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See detailLes modes de circulation et de légitimation des discours d’exclusion : espace, temps et mémoire
Freyermuth, Sylvie UL

in Barthelmebs-Raguin, Hélène; Komur-Thilloy, Greta; Marnette, Sophie (Eds.) et al Le discours rapporté… une question de temps (in press)

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See detailStadt‐ und Raumentwicklung Luxemburg
Chilla, Tobias; Schulz, Christian UL

in Akademie für Raumforschung und Landesplanung (Ed.) Handwörterbuch der Stadt‐ und Raumentwicklung (in press)

Die räumliche Entwicklung Luxemburgs ist geprägt von einer hohen sozio-ökonomischen Dynamik mit starken grenzüberschreitenden Verflechtungen. Erst in den vergangenen 15 Jahren etwa ist ein modernes ... [more ▼]

Die räumliche Entwicklung Luxemburgs ist geprägt von einer hohen sozio-ökonomischen Dynamik mit starken grenzüberschreitenden Verflechtungen. Erst in den vergangenen 15 Jahren etwa ist ein modernes Planungssystem etabliert worden, das auf kommunaler wie nationaler Ebene verankert ist. [less ▲]

Detailed reference viewed: 34 (4 UL)
See detailMéthodes de design UX : 30 méthodes fondamentales pour concevoir des expériences optimales
Lallemand, Carine UL; Gronier, Guillaume

Book published by Eyrolles - 2nd ed. (in press)

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See detailSchulbuchentwicklung in Luxemburg: Forschungsergebnisse der TAPSE-Studie
Andersen, Katja Natalie UL

in MENJE (Ministère de l’Éducation nationale, de l’Enfance et de la Jeunesse); Université du Luxembourg (Eds.) Bildungsbericht Luxemburg 2018 (in press)

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See detailEntwicklungen der Trans*-Bewegung in der Bundesrepublik Deutschland
De Silva, Adrian UL

E-print/Working paper (in press)

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See detailOf princesses, paladins, and player motivations: Gender stereotypes and gendered perceptions in video games
Melzer, André UL

in Pietschmann, Daniel; Liebold, Benny; Lange, Benjamin (Eds.) et al Digital hunter-gatherers: An evolutionary psychology approach to digital games (in press)

Video games have been labeled a male space, and playing video games an activity created by men and for men (Fox & Tang, 2014; see also Lange & Schwab, this volume). The present chapter analyses the ... [more ▼]

Video games have been labeled a male space, and playing video games an activity created by men and for men (Fox & Tang, 2014; see also Lange & Schwab, this volume). The present chapter analyses the typical roles of male and female video game characters, their presentation in games, their effects, and how players perceive these characters. To this end, gender in video games will be analyzed on different levels. Although women and men share the same overall interest in playing video games as a medium for entertainment, they differ substantially with regard to genres and game titles they prefer. These gender differences have been attributed to the overrepresentation of male characters in video games, uninviting game contents that strongly rely on competition and physical aggression, and the stereotypical portrayal and scripted behavioral patterns of hyper-masculine or “macho” male and sexualized female game characters. The issue of gender portrayals in video games will be discussed in the light of theoretical considerations on evolved dispositions that differ by sex versus the social structural account that attributes sex differences to the differing placement of women and men in the social structure. It will be argued that both theoretical approaches make similar predictions regarding gender-specific video game preferences. [less ▲]

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See detailCultures of care in aging
Boll, Thomas UL; Ferring, Dieter UL; Valsiner, Jaan

Book published by Information Age Publishing (in press)

Care for elderly persons has many facets and is influenced by many factors of the care-dependent person, the care giver(s) and the micro-, and macro-social context. A co-operation of multiple disciplines ... [more ▼]

