Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailExpectations of mutual support and care in the light of migration
Albert, Isabelle UL; Ferring, Dieter UL; Barros Coimbra, Stephanie UL et al

Scientific Conference (2015, September 08)

As first generation immigrants are currently approaching retirement age in many European countries, intergenerational solidarity within the context of acculturation gains high importance. However, most ... [more ▼]

As first generation immigrants are currently approaching retirement age in many European countries, intergenerational solidarity within the context of acculturation gains high importance. However, most research on intergenerational relations in ageing families so far has not drawn special attention to migrant families. The aim of the present study was to investigate similarities and differences in the expectations about intergenerational support in a sample of n = 48 Luxembourgish (68.8% female) and n = 36 Portuguese (60.5% female) adult children and at least one of their parents. Luxembourgish adult children were on average M = 25.90 (SD = 5.74) years old, Portuguese M = 27.28 (SD = 6.49). A total of 58.3% of Portuguese adult children were born in Luxembourg; the remainder was born in Portugal but had grown up in Luxembourg. For all participants, both parents were still alive and were living in the Grand-Duchy. Whereas Luxembourgish and Portuguese adult children did not differ regarding family cohesion and expected support from parents toward children, Portuguese participants reported higher expectations of support from adult children toward their ageing parents. More Portuguese than Luxembourgish parents indicated they would like to live with their children in case of need, whereas more Luxembourgish parents preferred to live in a residential home. Nonetheless, no differences between adult children of both national groups were found regarding filial anxiety about future care of parents. Results are discussed in the framework of an integrative model on intergenerational family relations in the light of migration and ageing. This model takes several aspects into account that might have an impact on different needs, tasks and resources of the individual and the family depending on different family cultures, the larger cultural context in which family relations are embedded as well as significant events over the life-span (such as migration history). [less ▲]

Detailed reference viewed: 241 (11 UL)
See detailExpected and Unexpected Consequences of the Educational Expansion in Europe and the US Theoretical approaches and empirical findings in comparative perspective
Hadjar, Andreas UL; Becker, Rolf

Book published by Haupt Verlag (2009)

A main mechanism behind the change in European and North American societies in the second half of the 20th century is the educational expansion, i.e. the increase in educational opportunities and the ... [more ▼]

A main mechanism behind the change in European and North American societies in the second half of the 20th century is the educational expansion, i.e. the increase in educational opportunities and the higher demand for education. Whereas other abstract social processes like modernization have been widely theorized in social science literature, the educational expansion and its consequences in particular have not been well studied. Therefore the main aim of this compilation is to deal with the question of whether the demands of the educational reforms have been fulfilled and which other consequences the educational expansion has had. This book will focus on consequences of the educational expansion for individuals and their life courses as well as for the social structure and other societal areas such as culture and politics. Aspects that will be analysed in the light of educational expansion include participation in education, educational inequalities, labour market outcomes, educational returns, and gender differences as well as crime, life expectancy, and lifestyles. Countries analysed in the book include West European countries like Germany, France, Italy and Spain, East European countries (Hungary, Poland, and the Czech Republic) as well as the US. [less ▲]

Detailed reference viewed: 123 (1 UL)
Full Text
Peer Reviewed
See detailExpected Running Time of Parallel Evolutionary Algorithms on Unimodal Pseudo-Boolean Functions over Small-World Networks
Muszynski, Jakub UL; Varrette, Sébastien UL; Bouvry, Pascal UL

in Proc. of the IEEE Congress on Evolutionary Computation (CEC'2013) (2013)

This paper proposes a theoretical and experimental analysis of the expected running time for an elitist parallel Evolutionary Algorithm (pEA) based on an island model executed over small-world networks ... [more ▼]

This paper proposes a theoretical and experimental analysis of the expected running time for an elitist parallel Evolutionary Algorithm (pEA) based on an island model executed over small-world networks. Our study assumes the resolution of optimization problems based on unimodal pseudo-boolean funtions. In particular, for such function with d values, we improve the previous asymptotic upper bound for the expected parallel running time from O(d√n) to O(d log n). This study is a first step towards the analysis of influence of more complex network topologies (like random graphs created by P2P networks) on the runtime of pEAs. A concrete implementation of the analysed algorithm have been performed on top of the ParadisEO framework and run on the HPC platform of the University of Luxembourg (UL). Our experiments confirm the expected speed- up demonstrated in this article and prove the benefit that pEA can gain from a small-world network topology. [less ▲]

