190 likes | 208 Vues
Explore the influence of scholarly journals on practitioners, debunking myths and revealing insights on reading trends, internet domains, PubMed searches, costs, and implications for libraries. Understand the dynamics of journal literature growth and the transition from print to electronic formats.
E N D
The Use and Value of Scientific Journals: Impact on Practitioners Carol Tenopir ctenopir@utk.edu University of Tennessee
Growth of Internet Domains Source: Internet Software Consortium Domain Survey available at <http://www.isc.org/ds/hosts.html>
Myths • Scholarly journals are not read • There are too many journals • Journals are only for authors • Scientists know information before it appears in a journal • Electronic journals will completely replace print
Facts Behind the Myths • Growth of journal literature is correlated with the number of scientists • 1 article per 10 scientists • 70% of all readings are done by non-academicians
Growth of... Scholarly Journals Internet Domains
PubMed • A month worth of searches in PubMed equaled a year of MEDLINE searches (about 7.6 million) • Today, the number of PubMed searches ranges from 500,000 to over one million per day
arXiv.org • Connections to LANL’s arXiv.org reached 180,000 per day in February 2001 • Each article gets an average of 300 downloads per year
Andrew Odlyzko’s 1995 article “Tragic Loss or Good Riddance?” still gets an average of 175 downloads per month.
Average Cost Per Title:Science Journals 1996-2000 7.7% 6.9% 7.1% 11.9% 9.7% 11.3% 11.0% 11.4% Source: Library Journal, April 15, 2000
Average Number of Personal Subscriptions to Scholarly Journals
Library Owning vs.Borrowing Article Copies Institutional Subscriptions Break-Even Point ILL/Document Delivery
What does this mean for libraries? • Continue to subsidize access to journals • Provide them in either print or electronic form • Think in terms of some subscriptions • Save the reader's time by providing access and links to high quality journal literature • Think in terms of economies of scale (consortia) and saving readers' time