330 likes | 431 Views
Start Searching. Online databases step by step. Start searching. Different roles are possible, we will act as intermediaries, so communication with the customer is very important. The customer always acts (too) late, is in a hurry
E N D
Start Searching Online databases step by step
Start searching • Different roles are possible, we will act as intermediaries, so communication with the customer is very important. • The customer always acts (too) late, is in a hurry • “Keep cool” take your time to prepare your search actions, don’t “jump” in the system, unless you are very experienced, it will cost extra time & money and probably not give proper results • Try to understand the customer fully, ask questions if the problem/subject is not fully clear Stimulate 4, October 2004, VUB Brussel
- To find the correct database you can use - Manuals, data sheets - System Help like - Quest Topic or Dialindex - Database of databases / Gale Database (Dialog) - Stimulate 4, October 2004, VUB Brussel
Searching Stimulate 4, October 2004, VUB Brussel
Defining a search strategy Stimulate 4, October 2004, VUB Brussel
Defining Search Terms (1) Stimulate 4, October 2004, VUB Brussel
Indexes from EAUDOC The Basic Index for EAUDOC consists of the Title (TI), Controlled Terms (CT) and the Abstract (AB). If no access code is specified then all of these codes, belonging to the Basic Index, are included in Expand and Select commands, eg S AFRIQUE means select the word “Afrique“ in the title, controlled terms and the abstract. Basic Index Stimulate 4, October 2004, VUB Brussel
Indexes from EAUDOC Basic Index Title words Abstract Stimulate 4, October 2004, VUB Brussel
General problems with “Words” Causes • Different languages • Jargon • Spelling (UK, US) • Synonyms • Ambiguity, Homonyms • Nouns & Verbal forms Stimulate 4, October 2004, VUB Brussel
Defining Search Terms (2) Stimulate 4, October 2004, VUB Brussel
Information from a source publication (1) Using Citation databases Stimulate 4, October 2004, VUB Brussel
Information from a source publication (2) Stimulate 4, October 2004, VUB Brussel
General search possibilities in databases Stimulate 4, October 2004, VUB Brussel
File 74:AQUALINE:1960‑ SET ITEMS DESCRIPTION +=OR;*=AND;‑=NOT ‑‑‑ ‑‑‑‑‑‑‑ ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ ? e water resour/ct EXPAND WATER RESOUR/CT REF ITEMS INDEX‑TERM T RT E1 1 WATER REMEDIATION E2 1 WATER RESERVES E3 * WATER RESOUR E4 2580 WATER RESOURCES E5 592 WATER RESOURCES BULLLETIN E6 70 WATER RESOURCES DEVELOPMENT E7 101 WATER RESOURCES PLANNING E8 3 WATER RETENTION BASINS E9 190 WATER S E10 2 WATER SAMPLES E11 63 WATER SAVING E12 18 WATER SEALS E13 9 WATER SERVICE COMPANIES E14 1 WATER SERVICES COMPANIES E15 99 WATER SHORTAGE E16 2 WATER SIDE E17 4 WATER SKIING E18 79 WATER SOLUBLE FRACTIONS E19 3 WATER SPACE ...Pages.Lines: More= 12.8 Stimulate 4, October 2004, VUB Brussel
Question on bees and communication Stimulate 4, October 2004, VUB Brussel
Boolean Concepts Each circle represents a different subject concept Finds citations containing both Finds citations containing at least one Finds citations which contain A but not B Stimulate 4, October 2004, VUB Brussel
Command lines select Bees or Honey bee? or Apis Mellifica or (Apis Mellifera) or Abeille? (Honey(w)bee?) (Apis Mellife?a) Gives set 1 select Dance? or Pheromone? or Feromone? Gives set 2 select Communicati? or Information(w)transfer or Information(w)flow Gives set 3 Combine 1 and 2 and 3 Gives set 4 ( and probably the answer to your question) ;-) or Stimulate 4, October 2004, VUB Brussel
Truncation of search terms Means that you only type the word stem (= trunc) followed by a truncation sign. (? For EINS) The system will automatically put the likely word combinations in the "OR" relation • Right truncation For right truncation you type the first part of the search term followed by a truncation sign (this is also useful for the plural form). Examples: • Hydrolog? will result inhydrology of hydrological or hydrologically or … • Left truncation ( only available in a few systems)For left truncation you first type the truncation sign, directly followed by the last part of the search term. … • Centre truncation or masking For centre truncation you put the truncation sign somewhere within the typed search term. Examples: • Wom?n will result inwoman or women • Organi?ation will result inorganisation or organization Stimulate 4, October 2004, VUB Brussel
Advantages and disadvantages of truncation • Advantages: • Using truncation saves a lot of typing • Truncation can result in word combinations which you had not thought of before • Disadvantages: • Using truncation could result in undesired information. For instance, you are interested in literature on automation and when you type "auto*" you will also find information on cars.So, when using right truncation, place the truncation sign as far to the right as possible! • Truncation signs and their denotation could differ per host. Stimulate 4, October 2004, VUB Brussel
TRUNCATION Stimulate 4, October 2004, VUB Brussel
POSITIONAL OPERATORS Stimulate 4, October 2004, VUB Brussel
Digital Object Identifier (DOI) Digital Object Identifiers (DOI) are now available as a separate field in the following databases: Psychinfo, CAB and Global Health. The DOI will offer a direct link to the full text of e.g. journal articles via Medra, a service offered by Cineca. It is expected that in the course of 2004 more databases will become available with a separate field for the DOI. Most of the direct links to the full text have a charge or require a subscription. To see an example, please use the command e(xpand) 10/doi in one of the above mentioned databases. Stimulate 4, October 2004, VUB Brussel
Search Strategy Checklist • 1. Define the topic • 2. Break it down into component concepts • 3. Decide on the words/phrases to describe concepts • Think of possible alternatives: • terminology • spelling • synonyms • 4. Decide on relationships including TRUNCATION • 5. Try out the search • 6. Display results • 7. Refine search if necessary • BROADEN • put alternatives • reduce number of linked terms • change terminology • NARROW • link terms • add terms • change terminology Stimulate 4, October 2004, VUB Brussel