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See detail"Robes d'eau / robes d'air"
Roelens, Nathalie UL

Presentation (in press)

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See detailUncovering the Forgotten Roots of Digital History: the Association for History and Computing
Zaagsma, Gerben UL

Presentation (2023, April 14)

In recent years, scholars have started to investigate the diverse genealogies of the digital humanities, as part of efforts to consolidate the field by excavating its historical and intellectual ... [more ▼]

In recent years, scholars have started to investigate the diverse genealogies of the digital humanities, as part of efforts to consolidate the field by excavating its historical and intellectual underpinnings. This paper discusses the history of what we now call digital history, by focusing on its direct predecessor: the history and computing movement. It argues that understanding the current era of digital history is impossible without knowledge of the transnational history & computing movement out of which it emerged. The paper will first offer a conceptual framework for the nexus between technology and historical research practices and provide a brief outline of the uptake of computing in historical research in the post-WWII period, which was rooted in a broader context of engagement with reproduction and data processing technology that began in the late 19th century. From the 1940s onwards, historians begin to use analog and later digital computing, efforts that truly gained momentum from the early 1960s onwards in the United States, Western Europe and the Eastern bloc led by the Soviet Union, against the backdrop of the Cold War and a general surge in the use of computing in various humanities disciplines. By the late 1960s we begin to see the establishment of networks and structures to support what could be called an emerging transnational field of computing historians. A transition to a new phase began when first micro- and then personal computing were introduced at universities in the early 1980s and a new user generation of computing historians emerged. As had happened almost two decades earlier, a transnational network would develop, but this time formalised in the Association for History and Computing (AHC) which existed until the early 2000s. The AHC’s history, activities, and many publications highlight the transnational outlook and intellectual breadth of the history and computing period and can served to probe the transition to and (dis)continuities with our current era of digital history. As I will argue, the history and computing movement did not simply give rise to digital history around the turn of the millennium. Despite the continued involvement of some older practitioners, many of the new digital historians were, as before, of a different user generation and the transition to digital history was thus much more than discursive. [less ▲]

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See detailRoundtable : (Digital) Cultural Heritage at risk. Lessons learned for future preservation strategies
Schafer, Valerie UL

Presentation (2022, November 23)

www.c2dh.uni.lu The Russian invasion of Ukraine on the 24th of February 2022 shattered long held beliefs and certainties including the idea that all things digital exist in an ephemeral sphere outside of ... [more ▼]

www.c2dh.uni.lu The Russian invasion of Ukraine on the 24th of February 2022 shattered long held beliefs and certainties including the idea that all things digital exist in an ephemeral sphere outside of the grim realities of the physical world. Instead, the war emphasized the fragility of servers,data and critical infrastructure to physical threats and their exposure to online attacks. At the same time and thanks to social networks and digital communication tools, new forms of ad-hoc support emerged that gave rise to the agency of individuals in supporting and safeguarding Ukrainian (digital) Cultural Heritage. This round table aims to reflect upon the challenges imposed on these efforts from multiple perspectives – be it from the technical point of view on providing backups and fallback infrastructures up to the impact of data protection regulations and coordination strategies for volunteers. In a discussion between internationally renowned experts we want to take stock in the lessons learned and to understand how to make (digital) cultural heritage more resilient. [less ▲]

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See detailRepetition and variation in historicizing online virality
Pailler, Fred UL

Presentation (2022, November 23)

A brief history of rumour and online virality, methodological issues in historicising online virality through web archives and data retrieved from social platforms of the living web.

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See detailIntersectional Inequalities in Science
Kozlowski, Diego UL

Presentation (2022, November 16)

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See detailDecentralized Autonomous Organizations and the Decentralization of Justice
Becker, Katrin UL

Presentation (2022, November 11)

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See detailForschung in Geodäsie und Geoinformation an der Uni.lu
Teferle, Felix Norman UL

Presentation (2022, November 10)

This is a summary of selected research carried out by the team GGE of the DoE in 2017-2022.

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See detailLie superalgebras of Krichever-Novikov type and their central extensions
Schlichenmaier, Martin UL

Presentation (2022, November 02)

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See detailFrontières contestées dans l’espace Schengen à l’exemple de la pandémie
Wille, Christian UL

Presentation (2022, October 20)

Malgré la libre circulation dans l’espace Schengen, la frontiérisation s’est propagée aux régions frontalières en Europe, au plus tard avec la pandémie du Covid-19. Les travaux menés jusqu’à présent sur ... [more ▼]

Malgré la libre circulation dans l’espace Schengen, la frontiérisation s’est propagée aux régions frontalières en Europe, au plus tard avec la pandémie du Covid-19. Les travaux menés jusqu’à présent sur les fermetures de frontières dans le cadre de la pandémie montrent que les études sur le covidfencing portent principalement sur des questions socio-économiques, de gouvernance et sur la gestion de crise. Le quotidien des habitants des régions frontalières, leur vécu des événements et les identités face à l’autre sont peu pris en compte. La communication traite cette dimension de culture quotidienne pendant la pandémie et analyse la dynamique de rebordering et debordering. Pour ce faire, les exemples de contestation du covidfencing à la frontière luxo-allemande, franco-allemande et germano-polonaise seront discutées en tant que people’s resilience. Ce dernier comprend des protestations, des solidarités ou des actions symboliques qui mettent en évidence les actes de contestation des frontiérisations par les acteurs civils. Les dynamiques de frontiérisation sont des phénomènes récents dans les régions frontalières en Europe et ne sont pas encore pris en compte dans l’étude des régions frontalières. Cependant, il faut s’attendre qu’après la pandémie, les frontiérisations dans les réalités de vie au sein des régions frontalières resteront pertinentes et continuerons à faire l’objet des contestations par ses habitants. L’unilatéralisme politique, l’euroscepticisme persistant ou la montée du populisme dans un contexte de flux migratoires continus n’en sont quelques des facteurs décisifs. C’est dans ce contexte qu’en conclusion seront présentées des perspectives pour l’étude des régions frontalières à l’ère de frontiérisation. [less ▲]

