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See detailComparative Evaluation of Models of Assistive Technologies’ Use
Abrilahij, Afsaneh UL; Boll, Thomas UL

Scientific Conference (2018, July 06)

Many older people have functional limitations and are at risk of losing their ability to live autonomously. Assistive Technology (AT) could help to reduce that risk. However, many older people don’t use ... [more ▼]

Many older people have functional limitations and are at risk of losing their ability to live autonomously. Assistive Technology (AT) could help to reduce that risk. However, many older people don’t use ATs. Our presentation reviews existing models of ATs use, their applicability to specific types of AT, predictive value, fundamental elements, and critiques of such models. In systematic literature searches in PsycINFO, MEDLINE, and Google Scholar 46 papers were identified that met our inclusion criteria. 32 papers covered models of ATs use, applicability to special types of ATs, components of models, and their predictive value. 14 papers cover criticisms of models of AT use. We classified the models into two groups: The first included 11 models focusing on individuals’ mental states (e.g., beliefs, desires) as factors explaining ATs use; the second included 22 models that also considered contextual factors (e.g., social influence, physical environment) in addition to individuals’ mental states. Across both groups the most frequently included explanatory components were subjective norm and personal attitudes towards AT use, followed by perceived usefulness, perceived ease of use and then intention to use. Models were most frequently applied to information technologies followed by application to socially assistive robots. Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) and an extended version of Technology Acceptance Model showed the highest amount of explained variance in intention to use (56-74%) and an extended model of UTAUT in actual use of ATs (64%). We conclude with recommendations for further improvement of AT use models. [less ▲]

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Peer Reviewed
See detailThe Reasons of Older people for the Use or Non-use of Assistive Technologies:
A Systematic Review of Qualitative Studies
Abrilahij, Afsaneh UL; Boll, Thomas UL

Scientific Conference (2018, July 06)

The baby boomer generation is aging and the proportion of older people in the population is increasing. While people age, functional, cognitive, and physical problems increase. Assistive technology (AT ... [more ▼]

The baby boomer generation is aging and the proportion of older people in the population is increasing. While people age, functional, cognitive, and physical problems increase. Assistive technology (AT) can help to overcome some activity limitations relevant to aging. Although ATs have potential benefits (e.g., to reduce the burden of caregivers, to increase independence), their usage rate is still low. Whereas several reviews of quantitative studies on factors of ATs use already exist, a systematic review of qualitative research about AT use is still missing. The aim of the current review is to provide more differentiated answers about what makes some older people use ATs while others not. Based on systematic literature searches in PsycINFO, MEDLINE, and Google Scholar databases 18 relevant papers were identified according to our selection criteria. These studies were based on to self-reported reasons of older people for using or not-using diverse types of ATs designed for many different activities. We classified the key reasons as referring to three aspects: attributes of “potential technology users”, “context”, and “technology”. Perceived usefulness and attitudes towards use were the most common “personal” reasons and social impact by significant others was the most common “contextual” reason, and technology design was the most common “technological” reason influencing use or non-use of ATs. We discussed the identified reasons in relation to the major models of developmental self-regulation and action-theoretical approaches to development in age. Based on the current review, we generated methodological and theoretical recommendations for future research and for practical applications. [less ▲]

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Peer Reviewed
See detailNational, European or Cosmopolitan identification? Insights from the heart of Europe
Murdock, Elke UL; Kraus, Xavier; Ferring, Dieter UL

Scientific Conference (2018, July 04)

Trilingual Luxembourg shares borders with three European countries and has a foreign population percentage of 47%. Given this multicultural context we wanted to explore firstly the national, supra ... [more ▼]

Trilingual Luxembourg shares borders with three European countries and has a foreign population percentage of 47%. Given this multicultural context we wanted to explore firstly the national, supra-national or non-national identification among the native population, secondly their stereotypical judgements of EU Member State countries and attitudes towards the European Union and thirdly identify predictors for cosmopolitanism. With a sentence completion task we investigated the reasons for a feeling of belonging to a national entity or lack of it. All 255 participants in our study (Mage = 38.8 SD = 10.7, 59% female) had Luxembourgish citizenship. Forty percent provided a national self-identification (“Luxembourger”), 36% supra-national identification (“European”) and 24% a non-national identification (“cosmopolitan”). These three groups did not differ in terms of stereotypical assessments of the EU Member states regarding warmth and competence (stereotype content model). Yet, when asked about their own assessment of Luxembourg, differences occurred with supra- and non-national identifiers providing significantly lower ratings under the self-rating condition. The three groups differed in their attitude towards the European Union. Low commitment (MEIM subscale), high contact with non-natives and group self-identification predicted cosmopolitanism. There were no effects in terms of self-efficacy, age, gender or socioeconomic status. The content analysis of the sentence completion exercise revealed that affective components dominated arguments for belonging whereas cognitive reasoning governed the statements expressing a lack of belonging. The implications of these findings among natives within the multicultural context of Luxembourg will be discussed – against the rise of nationalism in many European countries and beyond. [less ▲]

