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See detailRevision des kulturellen Gedächtnisses im Spannungsfeld multipler Nah- und Fernfremde
Wiegmann, Eva UL

in Cepl-Kaufmann, Gertrude; Grande, Jasmin; Borzyszkowska, Miłosława (Eds.) et al Gedächtnistopographien im Grenzraum. Pomorze und Rheinland als trilaterale Kulturräume - Exemplarisch und im Vergleich. (in press)

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See detailDevelopment of a Cued Pro- and Antisaccade Paradigm: An Indirect Measure to Explore Automatic Components of Sexual Interest
Oberlader, Verena A.; Ettinger, Ulrich; Banse, Rainer et al

in Archives of Sexual Behavior (in press)

We developed a cued pro- and antisaccade paradigm (CPAP) to explore automatic components of sexual interest. Heterosexual participants (n = 32 women, n = 25 men) had to perform fast eye movements towards ... [more ▼]

We developed a cued pro- and antisaccade paradigm (CPAP) to explore automatic components of sexual interest. Heterosexual participants (n = 32 women, n = 25 men) had to perform fast eye movements towards and away from sexually relevant or irrelevant stimuli across a congruent (i.e. prosaccade towards sexually relevant stimuli, antisaccade away from sexually irrelevant stimuli) and an incongruent condition (i.e. prosaccade towards sexually irrelevant stimuli, antisaccade away from sexually relevant stimuli). We hypothesized that pro- and antisaccade performance would be influenced by the sexual interest-specific relevance of the presented stimulus (i.e., nude female or male stimulus) and the instructed task (i.e., pro- or antisaccade) and, thus, differ meaningfully between conditions. Results for prosaccades towards sexually relevant stimuli in the congruent condition showed that error rates were lower and latencies were shorter compared with prosaccades towards sexually irrelevant stimuli in the incongruent condition, but only for male participants. In addition, error rates for antisaccades away from sexually irrelevant stimuli in the congruent condition were lower than for antisaccades away from sexually relevant stimuli in the incongruent condition, for both female and male participants. Latencies of antisaccades, however, did not differ between conditions. In comparison with established indirect sexual interest paradigms, the CPAP benefits from measuring highly automated processes less prone to deliberate control. To this end, the CPAP could be applied to explore the interplay of early automatic and deliberate components of sexual information processing. [less ▲]

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See detailLe comté/duché de Luxembourg et la guerre de Cent Ans
Genot, Gilles UL

in Moeglin, Jean-Marie (Ed.) Dictionnaire Guerre de Cent Ans (in press)

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See detailFamily income and material deprivation: do they matter for sleep quality and quantity in early life? Evidence from a longitudinal study.
Barazzetta, Marta UL; Ghislandi, Simone

in Sleep (in press)

Study Objectives: The aim of the present paper is to investigate the determinants of sleeping patterns in children up to age 9 on a large and geographically homogeneous sample of British children and ... [more ▼]

Study Objectives: The aim of the present paper is to investigate the determinants of sleeping patterns in children up to age 9 on a large and geographically homogeneous sample of British children and parents, focusing in particular on the role of economic and social factors, specifically on income. Methods: The data of this study come from the Avon Longitudinal Study of Parents and Children, a long-term health research project that recruited over 14,000 pregnant women who were due to give birth between April 1991 and December 1992 in Bristol and its surrounding areas, including some of Somerset and Gloucestershire. Logistic regression models for the sleep problems dummies and log-linear models for the sleep quantity. Results: One additional item in the material deprivation index is associated to an increase of around 10% to 20% in the odds of having at least one sleep problem. Similarly, children from the richest families are less likely to have any sleep problem up to 115 months (around 20% reduction in the odds). Mother’s characteristics (i.e. education and mental health in the pregnancy period) are also significant predictors. Sleep quantity does not vary much and is not sensitive to socioeconomic factors. Conclusion: Exposure to income-related inequalities affects child sleep. Further research is needed in order to understand if sleep in early life influence future health and economic trajectories. [less ▲]

