Last 7 days
Bookmark and Share    
Full Text
See detailDepressionen am Arbeitsplatz in Luxemburg: ein Handlungsfeld
Sischka, Philipp UL; Steffgen, Georges UL

E-print/Working paper (2020)

Im Rahmen dieser Newsletter wird das aktuelle Depressionsrisiko am Arbeitsplatz in Luxemburg vorgestellt. Im Vergleich zu anderen europäischen Ländern weist Luxemburg einen relativ hohen Anteil an ... [more ▼]

Im Rahmen dieser Newsletter wird das aktuelle Depressionsrisiko am Arbeitsplatz in Luxemburg vorgestellt. Im Vergleich zu anderen europäischen Ländern weist Luxemburg einen relativ hohen Anteil an Arbeitnehmern mit Depressionsrisiko. Weibliche Arbeitnehmer sind im Vergleich zu männlichen geringfügig häufiger von einem Depressionsrisiko betroffen. Differenziert nach Beruf sind vor allem Hilfsarbeitskräfte, Manager sowie Arbeitnehmer in Dienstleistungsberufen besonders von einem Depressionsrisiko betroffen. Arbeitnehmer mit Depressionsrisiko berichten über nachteilige Arbeitsbedingungen und weisen auch eine geringere Arbeitsplatzzufriedenheit sowie weitere gesundheitliche Probleme auf. [less ▲]

Detailed reference viewed: 29 (1 UL)
Full Text
Peer Reviewed
See detailThe community economies of Esch-sur-Alzette: rereading the economy of Luxembourg
Taylor Aiken, Gerald UL; Schulz, Christian UL; Schmid, Benedikt UL

in Voluntary Sector Review (2020)

This article outlines the community economies of Esch-sur-Alzette, the ‘second city’ of Luxembourg. ‘Community economies’ – an approach outlined by J.K. Gibson-Graham – draws attention to alternative ... [more ▼]

This article outlines the community economies of Esch-sur-Alzette, the ‘second city’ of Luxembourg. ‘Community economies’ – an approach outlined by J.K. Gibson-Graham – draws attention to alternative narratives of economic development and the representation of economic identity. Despite (the Grand Duchy of) Luxembourg’s reputation as a European Union centre, with substantial finance and tax activity, Esch-sur-Alzette is a post-industrial and multilingual melting pot. The alternative narrative here is of the multiple community-based organisations and movements in Esch-sur-Alzette: an energy cooperative, urban gardening, an upcycling clothing factory, a local food shop and restaurant, and vibrant civil society discussions and interventions in (inter)national politics. Civil society, while central to both understandings of grassroots environmental action and the community economies framework of Gibson-Graham, takes on quite a different flavour in Luxembourg. This article then takes the case of Luxembourg to reread the relationship of the state to the so-called third sector, in doing so defending the political possibilities of community economies. [less ▲]

Detailed reference viewed: 55 (2 UL)
Full Text
Peer Reviewed
See detailExploring Cultural Identity in a Multicultural Context—the Special Case of Luxembourg
Bichler, Samantha; Albert, Isabelle UL; Barros Coimbra, Stephanie UL et al

in Human Arenas (2020), online first

In light of globalization and increased cultural diversity, the question of cultural identity becomes particularly salient in many societies today. Whereas most studies have concentrated on cultural ... [more ▼]

In light of globalization and increased cultural diversity, the question of cultural identity becomes particularly salient in many societies today. Whereas most studies have concentrated on cultural identity of immigrants, less is known about the identity constructions of non-immigrants and receiving country nationals living in a multicultural setting. The Grand Duchy of Luxembourg with a foreign population of 48% provides an excellent example case here. The present study examined the cultural identity of two generations of native Luxembourgers, drawing on a content analysis of qualitative interviews with N = 18 participants belonging to nine family dyads, each composed of one (young) adult child and one parent. As Luxembourg’s cultural diversity has increased continuously in the last decades, we focussed here on similarities and differences between (young) adults and their parents in order to find out in how far age (i.e., different points in the individual life span) or generation (i.e., growing up in different times and historical contexts) might be highlighted in their cultural identity constructions. Five main domains pertaining to Luxembourger’s cultural identity were found through qualitative content analysis: ‘the Luxembourgish language’, ‘Belongingness to Luxembourg and the love for Luxembourg as a homeland’, ‘Europeanization and multiculturalism in Luxembourg’, ‘Representing Luxembourg as a native in international contexts’ and ‘Luxembourgish traditions and history’. While the older generation focused more on the feeling of belongingness to their home country, the younger generation made more specific links to Europe and multiculturalism. Practical and theoretical implications are discussed. [less ▲]

