cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Field-tunable Berezinskii-Kosterlitz-Thouless correlations in a Heisenberg magnet
Creators: name: Opherden, D.
name: Tepaske, M. S. J.
name: Bärtl, F.
name: Weber, M.
name: Turnbull, M. M.
name: Lancaster, T.
name: Blundell, S. J.
name: Baenitz, M.
name: Wosnitza, J.
name: Landee, C. P.
name: Moessner, R.
name: Luitz, D. J.
name: Kühne, H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the manifestation of field-induced Berezinskii-Kosterlitz-Thouless (BKT) correlations in the weakly coupled spin-1/2 Heisenberg layers of the molecular-based bulk material [Cu(pz)$_2$(2-HOpy)$_2$](PF$_6$)$_2$. Due to the moderate intralayer exchange coupling of $J/k_\mathrm{B} = 6.8$ K, the application of laboratory magnetic fields induces a substantial $XY$ anisotropy of the spin correlations. Crucially, this provides a significant BKT regime, as the tiny interlayer exchange $J^\prime / k_\mathrm{B} \approx 1$ mK only induces 3D correlations upon close approach to the BKT transition with its exponential growth in the spin-correlation length. We employ nuclear magnetic resonance and $μ^{+}$SR measurements to probe the spin correlations that determine the critical temperatures of the BKT transition as well as that of the onset of long-range order. Further, we perform stochastic series expansion quantum Monte Carlo simulations based on the experimentally determined model parameters. Finite-size scaling of the in-plane spin stiffness yields excellent agreement of critical temperatures between theory and experiment, providing clear evidence that the nonmonotonic magnetic phase diagram of [Cu(pz)$_2$(2-HOpy)$_2$](PF$_6$)$_2$ is determined by the field-tuned $XY$ anisotropy and the concomitant BKT physics.
description: 10 pages, 7 figures
Effects of Screening on Propagation of Graphene Surface Plasmons
Creators: name: Sasaki, Ken-ichi
name: Kumada, Norio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electromagnetic fields bound tightly to charge carriers in a two-dimensional sheet, namely surface plasmons, are shielded by metallic plates that are a part of a device. It is shown that for epitaxial graphenes, the propagation velocity of surface plasmons is suppressed significantly through a partial screening of the electron charge by the interface states. On the basis of analytical calculations of the electron lifetime determined by the screened Coulomb interaction, we show that the screening effect gives results in agreement with those of a recent experiment.
description: 7 pages, 4 figures
Faulting, basin formation and orogenic arcuation at the Dinaric–Hellenic junction (northern Albania and Kosovo)
Creators: name: Grund, Marc U.
name: Handy, Mark R.
name: Giese, Jörg
name: Gemignani, Lorenzo
name: Pleuger, Jan
name: Onuzi, Kujtim
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Dinarides
subject: Hellenides
subject: Orogenic arcuation
subject: Neogene basins
subject: Oroclines
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: The Dinaric–Hellenic mountain belt bends where two fault systems transect the orogen: (1) the dextral Shkoder-Peja Transfer Zone (SPTZ), active sometime between the Late Cretaceous and middle Eocene; (2) the Shkoder-Peja Normal Fault (SPNF), which accommodated NW–SE directed orogen-parallel extension. The SPTZ dextrally offsets the Dinaric–Hellenic nappes by ~ 75 km, a displacement attributed to reactivation of an Early Mesozoic rift transfer zone in the Adriatic margin during Paleogene subduction of the Pindos Ocean. This subduction involved an initial counter-clockwise rotation of the Hellenides with respect to the Dinarides around a pole at the NW end of the Budva–Krasta–Cukali–Pindos Basin. The SPNF overprints the SPTZ and is a composite structure comprising five fault segments: four of them (Cukali–Tropoja, Decani, Rožaje, Istog) were active under ductile-to-brittle conditions. They downthrow the West Vardar Ophiolite in the hanging wall. The Cukali–Tropoja and Decani segments exhume domes with anchizonal-to-greenschist-facies metamorphism in their footwalls. These structures formed during a first-phase of extension and clockwise rotation, whose Paleocene age is constrained by cross-cutting relationships. A second extensional phase was accommodated mainly by the fifth (Dukagjini) segment of the SPNF, a subsurface normal fault bordering syn-rift, mid-late Miocene clastic and lacustrine sediments in the Dukagjini Basin (DB) that are sealed by Plio-Pleistocene strata. This later phase involved subsidence of Neogene basins at the Dinaric–Hellenic junction coupled with accelerated clockwise oroclinal bending. The driving force for clockwise rotation is thought to be bending and rollback of the untorn part of the Adriatic slab beneath the Hellenides.
Transition énergétique et Covid 19
Creators: name: Jean-Eudes Moncomble
Publisher: name: SEE
Year: 2021

