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The topological partition theory states that icosahedral group affine extensions (fullerenes symmetry) are the most effective way to energetically optimize the surface covering. In recent decades, potential applications of fullerene symmetry have emerged in the major fields of biology, like enzyme inhibition and antiviral therapy. This research suggests a novel perspective to interpret the underlying spatial organization of cell populations in tissues from the polyhedral graph theory. We adopted this theoretical framework to study HUVEC cell in vitro angiogenesis assays on Matrigel. This work underscores the importance of extracellular Ca2+ gradients, both from conditioned BJ and pretreated HUVEC cells, in angiogenesis fullerene-rule spatial minimization., Peer Reviewed, Postprint (published version)

The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE.

The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE.

The Tinto and Odiel rivers (SW Spain) drain from a vast sulfide mining district and join at a 20-km-long estuary that enters the Atlantic Ocean. In this work, the contents of rare earth elements (REE) and fractionation in Neogene–Holocene sediment cores from La Fontanilla cove (Tinto estuary) were studied. The sediments were collected from a depth of 18 m at different distances from the recent river flow and were analyzed for new information on the temporal development of the REE load in the sediment column. Results show that the ∑ REE is higher in the finer sediments and during periods of mining activity from prehistoric to recent times. Marine influence appears to increase the light REE (LREE) relative to the heavy REE (HREE). The REE patterns of these estuarine sediments show convex curvatures in the MREE relative to the LREE and HREE, indicating the presence of acid-mixing processes between the fluvial waters affected by acid mine drainage (AMD) and seawater, as well as the precipitation of poorly crystalline mineral phases. Significant positive Eu anomalies were found in ebb-tide channels and marsh deposits, which can reflect the mineralogical composition and/or a strong localized salinity gradient combined with organic matter degradation. Sedimentological characteristics of the deposits appear to play the main role in accumulation and fractionation of the REE.

People with functional disability endure barriers to health and other services and to full participation in social life. In the context of COVID-19, this discrimination has been intensified worldwide. We examine how the experience of COVID-19 lockdown was depicted in comments to a video about functional disability and COVID published on VICE's YouTube channel. We analysed the first 100 comments on the video, which was posted in spring 2020, during the first COVID-19 lockdown (roughly from March to June 2020, with some variations around the world). We identified four themes: lack of access to care and services, isolation and lifestyle changes, mental health consequences, and peer support. Legal regulations regarding COVID-19 and people with functional disability have not been sufficient in most countries. The COVID-19 pandemic has exposed inadequate care systems, even in Western countries with advanced social protection policies.

This paper presents the easternmost mineralogical and geochemical evidence of the 1755 Lisbon tsunami found in the Western Mediterranean. This multidisciplinary analysis of a sediment core obtained in Gibraltar (southern Iberian Peninsula) has allowed us to differentiate a tsunamiite from an old lagoon (The Inundation). This tsunamigenic layer has increased levels of calcite and aragonite and higher concentrations of Ba and ferromagnesian elements in comparison with the underlying lagoonal sediments of this core. This layer is also differentiated by its paleontological record, with the introduction of marine species within this lagoon. The uppermost part of the core includes a transition from swampy/marsh paleoenvironments to terrestrial scenarios, with a final anthropogenic filling occurring during the last century.

This paper presents the easternmost mineralogical and geochemical evidence of the 1755 Lisbon tsunami found in the Western Mediterranean. This multidisciplinary analysis of a sediment core obtained in Gibraltar (southern Iberian Peninsula) has allowed us to differentiate a tsunamiite from an old lagoon (The Inundation). This tsunamigenic layer has increased levels of calcite and aragonite and higher concentrations of Ba and ferromagnesian elements in comparison with the underlying lagoonal sediments of this core. This layer is also differentiated by its paleontological record, with the introduction of marine species within this lagoon. The uppermost part of the core includes a transition from swampy/marsh paleoenvironments to terrestrial scenarios, with a final anthropogenic filling occurring during the last century.

