1,720,986 research outputs found
VTH (Veterinary Teaching Hospital), AVC (Atlantic Veterinary College), Prince Edward Island (PEI), Canada: an overview of eighteen years of parasitology traffic.
No full textINTRODUCTION. The Atlantic Veterinary College (AVC) is the only veterinary medicine faculty in Atlantic Canada. AVC was born in 1986 and also has a state-of-the-art teaching hospital. The parasitology diagnostic laboratory started a user-friendly data system that goes from January, 2000 to November, 2017. Really few surveys are present in literature like that (Raue et al., 2011, Parasitol. Res. 116:3315–3330).
MATERIALS AND METHODS. The objective of this study was to summarize the parasitology laboratory exam results. Descriptive analysis was carried out with the Stata statistical software package, version 15.1.
RESULTS AND CONCLUSIONS. A total of 35,513 samples were tested, belonging to exotic animals, wildlife, livestock and pets mostly from the eastern and Atlantic provinces of Canada. There was a mean of 1972.94 samples (525.05 SD) per year, and the range showed a minimum of 1365 and a maximum of 2954 per year. There were eight performed tests including: Baermann technique, Direct Smear, Egg counts, Sedimentation and Fecal flotation, Canine Heartworm Antigen Test, Neospora caninum Antibody Test, and Skin scraping. The kinds of specimens tested were feces, blood samples, sera and skin. The animal species represented in our study population were: dogs (19,570), bovine (4,797), cats (3,358), sheep (3,051), horses (2,312) and other (1,114), such as birds, foxes, goats, lynx, pigs and raccoons. Overall, out of 35,513 samples, 10,026 (28.2%) were positive for parasites. Protozoa were in 4068 (40.5%) of the 10,026 samples. Gastro-Intestinal Nematodes were found in 3658 samples (36%). Trichostrongyle eggs occupied approximately a third of the samples (40.9/). Cestoda were in 306 (3%) samples, of which Moniezia spp. played the greatest role (55.9%). Lungworms and Capillaridae were in 598 (6%) and 178 (2%) samples, respectively, where the most common species recovered was Crenosoma vulpis. Ascarididae were present in 803 (8%) samples, of which Toxocara spp. was the most frequent. Trematoda were found in 44 (0.43%) specimens. Mites were recovered in 28 of 97 (28.9%) skin scraping, and ten of those were identified as Demodex spp. Interesting results were 33 Alaria spp. cases, three in foxes and thirty in dogs. Also interesting was the detection of 21 cases of cardiopulmonary dirofilariosis in dog. Increasing surveillance of this vector-borne disease agent would be important as the climate, vector range, and habitat continues to change throughout Canada
Risk factors associated to endoparasites in dogs and cats at Prince Edward Island (Canada)
No full textINTRODUCTION. Although many studies on the frequency of endoparasites in dogs and cats in Canada have been reported (Joffe et al., 2011, Can. Vet. J. 52:1323-1328), seasonal and/or annual patterns are often not extimated, furthermore very few and aged papers have been written about owned dogs and cats in Canada. MATERIALS AND METHODS. The frequency of endoparasitc infections from samples of cats (2,391) and dogs (15,016) submitted to the Veterinary Teaching Hospital (VHT) of the Atlantic Veterinary College, University of Prince Edward Island-Canada was determined, using univariate and multivariate analysis. Predictors of endoparasitism, such as sex, age, geographical origin and seasonality, were also investigated through the calculation of odds ratios (OR) with 95% confidence intervals. RESULTS AND CONCLUSIONS. Overall thirteen parasite genuses were detected, cats showed a higher frequency, with this species difference being statistically significant (χ2=15.494; P<0.001). The most frequent genuses recovered were Giardia spp. (5.23%), followed by Isospora spp. (3.31%) and Toxocara spp. (3.21%). Monoparasitism was the most common in both dogs and cats, at 87.5% and 86.7%, respectively. Frequency of Giardia spp. was significantly higher (χ2=8.79; P=0.03) in the dogs during fall, as well as Toxocara spp. (χ2=48.5; P<0.001) and Isospora spp. (χ2=31.13; P<0.001). Cats more likely of being Isospora spp. positive in summer (χ2=31.27; P<0.001). Increasing the age was a protective factor in terms of parasite presence (OR=0.232; 95%CI=0.174-0.311), as well as being sterilized male (OR=0.624; 95%CI:0.419-0.931) or female (OR=0.627; 95%CI:0.419-0.938), furthermore the trend across the years showed a decreasing (OR=0.961; 95%CI: 0.931-0.991). The apparent low frequency of endoparasites should not be interpreted too rigidly, due to the fact that our population came from a Veterinary Teaching Hospital, so some selection biases should be taken into account. For example, owners who take their pets to the veterinary clinic are more likely to follow a deworming protocol than those who do not. This study shows how the diagnosis of routine fecal examinations can be investigated, providing an appreciation of risk factors most commonly associated with endoparasitism. Future research will help to evaluate if the owners’ attitudes affects the probability of parasites in pets
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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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