Sequential Patterns
Mostrando 25-36 de 186 artigos, teses e dissertações.
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25. "Definição de conduta na investigação de doença coronária obstrutiva utilizando teoria de conjuntos fuzzy aplicada a dados clínico-epidemiológicos, ergométricos e cintilográficos" / Establishment of diagnostic procedures for coronary artery disease based on fuzzy set theory applied to clinical epidemiological data and treadmill electrocardiography and myocardial perfusion scintigraphy results.
Coronary artery disease (CAD) is a worldwide leading cause of death. Early detection is important to prevent such sort of outcome. The gold standard method for evaluating critical partial occlusions is coronary arteriography, a catheterization technique which is invasive, time consuming, and costly. There are noninvasive approaches for early detection of CAD
Publicado em: 2004
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26. Parallel implementation of an exact algorithm to solve a cutting pattern sequencing problem / Implementação paralela de um algoritmo exato para a resolução de um problema de seqüenciamento de padrões de corte
Consider a production line where items have to be cut from large boards. Each cut item is put into a stack that remains open until no boards that contain it are left. A problem arises when we want to determine what board cutting sequence minimizes the number of simultaneously open stacks. Parallel implementations of a sequential method were developed in orde
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2003
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27. Thymocyte migration: an affair of multiple cellular interactions?
Cell migration is a crucial event in the general process of thymocyte differentiation. The cellular interactions involved in the control of this migration are beginning to be defined. At least chemokines and extracellular matrix proteins appear to be part of the game. Cells of the thymic microenvironment produce these two groups of molecules, whereas develop
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-08
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28. Avaliação da resistência à fratura de dentes tratados endodonticamente restaurados com pinos dentários e com pinos de fibras de polietileno / Evaluation of Fracture Resistance of Endodontically Treated Teeth Reconstructed with Dentinal Post and Cores and Polyethylene Woven Fiber Ribbon Post and Cores
Fracture resistance of endodontically treated teeth reconstructed with polyethylene woven fiber ribbon post and cores and dentinal post and cores has been evaluated. For that purpose, 60 human maxillary canines were selected, cut on the cementoenamel junction, endodontically treated (non- filled canal to a depth of 8mm)and fixed in acrylic resin blocks. The
Publicado em: 2003
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29. Effect of sequential heat and cold shocks on nuclear phenotypes of the blood-sucking insect, Panstrongylus megistus (Burmeister) (Hemiptera, Reduviidae)
Thermal shocks induce changes in the nuclear phenotypes that correspond to survival (heterochromatin decondensation, nuclear fusion) or death (apoptosis, necrosis) responses in the Malpighian tubules of Panstrongylus megistus. Since thermal tolerance increased survival and molting rate in this species following sequential shocks, we investigated whether chan
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-12
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30. Caracterização geologica e geoestatistica de reservatorio carbonatico da Bacia de Campos
Carbonate reservoirs have lower recovery factors than those found in turbidite fields of Campos Basin, due to the presence of heterogeneities in several scales. In the studied reservoir, the most prominent heterogeneity is related to the flow units with different petrophysicals values, which cause higbly nonuniform fluid flow patterns. Identification of the
Publicado em: 1995
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31. Estudo comparativo de flores polinizadas por beija-flores em tres comunidades da Mata Atlantica no sudeste do Brasil
This study brings an analysis of information concerning the relationships between a group of ornitophilous flowers and hummingbirds, carried out at three rainforest sites in the state of São Paulo, the sites are Caraguatatuba, a coastallowland rainforest, and two highiand rainforests: Cunha and Campos do Jordão. The study has its main focus on floristic co
Publicado em: 1995
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32. Comparative Control of a Branch-Point Enzyme in Microorganisms
Thirty-two genera of microorganisms were identified with one of six distinctive control patterns for the enzyme 3-deoxy-d-arabino-heptulosonate-7-phosphate synthetase. These patterns included sequential feedback inhibition, isoenzyme feedback inhibition, cumulative feedback inhibition, and three (apparent) simple one-effector patterns. Documentation is provi
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33. Genotypic characterization of sequential Aspergillus fumigatus isolates from patients with cystic fibrosis.
Twenty-three sequential Aspergillus fumigatus sputum isolates, which had been collected over a period of 2 years, from two patients with cystic fibrosis were genotyped by random amplified polymorphic DNA PCR and restriction fragment length polymorphism analysis. In patient B, one genotype was predominantly present in the sputum samples, while in the other pa
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34. Ampicillin killing curve patterns for ampicillin-susceptible nontypeable Haemophilus influenzae strains by the agar dilution plate count method.
Ampicillin killing curve patterns for 20 strains of ampicillin-susceptible nontypeable Haemophilus influenzae were determined by the agar dilution plate count method. The paradoxical effect was detected in the 24-h killing curve patterns for each strain. For the biphasic effect, minimum survivor percentages (maximum killing) occurred over a narrow range of a
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35. Nonlinear sequence-dependent structure of nigral dopamine neuron interspike interval firing patterns.
Firing patterns of 15 dopamine neurons in the rat substantia nigra were studied. These cells alternated between two firing modes, single-spike and bursting, which interwove to produce irregular, aperiodic interspike interval (ISI) patterns. When examined by linear autocorrelation analysis, these patterns appeared to reflect a primarily stochastic or random p
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36. Sexual activity patterns in rams.
Behaviour was measured in reproductively experienced rams from three crossbred strains and two pure breeds (Suffolk and Finnish Landrace) in an attempt to develop a method for rapid screening of sexually aggressive rams and to measure breed differences in sexual activity. A set sequential pattern of activity need not occur in sexually experienced rams, and c