References of "2018"
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See detailDoing Digital Hermeneutics in an Interdisciplinary Setting
van der Heijden, Tim UL

Scientific Conference (2018, October 25)

This contribution examines the conference theme from the perspective of the Doctoral Training Unit (DTU) in ‘Digital History and Hermeneutics’, a four-year interdisciplinary research and training program ... [more ▼]

This contribution examines the conference theme from the perspective of the Doctoral Training Unit (DTU) in ‘Digital History and Hermeneutics’, a four-year interdisciplinary research and training program funded by the Luxembourg National Research Fund (FNR) and hosted by the Centre for Contemporary and Digital History (C2DH) at the University of Luxembourg. The DTU is designed as an experimental platform for collaboration, in which thirteen doctoral candidates with different disciplinary backgrounds – from history, linguistics and philosophy to computer and information science – study and reflect on the epistemological and methodological implications of the ‘digital turn’ on historical research. The presentation takes a look back at the project’s first year, in which the doctoral candidates were introduced to various skills and methods in digital humanities, including text mining, digital source criticism, database structures, data visualization, GIS analysis, tool criticism and algorithmic critique. Based on experiences by the doctoral students themselves as reflected in semi-structured interviews, as well as drawing upon studies in interdisciplinarity, digital humanities, and the role of space(s) in scientific collaborations, the possibilities and challenges will be explored of doing digital history and hermeneutics in an interdisciplinary setting. [less ▲]

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See detailPrésences de souverains dans l'espace du "regnum Lotharii": Itinéraires, lieux de pouvoir et fidélités "Lotharingiennes" (869-936)
Pettiau, Hérold UL

in Pettiau, Hérold; Margue, Michel (Eds.) La Lotharingie en question. Identités, oppositions, intégration. LOtharingische Identitäten im Spannungsfeld zwischen integrativen und partikularen Kräften. Actes des 14es Journées Lotharingiennes (2018, October 25)

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See detailDe la "grande" à la "petite" histoire. Les chartes des souverains de la Maison de Luxembourg pour le convent de Marienthal
Pettiau, Hérold UL

Article for general public (2018)

This article aime at a general audience, presents three charters held in the National Archive in Luxembourg, in the Fonds Weimar. Commenting on several features, it provides a context to the writing of ... [more ▼]

This article aime at a general audience, presents three charters held in the National Archive in Luxembourg, in the Fonds Weimar. Commenting on several features, it provides a context to the writing of these three charters and illustrantes the involvement of high ranking aristocrate (indeed, sovereigns), in the affairs of a small convent. This article was written as part of a series of short pièces on the occasion of the XXth Journées Lotharingiennes, an international conference held from 24 to 26 October at the University of Luxembourg, on the topic "Re-reading the history of territorial principalities". [less ▲]

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See detailInterfacing counterculture and digital cultures: an interview with Geert Lovink
Schafer, Valerie UL

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

The famous Dutch media theorist and net activist Geert Lovink stood at the crossroads of several players and stages of cyberculture in the 90s, trying to assemble a disparate crowd of media activists and ... [more ▼]

The famous Dutch media theorist and net activist Geert Lovink stood at the crossroads of several players and stages of cyberculture in the 90s, trying to assemble a disparate crowd of media activists and media artists, programmers, designers, cultural producers and researchers. In this interview he looks back at his involvement in Mediamatic magazine from 1989 till 1994, the co-creation of the community access network De Digitale Stad Amsterdam,which started in 1994 as a freenet initiative in Amsterdam and the nettime email list in 1995. He also discusses the spirit of the 90s decade and the role of counter-cultural movements in the genesis and development of digital cultures. [less ▲]

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See detailLi-Yau Harnack Estimates for a Heat-Type Equation Under the Geometric Flow
Li, Yi UL; Zhu, Xiaorui

in Potential Analysis (2018)

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See detailImplementing Transparency
Bunout, Estelle UL; During, Marten UL

Presentation (2018, October 25)