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See detailThe Aesthetics of Smoke in Interwar Luxembourgish Literature
Millim, Anne-Marie UL

Presentation (2022, October 19)

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See detailCross-Border Labour market in the Greater Region SaarLorLux
Pigeron-Piroth, Isabelle UL

Presentation (2022, October 07)

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See detailA discussion on international interdisciplinary collaborations. Working at the European level
Schafer, Valerie UL

Presentation (2022, October 06)

Roundtable related to interdisciplinary and international collaborations

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See detailThe Politics of Collective Principals
Anesi, Vincent UL; Buisseret, Peter

Presentation (2022, October)

A group of principals collectively and dynamically screens an agent. The principals hold heterogeneous and evolving values from the relationship. At each date, they use a collective decision rule to ... [more ▼]

A group of principals collectively and dynamically screens an agent. The principals hold heterogeneous and evolving values from the relationship. At each date, they use a collective decision rule to determine a joint offer to the agent; the principals may also amend the procedures governing how their joint offer is chosen. Our main result shows how decisive coalitions of principals voluntarily and permanently concentrate decision-making authority in a single principal. It shows that every equilibrium sequence of procedures converges to the dictatorship of a single principal. [less ▲]

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See detailStudent Project - WAR LETTERS. Teaching with Transkribus Lite
Janz, Nina UL

Presentation (2022, September 30)

Teaching Project based on war letters from Project WARLUX, summer semester 2022

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See detailPerspectives on regulating artificial intelligence tools in the workplace
Yusifli, Zahra UL

Presentation (2022, September 30)

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See detailL'impact de la technologie blockchain sur le droit
Becker, Katrin UL

Presentation (2022, September 22)

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See detailDecentralization as Disembodiment. Blockchain Justice between Utopia and Myopia
Becker, Katrin UL

Presentation (2022, September 15)

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See detailEpilogue: Darning the Divide - Thinking Counterfactually
Becker, Katrin UL; Lassègue, Jean

Presentation (2022, September 15)

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See detailCombiner lecture proche et distante: l’exemple de la viralité en ligne
Schafer, Valerie UL

Presentation (2022, September 13)

Cette intervention s’intéressera à la combinaison de la lecture proche et distante, des échelles micro et macro, en proposant de réfléchir aux enjeux, outils, défis et parfois limites de ce qui est ... [more ▼]

Cette intervention s’intéressera à la combinaison de la lecture proche et distante, des échelles micro et macro, en proposant de réfléchir aux enjeux, outils, défis et parfois limites de ce qui est qualifié de scalable reading . Des recherches en cours sur la viralité en ligne et les mèmes, et notamment le cas du Harlem Shake, seront pris pour cas d'étude, avant d’inviter les participants à penser à leur tour leur sujet en terme de scalable reading . [less ▲]

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See detailL’analyse de la publicité des années 1960
Höfer, Matthias Simon UL

Presentation (2022, September 13)

Detailed reference viewed: 41 (2 UL)
See detailThe Politics of Collective Pricipals
Anesi, Vincent UL; Buisseret, Peter

Presentation (2022, September)

A group of principals collectively and dynamically screens an agent. The principals hold heterogeneous and evolving values from the relationship. At each date, they use a collective decision rule to ... [more ▼]

A group of principals collectively and dynamically screens an agent. The principals hold heterogeneous and evolving values from the relationship. At each date, they use a collective decision rule to determine a joint offer to the agent; the principals may also amend the procedures governing how their joint offer is chosen. Our main result shows how decisive coalitions of principals voluntarily and permanently concentrate decision-making authority in a single principal. It shows that every equilibrium sequence of procedures converges to the dictatorship of a single principal. [less ▲]

Detailed reference viewed: 20 (0 UL)
See detailborn digitals und die historische Wissenschaft. Annäherungen an eine Quellenkunde für genuin elektronisches Archivmaterial
Fickers, Andreas UL

Presentation (2022, August 30)

Expertenworkshop am 30./31.08.2022 im Landesarchiv NRW in Duisburg: born digitals und die historische Wissenschaft – Annäherungen an eine Quellenkunde für genuin elektronisches Archivmaterial Zu den ... [more ▼]

