198 research outputs found

    Iconografía sexuada: reflexionando sobre el binarismo de género en interpretaciones arqueológicas

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    Realizamos este trabajo usando como base el informe entregado como parte de una instancia de evaluación para la cátedra de Arqueología Argentina, materia de 5to año de la Lic. en Antropología de la UNLP, carrera que ambos nos encontramos cursando. La particularidad que tiene esta carrera en nuestra Universidad es que forma parte de la Facultad de Ciencias Naturales y Museo (FCNyM). Es por eso que, buscando un enfoque lo más holístico posible de los seres humanos, el plan de estudios abarca tres grandes orientaciones: Antropología socio-cultural, Antropología biológica y Arqueología. A lo largo de nuestra experiencia transitando ese espacio, pudimos notar que estas tres orientaciones son presentadas de forma segregada y muy poco interrelacionadas. Una de nuestras motivaciones es la de continuar aportando al ejercicio de cruzar los limites que las dividen, en este caso los ámbitos de la teoría social y la arqueología. A grandes rasgos entendemos la Arqueología como el estudio de las sociedades del pasado a partir de sus restos materiales. Basados en el hecho de que las personas a las que estamos estudiando pertenecen al tiempo pretérito, los objetos que dejaron atrás son la única forma que tenemos para conocerlas. Es por eso que cualquier explicación dada a estos restos está altamente condicionada por las interpretaciones que nosotros les damos y nunca sabremos realmente con certeza cuál era la intencionalidad de quienes crearon los objetos. Como profesionales en formación, nos proponemos abordar de manera crítica la forma de proceder científico, enmarcado dentro de nuestra disciplina particular, basándonos en lineamientos de la arqueología feminista e interpretativa. Asimismo creemos importante conocer lo que otras disciplinas y ciencias tienen para aportar a la temática.Eje 6. Comunicación: discursos, poder y géneros.Facultad de Trabajo Socia

    Comparing risk-weighted assets: the importance of supervisory validation processes

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    Artículo de revistaThis article analyses the problems of using the risk-weighted assets (RWA) density ratio – defined as the ratio of RWA to total assets – to make comparisons across banks, as is frequently done by banks themselves and analysts. An international comparison is made of 16 European banks, based on public information, from which it is concluded that a significant part of the differences in RWA density are a consequence of differences in the type of business involved. In particular, the greater the weight of credit risk in a bank’s balance sheet the higher will be its RWA density. We propose alternative RWA density ratios and illustrate them with the results for Spanish banks using confidential data. We show that public information cannot be sufficiently detailed to enable differences across banks arising from their risk profiles to be distinguished from others attributable, for example, to different interpretations of solvency rules by banks or supervisors. Therefore, the supervisory review process and the progress in its inter-jurisdictional harmonisation are especially important. The paper concludes with a review of the process used by the Banco de España for the supervisory validation of Internal Ratings Based (IRB) approaches for credit risk

    Discussing the Concepts of Cluster and Industrial District.

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    The significance and popularity of the cluster and industrial district concepts claim for a deeper reflection. The analysis of one of the European Commission's (EC) policy documents shows inconsistencies that do not impede the formulation of normative statements. That way we answer the question of why and how cluster ideas have substituted industrial district principles and the consequences derived from that phenomenon

    Simulating Tritrophic Interactions by Means of P Systems

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    P systems provide a high level computational modelling framework that combines the structural and dynamical aspects of ecosystems in a compressive and relevant way. The inherent randomness and uncertainty in biological systems is captured by using probabilistic strategies. The design of efficient simulation algorithms in order to reproduce the behavior of these computational models over conventional computers is fundamental for the validation and virtual experimentation processes. In this paper, we describe the modelling framework and two different simulation algorithms. As a case study, a P system based model of an ideal ecosystem with three trophic levels is designed and simulated by both simulation algorithms, providing comparisons of efficiency between them

    Comparing simulation algorithms for multienvironment probabilistic P systems over a standard virtual ecosystem

