Information Access Patterns of Faculty in Arts and Sciences Colleges in Chidambaram

The term “user study” focuses on information use patterns, information needs, and information-seeking behaviour. Information- seeking behaviour and information access patterns are areas of active interest among librarians and information scientists. This article reports on a study of the information requirements, usefulness of library resources and services, and problems encountered by faculty members of two arts and science colleges, Government Arts & Science College and Sri Raghavendra Arts & Science College, Chidambaram.

Hierarchy-Based Access Control in Distributed Environments

Access control is a fundamental concern in any system that manages resources, e.g., operating systems, file systems, databases and communications systems. The problem we address is how to specify, enforce, and implement access control in distributed environments. This problem occurs in many applications such as management of distributed project resources, e-newspaper and payTV subscription services. Starting from an access relation between users and resources, we derive a user hierarchy, a resource hierarchy, and a unified hierarchy. The unified hierarchy is then used to specify the access relation in a way that is compact and that allows efficient queries. It is also used in cryptographic schemes that enforce the access relation. We introduce three specific cryptography based hierarchical schemes, which can effectively enforce and implement access control and are designed for distributed environments because they do not need the presence of a central authority (except perhaps for set- UP).

The Use of the Library Catalogue by Undergraduate Students in Niger Delta University Library

This study investigated the use of library catalogue in Niger Delta University library. The study employed descriptive research method and questionnaire as a research instrument to generate the data. The analysis revealed that 168 (51 percent) of the users were not aware of library catalogue, and 160 (54 percent) had never used the catalogue. The study also showed that 209 (71.7 percent) encountered difficulties in using the catalogue because of lack of proper education and, as a result, 202 (68.7 percent) of the users resolved to used browsing/reading through the shelves method to locate books. The analysis also revealed that 202 (68.7 percent) of users indicated that proper user education was a means to easy catalogue use in the library. Recommendations were made to improve effective catalogue use, including user education, regular orientation programme, and preparation of guidelines on use of the library catalogue.

Next Generation Catalogs (NGCs) : Meeting User Needs with Metadata and Search Technology

Recommendations • Become a beta partner with vendor • Test load collections before going live • Update cataloging codes to benefit your community • Don’t expect to drastically change cataloging practices

Analysis and Transformation of Pipe-like Web Mashups for End User Programmers

Mashups are becoming increasingly popular as end users are able to easily access, manipulate, and compose data from several web sources. To support end users, communities are forming around mashup development environments that facilitate sharing code and knowledge. We have observed, however, that end user mashups tend to suffer from several deficiencies, such as inoperable components or references to invalid data sources, and that those deficiencies are often propagated through the rampant reuse in these end user communities. In this work, we identify and specify ten code smells indicative of deficiencies we observed in a sample of 8,051 pipe-like web mashups developed by thousands of end users in the popular Yahoo! Pipes environment. We show through an empirical study that end users generally prefer pipes that lack those smells, and then present eleven specialized refactorings that we designed to target and remove the smells. Our refactorings reduce the complexity of pipes, increase their abstraction, update broken sources of data and dated components, and standardize pipes to fit the community development patterns. Our assessment on the sample of mashups shows that smells are present in 81% of the pipes, and that the proposed refactorings can reduce that number to 16%, illustrating the potential of refactoring to support thousands of end users developing pipe-like mashups.

Children’s Play in Cross-Cultural Perspective: A New Look at the Six Cultures Study

A qualitative and quantitative reanalysis of the Six Cultures data on children’s play, collected in the 1950s, was performed to revisit worlds of childhood during a time when sample communities were more isolated from mass markets and media than they are today. A count was performed of children aged 3 to 10 in each community sample scored as engaging in creative-constructive play, fantasy play, role play, and games with rules. Children from Nyansongo and Khalapur scored lowest overall, those from Tarong and Juxtlahuaca scored intermediate, and those from Taira and Orchard Town scored highest. Cultural norms and opportunities determined how the kinds of play were stimulated by the physical and social environments (e.g., whether adults encouraged work versus play, whether children had freedom for exploration and motivation to practice adult roles through play, and whether the environment provided easy access to models and materials for creative and constructive play).