References of "2020"
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See detailLuxembourg: Grand-Duke Henri’s refusal, in 2008, to sign the bill legalizing euthanasia
Heuschling, Luc UL

in Hazell, Robert; Morris, Bob (Eds.) The Role of Monarchy in Modern Democracy. European Monarchies Compared (2020)

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See detailUn nouveau type, insolite, de refus de sanction : l’inaction du roi Baudouin en 1990 et du grand-duc Henri en 2008
Heuschling, Luc UL

in Semper perseverans. Liber Amicorum André Alen (2020)

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See detailDevelopment and evaluation of a harmonized whole body physiologically based pharmacokinetic (PBPK) model for flutamide in rats and its extrapolation to humans.
Sharma, Raju Prasad; Kumar, Vikas; Schuhmacher, Marta et al

in Environmental research (2020), 182

By their definition, inadvertent exposure to endocrine disrupting compounds (EDCs) intervenes with the endocrine signalling system, even at low dose. On the one hand, some EDCs are used as important ... [more ▼]

By their definition, inadvertent exposure to endocrine disrupting compounds (EDCs) intervenes with the endocrine signalling system, even at low dose. On the one hand, some EDCs are used as important pharmaceutical drugs that one would not want to dismiss. On the other hand, these pharmaceutical drugs are having off-target effects and increasingly significant exposure to the general population with unwanted health implications. Flutamide, one of the top pharmaceutical products marketed all over the world for the treatment of prostate cancer, is also a pollutant. Its therapeutic action mainly depends on targeting the androgen receptors and inhibiting the androgen action that is essential for growth and survival of prostate tissue. Currently flutamide is of concern with respect to its categorization as an endocrine disruptor. In this work we have developed a physiologically based pharmacokinetic (PBPK) model of flutamide that could serve as a standard tool for its human risk assessment. First we built the model for rat (where many parameters have been measured). The rat PBPK model was extrapolated to human where the re-parameterization involved human-specific physiology, metabolic kinetics derived from in-vitro studies, and the partition coefficient same as the rat model. We have harmonized the model by integrating different sets of in-vitro, in-vivo and physiological data into a PBPK model. Then the model was used to simulate different exposure scenarios and the results were compared against the observed data. Both uncertainty and sensitivity analysis was done. Since this new whole-body PBPK model can predict flutamide concentrations not only in plasma but also in various organs, the model may have clinical applications in efficacy and safety assessment of flutamide. The model can also be used for reverse dosimetry in the context of interpreting the available biomonitoring data to estimate the degree to which the population is currently being exposed, and a tool for the pharmaceutical companies to validate the estimated Permitted Daily Exposure (PDE) for flutamide. [less ▲]

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See detailKateřina Čapková – David Rechter, eds., Židé, nebo Němci? Německy mluvící Židé v poválečném Československu, Polsku a Německu [Jews or Germans? German-Speaking Jews in Czechoslovakia, Poland and Germany after World War II]
Bronec, Jakub UL

in Judaica Bohemiae (2020), LV(1),

The edited book ‘Jews or Germans?’ seeks to explore the post-war expulsion of the German minority, which did not involve only Nazi adherents and ideologists. To a certain extent, the entire process of ... [more ▼]

The edited book ‘Jews or Germans?’ seeks to explore the post-war expulsion of the German minority, which did not involve only Nazi adherents and ideologists. To a certain extent, the entire process of displacement should not be apprehended solely from national or ethnic perspectives with clearly defined categories. In this sense, the project aims to problematize the established view of Jewish emigration history. [less ▲]

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See detailWorking toward equitable research practices: the value of highlighting complexity and respecting context
Siry, Christina UL; Wilmes, Sara UL

in Cultural Studies of Science Education (2020)

In this response paper, we reflect upon the contributions of Gallard Martínez, Pitts, Brkich, and Ramos de Robles (this issue) in their manuscript “How does one recognize contextual mitigating factors ... [more ▼]

