1,731,637 research outputs found
Massaro, Andrea M.
No full textCentro Asturiano membership record of Andrea M. Massaro; Socio Number: 1166.https://digitalcommons.usf.edu/asturiano_membership/4209/thumbnail.jp
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
La investidura de armas en Castilla: del Rey Sabio a los Católicos. Valladolid: Junta de Castilla y León, Conserjería de Educación y Cultura, 1998. 399 p.
No full textFil: Bau, Andrea M. Universidad de Buenos Aires. Facultad de Filosofía y Letras; ArgentinaReseñado por Andrea M. Ba
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
Molecular Aspects of the Interaction with Gram-Negative and Gram-Positive Bacteria of Hydrothermal Carbon Nanoparticles Associated with Bac8c2,5Leu Antimicrobial Peptide
Full text linkMolecular Aspects of the Interaction with Gram-Negative and Gram-
Positive Bacteria of Hydrothermal Carbon Nanoparticles Associated
with Bac8c2,5Leu Antimicrobial Peptide
Giulia Barzan,⊥ Ida Kokalari,⊥ Giacomo Gariglio, Elena Ghibaudi, Marc Devocelle, Marco P. Monopoli,
Alessio Sacco, Angelo Greco, Andrea M. Giovannozzi, Andrea M. Rossi, and Ivana Fenoglio*
Cite This: https://doi.org/10.1021/acsomega.2c00305 Read Online
ACCESS Metrics & More Article Recommendations *sı Supporting Information
ABSTRACT: Antimicrobial peptides (AMPs) are widely studied
as therapeutic agents due to their broad-spectrum efficacy against
infections. However, their clinical use is hampered by the low in
vivo bioavailability and systemic toxicity. Such limitations might be
overcome by using appropriate drug delivery systems. Here, the
preparation of a drug delivery system (DDS) by physical
conjugation of an arginine-rich peptide and hydrothermal carbon
nanoparticles (CNPs) has been explored, and its antimicrobial
efficacy against Eschericia coli (E. coli) and Staphylococcus aureus
investigated in comparison with the unloaded carrier and the free
peptide. The mechanism of interaction between CNPs and the
bacteria was investigated by scanning electron microscopy and a
combined dielectrophoresis−Raman spectroscopy method for real-
time analysis. In view of a possible systemic administration, the
effect of proteins on the stability of the DDS was investigated by using albumin as a model protein. The peptide was bounded
electrostatically to the CNPs surface, establishing an equilibrium modulated by pH and albumin. The DDS exhibited antimicrobial
activity toward the two bacterial strains, albeit lower as compared to the free peptide. The decrease in effectiveness toward E. coli was
likely due to the rapid formation of a particle-induced extracellular matrix. The present results are relevant for the future
development of hydrothermal CNPs as drug delivery agents of AMP
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
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