description: La pandémie de Covid-19 a bouleversé nos économies et nos modes de vie, mais l’urgence climatique est toujours là. De nouvelles incertitudes, sanitaires, économiques, politiques et sociétales compliquent la lutte contre le changement climatique et obligent à plus d’efficacité et de réalisme, de coopération et de solidarité.
Les câbles électriques pour l’énergie
Les câbles électriques de puissance, une clé pour la transition énergétique
Creators: name: Meyer, Bruno
Publisher: name: SEE
Year: 2021

description: La transition énergétique est un sujet bien connu. La part croissante de l’énergie éolienne ou solaire y est immédiatement associée. Mais pour que cette transition réussisse, une technologie fondamentale est nécessaire : les câbles électriques. Les câbles sont souterrains ou sous-marins, ils raccordent les pays entre eux et permettent de raccorder les parcs éoliens au réseau. Ils doivent transiter de fortes puissances à haute tension. Le présent dossier dresse un panorama des principales avancées dans ce domaine, en les illustrant par des projets précis : interconnexions internationales, raccordement des éoliennes en mer tant posées que flottantes, ou encore un éclairage sur la supraconductivité.
Holographic Entanglement Entropy and Complexity for D-Wave Superconductors
Creators: name: Xu, Yuanceng
name: Shi, Yu
name: Wang, Dong
name: Pan, Qiyuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By using the RT formula and the subregion CV conjecture respectively, we numerically investigate the holographic entanglement entropy (HEE) and holographic subregion complexity (HSC) for two holographic d-wave superconducting models with backreactions. We find that both the HEE and HSC can be used as good probes to these two d-wave superconducting phase transitions. The HEE of superconducting phase is always lower than that of the normal phase due to the condensation of degrees of freedom below the critical temperature Tc. However, for the HSC, it behaves differently and interestingly, which depends on both the strip-width Lx and backreaction \k{appa}.
description: 22pages,8 figures,4 sections,1 appendix
NEMO link – The world first DC 400 kV XLPE cable link (UK-Belgium)
Creators: name: Shinia Asai
name: Miyazaki, Takuya
name: Nishikawa, Satoshi
name: Igi, Tsuyoshi
Publisher: name: SEE
Year: 2021

description: For the first time in the world, DC 400 kV XLPE cable was introduced to a long distance interconnector transmission line which carries 1050 MW between UK and Belgium. It is expected this technology will contribute to further development of offshore wind farms and interconnectors between countries for security of important energy.
Curvature and dynamical spacetimes: can we peer into the quantum regime?
Creators: name: Cardoso, Vitor
name: Hilditch, David
name: Marouda, Krinio
name: Natário, José
name: Sperhake, Ulrich
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Stationary compact astrophysical objects such as black holes and neutron stars behave as classical systems from the gravitational point of view. Their (observable) curvature is everywhere "small". Here we investigate whether mergers of such objects, or other strongly dynamical spacetimes such as collapsing configurations, may probe the strong-curvature regime of General Relativity. Our results indicate that dynamical black hole spacetimes always result in a modest increase $\sim 3$ in the Kretschmann scalar, relative to the stationary state. Our results show that the Kretschmann scalar can dynamically increase by orders of magnitude, during the gravitational collapse of scalar fields, and that the (normalized) peak curvature does not correspond to that of the critical solution. Nevertheless, without fine tuning of initial data, this increase lies far below that needed to render quantum-gravity corrections important.
description: 8 pages, 5 figures
Nouvelle génération d’isolants XLPE
un élément fondamental de la transition énergétique
Creators: name: Villgot Englund
name: Loyens, Wendy
name: Nilsson, Ulf
name: Bailleul, Marc
Publisher: name: SEE
Year: 2021

