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See detailSmall in size, great in significance: conspicilla and perspicilla in the visual arts of the Low Countries around 1600
Koeleman, Floor UL

Scientific Conference (2021, July)

A largely forgotten constcamer painting from the early seventeenth century shows eyeglasses and a telescope in close proximity. The inclusion of these extensions of sight in The Five Senses of the Musée ... [more ▼]

A largely forgotten constcamer painting from the early seventeenth century shows eyeglasses and a telescope in close proximity. The inclusion of these extensions of sight in The Five Senses of the Musée Magnin (Dijon) seems to allude to the implicit link between the two. As tools to observe with and through, these instruments visualize the limits of human perception and the ability to alter the scale of the visible world. The Five Senses was created in Antwerp around the same time the telescope first appeared in textual sources, namely 1608. However, the optical instrument is likely to have existed for years by then. This paper investigates if any references to the telescope in the visual arts predate the first written evidence of its invention. For artists the early telescope was probably not that challenging an object to represent. The exterior, a simple tube characterized by a diaphragm, housed two lenses made by the same glass industry that manufactured eyeglasses. This paper takes a closer look at the imagery of eyeglasses and telescopes, depicted in the visual arts of the late sixteenth and early seventeenth centuries. The meaning assigned to these instruments can be inferred from the context in which they are presented and their relative scale. Together eyeglasses and telescopes feature prominently in constcamer paintings dedicated to visual perception, understood both physically and metaphysically. While the exact date of creation remains subject to debate, The Five Senses probably contains the earliest known depiction of a telescope – true to scale. [less ▲]

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See detailFathering desires and intentions: A comparison of childless gay and straight men in Germany
Kranz, Dirk; Busch, Holger; Niepel, Christoph UL

Scientific Conference (2021, July)

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See detailMeasuring multicultural ideology: Scale development and validation in different languages and contexts
Stogianni, Maria UL; Schmidt, Lea Marie; Murdock, Elke UL et al

Scientific Conference (2021, July)

Increased migration has led to the formation of culturally diverse societies in many places around the world. The concept of Multicultural Ideology incorporates two values as a way to promote positive ... [more ▼]

Increased migration has led to the formation of culturally diverse societies in many places around the world. The concept of Multicultural Ideology incorporates two values as a way to promote positive intercultural relations: a) Diversity: the presence of ethnocultural diversity in the population and b) Equity: the right for equal participation of all cultural groups in the society. Both diversity and equity are necessary conditions for the success of multicultural policies. Culturally heterogeneous communities that do not support inclusion and equitable participation of all groups face the negative consequences of segregation and marginalization. In line with this notion, an international research consortium is developing a revised version of the Multicultural Ideology Scale to assess the endorsement of multicultural ideology in different national contexts. The scale aims to distinguish various attitudinal dimensions of multiculturalism, relevant to the acceptance of diversity and social inclusion of different ethnocultural groups: Cultural Maintenance, Social Interaction, Equity/Inclusion, Extent of Differences, Conflictual Relations, Essentialistic Boundaries. We present the first assessment of the new scale in the German language. The survey was administered online to a sample of native German citizens (N = 382) with different demographic characteristics. Our aim was to understand the attitude of native citizens towards cultural diversity and their willingness to have members of ethnic minority groups be included in the larger society. We investigated the factor structure of the scale, its psychometric properties, and the relationship between multicultural ideology and some individual difference variables, such as ethnic group attachment and social dominance orientation. [less ▲]

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See detailKnowledge assessment with concept maps: Opportunities and challenges
Rohles, Björn UL; Koenig, Vincent UL; Fischbach, Antoine UL et al

Scientific Conference (2021, July)

21st-century digital society poses tremendous challenges for education and assessment. Learners have to understand the complex relations between diverse topics and learn how to learn their entire lives ... [more ▼]

21st-century digital society poses tremendous challenges for education and assessment. Learners have to understand the complex relations between diverse topics and learn how to learn their entire lives. Concept mapping is a promising approach to address these issues. It is a method that uses concepts connected by labeled links to visualize a semantic network of knowledge. Concept mapping is predestined for a digital approach because it allows for easy interactive editing, innovative test items, and incorporation of multimodal information. Concept mapping is available for summative and formative assessment and, thus, provides the opportunity to become a vital part of modern education. The biggest advantage of concept mapping (i.e., a comprehensive and yet comprehensible visualization of complex relations) also represents the biggest challenge when it comes to assessment with - and scoring of - concept maps. The first challenge is the enormous amount of indicators used for scoring concept maps in assessment. A second challenge comes from the fact that educators using concept mapping in their assessment have to understand and interpret the indicators that are used in scoring concept maps. This presentation reports on a Ph.D. project that investigates digital concept mapping in the context of knowledge assessment from a user experience perspective. The results are based on, first, a comprehensive international systematic literature review on concept map scoring, and second, three empirical studies covering the needs and experiences of learners and educators in concept mapping. It presents key findings from the iterative user experience design of a concept mapping tool as part of the online assessment platform OASYS, an overview of indicators used in concept map scoring, and research opportunities in knowledge assessment with concept maps. Finally, it stresses the value that user experience design brings to knowledge assessment with concept maps. [less ▲]

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See detailDigging into Digital Roots: introduction
Ribeiro, Nelson; Schafer, Valerie UL

Scientific Conference (2021, July)

Presentation of the project at stake (a collective book whose idea was born within the ECREA Communication History Section), its approach and theoretical framework.

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See detailWorkshop : Data as a new resource? Similarities and differences of data vs. material resources
Schafer, Valerie UL; Veraart, Frank; Niet, Irene

Scientific Conference (2021, June 29)

This exploratory workshop is dedicated to scholars interested in technological developments related to digital technologies and resource developments. The workshop focusses on three notions: (1 ... [more ▼]

This exploratory workshop is dedicated to scholars interested in technological developments related to digital technologies and resource developments. The workshop focusses on three notions: (1) historical parallels of digital data with the development of other key material resources, (2) data as a commodity and its infrastructure, and (3) sustainability issues and (big)data. [less ▲]

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See detailScaling of urban heat island and NO2 with urban population: A meta-analysis
Wei, Yufei UL; Caruso, Geoffrey UL; Lemoy, Rémi

Scientific Conference (2021, June 29)

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See detailDiscovering Pesticides, Pharmaceuticals TPs in Luxembourg Waters using Open Cheminformatics Approaches
Krier, Jessy; Singh, Randolph R.; Kondic, Todor UL et al

Scientific Conference (2021, June 24)

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See detailIterative STEAM design in primary grades and in pre-service teacher training
Kreis, Yves UL; Haas, Ben

Scientific Conference (2021, June 24)

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See detailThe effect of temperature and joining speed on the joining quality for conduction laser joining of metals to polymers
Amne Elahi, Mahdi UL; Hennico, Max; Plapper, Peter UL

Scientific Conference (2021, June 24)

Laser joining of metals to polymers offers several advantages to produce lightweight hybrid assemblies. An important one is the exceptional control over the heat input which defines the temperature at the ... [more ▼]

Laser joining of metals to polymers offers several advantages to produce lightweight hybrid assemblies. An important one is the exceptional control over the heat input which defines the temperature at the interface of the materials. Initially, the in-situ heating observation of PA inside ESEM is considered. Then, aluminum and polyamide are joined in an overlap configuration while the temperature was recorded simultaneously at different areas between the materials. The results show that due to excessive heat input, polyamide degrades and leaves bubbles in the melted area. Finally, the materials are laser joined with several joining speeds to investigate different cooling rates of the polyamide during the joining process. It is concluded that joining with high cooling rates generates an amorphous melted layer of the polyamide which is different from the semi-crystalline structure of the bulk. This difference acts as a stress concentration zone and reduces the shear strength of the assembly. [less ▲]

Detailed reference viewed: 94 (10 UL)
See detailChallenging the Status Quo: Citizens’ Access to Justice to Protect a Healthy Environment in Europe
Muñoz, Susana UL

Scientific Conference (2021, June 22)

The EU and its Member States must guarantee the respect of citizens’ right of access to environmental information, public participation in decision-making and access to justice in environmental matters ... [more ▼]

The EU and its Member States must guarantee the respect of citizens’ right of access to environmental information, public participation in decision-making and access to justice in environmental matters. Nevertheless, no framework for access to justice in the EU Member States exists. On 14 October 2020, the European Commission adopted a legislative proposal amending the Aarhus Regulation as part of the European Green Deal. The aim is to strengthen the EU’s system of access to justice in environmental matters, including the role of the Member States and national courts. Drawing on European and national case law and legislation, this paper provides a critical review of the current application of access to justice and the proposed amendments. It further explores legal avenues for strengthening the citizens’ access to justice within the multilevel protection of a healthy environment in Europe. [less ▲]

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See detailPrediction of Cu-Al weld status using convolutional neural network
Mathivanan, Karthik UL; Plapper, Peter UL

Scientific Conference (2021, June 21)

Welding copper (Cu) and aluminum (Al) result in brittle intermetallic (IMC) phases, which reduces the joint performance. The key for a strong joint is to maintain an optimum amount of Al and Cu ... [more ▼]

Welding copper (Cu) and aluminum (Al) result in brittle intermetallic (IMC) phases, which reduces the joint performance. The key for a strong joint is to maintain an optimum amount of Al and Cu composition in the joint. To implement this without the destruction of the sample is a challenge. For this purpose, high-resolution images of the weld zone are utilized after welding. With the image processing technique, the presence of (Al/Cu) material melted is distinguished. Therefore, the different weld type/status like insufficient melt, optimum melt, and excessive melt is detected from the images. This paper analyses the weld images and applies the convolutional neural network technique to predict the weld type. The microstructure and Energy Dispersive X-ray Spectroscopy (EDS) analysis of the fusion zone for each weld type are correlated to the weld images. [less ▲]

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See detailThe Educational Economics of UNESCO's First Regional Centre on Fundamental Education in the Immediate Post-War Period: An Archival Exploration
Kesteloot, Stefanie UL

Scientific Conference (2021, June 21)

The end of the Second World War marked the start of a new era, with worldwide support for a Universal Declaration of Human Rights (UDHR) in December 1948. By signing the Universal Declaration, the Member ... [more ▼]

The end of the Second World War marked the start of a new era, with worldwide support for a Universal Declaration of Human Rights (UDHR) in December 1948. By signing the Universal Declaration, the Member States of the United Nations pledged to promote a series of universal values. As part of the UN, UNESCO made a major effort to disseminate the Declaration and its content globally, at a national, regional and local level. The idea of “building peace in the minds of men and women” and encouraging equal rights was central to UNESCO’s mission. An archival exploration of the correspondence material of UNESCO’s secretariat, available at the UNESCO archives, offers an insight into the continuous struggle faced by the staff for the creation and implementation of educational initiatives on human rights. One focus of UNESCO’s work was the area of fundamental education. Early general correspondence found related to this topic reveals the continuous flow of communication between the different UNESCO departments, especially the office of the Director-General and the Departments of Mass Communication and Education. The discussions were mainly centred on the development of centres for fundamental education. The location to choose, the content and methodology to use, and the appropriate strategy to raise the funds needed for the continued implementation of regional centres of fundamental education, were just some of the issues addressed. The initial financial and ideological support from the Member States seems to have been slowly replaced by budgetary constraints and political opposition. A network of international experts on fundamental education helped promote UNESCO’s initiatives to possible funders with a view to creating twelve fundamental education centres all over the world. Their contribution was seen as vital for the implementation of the project. Despite the hard work and lobbying activities, only two of the initially planned twelve centres were established. Through this focus on fundamental education, I will argue that, despite the worldwide support for this philosophical and humanistic ideal, political and economic interests soon came to dominate the transition of this initial project to local communities, creating imbalances in relations within and between nations. Consequently, the dissemination and promotion of the UDHR was subject to a wide range of individual translations by UNESCO’s Member States. This only enlarged the difficult task for the intergovernmental organisation to mediate the development of peace in the minds of men and women. [less ▲]