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See detailDispositions for collaborative problem solving.
Scalise, Kathleen; Mustafic, Maida UL; Greiff, Samuel UL

in Kuger, Susanne; Klieme, Eckhard; Jude, Nina (Eds.) et al Assessing context of learning world-wide (in press)

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See detailPension Insecurity and Wellbeing in Europe
Olivera, Javier; Ponomarenko, Valentina UL

in Journal of Social Policy (in press)

This paper studies pension insecurity in a sample of non-retired individuals aged 50 years or older from 18 European countries. We capture pension insecurity with the subjective expectations on the ... [more ▼]

This paper studies pension insecurity in a sample of non-retired individuals aged 50 years or older from 18 European countries. We capture pension insecurity with the subjective expectations on the probability that the government will reduce the pensions of the individual before retirement or will increase the statutory retirement age. We argue that changes in economic conditions and policy affect the formation of such probabilities, and through this, subjective wellbeing. In particular, we study the effects of pension insecurity on subjective wellbeing with pooled linear models, regressions per quintiles and instrumental variables. We find a statistically significant, stable and negative association between pension insecurity and subjective wellbeing. Our findings reveal that the individuals who are more affected by pension insecurity are those who are further away fromtheir retirement, have lower income, assess their life survival as low, have higher cognitive abilities and do not expect private pension payments. [less ▲]

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See detailOn the comprehensibility and perceived privacy protection of indirect questioning techniques
Hoffmann, Adrian; Waubert de Puiseau, Berenike; Schmidt, Alexander F. UL et al

in Behavior Research Methods (in press)

On surveys that assess sensitive personal attributes, indirect questioning aims at increasing respondents’ willingness to answer truthfully by protecting confidentiality. However, the assumption that ... [more ▼]

On surveys that assess sensitive personal attributes, indirect questioning aims at increasing respondents’ willingness to answer truthfully by protecting confidentiality. However, the assumption that subjects understand questioning procedures fully and trust them to protect their privacy is tested rarely. In a scenario-based design, we compared four indirect questioning procedures in terms of comprehensibility and perceived privacy protection. All indirect questioning techniques were found less comprehensible for respondents than a conventional direct question used for comparison. Less-educated respondents experienced more difficulties when confronted with any indirect questioning technique. Regardless of education, the Crosswise Model was found most comprehensible among the four indirect methods. Indirect questioning was perceived to increase privacy protection in comparison to a direct question. Unexpectedly, comprehension and perceived privacy protection did not correlate. We recommend assessing these factors separately in future evaluations of indirect questioning. [less ▲]

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See detailReconceptualizing the Multilingual Child: Curriculum Construction in Luxembourg
Sattler, Sabrina UL

in Roberts, Philip; Brennan, Marie; Green, Bill (Eds.) Curriculum Challenges and Opportunities in a Changing World (in press)

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See detailFinite-Time Attitude Synchronization with Distributed Discontinuous Protocols
Wei, Jieqiang; Zhang, Silun; Adaldo, Antonio et al

in IEEE Transactions on Automatic Control (in press)

The finite-time attitude synchronization problem is considered in this paper, where the rotation of each rigid body is expressed using the axis-angle representation. Two discontinuous and distributed ... [more ▼]

The finite-time attitude synchronization problem is considered in this paper, where the rotation of each rigid body is expressed using the axis-angle representation. Two discontinuous and distributed controllers using the vectorized signum function are proposed, which guarantee almost global and local convergence, respectively. Filippov solutions and non-smooth analysis techniques are adopted to handle the discontinuities. Sufficient conditions are provided to guarantee finite-time convergence and boundedness of the solutions. Simulation examples are provided to verify the performances of the control protocols designed in this paper. [less ▲]

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See detailSupporting DNN Safety Analysis and Retraining through Heatmap-based Unsupervised Learning
Fahmy, Hazem UL; Pastore, Fabrizio UL; Bagherzadeh, Mojtaba et al

in IEEE Transactions on Reliability (in press)

Deep neural networks (DNNs) are increasingly im- portant in safety-critical systems, for example in their perception layer to analyze images. Unfortunately, there is a lack of methods to ensure the ... [more ▼]

