The study of linear functions is important as it provides students with their first experience of identifying and interpreting the relationship between two dependent variables. This paper, which builds on previous research, reports a study undertaken with 64, year 9 students from two Australian schools. Linear functions were introduced to these students through a graphics calculator supported, ...

This paper presents the concept of alternative presentation components in the context of mobile visualization. A criterion for distinguishing between media with respect to their preparation for the presentation of information is introduced and the conventional visualization pipeline is extended to accommodate the needs of mobile information presentation. The concept is illustrated by some examp...

Social scientists have long theorized about &dquo;mass society&dquo; and &dquo;mass culture&dquo; and, generally, are appalled by the frightening images brought to mind by these concepts. A wide-ranging debate over their validity, a concern about the &dquo;functions&dquo; of the mass media in modern society, and their &dquo;effects&dquo; on the general public have been major subjects of mass co...

The problem frame approach allows to precisely pin the software development problems before starting to work on them, thus avoiding to solve the wrong problems. Furthermore, the problem frames allow to develop tailored methods and schematic solutions to handle the tasks required to solve the corresponding problems. In this paper we adopt this approach to study the problem of developing a large ...

This paper aims to present a theoretical survey of the capability approach in an interdisciplinary and accessible way. It focuses on the main conceptual and theoretical aspects of the capability approach, as developed by Amartya Sen, Martha Nussbaum, and others. The capability approach is a broad normative framework for the evaluation and assessment of individual well-being and social arrangeme...

Maximum likelihood (ML) estimation of categorical multitrait-multimethod (MTMM) data is challenging because the likelihood involves high-dimensional integrals over the crossed method and trait factors, with no known closed-form solution. The purpose of the study is to introduce three newly developed ML methods that are eligible for estimating MTMM models with categorical responses: Variational ...

The management of distributed software development projects presents many challenges. One of them happens right at the start of the project and consists of the allocation of tasks between remote teams. When allocating a task to a site, the project manager takes into account several factors such as technical knowledge of staff and proximity to the client. The project manager usually takes this d...

In this study, we tested the hypothesis, derived from the theorizing of Derryberry and Tucker (1994), that the mere enactment of approach or avoidance behavior, without concomitant pursuit of personal approach or avoidance goals, can independently moderate the scope (i.e., breadth or narrowness) of attention on both the perceptual and conceptual levels. SpeciWcally, we predicted that enactment ...

Abstrakt In this note we critically examine the current state of teaching of Discrete Simulation at our university. We consider the case study of one of the projects that students are expected to solve in the course. Three approaches are compared nonmodular resulting from the current approach, using Haskell, and using Reactive framework from C#. We conclude that functional approach can address ...

In addition to its intrinsic practical importance, nonlinear time delayed feedback control applied to lifting surfaces can result in interesting aeroelastic behaviors. In this paper, nonlinear aeroelastic response to external time-dependent loads and stability boundary for actively controlled lifting surfaces, in an incompressible flow field, are considered. The structural model and the unstead...