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See detailStacked-Cascode Current Steering Architecture for Gallium Nitride Variable-Gain LNAs
Gonzalez Rios, Jorge Luis UL; Vazquez, Diego; Moreno, Robson et al

in IEEE 14th Latin American Symposium on Circuits and Systems (LASCAS 2023) (2023)

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See detailThe European Citizens' Initiative: Caught between Executive Dominance and Judicial Restraint?
Hiry, Jasmin UL

in Jancic, Davor (Ed.) The Changing Role of Citizens in EU Democratic Governance (2023)

Launched as a tool of participatory democracy, the European Citizens’ Initiative (ECI) raised great hopes to make the Union more accessible. However from the very beginning, the procedures and conditions ... [more ▼]

Launched as a tool of participatory democracy, the European Citizens’ Initiative (ECI) raised great hopes to make the Union more accessible. However from the very beginning, the procedures and conditions of the ECI have been beset with problems. Its early years are characterized by the struggle to determine the registration requirements to be fulfilled by organizers. With the recent legislative revision of Regulation No 211/2011 and the CJEU’s jurisprudence, these requirements have become more lenient - leading to an increase in registered ECIs. In recent years, it is exactly this increase that has reinforced the ultimate question of the citizens’ initiative - which actions must or should the Commission take subsequent to a successfully submitted initiative. In an attempt to contribute to the discussion, the present chapter analyses both the legislative framework in this regard as well as the Court’s interpretation thereof. It shows that the ECI in terms of its outcome is currently caught between a dominant Commission defending its holy grail of the right of initiative, and a Court, which so far has shown little activism to grant anything more than a reasoned opinion to organizers of a successful ECI. With the ongoing political debate and the call to elevate a successful ECI to a right to trigger the process of adopting Union acts, the pressure on the legislature is increasing. It is in this context that this chapter reflects on potential ways forward, their effectiveness in terms of concluding the debate, and the likeliness of being politically accepted. [less ▲]

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See detailLa responsabilité civile du fait des lycanthropes
Calcio, Mathilde UL

in Calcio, Mathilde (Ed.) Horreur et Droit (2023)

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See detailHistorian cultures – the epistemology and methodology of history in the digital age - CulturHist
Clavert, Frédéric UL; Muller, Caroline

E-print/Working paper (2023)

CulturHist has its sights particularly on the community of researchers, who have done little to make the results and suggestions offered by the digital humanities their own. We want to focus the ... [more ▼]

CulturHist has its sights particularly on the community of researchers, who have done little to make the results and suggestions offered by the digital humanities their own. We want to focus the discussion on a cross cutting issue: the link to archives, as the raw material for writing an account of the past. The habit of working digitally of those historians who do not nowadays verbalise their computer practices is now widespread and is bolstered by policies aimed at making many digitised document collections available online. For example, a search using the Internet Archive wayback machine developed by a not-for-profit company which archives the Web, shows that, in January 2002, Gallica, the digital library of the Bibliothèque Nationale de France (National Library of France), reported having 80 000 documents online, as compared to a little over 5.8 million on 4 September 2019. These days, it is possible to carry out international historical investigations without being in physical contact with a document, as was demonstrated as far back as 2011 by the Data mining with criminal intent project (Cohen et al.). This means that researchers often become data managers (Cartier et al.). Most researchers now practise these habits, and there is an urgent need to analyse them and adapt initial and further training in history in order to help students and historians grasp how ways of writing history are being changed. [less ▲]

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See detailL’intégration monétaire européenne ou la paix des monnaies
Allemand, Frederic UL

in Potvin-Solis, Laurence (Ed.) L'Union européenne et la paix (2023)

La monnaie est le reflet du système des relations sociales des sociétés transactionnelles. Elle en porte les valeurs, en promeut les objectifs. Les traités européens fondent un processus d’union sans ... [more ▼]

La monnaie est le reflet du système des relations sociales des sociétés transactionnelles. Elle en porte les valeurs, en promeut les objectifs. Les traités européens fondent un processus d’union sans cesse plus étroite entre les peuples européens. L’Union a pour but de promouvoir la paix. Créée en 1999, la monnaie unique européenne, l’euro, contribue à ce rapprochement entre les peuples en composant une communauté monétaire. Elle met fin à l’état d’anarchie entre monnaies européennes, elle garantit la justice entre les utilisateurs de l’euro, par sa nature dénationalisée et sa stabilité. Cependant, la malingrerie des arrangements institutionnels gouvernant la projection externe du pouvoir monétaire européen confère à celui-ci un rôle modeste dans la préservation de la paix dans l’ordre monétaire international bouleversé par l’émergence des « monnaies » virtuelles. [less ▲]

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See detailBrussels II ter Regulation, Commentary of Article 53 Partial Enforcement
Cuniberti, Gilles UL

in Mankowski, Peter; Magnus, Ulrich (Eds.) Brussels IIter Regulation (2023)

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See detailThe Cemetery Surveyor Application: Non-paper data Collection Methods in Luxembourg Burial Grounds
Streb, Christoph Klaus UL; Médard de Chardon, Cyrille UL; Kolnberger, Thomas UL

in Mytum, Harold; Veit, Richard (Eds.) Innovation and implementation. Critical Reflections and New Approaches to Historc Mortuary Data Collection, Analysis and Dissemination (2023)

Sepulchral culture-science requires detailed fieldwork, focusing on minutiae and spatial attributes, yielding cumbersomely large data sets. For a study on material cultures in the Luxembourg region’s ... [more ▼]

Sepulchral culture-science requires detailed fieldwork, focusing on minutiae and spatial attributes, yielding cumbersomely large data sets. For a study on material cultures in the Luxembourg region’s spaces of remembrance, we developed the Cemetery Surveyor Application (CSA) and Web Cemetery Surveyor (WCA) for Android devices and desktop computers respectively, aiming to streamline diverse data collection methodologies. The multi-platform applications provide varying affordances, benefits and limitations. The android application, operating off-line, allows the association of photographs to grave features directly, while the desktop version, accessed online, allows simultaneous collaboration. This paper describes how the tools responded to a need, their development and design process, the justifications for their operations, strengths, weaknesses, and makes recommendations for future implementations. [less ▲]

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See detail3D Ray Tracing Solver for Communication Blackout Analysis in Atmospheric Entry Missions
Giangaspero, Vincent F.; Sharma, Vatsalya; Laur et al

in Computer Physics Communications (2023)

During the atmospheric entry phase at hypersonic speed, the radio communication from/to a space vehicle can be disrupted due to the formation of a plasma sheath within the surrounding flow field. In order ... [more ▼]

During the atmospheric entry phase at hypersonic speed, the radio communication from/to a space vehicle can be disrupted due to the formation of a plasma sheath within the surrounding flow field. In order to characterize such communication blackout phases, this work presents a numerical methodology combining Computational Fluid Dynamic (CFD) simulations of ionized chemically reacting entry flows by means of Computational Object-Oriented Libraries for Fluid Dynamics (COOLFluiD) and a ray tracing analysis by means of the newly developed BlackOut RAy Tracer (BORAT). The latter is based on the numerical solution of the 3D Eikonal system of equations, offering a fast, efficient and accurate method to analyse the interaction between electromagnetic signals and weakly ionised plasmas. The proposed methodology, and BORAT in particular, is first verified on popular benchmark cases and then used to analyse the European Space Agency (ESA) 2016 ExoMars Schiaparelli entry flight into Martian environment. The corresponding results demonstrate the validity of the proposed ray tracing approach for predicting communication blackout, where signals emitted from the on-board antenna undergo reflection and refraction from the plasma surrounding the entry vehicle, and the advantage of a 3D approach for analysing real flight configuration. [less ▲]

See detailKölner Kommentar zum Aktiengesetz, Band 7 - §§ 76-94 AKtG
Zetzsche, Dirk Andreas UL; Noack, Ulrich

Book published by WoltersKluwer - 4 (2023)

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See detailATM: Black-box Test Case Minimization based on Test Code Similarity and Evolutionary Search
Pan, Rongqi; Ghaleb, Taher; Briand, Lionel UL

in IEEE/ACM International Conference on Software Engineering (2023)

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See detailA European Public Prosecutor Office to Protect the EU Financial Interests
Allegrezza, Silvia UL

in Ambos, Kai; Rackow, Peter (Eds.) The Cambridge Companion to European Criminal Law (2023)

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See detailInside out: A relational perspective on Luxembourg
Hesse, Markus UL

Report (2023)

The paper adds to the synthesis of the 2922 INURA-Annual Meeting held in Luxembourg and includes a reflection on the practice of comparative analysis and exchange of experience in urban policy and ... [more ▼]

The paper adds to the synthesis of the 2922 INURA-Annual Meeting held in Luxembourg and includes a reflection on the practice of comparative analysis and exchange of experience in urban policy and planning. The informed statements made by INURA-members on related issues in Luxembourg are considered rather different (and very much to the point), compared to the often less informed praise by visitors from outside. This peculiar outcome of 'relationality' from outside may hinder a more effective policy response to be developed within the country. [less ▲]

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See detailCancer-Associated Fibroblast Diversity Shapes Tumor Metabolism in Pancreatic CancerCancer-Associated Fibroblast Diversity Shapes Tumor Metabolism in Pancreatic Cancer
Peiffer, Raphaël; Boumahd, Yasmine; Gullo, Charlotte et al

in Cancers (2023)

Despite extensive research, the 5-year survival rate of pancreatic cancer (PDAC) patients remains at only 9%. Patients often show poor treatment response, due partly to a highly complex tumor ... [more ▼]

