188 research outputs found

    Xacementos arqueolóxicos e achados epigráficos en Galicia

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    Aptian-Albian coral faunas from the Sierra del Carche (Prebetic, Murcia, southern Spain)

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    Three small coral faunas from the Early Aptian, Latest Aptian and Late Albian from a sedimentary section in the Sierra del Carche are described. A total of 17 species in 15 genera of the suborders Amphiastraeina, Archeocaeniina, Faviina, Fungiinna, Heteroceniina, Mocrosolenina, and Stylinina are reported. One species in the genus Heteropistophyllum is described as nes. The Early Aptian fauna encompasses six speces, the Late Aptian fauna three species and the Late Albian fauna ten species. The three faunas do almost not share species. There are only colonial cords

    Hauterivian shallow marine calcareous biogenic mounds: S.E. Spain

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    Hauterivian biogenic deposits from the Prebetic northern margin near Caudete (Albacete Province, southeastern Spain) are represented by low domed bodies, less than 10 m thick, surrounded by bioclastic sediments and capped by siliciclastics. They consist of a coral, stromatoporoid and microbial framework with cavities filled by mud, rapidly lithified. Intermound bioclastics, derived from the mound organic community, reflect high energy conditions and shallow water settings. Mound growth and architecture were controlled by nutrient fluxes and internal light gradients. Comparisons with closely related structures from the Palaeozoic and the Recent show some similarities but also significant differences; the example documented here also departs from other Cretaceous occurrences

    Caracterización secuencial y bioestratigráfica del Aptiense-Albiense p. p. en la Sierra de Sopalmo, Prebético Interno (Prov. de Murcia).

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    Se analizan las unidades litoestratigráficas y las principales facies de los materiales correspondientes al Aptiense-Albiense p.p. en la Sierra de La Solana del Sopalmo (Jumilla, Murcia). así como su contenido fosilífero, fundamentalmente foraminíferos bentónicos y rudistas, con el que se determina su edad. Se reconocen cinco secuencias principales, caracterizando en cada una de ellas tanto su evolución vertical como las variaciones específicas de las mesosecuencias que las componen. Al mismo tiempo, se relacionan con las secuencias de depósito establecidas a escala regional. Finalmente, se destaca la importante tasa de sedimentación que presenta este afloramiento durante todo el Cretácico Inferior, lo que le hace comparable con el de la Sierra del Carche, mientras que, por el contrario, no existe una continuidad paleogeográfica con el de Sierra Larga

    El yacimiento de icnitas de vertebrados de la Hoya de la Sima (Mioceno termina). Jumilla, Murcia, España

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    En 1997 se descubrió el yacimiento de donde provenían las lajas de yeso con huellas de pisadas de animales y que eran utilizadas para solar bodegas. La cantera de la Hoya de la Sima ha proporcionado numerosos rastros de vertebrados aunque solamente se haya preparado menos de un 10% de su extensión. El equipo del Ayuntamiento de Jumilla y los equipos de investigación geológica han desarrollado conjuntamente un plan de estudio, limpieza y mantenimiento del yacimiento con el fin de protegerlo y promocionar su visita. La edad de los yesos es Messiniense (Mioceno terminal) y la importancia científica reside principalmente en las mismas huellas ya que es la primera vez que se reconocen algunas de ellas de esta edad en España y también en el análisis de su conservación en este tipo de materiales. Es un claro ejemplo del trabajo conjunto entre diferentes equipos en los que se integran entidades locales con la finalidad de reconocer el Patrimonio Geológico de la zona, mantenerlo y prepararlo para su uso con carácter no destructivo. [ABSTRACT] In 1997, the source site for the gypsum layers with animal footprints used to line wine cellars was discovered. The Hoya de la Sima quarry has provided many traces of vertebrates despite the fact that so far less than 10% of its extension has been unveiled. Through collaboration between the town council of Jumilla and several geology research teams, a proposal to study, clean and maintain the site has been drawn up for its protection and to attract visitors. The gypsums have been aged as Messinian (end Miocene) and their scientific value mainly lies in the prints themselves, since this is the first time prints of this age have been identified in Spain, and in their preservation in this type of deposit. This project is the clear result of collaboration among several teams, including those from local institutions, targeted at recognizing the Geological Heritage of the area, and preserving and protecting this natural resource

