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See detailSequential Resource Distribution Technique for Multi-User OFDM-SWIPT based Cooperative Networks
Gautam, Sumit UL; Lagunas, Eva UL; Chatzinotas, Symeon UL et al

Scientific Conference (2018, December)

In this paper, we investigate resource allocation and relay selection in a dual-hop orthogonal frequency division multiplexing (OFDM)-based multi-user network where amplify-and-forward (AF) enabled relays ... [more ▼]

In this paper, we investigate resource allocation and relay selection in a dual-hop orthogonal frequency division multiplexing (OFDM)-based multi-user network where amplify-and-forward (AF) enabled relays facilitate simultaneous wireless information and power transfer (SWIPT) to the end-users. In this context, we address an optimization problem to maximize the end-users’ sum-rate subjected to transmit power and harvested energy constraints. Furthermore, the problem is formulated for both time-switching (TS) and power-splitting (PS) SWIPT schemes.We aim at optimizing the users’ SWIPT splitting factors as well as sub-carrier–destination assignment, sub-carrier pairing, and relay–destination coupling metrics. This kind of joint evaluation is combinatorial in nature with non-linear structure involving mixed-integer programming. In this vein, we propose a sub-optimal low complex sequential resource distribution (SRD) method to solve the aforementioned problem. The performance of the proposed SRD technique is compared with a semi-random resource allocation and relay selection approach. Simulation results reveal the benefits of the proposed design under several parameter values with various operating conditions to illustrate the efficiency of SWIPT schemes for the proposed techniques. [less ▲]

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See detailResearching education in Luxembourg (symposium)
Fischbach, Antoine UL

Scientific Conference (2018, November 08)

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See detailAußerschulisches Lesen und Lesekompetenz Zum Zusammenhang zwischen den Deutsch- und Französisch- Lesekompetenzen von Neuntklässlerinnen und Neuntklässlern und ihren außerschulischen Lesegewohnheiten in Luxemburg.
Reichert, Monique UL; Krämer, Charlotte UL; Rivas, Salvador UL et al

Scientific Conference (2018, November)

In Luxemburg erreichen viele Jugendliche ein gutes Lesekompetenzniveau nicht nur in einer, sondern gleich in zwei Sprachen. Allerdings wird wiederholt darauf hingewiesen, dass die Lesekompetenzen in ... [more ▼]

In Luxemburg erreichen viele Jugendliche ein gutes Lesekompetenzniveau nicht nur in einer, sondern gleich in zwei Sprachen. Allerdings wird wiederholt darauf hingewiesen, dass die Lesekompetenzen in Luxemburg stark mit dem familiären Hintergrund der Schülerinnen und Schüler zusammenhängen. Die vorliegende Studie soll jedoch über die Darstellung der Zusammenhänge zwischen den Deutsch- und Französisch-Lesekompetenzen und Einflussfaktoren wie sozio-ökonomischem Hintergrund, Migrationsstatus und Muttersprache hinausgehen. In der Tat stellt sich die Frage, ob es Faktoren gibt, die sich positiv auf das Lesekompetenzniveau der Schülerinnen und Schüler auswirken und auf die sie – anders als bei diesen mittlerweile gut belegten Faktoren – selbst Einfluss nehmen können? Das Leseverhalten Jugendlicher stellt hierfür einen naheliegenden Ansatzpunkt dar. Somit wurden die Schülerinnen und Schüler während der ÉpStan 2016 nicht nur zu ihrem familiären, schulischen und persönlichen Hintergrund befragt, sondern erstmals auch zu ihrem außerschulischen Leseverhalten. Hierbei wurde erfasst, wie häufig sie in ihrer Freizeit Texte unterschiedlicher Art (z. B. Erzählungen, Sachtexte, Zeitungsartikel, Foreneinträge oder Emails) lesen, und in welchen Sprachen sie dies tun. Mittels verschiedener Regressionsanalysen wurde der familiäre Hintergrund der Jugendlichen, ihr Leseverhalten, sowie ihr Lesekompetenzniveau im Deutschen und Französischen zueinander in Bezug gesetzt. Die aus diesen Analysen hervorgehenden Ergebnisse belegen eindrücklich, dass neben dem familiären Hintergrund auch die Lesehäufigkeit und die Sprache, in der die Schülerinnen und Schüler üblicherweise lesen, von Bedeutung für das erreichte Lesekompetenzniveau sind. Darüber hinaus haben insbesondere die Textsorten, mit denen sich die Jugendlichen in ihrer Freizeit auseinandersetzen, entscheidenden Einfluss auf ihre Deutsch- und ihre Französisch-Lesekompetenz. Insbesondere die Häufigkeit, mit der Jugendliche angeben, narrative Texte (wie Geschichten, Romane oder Erzählungen) zu lesen, steht deutlich in positivem Zusammenhang mit ihrer Lesekompetenz in beiden Sprachen. Der Vortrag schließt mit einer Diskussion bezüglich der außerordentlich hohen Attraktivität von digitalen Textsorten bei Kindern und Jugendlichen, und den Möglichkeiten, diese Vielfalt an primär kommunikativ bzw. interaktiv ausgerichteten Lesematerialien als lebensnahe, pädagogische „Sprungbretter“ zu nutzen, mit deren Hilfe zukünftige Leserinnen und Leser an zunehmend komplexere Texte herangeführt werden könnten. [less ▲]

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See detailDoes Born-Digital Heritage turn Historians into Digital Historians?
Schafer, Valerie UL

Scientific Conference (2018, October 10)

On three levels within digital history - the use of (1) digital sources, (2) digital tools (3) digital narratives, this presentation aims to demonstrate how the practice of born-digital heritage opens new ... [more ▼]

On three levels within digital history - the use of (1) digital sources, (2) digital tools (3) digital narratives, this presentation aims to demonstrate how the practice of born-digital heritage opens new possibilities but also issues for historians. [less ▲]

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See detailStatic load deflection experiment on a beam for damage detection using the Deformation Area Difference Method
Erdenebat, Dolgion UL; Waldmann, Danièle UL; Teferle, Felix Norman UL

Scientific Conference (2018, October)

A reliable and safety infrastructure for both transport and traffic is becoming increasingly important today. The condition assessment of bridges remains difficult and new methods must be found to provide ... [more ▼]

A reliable and safety infrastructure for both transport and traffic is becoming increasingly important today. The condition assessment of bridges remains difficult and new methods must be found to provide reliable information. A meaningful in-situ assessment of bridges requires very detailed investigations which cannot be guaranteed by commonly used methods. It is known that the structural response to external loading is influenced by local damages. However, the detection of local damage depends on many factors such as environmental effects (e.g. temperature), construction layer (e.g. asphalt) and accuracy of the structural response measurement. Within the paper, a new so-called Deformation Area Difference (DAD) Method is presented. The DAD method is based on a load deflection experiment and does not require a reference measurement of initial condition. Therefore, the DAD method can be applied on existing bridges. Moreover, the DAD method uses the most modern technologies such as high precision measurement techniques and attempts to combine digital photogrammetry with drone applications. The DAD method uses information given in the curvature course from a theoretical model of the structure and compares it to real measurements. The paper shows results from a laboratory load-deflection experiment with a steel beam which has been gradually damaged at distinct positions. The load size is chosen so that the maximum deflection does not exceed the serviceability limit state. With the data obtained by the laboratory experiment, the damage degree, which can still be detected by the DAD method, is described. Furthermore, the influence of measurement accuracy on damage detection is discussed. [less ▲]

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See detailDie Erfindung der Grenze. Zur Konstruktion von Herrschaftsgebieten auf Regionalkarten des 16. Jahrhunderts im Westen des Reiches.
Uhrmacher, Martin UL

Scientific Conference (2018, September 28)

Im Spätmittelalter war das Reich durch Prozesse der Territorialisierung geprägt. Vor allem in den größeren Landesherrschaften wurde versucht, der Zersplitterung von Rechten und Besitzungen ... [more ▼]

Im Spätmittelalter war das Reich durch Prozesse der Territorialisierung geprägt. Vor allem in den größeren Landesherrschaften wurde versucht, der Zersplitterung von Rechten und Besitzungen entgegenzuwirken und Herrschaft zu verdichten. Im Westen des Reiches blieb man jedoch auf dem Weg zum Territorialstaat zumeist noch weit von einer flächigen Durchsetzung von Herrschaft entfernt. Die territorialen Verhältnisse lassen sich häufig als Gemengelage aus sich überlagernden Herrschaftsrechten, Hochgerichtsbezirken, Gemeinherrschaften, umstrittenen Gebieten oder anderen Abhängigkeiten beschreiben. Eine kartographische Erfassung dieser komplexen und mehrdimensionalen räumlichen Strukturen war mit den Mitteln der damaligen Zeit nicht möglich. Der Aufschwung einer zunehmend wissenschaftlich geprägten Kartographie ab der Mitte des 15. Jahrhunderts erlaubte es den Landesherren, kartographischer Darstellungen als Instrumente von Macht und Herrschaft zu nutzen: einerseits als Grundlage für die politische und wirtschaftliche Entwicklung des Territoriums, andererseits als Medium zur Verbreitung territorialer Ansprüche und zur Inszenierung von Herrschaft. Aus diesem Grund wurden einige der bekanntesten zeitgenössischen Kartographen mit der räumlichen Darstellung einzelner Fürstentümer beauftragt, bspw. Martin Waldseemüller durch Herzog René II. von Lothringen. Diese Aufgaben stellten die Kartographen vor große Probleme, denn noch gab es keine geeigneten Mittel, mit denen die politischen und territorialen Verhältnisse im Kartenbild auch nur annähernd widergegeben werden konnten. Eine Analyse ausgewählter Karten zeigt, welche verschiedenen Strategien angewandt wurden, um den fragmentarischen Besitz der Auftraggeber in seiner Gesamtheit als geschlossenes Herrschaftsgebiet erst zu konstruieren. Diese Experimentierphase endete Mitte des 16. Jahrhunderts mit der Etablierung von Grenzen in Form von Linien als allgemein gültiger Konvention, obwohl Territorialgrenzen im Sinne einer umfassenden Scheidelinie zwischen zwei Territorien in dieser Zeit nicht existierten. Der Vortrag widmet sich einer Fragestellung, die in Folge des spatial turn zwar wieder verstärkt in den geschichtswissenschaftlichen Fokus gelangte, aber in vieler Hinsicht noch nicht gründlich genug aufgearbeitet ist. Es gilt, historische Karten als vielschichtige, Schrift und Bild vereinende Wissensträger verstärkt auf Ihre Funktion bei der Ausbildung von politischen Räumen und Einheiten in den Blick zu nehmen. Denn sie müssen stets als bewusste Konstruktionen und keinesfalls als Versuch eines - gemessen an den jeweiligen technischen Möglichkeiten - quasi photographischen Abbildes der Realität verstanden und interpretiert werden. Die mit den Karten vermittelten und durch deren Druck auch weit verbreiteten Inszenierungen von geschlossenen Territorialstaaten erwiesen sich zudem als sehr wirkmächtig und prägend, teilweise bis zum Ende des Alten Reiches. Den zugrundeliegenden Strukturen und Prozessen wird im Rahmen des Vortrags besondere Aufmerksamkeit geschenkt. [less ▲]

Detailed reference viewed: 11 (4 UL)
See detailDie Zeit der Pfandherrschaften (1388-1437). Luxemburg unter fremder Herrschaft?
Dönges, Christa Annette UL

Scientific Conference (2018, September 28)

Detailed reference viewed: 26 (1 UL)
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See detailMultilingualism in forced migration research: insights from an ethnographic study in Luxembourg
Kalocsanyiova, Erika UL

Scientific Conference (2018, September 27)

This paper outlines some methodological considerations for researching integration trajectories in multilingual societies. It draws on a linguistic ethnographic study undertaken in Luxembourg. It ... [more ▼]

This paper outlines some methodological considerations for researching integration trajectories in multilingual societies. It draws on a linguistic ethnographic study undertaken in Luxembourg. It discusses ways of accommodating the participants’ (and my own) multilingual but distinct language competences. I reflect upon how my positionality as a multilingual researcher became part of the research process, shaping both the research design and the relationships I had with the informants. Multilingual research practices can play a fundamental role in empowering participants and privileging their voices in migration-related studies. This paper outlines some of the benefits/complexities that can arise if both participants and researchers draw on their old and newly acquired language resources. In this connection, I will argue that narrative analysis allows a refined understanding of foreign- and cross-language exchanges, which in turn helps to uncover the many ways in which linguistic integration can be understood, practiced and experienced. Narratives also proved to be an excellent tool for exploring multiple and shifting ideological stances in (meta)discourses surrounding language, identity and societal participation in the context of this research. [less ▲]

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See detailSOFTENING AND MELTING MODELING OF IRON ORE PARTICLES USING A CFD-DEM COUPLING METHOD
Baniasadi, Mehdi UL; Peters, Bernhard UL

Scientific Conference (2018, September 25)

The 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 ... [more ▼]

The 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. These phenomena have 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) as an advanced numerical tool based on the discrete-continuous framework, is used. Within this model, 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. The particle’s deformation, temperature, melting, and shrinking along with the saturation of molten iron and slag are examined using the XDEM method. [less ▲]

Detailed reference viewed: 10 (0 UL)
See detailA digital and interactive historical atlas of the city of Luxembourg.
Uhrmacher, Martin UL

Scientific Conference (2018, September 20)

Detailed reference viewed: 9 (1 UL)
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See detailThe Impact of Feedback Trading on Option Prices
Lehnert, Thorsten UL

Scientific Conference (2018, September 20)

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See detailIntergenerationelle Solidarität im Kontext von Migration: Gegenseitige Erwartungen, familienbezogene Werthaltungen und filiale Angst in portugiesischen und luxemburgischen Familien
Albert, Isabelle UL; Barros Coimbra, Stephanie UL

Scientific Conference (2018, September 20)

Vor dem Hintergrund einer sich am Übergang zum Rentenalter befindlichen ersten Generation von Migranten gewinnen Fragen zur intergenerationellen Solidarität in Familien mit Migrationshintergrund zunehmend ... [more ▼]

Vor dem Hintergrund einer sich am Übergang zum Rentenalter befindlichen ersten Generation von Migranten gewinnen Fragen zur intergenerationellen Solidarität in Familien mit Migrationshintergrund zunehmend an Bedeutung. Ein Verbleiben im Aufnahmeland könnte im Einklang mit kulturspezifischen Werthaltungen mit besonderen Erwartungen an die erwachsenen Kinder einhergehen. Die vorliegende Studie befasst sich ausgehend von Bengtson’s Solidaritätsmodell mit der Frage, wie sich die intergenerationelle Solidarität im Migrationskontext ausgestaltet, insbesondere welche gegenseitigen Erwartungen Eltern und erwachsene Kinder haben und wie der gegenseitige Austausch reguliert wird. Im Rahmen der vom FNR geförderten IRMA-Studie wurden mittels eines standardisierten Fragebogens Daten zur Familienkohäsion, zu gegenseitigen Erwartungen bezüglich Unterstützung und familienbezogenen Werthaltungen sowie zur filialen Angst und zum subjektiven Wohlbefinden an n = 67 in Luxemburg lebenden portugiesischen sowie n = 87 luxemburgischen Familien (Vater, Mutter und jeweils ein erwachsenes Kind) erhoben. Während luxemburgische und portugiesische Familien eine ähnlich hohe Familienkohäsion aufwiesen, zeigten sich Unterschiede in der Ausgestaltung des gegenseitigen Austauschs. Portugiesische Teilnehmer berichteten höhere Erwartungen bezüglich Kontakthäufigkeit und Unterstützung, wohingegen der Zusammenhalt luxemburgischer Familien eher durch eine generelle Verfügbarkeit bei Bedarf gekennzeichnet war. Es zeigte sich kein Mittelwertsunterschied der portugiesischen und luxemburgischen erwachsenen Kinder bezüglich filialer Angst. Während allerdings ein starker wahrgenommener Familienzusammenhalt mit geringerer filialer Angst in beiden Gruppen einherging, war ein stärkeres Bedürfnis nach Unabhängigkeit aber insbesondere bei den portugiesischen Kindern mit höherer filialer Angst verbunden. Die Ergebnisse werden unter Berücksichtigung intrafamilialer Prozesse der Beziehungsregulation im Rahmen eines integrativen Modells von Familienbeziehungen im Kontext von Altern und Migration diskutiert. [less ▲]

