Separation Vector
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. Robust pulmonary segmentation for chest radiography, combining enhancement, adaptive morphology and innovative active contours
Abstract Introduction Statistical data reveal that approximately 140 million radiological exams are performed annually in Brazil. These exams are designed to detect and to analyze fractures, caused by different types of trauma; as well as, to diagnose pathologies such as pulmonary diseases. For better visualization of those lesions or abnormalities, method
Res. Biomed. Eng.. Publicado em: 13/09/2018
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2. Molecular divergence in the timeless and cpr genes among three sympatric cryptic species of the Anopheles triannulatus complex
Anopheles triannulatus s.l. is a malaria vector with a wide geographic distribution, ranging from Argentina-Nicaragua and Trinidad. Here we analysed sequences of two genes, timeless and cpr, to assess the genetic variability and divergence among three sympatric cryptic species of this complex from Salobra, central-western Brazil. The timeless gene sequences
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08
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3. Análise proteômica das salivas dos triatomíneos Rhodnuis brethesi, Rhodnius robustus e Panstrongylus megistus, vetores da doença de Chagas
Triatomine bugs acting as vectors of Chagas‟ disease are haematophagous organisms in all of its evolvement phases. Their feeding success is greatly related to their salivary glands content. The presence of a pool of specific proteins allows this insect to access its food by counteracting host haemostatic mechanisms, such as platelet aggregation, clotti
Publicado em: 2009
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4. Analyze of molecular differentiation among Anopheles (Kerteszia) cruzi Brazilian populations using a multilocus approach (Diptera: Culicidae) / Análise da diferenciação molecular entre populações brasileiras de Anopheles (Kerteszia) cruzii utilizando uma abordagem multilocus (Diptera: Culicidae)
Anopheles (Kerteszia) cruzii (Diptera: Culicidae) has long been known as the primary vector of human and simian malaria parasites in southern and southeastern Brazil. The distribution of this mosquito follows the coast of the Brazilian Atlantic forest. Previous studies have suggested that An. cruzii is a complex of cryptic species. In the current study, a fr
Publicado em: 2009
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5. Quantum block codes with unequal error protection / CÃdigos de bloco quÃnticos com proteÃÃo desigual de erros
Quantum error correction codes have been developed to enhance the reliability of the quantum hardware. The majority of the known quantum codes belong to the class of block codes, while quantum convolutional codes have been recently proposed. The class of unequal error protection (UEP) codes, well known in the theory of classical codes, has not been studied i
Publicado em: 2008
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6. SeleÃÃo de protÃtipos: combinando auto-geraÃÃo de protÃtipos e mistura de gaussianas
Prototype selection is a machine learning scheme in which the main purpose is to choose pattern vectors from the training dataset that achieve a better fit to data point distributions and maintain class separation. The aim of this kind of technique is to find the smallest possible prototype set that minimizes the classification error rate. Prototype-based st
Publicado em: 2008
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7. Obtaining of recombinant strains of the yeast Kluyveromyces lactis producers of streptavidin / Obtenção de linhagens de Kluyveromyces lactis recombinantes produtoras de estreptavidina
The high affinity interaction streptavidin-biotin provides an excellent system for industrial enzyme separation or immobilization involving a fused streptavidin-enzyme and a biotinylated support. In order to produce proteins with affinity to biotin, we have modified the commercial K. lactis system, pKLAC1 (New England Biolabs), a LAC4 promoter-driven integra
Publicado em: 2007
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8. Desenvolvimento e aplicação de metodos quimiometricos de ordem superior
Two of the multi-way methods presented in this work were developed in psychometrics for psychological studies. On being applied in chemical data these methods demand on refinements to accommodate the variation present in the chemical data. Although the development of such kind of refinements there are some variation within the data which cannot be described
Publicado em: 2002
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9. Strategies of dynamic modelling and computational simulation of the three-phase induction motor. / Estratégias de modelagem dinâmica e simulação computacional do motor de indução trifásico.
In this work it is carried out the modelling and simulation of the three-phase induction motor. It s considered three-phase, orthogonal, vectorial and complex notations, showing the different model equations and the result of the computational simulations. For the simulation it was used different softwares of the academic area, and its results and computat
Publicado em: 2000
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10. Discrete wave mechanics: Multidimensional systems
Discrete wave mechanics is pursued further by extending the one-dimensional treatment to two (or more) dimensions in the light of explicit momentum considerations. Cognizance is taken of the effect of particle motion on mass and hence on the interactions between components of motion in different directions. The overall energy parameter turns out to be a prod
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11. Phylogeny of the Genus Flavivirus
We undertook a comprehensive phylogenetic study to establish the genetic relationship among the viruses of the genus Flavivirus and to compare the classification based on molecular phylogeny with the existing serologic method. By using a combination of quantitative definitions (bootstrap support level and the pairwise nucleotide sequence identity), the virus
American Society for Microbiology.
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12. Separation of complementary strands of plasmid DNA using the biotin-avidin system and its application to heteroduplex formation and RNA/DNA hybridizations in electron microscopy.
A method for the separation of complementary strands with the help of the biotin-avidin system is described. Restriction fragments were terminally labeled at both ends with biotinylated nucleotides. The DNA was cut by a second restriction enzyme, and the fragments were bound to an avidin agarose column. The non-biotinylated strands were eluted with 0.1 M NaO