Deep neural networks (DNNs) are increasingly im- portant in safety-critical systems, for example in their perception layer to analyze images. Unfortunately, there is a lack of methods to ensure the functional safety of DNN-based components. We observe three major challenges with existing practices regarding DNNs in safety-critical systems: (1) scenarios that are underrepresented in the test set may lead to serious safety violation risks, but may, however, remain unnoticed; (2) char- acterizing such high-risk scenarios is critical for safety analysis; (3) retraining DNNs to address these risks is poorly supported when causes of violations are difficult to determine. To address these problems in the context of DNNs analyzing images, we propose HUDD, an approach that automatically supports the identification of root causes for DNN errors. HUDD identifies root causes by applying a clustering algorithm to heatmaps capturing the relevance of every DNN neuron on the DNN outcome. Also, HUDD retrains DNNs with images that are automatically selected based on their relatedness to the identified image clusters. We evaluated HUDD with DNNs from the automotive domain. HUDD was able to identify all the distinct root causes of DNN errors, thus supporting safety analysis. Also, our retraining approach has shown to be more effective at improving DNN accuracy than existing approaches. [less ▲]

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See detailFörderung von Deutsch als Fremd- und Amtssprache in den Benelux-Staaten
Leuschner, Torsten; Radke, Henning; Küpper, Achim UL

in Ammon, Ulrich (Ed.) Förderung von Deutsch weltweit. (in press)

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See detailA Methodology for Handling Data Movements by Anticipation: Position Paper
Bleuse, Raphaël UL; Lucarelli, Giorgio; Trystram, Denis

in Euro-Par 2018 Workshops (in press)

The enhanced capabilities of large scale parallel and distributed platforms produce a continuously increasing amount of data which have to be stored, exchanged and used by various tasks allocated on ... [more ▼]

The enhanced capabilities of large scale parallel and distributed platforms produce a continuously increasing amount of data which have to be stored, exchanged and used by various tasks allocated on different nodes of the system. The management of such a huge communication demand is crucial for reaching the best possible performance of the system. Meanwhile, we have to deal with more interferences as the trend is to use a single all-purpose interconnection network whatever the interconnect (tree-based hierarchies or topology-based heterarchies). There are two different types of communications, namely, the flows induced by data exchanges during the computations, and the flows related to Input/Output operations. We propose in this paper a general model for interference-aware scheduling, where explicit communications are replaced by external topological constraints. Specifically, the interferences of both communication types are reduced by adding geometric constraints on the allocation of tasks into machines. The proposed constraints reduce implicitly the data movements by restricting the set of possible allocations for each task. This methodology has been proved to be efficient in a recent study for a restricted interconnection network (a line/ring of processors which is an intermediate between a tree and higher dimensions grids/torus). The obtained results illustrated well the difficulty of the problem even on simple topologies, but also provided a pragmatic greedy solution, which was assessed to be efficient by simulations. We are currently extending this solution for more complex topologies. This work is a position paper which describes the methodology, it does not focus on the solving part. [less ▲]

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See detailBook review: Bessey, Valérie et Werner Paravicini: Guerre des manifestes : Charles le Téméraire et ses ennemis (1465-1475)
Genot, Gilles UL

in Hemecht: Zeitschrift für Luxemburger Geschichte (in press)

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See detailAutobiografia ed emigrazione. Ricordare, raccontare, costruire
Cicotti, Claudio UL

Book published by Lang (in press)

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See detailConcentration bounds for geometric Poisson functionals: logarithmic Sobolev inequalities revisited
Peccati, Giovanni UL; Bachmann, Sascha

in Electronic Journal of Probability (in press)

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See detailPrimauté et droits fondamentaux: une question de compétences?
Neframi, Eleftheria UL

in Gaudin, Hélène (Ed.) Primauté et clause la plus protectrice: le renouveau des droits fondamentaux en Europe (in press)

Dans le rapport entre le principe de primauté et la protection des droits fondamentaux la question de la répartition des compétences ne semble pas, à première vue, se poser : la primauté nous place dans ... [more ▼]

