The anonymous models: The hidden authorship of a group of industrial artifacts of Altos Hornos de Vizcaya

Este artículo se detiene en varios momentos clave de la biografía de unos artefactos industriales: los modelos para fundición de Altos Hornos de Vizcaya, empresa emblemática de la industrialización del País Vasco. Tras una fase de desecho y abandono cuando cierra la compañía en 1996, los modelos son rescatados y pasan a ser protagonistas de una exposición artística que los convierte en objetos dignos de admiración estética y en candidatos a formar parte del patrimonio cultural local. Sin embargo, no lo consiguen y, en un último giro, encuentran su sitio como objetos decorativos en el mercado de antigüedades. Es decir, como mercancías. Una deriva que está marcada por un elemento esencial: la aparente ausencia de autoría que permite, en todas sus fases, la apropiación e invisibilización del trabajo procedente de las comunidades obrerasThis paper focuses on three key episodes in the biography of a certain type of industrial artifacts: the casting models that belonged to Altos Hornos de Vizcaya, the flagship industrial company in the Basque Country during the past century. After being discarded as rubbish when the company closed in 1996, the models are rescued and, ultimately, exhibited in an art gallery. This transforms the models into aesthetically pleasing objects and reinforces their candidacy to become part of the local protected cultural heritage. As they failed to do so, in the end, they find their way into the antiques market. A trajectory that is conditioned by a central issue: the apparent lack of authorship that allows the appropiation and the invisibilization of the work carried out by working class communitie

Estudio y diseño de prototipo para captación de energía de las olas del mar en el espigón de Vilanova i la Geltrú

[CASTELLÀ] En este trabajo de final de grado hemos realizado un prototipo mecánico capaz de captar la energía que se pierde de las olas del mar (energía undimotriz) en el espigón de Vilanova i la Geltrú. Estudiando y analizando los mecanismos y prototipos de las empresas actuales en el mercado, obtenemos unas ideas para nuestro dispositivo. A parte hemos analizado el comportamiento del oleaje en nuestro punto de estudio, que es en el espigón de la playa del faro (Vilanova i la Geltrú) y teniendo en cuenta el oleaje y las mareas, hemos diseñado un prototipo más idóneo para esta ubicación. Nuestra idea final trataría de poner varios dispositivos a lo largo del espigón para así de esta manera poder captar la máxima energía en esta zona.[ANGLÈS] In this final degree project we have made a mechanical prototype capable of capturing the energy that is lost from the waves of the sea (wave energy) in the breakwater of Vilanova i la Geltrú. By studying and analysing the mechanisms and prototypes of current companies in the market, we obtain some ideas for our device. We have also analysed the behaviour of the waves at our point of study, which is at the pier of the beach of the lighthouse (Vilanova i la Geltrú) and taking into account the waves and tides, we have designed a more suitable prototype for this location. Our final idea would try to put several devices along the jetty in order to capture the maximum energy in this area

De Passivhaus (metodología integrada de diseño de inmuebles de bajo consumo energético) a los edificios de consumo de energía casi nulo (EECN)

Dentro de tres años diseñaremos, construiremos y podremos vivir en edificios completamente alejados del estándar actual, los denominados Edificios de Consumo de Energía Casi Nula, un término difícilmente cuantificable al no disponer de una definición oficial en España, sólo 15 países de la Unión Europea disponen de ella, y al que nos referiremos como: “edificio con un mejor rendimiento energético que el establecido para los edificios estándar de los códigos de construcción nacionales actuales” procedimientos naturales; el desarrollo de materiales de características avanzadas, como los materiales de cambio de fase en las envolventes inteligentes; la gestión programada de los equipos de un edificio para la optimización de los consumos sin mermas en la calidad ambiental

Problemas de control en procesos de eutrofización

El aumento de los niveles de nitrógeno y fósforo (nutrientes principales para determinadas algas) en grandes masas de agua debido a la acción contaminante del hombre, puede traer consigo una disminución de la calidad del agua (procesos de eutrofización). En este trabajo estudiamos un m´etodo de control de esta clase de procesos, basado en el uso de biorreactores (tanques en donde se desarrollarán una serie de procesos que reducirán los niveles de nitrógeno y/o fósforo del agua por debajo de unos umbrales máximos). Matemáticamente estos métodos de control se pueden formular como problemas de control óptimo con restricciones sobre el estado en donde las ecuaciones de estado son un tipo de sistema de ecuaciones cuasilineales

Memoria histórica o recuperación:¿qué podemos hacer ante un libro consumido por el fuego?

