1,720,988 research outputs found
Desarrollo de un prototipo para el monitoreo de las variables involucradas en el cultivo de fresas en el corregimiento de Obonuco
Full text linkLas malas prácticas agrícolas afectan la sostenibilidad del suelo y la calidad de los cultivos, generando impactos negativos en el ambiente y la salud humana. Ante esta situación, los cultivos en ambientes controlados y tecnologías como las Buenas Prácticas Agrícolas, la agricultura de precisión y los sistemas bajo invernadero ofrecen soluciones sostenibles y eficientes, mejorando la productividad y reduciendo el uso de insumos químicos. En Nariño, la adopción de estas innovaciones es clave para aumentar la competitividad agrícola, especialmente en el cultivo de fresa, un producto con alto potencial en mercados nacionales e internacionales. Este proyecto propone la implementación de un sistema de monitoreo en ambiente controlado en Obonuco, Nariño, para optimizar las condiciones de producción, mejorar la calidad del fruto y promover una agricultura más rentable y sostenible en la región
Optimización del ruteo de vehículos en la distribución de la última milla con ventanas de tiempo (VRPTW)
No full textEsta investigación se centra en la optimización de las rutas de entrega para pequeñas y medianas empresas (PYMES), un desafío crucial en la logística de "última milla" donde la eficiencia impacta directamente en costos y satisfacción del cliente. El estudio propone que la implementación de un modelo matemático de ruteo de vehículos con ventanas de tiempo (VRPTW), ajustado a las necesidades específicas de las PYMES y complementado con un sistema automatizado de toma de decisiones, puede mejorar significativamente la eficiencia logística. Para demostrarlo, se plantea la revisión de modelos VRPTW existentes, el desarrollo de un modelo adaptado, la creación de un sistema de optimización basado en inteligencia artificial y la validación de este sistema con datos simulados y reales.
El objetivo final es ofrecer a las PYMES una herramienta práctica para optimizar sus rutas de entrega, reduciendo costos operativos, mejorando la puntualidad y fortaleciendo su competitividad en el mercado. La investigación busca no solo aplicar modelos teóricos, sino también aprovechar tecnologías emergentes como la inteligencia artificial para automatizar procesos logísticos complejos y tomar decisiones más informadas. Al adaptar los modelos a las particularidades de las PYMES y considerar la incertidumbre en las ventas, se espera lograr resultados significativos en la mejora de la logística de última milla.PregradoIngeniero en IndustrialIngeniería Industria
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
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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