[Scientific collaboration and article citations: practices in medical journals].

Objective: In order to characterize scientific collaboration the best way is to study co-signature of articles. Two indicators are interesting: number of authors and international character. The objective is to study correlation between these two indicators and citation number.

[Comparative analysis of impact factor and h-index for pharmacology journals].

Using the strictly same parameters (identical two publication years (2004-2005) and identical one-year citation window (2006)), impact factor (IF) 2006 was compared with h-index 2006 for one sample of "pharmacology and pharmacy" journals computed from the ISI Web of Science. For this sample, the IF and the h-index rankings of the journals are very different. The correlation coefficient between the IF and the h-index is low for "pharmacology and pharmacy" journals.

[Correlation between document supply and citations in pharmacology].

Purpose: Investigation of the correlation between document supply by INIST-CNRS (Institut National de l'Information Scientifique et Technique) and citations of 89 pharmacology and pharmacy periodicals in 1992-2004. Investigation of the influence of electronic periodicals.

Methods: Analysis of the cards of document supply-citation correlation for the 89 periodicals during 13 years.

[Authors' affiliations and addresses in published articles. Lack of care penalizes French universities in international rankings].

Objective: To assess, through the example of the université Claude Bernard Lyon 1, whether the poor international visibility of French universities may be due in part to a lack of care by researchers in listing their affiliations and address on their scientific publications.

Method: Querying the heading "address" of Medline, Embase.com and Pascal Biomed for 2003 in searches for publications from Université Claude Bernard Lyon 1.

[Analysis of European pharmaceutical journal diffusion: the example of the principal French document supplier].

Our purpose was to analyse the process of providing papers, edited by european pharmaceutical journals, by the main French document supplier, "Institut National de l'Information Scientifique et Technique" linked to the "Centre National de la Recherche Scientifique" (INIST-CNRS). After having given a definition and built up a corpus of 289 journals, orders about them during 1996-1998 were analysed. Then, the possible relationships between orders to INIST-CNRS and impact of journals on scientific community (from Institute for Scientific Information (ISI) data) were examined.