This paper provides an overview of the beginnings of the newspaper in Brazil with information on the more significant titles and their role in the history of journalism and their impact on social change that occurred between the Imperial and Republican periods. Current collections at the National Library and legal deposit are discussed. It…

A pool of authority records for bibliographic entities (persons, corporate bodies, works/expressions, concepts, objects, events, and places) to use on the Internet is of interest, not only to libraries and their users, but also to publishers, copyright and rights management organizations, museums, and archives. This paper explores different models…

This paper considers the processing of digital library queries, consisting of a text component and a structured component in distributed environments. The paper concentrates on the processing of the structured component of a distributed query. A method is proposed to identify the databases that are likely to be useful for processing any given…

Currently, the World Wide Web contains an estimated 7.4 million sites (OCLC, 2001). Yet even the most experienced searcher, using the most robust search engines, can access only about 16% of these pages (Dahn, 2001). The other 84% of the publicly available information on the Web is referred to as the "hidden,""invisible," or…

This paper demonstrates how cataloging for a collection of over 40,000 files on individual artists, developed by the Museum of Modern Art Library (New York), is made available to researchers around the world by incorporating MARC records for each file in an online catalog that can be searched over the Internet. Examples are provided of the…

At BIOSIS, development of a retrieval system from the pragmatic viewpoint of providing viable self-supporting retrieval service from a data base of more than 2 million references has resulted in focusing attention on supporting the forumlation of the information need into an effective computer search specification. (JB)

Application of a generalized data base management system enabled the new Physics-Mathematics-Astronomy Library to couple the immediate needs of moving and integrating two libraries with long-term capabilities. (Author)

Search procedures and techniques used by the Center staff are described; the computerized information systems and traditional resources used and types of search requests received are delineated. (Author/JB)

This paper describes a technical document center providing remote-terminal retrospective search capability and shows its evolution from the traditional catalog card operation. (2 references) (Author)

A major problem in the design of screening systems for substructure searches of chemical structure files is the development of a methodology for selection of an optimal set of structural characteristics to act as screens. Distributions of several structural characteristics of the Chemical Abstracts Service Registry System are summarized. (13…

The Census Access Program at the University of Florida makes available the computerized 1970 U.S. Census of Population and Housing.'' Faculty, students, planning agencies and commercial interests make use of the system. Discussed are personnel and management requirements. (DH)

A discussion of a project concerned with the development of a comprehensive instructional management system, including development work on the banking'' of a new system of objectives in reading instruction. (Author/HB)

Since 1969 the National Science Library, National Research Council of Canada, has operated a selective dissemination of information service. It has evolved into a joint SDI program of the National Science Library, National Library of Canada, and the Geological Survey of Canada, which supports 10 bibliographic data bases. (11 references) (Author/DH)

Information Dissemination Centers have emerged as brokers or retailers for computer-based information retrieval services. Areas which concern users and suppliers are the nature of data bases available for search, retrieval results and factors affecting them, timeliness of services, cost and prices, and practical operational considerations related…