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See detailEquivariant K-homology for hyperbolic reflection groups
Lafont, Jean-Francois; Ortiz, Ivonne; Rahm, Alexander UL et al

in The Quarterly Journal of Mathematics (2018), 69(4), 1475-1505

We compute the equivariant K-homology of the classifying space for proper actions, for cocompact 3-dimensional hyperbolic reflection groups. This coincides with the topological K-theory of the reduced C ... [more ▼]

We compute the equivariant K-homology of the classifying space for proper actions, for cocompact 3-dimensional hyperbolic reflection groups. This coincides with the topological K-theory of the reduced C*-algebra associated to the group, via the Baum-Connes conjecture. We show that, for any such reflection group, the associated K-theory groups are torsion-free. This means that we can complete previous computations with rational coefficients to get results with integral coefficients. On the way, we establish an efficient criterion for checking torsion-freeness of K-theory groups, which can be applied far beyond the scope of the present paper. [less ▲]

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See detailMusikalische Bildung. Deutsche, französische und ungarische Traditionen im Überblick
Sagrillo, Damien UL

in Brusniak, Friedhelm; Sagrillo, Damien (Eds.) Vom ersten Kongress der Gesellschaft für Musikerziehung in Prag 1936 bis 2016 (2018)

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See detailMicrobiome: the environment within
Wilmes, Paul UL

Scientific Conference (2018, December)

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See detailSequential Resource Distribution Technique for Multi-User OFDM-SWIPT based Cooperative Networks
Gautam, Sumit UL; Lagunas, Eva UL; Chatzinotas, Symeon UL et al

Scientific Conference (2018, December)

In this paper, we investigate resource allocation and relay selection in a dual-hop orthogonal frequency division multiplexing (OFDM)-based multi-user network where amplify-and-forward (AF) enabled relays ... [more ▼]

In this paper, we investigate resource allocation and relay selection in a dual-hop orthogonal frequency division multiplexing (OFDM)-based multi-user network where amplify-and-forward (AF) enabled relays facilitate simultaneous wireless information and power transfer (SWIPT) to the end-users. In this context, we address an optimization problem to maximize the end-users’ sum-rate subjected to transmit power and harvested energy constraints. Furthermore, the problem is formulated for both time-switching (TS) and power-splitting (PS) SWIPT schemes.We aim at optimizing the users’ SWIPT splitting factors as well as sub-carrier–destination assignment, sub-carrier pairing, and relay–destination coupling metrics. This kind of joint evaluation is combinatorial in nature with non-linear structure involving mixed-integer programming. In this vein, we propose a sub-optimal low complex sequential resource distribution (SRD) method to solve the aforementioned problem. The performance of the proposed SRD technique is compared with a semi-random resource allocation and relay selection approach. Simulation results reveal the benefits of the proposed design under several parameter values with various operating conditions to illustrate the efficiency of SWIPT schemes for the proposed techniques. [less ▲]

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See detailFriend or Foe? Portraying the German Occupier in Luxembourg (1914-1918).
Camarda, Sandra UL

in Mutations. Mémoires et Perspectives du Bassin Minier (2018), (10), 161-167

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See detailHenri Hellenbrand: un Luxembourgeois anonyme dans les rangs de la Légion étrangère
Sauer, Arnaud UL

in Être d'ailleurs en temps de guerre (1914-1918). Étrangers à Dudelange, Dudelangeois à l'étranger (2018)

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See detailKnowledge Graph-based Core Concept Identification in Learning Resources
Manrique, Rubén; Grevisse, Christian UL; Mariño, Olga et al

in 8th Joint International Conference, JIST 2018, Awaji, Japan, November 26–28, 2018, Proceedings (2018, December)

The automatic identification of core concepts addressed by a learning resource is an important task in favor of organizing content for educational purposes and for the next generation of learner support ... [more ▼]

