1,720,961 research outputs found
Chemical immobilization and physiological evaluation of wild white eared opossums, Didelphis albiventris (Lund, 1841) of Santa Fe province, Argentina
Get PDFThe objective of this study was to evaluate the effectiveness with a protocol for ketamine-diazepam anesthesia in 42 free life of D. albiventris specimens and determine what variables affect their success. The response variables evaluated were: if a dose supplementation was necessary and time needed for the desired effect of the drug in minutes. The independent variables were sex, weight, age, body condition, total length, heart rate, respiratory rate, temperature and activity. Larger sized individuals were more likely to need supplementation (p=0.0686). The females needed more time to reach the desired anesthetic plane (p=0.0008). Furthermore, the time needed to obtain the desired effect was greater in animals with heart rate and body temperature (p=0.0068, p=0.0013). The same situation occurred in individuals of greater weight and age (p=0.0057, p=0.0038).Fil: Tarragona, E.L. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades; ArgentinaFil: Tarragona, E.L. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Zurvera, D. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades; ArgentinaFil: Zurvera, D. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Manzoli, D.E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades; ArgentinaFil: Manzoli, D.E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Manzoli, D.E. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Correa, A.I. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades; ArgentinaFil: Correa, A.I. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Delgado, A.R. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Cátedra de Bacteriología y Micología; ArgentinaFil: Delgado, A.R. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Magni, C. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Magni, C. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Cátedra de Patología; ArgentinaFil: Beldomenico, P.M. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades; ArgentinaFil: Beldomenico, P.M. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo de estudio dirigido "Capibara"; ArgentinaFil: Beldomenico, P.M. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaEl objetivo de este trabajo fue evaluar la eficacia de un protocolo de anestesia con ketaminadiazepam en 42 ejemplares de D. albiventris de vida libre y determinar cuáles eran las variables que repercuten en su éxito. Las variables respuesta evaluadas fueron: si fue necesaria suplementación de dosis y tiempo al efecto deseado del fármaco en minutos. Las variables independientes fueron: sexo, peso, edad, condición corporal, largo total, frecuencia cardiaca, frecuencia respiratoria, temperatura y actividad. Individuos de talla mayor presentaron mayor probabilidad de necesitar suplementación (p=0.0686). Las hembras necesitaron más tiempo para alcanzar el plano anestésico deseado (p=0.0008). Además, el tiempo transcurrido para obtener el efecto deseado fue mayor en aquellos animales que presentaban frecuencia cardiaca y temperatura corporal elevada (p=0.0068, p=0.0013). La misma situación ocurrió con los individuos de mayor peso y edad (p=0.0057, p=0.0038)
Haematological parameters of the White-eared Opossum, Didelphis albiventris (Lund, 1841), wild populations of central Argentina
Get PDFThe objective of this study was to assess haematological parameters in free-ranging white-bellied opossums (Didelphis albiventris) in the central region of Argentina. Total and differential blood cell counts were conducted in thirty-nine captured individuals. The mean (± standard deviation) values obtained were: erythrocytes 5.01 (±2.4) x 10 6 ?L-1, leukocytes: 27,097 (±14,313) ?L-1; neutrophils 7,600 (±7,097) ?L-1 (including immature neutrophils: 794 (±2,738) ?L-1); lymphocytes: 13,110 (±7,541)\n?L-1; basophils: 1,218 (±1,441) ?L-1; eosinophils: 1,983 (±2,458) ?L-1; monocytes: 2,321 (±2,818) ?L-1,. Multivariable statistical analysis showed that neutrophils were strongly associated with sex (p = 0.006). The levels of neutrophils in females doubled that of males. Eosinophils were associated with season. In summer there were significantly greater eosinophils levels than in the winter (p = 0.042). Morphological alterations of erythrocytes were observed in approximately 55% of the blood samples, most of which were stomatocytes and rouleau. A cell type not previously described for this species, annular leukocyte, was also found.Fil: Tarragona, E.L. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Tarragona, E.L. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Zurvera, D. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Zurvera, D. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Manzoli, D.E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Manzoli, D.E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Correa, A.I. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Correa, A.I. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Delgado, A.R. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Cátedra de Bacteriología y Micología. Santa Fe, ArgentinaFil: Delgado, A.R. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Mastropaolo, M. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Cátedra de Parasitología y Enfermedades Parasitarias. Santa Fe, ArgentinaFil: Mastropaolo, M. CONICET. ArgentinaFil: Barengo, E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Barengo, E. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Beldomenico, P.M. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Laboratorio de Ecología de Enfermedades. Santa Fe, ArgentinaFil: Beldomenico, P.M. Universidad Nacional del Litoral. Facultad de Ciencias Veterinarias. Grupo Capibara. Santa Fe, ArgentinaFil: Beldomenico, P.M. CONICET. ArgentinaEl objetivo de este trabajo fue obtener parámetros hematológicos en poblaciones silvestres de comadreja overa Didelphis albiventris de la región centro de la Argentina. Se capturaron 39 individuos, a todos ellos se les realizó un recuento total y diferencial de células sanguíneas. Los valores promedio (± desvío estándar) obtenidos fueron: eritrocitos 5,01 (±2,4) × 10 6 ?L-1; leucocitos 27.097 (±14.313) ?L-1; neutrófilos 7.600 (±7.097) ?L-1 (incluye inmaduros, 794 (±2.738) ?L-1); linfocitos 13.110 (±7.541) ?L-1; basófilos 1.218 (±1.441) ?L-1; eosinófilos 1.983 (±2.458) ?L-1; y monocitos 2.321 (±2.818) ?L-1. La existencia de asociaciones entre estos parámetros y factores ambientales (estación) y del animal (sexo y edad) fue evaluada mediante regresión lineal multivariable. Se estableció que los neutrófilos estuvieron significativamente asociados a sexo (p=0.006). Los machos tenían la mitad de los niveles de neutrófilos que las hembras. Los eosinófilos estuvieron asociados a la estación. En verano hubo significativamente más eosinófilos que en invierno (p=0.042). En los extendidos sanguíneos se observaron alteraciones morfológicas de eritrocitos en aproximadamente 55% de las muestras analizadas, las más habituales fueron pilas en monedas y estomatocitos. También se visualizó un tipo celular no descripto anteriormente para esta especie, leucocito anular
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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