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See detailDifferent but Similar: Personality Traits of Surgeons and Internists. Results of a Cross-Sectional Observational Study
Stienen, Martin N.; Scholtes, Felix; Samuel, Robin UL et al

in BMJ Open (in press)

Objectives: Medical practice may attract and possibly enhance distinct personality profiles. We set out to describe the personality profiles of surgical and medical specialties focusing on board-certified ... [more ▼]

Objectives: Medical practice may attract and possibly enhance distinct personality profiles. We set out to describe the personality profiles of surgical and medical specialties focusing on board-certified physicians. Design: Prospective, observational. Setting: Online survey containing the Ten-Item Personality Inventory (TIPI), an international-ly validated measure of the Five Factor Model of personality dimensions, distributed to board-certified physicians, residents and medical students in several European countries and Cana-da. Differences in personality profiles were analyzed using MANOVA and Canonical Linear Discriminant Analysis on age- and sex-standardized z-scores of the personality traits. Single personality traits were analyzed using robust t-tests. Participants: The TIPI was completed by 2345 board-certified physicians, 1453 residents and 1350 medical students, who also provided demographic information. Interventions: None. Results: Normal population and board-certified physicians’ personality profiles differed (P<0.001). The latter scored higher on conscientiousness, extraversion, and agreeableness, but lower on neuroticism (all P<0.001). There was no difference in openness to experience. Board-certified surgical and medical doctors’ personality profiles were also different (P<0.001). Surgeons scored higher on extraversion (P=0.003) and openness to experience (P=0.002), but lower on neuroticism (P<0.001). There was no difference in agreeableness and conscientiousness. These differences in personality profiles were reproduced at other levels of training, i.e., in students and training physicians engaging in surgical versus medical practice. Conclusion: These results indicate the existence of a distinct and consistent average “physi-cian personality”. Despite high variability within disciplines, there are moderate, but solid and reproducible differences between surgical and medical specialties. [less ▲]

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See detailMobilising knowledge at the science-policy interface: ‘Humanity on the Move’
Hesse, Markus UL

in Grubbauer, Monika; Shaw, Kate (Eds.) Across Theory and Practice: Thinking through Urban Research (in press)

In this chapter, I discuss the interplay of urban theory and practice in the context of the science-policy interface: a space of mutual engagement of research and related practices in the urban arena. My ... [more ▼]

In this chapter, I discuss the interplay of urban theory and practice in the context of the science-policy interface: a space of mutual engagement of research and related practices in the urban arena. My case study analyses the work of the German Advisory Council on Global Change (Wissenschaftlicher Beirat der Bundesregierung Globale Umweltveränderungen, WBGU), most notably its 2016 report on global urbanisation (WBGU 2016). By presenting the big narrative of the planet becoming entirely urbanised, there is a certain positivism and essentialism underlying this report that fails to acknowledge political conflict and what went wrong in the past. This contradicts the lofty political ambitions of the advisory council. I conclude that the WGBU’s policy advice and consultation is limited because it does not consider the murky and messy nature of politics and, thus, does not provide sufficient orientation for practice. This case study therefore illustrates the difficulties and problems when research and practice interact. [less ▲]

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See detailArbeitslosigkeit für Lehrabgänger problematisch
Sacchi, Stefan; Shi, Lulu P.; Imdorf, Christian et al

in Die Volkswirtschaft (in press)

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See detailPrecise estimates of gaming-related harm should guide regulation of gaming
Starcevic, Vladan; Billieux, Joël UL

in Journal of Behavioral Addictions (in press)

Regulation of gaming is largely based on the perception of gaming-related harm. This perception varies from one country to another and does not necessarily correspond to the real gaming-related harm. It ... [more ▼]

Regulation of gaming is largely based on the perception of gaming-related harm. This perception varies from one country to another and does not necessarily correspond to the real gaming-related harm. It is argued that there is a crucial need to define and assess domains of this harm in order to introduce policies that regulate gaming. Such policies would ideally be targeted at individuals at risk for problematic gaming and would be based more on educational efforts than on restrictive measures. The role of gaming industry in the regulation of gaming would depend on the more precise estimates of gaming-related harm. [less ▲]

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See detailInforming a social practice theory framework with social-psychological factors for analyzing routinized energy consumption: A multivariate analysis of three practices
Hess, Ann-Kathrin; Samuel, Robin UL; Burger, Paul

in Energy Research & Social Science (in press)

A key factor contributing to the non-realization of energy efficiency potentials is the routinized way in which many energy consumption behaviors (ECBs) are performed. To analyze routinized ECBs, we draw ... [more ▼]

A key factor contributing to the non-realization of energy efficiency potentials is the routinized way in which many energy consumption behaviors (ECBs) are performed. To analyze routinized ECBs, we draw on social practice theory and psychological concepts and suggest a framework that considers individual, social, and material factors. Based on our proposed framework and employing multivariate regression analysis, we gain new insights into associated factors of routinized ECBs—particularly for washing and drying clothes and showering. Analyzing data from a survey conducted among Swiss households in 2016 (n=5015), we find that individual values, practice-specific wants, and materials explain variations in routinized ECB performance. Furthermore, socio-demographic predictors shed light on cultural and status differences associated with routinized ECBs. This paper contributes to understanding associated factors of routinized ECBs by bridging practice theory and psychology-based factors. [less ▲]

