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See detailWhen less is more: Investigating factors influencing the distraction effect of virtual reality from pain
Barcatta, Katharina; Holl, Elisabeth UL; Battistutta, Layla UL et al

in Frontiers in Pain Research (2022), 2

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See detailInterpolating Nonadiabatic Molecular Dynamics Hamiltonian with Artificial Neural Networks
Bipeng Wang; Weibin Chu; Tkatchenko, Alexandre UL et al

in Journal of Physical Chemistry Letters (2022)

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See detailMAGNETOHYDRODYNAMIC ENHANCED ENTRY SYSTEM FOR SPACE TRANSPORTATION (MEESST) AS A KEY BUILDING BLOCK FOR LOW-COST INTERPLANETARY MISSIONS
La Rosa Betancourt, Manuel; Collier-Wright, Marcus; Boegel, Elias et al

in Journal of the British Interplanetary Society (2022), 74(12), 448-453

Aside from the launch environment, atmospheric re-entry imposes one of the most demanding environments which a spacecraft can experience. The combination of high spacecraft velocity and the presence of ... [more ▼]

Aside from the launch environment, atmospheric re-entry imposes one of the most demanding environments which a spacecraft can experience. The combination of high spacecraft velocity and the presence of atmospheric particles leads to partially ionised gas forming around the vehicle, which significantly inhibits radio communications, and leads to the generation of high thermal loads on the spacecraft surface. Currently, the latter is solved using expensive, heavy, and often expendable thermal protection systems (TPS). The use of electromagnetic fields to exploit Magnetohydrodynamic (MHD) principles has long been considered as an attractive solution for this problem. By displacing the ionised gas away from the spacecraft, the thermal loads can be reduced, while also opening a magnetic window for radio waves, mitigating the blackout phenomenon. The application of this concept has to date not been possible due to the large magnetic fields required, which would necessitate the use of exceptionally massive and power-hungry copper coils. High Temperature Superconductors (HTS) have now reached industrial maturity. HTS coils can now offer the necessary low weight and compactness required for space applications. The MEESST consortium the has been awarded a grant from the EU Horizon 2020 programme for the development and demonstration of a novel HTS-based re-entry system based with its foundation on MHD principles. The project will first harmonize existing numerical codes, and then design, manufacture, and test a HTS magnet. The study shows that the use of MEESST technology can have a positive impact on the cost-effectiveness and available payload of interplanetary missions. [less ▲]

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See detailCritical Review of the ATAD Implementation: The Implementation of the ATAD in Luxembourg
Pantazatou, Aikaterini UL

in Intertax (2022), 50(1), 56-65

This article examines the implementation of the ATAD in Luxembourg. Specifically, it analyses all the additions and amendments that had to be made into Luxembourg law, due to the ATAD. It does so in an ... [more ▼]

This article examines the implementation of the ATAD in Luxembourg. Specifically, it analyses all the additions and amendments that had to be made into Luxembourg law, due to the ATAD. It does so in an analytical and critical manner by going through all ATAD anti-avoidance provisions and examining the way they were implemented into Luxembourg law and how they differentiate from the previous rules (if they existed at all). It also critically assesses whether these changes have given rise to any inconsistencies or remaining questions. [less ▲]

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See detailIntergenerationality in the light of indeterminacy
Boulanger, Dany; Albert, Isabelle UL; Abbey, Emily

in Integrative Psychological and Behavioral Science (2022), 56(1),

This Special Issue aims to shed light on the undetermined nature of intergenerational trajectories. Indeterminacy has been suggested to the author as an avenue to tackle the dynamic aspect –which entails ... [more ▼]

This Special Issue aims to shed light on the undetermined nature of intergenerational trajectories. Indeterminacy has been suggested to the author as an avenue to tackle the dynamic aspect –which entails looking at tensions in an unfolding process— of intergenerationality. We present the paper in this Special Issue by insisting on their main contributions, we identify HOW they define the concept of generation, particularly in reference to indeterminacy. [less ▲]

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See detailFrom hybrid polariton to dipolariton using non-Hermitian Hamiltonians to handle particle lifetimes
Chenu, Aurélia UL; Shiau, Shiue-Yuan; Chien, Ching-Hang et al

in Physical Review. B, Condensed Matter (2022)

We consider photons strongly coupled to the excitonic excitations of a coupled quantum well, in the presence of an electric field. We show how, under a field increase, the hybrid polariton made of a ... [more ▼]

We consider photons strongly coupled to the excitonic excitations of a coupled quantum well, in the presence of an electric field. We show how, under a field increase, the hybrid polariton made of a photon coupled to hybrid carriers lying in the two wells transforms into a dipolariton made of a photon coupled to direct and indirect excitons. We also show how the cavity photon lifetime and the coherence time of the carrier wave vectors that we analytically handle through non-hermitian Hamiltonians affect these polaritonic states. While the hybrid polaritons display a spectral singularity where the eigenvalues coalesce, known as an exceptional point, that depends on detuning and lifetimes, we find that the three dipolaritonic states display an anticrossing without exceptional point due to the interaction between photons, direct, and indirect excitons. [less ▲]

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See detailHow injury prevention programs are being structured and implemented worldwide: An international survey of sports physical therapists
Ley, Christophe UL; Mendonça, Luciana D.; Schuermans, Joke et al

in Physical Therapy in Sport (2022), 53

Objective To identify the role of sports physical therapists (PT) in the injury prevention process and to compare the structure of preventive programs and associated (organization) policies applied in ... [more ▼]

Objective To identify the role of sports physical therapists (PT) in the injury prevention process and to compare the structure of preventive programs and associated (organization) policies applied in athletic organizations and sports teams of varying gender and level world-wide. Design: cross-sectional study. Setting LimeSurvey platform. Participants Sports PT working with athletes invited through the International Federation of Sports Physical Therapy. Main outcome measures Sports injury prevention program (IPP) structure and implementation. Results 414 participants fully participate in this survey study. Athlete's injury history (68.84%), the most common injuries within the sport modality (67.87%) and athlete's preseason screening results (64.01%) were most frequently used to customize IPPs. Warm-up (70.04%) and individually PT-guided exercise-therapy (70.04%) were the preferred methods to organize the prevention routine. The main barrier for IPP implementation was lack of time within the athlete's weekly training schedule (66.66%). The majority of the participants (72.84%) reported to evaluate the perception of IPP's effect by comparing current and preceding seasons' injury occurrences. Conclusion These survey results are the first identifying contemporary sports injury prevention organization and implementation policies on an international level. This information might support the sports PT community in improving and standardizing IPP (implementation) strategies worldwide. [less ▲]

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See detailHow injury registration and preseason assessment are being delivered : an international survey of sports physical therapists
Ley, Christophe UL; Mendonça, Luciana D.; Schuermans, Joke et al

in Physical Therapy in Sport (2022), 53

Objective To identify the role of sports physical therapists (PT) in the organization of injury registration and preseason assessment, applied in athletic organizations and sports teams of different ... [more ▼]

Objective To identify the role of sports physical therapists (PT) in the organization of injury registration and preseason assessment, applied in athletic organizations and sports teams of different gender and level world-wide. Design cross-sectional study. Setting LimeSurvey platform. Participants Sports PTs working with athletes invited through International Federation of Sports Physical Therapy. Main outcome measures injury registration and athlete's screening. Results 414 sports PTs participated in this international survey (mean age of 37.66 (SD = 9.38) years). 340 participants indicated that the PT as the responsible for injury registration. Barriers to properly register injury throughout the season were indicated by 157 sports PT and 86 (54.77%) indicated a lack of time on their routine as the main factor. 93 participants (30.09%) indicated that they customize the prevention program based on the preseason assessment. Sports PTs who reported not performing a preseason assessment (92 participants - 22.22%) mainly indicated this to be consequence of lack of structure in the organization (44 participants – 47.82%). Conclusion The majority of the sports PTs participate on injury registration and perform preseason assessment in athletes. However, lack of time in their routine and structure in the organization were recognized as the most important barriers to organize these properly. [less ▲]

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See detailMoral minds in gaming – A quantitative case study of moral decisions in Detroit: Become Human
Holl, Elisabeth UL; Melzer, André UL

in Journal of Media Psychology (2022)

Games including meaningful narratives and moral decisions have become increasingly popular. This case study examines (a) the prevalence of morality and moral foundations, (b) player decisions when ... [more ▼]

Games including meaningful narratives and moral decisions have become increasingly popular. This case study examines (a) the prevalence of morality and moral foundations, (b) player decisions when encountering moral options, and (c) the influence of contextual factors (i.e., time pressure, played avatar, and humanness of nonplayable characters) on moral decision-making in the popular video game Detroit: Become Human. Based on extensive coding of available world statistics we identified 73.21% morally relevant (vs. morally irrelevant) decisions in the game with a high prevalence for harm- and authority-related situations. Although players had an overall tendency to engage in moral behavior, they were more likely to act “good” when under time pressure and if nonhuman characters were involved. Our findings are discussed with regard to common theories of morality. Results support the notion that prior theoretical assumptions may be successfully mapped onto top-selling video games. [less ▲]

