516 research outputs found

    What Constitutes 'Discrimination' in Everyday Talk? Argumentative Lines and the Social Representations of Discrimination

    Get PDF
    Most people agree that discrimination is wrong, but the boundary between 'discrimination' and 'not discrimination' is often highly contested in everyday practice. We explore the social representations of 'discrimination' as an object of study in qualitative interviews and focus groups with both minority (self-identified as BAME and/ or gay men) and majority (self-identified as white and/ or heterosexual) participants (n= 54). Our analysis suggests three repeated and pervasive argumentative lines in social representations of discrimination; (1) that there are two distinct kinds of discrimination (hard versus soft), (2) that you need to understand the intention of the actor(s), and (3) that a claim of discrimination requires strong evidence. We outline the macro Functions of these resources to argue that each was non-performative: they appeared to be tools to make claims of discrimination, but in practice they were much more effective at making claims of what was not discrimination

    ‘They're more than animals’::Refugees' accounts of racially motivated violence

    Get PDF
    Previous discursive research has found that minority group members may deny or downplay the existence of discrimination. However, to date little research has addressed the issue of violence against minority group members. This study therefore draws on interviews with asylum seekers and refugees in a Scottish city to analyse their reports of violence committed against them. One form of reporting violence was by way of a complaint available to any speaker, in making no reference to attributes of attackers of victim. When racism was alleged, it was presented as a tentative, reluctant or 'last resort' explanation. The descriptions offered by interviewees reflected the contributions made by the interviewer, highlighting the ways in which these reports are interactional co-productions. The results suggest that accounts from victims of seemingly racially motivated violence may function in similar ways to 'new racism' in making racism seem to 'disappear'. These findings point to the potential difficulties that arise in identifying and looking to challenge instances of ‘new racism’

    A Multidimensional Sketching Interface for Visual Interaction with Corpus-Based Concatenative Sound Synthesis

    Get PDF
    The present research sought to investigate the correspondence between auditory and visual feature dimensions and to utilise this knowledge in order to inform the design of audio-visual mappings for visual control of sound synthesis. The first stage of the research involved the design and implementation of Morpheme, a novel interface for interaction with corpus-based concatenative synthesis. Morpheme uses sketching as a model for interaction between the user and the computer. The purpose of the system is to facilitate the expression of sound design ideas by describing the qualities of the sound to be synthesised in visual terms, using a set of perceptually meaningful audio-visual feature associations. The second stage of the research involved the preparation of two multidimensional mappings for the association between auditory and visual dimensions.The third stage of this research involved the evaluation of the Audio-Visual (A/V) mappings and of Morpheme’s user interface. The evaluation comprised two controlled experiments, an online study and a user study. Our findings suggest that the strength of the perceived correspondence between the A/V associations prevails over the timbre characteristics of the sounds used to render the complementary polar features. Hence, the empirical evidence gathered by previous research is generalizable/ applicable to different contexts and the overall dimensionality of the sound used to render should not have a very significant effect on the comprehensibility and usability of an A/V mapping. However, the findings of the present research also show that there is a non-linear interaction between the harmonicity of the corpus and the perceived correspondence of the audio-visual associations. For example, strongly correlated cross-modal cues such as size-loudness or vertical position-pitch are affected less by the harmonicity of the audio corpus in comparison to weaker correlated dimensions (e.g. texture granularity-sound dissonance). No significant differences were revealed as a result of musical/audio training. The third study consisted of an evaluation of Morpheme’s user interface were participants were asked to use the system to design a sound for a given video footage. The usability of the system was found to be satisfactory.An interface for drawing visual queries was developed for high level control of the retrieval and signal processing algorithms of concatenative sound synthesis. This thesis elaborates on previous research findings and proposes two methods for empirically driven validation of audio-visual mappings for sound synthesis. These methods could be applied to a wide range of contexts in order to inform the design of cognitively useful multi-modal interfaces and representation and rendering of multimodal data. Moreover this research contributes to the broader understanding of multimodal perception by gathering empirical evidence about the correspondence between auditory and visual feature dimensions and by investigating which factors affect the perceived congruency between aural and visual structures

    A Multidimensional Sketching Interface for Visual Interaction with Corpus-Based Concatenative Sound Synthesis

    Get PDF
    The present research sought to investigate the correspondence between auditory and visual feature dimensions and to utilise this knowledge in order to inform the design of audio-visual mappings for visual control of sound synthesis. The first stage of the research involved the design and implementation of Morpheme, a novel interface for interaction with corpus-based concatenative synthesis. Morpheme uses sketching as a model for interaction between the user and the computer. The purpose of the system is to facilitate the expression of sound design ideas by describing the qualities of the sound to be synthesised in visual terms, using a set of perceptually meaningful audio-visual feature associations. The second stage of the research involved the preparation of two multidimensional mappings for the association between auditory and visual dimensions.The third stage of this research involved the evaluation of the Audio-Visual (A/V) mappings and of Morpheme’s user interface. The evaluation comprised two controlled experiments, an online study and a user study. Our findings suggest that the strength of the perceived correspondence between the A/V associations prevails over the timbre characteristics of the sounds used to render the complementary polar features. Hence, the empirical evidence gathered by previous research is generalizable/ applicable to different contexts and the overall dimensionality of the sound used to render should not have a very significant effect on the comprehensibility and usability of an A/V mapping. However, the findings of the present research also show that there is a non-linear interaction between the harmonicity of the corpus and the perceived correspondence of the audio-visual associations. For example, strongly correlated cross-modal cues such as size-loudness or vertical position-pitch are affected less by the harmonicity of the audio corpus in comparison to weaker correlated dimensions (e.g. texture granularity-sound dissonance). No significant differences were revealed as a result of musical/audio training. The third study consisted of an evaluation of Morpheme’s user interface were participants were asked to use the system to design a sound for a given video footage. The usability of the system was found to be satisfactory.An interface for drawing visual queries was developed for high level control of the retrieval and signal processing algorithms of concatenative sound synthesis. This thesis elaborates on previous research findings and proposes two methods for empirically driven validation of audio-visual mappings for sound synthesis. These methods could be applied to a wide range of contexts in order to inform the design of cognitively useful multi-modal interfaces and representation and rendering of multimodal data. Moreover this research contributes to the broader understanding of multimodal perception by gathering empirical evidence about the correspondence between auditory and visual feature dimensions and by investigating which factors affect the perceived congruency between aural and visual structures

    Biophysical study of the DNA charge mimicry displayed by the T7 Ocr protein

    Get PDF
    The homodimeric Ocr protein of bacteriophage T7 is a molecular mimic of a bent double-stranded DNA molecule ~24 bp in length. As such, Ocr is a highly effective competitive inhibitor of the bacterial Type I restriction modification (R/M) system. Thus, Ocr facilitates phage infection of the bacterial cell to proceed unhindered by the action of the R/M defense system. The main aim of this work was to understand the basis of the DNA mimicry displayed by Ocr. The surface of the protein is replete with acidic residues, most or all of which mimic the phosphate backbone of DNA. Aspartate and glutamate residues on the surface of Ocr were either mutated or chemically modified in order to investigate their contribution to the tight binding between Ocr and the EcoKI Type I R/M enzyme. Single or double mutations of Ocr had no discernable effect on binding to EcoKI or its methyltransferase component (M.EcoKI). Chemical modification was then used to specifically modify the carboxyl moieties of Ocr, thereby neutralizing the negative charges on the protein surface. Ocr samples modified to varying degrees were analysed to establish the extent of derivatisation prior to extensive biophysical characterisation to assess the impact of these changes in terms of binding to the EcoKI R/M system. The results of this analysis revealed that the electrostatic mimicry of Ocr increases the binding affinity for its target enzyme by at least ~800-fold. In addition, based on the known 3-D structure of the protein, a set of multiple mutations were introduced into Ocr aimed at eliminating patches of negative charge from the protein surface. Specifically, between 5 and 17 acidic residues were targeted for mutation (Asp and Glu to Asn and Gln, respectively). Analysis of the in vivo activity of the mutant Ocr along with biophysical characterisation of the purified proteins was then performed. Results from these studies identified regions of the Ocr protein that were critical in forming a tight association with the EcoKI R/M system. Furthermore by comparing the relative contribution of different groups of acidic residues to the free energy of binding, the actual mechanism by which Ocr mimics the charge distribution of DNA has been delineated

    ‘It will be hard because I will have to learn lots of English’: Experiences of education for children newly arrived in Australia

    Get PDF
    “This is an Accepted Manuscript of an article published by Taylor & Francis in [International Journal of Qualitative Studies in Education,] on [01 Jan 2015], available online: http:// www.tandfonline.com/10.1080/09518398.2015.1023232.”Educational experiences during childhood are critically important for development, but migrant children often experience unique challenges. To ameliorate these, extra training in English language - such as provided by the Intensive English language program in South Australia (IELP) - is frequently offered to children taking on English as an additional language (EAL). The present study aimed to examine the experience of transition into mainstream classes for children in the IELP, particularly in relation to their overall wellbeing. As such, the study utilised interviews conducted with newly arrived children in Australia aged five to 13 who were enrolled in an IELP, with interviews conducted both pre and post transition into mainstream primary school classes. The findings indicate that most children felt anxious prior to transition, especially regarding speaking English, but were less concerned about this once entering their new class. Making friends was considered to be difficult, but easier when there were children with whom they were familiar from other contexts, or if there was another child in the class with a shared cultural or linguistic background

    Hard hearts: a critical look at liberal humanitarianism in refugee support movements

    Get PDF
    Danielle Every, Martha Augoustino

    Lateral violence within the Aboriginal community in Adelaide: “It affects our identity and wellbeing”

    Get PDF
    The term “lateral violence” describes how members of an oppressed group direct their dissatisfaction inward. This paper reports on qualitative interviews with 30 local Aboriginal participants in Adelaide, South Australia. The purpose was to explore understandings, awareness, experiences, and effects of lateral violence. Most participants completed two questionnaires (the Kessler-5 and negative life events scales) in order to gain further insight into their wellbeing and its association with experiences of lateral violence. Overall, four major interpretative themes emerged from interviews: the predominantly covert and insidious nature of lateral violence; the relationship between racism and lateral violence; challenges to identity as acts of lateral violence; and the destructive effects of lateral violence on wellbeing. The wellbeing scales indicated overall that participants’ psychological distress was in the moderate range, with 29% scoring in the high/very high psychological distress range. Many of the participants with high distress levels relayed traumatic narratives of lateral violence and were exposed to a number of negative life events. It is hoped that by increasing awareness of lateral violence and its effects, this will assist in preventing lateral violence incidences within Indigenous communities
    corecore