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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
Skin immunosenescence: decreased receptor for activated C kinase-1 expressioncorrelates with defective tumour necrosis factor-alpha production in epidermalcells
No full textHIGH INTERLEUKIN-10 PRODUCTION IS ASSOCIATED WITH LOW ANTIBODY RESPONSE TO INFLUENZA VACCINATION IN THE ELDERLY.
No full textJ Leukoc Biol. 2006 Aug;80(2):376-82. Epub 200
Ontogenesis of protein kinase C betaII and its anchoring protein RACK1 in the maturation of alveolar macrophage functional responses.
No full textAbstract
Alveolar macrophages are the resident airway cells primarily responsible for the protection of the lungs against inhaled toxins and other biologically active materials. The purpose of this study was to investigate the maturation with age of alveolar macrophage functional responses. We characterised the ontogenesis of PKC betaII and its anchoring protein RACK1 in correlation with PKC-dependent immune functions, such as TNF-alpha, hydrogen peroxide production and lysozyme release in resident alveolar macrophages obtained from rats 2, 4 and 12 weeks old. Our results show an age-associated increase in the expression of PKC betaII and RACK1, which correlated with a maturation of alveolar macrophage functional responses
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
Is the acceptable daily intake as presently used an axiom or a dogma?
No full textInternational scientific committees, regional scientific committees such as those of the European Union, and national regulatory agencies generally use the uncertainly factor approach for establishing acceptable or tolerable intakes of substances that exhibit thresholds of toxicity. No observed adverse effect levels (NOAELs) are identified in the critical studies to which appropriate uncertainly factors are applied to allocate acceptable daily intake (ADI). This paper discusses the different steps of the risk assessment process considered for decades worldwide a pragmatic approach to allocate safe doses, yet in need of improvements during the extrapolation phase which could increase the confidence level of the work performed by risk assessor
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