448,964 research outputs found

    Experimentation with Accumulation

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    We study signal-dependent experimentation in the presence of accumulation and show that the passive-learner’s action surprisingly coincides with the experimentor’s when the unknown term is the one determining the decay rate of the stock, while they differ when the parameter being learned is the one measuring the accumulation rate. These results highlight the importance of the dynamic structure of the problem in signal-dependent experimentation. Moreover, they have important consequences for the pollutionaccumulation debate currently in progress.

    Cuando el habito lo hace el monje: dos santos sastres

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    En este articulo se presentan dos comedias de santos donde los protagonistas son sastres. El primer texto, Santo y sastre de Tirso de Molina es bastante conocido y ha recibido cierta atencion critica. El segundo, El lego de Alcala de Luis Velez de Guevara se pudo quiza inspirar en el primero como respuesta para atacar al mercedario, enemigo literario y politico de Velez.Article sur deux comedias de santos ou les protagonistes sont des tailleurs. Le premier texte, Santo y sastre de Tirso de Molina, assez connu des spécialistes aurait pu inspirer le deuxième, El lego de Alcala de Luis Vélez de Guevara. J'avance dans l'article que le deuxième auteur aurait écrit sa pièce en réponse à la première pour attaquer Tirso de Molina, son ennemi littéraire et politique

    Creating Urban Agriculture in the Corridors of Freedom - Case of the Turffontein Node

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    Planning Honours Final Report 2014, Wits UniversityThe concept of urban agriculture as a phenomenon is fast gaining momentum throughout the world. Although there has been great recognition of the social benefits associated with urban agricultural initiatives, such as poverty reduction, increasing food security and creating employment opportunities, this research focuses on the spatial design and planning of urban food gardens and how urban agriculture is manifesting in the City of Johannesburg. This research sought to establish how urban agriculture manifests in the City of Johannesburg with a focus on the Corridors of Freedom plans, which are being put forward by the City of Johannesburg, of which special attention has been given to the Turffontein Node in this report. Despite the spatial and physical orientation of the paper, the effects of aspects such as safety, security, education and management of space has been touched on and assists in the understanding of the nature of various spaces available for urban food gardens. Viewing urban agriculture as an ‘in-fill’ activity means that it is not seen as something that the city is responsible for implementing but instead is something that anyone can begin if they are able to identify the correct spaces available.CompAir S

    The funeral fiesta at the Science Museum

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    Todos santos, or día de los muertos est une des fêtes les plus connues et les plus visibles des cérémonies mexicaines qui commémorent le retour des morts auprès de leur famille grâce à la tentation provoquée lors de la préparation de leurs plats préférés. Cet article nous propose une observation ethnographique de la recomposition d’une exposition sur la nourriture au sein de la reconfiguration d’une exposition permanente du Deutsches Hygiene-Museum à Dresde. Cette transformation inclue une représentation audiovisuelle de todos santos. L’article s’appuie et analyse la participation de l’auteure au processus de conceptualisation en lien avec l’équipe des conservateurs dans le déroulement de sa modélisation. L’expérience filmique de todos santos, dans l’exposition, ainsi que les expériences sensorielles décontextualisées ou recontextualisées et la dimension de paternité sensorielle seront au cœur des enjeux et l’analyse du processus engagé.Todos santos, or día de los muertos, is one of the most important and globally most visible Mexican festivities celebrating the return of the dead to their families, through the enticement of their favorite foodstuffs. This article looks ethnographically at the re-design of an exhibition on food as part of the re-modeling of the permanent exhibition at the Deutsches Hygiene-Museum in Dresden. This re-design contains an audiovisual representation of todos santos. Based on the author’s participation in the process of planning the exhibition with the team of curators in the course of its design and filming todos santos in a Mexican community in Berlin for this museum exhibition, sensory re-and de- contextualization and the question of sensory authorship are discussed.Todos santos, o día de los muertos, es una de las fiestas mexicanas más importantes y visibles que celebra el retorno de los muertos a sus familias. Para lograr dicho retorno, se seduce a los muertos con sus comidas favoritas. Este artículo propone una mirada etnográfica sobre el rediseño de una exposición sobre comida que incluye una representación audiovisual de todos santos y que forma parte de la remodelación de la exposición permanente del Deutsches Hygiene-Museum de Dresden. Basado en mi propia participación en el proceso de planificación de la exposición (juntamente con el equipo de comisarios) que incluye el diseño y filmación de todos santos en una comunidad mexicana en Berlín, este artículo aborda la discusión de la recontextualización y la descontextualización sensorial, así como la cuestión de la autoría sensorial

    Recurrent Upper Quadrant Pain: A Fish Bone Secondary to Gastric Perforation and Liver Abscess

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    A 60-year-old male patient was admitted to our hospital for recurrent upper quadrant pain for 1 month. He had a past history of coronary artery disease. After admission, he repeatedly suffered from high-grade fever, chills and upper quadrant pain. Computed tomography (CT) showed a round hypodense mass in the left lobe of the liver, approximately 2.7 × 2.2 cm in size, and a fish bone was confirmed by surgery in the left lobe of liver. The patient was cured completely after surgical removal of the fish bone and liver abscess. CT scan 1 month after discharge showed that the liver abscess had disappeared completely

    Entropy production, viscosity bounds and bumpy black holes

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    The ratio of shear viscosity to entropy density, η/s, is computed in various holographic geometries that break translation invariance (but are isotropic). The shear viscosity does not have a hydrodynamic interpretation in such backgrounds, but does quantify the rate of entropy production due to a strain. Fluctuations of the metric components δg xy are massive about these backgrounds, leading to η/s < 1/(4π) at all finite temperatures (even in Einstein gravity). As the temperature is taken to zero, different behaviors are possible. If translation symmetry breaking is irrelevant in the far IR, then η/s tends to a constant at T = 0. This constant can be parametrically small. If the translation symmetry is broken in the far IR (which nonetheless develops emergent scale invariance), then η/s ∼ T 2 ν as T → 0, with ν ≤ 1 in all cases we have considered. While these results violate simple bounds on η/s, we note that they are consistent with a possible bound on the rate of entropy production due to strain

    Encruzilhadas e perspectivas da (s) esquerda (s) no século XXI

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    SANTOS, Boaventura de Souza. Esquerdas do mundo, uni-vos!. 1 ed. Sa?o Paulo: Boitempo,2018. 85 p

    Thermal conductivity at a disordered quantum critical point

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    © 2016, The Author(s). Abstract: Strongly disordered and strongly interacting quantum critical points are difficult to access with conventional field theoretic methods. They are, however, both experimentally important and theoretically interesting. In particular, they are expected to realize universal incoherent transport. Such disordered quantum critical theories have recently been constructed holographically by deforming a CFT by marginally relevant disorder. In this paper we find additional disordered fixed points via relevant disordered deformations of a holographic CFT. Using recently developed methods in holographic transport, we characterize the thermal conductivity in both sets of theories in 1+1 dimensions. The thermal conductivity is found to tend to a constant at low temperatures in one class of fixed points, and to scale as T0.3 in the other. Furthermore, in all cases the thermal conductivity exhibits discrete scale invariance, with logarithmic in temperature oscillations superimposed on the low temperature scaling behavior. At no point do we use the replica trick
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