Care for elderly persons has many facets and is influenced by many factors of the care-dependent person, the care giver(s) and the micro-, and macro-social context. A co-operation of multiple disciplines is required to better understand phenomena of elder care and to act adequately in this field. This is even more urgent given the increasing population aging and the impending gaps between demand and supply of care. The present book provides a first substantive integration of knowledge from geropsychology, other gerosciences, and cultural psychologies to reach these goals —through a multi-disciplinary and international cast of authors. Macro-social context—including demographic, historical, political, normative, and other cultural factors—turned out to open and limit the available options for individual care giving and receipt and shapes how these issues are experienced by the participants in elder care. Elder care is shown to be far more complex than previously thought, because its consequences extend beyond single care givers to multigenerational caring families. Thinking, feeling and acting in relation to care dependency, caregiving and care receipt emerged as being influenced by multiple individual and social level factors. Future issues of elder care are seen as being shaped to a large extent by macro level factors such as population aging, social trends in job and family life, and development of assistive technologies. All this has far reaching implications for ensuring quality of care and the life quality on part of care recipients and care providers and for the coherence of social communities. [less ▲]

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See detailMachine learning and natural language processing on the patent corpus: data, tools, and new measures
Balsmeier, Benjamin UL; Li, Guan-Cheng; Assaf, Mohamad et al

in Journal of Economics & Management Strategy (in press)

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See detailAn Experience Report On Applying Software Testing Academic Results In Industry: We Need Usable Automated Test Generation
Arcuri, Andrea UL

in Empirical Software Engineering (in press)

What is the impact of software engineering research on current practices in industry? In this paper, I report on my direct experience as a PhD/post-doc working in software engineering research projects ... [more ▼]

What is the impact of software engineering research on current practices in industry? In this paper, I report on my direct experience as a PhD/post-doc working in software engineering research projects, and then spending the following five years as an engineer in two different companies (the first one being the same I worked in collaboration with during my post-doc). Given a background in software engineering research, what cutting-edge techniques and tools from academia did I use in my daily work when developing and testing the systems of these companies? Regarding validation and verification (my main area of research), the answer is rather short: as far as I can tell, only FindBugs. In this paper, I report on why this was the case, and discuss all the challenging, complex open problems we face in industry and which somehow are ``neglected'' in the academic circles. In particular, I will first discuss what actual tools I could use in my daily work, such as JaCoCo and Selenium. Then, I will discuss the main open problems I faced, particularly related to environment simulators, unit and web testing. After that, popular topics in academia are presented, such as UML, regression and mutation testing. Their lack of impact on the type of projects I worked on in industry is then discussed. Finally, from this industrial experience, I provide my opinions about how this situation can be improved, in particular related to how academics are evaluated, and advocate for a greater involvement into open-source projects. [less ▲]

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See detailTest Suite Generation with the Many Independent Objective (MIO) Algorithm
Arcuri, Andrea UL

in Information and Software Technology (in press)

Context: Automatically generating test suites is intrinsically a multi-objective problem, as any of the testing targets (e.g, statements to execute or mutants to kill) is an objective on its own. Test ... [more ▼]

Context: Automatically generating test suites is intrinsically a multi-objective problem, as any of the testing targets (e.g, statements to execute or mutants to kill) is an objective on its own. Test suite generation has peculiarities that are quite different from other more regular optimisation problems. For example, given an existing test suite, one can add more tests to cover the remaining objectives. One would like the smallest number of small tests to cover as many objectives as possible, but that is a secondary goal compared to covering those targets in the first place. Furthermore, the amount of objectives in software testing can quickly become unmanageable, in the order of (tens/hundreds of) thousands, especially for system testing of industrial size systems. Objective: To overcome these issues, different techniques have been proposed, like for example the Whole Test Suite (WTS) approach and the Many-Objective Sorting Algorithm (MOSA). However, those techniques might not scale well to very large numbers of objectives and limited search budgets (a typical case in system testing). In this paper, we propose a novel algorithm, called Many Independent Objective (MIO) algorithm. This algorithm is designed and tailored based on the specific properties of test suite generation. Method: An empirical study was carried out for test suite generation on a series of artificial examples and seven RESTful API web services. The \evo system test generation tool was used, where MIO, MOSA, WTS and random search were compared. Results: The presented MIO algorithm resulted having the best overall performance, but was not the best on all problems. Conclusion: The novel presented MIO algorithm is a step forward in the automation of test suite generation for system testing. However, there are still properties of system testing that can be exploited to achieve even better results. [less ▲]