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See detailNeed for Cognition and its relation to academic achievement in different learning environments
Colling, Joanne UL; Wollschläger, Rachel UL; Keller, Ulrich UL et al

in Learning and Individual Differences (2022), 93

The present study investigates how Need for Cognition (NFC), an individual's tendency to engage in and enjoy thinking, relates to academic achievement in 9th grade students (N = 3.355) attending different ... [more ▼]

The present study investigates how Need for Cognition (NFC), an individual's tendency to engage in and enjoy thinking, relates to academic achievement in 9th grade students (N = 3.355) attending different school tracks to understand whether school track moderates this relation when controlling for student background variables. Using structural regression analyses, our findings revealed small and significant positive relations between NFC and academic achievement in German, French and Math. Relations were strongest in the highest and weakest in the lowest track. No significant track difference between the highest and the intermediary track could be identified; significant differences of small effect size between the intermediary and the lowest track were found in favor of the intermediary track in the relation between NFC and academic achievement in German and Math. These findings underpin the importance of NFC in academic settings, while highlighting that the relation between NFC and achievement varies with the characteristics of different learning environments. [less ▲]

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See detailNormative Coherence for Development and Regionalism: Gender equality in ASEAN’s migration policies
Häbel, Sandra; Koff, Harlan UL; Adam, Marie

in Development Policy Review (2022)

Motivation:The United Nations2030 Agenda recognizesregions as important actors in implementing the sustainable development agenda.At the same time, regions are often criticized for lackingeffective ... [more ▼]

Motivation:The United Nations2030 Agenda recognizesregions as important actors in implementing the sustainable development agenda.At the same time, regions are often criticized for lackingeffective implementation, especially in relation to gender equality.Purpose:This study examines whether the Association of Southeast Asian Nations (ASEAN) implements its global commitment to gender equality at a regional level. Methods and approach:We apply qualitative analysis of key ASEAN documents in order to determinehow gender equality is implemented regionally. We particularly focus onframeworks related to female migrant workers in ASEAN. Findings: The analysis shows that ASEAN is formally committed to improving gender equality at a regional level, however, female migrants often end up in unfavourable conditions and precarious work relationships without any institutionalized protection because ASEAN's gender equality initiatives are largely concentrated in the Cultural Community and absent from the Economic Community, indicating an absence of normative coherence for developmentwith regard to gender equality. Policy implications:This limited impact of emerging regional commitments to gender equality arises from incoherencies in ASEAN’s normative governance. [less ▲]

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See detailLeveraging stretching directions for stationkeeping in Earth-Moon halo orbits
Muralidharan, Vivek UL; Howell, Kathleen C.

in Advances in Space Research (2022), 69(1), 620-646

Near Rectilinear Halo Orbits (NRHOs) are stable or nearly stable orbits that are defined as part of the L1 and L2 halo orbit families in the circular restricted three-body problem. Within the Earth-Moon ... [more ▼]

Near Rectilinear Halo Orbits (NRHOs) are stable or nearly stable orbits that are defined as part of the L1 and L2 halo orbit families in the circular restricted three-body problem. Within the Earth-Moon regime, the L1 and L2 NRHOs are proposed as long horizon trajectories for cislunar exploration missions, including NASA’s upcoming Gateway mission. The spacecraft, however, incurs continuous deviations due to unmodeled forces and orbit determination errors in this dynamically sensitive region. The current investigation focuses on an impulsive stationkeeping technique to maintain the spacecraft near a virtual reference orbit despite these uncertainties. The flow dynamics in the region are utilized to identify appropriate maneuver and target locations. The investigation reflects the impact of various factors on maneuver cost and efficacy. For orbits where position and velocity states are particularly sensitive to epoch time, an additional feedback control strategy is applied for phasing constraints. [less ▲]

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See detailMännerbund, Staatsschiff, Multitude. U-Boote und Raumfahrzeuge als politische Körper
Gradinari, Irina; Pause, Johannes UL

in COLLATERAL: Online Journal for Cross-Cultural Close Reading (2022), 32

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See detailUncertainty-driven symmetry-breaking and stochastic stability in a generic differential game of lobbying
Boucekkine, Raouf; Fabien, Prieur; Ruan, Weihua et al

in Economic Theory (2022)

We study a 2-players stochastic differential game of lobbying. Players invest in lobbying activities to alter the legislation in her own benefit. The payoffs are quadratic and uncertainty is driven by a ... [more ▼]

We study a 2-players stochastic differential game of lobbying. Players invest in lobbying activities to alter the legislation in her own benefit. The payoffs are quadratic and uncertainty is driven by a Wiener process. We consider the Nash symmetric game where players face the same cost and extract symmetric payoffs, and we solve for Markov Perfect Equilibria (MPE) in the class of affine functions. First, we prove a general sufficient (catching up) optimality condition for two-players stochastic games with uncertainty driven by Wiener processes. Second, we prove that the number and nature of MPE depend on the extent of uncertainty (i.e the variance of the Wiener processes). In particular, we prove that while a symmetric MPE always exists, two asymmetric MPE emerge if and only if uncertainty is large enough. Third, we study the stochastic stability of all the equilibria. We notably find, that the state converges to a stationary invariant distribution under asymmetric MPE. Fourth, we study the implications for rent dissipation asymptotically and compare the outcomes of symmetric vs asymmetric MPE in this respect, ultimately enhancing again the role of uncertainty. [less ▲]

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See detailIntroduction to Smart Cities in Transition: Challenges of Participation in Urban Environments
Papangelis, Konstantinos; Saker; Leork, Dale et al

in International Journal of Human-Computer Interaction (2022)

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See detailThe Myth of Beirut’s Resilience: Introduction to the Thematic Issue
Buccianti-Barakat, Liliane; Hesse, Markus UL

in Urban Planning (2022), 7(1), 82-86

This editorial introduces a thematic issue of Urban Planning on recent developments in Beirut, Lebanon. It emphasises the multiple crises the city has been undergoing for some time, which include an ... [more ▼]

This editorial introduces a thematic issue of Urban Planning on recent developments in Beirut, Lebanon. It emphasises the multiple crises the city has been undergoing for some time, which include an enduring political and economic crisis, the impact of the Covid‐19 pandemic, and most recently the devastating impact of the blast that happened in the port of Beirut on 4th August 2020. The editorial outlines the specific challenges resulting from these crises and addresses the concept of resilience, which is taken up by the articles included in this issue. [less ▲]

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See detailFostering experimental and computational synergy to modulate hyperinflammation
Del Sol Mesa, Antonio UL

in Trends in Immunology (2022), 43(1),

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See detailOpinion Statement ECJ-TF 2/2021 on the ECJ Decision of 25 February 2021 in Société Générale (Case C-403/19) on the Calculation of the Maximum Amount of a Foreign Direct Tax Credit
Kofler, Georg; Garcia Prats, Alfredo; Haslehner, Werner UL et al

in European Taxation (2022)

The Court’s decision in Société Générale reinforces established case law that EU law neither prohibits juridical double taxation nor does it impose an obligation on the residence Member State to prevent ... [more ▼]

The Court’s decision in Société Générale reinforces established case law that EU law neither prohibits juridical double taxation nor does it impose an obligation on the residence Member State to prevent the disadvantages that could arise from the exercise of competence thus attributed by the two Member States. The parallel existence of taxing jurisdiction, however, must be distinguished from the exercise of such jurisdiction by each Member State. While Member States are free to determine the connecting factors for the allocation of taxing jurisdiction in tax treaties, in exercising the “power of taxation, so allocated by bilateral conventions for the avoidance of double taxation, the Member States must comply with EU rules and, more particularly, observe the principle of equal treatment”. It is generally accepted in the Court’s case law that both the ordinary credit and exemption (including exemption with progression) methods are permissible to avoid double taxation. In Société Générale, this position was confirmed, specifically as regards the “maximum deduction” under the ordinary credit method in tax treaties, even though this treatment can result in a disadvantage for cross-border income as compared with domestic income. As the disadvantage in Société Générale was due to the difference between gross-basis taxation of dividends in the source Member States (Italy, the Netherlands and the United Kingdom) and net-basis taxation of those foreign-sourced dividends in the residence state (France), it remains to be seen whether or not future cases will bring clarity in light of the Seabrokers decision of the EFTA Court, which examined how expenses can be lawfully allocated to foreign income from the perspective of the residence Member State. [less ▲]

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See detailFair power allocation in cooperative cognitive systems under NOMA transmission for future IoT networks
Ali, Zain; Khan, Wali Ullah UL; Sardar Sidhu, Guftaar Ahmad et al

in Alexandria Engineering Journal (2022)

To support the massive connectivity in Internet of Things (IoT), several promising techniques like cognitive radio (CR) and non-orthogonal multiple access (NOMA) enables the user to share spectrum ... [more ▼]

