Last 7 days
Bookmark and Share    
Full Text
Peer Reviewed
See detailModel Uncertainty and Pricing Performance in Option Valuation
Bams, Dennis; Blanchard, Gildas; Lehnert, Thorsten UL

in The Journal of Derivatives (in press)

Detailed reference viewed: 46 (2 UL)
Full Text
Peer Reviewed
See detailMoney and Happiness: Income, Wealth and Subjective Well-being
D'Ambrosio, Conchita UL; Lepinteur, Anthony UL; Jäntti, Markus

in Social Indicators Research (in press)

We examine the complex relationship between money and happiness. We find that both permanent income and wealth are better predictors of life satisfaction than current income and wealth. They matter not ... [more ▼]

We examine the complex relationship between money and happiness. We find that both permanent income and wealth are better predictors of life satisfaction than current income and wealth. They matter not only in absolute terms but also in comparative terms. However, their relative impacts differ. The first exerts a comparison effect – the higher the permanent income of the reference group, the lower life satisfaction – the second exerts an information effect – the higher the permanent wealth of the reference group, the higher life satisfaction. We also show that negative transitory shocks to income reduce life satisfaction while transitory shocks to wealth have no effect. Lastly, we analyse the effects of their components and find that not all of them predict life satisfaction: permanent taxes do not matter, while only the value of permanent real estate, financial and business assets do. Finally, we use quantile regression and analyse to what extent our results vary along the well-being distribution, finding the impacts to be larger at lower levels of life satisfaction. [less ▲]

Detailed reference viewed: 98 (10 UL)
Peer Reviewed
See detailThe Unblinking Eye: Labour Sciences and the Mechanical Registration of the Human Body
Herman, Frederik; Priem, Karin UL

in Smeyers, Paul; Depaepe, Marc (Eds.) (Re)Presentation, Dissemination and Reception: Purposes, Processes and Practices of Educational Research (in press)

Detailed reference viewed: 23 (1 UL)
Peer Reviewed
See detailStereotypen hinsichtlich Schülern mit sonderpädagogischem Förderbedarf: Lehrerüberzeugen, -erwartungen und –gefühle
Pit-Ten Cate, Ineke UL; Krischler, Mireille UL

in Glock, Sabine; Kleen (Eds.) Stereotype in der Schule (in press)

Dieses Kapitel geht der Frage nach, ob Lehrerüberzeugungen und –erwartungen, je nach sonderpädagogischem Förderbedarf variieren. Außerdem wurde deren Einfluss sowohl auf die Gefühle bei Auseinandersetzung ... [more ▼]

Dieses Kapitel geht der Frage nach, ob Lehrerüberzeugungen und –erwartungen, je nach sonderpädagogischem Förderbedarf variieren. Außerdem wurde deren Einfluss sowohl auf die Gefühle bei Auseinandersetzung mit der Inklusion von unterschiedlichen Schüler*innen, als auch auf die persönliche Bereitschaft Inklusion umzusetzen, untersucht. Die Studien basieren einerseits auf dem Dualen Prozessmodel der sozialen Kognition und betrachten andererseits das Stereotype-Content-Modell, laut dem Wärme und Kompetenz über 80% der Unterschiedlichkeiten in der Personenwahrnehmung erklären. Die Ergebnisse zeigten, dass Überzeugungen und Erwartungen von dem Typ von Förderbedarf beeinflusst werden. Positivere Überzeugungen bezüglich der Schülermerkmale (Wärme und Kompetenz) und höhere Leistungserwartungen waren hierbei mit positiveren Gefühlen und einer stärker ausgeprägten persönlichen Bereitschaft, die Schüler*innen mit sonderpädagogischem Förderbedarf zu inkludieren, verbunden. Abschließend werden die daraus resultierenden Konsequenzen für die Lehreraus- und -weiterbildung abgeleitet und diskutiert. [less ▲]

