1,720,969 research outputs found
Influencias Periodontales en el Tratamiento Ortodóntico
Full text linkAún hoy los ortodoncistas evitan tratar individuos con lesiones periodontales localizadas o generalizadas, por temer a las respuestas del periodonto frente a las fuerzas ortodónticas. La elaboración del tratamiento en forma conjunta con elperiodoncista, logra resultados muy satisfactorios para el paciente desde el punto de vista
periodontal, ortodóntico y principalmente estético. La Ortodoncia incrementa las posibilidades de salvar y restaurar una dentición deteriorada. La presencia de afecciones gíngivo-periodontales tiene influencia directa sobre el tratamiento ortodóntico, por lo que se impone una correcta evaluación del estado periodontal antes de iniciar el mismo
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
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
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
Sex determination in forensic dentistry using supervised classification techniques.
Full text linkLos dientes, componentes esenciales del sistema estomatognático, constituyen un excelente material para
investigaciones paleontológicas, arqueológicas, antropológicas, genéticas y forenses, merced a su fácil accesibilidad, examen, registro y estructura casi indestructible. La información referente a su tamaño y características ha resultado de suma utilidad en la determinación del sexo y en el propio proceso de identificación humana. Este estudio buscó verificar si el índice canino maxilar, era un instrumento confiable y válido para la determinación del sexo, en una muestra uruguaya. Se trató de un análisis odontométrico de 481 modelos superiores de yeso (243 de sujetos del sexo masculino y 238 del femenino), de pacientes con edades comprendidas entre 18 y 60 años, asistidos en una clínica de ortodoncia de la ciudad de Montevideo, Uruguay, consistente en las mediciones del diámetro mesiodistal de los caninos y la distancia intercanina superiores, y el cálculo del correspondiente índice canino maxilar. Se compararon tres técnicas de clasificación del sexo, el índice canino maxilar y dos métodos de clasificación supervisada (árbol de clasificación y árbol particionado recursivo), buscando verificar qué método era el más adecuado para la determinación del sexo, en una muestra uruguaya. Los modelos mostraron una performance de 52 %, 77 % y 69 % respectivamente. Se concluyó que los modelos estadísticos de clasificación supervisada, permitieron realizar una determinación del sexo de manera más fidedigna que el método de discriminación convencional.Teeth, essential components of stomatognatrhic system, constitute an excellent material for paleonto-
logical, archaeological, anthropological, genetic and forensic researches by virtue of their easy accessibility, examination, registration and almost indestructible structure. Information regarding their size and characteristics has been extremely useful in determining sex and in the process of human identification itself. This survey was an odontometric analysis of 481 upper dental stone casts (243 from males and 238 from females), of patients aged between 18 and 60 years, assisted in one orthodontic clinic of Montevideo, Uruguay, consisting of measurements of upper mesiodistal diameter of canines and intercanine distance. Three sex classification techniques were compared, the maxillary canine ndex and two supervised classification methods (classification tree and recursive partitioned tree), seeking to verify which method was the most suitable for the determination of sex, in a Uruguayan sample. The models showed a performance of 52 %, 77 % and 69 % respectively. It was concluded that the statistical models of supervised classification allowed a determination of the sex in a more reliable way than the discrimination method
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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