Poblamiento y organización del espacio. La Tarraconense pirenaica en el siglo VI

ESPAÑOL: La donación y el testamento de Vicente de Asán, de los años 551 y 576 respectivamente, son dos documentos fundamentales para el conocimiento de la estructura de propiedad en el periodo visigodo. Estos documentos han sido objeto de estudio de la investigación especializada desde hace casi un siglo. Sin embargo, la localización exacta de los topónimos que en ellos figuran - fundamental para una plena comprensión de la estructura de las propiedades de Vicente -, era un aspecto pendiente de un análisis exhaustivo. El presente artículo aborda este problema, combinando el trabajo de campo arqueológico con la crítica histórica de los aspectos internos del documento, incorporando además el estudio de la documentación medieval, con el fin de rastrear la pervivencia de los topónimos del siglo VI en el periodo posterior. El trabajo ha permitido identificar con seguridad sobre el terreno aproximadamente el cincuenta por ciento de la toponimia menor, lo que habilita un análisis histórico de la forma en que Vicente de Asán tenía organizado su patrimonio. Su centro de intereses está claramente localizado en la zona del Pirineo oscense, en los valles de La Fueva y Boltaña, las antiguas terrae terrantonense y boletana del documento. Pero además, la larga gestión de un patrimonio familiar, ha dado lugar a la posesión de tierras a lo largo de los valles del Ésera y Cinca, alcanzando incluso el valle del Ebro, con propiedades en los territorios de Barbotum, Labitolosa, Ilerda y Caesaraugusta. De esta organización de las tierras se deduce una economía complementaría entre las zonas bajas de los valles de los grandes ríos y las zonas de montaña, lo cual permite una diversificación de los productos y un mejor aprovechamiento de los recursos. La ganadería se revela como un aspecto importante, pudiendo afirmarse que existe una trashumancia de corto recorrido para aprovechar la variación estacional. Además la restitución de la microtoponimia en el paisaje permite extraer otras conclusiones. Por un lado es posible definir con cierto detalle las fronteras entre los territorios urbanos que se mencionan en los textos. Por otro es posible detectar que las líneas de colonización interna de época medieval son continuadoras de las que tenemos documentadas en época visigoda. / ENGLISH: The donation and will of St. Vicente of Asán, dating from a. 551 and a. 576 respectively, are two basic documents when getting to know the property structure in the Visigothic period. These documents have been subjected to specialised research during nearly a century. However, the exact localization of the toponyms contained in them - a fundamental point for a full understanding of the structure of Vicente’s properties - was an unsolved question in their exhaustive analysis. This paper tackles on this problem, combining archaeological field work with the historical review of the inner aspects of the document, also including the study of the mediaeval documentation in order to trail the survival of VIth century toponyms in the subsequent period. This work has allowed us to identify with certainty and on the field approximately 50% of minor toponyms, which makes possible to carry out a historical analysis of the way in which Vicente of Asán had his patrimony organised. His centre of interest is clearly located in the Pyrenean area of Huesca, in La Fueva and Boltaña valleys (the ancient terrae terrantonensis and boletana of the document). But, in addition to this, the long lasting management of a family patrimony gave rise to the possession of land along the rivers Esera and Cinca valleys, reaching even the Ebro valley, with properties in the territories of Barbotum, Labitolosa, Ilerda and Caesaraugusta. From this land organisation we can infer a complementary economy between the lands on the valleys of the main rivers and the mountain areas, which allowed produce diversification and a better exploitation of resources. Cattle raising appears as an important aspect, and it can even be stated that it existed a short-distance transhumance which took advantage of seasonal variations. Furthermore, the restitution of landscape microtoponymy allows to extract other conclusions. On the one hand, it is possible to define with some detail the borders of the urban territories mentioned by the texts; on the other, it is possible to detect that the lines of inner colonisation of mediaeval times continued those documented for the Visigothic period

Valores antropométricos en niños con celiaquía diagnosticados precozmente

Peer Reviewe

Accuracy of implant casts generated with conventional and digital Impressions: an in vitro study