This paper presents the easternmost mineralogical and geochemical evidence of the 1755 Lisbon tsunami found in the Western Mediterranean. This multidisciplinary analysis of a sediment core obtained in Gibraltar (southern Iberian Peninsula) has allowed us to differentiate a tsunamiite from an old lagoon (The Inundation). This tsunamigenic layer has increased levels of calcite and aragonite and higher concentrations of Ba and ferromagnesian elements in comparison with the underlying lagoonal sediments of this core. This layer is also differentiated by its paleontological record, with the introduction of marine species within this lagoon. The uppermost part of the core includes a transition from swampy/marsh paleoenvironments to terrestrial scenarios, with a final anthropogenic filling occurring during the last century.

The elemental content—mainly trace elements—of samples from two boreholes (PLN, CM) with evidence of tsunamiites, located in the Doñana National Park (SW Spain), were studied. The geochemical variations of the REE, LILE, HFSE, and other elements (Al, Ti, S, Na, Br, Sc, Co, Cr) were interpreted according to the mineralogy present in the samples. The results obtained show the geochemical complexity of the estuarine paleoenvironments, in this case with the existence of three Holocene-age tsunamigenic deposits (around 4.25, 3.56 and 2.2–2 kyr BP). The statistical analysis of the samples’ geochemistry, by means of linear correlation and factor analysis, made it possible to differentiate two associations. The first is representative of an inherited mineralogy (REE-Y-Rb-Sr-Cs-Th-U-Hf-Al-Ti-Co-Cr-Sc); the second includes elements (Br-Na) linked to mineral formation under evaporite conditions (halite). The trace element geochemistry of sediments thus becomes an excellent tool to identify tsunamiites in the studied zone, especially those elements that are clear proxies for marine incursions (Na, Br, Sr) and high energy events (Hf, Ti). The parent area of the provenance of the materials is mainly of felsic composition.

The elemental content—mainly trace elements—of samples from two boreholes (PLN, CM) with evidence of tsunamiites, located in the Doñana National Park (SW Spain), were studied. The geochemical variations of the REE, LILE, HFSE, and other elements (Al, Ti, S, Na, Br, Sc, Co, Cr) were interpreted according to the mineralogy present in the samples. The results obtained show the geochemical complexity of the estuarine paleoenvironments, in this case with the existence of three Holocene-age tsunamigenic deposits (around 4.25, 3.56 and 2.2–2 kyr BP). The statistical analysis of the samples’ geochemistry, by means of linear correlation and factor analysis, made it possible to differentiate two associations. The first is representative of an inherited mineralogy (REE-Y-Rb-Sr-Cs-Th-U-Hf-Al-Ti-Co-Cr-Sc); the second includes elements (Br-Na) linked to mineral formation under evaporite conditions (halite). The trace element geochemistry of sediments thus becomes an excellent tool to identify tsunamiites in the studied zone, especially those elements that are clear proxies for marine incursions (Na, Br, Sr) and high energy events (Hf, Ti). The parent area of the provenance of the materials is mainly of felsic composition.

