1,723,569 research outputs found
Linked collectors and determiners for: The Broward College Insect Collection.
No full textNatural history specimen data linked to collectors and determiners held within, "The Broward College Insect Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f">https://bionomia.net/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f">https://gbif.org/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f</a>. Formatted as a Frictionless Data package
Linked collectors and determiners for: The Broward College Insect Collection.
No full textNatural history specimen data linked to collectors and determiners held within, "The Broward College Insect Collection". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f">https://bionomia.net/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f">https://gbif.org/dataset/7f7fd51e-0ff2-421d-9316-024ee042e88f</a>. Formatted as a Frictionless Data package
Emergence of new genetic lineage, ST-9316, of Neisseria meningitidis group W in Hauts-de-France region, France 2013–2018
No full textInternational audienceBackground: The epidemiology of invasive meningococcal disease (IMD) is continuously changing in incidence, age distribution and/or the expansion of new strains of Neisseria meningitidis. The epidemiology of IMD due to group W (IMDW) has changed recently at a global level with the emergence of isolates belonging to the clonal complex ST-11 (CC11) derived from the South America-UK strain. A more recent change has been detected in France with the emergence of a new genotype distinct from CC11 that we aimed to analyse.Methods: Epidemiological and microbiological surveillance data in France were used in combination with whole genome sequencing (WGS) to detect emerging phenotypes and genotypes of IMD causing strains, and their susceptibility to immunity induced by the 4CMenB vaccine. Transgenic mice expressing the human transferrin were used to analyse the virulence of emerging strain isolates by direct comparison with CC11 isolates.Findings: Our data showed a local increase of IMDW isolates in north France since 2013. The isolates belonged to ST-9316 and few were ST-11 isolates. WGS clustered ST-9316 isolates together and were distantly separated from the isolates of the clonal complex ST-11 (CC11). Unlike cases due to W/CC11 isolates, cases due to W/ST-9316 isolates were mostly observed amongst infants under the age of 1 year but with lower mortality compared to W/CC11 cases. Genomic comparison showed that the W/ST-9316, unlike W/CC11 isolates, lacked the hmbR gene encoding the haemoglobin receptor that is a virulence factor involved in the acquisition of iron from haemoglobin. W/ST-9316 further showed lower virulence in mice compared to W/CC11 isolates.Interpretation: We report the emergence of a novel sequence type (ST-9316) mostly associated with serogroup W, and exhibiting a lower virulence and a distinct age specific incidence profile than W/CC11 isolates. Surveillance requires powerful approaches combining WGS and pathophysiological analysis to adapt control measures
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 EMERGENCE OF A NEW GENETIC LINEAGE (ST-9316) OF NEISSERIA MENINGITIDIS SGROUP W IN NORTH FRANCE
No full textInternational audienceMaterials and MethodsAll invasive isolates that are received at the National Reference Centre are analyzed by whole genome sequencing (WGS,NextSeq 500, Illumina). The isolates are uploaded regularly to the PUBMLST and periodically analyzed using genomecomparator tools. The SplitsTree4 (version 4.13.1) is used to visualise the resulting distance matrices as Neighbor-netnetworks.ResultsSerogroup W isolates are increasing in France since 2013 and most of the isolates belonged to the clonal complex ST-11and were derivatives of the South American UK strain. However, between 2013 and 2018, 24 cases of IMD due to isolatesbelonging to an unusual sequence type, the ST-9316, were identified in France mainly in the north part of the country. Themajority of cases belonged to group W but few were of groups B and C. These isolates do not belong to any already definedclonal complex (CC). The cases were distributed as follows: 1 case in 2013, 2 cases in 2015, 6 cases in 2016, 9 cases in 2017and 6 in 2018. The index case of this ST-9316 cluster was identified in December 2013 in the Hauts-de-France from a 29 yearsold woman. Cases were distributed in all groups of age.Coregenome MLST clustered all the isolates belonging to the ST-9316 together and were distantly separated from the otherisolates that differed by more than 1300 alleles. However, those isolates were closer to the isolates of the CC865. The W/ST-9316 isolates shared several identical allelic profiles that were different from those of lineages of CC11 isolates. Most ofthe corresponding genes encode metabolic enzymes. However, few other genes involved in interactions with host cells suchas genes encoding FetA, PorA, factor H binding protein (Fhbp). Interestingly, all the W/ST-9316, unlike the W/CC11 isolates,lacked the hmbR gene encoding the haemoglobin receptor that is involved in the acquisition of iron from haemoglobin.ConclusionChanging meningococcal epidemiology may occur rapidly and locally. Surveillance requires extensive and powerfulapproaches such as WGS to rapidly adapt preventive strategies
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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