Search results
1 – 10 of 10This paper aims to propose a Shariah-compliant multi-period fuzzy portfolio optimization model that accounts for Shariah compliance through purification processes and incorporates…
Abstract
Purpose
This paper aims to propose a Shariah-compliant multi-period fuzzy portfolio optimization model that accounts for Shariah compliance through purification processes and incorporates various Shariah constraints, including sustainability constraints. This model aims to ensure both ethical alignment and robust portfolio management while navigating modern financial complexities and fostering responsible and sustainable investment practices.
Design/methodology/approach
The methodology involves a dynamic programming method to solve the proposed program, with returns of the assets assumed to be trapezoidal fuzzy variables. This approach allows for the quantification of portfolio return and risk by the possibilistic mean and semivariance of the fuzzy returns, respectively. A numerical study based on real stock market data tests the efficiency of the proposed algorithm.
Findings
The research showcases the model’s effectiveness in managing Shariah-compliant portfolios under financial uncertainties and supports the importance of incorporating ethical and sustainability constraints in investment decisions. It highlights the capability of the proposed model to offer a structured approach to ethical investing within the Islamic finance framework.
Research limitations/implications
While the paper provides a solid foundation for Shariah-compliant portfolio optimization, it acknowledges the complexity and computational demands of the model. Future research could explore simplifying the model without compromising its ethical and Shariah-compliant principles.
Originality/value
This work introduces a novel integration of Shariah compliance with fuzzy portfolio optimization techniques, addressing the need for dynamic, ethical investment strategies in Islamic finance. The incorporation of purification processes and sustainability constraints into a fuzzy portfolio optimization model represents a unique contribution to the field.
Details
Keywords
Hasanuzzaman, Kaustov Chakraborty and Surajit Bag
Sustainability is a major challenge for India’s (Bharat’s) coal mining industry. The government has prioritized sustainable growth in the coal mining industry. It is putting forth…
Abstract
Purpose
Sustainability is a major challenge for India’s (Bharat’s) coal mining industry. The government has prioritized sustainable growth in the coal mining industry. It is putting forth multifaceted economic, environmental and social efforts to accomplish the Sustainable Development Goals (SDGs). This research aims to identify the factors for sustainable improvements in coal mining operations. Secondly, this study examines the intensity of causal relations among the factors. Thirdly, this study examines whether causal relations exist among the factors to be considered for sustainable improvement in coal mining operations. Lastly, the study aims to understand how the factors ensure sustainable improvement in coal mining operations.
Design/methodology/approach
An integrated three-phase methodology was applied to identify the critical factors related to coal mining and explore the contextual relationships among the identified factors. Fifteen critical factors were selected based on the Delphi technique. Subsequently, the fifteen factors were analyzed to determine the contextual and causal relationships using the total interpretive structural modelling (TISM) and DEMATEL methods.
Findings
The study identified “Extraction of Coal and Overburden” as the leading factor for sustainable improvement in coal mining operations, because it directly or indirectly influences the overall mining operation, environmental impact and resource utilization. Hence, strict control measures are necessary in “Extraction of Coal and Overburden” to ensure sustainable coal mining. Conversely, “Health Impact” is the lagging factor as it has very low or no impact on the system. Therefore, it requires fewer control mechanisms. Nevertheless, control measures for the remaining factors must be decided on a priority basis.
Practical implications
The proposed structural model can serve as a framework for enhancing sustainability in India’s (Bharat’s) coal mining operations. This framework can also be applied to other developing nations with similar sustainability concerns, providing valuable guidance for sustainable operations.
Originality/value
The current study highlights the significance of logical links and dependencies between several parameters essential to coal mining sustainability. Furthermore, it leads to the development of a well-defined control sequence that identifies the causal linkages between numerous components needed to achieve real progress towards sustainability.
