ABSTRACT Introduction: the periodic evaluation of the scientific production of a journal is the reliable tool that will allow evaluating the trend and quality of the science published in it. Objective: to characterize the scientific production published in the journal Universidad Médica Pinareña during the period 2017-2020. Methods: a bibliometric study of the articles published in the journal Universidad Médica Pinareña during the period 2017-2020 was carried out. The universe studied consisted of 177 articles. The following variables were analyzed: year of publication, type of article, number of authors, country of origin of the main author, language in which the article was written, number of bibliographic references and their degree of updating. Descriptive statistics were used and the Price and annual collaboration indexes were calculated. Results: it was found that 88 (49,7 %) papers were original and 61 (34,5 %) belonged to the year 2020. A total of 614 authors published, with an average of 3,5 authors per article. It was observed that 58 (32,8 %) articles were signed by five authors, 168 (94,9 %) came from Cuba, and 175 (98,9 %) were written in Spanish. The annual collaboration index had an average value of 3,44. The average number of bibliographic references per article was 13,6 and the Price index was 0,67. Conclusions: the journal had satisfactory metric indicators. There was an increase in originality and adequate updating of its contents; however, there is a tend

The Research Paper Presents a “Content Analysis of “Annals of Library and Information Studies Journal during 2002 to 2022 – Part 1” is written as a partial completion of the subject Content Analysis of “Annals of Library and Information Studies (2002-2022)” registered for DLit or Post PhD Degree. It published four issues per Year it means quarterly publication. The data were downloaded from Journals website NIScPR. The content analysis has been conducted with 613 contributions published in the Journal selected 21 years for a period of between 2002 to 20022. The study focuses on necessary content analysis forms, Chronological Distribution of Articles, Authorship pattern, Research Publication Growth, Geographical distribution of productivity, The average length of Paper, average numbers, and reference per articles. The study revealed that the maximum number of articles i.e. 42 were published in the year 2010. The Highest number papers contributed by India 506.

for unique institutions). The article type with largest number of authors and unique institutions, with an average of 6.6 authors and 4.4 institutions, was Theme Issue papers, followed by Special Article papers with an average of 6.0 authors and 4.5 unique institutions. Editorial pieces, such as Viewpoints, Commentaries, and Viewpoints/Counterpoints had a mean (SD) of 1.7 (0.8), 2.6 (2.0), and 1.6 (1.6) for authors and 1.3 (0.8), 2.0 (1.6), and 1 (0) for the number of unique institutions, respectively. Table 1. Number of Authors and Unique Institutions for Manuscript Categories From 2015-2019 Open in a new tab From 2015 to 2019 for all article types, the number of authors increased significantly from a mean (SD) of 3.5 (1.8) to 4.5 (2.2) ( Figure 1A ). The number of unique institutions also increased significantly from 1.7 (1.1) to 2.4 (1.8) over the same timeframe. However, in 2018, the number of authors and unique institutions decreased (compared to 2017 numbers) from 4.1 (2.6) to 3.4 (2.2) and 2.2 (2.0) to 1.7 (1.3), respectively. Figure 1. Open in a new tab Number of unique institutions and authors of American Journal of Pharmaceutical Education publications from 2015-2019. (A) The number of unique institutions and authors over time for all paper categories (mean and SD). The number of unique institutions and the number of authors increased significantly over the years analyzed ( p <.05). (B) The number of institutions and authors over time for Research papers (mean and SD). The number of unique institutions increased significantly over the years ( p <.05), but the change in the number of authors was not significant over the years analyzed. The number of Research papers published per year were 51 (2015), 70 (2016), 76 (2017), 54 (2018), and 135 (2019) ( Figure 1B ). An analysis of only Research papers did not show a statistical increase in the number of authors over the years ( p =.13), with a mean (SD) of 4.1 (1.8) in 2015 and 4.6 (2.0) in 2019. However, To investigate the number of authors and unique institutions per paper published in the American Journal of Pharmaceutical Education (AJPE) in 2015 through 2019, and to examine the number of authors and unique institutions for papers that were nominated for the Rufus A. Lyman Award in the same period. Methods. Articles published in AJPE from 2015 through 2019 were reviewed. Data collected for each article included article type, number of authors, and number of institutions. Results. Of the 811 articles published in AJPE during this period, the number of authors increased significantly from a mean (SD) of 3.5 (1.8) to 4.5 (2.2). The number of unique institutions also increased significantly from 1.7 (1.1) to 2.4 (1.8). Conclusion. There is a trend toward a greater Keywords: authorship, journals, institutions, publishing, American Journal of Pharmaceutical Education (AJPE) INTRODUCTION In the past few decades, the average number of authors per paper published in the scientific and health science disciplines has been trending upward, resulting in group authorship becoming the norm and single authorship the exception. The New England Journal of Medicine (NEJM), focused on publishing the highest-quality evidence for advancing medical sciences and improving patient care, noted that from 1975 to 1989, the mean number of authors increased from four to six and the number of papers with single authors decreased from 9% to 3%. 1 For scientific papers indexed in PubMed, the mean number of authors pre-1975 was 1.9 and from 2015-2019 was 5.9 per paper. 2 In an editorial from the Journal of the American Medical Association (JAMA ) , the median number of authors per article increased from a range of eight to 11 in 2005 to a range of 11 to 18 in 2015 for the three leading general medical journals, specifically JAMA, The Lancet , and the NEJM. 3 In pharmacy practice journals, such as the American Journal of Health-System Pharmacy, Annals of Pharmacotherapy , and Pharmacotherapy , there has been a similar trend in the number of authors per article over time, with fewer single-author papers seen in 1989, 1999, and 2009. For Lyman Award–nominated papers, the number of authors ranged from one to 12 with a mean (SD) of 4.7 (2.2), and the number of institutions associated with these authors ranged from one to eight with a mean (SD) of 2.2 (1.6). Table 1 lists the number of published papers for each article type. The article type with the largest number of published papers was Research (386), followed by IDA (107) and Commentary (94). The number of authors for manuscripts addressing scholarly research and assessment (Research, IDA, and Education/Research Brief) had approximately four authors and two institutions (average range of 4.1 to 4.4 for authors and 1.4 to 2.1 for unique institutions). The article type with largest number of authors and unique institutions, with an average of 6.6 authors and 4.4 institutions, was Theme Issue papers, followed by Special Article papers with an average of 6.0 authors and 4.5 unique institutions. Editorial pieces, such as Viewpoints, Commentaries, and Viewpoints/Counterpoints had a mean (SD) of 1.7 (0.8), 2.6 (2.0), and 1.6 (1.6) for authors and 1.3 (0.8), 2.0 (1.6), and 1 (0) for the number of unique institutions, respectively. Table 1. Number of Authors and Unique Institutions for Manuscript Categories From 2015-2019 Open in a new tab From 2015 to 2019 for all article types, the number of authors increased significantly from a mean (SD) of 3.5 (1.8) to 4.5 (2.2) ( Figure 1A ). The number of unique institutions also increased significantly from 1.7 (1.1) to 2.4 (1.8) over the same timeframe. However, in 2018, the number of authors and unique institutions decreased (compared to 2017 numbers) from 4.1 (2.6) to 3.4 (2.2) and 2.2 (2.0) to 1.7 (1.3), respectively. Figure 1. Open in a new tab Number of unique institutions and authors of American Journal of Pharmaceutical Education publications from 2015-2019.

