Search results
1 – 10 of over 3000Adella Grace Migisha, Joseph Mapeera Ntayi, Muyiwa S. Adaramola, Faisal Buyinza, Livingstone Senyonga and Joyce Abaliwano
An unreliable supply of grid electricity has a strong negative impact on industrial and commercial profitability as well as on household activities and government services that…
Abstract
Purpose
An unreliable supply of grid electricity has a strong negative impact on industrial and commercial profitability as well as on household activities and government services that rely on electricity supply. This unreliable grid electricity could be a result of technical and security factors affecting the grid network. Therefore, this study aims to investigate the effects of technical and security factors on the transmission and distribution of grid electricity in Uganda.
Design/methodology/approach
This study used the ordinary least squares (OLS) and autoregressive distributed lag (ARDL) models to examine the effects of technical and security factors on grid electricity reliability in Uganda. The study draws upon secondary time series monthly data sourced from the Uganda Electricity Transmission Company Limited (UETCL) government utility, which transmits electricity to both distributors and grid users. Additionally, data from Umeme Limited, the largest power distribution utility in Uganda, were incorporated into the analysis.
Findings
The findings revealed that technical faults, failed grid equipment, system overload and theft and vandalism affected grid electricity reliability in the transmission and distribution subsystems of the Ugandan power grid network. The effect was computed both in terms of frequency and duration of power outages. For instance, the number of power outages was 116 and 2,307 for transmission and distribution subsystems, respectively. In terms of duration, the power outages reported on average were 1,248 h and 5,826 h, respectively, for transmission and distribution subsystems.
Originality/value
This paper investigates the effects of technical and security factors on the transmission and distribution grid electricity reliability, specifically focusing on frequency and duration of power outages, in the Ugandan context. It combines both OLS and ARDL models for analysis and adopts the systems reliability theory in the area of grid electricity reliability research.
Details
Keywords
Velmurugan Kumaresan, S. Saravanasankar and Gianpaolo Di Bona
Through the use of the Markov Decision Model (MDM) approach, this study uncovers significant variations in the availability of machines in both faulty and ideal situations in…
Abstract
Purpose
Through the use of the Markov Decision Model (MDM) approach, this study uncovers significant variations in the availability of machines in both faulty and ideal situations in small and medium-sized enterprises (SMEs). The first-order differential equations are used to construct the mathematical equations from the transition-state diagrams of the separate subsystems in the critical part manufacturing plant.
Design/methodology/approach
To obtain the lowest investment cost, one of the non-traditional optimization strategies is employed in maintenance operations in SMEs in this research. It will use the particle swarm optimization (PSO) algorithm to optimize machine maintenance parameters and find the best solutions, thereby introducing the best decision-making process for optimal maintenance and service operations.
Findings
The major goal of this study is to identify critical subsystems in manufacturing plants and to use an optimal decision-making process to adopt the best maintenance management system in the industry. The optimal findings of this proposed method demonstrate that in problematic conditions, the availability of SME machines can be enhanced by up to 73.25%, while in an ideal situation, the system's availability can be increased by up to 76.17%.
Originality/value
The proposed new optimal decision-support system for this preventive maintenance management in SMEs is based on these findings, and it aims to achieve maximum productivity with the least amount of expenditure in maintenance and service through an optimal planning and scheduling process.
Details
Keywords
Daniel Druckman, Siniša Vuković and Nicolas Verbeek
This study aims to explore the role of rebel group legitimacy and ideology in durable peace (DP) following peace agreements to end civil wars. It builds on earlier research…
Abstract
Purpose
This study aims to explore the role of rebel group legitimacy and ideology in durable peace (DP) following peace agreements to end civil wars. It builds on earlier research showing that justice and civil society involvement are critical in achieving DP. This study adds the impacts of rebel group activities and support on DP. Activities include service delivery and mobilization. Support is gauged with outcomes of presidential and parliamentary elections held following peace agreements.
