Lotka's Law of Scientific Productivity and Bradford's Law of Scatter among Researchers at Isfahan University of Medical Sciences based on Web of Science Database

• 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.• 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.• 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.• 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.