O estado de ansiedade pré-competitiva e seu possível relacionamento com o desempenho esportivo tem se tornado foco de investigação por diversos pesquisadores, principalmente na área da psicologia do esporte. Entretanto, na modalidade futsal, essa relação ainda encontra-se pouco explorada. Assim o objetivo geral do estudo foi verificar a relação entre ansiedade pré-competitiva e o desempenho esportivo em atletas profissionais de futsal durante os playoffs de um campeonato esportivo. Adicionalmente, buscou-se analisar a possível influência entre a condição de jogo (dentro e fora de casa) e fase do campeonato (quartas de final, semifinal e final) sob as respostas de ansiedade e desempenho, além de aplicar a Teoria da Catástrofe para testar a interação entre ansiedade, excitação fisiológica e desempenho. Para tanto o estudo analisou 16 atletas do sexo masculino de futsal, da categoria sub-20, pertencentes a um clube de elite, do estado de São Paulo, Brasil. O estudo foi conduzido durante os playoffs de um campeonato de alta importância para a equipe, sendo as coletadas realizadas nos jogos em casa e fora de casa, nas fases de quartas de final, semifinal e final. Em cada jogo, a coleta ocorreu entre 15 a 30min antes do aquecimento da equipe, sendo avaliados o estado de ansiedade pelo CSAI-2R e a excitação fisiológica pela VFC. O desempenho esportivo foi analisado subjetivamente pelo técnico (questionário em escala Likert). Os tratamentos estatísticos utilizados foram: ANOVA 2x3 para análise da influência da condição e fase do campeonato; a correlação de Pearson para analisar a correlação entre as variáveis analisadas e a regressão linear múltipla que compôs os cálculos da Teoria da Catástrofe. Para todas as análises, foram considerados um alfa de 5%. Como principais resultados destaca-se a relação positiva e significativa da excitação fisiológica e do desempenho entre as diferentes fases da competição. Correlações significativas foram estabelecidas entre as variáveis analisadas, entretanto a maioria delas classificadas como \"moderada\". Através da Teoria da Catástrofe foi possível observar uma positiva interação entre ansiedade, excitação fisiológica e desempenho esportivo. Através dos resultados encontrados, podemos concluir que: o estado de ansiedade pré-competitiva e o desempenho esportivo apresentam uma relação negativa em atletas de futsal. Esta relação pode ser observada com a aplicação da Teoria da Catástrofe, no qual sob altos níveis de ansiedade cognitiva, o desempenho do atleta de futsal tende a diminuir, apenas quando estado de excitação fisiológica estiver elevado. Podemos ainda concluir que a fase da competição pode influenciar significativamente no comportamento dos atletas, através de um aumento no nível de excitação fisiológica conjuntamente com um melhor desempenho com o passar das fases / The pre-competitive state anxiety and it´s possible relationship with the sport performance has become a focus of investigation for many researchers, especially in sport psychology. However in the sport futsal, this relationship is still inconclusive. Thus, the aim of this study was to investigate the relationship between pre-competitive anxiety and performance of professional athletes of futsal during the playoffs of a championship. Furthermore, in this study the possible influence of the phase and game condition on the anxiety and performance responses was analyzed, additionally, the Catastrophe Theory was used to see the interaction amongst cognitive anxiety, arousal and performance responses. To develop this study, 16 male professional futsal athletes were analyzed, belonging to an elite club of São Paulo, Brazil. The study was conducted throughout the playoffs of an important championship on high level for the team. The samples were collected in home and away venue in phases of quarterfinals, semifinals and finals. The data were collected about 15 to 30 minutes before the warm-up in each game, in which the anxiety by CSAI-2R and the physiological arousal by HRV were evaluated. Performance was analyzed subjectively (Likert Scale questionnaire) and objectively (match analysis). The used statistics treatments were: the ANOVA 2x3 for analyzing the influence of phase and game condition; the Pearson\'s correlation for testing the correlation among the variables (state anxiety, physiological arousal and performance) and for the Catastrophe Theory followed specific statistical tests. For all analyzes the alpha was set on 5%. Among the main results we identified a significant influence of the phase of competition for the pre-competitive physiological arousal and the subjective performance. Significant correlations were found among the variables, however, the majority of them was classified as \"moderate\". The Catastrophe Theory presented a positive application on the interaction among anxiety, physiological arousal by HRV indices and performance. Concerning the findings, we can conclude that the pre-competitive state of anxiety and the performance showed a negative relationship in futsal athletes. This relationship can be observed in the Catastrophe Theory, when under high levels of cognitive anxiety, decrease their performance as a function of the increase of physiological arousal. Beyond that, we can conclude that the phase of the game can influence the athlete\'s behavior. When the phase of championship increases, the athletes show a higher level of physical arousal, plus the great subjective performance

This research focuses on implementing and improving a parallel solution framework for the linear static analysis of large structural models on PC clusters. The framework consists of two separate programs where the first one is responsible from preparing data for the parallel solution that involves partitioning, workload balancing, and equation numbering. The second program is a fully parallel nite element program that utilizes substructure based solution approach with direct solvers. The first step of data preparation is partitioning the structure into substructures. After creating the initial substructures, the estimated imbalance of the substructures is adjusted by iteratively transferring nodes from the slower substructures to the faster ones. Once the final substructures are created, the solution phase is initiated. Each processor assembles its substructure&#039 / s stiffness matrix and condenses it to the interfaces. The interface equations are then solved in parallel with a block-cyclic dense matrix solver. After computing the interface unknowns, each processor calculates the internal displacements and element stresses or forces. Comparative tests were done to demonstrate the performance of the solution framework.

This thesis is a study of multiple access schemes for satellite land mobile systems that provide a domestic or regional service to a large number of small terminals. Three orbit options are studied, namely the geostationary, elliptical (Molniya) and inclined circular orbits. These are investigated for various mobile applications and the choice of the Molniya orbit is justified for a U. K. system. Frequency, Time and Code Division Multiple Access (FDMA, TDMA and CDMA) are studied and their relative merits in the mobile environment are highlighted. A hybrid TDMA/FDMA structure is suggested for a large system. Reservation ALOHA schemes are appraised in a TDMA environment and an adaptive reservation multiple access protocol is proposed and analysed for a wide range of mobile communication traffic profiles. The system can cope with short and long data messages as well as voice calls. Various protocol options are presented and a target system having 100,000 users is considered. Analyses are presented for the steady state of protocols employing pure and slotted ALOHA and for the stabilty of the slotted variant, while simulation techniques were employed to validate the steady state analysis of the slotted ALOHA protocol and to analyse the stability problem of the pure ALOHA version. An innovative technique is put forward to integrate the reservation and the acquisition processes. It employs the geographical spread of the users to form part of the random delay in P-ALOHA. Finally an economic feasibility study is performed for the spacesegment. For costs of capital (r) less than 23 % the discounted payback period is less than the project's lifetime (10 years). At r- 8% the payback period is about 5.6 years, while the internal-rate-of-return is 22.2 %. The net present value at the end of the projects lifetime is £M 70 at r-8%.

Este trabalho tem como objetivo a investigação analítica do sistema expressivo de cinco obras para Coro a cappella do compositor Osvaldo Lacerda com poemas de Carlos Drummond de Andrade, salientando as relações que a música estabelece com a arte poética e investigando as técnicas composicionais adotadas pelo compositor de acordo com a extração musical que este faz do poema para construção do seu discurso poético-musical. As obras corais são: Quadrilha (1967), Romaria (1967), Poema da Necessidade (1967), Céu Vazio (1968) e Uníssono (primeira peça dos Quatro Estudos para Coro de 1971). A partir desta Análise para o Intérprete são oferecidas sugestões para a realização musical das referidas obras,apontando aspectos relevantes da interpretação coral. / The focus of this dissertation is the analytical investigation of the expressive system of five pieces for a cappella choir written by composer Osvaldo Lacerda on poems by Carlos Drummond de Andrade, pointing out the relations that music establishes with poetic art and investigating compositional techniques adopted by the composer in accordance with the musical extraction he makes from the poem to construct his musical-poetic meanings. The choral works are: Quadrilha (1967), Romaria (1967), Poema da Necessidade (1967), Céu Vazio (1968) e Uníssono (first part fo Quatro Estudos para Coro, 1971). From this analysis, suggestions about the performance of these pieces are offered to the interpreter, pointing to relevant aspects of choral interpretation.

