183 research outputs found

    Political skill and role overload as antecedents of innovative work behavior in the public sector

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    We draw upon the theory of Conservation of Resources (COR) in positing political skill and role overload as influencing perceptions of either resource loss or conservation not previously studied in innovative work behavior. Based on a survey of 249 junior doctors in the United Kingdom, we found that role overload not only had direct positive effects on innovative work behavior but also negatively affects innovative work behavior, mediated through its effects on perceived organizational support. Political skill was positively associated with innovative work behavior, mediated through role-breadth self-efficacy. Our findings support a growing body of literature suggesting that engaging in innovative work behavior is a problem-focused coping strategy to deal with job demands and stressors. Current theorizing that job demands can have positive effects on innovative work behavior needs to be reconsidered given alternative negative effects suggested by COR

    NETWORK CHANGE AND DEVELOPMENT OF BUMIPUTERA ENTREPRENEURS: THE STUDY OF MULTIPLE-CASES OF SMALL BUSINESSES IN THE SOUTHERN REGION OF MALAYSIA

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    This paper seeks to empirically explore the dynamics of change and development of network ties of Bumiputera entrepreneurs during the firms’ tipping points. Literature review shows that many studies have explored the mix of strong and weak ties in small businesses linking them to stages of business development. More recent literature, however, has conceptualised firm growth through the notion of critical problems or ‘tipping points’ that must be successfully tackled in order to continue on a development path. While the importance of network ties has been well documented in relation to growth stages, limited work has investigated the contribution that strong and weak ties make as a firm faces specific tipping points, thus showing a call for further investigation. This is a qualitative study involving eight cases of small-sized food manufacturing firms in the Southern region of Malaysia. The main data collection method is an in-depth interview with the owner-managers using Critical Incident Interview Technique.  The triangulation of data has been carried out by interviewing individuals who are seen as strong and weak ties of the network. This study explores 10 themes of tipping points that trigger network change and development; these are financial problem, new market entry, strategic orientation, people management, competition, external events and/or environmental factor, trust breaking, network broker, multidimensionality of entrepreneurial-level context and multidimensionality of dyadic-level context. This study adds value to the network change literature and provide managerial and policy implications.Â

    Change leadership and change embeddedness in public organizations: Connecting macro-level reform to micro-level implementation

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    Governments initiate major public sector reforms for various reasons. Although change leadership appears crucial, its role in implementing reforms in public organisations receives scant attention. Insights from public administration and change management literature help to bridge the gap between these macro- and micro-level perspectives. Our multilevel study of two youth care organisations addressing public sector reform explores how leadership behaviour – and in interaction between top and middle managers – contributes to the concept of what we call change embeddedness among front-line employees. The use of leadership behaviours during the reform that are leader centric (shaping) appear to be associated with greater ambiguity and worse change embeddedness. However, leadership focused on engaging employees and boundary spanning with external organisations seems to support the embeddedness of the reform, especially when these behaviours are connected to a clear sense of purpose around the change

    The role of person-job fit in the relationship between transformational leadership and job engagement

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    PurposeThe purpose of this paper is to explore the relationship between transformational leadership and employees’ work engagement based on fit theory. The paper reports an investigation into the way in which employees’ perceptions of transformational leadership and person-job fit affect their work engagement.Design/methodology/approachTo test the authors’ hypotheses, the authors performed structure equation modeling with maximum likelihood estimation on Mplus with bootstrapping proposed by Hayes (2009) with data from 691 full-time employees in China.FindingsThe results indicate that transformational leadership has as significant influence on employees’ work engagement as person-job fit in China. Moreover, employees’ perception of person-job fit is found to partially mediate the relationship between transformational leadership and employees’ work engagement.Research limitations/implicationsThere is a possible bias arising from the use of cross-sectional data. However, certain methods were implemented to minimize it, including survey design and data analysis.Practical implicationsThe paper proposes a number of practical implications for policy makers, HR managers and transformational leaders relating to issues associated with improving levels of employee engagement.Originality/valueThe study contributes to developing leadership and engagement theory by examining a previously unexplored mediator – person-job fit – in a neglected cultural setting. This study promises to open new research avenues in this area

    Quid pro quo? The future for graduate development programmes through the lens of talent management

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    The value of graduate development programmes (GDPs) from a talent management (TM) perspective is unknown. The contemporary TM literature focuses primarily on talent programmes for existing employees whereas less attention has been placed on externally recruited talent pools, in particular graduates. Attracting graduate talent is a priority for many organisations, as evidenced by the amount of investment contributed to this activity, but research on the employer’s intended outcomes and expectations of partici- pants in GDPs seems to lack coherence. To bridge this gap, this paper aims to develop a conceptual model to explicate the nature and process of GDP, using TM and the wider career literature. The model helps in our understanding of what contextual factors are important and how these factors influence policy and practice to GDPs. We also explore the value of GDPs based on the psychological contract perspec- tive in a contemporary career system. To achieve these aims, the paper investigates how the design and agenda of GDPs may be reframed by analysing several literatures including talent pool segmentation, identity, psychological contract theory and career management. We also expand the existing TM literature by exploring the factors that directly impact the outcomes of GDPs and set future research agenda

    The management of change in public organisations: A literature review

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    This article presents a review of the recent literature on change management in public organisations and sets out to explore the extent to which this literature has responded to earlier critiques regarding the lack of (public) contextual factors. The review includes 133 articles published on this topic in the period from 2000 to 2010. The articles are analyzed based on the themes of the context, content, process, outcome and leadership of change. We identified whether the articles referred to different orders of change, as well as their employed methods and theory. Our findings concentrate on the lack of detail on change processes and outcomes and the gap between the common theories used to study change. We propose an agenda for the study of change management in public organisations that focuses on its complex nature by building theoretical bridges and performing more in-depth empirical and comparative studies on c

