| Database name | ClasePeriodica |
|---|---|
| Short database name | UNAM |
| Available on | FirstSearch |
| Sources | More than 2,700 journals |
| Number of records | Over 600,000 |
| Coverage | Clase: 1975 to present. Periódica: 1978 to present. |
| Update frequency | Updated quarterly |
| Producer | Universidad Nacional Autonoma de Mexico (UNAM) |
Use a colon after an index label (for example, au:) when you are not certain of your search terms. Use an equal sign after an index label (au=) for an exact match search. You can search with an index label from any search screen. The information you type overrides any default menu selections. The following examples show sample rather than actual searches.
| Search indexes | Labels | Examples |
|---|---|---|
| Keyword | kw: | absoluta and efecto [keyword searches the Source Phrase, Subject, and Title indexes] |
| Abstract | ab: | escala |
| Accession number | no: | CLA0001234 |
| Article type phrase | at= | articulo [use to limit other search terms;browse index for available article types] |
| Author | au: | rodriguez |
| Author phrase | au= | rodriguez alvaro [last name first] |
| Database name phrase | ds= | clase periodica |
| Descriptor | de: | salud |
| Descriptor phrase | de= | salud publica |
| First page | pg: | 2 |
| Identifier | id: | logica |
| Issue | is: | 7 |
| Language phrase | ln= | ingles |
| Publication date | pd: | 2002 [browse index for date formats] |
| Source | so: | gaceta |
| Source phrase | so= | gaceta de economia |
| Standard number | sn: | 0325-1926 |
| Subject | su: | flexibilidad |
| Subject phrase | su= | flexibilidad laboral |
| Title | ti: | formacao |
| Title phrase | ti= | formacao dos compostos no portugues |
| Volume | vo: | 49 |
| Year | yr: | 1999 |
| Year 2 | yy: | 2001 |
What follows is a list of FirstSearch indexes and the combination of USE and STRUCTURE attributes that can be used to access them.
FirstSearch Indexes and USE and STRUCTURE attributes used to access them:
| Index | Description | Use Attribute | Structure Attribute | Indexed Fields and Subfields |
|---|---|---|---|---|
| Keyword (kw) | Any | 5110 | 2 | 245/a 520/a,e,p 650/a 653/a 773/t 954/a |
| Keyword All (ka) | Any | 1016 | 2 | 100/a 110/a 245/a 520/a,e,p 650/a 653/a 700/a 710/a 773/t,x 954/a |
| Abstract (ab) | Abstract | 62 | 2 | 520/a,e,p |
| Accession Number (no) | Control number-local | 12 | 2 | 035/a |
| Article Type Phrase (at=) | Content-type | 1034 | 1 | 949/L |
| Author (au, au=) | Author-name | 1003 | 1,2,101 | 100/a 110/a 700/a 710/a |
| Author Affiliation | Author Affiliation | 5100 | 2 | 100/u 700/u |
| Corporate Author Phrase (co=) | Corporate Author Phrase | 1005 | 1 | 110/a 710/a |
| Descriptor (de, de=) | OCLC Defined | 5650 | 1,2 | 650/a |
| Database Name Phrase (ds=) | OCLC Defined | 5988 | 1 | 904/p |
| First Page (pg) | OCLC Defined | 5006 | 2 | 949/f |
| Identifiers (id) | Subject-local | 29 | 2 | 653/a 954/a |
| Issue (is) | OCLC Defined | 5004 | 2 | 949/b |
| Language Phrase (ln=) | Code-language | 54 | 1 | 546/a |
| Publication Date (pd) | Date | 30 | 2 | 949/e,g |
| Standard Number (sn) | Identifier-standard | 1007 | 2 | 773/x |
| Source (so, so=) | Title-host-item | 1033 | 1,2 | 773/t |
| Subject (su, su=) | Subject | 21 | 1,2 | 650/a 653/a 954/a |
| Title (ti, ti=) | Title | 4 | 2 | 245/a |
| Volume (vo) | OCLC Defined | 5013 | 2 | 949/a |
List of FirstSearch fields for ClasePeriodica and the MARC fields to which they correspond:
| Field Name | MARC field(s) |
|---|---|
| Year | 008<date> |
| Standard SICI Code | 024/a |
| Accession Number | 035/a |
| Language of Abstract | 041/b |
| Author | 100/a 700/a |
| Corporate Author | 110/a 710/a |
| Author Affiliation | 100/u 700/u |
| Title | 245/a |
| Number of Bibliographic References | 504/b |
| Abstract | 520/a,e,p |
| Language | 546/a |
| Subject Added Entry, Topical | 650/a |
| Identifier (Spanish) | 653/a |
| Country of Publication | 773/c |
| Citation | 773/g |
| Host Item Entry | 773/t |
| ISSN | 773/x |
| URL to External Website or Link to Full Text Article (Direct Article Access) | 856/u |
| URL for UNAM's Document Delivery Service Center | 902/i |
| Database Name | 904/p |
| Library Holdings | 948 Detailed holdings information is available in FirstSearch Z39.50 Configuration Guide - Element Set Names. |
| Volume Number | 949/a |
| Issue Number | 949/b |
| Page Numbers | 949/c |
| Supplement | 949/d |
| Date | 949/e |
| First Page Number | 949/f |
| Marketing Defined Date | 949/g |
| Julian Day | 949/j |
| Article Type | 949/L |
| OCLC Record Display Type | 949/x |
| Identifier (English) | 954/a |
| Article Focus | 954/b |
The following restrictors can be used only in conjunction with an index search. They must be added to an index search with the Boolean AND to receive results:
| Restrictor | Type | Input | Use Attribute | Structure Attribute |
|---|---|---|---|---|
| Year* | All years Single year Range of years |
-- 19xx, 20xx 19xx - 20xx |
31 | 5 |
| Database Name Phrase* | All Clase Periódica |
-- clase periodica |
5988 | 1 |
| Limit to Full Text | Limit to full text |
-- |
6002 | 2 |
| Limit to Holdings | OCLC Institution Symbol | Enter symbol for OCLC institution | 56 | 2 |
* Both an index and a restrictor.
Note: To find the OCLC symbol for an institution, please see the online version of OCLC Participating Institutions.
Search results in the ClasePeriodica database can be sorted by Author (1003), Title (4), Source (1033), and Publication Date (30).
Exceptions are made, but these are generally correct:
| Punctuation | Rule | Punctuation | Rule |
|---|---|---|---|
| " | Delete and collapse | $ | Delete and collapse |
| ' | (apostrophe) Delete and collapse | % | Delete and collapse |
| . | (period) Delete and collapse | * | Delete and collapse |
| , | (comma) Delete and collapse | + | Delete and collapse |
| ; | Delete and collapse | > | Delete and collapse |
| : | Delete and collapse | < | Delete and collapse |
| () | Delete and collapse | @ | Delete and collapse |
| <> | Delete and collapse | ? | Delete and collapse |
| {} | Delete and collapse | -- | Delete and collapse |
| [] | Delete and collapse | / | Substitute a space |
| = | Delete and collapse | - | Retain and index |
| ! | Delete and collapse | & | Retain and index |
| # | Delete and collapse | ||
Keyword All searches (1016): The Keyword All search finds information in these fields: Author (100/a, 700/a); Abstract (520/a,e,p); Source (773/t); Standard Number (773/x); Subject (650/a, 653/a, 954/a); Title (245/a) and Year (964/x).
Using limiters: You can limit searches by Year (31), Database Name Phrase (5988) and Library Holdings (56). Limit to Full text (6002) is used to limit to full text from other databases. Full text availability is dependent upon your institution's access arrangements.
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