Purpose: The aim of this study was to compare the accuracy of digital dental impressions with the accuracy of impressions obtained via conventional techniques. Methods: Two different master models were created, one with parallel implants (model 1) and the other with non-parallel implants (model 2). These reference master models included 4 Klockner KL RP implants (Klockner Implant System SA, Barcelona, Spain), which were juxta-placed and equidistant in the intermentoneal region. In model 1 the implants were placed parallel to each other, whereas in model 2 the implants were placed such that there was a divergence angle of 15° between the more distal implants, and a convergence angle of 15° between the two central implants. A total of four types of impressions were obtained from model 1 (four groups, n = 10 each), including closed tray impressions with replacement abutments; open tray impression groups for dragging copings, without splinting; open tray impressions for ferrules; and impressions obtained using the 3MTM True Definition Scanner system. For model 2 three groups were created (three groups, n = 10 each), including closed tray impressions with replacement abutments; open tray impression for dragging copings, without splinting; and impressions obtained using the 3MTM True Definition Scanner system. The master models and the models obtained using conventional methods were digitalized in order to compare them via an extraoral high-resolution scanner (Imetric IScan D104i, Porretruy, Switzerland). The STL (Stereo Lithography (format for transferring 3 dimensional shape information)) digital values were loaded into reverse-engineering software and superimposed with their respective STL master models in order to evaluate deviations in three dimensions. We then analyzed the squares of the deviations in the three axes and evaluated the median and the sum of the deviation square. Statistical analysis was performed using the IBM Corp. Released 2016. IBM SPSS Statistics for Windows, Version 24.0. Armonk, NY: IBM Corp. The normality of the distributions was analyzed according to a Kolmogorov-Smirnov test. The median comparison was performed using the differences between the medians, analyzed using non-parametric Kruskal-Wallis and Mann-Whitney tests with a significance level of p < 0.05. Results: For model 1, the deviations of the digital impressions were smaller than those associated with the conventional techniques. The sum value in group D was 1,068,292, which was significantly lower than those of groups A, B, and C, which were shown to be 2,114,342, 2,165,491, and 1,265,918, respectively. This improvement was not observed when using model 2, however, where the conventional techniques yielded similar results. Group F simultaneously presented the lowest total square sum of the three deviations (1,257,835), indicating a significantly higher accuracy for this group in model 2, while the sum values were 1,660,975 and 1,489,328 for groups E and G, respectively. Conclusion: Digital impressions of full-arch models were able to achieve the accuracy of conventional impressions in an in vitro model. Nevertheless, further in vivo studies are needed to validate these in vitro results

DNA-barcoding revela la existencia de un posible nuevo género del complejo Laurencia (Rodophyta, Ceramiales) en las islas Canarias

XIX Simposio de Botánica Criptogámica, Las Palmas de Gran Canaria, 24-28 de junio de 2013.Basado en análisis morfológicos y moleculares, en la actualidad el complejo Laurencia (Rhodophyta, Ceramiales) incluye seis géneros (Chondrophycus, Laurencia, Laurenciella, Osmundea, Palisada y Yuzurua). El objetivo principal de este estudio preliminar es valorar a nivel molecular la posible existencia de un nuevo género dentro del complejo Laurencia presente en las Islas Canarias, así como establecer posibles relaciones filogenéticas entre éste y otros taxones del complejo citados en la Macaronesia

A DNA barcode approach of the Laurencia complex (Ceramiales, Rodophyta) in the tropical and subtropical Atlantic ocean

10th International Phycological Congress, Orlando, Florida, USA, 4-10 de agosto 2013.The diversity of the Laurencia complex is being assessed in tropical and subtropical Atlantic by an international cooperation project involving Brazil, Mexico, Spain (Canary Islands), Portugal (Azores and Madeira) and USA (Florida) on the base of molecular data allied to a detailed morphological study of species. The diversity of the complex was analyzed for the first time for the Atlantic Ocean, including specimens from all five localities, using the plastid 23S rRNA gene (UPA) which has been investigated as potential DNA Barcode marker for photosynthetic eukaryotes. The mitochondrial cytochrome c oxidase I gene (COI-5P) was also used as DNA barcode for the same set of species, and the rbcL gene was used for phylogenetic inferences. The range of genetic variation was compared for the three markers. The UPA proved to be more conserved; however, the same genetic groups were resolved with each of the three markers confirming the six genera currently established for the complex: Chondrophycus, Laurencia, Laurenciella, Palisada, Osmundea and Yuzurua

A molecular perspective of the Laurencia complex (Ceramiales, Rhodophyta) in Macaronesia region

IV Congress of Marine Sciences. Las Palmas de Gran Canaria, June 11th to 13th 2014.In the present study, we undertook an integrative approach, using molecular data to assess the diversity of the Laurencia complex in Macaronesian islands (Azores, Madeira and Canary Islands) where speciation events are supposedly common leading to a high endemism. Identification of species of the Laurencia complex based on anatomical and morphological characters is extremely difficult due to phenotypic plasticity and overlaps in many morphological characters. As a consequence, among the 28 species reported so far from these Macaronesian archipelagos, 14 species records have been regarded as doubtful. We used DNA barcode data (mitochondrial COI gene and partial nuclear LSU marker) as a tool for species delimitation. A third marker (rbcL gene) was also studied and phylogenetic analyses were carried out using the three independent markers as well as the combined data set, in the aim to infer the phylogenetic relationships and biogeographic affinities of members of the complex from Macaronesia. Our results proved the usefulness of the DNA barcode markers for uncovering several putative new species of the Laurencia complex in Macaronesia and phylogenetic results revealed the existence of a potential new genus present in Canary Islands, which adds to the six pre-existing genera: Laurencia, Osmundea, Chondrophycus, Palisada, Yuzurua and Laurenciella