtual/physical tours and experiential research.FindingsThe results suggest that automation and openness are the main dimensions that differentiate the MFs. Using these dimensions, a taxonomy of MFs is created. MFs with relatively low automation and high openness tend to be innovation-driven microfactories (IDMFs). MFs with high automation and low openness levels tend to be customization-driven microfactories (CDMFs). And MFs with relatively low automation and low openness tend to be classic machine shops (MSs). There are two types of OMP: closed (COMPs) and multisided (MOMPs). MOMPs can be low-end or high-end.Practical implicationsIn a world where online platforms are becoming central to the reinvention of manufacturing, multisided online platforms and small fabricators will become strongly symbiotic.Originality/valueThis paper offers a clearer conceptualization of MFs and OMPs, which may help to better understand the reality of local on-demand fabrication. Moreover, it explores a new type of experiential research, which tries to describe and interpret firms through transactional activities. Many details of a firm that are difficult to capture via interviews and netnography can be revealed this way.
Strategy workshops with wider participation: trust as enabler
Authors: Pregmark Johanna E. , Berggren Rita 
Published: October 2020

PurposeA wider participation from outside the top management team can support the strategy creation and execution of firms through improving access to knowledge, increasing innovativeness and creating legitimacy for the strategy. However, creating a climate of trust where ideas are freely expressed and challenged is easier said than done. This paper thus focuses on trust in strategizing, in particular in strategy workshops with wider participation.Design/methodology/approachThe analysis is based on qualitative data from 10 strategy-making processes consisting of a total of 28 strategy workshops. Data were collected through interviews and joint reflections with the leaders, external facilitators and consultants, as well as through action research.FindingsThis study identifies three factors that influence trust in strategy workshops with wider participation, namelyopening up the conversation,clarity of the participative processanddelivering with honest intent. These factors could play crucial roles in creating the trust needed for wider participation in strategy workshops.Practical implicationsThis paper provides strategy actors (e.g. leaders, consultants) with actionable knowledge about what strategy workshops with a wider circle of participants require to create trust.Originality/valueThis study relates to the ongoing and increased interest in openness for strategy-as-practice in general and open strategy in particular. Moreover, it contributes to the discussion that the boundaries between strategizing and change tend to become blurry. Therefore, the present paper contributes to the theory and practice of strategy creation, strategy execution and change by investigating wider participation in strategy workshops.
Barriers to sustainable supply chain management implementation in Egyptian industries: an interpretive structural modeling (ISM) approach
Authors: Zayed Esraa Osama , Yaseen Ehab A. 
Published: October 2020

PurposeRecently, sustainability aspects are gaining importance among supply chain management (SCM) research field, hence this study aims to explore barriers to sustainable supply chain management (SSCM) implementation in Egyptian industries and the interrelationships among these barriers to provide a structured detailed model for barriers and suggest recommendations to deal with these barriers.Design/methodology/approachThe paper is an empirical study with a descriptive research approach using qualitative methodology. Data were collected through interviewing experts involved in sustainability implementation within supply chain functions. Afterward interpretive structural modeling (ISM) for barriers was conducted to develop a structured model representing possible interrelationships between barriers.FindingsFindings have reported slight differences among barriers to SSCM implementation in Egyptian industries other than those stated previously. ISM analysis helped in shaping barriers into a detailed structured model where interrelationships among barriers can be clearly defined. Additionally, based on the data collected and the ISM model, this study managed to offer recommendations to deal with these barriers.Research limitations/implicationsFuture researches might consider developing ISM analysis for a smaller number of barriers, or focus on each of internal and external barriers individually to minimize ISM analysis complexity and enhance its accuracy. As ISM analysis technique is highly dependent on experts' opinions and experience, validation is highly recommended either by structural equation modeling (SEM) or linear structural relationship approach.Practical implicationsThis study provides insights for managers about internal and external barriers to SSCM implementation in Egyptian industries, a detailed structured model for interrelationships among these barriers and recommendations to deal with these barriers.Originality/valueThis study is one of the very first studies to implement ISM for barriers to SSCM on data collected from Egyptian industries. Consequently, it will direct further research focusing on developing strategies or recommendations to overcome these barriers.
A scale for credibility evaluation of scientific websites: findings from a cross-contextual approach
Authors: Keshavarz Hamid , Esmaeili Givi Mohammadreza 
Published: October 2020

