188 research outputs found
Tarraco, la primera capital
Sense cap mena de dubte, Tarraco constituí la porta d'entrada de Roma a la península Ibèrica i va ser una ciutat imprescindible per a la
comprensió de l'evolució històrica i ideològica del nostre passat clàssic. Encara avui, l'actual Tarragona esdevé una font de coneixement
que constantment proporciona noves dades i interrogants científics. Aquest document aporta una visió de conjunt sobre l'estat
actual de la recerca incidint en les noves descobertes i reflectint les oportunitats que les noves tecnologies ofereixen en la configuració
d'una nova recerca arqueològica, a cavall del coneixement humanístic i de l'experimentació analítica
Excavaciones Arqueológicas en la catedral de Tarragona (2000-2002)
The Tarragona Cathedral Director Plan is an ambitious scheme for conservation and restoration work to be carried out on this city landmark. Works include the historical and archaeological study of the property, all the more interesting for the cathedral’s position on one of the terraces of the imperial complex of the <i>Consilium Prouinciae Hispaniae Citerioris</i>, where in late antiquity the Visigoth episcopacy was established. This area was recovered during the restoration of the archiepiscopal see in the 12th century, and is the origin of the present ecclesiastical see. This article is a first approach to the architectural evolution of an area of the Cathedral of Tarragona, the north of the cloister, which it has been possible to study with the help of economic investment derived from the agreement between the chapter of Tarragona Cathedral, the city council, the county council, the regional council of Tarragona and the Catalan autonomous government.<br><br>El Plan Director de la Catedral de Tarragona es una ambiciosa programación de los trabajos de conservación-restauración que se han de llevar a cabo en este monumento de la ciudad. Entre éstos está el estudio histórico y arqueológico del conjunto, más cuando la catedral se asienta sobre una de las terrazas del complejo imperial del <i>Concilium Prouinciae Hispaniae Citerioris</i>, donde en la antigüedad tardía se estableció el episcopio visigótico. Este espacio se recupera tras la restauración efectiva de la sede arzobispal, en el siglo XII, y es el germen de la actual sede eclesiástica. Este artículo es una primera aproximación a la evolución arquitectónica de una zona de la catedral de Tarragona, al norte del claustro, que se ha podido estudiar gracias a la inversión económica derivada del convenio entre el Cabildo de la Catedral de Tarragona, Ayuntamiento, Diputación, Consell Comarcal del Tarragonès y Generalitat de Catalunya
Excavaciones Arqueológicas en la catedral de Tarragona (2000-2002)
The Tarragona Cathedral Director Plan is an ambitious scheme for conservation and restoration work to be carried out on this city landmark. Works include the historical and archaeological study of the property, all the more interesting for the cathedral’s position on one of the terraces of the imperial complex of the Consilium Prouinciae Hispaniae Citerioris, where in late antiquity the Visigoth episcopacy was established. This area was recovered during the restoration of the archiepiscopal see in the 12th century, and is the origin of the present ecclesiastical see. This article is a first approach to the architectural evolution of an area of the Cathedral of Tarragona, the north of the cloister, which it has been possible to study with the help of economic investment derived from the agreement between the chapter of Tarragona Cathedral, the city council, the county council, the regional council of Tarragona and the Catalan autonomous government.El Plan Director de la Catedral de Tarragona es una ambiciosa programación de los trabajos de conservación-restauración que se han de llevar a cabo en este monumento de la ciudad. Entre éstos está el estudio histórico y arqueológico del conjunto, más cuando la catedral se asienta sobre una de las terrazas del complejo imperial del Concilium Prouinciae Hispaniae Citerioris, donde en la antigüedad tardía se estableció el episcopio visigótico. Este espacio se recupera tras la restauración efectiva de la sede arzobispal, en el siglo XII, y es el germen de la actual sede eclesiástica. Este artículo es una primera aproximación a la evolución arquitectónica de una zona de la catedral de Tarragona, al norte del claustro, que se ha podido estudiar gracias a la inversión económica derivada del convenio entre el Cabildo de la Catedral de Tarragona, Ayuntamiento, Diputación, Consell Comarcal del Tarragonès y Generalitat de Catalunya
Historia y arqueología de dos ciudades en los siglos VI-VIII d.C. Valentia y Valencia la Vella
