873 resultados para Concentrado
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Inclui notas explicativas, bibliográficas e bibliografia.
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Inclui notas explicativas e bibliográficas
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Inclui notas explicativas, bibliográficas e bibliografia
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Inclui bibliografia.
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Introdução: A anemia é um problema frequente nos recém-nascidos (RN) pré-termo e a transfusão de concentrado eritrocitário (CE) é o tratamento mais rápido e eficaz. Objetivos: Verificar se a política transfusional da unidade de Neonatologia esteve de acordo com os Consensos Nacionais de Anemia da Prematuridade de 2004 e avaliar a morbilidade dos RN transfundidos e não transfundidos. Material e Métodos: Estudo retrospetivo de RN com peso à nascença (PN) ≤1500g e/ou idade gestacional (IG) ≤32 semanas (janeiro 2010-dezembro 2013). Os RN foram agrupados de acordo com a realização de CE durante o internamento (grupo transfundido vs não transfundido). As variáveis demográficas foram: idade gestacional (IG), PN, género e índice de Apgar <7 ao 1º e 5º minuto. A comorbilidade incluiu displasia broncopulmonar (DBP), sépsis, persistência canal arterial (PCA), enterocolite necrosante, hemorragia peri-intraventricular (HPIV), leucomalácia periventricular (LPV) e retinopatia da prematuridade. Resultados: Foram incluídos 160 doentes: 88 realizaram pelo menos uma transfusão e 72 não realizaram transfusões. O grupo transfundido tinha menor IG e PN e maior duração de internamento. As transfusões de CE foram realizadas com valores médios de hemoglobina superiores nas situações de ventilação invasiva e menor idade pós-menstrual. A prevalência de DBP, sépsis, PCA, HPIV e LPV foi estatisticamente maior no grupo transfundido. Discussão e Conclusão: O tratamento da anemia nos prematuros de menor IG e PN associou-se a maior número de transfusões de CE. Os critérios transfusionais aplicados estiveram de acordo com os consensos nacionais de Neonatologia de 2004. O grupo transfundido teve maior prevalência de comorbilidade.
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This master thesis aims to research the tension established between the judicial review and democratic theory which was always present in the constitutional doctrine of separation of powers. In this regard, the expansion of the Brazilian constitutional jurisdiction checked after the occurrence of the Federal Constitution of 1988 and the inertia of the Legislature in disciplinary relevant legal aspects of Brazilian society contributed to a hyperactivity of the Supreme Court. However, in a complex society of context, as is the Brazilian society, there are contained demands and political controversies that hardly would be well represented or resolved through the action of the Court of ministers at the expense of other government bodies. Among the supremacy of Parliament and the legitimacy deficit of these magistrates, is the constitutional text and the social fabric that makes this legal status of the political. Participatory democracy established by the guidelines of the Federal Constitution requires this perspective when the Supreme Court acting in place of concentrated constitutionality control. In a plural society, there is no reason to get rid of state decision moments popular participation. Lack the Supreme Court, this time, the democratizing perception that the institute brings to the interior of the Court, as state determination of space in which to come together and meet the aspirations of society and state claims. The dissertation investigates thus the possibility of amicus curiae Institute serve as a mediator of the democratic debate, to assist the Supreme Court in the preparation of the decision is, historically, that which is of greater legitimacy, from the perspective of a theory participatory democracy. Analyzes, likewise, the unfolding of abstract judicial review in the context of Brazilian law. Proposes, incidentally, a rereading of the separation of powers, with the call for the Judiciary be careful not to become the protagonist of national political decisions. It maintains, finally, that procedural opening the interpreters of the constitution, through the amicus curiae Institute, shows up as able to decrease the legitimacy deficit in the performance of the Brazilian Supreme Court.
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Despite the numerous advantages resulting from the use of membrane filters technology, intrinsic limitations fouling process become relevant to its applicability. The control of operating conditions is an important tool to mitigate fouling and achieve good levels of efficiency. In this sense, the objective of this study was to investigate the effect of transmembrane pressure and concentrate flow in the performance of ultrafiltration, applied to the post-treatment of domestic sewage. The process was evaluated and optimized by varying the pressure (0.5 and 1.5 bar) and the concentrate flow (300 and 600 L/h), using a 22 factorial design, in order to investigate the effects on the permeate flow and quality of effluents generated at each operating condition. We evaluated the following quality indicators for permeate: pH, electrical conductivity, total suspended solids, turbidity, calcium and Chemical Oxygen Demand (COD). In all tests, we observed marked reduction in the permeate flux at the early stages, followed by a slow decline that lasted until it reaches a relatively constant level, around 120 minutes of filtration. The increased pressure resulted in a higher initial permeate flux, but the decrease of the flow with time is greater for tests at higher pressure, indicating a more pronounced fouling process. On the other hand, increasing the concentrate flow resulted in a slower decline in permeate flux with the filtration time. Regarding the quality of permeate, the transmembrane pressure of 0,5 bar was the one that allowed better results, and was statistically confirmed through the two-way ANOVA test with repeated measures, significant effect of pressure on the turbidity of the permeate. The concentrate flow, in turn, showed no significant influence on any of the quality parameters. Thus, we conclude that, from an economic and environmental point of view, it is more interesting to operate ultrafiltration membrane system with a lower concentrate flow associated with a low transmembrane pressure, since under these conditions will produce less waste, and the permeate will present lower concentrations of the analyzed constituent, especially lower turbidity.