To support the massive connectivity in Internet of Things (IoT), several promising techniques like cognitive radio (CR) and non-orthogonal multiple access (NOMA) enables the user to share spectrum resources. This work aims to achieve fairness among secondary users (SUs) in IoT cooperative NOMA-based CR transmission. We design a power allocation algorithm, an independent battery constraint at each node is considered, and power gap among transmissions of two NOMA users is applied for successive interference cancellation. The simulation results show that the proposed framework provides excellent performance and for sufficient available transmission power perfect fairness is achieved. [less ▲]

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See detailFrom communities to protein complexes: A local community detection algorithm on PPI networks
Dilmaghani, Saharnaz; Brust, Mathias UL; Ribeiro, Carlos H. et al

in PLoS ONE (2022), 17(1), 1-17

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See detailComparison of high-performance and conventional internal insulation materials based on hygrothermal analysis using in situ measurements and simulation
Latz, Sebastian UL; Maas, Stefan UL; Scholzen, Frank UL et al

in Bauphysik (2022), 1

Following the European directive to reduce CO2 emissions of existing buildings by improving energy efficiency, internal insulation systems play a central role in the renovation of historically valuable ... [more ▼]

Following the European directive to reduce CO2 emissions of existing buildings by improving energy efficiency, internal insulation systems play a central role in the renovation of historically valuable buildings which cannot be insulated from the outside for reasons of monumental protection, or in cases where no additional exterior space is available. However, besides the thermal property of insulation systems, there are other relevant properties to be considered before choosing an internal insulation system, such as the hygrothermal behavior which plays a particularly important role in diffusion-open interior insulation systems. As the internal insulation layer reduces the temperature of the existing wall during the heating season, its drying potential after rain events is considerably reduced. In addition to the effects of moisture from the outside (mainly wind driven rain), the entry of humidity from the inside through diffusion plays an important role. In the presented study, high performance insulation materials with nanostructure based on silicon dioxide and polyurethane are compared to conventional material based on wood fiber from a hygrothermal point of view by analyzing in situ measurements and simulations. [less ▲]

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See detailChronique de droit des marchés financiers
Conac, Pierre-Henri UL

in Revue des Sociétés (2022)

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See detailBritish Borders
Steveker, Lena UL; Frenk, Joachim

in Journal for the Study of British Cultures (2022), 29(1), 142

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See detailGreenhouse gas emission reduction in residential buildings: A lightweight model to be deployed on edge devices
Ortiz, Paul; Kubler, Sylvain UL; Rondeau, Éric et al

in Journal of cleaner production (2022), 368

Keywords Greenhouse gas emission; Energy efficiency; Photovoltaics; Battery; Edge computing; Linear programming Electricity produced and used in the residential sector is responsible for approximately 30 ... [more ▼]

Keywords Greenhouse gas emission; Energy efficiency; Photovoltaics; Battery; Edge computing; Linear programming Electricity produced and used in the residential sector is responsible for approximately 30% of the greenhouse gas emissions (GHGE). Insulating houses and integrating renewable energy and storage resources are key for reducing such emissions. However, it is not only a matter of installing renewable energy technologies but also of optimizing the charging/discharging of the storage units. A number of optimization models have been proposed lately to address this problem. However, they are often limited in several respects: (i) they often focus only on electricity bill reduction, placing GHGE reduction on the backburner; (ii) they rarely propose hybrid-energy storage optimization strategies considering thermal and storage heater units; (iii) they are often designed using Linear Programming (LP) or metaheuristic techniques that are computational intensive, hampering their deployment on edge devices; and (iv) they rarely evaluate how the model impacts on the battery lifespan. Given this state-of-affairs, the present article compares two approaches, the first one proposing an innovative sliding grid carbon intensity threshold algorithm developed as part of a European project named RED WoLF, the second one proposing an algorithm designed based on LP. The comparison analysis is carried out based on two distinct real-life scenarios in France and UK. Results show that both algorithms contribute to reduce GHGE compared to a solution without optimization logic (between 10 to 25%), with a slight advantage for the LP algorithm. However, RED WoLF makes it possible to reduce significantly the computational time ([almost equal to]25 min for LP against [almost equal to]1 ms for RED WoLF) and to extend the battery lifespan (4 years for LP against 12 years for RED WoLF). Author Affiliation: (a) Université de Lorraine, CNRS, CRAN, F-54000, France (b) Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, L-1359 Esch-sur-Alzette, Luxembourg (c) Department of Industrial and Systems Engineering, Rochester Institute of Technology, 81 Lomb Memorial Drive, Rochester, NY 14623, United States (d) School of Built Environment, Engineering and Computing, Leeds Beckett University, Leeds, LS1 3HE, UK * Corresponding author. Article History: Received 12 March 2022; Revised 3 June 2022; Accepted 8 July 2022 (miscellaneous) Handling Editor: Panos Seferlis Byline: Paul Ortiz [paul.ortiz@univ-lorraine.fr] (a,*), Sylvain Kubler [s.kubler@univ-lorraine.fr] (a,b), Éric Rondeau [eric.rondeau@univ-lorraine.fr] (a), Katie McConky [ktmeie@rit.edu] (c), Alexander Alexandrovich Shukhobodskiy [A.Shukhobodskiy@leedsbeckett.ac.uk] (d), Giuseppe Colantuono [G.Colantuono@leedsbeckett.ac.uk] (d), Jean-Philippe Georges [jean-philippe.georges@univ-lorraine.fr] (a) [less ▲]

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See detailDer Witz der Urteilskraft. Zur politischen Dimension des Humors
Mein, Georg UL

in andererseits – Yearbook of Transatlantic German Studies (2022), 9/10

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See detailAge at onset as stratifier in idiopathic Parkinson's disease - effect of ageing and polygenic risk score on clinical phenotypes
Pavelka, Lukas; Rauschenberger, Armin UL; Landoulsi, Zied UL et al

in NPJ Parkinson's Disease (2022), 9(8), 102

Several phenotypic differences observed in Parkinson's disease (PD) patients have been linked to age at onset (AAO). We endeavoured to find out whether these differences are due to the ageing process ... [more ▼]

Several phenotypic differences observed in Parkinson's disease (PD) patients have been linked to age at onset (AAO). We endeavoured to find out whether these differences are due to the ageing process itself by using a combined dataset of idiopathic PD (n = 430) and healthy controls (HC; n = 556) excluding carriers of known PD-linked genetic mutations in both groups. We found several significant effects of AAO on motor and non-motor symptoms in PD, but when comparing the effects of age on these symptoms with HC (using age at assessment, AAA), only positive associations of AAA with burden of motor symptoms and cognitive impairment were significantly different between PD vs HC. Furthermore, we explored a potential effect of polygenic risk score (PRS) on clinical phenotype and identified a significant inverse correlation of AAO and PRS in PD. No significant association between PRS and severity of clinical symptoms was found. We conclude that the observed non-motor phenotypic differences in PD based on AAO are largely driven by the ageing process itself and not by a specific profile of neurodegeneration linked to AAO in the idiopathic PD patients. [less ▲]

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See detailQuantum collisional thermostats
Tabanera, Jorge; Luque, In Ifmmode Acutee Elseé Fis; Jacob, Samuel L. et al

in New J. Phys. (2022), 24(2), 023018

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See detailReliability and entropy production in nonequilibrium electronic memories
Freitas, Nahuel; Proesmans, Karel; Esposito, Massimiliano UL

in Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics (2022), 105(3), 034107

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See detailLow-Complexity Antenna Selection and Discrete Phase-Shifts Design in IRS-Assisted Multiuser Massive MIMO Networks
Abdullah, Zaid UL; Chen, Gaojie; Lambotharan, Sangarapillai et al

in IEEE Transactions on Vehicular Technology (2022)

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See detailHomecare and artificial intelligence: a European Human right perspective
Antunes, Théo UL

in Italian Labour Law e-studies (2022)

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See detailIncome Inequality, Productivity, and International Trade
Picard, Pierre M UL

in Economic Theory (2022)

This paper studies the effect of income inequality on selection and aggregate productivity in a general equilibrium model with non-homothetic preferences and product quality. The model matches the ... [more ▼]

This paper studies the effect of income inequality on selection and aggregate productivity in a general equilibrium model with non-homothetic preferences and product quality. The model matches the empirical fact that an increase in income shifts one’s consumption towards goods that have higher quality both at the intensive and extensive margins. It also implies a negative relationship between the number and quantity of goods consumed by an income group and the earnings of other income groups. The central result is that a mean-preserving spread of the income distribution negatively affects aggregate productivity through the softening of firms’ selection. In the presence of international trade, this effect is amplified with lower trade barriers or a larger number of trade partners. Furthermore, the model implies that the domestic expenditure shares and welfare gains from trade are constant across income groups. A simple quantitative exercise suggests that an income redistribution like the one induced by the US Federal taxes and transfers raises average productivity by about 3%. [less ▲]

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See detailWhat Do They Want from a Career? University Students’ Future Career Expectations and Resources in a Health Crisis Context
Pignault, Anne; Vayre, Emilie; Houssemand, Claude UL

in Sustainability (2022), 14(24),

Young people and students, in particular, have often been presented as being particularly affected by the health crisis and its various psychological, social, and economic consequences. In this context ... [more ▼]

