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See detailEpitope imprinting of alpha-synuclein for sensing in Parkinson's brain organoid culture medium
Lee, Mei-Hwa; Thomas, James; Su, Zi-Lin et al

in Biosensors and Bioelectronics (2020)

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See detailCharacterising probabilistic alternating simulation for concurrent games
Zhang, Chenyi; Pang, Jun UL

in Proceedings of the 14th IEEE Symposium on Theoretical Aspects of Software Engineering (TASE) (2020)

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See detailOn Performance Characterization of Cascaded Multiwire-PLC/MIMO-RF Communication System
Ai, Yun; Kong, Long UL; Cheffena, Michael et al

E-print/Working paper (2020)

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See detailResponse to my critics: In defense of Kant’s aesthetic nonconceptualism
Heidemann, Dietmar UL

in Con-Textos Kantianos: International Journal of Philosophy (2020), (12), 173-190

In this article I respond to objections that Matías Oroño, Silvia del Luján di Saanza, Pedro Stepanenko and Luciana Martínez have raised against my non-conceptualist reading of Kant’s aesthetics. The ... [more ▼]

In this article I respond to objections that Matías Oroño, Silvia del Luján di Saanza, Pedro Stepanenko and Luciana Martínez have raised against my non-conceptualist reading of Kant’s aesthetics. The objections are both, substantial and instructive. I first sketch my non-conceptualist reading of Kant’s doctrine of judgments of taste and then turn to what I take to be the most important criticisms that these authors have put forward. Two difficulties with a non-conceptualist reading of Kant’s aesthetics seem to be central: the cognitive status of judgments of taste and the representationalist capacity of aesthetic feeling as non-conceptual mental content. I respond to these and additional objections and defend my overall non-conceptualist interpretation of Kant’s aesthetics against my critics. I argue that Kant’s aesthetics is highly relevant for the debate over whether or not Kant is a (non-)conceptualist. [less ▲]

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See detailSchumann's Eck - an interactive documentary
Camarda, Sandra UL; Santana, Dominique UL; Scuto, Denis UL et al

Computer development (2020)

Interactive web documentary realised by the students of the Bachelor Course in Contemporary History of Luxembourg (Summer Semester 2019) in collaboration with the National Museum of Military History ... [more ▼]

Interactive web documentary realised by the students of the Bachelor Course in Contemporary History of Luxembourg (Summer Semester 2019) in collaboration with the National Museum of Military History, Diekirch. [less ▲]

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See detailWhat’s in a name? Identity, indexicality and name-change in an immigrant context
Obojska, Maria UL

in European Journal of Applied Linguistics (2020), 8(2), 333-353

The present study explores the case of a transnational Polish family in Norway in which one of the care givers as well as the teenage son underwent a name change after their initial experiences of ... [more ▼]

The present study explores the case of a transnational Polish family in Norway in which one of the care givers as well as the teenage son underwent a name change after their initial experiences of migration. Drawing on the audio-recorded interactions in the interview situation, the article investigates the identity constructions of the focal participant in his narrative about the name change. To this end, first, the indexicalities of the social identity category Pole as constructed in Norwegian media and the participants’ accounts are outlined. Then, against this backdrop, the focal participant’s identity claims as occasioned in the narrative on the name change are discursively analyzed. The analysis shows that the identity claims the focal participant makes aim at dissociating himself from the powerless, stigmatized position of a migrant, in which he was cast upon his arrival in Norway. Furthermore, the study suggests that migrant identity constructions need to be considered against the participants’ lived experiences of migration, larger societal discourses and against participants’ constructions of belonging to imagined communities. [less ▲]

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See detailReduced astrocytic reactivity in human brains and midbrain organoids with PRKN mutations
Kano, Masayoshi; Takanashi, Masashi; Oyama, Genko et al

in NPJ Parkinson's Disease (2020)

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See detailAn Overview of Generic Tools for Information-Theoretic Secrecy Performance Analysis over Wiretap Fading Channels
Kong, Long UL; Ai, Yun; Lei, Lei UL et al

E-print/Working paper (2020)

An alternative or supplementary approach named as physical layer security has been proposed to afford an extra security layer on top of the conventional cryptography technique. In this paper, an overview ... [more ▼]