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See detailThe gap in Covid-19 memory banks: on the use and usefulness of rapid response collections
Zumthurm, Tizian UL

Scientific Conference (2021, June 18)

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See detailThinking Borders and Border Thinking
Wille, Christian UL

Scientific Conference (2021, June 17)

Obwohl die Grenz- und Migrationsforschung große Überschneidungen aufweisen, unterscheiden sie sich z.B. hinsichtlich ihrer Erkenntnisinteressen und Theoretisierungen. Der Vortrag baut auf solchen ... [more ▼]

Obwohl die Grenz- und Migrationsforschung große Überschneidungen aufweisen, unterscheiden sie sich z.B. hinsichtlich ihrer Erkenntnisinteressen und Theoretisierungen. Der Vortrag baut auf solchen Gemeinsamkeiten und Unterschieden auf und zeigt zunächst die Verbindungen zwischen Grenz- und Migrationsforschung. Im zweiten Schritt werden aus Sicht der Grenzforschung verschiedene analytische Trends – insbesondere die komplexitätsorientierte Perspektive – und die damit verbundenen Grenzkonzepte vorgestellt. Abschließend werden die analytischen Trends mit der Methode „border thinking“ (Mignolo) in Zusammenhang gebracht und gefragt, inwiefern sie für die Migrationsforschung nützlich sein können. [less ▲]

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See detailAWJC Nozzle simulation by 6-way coupling of DEM+CFD+FEM using preCICE coupling library
Adhav, Prasad UL; Besseron, Xavier UL; ROUSSET, Alban et al

Scientific Conference (2021, June 16)

The objective of this work is to study the particle-laden fluid-structure interaction within an Abrasive Water Jet Cutting Nozzle. Such coupling is needed to study the erosion phenomena caused by the ... [more ▼]

The objective of this work is to study the particle-laden fluid-structure interaction within an Abrasive Water Jet Cutting Nozzle. Such coupling is needed to study the erosion phenomena caused by the abrasive particles inside the nozzle. So far, the erosion in the nozzle was predicted only through the number of collisions, using only a simple DEM+CFD[1] coupling. To improve these predictions, we extend our model to a 6-way Eulerian-Lagrangian momentum coupling with DEM+CFD+FEM to account for deformations and vibrations in the nozzle. Our prototype uses the preCICE coupling library[2] to couple 3 numerical solvers: XDEM[3] (for the particle motion), OpenFOAM[4] (for the water jet), and CalculiX[5] (for the nozzle deformation). XDEM handles all the particle motions based on the fluid properties and flow conditions, and it calculates drag terms. In the fluid solver, particles are modeled as drag and are injected in the momentum equation as a source term. CalculiX uses the forces coming from the fluid solver and XDEM as boundary conditions to solve for the displacements. It is also used for computing the vibrations induced by particle impacts. . The preliminary 6-way DEM+CFD+FEM coupled simulation is able to capture the complex particle-laden multiphase fluid-structure interaction inside AWJC Nozzle. The erosion concentration zones are identified and are compared to DEM+CFD coupling[1]. The results obtained are planned to be used for predicting erosion intensity in addition to the concentration zones. In the future, we aim to compare the erosions predictions to experimental data in order to evaluate the suitability of our approach. The FEM module of the coupled simulation captures the vibration frequency induced by particles and compares it with the natural frequency of the nozzle. Thus opening up opportunities for further investigation and improvement of the Nozzle design. [less ▲]

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See detailLuxembourg born-digital heritages of the COVID-19 crisis, Round Table
Zumthurm, Tizian UL

Scientific Conference (2021, June 16)

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See detailA chain of adjuntions between BA and the variety generated by a semi-primal bounded lattice expansion
Kurz, Alexander; Poiger, Wolfgang UL; Teheux, Bruno UL

Scientific Conference (2021, June 12)

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See detailScaling of urban heat island and nitrogen dioxide with urban population: a meta-analysis
Wei, Yufei UL; Caruso, Geoffrey UL; Lemoy, Rémi

Scientific Conference (2021, June 10)

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See detailResponsibility for Property and Assets Frozen or Seized by States Upon Request by the International Criminal Court
Owiso, Owiso UL

Scientific Conference (2021, June 10)

Article 57(3)(e) of the Rome Statute of the International Criminal Court empowers the International Criminal Court to ‘seek the cooperation of States pursuant to article 93, paragraph 1 (k), to take ... [more ▼]

Article 57(3)(e) of the Rome Statute of the International Criminal Court empowers the International Criminal Court to ‘seek the cooperation of States pursuant to article 93, paragraph 1 (k), to take protective measures for the purpose of forfeiture, in particular for the ultimate benefit of victims’ while Article 93(1)(k) imposes an obligation on state parties to the statute to provide assistance to the Court in the ‘identification, tracing and freezing or seizure of proceeds, property and assets and instrumentalities of crimes for the purpose of eventual forfeiture’. However, the Court does not yet have sufficient jurisprudence to flesh out the conceptual and practical boundaries of these provisions, including the question of responsibility for the management of the frozen or seized property and assets. If the Court’s very limited relevant jurisprudence is anything to go by, it is urgently necessary to interrogate these provisions and their practical application, as these questions lie at the very core of the Court’s integrity and credibility. This is especially so as the Court seeks to expand its practical reach beyond (mainly indigent) non-state actors to state actors, a situation that is likely to call more attention to the Court’s powers and responsibilities specifically relating to Articles 57(3)(e) and 93(1)(k). This article interrogates the Court’s powers under Article 57(3)(e) and the extent of obligations of the Court and state parties arising from Article 93(1)(k), and the possible implications for the rights of accused persons, the rights and expectations of victims and for state cooperation. [less ▲]

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See detailMeandering Identities: Affective Dialogues across Continents
Murdock, Elke UL; Campill, Marc-Antoine

Scientific Conference (2021, June 10)

One facet of contemporary societies is their increasingly divers composition. In terms of its demographic composition, Luxembourg can in fact be described as super-diverse. The foreign population ... [more ▼]

One facet of contemporary societies is their increasingly divers composition. In terms of its demographic composition, Luxembourg can in fact be described as super-diverse. The foreign population percentage stands at 47.5% and encloses migrants of different generation statuses and intentions to stay – ranging from a working day, to the length of a contract to permanence. Luxembourg is a trilingual country, with English and Portuguese being widely spoken as well. Luxembourg thus provides a rich context for identity construction. The majority of immigrants have European roots, but there is an increasing number of foreigners with a non-European background. We explored the identity-construction processes of eight Japanese women who had moved to Luxembourg. In particular, we were interested in the negotiation process or cultural dialogues these Japanese women engage in following their move to Luxembourg. Multicultural Luxembourg and homogenous Japan provide two very different cultural contexts and our aim was to understand if and how our subjects would engage in dialogues across continents. As noted by Hermans (2001) I positions create dialogical relations with each other by reorganizing themselves in flexible ways from one position to another due to its context-dependency. In our qualitative study we prompted context by providing three sets of visual stimuli. The first set comprised typical images of Luxembourg, the second matched images of Japan and in the third set we presented hybrid images – juxtaposing Japanese and European images. Especially the reactions to the last set of primes prompted a dialogical narration – dialogical interactions between different I positions. For the majority of our subjects we observed a harmonious or flexible flow of I positions within the self – a meandering between reference points and experiences in Japan and Luxembourg. Some ambivalence and disharmonious dialogues could also be observed. Examples for these affective dialogues across continents will be presented. [less ▲]

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See detailSymposium: Looking back or forward? The cultural identity construction of immigrant youth.
Murdock, Elke UL; Albert, Isabelle UL; Maehler, Debora et al

Scientific Conference (2021, June 03)

This symposium pursues cultural identity formation (in terms of identifications with country of origin and country of residence) of immigrant youth using different methods. We will start with a literature ... [more ▼]

This symposium pursues cultural identity formation (in terms of identifications with country of origin and country of residence) of immigrant youth using different methods. We will start with a literature review on previous findings on cultural identification of first-generation immigrant youth worldwide, zoom in closer by looking on identity transmission processes between generations and finishing off with individual-level findings on identity construction by second-generation immigrants. First, results from a meta-analysis will be presented which investigated core factors affecting identity development among first-generation youth. The meta-analysis summarized which individual and context related factors predict cultural identity formation. The second study, employing a quantitative design, focuses on the cultural identity processes and dynamics of change between first-generation immigrant parents and their children (second generation) in a heterogeneous European country context - Luxemburg. The third study employs a qualitative design focusing on identity negotiation processes of young second generation immigrants growing up in Germany. Young Tamils were interviewed, exploring the cultural navigation processes in-depth. Findings across the studies and approaches indicate moderate to strong identifications with both, the country of origin and country of residence. The drivers for each outcome will be discussed. [less ▲]

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See detailInsights from a qualitative study of second-generation young Tamils growing up in Germany
Murdock, Elke UL; Mohanambal, Pavithraa

Scientific Conference (2021, June 03)

The aim of the study is to examine identity construal processes of young Tamils growing up in Germany. Their parents moved to Germany in the 80s fleeing conflict in Sri Lanka. Building on the theoretical ... [more ▼]

The aim of the study is to examine identity construal processes of young Tamils growing up in Germany. Their parents moved to Germany in the 80s fleeing conflict in Sri Lanka. Building on the theoretical framework on biculturalism developed by Yampolsky et al. (2013) we explored, using a qualitative approach, to what extent second-generation Tamils see themselves as a product of two cultures. Semi-structured interviews were carried out with ten participants (5 men and 5 women). All participants were born in Germany and completed schooling in Germany. All participants also attended Tamil schools and speak the Tamil language. Traditional Tamil values include making parents proud (collectivistic orientation), a conservative understanding of gender roles and emphasizing duty over joy. This is quite different to predominant values in Germany which is why we wanted to explore, how second-generation Tamils organize their cultural identities and what compromises they make in order to live up to cultural influences and expectations, focusing on the negotiation processes our participants engage in in navigating their cultural influences. The majority of our participants feel committed to both cultural influences and identify with both. We will show the different ways of compromise our participants have adopted. [less ▲]

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See detailMultiple Trajectory Analysis in Finite Mixture Modeling
Noel, Cédric UL; Schiltz, Jang UL

Scientific Conference (2021, June 02)

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See detailReplicating the Kinora: 3D modelling and printing as heuristics in digital media history
van der Heijden, Tim UL; Wolf, Claude UL

Scientific Conference (2021, June 02)

This presentation reflects on the Kinora replica project, an interdisciplinary collaboration between the Luxembourg Centre for Contemporary and Digital History (C2DH) and the Department of Engineering ... [more ▼]

This presentation reflects on the Kinora replica project, an interdisciplinary collaboration between the Luxembourg Centre for Contemporary and Digital History (C2DH) and the Department of Engineering (DoE) of the University of Luxembourg. Combining historical inquiry with a hands-on and technical approach – involving the latest 3D modelling and desktop additive manufacturing engineering techniques – it provides insights into the process of making a working replica of the Kinora motion picture technology from the early 1900s. [less ▲]

