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See detailLURN: Luxembourg Ukrainian Researcher Network
Ganschow, Inna UL

Article for general public (2022)

The colloquium is organised by scientists from the Center for Contemporary and Digital History (C²DH), Professor Marten Düring and Research Scientist Inna Ganschow-Levandovitch, as well as Research ... [more ▼]

The colloquium is organised by scientists from the Center for Contemporary and Digital History (C²DH), Professor Marten Düring and Research Scientist Inna Ganschow-Levandovitch, as well as Research Facilitator Marina Laurent from the Faculty of Humanities, Social and Pedagogical Sciences (FHSE) of the University of Luxembourg. The honorary leader of the inaugural colloquium is invited professor of C²DH Volodymyr Nemchenko. The goal is to develop cooperation between the scientific communities of Luxembourg and Ukraine through building networks among fellows from Ukraine, as well as creating prospects for sustainable cooperation in the future. [less ▲]

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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 detailUplink Capacity Optimization for High Throughput Satellites using SDN and Multi-Orbital Dual Connectivity
Dazhi, Michael UL; Al-Hraishawi, Hayder UL; Mysore Rama Rao, Bhavani Shankar UL et al

in IEEE International Conference on Communications (ICC) (2022, July 11)

Dual Connectivity is a key approach to achieving optimization of throughput and latency in heterogeneous networks. Originally a technique introduced by the 3rd Generation Partnership Project (3GPP) for ... [more ▼]

Dual Connectivity is a key approach to achieving optimization of throughput and latency in heterogeneous networks. Originally a technique introduced by the 3rd Generation Partnership Project (3GPP) for terrestrial communications, it is not been widely explored in satellite systems. In this paper, Dual Connectivity is implemented in a multi-orbital satellite network, where a network model is developed by employing the diversity gains from Dual Connectivity and Carrier Aggregation for the enhancement of satellite uplink capacity. An introduction of software defined network controller is performed at the network layer coupled with a carefully designed hybrid resource allocation algorithm which is implemented strategically. The algorithm performs optimum dynamic flow control and traffic steering by considering the availability of resources and the channel propagation information of the orbital links to arrive at a resource allocation pattern suitable in enhancing uplink system performance. Simulation results are shown to evaluate the achievable gains in throughput and latency; in addition we provide useful insight in the design of multi-orbital satellite networks with implementable scheduler design. [less ▲]

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See detailThe Interaction between HLA-DRB1 and Smoking in Parkinson's Disease Revisited
Domenighetti, Cloé; Douillard, Venceslas; Sugier, Pierre-Emmanuel et al

in Movement Disorders (2022)

Abstract Background Two studies that examined the interaction between HLA-DRB1 and smoking in Parkinson's disease (PD) yielded findings in opposite directions. Objective To perform a large-scale ... [more ▼]

Abstract Background Two studies that examined the interaction between HLA-DRB1 and smoking in Parkinson's disease (PD) yielded findings in opposite directions. Objective To perform a large-scale independent replication of the HLA-DRB1 × smoking interaction. Methods We genotyped 182 single nucleotide polymorphism (SNPs) associated with smoking initiation in 12 424 cases and 9480 controls to perform a Mendelian randomization (MR) analysis in strata defined by HLA-DRB1. Results At the amino acid level, a valine at position 11 (V11) in HLA-DRB1 displayed the strongest association with PD. MR showed an inverse association between genetically predicted smoking initiation and PD only in absence of V11 (odds ratio, 0.74, 95 confidence interval, 0.59–0.93, PInteraction = 0.028). In silico predictions of the influence of V11 and smoking-induced modifications of α-synuclein on binding affinity showed findings consistent with this interaction pattern. Conclusions Despite being one of the most robust findings in PD research, the mechanisms underlying the inverse association between smoking and PD remain unknown. Our findings may help better understand this association. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society [less ▲]

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See detailGRN Mutations Are Associated with Lewy Body Dementia
Reho, Paolo; Koga, Shunsuke; Shah, Zalak et al

in Movement Disorders (2022)

ABSTRACT Background Loss-of-function mutations in GRN are a cause of familial frontotemporal dementia, and common variants within the gene have been associated with an increased risk of developing ... [more ▼]