An intense constructive activity was developed in certain places and times in Valentia and around between the 6th and 8th centuries. The construction of the monumental episcopal center in the first half of the 6th century changed the urban landscape. The new buildings (cathedral, baptistery, mausoleum and others) continuously and selectively used a large number of Roman elements. The Circus arena was urbanized from the second half of the 6th century until the middle of the 7th. These findings are small excavations. There are a lot of walls but they do not allow to identify any building. Anyway, they attest the continuity in the reuse of Roman materials. This area had less entity than the Episcopal area. In both cases, the supply of the reused material would be from the remains of the old Roman town. Archaeological materials have a significant proportion of Eastern and African imports.Valencia la Vella, a new and very important fortified settlement of 5 hectares, emerged at the end of the 6th century. The site is 16 km away from Valentia on the Turia river. This new city was made ex novo, so it was necessary a great building effort. In addition to the large walled enclosure two public buildings have been located in the lower part and another in the citadel. This site must have been the center of power in Carthaginensis province.Valencia la Vella was abandoned in the late 7th or early 8th centuries. Contemporarily another important power center was created in Pla de Nadal, about 2 km. from Valencia la Vella. Probably the recently disappeared site would be used as a quarry.En Valentia y su entorno se registró una intensa actividad constructiva en determinados lugares y momentos entre los siglos VI y VIII. La construcción del monumental centro episcopal en la primera mitad del s. VI, iniciativa del obispo Justiniano, cambió el paisaje urbano. En sus edificios (catedral, baptisterio, mausoleo y otros) se aprecia el uso continuado, pero selectivo y diferenciado, según cada uno de los conjuntos, de gran cantidad de elementos romanos. A partir de mediados del s. VI la actividad edilicia en Valentia decayó. Lo único a destacar es que se urbanizó la arena del Circo, un amplio espacio de 70 por 350 metros. Estos hallazgos se conocen peor, por ser excavaciones de poca extensión que no permiten identificar ningún edificio entre los muros aparecidos, pero sí que atestiguan un proyecto constructivo unitario, aunque de menor entidad que en la zona episcopal. Los materiales arqueológicos presentan una importante proporción de importaciones orientales y africanas.A finales del s. VI, a 16 km. de Valentia surgió un nuevo asentamiento fortificado de cierta extensión, 5 hectáreas, València la Vella. Su construcción, ex novo, supuso un gran esfuerzo edilicio. Además del gran recinto amurallado se han localizado dos edificios públicos en la parte baja y otro en la ciudadela. Debió ser el centro del poder de la provincia Carthaginensis.El yacimiento se abandonó a finales del s. VII o inicios del VIII. Al mismo tiempo, se creó otro centro monumental, el importante centro de poder de Pla de Nadal, a unos 2 km. de València la Vella. Su elemento más notorio fue el gran palacio de patio central, pero los diversos edificios que van apareciendo a su alrededor, indican que sería un complejo aún por delimitar
Non-invasive Geophysical Surveys in Search of the Roman Temple of Augustus Under the Cathedral of Tarragona (Catalonia, Spain): A Case Study
An integrated geophysical survey has been conducted at the Tarragona's Cathedral (Catalonia, NE Spain) with the aim to confirm the potential occurrence of archaeological remains of the Roman Temple dedicated to the Emperor Augustus. Many hypotheses have been proposed about its possible location, the last ones regarding the inner part of the Cathedral, which is one of the most renowned temples of Spain (twelfth century) evolving from Romanesque to Gothic styles. A geophysical project including electrical resistivity tomography (ERT) and ground probing radar (GPR) was planned over 1 year considering the administrative and logistic difficulties of such a project inside a cathedral of religious veneration. Finally, both ERT and GPR have been conducted during a week of intensive overnight surveys that provided detailed information on subsurface existing structures. The ERT method has been applied using different techniques and arrays, ranging from standard Wenner-Schlumberger 2D sections to full 3D electrical imaging with the advanced Maximum Yield Grid array. Electrical resistivity data were recorded extensively, making available many thousands of apparent resistivity data to obtain a complete 3D image after a full inversion. In conclusion, some significant buried structures have been revealed providing conclusive information for archaeologists. GPR results provided additional information about shallowest structures. The geophysical results were clear enough to persuade religious authorities and archaeologists to conduct selected excavations in the most promising areas that confirmed the interpretation of geophysical data. In conclusion, the significant buried structures revealed by geophysical methods under the cathedral were confirmed by archaeological digging as the basement of the impressive Roman Temple that headed the Provincial Forum of Tarraco, seat of the Concilium of Hispania Citerior Province
A la recerca del temple d'August a Tarragona: una experiència entre arqueologia i geofísica