Detailed reference viewed: 85 (1 UL)
Full Text
See detailExpediting in Two-Echelon Spare Parts Inventory Systems
Drent, Melvin UL; Arts, Joachim UL

E-print/Working paper (2019)

We consider a two-echelon spare parts inventory system consisting of one central warehouse and multiple local warehouses. Each warehouse keeps multiple types of repairable parts to maintain several types ... [more ▼]

We consider a two-echelon spare parts inventory system consisting of one central warehouse and multiple local warehouses. Each warehouse keeps multiple types of repairable parts to maintain several types of capital goods. The local warehouses face Poisson demand and are replenished by the central warehouse. We assume that unsatisfied demand is backordered at all warehouses. Furthermore, we assume deterministic lead times for the replenishments of the local warehouses. The repair shop at the central warehouse has two repair options for each repairable part: a regular repair option and an expedited repair option. Both repair options have stochastic lead times. Irrespective of the repair option, each repairable part uses a certain resource for its repair. Assuming a dual-index policy at the central warehouse and base stock control at the local warehouses, an exact and efficient evaluation procedure for a given control policy is formulated. To find an optimal control policy, we look at the minimization of total investment costs under constraints on both the aggregate mean number of backorders per capital good type and the aggregate mean fraction of repairs that are expedited per repair resource. For this non-linear non-convex integer programming problem, we develop a greedy heuristic and an algorithm based on decomposition and column generation. Both solution approaches perform very well with average optimality gaps of 1.56 and 0.23 percent, respectively, across a large test bed of industrial size. Based on a case study at Netherlands Railways, we show how managers can significantly reduce the investment in repairable spare parts when dynamic repair policies are leveraged to prioritize repair of parts whose inventory is critically low. [less ▲]

Detailed reference viewed: 347 (80 UL)
See detailL’expérience américaine de l’enseignement transétatique du droit
Cuniberti, Gilles UL

in Ancel, Pascal; Heuschling, Luc (Eds.) La transnationalisation de l’enseignement du droit (2016)

Detailed reference viewed: 16 (1 UL)
Peer Reviewed
See detail«L'expérience du paysage»
Roelens, Nathalie UL

in Poésie et description (1999)

Detailed reference viewed: 17 (1 UL)
Full Text
Peer Reviewed
See detailL'expérience gastronomique : comment faire signifier la nourriture
Colas-Blaise, Marion UL

in Indagini Semiotiche (2013), (14),

Detailed reference viewed: 106 (5 UL)
Peer Reviewed
See detail«L'expérience gustative au péril de ses excès»
Roelens, Nathalie UL

in Voir (2004)

Detailed reference viewed: 69 (3 UL)
Peer Reviewed
See detailThe experience of ageing: Views from without and within
Ferring, Dieter UL

in Rosa, Alberto; Valsiner, Jaan (Eds.) The Cambridge handbook of socio-cultural psychology (in press)

This chapter contrasts two different views on ageing. An external “view from without” starts in a first step with the description of phenomena associated with human ageing including the notions of death ... [more ▼]

This chapter contrasts two different views on ageing. An external “view from without” starts in a first step with the description of phenomena associated with human ageing including the notions of death and dying. This is followed by presenting an overview of central and mostly psychological models and theories about human ageing. Here, life span conceptions as well as theories on self-regulation of the ageing self are described and discussed. Furthermore, a specific focus is put on the differing qualifications that the term ageing has received in diverse theoretical models. The internal “view from within” finally starts with three case stories presenting excerpts of individual biographic narratives that highlight the importance of life events and adaptive processes within the family in the subjective construction of the self and the life course. The conclusion elaborates a person-centred approach in the study of human ageing taking into account that both family and culture interact in forming development in general as well as life in advancing age in particular. [less ▲]

