Biotelemetría

Realizar una transmisión de la señal de ECG, a través de microondas.Determinar los fenómenos que intervienen en la transmisión de la señal.Guía de laboratorio # 9 para la materia de Bioinstrumentación I de la carrera de Ingeniería Biomédica

Termometría

Guía de laboratorio No. 2 para la materia: Bioinstrumentació

On the role of GPCR heteroreceptor complexes neuromodulation of the Claustrum

Esta conferencia invitada fue presentada dentro del simposium: Symposium S19 - Understanding the role of GPCR heteroreceptor complexes and their adaptor proteins in the neuronal networks of the brain in health and mental disordersG protein-coupled receptors (GPCRs) modulate the synaptic glutamate and GABA transmission of the claustrum. Our work focused on the transmitter-receptor relationships in the claustral catecholamine system and receptor-receptor interactions between kappa opioid receptors (KOR), dopamine receptor (D1R, D2R and D4R) and SomatostatinR2 (SSTR2) in claustrum. Methods used involved immunohistochemistry and in situ proximity ligation assay (PLA) using confocal microscopy. Double immunolabeling studies on D1R and tyrosine hydroxylase (TH) immunoreactivities (IR) demonstrated that D1R IR existed in almost all claustral and endopiriform nucleus nerve cell bodies, known as glutamate projection neurons, and D2R and D4R IR in large numbers of nerve cell bodies of the claustrum and endopiriform nucleus. However, only a low to moderate density of TH IR nerve terminals was observed in the endopiriform nucleus versus de few scattered TH IR terminals found in the claustrum. These results indicated that dopamine transmission in the rat operated via long distance dopamine volume transmission in the rat claustrum and endopiriform nucleus to modulate claustral-sensory cortical glutamate transmission. Large numbers of these glutamate projection neurons also expressed KOR and SSTR2 which formed KOR-SSTR2 together with D2R heteroreceptor complexes. The findings indicate that the sensory cortical glutamate drive on the glutamate claustral-cortical projection neurons is modulated by GPCRs and their receptor complexes located in the plasma membrane of these glutamate projection neurons. This can give the sensory cortical regions significant help in deciding on the salience to be given to various incoming sensory stimuli.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Distributed evolutionary algorithms and their models: A survey of the state-of-the-art

The increasing complexity of real-world optimization problems raises new challenges to evolutionary computation. Responding to these challenges, distributed evolutionary computation has received considerable attention over the past decade. This article provides a comprehensive survey of the state-of-the-art distributed evolutionary algorithms and models, which have been classified into two groups according to their task division mechanism. Population-distributed models are presented with master-slave, island, cellular, hierarchical, and pool architectures, which parallelize an evolution task at population, individual, or operation levels. Dimension-distributed models include coevolution and multi-agent models, which focus on dimension reduction. Insights into the models, such as synchronization, homogeneity, communication, topology, speedup, advantages and disadvantages are also presented and discussed. The study of these models helps guide future development of different and/or improved algorithms. Also highlighted are recent hotspots in this area, including the cloud and MapReduce-based implementations, GPU and CUDA-based implementations, distributed evolutionary multiobjective optimization, and real-world applications. Further, a number of future research directions have been discussed, with a conclusion that the development of distributed evolutionary computation will continue to flourish

Escuela de Estudios Árabes de Granada (Casa del Chapiz) : curso 1934-1935

La Escuela de Estudios Árabes de Granada se fundó por Ley de 27 de enero de 1932. Este folleto contiene un breve historia del centro, describe su organización el Programa de Estudios para el curso 1934-1935Peer reviewe

Breathers in inhomogeneous nonlinear lattices: an analysis via centre manifold reduction

We consider an infinite chain of particles linearly coupled to their nearest neighbours and subject to an anharmonic local potential. The chain is assumed weakly inhomogeneous. We look for small amplitude discrete breathers. The problem is reformulated as a nonautonomous recurrence in a space of time-periodic functions, where the dynamics is considered along the discrete spatial coordinate. We show that small amplitude oscillations are determined by finite-dimensional nonautonomous mappings, whose dimension depends on the solutions frequency. We consider the case of two-dimensional reduced mappings, which occurs for frequencies close to the edges of the phonon band. For an homogeneous chain, the reduced map is autonomous and reversible, and bifurcations of reversible homoclinics or heteroclinic solutions are found for appropriate parameter values. These orbits correspond respectively to discrete breathers, or dark breathers superposed on a spatially extended standing wave. Breather existence is shown in some cases for any value of the coupling constant, which generalizes an existence result obtained by MacKay and Aubry at small coupling. For an inhomogeneous chain the study of the nonautonomous reduced map is in general far more involved. For the principal part of the reduced recurrence, using the assumption of weak inhomogeneity, we show that homoclinics to 0 exist when the image of the unstable manifold under a linear transformation intersects the stable manifold. This provides a geometrical understanding of tangent bifurcations of discrete breathers. The case of a mass impurity is studied in detail, and our geometrical analysis is successfully compared with direct numerical simulations

La crítica adorniana a la fenomenología como preludio dialéctico de una lógica materialista

The main goal of this work is to investigate the evolution of Adorno’s reading of Husserl’s phenomenology, to present it as a central theme for the formation of his own materialistic philosophy. This article wants to trace the genesis of his thought, from his early fidelity to Cornelius’ work, to the framework of his own philosophy in the 1930s.El propósito de este artículo es prestar atención a la evolución de la lectura que hace Adorno de la fenomenología husserliana para abordar algunos de los problemas fundamentales que determinarán la formación materialista de su filosofía. Se pretende trazar la génesis de su pensamiento materialista desde su temprana afinidad con la obra de Cornelius, hasta los aspectos fundamentales de su filosofía de los años treinta

Experimental comparison of control strategies for trajectory tracking for mobile robots

The purpose of this paper is to implement, test and compare the performance of different control strategies for tracking trajectory for mobile robots. The control strategies used are based on linear algebra, PID controller and on a sliding mode controller. Each control scheme is developed taking into consideration the model of the robot. The linear algebra approaches take into account the complete kinematic model of the robot; and the PID and the sliding mode controller use a reduced order model, which is obtained considering the mobile robot platform as a black-box. All the controllers are tested and compared, firstly by simulations and then, by using a Pioneer 3DX robot in field experiments.Fil: Capito, Linda. Escuela Politécnica Nacional; EcuadorFil: Proaño, Pablo. Escuela Politécnica Nacional; EcuadorFil: Camacho, Oscar. Escuela Politécnica Nacional; EcuadorFil: Rosales, Andrés. Escuela Politécnica Nacional; EcuadorFil: Scaglia, Gustavo Juan Eduardo. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentin