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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Análise de benefícios do paralelismo por comunicação unilateral em aplicações com grades não estruturadas / Improvement analysis of parallelism by one-sided communication on unstructured grids applications

Pedro Pais Lopes 03 September 2010 (has links)
A computacao paralela, empregada no meio cientifico para resolucao de problemas que de- mandam grande poder computacional, teve nos ultimos anos o surgimento de um novo tipo de comunicacao entre instancias do paralelismo. Trata-se da Comunicacao Unilateral (CUL), onde somente uma instancia realiza a operacao de transferencia de informacoes, e esta ocorre em segundo plano, ao contrario da Comunicacao Bilateral (CBL), onde uma instancia envia a informacao e a outra recebe. Neste contexto se buscou analisar os beneficios que a CUL agrega ao paralelismo de um programa que se utiliza de uma grade nao estruturada em me- moria. Duas formas de apoio ao paralelismo foram utilizadas: uma biblioteca, a \"Message Passing Interface\" (MPI) (especificamente a sua parte que descreve a CUL), e uma extensao a linguagem Fortran, o Coarray Fortran (CAF). A semantica do MPI CUL e mais complexa que a do CAF, mas a do CAF e mais restritiva. Para analisar a semantica e desempenho da CUL foi realizada uma ambientacao utilizando MPI CUL e CAF no paralelismo de um programa simples, denominado jogo da Vida (Game of Life), com grade estruturada e com otimo desempenho paralelo atraves do MPI CBL. Na programacao o MPI CUL se mostrou verborragico (aumento do numero de linhas de codigo) e complexo, principalmente quando se utiliza um controle refinado de sincronismo entre as imagens. Ja o CAF reduziu o nu- mero de linhas de codigo (entre 20% e 40%), e o sincronismo e muito mais simples. Os resultados mostraram uma piora no desempenho no caso do MPI CUL, mas para o CAF o desempenho absoluto foi melhor que a implementacao original ate o numero de nucleos de processamento que compartilham a mesma memoria. Para grades nao estruturadas se utilizou o Ocean Land Atmospheric Model (OLAM), um modelo de simulacao do sistema terrestre com grade baseada em prismas triangulares, paralelizado atraves de MPI CBL. A implementacao da comunicacao por MPI CUL na estrutura do paralelismo existente mos- trou que esta semantica possui alguns pontos que podem prejudicar a programacao, como o tratamento da exposicao de memoria (cada instancia tem uma memoria exposta de tamanho diferente) e como e realizado o sincronismo entre as instancias. Em termos de desempenho as curvas de speed-ups mostraram que o MPI CUL prejudicou o OLAM independentemente da implementacao das bibliotecas ou do equipamento utilizado, com reducao de pelo menos 20% no speed-up para sete ou mais processadores. Assim como no jogo da Vida o MPI com comunicacao unilateral penalizou o desempenho. / Parallel computing is used to solve many scientific problems that demand intensive compu- ting power. Recently a new paradigm of communication between instances of the parallelism has appeared, called the one-sided communication (OSC), where only one instance performs the operation of information transfer, occurring in the background, as opposed to the two- sided communication (TSC), where one instance sends the information and the other receives it. In this context we analyze the benefits that OSC aggregates to the parallelism of a pro- gram that uses an unstructured grid in memory. Two OSC implementations were used: the \"Message Passing Interface\" (MPI) library (specifically the part that describes OSC), and Coarray Fortran (CAF), an extension of the Fortran language. The semantics of MPI OSC is more complex than that of CAF, but the semantics of CAF is more restrictive. To analyze the semantics and performance of OSC a simple program called Game of Life is used in a structured grid, giving very good parallel performance through MPI TSC. The MPI OSC program was verbose (increase in the number of lines of code) and complex, especially when using a more refined control to synchronize the parallel instances. On the other hand, CAF has reduced the number of lines of code (between 20% to 40%), and the synchronization is very simple. The results showed a worse performance in the case of MPI OSC, but for the CAF the absolute performance was better than the original implementation up to the number of processor cores that share the same memory. For unstructured grids we used the Ocean Land Atmospheric Model (OLAM), an earth simulation model on a grid based on triangular prisms, and parallelized with MPI TSC. The implementation with MPI OSC showed that this semantics has some points that may affect the coding of the communication structure, as in the treatment of memory exposure (each instance has an exposed memory of different size) and the way to treat the synchronization among instances. In terms of performance, the speedup curves showed that MPI OSC penalized OLAM, independently of the MPI implementation or the equipment used, with a reduction of at least 20% in speedup for seven or more processors. As in the Game of Life, MPI OSC degrades the performance.
22

Implementace modelu CAF ve vybraných institucích samosprávy / Implementation of CAF Model on chosen municipalities