The Doñana National Park is a Biosphere Reserve located within the estuary of the Guadalquivir River (SW Spain). It is mainly composed of extensive fluvio-tidal marshes partially protected by an elongated sandy spit. Three phases have been distinguished in the late Holocene evolution of this spit based on textural, geochemical, palaeontological and, chronological data recorded in a long core (31 m). Phase 1 (890 BCE-218 BCE) is characterized by the alternation of lagoonal silty sediments and slightly polluted marsh deposits, the latter with contamination from thousand-year-old mining. Phase 2 (218 BCE-90 CE) is characterized by several historical tsunamis, which caused the erosion of previous dune systems and the deposit of these sandy sediments on the adjacent bottom of the lagoon. Phase 3 (90 CE-Present) includes a regressive sequence (lagoonal bottommarsh-dune system), with the pollution of lagoonal sediments due to Roman mining activities., El Parque Nacional de Doñana es una Reserva de la Biosfera localizada dentro del estuario del río Guadalquivir (S.O. de España). Esta Reserva está formada principalmente por marismas fluvio-mareales parcialmente protegidas por una flecha arenosa alargada. Se han diferenciado tres fases en la evolución holocena tardía de esta flecha, con base en el análisis multidisciplinar (textura, geoquímica, paleontologíca, cronología) de un testigo largo (31 m). La fase 1 (890 BCE-218 BCE) se caracteriza por la alternancia de sedimentos lagunares limosos y depósitos de marisma levemente contaminados por metales pesados debido a una actividad minera milenaria. La fase 2 (218 BCE-90 CE) se distingue por la acción de varios tsunamis históricos, que causaron la erosión de sistemas dunares previos, así como el depósito de estos sedimentos arenosos sobre el fondo arcilloso de la laguna adyacente. La fase 3 (90 CE-actual) incluye una secuencia regresiva (laguna-marisma-sistema dunar) con una nueva contaminación de los sedimentos lagunares debido a las actividades mineras romanas.

The elemental content—mainly trace elements—of samples from two boreholes (PLN, CM) with evidence of tsunamiites, located in the Doñana National Park (SW Spain), were studied. The geochemical variations of the REE, LILE, HFSE, and other elements (Al, Ti, S, Na, Br, Sc, Co, Cr) were interpreted according to the mineralogy present in the samples. The results obtained show the geochemical complexity of the estuarine paleoenvironments, in this case with the existence of three Holocene-age tsunamigenic deposits (around 4.25, 3.56 and 2.2–2 kyr BP). The statistical analysis of the samples’ geochemistry, by means of linear correlation and factor analysis, made it possible to differentiate two associations. The first is representative of an inherited mineralogy (REE-Y-Rb-Sr-Cs-Th-U-Hf-Al-Ti-Co-Cr-Sc); the second includes elements (Br-Na) linked to mineral formation under evaporite conditions (halite). The trace element geochemistry of sediments thus becomes an excellent tool to identify tsunamiites in the studied zone, especially those elements that are clear proxies for marine incursions (Na, Br, Sr) and high energy events (Hf, Ti). The parent area of the provenance of the materials is mainly of felsic composition.

The Doñana National Park is a Biosphere Reserve located within the estuary of the Guadalquivir River (SW Spain). It is mainly composed of extensive fluvio-tidal marshes partially protected by an elongated sandy spit. Three phases have been distinguished in the late Holocene evolution of this spit based on textural, geochemical, palaeontological and, chronological data recorded in a long core (31 m). Phase 1 (890 BCE-218 BCE) is characterized by the alternation of lagoonal silty sediments and slightly polluted marsh deposits, the latter with contamination from thousand-year-old mining. Phase 2 (218 BCE-90 CE) is characterized by several historical tsunamis, which caused the erosion of previous dune systems and the deposit of these sandy sediments on the adjacent bottom of the lagoon. Phase 3 (90 CE-Present) includes a regressive sequence (lagoonal bottommarsh-dune system), with the pollution of lagoonal sediments due to Roman mining activities., El Parque Nacional de Doñana es una Reserva de la Biosfera localizada dentro del estuario del río Guadalquivir (S.O. de España). Esta Reserva está formada principalmente por marismas fluvio-mareales parcialmente protegidas por una flecha arenosa alargada. Se han diferenciado tres fases en la evolución holocena tardía de esta flecha, con base en el análisis multidisciplinar (textura, geoquímica, paleontologíca, cronología) de un testigo largo (31 m). La fase 1 (890 BCE-218 BCE) se caracteriza por la alternancia de sedimentos lagunares limosos y depósitos de marisma levemente contaminados por metales pesados debido a una actividad minera milenaria. La fase 2 (218 BCE-90 CE) se distingue por la acción de varios tsunamis históricos, que causaron la erosión de sistemas dunares previos, así como el depósito de estos sedimentos arenosos sobre el fondo arcilloso de la laguna adyacente. La fase 3 (90 CE-actual) incluye una secuencia regresiva (laguna-marisma-sistema dunar) con una nueva contaminación de los sedimentos lagunares debido a las actividades mineras romanas.

