In a real-world environment a face detector can be applied to extract multiple face images from multiple video streams without constraints on pose and illumination. The extracted face images will have varying image quality and resolution. Moreover, also the detected faces will not be precisely aligned. …

In a real-world environment a face detector can be applied to extract multiple face images from multiple video streams without constraints on pose and illumination. The extracted face images will have varying image quality and resolution. Moreover, also the detected faces will not be precisely aligned. …

Communication plays an important role in manyprofessional contexts. This is especially truefor students in the field of social work. Theaim of this study was to develop formative,self-regulated multimedia self-assessment ofsocial-communicative competencies for socialwork students. First, a pilot study …

There are both opportunities and constraints regarding information operations in Africa.The specific context of each African country may differ. However, in general, the concentration of wealth and power in a ruler network in the capital creates opportunities for control-and-command warfare. Factions …

Estimation of the factor model by unweighted least squares (ULS) is distribution free, yields consistent estimates, and is computationally fast if the Minimum Residuals (MinRes) algorithm is employed. MinRes algorithms produce a converging sequence of monotonically decreasing ULS function values. Various …

In an anonymous 4-person economic game, participants contributed more money to a common project (i.e., cooperated) when required to decide quickly than when forced to delay their decision (Rand, Greene & Nowak, 2012), a pattern consistent with the social heuristics hypothesis proposed by Rand and colleagues. …