References of "2021"
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See detailKummer theory for number fields via entanglement groups
Perucca, Antonella UL; Sgobba, Pietro UL; Tronto, Sebastiano UL

in Manuscripta Mathematica (2021)

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See detailEvery number is the beginning of a power of 2
Perucca, Antonella UL

Article for general public (2021)

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See detailEnhanced Nonlinear Emission from Single Multilayered Metal−Dielectric Nanocavities Resonating in the Near-Infrared
Maccaferri, Nicolò UL; Zilli, Attilio; Isoniemi, Tommi et al

in ACS Photonics (2021), 8(2), 512-520

Harmonic generation mechanisms are of great interest in nanoscience and nanotechnology, since they allow generating visible light by using near-infrared radiation, which is particularly suitable for its ... [more ▼]

Harmonic generation mechanisms are of great interest in nanoscience and nanotechnology, since they allow generating visible light by using near-infrared radiation, which is particularly suitable for its countless applications in bionanophotonics and optoelectronics. In this context, multilayer metal−dielectric nanocavities are widely used for light confinement and waveguiding at the nanoscale. They exhibit intense and localized resonances that can be conveniently tuned in the near-infrared and are therefore ideal for enhancing nonlinear effects in this spectral range. In this work, we experimentally investigate the nonlinear emission properties of multilayer metal−dielectric nanocavities. By engineering their absorption efficiency and exploiting their intrinsic interface-induced symmetry breaking, we achieve an almost 2 orders of magnitude higher second-harmonic generation efficiency compared to gold nanostructures featuring the same geometry and optical resonant behavior. In particular, while both the third-order nonlinear susceptibility and conversion efficiency are comparable with those of the Au nanoresonators, we estimate a second-order nonlinear susceptibility of the order of 1 pm/V, which is comparable with that of typical nonlinear crystals. We envision that our system, which combines the advantages of both plasmonic and dielectric materials, might enable the realization of composite and multifunctional nanosystems for the efficient manipulation of nonlinear optical processes at the nanoscale. [less ▲]

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See detailColor Vision: Decoding Color Space
Retter, Talia UL; Webster, Michael A.

in Current Biology (2021), 31(3), 122-124

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See detailInstitutional characteristics of education systems and inequalities—Introduction I
Gross, Christiane; Hadjar, Andreas UL

in International Journal of Comparative Sociology (2021), early online

This is the introduction into the first of multiple themed issues of International Journal of Comparative Sociology (IJCS) that are dedicated to the role of education systems as institutional settings on ... [more ▼]

This is the introduction into the first of multiple themed issues of International Journal of Comparative Sociology (IJCS) that are dedicated to the role of education systems as institutional settings on the reproduction of inequalities. While Introduction I presents the research program, outlines a conceptual background and discusses methodological challenges in the study of how education systems shape inequalities, introductions to the successive themed issues will deal with the current state-of-research and finally with research desiderata in terms of an outlook. The contributions will be presented at the end of each introduction. The contributions of this themed issue focus on the role of country characteristics during early childhood and the role of shadow education on educational inequalities. [less ▲]

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See detailThe role of score and information bias in panel data likelihoods
Schumann, Martin; Severini, Thomas A.; Tripathi, Gautam UL

E-print/Working paper (2021)

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See detailApproximation of Fractional Local Times: Zero Energy and Derivatives
Jaramillo Gil, Arturo UL; Nourdin, Ivan UL; Peccati, Giovanni UL

in Annals of Applied Probability (2021), In press

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See detail§§ 6 bis 15 WpHG betreffend die Eingriffsbefugnisse der BaFin und Positionskontrollen
Zetzsche, Dirk Andreas UL; Lehmann, Mattias

in Schwark; Zimmer (Eds.) Kapitalmarktrechtskommentar (2021)

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See detailEinleitung, §§ 4 -9, 16, 29 bis 39c, 59 bis 68 des Wertpapiererwerbs- und Übernahmegesetzes
Zetzsche, Dirk Andreas UL; Noack

in Kapitalmarktrechtskommentar (2021)

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See detailReconciling Blockchain with the GDPR: Insights from the German Asylum Procedure
Rieger, Alexander UL; Stohr, Alexander; Wenninger, Annette et al

in Blockchain and the Public Sector: Theories, Reforms, and Case Studies (2021)