El Palacio Arzobispal de Valencia alberga parte de un libro litúrgico de gran formato que tras sufrir los estragos del fuego durante la guerra civil española, se ha convertido en testimonio bibliográfico único de un capítulo de la Historia de esta institución valenciana. Su estado de conservación es lamentable: consiste en un bloque compacto de pergamino deforme cuyo interior es totalmente inaccesible. Tras iniciar la investigación con un estudio interdisciplinar previo, con esta comunicación se pretenden dar a conocer las distintas posibilidades de intervención y abrir a debate los criterios más oportunos para su conservación y/o recuperación

MSpin‐JCoupling. A modular program for prediction of scalar couplings and fast implementation of Karplus relationships

This is the peer reviewed version of the following article:Navarro-Vázquez, A., Santamaría-Fernández, R., & Sardina, F. (2018). MSpin-JCoupling. A modular program for prediction of scalar couplings and fast implementation of Karplus relationships. Magnetic Resonance In Chemistry, 56(6), 505-512, which has been published in final form at https://doi.org/10.1002/mrc.4667. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsMSpin‐JCoupling is a modular program for the prediction of scalar couplings using a large variety of Karplus relationships. The program was specially designed for small molecule analysis and can be run in graphical or command‐line mode. The architecture of the program is highly modular, and new equations can be rapidly implemented, through a complete C++ programming interface, and deployed as run‐time loadable pluginsMinisterio de Ciencia e Innovación. Grant Number: PET2008‐074 Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia. Grant Number: Consellería de Educación 2009/071 Spanish Ministerio de Ciencia e Innovación. Grant Number: PET2008‐074 Xunta de Galicia for a Parga Pondal. Grant Number: Consellería de Educación 2009/071S

Mathematical analysis and numerical resolution of a heat transfer problem arising in water recirculation

This work is devoted to the analysis and resolution of a well-posed mathematical model for several processes involved in the artificial circulation of water in a large waterbody. This novel formulation couples the convective heat transfer equation with the modified Navier–Stokes system following a Smagorinsky turbulence model, completed with a suitable set of mixed, nonhomogeneous boundary conditions of diffusive, convective and radiative type. We prove several theoretical results related to existence of solution, and propose a full algorithm for its computation, illustrated with some realistic numerical examples.Ministerio de Economía y Competitividad | Ref. MTM2015-65570-PXunta de Galicia | Ref. ED431D 2017/1

Controlling eutrophication by means of water recirculation: An optimal control perspective

In this work, the artificial recirculation of water is presented and analyzed, from the perspective of the optimal control of partial differential equations, as a tool to prevent eutrophication effects in large waterbodies. A novel formulation of the environmental problem, based on the coupling of nonlinear models for hydrodynamics, water temperature and concentrations of the different species involved in the eutrophication processes, is introduced. After a complete and rigorous analysis of the existence of optimal solutions, a full numerical algorithm for their computation is proposed. Finally, some numerical results for a realistic scenario are shown, in order to prove the efficiency of our approachThe authors would like to thank the anonymous referees for their interesting comments, suggestions and corrections, as they have greatly contributed to improve the quality of the manuscript. The authors were partially supported by Xunta de Galicia, Spain, project ED431C 2019/02, and by the Agencia Estatal de Investigación (AEI) of Spain under grant MTM2016-75140-P, co-financed by the European Community fund FEDERS

On existence and uniqueness of solution for a hydrodynamic problem related to water artificial circulation in a lake

In this work we introduce a well-posed mathematical model for the processes involved in the artificial circulation of water, in order to avoid eutrophication phenomena, for instance, in a lake. This novel and general formulation is based on the modified Navier–Stokes equations following the Smagorinsky model of turbulence, and presenting a suitable nonhomogeneous Dirichlet boundary condition. For the analytical study of the problem, we prove several theoretical results related to existence, uniqueness and smoothness for the solution of this recirculation model.Xunta de Galicia | Ref. ED431C 2018/50Ministerio de Economía y Competitividad | Ref. MTM2015-65570-

Association of body mass index and abdominal adiposity with cognitive function and functional status in the elderly

Purpose: To examine the association between body composition, functional status and cognitive function in the elderly, including potential gender differences. Methods: A total of 145 elderly (Age 81.1±9.3 years; Weight 66.2±14.4 Kg; BMI 27.5±5.5 Kg/m2), were volunteers. Abdominal bioelectrical impedance analysis and waist circumference (WC) was measured using the ViScan (Tanita Corporation). In addition, anthropometric measurements were performed. BMI and waist–hip ratio (WHR) were calculated using classical equations, and sagittal abdominal diameter (SAD) as abdominal adiposity markers. Cognitive function was evaluated through the Mini-Examination Cognitive (MEC) score and functional status was measured using the Barthel Index. The Kendall-Tau and Spearman rank correlation coefficient were used to explore associations between variables. Results/findings: Barthel score was positively associated with weight (Kendall τ = 0.12, P0.05), and inversely with age (Rho = -0.33, P<0.01). WC, WHR and SAD were not significantly associated with Barthel score. No significant gender differences were found between variables. MEC score was positively associated with BMI, SAD and WC (Rho = 0.19; Rho = 0.17, P<0.05; Rho = 0.22, P<0.01, respectively), visceral fat and gluteus perimeter (Kendall τ = 0.17 both, P<0.05), and inversely with age and WHR, not significantly. These associations were strengthened in women. Conclusions: Our results suggest that high BMI and prevent weight loss could be a positive factor for physical functioning level and a protective factor for dementia in the oldest old. In this observational study, visceral fat were associated with decreased risk of developing dementia, but not with functional status. A plausible explanation should be higher BMI and weight might be related with higher lean mass. However, when the analysis was performed, separated by gender, this association was observed only in women for dementia. In view of the fact that loss of lean tissues occurs exponentially with aging, promotion of physical activity programs targeted at weight maintenance would be important.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech