18 resultados para molecular accountant par excellence

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Trata-se de um resumo dos elementos que constituem a análise bachelardiana. Descreve a trajetória de Bachelard a partir do momento culminante de suas pesquisas científicas, em que rejeita a imaginação, considerada como o elemento falsificador do pensamento científico por excelência. Ocorre então uma reviravolta em suas posições a partir da Psychanalyse du Feu e Bachelard começa a valorizar a imaginação como outra forma de conhecimento, através do devaneio poético em torno do tema da chama de uma candeia e Bachelard mostra ter atingido uma serenidade e uma plenitude totais face à morte próxima This is summary of the elements which constitute Bachelard’s method of analysis. The author describes Bachelard’s trajectory starting from the culminating point of his scientific researches, in which he rejects imagination, considered as the falsifying element par excellence of scientific thought. Then an overturn occurs in his positions starting from psychanalyse du feu and he star to accept imagination at a greater value as another form of knowledge, through poetical divagation on the thee of the flame of a lamp. Bachelard shows to have reached full serenity and plenitude to face approaching death.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The aim of the study was to estimate the prevalence of Babesia bovis and Babesia bigemina in water buffaloes of the Marajó Island, State of Pará, Brazil. We used an indirectenzyme- linked immunosorbent assay (iELISA), with total antigen containing proteins outer surface, and polymerase chain reaction (qPCR), involving the use of SYBR Green based on amplification of a small fragment of the cytochrome b gene. The prevalence of positive animals in iELISA to B. bovis B. bigemina and mixed infection was 24.87% (199/800), 20.75% (166/800) and 18.75% (150/800), respectively. Using the PCR, the presence of B. bovis wasdetected in 15% (18/199) and B. bigemina in 16% (19/199) of animals, and of these, 58% (11/19) presented co-infected by the two agents. The results show a low prevalence of antibodies anti-B. bovis and anti-B. bigemina in water buffaloes from Marajó Island. However, it was observed that the agents of bovine babesiosis circulate in buffaloes, and these may act as reservoirs.

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The aim of the study was to test the molecular and serological prevalence of Anaplasma marginale in water buffaloes of the Marajó Island, State of Pará, Brazil. For serologic research were randomly selected 800 buffaloes and for molecular research 50 of these animals were randomly chosen. To quantify the serological prevalence we used the indirect enzyme linked immunosorbent assay (iELISA) with total antigen containing proteins outer surface. To quantify the prevalence molecular was used the polymerase chain reaction (PCR) involving gene amplification fragment larger surface protein 5 (MSP5). The prevalence of positive animals in iELISA was 25% (200/800). In the PCR we detected the presence of A. marginale in 2% (1/50) of animals. Although only one animal was positive in PCR, we found that it was negative in ELISA. The presence of the agent, even in low prevalence, shows that buffaloes can act as an important reservoir for transmission of the pathogen to cattle in northern Brazil.

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Erythrocharax altipinnis is described from the Serra do Cachimbo, Pará, Brazil. The new taxon is distinguished from all of the Characidae genera by having the pelvic bones firmly attached through the isquiatic processes; a nearly triangular hiatus in the musculature covering the anterior chamber of the swim bladder between the first and second pleural ribs (pseudotympanum); the pedunculate, notably expanded and distally compressed teeth in both jaws; circumorbital series represented by antorbital and four infraorbital bones with laterosensory canals not enclosed; a single tooth row in the premaxillary with the teeth perfectly aligned and similar in shape and cusp number; the first three branched dorsal-fin rays distinctly elongate in males; a bright red adipose and caudal fins in life; a conspicuous dark midlateral stripe extending from the opercle to the tip of the median caudal-fin rays; and by the absence of a humeral spot. The phylogenetic position of the new taxon is discussed using morphological and molecular datasets, with conflicting results of both approaches discussed. Additionally, a summarized discussion on the current problems in the Characidae taxonomy is presented and the principal biases in the morphological dataset are also discussed. © 2013 Netto-Ferreira et al.

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Bovine babesiosis is a tick-borne disease caused mainly by Babesia bovis and Babesia bigemina, which are associated to considerable economic losses in cattle herds worldwide. Approximately 60% of buffalo herds in South America are located in Northern Brazil. Little is known about the impact of babesiosis on buffalo herds in Brazil. The present work aimed to verify the occurrence of B. bovis and B. bigemina in 542 water buffaloes in the state of Pará, Northern Brazil, using molecular and serological techniques. The percentage of seropositive animals for B. bovis and B. bigemina was 41.2% and 19.0%, respectively, by ELISA. B. bovis and B. bigemina DNA were detected in 15 and 16% of sampled buffaloes, respectively. A high correlation (Kappa index of 0.9) between serological and molecular tests suggests that the combination of the utilized techniques in the present study is suitable for babesiosis diagnosis in an endemic unstable area. Significantly difference of positivity for serological and molecular assays was verified to localities and reproductive status of sampled animals, but not between buffalo breeds. The immune status of sampled buffaloes associated to the circulation of babesiosis agents in sampled population suggests that the studied area is at risk to clinical babesiosis outbreaks. Furthermore, this study demonstrated that this region can be classified as endemically unstable. © 2013 Elsevier B.V.

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