China
Africa
Explore chapters and articles related to this topic
Diffusion of Nanotechnology Knowledge Using Mixed Methods
Published in Klaus D. Sattler, st Century Nanoscience – A Handbook, 2020
Next, one can use Lotka’s law to analyze the scientific publication productivity (Lotka 1926, 317–323). To calculate the statistical properties of Lotka’s law, this researcher used bibliometrix, an R-tool package, resulting in 3.10 for the Beta coefficient and with a goodness of fit equal to 0.94. Finally, a Kolmogorov–Smirnov two-sample test estimated a p-value of 0.087, which means there is not a significant difference between the observed and the theoretical Lotka distributions (see Figure 16.4). While 816 authors publish 1 article, 1 author has published 10 articles (see Table 16.4).
Global mapping of research outputs on nanoparticles with peroxidase mimetic activity from 2010–2019
Published in Inorganic and Nano-Metal Chemistry, 2023
Raphael Idowu Adeoye, Kunle Okaiyeto, Oluwafemi Omoniyi Oguntibeju
The authors’ productivity according to Lotka’s law is shown in Figure 2c, the distribution revealed that 79.4% (n = 1070), 13.4% (n = 180) and 3.3% (n = 45) of the authors published 1, 2 and 3 article(s) respectively. Only 0.6% (n = 5) and 0.1% (n = 1) of the authors published 5 and 10 articles, respectively. The broken line represents the theoretical distribution of the authors, while the unbroken line represents the observed distribution. The theoretical distribution is not significantly different from the observed distribution. The curve revealed that there were several occasional authors and very few core authors. Lotka law deals with the productivity of the authors/researchers based on the number of articles that they have written, he proved that the number of authors that publish a certain quantity of work is inversely proportional to the square of these work.[54] The great majority of the authors (79.4%) published only 1 article, while 0.5% of them published 5 articles and above. This implies that only very few authors were highly productive.
Big data and artificial intelligence in the maritime industry: a bibliometric review and future research directions
Published in Maritime Policy & Management, 2020
Ziaul Haque Munim, Mariia Dushenko, Veronica Jaramillo Jimenez, Mohammad Hassan Shakil, Marius Imset
Lotka’s Law is a bibliometric measure of authorship concentration that describes the frequency of scientific publication by authors. The central assumption is that a few authors are highly productive in any given field, while a relatively substantial number of authors produce only a single article. As per Lotka’s law, the number of authors publishing number of articles is about of those publishing only one article. Thus, a higher b value indicates a higher degree of authorship concentration and a low value indicates the absence of a dedicated group of authors in a particular scientific discipline. The general formula of Lotka’s Law is: