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See detailIntroduction
Majerus, Benoît UL; Vandendriesche, Joris

in Majerus, Benoît; Vandendriesche, Joris (Eds.) Medical Histories of Belgium New Narratives on Health, Care and Citizenship in the Nineteenth and Twentieth Centuries (2021)

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See detailSonderpädagogische Fördersysteme und inklusive Bildung
Powell, Justin J W UL; Pfahl, Lisa; Blanck, Jonna M.

in Bittlingmayer, Uwe; Bauer, Ullrich; Scherr, Albert (Eds.) Handbuch Bildungs- und Erziehungssoziologie (2021)

In diesem Beitrag wird aus der Perspektive der Bildungssoziologie ein kritischer Blick auf die sonderpädagogischen Förderschulsysteme, die Sonderpädagogik und die Folgen von Sonderbeschulung für ... [more ▼]

In diesem Beitrag wird aus der Perspektive der Bildungssoziologie ein kritischer Blick auf die sonderpädagogischen Förderschulsysteme, die Sonderpädagogik und die Folgen von Sonderbeschulung für Schülergruppen mit Behinderungen und Benachteiligungen entwickelt. Dazu werden Kennzeichen sonderpädagogischer Förderung zusammengefasst und in historischer Perspektive wichtige Entwicklungen sonderpädagogischer Fördersysteme nachgezeichnet. Hierzu werden Ergebnisse ländervergleichender Studien dargestellt sowie Erkenntnisse macht- und diskursanalytischer Forschung zur Sonderpädagogik präsentiert, die die Persistenz schulischer Segregation erklären. Abschließend wird eine lebensverlaufs- bzw. biografieanalytische Perspektive auf die Folgen schulischer Segregation eingenommen und ein Fazit gezogen. [less ▲]

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See detailBeyond boundaries: histories of dis/order and dis/ability
Majerus, Benoît UL; Verstraete, Pieter

in Majerus, Benoît; Vandendriesche, Joris (Eds.) Medical Histories of Belgium New Narratives on Health, Care and Citizenship in the Nineteenth and Twentieth Centuries (2021)

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See detailPrecoding-Aided Bandwidth Optimization for High Throughput Satellite Systems
Abdu, Tedros Salih UL; Lei, Lei UL; Kisseleff, Steven UL et al

Scientific Conference (2021)

Linear precoding boosts the spectral efficiency of the satellite system by mitigating the interference signal. Typically, all users are precoded and share the same bandwidth regardless of the user demand ... [more ▼]

Linear precoding boosts the spectral efficiency of the satellite system by mitigating the interference signal. Typically, all users are precoded and share the same bandwidth regardless of the user demand. This bandwidth utilization is not efficient since the user demand permanently varies. Hence, demand-aware bandwidth allocation with linear precoding is promising. In this paper, we exploited the synergy of linear precoding and flexible bandwidth allocation for geostationary (GEO) high throughput satellite systems. We formulate an optimization problem with the goal to satisfy the demand by taking into account that multiple precoded user groups can share the different bandwidth chunks. Hence, optimal beam groups are selected with minimum bandwidth requirement to match the per beam demand. The simulation results show that the proposed method of combining bandwidth allocation and linear precoding has better bandwidth efficiency and demand satisfaction than benchmark schemes. [less ▲]

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See detailMagneto-optical activity in nonmagnetic hyperbolic nanoparticles
Kuttruff, Joel; Gabbani, Alessio; Petrucci, Gaia et al

in Physical Review Letters (2021), 127

Active nanophotonics can be realized by controlling the optical properties of materials with external magnetic fields. Here, we explore the influence of optical anisotropy on the magneto-optical activity ... [more ▼]

Active nanophotonics can be realized by controlling the optical properties of materials with external magnetic fields. Here, we explore the influence of optical anisotropy on the magneto-optical activity in non-magnetic hyperbolic nanoparticles. We demonstrate that the magneto-optical response is driven by fundamental electric and magnetic dipole modes induced by the hyperbolic dispersion. Magnetic circular dichroism experiments confirm the theoretical predictions and reveal tunable magneto-optical activity across the visible and near infrared spectral range. [less ▲]

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See detailCross-border vocational training as processes of cross-border learning
Funk, Ines; Nienaber, Birte UL; Dörrenbächer, H. Peter

in Europa Regional (2021), 26(4), 17-30

In recent years cross-border vocational educational training (VET) in cross-border regions has gained more and more importance. The overall research question is how regional learning processes are shaped ... [more ▼]

In recent years cross-border vocational educational training (VET) in cross-border regions has gained more and more importance. The overall research question is how regional learning processes are shaped by bilateral cross-border formal learning agreements in a border region. Therefore, we build our own model of regional learning in border regions on WELLBROCK et al. (2012) following an integrated conceptual perspective and focusing on the actor’s perspective. The development of this transboundary VET by a variety of actors can be considered to form an intra- und interregional learning process. The interpretation of the structures regarding the conceptual findings reveals that the learning processes in the Saarland-Lorraine border region are dynamic and depend on key actors with expert knowledge as well as advantageous regional characteristics. [less ▲]

