Nowadays, with the use of technology and the Internet, education is undergoing major revolution; lookingself-assured to new ways of education. One of the commonly used method of teaching used to promote knowledge, consists in the use of virtual environments, which are available online. Unlike orthodox models of software development, the open source model is based on the collaborative efforts of...

We present a term rewriting system to solve a class of open problems that are generalisations of Kuratowski’s closure-complement theorem. The problems are concerned with finding the number of distinct sets that can be obtained by applying combinations of axiomatically defined set operators. While the original problem considers only closure and complement of a topological space as operators, it ...

This paper proposes a technique to build entity profiles starting from a set of defining corpora, i.e., a corpus considered as the definition of each entity. The proposed technique is applied in a classification task in order to determine how much a text, or corpus, is related to each of the profiled entities. This technique is general enough to be applied to any kind of entity, however, this p...

Historically many ways of expressing memory tests have been used, varying from the use of general purpose programming languages to special notations. A notation, originally introduced for march tests in 1990, has been adopted and extended by many researchers. This paper extends that notation, in a systematic and open way, to a memory test language which allows march tests, pseudo march tests, t...

INTRODUCTION The cardiopulmonary bypass may have multiple systemic effects on the body organs as liver. This prospective study was planned to explore further the incidence and significance of this change. METHODS Two hundred patients with coronary artery bypass grafting (CABG), were randomly selected for the study. Total and indirect bilirubin, aspartate aminotransferase, alanine aminotransfe...

The purpose of this study was to investigate the pedagogical issues concerning Open and Distance Learning (ODL) systems through a critical review of the relevant published work. The review categorized articles into three categories, namely theoretical approaches, technological approaches and evaluation studies. The review showed that open and distance learning is mainly technology driven. Resea...