In this response paper, we reflect upon the contributions of Gallard Martínez, Pitts, Brkich, and Ramos de Robles (this issue) in their manuscript “How does one recognize contextual mitigating factors (CMFs) as a basis to understand and arrive at better approaches to research designs” and elaborate the ways in which we work toward highlighting the contextual complexities within our own research. Our research focuses on working toward equitable practices for culturally and linguistically diverse children in science education, in order to draw on the many cultural and communicative resources they bring to primary school science investigations. We draw upon our previous and current research projects in this forum contribution to tease-apart CMFs related to issues of equity in teaching science with culturally and linguistically diverse primary school children in our national context in Luxembourg. We conclude with a consideration of how the process of unpacking a diverse array of CMFs relative to our work with students helps us select and employ theoretical lenses and research methodologies that position us to gather rich understandings of the complexities within our research contexts and in our work with children and teachers [less ▲]

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See detailTropical Fock-Goncharov coordinates for SL3-webs on surfaces I: construction
Sun, Zhe UL; Douglas, Daniel C.

E-print/Working paper (2020)

For a finite-type surface S, we study a preferred basis for the commutative algebra C[XSL3(C)(S)] of regular functions on the SL3(C)-character variety, introduced by Sikora and Westbury. These basis ... [more ▼]

For a finite-type surface S, we study a preferred basis for the commutative algebra C[XSL3(C)(S)] of regular functions on the SL3(C)-character variety, introduced by Sikora and Westbury. These basis elements come from the trace functions associated to certain tri-valent graphs embedded in the surface S. We show that this basis can be naturally indexed by positive integer coordinates, defined by Knutson-Tao rhombus inequalities. These coordinates are related, by the geometric theory of Fock and Goncharov, to the tropical points at infinity of the dual version of the character variety. [less ▲]

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See detailAdaptive Graph Filters in Reproducing Kernel Hilbert Spaces: Design and Performance Analysis
Elias, Vitor R. M.; Gogineni, Vinay C.; Alves Martins, Wallace UL et al

in IEEE Transactions on Signal and Information Processing over Networks (2020)

This paper develops adaptive graph filters that operate in reproducing kernel Hilbert spaces. We consider both centralized and fully distributed implementations. We first define nonlinear graph filters ... [more ▼]

This paper develops adaptive graph filters that operate in reproducing kernel Hilbert spaces. We consider both centralized and fully distributed implementations. We first define nonlinear graph filters that operate on graph-shifted versions of the input signal. We then propose a centralized graph kernel least mean squares (GKLMS) algorithm to identify nonlinear graph filters' model parameters. To reduce the dictionary size of the centralized GKLMS, we apply the principles of coherence check and random Fourier features (RFF). The resulting algorithms have performance close to that of the GKLMS algorithm. Additionally, we leverage the graph structure to derive the distributed graph diffusion KLMS (GDKLMS) algorithms. We show that, unlike the coherence check-based approach, the GDKLMS based on RFF avoids the use of a pre-trained dictionary through its data independent fixed structure. We conduct a detailed performance study of the proposed RFF-based GDKLMS, and the conditions for its convergence both in mean and mean-squared senses are derived. Extensive numerical simulations show that GKLMS and GDKLMS can successfully identify nonlinear graph filters and adapt to model changes. Furthermore, RFF-based strategies show faster convergence for model identification and exhibit better tracking performance in model-changing scenarios. [less ▲]

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See detailA boundary-enhanced supervoxel method for extraction of road edges in MLS point clouds
Sha, Zhengchuan; Chen, Yiping; Li, Wen et al

in A boundary-enhanced supervoxel method for extraction of road edges in MLS point clouds (2020)

Road extraction plays a significant role in production of high definition maps (HD maps). This paper presents a novel boundary-enhanced supervoxel segmentation method for extracting road edge contours ... [more ▼]