Este trabalho tem como objetivo a investigação analítica do sistema expressivo de cinco obras para Coro a cappella do compositor Osvaldo Lacerda com poemas de Carlos Drummond de Andrade, salientando as relações que a música estabelece com a arte poética e investigando as técnicas composicionais adotadas pelo compositor de acordo com a extração musical que este faz do poema para construção do seu discurso poético-musical. As obras corais são: Quadrilha (1967), Romaria (1967), Poema da Necessidade (1967), Céu Vazio (1968) e Uníssono (primeira peça dos Quatro Estudos para Coro de 1971). A partir desta Análise para o Intérprete são oferecidas sugestões para a realização musical das referidas obras,apontando aspectos relevantes da interpretação coral. / The focus of this dissertation is the analytical investigation of the expressive system of five pieces for a cappella choir written by composer Osvaldo Lacerda on poems by Carlos Drummond de Andrade, pointing out the relations that music establishes with poetic art and investigating compositional techniques adopted by the composer in accordance with the musical extraction he makes from the poem to construct his musical-poetic meanings. The choral works are: Quadrilha (1967), Romaria (1967), Poema da Necessidade (1967), Céu Vazio (1968) e Uníssono (first part fo Quatro Estudos para Coro, 1971). From this analysis, suggestions about the performance of these pieces are offered to the interpreter, pointing to relevant aspects of choral interpretation.

In this thesis a vertical turbine mixed flow pump that has a flow rate of 40 l/s and 16 mwc head at 2900 rpm is designed. Effect of design parameters are investigated and flow inside the pump is analyzed with the help of numerical experimentations. The designed pump is manufactured and tested in Layne Bowler Pumps Company and completed in T&Uuml / BiTAK - TEYDEB project. Pump is designed in the tolerance limits that are defined in the standard TS EN ISO 9906. Numerical experimentation results for performance charecteristics show the same trend with the test results. In addition, axial thrust measurements are done on the designed pump with using load cells. Effect of balancing holes and balancing ring are investigated. Balancing holes are drilled at various diameters at the back side of the impellers and its effect is analyzed on the pump performance characteristics. Test results are compared with different approaches.

This study is concerned with developing a model to identify small-medium U.K. companies at risk of financial failure up to five years in advance. The importance of small companies in an economy, the impact of their failures, and the lack of failure research with respect to . this population, provided justification for this study. The research was undertaken in two stages. The first stage included a detailed description and discussion of the nature and role of small business in the UK economy, heir relevance, problems and Government involvement in this sector, together with literature review and assessment of past research relevant to this study. The second stage was involved with construction of the models using multiple discriminant analysis, applied to published accountancy data for two groups of failed and nonfailed companies. The later stage was performed in three parts : (1) evaluating five discriminant models for each of five years prior to failure; (2) testing the performance of each of the .five models over time on data not used . in their construction; (3) testing the discriminant models on a validation sample. The purpose was to establish the "best" discriminant model. "Best" was determined according to classification ability of the model and interpretation of variables. Finally a model comprising seven financial ratios measuring four aspects of a company's financial profile, such as profitability, gearing, capital turnover and liquidity was chosen. The model has shown to be a valid tool for predicting companies' health up to five years in advance.

