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See detailLes premières élections sociales en 1903: une rupture historique
Scuto, Denis UL

Article for general public (2019)

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See detailPremiers espaces de la cohomologie de l'algèbre de Lie graduée de Nijenhuis-Richardson de l'espace des fonctions d'une variété
Poncin, Norbert UL

in Bulletin of the Belgian Mathematical Society Simon Stevin (2001), 8(1), 141-146

Detailed reference viewed: 62 (1 UL)
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See detailPremiers pas dans le métier d'enseignant: quand la langue s'en mêle
de Saint-Georges, Ingrid UL

E-print/Working paper (2017)

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See detailPremise Independence in Judgment Aggregation
Pigozzi, Gabriella UL; van der Torre, Leon UL

in Formal Models of Belief Change in Rational Agents (2007)

Judgment aggregation studies how agent opinions on logically interconnected propositions can be mapped into a collective judgment on the same propositions, and is plagued by impossibility results. In this ... [more ▼]

Judgment aggregation studies how agent opinions on logically interconnected propositions can be mapped into a collective judgment on the same propositions, and is plagued by impossibility results. In this paper we study the central notion of independence in these impossibility results. First, we argue that the distinction between the premises and conclusions play an important role in the benchmark examples of judgment aggregation. Second, we consider the notion of independence in judgment aggregation frameworks, and we observe that the distinction between premises and conclusion is not taken into account. Third, based on our analysis, we introduce independence assumptions that distinguish premises from conclusion. We show that, by introducing new operators that satisfy our independence assumptions, the problematic impossibility results no longer hold. [less ▲]

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See detailPrenatal Economic Shocks and Birth Outcomes in UK Cohort Data
Clark, Andrew; d'ambrosio, Conchita UL; Rohde, Nicholas

in Economics and Human Biology (2021), 41

We consider the effects of major prenatal economic shocks experienced by mothers on two indicators of newborn-infant health, birth weight and head circumference, using detailed microdata from the UK ... [more ▼]

We consider the effects of major prenatal economic shocks experienced by mothers on two indicators of newborn-infant health, birth weight and head circumference, using detailed microdata from the UK ALSPAC survey. Controlling for physiological and socioeconomic factors, an economic shock in the first 18 weeks of gestation lowers birth weight by 40-70 grams and head circumference by 2-3mm. We find evidence of transmission via poorer maternal health due to absolute material deprivation and tobacco and alcohol consumption, but not for the endocrinological effects of increased psychosocial anxiety. The fragile-male hypothesis holds for birth weight but not for head circumference, as predicted by recent theories on gender differences in prenatal development. [less ▲]

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See detailPrenatal maternal stress and child developmental outcome: Implications for health care provision?
Pit-Ten Cate, Ineke UL

in Developmental Medicine & Child Neurology (2014), 56(3), 204-205

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See detailPrendre la compétitivité au sérieux ?
Sneessens, Henri UL

Conference given outside the academic context (2015)

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See detailPrendre soin d'une victime d'AVC : réactions des aidants familiaux femmes et hommes
Bucki, Barbara UL

in Legrand, Monique; Voléry, Ingrid (Eds.) Genre et parcours de vie (2013)

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See detailPrendre soin des personnes après AVC : réactions émotionnelles des aidants informels hommes et femmes.
Bucki, Barbara UL; Baumann, Michèle UL

in Santé Publique : Revue Multidisciplinaire pour la Recherche et l'Action (2012), 24(2), 143-156

The objective of this study was to assess the emotional response to caregiving among stroke caregivers living in Luxembourg, and to assess the social and psychological impact of strokes on households, two ... [more ▼]

The objective of this study was to assess the emotional response to caregiving among stroke caregivers living in Luxembourg, and to assess the social and psychological impact of strokes on households, two years after the event. Questionnaires were administered to 62 patient (64.4 years old)/caregiver (59.3 years old) dyads. The survey focused on: 1) residual impairments, based on the American Heart Association Stroke Outcome Classification; 2) the Caregiver Reaction Assessment (CRA – 24 items – 5 dimensions); and 3) changes in the division of household tasks (seven items). Although male and female caregivers care for patients with similar residual impairments, the study found that female caregivers were more likely to be affected by the impact of caregiving on their health and schedule and by lack of family support. Women were more likely to feel “tired all the time” (50% vs. 12.5%), to struggle to “find time to relax” (35.7% vs. 6.3%) and to feel that “others dumped caring onto them” (35.7% vs. 11.8%). Since the onset of stroke, women had also taken on more responsibilities in the household (37.5% vs. 5.9%), while men were more likely to “enjoy caring” for patients (93.8% vs. 67.9%) and to have become more involved in organizing holidays (29% vs. 5.6%) and seeing friends (20.6% vs. 10.5%). Because of the high level of exhaustion, particularly among women, caregivers are a high-risk population for the healthcare system. Interventions such as trialogue and counseling are required to meet the needs of male and female caregivers. [less ▲]

