1,721,007 research outputs found
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
Airbnb in Latin America: A literature review from an urban studies perspective
No full textSince its appearance twelve years ago, the digital platform Airbnb has revolutionized the temporaryaccommodation system worldwide, leading to diverse territorial impacts beyond the tourism andhospitality industries. Despite its distinct presence in Latin America, there is no review of the existingacademic literature in the region to date. Against this backdrop, the purpose of the article is to developa literature review of Airbnb in Latin America from the critical perspective of urban studies. To do so,exploratory-descriptive research was carried out based on the review of scientific publications thataddressed the topic of Airbnb, up to and including 2020, in four international academic journaldatabases: Scopus, Dialnet, Scielo and Redalyc. The main results show that the existing literature onAirbnb in urban studies in Latin America is still at an early stage, with little development compared tothat of other world regions, where the tourism and business model approaches seem to occlude otherfacets of the phenomenon. These results made it possible to outline a future research agenda ontemporary accommodation in the region.Fil: Lerena Rongvaux, Natalia María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro de Estudios Urbanos y Regionales; ArgentinaFil: Rodriguez, Luciana Mabel. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Geografía "Romualdo Ardissone"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
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
Optimización de un método analítico para la determinación de contaminantes emergentes en matrices acuosas
Get PDFLos contaminantes emergentes (CE) son compuestos de distinto origen y naturaleza química cuya presencia en el ambiente se debe mayoritariamente a los vertidos de efluentes urbanos. Particularmente, los principios activos farmacéuticos están recibiendo considerable atención de la comunidad científica, siendo necesario el desarrollo de metodologías analíticas
que permitan su identificación y cuantificación. El objetivo del presente trabajo fue optimizar un procedimiento analítico de extracción en fase sólida (SPE) para la determinación simultánea de cuatro CE: paracetamol (PAR), cafeína (CF), diclofenac (DIC) e ibuprofeno (IBU) en matrices acuosas de diferentes propiedades fisicoquímicas. Se utilizó la técnica SPE y se ensayaron diferentes métodos (denominados M1, M2 y M3), en los que se variaron las condiciones de acondicionamiento, elución y adsorbentes. Con el objetivo de comparar la eficiencia de extracción del adsorbente Oasis HLB® con Strata X®, se
realizaron SPE en muestras analíticas preparadas con agua ultrapura y fortificadas con 15 mg/L de CE, utilizando M1 y M2 para cada adsorbente. Para evaluar la influencia del pH de la matriz, se realizó SPE para cada uno de los métodos estudiados, utilizando Strata X® como adsorbente, a tres condiciones de pH (3, 7 y 10). Para estudiar el efecto de la presencia de materia orgánica
soluble (MOS), se realizó extracción según M3 a muestras analíticas de soluciones a distintas concentraciones de MOS (5, 10 y 20 mg/L) a pH 10 y fortificadas con CE.
Los resultados de la comparación de los adsorbentes Oasis HLB® y Strata X® muestran que ambos adsorbentes proveen resultados que no presentan diferencias estadísticamente significativas, excepto para el PAR. Por este motivo, se decide trabajar con el adsorbente Strata X® dado que es el más económico y se encuentra disponible en el Laboratorio de Cromatografía, ya que se utiliza en otras determinaciones. Los resultados del estudio del
efecto del pH del agua, sólo presentan diferencias en los porcentajes de recuperación (%R) para el M3; sin embargo, CF, DIC e IBU, extraídos por este método, muestran los mayores valores de %R. En la evaluación del efecto de la presencia de MOS se evidencia que no hay diferencia significativa (p<0,05), respecto del blanco para la CF, DIC e IBU.
El método 3 propuesto es recomendado como un buen método de extracción de CF, DIC e IBU de matrices acuosas; siendo un método robusto y sencillo aplicable en un amplio rango de pH y en presencia de MOS. Sin embargo, dada los bajos porcentajes de recuperación obtenidos para el PAR, se recomienda evaluar otras condiciones para la extracción de este compuesto.Fil: Zeballos Rodriguez, Luciana. Universidad Nacional del Comahue. Facultad de Ciencias del Ambiente y la Salud; Argentina
Consumer experiences as new tourism products: The promotion of festivals and events in the Autonomous City of Buenos Aires
Get PDFAnte la premisa de competir en el mercado turístico internacional, las ciudades son promocionadas por sus gobiernos locales, ofreciendo una serie de atractivos crecientemente orientados hacia formas activas de consumo, con énfasis en recursos culturales intangibles. Lo que se define como turismo creativo. En este contexto, el marketing urbano se presenta como el instrumento dominante de la política turística, un medio para proyectar estos nuevos productos hacia sus consumidores. La ciudad de Buenos Aires no escapa a esa dinámica. Inmersa en una intensa promoción turística emprendida por su gobierno local, incorpora a la oferta turística tradicional nuevos atractivos basados en prácticas culturales, como parte del desarrollo de experiencias urbanas competitivas. A través de una metodología cualitativa, basada en la sistematización y análisis de los Festivales y Eventos ofertados a través de su página de turismo oficial, el artículo analiza cómo se capitaliza el turismo creativo para la creación de los nuevos productos turísticos en la ciudad de Buenos Aires. Los resultados obtenidos permiten constatar una tendencia creciente al turismo creativo ligada al desarrollo de productos gastronómicos y artísticos, con reducción de la intervención estatal y primacía del marketing en su desarrollo.Given the proposition of competing in the international tourism market, cities are promoted by their local governments, offering a series of attractions increasingly oriented towards active forms of consumption, with emphasis on intangible cultural resources, what is defined as creative tourism. In this context, urban marketing is presented as the dominant instrument of tourism policy, a means to launch these new products to their consumers. The city of Buenos Aires does not escape this dynamic. Immersed in an intense tourist promotion undertaken by its local government, it incorporates to the traditional tourist offer new attractions based on cultural practices, as part of the development of competitive urban experiences. Through a qualitative methodology, based on the systematization and analysis of the Festivals and Events offered through its official tourism page, the article analyzes how creative tourism is capitalized for the creation of new tourism products in the city of Buenos Aires. Aires the results obtained confirm a growing trend in creative tourism linked to the development of gastronomic and artistic products, with a reduction of state intervention and the primacy of marketing in its development.Fil: Rodriguez, Luciana Mabel. Universidad de Buenos Aires. Facultad de Filosofía y Letras. Instituto de Geografía "Romualdo Ardissone"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
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