An alternative or supplementary approach named as physical layer security has been proposed to afford an extra security layer on top of the conventional cryptography technique. In this paper, an overview of secrecy performance investigations over the classic Alice-Bob-Eve wiretap fading channels is conducted. On the basis of the classic wiretap channel model, we have comprehensively listed and thereafter compared the existing works on physical layer secrecy analysis considering the small-scale, large-scale, composite, and cascaded fading channel models. Exact secrecy metrics expressions, including secrecy outage probability (SOP), the probability of non-zero secrecy capacity (PNZ), average secrecy capacity (ASC), and secrecy bounds, including the lower bound of SOP and ergodic secrecy capacity, are presented. In order to encompass the aforementioned four kinds of fading channel models with a more \textit{generic} and \textit{flexible} distribution, the mixture gamma (MG), mixture of Gaussian (MoG), and Fox's $H$-function distributions are three useful candidates to largely include the above-mentioned four kinds of fading channel models. It is shown that they are flexible and general when assisting the secrecy analysis to obtain closed-form expressions. Their advantages and limitations are also highlighted. Conclusively, these three approaches are proven to provide a unified secrecy analysis framework and can cover all types of independent wiretap fading channel models. Apart from those, revisiting the existing secrecy enhancement techniques based on our system configuration, the on-off transmission scheme, jamming approach (including artificial noise (AN) & artificial fast fading (AFF)), antenna selection, and security region are presented. [less ▲]

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See detailDoes eliminating international profit shifting increase tax revenue in high-tax countries?
Pieretti, Patrice UL; Pulina, Giuseppe

in Economic Modelling (2020), 93

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See detailThe Quality of Work Index and the Employment Quality Index: A multidimensional approach of job quality and its links to well-being at work
Steffgen, Georges UL; Sischka, Philipp UL; Fernandez de Henestrosa, Martha UL

in International Journal of Environmental Research and Public Health (2020)

(1) Background: Job quality is a multidimensional and elusive concept that is back in vogue among social scientists and policymaker. The current study proposes a new job quality approach that is compared ... [more ▼]

(1) Background: Job quality is a multidimensional and elusive concept that is back in vogue among social scientists and policymaker. The current study proposes a new job quality approach that is compared with the EuropeanWorking Conditions Survey framework and structured with the help of the Job Demands-Resources model. Two new measures of job quality, the Quality ofWork Index (QoW) and the Quality of Employment Index (QoE) are developed and validated in three different languages (German, French, Luxembourgish). The QoW is composed of 43 items, focusing on four areas of work—work intensity, job design, social conditions, and physical conditions (subdivided in eleven components)—which are particularly important for employees’ well-being. The QoE is composed of 13 items that cover training opportunities, career advancement, job security, employability, work life conflict, and income satisfaction. (2) Methods: Data were collected via computer-assisted telephone interviews in a representative sample of 1522 employees working in Luxembourg (aged 17–67 years; 57.2% male). (3) Results: Confirmatory factor analysis confirmed the proposed factors structure and scalar measurement invariance for the three different language versions. Internal consistencies were satisfactory for all subscales (Cronbach’s Alpha between 0.70 and 0.87). Correlations and hierarchical regression analyses with different psychological health measures (i.e., burnout, general well-being, psychosomatic complaints, work satisfaction, vigor) and subjective work performance confirmed the construct validity of the new instruments. (4) Conclusions: The QoW and the QoE are globally and on the level of the sub-categories effective tools to measure job quality, which could be used to compare job quality between organizations and different countries. Furthermore, the current study confirms associations between the different components of the QoW and QoE and employees’ health. [less ▲]

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See detailWhen one-two-three beats two-one-three: Tracking the acquisition of the verbal number sequence.
Van Rinsveld, Amandine; Schiltz, Christine UL; Majerus, Steve et al

in Psychonomic bulletin & review (2020), 27(1), 122-129

Learning how to count is a crucial step in cognitive development, which progressively allows for more elaborate numerical processing. The existing body of research consistently reports how children ... [more ▼]

Learning how to count is a crucial step in cognitive development, which progressively allows for more elaborate numerical processing. The existing body of research consistently reports how children associate the verbal code with exact quantity. However, the early acquisition of this code, when the verbal numbers are encoded in long-term memory as a sequence of words, has rarely been examined. Using an incidental assessment method based on serial recall of number words presented in ordered versus non-ordered sequences (e.g., one-two-three vs. two-one-three), we tracked the progressive acquisition of the verbal number sequence in children aged 3-6 years. Results revealed evidence for verbal number sequence knowledge in the youngest children even before counting is fully mastered. Verbal numerical knowledge thus starts to be organized as a sequence in long-term memory already at the age of 3 years, and this numerical sequence knowledge is assessed in a sensitive manner by incidental rather than explicit measures of number knowledge. [less ▲]

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See detailA Report on the VarDial Evaluation Campaign 2020
Găman, Mihaela; Hovy, Dirk; Ionescu, Radu et al

in Zampieri, Marcos; Preslav, Yakov; Ljubešić, Nikola (Eds.) et al Proceedings of the 7th Workshop on NLP for Similar Languages, Varieties and Dialects (2020)

