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Open Access
Article
Publication date: 12 October 2022

Marissa Condon and Brendan Hayes

The paper is concerned with interpolatory proper orthogonal decomposition (IPOD) methods for nonlinear transmission line circuits. This paper aims to examine several factors that…

Abstract

Purpose

The paper is concerned with interpolatory proper orthogonal decomposition (IPOD) methods for nonlinear transmission line circuits. This paper aims to examine several factors that must be considered when applying such model reduction techniques to this kind of circuit.

Design/methodology/approach

Two types of POD will be implemented. In each case, the choice of the order of the reduced model and the order of the interpolation space shall be considered. The stability of the models shall be explored.

Findings

The results indicate that the order for the reduced model to obtain accurate results depends on the chosen method when considering nonlinear transmission lines. The results also indicate that the structure of the nonlinear transmission line is crucial for determining the stability of the reduced models.

Originality/value

The work compares two IPOD methods and discusses the issues involved in achieving an accurate and stable reduced-order model for a nonlinear transmission line.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 2
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 1 July 2014

Marissa Condon and Brendan Hayes

The purpose of this paper is to investigate limit cycles in digitally Proportional, Integral and Derivative (PID) controlled buck regulators. Filtering is examined as a means of…

Abstract

Purpose

The purpose of this paper is to investigate limit cycles in digitally Proportional, Integral and Derivative (PID) controlled buck regulators. Filtering is examined as a means of removing the limit cycles in digitally controlled buck regulators.

Design/methodology/approach

The paper explains why limit cycles occur in a digitally PID controlled buck converter. It then proceeds to propose two filters for their elimination. Results indicate the effectiveness of each of the filters.

Findings

The paper gives a mathematical analysis of the occurrence of limit cycles in digitally controlled PID buck regulators. It finds that notch and comb filters are effective for the purpose of eliminating limit cycles in buck regulators.

Originality/value

The paper employs a model of the buck regulator inclusive of the inductor loss – this was not done to date for this type of work. The paper analyses PID control. This was not done in the manner given. The paper addresses filtering as a means of removing limit cycles. It examines the effect of changing the digital controller parameters on the requirements of the filters.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 33 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 31 July 2020

Rebecca Mitchell, Brendan Boyle and Stephen Nicholas

How top management teams (TMTs) adapt and change to create and sustain competitive advantage is a fundamental challenge for human resource management studies. This paper examines…

Abstract

Purpose

How top management teams (TMTs) adapt and change to create and sustain competitive advantage is a fundamental challenge for human resource management studies. This paper examines the effects of TMT composition (human capital) and managerial ties (social capital) as factors that interactively explain managerial adaptive capability and organizational performance.

Design/methodology/approach

A unique survey dataset, derived through privileged access to organizational CEOs and CFOs of 101 Chinese organizations, was used to investigate a path between TMT functional diversity and organizational performance through adaptive managerial capability. Data were analysed using hierarchical multiple regression and Hayes (2012) PROCESS macro for SPSS.

Findings

Unexpectedly, the results show that functional diversity has no direct positive effect on firm performance; however when functionally-diverse TMTs are embedded in external networks, there is a significant positive impact on managerial adaptive capability and, through this, competitive advantage.

Research limitations/implications

By identifying TMT functional diversity as an important driver of adaptive managerial capability, contingent on managerial ties, this study addresses a significant research gap pertaining to how TMT characteristics potentially contribute to the development of a core organizational capability.

Practical implications

The authors’ results highlight the importance of ensuring that recruitment into TMTs considers the complementarity of member functional background; however, benefit is only achieved when TMT members establish external ties with other organizations.

Originality/value

The authors’ findings provide evidence of the interactive effect of human and social capital on adaptive capability development and, through this, organizational performance.

