Related Experiment Video
Updated: Jul 2, 2026

Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases
Published on: October 24, 2019
[Eigenfactor: a recent opportunity of measuring scientific journals]
1Pécsi Tudományegyetem, Pekár Mihály Orvosi és Elettudományi Szakkönyvtár, Pécs. tunde.gracza@aok.pte.hu
Abstract:
There are various measures of a scientific journal's impact or relevance. Probably the best known measures based on citations are the impact factor published by Thomson Scientific, and the Hirsch-index created by Andras Schubert. Citations have long been an important way to evaluate the interest, visibility and impact of research, and the corresponding researchers. These ranks are very important for the researchers when deciding where to submit their manuscripts. Recently, Carl Bergstrom has suggested a new indicator called Eigenfactor. Eigenfactor ranks journals much as Google ranks websites. All sources consulted by the researcher during the research process contribute to the determination of the Eigenfactor. Is it possible that Eigenfactor will have the leading role in scientometry starting in the next century?
Related Concept Videos
The Scientific Method
The Scientific Method
The Scientific Method
Frequency-dependent Selection
Factors Affecting Activity Coefficient
The activity coefficient value for an ion is close to one when the solution has almost zero ionic strength, i.e., when the solution shows close to ideal behavior. As the ionic strength of the solution increases from 0 to 0.1 mol/L, a decrease in the...
Free Energy