ABSTRACT Background Loss-of-function mutations in GRN are a cause of familial frontotemporal dementia, and common variants within the gene have been associated with an increased risk of developing Alzheimer's disease and Parkinson's disease. Although TDP-43-positive inclusions are characteristic of GRN-related neurodegeneration, Lewy body copathology has also been observed in many GRN mutation carriers. Objective The objective of this study was to assess a Lewy body dementia (LBD) case–control cohort for pathogenic variants in GRN and to test whether there is an enrichment of damaging mutations among patients with LBD. Methods We analyzed whole-genome sequencing data generated for 2591 European-ancestry LBD cases and 4032 neurologically healthy control subjects to identify disease-causing mutations in GRN. Results We identified six heterozygous exonic GRN mutations in seven study participants (cases: n = 6; control subjects: n = 1). Each variant was predicted to be pathogenic or likely pathogenic. We found significant enrichment of GRN loss-of-function mutations in patients with LBD compared with control subjects (Optimized Sequence Kernel Association Test P = 0.0162). Immunohistochemistry in three definite LBD cases demonstrated Lewy body pathology and TDP-43-positive neuronal inclusions. Conclusions Our findings suggest that deleterious GRN mutations are a rare cause of familial LBD. © 2022 International Parkinson Movement Disorder Society. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA. [less ▲]

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See detailDie Grenzen zwischen Lothringen und Kurtrier auf frühneuzeitlichen Karten
Solchenbach, Karl UL

Presentation (2022, July 08)

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See detailLe parcours de vie entre défense sociale et maladie mentale de Maxence C. Etude d’un cas de dégénéré délinquant dans la Belgique du XXème siècle
Dal Zilio, Samuel UL

Scientific Conference (2022, July 08)

« L’intelligence et le sens moral d’un enfant de 8 ans », c’est par ces mots qu’en août 1933, le médecin-chef de l’Etablissement de Défense Sociale de Tournai qualifie l’état psychique de Maxence C., un ... [more ▼]

« L’intelligence et le sens moral d’un enfant de 8 ans », c’est par ces mots qu’en août 1933, le médecin-chef de l’Etablissement de Défense Sociale de Tournai qualifie l’état psychique de Maxence C., un débile mental (sic) reconnu coupable du chef de vol et d’escroquerie mais jugé incapable du contrôle de ses actions. A l’aube de ses 27 ans, ce « demi-fou » enchaîne depuis vingt ans les séjours en institution. Entre internats médico-pédagogiques, asiles d’aliénés et établissements de défense sociale, le parcours de vie de Maxence C. est jalonné de multiples interactions avec les autorités judiciaires, médicales et administratives qui tantôt le condamne à l’incarcération, tantôt favorise sa réhabilitation au sein de la société. Arrimé à cette identité de marginal dans un « monde faux et crapuleux » selon ses dires, Maxence C. peine à acquérir une pleine autonomie synonyme de liberté (re)trouvée. Travail, suivi médical, tutelle morale et accompagnement familial semblent toujours vains. Devenu sexagénaire, il demeure ainsi un « danger social » balloté entre asiles-prisons et prisons-asiles aux quatre coins du royaume. A travers l’examen minutieux d’un dossier de plusieurs centaines de pages élaboré par la Commission de défense sociale de Forest, cette communication propose de mettre en lumière la complexité de la trajectoire de vie d’un individu à la fois criminel et aliéné, visé par un dispositif hybride de sécurité et de soins. Si cette étude considère la perspective du patient à travers une histoire par le bas, elle dépasse celle-ci pour entrouvrir la possibilité d’un récit polyphonique sur des temps longs qui confronte de multiples voix (celle de l’administration et de la police, celle des médecins et des magistrats, celle du malade et de ses proches). Nourrit par les enseignements de la micro-histoire et de l’étude de cas dans la recherche historique, cette contribution offre un regard original sur l’évolution des normes qui conditionnent un mouvement vers ou, au contraire, hors de l’institution. Les phases d’entrée et de sortie des établissements sont en effet des moments charnières de l’affirmation du pouvoir des acteurs. Dès lors, quels sont les motifs à une incarcération et quelles sont les conditions à un élargissement ? Comment s’organise la prise de la décision entre les différents intervenants ? Et qui en assure le contrôle et le suivi ? Enfin, quelles sont les marges de manœuvre et les capacités d’actions du « malade » face à eux ? Cette étude d’une trajectoire de vie individuelle constitue également une opportunité de s’interroger sur l’évolution des systèmes de prise en charge des criminels malades mentaux dans le royaume au XXème siècle. Ainsi durant l’existence de Maxence C. se créent de nouvelles structures psychiatriques (dispensaires d’hygiène mentale, annexes psychiatriques dans les prisons et les hôpitaux généraux, établissements de défense sociale, etc.) se construisent des nouvelles politiques sociales (INAMI, CPAS, mutualités, etc.), s’élaborent des nouvelles législations (loi relative à la défense sociale, au handicap, à la maladie mentale), s’affirment de nouveaux métiers de la santé mentale (psychologue, infirmière psychiatrique, assistants sociaux, etc.), s’établissent de nouveaux rapports à la folie, au handicap et à la criminalité. [less ▲]