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See detailDynamic interplay of language policy, beliefs and pedagogy in a nursery class in Luxembourg
Kirsch, Claudine UL

in Language and Education (2018), 32(5), 444-461

This presentation focuses on the relationship between the language policy, language ideologies and language practices in a nursery class in trilingual Luxembourg. Individual multilingualism is an ... [more ▼]

This presentation focuses on the relationship between the language policy, language ideologies and language practices in a nursery class in trilingual Luxembourg. Individual multilingualism is an educational goal in Luxembourg, a small country in central Europe, and, thus, children learn Luxembourgish from the compulsory nursery school, become literate in German in Year 1 and learn oral and written French from Year 2 and Year 3, respectively. Currently, 62.4% of the children do not speak Luxembourgish on school entry (MENJE 2016). Many speak Portuguese, French or a language of the Balkans. As a result, educational policies focus on the teaching of Luxembourgish from preschool, sometimes at the expense of other languages. Gretsch and Kirsch (2015) developed the app iTEO in order to promote innovative teaching methods that capitalize on the children’s diverse language resources and that promote a dynamic view of bilingualism. This ipad app, which allows for the recording and editing of oral speech, was designed with social-constructivist theories and Bakhtin’s theory of dialogism in mind. This case-study presents the ways in which a preschool teacher’s ideological beliefs influence a child’s language use over a period of two years leading to the child’s understanding of the legitimacy of translanguaging. The focus lies on the interplay between the educational policy focusing on the teaching of Luxembourgish, the teacher’s language ideologies rooted in her multilingual identity and in societal multilingualism, and the child’s experiences of separating languages at home (Kirsch, 2014). The data stem from a qualitative, longitudinal study using a multi-method approach. The study shows that dialogue between teachers, parents, children, policy-makers and researchers can contribute to shifting ideologies and to opening up dynamic languaging spaces. [less ▲]

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See detailConstruire un projet européen ERASMUS+ au service de la formation des adultes. Témoignage: le projet RECTEC
de Saint-Georges, Ingrid UL; Chaumette, Pascal; Diederich, Gary

Scientific Conference (2018, October 25)

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See detailTwitter data as primary sources for historians: a critical approach
Clavert, Frédéric UL; Papastamkou, Sofia

Scientific Conference (2018, October 25)

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See detailLa Lotharingie en question : identités, oppositions, intégration / Lotharingische Identitäten im Spannungsfeld zwischen integrativen und partikularen Kräften
Margue, Michel UL; Pettiau, Hérold UL

Book published by CLUDEM (2018)

This volume contains the proceedings of the 14th Journées Lotharingiennes, held at the University of Luxembourg, in October 2006 and devoted to the analysis of the development of political identities in ... [more ▼]

This volume contains the proceedings of the 14th Journées Lotharingiennes, held at the University of Luxembourg, in October 2006 and devoted to the analysis of the development of political identities in Lotharingia, from the ninth century onward. It contains 17 contributions groupes une the following headings: (1) Eléments fédérateurs; (2) Dissensions internes et identités régionales ; (3) Vecteurs identitaires; (4) La persistance de l'idée lotharingienne. [less ▲]

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See detailForward Secrecy for SPAKE2
Lopez Becerra, José Miguel UL; Ostrev, Dimiter UL; Skrobot, Marjan

in Baek, Joonsang; Willy, Susilo (Eds.) Provable Security (2018, October 25)

Currently, the Simple Password-Based Encrypted Key Exchange (SPAKE2) protocol of Abdalla and Pointcheval (CT-RSA 2005) is being considered by the IETF for standardization and integration in TLS 1.3 ... [more ▼]

Currently, the Simple Password-Based Encrypted Key Exchange (SPAKE2) protocol of Abdalla and Pointcheval (CT-RSA 2005) is being considered by the IETF for standardization and integration in TLS 1.3. Although it has been proven secure in the Find-then-Guess model of Bellare, Pointcheval and Rogaway (EUROCRYPT 2000), whether it satisfies some notion of forward secrecy remains an open question. In this work, we prove that the SPAKE2 protocol satisfies the so-called weak forward secrecy introduced by Krawczyk (CRYPTO 2005). Furthermore, we demonstrate that the incorporation of key-confirmation codes in SPAKE2 results in a protocol that provably satisfies the stronger notion of perfect forward secrecy. As forward secrecy is an explicit requirement for cipher suites supported in the TLS handshake, we believe this work could fill the gap in the literature and facilitate the adoption of SPAKE2 in the recently approved TLS 1.3. [less ▲]

