Postmodern synergistic knowledge creation:Extending the boundaries of disability studies

The tensions between the competing discourses of the medical and the social models of disability have traditionally provided a platform for discussion and research in the fields of disability studies and special needs education. Over the last 30 years a wealth of literature has consolidated the debate and produced particular knowledge of impairment and disability. In this paper we argue that by privileging notions of 'deficit' within these medical or social model perspectives the richness of the lived experience of people with impairments is denied. The individual becomes lost within a framework of medical symptoms or social inequalities. This paper considers alternative approaches which reveal a fuller picture of the lives of people with impairments. The authors conducted two separate empirical studies, one employing a Deleuzo-Guattarian perspective, the other a Bourdieusian perspective. In this paper we illustrate how these theories of practice can reveal situated understandings of the individual with impairments and his/her daily life. By embracing new understandings and different theoretical perspectives we show how new knowledge can emerge to illuminate the fluid and ever-changing notions of 'disability', 'inclusion' and 'exclusion', which form elements of the individual lived experience of the research participants

Semantic Security and Indistinguishability in the Quantum World

At CRYPTO 2013, Boneh and Zhandry initiated the study of quantum-secure encryption. They proposed first indistinguishability definitions for the quantum world where the actual indistinguishability only holds for classical messages, and they provide arguments why it might be hard to achieve a stronger notion. In this work, we show that stronger notions are achievable, where the indistinguishability holds for quantum superpositions of messages. We investigate exhaustively the possibilities and subtle differences in defining such a quantum indistinguishability notion for symmetric-key encryption schemes. We justify our stronger definition by showing its equivalence to novel quantum semantic-security notions that we introduce. Furthermore, we show that our new security definitions cannot be achieved by a large class of ciphers -- those which are quasi-preserving the message length. On the other hand, we provide a secure construction based on quantum-resistant pseudorandom permutations; this construction can be used as a generic transformation for turning a large class of encryption schemes into quantum indistinguishable and hence quantum semantically secure ones. Moreover, our construction is the first completely classical encryption scheme shown to be secure against an even stronger notion of indistinguishability, which was previously known to be achievable only by using quantum messages and arbitrary quantum encryption circuits.Comment: 37 pages, 2 figure

Conflict vs causality in event structures

Event structures are one of the best known models for concurrency. Many variants of the basic model and many possible notions of equivalence for them have been devised in the literature. In this paper, we study how the spectrum of equivalences for Labelled Prime Event Structures built by Van Glabbeek and Goltz changes if we consider two simplified notions of event structures: the first is obtained by removing the causality relation (Coherence Spaces) and the second by removing the conflict relation (Elementary Event Structures). As expected, in both cases the spectrum turns out to be simplified, since some notions of equivalence coincide in the simplified settings; actually, we prove that removing causality simplifies the spectrum considerably more than removing conflict. Furthermore, while the labeling of events and their cardinality play no role when removing causality, both the labeling function and the cardinality of the event set dramatically influence the spectrum of equivalences in the conflict-free setting

Fantastic alterities and The Sandman

This article explores the ways in which the comics medium enhances our understanding of literary models of the Fantastic. It examines the presence and depiction of multiple worlds in Neil Gaiman’s The Sandman, with specific reference to the role of the comics medium and its denial of mimesis when creating such alterities. It initially uses literature review to establish a contemporary working model of the Fantastic, taking as its basis the framework devised by Tzvetan Todorov, and incorporating the later work of Rosemary Jackson, A B Chanady, and Christine Brooke-Rose. It establishes the position of the Fantastic as a literary mode lying between the marvellous (supernatural accepted) and the uncanny (supernatural explained), and clarifies the distinction between the mode of the Fantastic (which encompasses various genres) and the genre itself. The article then considers the ways in which both the form and content of the comics medium sustain the mode of the fantastic. It broadly discusses the ways in which the following factors contribute to this process: • subject matter: fantastic events, super powers, alternate worlds • non-realistic aesthetic: pop art, stylised visuals, fiction of fonts (invoking the tension between hand-drawn and computerised artwork or lettering) • authorial reticence: the possibilities for surpassing or discarding narrative voice • the role of the reader: as both interpreter and co-creator. It then focuses more closely upon the genre of the Fantastic, establishing the ways in which this genre is opposed to both magical realism (outright fantasy) and realism (where such events are explained). It summarises the role of various qualities of the Fantastic in this regard, which include an antinomy between the natural and supernatural, author reticence, over- or under-determined language, and a defiance of absolute meaning in favour of interpretation or hesitation . The article then proceeds to two case studies, taken from Neil Gaiman’s The Sandman: A Game of You and The Kindly Ones. The first analyses the construction of two contrasting alterities (‘The Land’ and ‘New York’) and examines the ways in which, despite initial appearances, these two worlds are both equally removed from the referent of ‘reality’. It proceeds to discuss the use made of over- and under-determined signifiers, the transformation motif, intertextuality, and the redefinition of static notions (home, gender) as fluid and undefined. It deconstructs The Kindly Ones in similar terms, considering the ways in which its triple alterities are all simultaneously validated by the text and the role of motifs such as multiple names and duplicated characters. It concludes that, like the Fantastic, the comics medium exposes the notion of ‘reality’ as a constructed referent, which the text’s alterities comment on. The nature of the medium allows for the construction and sustenance of multiple worlds without recourse to a stable notion of reality. As the reader’s hesitation destabilises interpretation of reality versus fantasy, absolute meaning is denied. It therefore seems that comics offer what might be best described as a postmodern vision of the Fantastic