Expertenworkshop am 30./31.08.2022 im Landesarchiv NRW in Duisburg: born digitals und die historische Wissenschaft – Annäherungen an eine Quellenkunde für genuin elektronisches Archivmaterial Zu den grundsätzlichen Kompetenzen von Historiker*innen gehört die methodische Quellenkri-tik. Gleichzeitig ist es gute fachliche Tradition, dass Archivar*innen diese Kompetenz immer schon mit Blick auf die in ihren Häusern überlieferten Unterlagen gefördert haben. Archi-var*innen kennen die überlieferten Unterlagen mit ihren Charakteristika, ihren Besonderhei-ten, ihren Entstehungszusammenhängen u.ä.m. Aus diesem Wissen heraus sind viele Standard-werke zur Akten- oder Quellenkunde entstanden, die die Historiker*innen bei ihrer Forschungs-arbeit unterstützen. Aus einer Vielzahl von Werken seien an dieser Stelle beispielhaft Heinrich Otto Meisner, Aktenkunde, ders., Archivalienkunde, Gerhard Schmid, Akten, Jürgen Klooster-huis, Amtliche Aktenkunde der Neuzeit, Michael Hochedlinger, Urkunden- und Aktenlehre der Neuzeit genannt. Mit der digitalen Transformation der gesamten Gesellschaft seit dem ausgehenden 20. Jahrhun-dert unterliegen auch die klassischen historischen Quellen einem fortlaufenden Digitalisie-rungsprozess: Briefe werden zu E-Mails, Akten zu E-Akten, Karteikarten zu Datensätzen etc. Hinzu treten Quellen rein digitaler Natur, die in der analogen Welt keine vergleichbaren Vorgänger hatten wie Websites oder Vorgangsbearbeitungssysteme (Fachverfahren). Archivar*innen haben bereits erste Erfahrungen mit der Sicherung dieser Unterlagen. Gleichzeitig haben Zeithistori-ker*innen begonnen, diese Unterlagen für ihre Arbeiten zu nutzen. Von einem guten fachlichen Standard im Umgang mit dieser jüngsten Überlieferungsschicht sind aber alle noch entfernt, es fehlen Praxiserfahrungen in der Breite wie in der Tiefe und zwar sowohl bei der Überlieferungs-bildung und der Archivierung als auch bei der Nutzung und der Interpretation. Die digitale Transformation in Gesellschaft und Verwaltung fordert(e) also Archivar*innen heraus, Konzepte und Verfahren zu entwickeln, um genuin elektronisches Schriftgut dauerhaft zu erhalten, also ebenso langfristig zu archivieren wie mittelalterliche Urkunden oder neuzeitliche Verwaltungs-akten. Dabei geht es um nichts Geringeres als die Verhinderung einer umfassend fehlenden Überlieferung aus der Zeit des späten 20. und frühen 21. Jahrhunderts, was zugleich deutlich stärkere archivarische Eingriffe in die Quellengestaltung erfordert, als das bei der analogen Über-lieferung der Fall war. Wenngleich diese Hürde sicherlich noch nicht abschließend genommen ist, so stellt sich gleich-zeitig die Frage: Wird die historische Wissenschaft und werden Archivnutzer*innen in der Lage sein, diese genuin elektronischen Unterlagen, die kein analoges Pendant kennen, zu interpre-tieren? Welche Instrumentarien und Werkzeuge liegen vor, um versiert born digitals kompe-tent einordnen und auswerten zu können? Sind die archivarischen Eingriffe hinreichend nach-vollziehbar, so dass die quellenkritische Analyse der Forschung nicht beeinträchtigt wird. Auch wenn es erste Ansätze dazu geben mag, so fehlt aus Sicht des Landesarchivs NRW eine um-fassende und methodengeleitete Quellenkunde für genuin elektronisches Archivgut, insbeson-dere aus der Verwaltung. Vielfach – so der Eindruck – sind diese Archivalien in der historischen Wissenschaft noch nicht bekannt oder man ist damit noch nicht vertraut. Das Landesarchiv NRW möchte sich daher gemeinsam mit Historiker*innen diesem Desiderat annehmen. Es ist be-strebt, die begonnene Bildung und Nutzung von elektronischer Überlieferung auch mit einer fachlich-theoretischen Diskussion zwischen Forschung und Archiven zu begleiten. Zu diesem Zweck organisiert das Landesarchiv NRW einen Workshop für und von Expert*innen aus der Geschichtswissenschaft und dem Archivwesen, um den quellenkritischen Diskurs zu ge-nuin digitaler Überlieferung zwischen Forschung und Archiven zu fördern und einen Impuls für die Entwicklung einer Quellenkunde zu geben. Dieser Workshop soll zum einen als Bestandsauf-nahme und zum anderen – idealiter – als Grundlage für eine Publikation dienen. Auf der Basis der Kenntnisse von Archivar*innen über die gängigen elektronischen Archivalien einerseits und durch das Bündeln vorhandener Ansätze geschichtswissenschaftlicher Auswertungsmethoden für born digitals andererseits sollen Überlegungen für eine Quellenkunde elektronischer Unterla-gen weiterentwickelt werden. Der Workshop grenzt sich insofern von den üblichen Herangehensweisen in den Digital Humani-ties ab, als dass Forschungsdaten, Digitalisate von analogem Archivgut, Datenbankanalysen und andere Methoden der Recherche in digitalen (Online-)Daten (Data Mining etc.) oder der digita-len Präsentation und Diskussion von Forschungsergebnissen nicht thematisiert werden. Zentral diskutiert werden soll das elektronische Archivgut, das den Großteil des genuin elektronischen Schriftguts aus den anbietungspflichtigen Behörden, also die neue und künftige Überlieferung der öffentlichen Verwaltung darstellt, nämlich elektronische Akten, Fachverfahren, ungeordnete Dateiablagen, daneben aber auch Informationen im Internet und in den Sozialen Medien. In der ersten Sektion „Einführendes und Grundlegendes“ werden Fragestellung und Themenzu-schnitt des Workshops dargelegt sowie die Terminologie aus zwei Perspektiven zur Diskussion gestellt. Ferner wird erörtert, worin die „Digitale Transformation“ in der Verwaltung besteht und was die Konsequenzen für die Generierung von genuin elektronischen Verwaltungsunterla-gen sind: Welche Daten und Informationen entstehen? Worin unterscheiden sich genuin elekt-ronische Unterlagen von den bekannten analogen Verwaltungsakten, was ist das spezifisch Digi-tale? Wie verändern sich Systematik und Aggregation von Verwaltungsdaten? In welchem Maße greifen Archive im Zuge der digitalen Überlieferungsbildung und der elektronischen Archivie-rung in die Daten ein? Welche Bedeutung kommt dabei den signifikanten Eigenschaften, den Metadaten und den Versionierungsangaben zu? In den Sektionen II und III stehen typische und spezifische digitale Objekttypen im Fokus hin-sichtlich der archivierten Formate und Kontexte sowie hinsichtlich der Methoden der quellen-kritischen Einordnung und quellenkundlichen Auswertung. Ausgehend von den Kenntnissen zu diesen Objekten soll u.a. Folgendes diskutiert werden: Welche technischen, verwaltungsorgani-satorischen und archivfachlichen Kenntnisse sind für eine methodenbasierte, wissenschaftliche Interpretation der ausgewählten Unterlagentypen als historische Quellen erforderlich? Welche Anforderungen sollten Archive erfüllen, damit eine quellenkritische Auswertung der elektroni-schen Überlieferung gewährleistet ist? Was muss ein „Werkzeugkasten“ beinhalten, damit er als methodenbasierte „Quellenkunde für genuin elektronisches Archivgut“ dienen und in die Ver-mittlung von Geschichtswissenschaft einfließen kann? Was wäre beispielsweise Inhalt eines Grundseminars „Quellenkunde genuin elektronischen Verwaltungsschriftguts“? Zu diskutieren ist, welche bisherigen „Werkzeuge“ können – ggf. leicht abgewandelt – auch auf born digitals angewandt werden, welche müssen neu entwickelt werden und was kann u.U. aufgrund der Digitalität der Quellen neu erforscht werden. In der Abschlussdiskussion soll neben einem Resümee ein Ausblick auf ein mögliches Publikati-onsprojekt gewagt werden, etwa: Was ist der Bedarf der Geschichtswissenschaft? Welche Art von Quellenkunde wird benötigt? Kann es ein gemeinsames Projekt für eine Quellenkunde ge-ben? Der zweitägige Workshop ist so gestaltet, dass die archivfachlichen Perspektiven mit denen der Geschichtswissenschaft eng verzahnt miteinander im Dialog stehen. Deshalb wird jedes Thema von zwei Impulsreferaten (à ca. 15-20 Minuten) je von einer/m Archivar*in und einer/m Histori-ker*in eingeleitet. In den verbleibenden ca. 30 Minuten ist Raum für die Diskussion. Anders als die vorhergehenden Sektionen ist die Sektion III als „Workshop im Workshop“ organisiert: Die quellenkritische Betrachtung von einerseits E-Akten und andererseits elektronischen Fachver-fahren wird von zwei Archivarinnen vorbereitet und durchgeführt. Daneben sollen gemeinsam konkrete Beispiele von elektronischen Unterlagen angeschaut und diskutiert werden. Die von Dr. Bischoff moderierte Abschlussdiskussion wird zunächst von einem Historiker mit einem Kommentar zur Tagung eingeleitet. [less ▲]

