A Multi-DAG Model for Real-Time Parallel Applications with Conditional Execution

The 30th ACM/SIGAPP Symposium On Applied Computing (SAC 2015). 13 to 17, Apr, 2015, Embedded Systems. Salamanca, Spain.

Modeling assembly program with constraints. A contribution to WCET problem

Dissertação para obtenção do Grau de Mestre em Lógica Computacional

A distributed platform for the volunteer execution of workflows on a local area network

Thesis submitted in fulfilment of the requirements for the Degree of Master of Science in Computer Science

What do broadband consumers want? Design and execution of a questionnaire on demand for bundled services on the Portuguese telecomunications market

The report addresses the question of what are the preferences of broadband consumers on the Portuguese telecommunication market. A triple play bundle is being investigated. The discrete choice analysis, adopted in the study, base on 110 responses, mainly from NOVA students. The data for the analysis was collected via manually designed on-line survey. The results show that the price attribute is relatively the most important one while the television attribute is being overlooked in the decision making process. Main effects examined in the research are robust. In addition, "extras" components are being tested in terms of users' preferences.

An effective on-the-job training model-to facilitate strategy execution

Strategy execution has been a heated topic in the management world in recent years. However, according to a survey done by the Conference Board (2014), the chief executives are so concerned about the execution in their companies and have rated it as the No.1 or No.2 most challenging issue. Many of them choose to invest in training with a purpose to harvest the most for strategy execution. Therefore, this research is trying to find out a model to design training programs that can at most contribute to the success of strategy execution with three real-life training cases done by BTS Consulting Service. It was found that strategy execution could be greatly supported by training programs that take into consideration the four factors, namely Alignment, Mindset to Change, Capability and Organization Support. Main implications of the findings are presented and discussed. Key

HEP-Frame: A software engineered framework to aid the development and efficient multicore execution of scientific code

This work was supported by FCT (Fundação para a Ciência e Tecnologia) within Project Scope (UID/CEC/00319/2013), by LIP (Laboratório de Instrumentação e Física Experimental de Partículas) and by Project Search-ON2 (NORTE-07-0162- FEDER-000086), co-funded by the North Portugal Regional Operational Programme (ON.2 - O Novo Norte), under the National Strategic Reference Framework, through the European Regional Development Fund.

Entre la ejecución y la representación: intersecciones de lo real en la construcción escénica. Between the execution and the representation: intersections of the real thing in the scenic construction.

