1,720,956 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
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
Técnicas de control efectivo de la sensibilidad con la aplicación de procedimientos de blanquimiento dental
Get PDFObjective: The objective of the study was to identify the main treatments for sensitivity after dental whitening. Methods: A bibliographic review was carried out where documents published in the last five years that include information related to the subject were considered, such as PubMed, MedLine and Scielo magazines. Results and conclusions: Fluoride has been shown to be effective in combating sensitivity, as have fluoride-containing toothpastes that are widely used in the treatment of sensitivity. Thus, the combination of fluoride and desensitizing toothpastes containing potassium nitrate and sodium fluoride show an acceptable effect in reducing sensitivity to whitening. Regarding the use of desensitizing gels, the observed results were satisfactory, highlighting potassium nitrate. However, to choose the most effective treatment method, it is necessary to carry out an individual assessment of each patient.Objetivo: El objetivo del estudio fue identificar los principales tratamientos para la sensibilidad después del blanqueamiento dental. Métodos: Se realizó una revisión bibliográfica donde se consideraron documentos publicados los últimos cinco años que incluyen información relacionada con el tema, como revista PubMed, MedLine y Scielo. Resultados y conclusiones: Se ha demostrado que el flúor es eficaz para combatir la sensibilidad, al igual que los dentífricos que contienen flúor y que se utilizan ampliamente en el tratamiento de la sensibilidad. Así, la combinación de pastas dentales con flúor y desensibilizantes que contienen nitrato de potasio y fluoruro de sodio muestran un efecto aceptable en la reducción de la sensibilidad al blanqueamiento. En cuanto al uso de geles desensibilizantes, los resultados observados fueron satisfactorios, destacando el nitrato potásico. No obstante, para optar por el método de tratamiento más eficaz, es preciso efectuar una valoración individual de cada paciente
Técnicas de control efectivo de la sensibilidad con la aplicación de procedimientos de blanquimiento dental
No full textObjective: The objective of the study was to identify the main treatments for sensitivity after dental whitening. Methods: A bibliographic review was carried out where documents published in the last five years that include information related to the subject were considered, such as PubMed, MedLine and Scielo magazines. Results and conclusions: Fluoride has been shown to be effective in combating sensitivity, as have fluoride-containing toothpastes that are widely used in the treatment of sensitivity. Thus, the combination of fluoride and desensitizing toothpastes containing potassium nitrate and sodium fluoride show an acceptable effect in reducing sensitivity to whitening. Regarding the use of desensitizing gels, the observed results were satisfactory, highlighting potassium nitrate. However, to choose the most effective treatment method, it is necessary to carry out an individual assessment of each patient.Objetivo: El objetivo del estudio fue identificar los principales tratamientos para la sensibilidad después del blanqueamiento dental. Métodos: Se realizó una revisión bibliográfica donde se consideraron documentos publicados los últimos cinco años que incluyen información relacionada con el tema, como revista PubMed, MedLine y Scielo. Resultados y conclusiones: Se ha demostrado que el flúor es eficaz para combatir la sensibilidad, al igual que los dentífricos que contienen flúor y que se utilizan ampliamente en el tratamiento de la sensibilidad. Así, la combinación de pastas dentales con flúor y desensibilizantes que contienen nitrato de potasio y fluoruro de sodio muestran un efecto aceptable en la reducción de la sensibilidad al blanqueamiento. En cuanto al uso de geles desensibilizantes, los resultados observados fueron satisfactorios, destacando el nitrato potásico. No obstante, para optar por el método de tratamiento más eficaz, es preciso efectuar una valoración individual de cada paciente
Gingivitis en el embarazo
No full textIntroducción: el embarazo es una época de cambios para las mujeres. Se producen cambios en todo el organismo debido al aumento de los niveles de la hormona progesterona. La encía es un tejido clave para la acción de las hormonas esteroideas, por tal motivo los cambios clínicos en los tejidos periodontales se identifican durante los periodos de fluctuación hormonal.
Objetivo: sistematizar aspectos sobre qué es la gingivitis en el embarazo, cuáles son sus causas y consecuencias, y cómo tratarla de forma segura para la madre y el bebé.
Método: se realizaron revisiones bibliográficas donde se pudo abordar e interpretar las manifestaciones de la enfermedad periodontal durante el embarazo. Fueron examinados 20 artículos científicos de revistas nacionales e internacionales tanto en español y portugués de los últimos 5 años (2018-2022); de los 20 artículos se excluyeron 5, ya que no coincidían con el tema investigado.
Resultados: los efectos de los estrógenos y la progesterona en el periodonto han sido objeto de atención por los investigadores a lo largo de los años. Por esta razón los tejidos periodontales de la mujer son más susceptibles a esta patología durante el embarazo debido al aumento gradual en el nivel plasmático de progesterona y estrógenos, lo cual conlleva a un acúmulo anormal de bacterias, lo que genera esta enfermedad conocida como gingivitis. Dicha entidad presenta una prevalencia que oscila entre el 35 al 100 %.
Consideraciones finales: si la gingivitis no es tratada durante los dos primeros trimestres las bacterias pueden migrar al torrente sanguíneo y fijarse en la placenta. El cuerpo, como mecanismo de defensa para salvar al bebé entra en trabajo de parto, lo que provoca un parto prematuro. Por este hecho es indispensable asistir a los controles odontológicos
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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