Athena Unbound explores the open access movement: The past history, current conflicts and controversies, and future possibilities. The author provides analysis of the debates, and explores issues such as copyright and the economics of paying for “free” knowledge.
Topics covered include the arguments in terms of disseminating scientific research, the history of intellectual property and copyright, and the development of the university and research establishment. The author “proposes a new system that would shift costs from consumers to producers and free scholarly knowledge from the paywalls and institutional barriers that keep it from much of the world.”
The 7th edition of Drain’s PeriAnesthesia Nursing, A Critical Care Approach is now available electronically via the MSK Library. This comprehensive clinical text has five distinct sections ― covering the PACU, anatomy and physiology, pharmacology, nursing care, and special considerations.
Updated content in this edition includes the latest standards, policies and issues affecting perianesthesia nursing practice such as patient safety, infection control, managed care implications, pain management, bioterrorism, new sedation and pain guidelines, new information on older patients, implications of new surgical techniques, and more bariatric implications.
In PubMed you can use Filters (sometimes referred to as Limits), located on the left hand side of the search results screen to limit your search by certain criteria. The Filters fall into several categories, such as Article Types, Article Language, etc. Some are visible on the search results screen by default, and some can be found and made visible for the future use when clicking Additional Filters button.
The Filters are efficient and handy tools for refining a search, adding desired criteria to your search terms, thus significantly increasing search precision.
However, users may not be aware of the fact that most of the Filters are, in fact, MeSH (Medical Subject Headings) terms set up as clickable Filters but functioning as MeSH terms behind the scenes. For example, if you apply a Clinical Trial Filter, your move will be translated by PubMed as adding a search term “clinical trial”[Publication Type] to your search strategy with an “AND” Boolean Operator, e.g. cancer AND “clinical trial”[Publication Type], Publication Type is a category in the MeSH tree.
Of course, if you are a proficient searcher you can type “clinical trial”[pt], instead of clicking the Filter button which just supports refining your search in an easy and visual way.
Filters are a great feature, however there is a caveat. When you apply a Filter that is a MeSH, your search will automatically be limited to Medline portion of Pubmed. Pubmed is comprised of Medline, as well as many open access articles (mostly coming from Pubmed Central) not indexed for Medline.
To efficiently search Pubmed in it’s entirety, you must construct your search strategy as a combination of MeSH and keywords. MeSH are assigned only to Medline references and there is some lag time in this process. When applying Filters that are based on MeSH to your search it will not retrieve these references only found outside of Medline, as well as some recent Medline references not yet assigned MeSH.
In other words, by using such Filters you limit your search results to Medline only (excluding some very recent references not yet assigned MeSH) instead of getting all Pubmed search results.
The Filter categories that are MeSH terms include:
Article Type (publication type)
Species
Sex
Age
These filters should be used with caution.
The non-MeSH Filters are safe to use in any search, including:
Text Availability
Associated Data
Publication Date
Article Language
In conclusion, it is possible to combine applying Filters with using appropriate search terms if you aim at limiting your search by some criteria, yet searching all of PubMed, but as this requires search proficiency it would be best to get assistance at your Library.
Athena Unbound explores the open access movement: The past history, current conflicts and controversies, and future possibilities. The author provides analysis of the debates, and explores issues such as copyright and the economics of paying for “free” knowledge.
The 7th edition of 