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See detailGrenzkomplexitäten: Annäherung und Problematisierungen
Wille, Christian UL

Presentation (2022, August 29)

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See detailWhat Makes Public History Truly International?
Cauvin, Thomas UL; Perry, Jimena; Zündorf, Irmgard et al

Presentation (2022, August 25)

Public History and history didactics are two subdisciplines of history that focus on reaching the world outside the academy. Both put an emphasis on “practising” history while at the same time grounding ... [more ▼]

Public History and history didactics are two subdisciplines of history that focus on reaching the world outside the academy. Both put an emphasis on “practising” history while at the same time grounding practice on theoretical reflection and empirical research with the ultimate goal of developing the most effective strategies of reaching diverse audiences to enhance historical knowledge and understanding. This roundtable explores what we mean by international public history and by the internationalization of history didactics, drawing on initiatives such as The Italian Public History Manifesto (2016) issued by the Italian Association of Public History (Associazione Italiana di Public History (AIPH). Our discussion will revolve around questions such as How must we re-shape history didactics and public history so that we take full account of transnational, diasporic and other identities based on class, gender, race, ethnicity, religion, sexuality, or ability? How can we enhance knowledge building globally by embracing different local experiences and perceptions? How do we address imbalances and the traditional North American and European centredness of our subdisciplines? [less ▲]

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See detailExhibiting the Industrial Past and Digital Storytelling
Boretska, Viktoria UL; Richter, Daniel UL

Presentation (2022, August 17)

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See detailMigration and Education - Luxembourg
Sommarribas, Adolfo UL

Presentation (2022, August 16)

The presentation deals on the Luxembourgish multiliguistic educational system and the challenges that foreigners (EU citizens and third-country nationals) are confronted with this system as well as the ... [more ▼]

The presentation deals on the Luxembourgish multiliguistic educational system and the challenges that foreigners (EU citizens and third-country nationals) are confronted with this system as well as the good practices implemented by the Luxembourgish authorities. [less ▲]

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See detailN-Point Virasoro Algebras are multipoint Krichever-Novikov type algebras
Schlichenmaier, Martin UL

Presentation (2022, August 10)

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See detailSplitting fields of X^n-X-1 and modular forms
Wiese, Gabor UL

Presentation (2022, July 21)

In his article `On a theorem of Jordan', Serre considered the family of polynomials f_n(X) = X^n-X-1 and the counting function of the number of roots of f_n over the finite field F_p, seen as function in ... [more ▼]

In his article `On a theorem of Jordan', Serre considered the family of polynomials f_n(X) = X^n-X-1 and the counting function of the number of roots of f_n over the finite field F_p, seen as function in p. He explicitly showed the `modularity' of this function for n=3,4. In this talk, I report on joint work with Alfio Fabio La Rosa and Chandrashekhar Khare, in which we treat the case n=5 in several different ways. [less ▲]