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See detailRandom or Evolutionary Search for Object-Oriented Test Suite Generation?
Shamshiri; Rojas; Gazzola et al

in Software Testing, Verification & Reliability (in press)

An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases ... [more ▼]

An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases comprising the test suite. Several search-based techniques have proved successful at automatically generating tests that achieve high coverage. However, despite the well-established arguments behind using evolutionary search algorithms (e.g., genetic algorithms) in preference to random search, it remains an open question whether the benefits can actually be observed in practice when generating unit test suites for object-oriented classes. In this paper, we report an empirical study on the effects of using evolutionary algorithms (including a genetic algorithm and chemical reaction optimization) to generate test suites, compared with generating test suites incrementally with random search. We apply the EVOSUITE unit test suite generator to 1,000 classes randomly selected from the SF110 corpus of open source projects. Surprisingly, the results show that the difference is much smaller than one might expect: While evolutionary search covers more branches of the type where standard fitness functions provide guidance, we observed that, in practice, the vast majority of branches do not provide any guidance to the search. These results suggest that, although evolutionary algorithms are more effective at covering complex branches, a random search may suffice to achieve high coverage of most object-oriented classes. [less ▲]

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See detailInventory Decisions in the Presence of Strategic Customers: Theory and Behavioral Evidence
Zhang, Yang; Mantin, Benny UL; Wu, Yaozhong

in Production and Operations Management (in press)

We consider the inventory decision of a retailer facing strategic customers. We develop a behavioral theory that accounts for reference dependence, which makes predictions on how the presence of strategic ... [more ▼]

We consider the inventory decision of a retailer facing strategic customers. We develop a behavioral theory that accounts for reference dependence, which makes predictions on how the presence of strategic customers leverages retailer behavior. Specifically, the reference-dependent retailer shall decrease her order quantity when there are more strategic customers in the population. As such, the conventional pull-to-center bias for newsvendor is generalized, since the presence of strategic consumers may induce the retailer to pull her order further below the center even when the production cost is low. Furthermore, increasing proportion of strategic customers reduces the retailer's ordering bias under low cost, yet amplifies it when the cost is high. Our subsequent experiments find pull-below-center effect, validate the theoretical predictions, and establish the asymmetry of reference dependence with the estimated behavioral parameters. We also study extensions to our model and carry out robustness checks of our experimental results. [less ▲]

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See detailDesires and intentions for fatherhood: A comparison of childless gay and heterosexual men in Germany
Kranz, Dirk; Busch, Holger; Niepel, Christoph UL

in Journal of Family Psychology (in press)

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See detailChallenges in completing EMU: asymmetric competition vs fiscal harmonisation. A case study of the Benelux countries
Danescu, Elena UL

in Journal of Contemporary European Research [=JCER] (2019)

This paper aims to investigate the concept, context and socio-economic consequences of fiscal competition in the integrated economic space of EMU in completion, to pinpoint the positive and negative ... [more ▼]

This paper aims to investigate the concept, context and socio-economic consequences of fiscal competition in the integrated economic space of EMU in completion, to pinpoint the positive and negative factors at work via a case study of the Benelux countries – both founder members of the EU and pioneers of EMU – and to examine the impact on European and international regulations in the field. In particular, it will endeavour to provide a comprehensive interpretation of fiscal policy in the Benelux countries via a comparative approach and from a historical perspective. It will look at the development of respective domestic fiscal policies, driven by national interests and by membership of a Community that is subject to requirements in terms of harmonisation and taxation, but also by constant contact (and frequent clashes) with the multilateral international environment. [less ▲]