Road extraction plays a significant role in production of high definition maps (HD maps). This paper presents a novel boundary-enhanced supervoxel segmentation method for extracting road edge contours from MLS point clouds. The proposed method first leverages normal feature judgment to obtain 3D point clouds global geometric information, then clusters points according to an existing method with global geometric information to enhance the boundaries. Finally, it utilizes the neighbor spatial distance metric to extract the contours and drop out existing outliers. The proposed method is tested on two datasets acquired by a RIEGL VMX-450 MLS system that contain the major point cloud scenes with different types of road boundaries. The experimental results demonstrate that the proposed method provides a promising solution for extracting contours efficiently and completely. Results show that the precision values are 1.5 times higher and approximately equal than the other two existing methods when the recall value is 0 for both tested two road datasets. [less ▲]

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See detailExploring chemical compound space with quantum-based machine learning
O. Anatole von Lilienfeld; Klaus- Robert Müller; Tkatchenko, Alexandre UL

in Nature Reviews. Chemistry (2020)

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See detailForeign schriftdenken in ausbau languages Luxembourgish and Rusyn orthographies in multiple language contact
Weth, Constanze UL; Bunčić, Daniel

in Written Language and Literacy (2020), 23(2), 289-312

The concept of schriftdenken describes how the knowledge of a writing system in use guides the creation of a writing system for a yet to be standardized language. Trubetzkoy described this effect with ... [more ▼]

The concept of schriftdenken describes how the knowledge of a writing system in use guides the creation of a writing system for a yet to be standardized language. Trubetzkoy described this effect with reference to the invention of the Glagolitic alphabet in the 9th century with Greek as the reference writing system. This paper demonstrates schriftdenken and measures to increase orthographic differences in two writing systems with a relatively young history: Luxembourgish (a Germanic language) and Rusyn (a Slavic language). In the Luxembourgish context, schriftdenken and orthographic separation are revealed by the historical context, whereas in the Rusyn context, both practices are related to different geographic contact situations in the countries where Rusyn is spoken and written. The reference languages for Luxem¬bourg¬ish are German, French and Dutch; for Rusyn, they are Russian, Ukrainian, Church Slavonic, Polish and Slovak. [less ▲]

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See detailClara Mortamet (dir.), L’orthographe. Pratiques d’élèves, pratiques d’enseignants, représentations
Weth, Constanze UL

Article for general public (2020)

compte rendu / report

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See detailResponses to COVID-19
Andersen, Katja Natalie UL

Report (2020)

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See detailAssessment of the 2020 National Reform Programme
Andersen, Katja Natalie UL

Report (2020)

From the perspective of primary, secondary and higher education, the 2020 NRP focuses on the two objectives (1) dropping out of school with a target rate under 10% and (2) higher education with a target ... [more ▼]

From the perspective of primary, secondary and higher education, the 2020 NRP focuses on the two objectives (1) dropping out of school with a target rate under 10% and (2) higher education with a target rate of people between 30 and 34 years of age having a HE qualification reaches 66%. At first glance, both of these target rates may not appear ambitious enough, since similar results have already been achieved in previous years (e.g., 9.3% ESL rate in 2015; see section 2.0). Nevertheless, in view of the specific situation of Luxembourg, which has the highest proportion of foreigners in the European Union, the rates described in the 2020 NRP appear appropriate. In order to achieve the objectives of the 2020 NRP on the ESL rate and the HE rate, the considerations formulated on lifelong learning appear to be of particular importance. [less ▲]

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See detailOn the structure of symmetric $n$-ary bands
Devillet, Jimmy UL; Mathonet, Pierre

E-print/Working paper (2020)

We study the class of symmetric $n$-ary bands. These are $n$-ary semigroups $(X,F)$ such that $F$ is invariant under the action of permutations and idempotent, i.e., satisfies $F(x,\ldots,x)=x$ for all $x ... [more ▼]

We study the class of symmetric $n$-ary bands. These are $n$-ary semigroups $(X,F)$ such that $F$ is invariant under the action of permutations and idempotent, i.e., satisfies $F(x,\ldots,x)=x$ for all $x\in X$. We first provide a structure theorem for these symmetric $n$-ary bands that extends the classical (strong) semilattice decomposition of certain classes of bands. We introduce the concept of strong $n$-ary semilattice of $n$-ary semigroups and we show that the symmetric $n$-ary bands are exactly the strong $n$-ary semilattices of $n$-ary extensions of Abelian groups whose exponents divide $n-1$. Finally, we use the structure theorem to obtain necessary and sufficient conditions for a symmetric $n$-ary band to be reducible to a semigroup. [less ▲]

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See detailNatural Strategic Abilities in Voting Protocols
Jamroga, Wojciech UL; Kurpiewski, Damian; Malvone, Vadim

in Proceedings of the 10th International Workshop on Socio-Technical Aspects in Security STAST 2020 (2020)

Security properties are often focused on the technological side of the system. One implicitly assumes that the users will behave in the right way to preserve the property at hand. In real life, this ... [more ▼]

Security properties are often focused on the technological side of the system. One implicitly assumes that the users will behave in the right way to preserve the property at hand. In real life, this cannot be taken for granted. In particular, security mechanisms that are difficult and costly to use are often ignored by the users, and do not really defend the system against possible attacks.Here, we propose a graded notion of security based on the complexity of the user’s strategic behavior. More precisely, we suggest that the level to which a security property φ is satisfied can be defined in terms of (a)the complexity of the strategy that the voter needs to execute to make φ true, and (b) the resources that the user must employ on the way. The simpler and cheaper to obtain φ, the higher the degree of security. We demonstrate how the idea works in a case study based on an electronicv oting scenario. To this end, we model the vVote implementation of thePrˆet `a Voter voting protocol for coercion-resistant and voter-verifiable elections. Then, we identify “natural” strategies for the voter to obtain receipt-freeness, and measure the voter’s effort that they require. We also look at how hard it is for the coercer to compromise the election through a randomization attack. [less ▲]

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See detailTowards Partial Order Reductions for Strategic Ability
Jamroga, Wojciech UL; Penczek, Wojciech; Sidoruk, Teofil et al

in Journal of Artificial Intelligence Research (2020), 68

We propose a general semantics for strategic abilities of agents in asynchronous systems, with and without perfect information. Based on the semantics, we show some general complexity results for ... [more ▼]

We propose a general semantics for strategic abilities of agents in asynchronous systems, with and without perfect information. Based on the semantics, we show some general complexity results for verification of strategic abilities in asynchronous interaction. More importantly, we develop a methodology for partial order reduction in verification of agents with imperfect information. We show that the reduction preserves an important subset of strategic properties, with as well as without the fairness assumption. We also demonstrate the effectiveness of the reduction on a number of benchmarks. Interestingly, the reduction does not work for strategic abilities under perfect information. [less ▲]

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See detailMsATL: a Tool for SAT-Based ATL Satisfiability Checking
Niewiadomski, Artur; Kacprzak, Magdalena; Kurpiewski, Damian et al

in Proceedings of 19th International Conference on Autonomous Agents and Multiagent Systems AAMAS 2020 (2020)

We present MsATL: the first tool for deciding the satisfiability of Alternating-time Temporal Logic ( ATL ) with imperfect informa- tion. MsATL combines SAT Modulo Monotonic Theories solvers with existing ... [more ▼]

We present MsATL: the first tool for deciding the satisfiability of Alternating-time Temporal Logic ( ATL ) with imperfect informa- tion. MsATL combines SAT Modulo Monotonic Theories solvers with existing ATL model checkers: MCMAS and STV. The tool can deal with various semantics of ATL , including perfect and imper- fect information, and can handle additional practical requirements. MsATL can be applied for synthesis of games that conform to a given specification, with the synthesised game often being minimal. [less ▲]

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See detailTransport inequalities for random point measures
Herry, Ronan; Gozlan, Nathael; Peccati, Giovanni UL

E-print/Working paper (2020)

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See detailQuantitative two-scale stabilization on the Poisson space
Lachièze-Rey, Raphaël; Peccati, Giovanni UL; Yang, Xiaochuan

E-print/Working paper (2020)

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