Hi ,
I've been inspired to do some research, too, and this is what I found: 274 results on a search completed on 29/01/2013, but only 260 results when I carried it out today. This did include de-duplicating across five databses, so the de-duplicating process may have been updated and made more efficient, possibly. But it still seems a bit odd, and I'm not entirely convinced!
Stephen
Stephen Phillips
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From: UK medical/ health care library community / information workers [[log in to unmask]] On Behalf Of Sally Dalton [[log in to unmask]]
Sent: 22 May 2013 15:05
To: [log in to unmask]
Subject: update search problem - please help!
Hi there,
I am hoping someone might be able to help me with this update search problem. I need to find all the papers that have been added to Medline (which match my search) since I last ran my search. Here is the process I went through to try and do that:
1. I ran a search in Medline on the 29th January 2013 and found 12047 papers.
2. I re-ran the search today and found 12547 papers (step 33)
3. So there are 500 extra papers that have been found.
4. I searched for all papers added to the database since the 29th January using the entry date field (step 34)
5. I expected to find 500 papers
6. I actually only found 245 (step 35)
7. Where are the other 255?!
Here is the last few steps of my search:
32
limit 31 to english language
13991
33
limit 32 to yr="1990 -Current"
12547
34
("20130128" or "20130129" or "20130130" or "20130131" or "20130201" or "20130202" or "20130203" or "20130204" or "20130205" or "20130206" or "20130207" or "20130208" or "20130209" or "20130210" or "20130211" or "20130212" or "20130213" or "20130214" or "20130215" or "20130216" or "20130217" or "20130218" or "20130219" or "20130220" or "20130221" or "20130222" or "20130223" or "20130224" or "20130225" or "20130226" or "20130227" or "20130228" or "20130301" or "20130302" or "20130303" or "20130304" or "20130305" or "20130306" or "20130307" or "20130308" or "20130309" or "20130310" or "20130311" or "20130312" or "20130313" or "20130314" or "20130315" or "20130316" or "20130317" or "20130318" or "20130319" or "20130320" or "20130321" or "20130322" or "20130323" or "20130324" or "20130325" or "20130326" or "20130327" or "20130328" or "20130329" or "20130330" or "20130331" or "20130401" or "20130402" or "20130403" or "20130404" or "20130405" or "20130406" or "20130407" or "20130408" or "20130409" or "20130410" or "20130411" or "20130412" or "20130413" or "20130414" or "20130415" or "20130416" or "20130417" or "20130418" or "20130419" or "20130420" or "20130421" or "20130422" or "20130423" or "20130424" or "20130425" or "20130426" or "20130427" or "20130428" or "20130429" or "20130430" or "20130501" or "20130502" or "20130503" or "20130504" or "20130505" or "20130506" or "20130507" or "20130508" or "20130509" or "20130510" or "20130511" or "20130512" or "20130513" or "20130514" or "20130515" or "20130516" or "20130517" or "20130518" or "20130519" or "20130520" or "20130521" or "20130522").ed.
228599
35
33 and 34
245
I have played around with using the ‘revision date’ field and the ‘update date’ field but that doesn’t find all 500 either. I am sure I am missing something obvious so apologies if I am but any help would be much appreciated!
Many thanks in advance.
Sally
Sally Dalton BA Hons, MSc
Faculty Team Librarian (Dentistry and Psychology)
Health Sciences Library
Level 7
Worsley Building
University of Leeds
LS2 9JT
0113 34 36974
[log in to unmask]<mailto:[log in to unmask]>
Twitter: @lulhealthteam<https://twitter.com/LULHealthTeam>
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