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The purpose of this study is to theoretically probe the shape impacts of nano-particle on boundary layer flow of nano-fluid toward a stretching cylinder with heat-transmission effects. The base fluid used for this study is pure water, and aluminum oxide nano-particles are suspended in it. Four different shapes of nano-particle, namely, cylindrical, brick, platelets and blades, are considered to carry out the study.

The problem is modelled mathematically and the nonlinear system of equations is attained by using appropriate transmutations. The solution of transmuted equations is achieved by utilizing a shooting technique with Fourth-Fifth order Runge–Kutta Fehlberg scheme. Numerically attained results are elucidated through graphs and tables which are further compared under limiting cases with existing literature to check the validity of the results.

It is observed that fluid velocity and temperature of cylindrical shaped water nano-fluids are more than the nano-fluid having brick-shaped nano-particles. Moreover, it is seen that the nano-fluids suspended with platelets-shaped nano-particles have higher velocity and temperature than the nano-fluids containing blade-shaped nano-particles. The curvature parameter and nano-particles volume fraction have increasing effects on flow velocity and temperature of nano-fluids containing all types of nano-particle shapes.

Numerous authors have examined the impacts of nano-particle shapes on characteristics of heat transfer and fluid flow. However, to the best of the authors’ knowledge, the shape impacts of nano-particles on boundary layer flow of nano-fluid toward a stretching cylinder with heat-transmission effects have not been discussed. So, to fulfill this gap, the present paper explicates the impacts of various nano-particle shapes on Al₂O₃–water-based nano-fluid flow past a stretching cylinder with heat-transfer effects.

The purpose of this paper is to analyze to what extent and in what ways signaling theory has been explored within the field of international marketing. This paper systematically reviews the use of signaling theory in the field of international marketing. Communication is a core aspect of the international marketing process. Research in this field has explored effective and unique ways of improving the communication flow to reduce the asymmetry of information between international consumers and the firm. This notion is adopted, enhanced and strengthened by signaling theory. Signaling theory has recently received the attention of international marketing scholars.

The systematic review methodology was applied for the purpose of identifying the relevant studies. We extracted academic articles over the last 23 years from the domain of international marketing that directly contribute to signaling theory based on 57 journal articles extracted through the systematic review process.

Based on systematic research the results reveal that the topic has grown and continues to expand within the broader international marketing field. We offer a theoretical conceptual framework to better understand signaling theory in the context of international marketing.

The authors map and critically evaluate the use of signaling theory in international marketing. Relevance of signaling theory in international marketing is growing and authors present an integrative framework that organizes the existing literature, and provides scholars to further expand on emerging themes of the domain. The paper offers some useful future research directions.

Digital financial inclusion is a need of the recent era in order to flourish the growth of economies as well as businesses and individuals. Thus, varieties of digital technologies are launched to provide ease and leverage to customers’ financial needs. Among the well-known digital technologies, Fintech emerged as a well-known and accepted form of digital technologies. However, the acceptance level is much lower, especially in developing sides of the world like Pakistan where issues related to cyber-security are the major hindrance in the way of digitization and n-tier online payments. However, with a massive youth population, Pakistan also has the opportunity to use Fintech as the major tool for economic and social development. Therefore, this chapter has been written purposely to shed light on the importance, use, and role of Fintech in the growth of developing countries like Pakistan. The purpose is to increase the knowledge of youth about financial technologies especially Fintech so they may embrace their abilities with technological innovation, especially for their financial needs. On the other side, the chapter will also address the lack of research on this emerging trend to diverge the focus of researchers and academicians towards Fintech and its uses, scope, implications, and benefits for developing countries.

This study aims to analyze the connection between servant leadership and the promotive and prohibitive voice behavior of employees. In addition, this study explained how servant leadership affects promotive and prohibitive voice behavior through meaning.

For this study, data were collected from employee–manager dyads employed in the service sector. Each of the waves was initiated two months after the first wave. Finally, 286 useful responses were obtained. The collected data was analyzed through covariance-based structural equation modeling.

Servant leadership is related with meaning, promotive voice behavior and prohibitive voice behavior. Meaning is found to mediate the relationship between servant leadership and the two facets of voice behavior.

To the best of the authors’ knowledge, this study is the first to explore the mediating role of meaning relating servant leadership to promotive and prohibitive voice behavior.

The paper endeavours to propose a Pakistani model of diversity management that is consistent with Pakistan's unique culture and socio‐political context.

The paper offers an analysis of the speeches and ideology of Muhammad Ali Jinnah, the founder of Pakistan, in an attempt to outline his vision of diversity and equality of opportunities in Pakistani society.

