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See detailAre octroyed constitutions of the 19th century to be considered as 'imposed constitutions'?
Gerkrath, Jörg UL

in Contiades, Xenophon (Ed.) ‘Imposed Constitutions: Aspects of Imposed Constitutionalism’ (in press)

The paper considers ‘octroyed’, ‘conceded’ or ‘granted’ constitutions of 19th century Europe whose common roots are to be found in the French ‘Charte constitutionnelle’ of 1814. These Charters stem from a ... [more ▼]

The paper considers ‘octroyed’, ‘conceded’ or ‘granted’ constitutions of 19th century Europe whose common roots are to be found in the French ‘Charte constitutionnelle’ of 1814. These Charters stem from a paternalistic process of domestic constitution-making engaged unilaterally by a monarch possessing the de facto constituent power and exercising it without the direct involvement of a body representing the people. Such octroyed constitutions, which are of course to be opposed to democratically established ones, show nevertheless a number of specific characteristics which distinguish them also from ‘imposed constitutions’ in the usual sense. The expression ‘constitutional octroy’ should not be used as a synonym for any process leading to an ‘imposed Constitution’. The contribution aims to develop and to validate or invalidate the value of a series of distinctive criteria and possible elements of a definition of ‘octroyed’ or ‘granted’ constitutions in order to underline their specificity. [less ▲]

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See detailAttention bias modification training for adolescents with chronic pain: A randomized placebo-controlled trial
Heathcote, Lauren C; Jacobs, Conrad; van Ryckeghem, Dimitri UL et al

in Pain (in press)

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See detailExploring gambling craving through the elaborated intrusion theory of desire: a mixed methods approach
Cornil, Aurélien; Lopez-Fernandez, Olatz; Devos, Gaëtan et al

in International Gambling Studies (in press)

Gambling disorder is a well-established behavioural addiction, which was classified with substance-related disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders ... [more ▼]

Gambling disorder is a well-established behavioural addiction, which was classified with substance-related disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders. Although craving was introduced as a new diagnostic criterion for substance-related disorders, it was not included for gambling disorder. This study aimed to explore the experience of gambling craving and to evaluate whether the elaborated intrusion theory of desire (EIT), a cognitive model of craving, fits gambling craving. A mixed methods study was conducted among 31 non-clinical gamblers. The qualitative part consisted of open-ended questions targeting the components of the EIT. The quantitative part consisted of a questionnaire designed to assess triggers and descriptions of gambling craving. Qualitative analysis revealed six distinct conceptual categories related to gambling craving: positive and negative affect, external cues, mental imageries, thoughts and physiological sensations. The quantitative analysis highlighted the most relevant triggers (e.g. spontaneous thoughts) and experiential characteristics (e.g. visual imagery) of gambling craving. The present study allowed the authors to support the relevance of the EIT as it applies to gambling craving by disentangling its core features. Findings from this study suggest that the use of interventions derived from the EIT may be relevant for problem gambling treatment. [less ▲]

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See detailJoint Precoding and On-Board Beamforming for Multiple gateway Multibeam Satellite Systems
Joroughi, Vahid UL

in Submitted to IEEE Journal on Selected topic in Communication (JSAC) (in press)

This paper aims to design joint precoding and onboard beamforming of a multiple gateway multibeam satellite system, either in a hybrid space-ground mode, or in a totally on-board one. In such an ... [more ▼]

This paper aims to design joint precoding and onboard beamforming of a multiple gateway multibeam satellite system, either in a hybrid space-ground mode, or in a totally on-board one. In such an architecture, with employing high throughput full frequency reuse pattern over both user and feeder links, each gateway serves a cluster of adjacent beams such that the adjacent clusters are served through a set of gateways that are located at different geographical areas. However, such a system brings in two challenges to overcome. First, the interference in both user and feeder links is the bottleneck of the whole system and applying interference mitigation techniques becomes necessary. Second, as the data demand increases, the ground and space segments should employ extensive bandwidth resources in the feeder link accordingly. This entails embedding an extra number of gateways aiming to support a fair balance between the increasing demand and the corresponding required feeder link resources. To solve these problems, this study investigates the impact of employing a joint multiple gateway architecture and on-board beamforming scheme. It is shown that by properly designing the on-board beamforming scheme, the number of gateways can be kept affordable even if the data demand increases. Moreover, Zero Forcing (ZF) precoding techniques are considered to cope with the interference in both user and feeder links which embed in the following premises: (i) each gateway constructs a part of block ZF precoding matrix, (ii) the satellite and gateways perform the precoding scheme, and (iii) a joint design of ZF precoding and on-board beamforming at the payload of the satellite so that no signal processing scheme is conceived at the gateways. The provided simulation results depict the performance gain obtained by our proposed schemes. [less ▲]