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See detailCultural identity in the context of migration – The case of Portuguese first generation immigrants in Luxembourg and their second generation children
Albert, Isabelle UL; Barros, Stephanie

Scientific Conference (2021, June)

While first generation immigrants carry a cultural heritage to their receiving country, their children are confronted with different cultural influences during their formative years. How does this so ... [more ▼]

While first generation immigrants carry a cultural heritage to their receiving country, their children are confronted with different cultural influences during their formative years. How does this so-called second-generation experience their cultural identities compared to their parents? To tackle this question, the present study focused on first- and second-generation Portuguese migrants living in Luxembourg. The sample comprises n = 72 PT young adult children (mean age M = 28.2, SD = 7.9; 61.1% female) who participated in the FNR-funded IRMA-project together with their parents (n = 70 PT mothers and n = 65 PT fathers). An adapted version of the bicultural identity orientation scale was employed to assess three dimensions of bicultural identity - compatible, conflicted and frame-switching. We examined patterns of identity constructions of first and second generation by use of cluster analysis, resulting in four profiles: blended, alternating, separated and ambivalent biculturals. Whereas second generation young adults were represented in each typology, parents were mostly found in the alternating or separated clusters. Clusters of parents and their children will be compared and factors contributing to parent-child congruence/incongruence identified. Results will be discussed considering regulatory processes of subjective well-being and different migration experiences in light of generation and age. [less ▲]

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See detailSymposium: Contextual and life-course determinants of later-life cognitive functioning and dementia
Leist, Anja UL; Muniz-Terrera, Graciela

Scientific Conference (2021, June)

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See detailReliability of network-wide traffic management
Rinaldi, Marco; Viti, Francesco UL

Scientific Conference (2021, June)

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See detailRaya: A Tangible Sports Buddy Reminding Oneself of the Commitment to Exercise
Menheere, Daphne; de Haan, Alynne; Vos, Steven et al

Scientific Conference (2021, June)

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See detailA design strategy for phase synchronization in Precoding-enabled DVB-S2X user terminals
Martinez Marrero, Liz UL; Merlano Duncan, Juan Carlos UL; Querol, Jorge UL et al

Scientific Conference (2021, June)

This paper address the design of a phase tracking block for the DVB-S2X user terminals in a satellite precoding system. The spectral characteristics of the phase noise introduced by the oscillator, the ... [more ▼]

This paper address the design of a phase tracking block for the DVB-S2X user terminals in a satellite precoding system. The spectral characteristics of the phase noise introduced by the oscillator, the channel, and the thermal noise at the receiver are taken into account. Using the expected phase noise mask, the optimal parameters for a second-order PLL intended to track channel variations from the pilots are calculated. To validate the results a Simulink model was implemented considering the characteristics of the hardware prototype. The performance of the design was evaluated in terms of the accuracy and stability for the frame structure of superframe Format 2, as described in Annex E of DVB-S2X. [less ▲]

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See detailBroadband Non-Geostationary Satellite Communication Systems: Research Challenges and Key Opportunities
Al-Hraishawi, Hayder UL; Chatzinotas, Symeon UL; Ottersten, Björn UL

Scientific Conference (2021, June)

Besides conventional geostationary (GSO) satellite broadband communication services, non-geostationary (NGSO) satellites are envisioned to support various new communication use cases from countless ... [more ▼]

Besides conventional geostationary (GSO) satellite broadband communication services, non-geostationary (NGSO) satellites are envisioned to support various new communication use cases from countless industries. These new scenarios bring many unprecedented challenges that will be discussed in this paper alongside with several potential future research opportunities. NGSO systems are known for various advantages, including their important features of low cost, lower propagation delay, smaller size, and lower losses in comparison to GSO satellites. However, there are still many deployment challenges to be tackled to ensure seamless integration not only with GSO systems but also with terrestrial networks. In this paper, we discuss several key challenges including satellite constellation and architecture designs, coexistence with GSO systems in terms of spectrum access and regulatory issues, resource management algorithms, and NGSO networking requirements. Additionally, the latest progress in provisioning secure communication via NGSO systems is discussed. Finally, this paper identifies multiple important open issues and research directions to inspire further studies towards the next generation of satellite networks. [less ▲]

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See detailPain Processing in Older Age – Evidence from Event-Related Potentials
Dierolf, Angelika UL; Rischer, Katharina Miriam UL; González-Rolán, Ana Maria et al

Scientific Conference (2021, June)

Aging is known to affect neurobiological and physiological aspects of pain perception and has been associated with reduced pain sensitivity and a deterioration of descending pain inhibitory mechanisms. To ... [more ▼]

Aging is known to affect neurobiological and physiological aspects of pain perception and has been associated with reduced pain sensitivity and a deterioration of descending pain inhibitory mechanisms. To investigate age differences in neural electrophysiological correlates of pain processing, we induced acute pain in healthy older (60 yrs+) and younger adults (18 to 35 yrs), using short transdermal electrical pulses administered to the inner forearm, with individually adjusted stimulation intensities. Participants received alternating blocks of painful and non-painful control stimulation and rated the intensity and unpleasantness of each stimulus on two visual analog scales. Pain-related evoked potentials were recorded with a 64-channel EEG. Preliminary results indicate that younger and older participants rated painful stimuli more intensive and unpleasant compared to the control stimulation, with older adults showing a slight habituation over time. In younger adults, ERP amplitudes (N2, P2 P3) of painful stimulation were enhanced compared to non- painful stimulation. In contrast, older participants showed generally reduced ERPs, no difference between pain and non-painful stimulation and by tendency longer latencies for painful stimulation. This suggests that nociceptive neural processing is altered in aging, while the reported pain perception is unaffected. Given that aging is also associated with a decline of cognitive functions and PFC volume and activity changes, this could have implications for the efficacy of cognitive pain modulation. Altogether, our results highlight the need for a deeper understanding of the mechanisms underlying pain processing in older adults, and how these age-related changes affect (cognitive) pain treatments in this population. [less ▲]

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See detailInequality of educational opportunity differentially impacts women’s and men’s later-life cognitive performance
Leist, Anja UL; Bar-Haim; Chauvel, Louis UL

Scientific Conference (2021, June)

Find the published paper here: https://doi.org/10.1016/j.ssmph.2021.100837

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See detailChannel Modeling and Analysis of Reconfigurable Intelligent Surfaces Assisted Vehicular Networks
Kong, Long UL; He, Jiguang; Ai, Yun et al

Scientific Conference (2021, June)

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See detailSupporting bariatric surgery patients in their aftercare journey: a playful technological intervention “Truth-or-Dare?"
Driesse, Emma; Verburg, Pepijn; Jansen, Jos-Marien et al

Scientific Conference (2021, June)

Background The amount of people coping with obesity keeps on increasing. While the physical comorbidities are clearly visible, mental issues such as a low self-image are just as damaging. Bariatric ... [more ▼]

Background The amount of people coping with obesity keeps on increasing. While the physical comorbidities are clearly visible, mental issues such as a low self-image are just as damaging. Bariatric surgery is currently the most effective treatment with long-term results [2, 3]. Its effectiveness is however often expressed in postoperative weight loss, leaving the impact on psychological health aside [3]. Methods To support bariatric patients in the aftercare pathway, we designed Truth-or-Dare. Combining a physical artefact and a mobile app, Truth-or-Dare is a playful way to track patients' mental state, using challenges to help them to establish a better self-image and a physical exercise routine. The frame attracts attention by dropping magnetic wooden blocks, indicating it is time to play! The app displays a personalized exercise or reflection challenge. By placing the block back on one side of the frame the choice is made: truth or dare? The Truth-or-Dare frame and app have been used by a former bariatric patient for two weeks. Every 6-12 hours a block fell out of the frame. We conducted two semistructured interviews, the first focused on the experience and initial thoughts about the product, the second informed by the data gathered. During the deployment, we also implemented a feedback loop to collect participants’ experiences with the challenges, allowing to understand which strategy was the most effective for a patient and to iterate on them. Findings The challenges were positively perceived by the participant and helped her to become more aware of her behavior and mindset. While she enjoyed taking her time to perform each challenge, she felt pressed and rushed by the too short interval between challenges. She often rated the challenges as unpleasant, complicated or annoying, yet motivating. If a challenge is annoying, it does not mean it is not motivating. “If I would not want challenges like that, I would ignore my problems.” We observed a pattern of switching between truth and dare challenges, mainly triggered by the physical properties of the board. Discussion Playful Truth-or-Dare challenges implemented in a physical artefact and a related app are a new intervention approach for mental wellbeing after bariatric surgery. It shows potential in raising awareness amongst patients around their behaviors and motivating them throughout their journey. As the product is placed in a shared environment, family members are encouraged to join, which has a positive influence on both the patient and partner [1]. The design of the physical product uses friction as a motivational mechanism: (a) a block on the ground calls for action. Will the patient remove it without performing a challenge or engage with the game? (b) placing the block back, one can choose Truth or Dare. Yet, the board is designed to prevent one type of challenge to be chosen too often. These moments of friction act as triggers to step outside the comfort zone. Further research is necessary to refine the challenges, or even personalize them, and to investigate the longterm effect of Truth-or-Dare on patients’ mental wellbeing and self-image. [less ▲]

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See detailApplying synchronization in branch and trunk bus networks: an experimental analysis
Laskaris, Georgios; Rinaldi, Marco; Viti, Francesco UL

Scientific Conference (2021, June)

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See detailTypes of health-related behaviours: a cluster analysis of the Luxembourgish HBSC data
Heinz, Andreas UL; Willems, Helmut Erich UL; van Duin, Claire UL et al

Scientific Conference (2021, June)

Background: Although it is known that health behaviours, socio-demographic variables and outcomes correlate, it is rarely investigated if there are typical patterns of these variables among the research ... [more ▼]

Background: Although it is known that health behaviours, socio-demographic variables and outcomes correlate, it is rarely investigated if there are typical patterns of these variables among the research subjects. Objectives: To find out whether the students can be divided into distinct groups based on their health behaviour and whether these groups differ in other ways (outcomes and socio-demographics). Method: In step 1, a hierarchical cluster analysis was carried out to determine the number of groups and to identify the cluster centres. In step 2, this information was entered as the initial values of a cluster centre analysis. In step 3, the clusters were characterised using additional variables. Results: The 8065 students surveyed could be divided into 5 distinct groups based on their data on smoking, drinking, soft drinks, exercising, fighting and bullying, with cluster 1 and cluster 5 representing the strongest contrast. Cluster 1 comprises students whose health behaviour is generally positive. It is the largest cluster with 49.5% of students. Cluster 5 comprises students whose behaviour is consistently negative. It is the smallest cluster with 7.1% of students. Students in cluster 2 are close to average on many variables, but their dental health is problematic because they frequently consume soft drinks and rarely brush their teeth. Students in cluster 3 are physically inactive, their mental health is poor, but they are also rarely injured. The students in cluster 4 stand out because of their aggressive behaviour. Conclusion: With the help of cluster analysis, it is possible to categorise the students into a small number of groups based on their health behaviour. These groups are coherent in terms of health behaviour, many outcome variables and socio-demographic variables. [less ▲]

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See detailInvestment and Tax Dispute Settlement Reforms: Do we need Fragmentation?
Garcia Olmedo, Javier UL