The automatic identification of core concepts addressed by a learning resource is an important task in favor of organizing content for educational purposes and for the next generation of learner support systems. We present a set of strategies for core concept identification on the basis of a semantic representation built using the open and available knowledge in the so-called Knowledge Graphs (KGs). Different unsupervised weighting strategies, as well as a supervised method that operates on the semantic representation, were implemented for core concept identification. In order to test the effectiveness of the proposed strategies, a human-expert annotated dataset of 96 learning resources extracted from MOOCs was built. In our experiments, we show the capacity of the semantic representation for the core-concept identification task as well as the superiority of the supervised method. [less ▲]

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See detailLiterary Histories, National Literatures, and Early Conceptions of World Literature in the Athenaeum, 1833-1838.
Millim, Anne-Marie UL

in Yearbook of English Studies (2018), 48

The reign of William IV represents a period concerned with questions of national identity, not only in a national context, but also in a global one. Periodicals of the time, such as the Athenaeum, present ... [more ▼]

The reign of William IV represents a period concerned with questions of national identity, not only in a national context, but also in a global one. Periodicals of the time, such as the Athenaeum, present the co-existence of two related, but inherently opposite conceptions of literature and its functions: Goethe’s idea of Weltliteratur is contemporaneous to developments in the formation and consolidation of national literatures, which can be observed to co-exist even in the early nineteenth-century. World literature, as imagined by Goethe in the 1930s, represents a way of circumventing the inward-looking attitude of nationalism, and of prioritising fluidity and flexibility over stability. National literature, as practiced widely during the nineteenth century, represents a way of grounding national genius in literary texts, either by scrutinising only the works of authors of a specific nationality, or by comparing them in a transnational, intercultural perspective. This article investigates two series of articles published almost concurrently in the Athenaeum: ‘A Biographical and Critical History of the Literature of the last Fifty Years’, by Allan Cunningham in 1833, and ‘Literature of the Nineteenth Century’, by diverse authors between 1834 and 1838. This article highlights the co-existence between different authorial focalisations in historicising and historiographing literature, demonstrating the malleability, undecidability, and arbitrariness of dominant models of national literary identities. I argue that during the 1830s, the Athenaeum’s outlook is decidedly cosmopolitan and international as the contributors engage with European literature equally often as they do with British texts. They are also eager to stretch the readers’ awareness beyond the European context, embracing the wealth of ideas, styles, and perspectives as culturally enriching, but not exotic, erudition. [less ▲]

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See detailLes inégalités scolaires dans le système secondaire luxembourgeois dans une perspective dans les temps
Hadjar, Andreas UL; Fischbach, Antoine UL; Backes, Susanne UL

in University of Luxembourg, LUCET; Ministère de l’Éducation nationale, de l’Enfance et de la Jeunesse, SCRIPT (Eds.) Rapport national sur l'éducation au Luxembourg 2018 (2018)

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See detailWriting in the Age of William IV
Millim, Anne-Marie UL; McCue, Maureen; Butler, Rebecca

in Yearbook of English Studies (2018), 48

This volume explores the literary, cultural, social and political climate in Britain during the reign of William IV (1830–37). Rarely discussed by scholars searching to define the ‘Romantic’ period, and ... [more ▼]

This volume explores the literary, cultural, social and political climate in Britain during the reign of William IV (1830–37). Rarely discussed by scholars searching to define the ‘Romantic’ period, and overshadowed by Queen Victoria, William IV’s reign signifies an important moment within the long nineteenth century, one whose literary output is marked by experimentation and generic instability. Rather than simply blurring the boundaries between the Romantic and Victorian periods, this diverse collection of essays demonstrates how the spirit of reform, creative experimentation, and an increasingly politically active middle-class readership produced a peculiar literary and material culture of its own. Responding to a wide range of print culture, including periodicals, albums, graphic satires, novels, poetry, travel writing and guidebooks, by canonical and non-canonical authors, such as Catherine Gore, James Hogg, John Ruskin, Mariana Starke, Thomas Hosmer Shepherd and Thomas Pringle, the essays in this volume map a complex network of conversation, personal and national identities, radical and conservative ideologies, and contested domestic and public spaces, both in Britain and abroad. By addressing various aspects of this remarkable period’s material culture and aesthetic innovations, the essays in this collection complicate our contemporary understanding of the long nineteenth century in Britain and open up new spaces for discussion. [less ▲]