How many authors are (too) many? A retrospective, descriptive analysis of authorship in biomedical publications | Scientometrics | Springer Nature Link # How many authors are (too) many? A retrospective, descriptive analysis of authorship in biomedical publications - Open access - Published: 25 January 2024 - Volume 129, pages 1299–1328 (2024) - Cite this article You have full access to this open access article Download PDF Save article View saved research Scientometrics Aims and scope ## Abstract Publishing in academic journals is primary to disseminate research findings, with authorship reflecting a scientist’s contribution, yielding academic recognition, and carrying significant financial implications. Author numbers per article have consistently risen in recent decades, as demonstrated in various journals and fields. This study is a comprehensive analysis of authorship trends in biomedical papers from the NCBI PubMed database between 2000 and 2020, utilizing the Entrez Direct (EDirect) E-utilities to retrieve bibliometric data from a dataset of 17,015,001 articles. For all publication types, the mean author number per publication significantly increased over the last

Number of Authors per MEDLINE/PubMed Citation Menu # Number of Authors per MEDLINE®/PubMed® Citation Go to PubMed Citations may contain personal author and/or collective (group or corporate) author names*. As illustrated by the following graph, the number of personal authors per citation has risen steadily since 1950. ##### *The data presented on this Web page were extracted from the 2023 Statistical Reports on MEDLINE®/PubMed® Baseline Data (choose the Baseline Including OLDMEDLINE Records Excel option), which include detailed statistics on all data elements in the baseline database. The baseline contains all completed records in PubMed at the end of the NLM 2022 production year, which occurred in January, after the global updating for the new year of MeSH (Medical Subject Headings). Note that very few citations from 1966-2000 contain collective author data (see #3, below). ## Personal Author Counts | Publication Dates | Total Number Records | Records with Personal Author Information | Personal Author Occurrences | Average # Personal Author Occurrence | Maximum # Personal Author Occurrence | | --- | --- | --- | --- | --- | --- | | All | 34,960,700 | 34,218,945 | 150,368,250