216 research outputs found

    A manifesto for the creative economy

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    The UK\u27s creative economy is one of its great national strengths, historically deeply rooted and accounting for around one-tenth of the whole economy. It provides jobs for 2.5 million people – more than in financial services, advanced manufacturing or construction – and in recent years, this creative workforce has grown four times faster than the workforce as a whole. But behind this success lies much disruption and business uncertainty, associated with digital technologies. Previously profitable business models have been swept away, young companies from outside the UK have dominated new internet markets, and some UK creative businesses have struggled to compete. UK policymakers too have failed to keep pace with developments in North America and parts of Asia. But it is not too late to refresh tired policies. This manifesto sets out our 10-point plan to bolster one of the UK\u27s fastest growing sectors

    Applying the Open Source Development Model to Knowledge Work

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    This paper introduces a distinction between two different types of information goods in order to analyse the processes governing the review and integration of multi-authored contributions to information goods such as those produced through collaborations using the Internet as well as modular information goods such as open source software. It is argued that these distinctions are important because they suggest different organisational arrangements for producing such information goods. This method of analysing the nature of the information goods is employed to examine different organisational arrangements using the analogy of collaboration for traditional publication to identify actors and processes. The analysis of 'contributors' is extended from authorship to collectors and researchers. The paper examines a small survey of the governance procedures employed in projects that employ open source methods for collecting various types of information. We noted the prime role of the recruitment process in the relative success of the examples that we examined (ODP, Wikipedia, Nupedia, MathLearning, VRoma, and Web of Life). For these 'collection' efforts, the role of hierarchy in editing and review of project submissions appears to be important than in open source communities and may be an impediment to recruitment and project development. A number of directions for further research are identified.open source software, collaboration, hierarchies, trust, teams, co-operation

    The Open Source Way of Working: a New Paradigm for the Division of Labour in Software Development?

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    The interest the Open Source Software Development Model has recently raised amongst social scientists has resulted in an accumulation of relevant research concerned with explaining and describing the motivations of Open Source developers and the advantages the Open Source methodology has over traditional proprietary software development models. However, existing literature has often examined the Open Source phenomenon from an excessively abstract and idealised perspective of the common interests of open source developers, therefore neglecting the very important organisational and institutional aspects of communities of individuals that may, in fact, have diverse interests and motivations. It is the aim of this paper to begin remedying this shortcoming by analysing the sources of authority in Open Source projects and the hierarchical structures according to which this authority is organised and distributed inside them. In order to do so, a theoretical framework based on empirical evidence extracted from a variety of projects is built, its main concerns being the description and explanation of recruitment, enculturation, promotion and conflict resolution dynamics present in Open Source projects. The paper argues that 'distributed authority' is a principal means employed by such communities to increase stability, diminish the severity and scope of conflicts over technical direction, and ease the problems of assessing the quality of contributions. The paper also argues that distributed authority is principally derived from interpersonal interaction and the construction of trust between individuals drawn to the project by diverse interests that are mediated and moderated through participants' common interest in the project's successful outcome. The paper presents several conclusions concerning the governance of open source communities and priorities for future research.open source software, hierarchies, trust, teams, co-operation.

    The net effect: using social media data to understand the impact of a conference on social networks

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    The research uses social media data from Twitter to develop a methodology for understanding the effects of events and conferences. Key findings: Social media data offers a rich source of information to understand the effects of events on networking. Attending events is associated with a much higher rate of growth in Twitter connections among event participants than with people outside the event. Many of the connections formed at events are between people who already have a mutual connection on Twitter, indicating that they are more likely to have met in the longer-term. However, there are also connections between people that are further apart in the Twitter network before the event. This is particularly true for international connections. Within conferences one can see social networking behaviour consistent with commercial incentives e.g. consultants connecting with potential clients (but not with each other), or people connecting along language lines

    Two Species of Vortices in a massive Gauged Non-linear Sigma Model

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    Non-linear sigma models with scalar fields taking values on CPn\mathbb{C}\mathbb{P}^n complex manifolds are addressed. In the simplest n=1n=1 case, where the target manifold is the S2\mathbb{S}^2 sphere, we describe the scalar fields by means of stereographic maps. In this case when the U(1)\mathbb{U}(1) symmetry is gauged and Maxwell and mass terms are allowed, the model accommodates stable self-dual vortices of two kinds with different energies per unit length and where the Higgs field winds at the cores around the two opposite poles of the sphere. Allowing for dielectric functions in the magnetic field, similar and richer self-dual vortices of different species in the south and north charts can be found by slightly modifying the potential. Two different situations are envisaged: either the vacuum orbit lies on a parallel in the sphere, or one pole and the same parallel form the vacuum orbit. Besides the self-dual vortices of two species, there exist BPS domain walls in the second case. Replacing the Maxwell contribution of the gauge field to the action by the second Chern-Simons secondary class, only possible in (2+1)(2+1)-dimensional Minkowski space-time, new BPS topological defects of two species appear. Namely, both BPS vortices and domain ribbons in the south and the north charts exist because the vacuum orbit consits of the two poles and one parallel. Formulation of the gauged CP2\mathbb{C}\mathbb{P}^2 model in a Reference chart shows a self-dual structure such that BPS semi-local vortices exist. The transition functions to the second or third charts break the U(1)×SU(2)\mathbb{U}(1)\times\mathbb{S}\mathbb{U}(2) semi-local symmetry, but there is still room for standard self-dual vortices of the second species. The same structures encompassing NN complex scalar fields are easily generalized to gauged CPN\mathbb{C}\mathbb{P}^N models.Comment: 39 pages, 23 figures (extended version), to be published in JHE

    Dissecting zero modes and bound states on BPS vortices in Ginzburg-Landau superconductors

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    In this paper the zero modes of fluctuation of cylindrically symmetric self-dual vortices are analyzed and described in full detail. These BPS topological defects arise at the critical point between Type II and Type I superconductors, or, equivalently, when the masses of the Higgs particle and the vector boson in the Abelian Higgs model are equal. In addition, novel bound states of Higss and vector bosons trapped by the self-dual vortices at their core are found and investigated.Comment: 29 pages, 51 figure
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