Details
Keywords
Benjamin Thomas Gray, Matthew Sisto and Renee Conley
The purpose of this service user narrative and viewpoint article is to describe interprofessional and interpersonal barriers to peer support on a men’s mental health ward over the…
Abstract
Purpose
The purpose of this service user narrative and viewpoint article is to describe interprofessional and interpersonal barriers to peer support on a men’s mental health ward over the course of a year from a lived experience perspective.
Design/methodology/approach
A reflective journal was kept and participant observation was conducted over the course of the year.
Findings
There is sometimes a fissure and binary of “Us” and “Them” on the ward. In other words, staff can sometimes perceive peer support workers to be “one of us” (a member of staff) or “one of them” (a service user). For service users, the opposite is sometimes true: “one of us” (a service user) or “one of them” (a member of staff). Peer support workers must bridge this gap and strive to be “one of us” with both these groups, which is no easy task. A good ward manager or peer team leader can smooth over interprofessional differences and support the peer worker in their efforts of care towards the recovery of people with mental health problems.
Originality/value
Little has been written on this topic in a mental health inpatient setting as most papers address community peer support work, which is very different from peer support in hospital. This paper addresses one of the first peer support pilot projects in hospital of its kind in NHS England so is quite innovative and perhaps even unique.
Details
Keywords
Rabia Chahbounia and Abdellah Gantare
In emergency departments, effective communication is of utmost importance to ensure the safety of patients. However, communicating can be quite challenging when dealing with…
Abstract
Purpose
In emergency departments, effective communication is of utmost importance to ensure the safety of patients. However, communicating can be quite challenging when dealing with high-stress situations. This study aims to assess the efficacy of coaching workshops, informed by a transtheoretical coaching model, in managing communication challenges perceived by emergency nurses and enhancing their communication skills.
Design/methodology/approach
The study involved seven emergency room nurses working at a public hospital in Morocco. The data were gathered through various instruments, including observation grids, interviews and pre- and post-test questionnaires.
Findings
The study identified prevalent challenges in communication among nurses, notably difficulties in accurately interpreting messages when faced with confrontational attitudes from colleagues or superiors. Additionally, some nurses exhibited asymmetrical communication patterns, prioritizing their own perspectives over others' during interactions. The findings revealed a statistically significant disparity between pre- and post-test scores (P = 0.017). The nurses’ mean score has improved by 5.14 after attending the four workshop coaching experience, passing from 5.71 in the pre-test to 10.85 in the post-test.
Originality/value
This is the first study in Morocco to evaluate the effectiveness of coaching workshops guided by a transtheoretical coaching model in improving communication skills and overcoming communication barriers among working emergency nurses.
Details
Keywords
Sheng Liu, Qing Mai and Xiuying Chen
Many developing countries have encountered frequent pollution accidents during their rapid development, while the previously weak environmental insurance systems could seriously…
Abstract
Purpose
Many developing countries have encountered frequent pollution accidents during their rapid development, while the previously weak environmental insurance systems could seriously undermine the progress of sustainable development. Some developing countries like China has initiated and strengthened environmental pollution liability insurance, so how effective this system would be in resolving enterprises environmental risks need to be further revealed.
Design/methodology/approach
This research identifies the possible consequence that compulsory environmental pollution liability insurance pilot (CEPLIP) policy would bring to the risk-taking capacity of heavy-polluting corporations of China by the Differences-in-Differences (DID) approach.
Findings
The result supports the implementation of CEPLIP policy in increasing corporate risk-taking capacity. Furthermore, the CEPLIP policy can promote the corporate’s risk-taking capacity by reducing financial distress constraints and enhancing trade credit, supporting its dual role of “fallback effect” as well as “external supervision effect” of environmental insurance. As a result of heterogeneity test, the policy is more pronounced in enterprise samples with mature life cycle stage or lower industrial concentration degree. Similarly, it is more significant in enterprise samples owned better environmental management capabilities or greater strategic deviance.
Originality/value
This paper verifies the effectiveness of the CEPLIP policy by strengthening its supervision mechanism and restraining opportunistic behavior tendency and provides implications for alleviating increasing environmental risk pressure and building more sustainable environmental protection management systems.