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See detailTell Your Town – Sprache lernen, Integration fördern, Städte erkunden und entdecken
Reuter, Bob UL; Haberkorn, Marcus

Scientific Conference (2018, September 20)

Wie können ansässige und neu zugezogene Schülerinnen und Schülern in Rheinland-Pfalz und Luxemburg besser in ihren Regionen integriert werden, dabei ihre sprachlichen Fähigkeiten entwickeln und die ... [more ▼]

Wie können ansässige und neu zugezogene Schülerinnen und Schülern in Rheinland-Pfalz und Luxemburg besser in ihren Regionen integriert werden, dabei ihre sprachlichen Fähigkeiten entwickeln und die erforderliche Medienkompetenz erlernen? Diesen Fragen hat sich ein grenzüberschreitendes bilaterales Entwicklungs- und Forschungsprojekt gewidmet, wobei ein „Partizipativer Design“ Ansatz (Danielsson & Wiberg, 2006) angewandt wurde. Unter der Leitung eines Teams der Hochschule Trier wurde in Zusammenarbeit mit SchülerInnen und LehrerInnen der Escher Brill Schule und der Trierer Kurfürst-Balduin-Realschule sowie einem Team der Universität Luxemburg, während des Schuljahres 2016/2017, die mobile App „Tell Your Town" entwickelt. Ziel war es erfundene Geschichten an echten Schauplätzen in Trier und Esch auf Deutsch, Französisch, Englisch und Luxemburgisch in spielerischer Form zu erzählen. Die Geschichten, Schauplätze und Routen wurden in Design Workshops partizipativ erarbeitet. Ein Team an der Hochschule Trier setzte die App anschließend um und ein Team der Universität Luxemburg dokumentierte, analysierte und evaluierte die Benutzung der App durch die SchülerInnen in Feldversuchen in Trier und in Esch, mit Hilfe teilnehmender Beobachtungen, Videographie und Befragungen von SchülerInnen und LehrerInnen, um technische und pädagogische Rückmeldungen an die EntwicklerInnen und LehrerInnen zu geben. Bei diesem Projekt ist eine frei verfügbare App entstanden, welche die Benutzer dazu einlädt eine der beiden Städte „per pedes“ zu entdecken und dabei noch so einiges über die Geschichte der Stadt zu erfahren, was ihnen durch einen fiktionalen Reiseführer in interaktiven Dialogen vermittelt wird. Dabei wird die Geolokalisierungsfunktion des Smartphones genutzt um den Benutzer zu bedeutsamen Sehenswürdigkeiten zu führen, wo dann interaktive Minispiele oder Dialoge mit dem fiktionalen Reiseführer erfolgen. In der Route Esch steht die Geschichte des Luxemburgischen Bergbaus und den dortigen Minenarbeitern im Mittelpunkt. Die Route Trier handelt von einem Wettlauf zwischen Karl Marx und Nero. In diesem wird der Spieler von Karl Marx begleitet und lernt so bekannte Orte aus Trier kennen. Mit Hilfe der Feldversuche wurde sichtbar, dass die App großes Potential hat, um eine relativ autonome Erkundung der Städte zu initiieren und es auch den einheimischen SchülerInnen erlaubt, ihre Stadt mit neuen Augen bewusster wahrzunehmen. [less ▲]

Detailed reference viewed: 27 (1 UL)
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See detailSymposium "Positive Psychologie III: Soziale Beziehungen"
Baudson, Tanja UL; Brohm-Badry, Michaela

Scientific Conference (2018, September 19)

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See detailUsing Log-File Data to Uncover Strategy Use in Complex Problem Solving
Nicolay, Björn Fabrice UL; Krieger, Florian UL; Lagou, Charalampia UL et al

Scientific Conference (2018, September 18)

The aim of the current project is to utilize log-file data to enhance the understanding of strategy use in Complex Problem Solving (CPS). CPS can be defined as the ability to manipulate the existing ... [more ▼]

The aim of the current project is to utilize log-file data to enhance the understanding of strategy use in Complex Problem Solving (CPS). CPS can be defined as the ability to manipulate the existing variables of a particular novel, complex, intransparent, and dynamic environment successfully in order to reach a predefined goal. In order to successfully solve a CPS task, the goal-directed application and variation of certain strategies is necessary. To uncover the systematic use of these strategies, log-files have been deemed a fruitful resource as they contain not only the final results of a computer-based CPS item, but also the individual steps undertaken while solving such a task. Recent studies using log-files have highlighted the importance of some strategies for CPS, like the varying one variable at a time (VOTAT) strategy, or of engaging in noninterfering observations (i.e., idle rounds). In addition, other strategies have also been shown to be relevant in neighboring fields of CPS. However, comprehensive studies investigating a broad repertoire of strategies applied in CPS are scarce. Hence, on the basis of existing large-scale assessment data sets, the present project set out to investigate which strategies hidden in log-files are relevant for solving a CPS task in order to gain a more thorough understanding of how CPS tasks are being approached. Preliminary findings indicate that, in addition to VOTAT and idle rounds, particularly the flexibility of switching between strategies should be taken into account. [less ▲]

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See detailTeachers´ attitudes towards inclusion: Effects of a training module
Pit-Ten Cate, Ineke UL; Krischler, Mireille Gilberte Pauline UL

Scientific Conference (2018, September 17)

The success of implementing inclusive practice depends on teachers´ competence as well as their attitudes. Attitudes are defined as psychological tendencies expressed by evaluating a particular entity ... [more ▼]

The success of implementing inclusive practice depends on teachers´ competence as well as their attitudes. Attitudes are defined as psychological tendencies expressed by evaluating a particular entity with some degree of favor or disfavor. Research has provided mixed results concerning teachers´ attitudes toward students with SEN and inclusive practice, whereby teachers generally have more positive attitudes toward the inclusion of students with mild SEN than toward students with complex needs. Training, especially modules focusing on the cognitive processes underlying judgment, can facilitate positive change in attitudes toward inclusion of students with SEN. In a pre–post-test design, data were collected for a sample of 33 experienced primary school teachers attending a course (2x4hr) on inclusion with a focus on the role of attitudes in decision-making and behavior. We assessed general attitudes toward the inclusion of students with SEN as well as teachers´ emotional reactions, stereotypes and behavioural intentions. Results of a repeated measures ANOVA, with time (pre vs. post) and general attitude toward inclusion (4 subscales) as within group factors only showed a main effect for attitudes, reflecting variations between the subscale scores. The training course did not result in changes in general attitudes. Further analyses revealed a positive pre-post course change in teachers´ emotional reactions concerning the inclusion of a student with SEN in their class. Teachers´ stereotype ratings indicated they perceived students with learning difficulties as less competent but warm, whereas students with challenging behavior were perceived as relatively competent but average in warmth. Finally, teachers´ behavioral intentions shifted from focusing on finding solutions within the classroom to more cooperation with colleagues, parents and experts to provide the best support for the student with SEN. In sum, the training course impacted both the affective and conative components of attitudes, whereas general attitudes toward inclusion remained unchanged. [less ▲]

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See detailChanges in preservice teachers´ attitudes toward inclusion: the role of competence
Pit-Ten Cate, Ineke UL; Krischler, Mireille Gilberte Pauline UL

Scientific Conference (2018, September 13)

Following policies to promote a more equitable and inclusive educational system, the question arises how to prepare teachers to accommodate an increasingly heterogeneous student population. As teachers´ ... [more ▼]

