BACKGROUND Sample size planning for longitudinal data is crucial when designing mediation studies because sufficient statistical power is not only required in grant applications and peer-reviewed publications, but is essential to reliable research results. However, sample size determination is not straightforward for mediation analysis of longitudinal design. METHODS To facilitate planning th...

Background: Identification of the factors that result in academic achievement and prevent academic failure is of extreme importance due to the effective role of nursing in the health and wellbeing of human beings. Objectives: This study is done with regards to the important role of academic emotions in academic achievement and the double effect of academic engagement mediators and cognitive st...

There are many studies on Knowledge Management (KM) in different organizations however less investigation university, especially teaching staff terms of using KM to enhance their duties at the universities. Thus, this paper presents a study examine Critical Influential Factors and Innovation UAE Universities Performance. The adopted quantitative approach where questionnaire survey was carried o...

This article provides a critical examination of telecommunications regulation in the EU and argues for the need for change along the lines of subsidiarity and mediation. This discussion is particularly timely, as the European Commission is working on a new telecommunications regulatory framework, with the lessons and failures of the past appearing more critical than ever. In this context, this ...

This study empirically establishes a link between medieval trade, agglomeration and contemporary regional development in ten European countries. It documents a statistically and economically significant positive relationship between prominent involvement in medieval trade and commercial activities and regional economic development today. Further empirical analyses show that medieval trade posit...

Previous studies on information disclosure have heavily relied on the justice theory to explain how users balance the benefits and privacy risks (e.g., privacy calculus) induced by the information disclosure behavior. However, the specific mechanism of privacy calculus (or the role of justice) and the boundary conditions under which the privacy calculus works have been rarely empirically invest...

The diversity of spatial information systems promotes the need to integrate heterogeneous spatial or geographic information systems (GIS) in a cooperative environment. This paper describes the research project ISIS (Interoperable Spatial Information System) which is a semantic mediation approach to support GIS interoperability. Its key characteristic is a dynamic resolution of semantic conflict...