introduction: in the current study, we compared h5-index provided by google scholar (gs), impact factor (if) provided by web of sciences (wos), and scimago journal rank indicator (sjr) provided by scopus for quality assessment of nuclear medicine journals. methods: 2013 h5-index, 2012 if, and 2011 sjr of nuclear medicine journals were extracted from their publishers namely gs, wos, and scopus....

In this paper we show that the measure of diffusion introduced by Ian Rowlands called the Journal Diffusion Factor (JDF) is highly negatively correlated with the number of citations, leading highly cited journals to get a low JDF, whereas less cited journals gets a high JDF. This property reduces the utility of the JDF as a tool for evaluation of research influence. We present a new definition ...

objective(s): citation tracking is an important method to analyze the scientific impact of journal articles and can be done through scopus (sc), google scholar (gs), or isi web of knowledge (wos). in the current study, we analyzed the citations to 2011-2012 articles of iranian journal of basic medical sciences (ijbms) in these three resources.   material and methods: the relevant data from sc, ...

this study investigates correlation between journal self – citation and impact factor in agriculture and veterinary subject category through the scientific journals indexed in isc's pjcr during 2001 to 2007. citation analysis is used to conduct the research. the results indicate a significant correlation between impact factor and journal self – citation (r=0.425, sig= 0.000); that is, journals ...

On the advice of Research Committee, NHMRC will no longer request Journal Impact Factors (JIF) as part of any applications for funding nor use these in peer review of individual applications. Journal Impact Factor is not a sound basis upon which to judge the impact of individual papers. The JIF of any journal does not describe the impact, importance or quality of any individual paper. Instead, ...

The scientific foundation for the criticism on the use of the Journal Impact Factor (JIF) in evaluations of individual researchers and their publications was laid between 1989 and 1997 in a series of articles by Per O. Seglen. His basic work has since influenced initiatives such as the San Francisco Declaration on Research Assessment (DORA), the Leiden Manifesto for research metrics, and The Me...

The San Francisco Declaration on Research Assessment (DORA) was penned 5 years ago to articulate best practices for how we communicate and judge our scientific contributions. In particular, it adamantly declared that Journal Impact Factor (JIF) should never be used as a surrogate measure of the quality of individual research contributions, or for hiring, promotion, or funding decisions. Since t...

This paper investigates the mechanism of the Journal Impact Factor (JIF). Although created as a journal selection tool the indicator is probably the central quantitative indicator for measuring journal quality. The focus is journal self-citations as the treatment of these in analyses and evaluations is highly disputed. The role of self-citations (both self-citing rate and self-cited rate) is in...

The journal impact factor (IF), which is published annually by the Institute for Scientific Information, (Philadelphia, USA), is meanwhile in widespread use as a scientometric parameter for the evaluation of research and researchers in Germany and other European countries. The present article subjects the IF to critical analysis. It first deals with processes of production, transfer, and use of...

72 1024x768 normal 0 false false false en-us x-none ar-sa background : by providing a picture from published articles in a field, bibliometric studies can inform policy-makers in their challenging research funding decisions. in this regard, we applied bibliometric analysis to the iranian pediatrics articles published in pubmed indexed journals between 1975 and 2007. methods : we evaluated all p...