Detailed reference viewed: 92 (23 UL)
Peer Reviewed
See detailThe Experience of Cognitive Intrusion of Pain: scale development and validation.
Attridge, Nina; Crombez, Geert; Van Ryckeghem, Dimitri UL et al

in Pain (2015), 156(10), 1978-90

Patients with chronic pain often report their cognition to be impaired by pain, and this observation has been supported by numerous studies measuring the effects of pain on cognitive task performance ... [more ▼]

Patients with chronic pain often report their cognition to be impaired by pain, and this observation has been supported by numerous studies measuring the effects of pain on cognitive task performance. Furthermore, cognitive intrusion by pain has been identified as one of 3 components of pain anxiety, alongside general distress and fear of pain. Although cognitive intrusion is a critical characteristic of pain, no specific measure designed to capture its effects exists. In 3 studies, we describe the initial development and validation of a new measure of pain interruption: the Experience of Cognitive Intrusion of Pain (ECIP) scale. In study 1, the ECIP scale was administered to a general population sample to assess its structure and construct validity. In study 2, the factor structure of the ECIP scale was confirmed in a large general population sample experiencing no pain, acute pain, or chronic pain. In study 3, we examined the predictive value of the ECIP scale in pain-related disability in fibromyalgia patients. The ECIP scale scores followed a normal distribution with good variance in a general population sample. The scale had high internal reliability and a clear 1-component structure. It differentiated between chronic pain and control groups, and it was a significant predictor of pain-related disability over and above pain intensity. Repairing attentional interruption from pain may become a novel target for pain management interventions, both pharmacologic and nonpharmacologic. [less ▲]

Detailed reference viewed: 26 (1 UL)
See detailExpérience religieuse et modernité
Sosoe, Lukas UL

Scientific Conference (2015, April)

Detailed reference viewed: 36 (0 UL)
Full Text
Peer Reviewed
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 (2018), 23(4),

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 ▲]

Detailed reference viewed: 217 (20 UL)
Full Text
Peer Reviewed
See detailExperience report: How to extract security protocols’ specifications from C libraries
Vazquez Sandoval, Itzel UL; Lenzini, Gabriele UL

in 2018 IEEE 42nd Annual Computer Software and Applications Conference (COMPSAC), Volume 2 (2018, June)

Often, analysts have to face a challenging situation when formally verifying the implementation of a security protocol: they need to build a model of the protocol from only poorly or not documented code ... [more ▼]

Often, analysts have to face a challenging situation when formally verifying the implementation of a security protocol: they need to build a model of the protocol from only poorly or not documented code, and with little or no help from the developers to better understand it. Security protocols implementations frequently use services provided by libraries coded in the C programming language; automatic tools for codelevel reverse engineering offer good support to comprehend the behavior of code in object-oriented languages but are ineffective to deal with libraries in C. Here we propose a systematic, yet human-dependent approach, which combines the capabilities of state-of-the-art tools in order to help the analyst to retrieve, step by step, the security protocol specifications from a library in C. Those specifications can then be used to create the formal model needed to carry out the analysis. [less ▲]

Detailed reference viewed: 131 (29 UL)
Full Text
See detailL’expérience utilisateur : Relations entre utilisabilité et esthétique, affects et comportements dans une tâche de recherche d’information sur tablettes numériques
Pere, Maxime UL

Bachelor/master dissertation (2016)

While the study of human-machine interactions is fairly well established regarding usability dimensions, the approach of the user experience, more recent, incorporates new dimensions in order to bring to ... [more ▼]

While the study of human-machine interactions is fairly well established regarding usability dimensions, the approach of the user experience, more recent, incorporates new dimensions in order to bring to light on these interactions. This work takes part in this approach and aims to clarify the relationship between a non-functional quality and a functional quality of a system, the main effect of these qualities on the affects experienced during the interaction with the system and finally the effect of the system qualities on behaviours. A research information task on 4 Websites corresponding to both crossed variables, aesthetics (high vs low) and usability (high vs low), should allow us to explore these questions through self-reports measures and behavioural recording. In addition, we attempt to identify relevant indicators which have not been used much yet. This study is run on touch tablet computers on Windows systems. [less ▲]

