Remoção de N-amoniacal em baixas concentrações de oxigênio dissolvido a partir do efluente de frigorífico bovino

This work aimed to develop a biological system for removal of ammonia nitrogen operating at low concentrations of dissolved oxygen. Thus, a biological upflow vertical reactor was built, in which the affluent pass through the support media until the top. Sludge from an anaerobic stabilization pond of a slaughterhouse unit in the city of Presidente Prudente - SP was used as inoculum. Initially the system operated in batch and afterwards in a continuous flow with different HRT. For feeding the reactor, an initial phases was adopted a synthetic culture media, described by Martins (2007), in order to establish the ideal conditions for the development of Anammox bacteria and subsequently, submitted to the system a slugde effluent of slaughterhouse. The results showed significant removal efficiency of N-NH4+, especially in the phase without recirculation of culture media, with an average of 71% removal, with the proportion of removal of N-NH4 +:N-NO2- average 1: 1,69. For the period of operation with effluent from the slaughterhouse, were not obtained satisfactory results, without confirmation of the proliferation of Anammox bacteria in the system, due to the high presences of organic matter in the same confirmed by high concentrations of COD

Avaliação dos efeitos renais do extrato aquoso de Agaricus blazei Murrill em ratos Wistar in vivo

O Agaricus balzei Murrill (ABM), comumente conhecido como cogumelo-do-sol, tornou-se popular, devido sua utilização no tratamento de diversas doenças, uma vez que a populaçao em geral lhe atribui diversos efeitos benéficos. Sendo assim, o cogumelo em questão é bastante estudado pelos pesquisadores, na tentativa de validar esses possíveis efeitos medicinais. O presente trabalho pretendeu avaliar os efeitos renais e adicionalmente os parâmetros cardiovasculares, analisando os efeitos do extrato aquoso de ABM em ratos Wistar in vivo. Estes estudos foram realizados em gaiolas metabólicas e os animais divididos em dois grupos: controle (n=8), onde os ratos recebiam uma picada para simular a injeção e experimental (n=10),onde os ratos recebiam 1mL de extrato aquoso à 2% por via intraperitoneal, ao longo do período tratado. Foram avaliados: o fluxo urinário de 24h, carga excretada de sódio (Qe Na+) e carga excretada de potássio (Qe K+) durante o período basal (30dias) e o período tratado (60 dias). Já os parâmetros cardiovasculares foram mensurados (com o sistema BIOPAC), ao fim do período de 60dias de tratamento. Por meio destas análises foi possível registrar uma queda aguda de pressão arterial nos ratos do grupo experimental, durante 15min, nesses ratos. Também foram observadas as respostas barorreflexas e a resposta bradicárdia foi menos acentuadas no grupo experimetal após a administração de fenilefrina (5μg/kg) em comparação ao grupo controle (p<0,05). Os resultados de fluxo urinário de 24h, Qe Na+ e Qe K+ demostraram que o extrato aquoso de ABM foi capaz de promover um aumento significativo (p<0,05) de 36%, 20% e 22%, respectivamente. Os resultados aqui apresentados, indicam que esse extrato tem princípios ativos natriuréticos e, além disso, o extrato apresentou uma redução acentuada após 15min da injeção... (Resumo completo, clicar acesso eletrônico abaixo)

Fatores indutores e supressores da eritropoiese em caninos doentes renais crônicos

Pós-graduação em Medicina Veterinária - FCAV

Fatores indutores e supressores da eritropoiese em caninos doentes renais crônicos

Pós-graduação em Cirurgia Veterinária - FCAV

Avaliação da remoção de sulfametoxazol, diclofenaco e 17β-estradiol em água por meio de processo oxidativo com cloro