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See detailOptimising Autonomous Robot Swarm Parameters for Stable Formation Design
Stolfi Rosso, Daniel UL; Danoy, Grégoire UL

in Proceedings of the Genetic and Evolutionary Computation Conference (2022, July 08)

Autonomous robot swarm systems allow to address many inherent limitations of single robot systems, such as scalability and reliability. As a consequence, these have found their way into numerous ... [more ▼]

Autonomous robot swarm systems allow to address many inherent limitations of single robot systems, such as scalability and reliability. As a consequence, these have found their way into numerous applications including in the space and aerospace domains like swarm-based asteroid observation or counter-drone systems. However, achieving stable formations around a point of interest using different number of robots and diverse initial conditions can be challenging. In this article we propose a novel method for autonomous robots swarms self-organisation solely relying on their relative position (angle and distance). This work focuses on an evolutionary optimisation approach to calculate the parameters of the swarm, e.g. inter-robot distance, to achieve a reliable formation under different initial conditions. Experiments are conducted using realistic simulations and considering four case studies. The results observed after testing the optimal configurations on 72 unseen scenarios per case study showed the high robustness of our proposal since the desired formation was always achieved. The ability of self-organise around a point of interest maintaining a predefined fixed distance was also validated using real robots. [less ▲]

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See detailThe European Public Prosecutor Office and White-Collar Crimes
Allegrezza, Silvia UL

Scientific Conference (2022, July 08)

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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 detailDie Großregion in zwei Nachkriegszeiten. Grenzgeschichtliche Perspektiven auf Kontinuitäten und Brüche
Brüll, Christoph UL

Conference given outside the academic context (2022)

Die "sorties de guerre" 1918 und 1945 haben die heutige Großregion - wie viele andere europäische Grenzregionen - stark geprägt. Offensichtlichster Ausdruck waren diverse Verschiebungen von staatlichen ... [more ▼]

Die "sorties de guerre" 1918 und 1945 haben die heutige Großregion - wie viele andere europäische Grenzregionen - stark geprägt. Offensichtlichster Ausdruck waren diverse Verschiebungen von staatlichen Grenzen mit ihren politischen, kulturellen, sozialen und ökonomischen Folgen. Die Beziehungen zwischen Staaten, aber auch zwischen Bewohnern mussten neu konfiguriert werden. In der historischen Analyse treten neben diesen Brüchen jedoch auch Kontinuitäten auf. Der Vortrag geht dieser Thematik aus der Sicht der Grenzgeschichte nach und fragt nach der sozialen Funktion von Grenzen in der Großregion nach den beiden Weltkriegen. [less ▲]

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See detailIf there’s something strange in your [cyber]hood – who you gonna call?
Schmitz, Sandra UL

Scientific Conference (2022, July 07)

Detailed reference viewed: 37 (1 UL)
See detailRezension zu Jonas Springer, Die Bundeswehr und die Belgischen Streikräfte in Deutschland
Brüll, Christoph UL

in Wissenschaftlicher Literaturanzeiger (2022), 61(2),

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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 detailUniversity students’ friendship networks: Ambivalence and the role of attachment and personality
Schwind, Lena; Albert, Isabelle UL

in Trends in Psychology (2022), online first

Given the importance of friendships throughout the life span and the possible experience of ambivalence within these relationships, the present study aims at examining the role that attachment and ... [more ▼]

Given the importance of friendships throughout the life span and the possible experience of ambivalence within these relationships, the present study aims at examining the role that attachment and personality dimensions may play in this experience. University students (N = 87) completed an online survey, including the Big Five Inventory-10 (BFI-10), the Attachment Style Questionnaire (ASQ), as well as a two-item scale and an emotion checklist as two measures of ambivalence towards their friends. The correlation analysis revealed significant correlations between the ambivalence measures and secure attachment, fearful attachment, neuroticism, and agreeableness. A subsequent regression analysis demonstrated that fearful attachment, neuroticism, agreeableness, and gender can explain a considerable amount of variation in the degree of ambivalence. The results indicate that both certain attachment dimensions and certain personality dimensions predict the experience of ambivalence, although their importance may vary depending on the object of ambivalence. [less ▲]

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See detailEnergy Efficiency Optimization for Backscatter Enhanced NOMA Cooperative V2X Communications under Imperfect CSI
Khan, Wali Ullah UL; Jamshed, Muhammad Ali; Lagunas, Eva UL et al

in IEEE Transactions on Intelligent Transportation Systems (2022)

Automotive-Industry 5.0 will use beyond fifth-generation (B5G) technologies to provide robust, computationally intelligent, and energy-efficient data sharing among various onboard sensors, vehicles, and ... [more ▼]

