Simplified Metrics Calculation for Soft Bit Detection in DVB-T2

The constellation rotation and cyclic quadrature component delay (RQD) technique has been adopted in the second generation terrestrial digital video broadcasting (DVB-T2) standard. It improves the system performance under severe propagation conditions, but introduces serious complexity problems in the hardware implementation of the detection process. In this paper, we present a simplified scheme that greatly reduces the complexity of the demapper by simplifying the soft bit metrics computation having a negligible overall system performance loss

Towards a systematic design of isotropic bulk magnetic metamaterials using the cubic point groups of symmetry

In this paper a systematic approach to the design of bulk isotropic magnetic metamaterials is presented. The role of the symmetries of both the constitutive element and the lattice are analyzed. For this purpose it is assumed that the metamaterial is composed by cubic SRR resonators, arranged in a cubic lattice. The minimum symmetries needed to ensure an isotropic behavior are analyzed, and some particular configurations are proposed. Besides, an equivalent circuit model is proposed for the considered cubic SRR resonators. Experiments are carried out in order to validate the proposed theory. We hope that this analysis will pave the way to the design of bulk metamaterials with strong isotropic magnetic response, including negative permeability and left-handed metamaterials.Comment: Submitted to Physical Review B, 23 page

A composite hydrogel for brain tissue phantoms

Synthetic phantoms are valuable tools for training, research and development in traditional and computer aided surgery, but complex organs, such as the brain, are difficult to replicate. Here, we present the development of a new composite hydrogel capable of mimicking the mechanical response of brain tissue under loading. Our results demonstrate how the combination of two different hydrogels, whose synergistic interaction results in a highly tunable blend, produces a hybrid material that closely matches the strongly dynamic and non-linear response of brain tissue. The new synthetic material is inexpensive, simple to prepare, and its constitutive components are both widely available and biocompatible. Our investigation of the properties of this engineered tissue, using both small scale testing and life-sized brain phantoms, shows that it is suitable for reproducing the brain shift phenomenon and brain tissue response to indentation and palpation

La tutorización del TFG en el Grado de Psicología: propuesta de evaluación por rúbrica

Existe la necesidad de definir las competencias de tutorización del profesorado. Este trabajo presenta una propuesta de rúbrica para ayudar al profesorado a dirigir los TFG eficazmente.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Bases de poder del supervisor, conducta cooperadora y compromiso con la organización

Este trabajo analiza, en el contexto español, las bases de poder de los supervisores y la incidencia que las mismas tienen sobre la conducta cooperadora y el compromiso con la organización de sus subordinados. Los datos analizados pertenecen a 335 sujetos con la menos un año de experiencia laboal a tiempo completo. Mediante la contrastación de un modelo estructural, que relaciona las diversas bases de poder del jefe entre sí y con la conducta cooperadora y el grado de compromiso de los subordinados, se tratan de comprobar las relaciones existentes entre las variables mencionadas. Asimismo, se indican los principales resultados alcanzados y las implicaciones más relevantes que se pueden deducir a partir de los mismos de cara a las prácticas de los directivos