On the Necessity of Superparametric Geometry Representation for Discontinuous Galerkin Methods on Domains with Curved Boundaries

We provide numerical evidence demonstrating the necessity of employing a superparametric geometry representation in order to obtain optimal convergence orders on two-dimensional domains with curved boundaries when solving the Euler equations using Discontinuous Galerkin methods. However, concerning the obtention of optimal convergence orders for the Navier-Stokes equations, we demonstrate numerically that the use of isoparametric geometry representation is sufficient for the case considered here.Comment: AIAA Aviation 2017 conference pape

Focused Immersion: When Do Information Technology Affordances Disrupt It?

The rise of the use of Information Technology (IT) in many activities throughout people’s lives has led to questions about the impact on our attention. While most studies in this area have examined the role of task-specific technology, we still know little about the broader role of IT in people’s environments. In this study, we examine how and when exposure to technology affordances, such as having a smartphone at hand, affects focused immersion in a task. Based on theory on construal levels, and confirmed by our study, we posit that higher level, abstract ways of thinking protect against the negative impact of IT affordances on focused immersion. This insight can potentially help individuals tailor their IT environments to their needs for a deeper engagement in their activities. Further, by connecting strands of literature on focused immersion, this work can facilitate the development of a more comprehensive theory of focused immersion

Marten Zwanenburg on UN Peacekeeping in Lebanon, Somalia and Kosovo: Operational and Legal Issues in Practice by Ray Murphy. New York: Cambridge University Press, 2007. 392 pp.

A review of: UN Peacekeeping in Lebanon, Somalia and Kosovo: Operational and Legal Issues in Practice by Ray Murphy. New York: Cambridge University Press, 2007. 392 pp

Foreign Terrorist Fighters in Syria: Challenges of the “Sending” State

This article discusses domestic measures taken by the Netherlands to combat the phenomenon of foreign terrorist fighters, predominantly in the context of the Syrian conflict. It discusses criminal prosecution, asset freezes, deprivation of nationality and revocation of travel documents. The author concludes that in each of these fields, there is a close relationship between international law and national law