Embed Size (px)
Citation preview
PubMed Central Update
Mark R. DesiertoMLA Conference
May 2007
What is PubMed Central?
• PubMed Central (PMC) is the U.S. National Library of Medicine's digital archive of biomedical and life sciences journal literature
• A logical extension of NLM’s general mandate
• Free and unrestricted access
• Integrate the literature with other valuable information resources in the NCBI database family (e.g., PubMed, Nucleotide, Protein)
• Digitize journal back issues to create a full electronic record of a journal
• Launched in February 2000
Can you tell me how to get to PMC?
http://www.pubmedcentral.nih.gov/
Can you tell me how to get to PMC?
Via www.pubmed.gov
Can you tell me how to get to PMC?
Banner in AbstractPlus
Can you tell me how to get to PMC?
Via PubMed filters
What’s in PMC?
MLA 2006:
250 journals
600,000 articles
7.65m article retrievals in April 2006
MLA 2007:
325 journals
960,000 articles
9.5m article retrievals in April 2007
What’s in PMC?
300,000New & recent electronic content
Author manuscripts(NIHMS, Wellcome Trust, Inserm)
+ 650,000Scanned from print(Back Issue Digitization Project)
+ 7,000
~960,000 articles
What’s in PMC?
300,000 articlesNew & recent electronic content
Publisher agrees to provide
•Full-text XML
•High-resolution (“print”) PDFs
•Original high-resolution images
•Supplementary material
XML preferred for archiving
•Technology-independent and portable
•Allows for richer linking and automated text analysis
What’s in PMC?
650,000 articlesBack Issue Digitization Project
•Print journals scanned “cover to cover” (from earliest volume)
•Create and archive high resolution PDFs with true reproduction of figures/images
•OCR text used to do full-text searching and build list of linked reference citations
What’s in PMC?
•Formal agreement between NLM and publisher
•Journal may delay free access up to a year or more
•Copyright is retained by publisher or author
•Publisher may designate journal (or certain articles) as open access
•Deposits are permanent: journal may stop depositing new content but may not withdraw content already deposited in PMC
To Join PMC . . .
Joined PMC in 2006/07
Completed Back Scanning Archive in 2006/07
•Earliest volume: 1885
•Earliest volume: 1912
•Earliest volume: 1878
OA Titles Joining PMC 2006/07
Open Access “Feeds”
"Blackwell Online Open"[JOUR]Blackwell Online Open
"Springer Open Choice Articles"[JOUR]Springer OpenChoice Articles
Oxford University Press “OxfordOpen”
Coming soon
Finding NCBI Related Records
Tables and Images in Context
Image Viewer
Image Color AccuracyPrint
Old
New
PMC Help on Bookshelf
Part of NCBI Help Manual
PMC News RSS Feed
http://www.ncbi.nlm.nih.gov/feed/rss.cgi?ChanKey=pmcnews
UK PubMed Central (UKPMC)
http://ukpmc.ac.uk/
UK PubMed Central (UKPMC)
•Flagship PMC International (PMCI) site
•Also working with publishers and organizations in Italy (Italian National Research Council), South Africa (National Bioinformatics Network), China, and Japan.
Coming soon: Improved Limits
Coming soon: Projected for Back Scanning
Completion in 2007
