Gustavo Rodríguez Gómez

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Non-missile low velocity penetrating brain injuries are unusual among civilian population. They show specific characteristics different from missile wounds. In this paper we describe a rare case of self-inflicted penetrating head trauma by electric drill. We document neuroimaging studies and review the management concerning this pathology. To our knowledge,(More)
In the last years, there has been an increased investigation of efficient algorithms to solve problems of great scale. The main restriction of the traditional methods, like finite difference methods and finite element methods, is the mesh generation. In this work, we investigate the overlapping domain decomposition method applied to time dependent partial(More)
In this work, by using the local node refinement technique proposed by Behrens and Iske (2002) and Behrens et al. (2001), and a quad-tree type algorithm (Berger and Jameson, 1985; Keats and Lien, 2004), we built a global refinement technique for Kansa's unsymmetric collocation approach. The proposed scheme is based on a cell by cell data structure, which by(More)
— The preservation of temporal dependencies among different media data, such as text, still images, video and audio, and which have simultaneous distributed sources as origin, is an open research area and an important issue for emerging distributed multimedia systems, such as Teleimmersion, Telemedicine, and IPTV. Although there are several works oriented(More)
26 27 The paper presents an efficient ∆-causal algorithm for the transmission of real-time continuous 28 media (e.g. audio and video) in distributed systems. The ∆-causal algorithm is oriented to be used in 29 real-time collaborative applications, such as Teleconferece and Teleimmersion. The ∆-causal 30 algorithm ensures causal delivery of messages with(More)
Problem statement: Causal ordering is used in Mobile Distributed Systems (MDS) to reduce the non-determinism induced by four main aspects: host mobility, asynchronous execution, unpredictable communication delays and unreliable communication channels. Some causal protocols have been proposed for MDS. All of these protocols in order to ensure the causal(More)
Causal ordering is a useful tool for mobile distributed systems (MDS) to reduce the non-determinism induced by three main aspects: host mobility, asynchronous execution, and unpredictable communication delays. Several causal protocols for MDS exist. Most of them, in order to reduce the overhead and the computational cost over wireless channels and mobile(More)
A cellular network consists of two main components: base stations (BS) and mobile hosts (MH). It is through base stations that mobile hosts can communicate. In order to reduce the causal overhead and the computational cost over mobile hosts, most of the existing protocols for cellular networks ensure causal order at BSs. However, these protocols introduce(More)
The Internet 2 deployment introduces new capabilities, such as multi-party collaboration, high-scale multimedia assembly and multicast communication. For this reason, the research concerning security is facing new challenges. One such challenge is to create secure multi-session frameworks to ensure the confidentiality of exchanged information. In a(More)