The elemental content—mainly trace elements—of samples from two boreholes (PLN, CM) with evidence of tsunamiites, located in the Doñana National Park (SW Spain), were studied. The geochemical variations of the REE, LILE, HFSE, and other elements (Al, Ti, S, Na, Br, Sc, Co, Cr) were interpreted according to the mineralogy present in the samples. The results obtained show the geochemical complexity of the estuarine paleoenvironments, in this case with the existence of three Holocene-age tsunamigenic deposits (around 4.25, 3.56 and 2.2–2 kyr BP). The statistical analysis of the samples’ geochemistry, by means of linear correlation and factor analysis, made it possible to differentiate two associations. The first is representative of an inherited mineralogy (REE-Y-Rb-Sr-Cs-Th-U-Hf-Al-Ti-Co-Cr-Sc); the second includes elements (Br-Na) linked to mineral formation under evaporite conditions (halite). The trace element geochemistry of sediments thus becomes an excellent tool to identify tsunamiites in the studied zone, especially those elements that are clear proxies for marine incursions (Na, Br, Sr) and high energy events (Hf, Ti). The parent area of the provenance of the materials is mainly of felsic composition.

The Doñana National Park is a Biosphere Reserve located within the estuary of the Guadalquivir River (SW Spain). It is mainly composed of extensive fluvio-tidal marshes partially protected by an elongated sandy spit. Three phases have been distinguished in the late Holocene evolution of this spit based on textural, geochemical, palaeontological and, chronological data recorded in a long core (31 m). Phase 1 (890 BCE-218 BCE) is characterized by the alternation of lagoonal silty sediments and slightly polluted marsh deposits, the latter with contamination from thousand-year-old mining. Phase 2 (218 BCE-90 CE) is characterized by several historical tsunamis, which caused the erosion of previous dune systems and the deposit of these sandy sediments on the adjacent bottom of the lagoon. Phase 3 (90 CE-Present) includes a regressive sequence (lagoonal bottommarsh-dune system), with the pollution of lagoonal sediments due to Roman mining activities., El Parque Nacional de Doñana es una Reserva de la Biosfera localizada dentro del estuario del río Guadalquivir (S.O. de España). Esta Reserva está formada principalmente por marismas fluvio-mareales parcialmente protegidas por una flecha arenosa alargada. Se han diferenciado tres fases en la evolución holocena tardía de esta flecha, con base en el análisis multidisciplinar (textura, geoquímica, paleontologíca, cronología) de un testigo largo (31 m). La fase 1 (890 BCE-218 BCE) se caracteriza por la alternancia de sedimentos lagunares limosos y depósitos de marisma levemente contaminados por metales pesados debido a una actividad minera milenaria. La fase 2 (218 BCE-90 CE) se distingue por la acción de varios tsunamis históricos, que causaron la erosión de sistemas dunares previos, así como el depósito de estos sedimentos arenosos sobre el fondo arcilloso de la laguna adyacente. La fase 3 (90 CE-actual) incluye una secuencia regresiva (laguna-marisma-sistema dunar) con una nueva contaminación de los sedimentos lagunares debido a las actividades mineras romanas.