Detailed reference viewed: 31 (0 UL)
Peer Reviewed
See detailDie Einstellungen von Lehrpersonen gegenüber Schüler*innen ethnischer Minoritäten und Schüler*innen mit sonderpädagogischem Förderbedarf: Ein Forschungsüberblick
Glock, Sabine; Kleen, Hannah; Krischler, Mireille UL et al

in Glock, Sabine; Kleen, Hannah (Eds.) Stereotype in der Schule (in press)

Detailed reference viewed: 31 (1 UL)
Full Text
Peer Reviewed
See detailAcross the Waves: How the United States and France shaped the International Age of Radio (book review)
Legay, Richard UL

in Historical Journal of Film, Radio and Television (in press)

Detailed reference viewed: 32 (0 UL)
Peer Reviewed
See detailAkademische Profile von Schüler*innen zur Bestimmung der Akkuratheit von Schulübergangsempfehlungen – eine Validierungsstudie
Pit-Ten Cate, Ineke UL; Hörstermann, Thomas UL

in Glock, Sabine; Kleen, Hannah (Eds.) Stereotype in der Schule (in press)

In verschiedenen europäischen Ländern führt der Wechsel zur Sekundarschule zu einer bedeutsamen Aufgliederung der Bildungswege, welche ein unterschiedlich hohes Schulleistungsniveau der Schüler*innen ... [more ▼]

In verschiedenen europäischen Ländern führt der Wechsel zur Sekundarschule zu einer bedeutsamen Aufgliederung der Bildungswege, welche ein unterschiedlich hohes Schulleistungsniveau der Schüler*innen voraussetzen. Die Akkuratheit der Zuweisung von Sekundarschulformen bestimmt nicht nur die Optionen der Schüler*innen bei späteren Übergangen im Bildungssystem, sondern beeinflusst auch den weiteren beruflichen und persönlichen Werdegang der Schüler*innen. Schüler*innen mit Migrationshintergrund sind auf die höheren sekundären Schulformen unterrepräsentiert. Inwiefern diese Unterrepräsentation auf stereotypgeprägte Leistungserwartungen zurückzuführen ist, ist bis jetzt unklar, denn es lisgt kein Kriterium vor, um die Urteilsakkuratheit adäquat zu messen. In diesem Kapitel wird ein Ansatz beschrieben, ein solches Akkuratheitskriterium zu entwickeln und zu validieren. In einem zweiten Schritt wird das Kriterium angewendet, um den Zusammenhang zwischen stereotypgeprägten Erwartungen und der Akkuratheit der Übergangsentscheidungen zu untersuchen. Das Kriterium erweist sich als valides Maß und könnte so einen wertvollen Ansatz für weitere Untersuchungen der Akkuratheit von Lehrerurteilen darstellen. Obwohl Lehrer*innen im Allgemeinen eine hohe Urteilsakkuratheit aufweisen, bestätigen die Befunde dennoch die Zusammenhänge zwischen stereotypgeprägten Erwartungen und Urteilsverzerrungen. [less ▲]

Detailed reference viewed: 25 (1 UL)
Full Text
Peer Reviewed
See detailThe Role of Commercial Radio Stations in the Media Vacuum of Mai 68 in Paris
Legay, Richard UL

in VIEW Journal of European Television History and Culture (in press)

Detailed reference viewed: 24 (0 UL)
Full Text
Peer Reviewed
See detailAssessing Task-orientation Potential in Primary Science Textbooks: Toward a New Approach
Andersen, Katja Natalie UL

in Journal of Research Science in Teaching (in press)

Task orientation is currently a prominent concept under discussion in primary school di-dactics. It focuses on tasks along which pupils acquire competences on distinct levels of compe-tence. The ... [more ▼]

