1,354,176 research outputs found
Juvenile hallux valgus. Aetiopathogenetic aspects and surgical techniques.
No full textDefinitions, ethiology and surgical treatment of juvenile hallux valgus. Surgical technique by soft tissues procedures, clinical results, literature review and experts' opinion
Behavior modeling for a beacon-based indoor location system
No full textIn this work we performed a comparison between two different approaches to track a person in indoor environments using a locating system based on BLE technology with a smartphone and a smartwatch as monitoring devices. To do so, we provide the system architecture we designed and describe how the different elements of the proposed system interact with each other. Moreover, we have evaluated the system’s performance by computing the mean percentage error in the detection of the indoor position. Finally, we present a novel location prediction system based on neural embeddings, and a soft-attention mechanism, which is able to predict user’s next location with 67% accuracy
Proceso ágil para un curso de grado : desarrollo, documentación y estudio de caso
No full textEl software cada vez esta mas inmerso en la sociedad. Su uso intensivo hace que no concibamos la vida sin él. Muchas responsabilidades y toma de decisiones a nivel individual y como sociedad involucran algún tipo de software desde uno de propósito general (e.g., editor de texto) a mas críticos y complejos como los diseñados para tomar decisiones de forma autónoma (e.g., autos autónomos).
Las necesidades cambiantes, la intensificación del uso de las tecnologías, y su criticidad, presentan dos grandes desafíos: (i) incorporar procesos de desarrollo ágiles que permitan crear software eficiente, oportuno y de calidad; y (ii) desarrollar en los profesionales de software las habilidades y capacidades requeridas para el desarrollo de software contemporáneo. Las universidades abordan el desafío de formar profesionales que cuenten con las competencias necesarias para la construcción de software. Los cursos /capstone/basados en proyectos, donde grupos de estudiantes siguiendo y adaptando un proceso de desarrollo de software llevan adelante un proyecto de construcción de un producto, buscan que los estudiantes apliquen su conocimiento
previo en un problema real que sea lo mas similar a la industria para lograr que desarrollen distintas habilidades necesarias para la producción de software.
El “Proyecto de Ingeniera de Software" (PIS) es un curso /capstone/basado en proyectos de desarrollo de software del que participan estudiantes de cuarto año de la carrera Ingeniería en Computación de la Facultad de Ingeniería de la Universidad de la República de Uruguay. El proceso que se utiliza actualmente en el PIS es iterativo e incremental y dirigido (fuertemente) por planes; y pasaron diez años desde su última actualización.
Esta tesis propone para el PIS un proceso de desarrollo ágil, llamado PISAgile, que guía el aprendizaje de los estudiantes y la construcción de software de calidad. Promueve la colaboración, experimentación de forma temprana y la reflexión para agregar valor, evolucionar y adaptarse a las necesidades cambiantes.
PISAgile consta de tres fases: fase inicial, fase de construcción y fase de transición. En la fase inicial los estudiantes tienen un primer acercamiento al proyecto y proceso, se busca que entiendan las necesidades del cliente y logren conceptualizar el producto a construir. La fase de construcción tiene por objetivo la construcción y aceptación del producto de software. En la fase de transición se hace la transferencia final de los productos al cliente.
PISAgile se aplicó a tres grupos de estudiantes en 2020 y para su evaluación se diseñaron, ejecutaron y analizaron encuestas a los distintos actores: estudiantes, docentes y clientes. En particular en esta tesis, por aspectos vinculados al alcance del trabajo, se presenta únicamente el análisis de la percepción de los estudiantes sobre distintos aspectos a evaluar. Principalmente se evaluaron las habilidades blandas.
Los resultados indican que contar con un proceso ágil disciplinado y un curso como el PIS logra preparar a los estudiantes para su práctica profesional desarrollando tanto habilidades técnicas como blandas. Además, PISAgile sirvió para que los estudiantes pudieran construir software de calidad. Los estudiantes perciben que las fortalezas de PISAgile son contar con fases, iteraciones y roles e incorporar la reflexión y evaluación para la mejora continua.
También entienden que el aspecto a mejorar es la forma en la que actualmente esta documentado PISAgile.
Entendemos que es un importante aporte para el curso PIS contar con un proceso ágil especificado y actualizado que pueda evolucionar por cambios en el curso. Para la academia entendemos que es un aporte contar con un proceso concebido y evaluado en un contexto académico, que se puedan aplicar, y generar mayor conocimiento en la enseñanza de procesos y el aprendizaje de los estudiantes.
Las principales líneas del trabajo futuro se orientan a realizar los ajustes que surgen de la evaluación, particularmente mejorar la documentación de PISAgile, implantarlo para todos los grupos de estudiantes del PIS y complementar la evaluación realizada con la percepción de docentes y clientes
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
E-MALDI: Optimized conditions during electrowetting-enhanced drop drying for MALDI-MS
No full textWe recently showed that electrowetting-enhanced sample preparation for MALDI-MS (eMALDI) can increase the intensity of the MALDI signal by 2-25 times compared to conventional drop drying by concentrating all the dried sample in a single spot rather than leaving behind a heterogeneous coffee stain pattern. Here, we demonstrate that the eMALDI signal enhancement can be further increased to more than 100x by systematically optimizing the electrowetting actuation frequency and amplitude. This enables 30x signal increase for a peptide standard. Simultaneously drop drying times can be reduced approximately five times by increasing the actuation voltage and/or decreasing the initial drop volume
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
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