Details

Personnel Review, vol. 50 no. 3
Type: Research Article
ISSN: 0048-3486

Keywords

Article
Publication date: 17 June 2022

Kevin O’ Shanahan, James O’ Flynn, Declan McCarthy and Liam MacGabhann

This paper aims to describe a novel community development and how the synergies arising from the interaction of diverse perspectives (including arts and health, person…

Abstract

Purpose

This paper aims to describe a novel community development and how the synergies arising from the interaction of diverse perspectives (including arts and health, person centredness, co-production and shared leadership) have led to a transformative initiative for individuals and a local community in the Republic of Ireland.

Design/methodology/approach

This is a descriptive case study. It includes the personal narrative of an expert by experience who is one of the co-authors. Links to short digital films are also included along with references to internal evaluation documents and published literature. Reflections from the nurses who contributed to the initiative and a university academic are also incorporated.

Findings

A space in the community built around the principles of relational practice has evolved into an alchemical space, enabling creativity, recovery and well-being. The benefits arising out of this network of social relationships have contributed to personal recovery, integration with the local community and generated social capital. This has enhanced mental health and well-being locally.

Practical implications

Statutory Irish health policy is reflective of developments in health care internationally, with an emphasis on greater delivery of care in the community. This views citizens as active partners in the maintenance of their health and well-being. This case study illustrates how this has unfolded in practice in a rural mental health community context.

Originality/value

This paper adds to the evidence base that demonstrates the potential benefits of participation in the arts to individual recovery journeys. In addition, it shows that when arts and health perspectives coalesce with the wider domain of relational practice, the synergies arising contribute positively to the health and well-being of local communities.

Details

Mental Health Review Journal, vol. 27 no. 4
Type: Research Article
ISSN: 1361-9322

Keywords

Article
Publication date: 5 August 2022

Kumar Krishna Biswas, Brendan Boyle, Sneh Bhardwaj and Parth Patel

The authors' study aims to examine to what extent managerial religiosity does influence human resource (HR) managers' attitudes towards women as managers (ATWM), and whether such…

Abstract

Purpose

The authors' study aims to examine to what extent managerial religiosity does influence human resource (HR) managers' attitudes towards women as managers (ATWM), and whether such posi(nega)tive attitudes can facilitate or impede the adoption of supportive HR practices (SHRP).

Design/methodology/approach

This study empirically examines a theoretical model by employing partial least squares-based structural equation modelling (PLS-SEM) using quantitative survey data from 182 HR managers in Bangladesh.

Findings

The authors' findings reveal that individual religiosity may adversely affect HR managers' attitudes towards recognising women as managers, and such stereotyped attitudes, in turn, may attenuate the adoption of supportive HR practices in organisations operating particularly in highly religious socio-culture environments.

Research limitations/implications

The findings of the authors based on self-report, cross-sectional survey data collected from HR managers/equivalent working in the Bangladeshi organisations may unlikely to predict the ATWM held by the top leaders in organisations and other employees in similar socio-cultural settings.

Practical implications

The authors' findings suggest that religiosity cannot be ignored in management development and recruitment processes for HR managers, particularly in a society characterised by relatively weaker formal institutions and people with a higher degree of religiosity.

Originality/value

To the best of the authors' knowledge, this study is the first attempt explicating how top management's religiosity interacts with the attitudes towards the acceptance of women as managers and how such attitudes can influence the adoption of supportive HR practices.

Details

International Journal of Emerging Markets, vol. 19 no. 1
Type: Research Article
ISSN: 1746-8809

Keywords

Article
Publication date: 20 February 2019

Gautam Gulati, Brendan D. Kelly, Conor O’Neill, Paul O’Connell, Sally Linehan, Eimear Spain, David Meagher and Colum P. Dunne

The assessment and management of prisoners on hunger strikes in a custodial setting is complex. There is limited clinical guidance available for psychiatrists to draw upon in such…

Abstract

Purpose

The assessment and management of prisoners on hunger strikes in a custodial setting is complex. There is limited clinical guidance available for psychiatrists to draw upon in such cases. The purpose of this paper is to develop a management algorithm through expert elicitation to inform the psychiatric care of prisoners on a hunger strike.

