5,621 research outputs found

    Pediculose : falando sobre infestação

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    Orientadora : Dra. Vanessa ComassetoMonografia (especialização) - Universidade Federal do Paraná, Setor de Ciências da Saúde, Curso de Especialização em Saúde para Professores do Ensino Fundamental e MédioInclui referênciasResumo : Este trabalho irá abordar a pediculose, considerando ser este um assunto bastante relevante, dentro das escolas visto a frequência da infestação nos estudantes, bem como a pouca eficácia em combater o inseto, mesmo sendo este um assunto de longa data

    Huanglongbing dos citros: sintomas, bactérias associadas, vetores e diagnóstico.

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    Na publicação: Marcelo Lopes-da-Silva

    Effect of tube diameter and capillary number on platelet margination and near-wall dynamics

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    The effect of tube diameter DD and capillary number CaCa on platelet margination in blood flow at 37%\approx 37\% tube haematocrit is investigated. The system is modelled as three-dimensional suspension of deformable red blood cells and nearly rigid platelets using a combination of the lattice-Boltzmann, immersed boundary and finite element methods. Results show that margination is facilitated by a non-diffusive radial platelet transport. This effect is important near the edge of the cell-free layer, but it is only observed for Ca>0.2Ca > 0.2, when red blood cells are tank-treading rather than tumbling. It is also shown that platelet trapping in the cell-free layer is reversible for Ca0.2Ca \leq 0.2. Only for the smallest investigated tube (D=10μmD = 10 \mu\text{m}) margination is essentially independent of CaCa. Once platelets have reached the cell-free layer, they tend to slide rather than tumble. The tumbling rate is essentially independent of CaCa but increases with DD. Tumbling is suppressed by the strong confinement due to the relatively small cell-free layer thickness at 37%\approx 37\% tube haematocrit.Comment: 16 pages, 10 figure

    A INFLUÊNCIA DA CONCENTRAÇÃO SÉRICA DE IgG E DIFERENTES PROTOCOLOS DE ALEITAMENTO NO GANHO DE PESO DE NOVILHAS HOLANDESAS

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    Com o objetivo de se avaliar a influência da concentração sérica de IgG no ganho de peso de bezerras em fase de aleitamento e após um ano de vida, 45 bezerras Holandesas foram distribuídas em três baias coletivas com alimentadores automáticos e submetidas a três protocolos de aleitamento (Tratamentos experimentais) denominados de 4L,  que teve o fornecimento de quatro litros diários de sucedâneo lácteo; 6L, com seis litros; e AL, com fornecimento ad libitum. As bezerras entraram no experimento com cinco dias de idade e concentração de IgG que variou entre 13,4 e 43,7 mg/dL. O peso foi aferido semanalmente. Após o desmame todas as bezerras foram manejadas sob as mesmas condições até um ano de vida. Nessa fase, a mensuração do peso corporal foi feita mensalmente. Utilizou-se o delineamento inteiramente casualizado, correlação linear de Pearson, análise de variância ANOVA e testes de Tukey, e  t pareado a 5%. Não houve influência da IgG no ganho de peso ao desmame e também após um ano, entre os tratamentos e desconsiderando-se os tratamentos. Quanto aos protocolos de aleitamento, os tratamentos 6L e AL foram superiores no ganho de peso ao desmame, enquanto 4L e ALforam superiores após um ano

    The Cyprinodon variegatus genome reveals gene expression changes underlying differences in skull morphology among closely related species

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    Genes in durophage intersection set at 15 dpf. This is a comma separated table of the genes in the 15 dpf durophage intersection set. Given are edgeR results for each pairwise comparison. Columns indicating whether a gene is included in the intersection set at a threshold of 1.5 or 2 fold are provided. (CSV 13 kb

    GAPscreener: An automatic tool for screening human genetic association literature in PubMed using the support vector machine technique

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    <p>Abstract</p> <p>Background</p> <p>Synthesis of data from published human genetic association studies is a critical step in the translation of human genome discoveries into health applications. Although genetic association studies account for a substantial proportion of the abstracts in PubMed, identifying them with standard queries is not always accurate or efficient. Further automating the literature-screening process can reduce the burden of a labor-intensive and time-consuming traditional literature search. The Support Vector Machine (SVM), a well-established machine learning technique, has been successful in classifying text, including biomedical literature. The GAPscreener, a free SVM-based software tool, can be used to assist in screening PubMed abstracts for human genetic association studies.</p> <p>Results</p> <p>The data source for this research was the HuGE Navigator, formerly known as the HuGE Pub Lit database. Weighted SVM feature selection based on a keyword list obtained by the two-way z score method demonstrated the best screening performance, achieving 97.5% recall, 98.3% specificity and 31.9% precision in performance testing. Compared with the traditional screening process based on a complex PubMed query, the SVM tool reduced by about 90% the number of abstracts requiring individual review by the database curator. The tool also ascertained 47 articles that were missed by the traditional literature screening process during the 4-week test period. We examined the literature on genetic associations with preterm birth as an example. Compared with the traditional, manual process, the GAPscreener both reduced effort and improved accuracy.</p> <p>Conclusion</p> <p>GAPscreener is the first free SVM-based application available for screening the human genetic association literature in PubMed with high recall and specificity. The user-friendly graphical user interface makes this a practical, stand-alone application. The software can be downloaded at no charge.</p

    TRY plant trait database - enhanced coverage and open access

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    Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives

    Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

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    The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO

    Measurements of branching fraction ratios and CP-asymmetries in suppressed B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^- decays

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    We report the first reconstruction in hadron collisions of the suppressed decays B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^-, sensitive to the CKM phase gamma, using data from 7 fb^-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B^- -> D(-> K^+ pi^-)K^- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K) = [22.0 \pm 8.6(stat)\pm 2.6(syst)]\times 10^-3, R^+(K) = [42.6\pm 13.7(stat)\pm 2.8(syst)]\times 10^-3, R^-(K)= [3.8\pm 10.3(stat)\pm 2.7(syst]\times 10^-3, as well as the direct CP-violating asymmetry A(K) = -0.82\pm 0.44(stat)\pm 0.09(syst) of this mode. Corresponding quantities for B^- -> D(-> K^+ pi^-)pi^- decay are also reported.Comment: 8 pages, 1 figure, accepted by Phys.Rev.D Rapid Communications for Publicatio
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