This paper presents some experiences in the exploitation of a database interface development architecture in which the interface is implemented using the facilities of the database. It is shown how novel interfaces, specifically a multiparadigm query interface and a debugger for an active rule system, can benefit from and exploit the uniform representation of interface and database system conce...

Recent studies have suggested that educators should avoid concrete instantiations when the goal is to promote transfer. However, concrete instantiations may benefit transfer in the long run, particularly if they are “faded” into more abstract instantiations. Undergraduates were randomly assigned to learn a mathematical concept in one of three conditions: generic, in which the concept was instan...

We investigate the relation between two quantitative measures characterizing short term memory in input driven dynamical systems, namely the short term memory capacity (MC) [3] and the Fisher memory curve (FMC) [2]. We show that even though MC and FMC map the memory structure of the system under investigation from two quite different perspectives, for linear input driven dynamical systems they ...

Happiness is among the concepts which were subject of empirical studies in 1960s. This concept has been used interchangeably with such concepts as joy, satisfaction with life and the like. While meaningfully correlating with the feeling of joy and satisfaction with life, as indicated by numerous researches, the feeling of happiness is affected by different factors and situations. The present re...

The local community is a complex socio-economic system, and its ability to function for an indefinitely long period of time (viability) is not investigated sufficiently today. The purpose of the research was, using the cognitive mapping, propose to the local community management developing their own management strategies to ensure its viability. Considering the weakly structured subject area of...

The paper examines the efficiency and applicability of various economic concepts dealing with environmental uncertainty. Their applicability is analysed by classifying environmental uncertainty according to different criteria. Using such a structure, it can be shown that while the economic concepts are able to deal satisfactorily with some types of environmental uncertainty they are unable to d...