Details
Keywords
Baris Kirim, Emrecan Soylemez, Evren Tan and Evren Yasa
This study aims to develop a novel thermal modeling strategy to simulate electron beam powder bed fusion at part scale with machine-varying process parameters strategy…
Abstract
Purpose
This study aims to develop a novel thermal modeling strategy to simulate electron beam powder bed fusion at part scale with machine-varying process parameters strategy. Single-bead and part-scale experiments and modeling were studied. Scanning strategies were described by the process controlling functions that enabled modeling.
Design/methodology/approach
The finite element analysis thermal model was used along with the powder bed fusion with electron beam experiments. The proposed strategy involves dividing a part into smaller sections and creating meso-scale models for each subsection. These meso-scale models take into consideration the variable process parameters, including power and velocity of the moving heat source, during part building. Subsequently, these models are integrated to perform partscale simulations, enabling more realistic predictions of thermal accumulation and resulting distortions. The model was built and validated with single-bead experiments and bulky parts with different features.
Findings
Single-bead experiments demonstrated an average error rate of 6%–24% for melt pool dimension prediction using the proposed meso-scale models with different scanning control functions. Part-scale simulations for three different geometries (cantilever beams with supports, bulk artifact and topology-optimized transfer arm) showed good agreement between modeled temperature changes and experimental deformation values.
Originality/value
This study presents a novel approach for electron beam powder bed fusion modeling that leverages meso-scale models to capture the influence of variable process parameters on part quality. This strategy offers improved accuracy for predicting part geometry and identifying potential defects, leading to a more efficient additive manufacturing process.
Details
Keywords
Matt C. Howard and Mandy Kasprzyk
The current article integrates four prominent directions of modern research on workplace social courage. We (1) apply a novel framework, psychological contract theory, to identify…
Abstract
Purpose
The current article integrates four prominent directions of modern research on workplace social courage. We (1) apply a novel framework, psychological contract theory, to identify (2) work engagement and moral disengagement as potential antecedents of social courage, (3) unethical pro-organizational behaviors as a possible duplicitous outcome of these antecedents and (4) moderating effects of moral disengagement on the relations of work engagement with these outcomes.
Design/methodology/approach
We perform a two-wave survey study (n = 347), wherein antecedents are measured at Time 1 and outcomes are measured at Time 2 (one week later).
Findings
We support that work engagement and moral disengagement significantly relate to both workplace social courage and unethical pro-organizational behaviors. We also support that moral disengagement moderates the relation of work engagement with unethical pro-organizational behaviors but not workplace social courage.
Practical implications
We highlight that work engagement can be a possible avenue to promote workplace social courage, but organizations should monitor any interventions because it may also promote unethical pro-organizational behaviors for those who are morally disengaged. We also contend that the current results support the “resiliency of courage” by discovering a nonsignificant moderating effect, providing further support for this broadly replicable aspect of workplace social courage.
Originality/value
We discuss how these findings support psychological contract theory as a viable lens to understand workplace social courage, and we call on future researchers to apply the theory to identify further relations of the construct.
Details
Keywords
Raja Nurul Waheeda Raja Zilan, Adi Irfan Che-Ani and Siti Rashidah Hanum Abd Wahab
This paper aims to review the elements of facilities condition index (FCI) as one of the most widely used metrics for describing the physical condition of facilities and as a…
Abstract
Purpose
This paper aims to review the elements of facilities condition index (FCI) as one of the most widely used metrics for describing the physical condition of facilities and as a measure of financial indicator related to maintenance activity. This research will benefit future studies that focus on implementation of FCI and encourage the best practice when assessing the physical condition to evaluate the performance of facilities as well as to plan for maintenance action to be taken and financial implication involved based on the findings from FCI.
Design/methodology/approach
A total of 33 studies from 2012 to 2022 were identified and extracted from four academic databased, named Scopus, Google Scholar, Web of Science and Mendeley. These published studies were selected because it matches with the inclusion requirements for research question, “What are the elements of facilities condition index discussed in the literature from 2012 to 2022?”. To answer the research question, the studies in ATLAS.ti were grouped into five major themes based on the codes and categories found.
Findings
This paper presents the findings of a thematic analysis of the current literature discussed about FCI. A total of 33 studies from 2012 to 2022 were identified and extracted from four academic databased, named Scopus, Google Scholar, Web of Science and Mendeley. A themed review was conducted, and five themes were identified as elements of FCI, which are named as follows: “Condition Assessment”, “Deferred Maintenance”, “Facilities Performance”, “Financial and Fund Allocation” and “Decision Making”.
Originality/value
This paper fulfils the fundamental elements on current FCI practices as well as intended to highlight existing practices that are essential to evaluate facilities performance and planning for maintenance strategies.
Details
Keywords
Grazyna Aleksandra Wiejak-Roy and Gavin Hunter
Many town centres in England exhibit high retail property vacancies and require regeneration. Several alternatives for the replacement of town centre retail (TCR) have been…
Abstract
Purpose
Many town centres in England exhibit high retail property vacancies and require regeneration. Several alternatives for the replacement of town centre retail (TCR) have been suggested, one of which is healthcare. The healthcare sector in England is in distress, with the National Health Service (NHS) tackling extensive patient waiting lists, whilst operating from an ageing estate. This paper is an introductory study that uses seven carefully selected personalised surveys to raise academic awareness of the importance and potential of integrating healthcare into town centres and calls for large-scale research to establish the statistical validity of the reported observations.
Design/methodology/approach
This study is developed from an interpretative standpoint. Through semi-structured interviews with key stakeholders specific to retail-to-healthcare conversions, this study reports stakeholders' perspectives on opportunities and limitations for such conversions to give direction for large statistical research in the future.
Findings
All participants support the integration of healthcare into town centres and agreed that diagnostic services, mental health support and primary care services are appropriate for provision within town centres. The participants advocate large-scale change in town centres in England, with integrated healthcare co-located with complementary services to fit with wider regeneration plans. Participants prefer adaptation of existing buildings where technically feasible and emphasise the importance of obtaining the buy-in of other stakeholders whilst expressing concerns about the uncertainty of capital funding availability.
Originality/value
This is the first study to analyse the practice of retail-to-healthcare conversions in town centres. These are still rare in England and projects are complex. The market experience is limited, and thus, the literature is scarce. This study fills this void and provides a starting point for future quantitative research in this area and informs the new town-planning policies.
Details
Keywords
This study aims to identify the political alignment and political activity of the 11 Presidents of Britain’s most important scientific organisation, the Royal Society of London…
Abstract
Purpose
This study aims to identify the political alignment and political activity of the 11 Presidents of Britain’s most important scientific organisation, the Royal Society of London, in its early years 1662–1703, to determine whether or not the institution was politically aligned.
Design/methodology/approach
There is almost no information addressing the political alignment of the Royal Society or its Presidents available in the institution’s archives, or in the writings of historians specialising in its administration. Even reliable biographical sources, such as the Oxford Dictionary of National Biography provide very limited information. However, as 10 Presidents were elected Member of Parliament (MP), The History of Parliament: British Political, Social and Local History provides a wealth of accurate, in-depth data, revealing the alignment of both.
Findings
All Presidents held senior government offices, the first was a Royalist aristocrat; of the remaining 10, 8 were Royalist or Tory MPs, 2 of whom were falsely imprisoned by the House of Commons, 2 were Whig MPs, while 4 were elevated to the Lords. The institution was Royalist aligned 1662–1680, Tory aligned 1680–1695 and Whig aligned 1695–1703, which reflects changes in Parliament and State.
Originality/value
This study establishes that the early Royal Society was not an apolitical institution and that the political alignment of Presidents and institution continued in later eras. Furthermore, it demonstrates how the election or appointment of an organisation’s most senior officer can be used to signal its political alignment with government and other organisations to serve various ends.
Details