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See detailPreparation and study of 2-D semiconductors with Dirac type bands due to the honeycomb nanogeometry
Kalesaki, Efterpi UL; Boneschanscher, M. P.; Geuchies, J. J. et al

in Proceedings of SPIE (2014, March 07), 8981

The interest in 2-dimensional systems with a honeycomb lattice and related Dirac-­type electronic bands has exceeded the prototype graphene [1]. Currently, 2-­dimensional atomic [2,3] and nanoscale [4-­8 ... [more ▼]

The interest in 2-dimensional systems with a honeycomb lattice and related Dirac-­type electronic bands has exceeded the prototype graphene [1]. Currently, 2-­dimensional atomic [2,3] and nanoscale [4-­8] systems are extensively investigated in the search for materials with novel electronic properties that can be tailored by geometry. The immediate question that arises is how to fabricate 2-­D semiconductors that have a honeycomb nanogeometry, and as a consequence of that, display a Dirac-­type band structure? Here, we show that atomically coherent honeycomb superlattices of rocksalt (PbSe, PbTe) and zincblende (CdSe, CdTe) semiconductors can be obtained by nanocrystal self-­assembly and facet-­to-­facet atomic bonding, and subsequent cation exchange. We present a extended structural analysis of atomically coherent 2-­D honeycomb structures that were recently obtained with self-assembly and facet-­to-­facet bonding [9]. We show that this process may in principle lead to three different types of honeycomb structures, one with a graphene type-­, and two others with a silicene-­type structure. Using TEM, electron diffraction, STM and GISAXS it is convincingly shown that the structures are from the silicene-­type. In the second part of this work, we describe the electronic structure of graphene-­type and silicene type honeycomb semiconductors. We present the results of advanced electronic structure calculations using the sp3d5s* atomistic tight-­binding method10. For simplicity, we focus on semiconductors with a simple and single conduction band for the native bulk semiconductor. When the 3-­D geometry is changed into 2-­D honeycomb, a conduction band structure transformation to two types of Dirac cones, one for S-­ and one for P-­orbitals, is observed. The width of the bands depends on the honeycomb period and the coupling between the nanocrystals. Furthermore, there is a dispersionless P-­orbital band, which also forms a landmark of the honeycomb structure. The effects of considerable intrinsic spin-­orbit coupling are briefly considered. For heavy-­element compounds such as CdTe, strong intrinsic spin-­‐orbit coupling opens a non-­trivial gap at the P-orbital Dirac point, leading to a quantum Spin Hall effect [10-­12]. Our work shows that well known semiconductor crystals, known for centuries, can lead to systems with entirely new electronic properties, by the simple action of nanogeometry. It can be foreseen that such structures will play a key role in future opto-­electronic applications, provided that they can be fabricated in a straightforward way. [less ▲]

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See detailPREPARATION FOR AGE-RELATED CHANGES-CROSS CULTURAL DIFFERENCES AND DETERMINANTS
Kornadt, Anna Elena UL; Voss, Peggy; Rothermund, Klaus

in GERONTOLOGIST (2016), 56(3), 657-657

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See detailPreparation for old age in different life domains Dimensions and age differences
Kornadt, Anna Elena UL; Rothermund, Klaus

in INTERNATIONAL JOURNAL OF BEHAVIORAL DEVELOPMENT (2014), 38(3), 228-238

We investigated preparation for age-related changes from a multidimensional, life span perspective and administered a newly developed questionnaire to a large sample aged 30-80 years. Preparing for age ... [more ▼]

We investigated preparation for age-related changes from a multidimensional, life span perspective and administered a newly developed questionnaire to a large sample aged 30-80 years. Preparing for age-related changes was organized by life domains, with domain-specific types of preparation addressing obstacles and opportunities in the respective domains. Preparing for a third (focusing on activities, leisure, work, fitness, appearance) and a fourth age (focusing on emergencies, dependence/independence, housing, financial arrangements) emerged as superordinate categories of preparation. Different age gradients were obtained for the factors, the former peaking around the age of 65, whereas the latter increased linearly up to the age of 80. Furthermore, preparation factors were characterized by distinct personality profiles. The findings attest to the importance of a differentiated view on preparation for age-related changes and its relevance across the life span. [less ▲]