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See detail(Re)créer l’histoire des femmes. La biofiction au service du genre
Barthelmebs-Raguin, Hélène UL

in Revue Critique de Fixxion Française Contemporaine (2021), 21

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See detailCross-border mapping and social cohesion in border areas
Connor, Ulla UL

Presentation (2021)

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See detailCrisis? What Crisis? Die abendländische Rationalität im Entwicklerbad der Corona-Krise
Mein, Georg UL

in Mein, Georg; Pause, Johannes (Eds.) Self and Society in the Corona Crisis Perspectives from the Humanities and Social Sciences (2021)

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See detailVerwahrung (§§ 688-700), in Erman, BGB
Zetzsche, Dirk Andreas UL

in Erman (Ed.) Verwahrung (§§ 688-700), in Erman, BGB (2021)

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See detailDesign of a 2-Bit Neural Network Quantizer for Laplacian Source
Peric, Zoran; Savic, Milan; Simic, Nikola et al

in Entropy (2021), 23(8), 933

Achieving real-time inference is one of the major issues in contemporary neural network applications, as complex algorithms are frequently being deployed to mobile devices that have constrained storage ... [more ▼]

Achieving real-time inference is one of the major issues in contemporary neural network applications, as complex algorithms are frequently being deployed to mobile devices that have constrained storage and computing power. Moving from a full-precision neural network model to a lower representation by applying quantization techniques is a popular approach to facilitate this issue. Here, we analyze in detail and design a 2-bit uniform quantization model for Laplacian source due to its significance in terms of implementation simplicity, which further leads to a shorter processing time and faster inference. The results show that it is possible to achieve high classification accuracy (more than 96% in the case of MLP and more than 98% in the case of CNN) by implementing the proposed model, which is competitive to the performance of the other quantization solutions with almost optimal precision. [less ▲]

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See detailOn the construct validity of interoceptive accuracy based on heartbeat counting: cardiovascular determinants of absolute and tilt-induced change scores
Schulz, André UL; Back, Sarah N.; Schaan, Violetta K. et al

in Biological Psychology (2021), 164(1), 108168

Interoceptive accuracy (IAcc) as assessed with the heartbeat counting task (IAccHBCT) may be affected by a range of factors including (1.) the ability to adequately detect cardiac signals, indicated by ... [more ▼]

Interoceptive accuracy (IAcc) as assessed with the heartbeat counting task (IAccHBCT) may be affected by a range of factors including (1.) the ability to adequately detect cardiac signals, indicated by IAcc in a heartbeat discrimination task (IAccHBDT), (2.) cardiac signal properties, affected by sympathetic and parasympathetic tone, and (3.) non-interoceptive processes, including time estimation accuracy (TEAcc). In the current study we investigated the contribution of these factors to absolute and Δ IAccHBCT scores, induced by passive head-up and head-down tilt in 49 healthy individuals. A set of hierarchical regression models showed IAccHBDT scores as the strongest and, across different orthostatic (tilt) conditions, most stable (positive) predictor of absolute and Δ IAccHBCT scores. Neither indicators of cardiac signal properties (except for HR in head-down-tilt), nor TEAcc predicted absolute or Δ IAccHBCT scores. These findings support the convergent and discriminant validity of absolute and Δ IAccHBCT scores. [less ▲]

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See detailInteroception in preschoolers: New insights into its assessment and relations to emotion regulation and stress
Opdensteinen, Kim D.; Schaan, Luca; Pohl, Anna et al

in Biological Psychology (2021), 165(1), 108166

Interoception may play an important role for emotion regulation and stress, thereby affecting mental health in children and adults. Yet, little is known on interoception in preschool children. Therefore ... [more ▼]

Interoception may play an important role for emotion regulation and stress, thereby affecting mental health in children and adults. Yet, little is known on interoception in preschool children. Therefore, we investigated interoceptive accuracy using the adapted Jumping Jack Paradigm (JJP) and its relationship with emotion regulation and stress. In Study I, 40 preschoolers completed the JJP and an emotion regulation task, demonstrating a positive relationship between interoceptive accuracy and emotion regulation at trend level (R² = 0.231, p = .023; β = .278, p = .073). In Study II, 31 preschoolers completed the adapted JJP before and after an acute laboratory stress test. Higher total cortisol output following acute stress induction were associated with reduced interoceptive accuracy (r = -0.670, p = .017). Extending earlier findings in adults and school-children, the relationship of interoceptive accuracy with emotion regulation and stress highlights the importance to investigate interoception in early childhood. [less ▲]

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