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See detailTheir ‘Apple of Discord’ or the Apple of Their Eye: How the British Secured Eastern Mediterranean and Western European Security, 1947-1948
Paravantis, Spero UL

in Kamouzis, Dimitris; Nafpliotis, Alexandros (Eds.) Αnglo-Hellenic relations in the 20th Century (2019)

This chapter examines the role the British policy in Greece played in the shift in American foreign policy that was manifested in 1947-48, that led directly to these alliances, namely the Western European ... [more ▼]

This chapter examines the role the British policy in Greece played in the shift in American foreign policy that was manifested in 1947-48, that led directly to these alliances, namely the Western European Union and NATO. To achieve this shift (which also included support of British strategic interests in the Eastern Mediterranean) this chapter argues that the British used Greece, first as a way to draw the United States further into European affairs, and then as a way to anchor the United States in Europe, achieving a guarantee of security for the Eastern Mediterranean and for Western Europe. Drawing on both published and unpublished British and American sources, this chapter will also examine perceptions of the conflicts in and about Greece, and what it represented for Western European and Eastern Mediterranean security, and Western ideas of democracy when confronted with supporting a right-wing Greek government. In so doing, it clarifies how American foreign policy changed from its pre-war focus on non-intervention, to the cold-war politics of containment and intervention. [less ▲]

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See detailSimultaneous finite element analysis of circuit-integrated piezoelectric energy harvesting from fluid-structure interaction
Ravi, Srivathsan; Zilian, Andreas UL

in Mechanical Systems & Signal Processing (2019), 114

Flow-driven piezoelectric energy harvesting is a strongly coupled multiphysics phenomenon that involves complex three-way interaction between the fluid flow, the electromechanical effect of the ... [more ▼]

Flow-driven piezoelectric energy harvesting is a strongly coupled multiphysics phenomenon that involves complex three-way interaction between the fluid flow, the electromechanical effect of the piezoelectric material mounted on a deformable substrate structure and the controlling electrical circuit. High fidelity computational solution approaches are essential for the analysis of flow-driven energy harvesters in order to capture the main physical aspects of the coupled problem and to accurately predict the power output of a harvester. While there are some phenomenological and numerical models for flow-driven harvesters reported in the literature, a fully three-dimensional strongly coupled model has not yet been developed, especially in the context of flow-driven energy harvesting. The weighted residuals method is applied to establish a mixed integral equation describing the incompressible Newtonian flow, elastic substrate structure, piezoelectric patch, equipotential electrode and attached electric circuit that form the multiphysics fluid-structure interaction problem. A monolithic numerical solution method is derived that provides consistent and simultaneous solution to all physical fields as well as to fluid mesh deformation. The approximate solution is based on a mixed space-time finite element discretization with static condensation of the auxiliary fields. The discontinuous Galerkin method is utilized for integrating the monolithic model in time. The proposed solution scheme is illustrated in the example of a lid driven cavity with a flexible piezoelectric bottom wall, demonstrating quantification of the amount of electrical energy extractable from fluid flow by means of a piezoelectric harvester device. The results indicate that in order to make reliable predictions on the power output under varying operational states, the realization of strong multiphysics coupling is required for the mathematical model as well as the numerical solution scheme to capture the characteristics of flow-driven energy harvesters. [less ▲]

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See detailReductions of elliptic curves
Perucca, Antonella UL

in Proceedings of the Roman Number Theory Association (2019), 4

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See detailSprachliche Voraussetzungen
Kirsch, Claudine UL

in Kiel, Ewald; Herzig, Bardo; Maier, Uwe (Eds.) et al Handbuch Unterrichten in allgemeinbildenden Schulen (2019)

Detailed reference viewed: 33 (3 UL)
See detailNew Migration of Families from Greece to Europe and Canada – Experiences and Interpretations of Family Members within the Context of Different Migration Societies and Educational Systems
Chatzidaki; Kirsch, Claudine UL; Panagiotopoulou, Argyro et al

Book published by Barbara Budrich - Reihe Inklusion Bildung Migration (2019)

Detailed reference viewed: 29 (0 UL)