How did the Sovereign debt crisis affect the Euro financial integration? A fractional cointegration approach.

This paper examines financial integration among stock markets in the Eurozone using the prices from each stock index. Monthly time series are constructed for four major stock indices for the period between 1998 and 2016. A fractional cointegrated vector autoregressive model is estimated at an international level. Our results show that there is a perfect and complete Euro financial integration. Considering the possible existence of structural breaks, this paper also examines the fractional cointegration within each regime, showing that Euro financial integration is very robust. However, in the financial and sovereign debt crisis regime, IBEX 35 appears to be the weak link in Euro financial integration, unless Euro financial integration recovers when this period ends

Estudio del problema elastoplástico con deformaciones finitas mediante ecuaciones integrales de contorno y de dominio

En este estudio se aborda el problema de análisis de sólidos metálicos sometidos simultáneamente a no-linealidades materiales y geométricas. El comportamiento plástico elegido está basado en el criterio de plastificación de von Mises con ley de flujo asociada y endurecimiento isótropo, pudiendo ser las deformaciones plásticas finitas. La base del método numérico empleado es el Método de los Elementos de Contorno aunque, al no poderse trasladar todas las integrales que intervienen al contorno, es necesario discretizar también el dominio. Se ha adoptado una formulación material junto con un planteamiento lagrangiano actualizado y se utiliza el algoritmo de retorno generalizado para el cálculo de las deformaciones plásticas. Los gradientes de desplazamiento se obtienen indirectamente mediante derivación polinómica del campo de desplazamientos en el dominio, evitando así las singularidades que se presentan. El método global obtenido es incremental y en cada incremento se necesita un proceso iterativo. Se presenta un ejemplo que muestra la aplicabilidad del método propuesto.This paper presents a formulation of the static problem of metallic solids undergoing both material and geometrical nonlinearities. The plastic constitutive relations are based on the von Mises yield criterion with associated flow rule and isotropic hardening. The plastic strains can be large. The numerical approach is based on the Boundary Element Method but, as it is no possible to take al1 the integrals to the boundary, domain discretization is needed as well as boundary discretization. A material description is adopted together with an updated Lagrangian approach. The generalized midpoint algorithm is used for the computation of the large scale plastic strains. The displacement gradients are obtained, in order to avoid singularities, from polynomial differentiation of the displacement field in each domain element from the nodal values. The resulting method is incremental and iterations are needed in each increment. A example is presented, showing the applicability of the proposed method.Peer Reviewe

Aplicación del M.E.C. en elasticidad tridimensional al análisis de vigas que flectan por contacto en retroceso sin fricción

Trabajo reproducido y difundido en el repositorio idUS con permiso de la Asociación Española de Ingeniería Mecánica (AEIM)Cuando sólidos asimilables a vigas que descansan sobre una cimentación son sometidos a cargas de compresión, éstos se separan en zonas alejadas de la carga (contacto en retroceso ).En este trabajo se presentan resultados obtenidos al aplicar el Método de los Elementos de Contorno en Elasticidad 3D a este tipo de problemas. En el sentido del eje de la viga los resultados que se obtienen están en concordancia con los de un análisis 2D. Sin embargo, en el sentido transversal aparece la tipica evolución tensional asociada a un caso de contacto conforme, por lo que las tensiones de contacto máximas no quedarian recogidas en un análisis 2D. Los resultados que se presentan son de aplicación entre cualesquiera rigideces relativas de la viga y la cimentación, y se ciñen al caso de que no exista fricción entre ambos sólidosWhen beams lying on a foundation are compressed, a gap between the beam and the foundation appears at a certain distance of the zone where the load is applied ( receding contact ) . Results obtained applying Boundary Element Method in Elasticity 3D to this kind of problem are presented in this paper. Along the direction of the axis of the beam the results obtained with the 3D analysis are very similar to those obtained using a 2D analysis. However, a typical contact pressure evolution associated to a conforming case appears along any transversal direction, the maximum contact pressure not being recovered, therefore, in a two dimensional analysis. The results presented assume no friction along the contact surface, covering any relation between the compliances of the beam and the foundation

