In-loop Feature Tracking for Structure and Motion with Out-of-core Optimization

In this paper, a novel and approach for obtaining 3D models from video sequences captured with hand-held cameras is addressed. We define a pipeline that robustly deals with different types of sequences and acquiring devices. Our system follows a divide and conquer approach: after a frame decimation that pre-conditions the input sequence, the video is split into short-length clips. This allows to parallelize the reconstruction step which translates into a reduction in the amount of computational resources required. The short length of the clips allows an intensive search for the best solution at each step of reconstruction which robustifies the system. The process of feature tracking is embedded within the reconstruction loop for each clip as opposed to other approaches. A final registration step, merges all the processed clips to the same coordinate fram

El episcopologio medieval gaditano. Siglos XIII al XV.

Sin resume

Los centros de estudio y la enseñanza en Sevilla durante el siglo XV.

Sin resume

La literatura catequética en la Península Ibérica, 1236 - 1553.

Sin resume

Physical properties of voltage gated pores

Experiments on single ionic channels have contributed to a large extent to our current view on the function of cell membrane. In these experiments the main observables are the physical quantities: ionic concentration, membrane electrostatic potential and ionic fluxes, all of them presenting large fluctuations. The classical theory of Goldman–Hodking–Katz assumes that an open channel can be well described by a physical pore where ions follow statistical physics. Nevertheless real molecular channels are active pores with open and close dynamical states. By skipping the molecular complexity of real channels, here we present the internal structure and calibration of two active pore models. These models present a minimum set of degrees of freedom, specifically ion positions and gate states, which follow Langevin equations constructed from a unique potential energy functional and by using standard rules of statistical physics. Numerical simulations of both models are implemented and the results show that they have dynamical properties very close to those observed in experiments of Na and K molecular channels. In particular a significant effect of the external ion concentration on gating dynamics is predicted, which is consistent with previous experimental observations. This approach can be extended to other channel types with more specific phenomenology.Peer ReviewedPostprint (published version

Cómo surgen los conectores: los reformuladores id est, esto es, es decir

[Resumo] No ámbito dos denominados marcadores do discurso (entre eles, os conectores) escasean os traballos diacrónicos. Parece razoable pensar que, se coñecemos como xorden e co- Abstracts / Resúmenes / Resumos mo se desenvolven estas unidades, comprenderemos mellor o seu funcionamento actual. De todos os conectores reformulativos estudamos tres: es decir, esto es e id est. O primeiro é o máis empregado, o segundo está restrinxido á lingua escrita e o último é a versión latina de escasa, mais ininterrumpida, presenza en español.[Resumen] En el ámbito de los llamados marcadores del discurso (entre ellos, los conectores) escasean los trabajos diacrónicos. Parece razonable pensar que, si conocemos cómo surgen y cómo se desarrollan estas unidades, comprenderemos mejor su funcionamiento actual. De todos los conectores reformulativos estudiamos tres: es decir, esto es e id est. El primero es el más utilizado, el segundo está restringido a la lengua escrita y el último es la versión latina de escasa, pero ininterrumpida, presencia en español.[Abstract] Of all the studies on the subject of discourse markers (which include connectors), very few have have been diachronic in nature. It seems reasonable to assume that if we knew more about their origin and development, we would better understand how they operate in contemporary Spanish. We have chosen to study three of these reformulative connectors: es decir, esto es, and id est. The first one is the most widely used; the second is used only in written Spanish ; and the last one is the Latin equivalent, which in current Spanish is used very sparsely, though incessantly

La mujer sin nombre, La Cenicienta china y Amo los dólares

Quinzenes Jornades de Foment de la Investigació de la FCHS (Any 2009-2010

El habla de Santibáñez de la Sierra (Salamanca): notas léxicas

Este trabajo pretende ser un resumen de las características más significativas de la expresión de un pueblo situado en el sur de la provincia de Salamanca, muy cerca de la frontera con Extremadura. Las características del español vulgar se mezclan con algunos restos del dialecto leonés y con ciertas características (fundamentalmente fonéticas) típicas de las regiones del sur, (por ejemplo: tanto la aspiración de la velar fricativa sorda y la implosiva / s / implicaría un claro contraste con el discurso del resto de la provincia y de la región). Las características fonéticas y morfológicas se describen muy brevemente. Por otro lado, el estudio sobre el léxico es la prioridad y la contribución principal. Hay una selección de palabras que pueden ser importantes por diferentes razones: ya sea por su originalidad (no hay evidencia documental de algunos de ellos), o debido a su rareza: el léxico dialectal, como una "variación" diatópica, es todavía significativa en el estudio de los cambios lingüísticos.This work is meant to be a summary of the most significant characteristics of the speech of a village located in the south of the province of Salamanca, very close to the border with Extremadura. The characteristics of vulgar Spanish are mixed with some remains of the Leonese dialect and with certain features (mainly phonetic ones) typical of the southern regions, (eg: Both the aspiration of the voiceless fricative velar and the implosive /s/ imply a clear contrast with the speech of the rest of the province and the region). Phonetic and morphological characteristics are very briefly described. On the other hand, the study on the lexicon is the main priority and the main contribution. There is a selection of words that may be significant for differents reasons: either because of their originality (there is no documentary evidence of some of them); or because of their oddity: the dialectal lexicon, as a diatopic “variation”, is still significant in studying linguistic changes.notPeerReviewe