The elemental content—mainly trace elements—of samples from two boreholes (PLN, CM) with evidence of tsunamiites, located in the Doñana National Park (SW Spain), were studied. The geochemical variations of the REE, LILE, HFSE, and other elements (Al, Ti, S, Na, Br, Sc, Co, Cr) were interpreted according to the mineralogy present in the samples. The results obtained show the geochemical complexity of the estuarine paleoenvironments, in this case with the existence of three Holocene-age tsunamigenic deposits (around 4.25, 3.56 and 2.2–2 kyr BP). The statistical analysis of the samples’ geochemistry, by means of linear correlation and factor analysis, made it possible to differentiate two associations. The first is representative of an inherited mineralogy (REE-Y-Rb-Sr-Cs-Th-U-Hf-Al-Ti-Co-Cr-Sc); the second includes elements (Br-Na) linked to mineral formation under evaporite conditions (halite). The trace element geochemistry of sediments thus becomes an excellent tool to identify tsunamiites in the studied zone, especially those elements that are clear proxies for marine incursions (Na, Br, Sr) and high energy events (Hf, Ti). The parent area of the provenance of the materials is mainly of felsic composition.

A peloid’s liquid phase can be mineral, sea or salt-lake water. This study examines the interactions among three materials, two special clays (bentonite and sepiolite) and one common clay, and three chemically different mineral-medicinal waters. In all clay–water mixtures, the hardness and adhesiveness decreased with the amount of water in the mixture. For a given hardness or adhesiveness, sepiolite retained more water than the other clays, especially in the presence of sulphate-rich mineral-medicinal water (73%). In contrast, the common clay retained the least amount of water (26%), and the bentonite samples returned an intermediate value for the amount of retained water (52–53%). These differences had a strong influence on the thermal behaviour of the mixtures and, hence, should be taken into account for their use in thermotherapy applications. There were no significant differences in the instrumental texture of the clay pastes according to the predominant anion in the mineral-medicinal waters., Depto. de Radiología, Rehabilitación y Fisioterapia, Fac. de Medicina, TRUE, pub

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

A multidisciplinar analysis of sediments collected in different environments of the Doñana National Park (Guadalquivir estuary, SW Spain) provides an overview of the textural, mineralogical and physico-chemical parameters that control the distribution of benthic foraminifera in this Biosphere Reserve. These microorganisms are absent in the fine quartzitic sands that constitute the substrate of temporary ponds with brief hydroperiods located in the dune systems and spits, as well as in other ponds with low conductivities or hypersaline conditions located in the inner marshland or near the Guadalquivir river banks. Benthic foraminifera are mainly found on phyllosilicate-rich, silty-clayey substrates, where cluster analysis permits to delimitate six foraminiferal assemblages. Cluster II (Ammonia inflata + Haynesina germanica) is the dominant assemblage in the central ponds and the margins of the main channels, while cluster IV (Trochammina inflata + Entzia macrescens) is restricted to some ponds located on the high marsh and cluster VI (Ammonia beccarii + Quinqueloculina spp.) is abundant on external beaches. Tidal fluxes cause the transport of marine species both to the inner areas of the estuary and to these beaches.

This paper reviews the sedimentological and geomorphological imprints of prehistoric and historical tsunamis in the four main estuaries of SW Spain. These imprints include beach erosion, filling of intertidal channels, deposition of bioclastic layers, washover fans and reworked aeolian sheets and the breaching of spits and tombolos. Most of these imprints were caused by the 218-209. BC and AD. 1755 tsunamis, although evidence of other tsunamis has been identified. In these two events, effects on human populations were severe and diverse, such as human loss of life, changes in coastal settlements and international borders, damage to port infrastructure or flooding of marsh and inhabited areas. New radiocarbon reservoir data were included in order to obtain an approach to the recurrence period of these high-energy events (700-1000. years) in this area. © 2013 Elsevier B.V.