Borek, Jiří January 2010 (has links)
The aim of the Master's Thesis is to describe the implementation of CAF Model on chosen municipalities, after that to evaluate differencies between selected examples, next to propose and prepare more cost-effective processes for the whole implementation in municipalities and further try to detect and eliminate all risks. As examples were chosen two different public institutions - Municipality of Konice and The Regional Authority of the Olomouc Region. Both progressed differently, however it is possible to find similar problems during the whole implementation and problem-solving as well. On the basis of evaluation of both examples there is a new methods proposal for the implementation of CAF Model, which eliminates frequent problems. The last chapter is applied to layout of future progress in the field of quality management at municipality sector in a short-term and long-term horizon.
23

Syntaktická komplexnost anglického jazyka nerodilých mluvčích a její operacionalizace / Syntactic Complexity in the Speech of Learners of English: Issues in Operationalization

Bulantová, Barbora January 2020 (has links)
The thesis analyses syntactic complexity of monologic tasks of 10 B2 and 10 C1 speakers of English with Czech as their L1. The data derives from LINDSEI_CZ (Gráf 2017). The transcripts of the recordings were segmented into AS-units (Foster et al. 2000) and adapted for the purposes of the analysis. Syntactic complexity was calculated using following measures: mean length of AS-unit, mean length of clause, clauses / AS-unit. These were complemented by fine-grained indices of structural complexity, comprised of ratios of subordinate clause types and coordinate verb phrases per total number of clauses (Vercellotti & Packer 2016) and a weighted complexity scale designed by Vercellotti (2018). The results of the quantitative analysis showed no significant effect of proficiency on syntactic complexity of the speakers. In fact, all speakers irrespective of language proficiency level produced very similar complex structures as opposed to lower-proficiency structures. This indicates that more fine-grained indices should be incorporated into spoken complexity research. At the same time, scores of each measure varied considerably within groups, pointing at the importance of inter-speaker variability in this research. The thesis thus produced outcomes that are largely methodological, in that it has identified...
24

Gene expression pattern and functional analysis of CD8+ T cells from individuals with or without anti HIV/SIV noncytolytic activity. / Gene expression pattern and functional analysis of CD8+ T cells from individuals with or without anti HIV/SIV noncytolytic activity

Aneela, Javed 22 June 2012 (has links)
No description available.
25

Hospodaření a fundraising neziskových organizací / Management and Fundraising of Nonprofit Organizations

Procházková, Pavla January 2013 (has links)
This thesis analyzes the financial and fundraising Society civic association Trend wheelchairs Olomouc . It includes theoretical knowledge about the functioning of non-profit organizations with a focus on financing, donor recruitment and methods of evaluation of their effectiveness. Analytical part applies the lessons arising from the theoretical to the practical level. In this section there are methods aimed at measuring of the performance of the organization. Forms part of the thesis is devoted to measures that should improve the overall functioning of the civic association. Klíčová slova
26

Tratamento das lesões intra-epiteliais cervicais de alto grau com cirurgia de alta freqüência em mulheres portadoras ou não do vírus da imunodeficiência humana / Treatment of intra-epithelial lesions of cervical high degree with surgery in high frequency bearers of women or no Virus Human Immunodeficiency