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See detailChildren in Migration: The Ukrainian Crisis: Challenges and Lessons learned
Sommarribas, Adolfo UL

Presentation (2022, July 19)

This presentation gives an overview of the Temporary Protection Directive and its implementation in Member States due to the unprovoked invasion of Ukraine by the Russian Federation and how Member States ... [more ▼]

This presentation gives an overview of the Temporary Protection Directive and its implementation in Member States due to the unprovoked invasion of Ukraine by the Russian Federation and how Member States have dealt with the issue of Ukrainian children in regard to guardianship, housing and education. [less ▲]

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See detailModerator: Discussion with Christoph Brüll
Venken, Machteld UL

Presentation (2022, July 14)

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See detailOstbelgien als popkultureller Zwischenraum?
Brüll, Christoph UL

Presentation (2022, July 13)

Seit einigen Jahren hat die ostbelgische Regionalgeschichtsschreibung versucht, den von Philipp Ther geprägten Begriff des ‚Zwischenraums‘ für die Historiografie über diese belgisch-deutsche Grenzregion ... [more ▼]

Seit einigen Jahren hat die ostbelgische Regionalgeschichtsschreibung versucht, den von Philipp Ther geprägten Begriff des ‚Zwischenraums‘ für die Historiografie über diese belgisch-deutsche Grenzregion im 19. und 20. Jahrhundert fruchtbar zu machen. Diese konzeptionellen Überlegungen fanden ihren Niederschlag zunächst in der Buchreihe „Grenzerfahrungen. Eine Geschichte der Deutschsprachigen Gemeinschaft Belgiens“ und dann vor allem in der am C²DH entwickelten virtuellen Ausstellung www.zeitschichten.be (2020). Der erste Teil des Vortrags besteht aus einer Meta-Führung durch die zum 100. Jahrestag der Zugehörigkeit der Region zu Belgien entwickelte Online-Expo. In einem zweiten Schritt sollen auf der Grundlage einiger der darin genutzten Quellen Überlegungen dazu angestellt werden, ob sich die Geschichte Ostbelgiens auch als die eines popkulturellen Zwischenraums deuten lässt. Dabei standen der faktischen Hybridität der regionalen, ländlich geprägten Kultur oftmals von der Sehnsucht nach nationaler Eindeutigkeit geprägte Selbstzuschreibungen entgegen, die die Suche nach dem Platz der Ostbelgier in Belgien, zwischen Belgien und Deutschland und zwischen zwei großen westeuropäischen Sprachräumen widerspiegeln. [less ▲]

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See detailPresenter: Talking Borders, History and Digital Hermeneutics
Venken, Machteld UL

Presentation (2022, July 13)

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See detailPresenter: Testimonies from the War
Venken, Machteld UL

Presentation (2022, July 11)

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See detailEuropean Integration Studies through Oral History and Multimedia Research - Innovative methodologie and new content creation
Danescu, Elena UL

Presentation (2022, July 11)

Presentation of three study cases: 1.Oral Historyand MultimediaResearch–Project ‘’Pierre Werner and Europe’’ (2011-2017) 2.Collaborative Oral History Project –‘’Brexit Reality Portraits’’ (2021-2022) 3 ... [more ▼]

Presentation of three study cases: 1.Oral Historyand MultimediaResearch–Project ‘’Pierre Werner and Europe’’ (2011-2017) 2.Collaborative Oral History Project –‘’Brexit Reality Portraits’’ (2021-2022) 3.Oral History Research Project –‘’The role of women in European and international relations in Luxembourg (after the Second World War)’’ (2022-2025) [less ▲]

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See detailOn the Application of Multipath Stacking Maps for Improved Severe Weather Tracking and Low-cost Antenna Calibration
Teferle, Felix Norman UL; Hunegnaw, Addisu UL; Duman, Hüseyin et al

Presentation (2022, July 07)

Modern cities all over the world are now more susceptible to flash floods as a result of a rise in the frequency and severity of meteorological events with significant precipitation. For minimizing the ... [more ▼]

Modern cities all over the world are now more susceptible to flash floods as a result of a rise in the frequency and severity of meteorological events with significant precipitation. For minimizing the risks due to these hydro-meteorological hazards, reliable fore- and now-casting of severe precipitation has become essential. Water vapor can be measured along slant paths by network of ground-based GNSS stations, providing real-time, three-dimensional (3D) distributions of vapor concentrations at an affordable cost. Consequently, these data provide an invaluable additional source of knowledge for monitoring and predicting events with flash flood potential. But site-specific multipath (MP) effects at GNSS stations do affect incoming signals, particularly at low elevations, as is widely known. The bulk of GNSS products for meteorology up to now are based on estimates of ordinary zenith total delay and horizontal gradients with little sensitivity to azimuthal variations, thus these products may not be best suited for estimating 3D distributions of water vapor during storm events. Using slant delays directly, can overcome this lack of azimuthal information. However, at low elevations, this approach is more susceptible to multipath errors. A thunderstorm event which occurred over Turkey and adjacent countries on July 27, 2017, resulting in flash floods and severe infrastructure damage, is used as an example to explore the effects of multipath-corrected slant wet delay (SWD) estimations on monitoring extreme weather events. To reconstruct the one-way SWD, we first added phase residuals derived from the GNSS one-way post-fit observations, which represent the anisotropic component of the SWD. This can also be interpreted as a higher order inhomogeneity component, which is not resolved by ordinary zenith or gradient products. For the generation of site-specific MP correction maps, we stacked the post-fit residuals derived from our Precise Point Positioning (PPP) processing strategy because the MP errors in the GNSS phase observables can adversely impact the SWD along the direction of individual satellites. The spatial stacking was performed in congruent cells as a function of elevation and azimuth. This enables each cell to receive roughly the same number of residuals, providing a better stacking result. The stacking of residuals for a single cell over several days allows the detection and reduction of systematic errors; random errors are minimal because the averaging is done over a suitably sufficient chosen time span. Finally, the one-way SWD were enhanced by applying these MP correction maps for the analysis of the meteorological event. Our study revealed that the anisotropic component contributed up to 11% of one-way SWD estimates. Furthermore, the spatio-temporal changes in SWD as derived from GNSS closely matched the moisture field from the ERA5 re-analysis linked to this weather event. As it turns out, the MP correction maps may also provide a “kind of calibration” for uncalibrated or low-cost GNSS antennas, even for those in mobile phones, as these devices are highly susceptible to MP errors. In turn, this would allow the application of low-cost sensors to accurately estimate SWD for severe weather monitoring in urban regions. [less ▲]