PurposeDue to the extreme importance of evaluating the credibility of information available on a huge number of scientific websites, the present research aimed to develop a measurement scale based on a validated questionnaire incorporating the novel conceptualization of the concept credibility by Hovland and Weiss (1951).Design/methodology/approachRegarding the descriptive and survey nature of the research, the data were collected based on a stratified random sampling among the 672 students in two different contexts at five top nonmedical universities and, with a one-year interval, at three top medical universities in Iran. High reliability and construct validity were reported by testing the convergent and discriminant validity of the main instrument.FindingsConfirmatory factor analysis (CFA) resulted in a scale named SWCRED including eight components and 28 items. Considering path coefficients (?) and t-statistics (t-value), a significant relationship was reported between all components and the main variable of credibility in the final scale at a 99% confidence level (t = 2.57).Practical implicationsResults suggest that the information credibility of scientific websites, especially in the university contexts, can be measured by asking participants to rate how well eight components represent content including ethics, writing style, website appearance, website identity, professional information, accuracy, usability and interaction. The scale has a goodness of fit from the different indices and is of high validity for use in different educational and research settings.Originality/valueThe framework underlying the research has the required quality integrating a set of most important criteria for exploring the credibility evaluation of scientific web information by the students, which is useful for future-related studies.
The fish rots from the head down: a test of the trickle-down model of abusive supervision
Authors: Osei Hannah Vivian , Asiedu-Appiah Felicity , Anyimaduah Amoah Perpetual Akosuah 
Published: October 2020

Purpose
A major paradigm shift focusing on the dark side of leadership has generated lots of concern for organizations as leadership has cascading effects on employees’ behaviour. This study aims to understand negative behaviours in the organization as a system of interrelated interaction initiated from the top which trickles down to employees.

Design/methodology/approach
Drawing on the theories of social exchange and norms of reciprocity, social learning and displaced aggression, this study models how and when abusive supervision relates to employees’ task performance. The model is empirically tested and extended to cover mediation and moderation processes. Drawing data from 218 bank supervisors and employees, this study uses the structural equation modelling to analyse a trickle-down model of abusive supervision.

Findings
Results from multi-waved, multi-sourced data indicated a mediating effect on the abusive supervision–performance relationships and provided support for employees’ guilt proneness and emotional dissonance as moderators. Overall, the results provided support for a moderated mediation relationship in the trickle-down model.

Originality/value
This study provides new knowledge into the potential boundary conditions of employees’ guilt proneness and emotional dissonance in affecting the relationship between abusive supervision, counterproductive work behaviour and task performance.
An institutional perspective on workplace incivility: case studies from academia
Authors: Akella Devi , Eid Niveen 
Published: October 2020

PurposeThis research study looks at issues such as why does incivility occur, dynamics responsible for incivility with an emphasis on causes stimulated by the general context and its influence on the behavior of individuals, groups and organizations.Design/methodology/approachThis paper provides a fresh perspective on workplace incivility by integrating institutional theory with empirical data from two case studies from academic institutions located in different continents to understand incivility in organizations. A comparative case analysis across two different geographical regions is used to validate the argument that institutional antecedents can influence micro-level organizational events such as employee incivility despite variance in geographical locations and cultural dimensions.FindingsThe findings of the study reveal that academic institutions are subject to uncivil behaviors, which could be a direct offshoot of the historical and cultural beliefs of the society. The general context of the studied cases led to workplace incivility mainly in the form of racial prejudices and sectarianism transferred to the organizational day-to-day practice. The paper suggests a pragmatic view for possible interventions to humanize workplaces where it is better not to adopt a “one size fits all” recipe to deal with such a complex phenomenon.Originality/valueThis paper provides a macro-level analysis of workplace incivility by assuming an institutional perspective to explore the relationships if any between incivility experienced by employees within an organization and the wider political and historical structuration of the society.
Monetary policy uncertainty and stock market returns: influence of limits to arbitrage and the economic cycle
Authors: Paule-Vianez Jessica , Prado-Román Camilo , Gómez-Martínez Raúl 
Published: October 2020

Purpose
This paper aims to examine the impact that monetary policy uncertainty (MPU) has on stock market returns by taking into account limits to arbitrage and the economic cycle.

Design/methodology/approach
Using four news-based MPU measures, regression models have been applied in this study over a sample period from January 1985 to March 2020. The limits to arbitrage have been considered by taking Russell 1000 Value, Russell 1000 Growth, Russell 2000 Value and Russell 2000 Growth indices, and business cycles were established following the National Bureau of Economic Research.

Findings
A negative MPU impact on stock returns has been found. In particular, the most subjective and difficult to arbitrate stocks have been more sensitive to MPU. However, it could not be concluded that MPU has a greater or lesser impact on stock returns depending on the economic cycle.

Practical implications
The findings obtained are particularly useful for monetary policymakers showing the importance and need for greater control over the transparency of their decisions to maintain the stability of financial markets. The findings obtained are also useful for investors when selecting their investment assets at times of the highest MPU.

Originality/value
To the best of the authors’ knowledge, this is one of the few studies investigating the effect of MPU on stock market returns, and the first to analyse this relationship taking into account the economic cycle and limits to arbitrage.