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    Membrane Computing has recently proved to be a suitable framework for addressing the modelling of dynamical biological systems in general, and ecosystems in particular. Due to the inherent randomness and uncertainty in biological systems, when designing a model the relevant tasks to be addressed are the validation and virtual experimentation processes, rather than the formal verification. It is therefore crucial to rely on software implementations of efficient simulation algorithms. This paper presents a simple (but realistic enough) ecosystem where a carnivore and several herbivorous species interact. The model of this ecosystem has been used to compare experimentally the performance of two different simulation algorithms.Ministerio de Ciencia e Innovación TIN2009–13192Junta de Andalucía P08-TIC-0420

    Managing the participation of people with disabilities in large-scale r&d technology projects: best practices from AEGIS and CLOUD4ALL

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    People with disabilities are frequently mentioned as beneficiaries of participatory approaches during the research and development of technology since their special needs and preferences can be unveiled and channeled through participatory techniques. However, there are some challenges affecting their involvement and sustained participation in large-scale R&D technology projects. This paper discusses some strategies to overcome these potential barriers, based on the experience of the authors in two large-scale technology projects funded by the European Commission: AEGIS and CLOUD4all.Peer Reviewe

    Effect of the chromatic assimilation (Bezold effect) in the vision of the content on a dinner plate

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    The color perception on a dinner plate depends on the color and distribution of the surrounding content. It is unthinkable to eat a typical Spanish dish, paella blue, or drink red or green milk. The color is also an indicator of expiration. The color of food intake predisposes us, which is known as the phrase “eat with our eyes” while we see an appetizing menu. Besides, the importance of the composition of a dish, distribution and presentation is critical in their perception. We are working long time in the lab of The Engineering Design Faculty on the perception of the distribution of objects, especially on the Bezold effect. It is interesting to apply the results of the perception that people have of the distribution of food, anchovies, olives, potatoes, etc. on a plate. To carry out this work we have used people who show the human reaction to the various situations described. Most relevant results, we note that the background (e.g. dish, decoration) with a horizontal grating, the effect of chromatic assimilation is greater than the vertical orientation, regardless of the orientation of the sequence.Tortajada Montañana, I.; Montalvá Colomer, J.; Aguilar Rico, M. (2011). Effect of the chromatic assimilation (Bezold effect) in the vision of the content on a dinner plate. Journal of Life Sciences. 5(9):772-775. doi:10.17265/1934-7391/2011.09.015S7727755

    A P System Based Model of an Ecosystem of Some Scavenger Birds

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    The Bearded Vulture (Gypaetus Barbatus) is an endangered species in Eu- rope that feeds almost exclusively on bone remains provided by wild and domestic ungu- lates. In [1], we presented a P system in order to study the evolution of these species in the Pyrenees (NE Spain). Here, we present a new model that overcomes some limitations of the previous work incorporating other scavenger species (predatory) and additional prey species that provide food for the scavenger intraguild and interact with the Bearded Vulture in the ecosystem. After the validation, the new model can be a useful tool for the study of the evolution and management of the ecosystem. P systems provide a high level computational modelling framework which integrates the structural and dynamical aspects of ecosystems in a compressive and relevant way. The inherent randomness and uncertainty in ecosystems is captured by using probabilistic strategies.Ministerio de Educación y Ciencia TIN2006-13425Junta de Andalucía P08–TIC-0420

    MeCoSim: A general purpose software tool for simulating biological phenomena by means of P Systems

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    In recent years, the increasing importance of the computational systems biology is leading to an impressive growth of the knowledge of several real-life phenomena. In this framework, membrane computing is an emergent branch within natural computing that has been succesfully used to model biological phenomena. The study of these phenomena usually requires the execution of virtual experiments using mechanisms of simulation, implying the development of ad-hoc tools to simulate. However, the advance of the research is demanding general solutions to avoid the necessity of custom software developments for each matter of study, when there are some common problems to resolve. MeCoSim (Membrane Computing Simulator) is a first step in this direction providing the users a customizable application to generate custom simulators based on membrane computing by simply writing a configuration file.Ministerio de Educación y Ciencia TIN2009–13192Junta de Andalucía P08–TIC-0420
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