Methodology for characterising microlayers in historical plasterwork

The study of (micro)layer structure in walls is a fundamental tool for expanding our knowledge of historical buildings and developing suitable proposals for intervention and restoration. In materials such as plasterwork, the (micro)layer sequence can be confusing, resulting in the need for a more detailed analysis in order to accurately determine the materials and interventions carried out on a given decorative element in the past. This work presents a methodological proposal based on optical microscopy, XRD, micro-XRD, SEM-EDAX, FTIR, and 14C dating to accurately identify the structure and composition of the different types of microlayers comprising the plasterwork. The resulting data are of great use in decision-making for restoration and can be compared with historiographic information in order to confirm hypotheses or clarify gaps in chronological adscription

A new species of Gaylordia Paula Couto (Mammalia, Metatheria) from Itaboraí, Brazil

We describe a new metatherian of the genus Gaylordia Paula Couto, from the early Eocene Itaboraí Basin, Brazil. This new species (estimated body mass ~60-90.9 g) is based on lower and upper dentition elements and is characterized by a more plesiomorphic dental morphology with respect to G. macrocynodonta Paula Couto (with a larger body mass, estimated in ~74-103 g for large individuals or males). The species G. doelloi Marshall, represented by small individuals or females, is regarded a junior synonym of G. macrocynodonta. A phylogenetic analysis as well as details of the occlusal surface of its upper and lower molars suggests that Gaylordia is closely related to the Pucadelphyidae, a non-marsupial “ameridelphian” group previously recorded at the early Paleocene locality of Tiupampa, Bolivia.Descreve-se um novo marsupial basal do gênero Gaylordia Paula Couto, do Eoceno inicial da bacia de Itaboraí, Brasil. Esta nova espécie (massa corporal estimada ~60-90.9 g) está baseada na dentição superior e inferior, e é caracterizada por uma morfologia dentária mais plesiomórfi ca em relação a G. macrocynodonta Paula Couto (cuja maior massa corporal é estimada em ~74-103 g para grandes indivíduos ou machos). A espécie G. doelloi Marshall, representada por indíviduos pequenos ou fêmeas, é considerada um sinônimo junior de G. macrocynodonta. Uma análise fi logenética, bem como detalhes da superfície oclusal de seus molares superiores e inferiores sugerem uma relação próxima de Gaylordia aos Pucadelphyidae, um grupo de ameridélfi os não marsupiais previamente registrados no Paleoceno inicial da localidade de Tiupampa, Bolivia.Facultad de Ciencias Naturales y Muse

Monomial discrete valuations in k[[X]]

Let v be a rank m discrete valuation of k[[X1,...,Xn]] with dimension n-m. We prove that there exists an inmediate extension L of K where the valuation is monomial. Therefore we compute explicitly the residue field of the valuation

HANNA: a tool for hardware prototyping and benchmarking of ANNs. Poster

For some applications, designers must implement an ANN model over different platforms to meet performance, cost or power constrains, a process still more painful when several hardware implementations have to be evaluated. Continuous advances in VLSI technologies, computer architecture and software development make it difficult to find the adequate implementation platform. HANNA (Hardware ANN Architect), is a tool designed to automate the generation of hardware prototypes of MLP-like neural networks over FPGA devices. Coupled with traditional Matlab/Simulink environments the model can be synthesized, downloaded to the FPGA and co-simulated with the software version to trade off area, speed and precision requirements.This research is being funded by Ministerio de Ciencia y Tecnología TIC 2003-09557-C02-02

Reconfiguring global value chains in a post-Brexit world: A technological interpretation

[EN]With the uncertainties that it may entail in terms of possible trade barriers between the UK and the EU, increased exchange rate risk, restrictions on the establishment of professionals and possible changes in regulations on the environment, tax and protection of competition, Brexit could exacerbate the process of re-localisation of operations that commenced to a small extent some years ago. This process was based on technological innovations under the heading of Industry 4.0, and more recently strengthened by the supply problems that came to light during the handling of the Covid-19 pandemic. Although the social, political and institutional context matters a lot, we believe that technology is going to be a conditioning element in the ability of businesses to reconfigure the value chains in which they are involved. We propose a typology based on this technological perspective that could have considerable potential impact in defining business strategies in numerous industries and in orienting industrial policy in countries striving to acquire a more central role or to prevent themselves from being cut out of the global value chain.The authors acknowledge research funding from University of the Basque Country (UPV/EHU) : Grant GIU19/078

Conceptual and symbolic changes in rural societies: the ethnographic letter as a regulator

The livelihoods of traditional rural societies are in an open process of disappearing. Under this premise we started to work and propose a research project on rural landscape architecture, environmental awareness and issues of administrative regulation. This work would serve us to study, learn, document and investigate in depth from an ethnological point of view, a rural culture represented by some populations in the north of the region of La Ramajería; region that is located in the northwest of the province of Salamanca . We propose in our research ethnological a sample letter to serve as a reference when analyzing the administrative documentation of these goods, without it being exclusive of other possibilities, but willing at all times and as a priority objective, to promote discussion of different methods or possibilities that may develop in this area.Los modos de vida de las sociedades rurales tradicionales se encuentran en un franco proceso de desaparición. Bajo esta premisa empezamos a trabajar y planteamos un proyecto de investigación sobre la arquitectura del paisaje rural, el conocimiento del medio y la problemática de su regulación administrativa. Este trabajo nos serviría para estudiar, conocer, documentar e investigar en profundidad, desde un punto de vista etnológico, una cultura rural representada por algunas poblaciones del Norte de la comarca de La Ramajería; región que se localiza en el Noroeste de la provincia de Salamanca. Proponemos en nuestra investigación un ejemplo de carta etnológica que sirva como referencia a la hora del análisis de la catalogación administrativa de estos bienes, sin que ello sea excluyente de otras posibilidades, pero queriendo en todo momento y como finalidad prioritaria, fomentar la discusión sobre los distintos métodos o posibilidades que se pueden desarrollar en este tema

A new geometrical method for 3D evaluation of non-rigid registration methods for radiotherapy in prostate cancer

Three-dimensional conformal radiotherapy aims at delivering a high dose of radiation to the tumour, while sparing the surrounding normal tissue to a maximum extent. Image registration is an essential tool for monitoring radiation therapies, since allows morphological comparisons in presence of anatomic variations. The evaluation of non-rigid registration methods is very complicated owe to the absence of a known pointwise correspondence. The use of analysis of variations in target volume delineations has been proposed in the past for the evaluation of non-rigid registration methods. Delineation of the target volume is usually accomplished by outlining the contour of the volume in each separate tomographic slice. In the studies of reference, the 3D surface is rendered from the contours by means of a Delauney triangulation. This geometrical method only works correctly for convex structures. However the volumes involved on pelvic anatomy, such as bladder or prostate including the seminal vesicles, have relevant concavities that introduce a huge error in the evaluation. A new geometrical method for the evaluation of convex-concave target volumes delineation is proposed