    Towards predictive models in food engineering: Parameter estimation dos and don'ts

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    1 póster.-- 29th EFFoST International Conference, 10-12 November 2015, Athens, GreeceRigorous, physics based, modeling is at the core of computer aided food process engineering. Models often require the values of some, typically unknown, parameters (thermo-physical properties, kinetic constants, etc). Therefore, parameter estimation from experimental data is critical to achieve desired model predictive properties. Unfortunately, it must be admitted that often experiment design and modeling are fully separated tasks: experiments are not designed for the purpose of modeling and models are usually derived without paying especial attention to available experimental data or experimentation capabilities. When, at some point, the parameter estimation problem is put on the table, modelers use available experimental data to ``manually'' tune the unknown parameters. This results in inaccurate parameter estimates, usually experiment dependent, with the implications this has in model validation. This work takes a new look into the parameter estimation problem in food process modeling. First the common pitfalls in parameter estimation are described. Second we present the theoretical background and the numerical techniques to define a parameter estimation protocol to iteratively improve model predictive capabilities. This protocol includes: reduced order modeling, structural and practical identifiability analyses, data fitting with global optimization methods and optimal experimental design. And, to finish, we illustrate the performance of the proposed protocol with an example related to the thermal processing of packaged foods. The model was experimentally validated in the IIM-CSIC pilot plantThe authors acknowledge financial support from the EU (Project SPECTRAFISH), Spanish Ministry of Science and Innovation (Project ISFORQUALITY) and CSIC (Project CONTROLA)Peer reviewe

    Expectativas de vida de los usuarios del Centro de Inserción Social (CIS) Rafael Salillas de Huesca en base a la experiencia vivida en su proceso.

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    Este Trabajo de Fin de Grado intenta acercarse a lo que puede aportar el trabajo social en relación a las expectativas de futuro de los usuarios del Centro de Inserción Social Rafael Salillas de Huesca, con el propósito y objetivo de conocer sobre aquellos aspectos sociales, familiares y personales, entre otros, que resultan más representativos y que afectan, en mayor medida, en la toma de decisiones de los usuarios. Para ello, se hará uso de diferentes métodos de investigación como encuestas y entrevistas, tanto a profesionales como a usuarios del propio centro, con la intención de recabar la información más específica posible en relación al objeto de estudio propuesto inicialmente, sirviéndonos de teoría y legislación relacionada con el ámbito de actuación.<br /

    Expectativas de vida de los usuarios del Centro de Inserción Social (CIS) Rafael Salillas de Huesca en base a la experiencia vivida en su proceso.

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    Este Trabajo de Fin de Grado intenta acercarse a lo que puede aportar el trabajo social en relación a las expectativas de futuro de los usuarios del Centro de Inserción Social Rafael Salillas de Huesca, con el propósito y objetivo de conocer sobre aquellos aspectos sociales, familiares y personales, entre otros, que resultan más representativos y que afectan, en mayor medida, en la toma de decisiones de los usuarios. Para ello, se hará uso de diferentes métodos de investigación como encuestas y entrevistas, tanto a profesionales como a usuarios del propio centro, con la intención de recabar la información más específica posible en relación al objeto de estudio propuesto inicialmente, sirviéndonos de teoría y legislación relacionada con el ámbito de actuación.<br /

    The upper Valanginian of the Oliva section (Prebetic Zone, Valencia): facies analysis, biostratigraphy, C-isotope stratigraphy and organic geochemistry