Following policies to promote a more equitable and inclusive educational system, the question arises how to prepare teachers to accommodate an increasingly heterogeneous student population. As teachers´ competence concerning inclusion is grounded in their training (e.g. Baker-Ericzen et al. 2009), courses focussing on inclusion as an educational practice could reduce uncertainties (e.g. Carroll et al. 2003). However, inclusion not only depends on teachers´ competence but also on their attitudes. Teachers’ attitudes may be pivotal for the success of inclusive education as they can elicit differential expectations and behaviors, which can enhance or limit the successful inclusion of students with special educational needs (SEN). Avramidis and Norwich (2002) stressed the importance of training in the formation of positive attitudes toward the integration of students with SEN. Although several studies have reported positive changes in attitudes following a course on inclusive education (e.g. Shade & Stewart, 2001), the relationship between competence and attitudes is less clear. Therefore, this study aimed to evaluate the effect of a course on inclusive pedagogy on competence and attitudes and the association between these constructs. Data were collected for 69 preservice teachers enrolled in a course on inclusive pedagogy. Attitudes toward the inclusion of students with SEN were assessed before and after the course, using the German version of The Opinions Relative to Integration of Students with Disabilities questionnaire (ORI; Benoit & Bless, 2014). In addition, at the end of the course students indicated to what extend the course had helped them to gain knowledge, skills and strategies concerning teaching a heterogeneous student population. Results of a repeated measures 2×4 ANOVA, with time (pre vs. post) and attitude towards inclusion (ORI subscales) as within group factors showed a main effect for attitudes, reflecting variations between the subscale scores. A significant time × attitudes interaction effect indicated positive attitude changes over time, but only in the domain of educational and social progression of students with SEN. Results of a regression analysis indicated that, after controlling for pre-course attitude ratings, perceived competence predicted attitude ratings at the end of the course. This study shows that teacher training can positively affect both teachers´ competence and attitudes concerning inclusive education, whereby perceived competence contributed to positive attitude change. [less ▲]

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See detail(Re)writing gender - gender constructions in autobiographies written by trans people
Artuso, Sandy Kathy UL

Scientific Conference (2018, September 13)

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See detailA Bilingual Study for Personalized Sentiment Model PERSEUS
Guo, Siwen UL; Schommer, Christoph UL

Scientific Conference (2018, September 10)

This paper investigates the significance of analyzing language preferences in personalized sentiment analysis. Motivated by the considerable amount of text generated by multilingual speakers on social ... [more ▼]

This paper investigates the significance of analyzing language preferences in personalized sentiment analysis. Motivated by the considerable amount of text generated by multilingual speakers on social platforms, we focus on constructing a single model that is able to analyze sentiments in a multilingual environment. In particular, Twitter texts are used in this research where the choice of language can be switched at a message-, sentence-, word- or topic-level. To represent and analyze the text, we extract concepts and main topics from the text and apply a recurrent neural network with attention mechanism in order to learn the relation between the lexical choices and the opinions of each sentiment holder. The personalized sentiment model PERSEUS is applied as the central structure of this research. Moreover, a language index is added to each concept to enable multilingual analysis, which provides a solution for analyzing code-switching in the text as well. In this work, English and German are chosen for a pilot study, and an artificial corpus is created to evaluate the situation with multilingual speakers. [less ▲]

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See detailWhat you give you get, or not? The effects of intergenerational family solidarity on subjective well-being
Albert, Isabelle UL; Barros Coimbra, Stephanie UL

Scientific Conference (2018, September 06)

Much attention has been focused on intergenerational relations and family cultures as these developments are, amongst others, related to important socio-demographic changes creating a new reality for ... [more ▼]

Much attention has been focused on intergenerational relations and family cultures as these developments are, amongst others, related to important socio-demographic changes creating a new reality for families in Europe. Thus, solidarity and mutual support between adult children and their older parents are of particular interest as the exchange and “amount” of mutual support between both generations might gain importance for the well-being of each family member. Additionally, the specific context of migration can arouse special needs in terms of intergenerational support. The current study presents a cross-cultural comparison between Luxembourgish native and Portuguese migrant families, all living in Luxembourg. Quantitative data (n = 118 family triads) gathered by means of standardised questionnaires as well as qualitative data (n = 20 family dyads) collected with face-to-face interviews underlie the discussed results. Regardless of the culture, quantitative results show a higher provided social support from parents to children than the received one. However, PT children reported receiving as much as providing social support to their parents, while LU children reported receiving more support than the one they give. Further analyses will be carried out in order to differentiate between different kinds of support (financial, instrumental and emotional) making use of quantitative as well as qualitative data. Implications regarding family solidarity will be discussed in order to highlight similarities and differences between and within cultures and family generations. [less ▲]

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See detail(In)flexible Language Use in a Year 4 Class in Luxembourg: Which Languages in Which Subjects?
Kirsch, Claudine UL; Degano, Sarah UL

Scientific Conference (2018, September 06)

The project described in this paper is part of the broader research project ‘Capitalizing on Linguistic Diversity in Education’ that investigates how multilingualism can be used as a resource for ... [more ▼]

The project described in this paper is part of the broader research project ‘Capitalizing on Linguistic Diversity in Education’ that investigates how multilingualism can be used as a resource for educational success and social well-being in Luxembourg. Research projects in preschool, Year 1 and Year 2 classes show that teachers have begun to draw on children’s semiotic repertoires (Kirsch 2017, Kirsch and Bes 2017). The present doctoral research project aims to understand the ways in which and the extent to which, first, Year 4 and Year 5 teachers in three schools address linguistic diversity and, second, children draw on their language repertoire to learn. The focus lies on the translanguaging practices of teachers and children. Translanguaging is a pillar of multilingual pedagogies which promote social equity and build on socio-constructivist learning theories (García & Li Wei 2014). The education system in Luxembourg is trilingual in Luxembourgish, German and French. The curriculum is based on monoglossic ideologies and a compartmentalised view of language teaching (De Korne 2012). The system is particularly challenging for the 63.5 percent of primary school children who do not speak Luxembourgish as a first language and underachieve compared to the Luxembourgish-speakers (Menje 2017). This paper draws its data from six days of observations and video-recordings of learning activities in seven French, eight Mathematics and two Arts lessons from September 2017 to January 2018 in one school characterised by the diversity of its intake and the high SES of the families. The data collection is still on-going. The participants are the two teachers of the Year 4 class and three focus children of Slovenian, French and Icelandic background. The thematic analysis focuses on the type of learning activities, the school subjects, the speech acts, the language use, and the pedagogical use of translanguaging. The preliminary findings show that almost all learning activities are teacher-led and that interactions are based on initiation-response-feedback sequences. The teachers systematically translanguage between a target language and the other curricula languages to scaffold learning, build relationships and manage the classroom. Both teachers and children create a specific space for German which is highly unusual in Luxembourg. The children rarely draw on their home languages unless these are the three languages of the country. While translanguaging is frequently used as a scaffold, it is neither transformative nor does it contribute to raising equal opportunities (García & Kleyn 2016). [less ▲]

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See detailSocial participation and peer relationships of students with special educational needs
Pit-Ten Cate, Ineke UL

Scientific Conference (2018, September 06)

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See detailFamily, migration, and intergenerational solidarity
Albert, Isabelle UL

Scientific Conference (2018, September 06)

Migration and cultural diversity are key issues for many European countries today, and family relations are becoming increasingly important in this context. Intergenerational solidarity can have different ... [more ▼]

Migration and cultural diversity are key issues for many European countries today, and family relations are becoming increasingly important in this context. Intergenerational solidarity can have different forms and may differ across as well as within cultures. In fact, different patterns of support have been found comparing migrant with non-migrant families. In general, parents represent an important resource of support even for adult children; the other way round, offspring in migrant families have been found to provide substantial practical support for their parents such as help with administrative tasks or translations already at younger ages, and family support can become more important with increasing age when older migrants need help or care. Families migrating from more collectivist, family-oriented to more individualistic cultural contexts might find it difficult to adapt to prevalent values and practices regarding intergenerational support in the receiving society, and adult children might experience strain and difficulties in meeting their parents’ expectations. Further, the question of how families arrange intergenerational solidarity in the light of multilocality becomes pertinent as migrants are confronted with the task to regulate their relations with family members who stay in their countries of origin. The present symposium deals with these questions by use of both quantitative and qualitative methods, bringing together researchers from four European countries (Switzerland, Germany, Luxembourg, and Portugal) which are characterized by high numbers of immigrants resp. emigrants. First, Bettina Isengard, Ronny König and Marc Szydlik explore patterns of intergenerational family solidarity all over Europe, concentrating on differences between migrant and non-migrant families as well as geographical distance between family members. Second, Heike Buhl, Sabrina Sommer and Christian Hoellger have a closer look at felt obligations to support parents in a sample from Germany, thereby examining in how far migrants and non-migrants differ with regard to their adherence to family values and how these are related to other aspects of intergenerational solidarity. Stephanie Barros and Isabelle Albert focus then on intergenerational support exchange in Portuguese migrant compared to Luxembourgish families with young adult children. Finally, Carlos Barros, Luana Cunha Ferreira and Carla Crespo analyse the relationship between emigrated family members and those who stay in the country of origin, namely Portugal, focusing in particular on aspects of intergenerational support to foster well-being and cohesion. The contributions will be discussed by Elke Murdock taking into account aspects of multicultural identity and integration and their roles for the regulation of family relations. [less ▲]

