Electronic access to the ATCC database

Antonio R. Franco bf1rodri at cc.uco.es
Wed Jul 14 04:18:36 EST 1993


I have found this message to be interesting enough to be posted in the 
chlamy newsgroup. 


Antonio R. Franco
Bioquimica y Biologia Molecular
Cordoba. Spain
==================

In article <21s3ed$r6e at charm.magnus.acs.ohio-state.edu> mliberto at magnus.acs.ohio-state.edu (Muriel Liberto) writes:
>
>Hello fellow bionetters!  I need some help finding access to the ATCC
>online catalogues.  I understand that searches of these catalogues are
>availble via internet, but I don't know where or how to access.

telnet to 'atcc.nih.gov' 
at the 'login:' prompt enter 'search'
then at the 'Password:' prompt enter 'common'.

The ATCC database is displayed using IRX.  IRX is the database system
that is used to display the OMIM database amongst others. 

To order things from ATCC, either contact:

	ATCC
        Sales and Marketing Dept.
        12301 Parklawn Drive
        Rockville, Maryland
        20862
        USA

or email: help at atcc.nih.gov


 
                   Quick Guide to Using New IRX (NIRX)
 
          Using IRX is a simple, three-step procedure -
 
             - Enter a question in plain English.
             - Receive a list of documents which is ranked in
                order of expected relevance.
             - Select documents from the list for reading or printing.
 
          IRX is designed to be a self-prompting system with
          menu options displayed at each stage of the retrieval
          process.  Users are encouraged to learn the system
          by using it and relying on the Help information that
          is associated with each menu.
 
 
 
          What Is IRX?
          ===========
 
          IRX is an information retrieval system that attempts
          to find the set of documents that best matches a
          user's question.  The matching is done probabilistically
          and therefore the set of retrieved documents is not
          guaranteed to answer precisely the user's question,
          but is likely to contain relevant information.  The
          retrieved documents are ordered according to their
          expected relevance and so a user typically needs to
          review only a few documents even when the retrieval
          set is large.
 
 
          Entering A Question
          ===================
 
          IRX allows a question to be entered in plain English.
          The system will ignore common words (and, the, for, etc.)
          and attempt to match the remaining words to words
          within a document.  Although effective results can
          be obtained by entering free-text questions, there
          are occasions where features of a special search
          language might be desirable.  Information on the use
          of such features as Boolean operators, truncation,
          and field restriction is available within the Question
          menu.  In order to find out if a particular term is in
          the database, the V (Vocabulary) command can be used
          to display the term and alphabetically-related terms
          and their frequencies.
 
 
          Selecting Documents
          ===================
 
          If IRX finds documents which match one or more terms
          in the question, a list of the matching documents is
          presented to the user in order of predicted relevance.
          The list consists of the title of the document and
          a calculated relevance weight.  To choose a document,
          an arrow cursor is moved up or down in the left margin
          to align with a document title.  That title is then
          considered the 'current document' and it may be printed
          or read online.
 
 
          Reading Documents
          =================
 
          Once a particular document has been selected for reading,
          the title and first 10-15 lines are displayed on the
          screen.  Commands are available for moving forward and
          backward in the document, skipping to specific fields,
          or going directly to the lines containing the terms 
          which match terms in the question.  Matched terms are
          highlighted.  At any point during document selection
          or reading, the user may return to the question menu
          to formulate another request.  The cycle of question
          - retrieval - document selection continues until a
          request to Exit is made and confirmed.
 
 
          Obtaining Online Help
          ===================== 
 
          The first two lines of the screen always display the
          major commands which can be invoked at any given time.
          The command '??' allows the user to obtain detailed
          information on the commands available in the major parts
          of the system such as question entry, document selection,
          and document reading.  The '??' command invokes a single
          summary screen which gives a brief description of
          the respective part of IRX and lists all the commands that
          may be entered at that point.  Specific information on a
          particular command can be displayed by typing the command
          name.  Since specific information for a command can extend
          over multiple screens, a paging command allows the text
          to be scrolled forward or backward.  In order to leave the
          Help screens, the ESCAPE key can be pressed to return to
          the previous menu.  
 


-- 
GARY WILLIAMS,  Computing Services,       Janet:     G.Williams at UK.AC.MRC.HGMP
MRC Human Genome Mapping Project,         Internet:  G.Williams at HGMP.MRC.AC.UK
Watford Rd, HARROW, Middx, HA1 3UJ, UK      ** Sequence databases have  **
Tel 081-869 3294   Fax 081-423 1275         ** about a 3% error content **




More information about the Chlamy mailing list