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See detailInventory Decisions in the Presence of Strategic Customers: Theory and Behavioral Evidence
Zhang, Yang; Mantin, Benny UL; Wu, Yaozhong

in Production and Operations Management (in press)

We consider the inventory decision of a retailer facing strategic customers. We develop a behavioral theory that accounts for reference dependence, which makes predictions on how the presence of strategic ... [more ▼]

We consider the inventory decision of a retailer facing strategic customers. We develop a behavioral theory that accounts for reference dependence, which makes predictions on how the presence of strategic customers leverages retailer behavior. Specifically, the reference-dependent retailer shall decrease her order quantity when there are more strategic customers in the population. As such, the conventional pull-to-center bias for newsvendor is generalized, since the presence of strategic consumers may induce the retailer to pull her order further below the center even when the production cost is low. Furthermore, increasing proportion of strategic customers reduces the retailer's ordering bias under low cost, yet amplifies it when the cost is high. Our subsequent experiments find pull-below-center effect, validate the theoretical predictions, and establish the asymmetry of reference dependence with the estimated behavioral parameters. We also study extensions to our model and carry out robustness checks of our experimental results. [less ▲]

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See detailStriking a balance between competitiveness and social fairness: what can we expect from the European Pillar of Social Rights?
Muñoz, Susana UL

in Chiocchetti, Paolo; Allemand, Frédéric (Eds.) Competitiveness and Solidarity in the European Union: Interdisciplinary Perspectives (2019)

The solemnly proclaimed European Pillar of Social Rights provides a meaningful response to the process of building a deeper, fairer European Union in the aftermath of the crisis. This chapter aims to ... [more ▼]

The solemnly proclaimed European Pillar of Social Rights provides a meaningful response to the process of building a deeper, fairer European Union in the aftermath of the crisis. This chapter aims to provide a critical assessment of the nature, scope, rationale, purpose, content and effectiveness of the Pillar in the light of its potential contribution to foster social fairness and competitiveness in the EU. The Pillar complements and develops the EU’s social acquis and reinforces standards which may provide a fairer and more socially-balanced competitiveness in the EU. Progress has been made, but further efforts are needed to build a sense of common purpose to strengthen the social foundations of the Union. [less ▲]

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See detailDynamic controllers for column synchronization of rotation matrices: a QR-factorization approach
Thunberg, Johan UL; Markdahl, Johan UL; Goncalves, Jorge UL

in Automatica (2018), 93

In the multi-agent systems setting, this paper addresses continuous-time distributed synchronization of columns of rotation matrices. More precisely, k specific columns shall be synchronized and only the ... [more ▼]

In the multi-agent systems setting, this paper addresses continuous-time distributed synchronization of columns of rotation matrices. More precisely, k specific columns shall be synchronized and only the corresponding k columns of the relative rotations between the agents are assumed to be available for the control design. When one specific column is considered, the problem is equivalent to synchronization on the (d-1)-dimensional unit sphere and when all the columns are considered, the problem is equivalent to synchronization on SO(d). We design dynamic control laws for these synchronization problems. The control laws are based on the introduction of auxiliary variables in combination with a QR-factorization approach. The benefit of this QR-factorization approach is that we can decouple the dynamics for the $k$ columns from the remaining d-k ones. Under the control scheme, the closed loop system achieves almost global convergence to synchronization for quasi-strong interaction graph topologies. [less ▲]

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See detailAnti-de Sitter geometry: convex domains, foliations and volume
Tamburelli, Andrea UL

Doctoral thesis (2018)

We study various aspects of the geometry of globally hyperbolic anti-de Sitter 3-manifolds. For manifolds with convex space-like boundaries, homeomorphic to the product of a closed, connected and oriented ... [more ▼]

We study various aspects of the geometry of globally hyperbolic anti-de Sitter 3-manifolds. For manifolds with convex space-like boundaries, homeomorphic to the product of a closed, connected and oriented surface of genus at least two with an interval, we prove that every pair of metrics with curvature less than -1 on the surface can be realised on the two boundary components. For globally hyperbolic maximal compact (GHMC) anti-de Sitter manifolds, we study various geometric quantities, such as the volume, the Hausdorff dimension of the limit set, the width of the convex core and the Holder exponent of the manifold, in terms of the parameters that describe the deformation space of GHMC anti-de Sitter structures. Moreover, we prove existence and uniqueness of a foliation by constant mean curvature surfaces of the domain of dependence of any quasi-circle in the boundary at infinity of anti-de Sitter space. [less ▲]

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See detailEBC network
Lehnert, Thorsten UL

Scientific Conference (2018, June 12)

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See detailExploring a Multiphysics Resolution Approach for Additive Manufacturing
Estupinan Donoso, Alvaro Antonio UL; Peters, Bernhard UL

in JOM (2018)

Metal additive manufacturing (AM) is a fast-evolving technology aiming to efficiently produce complex parts while saving resources. Worldwide, active research is being performed to solve the existing ... [more ▼]

