1,720,984 research outputs found
Ultrasound-Based Technologies for the Evaluation of Testicles in the Dog: Keystones and Breakthroughs
No full textUltrasonography is a valuable diagnostic tool extensively used in the andrology of human
and domestic animals, including dogs. This review aims to provide an overview of various technologies based on ultrasound, from the basic B-Mode ultrasonography to the more recent advancements,
such as contrast-enhanced ultrasonography (CEUS) and ultrasound elastography (UEl), all of which
are utilized in the evaluation of canine testicles. The review outlines the principles behind each of
these technologies and discusses their application in assessing normal and abnormal testicular conditions. B-mode canine testicular ultrasonography primarily focuses on detecting focal lesions but has
limitations in terms of objectivity. Other technologies, including Doppler ultrasonography, B-Flow,
and CEUS, allow for the characterization of vascular patterns, which could be further measured using
specific applications like spectral Doppler or quantitative CEUS. Additionally, ultrasound elastography enables the assessment of parenchyma stiffness both qualitatively and quantitatively. These
ultrasound-based technologies play a crucial role in andrology by providing valuable information for
evaluating testicular function and integrity, aiding in the identification of pathological conditions
that may impact the health and quality of life of male dogs
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
Study of postnatal growth of mule and donkey foals sired by the same jackass
No full textMules have been enrolled for agricultural work in national parks or islands and hard-to-reach places in which the use of machinery is forbidden or not feasible. Despite the importance of this animal, limited information is reported regarding gestation, parturition, and post-natal growth in mule. To evaluate the effects of the pregnancy length, birthweight, and fetal sex on neonatal health and growth in mule and donkey foals born from Heavy Draft mares (n=15) and Martina Franca jennies (n=18) inseminated with the same jackass until 30 months of age. This study was conducted on 15 healthy Heavy Draft mares, 4 to 6 years old and weighing 640 to 730 kg, and 18 healthy Martina Franca jennies 4 to 6 years old and weighing 390 to 420 kg. All animals presented normal reproductive history such as cyclicity, pregnancy, and foaling. The semen used for artificial insemination was collected from the same 7 years old 485 kg bodyweight Martina Franca jackass of proven fertility. Pregnancy length in the mares bearing mule foal (339 ± 9 days) was similar to that reported in the equine gestation and was longer in female mules (347 ± 4.4 days) than males (331 ± 5.46 days) (P < 0.05). In donkey, pregnancy length was significantly longer in male foals (373.7 ± 10.4 days) than females (366.9 ± 5.6 days) (P < 0.01). The mean birth weight was higher in mules compared to donkey foals (50.6 ± 4.83 vs 33.4 ± 5.7 kg) and was greater in male mules than in females (53.95 ± 3.2 kg and 46.6 ±2.96 kg, respectively; P < 0.05). Mule foal’s weight increased faster than donkey foals, despite a similar height at withers at different time points. Pregnancy length affected birthweight in both mule and donkey foals, and birthweight was related to postnatal growth in both mule and donkey foals. The findings reported in this manuscript could optimize the maternal-foal management of this equine hybrid
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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