El estudio de los materiales geológicos y las asociaciones de ostrácodos presentes en un testigo largo obtenido en el sur del Parque Nacional de Doñana (SO de España) permite inferir una evolución paleoambiental desde medios marinos someros (Plioceno Inferior) hasta un lagoon salobre (Pleistoceno Superior-Holoceno) y la implantación de sistemas eólicos (<1.900 años BP), con un estadio intermedio aluvial durante la mayor parte del Pleistoceno. En el Holoceno Superior, se detecta un evento tsunami- génico caracterizado por la erosión de sedimentos eólicos y su depósito sobre medios submareales, The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (<1900 yr BP), with an intermediate alluvial stage during the Pleistocene. In the Late Holocene, a tsunamigenic event was detected, with the erosion of aeolian sediments and a subsequent deposit on subtidal environments

El estudio de los materiales geológicos y las asociaciones de ostrácodos presentes en un testigo largo obtenido en el sur del Parque Nacional de Doñana (SO de España) permite inferir una evolución paleoambiental desde medios marinos someros (Plioceno Inferior) hasta un lagoon salobre (Pleistoceno Superior-Holoceno) y la implantación de sistemas eólicos (<1.900 años BP), con un estadio intermedio aluvial durante la mayor parte del Pleistoceno. En el Holoceno Superior, se detecta un evento tsunami- génico caracterizado por la erosión de sedimentos eólicos y su depósito sobre medios submareales, The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (<1900 yr BP), with an intermediate alluvial stage during the Pleistocene. In the Late Holocene, a tsunamigenic event was detected, with the erosion of aeolian sediments and a subsequent deposit on subtidal environments

This paper reviews the sedimentological and geomorphological imprints of prehistoric and historical tsunamis in the four main estuaries of SW Spain. These imprints include beach erosion, filling of intertidal channels, deposition of bioclastic layers, washover fans and reworked aeolian sheets and the breaching of spits and tombolos. Most of these imprints were caused by the 218-209. BC and AD. 1755 tsunamis, although evidence of other tsunamis has been identified. In these two events, effects on human populations were severe and diverse, such as human loss of life, changes in coastal settlements and international borders, damage to port infrastructure or flooding of marsh and inhabited areas. New radiocarbon reservoir data were included in order to obtain an approach to the recurrence period of these high-energy events (700-1000. years) in this area.

This paper reviews the sedimentological and geomorphological imprints of prehistoric and historical tsunamis in the four main estuaries of SW Spain. These imprints include beach erosion, filling of intertidal channels, deposition of bioclastic layers, washover fans and reworked aeolian sheets and the breaching of spits and tombolos. Most of these imprints were caused by the 218-209. BC and AD. 1755 tsunamis, although evidence of other tsunamis has been identified. In these two events, effects on human populations were severe and diverse, such as human loss of life, changes in coastal settlements and international borders, damage to port infrastructure or flooding of marsh and inhabited areas. New radiocarbon reservoir data were included in order to obtain an approach to the recurrence period of these high-energy events (700-1000. years) in this area.

El estudio de los materiales geológicos y las asociaciones de ostrácodos presentes en un testigo largo obtenido en el sur del Parque Nacional de Doñana (SO de España) permite inferir una evolución paleoambiental desde medios marinos someros (Plioceno Inferior) hasta un lagoon salobre (Pleistoceno Superior-Holoceno) y la implantación de sistemas eólicos (<1.900 años BP), con un estadio intermedio aluvial durante la mayor parte del Pleistoceno. En el Holoceno Superior, se detecta un evento tsunami- génico caracterizado por la erosión de sedimentos eólicos y su depósito sobre medios submareales, The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (<1900 yr BP), with an intermediate alluvial stage during the Pleistocene. In the Late Holocene, a tsunamigenic event was detected, with the erosion of aeolian sediments and a subsequent deposit on subtidal environments

El estudio de los materiales geológicos y las asociaciones de ostrácodos presentes en un testigo largo obtenido en el sur del Parque Nacional de Doñana (SO de España) permite inferir una evolución paleoambiental desde medios marinos someros (Plioceno Inferior) hasta un lagoon salobre (Pleistoceno Superior-Holoceno) y la implantación de sistemas eólicos (<1.900 años BP), con un estadio intermedio aluvial durante la mayor parte del Pleistoceno. En el Holoceno Superior, se detecta un evento tsunami- génico caracterizado por la erosión de sedimentos eólicos y su depósito sobre medios submareales, The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (<1900 yr BP), with an intermediate alluvial stage during the Pleistocene. In the Late Holocene, a tsunamigenic event was detected, with the erosion of aeolian sediments and a subsequent deposit on subtidal environments

