RESUMO
This paper presents a large-scale document-level comparison of two major bibliographic data sources: Scopus and Dimensions. The focus is on the differences in their coverage of documents at two levels of aggregation: by country and by institution. The main goal is to analyze whether Dimensions offers as good new opportunities for bibliometric analysis at the country and institutional levels as it does at the global level. Differences in the completeness and accuracy of citation links are also studied. The results allow a profile of Dimensions to be drawn in terms of its coverage by country and institution. Dimensions' coverage is more than 25% greater than Scopus which is consistent with previous studies. However, the main finding of this study is the lack of affiliation data in a large fraction of Dimensions documents. We found that close to half of all documents in Dimensions are not associated with any country of affiliation while the proportion of documents without this data in Scopus is much lower. This situation mainly affects the possibilities that Dimensions can offer as instruments for carrying out bibliometric analyses at the country and institutional level. Both of these aspects are highly pragmatic considerations for information retrieval and the design of policies for the use of scientific databases in research evaluation.
RESUMO
This article describes an analysis of keywords which was aimed at revealing publication patterns in the field of Food Science (FS) during the last decade, including the temporal evolution of its different research lines. To this end, the records of the specific subject area of FS were 1st retrieved from Scopus, and then their keywords were processed to resolve the obvious problems of synonymy and to limit the study to those most frequently used. These keywords were grouped into thematic clusters based on a scientometric technique known as co-word analysis. The structure of the clusters, their scientific impact, and their temporal evolution were then analyzed. This type of analysis is of great interest for all researchers in FS-for new researchers because they can form an objective vision of the subject based on the data from papers that have been published in the last decade, and for experienced researchers because they can contrast their own vision of the field with this objective overview. The results showed there to has been a clear increase in scientific production related to FS. This production had a structure corresponding to 5 major clusters which were themselves disaggregated into 18 2nd-level clusters. The cluster that had received most attention was that corresponding to antioxidants in food, being the cluster with the greatest scientific impact and the greatest growth in the period.
RESUMO
Food Science is an active discipline in scientific research. The improvements in Food Technology constitute a challenge for society to eradicate hunger, while achieving food safety. This work analyses the scientific production in Food Science of the 25 countries with the greatest output in this subject area in the period 2003 to 2013. The growth of China's production was striking, with the country becoming top-ranked by the end of the period. Some developing countries (such as Nigeria) achieved a major increase in production but reducing their proportion of scientific collaboration and their works' impact. There appear to be 2 international collaboration networks that get good results--one European and the other Pacific.
Assuntos
Tecnologia de Alimentos , Alimentos , Pesquisa , China , Comportamento Cooperativo , Dieta , Europa (Continente) , Tecnologia de Alimentos/tendências , Humanos , Internacionalidade , Nigéria , Oceania , CiênciaRESUMO
This study examines world scientific production in Psychology based on bibliometric indicators (scientific production, production's percentage variation, average citations per document, normalized citation, impact, etc.), for the period 2003-2008. The analysis is made by country, by research institutions, and scientific journals, using the Scopus (Elsevier), database of scientific literature. The results show that total world production has increased over the period studied. Four groups are acknowledge for each country, institutions, and journals, taking into account their values of scientific production, normalized citation, and subject specialization.
Este estudio examina la producción científica mundial en psicología sobre la base de indicadores bibliométricos (producción científica, variación en los porcentajes de producción, promedio de citaciones por documento, impacto, etc.) para el periodo 2003-2008. El análisis se realiza por país, por instituciones de investigación y por revistas científicas, usando la base de datos de literatura científica Scopus (Elsevier). Los resultados muestran que la producción mundial total se ha incrementado durante el periodo estudiado. Se distinguen cuatro grupos de cada país, instituciones y revistas, basados sobre los valores de producción científica, citación normalizada y área de especialización.