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See detailInclusive multilingual pedagogies in a preschool in Luxembourg
Mortini, Simone UL

Scientific Conference (2018, September 04)

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See detailOn the impact of tokenizer and parameters on N-gram based Code Analysis
Jimenez, Matthieu UL; Cordy, Maxime UL; Le Traon, Yves UL et al

Scientific Conference (2018, September)

Recent research shows that language models, such as n-gram models, are useful at a wide variety of software engineering tasks, e.g., code completion, bug identification, code summarisation, etc. However ... [more ▼]

Recent research shows that language models, such as n-gram models, are useful at a wide variety of software engineering tasks, e.g., code completion, bug identification, code summarisation, etc. However, such models require the appropriate set of numerous parameters. Moreover, the different ways one can read code essentially yield different models (based on the different sequences of tokens). In this paper, we focus on n- gram models and evaluate how the use of tokenizers, smoothing, unknown threshold and n values impact the predicting ability of these models. Thus, we compare the use of multiple tokenizers and sets of different parameters (smoothing, unknown threshold and n values) with the aim of identifying the most appropriate combinations. Our results show that the Modified Kneser-Ney smoothing technique performs best, while n values are depended on the choice of the tokenizer, with values 4 or 5 offering a good trade-off between entropy and computation time. Interestingly, we find that tokenizers treating the code as simple text are the most robust ones. Finally, we demonstrate that the differences between the tokenizers are of practical importance and have the potential of changing the conclusions of a given experiment. [less ▲]

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See detailAn equation-free, nested, concurrent multiscale approach without scale-separation
Beex, Lars UL; Kerfriden, Pierre

Scientific Conference (2018, September)

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See detailA Closer Look at Real-World Patches
Liu, Kui UL; Kim, Dongsun UL; Koyuncu, Anil UL et al

Scientific Conference (2018, September)

Bug fixing is a time-consuming and tedious task. To reduce the manual efforts in bug fixing, researchers have presented automated approaches to software repair. Unfortunately, recent studies have shown ... [more ▼]

Bug fixing is a time-consuming and tedious task. To reduce the manual efforts in bug fixing, researchers have presented automated approaches to software repair. Unfortunately, recent studies have shown that the state-of-the-art techniques in automated repair tend to generate patches only for a small number of bugs even with quality issues (e.g., incorrect behavior and nonsensical changes). To improve automated program repair (APR) techniques, the community should deepen its knowledge on repair actions from real-world patches since most of the techniques rely on patches written by human developers. Previous investigations on real-world patches are limited to statement level that is not sufficiently fine-grained to build this knowledge. In this work, we contribute to building this knowledge via a systematic and fine-grained study of 16,450 bug fix commits from seven Java open-source projects. We find that there are opportunities for APR techniques to improve their effectiveness by looking at code elements that have not yet been investigated. We also discuss nine insights into tuning automated repair tools. For example, a small number of statement and expression types are recurrently impacted by real-world patches, and expression-level granularity could reduce search space of finding fix ingredients, where previous studies never explored. [less ▲]

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See detailDie Vorhersage von Selbstkontrolle durch Need for Cognition. Generalisierbarkeit und Erklärungsansätze
Grass, Julia; Krieger, Florian UL; Paulus, P. et al

Scientific Conference (2018, September)

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See detailRisk disclosure and analyst following: a study of French listed firms
Derouiche, Imen UL; Muessig, Anke UL; Weber, Véronique UL

Scientific Conference (2018, September)

In this study, we analyse the association between risk disclosure and analyst following for a sample of non-financial French listed firms from 2007 to 2015. We identify the number of sentences, the risk ... [more ▼]

In this study, we analyse the association between risk disclosure and analyst following for a sample of non-financial French listed firms from 2007 to 2015. We identify the number of sentences, the risk words, the risk related sentences, and the risk factors as risk disclosure quantity. Company-specific risk factors, industry-specific risk factors, numeric intensity, the degree of similarity, and the degree of boilerplate measure risk disclosure quality. On the aggregated level, the quantity of risk information provided is not significantly associated with analyst following. For the quality, results show that the quality of risk disclosure is an important determinant of analysts’ decision to follow a firm. The higher the quality, expressed as less similar language and more revised information, the more likely it is that analysts follow the firm. From a theoretical perspective, this suggests that analysts are information intermediaries and not information providers. On the non-aggregated level, for the individual quantity measures, the results are ambiguous. For the individual quality measures, results on the aggregated level are confirmed. [less ▲]

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See detailInformation Content of Systematic Risk Disclosure
Weber, Véronique UL; Muessig, Anke UL

Scientific Conference (2018, September)

We analyse the relation between systematic risk disclosure, which is the description of a company’s exposure to systematic risk factors and its influence on investors’ risk perception for a sample of UK ... [more ▼]

We analyse the relation between systematic risk disclosure, which is the description of a company’s exposure to systematic risk factors and its influence on investors’ risk perception for a sample of UK listed firms from 2017 to 2015. Our results show that investors react to the systematic component of risk exposure description in the annual report; the information is incorporate into the capital market. For annual reports of financial years ending in 2013 or after, the relation between systematic risk disclosure and investors’ risk perception is negative compared to a positive relation for the annual reports ending before 2013. The mandatory strategic report introduced in 2013, in which firms are required to describe their risk exposure, seems to foster more timely description of risks and uncertainties. Therefore, firms tend to solely update the risk information in their annual reports in subsequent years and thus they resolve known risk factors rather than introducing new ones. [less ▲]

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See detailProblem solving and its role in large-scale assessments. Transversal skills in educational research
Greiff, Samuel UL

Scientific Conference (2018, September)

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See detailCategories of coalgebras for modal extensions of Łukasiewicz logic
Teheux, Bruno UL; Kurz, Alexander

Scientific Conference (2018, August 27)

The category of complete and completely distributive Boolean algebras with complete operators is dual to the category of frames. We lift this duality to the category of complete and completely ... [more ▼]

The category of complete and completely distributive Boolean algebras with complete operators is dual to the category of frames. We lift this duality to the category of complete and completely distributive MV-algebras with complete operators. [less ▲]

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See detailWhen the exception becomes the rule … When the margins become the center …
Schafer, Valerie UL

Scientific Conference (2018, August 23)

This contribution invited participants of the Summer school to critically reflect upon centers and peripheries in Internet history, not only from a geographical perspective , but also from a narrative ... [more ▼]

This contribution invited participants of the Summer school to critically reflect upon centers and peripheries in Internet history, not only from a geographical perspective , but also from a narrative standpoint [less ▲]

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See detailFrom the Dustbin of History: Rethinking the History of Amateur Media in a Historical Conversation
Aasman, Susan; van der Heijden, Tim UL; Slootweg, Tom

Scientific Conference (2018, August 23)

“Amateurs of one era are not the amateurs of another, even when a continuous tradition exists to connect them”, is an intriguing statement made by Lisa Gitelman (2014). Overall, Gitelman’s answer would ... [more ▼]

