La figura del sabio en las narraciones hispanohebreas de los siglos XII y XIII.

Sin resume

Plan integral de obesidad infantil de andalucía

La obesidad infantil es una de las epidemias mas graves de nuestra sociedad por lo que constituye un problema de gran magnitud en España. Todo ello es fruto de la combinación de la reducción de la actividad física, el aumento del sedentarismo y el consumo excesivo de calorías. El objetivo de mi trabajo es revisar el Plan Integral de Obesidad Infantil de Andalucía y comprobar si tras su puesta en marcha en Atención primaria se consiguió reducir las tasas de obesidad y sobrepeso en la población infantil. La metodología utilizada fue una revisión narrativa de la literatura. Estudios epidemiológicos analíticos, transversales, revisiones sistemáticas y / o que aportan datos sobre las tasas de prevalencia y obesidad en Europa, España y Andalucía

Improvements in Hardware Transactional Memory for GPU Architectures

In the multi-core CPU world, transactional memory (TM)has emerged as an alternative to lock-based programming for thread synchronization. Recent research proposes the use of TM in GPU architectures, where a high number of computing threads, organized in SIMT fashion, requires an effective synchronization method. In contrast to CPUs, GPUs offer two memory spaces: global memory and local memory. The local memory space serves as a shared scratch-pad for a subset of the computing threads, and it is used by programmers to speed-up their applications thanks to its low latency. Prior work from the authors proposed a lightweight hardware TM (HTM) support based in the local memory, modifying the SIMT execution model and adding a conflict detection mechanism. An efficient implementation of these features is key in order to provide an effective synchronization mechanism at the local memory level. After a quick description of the main features of our HTM design for GPU local memory, in this work we gather together a number of proposals designed with the aim of improving those mechanisms with high impact on performance. Firstly, the SIMT execution model is modified to increase the parallelism of the application when transactions must be serialized in order to make forward progress. Secondly, the conflict detection mechanism is optimized depending on application characteristics, such us the read/write sets, the probability of conflict between transactions and the existence of read-only transactions. As these features can be present in hardware simultaneously, it is a task of the compiler and runtime to determine which ones are more important for a given application. This work includes a discussion on the analysis to be done in order to choose the best configuration solution.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Pipeline template for streaming applications on heterogeneous chips

We address the problem of providing support for executing single streaming applications implemented as a pipeline of stages that run on heterogeneous chips comprised of several cores and one on-chip GPU. In this paper, we mainly focus on the API that allows the user to specify the type of parallelism exploited by each pipeline stage running on the multicore CPU, the mapping of the pipeline stages to the devices (GPU or CPU), and the number of active threads. We use a real streaming application as a case of study to illustrate the experimental results that can be obtained with this API. With this example, we evaluate how the different parameter values affect the performance and energy efficiency of a heterogenous on-chip processor (Exynos 5 Octa) that has three different computational cores: a GPU, an ARM Cortex-A15 quad-core, and an ARM Cortex-A7 quad-core.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Proyecto de Excelencia de la Junta de Andalucía P11-TIC-08144

La policía y el deporte: una visión histórica

Retrospectiva histórica de la relación entre los cuerpos policiales y el deporte

Characteristics of Leadership in Public Relations. A comparison of results of Cross-Cultural Study of Leadership in Public Relations and Communication Management

Este artículo ofrece un análisis comparativo de los factores de liderazgo en el sector de las relaciones públicas y la gestión de la comunicación entre España y el conjunto de los 23 países que han participado en el Cross-Cultural Cultural Study of Leadership in Public Relations and Communication Management, promovido por la Universidad de Alabama y financiado por IBM y Heyman Associates. Siguiendo el modelo conceptual de Meng y Berger (2011), se abordan los desafíos que afrontan las relaciones públicas en la actualidad, así como los requisitos y características de los ‘líderes excelentes’. Los resultados obtenidos suponen un avance en el conocimiento científico sobre el liderazgo en la gestión de comunicación, un tema aún de escaso desarrollo en la literatura académica internacional y especialmente poco explorado en España

