1,721,010 research outputs found
Determinación de la potencia del componente "sarampión" de la vacuna de virus vivo de sarampión y rubéola U.S.P. utilizada en la jornada de vacunacion 2005
Get PDFMicrobiólogo (a) IndustrialPregrad
Desempeño de los sustitutos de mucosa oral en periodoncia e implantología: una revisión sistemática de la literatura
Get PDFEn la práctica clínica tanto en periodoncia como en implantología, uno de los principales inconvenientes suele ser la deficiencia de tejidos blandos y su biotipo, ya sea el resultado de procesos patológicos o condiciones anatómicas. Actualmente existen diferentes estrategias enfocadas hacia su reemplazo aumento, por medio dela combinación de técnicas quirúrgicas, el uso de injertos y/o el uso de membranas elaboradas con biomateriales. La elaboración in vitro de sustitutos de mucosa por medio de Ingeniería tisular, y su posterior aplicación, es una alternativa para el tratamiento. A pesar de la existencia de estudios preclínicos y clínicos sobre el uso de sustitutos de tejido de mucosa oral, la información reportada actualmente con respecto a su desempeño y posible uso clínico en el campo periodontal e implantológico, no es concluyente.In clinical practice both periodontal implant as one of the main drawbacks is usually soft tissue deficiency and biotype , whether the result of pathological processes or anatomical conditions . Currently there are different strategies focused on increasing replacement , through dela combination of surgical techniques, the use of grafts and / or prepared using mermbranas with biomaterials. The development in vitro mucosa substitutes through tissue engineering , and its subsequent implementation , is an alternative for treatment. Despite the existence of preclinical and clinical studies on the use of substitutes for oral mucosal tissue , currently reported information regarding their performance and potential clinical use in periodontal and implant field is not conclusive .Especialista en PeriodonciaEspecializació
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
Niveles de anticuerpos y respuesta a la vacuna de sarampión en la era postvacunal en pacientes ambulatorios
No full textIP 1203-04-540-9
Niveles de anticuerpos y respuesta a la vacuna de sarampión en la era postvacunal en pacientes ambulatorios
No full textIP 1203-04-540-9
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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