“Amateurs of one era are not the amateurs of another, even when a continuous tradition exists to connect them”, is an intriguing statement made by Lisa Gitelman (2014). Overall, Gitelman’s answer would favor a certain level of complexity as to avoid ‘sloppy media history’ even when a continuous tradition exists to connect them (137). Rather, we should explore how amateur filmmakers ‘doing and its do-ability’ can differ as they are situated in broader historical contexts. Building on this idea of a complex and dynamic history, that consists of a diversity of histories, we propose to start a semi-structured conversation between three experts in amateur media and between the experts and the audience. We seek to follow traces that connect or disconnect the various discourses and practices in amateur media history in which amateurism encountered predictions, hopes, and tried out appropriations of amateur media technologies as an alternative/marginal media space. The set of related concepts that will be deployed through time and in relation to different historical contexts are: marginality, democratization, resistance, alternative, avant-garde, subversive and experimental. By comparing, contrasting and evaluating these set of concepts we hope to add to the overall goal of the conference to open up a space to rethink historiography. [less ▲]

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See detailTapping the Potential of Diverse Founding Teams for Firm Growth: The Role of New Venture Activities
Tryba, Anne UL; Patzelt, Holger; Breugst, Nicola

Scientific Conference (2018, August)

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See detailResource Allocation and Relay Selection for Multi-User OFDM-Based Cooperative Networks with SWIPT
Gautam, Sumit UL; Lagunas, Eva UL; Chatzinotas, Symeon UL et al

Scientific Conference (2018, August)

In this paper, we investigate resource allocation and relay selection in a two-hop relay-assisted multi-user network, where the end users support Simultaneous Wireless Information and Power Transfer ... [more ▼]

In this paper, we investigate resource allocation and relay selection in a two-hop relay-assisted multi-user network, where the end users support Simultaneous Wireless Information and Power Transfer (SWIPT). In particular, we consider single source assisted by a set of spatially distributed relays able to amplify-and-forward orthogonal frequency division multiplexing (OFDM) signals carrying both data and power at the same time. The users are assumed to implement a power splitting technique where the received signal is orthogonally split in two streams of different power levels, where one signal stream is sent to the power harvesting module while the other is converted to baseband for information decoding. We aim at optimizing the users’ power splitting ratios as well as the relay, carrier and power assignment so that the end-users’ sum-rate is maximized subject to transmitted and harvested power constraints. Such joint optimization is combinatorial in nature with a non-convex structure. Therefore, we present a sub-optimal low complex solution based on the harmonic mean of the two-hop relay channel coefficients. Simulation results reveal that the proposed algorithm provides significant performance gains in comparison with a semi-random resource allocation and relay selection approach. [less ▲]

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See detailFrom Epics to Novelization : Conceptualizing Science Education Curricula and Practices through a historical lens
Te Heesen, Kerstin UL; Siry, Christina UL; Schreiber, Catherina

Scientific Conference (2018, August)

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See detailUncertainty Quantification in Finite Element Models:Application to SoftTissue Biomechanics
Hauseux, Paul UL; Hale, Jack UL; Bulle, Raphaël UL et al

Scientific Conference (2018, July 23)

We present probabilistic approaches aiming at the selection of the best constitutive model and to identify their parameters from experimental data. These parameters are always associated with some degree ... [more ▼]

We present probabilistic approaches aiming at the selection of the best constitutive model and to identify their parameters from experimental data. These parameters are always associated with some degree of uncertainty. It is therefore important to study how this statistical uncertainty in parameters propagates to a safety-critical quantity of interest in the output of a model. Efficient Monte Carlo methods based on variance reduction techniques (Sensitivity Derivatives Monte Carlo methods [Hauseux et al. 2017] and MultiLevel Monte Carlo [Giles 2015] methods) are employed to propagate this uncertainty for both random variables and random fields. Inverse and forward problems are strongly connected. In a bayesian setting [Matthies et al. 2017], developing methods that reduce the number of evaluations of the forward model to an absolute minimum to achieve convergence is crucial for tractable computations. Numerical results in the context of soft tissue biomechanics are presented and discussed. [less ▲]

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See detailThe Challenge of Situating Sacred Wind Music on the Example of Laurent Menager (1835-1902)
Duhr, Marlène UL

Scientific Conference (2018, July 20)

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See detailGlobal inequalities 1980-2050: a microdata oriented simulation – Worldsim
Chauvel, Louis UL; Bar-Haim, Eyal UL; Hartung, Anne UL et al

Scientific Conference (2018, July 13)

Former global inequality models lack realistic features of the population (age, gender, education, behavior). Worldsim develops a panel sample based simulation of the world population until 2050, relying ... [more ▼]

Former global inequality models lack realistic features of the population (age, gender, education, behavior). Worldsim develops a panel sample based simulation of the world population until 2050, relying on UN, Cepii, etc, big data aggregated forecasts, that we individually disaggregate. The simulation confirms the decline of the world's Gini index, but underlines several paradoxes in the socioecodemography of the world, with increasing gaps between resources and needs. Compared to more standard socioeconomic simulations of inequalities, we provide more substantial characterization of the population, and compared to other global simulations, we capture the dimensions of social divergences between social groups and geographic regions. [less ▲]

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See detailHow working conditions influence work-related anger
Steffgen, Georges UL; Sischka, Philipp UL

Scientific Conference (2018, July 13)

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See detailPsychological contact violation or basic need frustration? Psychological mechanisms behind the effects of workplace bullying.
Sischka, Philipp UL; Steffgen, Georges UL

Scientific Conference (2018, July 12)

Workplace bullying is a serious phenomenon that has serious detrimental effects on victim’s health, attitudes, and work-related behavior. However, research that examines the mechanisms behind these ... [more ▼]

Workplace bullying is a serious phenomenon that has serious detrimental effects on victim’s health, attitudes, and work-related behavior. However, research that examines the mechanisms behind these relations is still sparse. Two theories that may explain the links between workplace bullying and various negative outcomes are social exchange theory and self-determination theory. Drawing on these theories, we hypothesized that the relationship between workplace bullying and various outcomes is mediated by perceptions of psychological contract violation and the frustration of basic psychological needs (i.e. autonomy, competence, relatedness). Therefore, the aim of our study was to test these mediators separately and simultaneously to see whether they have an incremental mediation effect between workplace bullying and well-being, work satisfaction, engagement, performance, burnout, workplace deviance and turnover intentions. An online survey design was employed and data were collected among U.S. employees. The final sample consists of 1,408 respondents (56.6% females, n=798, age: M=37.3, SD =10.4). Single mediation analysis within a structural equation modeling framework revealed that psychological contract violation acted as a mediator for all outcome variables. Furthermore, basic need frustrations were also meaningfully mediators between workplace bullying and all outcomes, but different need frustration were differently linked with them. The multiple mediation analyses mainly supported the hypothesized importance of the mediators for the different outcomes. The study findings advance the field through identifying the most important mediators between workplace bullying and several outcome variables guiding possible interventions. [less ▲]

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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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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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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 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 detailAssociative and quasitrivial operations on finite sets: characterizations and enumeration
Couceiro, Miguel; Devillet, Jimmy UL; Marichal, Jean-Luc UL

Scientific Conference (2018, July 02)

We investigate the class of binary associative and quasitrivial operations on a given finite set. Here the quasitriviality property (also known as conservativeness) means that the operation always outputs ... [more ▼]

We investigate the class of binary associative and quasitrivial operations on a given finite set. Here the quasitriviality property (also known as conservativeness) means that the operation always outputs one of its input values. We also examine the special situations where the operations are commutative and nondecreasing, in which cases the operations reduce to discrete uninorms (which are discrete fuzzy connectives playing an important role in fuzzy logic). Interestingly, associative and quasitrivial operations that are nondecreasing are characterized in terms of total and weak orderings through the so-called single-peakedness property introduced in social choice theory by Duncan Black. We also address and solve a number of enumeration issues: we count the number of binary associative and quasitrivial operations on a given finite set as well as the number of those operations that are commutative and/or nondecreasing. [less ▲]

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See detailOn associative, idempotent, symmetric, and nondecreasing operations
Devillet, Jimmy UL; Teheux, Bruno UL

Scientific Conference (2018, July 02)

see attached file

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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 detailBody Mass Index and Social Interactions from Adolescence to Adulthood
Joxhe, Majlinda UL; Corrado, Luisa; Distante, Roberta

Scientific Conference (2018, July)

This paper proposes a novel approach to address identi fication of social endogenous e ects by generalizing the methods commonly used in standard dynamic panel data analysis to the peer e ffects setting ... [more ▼]

