Introduction: Publication delay, chronological distance between completion of a scientific work and distribution of its achievements as a peer reviewed paper, is a negative phenomenon in scientific information dissemination. It can be further subdivided in successive stages corresponding to the peer review process and the technical preparation of accepted manuscripts. Formal online posting in electronic versions of journals has been considered as a shortening of the process.Objectives: To determine publication delay in a group of leading Food Research journals, as well as factors affecting this lag and also to compute the effect of formal online posting on the distribution of papers in electronic form. Secondary objective is also to study the possible effect of informal posting of papers through some repositories on the publication delay in the field.Methods: 14 Food Research journals were selected and 4836 papers published in 2004 were examined. Dates of first submission, submission of revised manuscripts, acceptation, online posting and final publication were recorded for each paper.Analysis: Data collected were analyzed using SPSS and SigmaPlot. Parametric correlation between some variables was determined and ANOVA was performed with BMDP package for significance analysis of differences among journals.Results: average publication delay of papers submitted to the set of selected journals is 348 ± 104 days, with European Food Research and Technology and Journal of Agricultural and Food Chemistry showing the shortest delays. Total delay strongly depends on the peer review process. On average, 85.75 % of manuscripts are corrected prior to their acceptance by journals. Online posting of papers prior to their print publication reduces total delay in about 29 %. On average, a paper is posted online 260 days after its submission to the set of journals.Conclusions: Publication delay of papers is strongly dependent on the peer review process, which affects most of the manuscripts in the Food Research field. Advanced online publication through formal posting at the editor's sites only slightly reduces the time between reception and final publication of papers.

El 31 de Julio de 2008, Mathieu Bastian lanzó por primera vez Gephi, que definía como una plataforma para la visualización interactiva y la exploración de todo tipo de redes, sistemas complejos y grafos dinámicos y jerárquicos. Junto a sus colaboradores Sebastien Heynmann y Mathieu Jacomy habían desarrollado Gephi para "importar, exportar, manipular, analizar, filtrar, representar, detectar comunidades y exportar grandes grafos y redes" (Bastian, Heymann, & Jacomy, 2009). Aquella primera versión (Gephi 0.6alpha1) alcanzó las 246 descargas; la última versión estable, Gephi.8.2beta, se ha descargado 311.742 veces desde su lanzamiento, en Diciembre de 2012, mientras el kit de desarrollo correspondiente ha alcanzado las 5019 descargas («timeline : Gephi», s. f.). Y siguen. Gephi está construido sobre la plataforma NetBeans 7.0 y programado en Java y OpenGL. Se distribuye bajo una licencia dual GNU GPL v3 y Common Development and Distribution License (CDDL-1.0). Es, por tanto una aplicación de código abierto y multiplataforma (Bastian et al., 2009). Seguro que estas características son responsables de su éxito. Pero no de todo su éxito, hay más. Gephi surgió en un panorama claramente dominado por aplicaciones monoplataforma, desequilibradas y con una curva de aprendizaje realmente abrupta. Dos aplicaciones muy populares, Pajek 2 y Ucinet/Netdraw 3 , están limitadas al entorno

Editorial delay, the time between submission and acceptance of scientific manuscripts, was investigated for a set of 4,540 papers published in 13 leading food research journals. Groups of accelerated papers were defined as those that fell in the lower quartile of the distribution of the editorial delay for the journals investigated. Delayed papers are those in the upper quartile of the distribution. Editorial stage is related to the peer review process and two variables were investigated in search of any bias in editorial review that could influence publication delay: countries of origin of the manuscript and authors' previous publishing experience in the same journal. A ranking of countries was established based on contributions to the leading food research journals in the period 1999-2004 and four categories comprising heavy, medium, light and occasional country producers was established. Chi square tests show significant differences in country provenance of manuscripts only for one journal. The results for influence on editorial delay of cross-national research and international collaboration, conducted by means of the Fisher statistic test, were similar. A two-tailed Student's t test shows significant differences (p<0.05) in the distribution of experienced and novel authors across the delayed and accelerated groups of papers. Although these results are time and discipline limited, it can be concluded that authors' publishing experience causes a faster review and acceptance of their papers and that neither country of provenance nor cross-national research influence the time involved in editorial acceptance of the papers.

We examine open access to the Spanish scientific literature via investigation of a sample of peer‐reviewed articles in seven subject categories. Of the 28,259 papers published in 2000, 26.89% were freely accessible, with the share varying among disciplines. Articles in the social and behavioral sciences were the most widely available for free. This disciplinary divide applies also to the strategies used to offer open access to documents. In clinical medicine, life sciences, arts and humanities and social sciences open access was mainly based on the publishers' side, while subject‐based repositories were dominant in physical, chemical and earth sciences and deposit on homepages was the preferred strategy in engineering, computing and technology. Institutional and general repositories seem to play a minor role in providing free access to the Spanish peer‐reviewed literature. Papers published in commercial journals are less accessible than those that appear in non‐commercial journals, and we found overlaps in almost 20% of papers deposited. The fastest way to gain open access is to deposit in subject‐based repositories and the longest delays are related to deposits in homepages and especially to institutional repositories. Open access to Spanish peer‐reviewed articles is dominated by the passive mechanism of the “gold route” and the editorial strategy with self‐archiving practices in the minority and directed mainly towards subject‐based repositories and homepage posting of the papers. The results of this study could serve as a reference point for further study on the evolution of open access in Spain.