Vergleich verschiedener Verhaltenstherapieformen bei aggressiven Hunden

Ziel der Studie war es, drei verschiedene Verhaltenstherapieformen bei aggressiven Hunden auf ihren Behandlungserfolg hin zu vergleichen

An Architecture for Peer-to-Peer Integration of Interorganizational Information Systems

On the business case of independent sales agencies we discuss the requirements of tiny sized enterprises for data integration. If a multitude of independent enterprises need to be integrated, we argue that those are best represented by equal peers and describe the Architecture of VIANA: a Peer-to-Peer architecture for materialized integration of information systems, both in the interas well as the intraorganizational domain. VIANA propagates updates on data between peers and continuously monitors data quality. We argue that this type of integration can be accomplished with ideally no alteration of the participating information systems and that the integration may benefit substantially from existing data exchange formats. To this end we formulate the architecture in a way that existing XML technologies and standards may be utilized without the need for alterations

Tangle analysis of difference topology experiments: applications to a Mu protein-DNA complex

We develop topological methods for analyzing difference topology experiments involving 3-string tangles. Difference topology is a novel technique used to unveil the structure of stable protein-DNA complexes involving two or more DNA segments. We analyze such experiments for the Mu protein-DNA complex. We characterize the solutions to the corresponding tangle equations by certain knotted graphs. By investigating planarity conditions on these graphs we show that there is a unique biologically relevant solution. That is, we show there is a unique rational tangle solution, which is also the unique solution with small crossing number.Comment: 60 pages, 74 figure

With or Without Blockchain? Towards a Decentralized, SSI-based eRoaming Architecture

Fragmentation and limited accessibility of charging infrastructure impede the adoption of electric vehicles. To improve the availability of charging infrastructure independent of providers, eRoaming offers a promising solution. Yet, current eRoaming systems are typically centralized, which raises concerns of market power concentration. While the use of blockchain technology can obviate such concerns, it comes with significant privacy challenges. To address these challenges, we explore a combination of blockchain with self-sovereign identity. Specifically, we apply a design science research approach, which helps us to identify requirements, derive a conceptual architecture, and deduce design principles for decentralized eRoaming and beyond. We find that blockchain may best leverage its benefits when it takes a backseat as a public registry for legal entities. Moreover, we find that the use of self-sovereign identities could improve compliance with privacy regulations, but they should not be overused

How Organizations Sustain and Navigate Between (De)centralization Equilibria: A Process Model

Finding the ‘right’ balance between centralization and decentralization in organizational processes, governance, and IT can be difficult. To navigate this tension field, organizations need to find (de)centralization equilibria that are often dynamic and depend on organizational strategy and context. However, little is known about how organizations should respond once an old equilibrium is punctuated or breaks down. In this paper, we thus conduct an inductive multiple-case study to investigate how organizations sustain and transition between (de)centralization equilibria. We synthesize our insights into a process model that paints the transition as an iterative recalibration process subject to centralization and decentralization tensions. Often, this process will require local and temporary compromises. Our work contributes a much-needed process perspective to the IS literature on (de)centralization