introduction: one of the software packages designed for libraries and documenting centres is unesco cds/isis mini-micro software package. most libraries in iran have a copy of it. this research was aimed to investigate the degree of its application in central libraries of medical sciences universities in 2004. methods and materials: it is a descriptive study in which a questionnaire was used to...

this study investigates how contextual factors such as culture, geographical location and religious status may either encourage, determine or prevent information seeking behavior. the study applied both qualitative and quantitative methods of data collection as a mixed-method. fifteen catholic clergymen from northern nigeria were interviewed and 109 participated in a survey. findings show that ...

knowledge management is a process of using a source of strategic knowledge in organizations in order to find key information and organize and transfer it. many organizations adopted knowledge management systems to maintain their stability and usefulness. since there is occupational similarity between informatics experts and librarians, librarians can change to knowledge managers by being inform...

The notion of hypermap emerged as a response to the need for adding to geographical information systems (GIS) the linking and semantics capabilities of hypermedia. A hypermap is a new and powerful instrument for thematic cartography and spatial analysis in GIS. It extends the ability of a GIS to represent, store, manipulate, and display digital maps with the associative linking and interactive ...

The need to record the history of and the ability to reason about changes in the world has lead to a new field of research within the community of Geographical Information Systems (GIS). Recently a lot of new theory and concepts have emerged and a number of spatiotemporal data models have been presented. In this review we will have a closer look at the most important issues such as bitemporalit...

Many of the analyses undertaken by environmental and resource economics are intimately concerned with spatial variations. This article examines the contribution which Geographical Information Systems (GIS) may provide in incorporating the complexities of the spatial dimension within such analyses. The paper introduces the reader to the types of data handled by a GIS and overviews the practical ...

This paper deals with the issue of watermarking 2D-vector data which are used in Geographical Information Systems (GIS). The watermark is embedded in the tolerance range of the coordinates, where one bit of the watermarking information is represented by one PN-sequence, whose elements consist of the two values “+tolerance” and “– tolerance”. To robustly embed one bit of the watermarking informa...

Spatial Database is a collection of spatially referenced data that acts as a model of reality. Geographical Information System includes spatial data which is either in raster or vector form and data derived from remote sensors are increasingly utilized as source for GIS. Spatial data is the core part of the Geographical Information System. Data mining techniques are studied to discover knowledg...

The proliferation of 'commercial off the shelf' geographical information systems into the scientific community has resulted in the widespread use of spatial climate data in a variety of applications. This paper presents a review of the role of geographical information systems in climatology and meteorology by i) discussing methods used to derive and refine spatial climate data and ii) reviewing...

A major limitation in the use of transportation models is the difficulty of obtaining adequate data for them. Geographical information systems are a means of addressing this need. A geographical information system (GIS) is a “computerized database management system for the capture, storage, retrieval, analysis, and display of spatial (i.e., vocationally defined) data.’” GIST is the adoption and...