La catedral de Tarragona està enclavada en l'espai més elevat de la ciutat. Els romans ocuparen aquest indret a partir de final del segle III aC i el convertiren en el campament militar des d'on iniciaren, a la Península, les lluites contra els cartaginesos, comandats per Anníbal. Tarraco fou punt d'arribada de les tropes que iniciaren la conquesta d'Iberia. En temps de l'emperador August Tarraco fou elevada a la categoria de capital de la Provincia Hispania Citerior i s'hi inicià una sèrie de transformacions urbanístiques d'acord amb el nou rang. És així que l'historiador Tàcit esmenta que l'any 15 dC una representació de tarraconenses van demanar a Tiberi autorització per aixecar un temple de culte al seu antecessor August, que podia haver estat el primer que se li dedicà fora de Roma. Així ens ho indiquen les fonts clàssiques: in omnes provincias exemplum. Finalment, l'epigrafia ens parla de l'existència del Concilium Prouinciae Hispaniae Citerioris, el màxim òrgan provincial. La major part d'estudis arqueològics que s'han desenvolupat fins ara coincideixen a ubicar el temple augustal a l'acròpolis de la ciutat, l'espai actualment ocupat per la catedral medieval de Tarragona
The EU Center of Excellence for Exascale in Solid Earth (ChEESE): Implementation, results, and roadmap for the second phase
The EU Center of Excellence for Exascale in Solid Earth (ChEESE) develops exascale transition capabilities in the domain of Solid Earth, an area of geophysics rich in computational challenges embracing different approaches to exascale (capability, capacity, and urgent computing). The first implementation phase of the project (ChEESE-1P; 2018¿2022) addressed scientific and technical computational challenges in seismology, tsunami science, volcanology, and magnetohydrodynamics, in order to understand the phenomena, anticipate the impact of natural disasters, and contribute to risk management. The project initiated the optimisation of 10 community flagship codes for the upcoming exascale systems and implemented 12 Pilot Demonstrators that combine the flagship codes with dedicated workflows in order to address the underlying capability and capacity computational challenges. Pilot Demonstrators reaching more mature Technology Readiness Levels (TRLs) were further enabled in operational service environments on critical aspects of geohazards such as long-term and short-term probabilistic hazard assessment, urgent computing, and early warning and probabilistic forecasting. Partnership and service co-design with members of the project Industry and User Board (IUB) leveraged the uptake of results across multiple research institutions, academia, industry, and public governance bodies (e.g. civil protection agencies). This article summarises the implementation strategy and the results from ChEESE-1P, outlining also the underpinning concepts and the roadmap for the on-going second project implementation phase (ChEESE-2P; 2023¿2026).This work has been funded by the European Union Horizon 2020 research and innovation program under the ChEESE project, Grant Agreemen
Clustering COVID-19 ARDS patients through the first days of ICU admission. An analysis of the CIBERESUCICOVID Cohort
Background Acute respiratory distress syndrome (ARDS) can be classified into sub-phenotypes according to different inflammatory/clinical status. Prognostic enrichment was achieved by grouping patients into hypoinflammatory or hyperinflammatory sub-phenotypes, even though the time of analysis may change the classification according to treatment response or disease evolution. We aimed to evaluate when patients can be clustered in more than 1 group, and how they may change the clustering of patients using data of baseline or day 3, and the prognosis of patients according to their evolution by changing or not the cluster.Methods Multicenter, observational prospective, and retrospective study of patients admitted due to ARDS related to COVID-19 infection in Spain. Patients were grouped according to a clustering mixed-type data algorithm (k-prototypes) using continuous and categorical readily available variables at baseline and day 3.Results Of 6205 patients, 3743 (60%) were included in the study. According to silhouette analysis, patients were grouped in two clusters. At baseline, 1402 (37%) patients were included in cluster 1 and 2341(63%) in cluster 2. On day 3, 1557(42%) patients were included in cluster 1 and 2086 (57%) in cluster 2. The patients included in cluster 2 were older and more frequently hypertensive and had a higher prevalence of shock, organ dysfunction, inflammatory biomarkers, and worst respiratory indexes at both time points. The 90-day mortality was higher in cluster 2 at both clustering processes (43.8% [n = 1025] versus 27.3% [n = 383] at baseline, and 49% [n = 1023] versus 20.6% [n = 321] on day 3). Four hundred and fifty-eight (33%) patients clustered in the first group were clustered in the second group on day 3. In contrast, 638 (27%) patients clustered in the second group were clustered in the first group on day 3.Conclusions During the first days, patients can be clustered into two groups and the process of clustering patients may change as they continue to evolve. This means that despite a vast majority of patients remaining in the same cluster, a minority reaching 33% of patients analyzed may be re-categorized into different clusters based on their progress. Such changes can significantly impact their prognosis
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