Esta propuesta de investigación se enmarca en los encuentros y discusiones que se están realizando en la Escuela de Artes de la Facultad de Filosofía y Humanidades (CEPIA, CIFFyH y SeCyT, de la U.N.C), en relación a las problemáticas de la investigación en Artes. Los encuentros llevados a cabo en diversas ocasiones y a lo largo de 2009, demuestran la necesidad de establecer un campo particular de la investigación y su relación con la práctica artística. Este proyecto nace de estas inquietudes y establece ciertos ejes de trabajo que permiten poner en práctica ciertos esbozos imaginados. En este sentido, nuestra propuesta se centra en definir la misma construcción escénica como objeto de estudio, delimitando sobre éste la problemática de lo real en el trabajo de la ficción, proponiendo además un equipo que permita investigar en su propio desarrollo creativo las diversas variables que entran en juego. De este modo, se trabajará en una propuesta de laboratorio escénico donde los planteos de orden teórico atraviesen la práctica y, a su vez, la observación de ésta permita una reelaboración y profundización del pensamiento contemporáneo sobre la problemática ejecución/representación, desde los diversos órdenes en que ésta interviene. La idea de representación teatral que planteaba Aristóteles señala que las acciones devienen necesariamente en la definición del carácter de los personajes. Este concepto es clave en el desarrollo del teatro occidental y por ende en las diferentes concepciones de actor. La definición de acción dada por Aristóteles es problemática para parte del teatro contemporáneo ya que supone que toda acción es mimética. También da por supuesto que en el teatro se conforman personajes, y que la unidad narrativa está dada por una programática, que es definida por la acción.La presente investigación se propone indagar en la relación entre la ejecución de la acción y su representación en el desarrollo de un laboratorio teatral. Esto implica que necesariamente es aplicada al trabajo escénico. Nuestra hipótesis de partida es que la relación conflictiva entre acción, ejecución de la misma y representación, se produce a partir de la operación material sobre lo real . Estas intersecciones podrían ser pensadas como una teoría del montaje donde la corporalidad es el principio necesario e irreductible de la construcción. La intersección de lo real es una problemática que permite ahondar sobre los procedimientos por los cuales se construye la escena. La idea de un teatro material, obliga a pensar con qué procedimientos se construye ficción. Un teatro que intenta recalar en lo “real” como modo de señalar la cosa misma, se propone, desde la perspectiva de la realización, indagar en los mecanismos de su construcción (procedimientos), por lo cual supone que la actividad teatral puede dar cuenta de los procesos por los cuales se realiza. La realización de una acción, puede remitir a sí misma y genera una relación “extraña” y ambigua con el mundo de referencia. La acción en sí misma, pone en cuestión la idea de modelo y da cuenta de una crisis en la representación. La teoría ha intentado dividir y sistematizar de manera binaria la manifestación teatral: Teatro de Representación/ Teatro Performático, para distinguir un teatro vinculado a la creación de personajes o para relacionarlo a un teatro de ejecución. Sin embargo, pensamos que es posible encontrar en la producción escénica, intersecciones de lo real que median el mundo de la representación y el de la performance para la construcción de ficción. Nuestra hipótesis de base es que si intervenimos el plano de la ejecución en el actor, la representación varía sustancialmente sus mecanismos de producción de sentido. Este primer planteo no es conflictivo hasta que se pone de manifiesto lo real. This research’s proposal is framed into the meetings and discussions that have been taking place in the School of Arts of the Faculty of Philosophy and Humanities (CEPIA, CIFFyH y SeCyT, of the National University of Cordoba), concerning the difficulties of research in Arts. The meetings carried out along 2009, demonstrate the need to establish a particular field of research and its relation to the practice of arts. This project is born from these concerns and it establishes central axis for the work, that enables us to put on practice some sketches imagined. In this regard, our proposal focuses on defining the construction of the scene as object of study, in itself, delimiting the issue of “the real” in the work of fiction. Proposing, furthermore, a team for researching the many variables that comes into play, in their own creative development. Consequently, the work will be developed in the method of a scenic laboratory, where the theoretical proposals cross over the practice and, in turn, these observations allow a reworking and deepen of contemporary thinking about the problematic of performance / representation, from the diverse orders in which it intervene. The idea of theatrical performance proposed by Aristotle, indicate that actions necessarily turn into the definition of the nature of the characters. This concept is key to the development of Western theaterand consequently on the different conceptions of actor. The definition of action given by Aristotle is problematic for a part of the contemporary theater, because it assumes that every action is mimetic. Also presumes that in the theatre the characters are formed, and narrative unit is given by a programmatic, which is defined by the action. This research proposes to explore the relationship between implementation of the action and its representation in the development of a theatrical laboratory. This implies that it is applied necessarily to the scenic practice. Our preliminary hypothesis is that the co.

Cross-frequency coupling tracks motor automization and execution in the human motor system

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2014

Olfactory traces and spatial learning in rats.

We conducted an experiment to assess the use of olfactory traces for spatial orientation in an open environment in rats, Rattus norvegicus. We trained rats to locate a food source at a fixed location from different starting points, in the presence or absence of visual information. A single food source was hidden in an array of 19 petri dishes regularly arranged in an open-field arena. Rats were trained to locate the food source either in white light (with full access to distant visuospatial information) or in darkness (without any visual information). In both cases, the goal was in a fixed location relative to the spatial frame of reference. The results of this experiment revealed that the presence of noncontrolled olfactory traces coherent with the spatial frame of reference enables rats to locate a unique position as accurately in darkness as with full access to visuospatial information. We hypothesize that the olfactory traces complement the use of other orientation mechanisms, such as path integration or the reliance on visuospatial information. This experiment demonstrates that rats can rely on olfactory traces for accurate orientation, and raises questions about the establishment of such traces in the absence of any other orientation mechanism. Copyright 1998 The Association for the Study of Animal Behaviour.