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See detailVom ersten Kongress der Gesellschaft für Musikerziehung in Prag 1936 bis 2016
Sagrillo, Damien UL; Brusniak, Friedhelm

Book published by Margraf (2018)

Vom 18. bis 20. November 2016 fand an der Universität Würzburg in Zusammenarbeit mit der Internationalen Leo-Kestenberg-Gesellschaft (IKG) ein von der Deutschen Forschungsgemeinschaft (DFG) unterstützter ... [more ▼]

Vom 18. bis 20. November 2016 fand an der Universität Würzburg in Zusammenarbeit mit der Internationalen Leo-Kestenberg-Gesellschaft (IKG) ein von der Deutschen Forschungsgemeinschaft (DFG) unterstützter internationaler Kongress zum Thema Vom ersten Internationalen Kongress der Gesellschaft für Musikerziehung in Prag 1936 bis 2016 – Ein Beitrag zum Diskurs über »cultural heritage« statt. Die hier in Auswahl publizierten Vorträge folgen dem Programm des Würzburger Kongresses, an dem Referenten aus Deutschland, Frankreich, Luxemburg, Tschechien und der Schweiz sowie aus Israel und Kanada teilnahmen. Die Autoren der Beiträge für den vorliegenden Band sind Friedhelm Brusniak, Karl Heinrich Ehrenforth, Andreas Eschen, Mechtild Fuchs, Jiřina Jiřičková/Jan Prchal, Helmke Jan Keden, Philip A. Maxwell, Franz Metz, Christoph Richter, Thomas Rösch, Anna-Christine Rhode-Jüchtern, Damien Sagrillo, Dietmar Schenk, Josef Schuster, Pascal Terrien/Angelika Güsewell/Rym Vivien. [less ▲]

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See detailFrench memories about the ARPANET: a conversation with Michel Élie and Gérard Le Lann
Schafer, Valerie UL; Paloque-Bergès, Camille

in Internet Histories: Digital Technology, Culture and Society (2018)

Although the ARPANET was a United States-funded project that was deeply rooted in US post-war science and technology policies, it had an international dimension from its very early days. The memories of ... [more ▼]

Although the ARPANET was a United States-funded project that was deeply rooted in US post-war science and technology policies, it had an international dimension from its very early days. The memories of Michel Elie and Gerard Le Lann are oriented towards their US experience. They testify to an early French presence in the ARPANET project at two stages of its history: in 1969–1970, when the first nodes came into activity, and in 1973–1974, when TCP, which evolved into TCP/IP and became the Internet’s flagship protocol, was defined, replacing NCP, which was at the heart of the ARPANET. They thus highlight crucial but different sides of the ARPANET’s genesis. [less ▲]

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See detailScience and Technology Studies Approaches to Web History
Musiani, Francesca; Schafer, Valerie UL

in Brügger, Niels; Milligan, Ian (Eds.) The SAGE Handbook of Web History FIRST EDITION (2018)

This chapter seeks to show the value of a relational, practice-oriented approach – what in STS vocabulary is called ‘unpacking black boxes’, or doing a sociology ‘of assemblages’. The chapter examines how ... [more ▼]

This chapter seeks to show the value of a relational, practice-oriented approach – what in STS vocabulary is called ‘unpacking black boxes’, or doing a sociology ‘of assemblages’. The chapter examines how this approach can shed light on the hybrid mobilizations of innovators, consumers, users and entrepreneurs – alongside their creations and cultures – that have made the Web the complex socio-technical system it is today. [less ▲]

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See detailInteroperability of EU Databases and Access to Personal Data by National Police Authorities under Article 20 of the Commission Proposals
Quintel, Teresa Alegra UL

in European Data Protection Law Review (2018), 4/2018(4), 470-482

This contribution assesses data protection concerns relating to the processing of personal data carried out pursuant to Article 20 of the interoperability proposals, which were published by the European ... [more ▼]