Melli, Patrícia Pereira dos Santos 20 December 2005 (has links)
Introdução: Sabe-se que a elevada prevalência da infecção pelo HPV na população sexualmente ativa, associa-se ao desenvolvimento delesões intra-epiteliais cervicais de alto grau e de baixo grau (LIEAG e LIABG). A cirurgia dealta freqüência (CAF) veio contribuir para o tratamento da LIE, substituindo práticas invasivas e onerosas. A população contaminada pelo HPV é composta por pacientes imunocompetentes e imunodeprimidas, especialmente as infectadas pelo HIV, que poderão ter diferente resposta a esta cirurgia. Objetivos:Avaliar a efetividade da CAF no tratamento das LIEAG no colo uterino e a taxa de complicações tardias dessa modalidade terapêutica em pacientes portadoras ou não do HIV e avaliar se a infecção HIV favorece a persistência de LIEAG após a CAF. Pacientes e Métodos: Estudo observacional prospectivo longitudinal onde foram selecionadas 97 pacientes portadoras de LIEAGe tratadas com CAF divididas em dois grupos: 38 pacientes portadoras do HIV e 59 não infectadas por esse vírus, todas atendidas em Hospital Universitário de referência terciária. As pacientes foram submetidas a CAF e reavaliadas com coleta de colpocitologia e colposcopia com três, seis, nove e 12 meses após o procedimento. As taxas de efetividade da CAF consideraram a evolução da doença cervical ao longo do seguimento desses dois grupos de pacientes por um ano. Resultados:Após o seguimento de 12 meses foram observadas situações de cura (citologia e colposcopia normais), melhora (citologia e/ou comcolposcopia com sinais de infecção HPV ou LIEBG) ou de piora da LIEAG inicial (lesão microinvasora/invasora). Sendo assim, foram obtidos para as pacientes portadoras do HIV: 56,7% de cura; 32,4% de melhora e nenhum caso de piora após o tratamento inicial. Para as pacientes não portadoras do HIV os resultados foram: 75,8% de cura; 13,8% demelhora e 1,7% de piora, indicando desfecho clínico mais favorável entre as pacientes não portadoras do HIV (X 2 , p= 0,02). As taxas de estenose de canal cervical entre as pacientes portadoras do HIV (13,5%) não foram estatisticamente diferentes daquelas observadas entre as pacientes não portadoras do HIV (10,5%). A excisão completa da LIE que motivou a CAF ocorreu em 69 (71,2%) pacientes. Entretanto, 21 (21,7%) mulheres tiveram excisão incompleta com margens da peça cirúrgica comprometida pela LIE. Dessas 21 pacientes que apresentaram margens da peça cirúrgica comprometidas apenas cinco tiveram necessidade de novo tratamento. Também foram submetidas a novo tratamento três das mulheres que tiveram margens cirúrgicas livres da peça excisada e uma paciente com a margemcirúrgica carbonizada. Conclusões: Não foi encontrada diferença estatisticamente significativa entre os dois grupos estudados em relação ao número de complicações após a realização da CAF e também na necessidade de novo tratamento no caso de mulheres portadoras do HIV. Entretanto, o desfecho clínico favorável (cura e melhora) para essa população estudada foi significativamente melhor para as pacientes não portadoras do HIV que para as infectadas por esse vírus após um ano de seguimento pós-CAF. A recidiva da LIEAG é mais freqüente em pacientes com margens cirúrgicas comprometidas, independente da presença da infecção pelo HIV. / Introduction: It is known that the high prevalence of HPV infection in the sexually active population is associated with the development of high and low-grade squamous intraepithelial lesions (HSIL and LSIL). Loop electrosurgical excision procedure (LEEP) has contributed to the treatment of SIL, replacing invasive and expensive procedures. The population contaminated with HPV consists of immunocompetent and immunodepressed patients, especially HIV-infected patients, who may respond differently to this surgery Objectives:To assess the effectiveness of LEEP in the treatment of HSIL in the uterine cervix and the rate of late complications of this therapeutic modality in patients infected or not with HIV and to determine whether HIV infection predisposes to the persistence of HSIL after LEEP. Patients and Methods: This was a prospective longitudinal observational study conducted on 97 patients with HSIL and treated with LEEP who were divided into two groups: 38 HIV-infected and 59 non-HIV-infected patients attended at a tertiary reference University Hospital. The patients were submitted to LEEP and re-evaluated bycolpocytology and colposcopy at three, six, nine and 12 months after the procedure.The rates of LEEP effectiveness were determined on the basis of the evolution of cervical disease along a one year follow-up of the two groups of patients Results:After a follow-up of 12 months, situations of cure (normal cytology and colposcopy), improvement (cytology and/or colposcopy with signs of HPV infection or HSIL) or of worsening of the original HSIL (microinvasive/invasive lesion) were observed. On this basis, the followingresults were obtained for HIV-infected patients: 55.2% of cure, 34.3% of improvement and no case of worsening after the initial treatment. For non-HIV-infected patients, the results were: 75.4% of cure, 14.1% of improvement and 1.7% of worsening, indicating a more favorable clinical outcome among non-HIV-infected patients (X 2 , p= 0.02). The rates of cervical canal stenosis among HIV-infected patients (13.5%) did not differ significantly from those among non-HIV-infected patients (10.5%). Complete excision of the SIL that motivated LEEP occurred in 69 (71.2%) patients. However, in 21 (21.7%) women, excision was incomplete, with SIL involvement of the margins of the surgical piece. Of these 21 patients with compromised surgical piece margins, only five required new treatment. Three of the women whose surgical margins were freeof disease and one patient with a carbonized surgical margin were also submitted to new treatment. Conclusions:No statistically significant difference was detected between the two groups regarding the number of complications after LEEP or also regarding the need for new treatment among HIV-infected women. However, a favorable clinical outcome (cure and improvement) for this population was significantly better for non-HIV-infected patients than for HIV-infected patients after one year of post-LEEP follow-up. HSIL recurrence was more frequent among patients with involved surgical margins regardless of the presence of HIV infection.
27