Breves apuntes sobre la psicología del deporte

Texto introductorio y aplicaciones prácticas a la psicología del deport

Hardware support for Local Memory Transactions on GPU Architectures

Graphics Processing Units (GPUs) are popular hardware accelerators for data-parallel applications, enabling the execution of thousands of threads in a Single Instruction - Multiple Thread (SIMT) fashion. However, the SIMT execution model is not efficient when code includes critical sections to protect the access to data shared by the running threads. In addition, GPUs offer two shared spaces to the threads, local memory and global memory. Typical solutions to thread synchronization include the use of atomics to implement locks, the serialization of the execution of the critical section, or delegating the execution of the critical section to the host CPU, leading to suboptimal performance. In the multi-core CPU world, transactional memory (TM) was proposed as an alternative to locks to coordinate concurrent threads. Some solutions for GPUs started to appear in the literature. In contrast to these earlier proposals, our approach is to design hardware support for TM in two levels. The first level is a fast and lightweight solution for coordinating threads that share the local memory, while the second level coordinates threads through the global memory. In this paper we present GPU-LocalTM as a hardware TM (HTM) support for the first level. GPU-LocalTM offers simple conflict detection and version management mechanisms that minimize the hardware resources required for its implementation. For the workloads studied, GPU-LocalTM provides between 1.25-80X speedup over serialized critical sections, while the overhead introduced by transaction management is lower than 20%.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Covid-19 communication management in Spain: Exploring the effect of information-seeking behavior and message reception in public’s evaluation

The World Health Organization (2011) has emphasized communication as one of the biggest challenges and places risk communication among the essential competencies required to tackle a pandemic. In light of the Covid-19 crisis, the aim of this paper is to assess how information forms and sources influence the public’s information-seeking behaviors, and the perception of government’s crisis response strategies during the pandemic. An online survey was conducted between March 14 and April 14, 2020, the first four weeks after the declaration of the State of Alarm in Spain. The online questionnaire included questions regarding information-seeking behavior, trust in different sources and channels, perception of government communication management, message retention, and demographic questions. Findings show a synchronous use of multiple media and platforms in line with channel complementarity theory. Three of the four most used information channels are considered mainstream news media. However, the second source of information is WhatsApp. People who relied more on the mainstream news media for Covid-19 information are generally most likely to express positive opinions of the government’s communication strategy. Findings also show that people less able to make correct attributions of governmental information were the most critical of the government’s crisis response. Finally, trust in public authorities’ decreases as the crisis evolves as a general matter. It is specially truth for the WHO, but there is also a striking exemption for local governments. Implications for theory and empirical research and recommendations and new issues to address are identified and discussed

Análisis longitudinal de la profesión de relaciones públicas en España en los últimos cinco años (2007-2011)

Desde su primera edición en 2007, los resultados del European Communication Monitor(ECM) han permitido identificar las tendencias en relaciones públicas y la gestión de lacomunicación en Europa, describiendo las características principales de los profesionalesdel sector, así como los instrumentos de comunicación que utilizan, los temasestratégicos, roles ejecutivos o su influencia en las decisiones corporativas, entre otrosaspectos. Esta macroencuesta transnacional, que en 2011 contó con la participación de2.209 profesionales de 43 países, se lleva a cabo en colaboración con académicos de onceuniversidades europeas, la European Public Relations Education and Research Association(EUPRERA) y el apoyo de la European Association of Communication Directors (EACD).En este estudio se han aislado las preguntas que permiten un análisis longitudinal de lasencuestas del ECM entre 2007 y 2011 (Zerfass, Van Ruler, Rogojinaru, Verčič, y Hamrefors,2007; Zerfass, Moreno, Tench, Verčič, y Verhoeven, 2008, 2009, 2010 y 2011) y los casosde estudio correspondientes a profesionales españoles con el objetivo de ofrecer unavisión panorámica sobre la evolución de la profesión en España en el último lustro.Palabras clave: European Communication Monitor, temas estratégicos, canales decomunicación, disciplinas, relaciones públicas en España, roles profesionales, evaluación