Authors

1 PhD Student, Library and Information Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

2 PhD Student, Library and Information Sciences, Ferdowsi University of Mashhad, Mashhad, Iran.

3 MSc Student, Library and Information Sciences, The University of Isfahan, Isfahan, Iran.

4 Assistant Proffesor, Library and Information Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran

Abstract

Introduction: The articles indexed in accredited citation databases essentially indicate how 
scientists share knowledge and promote sustainable development in each country. Therefore, according to citations to the papers of individuals, it could be possible to assess the rate of their acceptability in the scientific community. The main objective of this study was to review Lotka's 
law of scientific productivity and Bradford's law of scatter in scientific productions among researchers at Isfahan University of Medical Sciences (IUMS) whose articles have been cited in 
Web of Science (WOS) database during 1992-2008. 
Methods: This was an applied study using scientometric indicators. Data was collected, sorted 
and analyzed in two phases and with two tools. In the first stage, data was extracted from the 
WOS in the form of plain text and stored on a personal computer. In the second stage, using 
ISI.exe, data was identified, analyzed and entered into spreadsheets in Microsoft Excel. In this 
research, Bradford's law of scatter, collaboration rates formula and Lotka's law of scientific production were used. 
Results: The results showed that the distribution of articles by authors at IUMS followed Lotka's 
law, i.e., a few writers released a large portion of the scientific products. In addition, the distribution frequency of journals published by IUMS followed Bradford's law, i.e., a small number of 
journals published the highest number of scientific papers. Moreover, the researchers at IUMS 
collaborated most with authors from the United States, Canada and England. 
Conclusion: The results of the present study indicated that the researchers of IUMS highly collaborate in writing their papers. Generally, collaboration rate in this university was equal to 0.967 
which was relatively high. 

Keywords