Detailed reference viewed: 9 (1 UL)
Full Text
Peer Reviewed
See detailOptimum Autofrettage Pressure of Hydrogen Valve Using Finite Element and Fatigue Analysis
Kedziora, Slawomir UL; Cao, Thanh Binh

in Engineering (2020), 12(01), 1--24

The presented article shows an estimation method of optimum autofrettage pressure taking into consideration subsequent cyclic loading. An autofrettage process is used in pressure vessel applications for ... [more ▼]

The presented article shows an estimation method of optimum autofrettage pressure taking into consideration subsequent cyclic loading. An autofrettage process is used in pressure vessel applications for strength improvement. The process relies on applying massive pressure that causes internal portions of the part to yield plastically, resulting in internal compressive residual stresses when pressure is released. Later applied working pressure (much lower than autofrettage pressure) creates stress reduced by the residual compressive stress improving the structural performance of the pressure vessels. The optimum autofrettage pressure is a load that maximizes the fatigue life of the structure at the working load. The estimation method of that pressure of a hydrogen valve is the subject of the presented work. Finite element and fatigue analyses were employed to investigate the presented problem. An automated model was developed to analyze the design for various autofrettage pressures. As the results of the procedure, the optimum autofrettage pressure is determined. The research has shown that the developed method can profitably investigate the complex parts giving the autofrettage load that maximizes the fatigue life. The findings suggest that the technique can be applied to a large group of products subjected to the autofrettage process. [less ▲]

Detailed reference viewed: 60 (0 UL)
Full Text
Peer Reviewed
See detailReal Time Holding Control for Multiline Networks
Laskaris, Georgios UL; Cats, Oded; Jenelius, Erik et al

Poster (2020, January 12)

We introduce a rule based multiline holding criterion for regularity in branch and trunk networks accounting for all passenger groups. On the shared transit corridor, we consider synchronization at the ... [more ▼]

We introduce a rule based multiline holding criterion for regularity in branch and trunk networks accounting for all passenger groups. On the shared transit corridor, we consider synchronization at the merging or the diverging stop. The decision between holding for regularity or synchronization is taken by comparing the expected passenger cost of each control action. The proposed criterion is tested through simulation in a synthetic double fork network with different shares of transferring passengers, control schemes for regularity and synchronization. The results show that multiline control outperforms the state of the art schemes at the network level, stemming from benefits occurring at the first part of the route and the shared transit corridor and a 3.5% more stable joint headway compared to the other schemes. Additionally, it is advised to perform the synchronization at the diverging stop, as it proves to result in a more stable transferring time equal to the joint frequency of the corridor while reducing the transfer time variability up to -42.7%. [less ▲]

Detailed reference viewed: 62 (5 UL)
Full Text
Peer Reviewed
See detailComprendre l'état du parlementarisme contemporain en Europe
Poirier, Philippe UL

in Le Parlement depuis 2008 : Renforcement, statu quo ou retour au(x) fondement(s) de la Ve République (2020, January 10)

Cet ouvrage reprend les actes du colloque d'Aix-en-Provence de 2018 consacré au bilan de dix ans de mise en oeuvre de la révision constitutionnelle de 2008 dans son volet parlementaire. Faisant intervenir ... [more ▼]

Cet ouvrage reprend les actes du colloque d'Aix-en-Provence de 2018 consacré au bilan de dix ans de mise en oeuvre de la révision constitutionnelle de 2008 dans son volet parlementaire. Faisant intervenir des acteurs de la révision de 2008, des parlementaires, des membres du Conseil constitutionnel, des hauts fonctionnaires des assemblées et des universitaires, ce colloque a été construit autour des trois fonctions essentielles du Parlement : l'élaboration de la loi, le contrôle de l'exécutif et l'évaluation des politiques publiques afin de répondre à cette question : un changement pour quoi faire ? [less ▲]

Detailed reference viewed: 22 (1 UL)
Full Text
See detailExperimentelle Untersuchungen und analytischen Modellierung von adiabaten Siedevorgängen in Naturumlaufsystemen
Haag, Michel UL

Doctoral thesis (2020)

Modern nuclear reactors increasingly use passive safety systems to ensure the integrity of the containment in the event of an accident. Natural circulation systems allow passive heat removal from the ... [more ▼]

