Reconstrucción ideal de un artesonado de la iglesia de Sta. Mª de la Cuesta de Durón a partir de los elementos encontrados durante su restauración

El lamentable estado del templo hizo que Luis de Villanueva y Susana Mora redactaran un Proyecto de Restauración, cuya primera fase era la Restauración de cubiertas. Éstas se desmontaron cuidadosamente, apareciendo en la nave sur una viga cambiada de posición de labra supuestamente mudéjar, lo que hizo exagerar las precauciones. Pudimos así observar otra ménsula de madera labrada que servía de apoyo a elementos pétreos de la cabecera. En la nave lateral norte se encontraron durmientes, varios tirantes, y rebajes equidistantes, que podrían corresponder a estribos. En la nave central, formando parte de las quijeras, estaban integrados elementos con sencillas decoraciones azuladas, que podrían corresponder a restos de los citados estribos de la nave lateral. Las hipótesis se comprobaron, y con el apoyo de textos especializados, se formuló una propuesta de techumbre que podría acercarnos a las construcciones de esta zona del Señorío de Mendoza entre los siglos XV y XVI.

IDRA (IDeal Resource Allocation): Computing ideal speedups in parallel logic programming

We present a technique to estimate accurate speedups for parallel logic programs with relative independence from characteristics of a given implementation or underlying parallel hardware. The proposed technique is based on gathering accurate data describing one execution at run-time, which is fed to a simulator. Alternative schedulings are then simulated and estimates computed for the corresponding speedups. A tool implementing the aforementioned techniques is presented, and its predictions are compared to the performance of real systems, showing good correlation.

IDRA (IDeal Resource Allocation): A tool for computing ideal speedups

Performance studies of actual parallel systems usually tend to concéntrate on the effectiveness of a given implementation. This is often done in the absolute, without quantitave reference to the potential parallelism contained in the programs from the point of view of the execution paradigm. We feel that studying the parallelism inherent to the programs is interesting, as it gives information about the best possible behavior of any implementation and thus allows contrasting the results obtained. We propose a method for obtaining ideal speedups for programs through a combination of sequential or parallel execution and simulation, and the algorithms that allow implementing the method. Our approach is novel and, we argüe, more accurate than previously proposed methods, in that a crucial part of the data - the execution times of tasks - is obtained from actual executions, while speedup is computed by simulation. This allows obtaining speedup (and other) data under controlled and ideal assumptions regarding issues such as number of processor, scheduling algorithm and overheads, etc. The results obtained can be used for example to evalúate the ideal parallelism that a program contains for a given model of execution and to compare such "perfect" parallelism to that obtained by a given implementation of that model. We also present a tool, IDRA, which implements the proposed method, and results obtained with IDRA for benchmark programs, which are then compared with those obtained in actual executions on real parallel systems.

Benchmarking of calculation schemes in Apollo2 and COBAYA3 for VVER lattices

This paper presents solutions of the NURISP VVER lattice benchmark using APOLLO2, TRIPOLI4 and COBAYA3 pin-by-pin. The main objective is to validate MOC based calculation schemes for pin-by-pin cross-section generation with APOLLO2 against TRIPOLI4 reference results. A specific objective is to test the APOLLO2 generated cross-sections and interface discontinuity factors in COBAYA3 pin-by-pin calculations with unstructured mesh. The VVER-1000 core consists of large hexagonal assemblies with 2mm inter-assembly water gaps which require the use of unstructured meshes in the pin-by-pin core simulators. The considered 2D benchmark problems include 19-pin clusters, fuel assemblies and 7-assembly clusters. APOLLO2 calculation schemes with the step characteristic method (MOC) and the higher-order Linear Surface MOC have been tested. The comparison of APOLLO2 vs.TRIPOLI4 results shows a very close agreement. The 3D lattice solver in COBAYA3 uses transport corrected multi-group diffusion approximation with interface discontinuity factors of GET or Black Box Homogenization type. The COBAYA3 pin-by-pin results in 2, 4 and 8 energy groups are close to the reference solutions when using side-dependent interface discontinuity factors.

Ficciones urbanas vernáculas diseñadas según principios artísticos. Permanencia y poder simbólico del ideal urbano tradicional

The theoretical contributions of John Ruskin, the analysis and proposals in Camillo Sitte?s City Planning According to Artistic Principles or the urban environment defense by Gustavo Giovannoni involved important restrictions on the destruction of this heritage and on the progressive Haussmanization of many European cities. But this interest on the endangered traditional city also caused the birth of a wide range of urban proposals which aimed at recreating or reproducing an ideal model of it. Erected under different circumstances and with multiple purposes, they did not only define new urban developments, but also succeeded in the context of the mentioned international fairs and exhibitions, appearing a whole family of them in diverse countries.

Multi-argument fuzzy measures on lattices of fuzzy sets

In this paper, we axiomatically introduce fuzzy multi-measures on bounded lattices. In particular, we make a distinction between four different types of fuzzy set multi-measures on a universe X, considering both the usual or inverse real number ordering of this lattice and increasing or decreasing monotonicity with respect to the number of arguments. We provide results from which we can derive families of measures that hold for the applicable conditions in each case.

Observação Arquitectónica de Sta Mª da Feira: Argumentos para um futuro Ideal e Real

Análisis arquitectónico de una ciudad pequeña en el norte de Portugal, a través del estudio de cuatro espacios delimitados. Se parte de una visión general y actual de la sociedad y cultura portuguesas, en aspectos tales como el envejecimiento de la población, el uso extendido del coche, u otros, así como de las particularidades del medio físico de la ciudad ? la presencia de zonas verdes sostenibles y no aprovechadas, la herencia agrícola local ? para, enseguida, contemplar las soluciones existentes para esos mismos problemas. Tras este análisis general, y teniendo presente las necesidades actuales de carácter sostenible, se llega a una síntesis de propuestas arquitectónicas especificas para los cuatro espacios urbanos elegidos.

Systematic derivation of partition functions for ligand binding to two-dimensional lattices

The Ising problem consists in finding the analytical solution of the partition function of a lattice once the interaction geometry among its elements is specified. No general analytical solution is available for this problem, except for the one-dimensional case. Using site-specific thermodynamics, it is shown that the partition function for ligand binding to a two-dimensional lattice can be obtained from those of one-dimensional lattices with known solution. The complexity of the lattice is reduced recursively by application of a contact transformation that involves a relatively small number of steps. The transformation implemented in a computer code solves the partition function of the lattice by operating on the connectivity matrix of the graph associated with it. This provides a powerful new approach to the Ising problem, and enables a systematic analysis of two-dimensional lattices that model many biologically relevant phenomena. Application of this approach to finite two-dimensional lattices with positive cooperativity indicates that the binding capacity per site diverges as Na (N = number of sites in the lattice) and experiences a phase-transition-like discontinuity in the thermodynamic limit N → ∞. The zeroes of the partition function tend to distribute on a slightly distorted unit circle in complex plane and approach the positive real axis already for a 5×5 square lattice. When the lattice has negative cooperativity, its properties mimic those of a system composed of two classes of independent sites with the apparent population of low-affinity binding sites increasing with the size of the lattice, thereby accounting for a phenomenon encountered in many ligand-receptor interactions.

O magistrado e o ideal de justiça / Reis Friede. --

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Arquitetura da estrutura jurídico-funcional da Advocacia-Geral da União após dezessete anos de existência : modelo ideal / Jair José Perin. --

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