This paper reviews the sedimentological and geomorphological imprints of prehistoric and historical tsunamis in the four main estuaries of SW Spain. These imprints include beach erosion, filling of intertidal channels, deposition of bioclastic layers, washover fans and reworked aeolian sheets and the breaching of spits and tombolos. Most of these imprints were caused by the 218-209. BC and AD. 1755 tsunamis, although evidence of other tsunamis has been identified. In these two events, effects on human populations were severe and diverse, such as human loss of life, changes in coastal settlements and international borders, damage to port infrastructure or flooding of marsh and inhabited areas. New radiocarbon reservoir data were included in order to obtain an approach to the recurrence period of these high-energy events (700-1000. years) in this area.

Depto. de Mineralogía y Petrología, Fac. de Ciencias Geológicas, TRUE, pub

[ES] La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto, EN] Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., [IT] l corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

España presenta diversos yacimientos de sepiolita, entre los que destacan por sus reservas y calidad los existentes en la Cuenca de Madrid (Galán y Castillo, 1984). De acuerdo con estos autores, la sepiolita se presenta en la Cuenca de Madrid en dos tipos principales de yacimientos, unos ligado a las facies distales de abanicos aluviales (tipo Vicálvaro-Cabañas de la Sagra) y otros asociado a condiciones palustres (tipo Cerro de los Batallones).

[ES] La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto, EN] Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., [IT] l corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

[ES] La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto, EN] Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., [IT] l corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

[ES] La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto, EN] Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., [IT] l corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

España presenta diversos yacimientos de sepiolita, entre los que destacan por sus reservas y calidad los existentes en la Cuenca de Madrid (Galán y Castillo, 1984). De acuerdo con estos autores, la sepiolita se presenta en la Cuenca de Madrid en dos tipos principales de yacimientos, unos ligado a las facies distales de abanicos aluviales (tipo Vicálvaro-Cabañas de la Sagra) y otros asociado a condiciones palustres (tipo Cerro de los Batallones).

España presenta diversos yacimientos de sepiolita, entre los que destacan por sus reservas y calidad los existentes en la Cuenca de Madrid (Galán y Castillo, 1984). De acuerdo con estos autores, la sepiolita se presenta en la Cuenca de Madrid en dos tipos principales de yacimientos, unos ligado a las facies distales de abanicos aluviales (tipo Vicálvaro-Cabañas de la Sagra) y otros asociado a condiciones palustres (tipo Cerro de los Batallones).

España presenta diversos yacimientos de sepiolita, entre los que destacan por sus reservas y calidad los existentes en la Cuenca de Madrid (Galán y Castillo, 1984). De acuerdo con estos autores, la sepiolita se presenta en la Cuenca de Madrid en dos tipos principales de yacimientos, unos ligado a las facies distales de abanicos aluviales (tipo Vicálvaro-Cabañas de la Sagra) y otros asociado a condiciones palustres (tipo Cerro de los Batallones).

La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto., Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., Il corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto., Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., Il corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto., Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., Il corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto., Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., Il corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