Dans le rapport entre le principe de primauté et la protection des droits fondamentaux la question de la répartition des compétences ne semble pas, à première vue, se poser : la primauté nous place dans la sphère de compétence de l’Union, alors que la protection des droits fondamentaux, comme contestation de la primauté, relève de la sphère nationale. Le conflit entre primauté et droits fondamentaux relève ainsi du rapport des ordres juridiques et est résolu par leur interaction, exprimée dans la balance entre le principe de coopération loyale et la prise en compte des intérêts nationaux, sur la base du respect de l’identité nationale ou en invoquant l’article 53 de la Charte . En ce sens, la problématique des compétences n’entre pas en ligne de compte. Cependant, l’élaboration de standards européens de protection des droits fondamentaux, en tant qu’objet direct ou indirect de l’exercice des compétences de l’Union, peut servir le compromis issu du principe d’attribution. Ainsi, primauté et droits fondamentaux peuvent être abordés sous l’angle des compétences. Le rapport entre primauté et droits fondamentaux n’est toutefois pas forcément conflictuel. La Charte est source d’obligations pour les Etats membres au-delà du champ couvert par l’exercice des compétences de l’Union. Il est bien établi que la notion de mise en œuvre du droit de l’Union en tant que condition de l’application de la Charte à l’égard des Etats membres, est entendue dans le sens du domaine couvert par le droit de l’Union. Ainsi, les standards européens de protection sont eux-mêmes couverts par la primauté et interviennent dans l’encadrement de l’autonomie nationale et l’articulation des compétences [less ▲]

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See detailCan the Plight of the European Banking Structural Reforms be a Blessing in Disguise?
Nabilou, Hossein UL

in European Business Organization Law Review (in press)

One of the problems perceived to be at the heart of the global financial crisis was an amalgamation of various commercial and investment banking activities under one entity, as well as the ... [more ▼]

One of the problems perceived to be at the heart of the global financial crisis was an amalgamation of various commercial and investment banking activities under one entity, as well as the interconnectedness of the banking entities with other financial institutions, investment funds, and the shadow banking system. This paper focuses on various measures that aim to structurally separate the banking entities and their core functions from riskier financial activities such as (proprietary) trading or investments in alternative investment funds. Although banking structural reforms in the EU, UK, and the US have taken different forms, their common denominator is the separation of core banking functions from certain trading or securities market activities. Having reviewed the arguments for and against banking structural reforms and their varieties in major jurisdictions, including the EU, UK, US, France, and Germany, the paper argues that a more nuanced approach to introducing such measures at the EU level is warranted. Given the different market structures across the Atlantic and the lack of conclusive evidence on the beneficial impact of banking structural reforms, the paper concludes that the withdrawal of the banking structural reforms proposal by the European Commission has been a prudent move. It seems that in the absence of concrete evidence, experimenting with structural reforms at the Member-State level would be less costly and would provide for opportunities for learning from smaller mistakes that could pave the way for a more optimal approach to introducing banking structural reforms at the European level in the future. [less ▲]

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See detailA Generic Approach for Solving Nonlinear-Discrete Security-Constrained Optimal Power Flow Problems in Large-Scale Systems
Platbrood, Ludovic; Capitanescu, Florin UL; Merckx, Christian et al

in IEEE Transactions on Power Systems (in press)

This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to ... [more ▼]

This paper proves the practicality of an iterative algorithm for solving realistic large-scale SCOPF problems. This algorithm is based on the combination of a contingency filtering scheme, used to identify the binding contingencies at the optimum, and a network compression method, used to reduce the complexity of the post-contingency models included in the SCOPF formulation. We show that by combining these two complementary ideas, it is possible to solve in a reasonable time SCOPF problems on large power system models with a large number of contingencies. Unlike most results reported for large-scale SCOPF problems, our algorithm uses a non-linear AC network model in both pre-contingency and post-contingency states, optimizes both active/reactive powers flows jointly, and treats the discrete variables. The proposed algorithm is implemented with state-of-the-art solvers and applied to two systems: a national grid with 2563 buses and 1297 contingencies, and a model of the European transmission network with 9241 buses and 12000 contingencies. [less ▲]

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