Design/methodology/approach
Five data sets were used to measure the key variables: DP, inclusive commissions (IC), legitimacy symmetry (electoral outcomes), service delivery and ideological mobilization. A measure of rebel group integration in the political system was also constructed. Impacts of the integration, legitimacy and ideology variables were assessed with a hierarchical regression model (HRM). This study begins with a base model drawn from earlier research showing the key predictors were procedural justice (PJ) and IC. The authors ask about the extent to which the rebel group variables contribute additional variance to the prediction of DP.
Findings
The main contributors to the prediction of DP were PJ, IC and integration in the political system. None of the legitimacy or mobilization variables added significant variance to the prediction. Only one of the mobilization variables, forced recruitment, was significant. The decision to integrate into the political system following the agreement did not mediate the relationship between PJ in the negotiation process and DP. Results of a factor analysis showed that DP, PJ, IC and integration formed a cluster with strong loadings on the first factor.
Research limitations/implications
The negative results for the legitimacy and mobilization variables may not be the last word on rebel group influences. Lack of support for the key hypotheses spurs attempts to discover other sources that contribute to the survival of rebel group actors in the political system and, in turn, to DP.
Practical implications
The issues raised by this study contribute to debates about ways to attain peaceful relations among competing groups following a civil war. It appears that attention to factors inside and around the negotiation process (PJ, ICs and conversion) may be more important than rebel group activities outside of these processes. The results call attention, in particular, to the important role played by political integration. From a policy perspective, it would be useful to develop levers for encouraging rebel groups to emerge as political actors in the post-agreement environment.
Originality/value
Developing measures of the symmetry of rebel group legitimacy and integration in the context of a comparative case study are the primary original contributions of this study. Furthermore, the mode of analysis (HRM) is novel in this literature. This approach builds on and extends the earlier research on factors influencing DP.
Details
Keywords
Suzan Alaswad and Sinan Salman
While steady-state analysis is useful, it does not consider the inherent transient characteristics of repairable systems' behavior, especially in systems that have relatively…
Abstract
Purpose
While steady-state analysis is useful, it does not consider the inherent transient characteristics of repairable systems' behavior, especially in systems that have relatively short life spans, or when their transient behavior is of special concern such as the motivating example used in this paper, military systems. Therefore, a maintenance policy that considers both transient and steady-state availability and aims to achieve the best trade-off between high steady-state availability and rapid stabilization is essential.
Design/methodology/approach
This paper studies the transient behavior of system availability under the Kijima Type II virtual age model. While such systems achieve steady-state availability, and it has been proved that deploying preventive maintenance (PM) can significantly improve its steady-state availability, this improvement often comes at the price of longer and increased fluctuating transient behavior, which affects overall system performance. The authors present a methodology that identifies the optimal PM policy that achieves the best trade-off between high steady-state availability and rapid stabilization based on cost-availability analysis.
Findings
When the proposed simulation-based optimization and cost analysis methodology is applied to the motivating example, it produces an optimal PM policy that achieves an availability–variability balance between transient and steady-state system behaviors. The optimal PM policy produces a notably lower availability coefficient of variation (by 11.5%), while at the same time suffering a negligible limiting availability loss of only 0.3%. The new optimal PM policy also provides cost savings of about 5% in total maintenance cost. The performed sensitivity analysis shows that the system's optimal maintenance cost is sensitive to the repair time, the shape parameter of the Weibull distribution and the downtime cost, but is robust with respect to changes in the remaining parameters.
Originality/value
Most of the current maintenance models emphasize the steady-state behavior of availability and neglect its transient behavior. For some systems, using steady-state availability as the sole metric for performance is not adequate, especially in systems that have relatively short life spans or when their transient behavior affects the overall performance. However, little work has been done on the transient analysis of such systems. In this paper, the authors aim to fill this gap by emphasizing such systems and applications where transient behavior is of critical importance to efficiently optimize system performance. The authors use military systems as a motivating example.
Details
Keywords
Grant Samkin, Dessalegn Getie Mihret and Tesfaye Lemma
We develop a conceptual framework as a basis for thinking about the impact of extractive industries and emancipatory potential of alternative accounts. We then review selected…
Abstract
Purpose
We develop a conceptual framework as a basis for thinking about the impact of extractive industries and emancipatory potential of alternative accounts. We then review selected alternative accounts literature on some contemporary issues surrounding the extractive industries and identify opportunities for accounting, auditing, and accountability research. We also provide an overview of the other contributions in this special issue.
