Efficient resources assignment schemes for clustered multithreaded processors

New feature sizes provide larger number of transistors per chip that architects could use in order to further exploit instruction level parallelism. However, these technologies bring also new challenges that complicate conventional monolithic processor designs. On the one hand, exploiting instruction level parallelism is leading us to diminishing returns and therefore exploiting other sources of parallelism like thread level parallelism is needed in order to keep raising performance with a reasonable hardware complexity. On the other hand, clustering architectures have been widely studied in order to reduce the inherent complexity of current monolithic processors. This paper studies the synergies and trade-offs between two concepts, clustering and simultaneous multithreading (SMT), in order to understand the reasons why conventional SMT resource assignment schemes are not so effective in clustered processors. These trade-offs are used to propose a novel resource assignment scheme that gets and average speed up of 17.6% versus Icount improving fairness in 24%.Peer ReviewedPostprint (published version

Performance of adaptive bayesian equalizers in outdoor environments

Outdoor communications are affected by multipath propagation that imposes an upper limit on the system data rate and restricts possible applications. In order to overcome the degrading effect introduced by the channel, conventional equalizers implemented with digital filters have been traditionally used. A new approach based on neural networks is considered. In particular, the behavior of the adaptive Bayesian equalizer implemented by means of radial basis functions applied to the channel equalization of radio outdoor environments has been analyzed. The method used to train the equalizer coefficients is based on a channel response estimation. We compare the results obtained with three channel estimation methods: the least sum of square errors (LSSE) channel estimation algorithm, recursive least square (RLS) algorithm employed only to obtain one channel estimation and, finally, the RLS algorithm used to estimate the channel every decided symbol for the whole frame.Peer ReviewedPostprint (published version

Evidence of a Bank Lending Channel for Argentina and Colombia

In this paper we find empirical evidence of bank lending channel for Colombia and Argentina. For Argentina, we do not find evidence that changes in the interbank interest rate affect the growth rate of total loans directly. However, the interbank interestMonetary transmission, bank lending channel, Argentina, Colombia

Evidence of Bank Lending Channel for Argentina and Colombia

In this paper we find empirical evidence of bank lending channel for Colombia and Argentina. As for Argentina, we do not find evidence that changes in the interbank interest rate affect the growth rate of total loans directly. However, it does indirectly through interactions: the interbank interest rate affects the loan supply through its interactions with capitalization and liquidity. As for Colombia, there is direct bank lending channel, which is reinforced through interactions with capitalization and liquidity. Also, using a panel data of more than 3300 firms, we provide additional support to the existence of a bank lending channel for Colombia.Monetary Transmission; Bank Lending Channel; Argentina; Colombia

Jews in exile from the 3rd Reich in the spanish cinema: 1933-1936

Este artículo pretende dar cuenta por extenso de la participación de judíos exiliados del Tercer Reich en el cine español entre 1933 y 1936, años en los que florece la industria cinematográfica española tras la crisis del sonoro. Se analizan aquí las estrategias de las empresas que estos exiliados forman o gestionan, y el papel de los técnicos y artistas en el conjunto de la cinematografía española, ofreciendo un listado pormenorizado de nombres y actividades, y su destino tras el inicio de la Guerra Civil en EspañaThe aim of this paper is to fully inform the participation in the Spanish cinema between 1933 and 1936 of Jews in exile from the Third Reich. It is in these years that the Spanish film industry flourishes after the ‘Sound Crisis’. Not only the strategies of the production companies that these exiled Jews created or managed will be analysed, but also the role of technicians and artists that participated in every aspect of the Spanish cinematography. Additionally, a detailed list of names and activities will be provided, with indication of their destiny after the beginning of the Spanish Civil WarEste trabajo se inscribe en el Proyecto de Investigación financiado por el Plan Nacional del Ministerio de Economía y competitividad con clave HAR 2011-2437

La participación del profesorado en el control y gestión de los colegios de educación primaria

En este trabajo pretendemos analizar la participación del profesorado en el control y gestión de los colegios de educación primaria en el Principado de Asturias. Estudiamos en primer lugar las características más importantes de este profesorado, destacando, entre otros, los aspectos que se refieren a su experiencia en funciones directivas. Los docentes también valoran el cumplimiento por parte del claustro de profesores de las competencias que la norma le asigna. Otros aspectos de interés son los relacionados con el nombramiento del director del centro. El profesorado también valora su participación y a diversos órganos de gobierno e instituciones como cauces de participación

Contaduría Gerencial: Porque el valor actual neto conduce a mejores decisiones al evaluar proyectos de inversión que otro criterios en la empresa ZR Textil S, A.

En la Contabilidad Gerencial, uno de los grandes problemas que los administradores y los contadores en general enfrentan, es la toma de decisiones relacionadas con las distintas alternativas de financiamiento que requieren para sus operaciones. En este sentido, los métodos tradicionales de evaluación y valoración de proyectos de inversión, de los cuales versa la presente investigación; constituyen herramientas de uso frecuente y se utilizan como los criterios de mayor aceptación en la selección de proyectos de inversión. El tema específico del trabajo es “Por qué el Valor Actual Neto conduce a mejores decisiones al evaluar proyectos de inversión que otros criterios en la empresa ZR Textil S.A.”, el documento está dividido en dos partes, el marco teórico y el caso práctico, con este último se analiza la inversión en la empresa “ZR Textil, S.A.”, en donde se identifica la situación actual del activo existente, con relación al beneficio que obtendrá la empresa; y se realizan los cálculos con la información base aplicando diferentes métodos de selección de proyectos de inversión. Por último se pretende obtener cómo resultado conclusiones analíticas sobre los criterios de selección de inversiones empleados, ratificar las ventajas del Valor Actual Neto y finiquitar porque es beneficioso para la empresa aplicar el criterio del Valor Actual Neto para la toma de decisiones de proyectos inversión

Determinant factors of pull up performance in trainedathletes

Aim: to investigate the relationship among pull up and lat pull exercises and differentanthropometric dimensions in trained athletes. Methods: twenty-five males were evaluated for maximum number of pull ups, one-repetitionmaximum lat pull (1RM Lat Pull), lat pull repetitions at 80% 1RM (Lat Pull at 80% 1RM), latpull repetitions at a load equivalent to body mass (Lat Pull at BM-load), and differentanthropometric variables. Furthermore, the subjects were divided in higher (HPG, n = 12) andlower pull up performance (LPG, n = 13) to compare the differences in the variables analyzedbetween both levels. Results: pull ups were significantly correlated with Lat Pull at BM-load (r = .62, P < .01) butneither with 1RM Lat Pull (r = .09) nor with Lat Pull at 80% 1RM (r = -.15). Pull ups showed asignificant (P < .05) negative relationship with body mass (BM, r = -.55), lean body mass(LBM, r = -.51), and fat mass (FM, r = -.52), while BM and LBM were significantly correlatedwith 1RM Lat Pull (r = .55, P < .05). HPG showed significantly (P < .05) lower BM (0/3/97%),FM (1/3/97%) and LBM (1/4/95%) than LPG. Furthermore, HPG attained significantly (P < .05– .001) greater performance in Lat Pull at BM-load (100/0/0%) and 1RM Lat Pull•BM-1(96/3/2%) than LPG. Conclusion: these findings suggest that pull up and lat pull exercises have common elements.Moreover, the anthropometric dimensions seem to influence differently on both exercises,depending on the strength indicator evaluated