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    17837 research outputs found

    With Haraway and Beyond:Towards an Ecofeminist and Contextual Vegan Ethico-Politics

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    Some ecofeminist scholars have argued that being a feminist entails being a contextual vegan. Donna Haraway has opposed this position and received extensive critique. Yet no one, to my knowledge, has systematically studied how Haraway's theory can enrich ecofeminist vegan literature. To this end, I first establish the method of analysis, and/or framework, I use to read Haraway's work, what I call, interconstitutionality. Next, I delineate the limitations of Haraway's thinking insofar as it assumes a position of human dominion over animals. I then explore some aspects of Haraway's theory that can enrich ecofeminist vegan scholarship and provide insights to go beyond the limits of Haraway's corpus regarding: (1) the entanglements and embodied vulnerabilities that constitute human and non-human animals; (2) the agency of animals and the importance of curiosity and respect in leading just lives with other than human animals; (3) the ethical relevance of otherness, difference, and vulnerability at multiple scales: subject, community/herd, species, and cross-species (e.g., there are shared vulnerabilities between beings who are pregnant regardless of the species they belong to); and (4) the unavoidable violence that human existence entails. The text closes by affirming an ecofeminist non-anthropocentric vegan ontology and ethico-politics that aspires to overcome human dominion over animals

    Bubble Necessity Theorem

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    Asset price bubbles are situations where asset prices exceed the fundamental values defined by the present value of dividends. This paper presents a conceptually new perspective: the necessity of bubbles. We establish the Bubble Necessity Theorem in a plausible general class of economic models: with faster long-run economic growth (G) than dividend growth (Gd) and counterfactual long-run autarky interest rate (R) below dividend growth, all equilibria are bubbly with non-negligible bubble sizes relative to the economy. This bubble necessity condition naturally arises in economies with sufficiently strong savings motives and multiple factors or sectors with uneven productivity growth

    Effect of mechanical stratigraphy on the structure and kinematics of salt-bearing fold-and-thrust belts:Insights from scaled analogue experiments with optical strain monitoring (digital image correlation)

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    2D contractional scaled analogue experiments with composite materials including silica-sand and mica-flakes for overburden and silicone for salt analogue are used to investigate effects of mechanical stratigraphy on the structural evolution and kinematics of salt-detached fold-thrust-belts. Specific parameters tested are mechanical stratigraphy of the overburden and thickness variation of the basal silicone layer. The silicone-detached models in general are characterized by low-taper thrust wedge geometries and non-systematic vergence of folds and thrusts. Strain localization in the undeformed layer occurs as an in-sequence foreland breaking sequence. Strain is nucleating as detachment folds including thrust-bounded and concentric folds. Increased shortening develops break-thrusts in fold limbs. In-sequence frontal thrust interacts with out-of-sequence reactivation of older thrusts in the internal thrust wedge. Syn-kinematic silicone mobilization causes diapirism, allochthonous sheets and source-fed thrust. The specific distribution of discordant and allochthonous silicone structures vary with the mechanical stratigraphy. The impact of the mica-interlayer in the overburden sequence is strain-dependent. It strengthens the undeformed sand-pack compared to initial thrusting while active thrusts with mica-flakes in shear zones are weaker and active for longer than in homogeneous sand-pack. The longevity of thrusts correlates with the transfer of silicone to external domains and hanging-walls of thrusts. The silicone thickness controls the strain nucleation modes whether thrusting-dominated or folding-dominated predating main-thrusting stages. It also governs silicone supply and flow regimes with thick silicone source layers being readily remobilized to source-fed thrust and inflate silicone massifs in the foreland. Insights from the modelling results are that the formation of large-transport source-fed thrusts such as Quele Thrust (China) and Chazuta Thrust (Peru) observed in salt-bearing FTB's is possibly attributed to salt detachment thickness and anisotropic overburden resulting from mechanically layered stratigraphy

    Bubble Necessity Theorem

    Get PDF
    Asset price bubbles are situations where asset prices exceed the fundamental values defined by the present value of dividends. This paper presents a conceptually new perspective: the necessity of bubbles. We establish the Bubble Necessity Theorem in a plausible general class of economic models: with faster long-run economic growth (G) than dividend growth (Gd) and counterfactual long-run autarky interest rate (R) below dividend growth, all equilibria are bubbly with non-negligible bubble sizes relative to the economy. This bubble necessity condition naturally arises in economies with sufficiently strong savings motives and multiple factors or sectors with uneven productivity growth

    Quantum Gravity Signature in a Thermodynamic Observable

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    Proposed experiments for obtaining empirical evidence for a quantum description of gravity in a table-top setting focus on detecting quantum information signatures, such as entanglement or non-Gaussianity production, in gravitationally interacting quantum systems. Here, we explore an alternative approach where the quantization of gravity could be inferred through measurements of macroscopic, thermodynamical quantities, without the need for addressability of individual quantum systems. To demonstrate the idea, we take as a case study a gravitationally self-interacting Bose gas, and consider its heat capacity. We find a clear-cut distinction between the predictions of a classical gravitational interaction and a quantum gravitational interaction in the heat capacity of the Bose gas

    Deletion-Contraction and the Surface Tutte Polynomial

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    In this paper we unify two families of topological Tutte polynomials. The first family is that coming from the surface Tutte polynomial, a polynomial that arises in the theory of local flows and tensions. The second family arises from the canonical Tutte polynomials of Hopf algebras. Each family includes the Las Vergnas, Bollobas–Riordan, and Krushkal polynomials. As a consequence we determine a deletion–contraction definition of the surface Tutte polynomial and recursion relations for the number of local flows and tensions in an embedded graph

    Incorporating Encoding into Quantum System Design

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    When creating a quantum system whose natural dynamics provide useful computational operations, designers have two key tools at their disposal: the (constrained) choice of both the Hamiltonian and the the initial state of the system (an encoding). Typically, we fix the design, and utilise encodings \emph{post factum} to tolerate experimental imperfections. In this paper, we describe a vital insight that incorporates encoding into the design process, with radical consequences. This transforms the study of perfect state transfer from the unrealistic scenario of specifying the Hamiltonian of an entire system to the far more realistic situation of being given a Hamiltonian over which we had no choice in the design, and designing time control of just two parameters to still achieve perfect transfer

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