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This paper proposes a novel unsupervised damage detection approach based on a memetic algorithm that establishes the normal or undamaged condition of a structural system as data clusters through a global xpectation–maximization technique, using only damage-sensitive features extracted from output-only vibration measurements. The health state is then discriminated by considering the Mahalanobis squared distance between the learned clusters and a new observation. The proposed approach is compared with state-of-the-art ones by taking into account real-world data sets from the Z-24 Bridge (Switzerland), where several damage scenarios were performed. The results indicated that the proposed approach can be applied in structural health monitoring applications where life safety, economic, and reliability issues are the most important motivations to consider. [ABSTRACT FROM AUTHOR]

Using an ethnographical approach, this paper examines the relationship between Charismatic prophecy found in Evangelical circles and a discourse that envisions the concept of "the (Swiss) nation" as the basis and horizon for understanding God's activity within history. We will demonstrate the intricacy of various modes of participation, ranging from ecstatic involvement in church Sunday worship and Charismatic youth meetings to citizenship in the national community. In such settings, participants are urged to connect the religious and political realms in order to restore the nation through the (re)establishment of an ancestral purity which is seen to have its source in Christianity. "Spiritual warfare" is the framework assumed by the members to perceive the issues at stake, this framework is then extended to the public domain. The analysis will try to shed light on the nature of the communities envisioned, the diverse modes of participating in them and the role of the Holy Spirit as an empowering agent for reshaping those communities and society. [ABSTRACT FROM AUTHOR]