Search results for "Cartography"
showing 10 items of 539 documents
Seeing Multivariate Data
2011
Automated facies identification by Direct Push-based sensing methods (CPT, HPT) and multivariate linear discriminant analysis to decipher geomorpholo…
2021
In ad 1362, a major storm surge drowned wide areas of cultivated medieval marshland along the north‐western coast of Germany and turned them into tidal flats. This study presents a new methodological approach for the reconstruction of changing coastal landscapes developed from a study site in the Wadden Sea of North Frisia. Initially, we deciphered long‐term as well as event‐related short‐term geomorphological changes, using a geoscientific standard approach of vibracoring, analyses of sedimentary, geochemical and microfaunal palaeoenvironmental parameters and radiocarbon dating. In a next step, Direct Push (DP)‐based Cone Penetration Testing (CPT) and the Hydraulic Profiling Tool (HPT) wer…
La opinión pública ante la vigilancia masiva de datos. El difícil equilibrio entre acceso a la información y seguridad nacional
2015
RESUMEN: La transparencia y el acceso a la información convierten a la sociedad en una participante activa del proceso de rendición de cuentas de los poderes públicos. Pero, esa libertad informativa tiene límites, como lo es el secreto que necesariamente impone, en la mayor parte de las ocasiones, la salvaguarda de la seguridad nacional. El secreto - y por lo tanto, la excepción a la regla general de la publicidad- tiene como misión impedir que se conozcan ciertas actividades de inteligencia, que recaban y tratan información con la finalidad de garantizar el éxito de determinadas acciones de los servicios de inteligencia-defensa o de prevenir riesgos. En este trabajo se aborda la difícil co…
Analisi della naturalità del mosaico territoriale in Sicilia
2009
A new index (NEI - Naturalness Evaluation Index) is applied in order to evaluate the landscape degree of conservation and naturalness. Land mosaic has been classified into four different levels of conservation, taking into account the relative influence of natural processes and anthropic activities. Fitocoenoses structure and floristic composition are used as indicators. As a case study Sicily (Italy) was chosen. The methodology has been applied to reclassify Corine Land Cover data and obtain a Naturalness map. The area of study has been divided into reference units (municipalities) and the index has been calculated for each land unit. The index has proved to be very useful for visualising …
Non-parametric spectrum cartography using adaptive radial basis functions
2017
This paper presents a framework for spectrum cartography based on the use of adaptive Gaussian radial basis functions (RBF) centered around a specific number of centroid locations, which are determined, jointly with the other RBF parameters, by the available measurement values at given sensor locations in a specific geographical area. The spectrum map is constructed non-parametrically as no prior knowledge about the transmitters is assumed. The received signal power at each location (over a given bandwidth and time period) is estimated as a weighted contribution from different RBF, in such a way that the both RBF parameters and the weights are jointly optimized using an alternating minimiza…
Types of climates on continental France, a spatial construction
2010
Le climat est un élément important de la vie des territoires car il conditionne le comportement et les décisions des individus et des groupes sociaux comme celui de l’ensemble des espèces vivantes et des écosystèmes. A ce titre, la différenciation de l’espace selon les climats et les aptitudes qui en résultent est un domaine qui mérite d’être réinvesti par la recherche en mettant à profit des moyens de traitement modernes de l’information. Avec cet objectif en vue, les auteurs proposent une approche spatiale de définition des climats. Partant des mesures stationnelles de précipitation et de température mises à disposition par Météo-France, un jeu de 14 variables intégrant une série temporel…
Predicting the environmental suitability for onchocerciasis in Africa as an aid to elimination planning
2021
Recent evidence suggests that, in some foci, elimination of onchocerciasis from Africa may be feasible with mass drug administration (MDA) of ivermectin. To achieve continental elimination of transmission, mapping surveys will need to be conducted across all implementation units (IUs) for which endemicity status is currently unknown. Using boosted regression tree models with optimised hyperparameter selection, we estimated environmental suitability for onchocerciasis at the 5 × 5-km resolution across Africa. In order to classify IUs that include locations that are environmentally suitable, we used receiver operating characteristic (ROC) analysis to identify an optimal threshold for suitabil…
Viaje y memoria en La piel del cielo
2016
En la novela La piel del cielo (2001), Elena Poniatowska forja la imagen singular de la memoria del desarrollo de la astronomia y de la astrofisica en nuestro pais, enlazada a otra memoria: la del conocimiento ancestral y empirico presente en vastas regiones de Mexico y que, via la oralidad y el juego, son transmitidos por una madre cuyo unico anhelo es que sus hijos aprendan. Asimismo, son recreados algunos de los diversos sentidos que adquiere el viaje, entre ellos: el del transito hacia el conocimiento cientifico y el del encuentro con uno mismo; porque ?que otro sentido puede tener ir al encuentro de una estrella que no sea el de ir al encuentro de nosotros mismos? In her novel La piel …
Nuevas fórmulas publicitarias: los advergames como herramienta de las comunicaciones de marketing
2012
Los advergames son videojuegos orientados a la comunicación publicitaria. Su naturaleza de mensaje híbrido, al combinar contenido publicitario y contenido de entretenimiento, aporta interesantes posibilidades al desarrollo de comunicaciones de marketing en un entorno mediático en el que la publicidad tradicional ha ido perdiendo eficacia. El presente artículo delimita el concepto de advergame, analizando las diferentes tipologías existentes y sus efectos sobre diversos objetivos de marketing y de comunicación. Asimismo, se apuntan algunas recomendaciones a la hora de desarrollar comunicaciones de marketing mediante advergames, así como las cuestiones éticas y morales que deben considerarse
Ingegneri militari nella Sicilia degli Asburgo: formazione, competenze e carriera di una figura professionale tra Cinque e Seicento
2015
During the Sixteenth century and the first half of the following one, Sicily played a key role in the strategy of defense of the Spanish Empire from the looming Turkish threat, being an island considered as a baluarte against the Turks. Yet despite this absolute centrality in the military policy of the Spanish monarchy, till now historical research has preferred to provide broader spectrum interpretations at the expense of in-depth studies on individual technicians or overall pictures about the figure of the military engineer. We will present a synoptic view attesting the time period of activity covered by each military technician working for the kingdom of Sicily, within a wider study conc…