    Effective suppression of Dengue virus using a novel group-I intron that induces apoptotic cell death upon infection through conditional expression of the Bax C-terminal domain

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    Introduction: Approximately 100 million confirmed infections and 20,000 deaths are caused by Dengue virus (DENV) outbreaks annually. Global warming and rapid dispersal have resulted in DENV epidemics in formally non-endemic regions. Currently no consistently effective preventive measures for DENV exist, prompting development of transgenic and paratransgenic vector control approaches. Production of transgenic mosquitoes refractory for virus infection and/or transmission is contingent upon defining antiviral genes that have low probability for allowing escape mutations, and are equally effective against multiple serotypes. Previously we demonstrated the effectiveness of an anti-viral group I intron targeting U143 of the DENV genome in mediating trans-splicing and expression of a marker gene with the capsid coding domain. In this report we examine the effectiveness of coupling expression of ΔN Bax to trans-splicing U143 intron activity as a means of suppressing DENV infection of mosquito cells. Results: Targeting the conserved DENV circularization sequence (CS) by U143 intron trans-splicing activity appends a 3’ exon RNA encoding ΔN Bax to the capsid coding region of the genomic RNA, resulting in a chimeric protein that induces premature cell death upon infection. TCID50-IFA analyses demonstrate an enhancement of DENV suppression for all DENV serotypes tested over the identical group I intron coupled with the non-apoptotic inducing firefly luciferase as the 3’ exon. These cumulative results confirm the increased effectiveness of this αDENV-U143-ΔN Bax group I intron as a sequence specific antiviral that should be useful for suppression of DENV in transgenic mosquitoes. Annexin V staining, caspase 3 assays, and DNA ladder observations confirm DCA-ΔN Bax fusion protein expression induces apoptotic cell death. Conclusion: This report confirms the relative effectiveness of an anti-DENV group I intron coupled to an apoptosis-inducing ΔN Bax 3’ exon that trans-splices conserved sequences of the 5’ CS region of all DENV serotypes and induces apoptotic cell death upon infection. Our results confirm coupling the targeted ribozyme capabilities of the group I intron with the generation of an apoptosis-inducing transcript increases the effectiveness of infection suppression, improving the prospects of this unique approach as a means of inducing transgenic refractoriness in mosquitoes for all serotypes of this important disease

    Utilisation of an operative difficulty grading scale for laparoscopic cholecystectomy

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    Background A reliable system for grading operative difficulty of laparoscopic cholecystectomy would standardise description of findings and reporting of outcomes. The aim of this study was to validate a difficulty grading system (Nassar scale), testing its applicability and consistency in two large prospective datasets. Methods Patient and disease-related variables and 30-day outcomes were identified in two prospective cholecystectomy databases: the multi-centre prospective cohort of 8820 patients from the recent CholeS Study and the single-surgeon series containing 4089 patients. Operative data and patient outcomes were correlated with Nassar operative difficultly scale, using Kendall’s tau for dichotomous variables, or Jonckheere–Terpstra tests for continuous variables. A ROC curve analysis was performed, to quantify the predictive accuracy of the scale for each outcome, with continuous outcomes dichotomised, prior to analysis. Results A higher operative difficulty grade was consistently associated with worse outcomes for the patients in both the reference and CholeS cohorts. The median length of stay increased from 0 to 4 days, and the 30-day complication rate from 7.6 to 24.4% as the difficulty grade increased from 1 to 4/5 (both p < 0.001). In the CholeS cohort, a higher difficulty grade was found to be most strongly associated with conversion to open and 30-day mortality (AUROC = 0.903, 0.822, respectively). On multivariable analysis, the Nassar operative difficultly scale was found to be a significant independent predictor of operative duration, conversion to open surgery, 30-day complications and 30-day reintervention (all p < 0.001). Conclusion We have shown that an operative difficulty scale can standardise the description of operative findings by multiple grades of surgeons to facilitate audit, training assessment and research. It provides a tool for reporting operative findings, disease severity and technical difficulty and can be utilised in future research to reliably compare outcomes according to case mix and intra-operative difficulty

    Effective suppression of Dengue fever virus in mosquito cell cultures using retroviral transduction of hammerhead ribozymes targeting the viral genome

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    Outbreaks of Dengue impose a heavy economic burden on developing countries in terms of vector control and human morbidity. Effective vaccines against all four serotypes of Dengue are in development, but population replacement with transgenic vectors unable to transmit the virus might ultimately prove to be an effective approach to disease suppression, or even eradication. A key element of the refractory transgenic vector approach is the development of transgenes that effectively prohibit viral transmission. In this report we test the effectiveness of several hammerhead ribozymes for suppressing DENV in lentivirus-transduced mosquito cells in an attempt to mimic the transgenic use of these effector molecules in mosquitoes. A lentivirus vector that expresses these ribozymes as a fusion RNA molecule using an Ae. aegypti tRNAval promoter and terminating with a 60A tail insures optimal expression, localization, and activity of the hammerhead ribozyme against the DENV genome. Among the 14 hammerhead ribozymes we designed to attack the DENV-2 NGC genome, several appear to be relatively effective in reducing virus production from transduced cells by as much as 2 logs. Among the sequences targeted are 10 that are conserved among all DENV serotype 2 strains. Our results confirm that hammerhead ribozymes can be effective in suppressing DENV in a transgenic approach, and provide an alternative or supplementary approach to proposed siRNA strategies for DENV suppression in transgenic mosquitoes
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