Groupwareplattformen im schulischen Umfeld sind seit vielen Jahren fest im Schulalltag integriert (Stahl 2004, S. 163). Die Akzeptanz vieler Systeme leidet aber an einer umständlichen Bedienung und einem nicht bedürfnisgerechten Funktions-angebot (Jiang et al. 2005, S. 570). Zudem scheint die...

Social capital covers different characteristics such as social networks, social participation, social support and trust. The aim of this study was to explore which aspects of social capital were predictive of mortality. Criteria for inclusion in the meta-analysis were: population based...

This article re-examines the issue of cross-sectional correlation. Kolari and Pynnonen (2010) find that, in the case of event-date clustering with the same event window for all firms, relatively low cross-sectional correlation among abnormal returns can seriously bias standard tests to...