Mubeen Zafar, Muhammad Naeem Awais, Muhammad Asif, Amir Razaq and Gul Amin
The purpose of this research work is to harvest energy using the piezoelectric properties of ZnO nanowires (NW). Fabrication and characterization of the piezoelectric…
Abstract
Purpose
The purpose of this research work is to harvest energy using the piezoelectric properties of ZnO nanowires (NW). Fabrication and characterization of the piezoelectric nanogenerator (NG), based on Al/ZnO/Au structure without using hosting layer, were done to harvest energy. The proposed method has full potential to harvest the cost-effective energy.
Design/methodology/approach
ZnO NW were fabricated between the thin layers of Al- and Au-coated substrates for the development of piezoelectric NG. To grow ZnO NW, ZnO seed layer was prepared on the Al-coated substrate, and then ZnO NW were grown by aqueous chemical growth method. Finally, Au top electrode was used to conclude the Al/ZnO/Au NG structure. The Al and Au electrodes were used to establish the ohmic and Schottky contacts with ZnO NW, respectively.
Findings
Surface morphology of the fabricated device was done by using scanning electron microscopy, and electrical characterization of the sample was performed with digital oscilloscope, picoammeter and voltmeter. The energy harvesting experiment was performed to excite the presented device. The fabricated piezoelectric-sensitive device revealed the maximum open circuit voltage up to 5 V and maximum short circuit current up to 30 nA, with a maximum power of 150 nW. Consequently, it was also shown that the output of the fabricated device was increased by applying the stress. The presented work will help for the openings to capture the mechanical energy from the surroundings to power up the nano/micro-devices. This research work shows that NGs have the competency to build the self-powered nanosystems. It has potential applications in biosensing and personal electronics.
Originality/value
The fabrication of simple and cost-effective piezoelectric NG is done with a structure of Al/ZnO/Au without using hosting layer. The presented method elucidates an efficient and cost-effective approach to harvest the mechanical energy from the native environment.
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Muhammad Awais Azam, Jonathan Loo, Usman Naeem and Muhammad Adeel
Recognizing daily life activities and human behaviour from contextual information is a challenging task. The purpose of the research work in this paper is to develop a system that…
Abstract
Purpose
Recognizing daily life activities and human behaviour from contextual information is a challenging task. The purpose of the research work in this paper is to develop a system that can detect indoor and outdoor daily life activities of low entropy mobile people such as elderly people and patients with regular routines using non-intrusive sensor and contextual information.
Design/methodology/approach
A framework is proposed that utilises a hierarchical approach in which high-level activities are divided into sub-activities and tasks and recognises the high-level outdoor and indoor activities of daily life. Tasks are recognised at lower level from sensor data and then used by the “activity recogniser” at higher level to recognise the high-level activities. For outdoor activities recognition, wireless proximity data are used, whereas for indoor activities, object usage data obtained through radio frequency identification sensors are used.
Findings
For outdoor tasks, results have shown 100 per cent recognition for experiment 1 and a decrease in recognition from 100 to 82.7 per cent, respectively, for experiment 2-9 due to increase in the entropy of individual tasks. Outdoor activity recognition ranges from 84.1 to 100 per cent. For indoor tasks, generating alternative tasks sequences approach effectively recognised the single tasks that were conducted with objects without any order. Average indoor activity recognition rate remains above 90 per cent. The reason why this approach is able to detect the activities without their distinct features is the planning capability of the Asbru that is used in the modelling of high-level activities.
Originality/value
The novelty of this research work is a framework that utilises different types of sensor data and recognises both indoor and outdoor daily life activities of individuals.
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Awais Ur Rehman, Saqib Farid and Muhammad Abubakr Naeem
Motivated by lack of empirical research on sukuk (Islamic bonds) defaults and factors influencing the credit risk in sukuk industry, the study investigates the impact of corporate…
Abstract
Purpose
Motivated by lack of empirical research on sukuk (Islamic bonds) defaults and factors influencing the credit risk in sukuk industry, the study investigates the impact of corporate governance (CG) practices and corporate social sustainability (CS) disclosures on default risk of Islamic bonds in an emerging market.
Design/methodology/approach
In the Malaysian context the authors use generalized method of moments (GMM) to examine the mitigating effect of CG structure and CS disclosures on distance to default (DD) of sukuk issuers.