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See detailAn n-ary generalization of the concept of distance
Kiss, Gergely; Marichal, Jean-Luc UL; Teheux, Bruno UL

Scientific Conference (2018, July 03)

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See detailApprentissage formel, non-formel et informel de musique dans la communauté. Comment correspondent-ils
Sagrillo, Damien UL

Scientific Conference (2018, July 02)

Tandis que le concept de l’apprentissage formel, non-formel et informel est supposé connu en ce qui concerne ses orientations générales, il en est moins pour la pédagogie musicale. Sa vue sous différents ... [more ▼]

Tandis que le concept de l’apprentissage formel, non-formel et informel est supposé connu en ce qui concerne ses orientations générales, il en est moins pour la pédagogie musicale. Sa vue sous différents angles, notamment sous l’optique de la musique pour amateurs, fera l’objet de ma communication. De l'autre côté, le concept de musique dans la communauté est emprunté de l’anglais « community music ». Celui-ci signifie que la pratique des amateurs de musique est fondée sur des activités de loisir. Mais il existe bien d’autres volets qui pourraient être regroupés sous la perspective d’une musique dans ou par la communauté. D’abord il semble qu’il est totalement dissocié des méthodes traditionnelles d’apprentissage musical de nature formelle ou non-formelle. Mais il serait plutôt lié à une éducation de nature informelle qui, cependant, ne peut pas être mise en relation avec l’autodidactie. Des approches récentes la voient en rapport avec l’inclusion et la participation réalisée dans un milieu associatif et comme moyen de surmonter l’obstacle qui existe entre la pédagogie musicale traditionnelle et les exigences de la communauté musicale. De l’autre côté, la musique dans la communauté se présente comme un contre-projet face à la haute culture musicale professionnalisée (Lichtinger 2013). En ce qui concerne le terme de « community music », il n’existe pas de traduction littérale française. Cependant, il est parfaitement approprié de retracer le processus d’une éducation musicale des jeunes qui commence souvent par une phase amateur pour mener par après à la vie professionnelle pour les plus doués, soit pour décrire la formation et la vie musicale des jeunes amateurs, soit pour retracer la vie de musicien amateur tout au long de la vie de ces musicophiles. Dans ma communication, je présenterai des définitions pour chacun des trois aspects de formation musicale n’ignorant pas que surtout pour l’éducation musicale de type non-formel il n’existe pas de consensus. Ensuite, je mettrai en relation les deux concepts – i.e. celui des trois aspects de formation musicale et celui de la musique dans la communauté – en donnant des exemples d’une pratique musicale très répandue, à savoir la musique à vent (et/ou chant choral) pour enfin comparer des modèles d’apprentissage musical tels qu’ils existent et sont appliqués dans différents pays européens liés à cette tradition. [less ▲]

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See detailThe Multicultural Ideology Scale (MIS): Factor structure and measurement invariance
Stogianni, Maria UL; Murdock, Elke UL

Scientific Conference (2018, July 02)

The concept of multiculturalism has been widely used in cross-cultural research to describe positive attitudes towards a culturally plural society and practices that support cultural diversity. To date ... [more ▼]