Estudo comparativo das adaptações fisiológicas agudas durante a exercitação em imersão ao nível do apêndice xifóide e da articulação coxo-femoral

Foi objectivo deste estudo comparar as adaptações fisiológicas agudas de um exercício básico de Hidroginástica realizados a diferentes profundidades (imersão ao nível da articulação coxo-femoral versus ao nível do apêndice xifóide). A amostra foi constituída por 14 sujeito, clinicamente saudáveis e com um nível de actividade física regular. Cada sujeito realizou, um exercício básico de Hidroginástica designado de “Cavalo-Marinho”. Antes e após cada execução de 6 minutos do exercício foi avaliada a percepção subjectiva de esforço (RPE) e a lactatemia ([La-]). Antes, durante e após cada execução foi avaliada a frequência cardíaca máxima durante a exercitação (FC-max), a percentagem de frequência cardíaca máxima teórica atingida durante a exercitação (%FC-max), o máximo consumo de oxigénio durante o período de exercitação (máxVO2) e o dispêndio energético (EE). A RPE, a FC-máx, a %FCmáx, o máxVO2 e o EE foram signifi cativamente superiores durante a exercitação em imersão ao nível da coxo-femoral do que ao nível do apêndice xifóide. A [La-] não apresentou diferenças signifi cativas. Concluindo, as adaptações fi siológicas agudas observadas durante a exercitação em imersão ao nível da articulação coxo-femoral são mais próximas das verifi cadas no meio terrestre do que à profundidade usualmente adoptada nas sessões de Hidroginástica

On the implementation of distributed asynchronous non-linear kernel methods over wireless sensor networks

In this paper, we face the implementation of a non-linear kernel method for regression on a wireless sensor network (WSN) based on MICAz motes. The operating system used is TinyOS 2.1.1. The algorithm estimates the value of some magnitude from the measurements of the motes in a distributed approach where information and computations are performed asynchronously. This proposal includes a research on the potential problems encountered along with the developed solutions. Namely, matrix and floating computations, acknowledgement mechanisms and data loss.Ministerio de Ciencia e Innovación, Consolider-Ingenio CSD2008-00010,TEC2012-38800-C03-{02} and European Union (FEDER)

A new rebbachisaurid sauropod from the Aptian–Albian, Lower Cretaceous Rayoso Formation, Neuquén, Argentina

Rebbachisaurids are a group of basal diplodocimorph sauropods that diversified in Gondwana at the end of the Early Cretaceous and the beginning of the Late Cretaceous. It is a group of great palaeobiogeographical interest, for it clearly illustrates various processes of dispersal throughout Gondwana and to Laurasia prior to the breakup of Africa and South America. However, the relationships within the group are still under discussion owing to the scarcity of cranial material that would help clarify them. In the present paper we describe the new rebbachisaurid Lavocatisaurus agrioensis gen. et sp. nov. from the Aptian–Albian (Lower Cretaceous) of Neuquén (Argentina). Remains have been recovered belonging to an adult specimen (holotype) and two immature specimens (paratypes). Taken together, almost all the bones of the taxon are represented, including most of the cranium. Lavocatisaurus agrioensis gen. et sp. nov. is the first rebbachisaurid from Argentina with an almost complete cranium, making it possible to recognize differences with respect to other rebbachisaurids, such as the highly derived Nigersaurus. Among its most notable characters are the presences of a large preantorbital fenestra and maxillary teeth that are significantly larger than those of the dentary. Our phylogenetic study places Lavocatisaurus amongst basal rebbachisaurids, as the sister lineage to Khebbashia (the clade formed by Limaysaurinae + Rebbachisaurinae). This position, which is somewhat more derived than that previously suggested for Comahuesaurus and Zapalasaurus (the Argentinean rebbachisaurids closest in geographical and geological terms), reaffirms the presence of different basal rebbachisaurid lineages in the Early Cretaceous of Patagonia