Findings
The results show that although both CG and CS have a significant and positive relationship with distance to default, the contribution of CS to augment DD is higher. Moreover, different CG variables have a varied relationship with distance to default, while the association is positive for all three pillars of CS, videlicet economic, social and environmental sustainability.
Practical implications
The findings of the study hold important implications for issuers, subscribers and regulators in the sukuk industry.
Originality/value
Limited research investigates the relationship between CG, CS and default risk of Islamic bonds. In light of this, the study attempts to fill the theoretical void in literature by examining the relationship among the underlying variables.
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Inam Ul Haq, Usman Raja, Muhammad Umer Azeem and Naeem Bajwa
Extending the efforts of previous scholars, this study examines how abusive supervision undermines employees’ ability to meet performance expectations and propensity to engage in…
Abstract
Purpose
Extending the efforts of previous scholars, this study examines how abusive supervision undermines employees’ ability to meet performance expectations and propensity to engage in helping behavior. Specifically, we investigate a hitherto unexplored mediating role of quality of work life (QWL) in this relationship. We further suggest that employees’ psychological resources, namely willpower and waypower, act as protective shields against this harmful process.
Design/methodology/approach
We tested the proposed hypotheses using multisource (self- and supervisor-rated) three-wave time-lagged data (N = 185) collected from employees and their supervisors in eight organizations that operate in the service sector of Pakistan.
Findings
The findings corroborate our predicted hypotheses. The results indicate that employees' exposure to abusive supervision deteriorates their quality of work life (QWL), hindering their ability to deliver expected performance and tendency to help other colleagues. However, this negative process is less pronounced for employees who possess sufficient psychological resources of willpower and waypower.
Practical implications
This study provides valuable insights to organizations by explicating the process that undermines employees’ ability to channel their energies into performance-enhancing activities when faced with humiliation from their supervisors.
Originality/value
This study details three previously unexplored factors that explain how and when abusive behavior steers service sector employees away from meeting performance expectations and assisting colleagues, via thwarting their quality of work life.
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Sitara Karim, Muhammad Abubakr Naeem and Rusmawati Binti Ismail
This study serves two objectives; first, it examined the impact of ownership structure and board characteristics on firm value; second, the moderating effects of board gender…
Abstract
Purpose
This study serves two objectives; first, it examined the impact of ownership structure and board characteristics on firm value; second, the moderating effects of board gender diversity (women appearance on board) and board ethnic diversity (Chinese, Indian, and Foreign ethnicities) have been examined on the relationship between ownership structure, board characteristics, and firm value.
Design/methodology/approach
The dynamic model, system generalized method of moments (S-GMM hereafter), is employed to control potential dynamic endogeneity, reverse causality, simultaneity and unobserved heterogeneity persistent in corporate governance-performance relationships during 2006–2017 of 483 Malaysian listed companies.
Findings
Findings pertaining to objective one reveal that there is a weak linkage between ownership structure and firm value, whereas board characteristics significantly affect firm performance based on resource dependence theory. While considering the results of objective two, there is mixed evidence of moderating impact of board gender and ethnic diversity on ownership structure, board characteristics and performance nexus.
Practical implications
The findings of the study are practically significant for regulatory bodies, namely, Bursa Malaysia, Securities Commission (SC) Malaysia, and policymakers to develop guidelines for ownership structure variables. Moreover, Malaysian firms need to disperse their concentrated ownership structure for enhanced firm value. In addition, board characteristics significantly affect firm performance in Malaysian listed companies.
Originality/value
The paper contributes to multiple aspects: first, it examined the impact of ownership structure and board characteristics on firm performance. Second, the moderating effect of board gender and board ethnic diversity contributes to research significant and valuable for the researchers and practitioners. Finally, the study employed S-GMM, controlling for dynamic endogeneity considered a main econometric problem for CG-performance relationships.
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Usman Naeem, Rabih Bashroush, Richard Anthony, Muhammad Awais Azam, Abdel Rahman Tawil, Sin Wee Lee and M.L. Dennis Wong
This paper aims to focus on applying a range of traditional classification- and semantic reasoning-based techniques to recognise activities of daily life (ADLs). ADL recognition…
Abstract
Purpose
This paper aims to focus on applying a range of traditional classification- and semantic reasoning-based techniques to recognise activities of daily life (ADLs). ADL recognition plays an important role in tracking functional decline among elderly people who suffer from Alzheimer’s disease. Accurate recognition enables smart environments to support and assist the elderly to lead an independent life for as long as possible. However, the ability to represent the complex structure of an ADL in a flexible manner remains a challenge.
Design/methodology/approach
This paper presents an ADL recognition approach, which uses a hierarchical structure for the representation and modelling of the activities, its associated tasks and their relationships. This study describes an approach in constructing ADLs based on a task-specific and intention-oriented plan representation language called Asbru. The proposed method is particularly flexible and adaptable for caregivers to be able to model daily schedules for Alzheimer’s patients.
Findings
A proof of concept prototype evaluation has been conducted for the validation of the proposed ADL recognition engine, which has comparable recognition results with existing ADL recognition approaches.
Originality/value
The work presented in this paper is novel, as the developed ADL recognition approach takes into account all relationships and dependencies within the modelled ADLs. This is very useful when conducting activity recognition with very limited features.
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The use of social media and information exchange increased during Covid-19 pandemic because people are isolated and working from home. The use of social media enhances information…
Abstract
Purpose
The use of social media and information exchange increased during Covid-19 pandemic because people are isolated and working from home. The use of social media enhances information exchange in a global society, therefore customers are uncertain and not in a better position to take decisions before the situation goes worst everywhere in the world. The current study helps to understand how social media facilitate social and global engagement and information exchange which ultimately leads to the development of the customer psychology of stockpiling. This study aims to develop a research framework which helps to understand the customer psychology of stockpiling during a global pandemic.
Design/methodology/approach
This study opted for a social constructionist approach because it can help to understand both individual and social subjective realities with respect to stockpiling behaviour due to the fear and risk of Covid-19 pandemic. For this purpose, the researcher collected data from 40 customers of UK retail stores who actively use social media. The data were collected during telephonic interviews and thematic analysis was used for data analysis.
Findings
Results highlighted that institutional communication and social public interpretation of uncertainties and risk enhanced misinformation and sensationalism through social media platforms; therefore, stockpiling behaviour increased during Covid-19 pandemic. The fear of items being out of stock, illness, misinformation, family fear and going out were some of the possible causes that led to the development of panic stockpiling behaviour. The global uncertainty proof, as well as a public social consensus for staying at home and protecting the future also increased customers’ intention to buy in bulk for their future. Although social media played an important role in transferring relevant and timely information, it also increased uncertainty and social proof which may have led to stockpiling of retail products.
Research limitations/implications
The results of this study are beneficial for understanding how Covid-19 creates and enhances uncertainties and risks at both global and national level which developed into customer panic stockpiling behaviour, even when there is no promotional scheme or decrease in prices. This study helps marketers understand the psychology of customer stockpiling during a global pandemic. This study also helps to understand the role of social media, which promotes social interpretations of uncertainties and risk which ultimately enhance panic stockpiling among customers.
Originality/value
Limited research is available which provides an understanding of how social media can play a role in socially generated uncertainties and risks, which enhance misinformation and sensationalism, as well as the development of stockpiling behaviour. This study provided a stockpiling behaviour model based on the theory of uncertainty and social proof. The results of this study are unique as there is limited literature available which connects social media, uncertainties and risk, Covid-19 pandemic and stockpiling behaviour among educated people.
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Muhammad Burhan, Omar Abou Hamdan, Hussain Tariq, Zahid Hameed and Rana Muhammad Naeem
This study examines the influence of contextual factors (e.g. age and ownership type) on HRM formality (including the underlying functions of recruitment, selection, training and…
Abstract
Purpose
This study examines the influence of contextual factors (e.g. age and ownership type) on HRM formality (including the underlying functions of recruitment, selection, training and development, performance appraisal and compensation) in SMEs.
Design/methodology/approach
Data were collected through a quantitative survey of 300 owners/managers of services, manufacturing and trade SMEs in Pakistan.
Findings
Firm age, association with a larger parent entity, existence of a strategic business plan and the presence of a human resource information system (HRIS) are positively related with higher HRM formality. Firm size, family ownership and exporting characteristics had no association with formality.
Practical implications
This study suggests a highly influential role for contextual factors in shaping HRM practices in Pakistani SMEs. Since the lack of a strategic approach towards human resource development is directly linked to the inferior performance of SMEs in Pakistan, this study provides an understanding of the contextual institutional setting that shapes the nature of HRM practices. The findings inform both SME owners/managers and policy makers.
Originality/value
Institutional influences on HRM systems have attracted attention but organisational factors are less often studied. Studies mostly relate to Western contexts and lack perspectives from SMEs. The findings of this empirical investigation highlight the importance of context specific research given the different nature of institutional settings.
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Customers are increasingly interested in reading discussions, experiences, recommendations and reviews on social media platforms related to services and products in which they are…
Abstract
Purpose
Customers are increasingly interested in reading discussions, experiences, recommendations and reviews on social media platforms related to services and products in which they are highly interested. The purpose of this paper is to find the availability of user-generated content (UGC) in the context of Islamic banks and how it can enhance the level of brand engagement and purchase intention of customers.
Design/methodology/approach
The methodology for this research is designed by following the features of qualitative research methods and a social constructivism approach. Furthermore, non-directive and semi-structured in-depth interviews are constructed to accumulate research data from marketing teams and customers of Islamic banks. The respondents have been carefully chosen on the basis of purposive sampling and their level of awareness related to Islamic banks.
Findings
Islamic banks are more frequently using traditional marketing tools that are unable to enhance levels of information among the targeted population and prove an expensive way of marketing. The findings reveal that Islamic banks lag behind in adopting the latest information exchanging technologies compared to conventional banking systems. A lack of skilled people, reputation and trust, lack of e-marketing strategy and lower levels of investment in social media platforms are major barriers to generate UGC, brand engagement and purchase intention among the targeted market of Islamic banks.
Practical implications
The effective and competent use of various social networking platforms can enhance UGC related to Islamic banking products and services. UGC can generate interactive communication, services reviews, feedbacks, intention to purchase, social influence, social trust and positive customer perception among the targeted population of Islamic banks. The study has summarized and offered practical recommendations to show how Islamic banks can address challenges and enjoy a high level of profitability compared to conventional banking systems.
Originality/value
The present study uncovered the steps that must be taken by the top management of Islamic banks to enhance levels of awareness, online product reviews and recommendations, e-word of mouth and purchase intentions of the targeted market. The study enhanced understanding regarding how a higher level of investment in social networking platforms, safe and secure banking systems and skilled IT professionals can address the challenges of Islamic banks. Furthermore, these factors can create positive UGC, social influence, social brand engagement and purchase intention of customers in Islamic banks. These primary factors must be considered by Islamic banks to compete with conventional banking products and services.
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Ammar Ahmed, Muhammad Aqeel and Naeem Aslam
The monetary and psycho-social ramifications of the COVID-19 pandemic have been extensive and unimaginable around the globe. The purpose of this study was to have a psycho-social…
Abstract
Purpose
The monetary and psycho-social ramifications of the COVID-19 pandemic have been extensive and unimaginable around the globe. The purpose of this study was to have a psycho-social analysis of people confronting this situation and its impact in the situation of a health crisis on them.
Design/methodology/approach
In the current study, participants were divided according to their different backgrounds and professions based on the types of measures taken by the Pakistani government to limit the spread of the virus and people who are not disturbed by any of the measurement categories but are troubled by the coronavirus. The interviews based on five open-ended questions were conducted with the eight participants, comprising questions that helped participants in remembering and realizing the purpose of the interview in the mode of an open questioning. Phenomenological interpretative analysis was used to understand how participants make meaning of the phenomenon being studied, an in-depth analysis of the human subject was considered in its singularity, and personal accounts and experiences were noted regarding this pandemic.
Findings
The results indicated that the participant’s experiences were marked by stress, insecurity, anger, fear, anxiety, traces of painful emotions and a feeling of weakness. Also the prevalence of unknown precariousness and vulnerability of coronavirus aggravated the psychological frailness among people existing in an anxiety-prone situation created by the novel coronavirus. Confronted with these painful experiences, the participants however, used a variety of cognitive and behavioral efforts which needs to be strengthened by psychological care.
Research limitations/implications
This study based on qualitative method was performed on diverse socio-professional levels, giving an insight to what they are undergoing, their current fears, desires and their feeling. The outcome of this study reveals traces of uncertainty, anxiety, fears, insecurity and hidden imminent death from coronavirus, therefore highlighting a need for immediate psychological interventions.
Originality/value
This study explores the individual understanding regarding current coronavirus pandemic situation on subjective lived experiences and psychological health in an anxiety-prone context manifested by the health crisis created by the novel corona virus.