Young people and students, in particular, have often been presented as being particularly affected by the health crisis and its various psychological, social, and economic consequences. In this context, the present study sought to better understand the links between the anxiety generated by this crisis regarding one’s professional future, the resources available, and future career expectations. A total of 585 higher education students participated in the study during the third lockdown in France and completed a questionnaire that focused on anxiety and apprehension about the future, psychological and adaptative resources, and preferences for dimensions of new careers (kaleidoscopic, sustainable, protean, boundaryless, and opportunistic). The results show, on the one hand, significant links between anxiety, optimism, hope, career adaptability and preferences expressed for dimensions of new careers; on the other hand, dimensions that are more preferred than others. Finally, these results will be discussed in relation to the correlations already highlighted in the literature between individuals and career expectations, and to the more global reflection on the future of work. Possible avenues in the field of career counselling will be proposed. [less ▲]

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See detailReview - Cristina Ferreira, Ludovic Maugué, Sandrine Maulini, L’homme-bus : une histoire des controverses psychiatriques (1960-1980)
Majerus, Benoît UL

in Crime, Histoire and Sociétés (2022), 26(1), 123-124

Le 10 janvier 1986, Martial Richoz est placé de force à l’hôpital psychiatrique de Cery, dans la banlieue de Lausanne. Ce jeune homme se promenait depuis plusieurs années avec un trolleybus en miniature ... [more ▼]

Le 10 janvier 1986, Martial Richoz est placé de force à l’hôpital psychiatrique de Cery, dans la banlieue de Lausanne. Ce jeune homme se promenait depuis plusieurs années avec un trolleybus en miniature dans les rues de sa ville, déguisé en chauffeur des transports lausannois. Son enfermement se transforme en affaire juridique, médiatique et politique. Ce moment est l’occasion pour Cristina Ferreira, Ludovic Maugué et Sandrine Maulini de retracer « une histoire des controverses psychiatriques... [less ▲]

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See detailThe impact of COVID-19 lockdown stringency on loneliness in five European countries
Caro, Juan Carlos; Clark, Andrew; d'Ambrosio, Conchita UL et al

in Social Science and Medicine (2022)

Rationale: The coronavirus pandemic has forced governments to implement a variety of different dynamic lockdown-stringency strategies in the last two years. Extensive lockdown periods could have potential ... [more ▼]

Rationale: The coronavirus pandemic has forced governments to implement a variety of different dynamic lockdown-stringency strategies in the last two years. Extensive lockdown periods could have potential unintended consequences on mental health, at least for at-risk groups. Objective: We present novel evidence on the heterogeneous direct and indirect effects of lockdown-stringency measures on individuals’ perception of social isolation (i.e. loneliness) using panel data from five European countries (Germany, France, Spain, Italy and Sweden), which tracks changes in both in-person and remote social interactions between May 2020 and March 2021. Method: We combine data from the COME-HERE panel survey (University of Luxembourg) and the Oxford COVID-19 Government Response Tracker (OxCGRT). We implement a dynamic mixture model in order to estimate the loneliness sub-population classes based on the severity of loneliness, as well as the evolution of social interactions. Results: While loneliness is remarkably persistent over time, we find substantial heterogeneity across individuals, identifying four latent groups by loneliness severity. Group membership probability varies with age, gender, education and cohabitation status. Moreover, we note significant differences in the impact of social interactions on loneliness by degree of severity. Older people are less likely to feel lonely, but were more affected by lockdown measures, partly due to a reduction in face-to-face interactions. On the contrary, the younger, especially those living alone, report high levels of loneliness that are largely unaffected by changes in the pandemic after lockdown measures were initially implemented. Conclusions: Understanding the heterogeneity in loneliness is key for the identification of at-risk populations that can be severely affected by extended lockdown measures. As part of public-health crisis-response systems, it is critical to develop support measures for older individuals living alone, as well as promoting continuous remote communication for individuals more likely to experience high levels of loneliness. [less ▲]

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See detailQuantum scattering as a work source
Jacob, Samuel L.; Esposito, Massimiliano UL; Parrondo, Juan M. R. et al

in Quantum (2022), 6

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See detailDescribing UI Screenshots in Natural Language
Leiva, Luis A. UL; Hota; Oulasvirta, Antti

in ACM Transactions on Intelligent Systems and Technology (2022)

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See detailSupply chain design for industrial additive manufacturing
Friedich, Anne; Lange, Anne UL; Elbert, Ralf

in International Journal of Operations and Production Management (2022)

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See detailA Sustainability-Centric Methodology for the Shunt-in Shunt-out Problem
Tommaso, Bosi; Bigi, Federico UL

in Transport research Arena (2022)

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See detailBody-First Subtype of Parkinson's Disease with Probable REM-Sleep Behavior Disorder Is Associated with Non-Motor Dominant Phenotype
Pavelka, Lukas; Rauschenberger, Armin UL; Landoulsi, Zied UL et al

in Journal of Parkinson's Disease (2022)

Background: The hypothesis of body-first vs. brain-first subtype of PD has been proposed with REM-Sleep behavior disorder (RBD) defining the former. The body-first PD presumes an involvement of the ... [more ▼]

Background: The hypothesis of body-first vs. brain-first subtype of PD has been proposed with REM-Sleep behavior disorder (RBD) defining the former. The body-first PD presumes an involvement of the brainstem in the pathogenic process with higher burden of autonomic dysfunction. Objective: To identify distinctive clinical subtypes of idiopathic Parkinson’s disease (iPD) in line with the formerly proposed concept of body-first vs. brain-first subtypes in PD, we analyzed the presence of probable RBD (pRBD), sex, and the APOE ɛ4 carrier status as potential sub-group stratifiers. Methods: A total of 400 iPD patients were included in the cross-sectional analysis from the baseline dataset with a completed RBD Screening Questionnaire (RBDSQ) for classifying as pRBD by using the cut-off RBDSQ≥6. Multiple regression models were applied to explore (i) the effect of pRBD on clinical outcomes adjusted for disease duration and age, (ii) the effect of sex on pRBD, and (iii) the association of APOE ɛ4 and pRBD. Results: iPD-pRBD was significantly associated with autonomic dysfunction (SCOPA-AUT), level of depressive symptoms (BDI-I), MDS-UPDRS I, hallucinations, and constipation, whereas significantly negatively associated with quality of life (PDQ-39) and sleep (PDSS). No significant association between sex and pRBD or APOE ɛ4 and pRBD in iPD was found nor did we determine a significant effect of APOE ɛ4 on the PD phenotype. Conclusion: We identified an RBD-specific PD endophenotype, characterized by predominant autonomic dysfunction, hallucinations, and depression, corroborating the concept of a distinctive body-first subtype of PD. We did not observe a significant association between APOE ɛ4 and pRBD suggesting both factors having an independent effect on cognitive decline in iPD. [less ▲]

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See detailExploiting plasmonic enhancement with light-emitting diode excitation in surface-enhanced Raman scattering
Wasserroth, Sören; Gordeev, Georgy UL; Juergensen, Sabrina et al

in Journal of Raman Spectroscopy (2022), (April), 1--6

Surface-enhanced Raman scattering (SERS) is a well-established technique that enables the detection of very low molecular concentrations down to single molecules. Typical applications of SERS are the ... [more ▼]

Surface-enhanced Raman scattering (SERS) is a well-established technique that enables the detection of very low molecular concentrations down to single molecules. Typical applications of SERS are the consistent identification of various samples used in chemistry, biology, and physics among others. In contrast to common SERS setups, where lasers are used as excitation source, we exploit SERS to perform Raman spectroscopy with a light-emitting diode (LED). We demonstrate the applicability of our approach on four different Raman reporters. We unambiguously distinguish two similar designer molecules 4-nitrothiophenol (p-NTP) and 5,5-dithio-bis-(2-nitrobenzoic acid) (DTNB) that are often used in SERS experiments. Additionally, we probe Rhodamine 6G that is used in many different applications and carbon nanotubes as a one-dimensional solid state nanosystem. The LED excited surface-enhanced Raman spectra reproduce the characteristic Raman modes of the different samples. We compare the LED spectra to Raman spectra excited with a laser at the same wavelength. We envision the combination of LED sources with SERS substrates in the next generation of handheld devices and low-cost Raman setups. [less ▲]

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See detailDLT for Cross-Border Payment Efficiency – a legal and regulatory perspective
Zetzsche, Dirk Andreas UL; Anker-Sørensen, Linn; Wehrli, Thomas et al

in Law and Financial Markets Review (2022), 15(1:2), 70-115

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See detailCharacteristics associated with COVID‑19 vaccine hesitancy
Borga, Liyousew UL; Clark, Andrew; d'Ambrosio, Conchita UL et al

in Scientific Reports (2022)

Understanding what lies behind actual COVID-19 vaccine hesitancy is fundamental to help policy makers increase vaccination rates and reach herd immunity. We use June 2021 data from the COME-HERE survey to ... [more ▼]

Understanding what lies behind actual COVID-19 vaccine hesitancy is fundamental to help policy makers increase vaccination rates and reach herd immunity. We use June 2021 data from the COME-HERE survey to explore the predictors of actual vaccine hesitancy in France, Germany, Italy, Luxembourg, Spain and Sweden. We estimate a linear-probability model with a rich set of covariates and address issues of common-method variance. 13% of our sample say they do not plan to be vaccinated. Post-Secondary education, home-ownership, having an underlying health condition, and one standard-deviation higher age or income are all associated with lower vaccine hesitancy of 2–4.5% points. Conservative-leaning political attitudes and a one standard-deviation lower degree of confidence in the government increase this probability by 3 and 6% points respectively. Vaccine hesitancy in Spain and Sweden is significantly lower than in the other countries. [less ▲]

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See detailCloud removal from satellite imagery using multispectral edge-filtered conditional generative adversarial networks
Hasan, Cengis; Horne, Ross James UL; Mauw, Sjouke UL et al

in International Journal of Remote Sensing (2022), 43(5), 1881-1893

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See detailIntroducing the DHARPA Project: An Interdisciplinary Lab to Enable Critical DH Practice
Viola, Lorella UL; Cunningham, Angela; Jaskov, Helena UL et al

in DH Benelux Journal (2022), 4(1), 29-41

In this article, we introduce software under development by the Digital History Advanced Research Projects Accelerator (DHARPA), an interdisciplinary team of researchers and developers working to enable ... [more ▼]

In this article, we introduce software under development by the Digital History Advanced Research Projects Accelerator (DHARPA), an interdisciplinary team of researchers and developers working to enable best practices in the humanities through technology. We argue that the strength and appeal of historical inquiry lies largely in the relationship between scholars and their sources, a connection in which the former engage with the latter through critical assessment, contextualisation and documentation. However, we also contend that these symbiotic processes themselves need to be evaluated and recorded. While digital tools and techniques have been accused of alienating historians from their materials, critically informed digital methodologies can also fortify and extend this relationship. To that end, we are building software that will enable users to not only apply best practices to their sources but also to allow them to write the history of those interactions, thus providing material for self-reflection and critique. In this article, having laid out our goal, we describe how the modular and datacentric design of our software’s backend and the interactive documentary capabilities of its frontend operationalize a critical epistemology centered on the scholar-source relationship. We continue with a discussion of our team’s internal dynamics in creating this software, and conclude with an invitation to readers to contribute to the process through commentary and testing. [less ▲]

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See detailBenchmarking quantum annealing dynamics: The spin-vector Langevin model
Subires, David; Gómez-Ruiz, Fernando J.; Ruiz-García, Antonia et al

in Physical Review Research (2022)

The classical spin-vector Monte Carlo (SVMC) model is a reference benchmark for the performance of a quantum annealer. Yet, as a Monte Carlo method, SVMC is unsuited for an accurate description of the ... [more ▼]

The classical spin-vector Monte Carlo (SVMC) model is a reference benchmark for the performance of a quantum annealer. Yet, as a Monte Carlo method, SVMC is unsuited for an accurate description of the annealing dynamics in real-time.We introduce the spin-vector Langevin (SVL) model as an alternative benchmark in which the time evolution is described by Langevin dynamics. The SVL model is shown to provide a more stringent test than the SVMC model for the identification of quantum signatures in the performance of quantum annealing devices, as we illustrate by describing the Kibble-Zurek scaling associated with the dynamics of symmetry breaking in the transverse field Ising model, recently probed using D-Wave machines. Specifically, we show that D-Wave data are reproduced by the SVL model. [less ▲]

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See detailKinetic and energetic insights into the dissipative non-equilibrium operation of an autonomous light-powered supramolecular pump
Corra, Stefano; Baki, Marina Tranfi; Groppi, Jessica et al

in Nature Nanotechnology (2022)

Natural and artificial autonomous molecular machines operate by constantly dissipating energy coming from an external source to maintain a non-equilibrium state. Quantitative thermodynamic ... [more ▼]

Natural and artificial autonomous molecular machines operate by constantly dissipating energy coming from an external source to maintain a non-equilibrium state. Quantitative thermodynamic characterization of these dissipative states is highly challenging as they exist only as long as energy is provided. Here we report on the detailed physicochemical characterization of the dissipative operation of a supramolecular pump. The pump transduces light energy into chemical energy by bringing self-assembly reactions to non-equilibrium steady states. The composition of the system under light irradiation was followed in real time by 1H NMR for four different irradiation intensities. The experimental composition and photon flow were then fed into a theoretical model describing the non-equilibrium dissipation and the energy storage at the steady state. We quantitatively probed the relationship between the light energy input and the deviation of the dissipative state from thermodynamic equilibrium in this artificial system. Our results provide a testing ground for newly developed theoretical models for photoactivated artificial molecular machines operating away from thermodynamic equilibrium. [less ▲]

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See detail“Italy, for example, is just incredibly stupid now”. European crisis narrations in relation to Italy’s response to COVID-19
Viola, Lorella UL

in Frontiers in Communication (2022)

Crisis narratives shape public understanding and, consequently, the response to the crisis itself. In the context of the COVID-19 pandemic, when in February 2020 Italy was experiencing more cases than any ... [more ▼]

Crisis narratives shape public understanding and, consequently, the response to the crisis itself. In the context of the COVID-19 pandemic, when in February 2020 Italy was experiencing more cases than any other country, the Italian response to the crisis originated debates over how to best respond to the outbreak. Informed by Critical Discourse Analysis theory and using narrative networks as a framework for the critical analysis of narratives, this study analyzes the discourse strategies employed by experts, politicians and other social actors from Spain, France, the Netherlands, and the UK when presenting their domestic measures in relation to Italy's response to coronavirus. The analysis shows that the narratives attached to nation-specific decisions were highly culturalized and connected to country-specific shared experiences, such as a sense of national exceptionalism built in opposition with the denigration of Italy as the Other-identity. Attribution of blame and blameworthiness was also found to be a common pattern across countries according to which Italians were framed as wrongdoers but also as deserving blame. The article also presents a comprehensive “timeline of narratives” which opens avenues for a critical reflection on the impact such narratives may have had on the understanding of the crisis, including the creation of a negative climate of division and inappropriate crisis responses. [less ▲]

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See detailDigitally driven energy management practices in SMEs - exploring potentials and barriers
Hilger, Lukas UL; Große-Kreul, Felix; Schneiders, Thorsten et al

in Die Unternehmung: swiss journal of business research and practice (2022), 76(3), 360-380

Innovative digital technologies open up new opportunities for small and medium-sized enterprises (SMEs) to improve energy efficiency and energy management behavior. The question is: How far will SMEs be ... [more ▼]

Innovative digital technologies open up new opportunities for small and medium-sized enterprises (SMEs) to improve energy efficiency and energy management behavior. The question is: How far will SMEs be capable of profiting from the benefits of these new technologies? Using technology screening, this study identifies smart metering and mobile energy monitoring as digital technologies best addressing SMEs' specific demands. In addition, potentials and limitations of the technologies are investigated in two qualitative in-depth field trials. Barriers to adopting digitally enabled energy management practices are examined. The results indicate that visualizing energy data enables SMEs to pursue new energy management practices for reducing energy consumption and costs (such as peak load analysis). SMEs need extensive guidance to identify and pursue these strategies. In conclusion, an exploratory adoption model for digitally enabled energy management practices is developed. Hypotheses for future experimental studies and policy implications are derived. [less ▲]

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See detailEuropean Union ∙ The Data Act: The Next Step in Moving Forward to a European Data Space
Fernandez, Angelica UL

in European Data Protection Law Review (2022), (1), 108-114

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See detailTrade Secret Protection and R&D Investment of Family Firms
Hussinger, Katrin UL; Issah, Wunnam

in Family Business Review (2022)

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See detailUnderstanding Twenty Years of Inequality and Poverty Trends in Russia
Lisina, Anastasiya; van Kerm, Philippe UL

in Review of Income and Wealth (2022), 68(S1), 108-130

The distribution of income in Russia changed significantly over the past 25 years. This paper examines the factors that have been driving the fall in inequality and poverty over two recent decades in the ... [more ▼]

The distribution of income in Russia changed significantly over the past 25 years. This paper examines the factors that have been driving the fall in inequality and poverty over two recent decades in the Russian Federation. Changes in earnings from public and private sectors and pensions have been the main sources of changes in the income distribution between 1994 and 2015. Falling inequality and poverty were the result of a decrease in the dispersion of private sector earnings and an increase in the levels of pensions and public sector earnings. Neither the evolution of socio-demographic characteristics nor the level or structure of employment alone had big impacts. [less ▲]

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See detailImpact of COVID-19 Pandemic on (Health) Care Situation of People with Parkinson’s Disease in Germany (Care4PD)
Fründt, Odette; Hanff, Anne-Marie UL; Mai, Tobias et al

in Brain Sciences (2022), 12(1 62),

The Care4PD study examined the impact of the COVID-19 pandemic on the care situation of people (PwP) with Parkinson’s disease in Germany. A comprehensive, nationwide, anonymous questionnaire for PwP was ... [more ▼]

The Care4PD study examined the impact of the COVID-19 pandemic on the care situation of people (PwP) with Parkinson’s disease in Germany. A comprehensive, nationwide, anonymous questionnaire for PwP was distributed by the members’ journal of the German Parkinson’s Disease Association and in several PD specialized in- and outpatient institutions. PwP subjectively evaluated their general care situation and individual impairments during the pandemic. We analyzed 1269 eligible out of 1437 returned questionnaires (88.3%) and compared PwP with (p-LTC) and without (np-LTC) professional long-term care. Both groups rated the general pandemic-related consequences as being rather mild to moderate (e.g., worsening of symptom or concerns). However, familial/social contact restrictions were indicated as most compromising, whereas access to outpatient professional health care providers was less affected. PwP with professional LTC reported more impairment than those without. COVID-19 vaccination rates and acceptance were generally high (p-LTC: 64.3%, np-LTC: 52.3%) at the time of the study, but realization of sanitary measures—especially wearing masks as a patient during care sessions—still needs to be improved. Technical options for telemedicine were principally available but only rarely used. Altogether, during the COVID-19 pandemic, PwP in Germany seemed to have a relatively stable health care access, at least in outpatient settings, while mainly social isolation compromised them. The p-LTC group was more impaired in everyday live compared with the np-LTC group. [less ▲]

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See detailDoes waste management affect firm performance? International evidence
Derouiche, Imen UL; Gull, Ammar Ali; Atif, Muhammad et al

in Economic Modelling (2022), 114

This study examines an important yet underexplored aspect of firms’ sustainability practices, i.e., waste management, in order to analyze its impact on financial performance. Although the extant ... [more ▼]

This study examines an important yet underexplored aspect of firms’ sustainability practices, i.e., waste management, in order to analyze its impact on financial performance. Although the extant literature has focused on various aspects of sustainability, the impact of waste management, which has disastrous consequences for the climate and firm performance, remains largely unexplored. Thus, using the 2002–2019 data of listed firms from 41 countries, we found a significantly negative (positive) relationship between waste generation (recycling) and financial performance. Our findings are robust to alternative variables, sub-sample analysis, and identification strategies. Moreover, a channel analysis showed that this relationship is influenced by operating costs, ESG performance-based compensation, industry nature, the Paris agreement on climate change, and the global financial crisis. Overall, the findings suggest that environmental initiatives are beneficial for firms and present important policy implications for regulators and firms. [less ▲]

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See detailUser Scheduling and Power Allocation for Precoded Multi-Beam High Throughput Satellite Systems With Individual Quality of Service Constraints
Van Chien, Trinh; Lagunas, Eva UL; Ta, Tung Hai et al

in IEEE Transactions on Vehicular Technology (Early Access) (2022)

For extensive coverage areas, multi-beam high throughput satellite (HTS) communication is a promising technology that plays a crucial role in delivering broadband services to many users with diverse ... [more ▼]

For extensive coverage areas, multi-beam high throughput satellite (HTS) communication is a promising technology that plays a crucial role in delivering broadband services to many users with diverse Quality of Service (QoS) requirements. This paper focuses on multi-beam HTS systems where all beams reuse the same spectrum. In particular, we propose a novel user scheduling and power allocation design capable of providing guarantees in terms of the individual QoS requirements while maximizing the system throughput under a limited power budget. Precoding is employed in the forward link to mitigate mutual interference among the users in multiple-access scenarios over different coherence time intervals. The combinatorial optimization structure from user scheduling requires an extremely high cost to obtain the global optimum even when a reduced number of users fit into a time slot. Therefore, we propose a heuristic algorithm yielding a good trade-off between performance and computational complexity, applicable to a static operation framework of geostationary (GEO) satellite networks. Although the power allocation optimization is signomial programming, non-convex on a standard form, the solution can be lower bounded by the global optimum of a geometric program with a hidden convex structure. A local solution to the joint user scheduling and power allocation problem is consequently obtained by a successive optimization approach. Numerical results demonstrate the effectiveness of our algorithms on GEO satellite networks by providing better QoS satisfaction combined with outstanding overall system throughput. [less ▲]

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See detailNon-normality, topological transitivity and expanding families
Meyrath, Thierry UL; Müller, Jürgen

in Mathematical Proceedings of the Cambridge Philosophical Society (2022), 173(3), 511-523

We investigate the behaviour of families of meromorphic functions in the neighbourhood of points of non-normality and prove certain covering properties that complement Montel’s Theorem. In particular, we ... [more ▼]

We investigate the behaviour of families of meromorphic functions in the neighbourhood of points of non-normality and prove certain covering properties that complement Montel’s Theorem. In particular, we also obtain characterisations of non-normality in terms of such properties. [less ▲]

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See detailKerr and Faraday rotations in topological flat and dispersive band structures
Habibi, Alireza; Musthofa, Ahmad Z.; Adibi, Elaheh et al

in New Journal of Physics (2022), 24(6), 063003

Integer quantum Hall (IQH) states and quantum anomalous Hall (QAH) states show the same static dc response but distinct dynamical ac response. In particular, the ac anomalous Hall conductivity profile σ ... [more ▼]

Integer quantum Hall (IQH) states and quantum anomalous Hall (QAH) states show the same static dc response but distinct dynamical ac response. In particular, the ac anomalous Hall conductivity profile σ yx (ω) is sensitive to the band shape of QAH states. For example, dispersive QAH bands shows resonance profile without a sign change at the band gap while the IQH states shows the sign change resonance at the cyclotron energy. We argue by flattening the dispersive QAH bands, σ yx (ω) should recover to that of flat Landau bands in IQH, thus it is necessary to know the origin of the sign change. Taking a topological lattice model with tunable bandwidth, we found that the origin of the sign change is not the band gap but the van Hove singularity energy of the QAH bands. In the limit of small bandwidth, the flat QAH bands recovers σ yx (ω) of the IQH Landau bands. Because of the Hall response, these topological bands exhibit giant polarization rotation and ellipticity in the reflected waves (Kerr effect) and rotation in the order of fine structure constant in the transmitted waves (Faraday effect) with profile resembles σ yx (ω). Our results serve as a simple guide to optical characterization for topological flat bands. [less ▲]

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See detailSmart Scheduling (SMASCH): multi-appointment scheduling system for longitudinal clinical research studies.
Vega Moreno, Carlos Gonzalo UL; Gawron, Piotr UL; Lebioda, Jacek UL et al

in JAMIA open (2022), 5(2), 038

OBJECTIVE: Facilitate the multi-appointment scheduling problems (MASPs) characteristic of longitudinal clinical research studies. Additional goals include: reducing management time, optimizing clinical ... [more ▼]

OBJECTIVE: Facilitate the multi-appointment scheduling problems (MASPs) characteristic of longitudinal clinical research studies. Additional goals include: reducing management time, optimizing clinical resources, and securing personally identifiable information. MATERIALS AND METHODS: Following a model view controller architecture, we developed a web-based tool written in Python 3. RESULTS: Smart Scheduling (SMASCH) system facilitates clinical research and integrated care programs in Luxembourg, providing features to better manage MASPs and speed up management tasks. It is available both as a Linux package and Docker image (https://smasch.pages.uni.lu). DISCUSSION: The long-term requirements of longitudinal clinical research studies justify the employment of flexible and well-maintained frameworks and libraries through an iterative software life-cycle suited to respond to rapidly changing scenarios. CONCLUSIONS: SMASCH is a free and open-source scheduling system for clinical studies able to satisfy recent data regulations providing features for better data accountability. Better scheduling systems can help optimize several metrics that ultimately affect the success of clinical studies. [less ▲]

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See detail„Aesthetics of Color ‒ ein Kammerspiel“: Eine institutionskritische und postkoloniale Annäherung
Nonoa, Koku Gnatuloma UL

in Deutschunterricht (Der): Beiträge zu seiner Praxis und wissenschaftlichen Grundlegung (2022), 5(5),

Der vorliegende Beitrag geht auf Strategien identitärer Selbstbestimmung Schwarzer Künst-ler_innen und People of Color gegenüber hegemonialer-kapitalistischer Deutungshoheit in der Kunstszene ein ... [more ▼]

Der vorliegende Beitrag geht auf Strategien identitärer Selbstbestimmung Schwarzer Künst-ler_innen und People of Color gegenüber hegemonialer-kapitalistischer Deutungshoheit in der Kunstszene ein. Zunächst wird auf der Grundlage der Wechselwirkung zwischen ‚sozialem‘ und ‚ästhetischem Drama‘ das Verhältnis zwischen dem Entstehungs- und Produktionskontext des Theaterstückes Aesthetics of Color ‒ ein Kammerspiel untersucht. Dann bezieht sich die Analyse auf die Einbettung dieses Theaterstückes in institutionskritische, postmigrantische und postkoloniale Kontextbezüge. [less ▲]

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See detailThe DLT Sandbox under the EU Pilot Regulation
Zetzsche, Dirk Andreas UL; Woxholth, Jannik Per UL

in Capital Markets Law Journal (2022), 17(2), 212-236

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See detailSuper-Heisenberg scaling in Hamiltonian parameter estimation in the long-range Kitaev chain
Yang, Jing UL; Pang, Shengshi; Del Campo Echevarria, Adolfo UL et al

in Physical Review Research (2022)

In quantum metrology, nonlinear many-body interactions can enhance the precision of Hamiltonian parameter estimation to surpass the Heisenberg scaling. Here, we consider the the estimation of the ... [more ▼]

In quantum metrology, nonlinear many-body interactions can enhance the precision of Hamiltonian parameter estimation to surpass the Heisenberg scaling. Here, we consider the the estimation of the interaction strength in linear systems with long-range interactions and using the Kitaev chains as a case study, we establish a transition from the Heisenberg to super-Heisenberg scaling in the quantum Fisher information by varying the interaction range. We further show that quantum control can improve the prefactor of the quantum Fisher information. Our results explore the advantage of optimal quantum control and long-range interactions in many-body quantum metrology. [less ▲]

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See detailParkinson's Disease progression, resilience and inflammation markers during the COVID-19 pandemic
Pauly, Claire UL; Glaab, Enrico UL; Hansen, Maxime UL et al

in Movement Disorders (2022), in press (doi: 10.1002/mds.29212)(in press),

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See detailMarket Regulation and Innovation: Direct and Indirect Effects
Quignon, Aurelien UL

in Journal of Industry, Competition and Trade (2022)

The effects of competition regulations on innovation are, in theory, ambiguous. Using a panel of twenty-five OECD countries over 1995–2015, we estimated how domestic and foreign competition affects ... [more ▼]

The effects of competition regulations on innovation are, in theory, ambiguous. Using a panel of twenty-five OECD countries over 1995–2015, we estimated how domestic and foreign competition affects innovation. Reducing regulation intensifies domestic and foreign competition, increasing R&D expenditure and patenting. Accounting for interaction between these two sources of product market competition, we find that domestic regulation directly led to growing R&D expenditure and patent production, whereas competition from foreign regulation influences innovation toward its effect on domestic competition. [less ▲]

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See detailVariational principle for optimal quantum controls in quantum metrology
Yang, Jing UL; Pang, Shengshi; Chen, Zekai et al

in Physical Review Letters (2022)

We develop a variational principle to determine the quantum controls and initial state that optimizes the quantum Fisher information, the quantity characterizing the precision in quantum metrology. When ... [more ▼]

We develop a variational principle to determine the quantum controls and initial state that optimizes the quantum Fisher information, the quantity characterizing the precision in quantum metrology. When the set of available controls is limited, the exact optimal initial state and the optimal controls are, in general, dependent on the probe time, a feature missing in the unrestricted case. Yet, for time-independent Hamiltonians with restricted controls, the problem can be approximately reduced to the unconstrained case via Floquet engineering. In particular, we find for magnetometry with a time-independent spin chain containing three-body interactions, even when the controls are restricted to one- and two-body interaction, that the Heisenberg scaling can still be approximately achieved. Our results open the door to investigate quantum metrology under a limited set of available controls, of relevance to many-body quantum metrology in realistic scenarios. [less ▲]

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See detailDie 22. Legion, der Rhein und die Binnenschifffahrt bei den Legionen des Imperium Romanum
Groff, Thierry UL

in Mainzer Zeitschrift. Mittelrheinisches Jahrbuch für Archäologie, Kunst und Geschichte (2022), 117

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See detailCommon Universal Meromorphic Functions for Translation and Dilation Mappings
Meyrath, Thierry UL

in Computational Methods and Function Theory (2022), 22(4), 781-798

We consider translation and dilation mappings acting on the spaces of meromorphic functions on the complex plane and the punctured complex plane, respectively. In both cases, we show that there is a dense ... [more ▼]

We consider translation and dilation mappings acting on the spaces of meromorphic functions on the complex plane and the punctured complex plane, respectively. In both cases, we show that there is a dense $G_{\delta}$-subset of meromorphic functions that are common universal for certain uncountable families of these mappings. While a corresponding result for translations exists for entire functions, our result for dilations has no holomorphic counterpart. We further obtain an analogue of Ansari’s Theorem for the mappings we consider, which is used as a key tool in the proofs of our main results. [less ▲]

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See detailA Magnetohydrodynamic enhanced entry system for space transportation: MEESST
Lani, Andrea; Sharma, Vatsalya; Giangaspero, Vincent F. et al

in Journal of Space Safety Engineering (2022)

This paper outlines the initial development of a novel magnetohydrodynamic (MHD) plasma control system which aims at mitigating shock-induced heating and the radio-frequency communication blackout ... [more ▼]

This paper outlines the initial development of a novel magnetohydrodynamic (MHD) plasma control system which aims at mitigating shock-induced heating and the radio-frequency communication blackout typically encountered during (re-)entry into planetary atmospheres. An international consortium comprising universities, SMEs, research institutions, and industry has been formed in order to develop this technology within the MEESST project. The latter is funded by the Future and Emerging Technologies (FET) program of the European Commission’s Horizon 2020 scheme (grant no. 899298). Atmospheric entry imposes one of the harshest environments which a spacecraft can experience. The combination of hypersonic velocities and the rapid compression of atmospheric particles by the spacecraft leads to high-enthalpy, partially ionised gases forming around the vehicle. This inhibits radio communications and induces high thermal loads on the spacecraft surface. For the former problem, spacecraft can sometimes rely on satellite constellations for communicating through the plasma wake and therefore preventing the blackout. On the other hand, expensive, heavy, and non-reusable thermal protection systems (TPS) are needed to dissipate the severe thermal loads. Such TPS can represent up to 30% of an entry vehicles weight, and especially for manned missions they can reduce the cost- efficiency by sacrificing payload mass. Such systems are also prone to failure, putting the lives of astronauts at risk. The use of electromagnetic fields to exploit MHD principles has long been considered as an attractive solution for tackling the problems described above. By pushing the boundary layer of the ionized gas layer away from the spacecraft, the thermal loads can be reduced, while also opening a magnetic window for radio communications and mitigating the blackout phenomenon. The application of this MHD-enabled system has previously not been demonstrated in realistic conditions due to the required large magnetic fields (on the order of Tesla or more), which for conventional technologies would demand exceptionally heavy and power-hungry electromagnets. High-temperature superconductors (HTS) have reached a level of industrial maturity sufficient for them to act as a key enabling technology for this application. Thanks to superior current densities, HTS coils can offer the necessary low weight and compactness required for space applications, with the ability to generate the strong magnetic fields needed for entry purposes. This paper provides an overview of the MEESST project, including its goals, methodology and some preliminary design considerations. [less ▲]

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See detailDeveloping arithmetic skills in kindergarten through a game- based approach: a major issue for learners and a challenge for teachers
Vlassis, Joëlle UL; Baye, Ariane; Auquière, Amélie et al

in International Journal of Early Years Education (2022)

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See detailSpin-tunable thermoelectric performance in monolayer chromium pnictides
Muntini, Melania S.; Suprayoga, Edi; Wella, Sasfan A. et al

in Physical Review Materials (2022), 6

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See detailFast computation of half-integral weight modular forms
Inam, Ilker; Wiese, Gabor UL

in Rocky Mountain Journal of Mathematics (2022), 52(4), 1395-1401

To study statistical properties of modular forms, including for instance Sato-Tate like problems, it is essential to be able to compute a large number of Fourier coefficients. In this article, we show ... [more ▼]

To study statistical properties of modular forms, including for instance Sato-Tate like problems, it is essential to be able to compute a large number of Fourier coefficients. In this article, we show that this can be achieved in level 4 for a large range of half-integral weights by making use of one of three explicit bases, the elements of which can be calculated via fast power series operations. [less ▲]

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See detailExplaining the Decline in the US Labor Share: Taxation and Automation
Heer, Burkhard; Süssmuth, Bernd; Irmen, Andreas UL

in Interenational Tax and Public Finance (2022)

This study provides evidence for the USA that the secular decline in the labor share is not only explained by technical change or globalization, but also by the dynamics of factor taxation, automation ... [more ▼]

This study provides evidence for the USA that the secular decline in the labor share is not only explained by technical change or globalization, but also by the dynamics of factor taxation, automation capital (robots), and population growth. First, we empirically find indications of co-integration for the period from the last quarter of the 20th to the first decade of the twenty-first century. Permanent effects on factor shares emanate from relative factor taxation. The latter also have a lasting effect on the use of robots. Variance decompositions reveal that taxing contributes to changes in the two income shares and in automation capital. Second, we analyze and calibrate a neoclassical growth model extended to include factor taxation, automation capital, and capital adjustment costs. Labor and automation capital are perfect substitutes, whereas labor and traditional capital are complements. The model replicates the dynamics of the observed functional income distribution in the USA during the 1965–2015 period. Counterfactual experiments suggest that the fall in the labor share would have been significantly smaller if labor and capital income tax rates had remained at their respective level of the 1960s. [less ▲]