Un entremés para la corte virreinal limeña

Grâce à un travail pertinent d’annotation et d’interprétation philologique, il est possible de reconstruire et de révéler la perspective criolla que Pedro de Peralta Barnuevo a développée dans l’entremés qui devait s’intercaler entre les actes de La Rodoguna (1727), une œuvre destinée à célébrer l’anniversaire du roi Philippe V dans le palais vice-royal de Lima.Through careful annotation and philological interpretation, it is possible to reconstruct and reveal the creole perspective developed by Pedro de Peralta Barnuevo in the entremés to be performed between the acts of “La Rodoguna” (1727), a work intended for celebrating king Philip V’s anniversary at the viceroyal palace of Lima.Mediante una adecuada labor de anotación e interpretación filológica es posible reconstruir y revelar la perspectiva criolla que Pedro de Peralta Barnuevo desarrolló en el entremés escrito para intercalarse entre las jornadas de La Rodoguna (1727), una obra destinada a festejar los años del rey Felipe V en el palacio virreinal de Lima

A strike-slip fault corridor within the Alpujarra Mountains (Betic Cordilleras, Spain)

15 páginas, 6 figuras.[EN] In a long »corridor« in the internal zone of the Betic Cordilleras, bounded to the north by the Sierra Nevada and to the south by the Sierras Lujar, Contraviesa and Gador, two discernible bands of strike-slip faults exist: These bands lie in an approximately E-W direction and are well exposed throughout and beyond the 85 km long belt. The characteristic features of strike-slip faults, such as cataclastic rocks composed of variously textured fault breccia, which also include fragments of rocks up to several metres in size, incipient foliation, and striation demonstrate the right-lateral nature of the displacement. There are also fractures which run in a NW-SE and NNE-SSW direction, and apparently originated after formation of the E-W faults. The magnitude of lateral displacements is difficult to calculate. Evidence of considerable vertical movement can be found locally. These strike-slip displacements have essentially occurred since the middle Miocene period and might still be taking place.[AL] In einem langen Korridor in der Internzone der Betischen Kordilleren, der im Norden durch die Sierra Nevada und im Süden von den Sierren Lujar, Contraviesa und Gador begrenzt wird, sind zwei Streifen mit Blattverschiebungen zu beobachten. Sie streichen etwa E-W und sind gut entlang des 85-km-langen Gürtels aufgeschlossen. Die charakteristischen Merkmale von Blattverschiebungen wie etwa kataklastische Gesteine mit verschiedenen texturierten Verwerfungsbrekzien, welche auch bis zu mehreren Metern große Gesteinsblöcke enthalten, beginnende Schieferung und Harnischbildung, zeigen die dextrale Natur der Bewegung. Daneben treten NW-SE und NNE-SSW streichende Störungen auf, die offensichtlich nach der Bildung der E-W verlaufenden Blattverschiebungen entstanden sind. Das Ausmaß des lateralen Versatzes ist schwer abzuschätzen. Diese Bewegungen finden seit dem mittleren Miozän statt und sind möglicherweise immer noch aktiv.[FR] Dans un long couloir situé dans la zone interne des Chaînes Bétiques et limité au Nord par la Sierra Névada et au Sud par les Sierras de Lujar, Contraviesa et Gador, s'observent deux trains de failles de décrochements. Ces trains ont une direction à peu près E-W et sont bien exposés tout au long des 85 Km de cette zone. Les traits caractéristiques des décrochements, tels que cataclasites, brèche de faille avec fragments de roches jusqu'à plusieurs mètres de longueur, schistosité naissante et striation, démontrent la nature dextre du déplacement. Il existe aussi des fractures de direction NW-SE et NNW-SSW qui se sont vraisemblablement formées postérieurement aux failles E-W. La valeur du déplacement latéral est difficile à estimer. On rèléve localement des indices de mouvements verticaux importants. Ces décrochements se sont produits essentiellement à partir du Miocène moyen et peuvent encore se poursuivre aujourd'hui.This study was carried out under the auspices of the Departamento de Investigaciones Geológicas del C.S.I.C., Centro Coordinado con la Universidad de Granada, during a research project entitled: "Borde mediterráneo español: Evolución del Orógeno Bético y Geodinámica de las Depresiones Neógenas".Peer reviewe