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HINARI/E-Resources and Internet Searching (module 1.2). MODULE 1.2 E-Resources and Internet Searching. Instructions - This part of the: course is a PowerPoint demonstration intended to introduce you to E-Resources and Internet Searching.

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Module 1 2 e resources and internet searching
MODULE 1.2 E-Resources and Internet Searching

Instructions - This part of the:

  • course is a PowerPoint demonstration intended to introduce you to E-Resources and Internet Searching.

  • module is off-line and is intended as an information resource for reference use.


Table of contents
Table of Contents

  • Types of Information

  • Sources of Information

  • Internet Search Tools

  • Internet Gateways & Databases

  • Internet Search Engines

  • Searching techniques and strategies

  • Boolean searching

  • Advanced searching


Why use e resources
Why Use E-Resources?

  • An up-to-date resource

  • Convenience

  • Extra features—e.g. search facilities, links to other databases, supplementary information

  • Access to a wider range of material than might otherwise be available within the local medical library


Electronic library resources
Electronic Library Resources

  • Any library or information resources that can be accessed electronically, e.g.

    • electronic journals

    • scholarly databases

    • electronic books

    • hybrid digital collections

    • Internetgateways and search engines

  • Free or fee-based access


Types of electronic information
Types of Electronic Information

  • Library Catalogues

  • Multimedia

  • Reference Tools

  • Journals

  • Bulletins, Newspapers & Magazines

  • Reports and Grey Literature

  • Databases


Sources of e resources
Sources of E-Resources

  • Academic

    • Refereed journals

    • Review journals

    • Pre-prints

    • Bulletins and Reports

  • Non-academic

    • Professional/trade journals

    • Magazines

    • Newspapers

    • Bulletins and Reports


Electronic journal formats
Electronic Journal Formats

  • Full-text/whole journal available

    • Electronic version of print

    • Electronic only

  • Partial full-text/selected articles only

  • Table of contents/citations/abstracts only

  • Citations only

    Source of the previous four slides is the INASP Training materials on Electronic Library Resources http://www.inasp.info/training/ejournals/:


Sources of health information
Sources of Health Information

  • Academic Institutions

    • London School of Hygiene and Tropical Medicine

      http://www.lshtml.ac.uk

    • Johns Hopkins University

      http://www.jhu.edu

  • Government Agencies & NGOs

    • Centers for Disease Control and Prevention

      http://www.cdc.gov

    • Medecins Sans Frontieres

      http://www.msf.org


Sources of information
Sources of Information

  • Publishers and Commercial Databases

    • Elsevier Science: Science Direct

      http://www.sciencedirect.com

  • Non Profit/Professional Organizations

    • British Medical Association

      http://www.bma.org.uk

  • International Agencies

    • World Health Organization

      http://www.who.int/tdr/

    • Pan American Health Organization

      http://www.paho.org/

  • Non-governmental Agencies

    • Family Health International

    • Development Gateway


Internet search tools
Internet Search tools

  • Which search tools are needed?

    • Gateways

    • Databases

    • Search Engines


Gateway
Gateway

  • A node or network that serves as an entrance to another network, gateways organize information in a structured way in general or subject categories

    • Yahoo http://www.yahoo.com

    • WHO A-Z health topics list http://www.who.int/topics/en/

    • Essential Health Links

      http://www.healthnet.org/essential-links/

    • HINARI/AGORA/OARE


Database
Database

  • A collection of information organized in such a way that a computer

    • the program can quickly select desired pieces of data

    • an electronic filing system

    • traditional databases are organized by fields, records and files

    • example: PubMed - a free search tool to over 16 million citationshttp://www.ncbi.nlm.nih.gov/entrez/


Search engine
Search Engine

  • A program that searches documents for specified keywords and returns a list of documents where the keywords were found

  • On the WWW, utilizes automated robotics to gather and index information

  • Search options

    • Google http://www.google.com

    • Google Scholar (more focused) http://www.scholar.google.com

    • Yahoo http://www.yahoo.com/


The google search engine
The Google search engine

This is the Google search engine. Type your query into the Google Search box and click on the Google Search button


Search results on google
Search results on Google

This is how Google presents the results of your search. Follow the links to the websites you wish to visit.


Web search techniques
Web Search Techniques

  • Searching

    • Overview (define, choose, decide, review/revise)

  • Types of Searches

    • Browsing

    • Keyword Searching

    • Controlled Vocabulary Searching (MeSH)


Searching strategy overview
Searching Strategy Overview

Define your information need

  • What sort of information are you looking for?