Scientific Conference (2021, June)

My panel addressed the impact of domestic law in international agreements and the use of tax, trade, and investment domestic law provisions for the application of international agreements. Some examples ... [more ▼]

My panel addressed the impact of domestic law in international agreements and the use of tax, trade, and investment domestic law provisions for the application of international agreements. Some examples are for instance the use of investment law that leads to non-application of domestic provisions, the need to introduce a domestic tax provision in the framework of legality, and the introduction of a tax measure that can results in indirect expropriation under the investment agreement. [less ▲]

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See detailExploiting Jamming Attacks for Energy Harvesting in Massive MIMO Systems
Al-Hraishawi, Hayder UL; Chatzinotas, Symeon UL; Ottersten, Björn UL

Scientific Conference (2021, June)

In this paper, the performance of an RF energy harvesting scheme for multi-user massive multiple-input multiple-output (MIMO) is investigated in the presence of multiple active jammers. The key idea is to ... [more ▼]

In this paper, the performance of an RF energy harvesting scheme for multi-user massive multiple-input multiple-output (MIMO) is investigated in the presence of multiple active jammers. The key idea is to exploit the jamming transmissions as an energy source to be harvested at the legitimate users. To this end, the achievable uplink sum rate expressions are derived in closed-form for two different antenna configurations. An optimal time-switching policy is also proposed to ensure user-fairness in terms of both harvested energy and achievable rate. Besides, the essential trade-off between the harvested energy and achievable sum rate are quantified in closed-form. Our analysis reveals that the massive MIMO systems can make use of RF signals of the jamming attacks for boosting the amount of harvested energy at the served users. Numerical results illustrate the effectiveness of the derived closed-form expressions over Monte-Carlo simulations. [less ▲]

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See detailAnalgesic effects of interacting with a VR game and associated psychophysiological responses
Holl, Elisabeth UL; Rischer, Katharina Miriam UL

Scientific Conference (2021, June)

Introduction: Virtual reality (VR) has been shown to be an effective tool for pain distraction by redirecting attention away from painful stimuli. Although VR therapy has been successfully implemented in ... [more ▼]

Introduction: Virtual reality (VR) has been shown to be an effective tool for pain distraction by redirecting attention away from painful stimuli. Although VR therapy has been successfully implemented in clinical settings, little is known about the underlying factors that modulate analgesic responses, such as cognitive load, executive functions and VR or gaming experience. Methods: A final sample of N = 90 healthy participants played the VR game Subnautica in a high and a low cognitive load condition. In the low load condition, participants explored the VR along a predefined route. In the high load condition, participants had to additionally memorize eight digits presented along the route. Pain heat thresholds as well as psychophysiological measures (ECG, EDA) were recorded during a non-interactive resting state period prior to playing as well as during the two VR sessions. Furthermore, participants completed questionnaires (e.g., pain attitude) and executive functioning tasks (e.g., go/nogo task). Results: Pain thresholds did not differ for high versus low demand. However, participants achieved higher threshold for the interactive playing sessions compared to the resting state period. Psychophysiological markers (e.g., HRV) indicate lower sympathetic activity during the resting state compared to the playing session (resting state < low load < high load). Moreover, pain catastrophizing and fear of pain were significant predictors of pain thresholds. Discussion: Results shed light on the role of inter-individual differences and psychophysiological markers of VR-based pain sensitivity and indicate factors that facilitate/impair distraction effects. This may have important implication for the use of VR-therapy. [less ▲]

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See detailCognitive distraction from pain: An fMRI study on the role of age and executive functions
Rischer, Katharina Miriam UL; Dierolf, Angelika UL; González-Roldán, Ana M. et al

Scientific Conference (2021, June)

Completing a cognitive task has been shown to be a powerful strategy to reduce concurrent pain. This reduction in pain is assumed to result from a competition between the painful stimulus and the ... [more ▼]

Completing a cognitive task has been shown to be a powerful strategy to reduce concurrent pain. This reduction in pain is assumed to result from a competition between the painful stimulus and the distractive task for attentional and executive resources mediated by the prefrontal cortex (PFC), a region that is particularly affected by age-related grey matter atrophy. In the present study, we investigated the role of age-related changes in gray matter volume and executive functions in modulating the efficacy of distraction from pain. In a first session, young and older adults completed a battery of neuropsychological tests. In a second session, we acquired functional brain images while participants completed a working memory task with two levels of cognitive load (low vs. high load) and concurrently received individually adjusted heat stimuli (innocuous vs. painful) to their lower arm. While we found no age-related differences in the distraction effect size on the behavioural level, young adults showed a larger neural distraction effect in several regions involved in pain processing, including the insula, caudate and midcingulate cortex. Interestingly, older adults with better executive functions, particularly, better inhibitory control abilities, showed a larger neural distraction effect in the insula, thalamus and primary somatosensory cortex, and more activation in frontal clusters during the high load task. Taken together, these findings suggest that age alters the neural mechanisms underlying cognitive distraction from pain, and that the magnitude of these changes may be dependent on the preservation of executive functions. [less ▲]

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See detailDISCOV: Encouraging a Healthy Active Lifestyle through the Design of Interactive Environments.
van Renswouw, Loes; Verhoef, Jasmijn; Vos, Steven et al

Scientific Conference (2021, June)

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See detailDistraction from Pain: An fMRI Study on the Role of Age-related Changes in Executive Functions
Rischer, Katharina Miriam UL; González-Roldán, Ana M.; Montoya, Pedro et al

Scientific Conference (2021, June)

Even though aging is associated with increased and prolonged episodes of pain, little is known about potential age-related changes in the "top-down" modulation of pain, such as cognitive distraction from ... [more ▼]

Even though aging is associated with increased and prolonged episodes of pain, little is known about potential age-related changes in the "top-down" modulation of pain, such as cognitive distraction from pain. The hypoalgesic effect of distraction results from a competition for attentional and executive resources mediated by the prefrontal cortex (PFC). Given that age-related grey matter atrophy is particularly prominent in the PFC, older adults may benefit less from distraction to reduce pain than young adults. The aim of this study was to investigate the influence of aging on task-related hypoalgesia and its neural mechanisms, with a focus on the role of executive functions in distraction from pain. 64 participants (32 young adults: 26.69 ± 4.14 years; 32 older adults: 68.28 ± 7.00 years) first completed a battery of neuropsychological tests. In a second session, we administered a pain distraction paradigm while functional brain images were acquired. In this paradigm, participants completed a low (0-back) and a high (2-back) load condition of a working memory task while receiving either innocuous or painful heat stimuli to their lower arm. To control for age-related differences in sensitivity to pain and perceived task difficulty, stimulus intensity and task speed were individually calibrated. Both age groups showed significantly reduced activity in a network of regions involved in pain processing when performing the high compared to the low load distraction task; however, young adults showed a larger neural distraction effect in several of these regions, including the insula, caudate and midcingulate cortex. Moreover, in older adults, better executive functions – in particular inhibitory control abilities – were associated with a larger neural distraction effect in the insula, thalamus and primary somatosensory cortex, and with more activation in several prefrontal cortex regions during the high load task. These findings clearly demonstrate that the top-down control of pain is altered by age and could explain the higher vulnerability of older adults to developing chronic pain. Moreover, our findings suggest that the assessment of executive functions may be a useful tool for predicting the efficacy of cognitive pain modulation strategies in older adults. [less ▲]

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See detailScaling of urban heat island & NO2 with urban population: a meta-analysis
Wei, Yufei UL; Caruso, Geoffrey UL; Lemoy, Rémi

Scientific Conference (2021, May 28)

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See detailMetadiscourse by native and non-native English speakers: importance marking in lectures
Deroey, Katrien UL; Johnson, Jane Helen

Scientific Conference (2021, May 27)

This talk has a dual purpose. In addition to mapping the use of one type of metadiscourse, viz. importance markers, across ‘native’ and ‘English Medium Instruction’ (EMI) lecture corpora, we elaborate on ... [more ▼]

This talk has a dual purpose. In addition to mapping the use of one type of metadiscourse, viz. importance markers, across ‘native’ and ‘English Medium Instruction’ (EMI) lecture corpora, we elaborate on analytical issues related to studying metadiscourse in spoken and disciplinary discourse. ‘Importance markers’ (Deroey & Taverniers, 2012) are lexicogrammatical metadiscursive devices combining discourse organization with evaluation along a ‘parameter of importance or relevance’ (Thompson and Hunston, 2000, p. 24). In lectures, they help students identify key content, which is useful for allocating processing resources while listening to what are typically dense monologues that require processing in real time. This in turns is likely to benefit understanding, note-taking and retention. Comparing the use of importance markers in a single-discipline corpus of engineering lectures by ‘native’ speakers and EMI lecturers, our aim was to contribute to the limited insights into the linguistic features of EMI lecture discourse generally and metadiscourse important for lecture discourse organization and hence lecture listening, specifically. Both researchers independently identified potential importance markers manually in lectures 46 engineering lectures (364,542 words) delivered in the Italy, Malaysia, the UK, and New Zealand,. Agreed instances were tagged and the tagged corpus imported into Sketch Engine to facilitate further analysis. Overall, native speakers and EMI lecturers differed little in importance marker frequency, range, types, and lexemes. In both corpora, the predominant verb marker was V n/clause (e.g. remember they don't know each other). The main difference was the far more common use of the listener-oriented 2 pers pron V n/clause marker (you must understand how to apply this one) by the non-native speakers but this was largely due to idiolectic variation. Contrary to most corpus linguistic metadiscourse studies, we report the inevitable analytical difficulties when identifying and classifying metadiscourse. Issues include establishing a definition that is broad enough to capture the various realizations of a metadiscursive function, while not ‘opening the floodgates’ to include instances that are not representative or that render the study unfeasible. For us this included distinguishing between evaluation of discourse and ‘real world’ entities, excluding very frequent phrases that could be viewed as importance markers but in this discipline probably served another function, and establishing a continuum of highlighting ‘force’. These considerations necessitated careful manual analysis of a relatively small corpus, which however means that generalization are limited and idiolectic bias more likely. [less ▲]

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See detailFirst results of the iterative STEAM design process in 3D modelling and printing with pre-service teachers
Kreis, Yves UL; Haas, Ben; Lavicza, Zsolt

Scientific Conference (2021, May 27)

While we examined mathematical modelling of architectures with CAD software during the last years, we intended in our higher education courses in pre-service elementary school teachers' initial training ... [more ▼]

While we examined mathematical modelling of architectures with CAD software during the last years, we intended in our higher education courses in pre-service elementary school teachers' initial training to expand the complexity of the modelling tasks. In addition, our previous research results indicated a high difference between the quality and functionality of designs by students. Therefore, we investigated the design process in 3D modelling and printing. Based on the industrial iterative design process (e.g., design of a pen), we became aware of the importance of iterative process milestones, quality controls, discussions and peer evaluations. Therefore, we created a remote teaching course for pre-service teachers to design complex objects (e.g., functionality) and create learning settings and tasks based on an iterative design process concept. We will present the first results and reflections at this conference. [less ▲]

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See detailDevelopment of knowledge and subjectivity by analysis of teacher-movies
Weber, Jean-Marie UL

Scientific Conference (2021, May 22)

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See detailLinking Executive Functions and Math Intelligence in Preschool Children: A Meta-Analysis
Emslander, Valentin UL; Scherer, Ronny

Scientific Conference (2021, May 20)

