Postagem realizada em: 22/04/2019 às 10:43:53
Autor: Hacmoni Gonaalves Sodre

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Base de Dados

1951 - Base de dados númericos  no Bureau of Census (USA)

1960 - Busca em linha

1964 - MEDLARS - área da saúde disponível em batch

1965 - Chemical Abstracts Service disponível em batch

1967 - Engineering index começa a vender Fitas magnéticas

1969 - Base de dados em formato MARC da Library of Cogress

1970 - 50-100 bases de dadps disponíveis

1971 - MEDLINE operacional em linha

1972 - Inicio do DIALOG com 3 bases

1973 - Inicio do ORBIT com 3 bases

1980 - 300 bases de dados disponíveis

1984 - 2400 bases de dadps dispoíveis (explosão)

1986 - utilização do cd-rom para comercializar as bases

 

Tipos de Bases:

- referenciais:

1. Bibliográfica (acesso a informação - traz resumo na maioria das vezes)

2. Catalográfica (espelho do catálogo/ficha) - relativo a um acervo de uma biblioteca (livros e títulos de periódicos)

3. Diretórios 

- de fonte  - agrega as referenciais  +

1. Númerico

2. Texto Completo

3. Textuais e Numéricos

4 Gráficos

EXERCÍCIO - ACESSO AS BASES DE DADOS 

Library of Congress - collections contain over 162 million books, periodicals, manuscripts, maps, music, recordings, images, and electronic resources. The LC Catalog contains 17 million records describing these collections. You can search Catalog records by keyword or browse by authors/creators, subjects, names/titles, series/uniform titles, and call numbers. Browse lists also include searching aids such cross-references and scope notes.

Library of Congress cataloging dates back to 1898. The LC Catalog includes many early records (primarily for books and periodicals) created by the Library between 1898 and 1980. These records are gradually being updated to reflect contemporary language and usage. Authors/creators and subjects found on older records often contain the legend "[from old catalog]" to indicate possible deviations from current LC practices. In addition, records for some materials cataloged before 1980 are only available to researchers onsite in the Library's Main Card Catalog.

Items in the Library's special collections are generally described as aggregations or archival collections rather than individually identifying each specific item. LC Catalog records for many archival collections are linked to more detailed guides available in Finding Aids Search. Library special format materials are also discoverable via separate expert search systems (such as American Memory, Chronicling America, the Performing Arts Encyclopedia, and the Prints and Photographs Online Catalog) that are gradually being replaced by the single search available from Library of Congress Home. Databases, ejournals, and ebooks that are available to patrons onsite (including items found in fee-based online services) can be located through the E-Resources Online Catalog. Primo Central, a web-scale discovery service, offers access to articles, ebooks, and other eresources in selected subscription and free resources available at LC.

 

 

MEDLINE - Medical Literature Online :

Indexa cerca de 3.700 títulos de periódicos (29 são brasileiros) da área biomédica de âmbito internacional (cobre 60% da literatura americana).

Produzida pela National Library of Medicine (Washington), desde 1966.

Tem como produtos impressos: "Index Medicus", "Index to Dental Literature", "Nursing Index". Atualizada em CD-ROM trimestralmente. Também disponível via Internet <URL: http://www.nlm.nih.gov/> ; <URL: http://www.ncbi.nlm.gov/PubMed>

PubMed

PubMed comprises more than 29 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites. link acessadohttps://www.ncbi.nlm.nih.gov/pubmed?cm

 

Engineering inDex / Ei Compendex

Ei Compendex is the broadest and most complete engineering literature database available in the world. It provides a truly holistic and global view of peer reviewed and indexed publications with over 20 million records from 77 countries across 190 engineering disciplines. Every record is carefully selected and indexed using the Engineering Index Thesaurus to ensure discovery and retrieval of engineering-specific literature that engineering students and professionals can rely on. By using Ei Compendex, engineers can be confident information is relevant, complete, accurate and of high quality.