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See detailCountry-level Variation of Dementia Prevalence in Europe - Comparing OECD and SHARE Data
Klee, Matthias UL; Langa, Kenneth, M.; Leist, Anja UL

Presentation (2022, July 07)

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See detailPanels at "Rethinking and Rebuilding Grand Narratives in the History of Computing"
Schafer, Valerie UL

Presentation (2022, July 04)

Participation at two roundtables : Could we structure a big story around the materialities of data, computation and networks? Roundtable discussion featuring Cyrus Mody (Maastricht University), Moritz ... [more ▼]

Participation at two roundtables : Could we structure a big story around the materialities of data, computation and networks? Roundtable discussion featuring Cyrus Mody (Maastricht University), Moritz Feichtinger (Universität Bern), Axel Volmar (Siegen University) & Valérie Schafer (C2DH, University of Luxembourg, moderator) / Can we integrate issues of gender, justice and embodiment into the story of the computer itself or must these narratives remain separate and particular? Roundtable discussion featuring Valérie Schafer (C2DH, University of Luxembourg), Jeffrey Yost (Charles Babbage Institute, University of Minnesota) and Elizabeth Petrick (Rice University, moderator). [less ▲]

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See detailTransformation der Grenze und konzeptionelle Aufbrüche
Wille, Christian UL

Presentation (2022, June 30)

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See detailThe environmental impact of our food
Igos, Elorri; Reckinger, Rachel UL

Presentation (2022, June 29)

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See detailNon-Standard Errors
Wolff, Christian UL

Presentation (2022, June 24)

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See detailKeep calm and stay focused. Historicising and intertwining scales and temporalities of online virality
Schafer, Valerie UL; Pailler, Fred UL

Presentation (2022, June 22)

This presentation takes online virality as its starting point, specifically that of memes and the question of their historicisation , in order to question how they may be resituated in a context of ... [more ▼]

This presentation takes online virality as its starting point, specifically that of memes and the question of their historicisation , in order to question how they may be resituated in a context of production and circulation, taking social, spatial and temporal logics into account. After a discussion of the scalable reading as applied to virality, with specific emphasis on the importance of the spatial and temporal aspects, we propose a case study based on the Harlem Shake. [less ▲]

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See detailDas Theorie-Praxis-Verhältnis aus Sicht der universitären Praktikumsbetreuung
Dujardin, Céline UL

Presentation (2022, June 22)

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See detailAssessing the need for power system flexibility on a global level: A multi-criteria assessment index
Bhuiyan, Rajon UL

Presentation (2022, June 21)

To effectively cope with the intermittency of VRE, power systems will need different flexibility options. The future portfolio of flexibility options will differ among countries, as it will be determined ... [more ▼]

To effectively cope with the intermittency of VRE, power systems will need different flexibility options. The future portfolio of flexibility options will differ among countries, as it will be determined by the political, economic, social, technological, legal, and environmental factors of a country. Thus, some countries might have a greater need for flexibility options than others. Generation and expansion planning for renewable power systems on a national level are complex and require large long-term investments. Therefore, it is crucial to estimate the "need for flexibility" in energy systems from a macro-level. By assessing relevant indicators (e.g., economic) and different boundary conditions (e.g., VRE capacity), power system planners, policymakers, operators, and regulators can evaluate the need for flexibility in power systems and prioritize the needed actions. Published research and international reports do not refer to the countries with the highest need for flexibility options in respective power systems. In this regard, the aim of this paper is to answer the following question: "Which countries in the world have the highest need for flexibility options from a macro-energy systems point of view?" To answer our question, first, we have identified relevant indicators from the literature that can help us to estimate the "need for flexibility" in national power systems. Second, we weighed the different indicators according to their importance by using the analytical hierarchy process (AHP) of the multi-criteria decision analysis (MCDA) process. Finally, this paper proposes a “global index for flexibility need” using these indicators. As for the results, countries were ranked in this index based on indicators and already show us the promising countries with the top 10 dominated by European countries. This index works as a macro-level assessment framework that provides the comparative position of countries with regard to the need for flexibility. This index will help technology providers and increase investor confidence to choose countries with the highest "flexibility need" for technology implementation. This will help relevant stakeholders to focus on key countries first to accelerate the integration of VRE and thus help the global energy transition. [less ▲]

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See detailTemporary Protection in the EU - State of Play
Sommarribas, Adolfo UL

Presentation (2022, June 16)

On 24 February 2022, the armed forces of the Russian Federation launched an unprovoked full-scale invasion of Ukraine. This was an unprecedented act of aggression against a sovereign and independent ... [more ▼]