The concept of multiculturalism has been widely used in cross-cultural research to describe positive attitudes towards a culturally plural society and practices that support cultural diversity. To date, attitudes towards multiculturalism among majority and minority group members have been assessed with the same instruments. However, there is little psychometric evidence that these measures operate appropriately in various cultural contexts. The purpose of the present study was to investigate the factor structure of the Multicultural Ideology Scale (MIS; Berry & Kalin, 1995) and test its measurement invariance across different language versions and ethnic groups. The entire sample consisted of 1572 adolescents and adults in Luxembourg, including native majority members (N = 693) and immigrants from diverse ethnic backgrounds (N = 879). Participants were given the option to complete the questionnaire in one of the following languages: English, German or French. The unidimensional model of multicultural ideology did not show an acceptable fit of the data across all language versions of the MIS. Exploratory and confirmatory factorial analyses revealed a two-factor structure, which was partially invariant across two different language versions (English and German). The two factors reflected positive and negative attitudes towards cultural diversity respectively. Subsequent multigroup confirmatory factor analyses supported configural and metric invariance across majority and minority group members. Scalar invariance was not established, indicating that respondents across these two groups conceptualize multiculturalism in different ways. Implications of these findings are discussed together with methodological issues concerning the assessment of measurement invariance. [less ▲]

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See detailReduced modulatory effects of distraction on pain due to aging
Siquier, A; Prats, MA; Montoya, P et al

Scientific Conference (2018, July)

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See detail23. Konferenz der IGEB 19. bis 24. Juli 2018, Wadgassen, Deutschland. Neue Technologien und Innovationen in der Blasmusikforschung und –ausbildung.
Sagrillo, Damien UL

Book published by Kliment - Konferenzbuch / Conference Guide 2018 (2018)

The present compilation of abstracts and biographies contains all texts received before June 15th, 2018. The translations have been provided by each author. Texts and translations are the sole ... [more ▼]

The present compilation of abstracts and biographies contains all texts received before June 15th, 2018. The translations have been provided by each author. Texts and translations are the sole responsibility of the authors and not of the editors. Automated translations have been removed. We ask for your understanding [less ▲]

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See detailRisk Monitoring and Intrusion Detection for Industrial Control Systems
Muller, Steve UL

Doctoral thesis (2018)

Cyber-attacks on critical infrastructure such as electricity, gas, and water distribution, or power plants, are more and more considered to be a relevant and realistic threat to the European society ... [more ▼]

Cyber-attacks on critical infrastructure such as electricity, gas, and water distribution, or power plants, are more and more considered to be a relevant and realistic threat to the European society. Whereas mature solutions like anti-malware applications, intrusion detection systems (IDS) and even intrusion prevention or self-healing systems have been designed for classic computer systems, these techniques have only been partially adapted to the world of Industrial Control Systems (ICS). As a consequence, organisations and nations fall back upon risk management to understand the risks that they are facing. Today's trend is to combine risk management with real-time monitoring to enable prompt reactions in case of attacks. This thesis aims at providing techniques that assist security managers in migrating from a static risk analysis to a real-time and dynamic risk monitoring platform. Risk monitoring encompasses three steps, each being addressed in detail in this thesis: the collection of risk-related information, the reporting of security events, and finally the inclusion of this real-time information into a risk analysis. The first step consists in designing agents that detect incidents in the system. In this thesis, an intrusion detection system is developed to this end, which focuses on an advanced persistent threat (APT) that particularly targets critical infrastructures. The second step copes with the translation of the obtained technical information in more abstract notions of risk, which can then be used in the context of a risk analysis. In the final step, the information collected from the various sources is correlated so as to obtain the risk faced by the entire system. Since industrial environments are characterised by many interdependencies, a dependency model is elaborated which takes dependencies into account when the risk is estimated. [less ▲]

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See detailThe implementation of Circular Economy policies: A challenge for institutions and practices
Hild, Paula UL

Scientific Conference (2018, June 14)

Since 2014, the Grand Duchy of Luxembourg’s national policy aims at transitioning the national economy from a linear to a circular model. However, we do not know so far how the different socio-economic ... [more ▼]