Task orientation is currently a prominent concept under discussion in primary school di-dactics. It focuses on tasks along which pupils acquire competences on distinct levels of compe-tence. The qualitative empirical study ANONYMOUS pursues the question which conception of task orientation is present in current textbooks in primary science education. The study follows two foci: (i) the introduction of a new category system for the analysis of the task-orientation potential of tasks, based on the further development of existing category systems for analyzing tasks; and (ii) the analysis of 994 task statements in science textbooks with respect to the di-dactic quality of their task orientation. The sample included nine primary science textbooks, four from Germany and five from Luxembourg. Textbooks were selected from the most fre-quently sold series in the respective country. All tasks of the textbooks were analyzed deduc-tively and inductively by four coders in three steps: (i) identifying tasks with task-oriented po-tential; (ii) itemizing different types of task-orientation potential; and (iii) comparing the text-books with respect to country- and period-specific manifestations of task orientation. Analysis indicated that (i) there are few tasks which meet the criteria of task orientation; (ii) distinct types of task orientation can be generated, among which implicit forms dominate; and (iii) dif-ferences occur in the characteristics of task orientation between older and newer textbooks as well as between German and Luxembourgish ones. Central points of discussion ensue from this: the need to develop models for social and cognitive activation for tasks, challenges for school management and professional development for teachers, and support for pupils—in particular high achieving heterogenization. [less ▲]

Detailed reference viewed: 34 (1 UL)
Full Text
Peer Reviewed
See detailCentral Banks and Regulation of Cryptocurrencies
Nabilou, Hossein UL; Prüm, André UL

in Review of Banking & Financial Law (in press)

This paper explores the interface between central banks and cryptocurrencies. Focusing on the European Central Bank (ECB), it identifies the potential threats that the rise of cryptocurrencies would pose ... [more ▼]

This paper explores the interface between central banks and cryptocurrencies. Focusing on the European Central Bank (ECB), it identifies the potential threats that the rise of cryptocurrencies would pose to the basic and ancillary tasks of the ECB, in particular, its monetary policy operations and the exercise of its supervisory functions over credit institutions and payment systems. The paper finds that cryptocurrencies can potentially have both direct – through their potential impact on the price stability and monetary policy, and central banks’ monopoly over issuing base money – and indirect effects on central banks, mainly through the institutions and systems that fall under the ECB’s scope of competence. To address the challenges posed by cryptocurrencies, the ECB may take both legal (including supervisory and oversight) measures and non-legal (or technical) measures. With respect to technical measures, the ECB - to the extent falling within the scope of its competence - may focus on improving the efficiency of existing payment systems and addressing the existing frictions in market infrastructures to indirectly affect the cryptocurrency markets. Alternatively, it can venture into issuing Central Bank Digital Currency (CBDC). Regarding legal measures, central banks could envisage regulating cryptocurrencies either directly or indirectly. However, as the most significant potential impact of cryptocurrencies on central banks is likely to be indirect through the impact of cryptocurrencies on the banking and payment systems, and given the limitations on the ECB’s mandate and its regulatory and supervisory tools, it is apposite for the ECB to consider using indirect strategies and tools to influence cryptocurrency markets. This indirect approach can be implemented through the ECB’s existing supervisory and oversight powers over the banking and payment systems. This paper specifies the direct and indirect measures and assesses their merits in addressing the concerns about cryptocurrencies. [less ▲]

Detailed reference viewed: 86 (2 UL)
Full Text
Peer Reviewed
See detailSchnëssen. Surveying language dynamics in Luxembourgish with a mobile research app
Entringer, Nathalie UL; Gilles, Peter UL; Martin, Sara UL et al

in Linguistic Vanguard (in press)

The mobile app Schnëssen is intended to establish a state-of-the-art digital platform to collect data on the present-day language situation of Luxembourgish by means of crowd-sourcing and to document and ... [more ▼]

The mobile app Schnëssen is intended to establish a state-of-the-art digital platform to collect data on the present-day language situation of Luxembourgish by means of crowd-sourcing and to document and present results to a broader public. Users can participate in a large set of audio recordings tasks and in sociolinguistic surveys. By presenting all audio recordings via an interactive map, participants can explore the language variation of their language. In the first year of data collection, around 210.000 recordings could be collected for numerous variation phenomena from all linguistic levels and over 2800 sociolinguistic questionnaires have been filled out. The app allowed us to compile thus the largest systematic spoken language corpus of Luxembourgish. [less ▲]