On 24 February 2022, the armed forces of the Russian Federation launched an unprovoked full-scale invasion of Ukraine. This was an unprecedented act of aggression against a sovereign and independent country and goes against fundamental principles of international law. It has been strongly condemned by the international community, including the European Union. As of mid-May, over six million Ukrainian and international refugees are fleeing the war to neighbouring EU and third countries (including Moldova) and eight million people have been displaced internally. This massive inflow of Ukrainian refugees into the EU resulted in the Council adopting the implementing Decision 2022/382 of 4 March 2022, introducing temporary protection as a means of dealing with the crisis. This is the first time, that the Temporary Protection Directive has been triggered in the Member States. The EMN has collected information in relation to the Temporary Protection Directive implementation in Member States (e.g. registration) and how the rights conferred to the Beneficiaries of Temporary Protection are provided (e.g. accommodation, healthcare, education, social welfare, etc.) The objective of this workshop is to increase participants’ knowledge in handling information related to the implementation of TPD. The target audience are EMN Member States and the EMN Service Provider but participation is also open to Commission policy officers, EU MS officials and EU agencies. [less ▲]

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See detailOrganiser: Workshop on the Subject of Social Space
Venken, Machteld UL

Presentation (2022, June 16)

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See detailA Mechanistic Multiscale Metabolic Model in Human Astrocytes
Farina, Sofia UL

Presentation (2022, June 10)

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See detailMicro-studies of Worker Streets in Esch at the Beginning of the 20th Century
Richter, Daniel UL

Presentation (2022, June 09)

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See detailHERO? TRAITOR? VICTIM? AMBIGUITY OF DATA IN WAR BIOGRAPHIES
Janz, Nina UL

Presentation (2022, June 04)

Project WARLUX - Soldiers and their Communities in WWII: The Impact and Legacy of War Experiences in Luxembourg", at the Luxembourg Centre for Digital and Contemporary History (C²DH) of the University of ... [more ▼]

Project WARLUX - Soldiers and their Communities in WWII: The Impact and Legacy of War Experiences in Luxembourg", at the Luxembourg Centre for Digital and Contemporary History (C²DH) of the University of Luxembourg researches the personal side of the history of Luxembourgish youth born between 1920 and 1927 who were enrolled into German services under the Nazi occupation of Luxembourg during World War II. The research focuses on personal testimonies and their individual war experience to uncover these men, women, and families' individual experiences. The Methodology includes a biographical approach to offer a micro-historical perspective on single actors to link individual life stories to home communities. WARLUX will analyse the individuals from their social environments, social background, or trajectories during the war and their life in the post-war period based on their biographies. But this is almost where the most significant challenge lies in avoiding pre-existing terminologies, e.g. Nazi terms. When analysing the dataset of contemporary Nazi documents and post-war documents, the sources describe the same objects and elements but require a different interpretation. When building a dataset for independent and objective research, it is crucial to distinguish between the various sources and make the data entries comprehensible. While for the Nazis, volunteers in the Waffen-SS were "exemplary fighters", in post-war Luxembourg, they were "traitors to the fatherland". The young men who deserted from the Wehrmacht during the war, "cowards" and "Wehrkraftzersetzer" for the Nazis, in peacetime "heroes" of the Grand Duchy of Luxembourg. The project has worked with a relational database (nodegoat) so far but is reaching its limits. This database's strength lies in linking objects while assigning strict categories and dates but fails when it comes to flexible and uncertain or ambiguous data. In many sources, there are different variations of dates and circumstances of the targets under study. For example, the Nazi authorities introduced the conscription law in Luxembourg on 30 August 1942. Every man born between 1920 and 1927 was called to register on the conscription lists. Therefore, men who enlisted in the Wehrmacht before this date are considered volunteers, which completely changed their status as mentioned during the war and after returning home. Mapping this scheme in a data model seems "easy" - date of enlistment XX, and then building the category of volunteer yes/no. But as the data repeatedly shows, it is more complex than expected. Volunteers who joined the German forces before August 1942 tried to avoid their "real" enlistment and changed it to an earlier date (reporting to the authorities) because they were aware of the severe consequences they and their families faced after the surrender of the Nazi forces. There are now two dates in the dataset. The relational structure only allows one date for the volunteer "tab". If I had chosen only one date, this case would have been overlooked. The analysis requires a flexible and changeable dataset where the fixed points can be changed depending on the research question. It is always a challenge in historical research. Still, due to the mass data (10,000 objects/persons) that WARLUX uses, it needs a flexible and smooth data structure and, on the other hand, one that is as stringent and reliable as possible. [less ▲]

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See detailEmulating Active Space Debris Removal Scenarios in Zero-G Lab
Li, Xiao UL; Hubert Delisle, Maxime UL; Yalcin, Baris Can UL et al

Presentation (2022, June 02)

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See detailModerator: Digital History
Venken, Machteld UL

Presentation (2022, June 02)

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See detailLa paix selon Erasme. De la "Querela Pacis" aux années 1930.
Weis, Monique UL

Presentation (2022, June 01)

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See detailDiscussant on Film: Occupation and Liberation
Venken, Machteld UL; Kelbecheva, Evelina

Presentation (2022, June 01)

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See detailLaute Literatur! Textrezeption vor der Privatlektüre.
Bendheim, Amelie UL

Presentation (2022, May 31)

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See detailSmall States Diplomacy in Action. Luxembourg in the European Integration History
Danescu, Elena UL

Presentation (2022, May 30)

After the Second World War, in line with its new strategic choice Luxembourg resolutely set out on the road to international multilateralism and European integration, being in 1951 one of the six founding ... [more ▼]

