Authorship pattern and applicability of Lotka’s law in heart transplantation research: A bibliometric review using R-tool

Authors

  • Lakshminarasimhappa M C Research Scholar, Department of Library and Information Science, Bangalore University, Bengaluru Author https://orcid.org/0000-0003-4405-8258
  • Dr. T D Kemparaju Former Professor, Department of Library and Information Science, Bangalore University, Bengaluru Author
  • Dr. Ramesha Senior Professor, Department of Library and Information Science, Director, Printing Press and Publications Division of Bangalore University, Bengaluru Author https://orcid.org/0000-0001-5124-7706

DOI:

https://doi.org/10.34256/

Keywords:

Heart Transplantation, Bibliometric Analysis, Authorship Pattern, Lotka’s Law, K-S test, Bibliometrix R-tool

Abstract

The study aimed to analyse author productivity, authorship trends, and the applicability of Lotka's law in heart transplantation research from 1994 to 2023, and to propose guidance for future research. A total of 49791 publications on heart transplantation retrieved by the Scopus database were used for the study. This paper uses Bibliometrix and Biblioshiny to analyse and report relevant data. Based on the bibliometric analysis, we identified descriptive statistics for the overall dataset, the most prolific authors with high dominance, metrics for highly influential authors, and the distribution of authorship patterns in accordance with Lotka's law. The study outcomes reveal that the 'n' (-2.22137), constant 'C' (0.00169), and CV (0.0480552) play an important role in the predictive value of Lotka's law estimation. The value of Dmax (0.6398) is computed from the cumulative frequency of observed and expected authors, and the Chi-square (X2=1259.019) value is also included to strengthen Lotka's law. Among the 114945 authors, the distribution of authorship is as follows: 64.376% of authors published one article; 14.530% of authors published two; 6.431% of authors published three; and 10.814% of authors published up to ten articles. However, the proportions should be 60.793%, 15.198%, 6.755%, and 11.471%, respectively, as per Lotka's law for the current dataset. The study attempts to validate the authorship patterns in heart transplantation research using the Kolmogorov-Smirnov (K-S) and Chi-square tests. It found that the goodness-of-fit tests rejected the null hypothesis; hence, the inverse-square of Lotka did not fit the heart transplantation dataset.   

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Author Biographies

  • Lakshminarasimhappa M C, Research Scholar, Department of Library and Information Science, Bangalore University, Bengaluru

    Mr. MC Lakshminarasimhappa is pursuing a PhD in the Department of Library and Information Science, Bangalore University, Bengaluru, India and working as an Assistant Librarian in the University College of Education, Bengaluru North University, Kolar. He was a Documentation Assistant, Documentation Consultant in the CLIx Project, collaborated by MIT London & Tata Institute of Social Science. He holds an MLISc degree from Bangalore University, Bengaluru (2010-12), PGDLAN from University of Hyderabad, Telangana (2015), and PGDLIM from Tata Institute of Social Sciences, Mumbai (2017). He also obtained KSET (2013) and UGCNET (2015, June 2019, December 2019). Lakshminarasimhappa has attended several workshops, seminars, conferences and presented papers.  His areas of interest are Digital Libraries, Library Automation, User Studies, Scientometric and Bibliometric. He has published over 10 research papers in various disciplines.

  • Dr. T D Kemparaju, Former Professor, Department of Library and Information Science, Bangalore University, Bengaluru

    Dr T D Kemparaju is an eminent LIS Professional, and he holds key administrative positions in the various universities of Karnataka State. He is an active member of the Karnataka State Higher Education Council, Karnataka. He served as a Professor and Chairman in the Department of Library and Information Science, Bangalore University, Bengaluru, for 12 years. He has over 3 decades of teaching and research experience in LIS. Prof. T D Kemparaju was the first Vice-Chancellor of Bengaluru North University, Kolar.   He has held several administrative and statutory positions, such as Registrar, Bangalore University and Mangalore University; Director, Directorate of Correspondence & Distance Education, Bangalore University; Director,  Planning, Monitoring Evaluation Board (PMEB), Bangalore University; Chairman of various Statutory bodies, and Board of Studies and Examinations. He has been recognised with several awards for his contribution, such as the IATLIS Motwale National Best Teacher Award in 2000; Dr Harishchandra-Sushila Chandra Best Librarian Award in 2006 by SALIS; Karnataka State Best Librarian Award by the Government of Karnataka; PSG Kumar Life Time Award in 2005 by ILA, etc.

  • Dr. Ramesha, Senior Professor, Department of Library and Information Science, Director, Printing Press and Publications Division of Bangalore University, Bengaluru

    Dr Ramesha is a Senior Professor in the Department of Library and Information Science, Bangalore University, Bangalore. He was elected as the President of the Indian Association of Teachers of Library and Information Science (IATLIS) for the years 2023 to 2026. He was awarded the ILA – A.G. Motiwale Award for Young LIS Professionals and the ILA – Dr C.D. Sharma Best Paper Award by the Indian Library Association (ILA). Dr Ramesh is one of the winners of the IFLA World Library and Information Science Congress participating grant under the first-time attendees of the IFLA conference from developing countries, and he was invited to participate and present a paper during the 81st IFLA World Library Congress held at Cape Town, South Africa. He is a member of the State Library Authority (SLA), the Dept of Public Libraries; a member of the State Level Book Selection Committee, Govt. Of Karnataka for the year 2023-2024; and members of the State Level Subject Expert Committee in Library and Information Science under NEP-2020. Chairman of various Statutory bodies, and Board of Studies and Examinations. He successfully guided 11 PhD candidates, and 6 candidates are pursuing their PhD. He has published more than 150 research papers both in National and International Journals and Conference Proceedings and participated in more than 60 National and International Conferences, Seminars, and workshops. He is a life member of many professional associations, including ILA, IASLIC, IATLIS, SALIS, MALA, TLA, KALA, etc.

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Published

2026-04-24

Issue

Vol. 62 No. 01 (2026)

Section

Articles

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How to Cite

Authorship pattern and applicability of Lotka’s law in heart transplantation research: A bibliometric review using R-tool (MC Lakshminarasimhappa, T D Kemparaju, & Ramesha , Trans.). (2026). Journal of Indian Library Association, 62(01), 107-126. https://doi.org/10.34256/