22,859 research outputs found

    The 'Other' laughs back: Humour and resistance in anti-racist comedy

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    This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2010 The Author.This article outlines the ‘reverse discourses’ of black, African-American and Afro-Caribbean comedians in the UK and USA. These reverse discourses appear in comic acts that employ the sign-systems of embodied and cultural racism but develop, or seek to develop, a reverse semantic effect. I argue the humour of reverse discourse is significant in relation to racism because it forms a type of resistance that can, first, act rhetorically against racist meaning and so attack racist truth claims and points of ambivalence. Second, and connected to this, it can rhetorically resolve the ambiguity of the reverse discourse itself. Alongside this, and paradoxically, reverse discourses also contain a polysemic element that can, at times, reproduce racism. The article seeks to develop a means of analysing the relationship between racist and non-racist meaning in such comedic performance.ESR

    New European tricksters: Polish jokes in the context of European Union labour migration

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    In the context of contemporary European labour migration, where the most publicised pattern of labour migration sees Eastern European migrants move West, the dominant scholarly interpretation of Polish jokes is not applicable for the analysis of much of the joking by or about the Poles. Humour scholars frequently categorise jokes about ethnic groups into stupid or canny categories, and the Poles have been the butt of stupidity (‘Polack’) jokes in Europe and the United States. Today, in the European Union, Polish stupidity stereotyping in humour is less active and the Polish immigrant is hard working and a threat to indigenous labour, yet joking does not depict this threat in a canny Pole. The article applies the liminal concept of the trickster – an ambiguous border crosser or traveller – to elaborate some of the characteristics of jokes told by and about Polish migrants in the EU, mainly in the British context. A more robust explanatory framework is thus offered than is currently available in humour studies

    The emergence of environmental homeostasis in complex ecosystems

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    The Earth, with its core-driven magnetic field, convective mantle, mobile lid tectonics, oceans of liquid water, dynamic climate and abundant life is arguably the most complex system in the known universe. This system has exhibited stability in the sense of, bar a number of notable exceptions, surface temperature remaining within the bounds required for liquid water and so a significant biosphere. Explanations for this range from anthropic principles in which the Earth was essentially lucky, to homeostatic Gaia in which the abiotic and biotic components of the Earth system self-organise into homeostatic states that are robust to a wide range of external perturbations. Here we present results from a conceptual model that demonstrates the emergence of homeostasis as a consequence of the feedback loop operating between life and its environment. Formulating the model in terms of Gaussian processes allows the development of novel computational methods in order to provide solutions. We find that the stability of this system will typically increase then remain constant with an increase in biological diversity and that the number of attractors within the phase space exponentially increases with the number of environmental variables while the probability of the system being in an attractor that lies within prescribed boundaries decreases approximately linearly. We argue that the cybernetic concept of rein control provides insights into how this model system, and potentially any system that is comprised of biological to environmental feedback loops, self-organises into homeostatic states

    Tipping points in complex coupled life-environment systems

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    Simple models of complex phenomena provide powerful insights and suggest low-level mechanistic descriptions. The Earth system arises from the interaction of subsystems with multi-scale temporal and spatial variability; from the microbial to continental scales, operating over the course of days to geological time. System-level homeostasis has been demonstrated in a number of conceptual, artificial life, models which share the advantage of a thorough and transparent analysis. We reintroduce a general model for a coupled life-environment model, concentrating on a minimal set of assumptions, and explore the consequences of interaction between simple life elements and their shared, multidimensional environment. In particular stability, criticality and transitions are of great relevance to understanding the history, and future of the Earth system. The model is shown to share salient features with other abstract systems such as Ashby's Homeostat and Watson and Lovelock's Daisyworld. Our generic description is free to explore high-dimensional, complex environments, and in doing so we show that even a small increase in the environmental complexity gives rise to very complex attractor landscapes which require a much richer conception of critical transitions and hysteresi

    Dimension- and shape-dependent thermal transport in nano-patterned thin films investigated by scanning thermal microscopy

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    Scanning thermal microscopy (SThM) is a technique which is often used for the measurement of the thermal conductivity of materials at the nanometre scale. The impact of nano-scale feature size and shape on apparent thermal conductivity, as measured using SThM, has been investigated. To achieve this, our recently developed topography-free samples with 200 and 400 nm wide gold wires (50 nm thick) of length of 400–2500 nm were fabricated and their thermal resistance measured and analysed. This data was used in the development and validation of a rigorous but simple heat transfer model that describes a nanoscopic contact to an object with finite shape and size. This model, in combination with a recently proposed thermal resistance network, was then used to calculate the SThM probe signal obtained by measuring these features. These calculated values closely matched the experimental results obtained from the topography-free sample. By using the model to analyse the dimensional dependence of thermal resistance, we demonstrate that feature size and shape has a significant impact on measured thermal properties that can result in a misinterpretation of material thermal conductivity. In the case of a gold nanowire embedded within a silicon nitride matrix it is found that the apparent thermal conductivity of the wire appears to be depressed by a factor of twenty from the true value. These results clearly demonstrate the importance of knowing both probe-sample thermal interactions and feature dimensions as well as shape when using SThM to quantify material thermal properties. Finally, the new model is used to identify the heat flux sensitivity, as well as the effective contact size of the conventional SThM system used in this study
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