description: Le transport d’électricité en courant continu (DC) est une pièce essentielle des stratégies de développement des réseaux électriques. Les technologies associées ont fortement progressé au cours des 25 dernières années. Parmi elles, les matériaux utilisés pour l’isolation des câbles constituent l’un des éléments critiques en termes de performance et de fiabilité. Borealis, leader mondial du secteur, revient sur différentes étapes de développement de ces isolants, et en particulier sur la dernière génération de matériaux conçue pour accompagner le développement des réseaux électriques du futur.
Higgs branch localization of $\mathcal{N}=1$ theories on $S^3 \times S^1$
Creators: name: Peelaers, Wolfger
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the method of Higgs branch localization to the $\mathcal{N}=1$ supersymmetric partition function on $S^3\times S^1.$ As a result, we show that it can be written as the product of an elliptic vortex and anti-vortex partition function summed over a finite number of Higgs vacua.
description: 29 pages; v2: minor improvements, references added
Spiral instabilities: Mode saturation and decay
Creators: name: Sellwood, J A
name: Carlberg, R G
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper continues a series reporting different aspects of the behaviour of disc galaxy simulations that support spiral instabilities. The focus in this paper is to demonstrate how linear spiral instabilities saturate and decay, and how the properties of the disc affect the limiting amplitude of the spirals. Once again, we employ idealized models that each possess a single instability that we follow until it has run its course. Remarkably, we find a tight correlation between the growth rate of the mode and its limiting amplitude, albeit from only six simulations. We show that non-linear orbit deflections near corotation cause the mode to saturate, and that the more time available in a slowly-growing mode creates the critical deflections at lower amplitude. We also find that scattering at the inner Lindblad resonance is insignificant until after the mode has saturated. Our objective in this series of papers, which we believe we have now achieved, has been to develop a convincing and well-documented account of the physical behaviour of the spiral patterns that have been observed in simulations by others, and by ourselves, for many decades. Understanding the simulations is an important step towards the greater objective, which is to find observational evidence from galaxies that could confront the identified mechanism.
description: 13 pages, 13 figures, to appear in MNRAS, corrected Fig 13 only
Asymptotically safe dark matter with gauged baryon number
Creators: name: Boos, Jens
name: Carone, Christopher D.
name: Donald, Noah L.
name: Musser, Mikkie R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the inclusion of TeV-scale, fermionic dark matter in an asymptotically safe model of gauged baryon number that has been recently proposed [Phys. Rev. D 106, no. 3, 035015 (2022)]. The new gauge boson serves as a portal between the dark and the visible sectors. The range of the baryon number gauge coupling and the kinetic mixing between baryon number and hypercharge are constrained by the requirement that nontrivial ultraviolet fixed points are reached. We show that this asymptotically safe dark matter model can achieve the correct dark matter relic density while remaining consistent with direct detection bounds.
description: 14 pages, LaTeX, 3 figures. v2: references added
Enjeux et défis des câbles dynamiques pour les éoliennes flottantes
Creators: name: Chrétien, Antoine
Publisher: name: SEE
Year: 2021

description: Issus des développements techniques réalisés par l’industrie pétrolière offshore, les câbles dynamiques apparaissent aujourd’hui comme une brique technologique indispensable pour le développement de l’éolien flottant à grande échelle. Contrairement aux câbles électriques utilisés dans l’éolien posé, ils font l’objet d’une conception très axée sur la fiabilité mécanique, au point d’influencer la conception de la plate-forme flottante à laquelle ils sont raccordés.
Des systèmes de câbles toujours plus compétitifs et écologiques pour le transport d’électricité
Creators: name: Dumont, Adrian
name: Mangoni, Marzia
name: Marelli, Marco
Publisher: name: SEE
Year: 2021

description: Un état des lieux des innovations technologiques des systèmes de câbles au service de la transition énergétique : des câbles haute tension à courant continu (HVDC) avec isolation extrudée recyclable (propylène HPTE) jusqu’à la connexion de parcs éoliens flottants offshore toujours plus éloignés des côtes et dans des eaux toujours plus profondes grâce aux câbles dynamiques et aux armures synthétiques.
Services in a research infrastructure - an attempt to review current definitions and their implications
Creators: name: Barbot, Laure
name: Scharnhorst, Andrea
Publisher: name: Zenodo
Year: 2020
Subjects: Research Infrastructure
service
ERIC
DARIAH