This contribution assesses data protection concerns relating to the processing of personal data carried out pursuant to Article 20 of the interoperability proposals, which were published by the European Commission on 12 December 2017. The proposals seek to enable all centralised EU databases for security, border and migration management to be interconnected by 2023. Under Article 20 of the proposals, Member States would be permitted to implement national provisions that allow national police authorities to query one of the interoperability components with biometric taken during an identity check. Such queries shall prevent irregular migration and ensure a high level of security within Union. In particular, this article seeks to examine the data protection concerns arising with regard to streamlined law enforcement access to non-law enforcement databases included in the interoperable framework, and addresses risks for individuals to become subject to unfair processing under Article 20 of the interoperability proposal. [less ▲]

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See detailHydroxycoumarin OT-55 kills CML cells alone or in synergy with imatinib or Synribo: Involvement of ER stress and DAMP release
Mazumder, A; Lee, JY; Talhi, O et al

in Cancer Letters (2018)

We synthetized and investigated the anti-leukemic potential of the novel cytostatic bis(4-hydroxycoumarin) derivative OT-55 which complied with the Lipinski's rule of 5 and induced differential toxicity ... [more ▼]

We synthetized and investigated the anti-leukemic potential of the novel cytostatic bis(4-hydroxycoumarin) derivative OT-55 which complied with the Lipinski's rule of 5 and induced differential toxicity in various chronic myeloid leukemia (CML) cell models. OT-55 triggered ER stress leading to canonical, caspase-dependent apoptosis and release of danger associated molecular patterns. Consequently, OT-55 promoted phagocytosis of OT-55-treated CML cells by both murine and human monocyte-derived macrophages. Moreover, OT-55 inhibited tumor necrosis factor α-induced activation of nuclear factor-кB and produced synergistic effects when used in combination with imatinib to inhibit colony formation in vitro and Bcr-Abl+ patient blast xenograft growth in zebrafish. Furthermore, OT-55 synergized with omacetaxine in imatinib-resistant KBM-5 R cells to inhibit the expression of Mcl-1, triggering apoptosis. In imatinib-resistant K562 R cells, OT-55 triggered necrosis and blocked tumor formation in zebrafish in combination with omacetaxine. [less ▲]

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See detailWealth inequality, frailty, and memory impairment: Is wealthier = healthier true at all older ages?
Leist, Anja UL

Scientific Conference (2018, December)

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See detailLa fiducie et la structuration des fonds d'investissement de droit français
Riassetto, Isabelle UL; Storck, Michel

in Mélanges en l'honneur du professeur Claude Witz (2018)

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See detailPhase-field predictive model for setting of fresh self-compacting concrete
Huang, Haiqin UL; Zilian, Andreas UL

in Proceedings in Applied Mathematics and Mechanics (2018), 18(1),

The initial setting of fresh concrete is mainly caused by the dissolution of cement grains and the precipitation of calcium-silicate-hydrates during cement hydration. Progressing hydration drives the ... [more ▼]

The initial setting of fresh concrete is mainly caused by the dissolution of cement grains and the precipitation of calcium-silicate-hydrates during cement hydration. Progressing hydration drives the transition from a dense suspension to a porous solid phase. Fresh mixture of self-compacting concrete (SCC) can be considered as a phase-changing multi-component material and can be described as a continuum at the macro scale, interacting with a set of transport-reaction-diffusion processes which in turn are driven by phenomena at the level of the microstructure. This contribution focuses on a predictive model for the setting of fresh SCC where the liquid-solid phase transition is captured by a phase-field variable using the Ginzburg-Landau type free energy function. Hydration-related chemical reactions together with heat and mass transfer are volume coupled with the mechanical behaviour and determined by the environmental conditions. The weak form of the predictive model is discretised using the finite element method and implemented with the FEniCS computational framework. [less ▲]

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