Detailed reference viewed: 40 (7 UL)
Full Text
Peer Reviewed
See detailDie Verlustlisten des Ersten Weltkriegs als historisches namengeographisches Korpus
Flores Flores, W. Amaru; Gilles, Peter UL

in Sammelband 'Namengeographie' (in press)

Für die großflächige, deutschlandweite Kartierung und Analyse der Familiennamen (FamilienN, im Folgenden steht „N“ für Name(n)) stellt bis heute die nach Postleitzahlen gegliederte Datenbank der ... [more ▼]

Für die großflächige, deutschlandweite Kartierung und Analyse der Familiennamen (FamilienN, im Folgenden steht „N“ für Name(n)) stellt bis heute die nach Postleitzahlen gegliederte Datenbank der Telefonanschlüsse, wie sie im Telefonbuch der Deutschen Telekom von 2005 verzeichnet sind die Datenbasis des Projekts 'Deutscher Familiennamenatlas' dar. Im Folgenden werden wir eine neue umfangreiche Datenbasis der deutschen FamilienN vorstellen, die die bisherige um eine historische Dimension erweitern wird. Es handelt sich um die Datenbank der Verlustlisten der Kriegsteilnehmer des Ersten Weltkriegs, die mit ihren rund 7,7 Millionen Namenträgern aus allen Gebieten des damaligen Deutschen Reichs die gesamte FamilienN-Landschaft des ausgehenden 19. Jh. umfassen. Mit dieser neuen Datenbasis wird es möglich sein, die heutige FamilienN-Landschaft mit derjenigen vor 130 Jahren zu vergleichen und damit zum ersten Mal die regionale Festigkeit bzw. Veränderung der FamilienN zu erforschen. Unberührt von den großen europäischen Migrationswellen des 20. Jh. und erst am Beginn der durch die Industrialisierung beschleunigten Urbanisierung, repräsentieren die Verlustlisten die Namenverteilung einer im Vergleich zu heute deutlich weniger mobilen, überwiegend ländlichen Gesellschaft. Über diese neue Kartierungsgrundlage hinaus leisten die Verlustlisten wertvolle Dienste bei der Etymologisierung, bei sprachgeschichtlichen, dialektologischen oder graphematischen Fragestellungen sowie für die Migrationsforschung. [less ▲]

Detailed reference viewed: 37 (0 UL)
Full Text
Peer Reviewed
See detailThe Integration Between National and International Regulation of Space Resources Activities Under Public International Law
Salmeri, Antonino UL

in Journal of Space Law (in press), 43(1),

In light of the current tendency of regulating space resources activities through national legislation, this article addresses the validity of such emerging practice under Public International Law (PIL ... [more ▼]

In light of the current tendency of regulating space resources activities through national legislation, this article addresses the validity of such emerging practice under Public International Law (PIL). To this end, the article first recalls the traditional debate between Monism and Dualism about the relationship between municipal and international law. This analysis is further completed by focusing also on the counter-position between two cornerstones of PIL, the principles of State sovereignty and Pacta Sunt Servanda. Next, the article assesses the exposure of national law “integrating” international law, focusing on ex post conflicts between the two sources as regulated by Article 27 of the Vienna Convention on the Law of Treaties. Accordingly, the article will show that States not willing to adapt their national laws will have to face international responsibility under the Draft Articles on State Responsibility for Internationally Wrongful Acts. Based on the above, the article then presents the related legal consequences, both at the international and national levels. Finally, the article closes by assessing the role of interpretative declarations and the defense of persistent objector as possible legal tools for dissenting States. [less ▲]