Despite extensive research, the 5-year survival rate of pancreatic cancer (PDAC) patients remains at only 9%. Patients often show poor treatment response, due partly to a highly complex tumor microenvironment (TME). Cancer-associated fibroblast (CAF) heterogeneity is characteristic of the pancreatic TME, where several CAF subpopulations have been identified, such as myofibroblastic CAFs (myCAFs), inflammatory CAFs (iCAFs), and antigen presenting CAFs (apCAFs). In PDAC, cancer cells continuously adapt their metabolism (metabolic switch) to environmental changes in pH, oxygenation, and nutrient availability. Recent advances show that these environmental alterations are all heavily driven by stromal CAFs. CAFs and cancer cells exchange cytokines and metabolites, engaging in a tight bidirectional crosstalk, which promotes tumor aggressiveness and allows constant adaptation to external stress, such as chemotherapy. In this review, we summarize CAF diversity and CAF-mediated metabolic rewiring, in a PDAC-specific context. First, we recapitulate the most recently identified CAF subtypes, focusing on the cell of origin, activation mechanism, species-dependent markers, and functions. Next, we describe in detail the metabolic crosstalk between CAFs and tumor cells. Additionally, we elucidate how CAF-driven paracrine signaling, desmoplasia, and acidosis orchestrate cancer cell metabolism. Finally, we highlight how the CAF/cancer cell crosstalk could pave the way for new therapeutic strategies. [less ▲]

See detailDigitised Newspapers – A New Eldorado for Historians?
Bunout, Estelle UL; Ehrmann, Maud; Clavert, Frédéric UL

Book published by De Gruyter (2022)

The application of digital technologies to historical newspapers have changed the research landscape historians were used to. An Eldorado? Despite undeniable advantages, the new digital affordance of ... [more ▼]

The application of digital technologies to historical newspapers have changed the research landscape historians were used to. An Eldorado? Despite undeniable advantages, the new digital affordance of historical newspapers also transforms research practices and confronts historians with new challenges. Drawing on a growing community of practices, the impresso project invited scholars experienced with digitised newspaper collections with the aim of encouraging a discussion on heuristics, source criticism and interpretation of digitized newspapers. This volume provides a snapshot of current research on the subject and offers three perspectives: how digitisation is transforming access to and exploration of historical newspaper collections; how automatic content processing allows for the creation of new layers of information; and, finally, what analyses this enhanced material opens up. ‘impresso - Media Monitoring of the Past’ is an interdisciplinary research project that applies text mining tools to digitised historical newspapers and integrates the resulting data into historical research workflows by means of a newly developed user interface. The question of how best to adapt text mining tools and their use by humanities researchers is at the heart of the impresso enterprise. [less ▲]

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See detailFrom Branches to Subsidiaries: Post-brexit Enforcement of Subsidiarisation in the European Union
Lupinu, Pier Mario UL

in Böffel, Lukas; Schürger, Jonas (Eds.) Digitalisation, Sustainability, and the Banking and Capital Markets Union (2022)

Detailed reference viewed: 23 (0 UL)
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See detailOpportunities for physical layer security in UAV communication enhanced with intelligent reflective surfaces
Khan, Wali Ullah UL; Lagunas, Eva UL; Ali, Zain et al

in IEEE Wireless Communications (2022), 29(06), 22-28

Unmanned aerial vehicles (UAVs) are an important component of next-generation wireless networks that can assist in high data rate communications and provide enhanced coverage.Their high mobility and ... [more ▼]

Unmanned aerial vehicles (UAVs) are an important component of next-generation wireless networks that can assist in high data rate communications and provide enhanced coverage.Their high mobility and aerial nature offer deployment flexibility and low-cost infrastructure support to existing cellular networks and provide many applications that rely on mobile wireless communications. However, security is a major challenge in UAV communications, and physical layer security (PLS) is an important technique to improve the reliability and security of data shared with the assistance of UAVs. Recently, the intelligent reflective surface (IRS) has emerged as a novel technology to extend and/or enhance wireless coverage by reconfiguring the propagation environment of communications. This article provides an overview of how the IRS can improve the PLS of UAV networks. We discuss different use cases of PLS for IRS-enhanced UAV communications and briefly review the recent advances in this area. Then, based on the recent advances, we also present a case study that utilizes alternate optimization to maximize the secrecy capacity for an IRS-enhanced UAV scenario in the presence of multiple Eves. Finally, we highlight several open issues and research challenges to realize PLS in IRS-enhanced UAV communications. [less ▲]

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See detailA Review of Radio Frequency Based Localisation for Aerial and Ground Robots with 5G Future Perspectives
Kabiri, Meisam UL; Cimarelli, Claudio UL; Bavle, Hriday UL et al

in Sensors (2022), 23(1), 188

Efficient localisation plays a vital role in many modern applications of Unmanned Ground Vehicles (UGV) and Unmanned Aerial Vehicles (UAVs), which contributes to improved control, safety, power economy ... [more ▼]

Efficient localisation plays a vital role in many modern applications of Unmanned Ground Vehicles (UGV) and Unmanned Aerial Vehicles (UAVs), which contributes to improved control, safety, power economy, etc. The ubiquitous 5G NR (New Radio) cellular network will provide new opportunities to enhance the localisation of UAVs and UGVs. In this paper, we review radio frequency (RF)-based approaches to localisation. We review the RF features that can be utilized for localisation and investigate the current methods suitable for Unmanned Vehicles under two general categories: range-based and fingerprinting. The existing state-of-the-art literature on RF-based localisation for both UAVs and UGVs is examined, and the envisioned 5G NR for localisation enhancement, and the future research direction are explored. [less ▲]