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    The Upper Valanginian stratigraphic section of the sierra de la Oliva (Prebetic, Valencia province) records a significant sedimentary episode which has been named as ”Weissert Event”.This event is characterized by a positive excursion in the δ13C profile, which have been considered to be linked to a global perturbation in the carbon cycle, with environmental consequences that have been the object of debate, especially the degree of oxygenation of the sea bottom waters.We studied the sedimentary evolution during the late Valanginian in a shallow platform setting, beginning with the drowning of the early Valanginian carbonate platform, followed by a succession of shallowing- upwards sequences, which define a general deepening-upward evolution. The δ13C profile records a positive excursion during the late Valanginian, and the biomarker study has revealed the episodic development of anoxia, coeval to the deposition of organic rich facies, occurred during the episode of maximum deepening of the platform.This study has demonstrated that the “Weissert Event” has been recorded in the Prebetic platform, and that the environmental perturbations gave place to the occasional development of anoxia in a context of high organic productivityLa sección estratigráfica del Valanginiense superior de la sierra de la Oliva (Prebético, provincia de Valencia) registra un interesante episodio sedimentario que ha sido denominado “Evento Weissert”. Este evento está caracterizado por una excursión positiva en los valores del δ13C, que se considera ligada a una perturbación global en el ciclo del carbono, cuyas consecuencias ambientales son objeto de discusión, especialmente las condiciones de oxigenación en los fondos marinos. El estudio presentado aquí muestra la evolución sedimentaria del Valanginiense superior en un ámbito de plataforma somera, que comienza con el drowning de la plataforma carbonatada del Valanginiense inferior, y continúa con una sucesión de secuencias de somerización, que en conjunto definen una evolución general de profundización. El perfil de δ13C registra una excursión positiva durante el Valanginiense superior, y el estudio de los biomarcadores ha puesto de manifiesto el desarrollo puntual de anoxia, simultáneo al depósito de facies ricas en materia orgánica, ocurrido en el momento de mayor profundización de la plataforma. Este estudio demuestra que el denominado “EventoWeissert” quedó reflejado en la plataforma Prebética, y que las perturbaciones ambientales locales dieron lugar al desarrollo puntual de anoxia en un contexto de elevada productividad orgánic

    Role of neurotrophins in depressive symptoms and executive function: Association analysis of NRN1 gene and its interaction with BDNF gene in a non-clinical sample

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    Background Neuritin-1 is a neurotrophic factor involved in synaptic plasticity that has been associated with depressive disorders, schizophrenia and cognitive performance. The study of genotype-phenotype relationships in healthy individuals is a useful framework to investigate the etiology of brain dysfunctions. We therefore aimed to investigate in a non-clinical sample whether NRN1 gene contributes to the psychopathological profile, with a particular focus on the clinical dimensions previously related to the NRN1 gene (i.e. depressive and psychotic). Furthermore, we aimed to analyze: i) the role of NRN1 on executive functions, ii) whether the association between either NRN1-psychopathological profile or NRN1-cognitive performance is moderated by the BDNF gene. Methods The sample is comprised of 410 non-clinical subjects who filled in the self-reported Brief Symptom Inventory (BSI) and were assessed for executive performance (Verbal Fluency, Wisconsin Card Sorting Test (WCST) and Letter-Number subscale (WAIS-III)). Genotyping included nine SNPs in NRN1 and one in BDNF. Results i) GG homozygotes (rs1475157-NRN1) showed higher scores on BSI depressive dimension and on total scores compared to A carriers (corrected p-values: 0.0004 and 0.0003, respectively). ii) A linear trend was detected between GG genotype of rs1475157 and a worse cognitive performance in WCST total correct responses (uncorrected p-value: 0.029). iii) Interaction between rs1475157-NRN1 and Val66Met-BDNF was found to modulate depressive symptoms (p=0.001, significant after correction). Limitations Moderate sample size; replication in a larger sample is needed. Conclusions NRN1 is associated with depressive symptoms and executive function in a non-clinical sample. Our results also suggest that the role of NRN1 seems to be modulated by BDNF.This study was supported by: i) Intramural Project CIBERSAM (P91E), ii) The Network of European Funding for Neuroscience Research, ERA-NET NEURON (PiM2010ERN-00642), iii) Instituto de Salud Carlos III through the project PI15/01420 (co-funded by European Regional Development Fund /European Social Fund, “Investing in your future”). Thanks to: i) the Comissionat per a Universitats i Recerca del DIUE (2014SGR1636), ii) Universitat de Barcelona and APIF-IBUB grant 2014. All funding sources had no further role in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the paper for publication
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