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See detailPain and Attention: Towards a Motivational Account
van Ryckeghem, Dimitri UL; Crombez, Geert

Book published by Oxford University Press (in press)

Attention plays a pivotal role in the experience of pain and its impact upon daily activities. Accordingly, research on the interplay between attention and pain has a long scientific history. Within this ... [more ▼]

Attention plays a pivotal role in the experience of pain and its impact upon daily activities. Accordingly, research on the interplay between attention and pain has a long scientific history. Within this chapter, we discuss the theoretical frameworks that aim to explain the relationship between attention and pain. We argue for a motivational perspective on pain that highlights the critical role of cognitive, affective and contextual factors in explaining the interplay between attention and pain. To substantiate this argument, we provide an overview of available research addressing the bottom-up capture of attention by pain and the top-down modulation (both inhibition and facilitation) of attention for pain. We conclude this chapter with guidelines and suggestions for future research and discuss clinical implications of adopting a motivational perspective on pain. [less ▲]

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See detailVisuo-spatial abilities are key for young children’s verbal number skills
Cornu, Véronique UL; Schiltz, Christine UL; Martin, Romain UL et al

in Journal of Experimental Child Psychology (in press)

Children’s development of verbal number skills (i.e, counting abilities and knowledge of the number names) presents a milestone in mathematical development. Different factors such as visuo-spatial and ... [more ▼]

Children’s development of verbal number skills (i.e, counting abilities and knowledge of the number names) presents a milestone in mathematical development. Different factors such as visuo-spatial and verbal abilities have been discussed to contribute to the development of these foundational skills. To understand the cognitive nature of verbal number skills in young children, the present study assessed the relation of preschoolers’ verbal and visuo-spatial abilities to their verbal number skills. In total, 141 children aged between five and six years participated in the present study. Verbal number skills were regressed on vocabulary, phonological awareness and visuo-spatial abilities, as well as verbal and visuo-spatial working memory in a structural equation model. Only visuo-spatial abilities emerged as a significant predictor of verbal number skills in the estimated model. Our results suggest that visuo-spatial abilities contribute to a larger extent to children’s verbal number skills than verbal abilities. From a theoretical point of view, these results suggest a visuo-spatial, rather than a verbal, grounding of verbal number skills. These results are potentially informative for the conception of early mathematics assessments and interventions. [less ▲]

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See detailToward a Qualitative Understanding of Binge-Watching Behaviors: A Focus Group Approach
Flayelle, Maèva UL; Maurage, Pierre; Billieux, Joël UL

in Journal of Behavioral Addictions (in press)

Background and aims: Binge-watching (i.e., seeing multiple episodes of the same TV series in a row) now constitutes a widespread phenomenon. However, little is known about the psychological factors ... [more ▼]

Background and aims: Binge-watching (i.e., seeing multiple episodes of the same TV series in a row) now constitutes a widespread phenomenon. However, little is known about the psychological factors underlying this behavior, as reflected by the paucity of available studies, most merely focusing on its potential harmfulness by applying the classic criteria used for other addictive disorders without exploring the uniqueness of binge-watching. The present study thus aimed to take the opposite approach as a first step toward a genuine understanding of binge-watching behaviors through a qualitative analysis of the phenomenological characteristics of TV series watching. Methods: A focus group of regular TV series viewers (N=7) was established to explore a wide range of aspects related to TV series watching (e.g., motives, viewing practices, related behaviors). Results: A content analysis identified bingewatching features across three dimensions: TV series watching motivations, TV series watching engagement, and structural characteristics of TV shows. Most participants acknowledged that TV series watching can become addictive, but they all agreed having trouble recognizing themselves as truly being an “addict.” Although obvious connections could be established with substance addiction criteria and symptoms, such parallelism appeared to be insufficient, as several distinctive facets emerged (e.g., positive view, transient overinvolvement, context dependency, low everyday life impact). Discussion and conclusions: Research should go beyond the classic biomedical and psychological models of addictive behaviors to account for binge-watching in order to explore its specificities and generate first steps toward an adequate theoretical rationale for these emerging problematic behaviors. [less ▲]

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See detailA Head-count Measure of Rank Mobility and Its Directional Decomposition
D'Ambrosio, Conchita UL; Bossert, Walter; Can, Burak

in Economica (in press)

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See detailGrenze als überwindbares Phänomen in der Raumplanung?
Nienaber, Birte UL

in Heintel, Martin; Musil, Robert; Weixlbaumer, Norbert (Eds.) Grenzen (in press)