Background: Executive functions (i.e., response inhibition, attention shifting, working memory updating) have shown to be related to the mathematical component of intelligence, which, in turn, is ... [more ▼]

Background: Executive functions (i.e., response inhibition, attention shifting, working memory updating) have shown to be related to the mathematical component of intelligence, which, in turn, is predictive of various competences later in life. While this relation has already been thoroughly researched in school students and adults, a comprehensive research synthesis on preschool children—a group for which the assessment of these constructs is more challenging—is still missing. Evidence on the differentiation of cognitive skills over time suggests a differential relation of the three executive functions with math intelligence in older but not in younger children. It remains unclear, however, whether and which one of the three executive functions is more closely related to math intelligence in preschool children. Further research gaps concern the measurement of both executive functions and math intelligence in preschool children, as they cannot complete reading- and writing-based questionnaires. Addressing this measurement challenge, a plethora of inventive measurements has been used to assess both cognitive skills. These measurement differences might also have an influence on the relation between executive functions and math intelligence. Objectives: With our meta-analysis, we aimed to clarify the relation between executive functions and math intelligence in preschool children. Further, we wanted to investigate the influence of different measurement methods on this relation and look into the specific links of inhibition, shifting, and updating with math intelligence more closely. Research questions: 1. To what extent are inhibition, shifting, and updating (as a composite and separately) related to math intelligence in preschool children? (Overall correlations) 2. Which sample, study, and measurement characteristics moderate this relation? (Heterogeneity and moderators) 3. How much variation in math intelligence do inhibition, shifting, and updating explain jointly? (Model testing) Methods: We examined the relation between executive functions and math intelligence for 268 effect sizes from 29 studies for a total sample of 25,510 preschool children. Specifically, we synthesized the corresponding correlations by means of three-level random-effects meta-analyses (RQ 1) and examined the study, sample, and measurement characteristics as possible moderators of this relation between EFs and math intelligence via mixed-effects modeling (RQ 2). Further, we performed meta-analytic structural equation modeling to investigate the joint and differential effects inhibition, shifting, and updating on math intelligence (RQ 3). Results: We found executive functions and math intelligence to correlate moderately in preschool children (r = .35). Investigating inhibition, shifting, and updating separately also revealed moderate average correlations to math intelligence (r = .30, r = .38 , and r = .36, respectively). While we did not find age to explain significant amounts of heterogeneity, four measurement characteristics moderated the relation between executive function and math intelligence. When considered jointly through meta-analytic structural equation modeling, the relations of inhibition, shifting, and updating to math intelligence were similar. Conclusions and Implications: By presenting evidence for a significant relation between executive functions and math intelligence also in preschool children, our findings contribute to the discussion on the differentiation of cognitive skills. They highlight the importance of considering measurement characteristics when researching executive functions and math intelligence. Further, we could not confirm that inhibition, shifting, and updating are differentially related to math intelligence. Further research is needed to clarify the impact of age on the relation between executive functions and math intelligence. [less ▲]

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See detailTable ronde : comment faire réseau autour des archives du web ?
Schafer, Valerie UL

Scientific Conference (2021, May 17)

Table ronde : comment faire réseau autour des archives du web ? Intervenants : Emmanuelle Bermès (Bibliothèque nationale de France), Dominique Cardon (medialab, Sciences Po), Stéphanie Groudiev (Campus ... [more ▼]

Table ronde : comment faire réseau autour des archives du web ? Intervenants : Emmanuelle Bermès (Bibliothèque nationale de France), Dominique Cardon (medialab, Sciences Po), Stéphanie Groudiev (Campus Condorcet), Valérie Schafer (Université du Luxembourg) [less ▲]

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See detailDigital Cultural Heritage and the Politics of Digitisation
Zaagsma, Gerben UL

Scientific Conference (2021, May 11)

This talk deals with a question that is becoming increasingly important for historians who work with digitised cultural heritage: what are the politics of digitisation and what are its implications for ... [more ▼]

This talk deals with a question that is becoming increasingly important for historians who work with digitised cultural heritage: what are the politics of digitisation and what are its implications for historical research? Is the often-lauded democratising potential of digitisation also offset by challenges, inherent in selection processes that might privilege the digitisation of heritage corresponding to existing national master narratives, the availability of funding and/or the priorities set by cultural policies and certain research agendas? How does transnational heritage fit into this picture when most digitisation projects are, in one way or another, nationally framed? What biases can digital archives introduce in our work and how does that differ from issues of bias and selection in the ‘paper’ archive? A key point to highlight is that professional historians can and should be more open to learn from the experience of digital archivists and librarians who are at the forefront of the digital turn in heritage wsk. the talk will conclude with a brief plea and suggestion for transparancy guidelines for digital resources. [less ▲]

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See detailMultiple vulnerabilities: The effects of neighborhood structural changes upon older residents' mental health and perceptions of the broader community
Settels, Jason UL

Scientific Conference (2021, May 06)

Aims: Neighborhoods’ structural conditions are consequential for their social circumstances and residents’ well-being. Neighborhood effects might be accentuated among older residents because their daily ... [more ▼]

Aims: Neighborhoods’ structural conditions are consequential for their social circumstances and residents’ well-being. Neighborhood effects might be accentuated among older residents because their daily activities and social lives are more confined to their immediate communities. This study examines how changing neighborhood socioeconomic disadvantage affects older residents’ depression and stress, as well as perceptions of neighborhood context. Methods: This study employed waves 2 (2010-2011) and 3 (2015-2016) of the National Social Life, Health, and Aging Project survey (N=2,357) and fixed-effects linear regression models to study these relationships. Results: While rising neighborhood socioeconomic disadvantage was associated with more depression and stress, it was negatively associated with overall neighborhood social capital and neighborhood social cohesion, and was only associated with lower perceptions of neighborhood safety among respondents who relocated to new neighborhoods. Conclusions: Beyond cross-sectional associations, changing neighborhood socioeconomic disadvantage is associated with changes in mental health and perceptions of neighborhood social context. [less ▲]

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See detailThe Hormones of Dark Souls: The Dark Tetrad and Violent Gaming Effects on Aggression, Cortisol and Testosterone Levels
Wagener, Gary; Felten, Andrea; Melzer, André UL

Scientific Conference (2021, May)

Although playing violent video games may lead to detrimental effects on cognition, emotion and behavior, the role of hormones and its interplay with personality characteristics is not well understood. An ... [more ▼]

Although playing violent video games may lead to detrimental effects on cognition, emotion and behavior, the role of hormones and its interplay with personality characteristics is not well understood. An experimental study tested how playing a violent versus non-violent video game affects cortisol and testosterone levels, whether these hormonal changes increase implicit aggressive cognition, and whether Dark Tetrad personality traits moderate these effects. In an experimental design, 54 male participants played either a violent or a non-violent video game. Participants provided salivary samples at the beginning of the experiment (T1), right after 25 minutes of gameplay (T2), and 20 minutes after that (T3). There were no significant effects on implicit aggressive cognition. However, participants in the violent game condition had a significant decrease in cortisol levels (T1 to T2) and a significant negative trend in cortisol levels from T1 to T3. Participants with higher Machiavellianism scores in the violent condition had a stronger decrease in cortisol (T1 to T2). In contrast, participants with higher Machiavellianism scores in the non-violent condition had a higher increase in cortisol (T1 to T2). The present findings illustrate the complex interplay between personality, hormones, and game content, thus specifying current notions on violent game effects. [less ▲]

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See detailMotivation to Play Scale (MOPS): Measuring Gaming Motivation With a Comprehensive Instrument
Holl, Elisabeth UL; Wagener, Gary Lee UL; Melzer, André UL

Scientific Conference (2021, May)

With the growing interest in gaming, the motivation why people play has become a focus of research. Scales assessing gaming motivation are mostly based on either motivation theories or on self-constructed ... [more ▼]

With the growing interest in gaming, the motivation why people play has become a focus of research. Scales assessing gaming motivation are mostly based on either motivation theories or on self-constructed items adapted to specific genres. Despite the amount of existing scales, measures often lack validation or leave out important and novel motives. Therefore, the Motivation to Play Scale (MOPS), a work-in-progress project, aims at identifying a holistic instrument validated by systematically collecting and evaluating already existing items. A first evaluation survey (N = 555) resulted in preliminary version of the MOPS measuring 14 gaming motives (e.g., competition, escapism) using 59 items (α = .94). [less ▲]

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See detailHyperparameter Optimization for Neural Network based Taxi Demand Prediction
Schwemmle, Nicola Paul UL; Ma, Tai-Yu

Scientific Conference (2021, May)

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See detailConsiderations on Dynamic Pricing in Carsharing Operations
Giorgione, Giulio UL; Viti, Francesco UL

Scientific Conference (2021, May)

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See detailOffice Agents: Personal Office Vitality Sensors with Intent
Stamhuis, Sjoerd; Brombacher, Hans; Vos, Steven et al

Scientific Conference (2021, May)

In smart office buildings, almost every aspect of the environment can be assessed and adjusted by sensors. Yet employees rarely have access to the data collected to act upon it. It is also unclear what ... [more ▼]

In smart office buildings, almost every aspect of the environment can be assessed and adjusted by sensors. Yet employees rarely have access to the data collected to act upon it. It is also unclear what they would find meaningful to follow the recommendations on healthy work conditions and behavior, while productivity is the priority. The Office Agents are a set of artefacts placed on the employee’s desk, which capture data about the office environment. Air quality, sound level, light exposure, productivity, and physical activity level are measured to provide office workers with feedback on the ‘best’ working conditions. Using speculative design and Objects with Intent, the employee engages in a negotiation with the Office Agents based on the office ecosystem. Through this project and interactivity session, we open a debate on the use of sensors in office environments and the stakes around office vitality from the viewpoint of the employees. [less ▲]

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See detailAn equilibrium model for Mobility-as-a-Service
Bandiera, Claudia UL; Connors, Richard UL; Viti, Francesco UL

Scientific Conference (2021, May)

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See detailVirtual reality gaming for pain distraction - Investigation of attentional and psychophysiological effects
Holl, Elisabeth UL; Rischer, Katharina Miriam UL; Battistutta, Layla UL et al

Scientific Conference (2021, May)

Virtual reality has been shown to be a powerful method to divert attention away from pain (Malloy & Milling, 2010) and has been used successfully to temporally relieve patients from pain in clinical ... [more ▼]

Virtual reality has been shown to be a powerful method to divert attention away from pain (Malloy & Milling, 2010) and has been used successfully to temporally relieve patients from pain in clinical settings. However, little is known about the underlying attentional processes involved in pain processing in virtual reality. Therefore, as one of the first studies, this project investigates the role of especially cognitive factors influencing distraction from pain. N = 90 healthy participants played the video game Subnautica in two virtual reality conditions (high vs. low cognitive load). To assess the distraction effect, pain thresholds and psychophysiological measures were assessed during play. Additionally, executive functions and self-reported measures on, e.g., presence, simulation sickness and pain-related subjects were assessed. Results suggest that interactive virtual reality games are a potential tool to alter pain processing, regardless of the level of cognitive load. [less ▲]

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See detailThe impact of COVID-19 in the migration area in EU and OECD countries
Sommarribas, Adolfo UL; Sheridan, Anne

Scientific Conference (2021, April 30)

The European Migration Network (EMN) and the Organisation for Economic Co-operation and Development (OECD) have published updated information on the impact of COVID-19 in the migration area. The new ... [more ▼]

