E.R. Prakasan Anil Sagar Anil Kumar V.L. Kalyane and Vijai Kumar by Scientific Information Resource Division Knowledge Management Group Bhabha Atomic Research Centre Trombay, Mumbai –

10/24/2015 2:08 PM2Impact of e-print archives

One of the prevalent measures to assess the quality: 10/24/2015 2:08 PM3Impact of e-print archives Number of citations

Impact Factor = Number of citations received in the calculating year to the previous two years articles ________________________________________________________ Number of articles published in the previous two years Number of citations received in the calculating year to the articles published in the calculating year ________________________________________________________ Number of articles published in the calculating year Immediacy Index = Two measures based on citations to assess the quality of journals as per Thomson Scientific (Formerly Institute for Scientific Information, Philadelphia) 10/24/2015 2:08 PM4Impact of e-print archives - Eugine Garfield

Started in 1991 The first of its kind in the world. Brainchild of Paul Ginsparg, a physicist. Covered fields Physics, mathematics, non-linear science, computer science, quantitative biology and statistics Operated and funded by Cornell University, a private not-for-profit educational institution and is also partially funded by the National Science Foundation, USA Reason for taking for the present study It is one of the highly using e-print archive service for current research, breaking scientific discoveries, and keeping up with colleagues by researchers around the world. Facts about arXiv.org (

1.Astrophysics (astro-ph) 2.Condensed Matter (cond-mat) 3.General Relativity and Quantum Cosmology (gr-qc) 4.High Energy Physics - Experiment (hep-ex) 5.High Energy Physics - Lattice (hep-lat) 6.High Energy Phyics - Phenomenology (hep-ph) 7.High Energy Physics - Theory (hep-th) 8.Mathematical Physics (math-ph) 9.Nuclear Experiment (nucl-ex) 10.Nuclear Theory (nucl-th) 11.General Physics (physics) 12.Quantum Physics (quant-ph) The physics category of arXiv.org is again categorised in to 12 sub-classes as follows:

10/24/2015 2:08 PM7Impact of e-print archives Number of submissions to the physics sub-categories of Arxiv.org from

10/24/2015 2:08 PMImpact of e-print archives8 Year-wise percentage growth of total number of submissions to arXiv.org during and citations as per Science Citation Index

10/24/2015 2:08 PMImpact of e-print archives9 Impact Factors of the Physics Classes of arXiv.org calculated for the year 2007 Current Science, high-impact factor journal of India has only an Impact Factor 0.8 as per Journal Citation Reports-2007 Nuclear Experiment (nucl-ex)0.63 High Energy Physics - Theory (hep-th)0.56 High Energy Physics - Experiment (hep-ex)0.53 High Energy Phyics - Phenomenology (hep-ph)0.45 High Energy Physics - Lattice (hep-lat)0.38 Nuclear Theory (nucl-th)0.35 General Relativity and Quantum Cosmology (gr-qc)0.24 Quantum Physics (quant-ph)0.23 Astrophysics (astro-ph)0.18 Condensed Matter (cond-mat)0.17 Mathematical Physics (math-ph)0.11 General Physics (physics)0.06

10/24/2015 2:08 PMImpact of e-print archives10 Immediacy Indices of the Physics Classes of arXiv.org calculated for the year 2007 High Energy Physics - Lattice (hep-lat)0.18 High Energy Physics - Experiment (hep-ex)0.12 General Physics (physics)0.11 General Relativity and Quantum Cosmology (gr-qc)0.10 Mathematical Physics (math-ph)0.10 High Energy Phyics - Phenomenology (hep-ph)0.08 Quantum Physics (quant-ph)0.08 Nuclear Experiment (nucl-ex)0.07 Astrophysics (astro-ph)0.06 Condensed Matter (cond-mat)0.06 High Energy Physics - Theory (hep-th)0.01 Nuclear Theory (nucl-th)0.01

10/24/2015 2:08 PM Impact of e-print archives11 CONCLUDING REMARKS. The study reveal that e-print archives have become the first choice of many researchers like journal articles for their R&D activities. E-Print archives certainly compete with journals articles in terms of usage. The impact may go up if the study could have used other citation trackers like ‘Google Scholar’, ‘Citebase’, ‘Citeseer’, and the databases like ‘Scopus’ etc.

10/24/2015 2:08 PMImpact of e-print archives12 CONCLUDING REMARKS (continued….). As a library professional we can certainly rely on e-print archives for the requirements of our clients. The present trend of using open institutional repositories is very appreciable. Ultimately both researchers and library professionals enjoy the free access of information and knowledge.

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