Modern nuclear reactors increasingly use passive safety systems to ensure the integrity of the containment in the event of an accident. Natural circulation systems allow passive heat removal from the containment to the environment. One of their disadvantages is that instabilities develop as soon as evaporation occurs in the system. This thesis investigates instabilities in two-phase natural circulation systems. After comprehensive literature review on existing test facilities, the first part of this work presents experimental investigations on the stability behaviour of natural circulation systems. To conduct these investigations, the INTRAVIT test facility was designed and constructed at the University of Luxembourg. INTRAVIT offers both a high degree of flexibility in the design of the pipelines and the advantage of a direct, electrically controllable heat supply. Two measurement campaigns were carried out. During the first campaign, the influence of the heating tube inclination angle on the instabilities was investigated at constant riser pipe length. During the second measurement campaign, the influence of the riser pipe length and the influence of the flow resistance in the downcomer pipe were investigated at a constant inclination angle of the heating tube. For these investigations, temperatures, mass flow and the distribution of void in the riser pipe were analysed. In addition, pressure response during the instabilities was measured to investigate the pressure shocks caused by water hammering. The second part of this work develops an analytical model to decribe evaporation processes in adiabatic pipes. The model consists of several sub models that calculate the interfacial surface density and the evaporation rate as a function of the flow pattern. An integrated nucleation model calculates the onset of the evaporation. The derived model was implemented in the system code ATHLET. Experiments from the INTRAVIT measurement campaigns were then modelled using the new evaporation model as well as the standard evaporation model. Both were compared with the measurement data. The design and construction of the INTRAVIT test facility is a foundation for future research on instabilities in natural circulation systems. Moreover, a new evaporation model is presented, which can easily be adapted and refined by modifying individual sub models. [less ▲]

Detailed reference viewed: 7 (2 UL)
Full Text
Peer Reviewed
See detailThe ATAD and the CCTB
Haslehner, Werner UL

in Bizioli, Gianluigi; Grandinetti, Mario; Parada, Leopoldo (Eds.) et al Corporate Taxation, Group Debt Funding and Base Erosion - New Perspectives on the EU Anti-Tax Avoidance Directive (2020)

This short chapter analyses the relationship between the interest limitation rules laid down in the Anti-Tax Avoidance Directive (ATAD) and the Proposed Directive on a Common Corporate Tax Base (CCTB ... [more ▼]

This short chapter analyses the relationship between the interest limitation rules laid down in the Anti-Tax Avoidance Directive (ATAD) and the Proposed Directive on a Common Corporate Tax Base (CCTB). Both are substantially congruent with very few differences in their content. Nevertheless, there are several aspects of the relationship between the two directives that raise fundamental questions as to their respective impacts on national law. Accordingly, this contribution aims to highlight, first, the general relationship between European Union (EU) directives, second, the specific relationship between the ATAD and the CCTB – if and when it is adopted – and, third, comments on the few variations in their respective provisions on interest limitation. [less ▲]

Detailed reference viewed: 41 (2 UL)
Full Text
Peer Reviewed
See detailBosonization for Fermions and Parafermions
Schmidt, Thomas UL

in European Physical Journal. Special Topics (2020), 229

Parafermions are fractional excitations which can be regarded as generalizations of Majorana bound states, but in contrast to the latter they require electron-electron interactions. Compared to Majorana ... [more ▼]

Parafermions are fractional excitations which can be regarded as generalizations of Majorana bound states, but in contrast to the latter they require electron-electron interactions. Compared to Majorana bound states, they offer richer non-Abelian braiding statistics, and have thus been proposed as building blocks for topologically protected universal quantum computation. In this review, we provide a pedagogical introduction to the field of parafermion bound states in one-dimensional systems. We present the necessary theoretical tools for their study, in particular bosonization and the renormalization-group technique, and show how those can be applied to study parafermions. [less ▲]

Detailed reference viewed: 28 (0 UL)
Full Text
See detailResearch Handbook on European Union Taxation Law
Panayi, Christiana HJI; Haslehner, Werner UL; Traversa, Edoardo

Book published by Edward Elgar (2020)

Offering a comprehensive exploration of EU taxation law, this engaging Research Handbook investigates the relevant legal principles in the context of both direct and indirect taxation. The important ... [more ▼]

Offering a comprehensive exploration of EU taxation law, this engaging Research Handbook investigates the relevant legal principles in the context of both direct and indirect taxation. The important issues and debates arising from these general principles are expertly analysed, with leading scholars examining the status quo as well as setting out an agenda for future research. [less ▲]

Detailed reference viewed: 7 (0 UL)
Full Text
Peer Reviewed
See detailTransfer pricing rules and State aid law
Haslehner, Werner UL

in Panayi, Christiana HJI; Haslehner, Werner; Traversa, Edoardo (Eds.) Research Handbook European Union Taxation Law (2020)

This contribution addresses the interaction of State aid law with transfer pricing rules. A number of high-profile investigations into transfer pricing arrangements approved by Member States’ authorities ... [more ▼]

