979 resultados para Estágios supervisionados


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Objetivou-se determinar as medidas in vivo e na carcaça de ovelhas de descarte abatidas em diferentes estágios fisiológicos, assim como as possíveis correlações entre essas medidas objetivas (in vivo e na carcaça) e o peso corporal ao abate e da carcaça fria. Foram utilizadas 21 ovelhas da raça Santa Inês, distribuídas nos seguintes estágios fisiológicos: OL = ovelhas mantidas por 60 dias em lactação com seus cordeiros e abatidas um dia após o desmame dos mesmos; OSC = ovelhas que foram mantidas por 60 dias em lactação com seus respectivos cordeiros e mais um período aproximado de 30 dias sem os cordeiros e posteriormente abatidas; e ONP = ovelhas que permaneceram por 60 dias em confinamento e que não pariram durante o ano. Não se observou diferença entre os estágios fisiológicos na maioria das características medidas in vivo e na carcaça. O perímetro da garupa determinado na carcaça e o perímetro torácico, as larguras do peito e da garupa obtidos in vivo mostraram-se altamente correlacionados aos pesos corporal e de carcaça fria dos animais. Portanto, essas medidas podem auxiliar na determinação do peso corporal de ovelhas em diferentes estágios fisiológicos.

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The immature stages of Platyphora zonata (Germar, 1824) are described, with comments on habits.

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This study was conducted in an area of restinga in the municipality of Silo Vicente (SP). The study aimed to evaluate the seed rain in three different conditions of regeneration. Was selected the following conditions: High Forest of Restinga in the middle stage of regeneration, an area of clearing in the same condition mentioned above and a third in early stages of regeneration. hi each condition were installed 10 seed collectors made of wood and screen with 80% of shade, supported to a height of 20cm of soil. They were evaluated monthly for one yew; the densities of seed deposited in the collector these seedlings are identified and categorized based on their dispersion syndrome and successional classes. The Area of High Forest area was carried out a phytosociological survey to identify which seedlings present in the rain could be from these areas. It was found that the densities of seedlings are relatively low compared to other formations of the Atlantic rain forest, but consistent with other studies of the same type of vegetation used in the study. Regarding dispersal syndromes and successional classes, there was prevalence of the zoocoric syndrome and species of secondary successional classes. The results indicate that the area has good ability to maintain their succession dynamics.

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

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Avaliou-se o efeito das águas residuárias de suinocultura com concentrações de sólidos suspensos totais em torno de 6.000 mg L-1 (DQOtotal variando de 7.557 a 11.640 mg L-1) no desempenho de processo anaeróbio em dois estágios compostos por reator compartimentado (ABR) e reator de fluxo ascendente com manta de lodo (UASB), instalados em série, em escala-piloto (volumes de 530 e 120 L, respectivamente), submetidos a tempos de detenção hidráulica (TDH) de 56 a 18 h no primeiro reator e de 13 a 4 h no segundo reator. As eficiências médias de remoção de DQOtotal variaram de 71,1 a 87,5% no reator ABR e de 41,5 a 50,1% no reator UASB, resultando em valores médios de 86,8 a 94,9% para o sistema de tratamento anaeróbio em dois estágios com carga orgânica volumétrica (COV), na faixa de 5,05 a 10,12 kg DQOtotal (m³ d)-1, no reator ABR, e de 2,83 a 9,63 kg DQOtotal (m³ d)-1, no reator UASB. As eficiências de remoção de SST e SSV foram da ordem de 95,6%. O teor de metano no biogás manteve-se acima de 70% para os dois reatores. A produção volumétrica de metano máxima de 0,755 m³ CH4 (m³ d)-1 ocorreu no reator 1, com COV de 10,12 kg DQOtotal (m³ d)-1 e TDH de 18 h. Os valores médios de pH variaram na faixa de 7,2 a 8,0 para os efluentes dos reatores 1 e 2. Os ácidos voláteis totais mantiveram-se estáveis com concentrações abaixo de 200 mg L-1. Com variações abruptas e acentuadas de concentrações de SST e DQOtotal do afluente, os reatores mantiveram as eficiências de remoção de DQO e sólidos suspensos, em torno de 70%, e a qualidade do biogás, com 80% de CH4.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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Os objetivos neste experimento foram gerar informações sobre a composição física e as relações músculo:osso, músculo:gordura e porção comestível:osso do lombo de ovelhas abatidas em diferentes estágios fisiológicos, além das possíveis correlações entre as variáveis avaliadas neste estudo. Foram utilizadas 21 ovelhas Santa Inês, distribuídas nos respectivos estágios fisiológicos: OL = ovelhas que permaneceram por 60 dias em lactação com seus respectivos cordeiros e abatidas um dia após o desmame dos mesmos; OSC = ovelhas que permaneceram por 60 dias em lactação com seus respectivos cordeiros e por mais um período aproximado de 30 dias sem os cordeiros e posteriormente abatidas; e ONP = ovelhas que permaneceram por 60 dias em confinamento e que não pariram durante o ano. Os percentuais de músculos e gorduras intermuscular e comestível foram semelhantes entre os estágios fisiológicos. O abate de ovelhas em diferentes estágios fisiológicos alterou a relação porção comestível:osso do lombo. Maiores proporções de gordura subcutânea corresponderam a menores quantidades de gordura intermuscular no lombo ou vice-versa.

