141 research outputs found

    Src homology 2 domain containing protein 5 (SH2D5) binds the breakpoint cluster region protein, BCR, and regulates levels of Rac1-GTP

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    SH2D5 is a mammalian-specific, uncharacterized adaptor-like protein that contains an N-terminal phosphotyrosine binding (PTB) domain and a C-terminal Src Homology 2 (SH2) domain. We show that SH2D5 is highly enriched in adult mouse brain, particularly in purkinjie cells in the cerebellum and the cornu ammonis of the hippocampus. Despite harboring two potential phosphotyrosine (pTyr) recognition domains, SH2D5 binds minimally to pTyr ligands, consistent with the absence of a conserved pTyr-binding arginine residue in the SH2 domain. Immunoprecipitation coupled to mass spectrometry (IP-MS) from cultured cells revealed a prominent association of SH2D5 with Breakpoint Cluster Region protein (BCR), a RacGAP that is also highly expressed in brain. This interaction occurred between the PTB domain of SH2D5 and an NxxF motif located within the N-terminal region of BCR. siRNA-mediated depletion of SH2D5 in a neuroblastoma cell line, B35, induced a cell rounding phenotype correlated with low levels of activated Rac1-GTP, suggesting that SH2D5 affects Rac1-GTP levels. Taken together, our data provide the first characterization of the SH2D5 signaling protein

    Just enough structure at the edge of chaos: Agile information system development in practice

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    Agile information systems development is not well understood and suffers from a lack of sustainable theories, which are based on empirical research of practice. We use a framework that focuses on the ‘edge of chaos’ as the area, where agile information systems development takes place to fill in this gap. Our study identifies for a concrete project under investigation, where the beneficial balance between stability and instability lies. It discusses the circumstances, which influence this balance and the relationships of the elements, which constitute it

    Paradox as invitation to act in problematic change situations

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    It has been argued that organizational life typically contains paradoxical situations such as efforts to manage change which nonetheless seem to reinforce inertia. Four logical options for coping with paradox have been explicated, three of which seek resolution and one of which ‘keeps the paradox open’. The purpose of this article is to explore the potential for managerial action where the paradox is held open through the use of theory on ‘serious playfulness’. Our argument is that paradoxes, as intrinsic features in organizational life, cannot always be resolved through cognitive processes. What may be possible, however, is that such paradoxes are transformed, or ‘moved on’ through action and as a result the overall change effort need not be stalled by the existence of embedded paradoxes

    Flagships and tumbleweed: A history of the politics of gender justice work in Oxfam GB 1986–2015

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    This article contributes to scholarship on the political nature of feminists’ work in international development NGOs. The case study of Oxfam GB (OGB) is contemporary history, based on compiling a brief history of gender justice work between 1986 and 2014 and 18 months of part-time participant-observation fieldwork during 2014–15. I describe funding pressures and imperatives, contestations of meaning and power struggles within OGB and argue that gender justice becomes entangled in both internal and the external politics of international development. This is part of a wider research programme about how ideas on gender equality norms travel between and around development organizations, so I finally draw conclusions about how norms are contested and embodied. The shapeshifting political nature of feminist work challenges prevailing theories about how norms and ideas travel and take hold within organizations

    An Exploratory Study of Value Added Services

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    Purpose: Using data from 104 countries over a six-year period (2009-2014), this study proposes a value-added predictor in service industries based on the eight indicators of the prosperity index, namely economy, entrepreneurship and opportunity, governance, education, health, safety and security, personal freedom, and social capital. Design/methodology/approach: The fuzzy-set qualitative comparative analysis (fsQCA) and complexity theory, a relatively novel approach for developing and testing the conceptual model, are used for asymmetric modelling of value added in service industries, and the predictive validity of the proposed configural model is tested. Findings: Apart from advancing method and theory, this study simulates causal conditions (i.e., recipes) leading to both high and low scores of the value added of services. The configural conditions indicating a high/low level of value added in service industries can be used as a guiding strategy for marketers, investors and policy makers. Originality/value: An analysis of worldwide data provides complex models demonstrating both how to regulate country conditions to achieve a high value-added score and select a foreign country for investment that offers a high level of value added service

    Making to measure? Reconsidering assessment in professional continuing education

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    Drawing on studies of teachers, accountants and pharmacists conducted in Canada, this essay examines models for assessing professional learning that currently enjoy widespread use in continuing education. These models include professional growth plans, self-administered tests, and learning logs, and they are often used for regulatory as well as developmental purposes by professional associations. The essay argues what others have critiqued about such self-assessment models: that their assumptions about learning are problematic and limiting in a number of respects, privileging human consciousness and intention, and literally ‘making’ a particular professional subject that is atomised and conservative. The essay goes on to suggest alternative perspectives that are receiving increasing attention in theorising work-related learning and that may offer fruitful questions for re-considering the nature of professional learning and its assessment. Three perspectives in particular are outlined, all of which shift the focus from the learning subject to practice as material, emergent and systemic: complexity theory, actor-network theory and cultural-historical activity theory. The discussion concludes with possible approaches to assessment of professional practice suggested by these perspectives

    A comparison of elicitation procedures for connected language analyses in person with aphasia:Concurrent validation of the Story Retell Procedure

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    Among the elicited and observed procedures used to describe, classify, diagnose, measure change, quantify severity, and plan intervention for persons with aphasia, the measurement of connected spoken language has become a stable and valued procedure for many of these purposes. Although recognized, the most valid, reliable, and efficient methods for sampling connected language has received relatively little experimental attention from clinical and experimental aphasiologists. The recently developed Story Retell Procedure (SRP) (Doyle, et al, 2000) has the unique measurement advantage of predetermined targets for the retold stories; however, it relies on the comprehension as well as the production of the individual for the samples from which linguistic measurements are performed. Its concurrent validation has not been established

    Reframing the university as an emergent organization: implications for strategic management and leadership in higher education

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    For the most part, the organisational forms that are currently being adopted by higher education institutions are grounded in the traditional corporate models of organisation that take a rational approach to organisational design and change management. Underlying this account is an assumption of organisational autonomy and the capacity of designated leaders to direct change processes to better align their institutions with societal demands or goals. However, a case is now being made for the consideration of alternative organisational theories or models that offer a different perception on the sources and patterns of organisational change in higher education. These theories perceive organisations more as emergent entities in which change is continuous, often unpredictable and arising mainly from local interactions. The paper surveys the implications that acceptance of the alternative paradigm might have for strategising and change leadership in higher education institutions. It suggests that the accommodation of these alterative paradigms of institutional development in higher education may itself be an emergent process and considers how future research and policy formulation relating to strategic management and leadership might facilitate positive outcomes in that process

    The Western Australian regional forest agreement: economic rationalism and the normalisation of political closure

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    This article explores the constraints imposed by economic rationalism on environmental policy-making in light of Western Australia\u27s (WA) Regional Forest Agreement (RFA) experience. Data derived from interviews with WA RFA stakeholders shed light on their perceptions of the RFA process and its outcomes. The extent to which involvement of science and the public RFA management enabled is analysed. The findings point to a pervasive constrainedness of WA\u27s RFA owing to a closing of the process by the administrative decision-making structures. A dominant economic rationality is seen to have normalised and legitimised political closure, effectively excluding rationalities dissenting from an implicit economic orthodoxy. This article argues for the explication of invisible, economic constraints affecting environmental policy and for the public-cum-political negotiation of the points of closure within political processes
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