718,304 research outputs found
Embodied memory and curatorship in children’s digital video production
Digital video production in schools is often theorised, researched and written about in two ways: either as a part of media studies practice or as a technological innovation, bringing new, “creative”, digital tools into the curriculum. Using frameworks for analysis derived from multimodality theory, new literacy studies and theories of embodied identity, this study examines a video production made by two children who were taking part in a video project on the theme of self-representation and identity. Evidence was collected in the form of production notes, video interviews and the media text itself. The findings suggest that this way of working in new media can be thought of as a new literacy practice, metaphorically conceived as a form of “curatorship” of children’s own lives in the uses of multimodal editing tools for the intertextual organisation of digital media assets and their subsequent exhibition to peer groups and beyond
Spin Analysis of Supersymmetric Particles
The spin of supersymmetric particles can be determined at colliders
unambiguously. This is demonstrated for a characteristic set of non-colored
supersymmetric particles -- smuons, selectrons, and charginos/neutralinos. The
analysis is based on the threshold behavior of the excitation curves for pair
production in collisions, the angular distribution in the production
process and decay angular distributions. In the first step we present the
observables in the helicity formalism for the supersymmetric particles.
Subsequently we confront the results with corresponding analyses of
Kaluza-Klein particles in theories of universal extra space dimensions which
behave distinctly different from supersymmetric theories. It is shown in the
third step that a set of observables can be designed which signal the spin of
supersymmetric particles unambiguously without any model assumptions. Finally
in the fourth step it is demonstrated that the determination of the spin of
supersymmetric particles can be performed experimentally in practice at an
collider.Comment: 39 pages, 14 figure
Psycholinguistic Perspectives Underpinning the Effects of Practice in Second Language Acquisition
In second language (L2) classrooms, various types of practice are implemented to develop L2 competence. However, as practice can be widely defined, L2 teachers need to understand the effective type of practice and the way of integrating practice into their lessons. This paper aims to elucidate the cognitive aspects of practice for L2 learning by reviewing the cognitive perspectives in L2 development (e.g., interface debate between explicit and implicit L2 knowledge), information-processing theories (e.g., skill acquisition theory), and psycholinguistic models/theories involving cognitive processes in L2 production, such as Levelt’s production model and transfer appropriate processing theory. Finally, pedagogical implications in implementing practice into L2 classrooms are suggested
The prevalent theory of construction is a hindrance for innovation
It is argued that construction innovation is significantly hindered by the prevalent theory of construction, which is implicit and deficient. There are three main mechanisms through which this hindrance is being caused.
Firstly, because production theories in general, as well as construction theories specifically, have been implicit, it has not been possible to transfer such radical managerial innovation as mass production or lean production from manufacturing to construction. Direct application of these production templates in construction has been limited due to different context in construction in correspondence to manufacturing. On the other hand, without explicit theories, it has not been possible to access core ideas of concepts and methods of these templates, and to recreate them in construction environment. In consequence, theory and practice of construction has not progressed as in manufacturing.
Secondly, it is argued that the underlying, even if implicit, theoretical model of construction is the transformation model of production. There are two first principles in the transformation model. First, the total transformation can be achieved only by realising all parts of it. Thus, we decompose the total transformation into parts, finally into tasks, ensure that all inputs are available and assign these tasks to operatives or workstations. Second, minimising the cost of each task, i.e. each decomposed transformation, minimises the cost of production. It is argued that these principles, in which uncertainty and time are abstracted away, are counterproductive, and lead to myopic control and inflated variability. Practical examples show that these deficiencies and related practical constraints hinder the top-down implementation of innovations.
