Sujet: Web Research Guide part 5: Searching article abstracts and indexes
De: "Elsevier, Sandra de Gelder"
Date: Wed, 28 May 2003 16:37:48 +0200 (CEST)
A: jean-michel.chapuis@univ-lr.fr

Web Research Guide part 5: Searching article abstracts and indexes

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Scirus ScienceDirect SD Navigator Google

Dear MR chapuis,
While search engines are a useful way to find information on the Web, it must be remembered that they have limitations. Search engines use 'spiders' to crawl the Web, and return results from static Web pages. However, many bigger web sites use
dynamic web pages, which are created in response to a specific user query, and which cannot be found by normal search engines. These pages are known as the 'deep web' and represent an enormous resource of approximately 500 billion documents. (as estimated by the web site www.internets.com)

But if search engines canít reach these pages, how do you locate them?

Tip of the week: Use Scirus to explore the 'Deep Web'.

Scirus, the search engine for scientific information only, enables you to locate abstracts and indexes that normal search engines don't find. Scirus searches databases of many open and access controlled resources and is the only search engine that searches the database of ScienceDirect, which covers 2.35 million peer-reviewed articles.
Scirus offers a unique function, where you can split search results into web results and database results from the 'deep web'.

To search journal and database sources only, tick the 'All journal sources' box
below the search box. Journal sources are generally peer-reviewed and include:
  • Full-text articles from ScienceDirect.
  • Beilstein abstracts on Chemweb.
  • Full-text articles from BioMed Central.
  • MEDLINE citations on BioMedNet.
Try this search on Scirus:

 
All journal sources All web sources

Tip: Use ScienceDirect to find information from abstract databases.

Abstract Databases are databases dedicated toward scientific publication of material specific to a particular area of interest. They represent a valuable source of peer-reviewed, subject-specific information. The following Abstract Databases are available on ScienceDirect:

  • BIOSIS Previews - Fundamental life sciences, biological and biomedical research
  • BIOTECHNOBASE - Biotechnology
  • Beilstein Abstracts - Organic and related chemistry
  • Compendex - Engineering
  • EMBASE - Pharmacology and biomedicine
  • Elsevier BIOBASE - Basic biological sciences
  • FLUIDEX - Fluids engineering
  • GEOBASE - Geology, geography and oceanography
  • INSPEC - Physics, engineering, electronics and information technology
  • MEDLINE - Biomedicine
  • OceanBase - Marine science and technology
  • PsycINFO - Psychology and behavioural sciences
  • ScienceDirect Navigator - All scienceSearch
  • World Textiles - Industrial and textile research

For more information on the Abstract Databases available from Science Direct, and to see which databases are included in your institute subscription, see the list of Science Direct Abstract Databases
.

  List of Abstract Databases

Advanced tip: Use the SD Navigator to search across all Abstract Databases available to you on ScienceDirect.

ScienceDirect Navigator is an all-sciences bibliographic database and extremely useful to scientists searching outside a familiar scientific area and to students who prefer to search through trusted scientific sources. The database contains bibliographic information from over 7,000 leading and critically selected, peer-reviewed journals in scientific, medical, and technical fields. With the ScienceDirect Navigator database, you have the capability to search across all the Abstract Databases available to you on ScienceDirect using one search request.

To perform a search in one or more of the abstract databases, click the 'Search' button in the top navigation bar of ScienceDirect. Then click the 'Abstract Databases' tab at the top of the search form. Searches can be performed in either Basic or Advanced mode in one or more of the databases available to you. When searching the ScienceDirect Navigator database, you have the option to restrict your search request by selecting one or more subject categories. To broaden your search request and include the entire collection of abstracts, select 'All Sciences' from the 'Subjects' drop-down menu.

Useful resources

Use InvisibleWeb.com to survey the 'Invisible Web'.

The InvisibleWeb.com is a directory of over 10,000 databases, archives, and search engines that contain information that traditional search engines have
been unable to access.

Click on the link below and choose the science section to see an overview of the science topics on invisibleweb.com.

InvisibleWeb.com

Internets.com

Internets.com provides a range of useful links to the 'deep web', including news feeds, archives, libraries, research databases, catalogues, and statistical data.

For science-specific links, see the link below.

http://www.internets.com/sscience.htm

Advanced tip: Search for databases with traditional search engines.

While search engines may not be able to find the valuable information residing deep within a site, they can help you find the homepages of databases that may prove helpful for your research.

Enter "Your subject" + "database" into a search engine such as Google.

For example, to find subject-specific databases, use the search box below:

 
Useful resources

Subject-specific links from Leiden University, The Netherlands.

The Leiden University website offers a range of very useful, subject-specific links, including some that lead to valuable resources from the 'deep web'.

Use the drop-down menu to select an option relevant to your subject area.
 
Next week: Use quick tools and a range of downloads to get instant access to the information you need...
 

 

Reminder:
Already activated a ScienceDirect search alert?
To see the full list of ScienceDirect subject specific alerts please click here.


View the summary of all topics covered in this guide, and an archive of
previous emails.

Inform someone about this Web Research Guide.

About ScienceDirect
ScienceDirect provides online access to more than 1,800 journals, representing over 4 million full-text articles. Every article is available in seamlessly linked, fully searchable html format, as well as paginated PDF. ScienceDirect also offers a range of email alerts, enabling you to set up personalized updates that automatically notify you of the latest article citations, search results and journal issues.

Find out more at
ScienceDirect.
About the Web Research Guide
The guide consists of ten weekly emails focused on specific areas of web research. Each email is illustrated with subject-specific examples so that you can start using the research tips immediately. The tips cover a broad range of topics, from finding hidden information online, to locating expert directories and setting up subject-specific alerts of the latest news. The Web Research guide includes contributions from research scientists, information professionals and search engine specialists.

For more information about this guide,
click here.
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