1,720,956 research outputs found
Brote de coccidiosis aguda en cabritos en el departamento Pilcaniyeu, provincia de Río Negro, Argentina
Get PDFSe describe un brote de coccidiosis aguda en cabritos Angora en un establecimiento minifundista ubicado en el departamento de Pilcaniyeu, provincia de Río Negro, Argentina. En el hato compuesto por 14 madres y 17 crías, se produjo la muerte de tres cabritos de un mes de edad luego de 24-36 horas de iniciados los síntomas que consistieron en anorexia, debilidad general y postración. Se realizó la necropsia de un cuarto cabrito agónico con similar sintomatología detectándose la presencia de nódulos blanquecinos tapizando la mucosa del íleon y contenido hemorrágico en ciego. A fin de realizar un diagnóstico poblacional se tomaron muestras de materia fecal de los 13 cabritos asintomáticos restantes. Los hallazgos macroscópicos, microscópicos y parasitológicos determinaron que el brote fue debido a una infección mixta aguda por Eimeria arloingi y E. ninakohlyakimovae. La ausencia de sintomatología clásica de diarrea y el curso agudo caracterizaron al presente caso como un brote atípico.An outbreak of acute coccidiosis in Angora goat kids in a small farm in Pilcaniyeu, Rio Negro Province in Argentina is described. In a flock of 14 adult goats and 17 kids, three one-month-old goat kids died within 24-36 hours after the onset of clinical signs, such as anorexia, weakness and
recumbency. A fourth agonic goat kid with similar clinical signs was necropsied. Whitish nodular polyps in the ileum and hemorrhagic content in the cecum were found. Fecal samples from 13 asymptomatic kids were taken to reach a flock diagnosis. The macroscopic, microscopic and parasitological findings determined a mixed Eimeria arloingi and E. ninakohlyakimovae infection. This outbreak was considered atypical due to its acute course and the absence
of diarrhea.Estación Experimental Agropecuaria BarilocheFil: Martinez, Agustin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Producción Animal. Grupo Sanidad Animal; ArgentinaFil: Larroza, Marcela Patricia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Producción Animal. Grupo Sanidad Animal; ArgentinaFil: Cabrera, Francisco Raúl. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Area de Produccion Animal. Grupo de Sanidad Animal; ArgentinaFil: Subiabre, Marcos Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Agencia de Extensión Rural Bariloche; ArgentinaFil: Robles, Carlos Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Area de Produccion Animal. Grupo de Sanidad Animal; Argentin
Preselection of high and low ovulatory responders in sheep multiple ovulation and embryo transfer programs
No full textThe present study evaluated the feasibility of carrying out an easy-to-handle and cost-efficient test for the preselection of high– and low–ovulatory responder ewes under superovulatory protocols. The test was based on the assessment of the number of ovulations obtained in response to the administration of a single-shot eCG treatment. The predictive value of the test was determined by comparing the number of ovulations with yields obtained in response to a multiple-dose FSH treatment. In addition, the study determined possible effects of follicular status at first FSH dose and their relationship with subsequent ovarian response. A total of 31 Merino ewes received hormonal treatment comprising the administration of 800 IU of eCG at the end of progestative treatment. Twenty-three days later, multiple-dose FSH treatment (80-mg FSH, in six decreasing doses between Days 12 and 14 of a second progestative treatment) was applied to the same ewes. The study showed a significant relationship between the number of corpora lutea obtained in response to eCG treatment with respect to those obtained in response to FSH treatment (r = 0.791; P 0.05). Hence, there was a tendency for a higher mean of grades 1 and 2 embryos in high-responder in relation to low-responder ewes (6.1 ± 3.8 and 3.7 ± 4.0, respectively; P 0.05). However, a negative low relationship was found between the presence of large follicles and the ovulation rate in response to FSH treatment (r = −0.361; P < 0.05). In conclusion, the results show the feasibility of carrying out an easy-to-handle and cost-efficient procedure for the preselection of embryo donors. The procedure was based on high recurrence rate between hormonal treatments, which in turn accounts for a distinctive ewe ovulatory response.Fil: Bruno Galarraga, Maria Macarena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Laboratorio de Reproducción de Rumiantes Menores; ArgentinaFil: Cueto, Marcela Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Laboratorio de Reproducción de Rumiantes Menores; ArgentinaFil: Pereyra Bonnet, Federico. Hospital Italiano de Buenos Aires. Instituto de Ciencias Básicas y Medicina Experimental; ArgentinaFil: Subiabre, Marcos Sebastian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Laboratorio de Reproducción de Rumiantes Menores; ArgentinaGonzález-Bulnes, Antonio. Subdirección General de Investigación y Tecnología. Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria. Departamento de Reproducción Animal; Españ
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
- …