Kin structure and queen execution in the Argentine ant Linepithema humile

Every spring, workers of the Argentine Ant Linepithema humile kill a large proportion of queens within their nests, Although this behaviour inflicts a high energetic cost oil the colonies, its biological significance has remained elusive so far. An earlier study showed that the probability of a queen being executed is not related to her weight, fecundity, or age. Here we test the hypothesis that workers collectively eliminate queens to which they are less related, thereby increasing their inclusive fitness. We found no evidence for this hypothesis. Workers of a nest were on average not significantly less related to executed queens than to surviving ones. Moreover, a population genetic analysis revealed that workers were not genetically differentiated between nests. This means that workers of a given nest are equally related to any queen in the population and that there can be no increase in average worker-queen relatedness by selective elimination of queens. Finally, our genetic analyses also showed that, in contrast to workers, queens were significantly genetically differentiated between nests and that there was significant isolation by distance for queens.

Les traces de pneumatiques en sciences forensiques : de l'analyse chimique à l'évaluation de la force probante

This work is focused on the development of a methodology for the use of chemical characteristic of tire traces to help answer the following question: "Is the offending tire at the origin of the trace found on the crime scene?". This methodology goes from the trace sampling on the road to statistical analysis of its chemical characteristics. Knowledge about the composition and manufacture of tread tires as well as a review of instrumental techniques used for the analysis of polymeric materials were studied to select, as an ansi vi cal technique for this research, pyrolysis coupled to a gas Chromatograph with a mass spectrometry detector (Py-GC/MS). An analytical method was developed and optimized to obtain the lowest variability between replicates of the same sample. Within-variability of the tread was evaluated regarding width and circumference with several samples taken from twelve tires of different brands and/or models. The variability within each of the treads (within-variability) and between the treads (between-variability) could be quantified. Different statistical methods have shown that within-variability is lower than between-variability, which helped differentiate these tires. Ten tire traces were produced with tires of different brands and/or models by braking tests. These traces have been adequately sampled using sheets of gelatine. Particles of each trace were analysed using the same methodology as for the tires at their origin. The general chemical profile of a trace or of a tire has been characterized by eighty-six compounds. Based on a statistical comparison of the chemical profiles obtained, it has been shown that a tire trace is not differentiable from the tire at its origin but is generally differentiable from tires that are not at its origin. Thereafter, a sample containing sixty tires was analysed to assess the discrimination potential of the developed methodology. The statistical results showed that most of the tires of different brands and models are differentiable. However, tires of the same brand and model with identical characteristics, such as country of manufacture, size and DOT number, are not differentiable. A model, based on a likelihood ratio approach, was chosen to evaluate the results of the comparisons between the chemical profiles of the traces and tires. The methodology developed was finally blindly tested using three simulated scenarios. Each scenario involved a trace of an unknown tire as well as two tires possibly at its origin. The correct results for the three scenarios were used to validate the developed methodology. The different steps of this work were useful to collect the required information to test and validate the underlying assumption that it is possible to help determine if an offending tire » or is not at the origin of a trace, by means of a statistical comparison of their chemical profile. This aid was formalized by a measure of the probative value of the evidence, which is represented by the chemical profile of the trace of the tire. - Ce travail s'est proposé de développer une méthodologie pour l'exploitation des caractéristiques chimiques