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Publications and author cocitations in library and information science in Spain during the period from 1985 to 1994 were analyzed as a measure of the structure, specificity and composition of research fronts in this country. A cocitation matrix developed from an ad hoc database was subjected to cluster analysis, multidimensional scaling and principal components analysis, The resulting cocitation maps identified specific areas of r~search and their knowledge bases. We inferred the degree of consolidation of the discipline of library and information science, and of the subdisciplines informetrics, librarianship and university affiliation, from the research activities revealed. In this respect, the conclusions from the study show the existence of several research fronts in Spanish literature the contents of which are in most cases difficult to compare with those in other countries. A lesser degree of maturity of research in this field is shown. IntroductionMo~t researchers are familiar with the authors, specialties, and literature produced in their own field; however, the conceptual and methodological framework that makes it possible to objectively elucidate the structure of different fields of science has been available only since the 1960s. Analyses of these concepts and methods have been aimed at tracing the development of scientific activity and improving its efficiency. The first half of the 1960s saw the establishment of a nexus between the network of relations among scientific papers through references and citations, and the structure of specialities within a given field (Pricel). This relationship led to the development of concepts such as research fronts, invisible colleges, and science maps; current data representation techniques based on multivariate analysis for reducing the number of + To whom correspondence should be addressed.

Resumen: Se presenta una evaluación de la aportación a la producción científica de los contratados Ramón y Cajal de la Universidad de Granada. Para ello se contextualiza a nivel nacional el número de contratados Ramón y Cajal de la Universidad de Granada y se analiza su productividad e impacto en la Web of Science. Los resultados revelan que un 79% de los Ramones y Cajales se estabilizaron en la universidad. Han firmado el 10% de los trabajos siendo un 4% del Personal Docente e Investigador. Su productividad es de 2,29 artículos al año frente al 0,66 del resto de doctores de la Universidad de Granada. Publican en revistas científicas de mayor impacto y tienen un promedio de citas más elevado. Finalmente, se concluye, que una carga docente inferior y procesos de evaluación con criterios más exigentes, son claros factores que determinan el mejor rendimiento de los contratados Ramón y Cajal.Palabras clave: Universidad de Granada; investigación; programa Ramón y Cajal; indicadores bibliométricos; política científica. The Cajal effect: bibliometric analysis of the Ramón y Cajal program at the University of GranadaAbstract: We analyze the contribution of the Ramón y Cajal Program to the scientific output of the University of Granada. We present the situation of Ramón y Cajal researchers at the University of Granada within the national context and analyze their output and impact according to the Web of Science. The results show that 79% of the Ramón y Cajal researchers obtained permanent positions at the University of Granada. Although representing only 4% of the research staff, they submitted 10% of papers. They produce an average of 2.29 articles per year compared with an average of 0.66 articles per year produced by the rest of the University's PhD staff. Ramón y Cajal researchers publish in higher impact journals and have higher citation averages. Finally, we conclude thet fewer teaching responsibilities and the rigorous evaluation process of the Ramón y Cajal Program, are factors that determine the best performance of this reserch collective.

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Rafael. «Producción española en biblioteconomía y documentación con visibilidad internacional a través del Web of science (1995-2004)». En: El profesional de la información, 2006