Automotive-Industry 5.0 will use beyond fifth-generation (B5G) technologies to provide robust, computationally intelligent, and energy-efficient data sharing among various onboard sensors, vehicles, and other devices. Recently, ambient backscatter communications (AmBC) have gained significant interest in the research community for providing battery-free communications. AmBC can modulate useful data and reflect it towards near devices using the energy and frequency of existing RF signals. However, obtaining channel state information (CSI) for AmBC systems would be very challenging due to no pilot sequences and limited power. As one of the latest members of multiple access technology, non-orthogonal multiple access (NOMA) has emerged as a promising solution for connecting large-scale devices over the same spectral resources in B5G wireless networks. Under imperfect CSI, this paper provides a new optimization framework for energy-efficient transmission in AmBC enhanced NOMA cooperative vehicle-to-everything (V2X) networks. We simultaneously minimize the total transmit power of the V2X network by optimizing the power allocation at BS and reflection coefficient at backscatter sensors while guaranteeing the individual quality of services. The problem of total power minimization is formulated as non-convex optimization and coupled on multiple variables, making it complex and challenging. Therefore, we first decouple the original problem into two sub-problems and convert the nonlinear rate constraints into linear constraints. Then, we adopt the iterative sub-gradient method to obtain an efficient solution. For comparison, we also present a conventional NOMA cooperative V2X network without AmBC. Simulation results show the benefits of our proposed AmBC enhanced NOMA cooperative V2X network in terms of total achievable energy efficiency. [less ▲]

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See detailThe Multi-Level System of Space Mining: Regulatory Aspects and Enforcement Options
Salmeri, Antonino UL

Doctoral thesis (2022)

Few contests that space mining holds the potential to revolutionize the space sector. The utilization of space resources can reduce the costs of deep space exploration and kick-off an entirely new economy ... [more ▼]

Few contests that space mining holds the potential to revolutionize the space sector. The utilization of space resources can reduce the costs of deep space exploration and kick-off an entirely new economy in our solar system. However, whether such a revolution will happen for good or for worse depends also on the enactment of appropriate regulation. Under the right framework, space mining will be able to deliver on its promise of a new era of prosperous and sustainable space exploration. But with the wrong rules (or lack thereof), unbalanced space resource activities can destabilize the space community to a truly unprecedented scale. With companies planning mining operations on the Moon already during this decade, the regulation of space resource activities has thus become one of the most pressing and crucial topics to be addressed by the global space community. In this context, this thesis provides a first-of-its-kind, comprehensive and innovative analysis of the regulatory and enforcement options currently shaping the multi-level governance of space mining. In addition to this, the thesis also suggests a series of correctives that can improve the system and ensure the peaceful, rational, safe, and sustainable conduct of space mining. Structurally, the thesis moves from general to particular and is divided in three chapters. Chapter 1 discusses the relationship between space law and international law to contextualize the specific assessment of space mining. Chapter 2 analyses the current regulatory framework applicable to space mining, considering both the international and national levels. Finally, Chapter 3 identifies potential enforcement options, assesses them in terms of effectiveness and legitimacy, and further proposes some pragmatic correctives to reinforce the governance system. [less ▲]

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See detailBachelor Study Programms of Psychology: Moving towards more culture-inclusive curricula
Murdock, Elke UL

Scientific Conference (2022, July 07)

One facet of contemporary societies is their increasingly diverse composition. To what extent has this diversity entered the teaching of psychology to undergraduate students? The Bologna Process created ... [more ▼]

One facet of contemporary societies is their increasingly diverse composition. To what extent has this diversity entered the teaching of psychology to undergraduate students? The Bologna Process created the European Higher Education Area, defining qualifications and learning outcomes and making higher-education qualifications in Europe comparable. Study programs need to meet the standards and guidelines for the quality assurance in the European Higher Education Area (ESG 2015). In addition, national psychological associations such as the German Association for Psychology (DGPs) introduce a special catalogue of course content, study programs need to comply with to achieve quality control accreditation. The field is constantly expanding with pressure to include the latest developments, for example in the field of neuro-cognitive sciences. This makes for already very tight curricula – yet how can we enhance the awareness of and increase the competences in dealing with ethnic and cultural diversity in the next generation of psychology students? Possible avenues of building a culture-inclusive curriculum will be shown by building on the analysis of the cultural content of introductory psychology textbooks. An extensive analysis of the cultural content of introductory psychology textbooks has shown that it is possible to integrate cultural references into all topics taught in psychology. There are different ways to do so – options will be presented and discussed as well as examples of good practice provided. Importantly, teaching of culture is not relegated to specialized courses – cultural examples can be cited in any subfield or facet of psychology. In addition, some examples on how to include the cultural lens will be provided from the Bachelor of Psychology Program (BAP) taught at the University of Luxembourg. These examples are thought as impulses for a discussion towards more inclusive teaching of psychology in an increasingly diverse European cultural context. [less ▲]

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