Tese de doutoramento. Engenharia química. 2006. Faculdade de Engenharia. Universidade do Porto
Until recently, Helicobacter pylori was considered a bacterium without prophages. The presence of an incomplete prophage sequence in strain B38 and a complete prophage sequence in strain B45 showed otherwise. Using a PCR strategy, based on degenerated primers designed after aligning bacteriophage integrase genes from H. pylori strains B38 and B45, and H. acinonychis prophage II, we found that integrase sequence...
Tese de mestrado integrado. Engenharia Civil - Especialização em Vias de Comunicação. Universidade do Porto. Faculdade de Engenharia. 2011
Genomic-methylation typing method, based on strains’ Restriction/Modification systems, confirmed the genetic variability of Helicobacter pylori. According to this, strains isolated from patients of the same family, or from the same geographic region, cluster together. The analysis of proteome’s variability of these clusters has been a missing topic. We applied the Minimum-Common-Restriction-Modification (MCRM) ...
Pretende-se com este trabalho, determinar as forças de extracção em moldes de injecção de materiais termoplásticos. No processo de moldação por injecção de materiais termoplásticos é necessário utilizar um molde com sistema de extracção mecânico para remover a peça da bucha moldante. A extracção da peça plástica do molde é realizada geralmente com recurso a extractores, aros ou barras extractoras. A força de ex...
Background Helicobacter pylori colonizes the human stomach and is associated with gastritis, peptic ulcer, and gastric cancer. This ubiquitous association between H. pylori and humans is thought to be present since the origin of modern humans. The H. pylori genome encodes for an exceptional number of restriction and modifications (R-M) systems. To evaluate if R-M systems are an adequate tool to determine the ge...
A nomenclature is described for restriction endonucleases, DNA methyltransferases, homing endonucleases and related genes and gene products. It provides explicit categories for the many different Type II enzymes now identi®ed and provides a system for naming the putative genes found by sequence analysis of microbial genomes.
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