943 resultados para Juan II, Rey de Castilla, 1406-1454.


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Luego del éxito de la puesta de El chico de la última fila del madrileño Juan Mayorga en Tucumán (temporadas 2007 - 2008), el director Leonardo Goloboff renueva y redobla la apuesta, presentando en los escenarios locales Hamelin, del mismo autor. El texto nos interpela como seres humanos y como espectadores, habla del abuso y la perversión y habla también del teatro, entre otras cosas. Otra vez la dupla Mayorga-Goloboff nos invita a un juego. Un juego de sensaciones, de sentimientos, de miradas. Un juego profundamente teatral y humano. Juan Mayorga ha vuelto a Tucumán de la mano de Goloboff, Tríbulo y Delgado. Le damos la bienvenida y nos proponemos desde este trabajo invitar a nuestros lectores/escuchas también a jugar/pensar en esas cosas que como sociedad nos incomodan pero frente a las cuales no podemos dar vuelta la cara. Esas cosas de las que el teatro sabe hablar tan bien. ¿Vamos? Vale la pena

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Esta obra es una edición de cuestionarios de repaso y de autoevaluación para su utilización en la asignatura de Laboreo II y Explosivos, impartida en la Escuela Técnica Superior de Ingenieros de Minas de Madrid.

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Software testing is a key aspect of software reliability and quality assurance in a context where software development constantly has to overcome mammoth challenges in a continuously changing environment. One of the characteristics of software testing is that it has a large intellectual capital component and can thus benefit from the use of the experience gained from past projects. Software testing can, then, potentially benefit from solutions provided by the knowledge management discipline. There are in fact a number of proposals concerning effective knowledge management related to several software engineering processes. Objective: We defend the use of a lesson learned system for software testing. The reason is that such a system is an effective knowledge management resource enabling testers and managers to take advantage of the experience locked away in the brains of the testers. To do this, the experience has to be gathered, disseminated and reused. Method: After analyzing the proposals for managing software testing experience, significant weaknesses have been detected in the current systems of this type. The architectural model proposed here for lesson learned systems is designed to try to avoid these weaknesses. This model (i) defines the structure of the software testing lessons learned; (ii) sets up procedures for lesson learned management; and (iii) supports the design of software tools to manage the lessons learned. Results: A different approach, based on the management of the lessons learned that software testing engineers gather from everyday experience, with two basic goals: usefulness and applicability. Conclusion: The architectural model proposed here lays the groundwork to overcome the obstacles to sharing and reusing experience gained in the software testing and test management. As such, it provides guidance for developing software testing lesson learned systems.

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Este texto apunta algunos aspectos de la labor crítica desarrollada por Juan Daniel Fullaondo como director de Nueva Forma entre 1966 y 1975. En unos años de crisis disciplinar, esta publicación emprendió una revisión del legado arquitectónico español. Ante un panorama editorial aséptico, los textos críticos de Fullaondo aspiraron a mediar en el decurso histórico con el firme convencimiento de que la crítica, como tal, cumple con una función tan real como el de las propias obras construidas. ABSTRACT: This paper studies some aspects of the critical work that Juan Daniel Fullaondo developed at the Spanish magazine Nueva Forma (New Form), which directed from 1966 to 1975. In these critical years, this monthly publication, which was specialized in architecture and art, undertook a revision of the Spanish Architectural legacy. Despite the aseptic editorial panorama, Fullaondo’s texts firmly aspired to mediate in the collective cultural knowledge. His defense on criticism as a specialized discipline made him vindicate that it could have a role in History as real as masterly projects.

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The end-notched flexure (ENF) test calculates the value of mode II fracture energy in adhesive bonding between the substrates of same nature. Traditional methods of calculating fracture energy in the ENF test are not suitable in cases where the thickness of the adhesive is non-negligible compared with adherent thicknesses. To address this issue, a specific methodology for calculating mode II fracture energy has been proposed in this paper. To illustrate the applicability of the proposed method, the fracture energy was calculated by the ENF test for adhesive bonds between aluminium and a composite material, which considered two different types of adhesive (epoxy and polyurethane) and various surface treatments. The proposed calculation model provides higher values of fracture energy than those obtained from the simplified models that consider the adhesive thickness to be zero, supporting the conclusion that the calculation of mode II fracture energy for adhesives with non-negligible thickness relative to their adherents should be based on mathematical models, such as the method proposed in this paper, that incorporate the influence of this thickness.

