1,747,481 research outputs found
Albanien: 8000 Jahre alte Pfahlbausiedlung gefunden.
No full textSeit zwei Jahren graben Forschende der Universität Bern im Ohridsee in Albanien nach Relikten einer längst untergegangenen Seeufersiedlung. Jetzt zeigt sich, dass die Pfahlbausiedlung Lin fast 8000 Jahre alt und damit die älteste ihrer Art in Europa ist
Critérios essenciais à implantação da Social Accountability (SA) 8000: um estudo de caso
Get PDFDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produçã
Website files: imagematch.bodleian.ox.ac.uk:8000
No full textThis is a closed internal dataset containing websites files relating to imagematch.bodleian.ox.ac.uk:8000. These files were archived as part of the LIB702 Web Application Rationalisation Project (2019-2020) ran by Bodleian Digital Library Systems and Services. Due to the size of the site the files could not be saved to the GitLab LegacySite project space (https://gitlab.bodleian.ox.ac.uk/legacysites). The ORA UUID relating to this record has instead been added to GitLab to enable retrieval if necessary.
Website files for this record are held within a separate dataset. Please refer to 'Website files: ballads.bodleian.ox.ac.uk' (https://ora.ox.ac.uk/objects/uuid:4fd7040c-60e1-4f95-bbd4-900e2f1a9b98)
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
Characterisation of Gliclazide-PEG 8000 Solid Dispersions
Get PDFPurpose: The aim of the present study was to characterise gliclazide
solid dispersions (SDs) prepared with polyethylene glycol (PEG) 8000
and compare them with SDs in PEG 6000. Methods: Gliclazide SDs
containing varying concentrations of PEG 8000 were prepared using the
fusion – solvent technique, and their phase solubility behavior
and dissolution in 0.1N HCl were assessed at 37°C. The physical
state of, and gliclazide-PEG interactions in, SDs and physical mixtures
prepared in ratios of 1:1, 1:2 and 1:5 (gliclazide: PEG 8000),
respectively, were characterized by x-ray diffraction (XRD),
Fourier-transform infrared (FTIR) spectroscopy and differential
scanning calorimetry (DSC). Results: The solubility of gliclazide
increased with increasing amount of PEG 8000 in aqueous medium. Gibbs
free energy (ΔGo tr) values were all negative, indicating the
spontaneous nature of gliclazide solubilisation. Dissolution studies
indicated a significant increase in the dissolution of gliclazide when
dispersed in PEG 8000. FTIR analysis demonstrated the absence of
well-defined gliclazide - PEG 8000 chemical interaction while DSC and
XRD studies indicated the amorphous /microcrystalline state of
gliclazide in the SDs. Conclusion: In both solid dispersions and
physical mixture, PEG 8000 increases the solubility and dissolution
rate of gliclazide. The increased dissolution rate of gliclazide may be
due to the formation of microcrystals, increased wettability and
dispersibility in systems containing PEG 8000
Characterisation of Gliclazide-PEG 8000 Solid Dispersions
Get PDFPurpose: The aim of the present study was to characterise gliclazide
solid dispersions (SDs) prepared with polyethylene glycol (PEG) 8000
and compare them with SDs in PEG 6000. Methods: Gliclazide SDs
containing varying concentrations of PEG 8000 were prepared using the
fusion – solvent technique, and their phase solubility behavior
and dissolution in 0.1N HCl were assessed at 37°C. The physical
state of, and gliclazide-PEG interactions in, SDs and physical mixtures
prepared in ratios of 1:1, 1:2 and 1:5 (gliclazide: PEG 8000),
respectively, were characterized by x-ray diffraction (XRD),
Fourier-transform infrared (FTIR) spectroscopy and differential
scanning calorimetry (DSC). Results: The solubility of gliclazide
increased with increasing amount of PEG 8000 in aqueous medium. Gibbs
free energy (ΔGo tr) values were all negative, indicating the
spontaneous nature of gliclazide solubilisation. Dissolution studies
indicated a significant increase in the dissolution of gliclazide when
dispersed in PEG 8000. FTIR analysis demonstrated the absence of
well-defined gliclazide - PEG 8000 chemical interaction while DSC and
XRD studies indicated the amorphous /microcrystalline state of
gliclazide in the SDs. Conclusion: In both solid dispersions and
physical mixture, PEG 8000 increases the solubility and dissolution
rate of gliclazide. The increased dissolution rate of gliclazide may be
due to the formation of microcrystals, increased wettability and
dispersibility in systems containing PEG 8000
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
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