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See detailPreparation for Old Age – The Role of Cultural Context and Future Perceptions
Kornadt, Anna Elena UL; Voss, Peggy; Fung, Helene H. et al

in The Journals of Gerontology. Series B. Psychological Sciences and Social Sciences (2019), 74(4), 609--619

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See detailPrepared enough to practise? Evaluating a study programme in social work
Engelberg, Elisabeth; Limbach-Reich, Arthur UL

in Journal of Social Work (2015), 0 (0)((0)), 1-17

Summary: Following the so-called Bologna reform in Luxembourg, 70 supervisors assessed the knowledge and skills of employees having qualified with a Bachelor’s degree under the recently introduced ... [more ▼]

Summary: Following the so-called Bologna reform in Luxembourg, 70 supervisors assessed the knowledge and skills of employees having qualified with a Bachelor’s degree under the recently introduced curriculum in social work and pedagogy. The supervisors were solicited as part of quality assurance regarding the study programme and their assessments were gathered by means of a questionnaire. The University of Luxembourg funded the study. Findings: The newly qualified practitioners were evaluated as adequately trained, while the need was highlighted for a better understanding of the process through which beginner practitioners are socialised into the profession. The results furthermore suggest that practice proficiency extensively draws on generic skills of particular relevance to the social professions. Applications: The findings prompt a more specific focus on generic skills and their role in developing proficiency during practice placements as well as during the first year of employment. Overall, the study serves as one example of how to evaluate the readiness to practise of newly qualified practitioners in the social professions. The output of such skills assessments could inform on any need for curriculum revision at a local level. With a cross-national and comparative approach, evaluations of this kind could potentially guide any adaptations needed in response to the increasing internationalisation of social problems. Keywords Social work, competence, evaluation, fitness to practise, quantitative research, social work education, social work skills [less ▲]

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See detailPréparer les futurs enseignants à l’utilisation stratégique des TICE: Une approche par projet
Busana, Gilbert UL; Reuter, Robert UL

Scientific Conference (2018, November 23)

Étant donné (1) le besoin d'enseignants désireux et capables de concevoir et de mettre en œuvre de façon fondée et réfléchie des pratiques techno-pédagogiques dans les écoles et (2) la rareté actuelle des ... [more ▼]

Étant donné (1) le besoin d'enseignants désireux et capables de concevoir et de mettre en œuvre de façon fondée et réfléchie des pratiques techno-pédagogiques dans les écoles et (2) la rareté actuelle des utilisations stratégiques des TIC dans les écoles au Luxembourg, le manque de compétences déclarées et la faible confiance des enseignants lorsqu'il s'agit d'enseigner avec les TIC (Reuter, Busana & Linckels, 2016), nous avons conçu, mis en œuvre et testé, dans la formation initiale des futurs enseignants de l’enseignement fondamental, une approche par projet pour le développement de compétences TICE. Nous demandons aux étudiants (1) d'explorer activement des problèmes pédagogiques réels, (2) de passer en revue les solutions pédagogiques existantes et les technologies potentiellement utiles, (3) de développer un scénario pédagogique original enrichi par les TIC et ayant une valeur ajoutée projetée selon le modèle SAMR (Puentedura, 2013), (4) de le mettre en œuvre dans un contexte scolaire réel, (5) de documenter, analyser et évaluer les activités d'apprentissage et d'enseignement mises en pratique, (6) de réfléchir sur base de connaissances scientifiques et de sagesses pédagogiques existantes et (7) de rapporter, par écrit et oralement, leurs expériences à un public authentique de pairs et de membres de la communauté scolaire. L'ensemble du processus a pour but d'engager les étudiants, de les faire travailler sur un projet dont ils sont les auteurs, de favoriser la collaboration, de mettre en place des apprentissages authentiques et orientés vers la pratique professionnelle et de leur permettre d'appliquer concrètement des concepts théoriques, comme la taxonomie des objectifs d'apprentissage de Bloom (Anderson & Krathwohl, 2001), la taxonomie des événements d'apprentissage et d'enseignement (Verpoorten, Poumay & Leclercq, 2008) et les stratégies d'intégration technologique (Roblyer & Doering, 2012). [less ▲]

Detailed reference viewed: 183 (12 UL)