Maseda, Irene

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INTRODUCTION TO BIOMEDICAL DATABASES AND CITATION ANALYSISOct 18th, 2017IreneMasedaSearching for bibliographic references Analyze your topic Choose the right starting place: search engines or specificdatabases Choose the right terms to search Find out if there is the possibility to search by keywords or to use Boolean searching Try the simple and the advance search. Use the limits Have a look of the results and refine them Save or print the results Get the documentBasic skills I: Using trunctat*• Trunctation refers to using wildcard symbols such as * in search queries• Trunctation can generate a lot of hits and cover a lot of terms– univ* will capture university (but also universal, unival, universe…)• Tipps:– Check for topic- or domain-specific pre- and suffix morphemes(electro*, synthetic*, geno*, cardio*,…) and use the in conjuction withother terms– Always check for unwanted side-effects when using trunctation.  Cardi* vs. Cardio* vs. Cardia*Designing effective queriesDesigning effective queriesBasic skills II: Thinkin in boolean logic – Operators• Boolean operators (AND, OR, NOT) are at the center of advance query construction• Examples– AND example: beverage AND bottle AND beer = all three termsmust be present– OR example: crisp OR crackers OR peanuts = one term must be present– NOT example: beverage AND bottle NOT beer= beverage and bottle must be present but not beer• Tipps:– Some plattforms support proximity operators (e.g. NEAR)– If you use boolean operators make them UPPERCASEBasic skills II: Thinkin in boolean logic – Operatorsprecedence and ()• Evaluation of queries is not strictly executed from left to right, but also by operator precedence• Example “Beverages, Bottles and Beer”– beverage OR beer NOT bottle [52,112] [143,536]– beer NOT bottle OR beverage [52,112] [145,001]– beverage OR (beer NOT bottle) [52,112] [145,001]– (beverage OR beer) NOT bottle [51,130] [143,536]– bottle NOT (beverage OR beer) [30,381] [12,897]– bottle NOT beverage OR beer [52,379] [32,856]• Tipps:– Be aware of operator precedence. Most operator precedences are: SAME > NOT > AND > OR– Parentheses override operator precedence. Always keep track of open/closed of parenthesesDesigning effective queriesBasic skills II: Thinkin in boolean logic – To quote orNOT to quote• Example of transaltional research:– A: translational research [16,292]– B: translational AND research [16,292]– C: “translational research” [8,295]– D: “translation* research” [8,577]Always remember that the trunctaction symbol and theoperators precedence may be diferent from one database to anotherDesigning effective queries“Quotation Marks” → Find the exact sentence- Dashes → Exclude a term from you search~ Tilde → Find for synonymssite: → Search in a specific website only| vertical bar →Will search sites that have one/two/all the terms.. Two periods →When you want to search within two numbersrangesIf you start in Google…If you use Google to start the search, use it right!You can also use the Advance Search…If you start in Google…PubmedPubMed is a free database accessing the MEDLINE database ofcitations, abstracts and some full text articles on life sciences andbiomedical topics. Is maintained by the United States NationalLibrary of Medicine (NLM) at the National Institutes of Health(NIH).In addition to MEDLINE, PubMed also offers access to:• OLDMEDLINE for pre-1966 citations. This has recently beenenhanced, and records for 1951.• PREMEDLINE: In-process citations which provide a recordfor an article before it is indexed with MeSH and added toMEDLINE and citations that precede the date that a journalwas selected for MEDLINE indexing (when suppliedelectronically by the publisher).Pubmed: single searchPubmed: advanced searchSearch by termsSearch by termsAdvance search and HistoryIf you go the the Advance SearchBuilder you can have track of yoursearches in the HistoryYou can combine the diference searches using the “History”Advance search and HistoryUsing the limitsOnce you have your results is time to use the limits to narrow the searchUsing the limits Clinical trials published last year about arrhythmia ventricular excluding ischemia in patients over 45.A record in detailMy NCBIMy NCBIMy NCBIWhy should I have a MyNCBI profile.• Save searches and receive alerts when new there are new publications about mytopic• Keep track of my recentactivity (History)• Create a bibliographywith my publications• Have diferent collectionsof publications• Create and managefilters to help me withthe searchesMy NCBIMy NCBIIf the document is not accesible…Web of ScienceWeb of Science is an online subscription-based scientific citation indexing service originally produced by the Institute for Scientific Information (ISI), now maintained by Clarivate Analytics, that provides a comprehensive citation search. It provides bibliographic content and tools to access, analyze, and manage research information. Multiple databases can be searched simultaneously. It’s accessible through the Fundación Española para la Ciencia y la Tecnología (FECYT)https://www.recursoscientificos.fecyt.es/Web of ScienceWeb of ScienceWeb of ScienceJournal Citation ReportsWith the JCR we can check the impac factor.The impact factor (IF) of an academic journal is a measure reflecting theaverage number of citations to recent articles published in the journal. It isfrequently used as a proxy for the relative importance of a journal within itsfield, with journals with higher impact factors deemed to be more importantthan those with lower ones.It’s useful for:• Measuring the journal's prestige in its scientific community• Defining which are the most influential journals and decide where topublish• Defining in which journals are the widely-read articlesIF = Received citations in the last year to articles published in the last two yearsNumber of citable items published by the journal in the last two yearsScientific profilesBetter have fewer, regulary updated profiles than many outdated profilesDirectory of researchers that offers a unique IDParticipant bodies are:• Universities• Administration and funding entities• Editorials• Scientific SocietiesIt aims to facilitate data exchange between the different agents involved in the scientific policy and evaluation processScientific profilesDirectory of researchers that offers a unique ID, together with a public list of their publications and their personal metrics according to Web of Science data.The identifier allows you to search the WoS avoiding homonyms.Scientific profiles• Very easy to manage• Automatic update of publications• It allows tracking of publications and citations Scientific profilesPresence on the InternetDigital identitySome final tips An easy way to keep track of our publications is by means of abibliographic references manager. By having a Researcher ID weobtain an Endnote Web account. Spread your research results using social media but… Keep aneye on the copyright! Show your scientific profiles and your research to the society:Personal webpage Always keep your profiles up-to-date with your new publications Link your different profiles Add all your account IDs (ORCID, ResearcherID, etc.) to youremail signature, social media, web page and also wherever youare sending your publications or applying for funds.IF YOU HAVE ANY DOUBTS YOU CAN CONTACT TO:Ext.1330imaseda@cnic.esDespacho hall 1ª plantaIrene MasedaThank you for your attention!!

Introduction to Biomedical Databases and Citation Analysis

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Introduction to Biomedical Databases and Citation Analysis

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