Wolfgang Dür

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The cross-national measurement invariance of the teacher and classmate support scale was assessed in a study of 23202 Grade 8 and 10 students from Austria, and Slovenia, participating in the Health Behaviour in School-aged Children (HBSC) 2001/2002 study. A multi-group means and covariance analysis supported configural and metric invariance across(More)
We propose the use of quantum optical systems to perform universal simulation of quantum dynamics. Two specific implementations that require present technology are put forward for illustrative purposes. The first scheme consists of neutral atoms stored in optical lattices, while the second scheme consists of ions stored in an array of micro–traps. Each atom(More)
We study mappings between distinct classical spin systems that leave the partition function invariant. As recently shown in [Phys. Rev. Lett. 100 110501 (2008)], the partition function of the 2D square lattice Ising model in the presence of an inhomogeneous magnetic field, can specialize to the partition function of any Ising system on an arbitrary graph.(More)
We present a hybrid scheme for quantum computation that combines the modular structure of elementary building blocks used in the circuit model with the advantages of a measurement-based approach to quantum computation. We show how to construct optimal resource states of minimal size to implement elementary building blocks for encoded quantum computation in(More)
We propose an experimentally accessible scheme to determine the lower bounds on the quantum Fisher information (QFI), which ascertains multipartite entanglement or usefulness for quantum metrology. The scheme is based on comparing the measurement statistics of a state before and after a small unitary rotation. We argue that, in general, the limited(More)
Background: Implementation research is an emerging topic in the field of health promotion research. It aims to translate innovative and efficacious health programs into practices and to ensure their effective implementation. In the setting of residential aged care, to date, there has been little research on factors which enable or hinder the implementation(More)
BACKGROUND The Baby-Friendly Hospital Initiative (BFHI) aims to promote and support breastfeeding. Globally, around 20,000 facilities have been designated Baby-Friendly. In Austria, however, only 16% of the maternity units have received BFHI-certification. Internationally, few studies have investigated facilitating or hindering factors for BFHI(More)