The analysis identifies four key dimensions of Jinnah's vision: first, democratisation ensuring the participation of all groups of people in socio‐economic and political spheres of life. Second, an egalitarian version of Islam, considered consistent with the principles of social justice and equal opportunity. Third, the implementation of a strict rule of law with no room for favouritism and discrimination. And fourth, special protective measures for minorities, women and other disadvantaged groups. The four dimensions are on the whole inclined towards a social case of diversity management.

A diversity management model based on Jinnah's principles may help Pakistani organisations to more effectively manage the country's diverse human resources. With its focus on Islamic egalitarian principles, the model may also be useful for diversity management in other Muslim majority countries.

The concept of diversity management remains largely unexplored in Islamic society. In this respect, the paper offers a unique socio‐economic perspective of the population and workforce diversity.

The purpose of this paper is to describe a normative perspective of employment relations in Islam.

The perspective on employment relations offered in this paper is based on a reading of the principal Islamic texts (the Qur'an and the hadith) and a review of the literature on Islamic economics.

Despite varied interpretations and practices of the economic system in Islam, it is possible to identify a common emphasis on ethical conduct of employers and employees and social justice in Islamic ideology.

Given the paucity of research on employment relations in Islam, the paper offers an original perspective on this topic.

Fintech businesses have the tendency to revolutionize the entire world. Especially, the tasks associated with banking needs, and therefore, there is a significant scope for Fintech in the banking industry. Although when the country’s major population is unbanked and most of the population is also financially excluded, then the scope of Fintech gets exaggerated for microfinance institutions (MFIs), and therefore, the significance of Fintech for MFIs is much higher than the commercial and Islamic banks. Hence, this chapter has been written purposively to illuminate the impact, role, significance and implications of Fintech for MFIs in Pakistan in order to boost the knowledge and understanding of diverse stakeholders. The specialty of this chapter is that it is written specifically with reference to Pakistan as there is least research work with respect to the application of Fintech in MFIs. Similarly, the chapter also contains the anatomy of the value chain activities of MFIs and their linkage with the role of Fintech applications in boosting the performance of MFIs. Last, but not the least, the chapter also has a detailed discussion on factors that are required to boost the usage of Fintech in the MFI sector. Therefore, this chapter is pervasive for academicians, researchers, entrepreneurs, intrapreneurs and students for grasping, understanding and applying recent knowledge towards the betterment of academic and pragmatic activities.

In recent times, mobile banking has become the best alternative for transactions associated with payments like bills, fees, and peer-to-peer payments. Therefore, the pace of adoption is increasing day after other. However, the numbers of customers are not equal to the expectations as there are several challenges and threats hindering in the way of excellence and growth of mobile banking. Therefore, this chapter has been written purposively to address all the elements that are associated with the use of mobile banking with special emphasis on Pakistan and other developing sides of Asia. In fact, concern towards Asian sides is mandatory as the continent has the massive charm to attract users towards the use of mobile banking, but there is a need for proper policy and concern from stakeholders in order to give a push to the technology, which is fruitful for society, environment, as well as economy. The study includes an in-depth discussion on factors that need attention to make the study implicative and thorough for conducting further research in the field of Fin-Tech and mobile banking.

The study aims at providing a reliable system of real-time monitoring for underground mine and tunnels which detects any structural change in the network and reconfigures it for resuming the data delivery process. In high stress environments, e.g. underground mines and tunnels, real-time activity monitoring is an emerging issue. Wireless sensor networks (WSNs) play a key role in ensuring the safety of people working in underground mines and tunnels. WSN not only provide real-time monitoring of underground environment but also detects any structural change in the network itself.

In this paper, results of empirical implementation of a re-configurable WSN, capable of self-healing approach, reconfigure the network connectivity upon failure or addition of nodes in the system. An open-source radio-frequency identification standard for WSN, named as DASH7, is used for practical implementation. The proposed system is capable of determining cluster breakage by sudden disruptions caused by roof falls, explosions and node failures, sensor coverage hole, node re-addition to the network and distress priority signal generation by the miner.

The proposed platform contributes to re-attain network state for establishing a communication link with fusion center in terms of: instant and accurate detection of collapse holes, acceptable error rate, time to re-attain network state, rapid distress signal propagation and low deployment cost. This platform is deployed in four different environments of anechoic chamber, hallway, outdoor and underground mine environment, to test the aforementioned scenarios using DASH7-compatible Bitsense Sensor Motes operating at 433 MHz. The effectiveness of the proposed approach has been experimentally validated for the single and multiple adjacent and disjoint node failures in all the four environments.

The number of monitoring systems was implemented for safety assurance in high stress environments before, but the novelty of our platform is long range, cost effectiveness, quick response to any structural change in the network, rapid and accurate data delivery using WSN operated on DASH7 protocol stack.