1,721,058 research outputs found
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
The risk of zoonotic agents with special mention of Baylisascaris, Salmonella, Leptospira and rabies virus in urban raccoons (Procyon lotor) in Costa Rica
No full textDissertation - Veterinärmedizinische Universität Wien - 2021
Aus rechtlichen Gründen sind nicht alle Teile dieser Arbeit frei zugänglich. Der Zugriff auf den elektronischen Volltext ist auf Angehörige der Veterinärmedizinischen Universität Wien beschränkt. Bitte einloggen!Dissertation - University of Veterinary Medicine Vienna - 2021
The full text is only available to university members. Please log in!Dissertation - Veterinärmedizinische Universität Wien - 2021
Aus rechtlichen Gründen sind nicht alle Teile dieser Arbeit frei zugänglich. Der Zugriff auf den elektronischen Volltext ist auf Angehörige der Veterinärmedizinischen Universität Wien beschränkt. Bitte einloggen
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
Presence of β-Lactamase-producing Enterobacterales and Salmonella isolates in marine mammals
No full textDissertation - Veterinärmedizinische Universität Wien - 2022Meeressäuger zählen zu den Sentineltieren des Meeres und können Aufschluss über den Gesundheitszustand des marinen Ökosystems geben. Das Ziel der vorliegenden Studie war die Untersuchung dieser küstennah lebenden Tiere auf das Vorkommen (i) von Extended- Spectrum β-Laktamasen (ESBL) und AmpC-produzierenden Enterobacterales, einer Ordnung, welcher einige Bakterien-Familien mit Bedeutung für den Gesundheitssektor zugehören, und (ii) von Salmonella. Im Rahmen der vorliegenden Studie wurden Enterobacterales Isolate, welche gestrandeten Meeressäugern vor deren Rehabilitation entnommen wurden, hinsichtlich ihrer phäno- und genotypischen Resistenz gegenüberAntibiotika und ihrer Empfindlichkeit gegenüber Bioziden untersucht. Alle E. coli Isolate (n = 27) wurden mittels DNA-basierter Microarraydiagnostik auf Virulenz-assoziierte Gene untersucht, und zwölf ausgewählte E. coli Isolate wurden mittels Vollgenomsequenzierung analysiert. Einundsiebzig Enterobacterales Isolate wiesen einen multiresistenten Phäno- und Genotyp auf. Das vorherrschende β-Laktamase Gen war blaCMY (n = 51). Des Weiteren wurden die Gene blaTEM-1 (n = 38), blaSHV-33 (n = 8), blaCTX-M-15 (n = 7), blaOXA-1 (n = 7), blaSHV-11 (n = 3) und blaDHA-1 (n = 2) detektiert. Die meist vertretenen nicht-β-Laktamase Gene waren sul2 (n = 38), strA (n = 34), strB (n = 34) und tet(A) (n = 34). Es wurden E. coli Isolate, welche den pandemischen Sequenztypen ST38, ST167 und ST648 zugehören, identifiziert. Unter den Salmonella Isolaten (n = 18) war S. Havana der vorherrschende Serotyp. Die Ergebnisse dieser Studie zeigen eine hohe Prävalenz multiresistenter Bakterien und das Vorhandensein von pandemischen Hochrisiko-Erregerklonen bei Meeressäugern – beides Indikatoren für eine antimikrobielle Verschmutzung des marinen Ökosystems durch den Menschen.Dissertation - University of Veterinary Medicine Vienna - 2022Marine mammals have been described as sentinels of the health of marine ecosystems. Therefore, the aim of this study was to investigate (i) the presence of extended-spectrum β-lactamase (ESBL)- and AmpC-producing Enterobacterales, which comprise several bacterial families important to the healthcare sector, as well as (ii) the presence of Salmonella in these coastal animals. The antimicrobial resistance pheno- and genotypes, as well as biocide susceptibility of Enterobacterales isolated from stranded marine mammals were determined prior to their rehabilitation. All E. coli isolates (n = 27) were screened for virulence genes via DNA-based microarray, and twelve selected E. coli isolates were analyzed by whole-genome sequencing. Seventy-one percent of the Enterobacterales isolates exhibited a multidrug-resistant (MDR) pheno- and genotype. The gene blaCMY (n = 51) was the predominant β-lactamase gene. In addition, blaTEM-1 (n = 38), blaSHV-33 (n = 8), blaCTX-M-15 (n = 7), blaOXA-1 (n = 7), blaSHV-11 (n = 3), and blaDHA-1 (n = 2) were detected. The most prevalent non-β-lactamase genes were sul2 (n = 38), strA (n = 34), strB (n = 34), and tet(A) (n = 34). E. coli isolates belonging to the pandemic sequence types (STs) ST38, ST167, and ST648 were identified. Among Salmonella isolates (n = 18), S. Havana was the most prevalent serotype. The present study revealed a high prevalence of MDR bacteria and the presence of pandemic high-risk clones, both of which are indicators of anthropogenic antimicrobial pollution, in marine mammals
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
- …
