1,721,359 research outputs found
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
Introducción al libro "Campañas de prevención de violencia de género en Colombia y España"
No full textLa mayoría de profesionales de la salud, de los servicios sociales y de la educación, entienden desde hace años que hay que sacar el maltrato hacia la mujer del ámbito privado y atacarlo en sus raíces, eliminando las justificaciones legitimadoras institucionalizadas en las que se apoyan los agresores y haciendo ver a las mujeres agredidas o amenazadas que cuentan con el apoyo exterior para atajar el problema. Es bien sabido que para cambiar conductas asentadas en la cultura no basta con modificar las leyes o sancionar comportamientos que antes se aceptaban. Para cambiar es preciso que los valores que conforman las actitudes se transformen. Este ha sido el propósito principal del proyecto del que da cuenta este libro: hacer una aproximación analítica sistemática al esfuerzo colectivo para modificar las actitudes que están en la base de la violencia contra la mujer. El esfuerzo de investigación se centra en el estudio de las campañas publicitarias de prevención de la violencia de género realizadas por organismos públicos y privados desde el año 2000, en el que se realiza un análisis de contenido que permita evaluar lo realizado y aportar herramientas para optimizar el impacto de futuras campañas. Este libro da cuenta del estudio realizado en Colombia, con una pequeña aportación de los resultados de España.Depto. de Psicología Social, del Trabajo y DiferencialFac. de PsicologíaFALSEpu
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
Retinoic and ascorbic acids induce osteoblast differentiation from human dental pulp mesenchymal stem cells
No full textPrevious studies have suggested an important role of retinoic acid (RA) and ascorbic acid (AA) in the stimulationof osteoblastic differentiation; however, the function of RA and AA in the osteogenic differentiation from humandental pulp (hDPSCs) remains unclear.Objective:Thisin vitrostudy investigated the effects of RA and AA on the differentiation of osteoblast fromhDPSCs.Methods:hDPSCs were treated with different doses of RA and AA, separately or in combination (RAþAA).Morphology and cell proliferation were assessed. Osteoblast differentiation was evaluated by alizarin red, alkalinephosphatase staining, andRUNX2gene expression.Results:A significant reduction was observed in the number of cells treated with RA (26%) and RAþAA (30%)after 12 days of treatment. AA treatment alone induced a 12% reduction in the number of cells. Morphologically,the cells treated with RA and RAþAA were larger and more elongated than the control cells. A mesh pattern wasobserved in cells treated with AA. Numerous calcified nodules were present in cells treated with RA, AA, and RAþAA. This coincided with increased expression ofRUNX2and high alkaline phosphatase staining levels.Conclusions:hDPSCs treated with RA and RAþAA showed significant reduction in proliferation, detectablemorphological changes, and expression of the key differentiation geneRUNX2, consistent with an osteoblastphenotype. AA induced morphological changes and early formation of calcified nodules. RA had a predominanteffect when AA and RA were used together
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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