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From the information provided for free by Thomson Reuters in ScienceWatch.com, production and citation data of the scientific disciplines are analyzed for Spain, determining the relative weight of each one both nationally and internationally throughout the past 10 years.

Objectives: To analyze scientific activity in Latin American nursing using bibliometric indicators. Materials and Methods: This is a quantitative, descriptive study of the universe of Latin American nursing journals (119) and scientific documents(13,208) published according to current library databases including: the Web of Science (WOS), Medline, LILACS, Periodica, Cuiden, and SciELO. A database was prepared using ProCite. Results: The PAHO (Pan American Health Organization) Open-access Directory of Latin American Nursing Journals includes the greatest number of the 119 journal titles (60%). The average journal longevity is 11.3 years and Brazil produces the greatest percentage (31.9%) of journals. Of the current journals, 55% do not have international readership. The non-Latin American countries that contribute most to document diffusion are Spain, the United States, and England. The doubling time of scientific production of documents is 7.3 years and the annual growth rate is 10%; 2% of researchers form the most productive group of authors. Only in recent years has the number of contributions to the ISI nursing category begun to stabilize. Conclusions: Latin American scientific nursing production is still growing exponentially and Latin American nursing contributions to knowledge being disseminated through databases of recognized scientific quality seem to be increasing. The current scientific task is to organize and improve the publication processes. Clinical Relevance: We describe the conditions in which Latin American nursing research has become institutionalized, the challenges that it has faced, and the gradual incorporation of such research into international science.

The aim of this study is to make an analysis of the citation networks between the Spanish Social Science journals using the citations index IN-RECS. Different maps were generated representing the overall structure of Social Sciences and a specifi c analysis of Library and Information Science was conducted. The indicator betweeness was used as a measure of interdisciplinarity. The results reveal the existence of two main clusters, one formed by the Psychology and the Education and other with a prominent location of the Economics and the Political Science; Sociology is the main connexion between the two clusters. The journals with the highest rate of betweeness were Revista de Educación and Papeles de Economía. The Library and Information Science appears in a marginal side of the different maps. Revista Española de Documentación Científica is the most relevant journal with the largest betweeness rate due to its significant relationships with international journals. The results show that IN-RECS is a useful tool for the structural study of the Spanish Social Sciences.

An analysis about spanish publication output´s international visibility between 1995-2004 is presented

The visualization of scientific field structures is a classic of scientometric studies. This paper presents a domain analysis of the library and information science discipline based on author co-citation analysis (ACA) and journal cocitation analysis (JCA). The techniques used for map construction are the self-organizing map (SOM) neural algorithm, Ward’s clustering method and multidimensional scaling (MDS). The results of this study are compared with similar research developed by Howard White and Katherine McCain [1]. The methodologies used allow us to confirm that the subject domains identified in this paper are, as well, present in our study for the corresponding period. The appearance of studies pertaining to library science reveals the relationship of this realm with information science. Especially significant is the presence of the management on the journal maps. From a methodological standpoint, meanwhile, we would agree with those authors who consider MDS, the SOM and clustering as complementary methods that provide representations of the same reality from different analytical points of view. Even so, the MDS representation is the one offering greater possibilities for the structural representation of the clusters in a set of variables.

An analysis of scientific production all over the world is described.

BACKGROUND AND OBJECTIVE: The goal is to determine the significance of the Spanish contribution and the real impact of papers signed by Spanish scientists in a sample of leading scientific journals. MATERIAL AND METHOD: Sectional descriptive study of 252 papers with Spanish institutional participation in the following journals Nature, Science, PNAS, NEJM, JAMA and Lancet during the period 2004-2005. The participation percentage of Spanish institutions and responsibility is counted in each paper differentiating between papers signed only by Spanish authors, papers signed by Spanish authors in first or last position and papers signed by Spanish authors in intermediate positions. For measuring impact we compared the journal Impact Factor, according to JCR 2006, with the actual Factor that articles signed by Spanish Authors reached taking into account the different degrees of participation and responsibility. RESULTS: Spanish output in leading journals is 2,1% which is below the global productivity of Spain(3,25%). Both Spanish contribution and leadership are poor: for every 10 institutions that signed the articles only 2 of them were Spanish and in 54% of the cases Spain played a secondary role (intermediate signing order). The actual impact of the Spanish papers is really small. Papers where Spanish scientists have more responsibility got less impact than the expected JCR Impact of the different journals: 54% less in the case of papers written only by Spanish authors and 45% less in the case of articles signed in first/last position by Spanish authors. CONCLUSIONS: The impact of Spanish science in leading journals is below the level projected by previous bibliometrics studies. The indicators measuring the degree of participation (proportional counting) and responsibility (signing order) show that Spanish scientific publications still have a long way to go to reach the top of world science.

In this work, we compare the difference in the number of citations compiled with Scopus as opposed to the Web of Science (WoS) with the aim of analysing the agreement among the citation rankings generated by these databases. For this, we analysed the area of Health Sciences of the University of Navarra (Spain), composed of a total of 50 departments and 864 researchers. The total number of published works reflected in the WoS during the period 1999-2005 was 2299. For each work, the number of citations in both databases was recorded. The results indicate that the works received 14.7% more citations in Scopus than in WoS. In the departments, the difference was greater in the clinical ones than in the basic ones. In the case of the rankings of citations, it was found that both databases generate similar results. The Spearman and Kendall-Tau coefficients were higher than 0.9. It was concluded that the difference in the number of citations found did not correspond to the difference of coverage of WoS and Scopus.

A parameterisation of ANEP citation indicators is presented.

A bibliometric analysis of social and human science production is presented.

An analysis of scientific activity in Biomedicine in Murcia between 1999-2005 is presented.

The analysis of the scientific output in the health sciences is a complex proccess and there not exists a methodology accepeted by researchers, institutions and research evaluation agencies. On the other han, there is a growing interest by these groups in evaluating the performance of research systems. The impact of journals is one way to determine this performance but traditionally it has been limited to the ISI database.In this paper, taking as starting point a science specialty like Psichiatry,a comparative study of new databases useful for this kind of analysis has been carried out. We have applied a pool of bibliometric indicators well known that offers the possibility of making comparisons between them. The reference choosen for alls is the ISI-JCR.

An analysis of three aspects of Bibliometry : evolution,contents and importance in Information science is presented.

A commentary of "Reseña del Diccionario enciclopédico de Bibliometría, Informetría y Cienciometría" is presented.

A commentary of "Reseña del libro Bibliometría: análisis bivariante" is presented.