1,720,961 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
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
Mediciones de Radiación Solar durante el Eclipse Solar Total 2019
Get PDFFil: Pérez Fogwill, Germán Andrés. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección de Productos de Modelación Ambiental y de Sensores Remotos; Argentina.Fil: Copes, Gustavo Emmanuel. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección de Productos de Modelación Ambiental y de Sensores Remotos; Argentina.Fil: Ferrara, Jonathan. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección de Productos de Modelación Ambiental y de Sensores Remotos; Argentina.Fil: Luccini, Eduardo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Ciencia y Técnica. Centro de Excelencia en Productos y Procesos de Córdoba; Argentina. Pontificia Universidad Católica Argentina Santa María de los Buenos Aires; Argentina.Se presentan en esta Nota Técnica resultados de una capaña de medida de un eclipse total ocurrido el 2 de
Julio de 2019. Los autores de este trabajo instalaron en la localidad de Bella Vista (San Juan) un sensor de
radiación UV, un sensor de radiación UV multicanal, un sensor de radiación global y otro de radiación difusa.This technical note presents results from a field campaign organized to observe and register the total eclipse
that took place on July 2nd 2019. A number of instruments were installed at Bella Vista (San Juan), namely, a
UV sensor, a UV multichannel sensor, a diffuse radiation sensor and a global radiation sensor
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
Mantenimiento y verificaciones del analizador de ozono superficial Thermo Environmental Instruments modelo 49C
Get PDFFil: Barlasina, María Elena. Servicio Meteorológico Nacional. Gerencia de Investigación, Desarrollo y Capacitación. Departamento de Vigilancia de la Atmósfera y Geofísica; Argentina.Fil: Carbajal Benítez, Gerardo. Servicio Meteorológico Nacional. Gerencia de Investigación, Desarrollo y Capacitación. Departamento de Vigilancia de la Atmósfera y Geofísica; Argentina.Fil: Sanchez, Ricardo. Servicio Meteorológico Nacional. Gerencia de Investigación, Desarrollo y Capacitación. Departamento de Vigilancia de la Atmósfera y Geofísica; Argentina.Fil: Copes, Gustavo Emmanuel. Servicio Meteorológico Nacional. Gerencia de Investigación, Desarrollo y Capacitación. Departamento de Vigilancia de la Atmósfera y Geofísica; Argentina.La presente nota técnica ha sido elaborada con el objetivo de ser una guía para el mantenimiento de los
analizadores de ozono superficial Thermo modelo 49C instalados en las Estaciones del Servicio
Meteorológica Nacional (SMN). Los procedimientos aquí descriptos son dirigidos a observadores,
operadores y jefes de estación quienes tienen que cumplir con las rutinas de mantenimiento descriptas
aquí, a fin de lograr un correcto funcionamiento de los analizadores de ozono superficial y asegurar la
calidad de los datos obtenidos.This technical note aims to be a guide for the maintenance of the Thermo model 49C surface ozone
analyzers installed in National Meteorological Service stations (SMN). The procedures described here are
intended to observers, operators and station managers who have to comply with the maintenance routines
described here, in order to achieve a correct operation of surface ozone analyzers and ensure the quality
of the obtained data
Análisis de las condiciones de “background” de la estación VAG Ushuaia
Get PDFFil: Barlasina, María Elena. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección Central de Monitoreo del Clima; Argentina.Fil: Carbajal Benítez, Gerardo. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección Central de Monitoreo del Clima; Argentina.Fil: Copes, Gustavo Emmanuel. Servicio Meteorológico Nacional. Dirección Nacional de Ciencia e Innovación en Productos y Servicios. Dirección de Productos de Modelación Ambiental y de Sensores Remotos; Argentina.La siguiente nota técnica, tiene el objetivo principal de analizar el entorno de la estación de Vigilancia
Atmosférica Global (VAG) Ushuaia, analizando distintas concentraciones obtenidas de ciertos tipos de gases
que se miden en la estación, e identificar el sector de la dirección del viento considerado libre de
contaminación antropogénica, o sea que posea condiciones de fondo o background. De esta forma se podrá
así diferenciar e identificar las mediciones realizadas en la estación, entre condiciones de fondo del planeta y
libres de contaminación y las que poseen contaminación antropogénica proveniente de la ciudad de Ushuaia.The following technical note has the main objective of analyzing the environment of the Global
Atmospheric Watch (GAW) Ushuaia station, analyzing different concentrations obtained from certain types of
gases, which are measured at the station and identifying the wind direction considered free of contamination
to have conditions of background. In this way, it will be possible to differentiate and identify the measurements
made at the station, between background conditions of the planet and free of contamination and those that
have anthropogenic contamination from the city of Ushuaia
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