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Avian and crocodilian eggshells from the upper Barremian site of Vadillos-1 (Lower Cretaceous, Cuenca province, Spain)

  • Bravo, Ana M.
  • Sevilla, Paloma
  • Barroso Barcenilla, Fernando
The new upper Barremian microfossil site of Vadillos-1 (Lower Cretaceous, Beteta Gorges, Cuenca province, Spain) has yielded a rich fossil assemblage consisting of numerous eggshell fragments along with diverse skeletal remains of fishes, amphibians, turtles, crocodyliforms and dinosaurs. Crocodilian eggshells constitute the main fraction of the eggshell assemblage which includes abundant material belonging to the oofamily Krokolithidae, as well as a new type of crocodilian eggshells (Neokrokolithes trigonalis oogen. et oosp. nov.) characterised by a type of ornamentation and microstructure of the basal knobs not described before. Few fragments of the oospecies cf. Mycomorphoolithus kohringi, attributed to non-eusuchian crocodylomorphs, have been also found in this site thus expanding the record of this oospecies to the upper Barremian. The eggshell assemblage has also yielded the first record of avian eggshells (Tristratioolithus minuta oogen. et oosp. nov.) from the Lower Cretaceous of Europe. Comparisons with Lower Cretaceous avian eggshells suggest its possible attribution to Enantiornithes. The tiny eggshell fragments assemblage found at Vadillos-1 site is representative of a small sized fauna. Besides, the diversity appears strongly biased with >90% of the eggshells belonging to crocodilians and approximately 9% to Aves. As established for similar outcrops, this bias may reflect differences in preservation of eggshell types or represent, at least in part, a wetland ground nesting site.
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Differential responses of Miocene rodent metacommunities to global climatic changes were mediated by environmental context

  • Blanco, Fernando
  • Gómez Cano, Ana Rosa
  • Cantalapiedra, Juan L.
  • Domingo, Maria Soledad
  • Domingo, Laura
  • Menéndez, Iris
  • Flynn, Lawrence J.
  • Hernández Fernández, Manuel
The study of how long-term changes affect metacommunities is a relevant topic, that involves the evaluation of connections among biological assemblages across different spatio-temporal scales, in order to fully understand links between global changes and macroevolutionary patterns. We applied multivariate statistical analyses and diversity tests using a large data matrix of rodent fossil sites in order to analyse long-term faunal changes. Late Miocene rodent faunas from southwestern Europe were classified into metacommunities, presumably sharing ecological affinities, which followed temporal and environmental non-random assembly and disassembly patterns. Metacommunity dynamics of these faunas were driven by environmental changes associated with temperature variability, but there was also some influence from the aridity shifts described for this region during the late Miocene. Additionally, while variations in the structure of rodent assemblages were directly influenced by global climatic changes in the southern province, the northern sites showed a pattern of climatic influence mediated by diversity-dependent processes.
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Iura Novit Curia and Commercial Arbitration In Spain

  • De Miguel Asensio, Pedro Alberto
I. Introduction. II. Legal Framework. 1. International Conventions. 2. National Statutes. A. Arbitration. B. Civil Procedure. C. Application of Foreign Law. 3. Arbitration Rules. III. Iura novit curia in civil proceedings before ordinary courts. IV. Judicial review of the powers of arbitrators with regard to parties' pleadings: general trends. 1. Applicability of iura novit curia to arbitration. 2. Arbitrators’ power to determine the applicable rules. V. Validity and enforcement of awards. 1. Fair Hearing. 2. Procedural irregularity. 3. Excess of power. VI. Conduct of arbitral proceedings. 1. Burden of Proof. 2. Impartiality. 3. Default awards. VII. Application of the law by the actors involved. VIII. Conclusion.
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Planarity vs. Non-Planarity in the Electronic Communication of TCAQ-Based Push-Pull Chromophores

  • García, Raúl
  • Calbo, Joaquín
  • Viruela, Rafael
  • Herranz, Maria Ángeles
  • Ortí, Enrique
  • Martín, Nazario
Donor-acceptor alkynes, endowed with 11,11,12,12-tetracyano-9,10-anthraquinodimethane (TCAQ) and N,N-dimethylaniline (DMA) units, have been further functionalized by a [2+2] tetracyanoethylene (TCNE) cycloaddition followed by a subsequent retroelectrocyclization to form distorted non-planar molecular structures with 1,1,4,4-tetracyanobuta-1,3-diene (TCBD) bridge ligands. Comprehensive spectroscopic, electrochemical, and computational studies have been carried out to compare the electronic communication in these planar (alkyne) and nonplanar (with TCBD units) TCAQ-based push-pull chromophores. Cyclic voltammetry and UV-Vis absorption measurements confirm a noticeable electronic communication between the TCAQ and DMA units regardless the quasi-orthogonal arrangement of the two dicyanovinyl halves of the TCBD groups, which partially hinder the electronic communication. The experimental trends are strongly supported by theoretical calculations performed at the density functional theory level, which further evidence an active electron-withdrawing role of the TCBD bridge both in the formation of the charged species and in the lowest-lying absorption features. The novel push-pull TCAQ-based derivatives including the TCBD bridge show a broad absorption in the whole visible range while having a structure highly distorted from planarity. These chromophores may therefore be viewed as appealing candidates to be exploited in photovoltaic devices with minimal aggregation phenomena.
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El desahucio de viviendas y su incidencia sobre el sujeto