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See detailEntre mode et religion, un corps à corps riche de sens
Roelens, Nathalie UL

in The Conversation (2021)

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See detailConstitutive Powers of Executive Bodies: a Functional Analysis of the Single Resolution Board
Mendes, Joana UL

in Modern Law Review (2021), 84(6), 13301359

Executive bodies can acquire constitutive powers,even if subject to detailed substantive strictures. Constitutive powers give executive bodies the possibility to transform normative understandings of the ... [more ▼]

Executive bodies can acquire constitutive powers,even if subject to detailed substantive strictures. Constitutive powers give executive bodies the possibility to transform normative understandings of the meaning of norms and of the goals of public action into legal forms. These bodies thus engage in a jurisgenerative process that enables them to progressively delimit their legal mandates in reaction to socio-economic and political realities. The article illustrates this argument by examining the power of the EU Single Resolution Board (SRB) to determine the resolution of a bank in crisis. It concludes that, in view of constitutive powers, the normative demands that the EU legal system places on executive and administrative bodies must be reconsidered. On that basis and to that effect, mechanisms of accountability should be reconceptualised and reoriented. [less ▲]

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See detailLa pratique luxembourgeoise en matière de droit international public 2019
Kinsch, Patrick UL; Friden, Georges

in Annales de droit luxembourgeois (2021), 30

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See detailOptimizing pressure-driven pulsatile flows in microfluidic devices.
Recktenwald, Steffen M.; Wagner, Christian UL; John, Thomas

in Lab on a chip (2021), 21(13), 2605-2613

Unsteady and pulsatile flows receive increasing attention due to their potential to enhance various microscale processes. Further, they possess significant relevance for microfluidic studies under ... [more ▼]

Unsteady and pulsatile flows receive increasing attention due to their potential to enhance various microscale processes. Further, they possess significant relevance for microfluidic studies under physiological flow conditions. However, generating a precise time-dependent flow field with commercial, pneumatically operated pressure controllers remains challenging and can lead to significant deviations from the desired waveform. In this study, we present a method to correct such deviations and thus optimize pulsatile flows in microfluidic experiments using two commercial pressure pumps. Therefore, we first analyze the linear response of the systems to a sinusoidal pressure input, which allows us to predict the time-dependent pressure output for arbitrary pulsatile input signals. Second, we explain how to derive an adapted input signal, which significantly reduces deviations between the desired and actual output pressure signals of various waveforms. We demonstrate that this adapted pressure input leads to an enhancement of the time-dependent flow of red blood cells in microchannels. The presented method does not rely on any hardware modifications and can be easily implemented in standard pressure-driven microfluidic setups to generate accurate pulsatile flows with arbitrary waveforms. [less ▲]

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See detailRosy or blue? Change in recall bias of students’ affective experiences during early adolescence
Zurbriggen, Carmen UL; Jendryczko, David; Nussbeck, Fridtjof W.

in Emotion (2021)

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See detailLiving Wage: Regulatory Solutions to Informal and Precarious Work in Global Supply Chains
Garcia Munoz Alhambra, Manuel Antonio UL

in Australian Journal of Labour Law (2021), (3), 235-241

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See detailInklusives Klassenklima
Knickenberg, Margarita; Stöcker, Anne UL; Zurbriggen, Carmen UL

in Resch, Katharina; Lindner, Katharina-Theresa; Streese, Bettina (Eds.) et al Inklusive Schulentwicklung (2021)

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See detailChanges in prevalence of cognitive impairment and associated risk factors 2000–2015 in São Paulo, Brazil
Ribeiro, Fabiana UL; Duarte, Yeda Aparecida de Oliveira; Santos, Jair Lício Ferreira et al

in BMC Geriatrics (2021)

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See detailLocalization System for Lightweight Unmanned Aerial Vehicles in Inspection Tasks
Benjumea, Diego; Alcántara, Alfonso; Ramos, Agustin et al

in Sensors (2021), 21(17 5937),

This paper presents a localization system for Unmanned Aerial Vehicles (UAVs) especially designed to be used in infrastructure inspection, where the UAVs have to fly in challenging conditions, such as ... [more ▼]

This paper presents a localization system for Unmanned Aerial Vehicles (UAVs) especially designed to be used in infrastructure inspection, where the UAVs have to fly in challenging conditions, such as relatively high altitude (e.g., 15 m), eventually with poor or absent GNSS (Global Navigation Satellite System) signal reception, or the need for a BVLOS (Beyond Visual Line of Sight) operation in some periods. In addition, these infrastructure inspection applications impose the following requirements for the localization system: defect traceability, accuracy, reliability, and fault tolerance. Our system proposes a lightweight solution combining multiple stereo cameras with a robotic total station to comply with these requirements, providing full-state estimation (i.e., position, orientation, and linear and angular velocities) in a fixed and time-persistent reference frame. Moreover, the system can align and fuse all sensor measurements in real-time at high frequency. We have integrated this localization system in our aerial platform, and we have tested its performance for inspection in a real-world viaduct scenario, where the UAV has to operate with poor or absent GNSS signal at high altitude. [less ▲]

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See detailEfficient and Transferable Adversarial Examples from Bayesian Neural Networks
Gubri, Martin UL; Cordy, Maxime UL; Papadakis, Mike UL et al

E-print/Working paper (2021)

An established way to improve the transferability of black-box evasion attacks is to craft the adversarial examples on a surrogate ensemble model to increase diversity. We argue that transferability is ... [more ▼]

An established way to improve the transferability of black-box evasion attacks is to craft the adversarial examples on a surrogate ensemble model to increase diversity. We argue that transferability is fundamentally related to epistemic uncertainty. Based on a state-of-the-art Bayesian Deep Learning technique, we propose a new method to efficiently build a surrogate by sampling approximately from the posterior distribution of neural network weights, which represents the belief about the value of each parameter. Our extensive experiments on ImageNet and CIFAR-10 show that our approach improves the transfer rates of four state-of-the-art attacks significantly (up to 62.1 percentage points), in both intra-architecture and inter-architecture cases. On ImageNet, our approach can reach 94% of transfer rate while reducing training computations from 11.6 to 2.4 exaflops, compared to an ensemble of independently trained DNNs. Our vanilla surrogate achieves 87.5% of the time higher transferability than 3 test-time techniques designed for this purpose. Our work demonstrates that the way to train a surrogate has been overlooked although it is an important element of transfer-based attacks. We are, therefore, the first to review the effectiveness of several training methods in increasing transferability. We provide new directions to better understand the transferability phenomenon and offer a simple but strong baseline for future work. [less ▲]

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See detailIn Vitro Red Blood Cell Segregation in Sickle Cell Anemia
Claveria, Viviana; Connes, Philippe; Lanotte, Luca et al

in FRONTIERS IN PHYSICS (2021), 9

Red blood cells in sickle cell anemia (sRBC) are more heterogeneous in their physical properties than healthy red blood cells, spanning adhesiveness, rigidity, density, size, and shape. sRBC with ... [more ▼]

Red blood cells in sickle cell anemia (sRBC) are more heterogeneous in their physical properties than healthy red blood cells, spanning adhesiveness, rigidity, density, size, and shape. sRBC with increased adhesiveness to the vascular wall would trigger vaso-occlusive like complications, a hallmark of sickle cell anemia. We investigated whether segregation occurs among sRBC flowing in micron-sized channels and tested the impact of aggregation on segregation. Two populations of sRBC of different densities were separated, labeled, and mixed again. The mixed suspension was flowed within glass capillary tubes at different pressure-drops, hematocrit, and suspending media that promoted or not cell aggregation. Observations were made at a fixed channel position. The mean flow velocity was obtained by using the cells as tracking particles, and the cell depleted layer (CDL) by measuring the distance from the cell core border to the channel wall. The labeled sRBC were identified by stopping the flow and scanning the cells within the channel section. The tube hematocrit was estimated from the number of fluorescence cells identified in the field of view. In non-aggregating media, our results showed a heterogeneous distribution of sRBC according to their density: low-density sRBC population remained closer to the center of the channel, while the densest cells segregated towards the walls. There was no impact of the mean flow velocity and little impact of hematocrit. This segregation heterogeneity could influence the ability of sRBC to adhere to the vascular wall and slow down blood flow. However, promoting aggregation inhibited segregation while CDL thickness was enhanced by aggregation, highlighting a potential protective role against vaso-occlusion in patients with sickle cell anemia. [less ▲]

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See detailAnterior cingulate cortex activity during rest is related to alterations in pain perception in aging
Terrasa, Juan L.; Montoya, Pedro; Sitges, Carolina et al

in Frontiers in Aging Neuroscience (2021)

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See detailThe Dialectic of Transnational Integration and National Disintegration as Challenge for Multilevel Governance
Decieux, Jean Philippe Pierre UL

in Social Sciences (2021), 20(7),

A large number of studies have detected that within the EU multilevel governance there is a transformation toward a hybrid knowledge co-production that overcomes traditional categories such as locality or ... [more ▼]

A large number of studies have detected that within the EU multilevel governance there is a transformation toward a hybrid knowledge co-production that overcomes traditional categories such as locality or embeddedness. There, a sort of sustainable decision-making knowledge is co-developed and theoretically supposed to be applied top-down on the national level of EU member states. However, in practice such processes of unification are always associated with a risk of limited compliance with specific national situations and with a specific national “world of relevancies”. Despite the rise in popularity of these top-down initiatives within international policy levels, there is a lack of studies that empirically analyze how national policy systems respond to these global standardization approaches. Therefore, the central aim of this study is twofold: Based on an exemplary case of an international information system co-produced by an expert group of the European Commission, it first reconstructs whether and how transnational information is integrated on the national policy level. Second, it elucidates factors limiting an application. The results show that this international knowledge system was used for basal purposes and was mainly challenged by non-compliance with national specificities and the existence of alternative knowledge sources. [less ▲]

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