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See detailLettere alla redazione : il caso della “Buona Domenica” lussemburghese Un fenomeno mediatico italo-lussemburghese
Cicotti, Claudio UL

in El Ghibli - Rivista di Letteratura della Migrazione (in press)

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See detailEnlarging the frame: Issues of inclusion and mental health in an ageing society
Ferring, Dieter UL; Murdock, Elke UL

in Journal of Mental Health Research in Intellectual Disabilities (in press)

This contribution frames the notions of inclusion and mental health by describing trends in European societies at the social and economic level that will have direct consequences for a participative civil ... [more ▼]

This contribution frames the notions of inclusion and mental health by describing trends in European societies at the social and economic level that will have direct consequences for a participative civil society and social cohesion. Starting point is the observation that the world faces challenges at the start of the 21st century that are new and unprecedented in its history. The four global forces that break all the trends known so far in human history include urbanization, accelerating technological development, greater global connections, and population ageing. The authors first describe the scale of population ageing, as ageing populations characterize several developed economies. In a second step, they highlight some consequences of population ageing for social welfare and in a third part they elaborate on the notion of justice and inclusion in rapidly changing societies. [less ▲]

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See detailLa force intégrative du statut de l'Etat membre sur la fonction juridictionnelle
Neframi, Eleftheria UL

in Potvin Solis, Laurence (Ed.) Le statut d'Etat membre de l'Union européenne (in press)

The integrative force of the Member States’ status on the judicial function is expressed through the loyalty obligation to provide remedies sufficient to ensure effective legal protection in the fields ... [more ▼]

The integrative force of the Member States’ status on the judicial function is expressed through the loyalty obligation to provide remedies sufficient to ensure effective legal protection in the fields covered by Union law (Art 19, par 1, subpar 2, TEU). Member States have to ensure access to the national judge, who has been entrusted with a European mandate, and who is in measure to cooperate with the Court of Justice through the preliminary reference procedure. The Member States establish in this way an integrated judicial function. The exercise of such a function by the national judge, in cooperation with the Court of Justice and under the control of the Member State, implies integrative dynamic, which however depends on the balancing exercise with national procedural autonomy and the margin of appreciation of the national judge. [less ▲]

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See detailModelling Metrics for Transparency in Medical Systems
Pierina Brustolin Spagnuelo, Dayana UL; Bartolini, Cesare UL; Lenzini, Gabriele UL

in Proceedings of TrustBus 2017 (in press)

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See detailEvaluation of school tasks in the light of sustainability education: Textbook research in science education in Luxembourgish primary schools
Andersen, Katja Natalie UL

in Environmental Education Research (in press)

This article describes a research project that aimed to classify different types of sustainability-related school tasks in terms of two central approaches in primary school education: action-based and ... [more ▼]

This article describes a research project that aimed to classify different types of sustainability-related school tasks in terms of two central approaches in primary school education: action-based and task-based learning. Using a textbook analysis approach, the article clarifies implicit and explicit forms of sustainability education in school tasks in Luxembourgish science textbooks for Grades 1 to 6. The study uses a two-step analysis: first, scanning textbooks on content relating to sustainability; and, second, evaluating the teaching practices associated with this content apparent in the textbooks. Step one identifies the school tasks in which sustainability content is implicitly or explicitly addressed while step two analyzes which forms of action-based and task-based learning occur in these sustainability-related school tasks. Based on the results two claims can be made: first, that there is very little sustainability-related content in Luxembourgish primary science textbooks, and those topics raised mostly relate to sustainability only indirectly; secondly, action-based and task-based learning are undervalued in the context of sustainability-related school tasks; neither of the two was commonly found in school tasks in sustainability education. [less ▲]

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See detailMulti-objective regression test selection in practice: an empirical study in the defense software industry
Özkan, Ramazan; Garousi, Vahid UL; Betin-Can, Aysu

in Proceedings of ACM/IEEE International Symposium on Empirical Software Engineering and Measurement (ESEM) (in press)

Executing an entire regression test suite after every code change is often costly in large software projects. To address this challenge, various regression test selection techniques have been proposed in ... [more ▼]

