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Comportamento à fadiga de elementos de betão reforçados através de sistemas NSM...

O presente trabalho tem como objetivo principal contribuir para o conhecimento do comportamento a longo prazo de estruturas de betão reforçadas de acordo com a técnica NSM (Near-Surface Mounted). O comportamento a longo prazo das estruturas reforçadas é afetado pelas condições ambientais, tais como gelo/degelo, ciclos térmicos, exposição a agentes químicos agressivos e radiação ultra violeta. Além disso, o comp...

Autosomal dominant polycystic kidney disease in hemodialysis patients in southe...

Introduction: Autosomal dominant polycystic kidney disease is the most common hereditary renal disease in humans. Objective: To examine the prevalence, clinical and laboratory characteristics of patients with polycystic kidneys and relate disease manifestations by gender. Methods: This was an observational and retrospective study. All the medical records of patients with polycystic kidneys who initiated hemodia...

Sucesso da amamentação : influência da pega da mama

TLR9 activation dampens the early inflammatory response to paracoccidioides bra...

Background: Paracoccidioides brasiliensis causes paracoccidioidomycosis, one of the most prevalent systemic mycosis in Latin America. Thus, understanding the characteristics of the protective immune response to P. brasiliensis is of interest, as it may reveal targets for disease control. The initiation of the immune response relies on the activation of pattern recognition receptors, among which are TLRs. Both T...

The role of glucose in biofilm formation by species of Candida albicans and can...

Displacement and strain field assessment of PDMS using digital image correlation

The main goal of this work is the characterization of the hyper-elastic mechanical behaviour of PDMS. The special specimens of PDMS (Sylgard® 184) were tested in a bi-axial tensile machine. During the tensile test was used a commercial digital image correlation system (ARAMIS of GOM) to obtain de displacement and strain fields. These measurements are compared with numerical simulations which use the most popula...

Reforço de elementos de betão armado com recurso a laminados de CFRP multidirec...

A aplicação de polímeros reforçados com fibras (Fiber Reinforced Polymers – FRP) no reforço de estruturas de betão armado (BA) tem sido realizada, essencialmente, com recurso às técnicas de colagem externa de mantas ou faixas de laminado e de inserção de laminados ou varões no betão de recobrimento. No âmbito do projeto de investigação em que este trabalho se insere pretendeu-se avaliar as potencialidades de um...

Bond behaviour of concrete elements strengthened with NSM CFRP laminate strips ...

In the last years, the near-surface mounted (NSM) technique has been adopted to increase the load carrying capacity of concrete members. Up to now, research was mainly focused on the structural aspects of NSM strengthening of concrete structures. From an extensive bibliographic search performed, no significant information was found concerning to the NSM long-term performance. The present work has the main objec...

Diferentes métodos de avaliação do comportamento da ligação de laminados de CFR...

O presente trabalho pretende contribuir para o conhecimento da durabilidade da técnica baseada na inserção de laminados de CFRP (Carbon Fiber Reinforced Polymer) no betão de recobrimento (NSM, Near-Surface Mounted). Para isso, foram realizados trinta e cinco ensaios de arrancamento direto em provetes cúbicos previamente submetidos a ciclos de molhagem e secagem na presença de cloretos (NaCl). A monitorização do...

Cross-cultural adaptation of the Operationalized Psychodynamic Diagnosis (OPD-2...

Background: The Operationalized Psychodynamic Diagnosis (OPD-2) is internationally established as one of the major instruments available for clinical diagnosis and scientific research, being frequently used as an auxiliary tool in the selection of therapeutic interventions. Aims: 1) To describe the methodological aspects of the adaptation of the OPD-2 into Portuguese (Portugal and Brazil). 2) To assess inter-ra...