1,722,365 research outputs found
Figure 3. The Bayesian tree inferred from the dataset 107 in Phylogenetic relationships of Brachycera (Insecta: Diptera) inferred from mitochondrial genome sequences
No full textFigure 3. The Bayesian tree inferred from the dataset 107-taxon_PCG_nt12 using PhyloBayes, under the site-heterogeneous mixture model (CAT-GTR). Node numbers show the posterior probability values (> 0.90). The insect pictures are provided by Yuqiang Xi.Published as part of Song, Nan, Xi, Yu-Qiang & Yin, Xin-Ming, 2022, Phylogenetic relationships of Brachycera (Insecta: Diptera) inferred from mitochondrial genome sequences, pp. 720-739 in Zoological Journal of the Linnean Society 196 (2) on page 729, DOI: 10.1093/zoolinnean/zlab125, http://zenodo.org/record/718442
Numerical simulation of anomalous diffusion with application to medical imaging
No full textThe first objective of this project is to develop new efficient numerical methods and supporting error and convergence analysis for solving fractional partial differential equations to study anomalous diffusion in biological tissue such as the human brain. The second objective is to develop a new efficient fractional differential-based approach for texture enhancement in image processing. The results of the thesis highlight that the fractional order analysis captured important features of nuclear magnetic resonance (NMR) relaxation and can be used to improve the quality of medical imaging
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
sj-pdf-1-imr-10.1177_03000605211043243 - Supplemental material for Alveolar–arterial partial pressure difference as an early predictor for patients with acute paraquat poisoning
No full textSupplemental material, sj-pdf-1-imr-10.1177_03000605211043243 for Alveolar–arterial partial pressure difference as an early predictor for patients with acute paraquat poisoning by Yu-Quan Chen, Yu-Qiang Lin, Wen-Zhong Jiang, Zhi-Qian Yang, Jing Pan, Wei-Wei Liu and Yi-Min Liu in Journal of International Medical Research</p
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
Figure 1 in Phylogenetic relationships of Brachycera (Insecta: Diptera) inferred from mitochondrial genome sequences
No full textFigure 1. Representations of previous hypotheses for the relationships among major groups of Brachycera inferred from morphologically-based or molecular studies by authors cited. A, Woodley (1989) based on morphological data; B, Wiegmann et al. (2003) based on morphological and molecular data; C, Yeates (2002) based on morphological data; D, Wiegmann et al. (2011) based on morphological and molecular data; E, Shin et al. (2018) based on molecular data; F, Bayless et al. (2021) based on molecular data.Published as part of Song, Nan, Xi, Yu-Qiang & Yin, Xin-Ming, 2022, Phylogenetic relationships of Brachycera (Insecta: Diptera) inferred from mitochondrial genome sequences, pp. 720-739 in Zoological Journal of the Linnean Society 196 (2) on page 721, DOI: 10.1093/zoolinnean/zlab125, http://zenodo.org/record/718442
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