Design/methodology/approach

A Delphi method was used to elicit views from Irish forensic psychiatrists, a legal expert and an expert in ethics using a structured questionnaire. Themes were extracted from the results of the questionnaire to propose a management algorithm. A consensus was reached on management considerations.

Findings

Five consultant forensic psychiatrists, a legal expert and an expert on psychiatric ethics (n=7) consented to participation, with a subsequent response rate of 71.4 per cent. Consensus was achieved on a proposed management algorithm. Assessment for mental disorder, capacity to refuse food and motivation for food refusal are seen as key psychiatric tasks. The need to work closely with the prison general practitioner and the value of multidisciplinary working and legal advice are described. Relevant aspects of law included mental health, criminal law (insanity) and capacity legislation.

Originality/value

This study outlines a management algorithm for the psychiatric assessment and management of prisoners on a hunger strike, a subject about which there is limited guidance to date. Although written from an Irish perspective, this study outlines key considerations for psychiatrists in keeping with international guidance and therefore may be generalisable to other jurisdictions.

Details

International Journal of Prisoner Health, vol. 15 no. 1
Type: Research Article
ISSN: 1744-9200

Keywords

Article
Publication date: 19 July 2020

Kumar Biswas, Brendan Boyle and Sneh Bhardwaj

Using the theoretical lens of the behavioural perspective on HRM, this study examined a mediated model to understand the extent to which organisational factors such as supportive…

1041

Abstract

Purpose

Using the theoretical lens of the behavioural perspective on HRM, this study examined a mediated model to understand the extent to which organisational factors such as supportive human resource management policies and practices (SHRPP) and organisational climate (OC) can influence the affective attitudes of HR managers towards promoting women into organisational leadership roles. Survey data collected from 182 human resource managers in Bangladesh were analysed using partial least squares–based structural equation modelling (PLS-SEM) and the PROCESS macro to test mediating effects. The results reveal that the adoption of SHRPP is positively associated with OC, which in turn shapes the attitudes of HR managers leading to implementing unbiased promotional practices for organisational leadership roles.

Design/methodology/approach

Quantitative survey data collected from 182 human resource managers in Bangladesh were analysed using PLS-SEM and PROCESS macro.

Findings

The results reveal that the adoption of SHRPP is positively associated with OC which in turn shapes the attitudes of HR managers leading to implementing unbiased promotional practices for organisational leadership roles.

Research limitations/implications

Self-report, cross-sectional survey data may contribute to the methodological bias such as common method bias (CMB). Harman's single-factor test revealed that no single component explained a major portion of the total variance. Furthermore, partial correlational analysis using a marker variable coupled with an assessment of social desirability indicates that common method variance is unlikely to have any CMB risks to the validity of the study results.

Practical implications

From a practical point of view, the findings of this study suggest that supportive HR practices may create a positive organisational climate that leads to creating a healthy work environment ensuring an equal opportunity for everyone to grow and excel irrespective of their socio-cultural backgrounds and gender identity; thus, facilitating the organisation to take advantage of creativity and innovation offered by their talents, a critical factor for the organisation to survive and flourish in the dynamic market.

Social implications

The study findings provide insights into why organisations should adopt fair and transparent HR policies to create a congenial work climate impacting on positive social attitudes towards acceptance of a gender-balanced empowered society.

Originality/value

To the best of author's knowledge, this is the first study that examined a mediated model to understand how organisational factors such as SHRPP and OC can impact on the affective attitudes of HR managers towards promoting women in the organisational leadership roles.

Details

Evidence-based HRM: a Global Forum for Empirical Scholarship, vol. 9 no. 1
Type: Research Article
ISSN: 2049-3983

Keywords

Content available
Article
Publication date: 23 November 2021

Peter Halliwell, Rebecca Mitchell and Brendan Boyle

The purpose of this paper is to investigate interrelations between enhanced emotional intelligence, leadership self-efficacy and task-oriented leadership behaviour following…

7245

Abstract

Purpose

The purpose of this paper is to investigate interrelations between enhanced emotional intelligence, leadership self-efficacy and task-oriented leadership behaviour following participation in leadership coaching.