Thirdly, empirical research shows that also bottom-up innovation - systematic learning and problem solving - is hindered by this deficient theory. Thus, the advancement of construction innovation requires that a new, explicit and valid theory of construction is created, and business models and control methods based on it are developed
Reforming project management: the role of lean construction
Project management as taught by professional societies and applied in current practice must be reformed because it is inadequate today and its performance will continue to decline as projects become more uncertain, complex and pressed for speed. Project management is failing because of flawed assumptions and idealized theory: it rests on a
faulty understanding of the nature or work in projects, and a deficient definition of control. It is argued that a reform of project management will be driven by theories from
production management that add the management of workflow and the creation and delivery of value to the current emphasis on activities. Of all the approaches to production
management, the theory and principles drawn from Lean Production seem to be best suited for project management. Promising results in this regard have been reached already in one project management area, namely in Lean Construction
Cyberspace As/And Space
The appropriate role of place- and space-based metaphors for the Internet and its constituent nodes and networks is hotly contested. This essay seeks to provoke critical reflection on the implications of place- and space-based theories of cyberspace for the ongoing production of networked space more generally. It argues, first, that adherents of the cyberspace metaphor have been insufficiently sensitive to the ways in which theories of cyberspace as space themselves function as acts of social construction. Specifically, the leading theories all have deployed the metaphoric construct of cyberspace to situate cyberspace, explicitly or implicitly, as separate space. This denies all of the ways in which cyberspace operates as both extension and evolution of everyday spatial practice. Next, it argues that critics of the cyberspace metaphor have confused two senses of space and two senses of metaphor. The cyberspace metaphor does not refer to abstract, Cartesian space, but instead expresses an experienced spatiality mediated by embodied human cognition. Cyberspace in this sense is relative, mutable, and constituted via the interactions among practice, conceptualization, and representation. The insights drawn from this exercise suggest a very different way of understanding both the spatiality of cyberspace and its architectural and regulatory challenges. In particular, they suggest closer attention to three ongoing shifts: the emergence of a new sense of social space, which the author calls networked space; the interpenetration of embodied, formerly bounded space by networked space; and the ways in which these developments alter, instantiate, and disrupt geographies of power
The poet sings: “resonance” in Paul Valéry’s poietics
This paper analyses Paul Valéry’s theories relating to his stated goal of poetic production: the attainment of “resonance” and a “singing-state”. My intention is to defend Valéry’s theory as a valid and consistent model of the creative process in poetry. To that end, I will draw support from T. W. Adorno’s claim that Valéry’s manner of reflective journalising in his Notebooks can furnish us with what he calls “aesthetic insight”. The consistency of Valéry’s theory will be supported by comparisons with the inferentialist understanding of semantics. Valéry proves to be a reliable exemplar of what might be called a “practice-led” aesthetics
The Prevalent Theory of Construction a Hindrance for Innovation
It is argued that construction innovation is significantly hindered by the prevalent theory of construction, which is implicit and deficient. There are three main mechanisms through which this hindrance is being caused. Firstly, because production theories in general, as well as construction theories specifically, have been implicit, it has not been possible to transfer such radical managerial innovation as mass production or lean production from manufacturing to construction. Direct application of these production templates in construction has been limited due to different context in construction in correspondence to manufacturing. On the other hand, without explicit theories, it has not been possible to access core ideas of concepts and methods of these templates, and to recreate them in construction environment. In consequence, theory and practice of construction has not progressed as in manufacturing. Secondly, it is argued that the underlying, even if implicit, theoretical model of construction is the transformation model of production. There are two first principles in the transformation model. First, the total transformation can be achieved only by realising all parts of it. Thus, we decompose the total transformation into parts, finally into tasks, ensure that all inputs are available and assign these tasks to operatives or workstations. Second, minimising the cost of each task, i.e. each decomposed transformation, minimises the cost of production. It is argued that these principles, in which uncertainty and time are abstracted away, are counterproductive, and lead to myopic control and inflated variability. Practical examples show that these deficiencies and related practical constraints hinder the top-down implementation of innovations. Thirdly, empirical research shows that also bottom-up innovation - systematic learning and problem solving - is hindered by this deficient theory. Thus, the advancement of construction innovation requires that a new, explicit and valid theory of construction is created, and business models and control methods based on it are developed
Entrepreneurship: economic and social embedding of the production of futures
Entrepreneurship, the practice of creating new economic enterprises through innovation that are sustained by economic performance, is, theoretically, an individualistic account of socio-economic change. If new enterprises and new economies are created by entrepreneurship then to what extent does this activity harbour prescience and to what extent does its creative destruction carry moral responsibility? Although entrepreneurship is socially constructed as an individualistic account of the production of new patterns of organisation, theories of entrepreneurship span a number of ontologies, i.e. individual motives, new firm formation, socially beneficial activity, the production of networks and multi-organisational forms, and even of micro economies. The paper discusses the conception entrepreneurship as a set of socially constructed processes which together produce futures at multiple ontological levels, and seeks to identify relationships between this body of knowledge and anticipating, creating and 'minding' futures
Highlighting issues in current conceptions of user experience design through bringing together ideas from HCI and social practice theory
A socio-technical reconceptualisation of use, and the active roles of the material and users in design prompt us to question professional designers’ roles and agencies within the wider realm of social (re)production. This paper focuses on bringing together key concepts of UX design and theories of practice, and pointing out some challenges that lie ahead of professional designers in the conception of their work. Theories used in HCI and historical legacies of production models may limit a full conception of ‘experience’ – or a locating of the social ‘motor’– that can bring change about, as well as ‘hide’ other factors that make up professional design. We argue that there are limitations with current theories underlying design practice, and that the commonly conceived concept of agency in design and use, and the ontological place allocations of the professional designer and the user in the mechanisms of social (re)production need to be revisited. An investigation of professional designing as a social practice can serve the purpose to illustrate alternative conceptions of agency in professional designing, and help designers to be more aware of the social dynamics in their work
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