Detailed reference viewed: 25 (0 UL)
Full Text
Peer Reviewed
See detailA stochastic Galerkin cell-based smoothed finite element method (SGCS-FEM)
Mathew, Tittu; Beex, Lars UL; Bordas, Stéphane UL et al

in International Journal of Computational Methods (in press)

In this paper, the cell based smoothed finite element method is extended to solve stochastic partial diff erential equations with uncertain input parameters. The spatial field of Young's moduli and the ... [more ▼]

In this paper, the cell based smoothed finite element method is extended to solve stochastic partial diff erential equations with uncertain input parameters. The spatial field of Young's moduli and the corresponding stochastic results are represented by Karhunen-Lo eve expansion and polynomial chaos expansion, respectively. The Young's Modulus of structure is considered to be random for stochastic static as well as free vibration problems. Mathematical expressions and the solution procedure are articulated in detail to evaluate the statistical characteristics of responses in terms of static displacements and free vibration frequencies. The feasibility and eff ectiveness of the proposed SGCS-FEM method in terms of accuracy and lower requirement on the mesh size in the solution domain over that of conventional FEM for stochastic problems are demonstrated by carefully chosen numerical examples. From the numerical study, it is inferred that the proposed framework is computationally less demanding without compromising accuracy. [less ▲]

Detailed reference viewed: 41 (0 UL)
Full Text
Peer Reviewed
See detailA Multilayer Low-Altitude Airspace Model for UAV Traffic Management
Samir Labib, Nader UL; Danoy, Grégoire UL; Musial, Jedrzej et al

in Samir Labib, Nader; Danoy, Grégoire; Musial, Jedrzej (Eds.) et al 9th ACM Symposium on Design and Analysis of Intelligent Vehicular Networks and Applications (DIVANet '19) (in press)

Over the recent years, Unmanned Aerial Vehicles' (UAVs) technology developed rapidly. In turn shedding light on a wide range of potential civil and commercial applications ranging from mapping and ... [more ▼]

Over the recent years, Unmanned Aerial Vehicles' (UAVs) technology developed rapidly. In turn shedding light on a wide range of potential civil and commercial applications ranging from mapping and surveillance, parcel delivery to more demanding ones that require UAVs to operate in heterogeneous swarms. However, with the great advantages UAVs bring, they are expected to soon dominate the shared, low-altitude airspace over populated cities, introducing multiple new research challenges in safely managing the unprecedented traffic demands. The main contribution of this work is addressing the complex problem of UAV traffic management at an abstract level by proposing a structure for the uncontrolled low-altitude airspace. The paper proposes a model of the airspace as a weighted multilayer network of nodes and airways and presents a set of experimental simulations of UAV traffic for the verification and validation of the model. Finally, the paper outlines our intended future work. [less ▲]

Detailed reference viewed: 65 (14 UL)
Full Text
Peer Reviewed
See detailAn efficient approach towards the source-target control of Boolean networks
Paul, Soumya UL; Su, Cui UL; Pang, Jun UL et al

in IEEE/ACM Transactions on Computational Biology and Bioinformatics (in press)

We study the problem of computing a minimal subset of nodes of a given asynchronous Boolean network that need to be perturbed in a single-step to drive its dynamics from an initial state to a target ... [more ▼]

We study the problem of computing a minimal subset of nodes of a given asynchronous Boolean network that need to be perturbed in a single-step to drive its dynamics from an initial state to a target steady state (or attractor), which we call the source-target control of Boolean networks. Due to the phenomenon of state-space explosion, a simple global approach that performs computations on the entire network, may not scale well for large networks. We believe that efficient algorithms for such networks must exploit the structure of the networks together with their dynamics. Taking this view, we derive a decomposition-based solution to the minimal source-target control problem which can be significantly faster than the existing approaches on large networks. We then show that the solution can be further optimised if we take into account appropriate information about the source state. We apply our solutions to both real-life biological networks and randomly generated networks, demonstrating the efficiency and efficacy of our approach. [less ▲]