    • Is it for specific information? - from a data book, encyclopaedia, dictionary or textbook

    • Is it general information within a subject area?

    • Does the search require more thought and information?

  • Who is going to use the information?

    • Is it for a clinician, researcher, student or a member of the public?


Choose your search terms
Choose your search terms

  • What are the key phrases and/or unique words that might appear in a website or article?

  • Are there synonyms, alternate spellings, plurals or capitals that should be considered?

  • What broader topic is the search part of or related to?


Decide which sources to use
Decide which sources to use

  • What sources are appropriate? This can range from organizations’ websites and news articles to subject gateways and databases, journals, reference resources, e-books or reports and grey literature.


Review and revise your search
Review and revise your search

  • Be prepared to review and revise your search scope and strategy – by using other sources of information or other search terms or different combinations of terms or by using a different type of search

  • Try new sources of information (familiarity is sometimes too easy)

  • Start again near the beginning of this process if you need to

    See the INASP “Introduction to Using the Internet” workshop http://www.inasp.info/training/internet/


Search operators
Search Operators

  • Allow you to focus your search by linking search terms and defining the relationship between them.

  • Some operators take precedence over others when searching a database.

  • Not functional when they are at the beginning or end of a search expression.


Boolean operators
Boolean Operators

  • Connect terms and locate records containing matching terms in one of the specified field, both of the specified fields, or all of the specified fields.

  • Inserted in a user fill-in template or search box.

  • Must be in UPPERCASE when used.

  • AND, NOT operators are processed in a left- to right sequence. These are processed first before the OR operators.

  • OR operators are also processed from left to right.


Full boolean searching
Full Boolean Searching

  • Use Logic Operators

    • AND

    • OR

    • NOT


And operator to combine two concepts and narrow a search
AND Operator (to combine two concepts and narrow a search)

the AND operator is used to combine two concepts e.g. hip AND fracture – in the shaded area; retrieves items containing all the search terms




And operator to combine three concepts
AND Operator (to combine three concepts)

the AND operator is used to combine three concepts e.g. hip AND fracture AND elderly – in the shaded area.



Or operator info containing one or other term will broaden a search
OR Operator (info containing one or other term; will broaden a search)

renal OR kidney – in the shaded area with the overlap in the middle having both search terms; retrieves items containing either search term or both search terms



Not operator in one term or the other will narrow a search
NOT Operator (in one term or the other - will narrow a search)

pig NOT guinea – in the shaded area; eliminates items in 2nd term (guinea) or both terms


Nesting search terms
Nesting Search Terms

  • Enclosing the search terms in parentheses can change the sequence in which the AND and OR operators are processed in a search.

  • The terms inside the parentheses are processed first; i.e. operators inside parentheses have priority over, or operate before, operators used outside parentheses.


Africa and malaria or tuberculosis
Africa AND (malaria OR tuberculosis)

malaria

tuberculosis

africa

Africa AND (malaria or tuberculosis) – in the shaded area

The (OR) operator retains items in each term and the AND operator is used to combine two concepts


Phrase searching
Phrase Searching

  • Some databases allow searching of a phrase by enclosing it in single ordouble quotes (PubMed uses double quotes).

  • Example for PubMed:

    “health promotion”


Advanced searching techniques tips
Advanced Searching Techniques - Tips

  • Truncation or Wild Cards

    • * or $ is inserted to find all alternative endings of a word

      • child* for child OR childs OR children

      • staph$ will search for information on staphylococcus OR staphylococcal OR staphylococci

    • ? can be used to substitute for characters anywhere in a word for alternate spellings

      • wom?n would search for “woman” and “women”

        Proximity Searching

    • NEXTorNEARor parentheses e.g. (malaria parasite)


More search techniques
More Search Techniques

  • Field Specific Searching

    • Title

    • Date

    • URL

  • Language Restrictions and other limits

    (to be discussed in the PubMed searching modules)

  • Relevancy Ranking

    • a grading that gives extra weight to a document when the search terms appear in the headline or are capitalized

    • every found document is calculated as 100% multiply by the angle formed by weights vector for request and weights vector for document found




This is the end of module 1
This is the end of Module 1

This is the end of Module 1.2

There is a Work Book to accompany this part of the module. The workbook will take you through a live session covering the topics included in this demonstration with working examples.

Updated 09 2007


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