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Uno de los aspectos que hace más interesante la teoría de juegos, al margen de los resutlados, en algunos casos sorprendentes, es precisamente la posiblidad de intervenir en ámbiros de las ciencias sociales donde un cierto componenete de aleatoriedad es inherente a los mismos, y en los cuales las varibales que intervienen tienen relación con el comportamiento humano, tanto individual como de grupo. De este modo, el desarrollo d ela teoría de juegos llevó al planteamiento de diversos dilemas, generalmente centrados entre la tensión entre conflicto, riesgo o cooperación, que por su aplicación a situaciones muy diversas constituyen una parte significativa de dicha teoría. Entre las más conocidas están: el, ya tratado, dilema del prisionero, el juego del gallina o su versión en términos de la evolución de las especies, conocida com el dilema de halcones y palomas. Dilemas que muestran de alguna manera, la dificultad y al mismo tiempo la posiblidad de estudiar, y en algunos casos determinar, las consecuencias del comportamiento humano, espeicalmente cuando estas consecuencias dependen de la combinación de las estrategias utilizadas por los distintos implicados.

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II. Urtearen domeca guztiñetaraco berbaldiac

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In tunnel construction, as in every engineering work, it is usual the decision making, with incomplete data. Nevertheless, consciously or not, the builder weighs the risks (even if this is done subjectively) so that he can offer a cost. The objective of this paper is to recall the existence of a methodology to treat the uncertainties in the data so that it is possible to see their effect on the output of the computational model used and then to estimate the failure probability or the safety margin of a structure. In this scheme it is possible to include the subjective knowledge on the statistical properties of the random variables and, using a numerical model consistent with the degree of complexity appropiate to the problem at hand, to make rationally based decisions. As will be shown with the method it is possible to quantify the relative importance of the random variables and, in addition, it can be used, under certain conditions, to solve the inverse problem. It is then a method very well suited both to the project and to the control phases of tunnel construction.

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The one-dimensional self-similar motion of an initially cold, half-space plasma of electron density n,produced by the (anomalous) absorption of a laser pulse of irradiation

density nc, is considered; the analysis, which allows for electron heat conduction and ion-electron energy exchange, involves three dimensionless numbers: e = nc/n0 assumed small, Z, (ion charge number), and a parameter adevelops, separating a thermal wave (where convection is negligible) moving into the undisturbed plasma, from a much thinner isothermal flow expanding into the vacuum. For ldensity is so small that the plasma becomes collisionless. The analysis is also invalid for a too small. Using results previously found for a>€~4'3, a qualitative discussion of how plasma behavior changes with a, is given.

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An electrodynamic bare-tether mission to Jupiter,following the capture of a spacecraft (SC) into an equatorial highly elliptical orbit with perijove at about 1.3 times the Jovian radius, is discussed. Repeated applications of the propellantless Lorentz drag on a spinning tether, at the perijove vicinity, can progressively lower the apojove at constant perijove, for a tour of Galilean moons. Electrical energy is generated and stored as the SC moves from an orbit at 1 : 1 resonance with a moon, down to resonance with the next moon; switching tether current off, stored power is then used as the SC makes a number of flybys of each moon. Radiation dose is calculated throughout the mission,during capture, flybys and moves between moons. The tour mission is limited by both power needs and accumulated dose. The three-stage apojove lowering down to Ganymede, Io, and Europa resonances would total less than 14 weeks, while 4 Ganymede, 20 Europa, and 16 Io flybys would add up to 18 weeks, with the entire mission taking just over seven months and the accumulated radiation dose keeping under 3 Mrad (Si) at 10-mm Al shield thickness.