1,723,347 research outputs found
Linked collectors and determiners for: UAM Herbarium (ALA), Cryptogam Collection (Arctos).
No full textNatural history specimen data linked to collectors and determiners held within, "UAM Herbarium (ALA), Cryptogam Collection (Arctos)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc">https://bionomia.net/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc">https://gbif.org/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc</a>. Formatted as a Frictionless Data package
Linked collectors and determiners for: UAM Herbarium (ALA), Cryptogam Collection (Arctos).
No full textNatural history specimen data linked to collectors and determiners held within, "UAM Herbarium (ALA), Cryptogam Collection (Arctos)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc">https://bionomia.net/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc">https://gbif.org/dataset/39f7ffd7-9416-4efb-934a-c81f116893fc</a>. Formatted as a Frictionless Data package
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
Avaliação das alterações transversais imediatas à expansão maxilar com o aparelho quadrihélice por meio de tomografia computadorizada do feixe cônico
Get PDFDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2013.O objetivo deste estudo clínico prospectivo foi avaliar as alterações esqueléticas transversais imediatas à expansão maxilar lenta (EML) utilizando o aparelho quadrihélice em pacientes com dentição mista através de tomografia computadorizada do feixe cônico (TCFC). Métodos: A amostra consistiu de 27 pacientes com idades entre 7 a 10 anos que utilizaram o aparelho quadrihélice ativado em 8mm e realizaram TCFC antes da instalação dos expansores (T1) e seis meses após (T2). A análise da diferença entre os tempos foi realizada através do teste t de Student para dados pareados, considerando p0,05. Resultados: Na base maxilar não ocorreram mudanças estatisticamente significativas, exceto para a região de molares em vista axial e coronal. Na crista óssea alveolar, todas as variáveis apresentaram aumento estatisticamente significativo (p0,05). Conclusões: A EML utilizando o quadrihélice provocou aumento estatisticamente significativo na base maxilar somente em região de molares, porém clinicamente sem expressão, e aumento transversal da crista óssea alveolar com inclinação dentária. A expansão em nível de crista óssea foi maior que em base maxilar. O quadrihélice não apresentou resultados ortopédicos satisfatórios, mas corrigiu a mordida cruzada em todos os pacientes deste estudo.Abstract : The purpose of this prospective clinical study was to evaluate the transverse skeletal and dentoalveolar changes immediately slow maxillary expansion ( SME) using the Quad-helix appliance in patients with mixed dentition through beam computed tomography (CBCT ). Methods: A sample of 27 subjects with transverse maxillary deficiency used a quad-helix appliance activated at 8mm, divided into four activations of 2 mm. Cone-beam computed tomography scans were taken before expansion (T1) and six months later (T2). Data were compared by using the Student paired t test to identify statistically significant differences (P<0.05). Results: At the maxillary base there were statistically significant changes, except for the first molar in axial and coronal views. In the alveolar crest, all variables showed a statistically significant increase (p<0.05). Conclusions: The EML using the Quad-helix caused statistically significant increase in the maxillary base at the molar region, but without clinically expression, and presented a transversal increased at the alveolar bone crest with tooth inclination. The expansion in crestal bone level was higher than in maxillary base. The Quad-helix not presented satisfactory orthopedic results, but corrected the crossbite in all patients in this study
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