Pós-graduação em Engenharia Civil - FEIS

Cirurgia estética para remoção de hiperplasia gengiva: granuloma piogênico

The pyogenic granuloma, a lesion considered hyperplastic regenerative inflammatory reaction is a finding commonly found in the oral cavity, affecting large numbers of individuals, being more prevalent in females. But its pathogenesis is not well defined and may be associated with numerous factors that stimulate tissue proliferation. Correct diagnosis and treatment plan are essential for success in approach, restoring function and aesthetics to the periodontal tissues. In agreement with the literature, the most common treatment and greater predictability is surgical removal, which involves resection of the lesion, together with its base inserted into the underlying tissue, periosteum and bone tissue. However, the excision can promote aesthetic defects, particularly in anterior regions where it is most affected. This article reports on the importance of a correct surgical approach for removal of pyogenic granuloma in the region of the interdental papilla between teeth 42 and 43, resulting in a good anatomical result and aesthetic.

Avaliação da remoção de sulfametoxazol, diclofenaco e 17β-estradiol em águas por adsorção em carvão ativado granular

Pós-graduação em Engenharia Civil - FEIS

Determinação da carga viral em transplantados renais como parâmetro preditivo para o desenvolvimento da doença infecciosa por Citomegalovírus

Pós-graduação em Microbiologia - IBILCE

Caracterização térmica e físico-química do sistema argila-8-hidroxiquinolina na remoção de íons Fe(III), Ni(II) e Co(II)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Alterações ultrassonográficas renais e vesicais de ovinos confinados e suplementados com cloreto de amônio

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo comparativo in vitro da resistência à remoção de grampos circunferenciais aplicados sobre dentes íntegros e restaurados com resina composta

An experimental study was undertaken in arder to find out lhe behavior of the required force to yield dislodgement of circumierential clasps of removable partial dentures ou two groups of samples. 1 with retentive terminais engaging and acting ou enamel 2 with retentive terminais engaging on enamel and acting on composite resm With this aim a device was designed based on a sewing machine (brand name Elgin) that could repeatedly simulate lhe introduction-removal movement of circunferencial clasps ou the samples. ln addiction the device had a platform to sustain the samples and permit measurements, a cycle counter and a dynamometer. The samples were constructed by inclusion in dental stone of extracted natural molar teeth whose retentive areas were ou natural enamel or composite resin addictions.The clasps were fabricated from wax ups of resin and wax and were cast with chromium cobalt alloy. The composite resin used was one of the last generation, monomodal type, photopolymerized and binded to the enamel by the acid etching technique. Tests were carried out in aqueous enviroment. Is was established a maximum of 5.000 cycles for each of the samples. Observatins were made from 100 to 100 cycles until 2.000 and from 200 to 200 cycles to 5.000. Results showed that variations in the amount of the required force for dislodgement of the clasps from the samples during the test periods had no significancy eather to those with retentive areas on the enamel or to those with retentive fabricated with addictions of composite resin

Utilização de turfa para remoção de metais potencialmente tóxicos de uma empresa recicladora de plásticos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O efeito do consumo abusivo de alvool no torque de remoção de implantes de titânio

Studies have reported that alcohol may lead to imbalance in bone formation and resorption, however, its effects on osseointegration of titanium implants continues to be an inconclusive subject. In this context, the aim of this study was to make a biomechanical evaluation of the effect of abusive alcohol consumption on the removal torque of osseointegrated titanium implants. Male Wistar rats (n=30) were divided into two experimental groups (15 each) receiving only water (Control) or 36% alcohol solution oral administration. Thirty days later, all animals were submitted to titanium implant (2.2 mm x 4 mm) placement in the right and left tibiae. The surgical alveoli were prepared with a 2 mm drill mounted in a counter-angle hand-piece (20:1 ratio, 35 Ncm torque at 1200 rpm) under abundant cooling. Five animals from each group were euthanized at 15, 30, and 60 days. Tibiae were submitted to reverse torque analysis. Data obtained were submitted to statistical analysis by the non-parametric Kruskal-Wallis and Dunn Tests (p < 0.05). Animals in the alcohol group presented lower removal torque values when compared with control group animals for all periods tested (p < 0.05). It can be concluded that abusive alcohol consumption can reduce the removal torque of titanium implants placed in rat tibiae, suggesting that alcohol may interfere in the osseointegration process of titanium implants.