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Clase and Periódica
Rev 3/17/2008
Database name: ClasePeriodica
Short database name: UNAM
Available on: FirstSearch Test Server and Production Server
Why select this database?
- CLASE indexes documents published in Latin American journals specializing
in the social sciences and humanities.
- PERIÓDICA covers journals specializing in science and technology.
- Offer access to more than 400,000 bibliographic citations from documents published
in 2,600 scholarly journals published in the Spanish, Portuguese, French and English
languages.
- Contain information from articles, essays, book reviews, monographs, conference
proceedings, technical reports, interviews and brief notes published in journals
edited in 24 different countries of Latin America and the Caribbean, as well as
from publications that focus on Pan-American issues.
| Subjects included |
| agricultural sciences |
engineering |
medicine |
| anthropology |
exact sciences |
philosophy |
| arts |
foreign affairs |
physics |
| biology |
geosciences |
politics |
| chemistry |
history |
psychology |
| communication science |
law |
religion |
| demography |
library and information science |
sociology |
| economics |
linguistics and literature |
|
| education |
management and accounting |
|
Coverage/update frequency
Clase: 1975 to present.
Periódica: 1978 to present.
Updated quarterly.
Record display information
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 |
| Author Affiliation |
100/u
700/u |
| Title |
245/a |
| 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 |
| Instructions |
856/i |
| Full Text Format (e.g., ASCII, PDF) |
856/q |
| URL to External Website or Link to Full
Text Article (Direct Article Access) |
856/u |
| Note (e.g., OCLC Direct Article Access,
size) |
856/x |
| Materials Specified (e.g., Cover Art,
Local Ownership Info) |
856/3 |
| Database from which Full Text Article
Is Accessed |
856/8 |
| 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 |
| Publication Year |
964/x |
| Publication Year 2 |
964/y |
| E-Journal URL |
973/e |
Indexes
What follows is a list of FirstSearch indexes and the combination of USE and STRUCTURE
attributes that can be used to access them.
- For any FirstSearch label where multiple USE attributes are listed all the attributes
will provide the exact same search result sets.
- Any USE attribute that is not marked as a restrictor is available via the SCAN service.
- Restrictors are specially implemented indexes and are not available for scanning. Terms
for these must be ANDed with other terms to limit the size of the result set. See the
table provided for each restrictor to determine valid terms and their associated meaning.
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
245/a
520/a,e,p
650/a
653/a
700/a
773/t,x
954/a
964/x |
| 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
700/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 |
| Year (yr)* |
Date-publication |
31 |
2,4,5 |
964/x |
| Year 2 (yy) |
Date-publication |
5031 |
2,4,5 |
964/y |
Restrictors
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 in order 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 |
--
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.
Sorting
Search results in the ClasePeriodica database can be sorted by Author (1003),
Title (4), Source (1033), and Publication Date (30).
General punctuation rules
(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 |
| . |
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 |
Searching tips
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.
Copyright
Copyright © UNAM. All Rights Reserved.
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