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See detailStabilizing variable selection and regression
Pfister, Niklas; Williams, Evan UL; Peters, Jonas et al

in Annals of Applied Statistics (2021), 15(3),

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See detailPamphlet". Le qualificatif de la discorde
Saintes, Laetitia UL

in Legoy, Corinne; Déruelle, Aude (Eds.) Les Mots du politique (1815-1848) (2021)

Parmi les termes marquants de la langue politique, celui de « pamphlet » est particulièrement exemplaire de l’énergie polémique du XIXe siècle. Comme le genre qu’il désigne, le terme est avant tout ... [more ▼]

Parmi les termes marquants de la langue politique, celui de « pamphlet » est particulièrement exemplaire de l’énergie polémique du XIXe siècle. Comme le genre qu’il désigne, le terme est avant tout polémique : l’assimilation d’un écrit à un pamphlet, péjorative ou non, n’en est pas moins révélatrice des tensions à l’oeuvre dans le lexique politique de la Restauration. Comment celle-ci entend-elle le terme de « pamphlet » ? Comment s’illustre-t-il dans les champs politique et littéraire ? C’est ce que nous tenterons de déterminer à l’aide des écrits pamphlétaires de Paul-Louis Courier. [less ▲]

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See detailRed blood cell phenotyping from 3D confocal images using artificial neural networks.
Simionato, Greta; Hinkelmann, Konrad; Chachanidze, Revaz et al

in PLoS computational biology (2021), 17(5), 1008934

The investigation of cell shapes mostly relies on the manual classification of 2D images, causing a subjective and time consuming evaluation based on a portion of the cell surface. We present a dual-stage ... [more ▼]

The investigation of cell shapes mostly relies on the manual classification of 2D images, causing a subjective and time consuming evaluation based on a portion of the cell surface. We present a dual-stage neural network architecture for analyzing fine shape details from confocal microscopy recordings in 3D. The system, tested on red blood cells, uses training data from both healthy donors and patients with a congenital blood disease, namely hereditary spherocytosis. Characteristic shape features are revealed from the spherical harmonics spectrum of each cell and are automatically processed to create a reproducible and unbiased shape recognition and classification. The results show the relation between the particular genetic mutation causing the disease and the shape profile. With the obtained 3D phenotypes, we suggest our method for diagnostics and theragnostics of blood diseases. Besides the application employed in this study, our algorithms can be easily adapted for the 3D shape phenotyping of other cell types and extend their use to other applications, such as industrial automated 3D quality control. [less ▲]

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See detailA Declaration of Software Independence
Jamroga, Wojciech UL; Ryan, Peter Y A UL; Schneider, Steve et al

in Protocols, Strands, and Logic - Essays Dedicated to Joshua Guttman on the Occasion of his 66.66th Birthday (2021)

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See detailCrossover between distinct symmetries in solid solutions of rare earth nickelates
Fowlie, Jennifer; Mundet, Bernat; Toulouse, Constance UL et al

in APL MATERIALS (2021), 9(8),

A strong coupling of the lattice to functional properties is observed in many transition metal oxide systems, such as the ABO(3) perovskites. In the quest for tailor-made materials, it is essential to be ... [more ▼]

A strong coupling of the lattice to functional properties is observed in many transition metal oxide systems, such as the ABO(3) perovskites. In the quest for tailor-made materials, it is essential to be able to control the structural properties of the compound(s) of interest. Here thin film solid solutions that combine NdNiO3 and LaNiO3, two materials with the perovskite structure but distinct space groups, are analyzed. Raman spectroscopy and scanning transmission electron microscopy are combined in a synergistic approach to fully determine the mechanism of the structural crossover with chemical composition. It is found that the symmetry transition is achieved by phase coexistence in a way that depends on the substrate selected. These results carry implications for analog-tuning of physical properties in future functional materials based on these compounds. [less ▲]

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See detailThe other model antiferroelectric: PbHfO3 thin films from ALD precursors
Hanrahan, Brendan; Milesi-Brault, Cosme; Leff, Asher et al

in APL MATERIALS (2021), 9(2),

Antiferroelectric PbHfO3 is grown from atomic layer deposition precursors lead bis(dimethylaminomethylpropanolate) and tetrakis dimethylamino hafnium with H2O and O-3 oxidizers in thicknesses from 20 nm ... [more ▼]

Antiferroelectric PbHfO3 is grown from atomic layer deposition precursors lead bis(dimethylaminomethylpropanolate) and tetrakis dimethylamino hafnium with H2O and O-3 oxidizers in thicknesses from 20 nm to 200 nm at a substrate temperature of 250 degrees C. X-ray analysis shows an as-grown crystalline PbO phase that diffuses into an amorphous HfO2 matrix upon annealing to form a randomly oriented, orthorhombic PbHfO3 thin film. Electrical characterization reveals characteristic double hysteresis loops with maximum polarizations of around 30 mu C/cm(2) and transition fields of 350 kV/cm-500 kV/cm depending on the thickness. Temperature-dependent permittivity and polarization testing show a phase transition at 185 degrees C, most probably to the paraelectric phase, but give no clear evidence for the intermediate phase known from bulk PbHfO3. The energy storage density for the films reaches 16 J/cm(3) at 2 MV/cm. A dielectric tunability of 221 is available within 1 V for the thinnest film. These results highlight the unique spectrum of properties available for thin film perovskite antiferroelectrics. [less ▲]

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See detailStrategic Abilities of Asynchronous Agents: Semantic Side Effects
Jamroga, Wojciech UL; Penczek, Wojciech; Sidoruk, Teofil

in Proceedings of AAMAS 2021 (2021)

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See detailVisual Acquaintance, Action and the Explanatory Gap
Raleigh, Thomas UL

in Synthese (2021), 198

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See detailLuxemburger Standarddeutsch. Perspektiven und Herausforderungen für den Luxemburger Bildungssektor
Sieburg, Heinz UL

in Athénée de Luxembourg (Ed.) d’Buch. La communauté scolaire et les savoirs à l’Athénée de Luxembourg (2021)

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See detailHow band tail recombination influences the open-circuit voltage of solar cells.
Wolter, Max UL; Carron, Romain; Avancini, Enrico et al

in Progress in Photovoltaics (2021)

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See detailStrategic Abilities of Asynchronous Agents: Semantic Side Effects and How to Tame Them
Jamroga, Wojciech UL; Penczek, Wojciech; Sidoruk, Teofil

in Proceedings of KR 2021 (2021)

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See detailConvexity of Division Property Transitions: Theory, Algorithms and Compact Models
Udovenko, Aleksei UL

in Wang, Huaxiong; Tibouchi, Mehdi (Eds.) Advances in Cryptology -- ASIACRYPT 2021 (2021)

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See detailFailing forward in Economic and Monetary Union: explaining weak Eurozone financial support mechanisms
Howarth, David UL; Quaglia, Lucia

in Journal of European Public Policy (2021), 28(10), 1555-1572

In this article, we apply the ‘failing forward’ approach to analyse the negotiations on and design of reforms to Eurozone economic governance to tackle the Covid-19-related crisis of Economic and Monetary ... [more ▼]

In this article, we apply the ‘failing forward’ approach to analyse the negotiations on and design of reforms to Eurozone economic governance to tackle the Covid-19-related crisis of Economic and Monetary Union (EMU). This crisis highlights both spill-overs from major asymmetries in EMU and weaknesses in the incomplete economic governance of the Eurozone. We focus on the financial support mechanisms agreed upon after intergovernmental negotiations in major crisis situations. These reforms represent compromise solutions that reflect well-entrenched disagreements among member states. We explain why more far-reaching reforms to Eurozone economic governance – notably, the adoption of mutualized Euro-denominated debt and the generalized use of grants over loans – have not been adopted, despite the severity of the Covid-19-related crisis. These reforms – notably the Next Generation European Union (NGEU) financial package adopted in July 2020 – fail to address and, rather, contribute to existing asymmetries, thus sowing the seeds of future crises. [less ▲]

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See detailStealing Machine Learning Models: Attacks and Countermeasures for Generative Adversarial Networks
Hu, Hailong UL; Pang, Jun UL

in Proceedings of the 37th Annual Computer Security Applications Conference (ACSAC'21) (2021)

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See detailPromoting physical activity for mental health in a refugee camp: the Skaramagas project
Adamakis, Emmanouil UL

in British Journal of Sports Medicine (2021)

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See detailDigital History als ‚experimental space‘: Handels- und Transportnetzwerke in Gallien und Germanien sowie die Transportverbindung zwischen Mosel und Saône
Lotz, Jan Philipp UL

Doctoral thesis (2021)

This dissertation consists of two parts. In the first part, the focus lies on the study of trade and transport networks in the Gaulish and German provinces during the Roman Empire based on inscriptions ... [more ▼]

This dissertation consists of two parts. In the first part, the focus lies on the study of trade and transport networks in the Gaulish and German provinces during the Roman Empire based on inscriptions. Different approaches are used to tackle this topic, e.g. networks between different people and families, organisations and cities. The results show that networks between merchants or merchant families likely existed with the aim of securing and improving one’s own position in the business world. The networks between organisations show the close connection of these organisations among themselves and to the social and political elite. The spatial networks emphasize the important role of Lyon and show long-range connections of the merchants. The second part focuses on the reconstruction of the roman road between upper Saône and Moselle with the help of ancient, medieval and modern sources as well as digital methods like least cost path analysis. The results show that the road between Corre, Escles and Portieux is the most likely candidate, but it is also possible that other options existed. The dissertation is also part of the Doctoral Doctoral Training Unit ‚Digital History & Hermeneutics‘. One of the basic ideas of the DTU was a critical reflection on the epistemological and methodological challenges of doing historical research in the digital age and a critical and self-reflexive use of these new digital tools and technologies. Especially during the first part of the study, it became evident, that the fragmented nature of the sources leads to several problems when using the new digital methods and tools. This applies even more to Ancient History. The dealing with these problems became another important aspect of the dissertation. There is no point in denying the chances the digital turn and that it will change today’s academia landscape. They can be useful in historic research, but at the same time, they are still a journey into the unknown. It is of the utmost importance to keep a critical mindset towards the new developments, methods and tools. Detailed knowledge of the sources and especially their shortcomings is key. This also applies to their communication and to the documentation of the research process since digital methods can quickly produce impressive-looking results. Furthermore, not only methodological knowledge is required but, especially and probably even more importantly, methodological awareness. [less ▲]

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See detailOECD Report : The Missing Entrepreneurs 2021: Policies for Inclusive Entrepreneurship and Self Employment
Fletcher, Denise Elaine UL

Report (2021)

The Missing Entrepreneurs 2021 is the sixth edition in a series of biennial reports that examine how public policies at national, regional and local levels can support job creation, economic growth and ... [more ▼]

The Missing Entrepreneurs 2021 is the sixth edition in a series of biennial reports that examine how public policies at national, regional and local levels can support job creation, economic growth and social inclusion by overcoming obstacles to business start-ups and self-employment by people from disadvantaged or under-represented groups in entrepreneurship. It shows that there are substantial untapped opportunities for entrepreneurship in populations such as women, youth, the unemployed, and immigrants and highlights the need for more differentiated government entrepreneurship policies that respond to the specific barriers they face. The report includes an assessment of the impact of COVID-19 across these populations of entrepreneurs and the effectiveness of the policy response. It also contains thematic policy chapters on microfinance and leveraging the potential of immigrant entrepreneurs. These chapters present the range of current policy actions in EU and OECD countries and make recommendations for future policy directions. Finally, the report contains country profiles for each of the 27 EU Member States that identify for each county the major recent trends in entrepreneurship by women, youth, seniors and immigrants, the key policy issues and the recent policy actions. See section on Luxembourg country profile. [less ▲]

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See detailOngoing sound changes in the Luxembourgish vowel system
Gilles, Peter UL

Poster (2021)

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See detailAST-MTL : An Attention-based Multi- Task Learning Strategy for Traffic Forecasting
Buroni, Giovanni; Lebichot, Bertrand UL; Bontempi, Gianluca

in IEEE Access (2021)

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