Information infrastructure building efforts have entered both research literature and the practice of utilizing information and communication technology (ICT) in organizations as well as in our everyday life. The concept of infrastructuring has also challenged the traditional, project-based assumptions of information systems (IS) development. This study will explore infrastructuring within the ...

Large cities worldwide are increasingly suffering from a nexus of food, water, and energy supply challenges. This complex can be analyzed with modern physico-economic system models. Only when practical knowledge those affected, experts, decision makers is incorporated alongside various other data sources, however, the analyses suitable for policy advice. Here, we present concept “Sustainability...

Software implemented fault injection techniques (SWIFI) enable emulation of hardware and software faults. This emulation can be based on debugging mechanisms of general purpose processors [1] or in special debugging ports of embedded processors [2]. A well-known drawback of existing SWIFI tools rely on the temporal overhead introduced in the target system. This overhead is a problem when valida...

The Algerian economy is an example of a high level of rentierism, while the Egyptian economy shows a low/moderate level of rentierism. The ARDL bounds test approach was used upon annual time series data from 1965 to 2010. The results suggest cointegration for both countries. Bi-causality between energy consumption and growth in the long run was found. For Algeria there is a reversed (negative) ...

Preface 1 Sonderforschungsbereich Nexus is a Center of Excellence that has been established at Universität Stuttgart in January 2003. This interdisciplinary research center, which is funded by Deutsche Forschungsgemeinschaft (DFG), currently involves more than 30 researchers from various fields, including computer science, electrical engineering , civil engineering, mechanical engineering, and ...

We use the term ubiquitous supercomputing to refer to systems that integrate lowand mid-range computing systems, advanced networks, and remote highend computers with the goal of enhancing the computational power accessible from local environments. Such systems promise to enable new applications in areas as diverse as smart instruments and collaborative environments. However, they also demand to...