Design/methodology/approach

Organisational leaders (coachees) (N = 70) and their subordinates (N = 175) completed online questionnaires pre- and post-coaching. To account for pre-coaching scores, construct latent change scores were assessed using partial least squares structural equation modelling (PLS-SEM).

Findings

Results indicate a positive association between enhanced emotional intelligence and leadership self-efficacy, however, little support was found for leadership self-efficacy as a mediator explaining an association between enhanced emotional intelligence and task-oriented leadership behaviour.

Practical implications

Organisations aiming to improve leader performance through enhancing emotional intelligence and leadership self-efficacy may find value in leadership coaching due to the intervention's positive effect on these constructs, and the positive association observed between developmental changes in these constructs.

Originality/value

Research on the interrelation between emotional intelligence and leadership self-efficacy is scarce. This study extends the literature by investigating the interrelation between developmental changes between these constructs brought about by leadership coaching using latent change scores and PLS-SEM. The study also assesses whether enhanced leadership self-efficacy mediates an association between enhanced emotional intelligence and task-oriented leadership behaviour building on the literature explaining coaching's effect mechanisms.

Details

Leadership & Organization Development Journal, vol. 43 no. 1
Type: Research Article
ISSN: 0143-7739

Keywords

Article
Publication date: 3 January 2017

Anthony Scanlan, Daniel O’Hare, Mark Halton, Vincent O’Brien, Brendan Mullane and Eric Thompson

The purpose of this paper is to present analysis of the feedback predictive encoder-based analog-to-digital converter (ADC).

Abstract

Purpose

The purpose of this paper is to present analysis of the feedback predictive encoder-based analog-to-digital converter (ADC).

Design/methodology/approach

The use of feedback predictive encoder-based ADCs presents an alternative to the traditional two-stage pipeline ADC by replacing the input estimate producing first stage of the pipeline with a predictive loop that also produces an estimate of the input signal.

Findings

The overload condition for feedback predictive encoder ADCs is dependent on input signal amplitude and frequency, system gain and filter order. The limitation on the practical usable filter order is set by limit cycle oscillation. A boundary condition is defined for determination of maximum usable filter order. In a practical implementation of the predictive encoder ADC, the time allocated to the key functions of the gain stage and loop quantizer leads to optimization of the power consumption.

Practical implications

A practical switched capacitor implementation of the predictive encoder-based ADC is proposed. The power consumption of key circuit blocks is investigated.

Originality/value

This paper presents a methodology to optimize the bandwidth of predictive encoder ADCs. The overload and stability conditions may be used to determine the maximum input signal bandwidth for a given loop quantizer. Optimization of power consumption based on the allocation of time between the gain stage and the successive approximation register ADC operation is investigated. The lower bound of power consumption for this architecture is estimated.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 36 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 18 May 2011

Brendan M. O'Mahony, Kevin Smith and Becky Milne

The purpose of this paper is to examine how Registered Intermediaries are used in the England and Wales to facilitate communication between vulnerable witnesses, victims and…

1975

Abstract

Purpose

The purpose of this paper is to examine how Registered Intermediaries are used in the England and Wales to facilitate communication between vulnerable witnesses, victims and police investigators and criminal courts.

Design/methodology/approach

The paper focuses on the need for early identification of the vulnerable person so that support measures can be put in place from the outset to assist them to provide their testimony.

Findings

It is noted that real progress has been made by the introduction of legislation, specifically the Youth Justice and Criminal Evidence Act (1999), and the uptake by the police service of the subsequent special measures put in place. However, the criminal justice service cannot afford to be complacent as research demonstrates that the police and the courts need to be more effective in managing these issues.

Originality/value

The paper recommends that support measures are widened to include witnesses and suspects being interviewed by the Independent Police Complaints Commission, HM Customs and Revenue, the Department of Health and the Department of Work and Pensions.

Details

The British Journal of Forensic Practice, vol. 13 no. 2
Type: Research Article
ISSN: 1463-6646

Keywords

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