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The research presents for the first time a jointly analysis about the impact of the light intermediate Mediterranean (LMW) and dense deep Mediterranean (DMW) bottom currents on the sedimentation in the Alboran Sea (SW Mediterranean) and its paleoceanographic significance in response to climatic oscillations from the last glacial period to the Holocene. For that, an integration of chronostratigraphical, sedimentological, and compositional data from contourites formed by those water masses is carried out. That integration enable us to define three distinct contourite stratigraphic models. (I) The contourite terrace model, characterized by coarse-grained contourites, which is an archive of the interplay between the high-energy Atlantic Water-LMW interface and glacioeustasy from the Younger Dryas to the Holocene. (II) The contourite drift models, which are archives of rapid ocean-climate coupled fluctuations since 29.5 kyr. They comprise coarse-grained contourites formed by a relatively fast LMW and fine-grained contourites formed by a relatively weak DMW, except for the Heinrich Stadials HS3 to HS1 and YD when coarse-grained contourites were deposited. (III) The contourite/turbidite mixed model represents another archive of DMW and glacioeustasy interplay from the end of the late Pleistocene to Holocene., That contourite stratigraphy allows us to infer for the first time the relative variability of the LMW versus DMW flow regimes, which records differences and similarities. The similarities indicate that the LMW and DMW fluctuations occur in parallel at millennial and centennial time scales. The differences refer to the overall higher velocity of LMW versus DMW; the magnitude changes in velocities that are lower for LMW and higher for DMW; the recognition of three short ventilation events (a, b, c) during HS1 and HS2 for only DMW; and the distinct LMW and DMW responses to the onset of glacial conditions and return to interglacial conditions during the HSs, YD and Holocene cold periods

La preferencia de los jóvenes por el tipo de medios de comunicación que utilizan ha ido cambiando. La bidireccionalidad que permiten muchos de los actuales medios ha sido determinante en ello, dado que, facilitan que los jóvenes puedan mantener relaciones interpersonales de manera online. Los medios de comunicación que eligen son un factor de importante impacto en el desarrollo de la identidad de los adolescentes y los jóvenes. Los contenidos difundidos en ellos, en ocasiones, no son apropiados para su desarrollo, pudiendo llegar a afectar de forma negativa a su autoestima, generando inseguridades y llegando, en casos extremos, a causarles problemas de salud mental. Por otra parte, el comportamiento de consumo de gran parte de los jóvenes se ha visto afectado también por el contenido de los medios de comunicación. La publicidad que llega a los jóvenes a través de los medios ha evolucionado, valiéndose del uso de nuevas estrategias para atraer y afianzar a la población joven. Una de las estrategias que aplican las marcas, es el uso en sus campañas y acciones publicitarias de figuras influyentes, los llamados “influencers”, con los cuales se pretende que el consumidor se sienta identificado o en sintonía. Los “influencers” actúan como nuevos modelos de comportamiento en el desarrollo de su identidad., Grado en Publicidad y Relaciones Públicas

Several water masses are involved in the circulation of oceans, their bottom layers impacting on sedimentation through contourites. The majority of palaeoceanographic studies on regional contourites are performed for one water mass despite that their joint study would offer relevant clues to understand past ocean and climate interaction. This works presents for the first time a an analysis about the impact of the Light Intermediate Mediterranean (LMW) and Dense Deep Mediterranean (DMW) bottom currents on the sedimentation in the Alboran Sea (SW Mediterranean) and its paleoceanographic significance in response to climatic oscillations from the last glacial period to the Holocene. To do this, an integration of chronostratigraphical, sedimentological, and compositional data is carried out from contourites formed by those water masses. That integration enable us to define three distinct contourite stratigraphic models. (I) The contourite terrace model, characterized by coarse-grained contourites, which is an archive of the interplay between the high-energy Atlantic Water-LMW interface and glacioeustasy from the Younger Dryas (YD) to the Holocene. (II) The contourite drift models, which are archives of rapid ocean-climate coupled fluctuations since 29.5 kyr. They comprise coarse-grained contourites formed by a relatively fast LMW and fine-grained contourites formed by a relatively weak DMW, except for the Heinrich Stadials HS3 to HS1 and YD when coarse-grained contourites were deposited. (III) The contourite/turbidite mixed model represents another archive of DMW and glacioeustasy interplay from the end of the late Pleistocene to Holocene. That contourite stratigraphy allows us to infer for the first time the relative variability of the LMW versus DMW flow regimes, which records differences and similarities. The similarities indicate that the LMW and DMW fluctuations occur in parallel at millennial and centennial time scales. The differences refer to the overall higher v

El presente trabajo analiza las funciones y procesos desarrollados por los agentes transitarios en el marco del comercio exterior de mercancías. Este análisis se realiza de manera general, pero centrando la descripción en los acontecimientos y contexto social y económico que se ha vivido a partir del año 2020 con motivo de la pandemia generada por el virus SARS-CoV 2, detallando la crónica de impactos sobre el comercio internacional que ha generado esta emergencia sanitaria y los problemas políticos que se han desarrollado simultáneamente. El trabajo genera información sobre el sector transitario a partir de la realización de una encuesta sobre empresas de Castilla y León que intenta indagar sobre los factores que condicionan la satisfacción de los usuarios de un servicio transitario., Máster en Comercio Exterior

We present a multidisciplinary study of morphology, stratigraphy, sedimentology, tectonic structure, and physical oceanography to report that the complex geomorphology of the Palomares continental margin and adjacent Algerian abyssal plain (i.e., Gulf of Vera, Western Mediterranean), is the result of the sedimentary response to the Aguilas Arc continental tectonic indentation in the Eurasian–Africa plate collision. The indentation is imprinted on the basement of the margin with elongated metamorphic antiforms that are pierced by igneous bodies, and synforms that accommodate the deformation and create a complex physiography. The basement is partially covered by Upper Miocene deposits sealed by the regional Messinian Erosive Surface characterized by palaeocanyons that carve the modern margin. These deposits and outcropping basement highs are then covered and shaped by Plio-Quaternary contourites formed under the action of the Light Intermediate and Dense Deep Mediterranean bottom currents. Even though bottom currents are responsible for the primary sedimentation that shapes the margin, 97% of this region's seafloor is affected by mass-movements that modified contourite sediments by eroding, deforming, faulting, sliding, and depositing sediments. Mass-movement processes have resulted in the formation of recurrent mass-flow deposits, an enlargement of the submarine canyons and gully incisions, and basin-scale gravitational slides spreading above the Messinian Salinity Crisis salt layer. The Polopo, Aguilas and Gata slides are characterized by an extensional upslope domain that shapes the continental margin, and by a downslope contractional domain that shapes the abyssal plain with diapirs piercing (hemi)pelagites/sheet-like turbidites creating a seafloor dotted by numerous crests. The mass movements were mostly triggered by the interplay of the continental tectonic indentation of the Aguilas Arc with sedimentological factors over time. The indentation, which involves, Applied Geology