30,168 research outputs found

    Queer Theory, Visual Culture, and Emotional Resistances in Torremolinos (Spain) during the Sixties and Seventies.

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    This paper proposes an epistemological approximation between the method of visual analysis developed by Aby Warburg in Atlas Mnemosyne, based on concepts such as Nachleben der Antike (the afterlife of Antiquity) and Pathosformel, (the “emotionally charged visual tropes”), and some aspects of the Queer Theory, in particular the concept of "emotional resistances" proposed by Eve Kosofsky Sedgwick with the intention of developing "reparative epistemologies".Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Using the HEGY Procedure When Not All Roots Are Present

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    Empirical studies have shown little evidence to support the presence of all unit roots present in the filter in quarterly seasonal time series. This paper analyses the performance of the Hylleberg, Engle, Granger and Yoo (1990) (HEGY) procedure when the roots under the null are not all present. We exploit the Vector of Quarters representation and cointegration relationship between the quarters when factors 4 (1 L),(1+ L), (1+ L2 ), (1 L2 ) and (1+ L + L2 + L3 ) are a source of nonstationarity in a process in order to obtain the distribution of tests of the HEGY procedure when the underlying processes have a root at the zero, Nyquist frequency, two complex conjugates of frequency / 2 and two combinations of the previous cases. We show both theoretically and through a Monte-Carlo analysis that the t-ratios and and the F-type tests used in the HEGY procedure have the same distribution as under the null of a seasonal random walk when the root(s) is/are present, although this is not the case for the t-ratio tests associated with unit roots at frequency 1 t 2 t / 2 .hegy tests, vector of quarters, unit root tests, seasonality

    Finite element approximation of the viscoelastic flow problem: a non-residual based stabilized formulation

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    In this paper, a three-field finite element stabilized formulation for the incompressible viscoelastic fluid flow problem is tested numerically. Starting from a residual based formulation, a non-residual based one is designed, the benefits of which are highlighted in this work. Both formulations allow one to deal with the convective nature of the problem and to use equal interpolation for the problem unknowns View the MathML sources-u-p (deviatoric stress, velocity and pressure). Additionally, some results from the numerical analysis of the formulation are stated. Numerical examples are presented to show the robustness of the method, which include the classical 4: 1 planar contraction problem and the flow over a confined cylinder case, as well as a two-fluid formulation for the planar jet buckling problem.Peer ReviewedPostprint (author's final draft

    The Impact of Protest Responses in Choice Experiments

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    Not much attention has been given to protest responses in choice experiments (CE). Using follow-up statements, we are able to identify protest responses and compute welfare estimates with and without the inclusion of such protest responses. We conclude that protest responses are fairly common in CE, and their analysis affects the statistical performance of the empirical models. In particular, when the sample is corrected by protests, our results come from utility consistent models. Thus, future choice experiments should consider the role of protest responses as contingent valuation studies have done.Protest Responses, Choice Experiments

    ‘Saben moltes coses contra molts convessos de Xàtiva e de València’. Converted Jews in the Kingdom of Valencia: Denunciation and social Betrayal in Late 15th century Xàtiva

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    The article analyses the mechanisms of denunciation used in the early years of operation of the Royal Inquisition court of Valencia in the late 15th century. Our study of the testimony given by a group of old Christians who denounced various Jewish converts in the city of Xàtiva has enabled us to reconstruct how denunciation took place, and the development of the climate of social betrayal which was encouraged by the inquisitorial authorities. We have identified the informants —old Christians— and those denounced —Jewish converts— and their respective socio-professional occupations. The informants were extremely intolerant of their Jewish converso neighbours, whose attitudes they monitored. They used the new horizontal mechanisms for social control, implemented, disseminated and encouraged by the inquisitorial authorities, which encouraged old Christians to observe, monitor and report dissident behaviour and practices among Jewish converts in Valencia.This article has been written within the framework of the following research projects: Fundamentos de identidad política: La construcción de identidades políticas urbanas en la Península Ibérica en el tránsito a la modernidad (HAR2009-08946) and Inquisición y sociedades urbanas. Los Tribunales de Valencia, Teruel y Cuenca entre los siglos XV-XVI (HAR2012-34444), both funded by the Ministry of Science and Innovation of the Government of Spain

    An optimal transportation approach for assessing almost stochastic order

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    When stochastic dominance FstGF\leq_{st}G does not hold, we can improve agreement to stochastic order by suitably trimming both distributions. In this work we consider the L2L_2-Wasserstein distance, W2\mathcal W_2, to stochastic order of these trimmed versions. Our characterization for that distance naturally leads to consider a W2\mathcal W_2-based index of disagreement with stochastic order, εW2(F,G)\varepsilon_{\mathcal W_2}(F,G). We provide asymptotic results allowing to test H0:εW2(F,G)ε0H_0: \varepsilon_{\mathcal W_2}(F,G)\geq \varepsilon_0 vs Ha:εW2(F,G)<ε0H_a: \varepsilon_{\mathcal W_2}(F,G)<\varepsilon_0, that, under rejection, would give statistical guarantee of almost stochastic dominance. We include a simulation study showing a good performance of the index under the normal model
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