Maybe The little number of electronic journals come from The limitation to first/principal editions, when electronic edition coul ne secondary.
Best regards, Andrea Marchitelli Il giorno 04/ago/2012 22:10, "Stevan Harnad" <har...@ecs.soton.ac.uk> ha scritto: > Ulrichs' current correct estimate of the total number of active > peer-reviewed academic/scholarly journals is *28,094*. > > So the ball-park figure of *25K *we've been using for years > was not far from the truth. > > Many thanks to Sally Morris and Serials Solutions. > > I got a very slightly different figure -- *28,135* -- using the Ulrichs > access from > McGill University, but re-doing the sub-totals and percentages as > indicated > by Serials Solutions, I got: > > Of these *28,135* active peer reviewed journals > > *TOTAL PEER-REVIEWED:* > *28,135* > > *ISI-INDEXED:* > *9,268* (*33%*) of the *28,135 *are indexed in Thomson-Reuters-ISI's > Journal Citation reports > > *GOLD OA:* > *4,365* (*13%*) of the *28,135 *are open access journals (freely > available online) (*Gold OA*, presumably not including Hybrid Gold) > (DOAJ lists 8005 journals, but many may be either peer reviewed > or "exercise editorial quality control") > > *ISI-INDEXED GOLD OA:* > *741* (*8%*) of the *9,268* Thomson-Reuters-ISI-indexed journals > are *Gold OA* journals > > *ENDORSE GREEN OA:* > By way of comparison, according to the last estimate of journals > indexed by SHERPA/ROMEO (which does not include all the journals > indexed by Ulrichs, but does include most of the top journals indexed > by Thomson-Reuters-ISI): > > *60%* of journals recognize the author's right to provide immediate, > un-embargoed open access upon self-archiving their final drafts > in their institutional repositories. > > That means *60%* of all journal articles can be made *Green OA* > immediately (no embargo) if all institutions mandate it. > > I did come up with one anomaly, however. De-duping along the lines > recommended by Serials Solutions, the result was: > > *AVAILABLE ONLINE:* > only *3,659* (*14%*) of the *28,135 *are available online > (that strikes me as suspiciously low) > > > Stevan Harnad > > > > On 2012-08-04, at 2:45 PM, Sally Morris wrote: > > Here's a response from Serials Solutions which should clarify the matter > once and for all > > Sally > > > Sally Morris > South House, The Street, Clapham, Worthing, West Sussex, UK BN13 3UU > Tel: +44 (0)1903 871286 > Email: sa...@morris-assocs.demon.co.uk > > > ------------------------------ > *From:* Diven, Yvette [mailto:yvette.di...@serialssolutions.com] > *Sent:* 03 August 2012 22:01 > *To:* Sally Morris > *Subject:* RE: [GOAL] Update on Ulrichs estimate of total number of > active peer-reviewed journals: 55, 311 > ** ** > From Serials Solutions…**** > ** ** > Dear Colleagues,**** > ** ** > As of 3 August 2012, the number of active peer-reviewed journals listed in > Ulrichsweb is 28,094 titles. This figure represents a count of all Primary > editions (most of which are print editions, but some are also electronic) > of those titles.**** > ** ** > The figure of 55,311 active peer-reviewed journals reflects the count of > the number of all related format editions of the 28,094 active > peer-reviewed journals. (For example, one of the 28,094 active > peer-reviewed journals may have a primary print edition, an online edition, > and also a CD-ROM edition for a total of 3 format editions.)**** > ** ** > Dr. Harnad’s search results reflect the current count across all journal > format editions. It is possible to isolate (remove) the related editions > from those search results by applying the Edition Type filter from the > Search Results screen and selecting that filter’s ‘Primary’ option.**** > ** ** > We hope that this information is helpful.**** > ** ** > _______________________________________________ > GOAL mailing list > GOAL@eprints.org > http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal > > > > _______________________________________________ > GOAL mailing list > GOAL@eprints.org > http://mailman.ecs.soton.ac.uk/mailman/listinfo/goal > >
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