After the Second World War, in line with its new strategic choice Luxembourg resolutely set out on the road to international multilateralism and European integration, being in 1951 one of the six founding members of the European Coal and Steel Community (ECSC), and in 1952 - the workplace of the newly established European Community institutions. Since then, Luxembourg has played and continues to act as a mediator and a force for ideas in the EU, either as a member State, or through some of its leaders (including Joseph Bech, Pierre Werner, Gaston Thorn, Jacques Santer, Jean-Claude Juncker). Based on a wide range of sources from public and private archives, this presentation aims to illustrate how the Grand-Duchy had become a master of small states diplomacy and a consensus builder in the European integration history, and to demonstrate that the influential nature if its leadership gave Luxembourg a role that far outweighed the country’s socio-economic impact. [less ▲]

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See detailModerator: Future Development of the Initiative
Venken, Machteld UL

Presentation (2022, May 28)

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See detailDiscussant: Facing Violence: When and Why to Document War Experiences?
Venken, Machteld UL

Presentation (2022, May 27)

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See detailMultilingual books Sumak and Mara's song
Aleksic, Gabrijela UL

Presentation (2022, May 27)

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See detailBuilding a Smart Nation: Luxembourg Tackling the Fourth Industrial Revolution
Danescu, Elena UL

Presentation (2022, May 17)

Beginning in the 20th century, Luxembourg experienced several periods of transition. The largely agriculture-based economy became industrialized, driven by a powerful steel industry which remained the ... [more ▼]

Beginning in the 20th century, Luxembourg experienced several periods of transition. The largely agriculture-based economy became industrialized, driven by a powerful steel industry which remained the dominant sector from the immediate post-Second World War years to the mid-1970s. In 1974 the steel industry began to decline, marking the end of the ‘Trente Glorieuses’. Luxembourg was forced to implement considerable structural changes and embarked on its second major transition, from an industrial economy to a service economy based on the financial sector. To guarantee its future position in a competitive globalized environment, the country needed to diversify its economy by focusing on state-of-the-art fields with high added value, while preserving the competitiveness of the financial sector. Luxembourg continued to prioritize innovation as the main driver of sustainable and inclusive growth, embarking on its digital transition in order to build a "smart nation". [less ▲]

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See detailMasse des archives du web et circulation des contenus
Pailler, Fred UL

Presentation (2022, May 13)

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See detailThe ECB: a prudential supervisor without sufficient powers?
Allemand, Frederic UL

Presentation (2022, May 12)

Council Regulation No 1024/2013 (‘SSM Regulation’ or ‘SSMR’) confers exclusive competence on the ECB to carry out specific supervisory tasks with regard to credit institutions established in the Euro Area ... [more ▼]

Council Regulation No 1024/2013 (‘SSM Regulation’ or ‘SSMR’) confers exclusive competence on the ECB to carry out specific supervisory tasks with regard to credit institutions established in the Euro Area Member States. When the ECB carries out its supervisory tasks, it is “considered, as appropriate, the competent authority or the designated authority in the participating Member States as established by the relevant Union law”. Any reference made in the CRD IV to a National competent authority (NCA) shall thus be read as a reference to the ECB whenever the ECB is competent. However, this does not turn the ECB into a super NCA. Although the SSMR has granted the ECB most of the powers necessary to carry out its new tasks, the ECB lacks certain specific powers that national laws have given to national supervisors. Filling this gap and ensuring a high level of consistency in the exercise of prudential supervision require the definition of complex administrative composite procedures where the identification of responsibility and accountability of the ECB and the NCAs is particularly blurred. Ten years after the creation of the SSM, it will be time to consider a number of developments in the legal framework, as this contribution will discuss in conclusion. [less ▲]

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See detailDigging into web archives of the COVID crisis
Schafer, Valerie UL; Joshgun, Sirajzade; Susan, Aasman

Presentation (2022, May 11)

This presentation aimed at presenting the challenges, methodologies and issues related to the analysis of the IIPC COVID collection of web archives through a collaboration with the Archive Unleashed Team.

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See detailContemporary Teaching
Baumann, Isabell Eva UL

Presentation (2022, May 11)

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See detailPhD Day - Complex Particle Laden Fluid Structure Interaction
Adhav, Prasad UL

Presentation (2022, May 10)

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See detailLa dimension idéologique et les impacts sociaux de la technologie blockchain
Becker, Katrin UL

Presentation (2022, May 04)

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See detailKeep calm and carry on. Historicizing online virality
Schafer, Valerie UL; Pailler, Fred UL

Presentation (2022, May 04)

The purpose of our Hivi research project (https://hivi.uni.lu) is to historicise and to contextualise online virality through the different ages of the Web. This allows to grasp the evolution of digital ... [more ▼]

The purpose of our Hivi research project (https://hivi.uni.lu) is to historicise and to contextualise online virality through the different ages of the Web. This allows to grasp the evolution of digital cultures, as well as the changes of platforms, audience, formats, and the cross-platform, transnational and transmedia circulations of Internet phenomena (memes, online challenges, etc.). There are also continuities of practices to be retrieved, such as trolling, participation and remix. Even in the short time of the history of the Web, viral phenomena have undergone rapid and constant changes, due to the evolution of the Web (appearance or disappearance of platforms and web sites, changes of interfaces, etc.), of digital practices (may it be related to content production or consumption), and of the phenomena themselves, which are flexible, adaptable and versatile. To reflect on the temporalities and spatialities of these ephemeral and changing phenomena, this talk will present the sources and tools we are currently using, the methodological challenges we are also facing while exploring a large amount of data and sources (may it be on the living or archived web). [less ▲]

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