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Mansonian schistosomiasis is caused by an intravascular digenetic trematode Schistosoma mansoni. Praziquantel (PZQ) and oxamniquine (OXA) are the drugs of choice for the treatment of this disease. However, both drugs are subject to some limitations in their action and cases of tolerance and resistance have been reported. Moreover, tolerance and resistance cases have been reported. For this reason, there is an urgent need for research on new alternatives aimed at improving the action of existing drugs, such as the incorporation of these drugs into liposomes. In this study, the efficiency of action of liposome- encapsulated praziquantel (lip.PZQ) on oviposition by S. mansoni, strain BH, was assessed in Mus musculus mices (SPF Swiss mice). Four PZQ and lip.PZQ doses (47; 60; 250 e 300mg/kg) were tested. Some mice were treated 30 days post-infection and others after 45 days. The oogram analyses showed that the most effective lip.PZQ treatment was 300mg/kg dose given on the 45th day post infection, which reduced the number of S. mansoni eggs per gram of tissue.

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The chronic kidney disease (CKD) it is characterized by irreversible structural lesions that can develop progressively for uremia and chronic renal failure (CRF). In the CRF it happens the incapacity of executing the functions of maintenance of the electrolyte balance and acid-base, catabolitos excretion and hormonal regulation appropriately. When the mechanism basic physiopathology of the renal upset is analyzed, it is observed that present factors, predispose to the unbalance oxidative. Most of the time, the renal patient comes badly nurtured, with lack in reservations of vitamins and minerals, what reduces the antioxidant defense mechanisms, what favors the installation of the renal oxidative stress, with the formation of species you reactivate of reactive oxygen species (ROS), substances these potentially harmful to the organism. The reduction of the glomerular filtration rate (GFR) in the evolution of CKD in dogs and cats is a component for the installation of the renal oxidative stress. The ROS possesses important action in the kidneys, and these substances are highly reactivate, and when presents in excess damage lipids, proteins, DNA and carbohydrate, driving functional and structural abnormalities taking the cellular apoptosis and necrosis. Against the harmful potential action of these substances you reactivate, she becomes fundamental a delicate control of his production and consumption in the half intracellular, in other words, a balance of his concentration intra and extracellular. That is possible due to the activity of the antioxidants. Like this, to present literature revision had as objective describes the participation of the oxidative stress in CRF, as well as the mechanisms defenses against the harmful action of those substances.

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This paper discussed the professor's role in teacher education during the trainee activities. Several scenarios were identified in the literature and the potential improvement that tutorial actions could have was highlighted. Three main dimensions of tutorial actions were proposed: education is to advise for life, to advise is to support the student to perceive alternative processes, attitudes and perceptions and to advise is to develop the student towards his or her learning process. It is proposed that the professor exercise educational tutoring and not only specific tutoring, these last ones usually focused on the classroom only.

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The purposes of this study were to assess the influence of stage selection from the incremental phase and the use of peak lactate after hyperlactatemia induction on the determination of the lactate minimum intensity (iLACmin). Twelve moderately active university students (23±5 years, 78.3±14.1 kg, 175.3±5.1 cm) performed a maximal incremental test to determine the respiratory compensation point (RCP) (initial intensity at 70 W and increments of 17.5 W every 2 minutes) and a lactate minimum test (induction with the Wingate test, the incremental test started at 30 W below RCP with increments of 10 W every 3 minutes) on a cycle ergometer. The iLACmin was determined using second order polynomial adjustment applying five exercise stage selection: 1) using all stages (iLACmin P); 2) using all stages below and two stages above iLACminP(iLACminA); 3) using two stages below and all stages above iLACminP(iLACminB); 4) using the largest and same possible number of stages below and above the iLACminP(iLACminI); 5) using all stages and peak lactate after hyperlactatemia induction (iLACminD). No differences were found between the iLACminP(138.2±30.2 W), iLACminA(139.1±29.1 W), iLACminB(135.3±14.2 W), iLACminI(138.6±20.5 W) and iLACmiD(136.7±28.5 W) protocols, and a high level of agreement between these intensities and iLACminPwas observed. Oxygen uptake, heart rate, rating of perceived exertion and lactate corresponding to these intensities was not different and was strongly correlated. However, the iLACminBpresented the lowest success rate (66.7%). In conclusion, stage selection did not influence the determination of iLACmin but modified the success rate. © Creative Commom.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)