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See detailIndeterminacies and models of homotopy limits
Govzmann, Alisa UL; Pistalo, Damjan UL; Poncin, Norbert UL

in Theory and Applications of Categories (2022), 38(41), 1608-1635

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See detailBuffering variability in cell regulation motifs close to criticality
Proverbio, Daniele UL; Noronha Montanari, Arthur UL; Skupin, Alexander UL et al

in Physical Review. E. (2022)

Bistable biological regulatory systems need to cope with stochastic noise to fine tune their function close to bifurcation points. Here, we study stability properties of this regime in generic systems to ... [more ▼]

Bistable biological regulatory systems need to cope with stochastic noise to fine tune their function close to bifurcation points. Here, we study stability properties of this regime in generic systems to demonstrate that cooperative interactions buffer system variability, hampering noise-induced regime shifts. Our analysis also shows that, in the considered cooperativity range, impending regime shifts can be generically detected by statistical early warning signals from distributional data. Our generic framework, based on minimal models, can be used to extract robustness and variability properties of more complex models and empirical data close to criticality. Our generic framework, based on minimal models, can be used to extract robustness and variability properties of more complex models and empirical data close to criticality. [less ▲]

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See detailPopulation Aging and Inventive Activity
Irmen, Andreas UL; Litina, Anastasia

in Macroeconomic Dynamics (2022), 26

This research empirically establishes and interprets the hypothesis that the relationship between population aging and inventive activity is hump-shaped. We estimate a reduced form, hump-shaped ... [more ▼]

This research empirically establishes and interprets the hypothesis that the relationship between population aging and inventive activity is hump-shaped. We estimate a reduced form, hump-shaped relationship in a panel of 33 OECD countries over the period 1960–2012, as well as in a panel of 248 NUTS 2 regions in Europe over the period 2001–2012. The increasing part of the hump may be associated with various channels including the acknowledgement that population aging requires inventive activity to guarantee current and future standards of living, or the observation that older educated workers are more innovative than their young peers. The decreasing part may reflect the tendency of aging societies to lose dynamism and the willingness to take risks. [less ▲]

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See detailComprehensive physicochemical and photovoltaic analysis of different Zn substitutes (Mn, mg, Fe, Ni, Co, Ba, Sr) in CZTS-inspired thin film solar cells.
Lie, Stener; Guc, Maxim; Tunuguntla, Venkatesh et al

in Journal of Materials Chemistry (2022)

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See detailBücherschau
Steveker, Lena UL; Gruss, Susanne

in Shakespeare Jahrbuch (2022)

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See detailAdaptive Nonlinear Least Squares Framework for Contactless Vital Sign Monitoring
Tedgue Beltrao, Gabriel UL; Alves Martins, Wallace UL; Mysore Rama Rao, Bhavani Shankar UL et al

in IEEE Transactions on Microwave Theory and Techniques (2022)

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See detailActive Terminal Identification, Channel Estimation, and Signal Detection for Grant-Free NOMA-OTFS in LEO Satellite Internet-of-Things
Zhou, Xingyu; Ying, Keke; Gao, Zhen et al

in IEEE Transactions on Wireless Communications ( Early Access ) (2022)

This paper investigates the massive connectivity of low Earth orbit (LEO) satellite-based Internet-of-Things (IoT) for seamless global coverage. We propose to integrate the grant-free non-orthogonal ... [more ▼]

This paper investigates the massive connectivity of low Earth orbit (LEO) satellite-based Internet-of-Things (IoT) for seamless global coverage. We propose to integrate the grant-free non-orthogonal multiple access (GF-NOMA) paradigm with the emerging orthogonal time frequency space (OTFS) modulation to accommodate the massive IoT access, and mitigate the long round-trip latency and severe Doppler effect of terrestrial–satellite links (TSLs). On this basis, we put forward a two-stage successive active terminal identification (ATI) and channel estimation (CE) scheme as well as a low-complexity multi-user signal detection (SD) method. Specifically, at the first stage, the proposed training sequence aided OTFS (TS-OTFS) data frame structure facilitates the joint ATI and coarse CE, whereby both the traffic sparsity of terrestrial IoT terminals and the sparse channel impulse response are leveraged for enhanced performance. Moreover, based on the single Doppler shift property for each TSL and sparsity of delay-Doppler domain channel, we develop a parametric approach to further refine the CE performance. Finally, a least square based parallel time domain SD method is developed to detect the OTFS signals with relatively low complexity. Simulation results demonstrate the superiority of the proposed methods over the state-of-the-art solutions in terms of ATI, CE, and SD performance confronted with the long round-trip latency and severe Doppler effect. [less ▲]

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See detailThe EU Sustainable Finance Framework in Light of International Standards
Zetzsche, Dirk Andreas UL; Bodellini, Marco UL; Consiglio, Roberta

in Journal of International Economic Law (2022), 25(4), 659679

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See detailWidely Distributed Radar Imaging: Unmediated ADMM Based Approach
Murtada, Ahmed Abdelnaser Elsayed UL; Hu, Ruizhi UL; Mysore Rama Rao, Bhavani Shankar UL et al

in IEEE Journal of Selected Topics in Signal Processing (2022)

This paper presents a novel approach to reconstruct a unique image of an observed scene via synthetic apertures (SA) generated by employing widely distributed radar sensors. The problem is posed as a ... [more ▼]

This paper presents a novel approach to reconstruct a unique image of an observed scene via synthetic apertures (SA) generated by employing widely distributed radar sensors. The problem is posed as a constrained optimization problem in which the global image which represents the aggregate view of the sensors is a decision variable. While the problem is designed to promote a sparse solution for the global image, it is constrained such that a relationship with local images that can be reconstructed using the measurements at each sensor is respected. Two problem formulations are introduced by stipulating two different establishments of that relationship. The proposed formulations are designed according to consensus ADMM (CADMM) and sharing ADMM (SADMM), and their solutions are provided accordingly as iterative algorithms. We drive the explicit variable updates for each algorithm in addition to the recommended scheme for hybrid parallel implementation on the distributed sensors and a central processing unit. Our algorithms are validated and their performance is evaluated by exploiting the Civilian Vehicles Dome dataset to realize different scenarios of practical relevance. Experimental results show the effectiveness of the proposed algorithms, especially in cases with limited measurements. [less ▲]

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See detailKara Ben Nemsi spielt Klavier. Orientalismus und Männlichkeitskrise in Karl Mays Orientzyklus (Karl May: Von Bagdad nach Stambul)
Börnchen, Stefan UL

in Zeitschrift für interkulturelle Germanistik 2022 13/01 (2022), 13/01

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See detailDie Welt vor dem Verschleiss schützen
Hertweck, Florian UL; Caye, Pierre; Panos, Mantziaras

in Arch + (2022), 250

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See detailA dichotomy for integral group rings via higher modular groups as amalgamated products
Bächle, Andreas; Janssens, Geoffrey; Jespers, Eric et al

in J. Algebra (2022), 604

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See detailFree-energy transduction in chemical reaction networks: From enzymes to metabolism
Wachtel, Artur; Rao, Riccardo; Esposito, Massimiliano UL

in J. Chem. Phys. (2022), 157(2), 024109

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See detailEmerging ecologies and changing relations: a brief manifesto for histories of education after COVID-19
Priem, Karin UL

in Paedagogica Historica (2022)

he paper draws upon photography as an active intervention into compromised environments and uses it to discover and develop new perspectives on past and future histories of education after COVID-19. These ... [more ▼]

he paper draws upon photography as an active intervention into compromised environments and uses it to discover and develop new perspectives on past and future histories of education after COVID-19. These perspectives become particularly clear when seen against the backdrop of recent discussions on planetary responsibility and shared ecologies. The paper suggests that we shift our research agendas away from anthropocentric world views that have placed great emphasis on human sovereignty, modernisation, progress and/or decline, nation states and global governance, and the stratifying effects of education systems, without reflecting their ecological consequences. It argues that anthropocentric approaches to history of education have neglected the openness and vulnerability of the human body and its ethical, cultural and social proximity to other living creatures and the material world. The paper therefore focuses on what it means for historians of education to respond to the COVID-19 crisis, what it means to change research perspectives, and what it means to look at photographs that were produced in a state of exception. The paper sets out to propose a manifesto for a post-anthropocentric research agenda that anchors history of education and the history of pandemics in intertwined ecologies of the living and material worlds. The paper suggests that future histories of education cannot be written without considering the COVID-19 crisis as both a challenge and an encouragement to further develop our understanding of education. [less ▲]

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See detailUser Scheduling and Power Allocation for Precoded Multi-Beam High Throughput Satellite Systems With Individual Quality of Service Constraints
Chien, Trinh-Van; Lagunas, Eva UL; Ta, Tung Hai et al

in IEEE Transactions on Vehicular Technology (2022)

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