The European Migration Network (EMN) and the Organisation for Economic Co-operation and Development (OECD) have published updated information on the impact of COVID-19 in the migration area. The new Umbrella Inform completes the joint EMN and OECD Inform series between on the impact of COVID-19 on migration and asylum in the EU Member States and non-EU OECD countries throughout 2020. Updates include changes in border procedures, provision of COVID-19 related healthcare services to migrants, the shifting landscape of the labour market, international protection, international students, and return issues. [less ▲]

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See detailTeacher education in translanguaging to achieve social justice?
Aleksic, Gabrijela UL

Scientific Conference (2021, April 29)

Multilingual and multicultural settings are an ever-growing reality all over the world. The potential of migrant’s multilingual and multicultural heritage can be unfolded if the citizens of the host ... [more ▼]

Multilingual and multicultural settings are an ever-growing reality all over the world. The potential of migrant’s multilingual and multicultural heritage can be unfolded if the citizens of the host country are open to it. However, immigrants are often confronted with cultural and linguistic supremacy while nationals of the host country are afraid of a loss or ‘dilution’ of their existing culture and language. The increase of multilingual and multicultural settings as well as the difficulty in overcoming this fear impelled scholars of various sciences to conduct extensive research on the issues of marginalization and cultural imperialism. Researchers in educational sciences, most notably Li Wei and Ofelia García, have opposed the linguistic and cultural hegemony in education through the promotion of translanguaging pedagogy. Translanguaging as a term describes both the natural discourse of bi- and multilingual people through the use of their entire linguistic repertoire and the pedagogy that makes use of these unique linguistic repertoires of bi- and multilingual students to foster learning, comprehension and academic achievement (Celic & Selzer, 2011; Otheguy, García, & Reid, 2015). The use of a translanguaging pedagogy in multicultural and multilingual settings proves beyond useful to disrupt linguistic hegemonies and socio-politically constructed named languages by giving bi- and multilingual students a voice and space to prosper, learn and develop their bi- and multilingual identities (García, 2019). The need of a translanguaging pedagogy becomes necessary in countries such as the small trilingual Grand-Duchy of Luxembourg. The culturally and linguistically highly diverse country with its three official languages (Luxembourgish, French, and German) sees a staggering gap between the school achievements of native and non-native children, forcing even the government to implement mandatory multilingual education in preschools (PISA, 2019). The development of Luxembourgish, familiarization of French and valorization of the home languages of the children have become an official requirement for preschool teachers since 2017. Given that 64 % of four-year olds in Luxembourg do not speak Luxembourgish at home, multiple projects and courses have launched to aid teachers in the practical application of this new law (MENJE, 2018). Thus, we developed our professional development course in translanguaging for preschool teachers in Luxembourg to support their work with multilingual children and their families. The disruption of the linguistic hegemony in Luxembourgish classrooms was implicitly carried through three distinct objectives of the project : (1) 18-hours professional development course in translanguaging to 38 preschool teachers from June to December 2019 divided into 7 sessions (multilingual ecology, home-school collaboration, multilingual brain, multilingual oracy and literacy), (2) active inclusion of children’s families to foster home-school collaboration through parents’ questionnaires and interviews and the promotion of partnerships between families and teachers in the course, and (3) support of children’s linguistic, socio-emotional and cognitive development and engagement in the classroom through early literacy and numeracy tests in the school and home languages, and video observations of classroom activities and interactions. As the goal of social justice was thematized implicitly throughout the course given that most teachers are monolingually and monoculturally biased to be confronted with the topic of cultural imperialism and linguistic hegemony head-on, we tried to assess the teachers change in attitudes through the use of focus group and questionnaires at the beginning and the end of the course. This is the present focus. As the voluntary participation in a translanguaging course would already suggest, the preliminary results of our project show an overall openness of the participating teachers towards other languages and cultures and an awareness of the need of inclusion of the home languages of the children for the benefit of their development and well-being. The results from teacher questionnaires show that there was a significant increase in positive attitudes towards multilingualism (t(35) = -3.83, p < .001) and significant decrease in exclusive interest in Luxembourgish (t(35) = 3.45, p < .001), after the course. This openness and awareness do, however, not automatically translate into social justice as only a very small number of teachers was open to the idea of disrupting linguistic hegemonies and in the video observations unconsciously put all the languages at a same level. The majority of the participants did change their views about their multilingual students (from deficit to richness) realizing that the inclusion of children’s home languages and cultures is a valuable tool for comprehension, learning and socio-emotional development instead of only being a stepping-stone until full mastery of Luxembourgish is achieved. Yet, their strong focus on the development of Luxembourgish and its absolute untouchable status as the language that receives the most recognition did not change. Beside the linguistic superiority of Luxembourgish, even linguistic hierarchies became blatantly obvious during video observations, showing just how much work still needs to be done for teachers to truly interiorize the potentially harmful consequences of linguistic hegemonies and hierarchies. It is our responsibility as researchers to continue to work with teachers, and involve parents, children, and their communities. Change in attitudes and raise of social responsibility and justice is a process. At this point of our project, we see it in fragments, and it is important for all of us not to disrupt it. If we do, the networks that we created will dissolve and the positive impact on multilingual children’s lives and their families could disappear. Therefore, we see two opportunities to continue the work on translanguaging pedagogy by: (1) organizing an additional training for teachers in which we will analyze the video observations to focus on power relations, and (2) organizing a teacher/parent conference in which we will facilitate the discussion on translanguaging pedagogy. Educational and social contexts are rapidly changing and we believe that our professional development course in translanguaging pedagogy is contributing to the process of adaptation to these changes by explicitly inviting us to be more socially responsible and fair. The Conference will give us the opportunity to present the final results and future directions of the project. References Celic, C., & Selzer, K. (2011). Translanguaging: A CUNY-NYSIEB Guide for Educators. New York: CUNY-NYSIEB. García, O. (2019). Translanguaging: a coda to the code?, Classroom Discourse, 10(3-4), 369-373, doi: 10.1080/19463014.2019.1638277 Ministry of National Education, Childhood and Youth [MENJE]. (2018). Les chiffres clés de l'Éducation nationale: statistiques et indicateurs - Année scolaire 2016-2017 [Key numbers of the national education: statistics and indicators – School year 2016-20167]. Retrieved from http://www.men.public.lu/fr/actualites/publications/themes-transversaux/statistiques-analyses/chiffres-cles/index.html OECD (2019). PISA 2018 Results (Volume I): What students know and can do. PISA, OECD Publishing: Paris. doi: https://doi.org/10.1787/5f07c754-en Otheguy, R., García, O., & Reid, W. (2015). Clarifying translanguaging and deconstructing named langauges: A perspective from linguistics. Applied Linguistic Review, 6(3), 281–307. [less ▲]

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See detailDefining a Manageable, Dynamic Chemical Space for Exposomics
Schymanski, Emma UL

Scientific Conference (2021, April 27)

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See detailMulti-GNSS Slant Wet Delay Retrieval Using Multipath Mitigation Maps
Hunegnaw, Addisu UL; Ejigu, Yohannes Getachew; Teferle, Felix Norman UL et al

Scientific Conference (2021, April 24)

The conventional Global Navigation Satellite System (GNSS) processing is typically contaminated with errors due to atmospheric variabilities, such as those associated with the mesoscale phenomena. These ... [more ▼]

The conventional Global Navigation Satellite System (GNSS) processing is typically contaminated with errors due to atmospheric variabilities, such as those associated with the mesoscale phenomena. These errors are manifested in the parameter estimates, including station coordinates and atmospheric products. To enhance the accuracy of these GNSS products further, a better understanding of the local-scale atmospheric variability is necessary. As part of multi-GNSS processing, station coordinates, carrier phase ambiguities, orbits, zenith total delay (ZTD) and horizontal gradients are the main parameters of interest. Here, ZTD is estimated as the average zenith delay along the line-of-sight to every observed GNSS satellite mapped to the vertical while the horizontal gradients are estimated in NS and EW directions and provide a means to partly account for the azimuthally inhomogeneous atmosphere. However, a better atmospheric description is possible by evaluating the slant path delay (SPD) or slant wet delay (SWD) along GNSS ray paths, which are not resolved by ordinary ZTD and gradient analysis. SWD is expected to provide better information about the inhomogeneous distribution of water vapour that is disregarded when retrieving ZTD and horizontal gradients. Usually, SWD cannot be estimated directly from GNSS processing as the number of unknown parameters exceeds the number of observations. Thus, SWD is generally calculated from ZTD for each satellite and may be dominated by un-modelled atmospheric delays, clock errors, unresolved carrier-phase ambiguities and near-surface multipath scattering. In this work, we have computed multipath maps by stacking individual post-fit carrier residuals incorporating the signals from four GNSS constellations, i.e. BeiDou, Galileo, Glonass and GPS. We have selected a subset of global International GNSS Service (IGS) stations capable of multi-GNSS observables located in different climatic zones. The multipath effects are reduced by subtracting the stacked multipath maps from the raw post-fit carrier phase residuals. We demonstrate that the multipath stacking technique results in significantly reduced variations in the one-way post-fit carrier phase residuals. This is particularly evident for lower elevation angles, thus, producing a retrieval method for SWD that is less affected by site-specific multipath effects. We show a positive impact on SWD estimation using our multipath maps during increased atmospheric inhomogeneity as induced by severe weather events. [less ▲]

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See detailSoziale Kohäsion und Exklusion im luxemburgischen Wohnungswesen
Dujardin, Céline UL

Scientific Conference (2021, April 23)

Kontext und Problematik Im Großherzogtum Luxemburg ist die Nachfrage an bezahlbarem Wohnraum deutlich höher als das bestehende Angebot (Manet, 2017; Reuter, 2017). Für die finanziell benachteiligten ... [more ▼]