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See detailThemenabend "Tambow"
Ganschow, Inna UL

Conference given outside the academic context (2018)

Nach der Einführung findet ein Dokumentarfilm über das Gefangenenlager Tambow statt; eine erste Diskussion wird über die Manipulation von Quellen und die Rolle der audiovisuellen Quellen in der aktuellen ... [more ▼]

Nach der Einführung findet ein Dokumentarfilm über das Gefangenenlager Tambow statt; eine erste Diskussion wird über die Manipulation von Quellen und die Rolle der audiovisuellen Quellen in der aktuellen Historiographie führen. Anschließend, bieten wir Ihnen an eine Diskussion zu verfolgen zwischen einem Überlebenden des Gefangenenlagers Tambow, Herrn Jos Steichen und der Forscherin Inna Ganschow. [less ▲]

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See detailConference report on the 45th German liquid crystal conference
Honaker, Lawrence William UL

in Liquid Crystals (2018), 27(3), 77-79

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See detailLink Optimization in Future Generation Satellite Systems
Mengali, Alberto UL

Doctoral thesis (2018)

In recent years, communication networks have seen a huge growth in the amount of requested throughput, pushed from the combination of two main drivers: the introduction of new services and the improvement ... [more ▼]

In recent years, communication networks have seen a huge growth in the amount of requested throughput, pushed from the combination of two main drivers: the introduction of new services and the improvement of existing ones, requiring increased amount of traffic (e.g. higher quality of video content). These effects mandate the constant evolution of current systems in order to cope with the growing user demand and should be tackled from multiple angles. On the one hand, better utilization of available resources might help in the short term to keep up with the market and has always been an important priority for operators of terrestrial and satellite networks alike. On the other hand, acquisition and exploitation of currently unused resources might fuel the growth for a significantly longer period of time, ensuring longevity and thus enabling future-proofing of current systems. Both these topics are addressed in this thesis with specific applications relevant to satellite communication networks. In the first part, this thesis focuses on maximization of the user capacity by better exploiting the available radio resources. Motivated by the substantial capacity gains enabled by a higher bandwidth allocation, we investigate the optimization of satellite systems employing full-frequency reuse on the user downlink. Unlike most of the literature on the subject, usually resorting to precoding techniques to mitigate the interference, we propose a combination of predistortion and precoding to jointly counteract on-board non-linear distortions and multi-user interference. First, a flexible framework for the optimization of transmit processing schemes in communication chains is presented. This framework expands on the application of the well known gradient descent technique by applying it to the maximization of the received Signal to Noise plus Interference ratio in complex communication systems. To do so, it identifies a suitable mathematical representation of various key blocks of the system and exploits the chain rule of the derivative to compute the overall gradient as a cascade of the single components. Afterwards, this framework is validated by optimizating the coefficients of the proposed predistortion architecture for the satellite system in analysis. The obtained results highlight the flexibility of the developed optimization framework and the benefits of the suggested predistortion strategy compared to existing state of the art solutions. In the second part of the thesis, the focus is shifted towards investigating the exploitation of novel resources by looking at the use of optical frequencies for ground-to-space feeder links. The topic is introduced by a survey of existing benefits and limitations of free space optical communications. Subsequently, the implications of employing optical frequencies in long distance ground-to-space feeder links with transparent satellites are addressed. Furthermore, a powerful and flexible simulation tool was developed and exploited during the course of this thesis to model and assess the Physical (PHY) layer performance of hybrid optical/Radio Frequencies (RF) satellite networks. This tool is presented together with the scenarios and results obtained as part of the project ONSET (Optical Feeder Links Study for Satellite Networks - ESA Contract No. 40000113462/15/NL/NDe). Finally, the thesis investigates a scenario that combines the transmit processing techniques analyzed in the first part and the context of optical feeder links evaluated in the second part. A hybrid optical/RF system is considered with an electrical predistorter in place to counteract the impairments induced by the combined effects of electrical and optical non-linearities encountered along the end-to-end chain. The developed mathematical framework is exploited to jointly optimize the predistortion coefficients and the working point for the electro-optical modulator. The performance results obtained after the optimization procedure demonstrate the efficacy of the proposed approach for hybrid optical/RF systems with analog modulations. [less ▲]

