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Introduction. Internet Concepts and Scientific Literature Resources. MODULE 1 Internet Concepts. Instructions This part of the course is a PowerPoint demonstration intended to introduce you to Internet concepts. - PowerPoint PPT Presentation
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Introduction
Internet Concepts
and
Scientific Literature Resources
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Instructions
This part of the course is a PowerPoint demonstration intended to introduce you to Internet concepts.
This part of the module is off-line and intended as an information resource for reference use.
This part of the module should be taken before using the live tutorial.
MODULE 1 Internet Concepts
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Topics
– Basic Internet Concepts– History of the Internet– Structure of the Internet– Types of Information – Evaluation of Information– Search Tools & Techniques– Researching Health/Biomedical Information– Managing Internet Resources– Summary
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Basic Internet Terminology
• What is the Internet?– Network of Computer Networks– Telecommunications– Protocols– Uses
• Information Networks– Libraries– Research Centers
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Internet Protocols & Uses
• TCP/IP
• FTP
• HTML
• HTTP
• TELNET
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Network of Information Networks
• Library Networks– Local - A university, hospital, or research institute– Regional – A group of universities– National - A country wide network– International –
• The WHO Library http://www.who.int/library/• Hellis – http://www.hellis.org (Network of Health
Science Libraries Across Asia)
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Here is the homepage of the WHO Library.
WHO Library Website
http://www.who.int/library/
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The Internet Address or URL
This page is being viewed in the Internet Explorer Browser. Browsers allow computers to read Hyper Text Mark-up Language OR HTML
The Address or URL is typed in here.
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Entering a URL address in the address box
After Entering a URL address in the address box click ok “go” or hit the RETURN key. In this example we have entered http://www.who.int for the WHO website
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Hypertext links
Links to other pages are usually underlined or in another colour of text.
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Forward and back navigation buttons
The arrow buttons on the tool bar allow users to move back and forward to pages within the website.
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Home page button
The house icon on the tool bar will take you back to the browser’s default Home Page.
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Types of Information
• Library Catalogues• Multimedia• Reference Tools• Journals, Newspapers & Magazines• Databases
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Sources of Information
• Academic Institutions
• Government Agencies
• Publishers– Commercial - Proprietary Databases– Non Profit
• Professional organizations-• International Agencies- http://www.who.int/tdr/
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Internet Search tools
• Which search tools are needed?– Directories– Search Engines– Meta Search Engines– Invisible or Deep Web
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Directories
• What is a Directory?– A file used to organize internet resources
into categories.– Types of Directories
• General-– Cover many subjects
• http://www.yahoo.com• Subject Directories.
– Cover specific subjects
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Search Engines
• Search Engines– What are search engines?– Components of a search engine– Search Options
• Search Box : Google- http://www.google.com• Natural Language : http://sp.ask.com/docs/help/
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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
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Search results on Google
This is how Google presents the results of your search. Follow the links to the websites you wish to visit.
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Meta Search Engines
• What is a Meta Search Engine?
• Examples– Dogpile
• http://www.dogpile.com/
– Metacrawler • http://www.metacrawler.com/index.html
– OAIster - http://www.oaister.org/
• Why Use Meta Search Engines?
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Why Use Meta Search Engines• Meta Search Engines search multiple sets of
individual search engines and web directories simultaneously.
• They provide a quick way for finding out which search engines are retrieving the best results for a search.
• They usually return a list drawn from the top of search engine lists, the results tend to be more relevant.
• Use a meta Search Engine for:– Locating information quickly on a simple topic– Locate a persons’s
• Sample: Search- MetaCrawler for information about DR.Kitua
• Search for TDR on Metacrawler.
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Invisible Web or Deep Web
• What is the Invisible Web?– http://library.rider.edu/scholarly/rlackie/Invis
ible/Inv_Web.html– http://www.lib.berkeley.edu/TeachingLib/G
uides/Internet/InvisibleWeb.html
• Invisible Web Directories– http://www.invisible-web.net/– http://infomine.ucr.edu/
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Web Search Techniques
• Searching– Which Tools?
• Types of Searches– Browsing– Keyword Searching– Full Text Searching
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Boolean Searching
• Full Boolean Searching
• Predetermined language in a user fill-in template.
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Full Boolean Searching
• Use Logic Operators– AND– OR– NOT
• Relevancy Ranking
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AND Operator
• Query- Information on Malaria AND Parasite
Malaria Parasite
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OR Operator
• Query- Malaria OR Parasite
Malaria Parasite
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NOT Operator
• Parasite NOT Malaria
ParasiteMalaria
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Advanced Searching Techniques -Tips
• Truncation
• Proximity Searching– Phrase searching– Near operator.
• Case sensitivity
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More Search Techniques
• Field Specific Searching– Title– Date– URL
• Language Restrictions
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Evaluating Web Information
• Criteria for Evaluation• Accuracy• Authority• Currency• Coverage• Objectivity
• Criteria for evaluating Health Information– http://www.nlm.nih.gov/medlineplus/evaluatinghe
althinformation.html
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Free Internet Resources
• Full-text• Ready reference material• Library Catalogues• Journals• Government Information• Research Databases• Publishers Databases• Discussion groups• News
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Sources for Full Text
• Directory of Open Access Journals - http://www.doaj.org/
• Health Internetwork – http://www.healthinternetwork.org
• Institutional Archives e.g. http://archives.eprints.org/
• BioLine International - http://www.bioline.org.br/
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Health Information on the Internet
• Directories– http://dir.yahoo.com/Health/Medicine/
Subject Directories– Health Directories
• Databases - http://omni.ac.uk/– Health
• Electronic Journals
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Databases
• Government– http://www.nlm.nih.gov/hinfo.html
• International Health Organizations– http://whqwings.who.int/RIS/RISWEB.isa
• http://www.who.int/tdr/topmenu/databases.htm
– Educational Institutions• http://highwire.stanford.edu/lists/freeart.dtl
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Searching within the NLM website
This is the National Library of Medicine (NLM) database. You can search the site from the Search Box.
http://www.nlm.nih.gov/hinfo.html
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HireWire Press free article database
This the HireWire Press free article database. Users have access to over 740,000 full text articles.
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Journals
• http://www.pubmedcentral.gov/• http://www.biomedcentral.com• http://www.freemedicaljournals.com/• http://bmj.com/• http://www.doaj.org/• http://dmoz.org/Health/Medicine/Journals/• http://www.inasp.org.uk/ajol/index.html
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FreeMedicalJournals.com
FreeMedicalJournals.com lists journals sites that make their content free to all users. Journals are listed by A-Z, speciality, and language.
http://www.freemedicaljournals.com/
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BioMed Central
BioMed Central is an open access publisher that makes access to published articles freely available to the public. The journals are funded by an author pays model.
http://www.biomedcentral.com/
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PubMed Central
PubMed Central is a free archive of articles that have been deposited in this free repository.
http://www.pubmedcentral.gov/
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Fee-Based Internet Resources
• Reference Titles
• Periodical Indexes
• Electronic Journals
• Electronic Text Books
• Online Databases
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Managing Internet Resources
• Bookmarks– What is a Bookmark?
• Netscape
• Favorites• Internet Explorer
• Offline Activity
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Adding favorites 1
To add a page to Favorites click on the link on the Tool bar.
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Adding favorites 2
You can now give your new Favorite a name.
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Adding favorites 3
When you select favorites from the tool bar you can see that your page has been added to the list.
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This is the end of Module 1
This is the end of Module 1
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.