1,720,956 research outputs found
Posición de los incisivos centrales y su relación con el grosor de la cortical alveolar en tomografías computarizadas de haz cónico en una población peruana
Get PDFPrecisa la relación entre la posición de los incisivos y el
grosor de la cortical alveolar en Tomografía Computarizada de Haz Cónico (TCHC) en una población peruana. Los incisivos centrales son esenciales para la fonación, articulación, de soporte de
tejidos blandos y la estética. Con el uso de la tomografía computarizada de haz
cónico obtendremos información precisa para planificar la rehabilitación del
paciente. Para el estudio, se
analiza 182 TCHC de pacientes entre 18 a 60 años. Las variables analizadas son
la posición del diente, el espesor de la cortical alveolar y el hueso basal.
En cuanto a los resultados, la cortical alveolar vestibular se caracteriza por ser fina a nivel de
3mm(A) y 5mm(B) y por palatino es mayor a 1 mm. Según la clasificación, se
obtiene que la clase I representa 9,9%, clase II es de 77,3%, clase III de 3,3%, clase
IV con 3,9% y clase V con 5,5%; y el hueso basal que tuvo como promedio 11,31 ±
2,49 mm. Se concluye que existe una relación significativa del espesor de cortical
alveolar en B y 10mm(C) por vestibular; y en A, B y C por palatino según la posición
de los incisivos; predominó la subclase IIB con su raíz hacia vestibular
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
Relación entre los niveles de autoeficacia y disposición para realizar una tesis en estudiantes peruanos de Odontología
Get PDFIntroduction: Some students manage to advance their thesis projects much easily than others. Thus, reasons arise for the increase in predisposition and satisfactory performance, as well as the increase in the skills developed during the undergraduate course. This performance is associated with greater motivation for research activities and the feeling of self-efficacy to carry out tasks.Objective: To evaluate the relationship between the levels of self-efficacy and the disposition to carry out the degree thesis.Methods: A cross-sectional analytical study was carried including113 students from the last two years of the School of Dentistry of Universidad Nacional Mayor de San Marcos, Lima, Peru. The survey technique was used with two scales: self-efficacy to achieve the thesis (two dimensions and 14 questions) and willingness to achieve the thesis (four dimensions and 44 questions). Pearson's correlation test was used to analyze the scores for each variable.Results: Self-efficacy obtained a general score of 1.61 ± 0.53. No significant differences were found between fifth and boarding school students. The disposition had an overall score of 4.04 ± 0.34. A significant correlation was found between the variables for all the respondents (p < 0.05; r = 0.283). However, no correlations were found when each academic year (p > 0.05) was analyzed. Scores in women showed a correlation, significante between self-efficacy to achieve the thesis and willingness to do so (p < 0.01; r = 0.430). There was no such correlation in the male group.Conclusions: There is relationship between the scores of “self-efficacy to do the thesis” and the “willingness to do the thesis” in a group of dentistry students. This correlation is maintained in women and is not present in men. Fifth-year students showed higher average scores regarding both variables.Introducción: Algunos estudiantes logran desarrollar la tesis con mayor facilidad que otros. De ese modo surgen motivos para el aumento de la predisposición y el rendimiento satisfactorio, así como el incremento de las competencias desarrolladas durante el pregrado. Este rendimiento se encuentra asociado a mayor motivación para las actividades de investigación y la sensación de autoeficacia para la realización de las tareas.Objetivo: Analizar la relación existente entre los niveles de autoeficacia y la disposición para realizar la tesis universitaria.Métodos: Estudio analítico transversal, que incluyó 113 estudiantes de los dos últimos años de la Facultad de Odontología de la Universidad Nacional Mayor de San Marcos (Lima, Perú). Se utilizó la técnica de la encuesta con dos escalas: “autoeficacia para realizar la tesis” (dos dimensiones y 14 preguntas) y “disposición para realizar la tesis” (cuatro dimensiones y 44 preguntas). Se empleó la prueba de correlación de Pearson para analizar las puntuaciones de cada variable.Resultados: La autoeficacia obtuvo una puntuación general de 1,61 ± 0,53. No se encontraron diferencias significativas entre estudiantes de quinto e internado. La disposición tuvo una puntuación general de 4,04 ± 0,34. Se encontró correlación significativa entre las variables para todos los encuestados (p < 0,05; r = 0,283). Sin embargo, no se encontraron correlaciones cuando se analizó por cada año académico (p > 0,05). Las puntuaciones de las mujeres evidenciaron correlación, existiendo significancia entre la autoeficacia para realizar la tesis y la disposición hacerla (p < 0,01; r = 0,430). No existió tal correlación en el grupo de los varones.Conclusiones: Existe una relación entre las puntuaciones de la “autoeficacia para realizar la tesis” y la “disposición para realizar la tesis” en un grupo de estudiantes de Odontología. Esta correlación se mantiene en las mujeres y no se presenta en los varones. Los estudiantes de quinto año evidenciaron mayores puntuaciones promedio respecto a ambas variables
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
