108 research outputs found

    Producao de ovos de vermes gastrintestinais em vacas Nelore, durante o periodo periparto.

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    bitstream/item/138554/1/COT-27.pdfCNPGC

    Efeito do adulto da cigarrinha Zulia entreriana (berg.1879) na produção e qualidade da Brachiaria decumbens cv. australiana.

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    bitstream/item/137466/1/PESQ-EM-ANDAMENTO-17.pd

    Avaliação preliminar de parâmetros epidemiológicos da tristeza parasitaria bovina no Mato Grosso do Sul.

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    Epidemiologia; Bovino; Tristeza parasitaria; Praga; Sanidade; America do Sul; Brasil; Mato Grosso do Sul.bitstream/item/137587/1/PESQ-EM-ANDAMENTO-38.pdfCNPGC

    Congenital cystic lesions of the biliary tree

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    OBJECTIVE: The purpose of this essay is to illustrate the imaging findings of congenital cystic lesions of the biliary tract. CONCLUSION: Congenital cystic lesions of the biliary tract include ductal plate malformations and choledochal cysts and can be recognized with characteristic imaging findings and basic knowledge of the embryologic development of the biliary tree

    Produção de ovos de nematódeos gastrintestinais em vacas nelore, durante o período periparto.

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    Foi avaliada a influencia das epocas de pre e pos-parto sobre a contagem de ovos de mematodeos nas fezes de bovinos de corte. Utilizaram-se 32 vacas Nelore prenhes, sendo 8 de primeira, 12 de segunda e 12 de terceira cria, com o parto previstao para o mes de outubro. Para determinacao do numero de ovoso por grama de fezes (OPG) e coproculturas, foi feita uma coleta de fezes antes do parto (aproximadamente quinze dias antes), uma por ocasiao do parto e seis coletas semanais apos o parto. Nao houve interacao significativa entre o numero de crias das vacas com os valores de OPG nas diferentes coletas. Nao foi observada diferenca significativa, nos valores de OPG, antes e depois do parto, apesar de ter havido uma tendencia de aumento no dia do parto, e nas duassemanas apos o parto. As vacas de primeira cria apresentaram media de OPG maiores do que as vacas de segunda e terceira crias, tanto antes como depois do parto (P<0,05). A Cooperia foi o nematodeo que mais contribuiu para o aumento de OPG. Levando-se em consideracoes o aumento de OPG das vacas e estudos epidemiologicos anteriores, e recomendada a dosificacao das vacas no mes de julho ou agosto.Título em inglês: The production of eggs by gastrointestinal nematodes in Nellore cows, during the peri-parturient period

    One-shot diagnostic and prognostic assessment in intermediate- to high-risk acute pulmonary embolism: The role of multidetector computed tomography

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    INTRODUCTION: Contrast-enhanced multidetector computed tomography (MDCT) is useful for the diagnosis of pulmonary embolism (PE). However, current guidelines do not support its use for risk assessment in acute PE patients. OBJECTIVES: We compared the prognostic impact of MDCT-derived indices regarding medium-term mortality in a population of intermediate- to high-risk PE patients, mostly treated by thrombolysis. METHODS: Thirty-nine consecutive patients admitted to an intensive care unit with acute PE were studied. All patients had a pulmonary MDCT on admission to the emergency room as part of the diagnostic algorithm. We assessed the following MDCT variables: right ventricular/left ventricular diameter (RV/LV) ratio, arterial obstruction index, pulmonary artery-to-aorta diameter ratio and azygos vein diameter. A 33-month follow-up was performed. RESULTS: Mean age was 59.1±19.6 years, with 80% of patients receiving thrombolysis. Follow-up all-cause mortality was 12.8%. Of the MDCT-derived variables, only the RV/LV ratio had significant predictive value, being higher in patients who suffered the endpoint (1.6±0.5 vs. 1.9±0.4, p=0.046). Patients with an RV/LV ratio ≥1.8 had 11-fold higher medium-term all-cause mortality (3.8% vs. 38.8%, p<0.001). Regarding this endpoint, the c-statistic was 0.78 (95% CI, 0.60-0.96) for RV/LV ratio and calibration was good (goodness-of-fit p=0.594). No other radiological index was predictive of mortality. CONCLUSIONS: MDCT gives the possibility, in a single imaging procedure, of diagnosing and assessing the prognosis of patients with intermediate- to high-risk PE. Although further studies are needed, the simple-to-calculate RV/LV ratio has good discrimination and calibration for predicting poorer outcomes in patients with acute PE

    Epidemiologia dos nematódeos gastrintestinais em bovinos de corte nos cerrados e o controle estratégico no Brasil.

