1,720,962 research outputs found
Design and Development of an Expert System for Monitoring the Diet in Ambulatory Patients with Hypertension and Prehypertension Using Fuzzy Logic
No full textEn este documento se presentan el diseño, desarrollo e implementación de un sistema experto enfocado al monitoreo de la ingesta diaria de alimentos en pacientes diagnosticados algún estado de hipertensión, que aprovecha los beneficios de los sistemas expertos difusos en el manejo de entornos con incertidumbre. Este sistema se implementó como una herramienta tecnológica para dispositivos móviles con sistema operativo Android para facilitar al paciente el control del tratamiento y la adaptación a los cambios de estilo de vidaThis paper presents the design, development and implementation of an expert system focused on the monitoring of daily food intake in patients diagnosed with hypertension, who take advantage of the benefits of diffuse expert systems in the management of uncertain environments. This system was implemented as a technological tool for mobile devices with Android operating system to facilitate the patient's control of treatment and adaptation to lifestyle change
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
Encryption of images carrying steganographed texts using chaotic systems, artificial vision and DNA coding
No full textEn este trabajo se propone un algoritmo que une la criptografía y la esteganografía, para ocultar textos en los bordes de una imagen a color gracias a técnicas propias de la visión artificial, generando posteriormente una criptoimagen la cual se construye aplicando sistemas caóticos y codificación ADNThis paper proposes an algorithm that combines cryptography and steganography, to hide texts on the edges of a color image thanks to artificial vision techniques, later generating a cryptoimage which is built by applying chaotic systems and DNA codin
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
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
Deposition, Heavy Organic Compounds, Casing, Bottom Hole Equipment, Surface Equipment, Production Casing, Transport Line, Oil Pipelines, Storage Tank
No full textLa deposición de compuestos orgánicos complejos y pesados, que existen en el crudo de petróleo y aceite pesado, puede causar una serie de problemas graves cuando se incrustan en los orificios del revestidor de acero, equipos de fondo de pozo, equipos de superficie, tubería de producción, líneas de transporte, oleoductos, tanque de almacenamiento y en la misma formación productiva obstruyen el hueco e interrumpe el flujo normal de los fluidos, disminuyendo evidentemente la producción y produce perdidas económicas. Ante la coyuntura actual muchos yacimientos de petróleo pesado parafinicos y asfalténicos ahora pueden ser explotados de forma rentable lo que constituye desempeñar un rol muy importante en el futuro de la industria petrolera y muchos países están tendiendo a incrementar su producción conforme a las estimaciones de reservas, así como comprobar nuevas tecnologías que comprometen recursos para su extracción. El presente trabajo es una revisión bibliográfica de conceptos teóricos que constituye una herramienta para entender los factores y las consecuencias que influyen como mecanismos de precipitación y depositación de asfáltenos y parafinas en la formación productora y en la tubería de producción. Igualmente, el tema de investigación presenta una metodología a seguir con orientación descriptiva y conceptual que permite desarrollar habilidades técnicas para controlar y remover la acumulación de solidos orgánicos desde el yacimiento, cara del pozo, tubería de producción, equipos de superficie y tanques de almacenamiento y, esto posibilita a los especialistas de producción pronosticar la formación de crudos pesados. Por último, es imprescindible fomentar un método para el control y remoción de las parafinas y asfáltenos que se sea rentable y constituya una alternativa económica adaptable a las condiciones del campo para reducir los costos de intervención sin llegar a perjudicar la operaciónEspecializaciónEspecialista en Producción de HidrocarburosStudy concept of methodology used for the control and removal of solid organic deposits in face well, pipe production, equipment surface and storage tank
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