Since 2014, the Grand Duchy of Luxembourg’s national policy aims at transitioning the national economy from a linear to a circular model. However, we do not know so far how the different socio-economic actors in the country deal with this new political vision. Thus, the overall aim of the CIRCULUX research project is to analyse the effectiveness of the circular economy policy in Luxembourg by studying institutions and practices in businesses. In this way, we follow authors who claim for the systematic inclusion of institutions into the analysis of policy effectiveness (Glückler and Lenz, 2016). We assume that institutions explain sectoral differences in the efficacy of circular economy policies, in analogy to Bathelt and Glückler (2014) who state that in a comparative study, institutions enable to clarify regional differences. Focusing on two different industries, the building sector and the automotive supply industry, we hope to explore the variety of circular economy practices, and therefore as well theoretical and pragmatic implications between the United Nations Sustainable Development Goals 9 (Industry, Innovation, and Infrastructure) and 12 (Responsible Consumption and Production). The research follows a qualitative research approach, including documentary analysis, up to 20 exploratory and around 50 semi-structured expert interviews. We intend to capture different dimensions of the motivations and barriers of companies for shifting towards circularity, by triangulation of these three datasets. In the analysis of data, we consider different levels and emphasise on three points highlighted by various authors for a need for further consideration. The first aspect focus on the socio-cultural specificities of Luxembourg and related challenges for the implementation of a circular economy (e.g., the mix of technical standards, multilingualism, corporate cultures). The second aspect covers the internal dynamics of actor networks and hybrid organisations that aim to bring circular economy theory into practice (Schulz and Preller, 2016). Moreover, the third aspect deals with the articulation between sustainability effectiveness and the cost from the perspectives of various stakeholders (Ruparathna and Hewage, 2015). The preliminary results put forward the interdependence of the actors’ perception of what would mean a circular economy model for Luxembourg. They also reveal the firm’s specific role in this system. The decision of a business actor to implement a circular economy practice depends primarily on its return on investment, the general regulatory pressure and the maturity of the industry and the company. In general, the hindrance for circularity is not the absence of a technological or technical solution. Interviews with experts from the business sector reveal that notably economic factors are hindering circularity in companies. Besides, the maturity of the firm given its awareness for concepts like the circular economy, sustainable development, or sustainability shapes its vision for the future in this field actively. As a push for action, interviewees suggested a regulatory framework for circularity. [less ▲]

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See detailSoftening and melting modeling of iron ore particles using a discrete - continuous coupling method
Baniasadi, Mehdi UL; Baniasadi, Maryam; Peters, Bernhard UL

Scientific Conference (2018, June 13)

The blast furnace iron making is the main method to produce liquid iron. A blast furnace is charged with ore and coke from the top along with a preheated gas introduced to the furnace through the tuyeres ... [more ▼]

The blast furnace iron making is the main method to produce liquid iron. A blast furnace is charged with ore and coke from the top along with a preheated gas introduced to the furnace through the tuyeres in the lower part. The combustion of coke generates reducing gas ascending through the blast furnace to reduce iron-bearing materials. The reduced iron-bearing particles start softening and melting because of the weight of burden above and the high temperature in the middle of the blast furnace so-called cohesive zone. In this region, as particles are softened, the void space between particles decreases. As the temperature increases further, the softened particles start melting and generate two different liquids: molten iron and slag. Then the generated liquids trickle down to the lower part of the blast furnace. The softening and melting process forms the impermeable ferrous layers forcing gas to flow horizontally through the permeable coke windows. This causes a high-pressure drop. Softening and melting has a big effect on the operation of the blast furnace and since it is not possible to interrupt the blast furnace to investigate details of the phenomena occurring inside, the numerical simulation becomes more practical. In this contribution, the eXtended Discrete Element Method (XDEM) [1] as an advanced numerical tool based on the Eulerian-Lagrangian framework, is used. Within this platform, the gas and liquid phases are described by computational fluid dynamics (CFD) and the soft-sphere discrete element approach (DEM) is used for the coke and iron ore particles. Continuous phases are coupled to the discrete entities through mass, momentum, and energy exchange. Moreover, the internal temperature distribution of the particles is described. Therefore, the XDEM is able to model multiphase and multiscale phenomena as can occur in the cohesive zone. The particle's deformation, temperature, melting, and shrinking along with gas and liquids pressure, temperature and velocity patterns are examined using the XDEM method. [less ▲]

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See detailThéorie des Codes : Compression, Cryptage et Correction
Dumas, J.-G.; Roch, J.-L.; Tannier, E. et al

Book published by Dunod - 3rd (2018)

Transmettre des informations sous forme numérique suppose entre autres d’optimiser la taille des messages transmis pour éviter de surcharger les canaux de transmission, d’être capable de rectifier des ... [more ▼]