This paper proposes a novel approach to address identi fication of social endogenous e ects by generalizing the methods commonly used in standard dynamic panel data analysis to the peer e ffects setting. Our methodology shows to can estimate peer e ects free of the \re "reflection problem" in a dynamic context where individual- and group-specifi c unobservable e ects are controlled for. We apply a dynamic linear-in-means model for analyzing the importance of social ties for the body-weight-related behavior of US youth. We show that the main drivers of body-weight-related behavior are habituation and imitation eff ects. For individuals who were normal-weight during adolescence habits seem to be slightly enforced by imitative behavior: in this instance, for an 1% increase in average BMI we expect about 0:6% increase in individual BMI, whereas the coe cient for past BMI is 0:4%. Imitation e ffects, instead, explain most of the variation in the Body Mass Index of individuals who were overweight and obese during adolescence, signaling the presence of a social multiplier e ffect: for these two groups an increase of 1% in average BMI leads, respectively, to an increase of 0:2% and 0:4% in current BMI. [less ▲]

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See detailTowards a multifaceted framework of complex problem solving
Stadler, Matthias UL; Niepel, Christoph UL; Greiff, Samuel UL

Scientific Conference (2018, July)

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See detailIntroducing MaFIN. A dynamic matrices finite state automata test
Kunze, Thiemo UL; Krieger, Florian UL; Stadler, Matthias UL et al

Scientific Conference (2018, July)

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See detailGenerating Multi-Categorical Samples with Generative Adversarial Networks
Camino, Ramiro Daniel UL; Hammerschmidt, Christian UL; State, Radu UL

Scientific Conference (2018, July)

We propose a method to train generative adversarial networks on mutivariate feature vectors representing multiple categorical values. In contrast to the continuous domain, where GAN-based methods have ... [more ▼]

We propose a method to train generative adversarial networks on mutivariate feature vectors representing multiple categorical values. In contrast to the continuous domain, where GAN-based methods have delivered considerable results, GANs struggle to perform equally well on discrete data. We propose and compare several architectures based on multiple (Gumbel) softmax output layers taking into account the structure of the data. We evaluate the performance of our architecture on datasets with different sparsity, number of features, ranges of categorical values, and dependencies among the features. Our proposed architecture and method outperforms existing models. [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 detailToward a new model of collaborative problem solving definition and assessment
Stoeffler, K.; Greiff, Samuel UL; Von Davier, A. et al

Scientific Conference (2018, July)

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See detailAccruals Quality, Financial Constraints and Corporate Cash Holdings
Derouiche, Imen UL; Mansali, Hatem; Jemai, Karima

Scientific Conference (2018, July)

This paper examines the impact of accruals quality on corporate cash holdings of a large sample of 6,501 observations of French firms listed in Euronext Paris over the period 2000-2015. The results show ... [more ▼]

This paper examines the impact of accruals quality on corporate cash holdings of a large sample of 6,501 observations of French firms listed in Euronext Paris over the period 2000-2015. The results show that cash holdings decrease with accruals quality, suggesting that firms tend to increase their cash reserves in the presence of information asymmetry driven, in particular, by low quality of accounting quality. Results also report that this negative effect is more pronounced in financially constrained firms than in financially unconstrained ones. This indicates that low reporting quality drives higher cash holdings when firms are, in addition, financially constrained, which emphasizes the importance of information asymmetry for corporate cash holdings. Overall, our conclusion is consistent with the precautionary motive for cash holdings. We also find support for the notion that corporate transparency is a key factor in explaining a firm’s cash management policy, and in general, corporate policies. [less ▲]

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See detailConceptualizing Tactics and Engagement in Amateur Media Practices: A Longue Durée Perspective
van der Heijden, Tim UL

Scientific Conference (2018, June 27)

This paper reflects on media tactics and engagement in amateur media practices from a longue durée perspective. More specifically, it addresses the question how discourses on and from users of different ... [more ▼]

This paper reflects on media tactics and engagement in amateur media practices from a longue durée perspective. More specifically, it addresses the question how discourses on and from users of different amateur and home movie technologies – from film via home video to digital media – reflect various forms of engagement, adaptation and resistance in amateur user practices. In the history of amateur filmmaking, a wide variety of users can be identified – from family filmmakers to cine-club hobbyists or even avant-garde artists. Differentiating not only between user types, but also between user generations, this paper argues, is helpful for understanding the user dynamics involved in so-called periods of transition, when the introduction of a new media technology brings about an (re)positioning of users vis-à-vis the new media technology’s affordances and constraints within its different contexts of use. Based on a historical discourse analysis of a wide variety of amateur photography, film and video magazines published between 1895 and 2005, the paper aims to provide both a conceptual and long-term historical reflection on this user dynamics involved in transitions of amateur media technologies and user practices. In total four periods of transition will be compared: the introduction of (1) small-gauge technologies in the 1920s and 1930s, (2) Super 8 film technologies in the 1960s, (3) home video technologies in the late 1970s and 1980s, and (4) digital media technologies in the 1990s and 2000s. Distinguishing between so-called ‘first-time users’, ‘adoptive users’ and ‘resistant users’ as together constituting a user generation in these four periods of transition, shows that while tactics and engagement involved in amateur media practices may take different forms throughout time, dependent on user types and contexts of use, actually various continuities (e.g. democratization discourses) and “historical hybridities” can be found in and between user generations of twentieth-century amateur media technologies. [less ▲]

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See detailZusammenarbeit mit den Eltern und Valorisieren der Familiensprachen mit der App iTEO.
Kirsch, Claudine UL

Scientific Conference (2018, June 26)

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See detailKommentar zu DIN EN 1994-1-1, Verbundtragwerke aus Stahl und BEton
Schäfer, Markus UL; Hanswile, Gerhard

Scientific Conference (2018, June 22)

Design of Composite Structures in steel and concrete according to EN 1994-1-1, presentation of special requirements and boundary conditions for the design of composite beams and columns.

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See detailEmergent Multilinguals Learning Languages with the iPad app iTEO
Aleksic, Gabrijela UL; Kirsch, Claudine UL

Scientific Conference (2018, June 22)

This presentation showed the results of a small-scale study led by Ass. Prof. Claudine Kirsch that investigated language learning in primary schools in Luxembourg and the ways in which this process is ... [more ▼]

This presentation showed the results of a small-scale study led by Ass. Prof. Claudine Kirsch that investigated language learning in primary schools in Luxembourg and the ways in which this process is mediated by peers and the iPad app iTEO. This study draws its data from the larger longitudinal qualitative research project iTEO (2013–2017) and is based on 10 hours of audio and video-recordings. The participants were 6–7-year-olds learning German and French. The presentation focused on the ways in which the emergent multilingual primary school children scaffold each other’s learning of French while collaboratively producing oral texts on iTEO. The findings show that the children’s language learning was mediated by peers, the task and the app. The children used a range of learning and teaching strategies while completing tasks framed by their teacher. iTEO and the task together mobilised the children’s resources, encouraged autonomy and promoted discussion about language. The presentation linked the results with the other projects during the COST DigitLitey meeting. For example, the link was made with the work with robots in early childhood education and the use of Cubetto, a robot toy teaching kids code and programming and encouraging collaboration and storytelling. The presentation was followed by a discussion on the use of digital tools in early childhood education settings. Keywords: The iPad app, iTEO, peers, language learning, mediation, primary school Source: Kirsch, C. & Bes Izuel, A. (2016). Emergent multilinguals learning languages with the IPad app iTEO: a study in primary schools in Luxembourg, The Language Learning Journal, 2016. https://doi.org/10.1080/09571736.2016.1258721 This work was funded by the University of Luxembourg under Grant PUL R-AGR-0222; Ministry of National Education, Childhood and Youth under SCRIPT. [less ▲]

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See detailFlachdecken in Verbundbauweise Bemessung und Konstruktion von Slim-Floor-Trägern
Schäfer, Markus UL

Scientific Conference (2018, June 22)

Presentation of basic information for design of slim-floor beams and presentation of executed projects

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See detailOn bisymmetric and quasitrivial operations
Devillet, Jimmy UL

Scientific Conference (2018, June 21)

See attachment

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See detailExploring Multilingual Pedagogies: Forced Migrants’ Learning Experiences in Luxembourg
Kalocsanyiova, Erika UL