RESUMO
Con este estudio pretendemos conseguir una aproximación a la representación actual de la estructura intelectual de la Psicología en España, como dominio de conocimiento científico. Para ello, utilizamos el Análisis de Dominio como enfoque teórico que permite escoger el método bibliométrico más adecuado para desvelar la estructura intelectual de una disciplina; este método, denominado análisis de cocitación, está caracterizado por su objetividad y, en este caso, utiliza la revista como unidad de medida. Por tanto, la representación resultante nos permite hacer agrupaciones en conjuntos de revistas, según su similitud temática, consiguiendo así delimitar las diferentes líneas o frentes de investigación que conforman la estructura intelectual actual de la Psicología Española.
The intention in this article is to represent the ongoing intellectual structure of Psychology research (as domain of scientific knowledge) in Spain. To this end within the domain analysis the most suitable bibliometric method to reveal the intellectual structure of the discipline in Spain has been selected. This method is cocitation analysis, which is characterized by its objectivity, and in this case, with journals as the unit of measurement. Therefore the resulting representation permits us to group the journals according to the similarity of subject matter marked by the uses of Spanish researcher. This shows different research lines or fronts that shape the intellectual structure of Spanish Psychology.
Assuntos
Bibliometria , Pesquisa/métodosRESUMO
This work aims to reveal some aspects of the scientific domain of Psychology, in the context of the internationally visible Spanish science in the databases of the Citation Index of The Institute for Scientific Information (ISI), which is represented by a map. We used the methodology of cocitation of thematic categories (JCR-Thompson Scientific), with which we obtained a representation of the scientific activity. The resulting map allowed us to focus on the area of Psychology, whose representation acts as database for the analysis of this discipline in the scientific field with international visibility. This study offers an empirical view of the underlying structure of Spanish Psychology. This is important because most scientists have an intuitive idea of this structure, but this may or may not be real. This way, we present a global vision of the entire discipline that favours its objective analysis as a function of scientists' behaviour as it affects their patterns of communication through the established formal channels.
Assuntos
Psicologia/estatística & dados numéricos , Editoração/estatística & dados numéricos , Ciência/estatística & dados numéricos , Humanos , Espanha/epidemiologiaRESUMO
El objetivo de este trabajo es desvelar algunos aspectos del dominio científico de la Psicología, en el contexto de la ciencia española visible internacionalmente en las bases de datos Citation Index del Institute for Scientific Information (ISI), representada ésta a través de un mapa. Para ello utilizamos una metodología de cocitación de categorías temáticas (clasificación JCR-Thompson Scientific) que nos facilita la representación de la actividad científica. El mapa resultante permite focalizar el área de Psicología, cuya representación nos servirá como base de información para el análisis de la disciplina en el ámbito científico con visibilidad internacional. Con este estudio se ofrece una visión empírica de la estructura que subyace en la Psicología, esto es de importancia puesto que la mayoría de los científicos tienen una idea intuitiva de esta estructura, que puede o no corresponderse con la realidad, pero de esta manera se les presenta una visión global de toda la disciplina que favorece el análisis objetivo de la misma en función del comportamiento de los científicos en cuanto afecta a sus pautas de comunicación a través de los canales formales establecidos (AU)
This work aims to reveal some aspects of the scientific domain of Psychology, in the context of the internationally visible Spanish science in the databases of the Citation Index of The Institute for Scientific Information (ISI), which is represented by a map. We used the methodology of cocitation of thematic categories (JCR-Thompson Scientific), with which we obtained a representation of the scientific activity. The resulting map allowed us to focus on the area of Psychology, whose representation acts as database for the analysis of this discipline in the scientific field with international visibility. This study offers an empirical view of the underlying structure of Spanish Psychology. This is important because most scientists have an intuitive idea of this structure, but this may or may not be real. This way, we present a global vision of the entire discipline that favours its objective analysis as a function of scientists behaviour as it affects their patterns of communication through the established formal channels (AU)