des traces de pneumatiques dans le but d'aider à répondre à la question suivante : «Est-ce que le pneumatique incriminé est ou n'est pas à l'origine de la trace relevée sur les lieux ? ». Cette méthodologie s'est intéressée du prélèvement de la trace de pneumatique sur la chaussée à l'exploitation statistique de ses caractéristiques chimiques. L'acquisition de connaissances sur la composition et la fabrication de la bande de roulement des pneumatiques ainsi que la revue de techniques instrumentales utilisées pour l'analyse de matériaux polymériques ont permis de choisir, comme technique analytique pour la présente recherche, la pyrolyse couplée à un chromatographe en phase gazeuse avec un détecteur de spectrométrie de masse (Py-GC/MS). Une méthode analytique a été développée et optimisée afin d'obtenir la plus faible variabilité entre les réplicas d'un même échantillon. L'évaluation de l'intravariabilité de la bande de roulement a été entreprise dans sa largeur et sa circonférence à l'aide de plusieurs prélèvements effectués sur douze pneumatiques de marques et/ou modèles différents. La variabilité au sein de chacune des bandes de roulement (intravariabilité) ainsi qu'entre les bandes de roulement considérées (intervariabilité) a pu être quantifiée. Les différentes méthodes statistiques appliquées ont montré que l'intravariabilité est plus faible que l'intervariabilité, ce qui a permis de différencier ces pneumatiques. Dix traces de pneumatiques ont été produites à l'aide de pneumatiques de marques et/ou modèles différents en effectuant des tests de freinage. Ces traces ont pu être adéquatement prélevées à l'aide de feuilles de gélatine. Des particules de chaque trace ont été analysées selon la même méthodologie que pour les pneumatiques à leur origine. Le profil chimique général d'une trace de pneumatique ou d'un pneumatique a été caractérisé à l'aide de huitante-six composés. Sur la base de la comparaison statistique des profils chimiques obtenus, il a pu être montré qu'une trace de pneumatique n'est pas différenciable du pneumatique à son origine mais est, généralement, différenciable des pneumatiques qui ne sont pas à son origine. Par la suite, un échantillonnage comprenant soixante pneumatiques a été analysé afin d'évaluer le potentiel de discrimination de la méthodologie développée. Les méthodes statistiques appliquées ont mis en évidence que des pneumatiques de marques et modèles différents sont, majoritairement, différenciables entre eux. La méthodologie développée présente ainsi un bon potentiel de discrimination. Toutefois, des pneumatiques de la même marque et du même modèle qui présentent des caractéristiques PTD (i.e. pays de fabrication, taille et numéro DOT) identiques ne sont pas différenciables. Un modèle d'évaluation, basé sur une approche dite du likelihood ratio, a été adopté pour apporter une signification au résultat des comparaisons entre les profils chimiques des traces et des pneumatiques. La méthodologie mise en place a finalement été testée à l'aveugle à l'aide de la simulation de trois scénarios. Chaque scénario impliquait une trace de pneumatique inconnue et deux pneumatiques suspectés d'être à l'origine de cette trace. Les résultats corrects obtenus pour les trois scénarios ont permis de valider la méthodologie développée. Les différentes étapes de ce travail ont permis d'acquérir les informations nécessaires au test et à la validation de l'hypothèse fondamentale selon laquelle il est possible d'aider à déterminer si un pneumatique incriminé est ou n'est pas à l'origine d'une trace, par le biais d'une comparaison statistique de leur profil chimique. Cette aide a été formalisée par une mesure de la force probante de l'indice, qui est représenté par le profil chimique de la trace de pneumatique.

Entre mystique et politique, quelques éléments structurels du Rāmāyaṇa de Tulsi Dās et leurs traces dans l'histoire de la réception du texte

Tulsi Das est probablement né aux alentours de 1550, en tant que brahmane, doté ainsi d'une naissance favorable parmi les lettrés et érudits de l'Inde. L'A. considère qu'il a réussi, dans son Ramayana, un mariage inégalé entre obligations dans le monde et intuition mystique libératrice ou l'amour fou pour un dieu personnel. En s'incrivant dans une perspective de l'histoire de la réception du texte, l'A. montre que Tulsi a largement contribué à façonner et à déterminer l'histoire religieuse de l'Inde du Nord. Son oeuvre compte parmi les livres religieux les plus lus et récités