  • Contreras Jiménez, Encarnación
El artículo aborda, desde una perspectiva antropológica, el desahucio de viviendas en un contexto de crisis económica, atendiendo a aspectos como la socialización de los afectados con sus pares, las interacciones y colaboraciones de los agentes implicados en movimientos sociales emergentes, así como a las prácticas implementadas por los mismos. Se analizarán los efectos, que la problemática del desahucio está suponiendo para los sujetos que la vivencian, prestando especial atención a las consecuencias sobre el cuerpo ocasionadas por el sufrimiento, siendo ello un potente indicador de la relevancia humana del desahucio así como de las valoraciones y categorías culturales compartidas. También se tratarán los cambios que se están operando en las representaciones sociales e individuales, sobre aspectos como la propiedad, la ocupación o el alquiler.
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Pastorado, soberanía y salvación: un análisis del poder gubernativo y jurídico en el cristianismo medieval (siglos XI-XIII)

  • Catalina Gallego, Cristina
El presente trabajo de investigación doctoral consiste en un análisis transdisciplinar de las particularidades del cristianismo medieval entre los siglos XI-XIII. Se estudia concretamente el proceso y las condiciones de formación del gobierno pastoral juridizado de la Iglesia romana y las resistencias que ello suscitó en el campo medieval de la economía de salvación cristiana. El análisis se lleva a cabo desde una perspectiva que aúna la narrativa histórica con la reflexión conceptual. Se trata de un intento de trasgredir algunas de las tradicionales fronteras disciplinares entre Historia y Filosofía, combinando preguntas de investigación y modos de aproximarse al objeto propio de ambas. Con tal propósito, además de aunar narrativa histórica y reflexión conceptual, el análisis se afronta desde diferentes escalas y planos intelectivos. El trabajo comienza ofreciendo un marco amplio de la época medieval, sigue con la escala europea de la formación de la Cristiandad latina, continúa ajustando el enfoque al estudio de caso de una región periférica y termina en un plano más teórico/conceptual con un diálogo con la analítica del poder de Michel Foucault. Este análisis se plantea con el propósito de dar sentido a determinados problemas históricos y respuesta a preguntas razonadas sobre el devenir de las formas políticas de Occidente. Desde una perspectiva amplia, se ha tratado de entender cómo dentro del campo religioso del cristianismo se conformó un gobierno pastoral altamente mundanizado durante el período plenomedieval. La cuestión histórica que se aborda se refiere al hecho de que la organización institucional del oficio sacerdotal de la religión de salvación cristiana desplegase prácticas y dispositivos de poder cuya finalidad excedía la mera cura pastoral -tales como la guerra con el infiel y el hereje o la incriminación judicial de la conducta religiosa disidente- al mismo tiempo que profundizaba la administración sacramental –o dirección de almas- entre los siglos IX y XIII. Desde un punto de vista genealógico, este fenómeno del cristianismo medieval nos confronta con la pregunta por el devenir de las esferas religiosa y política en la historia de Occidente...
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Major merging history in CANDELS. I. Evolution of the incidence of massive galaxy-galaxy pairs from z=3 to z ∼ 0

  • Pérez González, Pablo Guillermo
  • otros, ...
The rate of major galaxy-galaxy merging is theoretically predicted to steadily increase with redshift during the peak epoch of massive galaxy development (1 <= z <= 3). We use close-pair statistics to objectively study the incidence of massive galaxies (stellar M1 > 2 x 10(10)M(circle dot)) hosting major companions (1 <= M-1/M-2 <= 4; i.e. <4: 1) at six epochs spanning 0 < z < 3. We select companions from a nearly complete, mass-limited (>= 5 x 10(9)M(circle dot)) sample of 23 696 galaxies in the five Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey fields and the Sloan Digital Sky Survey. Using 5-50 kpc projected separation and close redshift proximity criteria, we find that the major companion fraction f(mc)(z) based on stellar mass-ratio (MR) selection increases from 6 per cent (z similar to 0) to 16 per cent (z similar to 0.8), then turns over at z similar to 1 and decreases to 7 per cent (z similar to 3). Instead, if we use a major F160W flux-ratio (FR) selection, we find that f(mc)(z) increases steadily until z similar to 3 owing to increasing contamination from minor (MR > 4: 1) companions at z > 1. We show that these evolutionary trends are statistically robust to changes in companion proximity. We find disagreements between published results are resolved when selection criteria are closely matched. If we compute merger rates using constant fraction-to-rate conversion factors (C-merg,C-pair = 0.6 and T-obs,T-pair = 0.65 Gyr), we find that MR rates disagree with theoretical predictions at z > 1.5. Instead, if we use an evolving T-obs,T-pair(z) alpha (1 + z)- 2 from Snyder et al., our MR-based rates agree with theory at 0 < z < 3. Our analysis underscores the need for detailed calibration of C-merg,C-pair and T-obs,T-pair as a function of redshift, mass, and companion selection criteria to better constrain the empirical major merger history.
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Quality Control of Surface Wind Observations in Northeastern North America. Part I: Data Management Issues