Kontext und Problematik Im Großherzogtum Luxemburg ist die Nachfrage an bezahlbarem Wohnraum deutlich höher als das bestehende Angebot (Manet, 2017; Reuter, 2017). Für die finanziell benachteiligten Haushalte stellen die Wohnkosten von ungefähr 40% des verfügbaren Budgets eine wesentliche und sehr hohe Ausgabe dar. Generell kann sogar eine Verschärfung des Armutsrisikos durch die Wohnkosten beobachtet werden (Ametepe, 2019). Die luxemburgische Bevölkerung setzt sich aus den folgenden Nationalitäten zusammen: 52,5% Luxemburger, wobei etwas mehr als eine Person von 10 eine doppelte Staatsangehörigkeit besitzt und 40,1% Nationalitäten aus den weiteren 27 EU-Mitgliedsstaaten, wobei 15,6% Portugiesen den größten Anteil darstellen (Klein & Peltier, 2019). Antworten und Herausforderungen der Sozialen Arbeit Der wahrscheinlich größte Anteil der Obdachlosenhilfe besteht europaweit aus niederschwelligen Dienstleistungen, die grundlegende Unterstützung außerhalb des Wohnungswesens bieten oder aus der Bereitstellung von Notfallunterkunft/vorübergehender Unterbringung. Im Gegensatz dazu sind Dienste, die obdachlosen Menschen sofort ein dauerhaftes Zuhause bieten, in den meisten Ländern nur bis zu einem gewissen Grad präsent (Pleace, Baptista, Benjaminsen & Busch-Geertsema, 2018). In Anlehnung an die bestehenden Vergleichsstudien des European Observatory on Homelessness sowie an die europäische Typologie für Wohnungslosigkeit ETHOS wird auch das entsprechende Handlungsfeld der Sozialen Arbeit in Luxemburg durchleuchtet. Anhand dieser Darstellung folgt eine Diskussion über die bestehenden Herausforderungen für Wissenschaft, Politik und Praxis. Diskussion und Ausblick Soziale Kohäsion wird gerne als Zielsetzung und Antwort auf die Problematiken des luxemburgischen Wohnungswesens aufgeführt. Nach Habermeier (2005) umfasst die soziale Kohäsion den Ist-Zustand des Zusammenhalts einer Gemeinschaft – von der Paarbeziehung bis zur Gesamtgesellschaft – und nicht seine Entstehung. Die soziale Kohäsion als Ziel hingegen ist ein Soll-Zustand, der mehrere Fragen aufwirft, z.B. ob soziale Kohäsion planbar ist oder sich verstärken lässt, ob sie immer ein theoretischer Idealtyp der Gesellschaft bleibt oder ob die Soziale Arbeit soziale Kohäsion unterstützen kann ohne ihre Klienten in ein Abhängigkeitsverhältnis zu setzen. Bibliographie Ametepe, F. (2019). Le logement, amplificateur des inégalités au Luxembourg. Regards, 18(8). Disponible sous : https://statistiques.public.lu/catalogue-publications/regards/2019/PDF-18-2019.pdf Habermeier, R. (2005). Soziale Kohäsion. Hitotsubashi Journal of Social Studies, 37(1), 1-17. Klein, C. & Peltier, F. (2019). 93% de la population luxembourgeoise sont des ressortissants de l’UE-28. Regards, 7(5). Disponible sous : https://statistiques.public.lu/catalogue-publications/regards/2019/PDF-07-2019.pdf Manet, B. (2017). Schlimmer als die Bewerbung für einen Job? Die Facebook-WG-colocation-à louer-Welt Luxemburgs. Forum für Politik, Gesellschaft und Kultur, 372, 31. Pleace, N., Baptista, I., Benjaminsen, L. & Busch-Geertsema, V. (2018). Homelessness Services in Europe. EOH Comparative Studies on Homelessness. Brussels: European Observatory on Homelessness. Reuter, J.-P. (2017). Wohnst du schon oder suchst du noch? Über Schwierigkeiten adäquat wohnen zu dürfen und den Versuch Lösungen zu finden. Forum für Politik, Gesellschaft und Kultur, 372, 24-26. [less ▲]

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See detailGender Diversity Practices in Talent Management: An Exploratory Study in the Space Industry in Luxembourg
Usanova, Ksenia UL

Scientific Conference (2021, April 22)

This study contributes to the conceptual and empirical understanding of how gender diversity management (GDM) is integrated into talent management (TM). Following the grounded theory, we interviewed 40 HR ... [more ▼]

This study contributes to the conceptual and empirical understanding of how gender diversity management (GDM) is integrated into talent management (TM). Following the grounded theory, we interviewed 40 HR managers and talents from the space industry in Luxembourg. We provide a nuanced picture of what attitude on the GDM in TM organizations have, what strategies and practices they conduct, and how they differ from each other. Based on these differences, we developed three types of GDM integration to TM and explained the talents’ view on this issue. This study is the first empirical investigation of GDM in TM in the space industry that integrates both: the TM executives’ and TM receivers’ views on gender equality in TM. [less ▲]

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See detailResults of the project TRANSLA
Aleksic, Gabrijela UL; Bebić-Crestany, Džoen Dominique UL

Scientific Conference (2021, April 21)

In this Conference, we presented the the results from the project TRANSLA, with the focus on the teachers. According to the results from the questionnaires that were administered before and after the ... [more ▼]

In this Conference, we presented the the results from the project TRANSLA, with the focus on the teachers. According to the results from the questionnaires that were administered before and after the professional development course in translanguaging pedagogy, there was a significant increase in teachers' positive attitudes towards multilingualism and the use of children's home languages, and a significant decrease of focus on Luxembourgish only, after the course. The focus groups before and after the course and the interviews after the course showed that there was a raise of awareness of the link between implementation of home languages and children's well-being, positive change in deficit perspective of children, and positive change in attitudes (however, for some still firm monolingual stance). Finally, the teachers shared that there was a positive change in their practice (however, for some too time-consuming). [less ▲]

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See detailStudying transnational events through web archives
Schafer, Valerie UL

Scientific Conference (2021, April 20)

This short presentation was a mid-term feedback on the collective work of WG2 that I lead within the WARCnet project. I especially underlined the research we conducted through an internal datathon we ... [more ▼]

This short presentation was a mid-term feedback on the collective work of WG2 that I lead within the WARCnet project. I especially underlined the research we conducted through an internal datathon we organised in January 2021 and which used seed lists, derived data and metadata. [less ▲]

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See detailPanel Organiser: Peripheries at the Centre: Borderland Schooling in Interwar Europe
Venken, Machteld UL

Scientific Conference (2021, April 17)

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See detailPresenter: Peripheries at the Centre: Borderland Schooling in Interwar Europe
Venken, Machteld UL

Scientific Conference (2021, April 17)

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See detailThird-country National Labour Workers' Mobility to and inside Europe during the COVID-19 Pandemic
Nienaber, Birte UL; Sommarribas, Adolfo UL

Scientific Conference (2021, April 15)

This presentation analyses the situation generated by the Covid-19 pandemic crisis regarding border closures and the reintroduction of temporary border controls at the internal borders in the EU and the ... [more ▼]

This presentation analyses the situation generated by the Covid-19 pandemic crisis regarding border closures and the reintroduction of temporary border controls at the internal borders in the EU and the impact that this border closures and the pandemic had on third-country nationals living or visiting the European Union. [less ▲]

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See detailMapping citizens’ reflections and perceptions of place-based experiences in the time of COVID-19
Jones, Catherine UL

Scientific Conference (2021, April 14)

Using a Citizen Science Approach, the ZesummenMaps project explores the emergent spatial interactions of our towns, cities and rural areas that arise from the COVID-19 pandemic and social distancing and ... [more ▼]

Using a Citizen Science Approach, the ZesummenMaps project explores the emergent spatial interactions of our towns, cities and rural areas that arise from the COVID-19 pandemic and social distancing and confinement policies in Luxembourg and the Greater Region. Citizens (residents, students, cross-border workers) reflect on their personal experiences of place during the crises. They contribute thoughts and perceptions through a collaborative community-mapping interface. This provides a foundation to explore, evaluate and understand the evolving perceptions and uses of public spaces, infrastructures and physical environments. Thus, creating an evidence-base of emerging spatial interactions to inform understanding of the impact of the "bleift doheem" policy (stay at home, confinement, lockdown) related to our perceptions and uses of our towns, cities and rural areas. [less ▲]

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See detailCheminformatics and the Exposome in Health and Disease
Schymanski, Emma UL; Aurich, Dagny UL

Scientific Conference (2021, April 10)

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See detailDesigning and managing an online, personalised research writing course for postgraduates
Deroey, Katrien UL; Skipp, Jennifer

Scientific Conference (2021, April 08)

This paper describes and evaluates an online research article writing course at the University of Luxembourg. Participants were self-referred PhD students from different disciplines. The aim of the ten ... [more ▼]

This paper describes and evaluates an online research article writing course at the University of Luxembourg. Participants were self-referred PhD students from different disciplines. The aim of the ten-week course is to improve insight into the structural, stylistic and rhetorical features of research articles as well as the writing and publication process. It also provides tools for students to develop their own writing. We will situate our course rationale and design within the literature, then compare these to both the reality of managing and delivering the course online as well as participants’ feedback as reflected in 30 surveys. We will focus on the following results: • The practicability of including multiple pedagogical elements in an online course was challenging. We wanted to integrate both independent and collaborative work, production and reflection. However, results of the surveys and our own experience show that the multiplicity of elements was often seen as complex and difficult to manage and multiple submission deadlines problematic. • Students favoured working alone over working together and uptake of writing groups (Aitchison, 2009) was poor. Multi-disciplinary peer groups were, however, positively reviewed (cf. Hyland, 2012). • The flexibility of the online environment was seen as positive, yet many reported problems finding time to write. However, participants did see the benefit in having to write regularly. Tools of reflection did not score highly. • The personalisation of learning input scored highly in the survey, but this was time-consuming to implement. Whilst instructor-student consultations were offered to further personalise feedback, these had a low uptake (8/30). • We wanted to create a course which included guidance on the writing and publication process (Starfield & Paltridge, 2016) as well as increased genre awareness (Swales, 1990) to prepare students for publication. However, tasks on language and structure were rated more useful by more students than this content. • More participants commented on the benefit of working through their language issues in live sessions over learning how to address language issues through the corpus-tools that were integrated into the course (Charles, 2018). Through sharing this information, we hope to generate a discussion with the audience about ways to optimise online writing courses and manage some of the problems associated with online delivery. Aitchison, C. (2009). Writing groups for doctoral education. Studies in Higher Education, 34(8), 905-916. Charles, M. (2018) Corpus-assisted editing for doctoral students: More than just concordancing. Journal of English for Academic Purposes, 36, 15-26. Charles, M. (2018). Using do-it-yourself-corpora in EAP: A tailor-made resource for teachers and students. Teaching English for Specific and Academic Purposes, 6(2), 217-224. Hyland, K. (2012). Disciplinary Identities: Individuality and Community in Academic Discourse. Cambridge: Cambridge University Press. Nesi, H. & Gardener, S. (2012). Genres across the disciplines: Student writing in higher education. Cambridge: Cambridge University Press. Paltridge, B., & Starfield, S. (2016). Getting published in academic journals: Navigating the publication process. Ann Arbor: University of Michigan Press. Swales, J. (1990). Genre analysis: English in academic and research settings. Cambridge: Cambridge University Press. [less ▲]

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See detailDesigning EMI lecturer training programmes: what and how
Deroey, Katrien UL

Scientific Conference (2021, April 08)

This workshop will provide insights into designing and delivering English Medium Instruction (EMI) lecturer training. Although universities have been slow to organize EMI lecturer support, an increasing ... [more ▼]