Transmettre des informations sous forme numérique suppose entre autres d’optimiser la taille des messages transmis pour éviter de surcharger les canaux de transmission, d’être capable de rectifier des erreurs apparues en cours de transmission, de crypter les contenus et d’authentifier les émissaires et les destinataires… L’originalité de cet ouvrage est de présenter tous les fondements mathématiques et informatiques sur lesquels reposent ces techniques. Les notions théoriques présentées sont illustrées par 140 exercices corrigés. Cette 3e édition s’enrichit de compléments sur les infrastructures à clefs publiques (PKI), les courbes elliptiques, les registres à décalage (LFSR), les fonctions de hachage. L’utilisation de la cryptographie dans les applications mobiles (Facebook, Messenger, WhatsApp…) est abordée, et des bonnes pratiques de sécurité sont présentées pour des utilitaires incontournables comme GPG et SSH. [less ▲]

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See detailLe changement de rôle des patients de maladie Chronique dans l'organisation des soins
Odero, Angela UL; Bucki, Barbara; Baumann, Michèle UL

in Pratiques et interventions en santé (2018, June)

Introduction: Les patients sont de plus en plus impliqués dans les soins qui exigent leur engagement dans la surveillance, la prévention des risques, l'auto-éducation et l'auto-traitement. Les ... [more ▼]

Introduction: Les patients sont de plus en plus impliqués dans les soins qui exigent leur engagement dans la surveillance, la prévention des risques, l'auto-éducation et l'auto-traitement. Les professionnels, quant à eux, ils sont plus enclins à adopter avec leurs patients des modèles d'interaction équitable. Sur le plan théorique, une Approche Patient Partenaire de Soins (APPS) a été proposée par des chercheurs canadiens. Pour clarifier ce que représente l’APPS, une étude qualitative a tenté d’analyser les facteurs culturels et psychosociaux qui interviennent dans la mise en place d’une APPS. Méthode : Avec l’appui des associations luxembourgeoises, six focus groupes ont été organisés avec 30 patients. A partir des retranscriptions, une analyse de contenu thématique catégorielle a été réalisée avec l’aide de N’Vivo 12 Résultats: Parmi les obstacles qui freinent une APPS, des divergences culturelles entre patients et professionnels de santé sont évoqués. Des patients préfèrent en effet rester en harmonie avec leurs valeurs et refusent de partager les prises de décision, pour eux seuls les professionnels doivent les prendre. Les échanges avec les professionnels restent compliqués car des positions dominantes et autoritaires demeurent. Parmi les facteurs favorisants APPS, on peut retenir le fait que les patients estiment avoir une connaissance de leur corps, et qu’ils ressentent l’impact que peut avoir les effets secondaires des traitements ; ceci à condition qu’ils soient capables de les verbaliser. Enfin l'accent est mis sur une confiance réciproque. Conclusion: Une éducation des patients devrait être développée pour leur permettre d’acquérir un «Capital Culturel en Santé» ; une connaissance de base favorisant la compréhension des soins et facilitant les relations avec les professionnels de santé. De même, une formation médicale et une pratique infirmière plus soutenues par des «Compétences Culturelles» permettaient aux professionnels de mieux reconnaître l'impact socioculturel que peut avoir leur identité lors de leurs relations avec les patients. [less ▲]

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See detailEuropean institutions and european enterprises
Paravantis, Spero UL

Presentation (2018, May 30)

Seminar on "European institutions and European enterprises" (Seminar at Catholic University of the Sacred Heart, Milan, Italy, May 30 2018. From 01:00 to 24:00. I explain the Origins of the Rules ... [more ▼]

Seminar on "European institutions and European enterprises" (Seminar at Catholic University of the Sacred Heart, Milan, Italy, May 30 2018. From 01:00 to 24:00. I explain the Origins of the Rules surrounding the freedom of establishment in the EU. NOTE: the computer crashed before the seminar, so I had to look to the large screen to my left to read the notes. This is why I am looking left throughout the video.) [less ▲]

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See detailJugendliche mit erhöhtem Förderbedarf in den Projekten von Erasmus+: Jugend in Aktion - Beschreibung und Effekte
Meyers, Christiane UL; Mayerl, Martin

Conference given outside the academic context (2018)

Detailed reference viewed: 20 (3 UL)
See detailWWI and WWII reparations and European Integration, Part II
Paravantis, Spero UL

Presentation (2018, May 28)

A short video lecture explaining the marshal plan, and its impact on WWI and WWII reparations, the re-integration of Germany and German Economic recovery after WWII.

Detailed reference viewed: 3 (1 UL)