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Background: Brucellosis produces losses in livestock raising in the Americas. This region reports prevalence variations associated with the implementation of control programs, thus requiring an analysis that permits the combination of results to reach conclusions, which may be conducted through meta-analysis. Aim. To estimate the combined prevalence of Brucellosis in Cattle and Buffaloes in Central America and the Caribbean, and South America in the 2010-2021 period, and to analyze the different time performances in all the regions and the species. Materials and methods: Several papers published in electronic databases, such as PubMed / PubMed Central, Science Direct, Scielo, Ebsco, and Google Scholar were selected. Original papers and postgraduate theses available were included, provided they offered information about cattle and buffaloes, using the serological techniques recommended by the World Animal Health Organization, and which provided the sample size and the number of positives. A meta-analysis was done to estimate the combined prevalence of the disease, and the effect on the subgroups was evaluated by meta-regression. Results: Overall, 65 that met the selection criteria were included, 56 related to cattle, and 11 to buffaloes. The combined prevalence was 3.0%; differences between cattle (2.7%) and buffaloes (5.2%) were observed. The differences between the periods studied accounted for 4.3% (2011-2016) and 2.0% (2017-2021), respectively. Conclusions: The combined prevalence of the disease was 3.0%, which was higher in buffaloes, which dropped in the last five years. No differences were observed between the two regions studied. [ABSTRACT FROM AUTHOR]

The Latin American journals of psychology indexed in the Journal of Citation Reports (JCR), are generally edited by professional associations of psychologists, universities and private foundations. This paper analyzes the positioning strategy adopted by the Professional Association of Psychologists of Madrid, regarding the psychological journals in the area in which they edit. The methodological approach taken to explore the topic uses socio-bibliometric techniques gathering numerical data, and then using that data to perform analyses for a well-informed description of what the topic might be. The results reveal that journals, whose editor or co-editor was Professional Association of Psychologists of Madrid, have increased their visibility in recent years, in both, the SCImago Journal Rank (SJR= 8 journals) and that of the Journal of Citation Reports (JCR= 7 journals) with a greater citation count for its articles, and a higher number of views and downloads for the papers published in its journals. The conclusion is, that the positioning strategy adopted by the Professional Association of Psychologists of Madrid was an effective one, involving the unification of certain rules relating to the edition of articles in their journals, the professionalization of editorial management, the electronic publishing with digital publication of journals and using the open access publishing model for scholarly communication that makes research information available to readers at no cost, as well as their integration in the list of international databases. Although a broader strategy concerning gender equality is recommended, the Spanish professional association of psychologists still stands today as the main editorial group of psychological journals indexed in JCR and SJR of Spain [ABSTRACT FROM AUTHOR]

Electronic journals are imposing themselves as the scientific information transmission vehicle. This paper analyzes the main characteristics of electronic journals as well as the available on line resources to obtain all relevant information on electronic and printed journals. This paper also comments on procedures used to spread and to commercialize electronic journals including details on the leading companies and their services. [ABSTRACT FROM AUTHOR]

Book digitization is having a significant impact at all economic, business and legal levels. Concepts that had prevailed since the advent of the printing press more than 500 years ago have to be changed. With self-publishing, authors do not need publishers, and some indie (independent) are getting an enthusiastic public reception, selling hundreds of thousands of copies. For their part, publishers, who traditionally had been confined to one language and one territory, can easily reach a global scale with the advent of the e-book. Large multinational companies like Amazon and Apple have already landed in Europe, and soon they will arrive in the rest of the world. The e-book is not only a change from paper to digital but is also having a substantial impact on reading habits. [ABSTRACT FROM AUTHOR]