Projeto de um sistema anaeróbico para estabilização de lodo e recuperação de energia

The treatment of domestic and industrial effluents through Wastewater Treatment Plants (WTPs) generates a residue termed sewage sludge, rich in organic matter, high-volume, occasionally containing pathogens and heavy metals. The sludge generation can minimize the benefits brought by the treatment of sewage, because this residue does not always receive appropriate treatment before final disposal. The disposal is another problem related to sludge. Landfills generally does not have physical space and alternatives such as the use in agriculture requires an intense treatment that could be in many cases operational or economic unfeasible. The objective of this work is the theoretical research about the processes of stabilization of the sludge by anaerobic digestion and the methanogenic activity during the process. Through analysis of each step and contemplating each relevant factor in anaerobic digestion process in order to optimize them, we proposed a theoretical model of reactors capable of stabilize the sludge, reduce its volume and eliminate pathogens. The obtained configuration consists of two anaerobic reactors connected in series. The first one operates in the range mesophilic temperature (35 ° C) and has higher hydraulic retention time (25 days) working primarily in the stabilization of organic matter present in the sludge and producing biogas, whereas the second one operates in the thermophilic range (55 ° C) in order to eliminate pathogens, and to reduce the volume. The hydraulic retention time in the second reactor is lower (10 days). Both mesophilic and thermophilic processes were efficient in what was proposed, promoting the stabilization of organic matter present in the sludge and significant reduction of pathogens. As a final step with the sludge previously digested, it is indicated a final dehydration... (Complete abstract click electronic access below)

Ação dos inotrópicos e vasopressores na estabilização hemodinâmica em cães com choque séptico

Septic shock remains one of the most common challenges for the small animal practicing, presenting high mortality rates frequently associated with late identification of this syndrome, as well as an inappropriate treatment. In general, disruption of homeostasis occurs with an intense activation of inflammatory cascade, which leads to a damage to endothelial cells and an exposure to these cytokines, which will result in vasodilation and increased capillary permeability. Thus, there is a drop in blood pressure, even after aggressive fluid resuscitation. Therefore, drugs such as vasopressors, which act by increasing systemic vascular resistance, and inotropes, which have an effect on heart pump, should be administered in order to raise blood pressure, ensuring adequate tissue perfusion. The objective of this review was to gather information about the various drugs used in vasopressors/inotropes therapy, trying to explain the role of each one in different situations, in order to increase the survival rate in dogs affected with septic shock

A grande missão do século XIX e a escrita da história de Ernest Renan (1848-1863)

Pós-graduação em História - FCLAS

Estabilização de enzimas: uma abordagem

Enzyme stabilization is one critic point in basic and applied enzymology. The increasing interest in applying enzymes in industrial processes has fostered the search for biocatalysts with new properties or extreme stability. Enzyme stabilization can be achieved by different methods: isolating enzyme variants from organisms living in appropriate extreme environments (extremozymes), by protein engineering, chemical modification, use of additives, immobilization. This brief review aims to give a better understanding of those methods employed for enzyme stabilization.

Erosão em taludes de corte: métodos de proteção e estabilização

This work addresses the erosion caused by rain, describing their steps and factors that most influence the intensity and volume of transported material. The work presents the Universal Soil Loss Equation that quantifies the erosion, with the influence of different factors that affect it. The following notes the occurrence of this process in cutting slopes. They suffer with removal of the vegetation and surface soil layer, making them even more susceptible to this process. In this way it's necessary a protection model for the slopes. Some protection methods are presents with their main features, advantages and disadvantages, implementation process, especially to survey the approximate cost of each method and their application restrictions

Estudo mecânico comparativo da estabilização de fratura ilíaca com dois tipos de implantes (parafusos com placa de compressão dinâmica e parafusos associados ao polimetilmetacrilato) em hemipelves caninas sintéticas

Pós-graduação em Cirurgia Veterinária - FCAV

Deutsche Welle Brasil: construção da notícia e representação social

Zusammenfassung: In dieser Studie wurde untersucht, wie Nachrichten, die vom Nachrichtenportal Deutsche Welle in portugiesischer Sprache veröffentlicht werden, produziert werden und inwieweit sie Brasilien und Deutschland bezüglich kulturellen, politischen und wirtschaftlichen Aspekten repräsentieren. Der staatliche deutsche Auslandsrundfunk zeichnet sich durch seine internationale Reichweite aus und schafft Dialoge zwischen Deutschland und anderen Nationen. Angesichts der Schnittstelle zwischen Journalismus und Internet, haben wir uns auf den Sender Deutsche Welle, und dort vor allem auf die brasilianische Nachrichtenredaktion fokussiert. Dadurch war es möglich, den Kontext, in dem der analysierte journalistische Inhalt produziert wird, genau zu verstehen. Die Nachrichten wurden über einen Zeitraum von einer Woche im Portal gesammelt und anschließend einer quantitativen und qualitativen Inhaltsanalyse unterzogen (BARDIN, 2009). Die Ergebnisse zeigen, wie die Inhalte beide Länder repräsentieren und gleichzeitig die Redaktionsstrategie des Senders bestätigt wird. In Anbetracht des Effekts, den die Nachrichten und die übermittelte Repräsentation der beiden Länder in den Beiträgen auf die Meinungsbildung der Zielgruppe haben könnten, trägt diese Studie zum wissenschaftlichen Verständnis im journalistischen Bereich bei und regt zu weitere Studien über die Deutsche Welle an