La asignatura de Cultivos Celulares impartida en la Licenciatura de Biología de la Universidad de Sevilla, proporciona a los alumnos información teórica y práctica en esta materia. El gran avance tecnológico de los cultivos celulares aconseja complementar la información. Para ello hemos realizado una actividad formativa que ha permitido a profesionales procedentes de otras universidades o empresas, proporcionar de forma directa y sin desplazarse, conocimientos sobre las técnicas más innovadoras en cultivos celulares. Se han realizado dos conferencias a distancia mediante el uso de la herramienta Wimba Classroom. Se evaluó el grado de comprensión de las conferencias por parte de los alumnos mediante las herramientas tarea y examen de WebCT, así como la posible repercusión en la nota final. Los resultados obtenidos mostraron un incremento en el número de aprobados y de presentados a examen en el grupo experimental con respecto al control, así como un aumento de la nota media obtenida (5,92 frente a 4,01). Los alumnos evaluaron distintos aspectos de la actividad mediante encuestas a través de la plataforma, en las cuales se obtuvo un grado de valoración de la misma muy positivo. Los resultados indican que el uso de Wimba Classroom es adecuado para el objetivo propuesto., Cell Cultures is a subject included in the Biologist Degree at Sevilla University, that provides theoretical and practical information in this area. Due to the quick technological development in this field, we consider that is important to contribute complementary information to students who are cursing this subject. By means of the present project, specialists from biotechnological companies, who directly use and work with cell cultures, have provided lectures about different innovative applications in this area. The conferences have been carried out without the physical presence of the speakers by the use of the Wimba Classroom online tool. The level of understanding of the conferences was tested by means of WebCT evaluation tools, and the possible impact in the final califications got by students was analized. The results show that the the group of students that actively participated in the activity got higher final calification than the group who did not participate (5,92 and 4,01 respectively). Students could evaluate different aspects of the activity by answering a WebCT survey online. The results show that Wimba Classroom is adequate for this purpose and that evaluation of the formative activity by students is quite positive., Il corso Colture Cellulari impartito nel corso di Laurea in Biologia dell’Università di Siviglia, fornisce agli alunni informazioni teoriche e pratiche su questa materia. Il grande progresso tecnologico delle colture cellulari suggerisce di ampliare l’offerta formativa. Per questo motivo abbiamo realizzato un’attività formativa che ha permesso a professionisti provenienti da altre Università o imprese, di fornire in forma diretta e senza bisogno di lezioni in presenza, conoscenze sulle tecniche più innovatrici nella coltivazione cellulare. Sono state realizzate due conferenze a distanza mediante l’uso dello strumento Aula Virtuale. È stato valutato il grado di comprensione delle conferenze da parte degli alunni per mezzo dello strumento compito e esame del WEbCT, così come è stata valutata la possibile ripercussione sul voto finale. I risultati ottenuti mostrano un incremento nel numero dei promossi e di coloro i quali si sono presentati all’esame nel gruppo sperimentale rispetto al gruppo controllo, così come l’aumento del voto medio ottenuto (5,92 su 4,01). Gli alunni hanno valutato diversi aspetti dell’attività mediante questionari forniti dalla piattaforma, nei quali si è ottenuto un livello di valutazione molto positivo della stessa. I risultati indicano che l’uso dell’Aula Virtuale è adeguato all’obiettivo proposto.

Se evalúan la variabilidad espacial de los aportes de biomasa y nutrientes en el desfronde de dos quercíneas (Q. suber y Q. canariensis) a tres escalas diferentes: bajo la copa del mismo árbol, rodal y regional. La variabilidad se cuantifica usando el Coeficiente de Variación. Se analiza, además, la relación entre la variabilidad de la composición mineral de la hoja del desfronde y la de la heterogeneidad de nutrientes disponibles en el suelo. La variabilidad de los aportes de biomasa de desfronde aumenta con la escala espacial y es, en general, más elevada para Q. suber. La heterogeneidad en el contenido en nutrientes del desfronde depende del elemento, estando K y Fe entre los elementos más variables. Q. canariensis muestra una mayor variabilidad en sus contenidos minerales que aumenta con la escala espacial. Elementos como el P o el K muestran valores de heterogeneidad similares en el suelo y el desfronde, indicando una posible relación directa entre ellos. Otros, como el Zn y Cu, son altamente variables en el suelo, por lo que su heterogeneidad se debe mayormente a otros factores además del desfronde.