Search results

The purpose of this paper is to describe and analyse the methodology quality of the literature search protocols of systematic reviews and to assess the relevance of the search filter that applies PubMed for retrieving this type of publication of the MEDLINE database.

For the selection of the document type, a literature search about nutritional and metabolic diseases was carried out in MEDLINE and the PubMed filter was used for retrieving “Systematic Reviews”, selecting “Nutritional and Metabolic Diseases” from the Medical Subject Headings (MeSH) database as Major Topic to determine the area of knowledge. Data analysis was carried out using “External Logistic Biplot”, a novel multivariate statistical technique in the field of medical documentation.

The results highlight the large variability of the methodology used in the literature search protocols of the systematic reviews analysed and confirm the low precision of the filter used by PubMed for the recovery of systematic reviews.

The Logistic Biplot used in this research allows an optimal categorization of the different documentary typologies and classifies the documents by their methodological quality, demonstrating its usefulness for the future development of the bibliometric analysis.

The purpose of this paper is to report the benefits of scientific communication model of open access (OA) repositories to e-theses. Specifically, the study focusses on the benefits of accessibility, dissemination, visibility and impact of PhD e-theses deposited in repositories.

The study analysed a random sample of 125 PhD e-theses deposited in an OA repository, specifically in the institutional repository (IR) of the University of Salamanca (Gredos). It tracked the sample for analysing on one side the visits and downloads of the e-theses, whose data are obtained from the statistics module of the repository, and on the other side the data citation provided by Google Scholar Citation on these e-theses. To analyse the differences between the indicators (visits, downloads and citations) in different knowledge areas, the Kurskall-Wallis test has been used.

The results indicate that OA IRs become an advantageous channel of scientific communication to grey literature like dissertations and PhD theses, because it increases visibility and use and also produces a significant citation rate.

The paper uses metrics that are used in IR to measure the visibility and impact of a type of grey literature that is very difficult to track because it is unpublished. The dissemination of the grey literature through OA repositories makes it possible. The value of the work lies in the empirical evidence obtained from the analysed PhD e-theses of Gredos repository.

In Spain, recent experiences by publishing houses are related to the new market of electronic books and they will change the current publishing scene in no time. The paper aims to discuss some of them and to give an outlook of future developments in the sector and in the libraries.

In order to develop the current situation of electronic publishing and the research on the initiatives of production and sales of electronic books, the authors used statistical and business sources, as well as bibliographic and reference databases. They assessed the experiences that have been developed in the libraries regarding the lending and use of electronic books, by means of a survey that considers these points.

There are several working experiences with electronic books, mainly through the subscription of collections in university and research libraries. However, the latest innovation is represented by the appearance of initiatives for the production and creation of publishing contents in Spain. The publication of electronic books in Spain has gone from being a mid‐term possibility, calmly accepted by the publishing sector, to being an unstoppable reality that has forced the main actors in this field to take their positions and to adopt immediate initiatives.

This is the first time that an analysis of the sector of electronic books in Spain and their implications for library and publishing sector is done.