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See detailRanke2.uni.lu; an online multilingual teaching platform for lessons on digital source criticism
Scagliola, Stefania UL

Learning material (2018)

Ranke.2 is a teaching platform that offers lessons on how to critically assess and work with digital historical sources

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See detailHome Movie Day 2018: van smalfilm tot selfie
van der Heijden, Tim UL

Speeches/Talks (2018)

Home Movie Day at Eye Filmmuseum is an international tribute to the amateur film. This year, Home Movie Day highlights the history of amateur film which spans more than 100 years: from film strips to ... [more ▼]

Home Movie Day at Eye Filmmuseum is an international tribute to the amateur film. This year, Home Movie Day highlights the history of amateur film which spans more than 100 years: from film strips to selfies. How has the making and screening of amateur films and home movies changed in the past century? Who was filming? How and what did they film? And what role did the changing media landscape play? Eye celebrates the Home Movie Day on 20 October. The worldwide tribute to the amateur film has been organised every year since 2002, in countries such as the United States, Argentina and Japan. This edition, through the use of special objects and historical archive material, Home Movie Day zooms in on a number of drastic changes in amateur film. There was the rise of home video in the 1970s and 80s, and the transition from analogue to digital. The amateur and family filmer first filmed on a narrow film or Super8. After these transitions, there were plenty of new possibilities to capture daily life. On October 20 at 15.00 there is a lecture and presentation (90', in Dutch) in Eye in cooperation with Stichting Amateurfilm and the Netherlands Institute for Sound and Vision. The lecture will be held by Tim van der Heijden, media historian and board member of Stichting Amateurfilm. After the presentation, there is an opportunity to exchange information, ask questions and view the exhibited equipment. [less ▲]

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See detailGuideline-based and bioinformatic reassessment of lesion-associated gene and variant pathogenicity in focal human epilepsies
Niestroj, Lisa-Marie; Du, Juanjiangmeng; Nothnagel, Michael et al

in Epilepsia (2018)

Objective: Increasing availability of surgically resected brain tissue from patients with focal epilepsy and Focal Cortical Dysplasia (FCD) or low-grade glio-neuronal tumors has fostered large-scale ... [more ▼]

Objective: Increasing availability of surgically resected brain tissue from patients with focal epilepsy and Focal Cortical Dysplasia (FCD) or low-grade glio-neuronal tumors has fostered large-scale genetic examination. However, assessment of pathogenicity of germline and somatic variants remains difficult. Here, we present a state of the art evaluation of reported genes and variants associated with epileptic brain lesions. Methods: We critically re-evaluated the pathogenicity for all neuropathology-associated variants reported to date in PubMed and ClinVar databases including 101 neuropathology-associated missense variants encompassing 11 disease-related genes. We assessed gene variant tolerance and classified all identified missense variants according to guidelines from the American College of Medical Genetics and Genomics (ACMG). We further extended the bioinformatic variant prediction by introducing a novel gene-specific deleteriousness ranking for prediction scores. Results: Application of ACMG guidelines and in silico gene variant tolerance analysis classified only seven out of 11 genes to be likely disease-associated according to the reported a disease mechanism, while 61 (60.4%) of 101 variants of those genes were classified as of uncertain significance (VUS), 37 (36.6%) as being likely pathogenic (LP) and 3 (3%) as being pathogenic (P). Significance: We concluded that the majority of neuropathology-associated variants reported to date do not have enough evidence to be classified as pathogenic. Interpretation of lesion-associated variants remains challenging and application of current ACMG guidelines is recommended for interpretation and prediction. [less ▲]

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