Journals play a vital role in the communication of medical knowledge but little is known about their relative influence and how this may change over time. Citation analysis is one method which allows an objective assessment of scientific research. It has been used as a measure of research achievement by which national and individual academic performance can be judged (Smith et al. 1986; Evered ...

introduction: the internet and other digital sources of information are widely used tools for research. citations allow readers to locate and further explore sources you consulted, show the depth and scope of your research and give credit to authors for their ideas. in this study, documenting electronic sources in journals of medical sciences universities in 1378-81 was investigated.’ methods: ...

This paper aims at quantifying the economic value of knowledge spillovers by exploring information contained in patent citations. We estimate a market valuation equation for semiconductor firms during the 1980s and 1990s, and find an average value in the amount of $0.6 to 1.2 million “R&D-equivalent” dollars for knowledge spillovers embodied in one patent citation. For an average semiconductor ...

In this paper, we examine the evolution of the impact of non-elite journals. We attempt to answer two questions. First, what fraction of the top-cited articles are published in non-elite journals and how has this changed over time. Second, what fraction of the total citations are to non-elite journals and how has this changed over time. To answer these questions, we studied citations to article...

The aim of this study was to use journal metrics to confirm that the Journal of Exercise Rehabilitation has been promoted to the international level after changing its language to English-only in April 2013. Journal metrics, including the number of articles per year, countries of authors, countries of the editorial board members, impact factor, total citations, and the Hirsch index, were counte...

OBJECTIVE several studies have examined the academic production of the researchers at the CNPq, in several areas of knowledge. The aim of this study was to evaluate the scientific production of researchers in Hematology/Oncology who hold scientific productivity grants from the Brazilian Council for Scientific and Technological Development. METHODS the Academic CVs of 28 researchers in Hematol...

PURPOSE The aim was to verify if changing the Journal of Gastric Cancer (JGC) to only English (starting in December 2010) was successful based on bibliometrics. MATERIALS AND METHODS The following indicators were retrieved or calculated from the journal homepage and the Web of Science Core Collection on January 30, 2016: the number of citable articles per year; the number of original articles...

This paper aims at quantifying the economic value of knowledge spillovers by exploring information contained in patent citations. We estimate a market valuation equation for semiconductor firms during the 1980s and 1990s, and find an average value in the amount of $0.6 to 1.2 million “R&D-equivalent” dollars for the knowledge spillovers as embodied in one patent citation. For an average semicon...