Design/methodology/approach
Drawing on alternative accounts from the popular and social media as well as the alternative accounting literature, this primarily discursive paper provides a contemporary literature review of identified issues within the extractive industries highlighting potential areas for future research. The eight papers that make up the special issue are located within a conceptual framework is employed to illustrate each paper’s contribution to the field.
Findings
While accounting has a rich literature covering some of the issues detailed in this paper, this has not necessarily translated to the extractive industries. Few studies in accounting have got “down and dirty” so to speak and engaged directly with those impacted by companies operating in the extractive industries. Those that have, have focused on specific areas such as the Niger Delta. Although prior studies in the social governance literature have tended to focus on disclosure issues, it is questionable whether this work, while informative, has resulted in any meaningful environmental, social or governance (ESG) changes on the part of the extractive industries.
Research limitations/implications
The extensive extractive industries literature both from within and outside the accounting discipline makes a comprehensive review impractical. Drawing on both the accounting literature and other disciplines, this paper identifies areas that warrant further investigation through alternative accounts.
Originality/value
This paper and other contributions to this special issue provide a basis and an agenda for accounting scholars seeking to undertake interdisciplinary research into the extractive industries.
Details
Keywords
This paper aims to identify human rights violations of patients during the early periods of the COVID-19 pandemic in Ghana by investigating the experiences of people on how…
Abstract
Purpose
This paper aims to identify human rights violations of patients during the early periods of the COVID-19 pandemic in Ghana by investigating the experiences of people on how health-care professionals discharged their responsibilities during the time in question.
Design/methodology/approach
Explanatory design of the mixed methods approach was adopted, with the intention of collecting both quantitative and qualitative data sequentially, and then integrating the results at the interpretation stage. The approach enriched the quality of data collected as it offered the advantage of shedding light on the primary motivations and reasons for attitudes and behaviours and helped to provide an in-depth understanding of how individuals interpret the happenings around them and their experiences. Thus, although some amount of quantitative method was used in the data collection, the core of this paper is based on the qualitative interpretations.
Findings
The study reveals that health-care professionals, especially those in the Tema Metropolis, undermined certain fundamental human rights of patients during the early period of the COVID-19 pandemic. This includes failure to provide information to patients about treatment options and potential risks of medications; failure to seek the informed consent of patients before performing medical procedures; denial of access to medical files of patients for transfer; and inability or failure to provide medical ambulances services to patients on time.
Originality/value
Although many publications on human rights dimensions and health protective issues on COVID-19 pandemic are available on a global scale, still little information pertaining to experiences of individuals with health-care professionals during the early days of the COVID-19 pandemic, especially in Ghana through the lens of patient’s rights exists. This paper, therefore, fills an important gap in health-care management information, critical for policy decision-making processes regarding patient’s rights in times of pandemic control.
Details
Keywords
The institutional conditions of primary care provision remain understudied in low- and middle-income countries. This study analyzes how primary care doctors cope with medical…
Abstract
Purpose
The institutional conditions of primary care provision remain understudied in low- and middle-income countries. This study analyzes how primary care doctors cope with medical uncertainty in municipal clinics in urban India. As street-level bureaucrats, the municipal doctors occupy two roles simultaneously: medical professional and state agent. They operate under conditions that characterize health systems in low-resource contexts globally: inadequate state investment, weak regulation and low societal trust. The study investigates how, in these conditions, the doctors respond to clinical risk, specifically related to noncommunicable diseases (NCDs).
Design/methodology/approach
The analysis draws on year-long ethnographic fieldwork in Pune (2013–14), a city of three million, including 30 semi-structured interviews with municipal doctors.
Findings
Interpreting their municipal mandate to exclude NCDs and reasoning their medical expertise as insufficient to treat NCDs, the doctors routinely referred NCD cases. They expressed concerns about violence from patients, negative media attention and unsupportive municipal authorities should anything go wrong clinically.