Executing an entire regression test suite after every code change is often costly in large software projects. To address this challenge, various regression test selection techniques have been proposed in the literature. One of those approaches is the Multi-Objective Regression Test Optimization (MORTO) approach, which is applied when there are multiple objectives during regression testing (e.g., minimizing the number of test cases and maximizing test coverage). This paper reports an action research type of study which was conducted to improve regression test-selection practices of a safety-critical industrial software in the defence domain based on the MORTO approach. The problem is formulated and solved by converting the multi-objective genetic-algorithm (GA) problem into a custom-built scalarized single-objective GA. The empirical results demonstrate that this approach yields a more efficient test suite (in terms of testing cost and benefits) compared to the old (manual) test-selection approach and another approach from the literature, i.e., the selective requirement coverage-based approach. Based on the context and need of the company, we developed the GA-based solution on a set of five cost objectives and four benefit objectives for regression testing while providing full coverage of the affected (changed) requirements. Since our proposed approach has been beneficial in the industrial context, it is currently in active use in the company. [less ▲]

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See detailHow does research evaluation impact educational research? Exploring intended and unintended consequences of research assessment in the United Kingdom, 1986–2014
Marques, Marcelo UL; Powell, Justin J W UL; Zapp, Mike UL et al

in European Educational Research Journal (in press)

Research evaluation systems in many countries aim to improve the quality of higher education. Among the first such systems, the UK's Research Assessment Exercise (RAE) from 1986 is now the Research ... [more ▼]

Research evaluation systems in many countries aim to improve the quality of higher education. Among the first such systems, the UK's Research Assessment Exercise (RAE) from 1986 is now the Research Excellence Framework (REF). Highly-institutionalized, it holds research(ers) accountable. While studies describe the effects at different levels, this longitudinal analysis examines the gradual institutionalization and (un)intended consequences from 1986 to 2014. First, we analyze historically RAE/REF's rational, formalization, standardization, and transparency, framing it as a strong research evaluation system. Second, we locate the multidisciplinary field of education, analyzing submission behavior (staff, outputs, funding) of Departments of Education over time. We find: decreases in submitted staff; the research article as preferred publication format; the rise of quantitative analysis; and high and stable concentration of funding among few Departments. Policy instruments invoke varied responses, wit such reactivity shown by the increasing selectivity of submitted staff as a form of reverse engineering and the research article as the preferred output as a self-fulfilling prophecy. The funding concentration manifests an intended consequence, facilitating greater disparities between Departments of Education. These findings emphasize how research assessment impacts the structural organization and cognitive development of educational research in the UK. [less ▲]

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See detailWhat we know about testing embedded software
Garousi, Vahid UL; Felderer, Michael; Karapıçak, Çağrı Murat et al

in IEEE Software (in press)

To cost-effectively test embedded software, practitioners and researchers have proposed many test techniques, approaches, tools, and frameworks. However, obtaining an overview of the state of the art and ... [more ▼]

To cost-effectively test embedded software, practitioners and researchers have proposed many test techniques, approaches, tools, and frameworks. However, obtaining an overview of the state of the art and state of the practice in this area is challenging for practitioners or new researchers. In addition, owing to an inadequate overview of what already exists in this area, some companies often reinvent the wheel by designing a test approach that’s new to them but already exists. To address these problems, the authors conducted a systematic literature review of this area that covered the testing topics, testing activities, test artifacts, and industries on which the studies focused. The results can benefit both practitioners and researchers by serving as an index to the vast body of knowledge in this important, fast-growing area. [less ▲]

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See detailComparing automated visual GUI testing tools: an industrial case study
Garousi, Vahid UL; Afzal, Wasif; Çağlar, Adem et al

in Proceedings of International Workshop on Automated Software Testing (A-TEST) (in press)

Visual GUI testing (VGT) is a tool-driven technique, which uses image recognition for interaction and assertion of the behaviour of system under test. Motivated by a real industrial need, in the context ... [more ▼]

Visual GUI testing (VGT) is a tool-driven technique, which uses image recognition for interaction and assertion of the behaviour of system under test. Motivated by a real industrial need, in the context of a large Turkish software and systems company providing solutions in the areas of defense and IT sector, we systematically planned and applied a VGT project in this industrial context. The goal of the initial phase of the project was to empirically evaluate two well-known VGT tools (Sikuli and JAutomate) to help the company select the best tool for a given testing project. Our results show that both two tools suffer from similar test ‘Replay’ problems such as the inability to find smaller-sized images. The repeatability of test executions was better for JAutomate in case of one of the two software under test (SUT) while it was comparable for the other. In terms of test development effort, for both tools, there were high correlations with number of steps in test suites, however the effort is reduced if test code is reused. The study has already provided benefits to the test engineers and managers in the company by increasing the know-how in the company w.r.t. VGT, and by identifying the challenges and their workarounds in using the tools. The industrial case study in this paper intends to add to the body of evidence in VGT and help other researchers and practitioners. [less ▲]

Detailed reference viewed: 47 (3 UL)