Detailed reference viewed: 35 (0 UL)
Full Text
Peer Reviewed
See detailCase Study: Analysis and Mitigation of a Novel Sandbox-Evasion Technique
Genç, Ziya Alper UL; Lenzini, Gabriele UL; Sgandurra, Daniele

in 3rd Central European Cybersecurity Conference (in press)

Malware is one of the most popular cyber-attack methods in the digital world. According to the independent test company AV-TEST, 350,000 new malware samples are created every day. To analyze all samples ... [more ▼]

Malware is one of the most popular cyber-attack methods in the digital world. According to the independent test company AV-TEST, 350,000 new malware samples are created every day. To analyze all samples by hand to discover whether they are malware does not scale, so antivirus companies automate the process e.g., using sand- boxes where samples can be run, observed, and classified. Malware authors are aware of this fact, and try to evade detection. In this paper we describe one of such evasion technique: unprecedented, we discovered it while analyzing a ransomware sample. Analyzed in a Cuckoo Sandbox, the sample was able to avoid triggering malware indicators, thus scoring significantly below the minimum severity level. Here, we discuss what strategy the sample follows to evade the analysis, proposing practical defense methods to nullify, in our turn, the sample’s furtive strategy. [less ▲]

Detailed reference viewed: 40 (2 UL)
Full Text
Peer Reviewed
See detailOvercome of bed-joint imperfections and improvement of actual contact in dry-stacked masonry
Chewe Ngapeya, Gelen Gael UL; Waldmann, Danièle UL

in Construction and Building Materials (in press)

Several researchers studied dry-stacked masonry walls (DSM) and inferred that the actual contact surface between the different block rows and the compressive strength in such walls are reduced by bed ... [more ▼]

Several researchers studied dry-stacked masonry walls (DSM) and inferred that the actual contact surface between the different block rows and the compressive strength in such walls are reduced by bed-joint imperfections as well as by height differences between different masonry blocks leading both to high stress concentration. This paper concentrates on the first type on imperfections. Through experimental tests, it analyses the influence of bed-joint roughness on the load bearing capacity and investigates a strategy to improve the load-bearing capacity of DSM by placing an additional horizontal layer on the top face of raw masonry blocks. First, different contact layers using conventional and auxetic materials were applied. Then 20 dry-stacked masonry prisms built with raw and improved masonry blocks were tested under axial compressive load until failure. Prescale Fujifilm strips were used to measure the actual contact in the bed-joints. Experimental tests show that the use of a contact layer with well-defined material properties enables firstly to increase the actual contact area in the bed-joints from 23% to 98% of the nominal contact area and secondly to increase the load-bearing capacity by 14 to 97%. In addition, the contact layer with an auxetic material shows a significant capacity in altering the lateral expansion in the block units. The outcomes show that although the bed joint roughness influences the stress distribution in a dry-stacked masonry block, a contact layer with well-defined material properties enables to overcome the roughness induced by the bed-joint imperfections. [less ▲]

Detailed reference viewed: 58 (2 UL)
Full Text
Peer Reviewed
See detailInternationale Disability Studies
Biermann, Julia; Powell, Justin J W UL

in Waldschmidt, Anne (Ed.) Handbuch Disability Studies (in press)

Der Beitrag zeichnet internationale Entwicklungen in den Disability Studies nach. Aufgrund der Bedeutung für die Entstehung und weltweite Verbreitung des multidisziplinären Forschungsfelds liegt der Fokus ... [more ▼]

Der Beitrag zeichnet internationale Entwicklungen in den Disability Studies nach. Aufgrund der Bedeutung für die Entstehung und weltweite Verbreitung des multidisziplinären Forschungsfelds liegt der Fokus auf den englischsprachigen Diskursen. Skizziert werden drei historische Phasen: die Etablierung der Disability Studies in den 1970er und 1980er Jahren, die Ausdifferenzierung in den 1990er und 2000er Jahren sowie die Pluralisierung seit den 2010er Jahren. [less ▲]

Detailed reference viewed: 34 (3 UL)