This workshop will provide insights into designing and delivering English Medium Instruction (EMI) lecturer training. Although universities have been slow to organize EMI lecturer support, an increasing awareness of the challenges faced by EMI lecturers and their students now appears to be boosting the demand for EMI lecturer training and support initiatives. Consequently, EAP practitioners can increasingly expect requests to design and deliver such programmes. However, the efficient design and delivery of EMI lecturing training and support is a complex challenge. First, the EMI context is very varied and initiatives should be adapted to the local cultural, educational, linguistic and institutional contexts (Herington, 2020; Martinez & Fernandes, 2020; Tuomainen, 2018). Second, most literature highlights the need for language, pedagogical and intercultural components (e.g. Fortanet Gómez, 2020). Third, we need to be sensitive to lecturers’ attitudes towards EMI and EMI training (Tsui, 2018). Fourth, there are practical considerations such as the timely provision of support (Guarda & Helm, 2017), promoting participation, facilitating learning transfer to lectures, and optimizing the support in view of what are often heterogeneous participant groups in terms of English proficiency, (EMI) lecturing experience and discipline (Ball & Lindsay, 2013). Finally, the design of these programmes typically needs to happen with very limited institutional resources, few (if any) published materials and relatively little published research on lecture discourse and EMI lecturer training. The workshop will start with an overview of published training initiatives with their reported successes and challenges (Deroey, 2021). Next, participants will work in small groups, brainstorming ideas for an EMI support programme based on a brief we have recently received at the multilingual University of Luxembourg Language Centre. Finally, these proposals will be discussed in the whole group and key ideas summarized to consolidate the insights gained. Ball, P., & Lindsay, D. (2013). Language demands and support for English-medium instruction in tertiary education. Learning from a specific context In A. Doiz, D. Lasagabaster, & J. M. Sierra (Eds.), English-medium instruction at universities: Global challenges (pp. 44-61). Bristol: Multilingual Matters. -Deroey, K. L. B. (2021). Lecturer training for English Medium Instruction: what and how? In B. D. Bond, A. & M. Evans (Ed.), Innovation, exploration and transformation. Proceedings of the 2019 BALEAP Conference. Reading: Garnet. -Fortanet Gómez, I. (2020). The dimensions of EMI in the international classroom: training teachers for the future university. In M. Del Mar Sánchez-Pérez (Ed.), Teacher training for English-medium instruction in higher education (pp. 1-20). Hershey: IGI Global. -Guarda, M., & Helm, F. (2017). A survey of lecturers’ needs and feedback on EMI training. In K. Ackerley, M. Guarda, & F. Helm (Eds.), Sharing perspectives on English-medium instruction (pp. 167-194). Bern: Peter Lang. -Herington, R. (2020). Observation as a tool to facilitate the professional development of teaching faculty involved in English as a Medium of Instruction: trainer and trainee perspectives. In M. L. Carrió-Pasto (Ed.), Internationalising Learning in Higher Education (pp. 65-82). Hershey: IGI Global. -Martinez, R., & Fernandes, K. (2020). Development of a teacher training course for English medium instruction for higher education professors in Brazil. In M. Del Mar Sánchez-Pérez (Ed.), Teacher Training for English-Medium Instruction in Higher Education (pp. 125-152). Hershey: IGI Global. -Tuomainen, S. (2018). Supporting non-native university lecturers with English-medium instruction. Journal of Applied Research in Higher Education. 10(3), 230-242. -Tsui, C. (2018). Teacher efficacy: a case study of faculty beliefs in an English-medium instruction teacher training program. Taiwan Journal of TESOL, 15(1), 101-128. [less ▲]

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See detailSocial Inequality in Education: Academic Achievement of First-, Second-, and Later-Generation Immigrant Students in Luxembourg
Rivas, Salvador UL; Reichel, Yanica UL; Krämer, Charlotte UL et al

Scientific Conference (2021, April 08)

Students with immigrant backgrounds are often disadvantaged in public educational systems. In Luxembourg, about 50% of primary and secondary school students have an immigrant background, most notably from ... [more ▼]

Students with immigrant backgrounds are often disadvantaged in public educational systems. In Luxembourg, about 50% of primary and secondary school students have an immigrant background, most notably from Italy, the former Yugoslavia and Portugal. Using data from Luxembourg’s national school monitoring program, we investigate and document for the first time, existing and emerging differences in academic achievement among different immigrant generations of students. Our results indicate that student achievement in Math, German and French is differentially affected by immigrant generational status and language spoken at home. In addition, we find secondary effects of student social background. [less ▲]

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See detailTransition from traditional to hybrid to online courses for pre-service elementary school teachers at the University of Luxembourg: STEAM integrated approach in the project MathEduc @ BScE
Kreis, Yves UL; Haas, Ben

Scientific Conference (2021, April 07)

During the past year, technology has started enabling new forms of teaching and learning in higher education in Luxemburg. Thus, to be able to work more closely with elementary school pre-service teachers ... [more ▼]

During the past year, technology has started enabling new forms of teaching and learning in higher education in Luxemburg. Thus, to be able to work more closely with elementary school pre-service teachers, we shifted our mathematics education course during the past years to flipped classroom approaches and worked with synchronous and asynchronous teaching on- and off-campus modes. Furthermore, due to the restrictions of the COVID-19 pandemic, we decided to shift our teaching to entirely online flipped classroom approaches together with outdoor mathematical trails with STEAM integrated assessments. This final shift to a fully online flipped classroom, with self-paced, student-centred teachings and learnings, showed strong positive effects on pre-service elementary school teachers in mathematics teaching. In this presentation, we will outline results of this transition period and describe results from different studies. [less ▲]

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See detailThe STEAM skilled child: How children can learn to apply STEAM skills to their living environment
Haas, Ben; Kreis, Yves UL; Lavicza, Zsolt

Scientific Conference (2021, April 01)

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See detailJoint Beam-Hopping Scheduling and Power Allocation in NOMA-Assisted Satellite Systems
Wang, Anyue UL; Lei, Lei UL; Lagunas, Eva UL et al

Scientific Conference (2021, March 31)

In this paper, we investigate potential synergies of non-orthogonal multiple access (NOMA) and beam hopping (BH) for multi-beam satellite systems. The coexistence of BH and NOMA provides time-power-domain ... [more ▼]

In this paper, we investigate potential synergies of non-orthogonal multiple access (NOMA) and beam hopping (BH) for multi-beam satellite systems. The coexistence of BH and NOMA provides time-power-domain flexibilities in mitigating a practical mismatch effect between offered capacity and requested traffic per beam. We formulate the joint BH scheduling and NOMA-based power allocation problem as mixed-integer nonconvex programming. We reveal the xponential-conic structure for the original problem, and reformulate the problem to the format of mixed-integer conic programming (MICP), where the optimum can be obtained by exponential-complexity algorithms. A greedy scheme is proposed to solve the problem on a timeslot-by-timeslot basis with polynomial-time complexity. Numerical results show the effectiveness of the proposed efficient suboptimal algorithm in reducing the matching error by 62.57% in average over the OMA scheme and achieving a good trade-off between computational complexity and performance compared to the optimal solution. [less ▲]

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See detailTable Ronde «Zesumme mat de Kanner duerch Corono-Zaiten»
Kirsch, Claudine UL; Engel de Abreu, Pascale UL

Scientific Conference (2021, March 30)

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See detailMapping wartime Jewish diaries and their postwar trajectories
Zaagsma, Gerben UL

Scientific Conference (2021, March 26)

If Auschwitz has become the key symbol of the Holocaust, then the fate of Anne Frank and her family has become symbolic of Jewish wartime experiences in Nazi-occupied Europe, and Anne’s diaries of Jewish ... [more ▼]

If Auschwitz has become the key symbol of the Holocaust, then the fate of Anne Frank and her family has become symbolic of Jewish wartime experiences in Nazi-occupied Europe, and Anne’s diaries of Jewish diary writing. As such they are constitutive of people’s ideas about the Holocaust and the Jewish experience during World War II. Indeed, the Anne Frank diaries are intrinsic to the development of postwar Holocaust memory. Yet we know that the case of Anne Frank was far from representative, and insofar as scholars strive to recover the full range of Jewish wartime experiences, as filtered through autobiographical texts, this situation is obviously problematic. In contrast to Anne Frank and her diary, the ‘context of textual production’ (Garbarini 2014) for any Jew writing in Eastern Europe, in the very centre of the killings, could not be more different. As a result diary writing here diferred starkly in terms of both content and intent. This is particularly true for Yiddish diaries, which reflect the experiences of the poorest Jews in Eastern Europe. This paper focuses on wartime Jewish diaries from Poland. It is based mostly upon the collection of diaries from the Jewish Historical Institute in Warsaw, 75% of which are written in Polish and around 20% in Yiddish. Importantly, the collection’s inventory indicates both the locations were the writer is known to have been, as well as those locations which are mentioned in the diary, which of course do not necessarily overlap. As a result the collection’s metadata allow us to map several things: the spatio-linguistic distribution of wartime diaries and the areas covered by them; and the spread of news, as reflected by the locations covered by the diaries’ contents. Moreover, in addition to enabling the analysis of a wealth of contextual information, the inventory also lists known translation and/or publication data for each diary. As a result, we can get a glimpse in their postwar trajectories and analyse which diaries were published, where and at what time, and in which translations. This, in turn, can tell us much about the relation between translation and Holocaust memory since, as Naomi Seidman has argued (2006), “the canon of Holocaust literature should be read as the rewriting of this historical event for new audiences”. A final step would be to embed information from the diaries’ themselves, and the actual experiences that are conveyed, into the maps, thus creating a deep map which combines more factual information about the diaries with the subjective lived experiences contained within them. The project seeks to contribute to a more balanced understanding of wartime Jewish diaries and writing during WWII in Nazi-occupied Eastern Europe, though the prism of a specific collection. The broader aim of the paper is to provide an example of the type of new spatio-temporal insights that can be gleaned from collections’ metadata, in addition to ‘traditional’ textual content analysis. The project uses Nodegoat (nodegoat.net) as a way to manage, explore and visualise the data. [less ▲]

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See detailThe role of European Migration Network in supporting European migration policymakers: Mechanisms, Tools and contemporary challenges
Sommarribas, Adolfo UL

Scientific Conference (2021, March 26)

The role of the EMN in the collection of information to provide timely, comparable information to EU and national policymakers.

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See detailCan Iceland learn from Luxembourg? Understanding the host country perspective in an increasingly plural composed society
Murdock, Elke UL

Scientific Conference (2021, March 26)

Luxembourg and Iceland are very different In terms of geography, but both countries have experienced dramatic changes in terms of their population structure in recent years. With 41 immigrants per 1000 ... [more ▼]

Luxembourg and Iceland are very different In terms of geography, but both countries have experienced dramatic changes in terms of their population structure in recent years. With 41 immigrants per 1000 inhabitants, Luxembourg had the second highest number of immigrants per inhabitants in Europe in 2017 with Iceland, at 35.5, coming a close second. Since the 60s, Luxembourg’s population nearly doubled and today the foreign population percentage stands at 47.5%. Until the turn of the century, Iceland’s foreign population stood at around 2%, rising steadily over the last 20 years and today stands at 14.4% - having doubled in the last 10 years. Migration studies often focus on the immigrant perspective, but especially when numbers rise, the host country perspective is important. In Luxembourg, we conducted several studies into the attitude towards multiculturalism among the host society. The Inclusive Societies – Iceland project investigated both, the experience of immigrants to Iceland but also the attitude of the native population towards immigrants. Findings from this quantitative study covering 3630 native Icelanders (51.1% women, MAge = 50.8, SD = 15.6), spread across all regions of Iceland will be presented and parallels drawn with findings from Luxembourg. Particular focus will be placed on demographic variables, language, culture contact and citizenship influencing the attitude towards a diverse society. Understanding the attitudes towards immigrants and diversity ideologies held by the native population is important, as these will determine acculturation options open to immigrants. Implications will be discussed in light of empirical findings in Luxembourg and Iceland. [less ▲]

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See detailDie Burg in St. Vith - Eine typisch „sponheimische“ Anlage?
Uhrmacher, Martin UL

Scientific Conference (2021, March 25)

Der Vortrag geht zwei Leitfragen nach: 1) Wer kommt als Erbauer der kürzlich archäologisch nachgewiesenen Burg in St. Vith in Frage? 2) Entspricht die Burg in ihrer repräsentativen und fortifikatorischen ... [more ▼]

Der Vortrag geht zwei Leitfragen nach: 1) Wer kommt als Erbauer der kürzlich archäologisch nachgewiesenen Burg in St. Vith in Frage? 2) Entspricht die Burg in ihrer repräsentativen und fortifikatorischen Gestaltung eventuell einem „sponheimischen Burgentypus“? [less ▲]

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