Made available in DSpace on 2014-12-17T14:56:04Z (GMT). No. of bitstreams: 1 ClaudioACF.pdf: 1310703 bytes, checksum: 20942a00fb9b1da452758bbafaf1b59d (MD5) Previous issue date: 2003-09-23 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The last years have presented an increase in the acceptance and adoption of the parallel processing, as much for scientific computation of high performance as for applications of general intention. This acceptance has been favored mainly for the development of environments with massive parallel processing (MPP - Massively Parallel Processing) and of the distributed computation. A common point between distributed systems and MPPs architectures is the notion of message exchange, that allows the communication between processes. An environment of message exchange consists basically of a communication library that, acting as an extension of the programming languages that allow to the elaboration of applications parallel, such as C, C++ and Fortran. In the development of applications parallel, a basic aspect is on to the analysis of performance of the same ones. Several can be the metric ones used in this analysis: time of execution, efficiency in the use of the processing elements, scalability of the application with respect to the increase in the number of processors or to the increase of the instance of the treat problem. The establishment of models or mechanisms that allow this analysis can be a task sufficiently complicated considering parameters and involved degrees of freedom in the implementation of the parallel application. An joined alternative has been the use of collection tools and visualization of performance data, that allow the user to identify to points of strangulation and sources of inefficiency in an application. For an efficient visualization one becomes necessary to identify and to collect given relative to the execution of the application, stage this called instrumentation. In this work it is presented, initially, a study of the main techniques used in the collection of the performance data, and after that a detailed analysis of the main available tools is made that can be used in architectures parallel of the type to cluster Beowulf with Linux on X86 platform being used libraries of communication based in applications MPI - Message Passing Interface, such as LAM and MPICH. This analysis is validated on applications parallel bars that deal with the problems of the training of neural nets of the type perceptrons using retro-propagation. The gotten conclusions show to the potentiality and easinesses of the analyzed tools. / Os ?ltimos anos t?m apresentado um aumento na aceita??o e ado??o do processamento paralelo, tanto para computa??o cient?fica de alto desempenho como para aplica??es de prop?sito geral. Essa aceita??o tem sido favorecida principalmente pelo desenvolvimento dos ambientes com processamento maci?amente paralelo (MPP - Massively Parallel Processing) e da computa??o distribu?da. Um ponto comum entre sistemas distribu?dos e arquiteturas MPPs ? a no??o de troca de mensagem, que permite a comunica??o entre processos. Um ambiente de troca de mensagem consiste basicamente de uma biblioteca de comunica??o que, atuando como uma extens?o das linguagens de programa??o, permite a elabora??o de aplica??es paralelas, tais como C, C++ e Fortran. No desenvolvimento de aplica??es paralelas, um aspecto fundamental esta ligado ? an?lise de desempenho das mesmas. V?rias podem ser as m?tricas utilizadas nesta an?lise: tempo de execu??o, efici?ncia na utiliza??o dos elementos de processamento, escalabilidade da aplica??o com respeito ao aumento no n?mero de processadores ou ao aumento da inst?ncia do problema tratado. O estabelecimento de modelos ou mecanismos que permitam esta an?lise pode ser uma tarefa bastante complicada considerando-se par?metros e graus de liberdade envolvidos na implementa??o da aplica??o paralela. Uma alternativa encontrada tem sido a utiliza??o de ferramentas de coleta e visualiza??o de dados de desempenho, que permitem ao usu?rio identificar pontos de estrangulamento e fontes de inefici?ncia em uma aplica??o. Para uma visualiza??o eficiente torna-se necess?rio identificar e coletar dados relativos ? execu??o da aplica??o, etapa esta denominada instrumenta??o. Neste trabalho ? apresentado, inicialmente, um estudo das principais t?cnicas utilizadas na coleta dos dados de desempenho, e em seguida ? feita uma an?lise detalhada das principais ferramentas dispon?veis que podem ser utilizadas em arquiteturas paralelas do tipo Cluster Beowulf com Linux sobre plataforma X86 utilizando bibliotecas de comunica??o baseadas em aplica??es MPI - Message Passing Interface, tais como LAM e MPICH . Esta an?lise ? validada sobre aplica??es paralelas que tratam do problema do treinamento de redes neurais do tipo perceptrons usando retropropaga??o. As conclus?es obtidas mostram as potencialidade e facilidades das ferramentas analisadas.

This work had the aim to identify the key performance indicators of managing company on the basis of analysis its account statements. From these statements propose or improve reporting system. Analyzed company already has reporting system, so there are improvements, which consist in condensing reports, using ratio indicators and more interactivity of published reports.

This master thesis is focused on performance evaluation of company AGRI CS a.s., namely the evaluation of financial and business performance using benchmarking. The theoretical part deals with some approaches and methods suitable for the company performance evaluation with an emphasis on benchmarking. The main part however is in-depth case study on business performances of selected company. The core part is financial performance benchmarking based on public data from financial annual accounts. For this purpose I use database Amadeus. I analyzed most of the performance indicators for an average of industry branch as well as for 14 most intense competitors. Final remarks of the thesis discuss the main findings and conclusions of the whole performance analysis. On top of that I present possible recommendations for the selected company in order to enhance or even eliminate identified weaknesses.