  • Lucio Eceiza, Etor E.
  • González Rouco, J. Fidel
  • Navarro, Jorge
  • Beltrami, Hugo
A quality control (QC) process has been developed and implemented on an observational database of surface wind speed and direction in northeastern North America. The database combines data from 526 land stations and buoys spread across eastern Canada and five adjacent northeastern U.S. states. It combines the observations of three different institutions spanning from 1953 to 2010. The quality of these initial data varies among source institutions. The current QC process is divided into two parts. Part I, described herein, is focused on issues related to data management: issues stemming from data transcription and collection; differences in measurement units and recording times; detection of sequences of duplicated data; unification of calm and true north criteria for wind direction; and detection of physically unrealistic data measurements. As a result, around similar to 0.1% of wind speed and wind direction records have been identified as erroneous and deleted. The most widespread error type is related to duplications within the same station, but the error type that entails more erroneous data belongs to duplications among different sites. Additionally, the process of data compilation and standardization has had an impact on more than 90% of the records. A companion paper (Part II) deals with a group of errors that are conceptually different, and is focused on detecting measurement errors that relate to temporal consistency and biases in wind speed and direction.
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Quality Control of Surface Wind Observations in Northeastern North America. Part II: Measurement Errors

  • Lucio Eceiza, Etor E.
  • González Rouco, J. Fidel
  • Navarro, Jorge
  • Beltrami, Hugo
  • Conte, Jorge
A quality control (QC) process has been developed and applied to an observational database of surface wind speed and wind direction in northeastern North America. The database combines data from three datasets of different initial quality, including a total of 526 land stations and buoys distributed over the provinces of eastern Canada and five adjacent northeastern U.S. states. The data span from 1953 to 2010. The first part of the QC deals with data management issues and is developed in a companion paper. Part II, presented herein, is focused on the detection of measurement errors and deals with low-variability errors, like the occurrence of unrealistically long calms, and high-variability problems, like rapid changes in wind speed; some types of biases in wind speed and wind direction are also considered. About 0.5% (0.16%) of wind speed (wind direction) records have been flagged. Additionally, 15.87% (1.73%) of wind speed (wind direction) data have been corrected. The most pervasive error type in terms of affected sites and erased data corresponds to unrealistic low wind speeds (89% of sites affected with 0.35% records removed). The amount of detected and corrected/removed records in Part II (; 9%) is approximately two orders of magnitude higher than that of Part I. Both management and measurement errors are shown to have a discernible impact on the statistics of the database.
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Intencionalidad y alteridad. Génesis del concepto de alteridad en la obra de Emmanuel Lévinas

  • Camacho Galván, Leopoldo
La filosofía de Levinas guarda una gran cercanía con la fenomenología de Husserl, en algunas obras se tratan temas claves de aquella, como son las obras reunidas en EDE, THI, TI, o se discuten y contraponen algunas de sus tesis (DE y EE). Levinas realiza a lo largo de su obra una revisión y un dialogo constante con los postulados básicos de la fenomenología y la filosofía que ella inaugura. En AE se presupone una superación de la ontología y la fenomenología, ahí se dejan atrás categorías e incluso la necesidad de la articulación del análisis y las descripciones que se hacen presentes en las obras anteriores. AE presupone un giro epistémico y ontológico y una nueva lógica adverbial (como la ha denominado J.Rolland), y se halla en un momento posterior a la crítica que J. Derrida elabora sobre TI. Este trabajo se sitúa en la lógica de TI, obra que constituye la condición de posibilidad de toda reconfiguración fenomenológica posterior y no pretende rebatir la famosa crítica de Derrida; antes bien, aquello que da origen a esa crítica (la idea de que Levinas no ha podido aún abandonar la lógica del ser y de la fenomenología), es lo que se pretende analizar en este trabajo. Más que una crítica, el uso y tensión respecto de ciertas nociones fenomenológicas aparece aquí como lo que hace posible recuperar el pensamiento de Levinas como verdaderamente fenomenológico...
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