A eficiente diversifica??o comercial do caf? ar?bica : uma abordagem a partir da moderna teoria de carteiras

Barabach, Gil Carlos 29 August 2009 (has links)
Made available in DSpace on 2015-04-14T14:26:49Z (GMT). No. of bitstreams: 1 418477.pdf: 1995169 bytes, checksum: 09cb27818c46c6495b51cdb12c548f1c (MD5) Previous issue date: 2009-08-29 / O alto grau de risco da atividade agr?cola, em particular da cafeicultura, exige uma gest?o comercial mais apurada. E para isso n?o basta apenas reconhecer e utilizar as alternativas de mercados ? preciso compor essas in?meras possibilidades, buscando uma maior efici?ncia comercial. O estudo avalia justamente a composi??o das alternativas de negocia??o de caf? ar?bica no mercado brasileiro, tendo como base ? teoria de carteiras. Para isso, as possibilidades comerciais s?o distribu?das em ativos h?bridos, compostos pela comercializa??o do caf? e a aplica??o do resultado dessa venda em um fundo de renda fixa at? o t?rmino da temporada comercial. Cada alternativa representa um ativo isolado, que ir? compor ou n?o uma carteira de comercializa??o de caf?, onde o conjunto poss?vel contempla as diversas escolhas de venda. O mercado de caf? foi distribu?do em tr?s instrumentos comerciais: 1) negocia??es no mercado f?sico ? vista, considerando como refer?ncia o caf? ar?bica de bebida dura tipo 6 na regi?o Sul de Minas Gerais 2) hedge de venda do caf? ar?bica no mercado futuro, utilizando como refer?ncia a Bolsa de Mercadoria e Futuros (BM&F) e 3) a negocia??o no mercado a termo, com adiantamento total de recursos ao produtor. O trabalho analisa a composi??o das carteiras atrav?s do modelo de M?dia-Vari?ncia e do Capital Asset Price Model (CAPM). O grande desafio ? a aplicabilidade da t?cnica de risco-retorno envolvendo um mesmo ativo subjacente, o caf?. A solu??o encontrada para o problema foi utilizar a vari?vel tempo como par?metro de an?lise, com a venda de caf? pelo produtor sendo distribu?da entre as diferentes modalidades comerciais ao longo do ciclo comercial do produto. Os resultados mostraram uma melhora no desempenho comercial, com redu??o no risco e a eleva??o do retorno, a partir de carteiras mais diversificadas.
28

Městský úřad:působnost, organizace a činnost (na příkladu města Černošice)

Ulmanová, Hana January 2007 (has links)
Diplomová práce se zabývá některými základními aspekty fungování městských úřadů. Obce jsou základními územně samosprávnými celky. V České republice je užíván tzv. smíšený model veřejné správy. To znamená, že obce kromě vlastní samosprávy vykonávají také státní správu v přenesené působnosti. Výsledkem druhé fáze reformy veřejné správy bylo vyčlenění obcí s pověřeným obecním úřadem a obcí s rozšířenou působností. Cílem diplomové práce je provést analýzu postavení, působnosti a organizační struktury městského úřadu obce s rozšířenou působností včetně přiblížení jeho činnosti. Zmíním se také o metodách, které napomáhají zlepšovat činnost městského úřadu. Zvolila jsem Městský úřad Černošice jako konkrétní příklad pro zpracování vybraného tématu.
29

Efektivnost fungování municipálních subjektů vlivem implementace systému kvality / Functional efficiency of the municipal subjects owing to the implementation of the quality system

Jašková, Petra January 2007 (has links)
V diplomové práci se věnuji analýze vlivu implementace jednoho ze systémů řízení jakosti na subjekt územní samosprávy. V první kapitole proto uvádím základní definice a pojmy územní samosprávy. Zaměřuji se na kvalitu ve veřejné správě, na její vývoj a důvody, které vedou veřejnou správu k implementaci a využívání metod řízení kvality. Z možných metod kvality jsem si vybrala systém řízení jakosti pomocí sebehodnocení ? Common Assessment Framework (CAF) a hledám přínosy, které subjekt územní samosprávy může díky modelu CAF získat. Následně analyzuji jednotlivé kroky, které úřad při zavedení systému sebehodnocení musí provést. V závěru této práce analyzuji kvalitativní a kvantitativní přínosy modelu CAF pro občany, zaměstnance, společnost a pro konečné hospodaření úřadu.
30

Aplikace modelu CAF na sebehodnocení ZŠ Javorník

Nemeškalová, Magdalena Bc. January 2007 (has links)
Diplomová práce se zabývá problémem autoevaluace základní školy. Pro sebehodnocení Základní školy Javorník využívá model CAF, Společný hodnotící rámec pro organizace veřejného sektoru.

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