Originality/value
The study contextualizes street-level service-delivery in weak institutional conditions. Whereas street-level workers may commonly standardize practices to reduce workload, here the doctors routinized NCD care to avoid the sociopolitical consequences of clinical uncertainty. Modalities of the welfare state and medical care in India – manifest in weak municipal capacity and healthcare regulation – appear to compel restraint in service-delivery. The analysis highlights how norms and social relations may shape primary care provision and quality.
Details
Keywords
Poonam Barhoi and Surbhi Dayal
The tea plantation industry is characterized by the large-scale deployment of cheap women laborers and gender-blind practices that make the social positions of women workers…
Abstract
Purpose
The tea plantation industry is characterized by the large-scale deployment of cheap women laborers and gender-blind practices that make the social positions of women workers vulnerable. This paper considers women temporary workers in tea gardens to study the exacerbated impact of Covid-19 on their lives. The impact of the pandemic on marginal tea garden women laborers has not received enough attention from researchers; hence, the authors have studied the gendered implications of the pandemic on Adivasi temporary women workers in tea gardens in India. “Adivasi” is an umbrella term to refer to all indigenous tribes in India.
Design/methodology/approach
The authors conducted a qualitative study with 26 in-depth interviews with women temporary workers who identify themselves as Adivasis. For the discussion, the authors have mainly borrowed from intersectionality and subalternity literature.
Findings
The analysis explored the intersectional experiences of the women temporary workers (1) as members of Tea Tribes who are compelled to continue working at tea gardens as wage laborers, (2) job insecurities at work due to their temporary worker status, (3) disadvantages faced by women workers for their gender identity and (4) the gendered impact of the pandemic on their lives.
Originality/value
This study has explored the gendered impact of the Covid-19 pandemic on the lives of temporary women workers who belong to ethnic minority groups in the global south. The exploitation of labor rights in the tea industry during the pandemic has not been discussed enough by researchers earlier.
Details
Keywords
Chinwe Regina Okoyeuzu, Angela Ifeanyi Ujunwa, Augustine Ujunwa, Nelson N. Nkwor, Ebere Ume Kalu and Mamdouh Abdulaziz Saleh Al-Faryan
Sub-Saharan Africa (SSA) is regarded as a region with one of the worst cases of armed conflict and climate risk. This paper examines the interactive effect of armed conflict and…
Abstract
Purpose
Sub-Saharan Africa (SSA) is regarded as a region with one of the worst cases of armed conflict and climate risk. This paper examines the interactive effect of armed conflict and climate risk on gender vulnerability in SSA.
Design/methodology/approach
The difference and system generalised method of movement (GMM) were used to examine the relationship between the variables using annualised data of 35 SSA countries from 1998 to 2019.
Findings
The paper found strong evidence that armed conflict and climate change are positive predictors of gender vulnerability. The impact of climate change on gender vulnerability is found to be more direct than indirect.
Practical implications
The direct and indirect positive effect of armed conflict and climate change on gender vulnerability implies that climate change drives gender vulnerability through multiple channels. This underscores the need for a multi-disciplinary policy approach to addressing gender vulnerability problem in SSA.
Originality/value
The study contributes to the climate action debate by highlighting the need for climate action to incorporate gender inclusive policies such as massive investment in infrastructure and safety nets that offer protection to the most vulnerable girls and women affected by armed conflict and climate change. Societies should as a matter of urgency strive to structural barriers that predispose girls and women to biodiversity loss.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/IJSE-09-2022-0595
Details
Keywords
The aim of the study is to assess the extent to which Taoist philosophy offers thematic and ethical insights relevant to current global crises, including climate change, food…
Abstract
Purpose
The aim of the study is to assess the extent to which Taoist philosophy offers thematic and ethical insights relevant to current global crises, including climate change, food insecurity, renewed conflict and increased authoritarianism.
Design/methodology/approach
A critical review of specific verses from the Tao Te Ching and research sources relevant to them is carried out.
Findings
Taoist philosophy, of ancient origins, is surprisingly relevant to modern crises. While not offering definitive answers, it does provide thematic and ethical insights for reorienting governance in more productive ways.
Originality/value
While there is a large literature on Taoist philosophy itself, there is a paucity of research articles on the modern relevance of Taoist philosophy to pressing current issues. The article brings together and assesses these sources, considering relevant research.
Details