1,720,960 research outputs found
Preval?ncia de dirofilaria immitis em c?es do canil municipal de Sousa, semi?rido da Para?ba
Get PDFO parasito Dirofilaria immitis ? um nemat?deo que afeta os sistemas circulat?rio, linf?tico e tecido subcut?neo de c?es, e ? transmitido por mosquitos dos g?neros Aedes, Culex e Anopheles, Descrito na literatura com uma maior preval?ncia em regi?es onde h? condi??es para a prolifera??o do vetor, sua ocorr?ncia em ?reas consideradas antes n?o end?micas gera questionamentos. O objetivo deste trabalho foi determinar a preval?ncia de D. immitis nos c?es eutanasiados do Canil Municipal de Sousa-PB, no per?odo de abril a dezembro de 2018, mediante a pesquisa de microfil?rias e parasitas adultos, associado a dados epidemiol?gicos referentes aos animais e bairros de onde foram capturados. O diagn?stico foi realizado atrav?s de esfrega?os de sangue perif?rico e venoso, teste de Knott modificado e necropsia. Foram considerados positivos, c?es que apresentaram positividade em pelo menos um dos testes. De 45 c?es necropsiados, 18 foram positivos, revelando preval?ncia de 40%. Todos os 18 c?es apresentaram parasitas adultos durante a necropsia, cinco animais foram positivos no teste de Knott modificado, quatro em esfrega?o de sangue venoso e apenas em um no esfrega?o de sangue perif?rico. Os resultados foram avaliados pelo m?todo de concord?ncia Kappa. Os fatores de risco epidemiol?gicos foram avaliados pela an?lise univariada e multivariada, com diferen?a estat?stica em rela??o a idade (c?es maiores de 12 meses) (p=0,138), ac?mulo de ?gua (p=0,073) e saneamento b?sico inadequado nos bairros (p=0,127). Concluiu-se que a preval?ncia de D. immitis nos c?es do Canil Municipal de Sousa foi alta e os bairros com maior n?mero de animais positivos foram Alto do Cruzeiro e Angelim. A necropsia foi considerada o exame que mais diagnosticou a parasitose. Vari?veis como a idade do animal, ac?mulo de ?gua e saneamento b?sico inadequado foram considerados fatores relevantes para a ocorr?ncia dessa parasitose
Caracteriza??o epidemiol?gica, cl?nica, ultrassonogr?fica e natomopatol?gica de pitiose gastrointestinal em c?es
No full textO objetivo deste trabalho foi descrever os achados epidemiol?gicos, cl?nicos, anatomopatol?gicos, ultrassonogr?ficos, histoqu?micos e imuno-histoqu?micos de pitiose gastrointestinal em c?es diagnosticados no Laborat?rio de Patologia Animal do IFPB. No per?odo de 2014 a 2022 foram diagnosticados cinco casos da doen?a e o diagn?stico definitivo foi estabelecido pela imuno-histoqu?mica. Desses casos, foram extra?dos dados epidemiol?gicos e cl?nicos, exame ultrassonogr?fico, al?m das les?es macrosc?picas e microsc?picas. Para caracteriza??o morfotintorial do P. insidiosum foram realizadas colora??es histoqu?micas como metenamina nitrato de prata de Grocott (GMS) e ?cido peri?dico de Schiff (PAS). Em um dos casos foi realizado exame citol?gico durante a necropsia. Na imuno histoqu?mica foi utilizado anticorpo prim?rio policlonal anti-P. insidiosum na dilui??o de 1:1.000. Macroscopicamente as les?es caracterizam-se por espessamento transmural das camadas do est?mago; duodeno, jejuno e ?leo; ceco, c?lon e reto; e linfadenomegalia com massas irregulares, firmes e amareladas. Citologicamente foram observados acentuado infiltrado inflamat?rio piogranuulomatoso com c?lulas gigantes multinucleadas e imagens negativas de estruturas tubuliformes sugestivas de hifas de P. insidiosum. Histologicamente, havia enterite e gastrite piogranulomatosa ou granulomatosa associada a imagens negativas de estrutura tubuliformes sugestivas de hifas de P. insidiosum no citoplasma de c?lulas gigantes, macr?fagos e livres em ?reas de necrose por vezes circundadas por Splendore Hoeppli. Na colora??o histoqu?mica de GMS, as hifas foram coradas em preto, eram largas, raramente septadas e ramificadas e no exame de imuno-histoqu?mica foram marcadas em marrom. Em nenhum dos casos as hifas foram coradas pelo PAS. Conclui-se que a imuno-histoqu?mica permitiu a identifica??o espec?fica de P. insidiosum em amostras de tecido, confirmando o diagn?stico sugerido por caracter?sticas cl?nicas, epidemiol?gicas e ultrassonogr?ficas. Pitiose gastrointestinal em c?es deve ser inclu?da nos diagn?sticos diferenciais de doen?as que cursam com sinais gastrointestinais que ocorrem em ?reas end?micas
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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