1,722,805 research outputs found
Gould, Hull, and the Individuation of Scientific Theories
Full text linkA publicação final está disponível no link: http://link.springer.com/article/10.1007%2Fs10699-009-9161-3 ______________________________________________________________________________________ The final publication is available at link: http://link.springer.com/article/10.1007%2Fs10699-009-9161-3Discute a individualização da teoria darwiniana de Gould. Cita-se, para tanto, as teorias minimalista e maximalista além do posicionamento de Hull e Kuhn
Linked collectors and determiners for: Colección de Hymenoptera de la región Caribe en el Centro de Colecciones Científicas de la Universidad del Magdalena.
No full textNatural history specimen data linked to collectors and determiners held within, "Colección de Hymenoptera de la región Caribe en el Centro de Colecciones Científicas de la Universidad del Magdalena". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/a4f29469-9161-47b6-a7d8-0ad5edd06daa">https://bionomia.net/dataset/a4f29469-9161-47b6-a7d8-0ad5edd06daa</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/a4f29469-9161-47b6-a7d8-0ad5edd06daa">https://gbif.org/dataset/a4f29469-9161-47b6-a7d8-0ad5edd06daa</a>. Formatted as a Frictionless Data package
Linked collectors and determiners for: New records and descriptions of Ichneumonidae (Hymenoptera) from Mexico.
No full textNatural history specimen data linked to collectors and determiners held within, "New records and descriptions of Ichneumonidae (Hymenoptera) from Mexico". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/b9d1e2a0-a79c-497d-9161-c18471ebf00d">https://bionomia.net/dataset/b9d1e2a0-a79c-497d-9161-c18471ebf00d</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/b9d1e2a0-a79c-497d-9161-c18471ebf00d">https://gbif.org/dataset/b9d1e2a0-a79c-497d-9161-c18471ebf00d</a>. Formatted as a Frictionless Data package
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
Postbiotic Lactiplantibacillus plantarum CECT 9161 Influences the Canine Oral Metagenome and Reduces Plaque Biofilm Formation
No full textPeriodontal diseases are highly prevalent in dogs and intricately interconnected with the composition and functional attributes of the oral microbiota. The demand for non-invasive interventions to support oral health presents an opportunity for functional ingredients. The novel postbiotic heat-treated (HT) Lactiplantibacillus plantarum CECT 9161 inhibited growth and biofilm formation of oral microorganisms in vitro. The in vitro growth of saliva-derived biofilms was also inhibited and revealed microbiome modulation. Two doses of the postbiotic (LOW: 5 mg dog/day, HIGH: 25 mg/dog/day) were assessed in a placebo-controlled, double-blinded, 57-day clinical trial involving 60 dogs. Associations were found between the postbiotic, reduced plaque formation, and modulation of the oral microbiome, including increased abundance of genes involved in denitrification, heme and catechol biosynthesis, and oxidative stress reduction. The results suggest that HT Lactiplantibacillus plantarum CECT 9161 may support oral health in dogs by modifying the microbiome of supragingival plaque and reducing plaque formation
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
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