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See detailThe neural signature of numerosity by separating numerical and continuous magnitude extraction in visual cortex with frequency-tagged EEG.
Van Rinsveld, Amandine; Guillaume, Mathieu; Kohler, Peter J. et al

in Proceedings of the National Academy of Sciences of the United States of America (2020), 117(11), 5726-5732

The ability to handle approximate quantities, or number sense, has been recurrently linked to mathematical skills, although the nature of the mechanism allowing to extract numerical information (i.e ... [more ▼]

The ability to handle approximate quantities, or number sense, has been recurrently linked to mathematical skills, although the nature of the mechanism allowing to extract numerical information (i.e., numerosity) from environmental stimuli is still debated. A set of objects is indeed not only characterized by its numerosity but also by other features, such as the summed area occupied by the elements, which often covary with numerosity. These intrinsic relations between numerosity and nonnumerical magnitudes led some authors to argue that numerosity is not independently processed but extracted through a weighting of continuous magnitudes. This view cannot be properly tested through classic behavioral and neuroimaging approaches due to these intrinsic correlations. The current study used a frequency-tagging EEG approach to separately measure responses to numerosity as well as to continuous magnitudes. We recorded occipital responses to numerosity, total area, and convex hull changes but not to density and dot size. We additionally applied a model predicting primary visual cortex responses to the set of stimuli. The model output was closely aligned with our electrophysiological data, since it predicted discrimination only for numerosity, total area, and convex hull. Our findings thus demonstrate that numerosity can be independently processed at an early stage in the visual cortex, even when completely isolated from other magnitude changes. The similar implicit discrimination for numerosity as for some continuous magnitudes, which correspond to basic visual percepts, shows that both can be extracted independently, hence substantiating the nature of numerosity as a primary feature of the visual scene. [less ▲]

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See detailNASCO: A New Method and Program to Generate Dot Arrays for Non-Symbolic Number Comparison Tasks
Guillaume, Mathieu; Schiltz, Christine UL; Rinsveld, Amandine Van

in Journal of Numerical Cognition (2020), 6(1), 129--147

Basic numerical abilities are generally assumed to influence more complex cognitive processes involving numbers, such as mathematics. Yet measuring non-symbolic number abilities remains challenging due to ... [more ▼]

Basic numerical abilities are generally assumed to influence more complex cognitive processes involving numbers, such as mathematics. Yet measuring non-symbolic number abilities remains challenging due to the intrinsic correlation between numerical and non-numerical dimensions of any visual scene. Several methods have been developed to generate non-symbolic stimuli controlling for the latter aspects but they tend to be difficult to replicate or implement. In this study, we describe the NASCO method, which is an extension to the method popularized by Dehaene, Izard, and Piazza (2005). Their procedure originally controlled for two visual dimensions that are mediated by Number: Total Area and Item Size (i.e., N = TA/IS). Here, we additionally propose to control for another twofold dimension related to the array extent, which is also mediated by Number: Convex Hull Area and Mean Occupancy (i.e., N = CH/MO). We illustrate the NASCO method with a MATLAB app—NASCO app—that allows easy generation of dot arrays for a visually controlled assessment of non-symbolic numerical abilities. Results from a numerical comparison task revealed that the introduction of this twofold dimension manipulation substantially affected young adults’ performance. In particular, we did not replicate the relation between non-symbolic number abilities and arithmetic skills. Our findings open the debate about the reliability of previous results that did not take into account visual features related to the array extent. We then discuss the strengths of NASCO method to assess numerical ability, as well as the benefits of its straightforward implementation in NASCO app for researchers. [less ▲]

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See detailUnits-first or tens-first: Does language matter when processing visually presented two-digit numbers?
Poncin, Alexandre; Van Rinsveld, Amandine; Schiltz, Christine UL

in Quarterly journal of experimental psychology (2006) (2020), 73(5), 726-738

The linguistic structure of number words can influence performance in basic numerical tasks such as mental calculation, magnitude comparison, and transcoding. Especially the presence of ten-unit inversion ... [more ▼]

The linguistic structure of number words can influence performance in basic numerical tasks such as mental calculation, magnitude comparison, and transcoding. Especially the presence of ten-unit inversion in number words seems to affect number processing. Thus, at the beginning of formal math education, young children speaking inverted languages tend to make relatively more errors in transcoding. However, it remains unknown whether and how inversion affects transcoding in older children and adults. Here we addressed this question by assessing two-digit number transcoding in adults and fourth graders speaking French and German, that is, using non-inverted and inverted number words, respectively. We developed a novel transcoding paradigm during which participants listened to two-digit numbers and identified the heard number among four Arabic numbers. Critically, the order of appearance of units and tens in Arabic numbers was manipulated mimicking the "units-first" and "tens-first" order of German and French. In a third "simultaneous" condition, tens and units appeared at the same time in an ecological manner. Although language did not affect overall transcoding speed in adults, we observed that German-speaking fourth graders were globally slower than their French-speaking peers, including in the "simultaneous" condition. Moreover, French-speaking children were faster in transcoding when the order of digit appearance was congruent with their number-word system (i.e., "tens-first" condition) while German-speaking children appeared to be similarly fast in the "units-first" and "tens-first" conditions. These findings indicate that inverted languages still impose a cognitive cost on number transcoding in fourth graders, which seems to disappear by adulthood. They underline the importance of language in numerical cognition and suggest that language should be taken into account during mathematics education. [less ▲]

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See detailDevelopmental changes in neural letter-selectivity: A 1-year follow-up of beginning readers.
van de Walle de Ghelcke, Alice; Rossion, Bruno; Schiltz, Christine UL et al

in Developmental science (2020)

The developmental course of neural tuning to visual letter strings is unclear. Here we tested 39 children longitudinally, at the beginning of grade 1 (6.45 ± 0.33 years old) and 1 year after, with fast ... [more ▼]

The developmental course of neural tuning to visual letter strings is unclear. Here we tested 39 children longitudinally, at the beginning of grade 1 (6.45 ± 0.33 years old) and 1 year after, with fast periodic visual stimulation in electroencephalography to assess the evolution of selective neural responses to letter strings and their relationship with emerging reading abilities. At both grades, frequency-tagged letter strings were discriminated from pseudofont strings (i.e. letter-selectivity) over the left occipito-temporal cortex, with effects observed at the individual level in 62% of children. However, visual words were not discriminated from pseudowords (lexical access) at either grade. Following 1 year of schooling, letter-selective responses showed a specific increase in amplitude, a more complex pattern of harmonics, and were located more anteriorly over the left occipito-temporal cortex. Remarkably, at both grades, neural responses were highly significant at the individual level and correlated with individual reading scores. The amplitude increase in letter-selective responses between grades was not found for discrimination responses of familiar keyboard symbols from pseudosymbols, and was not related to a general increase in visual stimulation responses. These findings demonstrate a rapid onset of left hemispheric letter selectivity, with 1 year of reading instruction resulting in increased emerging reading abilities and a clear quantitative and qualitative evolution within left hemispheric neural circuits for reading. [less ▲]

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See detailOrdinos: A Verifiable Tally-Hiding E-Voting System
Mueller, Johannes UL

in Küsters, Ralf; Liedtke, Julian; Mueller, Johannes (Eds.) et al IEEE European Symposium on Security and Privacy (2020)

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See detailThe Relationship Between the Benton Face Recognition Test and Electrophysiological Unfamiliar Face Individuation Response as Revealed by Fast Periodic Stimulation.
Dzhelyova, Milena; Schiltz, Christine UL; Rossion, Bruno

in Perception (2020), 49(2), 210-221

A recent approach to implicitly study face recognition skills has been the fast periodic visual stimulation (FPVS) coupled with electroencephalography (EEG). Its relationship with explicit behavioral ... [more ▼]

A recent approach to implicitly study face recognition skills has been the fast periodic visual stimulation (FPVS) coupled with electroencephalography (EEG). Its relationship with explicit behavioral measures of face individuation remains largely undocumented. We evaluated the relationship of the FPVS–EEG measure of individuation and performance at a computer version of the Benton Face Recognition Test. High-density EEG was recorded in 32 participants presented with an unfamiliar face at a rate of 6Hz (F) for 60 s. Every five faces, new identities were inserted. The resulting 1.2 Hz (F/5) EEG response and its harmonics objectively indexed rapid individuation of unfamiliar faces. The robust individuation response, observed over occipitotemporal sites, was significantly correlated with speed, but not accuracy rate of the computer version of the Benton Face Recognition Test. This effect was driven by a few individuals who were particularly slow at the behavioral test and also showed the lowest face individuation response. These results highlight the importance of considering the time taken to recognize a face, as a complementary to accuracy rate variable, providing valuable information about one’s recognition skills. Overall, these observations strengthen the diagnostic value of FPVS–EEG as an objective and rapid flag for specific difficulties at individual face recognition in the human population. [less ▲]

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See detailAttack-Defence Frameworks: Argumentation-Based Semantics for Attack-Defence Trees.
Gabbay, Dov M. UL; Horne, Ross James UL; Mauw, Sjouke UL et al

in Graphical Models for Security - 7th International Workshop (2020)

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See detailSoK: Techniques for Verifiable Mix Nets
Mueller, Johannes UL

in Haines, Thomas; Mueller, Johannes (Eds.) IEEE Computer Security Foundations Symposium (2020)

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