This contribution addresses the interaction of State aid law with transfer pricing rules. A number of high-profile investigations into transfer pricing arrangements approved by Member States’ authorities, including for companies like Amazon, Apple, and Starbucks has sparked fierce debate over the existence of an EU principle of “arm’s length” taxation and its possible content. The chapter examines this debate and issues pertaining to the relationship between State aid law and double taxation treaties, justifications on the basis of providing double tax relief or protection from tax avoidance, and the scope of administrative discretion that State aid law needs to accord in a highly technical area of national law such as transfer pricing. [less ▲]

Detailed reference viewed: 14 (1 UL)
Full Text
Peer Reviewed
See detailDeepVI: A Novel Framework for Learning Deep View-Invariant Human Action Representations using a Single RGB Camera
Papadopoulos, Konstantinos UL; Ghorbel, Enjie UL; Oyedotun, Oyebade UL et al

in IEEE International Conference on Automatic Face and Gesture Recognition, Buenos Aires 18-22 May 2020 (2020)

Detailed reference viewed: 48 (8 UL)
Full Text
Peer Reviewed
See detailReduced sialylation triggers homeostatic synapse and neuronal loss in middle-aged mice
Klaus, Christine; Hansen, Jan N.; Ginolhac, Aurélien UL et al

in Neurobiology of Aging (2020)

Sialic acid-binding receptors (Siglecs) are linked to neurodegenerative processes, but the role of sialic acids in physiological aging is still not fully understood. We investigated the impact of reduced ... [more ▼]

Sialic acid-binding receptors (Siglecs) are linked to neurodegenerative processes, but the role of sialic acids in physiological aging is still not fully understood. We investigated the impact of reduced sialylation in the brain of mice heterozygous for the enzyme glucosamine-2-epimerase/N-acetylmannosamine kinase (GNE+/-) that is essential for sialic acid biosynthesis. We demonstrate that GNE+/- mice have hyposialylation in different brain regions, less synapses in the hippocampus and reduced microglial arborization already at 6 months followed by increased loss of neurons at 12 months. A transcriptomic analysis revealed no pro-inflammatory changes indicating an innate homeostatic immune process leading to the removal of synapses and neurons in GNE+/- mice during aging. Crossbreeding with complement C3-deficient mice rescued the earlier onset of neuronal and synaptic loss as well as the changes in microglial arborization. Thus, sialic acids of the glycocalyx contribute to brain homeostasis and act as a recognition system for the innate immune system in the brain. [less ▲]

Detailed reference viewed: 23 (2 UL)
Full Text
Peer Reviewed
See detailLosing ground in the income hierarchy: relative deprivation revisited
D'Ambrosio, Conchita UL; Bossert, Walter

in Journal of Economic Inequality (2020), 18

The paper discusses a one-parameter generalization of individual relative deprivation measures to a two-period setting that differs from earlier approaches. The parameter is, by definition, independent of ... [more ▼]

The paper discusses a one-parameter generalization of individual relative deprivation measures to a two-period setting that differs from earlier approaches. The parameter is, by definition, independent of the income distributions under consideration—it is to be chosen by a social planner. Its value has an intuitive interpretation: it represents the additional weight assigned to the income shortfalls associated with agents who passed the individual in question when moving from yesterday’s income distribution to today’s. Therefore, the choice of this parameter represents an important value judgment on the part of a social planner regarding the relative impact of being left behind. As a special case, it is illustrated how the well-known Yitzhaki index can be extended to this environment. [less ▲]

Detailed reference viewed: 17 (0 UL)
See detailThe role of language and languages in doctoral education: A transversal perspective
Hu, Adelheid UL; Araujo E Sa, Maria Helena; Pinto, Andreia et al

in Byram, Mike; Stoicheva, Maria (Eds.) The Doctorate as Experience in Europe and Beyond (2020)

Detailed reference viewed: 24 (4 UL)
See detailPolitische Orientierungen und das Verhältnis zu Gewalt bei linksaffinen Jugendlichen
Kühnel, Wolfgang; Willems, Helmut UL

in Meinhardt, Anne-Kathrin; Redlich, Birgit (Eds.) Linke Militanz. Pädagogische Arbeit in Theorie und Praxis (2020)

Weshalb engagieren sich junge Menschen in politischen Gruppen und sozialen Bewegungen? Welche gesellschaftlichen und politischen Ziele verfolgen sie? Wie legitimieren sie Gewalt und welche Erfahrungen ... [more ▼]

Weshalb engagieren sich junge Menschen in politischen Gruppen und sozialen Bewegungen? Welche gesellschaftlichen und politischen Ziele verfolgen sie? Wie legitimieren sie Gewalt und welche Erfahrungen machen sie mit ihr? [less ▲]

Detailed reference viewed: 12 (0 UL)