1,721,031 research outputs found
Replication Data for Zonulin levels for "Bacterial DNAemia is associated with serum zonulin levels in older subjects"
No full textData including: list of Subjects, Sex, Age, BMI, Bacterial load (16S rRNA g.c./μl) and Zonulin level (ng/ml), for sample sets 1 and 2
Replication Data for Blood Microbiomics for "Bacterial DNAemia is associated with serum zonulin levels in older subjects"
No full text16S rRNA gene profiling data of DNA extracted from 50 blood samples collected from heatlhy elederly people.\r\nBacterial populations contained in the samples were determined using next generation high throughput sequencing of variable regions (V3-V4) of the 16S rRNA bacterial gene through MiSeq Illumina technology
Replication Data for 16S rRNA gene profiling of blood samples and controls for "Bacterial DNAemia is associated with serum zonulin levels in older subjects"
No full textFASTQ data (R1 and R2) generated by metataxonomics of blood samples and controls. In brief, DNA extracted from whole blood and controls were used for 16S rRNA gene profiling using MiSeq Illumina technology (2 x 300 paired-end MiSeq kit V3, set to encompass 467-bp amplicon)
Replication Data for 16S rRNA gene sequencing for: "Modulation of Pulmonary Microbiota by Antibiotic or Probiotic Aerosol Therapy: A Strategy to Promote Immunosurveillance against Lung Metastases"
No full textThis dataset contains the following files:\r\n\r\n(1) 20 files \"fastq.gz\": files containing the raw sequencing data (FASTQ files) of the 16S rRNA gene profiling carried out on DNA extracted from BAL of antibiotic-treated (files from A1 to A5) and untreated mice (files from C1 to C5). The 16S rRNA gene was amplified using primers EUBF 5’-TCCTACGGGAGGCAGCAGT-3’ and EUBR 5’ -GGACTACCAGGGTATCTAATCCTGTT-3’ (DOI: 10.1099/00221287-148-1-257), which target the V3-V4 hypervariable regions, and sequenced using MiSeq Illumina® technology (2 x 300 paired-end MiSeq kit V3, set to encompass 467-bp amplicon) as previously described (DOI: 10.1371/journal.pone.0142334; DOI: 10.1111/trf.13477).\r\n\r\n(2) File named \"16S rRNA gene sequences.docx\": Word file containing the nucleotide sequences of part of the 16S rRNA gene amplified from the DNA of the bacterial strains isolated from the bronchoalveolar lavage fluid (BAL) of antibiotic-treated and untreated mice. Before each sequence, the first output of BLASTN search performed with default parameters against the \"16 ribosomal RNA sequences (Bacteria and Archaea)\" database.\r\n\r\nFor any additional need to this datasets, contact: [email protected] and [email protected]
Does the brief-BESTest meet classical test theory and Rasch analysis requirements for balance assessment in people with neurological disorders?
No full textBACKGROUND: The Brief Balance Evaluation Systems Test (Brief-BESTest) was recently proposed as a clinical tool for quickly measuring balance disorders, but
its measurement properties warrant investigation. OBJECTIVE: The study objective was to perform a detailed analysis of the psychometric properties of the Brief-BESTest by means of Classical Test Theory and Rasch analysis. DESIGN: This was an observational measurement study. METHODS: Brief-BESTest data were collected from a sample of 244 participants. Internal consistency was analyzed with the Cronbach α and item-to-total correlations. Test-retest reliability and interrater reliability were investigated in a subgroup of 21 participants. The minimum detectable change at the 95% confidence level was calculated. Scale dimensionality was examined through Horn parallel analysis; this step was followed by exploratory factor analysis for ordinal data. Finally, data were examined using Rasch analysis (rating scale model). RESULTS: The Cronbach α was .89, and all item-to-total correlations were greater than .40. Test-retest reliability had an intraclass correlation coefficient (ICC) (2,1) of .94, and interrater reliability had an ICC (2,1) of .90. The minimum detectable change at the 95% confidence level was 4.30 points. The unidimensionality of the test was confirmed, but 1 item showed low communality. Rasch analysis revealed the inadequacy of response categories, 5 misfitting items, minor mistargeting, moderate person reliability (.80), and 2 pairs of locally dependent items. LIMITATIONS: The sample was a cross-section of people who had balance disorders from different neurological etiologies and were recruited consecutively at a single rehabilitation facility. CONCLUSIONS: The Brief-BESTest was confirmed to have some acceptable-to-good reliability indexes when calculated according to Classical Test Theory, but the scale showed fairly limited sensitivity to change. Rasch analysis indicated that item selection should be improved from a psychometric point of view. Item redundancy needs to be reduced, and the metric coverage of the measured construct needs to be improved with new items
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
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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