Scientific Conference (2018, June 20)

While most societies are structured around diverse flows of people and complex linguistic repertoires, (language) education schemes are still dominated by monolingual instructional practices. This paper ... [more ▼]

While most societies are structured around diverse flows of people and complex linguistic repertoires, (language) education schemes are still dominated by monolingual instructional practices. This paper aims to contribute to current discussions on the affordances of multilingual pedagogies in contexts of forced migration. It draws on a range of linguistic ethnographic data (Copland & Creese, 2015) that was collected over the period of 2016-2017 in diverse settings of language learning and socialization. Our research sites in Luxembourg included language courses in French, English and German, mathematics courses, application and web development training, and diverse leisure activities. Having followed the learning trajectory of five asylum applicants, we explored how they built on their old and newly-acquired language resources. Our findings confirm that in order to make their voices heard, the learners often drew upon elements from multiple languages, including those local languages they had no extensive competence in. This multilingual orientation enabled them to see the local languages as new functional resources in their growing repertoires (Kalocsányiová, 2017). This is of special relevance in contexts of forced migration, where learners need to become users of the languages they are learning from the first day onward. [less ▲]

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See detailMagnetic SANS is different than nonmagnetic SANS
Michels, Andreas UL

Scientific Conference (2018, June 18)

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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 detailEBC network
Lehnert, Thorsten UL

Scientific Conference (2018, June 12)

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See detailDetecting Public Health crises: APC-Detrended methodology and residuals in a 25-country, 35-year mortality matrix
Chauvel, Louis UL; Leist, Anja UL; Smith, Herbert

Scientific Conference (2018, June 09)

Background. Mortality-by-cause analyses as done in the Global Burden of Disease 2016 update are helpful to monitor progress of public health improvements within and across countries. However, separate ... [more ▼]

Background. Mortality-by-cause analyses as done in the Global Burden of Disease 2016 update are helpful to monitor progress of public health improvements within and across countries. However, separate analyses by cause and country miss larger patterns of public health crises that are restricted to certain cohorts and periods. Those public health crises may go unnoticed even if they affect several countries and thus come with some threat potential. We propose a new method to detect cohorts with increased mortality at certain ages and periods. Method. We develop an analytical and visualizing technique based on established Age-Period-Cohort-Detrended (APCD) methodology (Chauvel and Schröder 2014). After detecting all-cause mortality increases, plotting the resulting age-period coefficients and APCD residuals in equilateral Lexis diagrams, mortality patterns can be distinguished as age, period, or cohort trends and fluctuations. Age-period interactions are plotted as ‘big red spots’. We employ the new technique in data from the Human Mortality Database, spanning 25-60 years of age, calendar years 1975-2010, and 25 countries. Results. We detect age-period interactions of young-adult cohorts in the early 1990s in Spain, other southern European countries and the U.S. Additional analyses with WHO mortality data show that mortality increases are mostly due to increased HIV/AIDS mortality. Discussion. Country-specific explanations, such as political frustrations in Spain, have been proposed to explain the 1990s increases in HIV/AIDS mortality. However, the new technique suggests that increases in HIV/AIDS mortality were more likely to be due to specific behaviors of cohorts of certain ages in a certain period. We discuss limitations of the method, such as detecting social class mortality differences of affected cohorts. Altogether, the new technique offers intuitive and efficient handling of large amounts of age-country-year mortality information. The method can further be applied in the fields of education, longevity, and demography at large. [less ▲]

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See detailDesigning personalized, interactive materials for presentation skills
Deroey, Katrien UL

Scientific Conference (2018, June 09)

In this talk I demonstrate how we can design and adapt materials for presentation skills to build on students’ individual needs and disciplinary backgrounds in an interactive way. The context for this is ... [more ▼]

In this talk I demonstrate how we can design and adapt materials for presentation skills to build on students’ individual needs and disciplinary backgrounds in an interactive way. The context for this is a conference skills course I’ve designed and successfully taught for several years. The PhD students on this course vary greatly in their presentation skills, experience and disciplinary background. After an overview of the course content and format, I illustrate how students’ own presentations and research can be integrated so as to enhance personal relevance and interactivity. Aspects of this personalized, interactive course design include filming student presentations, structured peer feedback and reflection, a pre-course questionnaire, and tasks requiring them to work with their conference calls, research, texts, visuals and experiences. I conclude with a summary of course feedback, highlighting what students reported as being particularly useful and what they would add or change. [less ▲]

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See detailFoodscapes in Transition: Policies and Politics Advancing Sustainable Development and Social Justice
Reckinger, Rachel UL; Wahlen, Stefan

Scientific Conference (2018, June 07)

In this session, we would like to discuss the impact, risks and motivations of producers and consumers altering foodscapes. Of particular interest are enabling types of governance that improve ecological ... [more ▼]

In this session, we would like to discuss the impact, risks and motivations of producers and consumers altering foodscapes. Of particular interest are enabling types of governance that improve ecological balance and social justice in policies of governmental regulation and institutions but also in the politics of for example alternative food movements. The main impact that heterodox actors can have seems to be, on one hand, the creation of resourcefulness from innovative niches, not designed to be upscaled but spread by ubiquitous networking and, on the other hand, the exemplification of heterodox economic practices that reduce the current deskilling of producers and consumers and the depletion of natural resources. The risk associated with heterodox initiatives is, besides basic economic viability, territorial competition over land and resources, as well as – more insidiously – the potential of co-option by neoliberal corporate agendas. The motivations of actors involved in such social movements, albeit diverse, tend to stem from a stance of care and ethical (self)government, often using community self-organisation-tools. Such an analysis of food value chain practices focuses on negotiations and struggles among actors in a multifaceted foodscape, where some block and some enhance transitions. Viewing the relationships, interconnectedness and agency of niche innovations and regime hegemonies opens up the perspective of contested knowledge claims. Additionally, the ways in which actors in the regulatory field advance transitions by policy measures and initiatives need to be considered, and in particular the processes of politicization as interdependencies between movement actors and the public sphere. Yet, the daily practices stay embedded in social, cultural and economic constraints and in routines, which are built on tacit knowledge, collective learning and engrained practices; even though repetitive, they can account for both reproduction and innovation. Which types of governance at all levels have shown themselves to be effective in supporting and empowering such bottom-up changes in “knowing and growing food in a contested arena” (Goodman, DuPuis, Goodman, 2014)? [less ▲]

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See detailAlternative Actors in the Foodscape: Enabling Policies and Politics of Contested Claims for Social and Environmental Justice
Reckinger, Rachel UL

Scientific Conference (2018, June 07)

Recently, a number of resourceful community-driven initiatives for local food production and retail have arisen in Luxembourg, where low organic agricultural rates are paired with high consumer demands ... [more ▼]

Recently, a number of resourceful community-driven initiatives for local food production and retail have arisen in Luxembourg, where low organic agricultural rates are paired with high consumer demands for organic produce, leading to a largely imported organic market. As an encompassing reaction, a niche of social innovators are combining agro-ecological land use and food production with locavorousness and circular economy. Based on qualitative interviews and participant observation, we expand on four case studies of fruit and vegetable production as well as unpackaged and/or socially responsible food retail in today’s Luxembourg. One has been established since the 1980s with over 200 employees, partly in social insertion measures, producing and importing organic fruit and vegetables. Since 2014, three significantly smaller initiatives with higher citizen involvement have emerged, with a cooperative governance structure, a claimed community-supported agricultural outlook, a dynamic presence on social media and regular hands-on workshops and activities. These recent initiatives are more radical in their agro-ecological and/or permaculture practices. In a renewed enacting of circular economy precepts, they focus on local production without relying on imports, as a politicized step further than (possibly industrialized) organic production. Grounded in heterodox experiences of alternative actors in food production and retail niches, we analyse ethical entrepreneurship and the governmentality at its core, political enabling or disabling structures and regulations, as well as commodification and upscaling issues. Therefore, this paper touches on governance interrelations between food policies and politics the politics of contested claims for, and practices of, social and environmental justice. [less ▲]

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See detailGovernance and Price Jumps
Lehnert, Thorsten UL

Scientific Conference (2018, June 07)

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