Detailed reference viewed: 88 (15 UL)
Full Text
Peer Reviewed
See detailL’expérience utilisateur : un concept sans consensus? Enquête sur le point de vue des professionnels
Lallemand, Carine UL; Gronier, Guillaume; Koenig, Vincent UL

in van de Leemput, Cécile; Chauvin, Christine; Hellemans, Catherine (Eds.) Activités humaines, Technologies et Bien-être (2013)

Depuis une dizaine d’années, le concept d’expérience utilisateur (UX) se répand dans le domaine des Interactions Homme-Machine (IHM). Centré sur l’utilisateur et son expérience subjective vécue de ... [more ▼]

Depuis une dizaine d’années, le concept d’expérience utilisateur (UX) se répand dans le domaine des Interactions Homme-Machine (IHM). Centré sur l’utilisateur et son expérience subjective vécue de l’interaction avec un système interactif, l’UX s’intéresse, entre autres, aux aspects émotionnels, hédoniques ou encore esthétiques composant l’interaction. Cependant, bien que déjà très utilisé par les professionnels, ce concept souffre notamment d’un manque de recherche empirique. De plus, de nombreuses définitions et perspectives sur l’UX cohabitent sans donner lieu à un consensus scientifique clair. Or, pour progresser dans ce champ de recherche, l’enseigner, ou pour communiquer sur celui-ci, il est nécessaire de mieux le comprendre et le délimiter. Une enquête par questionnaire (adaptée de Law et al., 2009) réalisée sur 758 professionnels et chercheurs de plus de 35 nationalités permet de mieux comprendre comment ce concept est compris et utilisé à travers le monde. Les résultats montrent des divergences entre les profils des participants. [less ▲]

Detailed reference viewed: 146 (5 UL)
Full Text
Peer Reviewed
See detailExperience-based guidelines for effective and efficient data extraction in systematic reviews in software engineering
Garousi, Vahid UL; Felderer, Michael

in Proceedings of International Conference on Evaluation and Assessment in Software Engineering (EASE) (2017, June)

To systematically collect evidence and to structure a given area in software engineering (SE), Systematic Literature Reviews (SLR) and Systematic Mapping (SM) studies have become common. Data extraction ... [more ▼]

To systematically collect evidence and to structure a given area in software engineering (SE), Systematic Literature Reviews (SLR) and Systematic Mapping (SM) studies have become common. Data extraction is one of the main phases (activities) when conducting an SM or an SLR, whose objective is to extract required data from the primary studies and to accurately record the information researchers need to answer the questions of the SM/SLR study. Based on experience in a large number of SM/SLR studies, we and many other researchers have found the data extraction in SLRs to be time consuming and error-prone, thus raising the real need for heuristics and guidelines for effective and efficient data extraction in these studies, especially to be learnt by junior and young researchers. As a ‘guideline’ paper, this paper contributes a synthesized list of challenges usually faced during SLRs’ data extraction phase and the corresponding solutions (guidelines). For our synthesis, we consider two data sources: (1) the pool of 16 SLR studies in which the authors have been involved in, as well as (2) a review of challenges and guidelines in the existing literature. Our experience in utilizing the presented guidelines in the near past have helped our junior colleagues to conduct data extractions more effectively and efficiently. [less ▲]

Detailed reference viewed: 114 (7 UL)
See detailExperiences and Perspectives of European Higher Education
Hoenig, Barbara UL

in Langer, Josef; Vlasic, Goran; Krce Miocic, Bozena (Eds.) EU Local Imprints: The Case of South Central Europe (2012)

Detailed reference viewed: 15 (4 UL)
Full Text
Peer Reviewed
See detailExpériences économiques de l’entre-deux-guerres et projets européistes
Clavert, Frédéric UL

in Guieu, Jean-Michel; Le Dréau, Christophe (Eds.) Autour du Congrès de l'Europe à La Haye (2009)

Expériences économiques de l’entre-deux-guerres et projets européistes. Publication du colloque « Autour du Congrès de l’Europe à La Haye », PIE – Peter Lang, 2009.

Detailed reference viewed: 21 (0 UL)
See detailExpériences migratoires et vieillissement au Luxembourg
Karl, Ute UL; Kühn, Boris; Ramos, Anne Carolina UL

in Aktiv am Liewen (2014), 49

Detailed reference viewed: 21 (1 UL)