Metal additive manufacturing (AM) is a fast-evolving technology aiming to efficiently produce complex parts while saving resources. Worldwide, active research is being performed to solve the existing challenges of this growing technique. Constant computational advances have enabled multiscale and multiphysics numerical tools that complement the traditional physical experimentation. In this contribution, an advanced discrete--continuous concept is proposed to address the physical phenomena involved during laser powder bed fusion. The concept treats powder as discrete by the extended discrete element method, which predicts the thermodynamic state and phase change for each particle. The fluid surrounding is solved with multiphase computational fluid dynamics techniques to determine momentum, heat, gas and liquid transfer. Thus, results track the positions and thermochemical history of individual particles in conjunction with the prevailing fluid phases' temperature and composition. It is believed that this methodology can be employed to complement experimental research by analysis of the comprehensive results, which can be extracted from it to enable AM processes optimization for parts qualification. [less ▲]

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

Scientific Conference (2018, June 09)

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

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

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See detailUn spectre hante le monde...
Scuto, Denis UL

Article for general public (2018)

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See detailWo mache ich einen Absatz?
Huemer, Birgit UL

Presentation (2018, June 08)

Schreiber gliedern ihre Texte visuell in kleinere Portionen oder Teiltexte, die eine Unterbrechung des Textflusses darstellen und die Information strukturieren (Heinemann & Viehweger 1991). Diese ... [more ▼]

Schreiber gliedern ihre Texte visuell in kleinere Portionen oder Teiltexte, die eine Unterbrechung des Textflusses darstellen und die Information strukturieren (Heinemann & Viehweger 1991). Diese Gliederung erfolgt durch einfache grafisch-formale Mittel, die genre-spezifisch sind und die sich an sprachlich realisierten inhaltlich-thematischen Kriterien sowie an Kriterien der Textkohärenz orientieren (Longacre 1979, van Dijk 1981). Stein (2003) zeigt in seiner Studie, dass der Zusammenhang zwischen dem inhaltlich-thematischen Wechsel und der grafisch-formalen Absatzmarkierung im Text Studierenden der Germanistik als Konzept zwar bekannt ist, jedoch in der Anwendung Schwierigkeiten bereitet. In diesem Vortrag wird am Beispiel deutschsprachiger Masterarbeiten gezeigt, welche Schwierigkeiten den Studierenden die Platzierung und Strukturierung von Absätzen bereitet und welchen Einfluss dies auf Textkohärenz und Leserorientierung hat. Die Ergebnisse basieren auf einer kontrastiven linguistischen Analyse deutsch-, englisch- und französischsprachiger Theoriekapitel in 12 verschiedenen Masterarbeiten aus demselben Fach, in denen die grafisch-formale Absatzmarkierung, die linguistische Struktur von Absätzen und der Einsatz kohäsiver Mittel untersucht wurden. [less ▲]

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See detailOn biselective operations
Devillet, Jimmy UL; Kiss, Gergely UL

Scientific Conference (2018, June 07)

See attached file

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See detailGovernance and Price Jumps
Lehnert, Thorsten UL

Scientific Conference (2018, June 07)

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See detailHome Literacy Environment and Family Language Policy of Preschool Language Minority Children in Luxembourg
Aleksic, Gabrijela UL

Presentation (2018, June 05)

This project aims to explore home literacy environment (HLE) and family language policy (FLP) of language minority preschool children in Luxembourg. These aims were explored through four phases. In the ... [more ▼]

This project aims to explore home literacy environment (HLE) and family language policy (FLP) of language minority preschool children in Luxembourg. These aims were explored through four phases. In the first phase we investigated language resources and activities of children in their families. To achieve this aim, we administered the questionnaires on home literacy environment to the parents with migrant backgrounds from five highest migrant municipalities in Luxembourg. In the second phase, through the interviews with the interested parents from the first phase, we explored family language policy: how parents and children learn, manage and negotiate different languages at home. In the third phase, we tested early literacy and numeracy of preschool language minority children, in their home languages and Luxembourgish, at school. In the fourth phase, we asked the teachers of the participating schools to answer three questions on the challenges and opportunities while working with language minority children and the needs they have to improve their work. This study, the first of its kind in Luxembourg, is extremely important for understanding linguistic state-of-the-art of language minority children in their families. Luxembourg is falling behind the OECD mean in reading (ranked 32nd in 2015), where Portuguese children are being particularly vulnerable. Early literacy skills are critical for children’s later academic achievement. A wealth of research showed that children’s home language should not be abandoned as it is crucial for promoting dynamic multilingualism and assuring cross-linguistic transfer. This study aims to reveal valuable information about home literacy practices and policies of families with language minority preschool children. Based on this information we can strengthen the collaboration with schools regarding children’s multilingual processing and academic achievement. [less ▲]

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See detailClones of pivotally decomposable operations
Couceiro, Miguel; Teheux, Bruno UL

Scientific Conference (2018, June)

We investigate the clones of operations that are pivotally decomposable.

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See detailFunctional equation that characterize higher order derivations
Kiss, Gergely UL

Scientific Conference (2018, June)

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