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    Prevalência das espécies. OPG e imunidade adquirida. Larvas na pastagem. Hipobiose. Mortalidade de animais. Integração entre os helmintos do abomaso. Anorexia. Faixa etária, prejuízos e controle. Custo/Benefício.bitstream/item/104809/1/Epidemiologia-dos-nematoideos-gastrintestinais.pd

    Níveis de anticorpos anti-Babesia Bigemina e Babesia bovis em bezerros da raça Nelore, Ibagé e cruzamentos de nelore.

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    Foram analisados pela tecnica de anticorpos fluorescentes, os soros dos bezerros da raca Nelore, Ibage e cruzamentos de Nelore x Fleckvieh, Nelore x chianina e Nelore x Charoles, do nascimento ao desmame, com a finalidade de determinar os niveis de imunoglobolinas anti-Babesia bigemina e Babesia bovis. No periodo de tres a quatorze dias de vida foi observa correlacao positiva e significnate entre os niveis de imunoglobulinas circulantes das vacas e os anticorpos serios dos bezerros contra B. bigemina e/ou B. bovis, em algumas racas e cruzamentos. A media do titulo sorologico dos grupos experimentais apresentou um descrecimo nos niveis de anticorpos colostrais entre 28 e 56 dias de idade contra B. bigemina e entre 56 e 84 dias anti-B.bovis. A producao ativa deanticorpos contra B bigemina foi observada aos 84 dias e aos 112 contra B.bovis. Em geral os niveis de anticorpos anti-B bigemina foram mais elevados que o da B. bovis e houve maior semelhanca na curva de anticorpos dos bezerros da raca Nelore e seus cruzamentos que os da raca Ibage. Embora a regiao seja considerada area de estabilidade enzootica, conclui-se que existe um periodo critico de baixa resistencia humural, no qual podem ocorrer casos clinicos de babesiose.Título em inglês: Antibody levels anti-babesia bigemina and babesia bovis in calves of Nelore and Ibagé breeds and Nelore crosses

    Effects of Etching on Zircon Grains and Its Implications for the Fission Track Method

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    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Studies of zircon grains using optical microscopy, micro-Raman spectroscopy, and scanning electron microscopy (SEM) have been carried out to characterize the surface of natural zircon as a function of etching time. According to the surface characteristics observed using an optical microscope after etching, the zircon grains were classified as: (i) homogeneous; (ii) anomalous, and (iii) hybrid. Micro-Raman results showed that, as etching time increases, the crystal lattice is slightly altered for homogeneous grains, it is completely damaged for anomalous grains, and it is altered in some areas for hybrid grains. The SEM (energy dispersive X-ray spectroscopy, EDS) results indicated that, independent of the grain types, where the crystallinity remains after etching, the chemical composition of zircon is approximately 33% SiO2:65% ZrO2 (standard natural zircon), and for areas where the grain does not have a crystalline structure, there are variations of ZrO2 and, mainly, SiO2. In addition, it is possible to observe a uniform surface density of fission tracks in grain areas where the determined crystal lattice and chemical composition are those of zircon. Regarding hybrid grains, we discuss whether the areas slightly altered by the chemical etching can be analyzed by the fission track method (FM) or not. Results of zircon fission track and U-Ph dating show that hybrid and homogeneous grains can be used for dating, and not only homogeneous grains. More than 50 sedimentary samples from the Bauru Basin (southeast Brazil) were analyzed and show that only a small amount of grains are homogeneous (10%), questioning the validity of the rest of the grains for thermo-chronological evolution studies using zircon FTM dating.665545551Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

    Correction to. Magnetic resonance imaging for clinical management of rectal cancer: Updated recommendations from the 2016 European Society of Gastrointestinal and Abdominal Radiology (ESGAR) consensus meeting

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    Objectives: To update the 2012 ESGAR consensus guidelines on the acquisition, interpretation and reporting of magnetic resonance imaging (MRI) for clinical staging and restaging of rectal cancer. Methods Fourteen abdominal imaging experts from the European Society of Gastrointestinal and Abdominal Radiology (ESGAR) participated in a consensus meeting, organised according to an adaptation of the RAND-UCLA Appropriateness Method. Two independent (non-voting) Chairs facilitated the meeting. 246 items were scored (comprising 229 items from the previous 2012 consensus and 17 additional items) and classified as ‘appropriate’ or ‘inappropriate’ (defined by ≥ 80 % consensus) or uncertain (defined by < 80 % consensus). Results: Consensus was reached for 226 (92 %) of items. From these recommendations regarding hardware, patient preparation, imaging sequences and acquisition, criteria for MR imaging evaluation and reporting structure were constructed. The main additions to the 2012 consensus include recommendations regarding use of diffusion-weighted imaging, criteria for nodal staging and a recommended structured report template. Conclusions: These updated expert consensus recommendations should be used as clinical guidelines for primary staging and restaging of rectal cancer using MRI
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