Mario Pedrosa e a missão artística francesa de 1816

Pós-graduação em História - FCLAS

Início de ativação muscular de estabilizadores primários e a capacidade física para avaliar estabilização lombo-pélvica

Introduction: Due to the high incidence of low back pain without apparent cause, different approaches to evaluate the lumbar instability has been proposed, such as surface electromyography to determine pre-activation and the ability of lumbar stabilization through functional physical assessment. In this context, the objective of this study was to evaluate the early activation of the primary stabilizing muscles in subjects without low back pain, with different physical abilities function (CFF). Method: Study participants were 20 subjects with 19.8 ± 1.4 years, 55.7 ± 8.8 kilos, 1.66 ± 0.08 m, of both sexes. The subjects underwent six Tests Physical Function (TFF) and the Test of Fast Moving Flexion Arm (TMRFB) to capture the electromyographic activity of the lumbar multifidus muscles (LM) and internal oblique - lower fibers (HI). Were assigned weights for each functional test and the result of the physical capacity of the final functional subject ranged from 0 to 100%. In the analysis of TMRB was considered the onset time of activation between the ML and HI. Results: Regarding TFF 2 (10%) subjects were considered to have normal physical capacity, 6 (30%) with good physical ability and 12 (60%) with regular physical capacity or poor. As for TMRFB average values of initiation of muscle activation in 75% of subjects were within the limits to characterize the condition of pre-muscle activation. Conclusion:The results obtained in the TFF were low compared with the CFF of asymptomatic subjects evaluated. This fact does not mean that the condition of stabilization of the subject is appropriate. However, the results obtained in the electromyographic examination to suggest that 25% of asymptomatic subjects tested did not have a proper condition of lumbar stabilization.

Estabilização postural do olhar: efeitos da distância do objeto

The aim of the present study was to analyze the effects of looking at targets located at different distances on body oscillation during tasks of distinct difficulties. In Experiment 1, ten participants in quiet stance fixated targets in three conditions: No object-far (fixation on far-target without near-target), Object-near (fixation on near target with fartarget), and Object-far (fixation on far-target with near-target). Mean oscillations of trunk in anterior-posterior axis were smallest in the Object-near condition; the No object-far and Object-far conditions were similar. In Experiment 2, seven participants in kiba-dachi, a karate stance, were submitted to three conditions: Blindfolded, No object-far, and Object-near. Mean oscillations of head and trunk in anterior-posterior axis were smaller in the Object-near as compared to blindfolded condition; trunk oscillated more during No object-far than Object-near condition. The results support the notion that a simple posture is not automatically regulated by the optical flow, but different amounts of visual instability may be tolerated according to the fixation distance, regardless the presence of non-fixated objects; the control of a more difficult posture may also accommodate the effects of fixation distance.

Utilização de sistemas de refrigeração de sêmen equino na estabilização das amostras seminais previamente à congelação

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estabilização da fase perovskita e propriedades estruturais de filmes finos relaxores do sistema PLZT

Pós-graduação em Ciência dos Materiais - FEIS

Aristides de Sousa Mendes, o só e o único "Cônsul Desobediente": a história de um dos três "Justos entre as Nações"

Bordéus, 1940 Cidade de salvamento de uma Europa assolada e aflita pela barbaria nazista e a fúria de Hitler, Bordéus é a segunda casa de um homem a quem, por toda a eternidade, a França e o resto do mundo serão gratos: Aristides de Sousa Mendes. O cônsul Português teve a coragem de desobedecer às ordens proíbitivas de Salazar, salvando assim trinta mil pessoas, incluindo dez mil judeus, dos campos de concentração e extermínio. Sem distinção de sexo, raça, crenças religiosas ou políticas, de facto, assinou outros tantos vistos e passaportes para a liberdade a homens, mulheres e crianças. Por ocasião do 70º aniversário de este ato de generosidade, altruísmo e amor sem limites, a popularidade póstuma de Sousa Mendes ainda está a crescer, sobretudo graças ao empenho e à autoridade de órgãos como a Comissão Nacional Francesa em homenagem a Aristides de Sousa Mendes. Trata-se de glorificar o heroísmo de um Justo entre as Nações como Aristides de Sousa Mendes, cujo nome ressoará para sempre na história como sinónimo do epíteto de Cônsul Desobediente.