description: Services are one of the defining elements for research infrastructures, but how to define a service is less clear. In the broadest sense any support for research practices at different stages (as described in the Scholarly Primitives) can be perceived as a service. If we follow the definition of research infrastructures as knowledge infrastructures [1] than both support of the staff working in and with the infrastructure and all the equipment they work with potentially count as service. In DARIAH's strategic plan, services are defined exactly in this broad sense. As DARIAH pillars via which services are provided we find the Marketplace; Working groups; Foresight; and Education/Training [2]. In each of the pillars the provision of the service materialises by a combination of IT based components and other forms of support (such as enabling activities, knowledge exchange, network activities, funding etc.). What is further agreed upon is that (a) research infrastructures for post-modern research are usually distributed, networked structures and that (b) research infrastructures follow a complex architecture with different roles, stakeholders and perspectives involved [3]. For the daily practice of an ERIC as DARIAH is it important to shape a shared understanding how the high-level definition of the services (DARIAH pillar's) translates into concrete services as build in member countries (DARIAH contributions), by projects (pilots of services), in Working groups, and other actors inside of DARIAH (as by participating institutions). This paper explores different ways to define and order services, applying different dimensions (such as geographic spread, addressed knowledge domain, maturity, envisioned audience, etc.). We start from existing definitions of services as for the European Open Science Cloud, or IT services in general, zoom into current DARIAH-wide applied definitions (as from projects such as HaS, DESIR and SSHOC), and test them with existing services (as propagated via the DARIAH website, or collected in the DARIAH contribution tool). By a clearer understanding of the different nature of services we aim to support decision of what services to foster, innovate, and maintain on which level, by which means, and in which time frame. Acknowledgement: This abstract bases on the draft White paper ‘Towards a concise DARIAH service strategy' with contributions from DARIAH DCO and JRC members.
Swissdox@LiRI + Nexis Data Lab: Plattformen für Text-Data-Mining in den Geistes-und Kulturwissenschaften
Creators: name: Woitas, Kathi
Publisher: name: Zenodo
Year: 2022
Subjects: Text Mining
TDM Platform
Media Content
Digital Scholarship Services
Text as Data
Research Data
Newspapers
Digital Humanities

description: Text- und Data-Mining (TDM) wird zunehmend als Forschungsmethode in den Geistes- und Kulturwissenschaften eingesetzt. Die Universitätsbibliothek Bern stellt zu diesem Zweck zwei Plattformen zur Verfügung, die die Analyse grosser Textmengen von Schweizer und internationalen Medieninhalten ermöglichen. In der Coffee Lecture werden Inhalt und Funktionsumfang der beiden TDM-Plattformen Swissdox@LiRI und Nexis Data Lab vorgestellt und deren Nutzung erläutert. Text and data mining (TDM) is increasingly used as a research method in the humanities and cultural studies. For this purpose, the Unversity Library Bern provides two platforms that enable the analysis of large amounts of text from Swiss and international media. In the Coffee Lecture, the content and range of functions of the two TDM platforms Swissdox@LiRI and Nexis Data Lab will be presented and their use explained.
Electrophysiological evidence for sensitization effects elicited by concurrent social threats
Creators: name: Niedeggen, Michael
name: Fang, Xu
name: Yang, Yu-Fang
name: Kerschreiter, Rudolf
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Cognitive neuroscience
subject: Neuroscience
subject: Psychology
subject: FOS: Psychology
subject: Social behaviour
subject: Social neuroscience
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Experiencing a social threat, such as social exclusion, is a painful event. In contrast to previous studies providing insight into the processing of a single short-termed threat, we exposed healthy individuals to the simultaneous onset of different social threats. This approach allowed us to track whether these threats are processed independently—or whether they interact in a common system. Using a virtual ball-throwing game (Cyberball), electrophysiological (event-related brain potentials, ERPs) and behavioral (self-reports) responses were collected. We assigned undergraduates to three experimental groups: single threat exclusion (n = 24), single threat loss of control (n = 26), and joint onset of both threats (dual-threat, n = 25). Self-reports indicated an increase in threats (i.e., in perceived exclusion and loss-of-control) in the latter group. The ERPs disentangled the neural responses to each threat: In the dual-threat group, the amplitudes of the P3 responses to exclusionary and intervention events were enhanced. This indicates that individuals are sensitized to each of the threats when the other threat is present simultaneously. Our findings support the theoretical notion of a common cognitive system responding to violations in subjective expectations.
Radio Emission of Nearby Early-type Galaxies at Low and Very-Low Radio Luminosity Range
Creators: name: Wójtowicz, Anna
name: Stawarz, Łukasz
name: Cheung, C. C.
name: Werner, Norbert
name: Rudka, Dominik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyze radio continuum emission of early-type galaxies with dynamical measurements of central super-massive black hole (SMBH) masses, and well-characterized large-scale environments, but regardless on the exact level of the nuclear activity. The 1.4 GHz radio fluxes collected with $\sim$arcmin resolution for 62 nearby targets (distances $\lesssim$ 153 Mpc), correspond to low and very low monochromatic luminosities $L_{\rm r} \sim 10^{35} - 10^{41}$ erg s$^{-1}$. We quantify possible correlations between the radio properties with the main parameters of supermassive black holes, host galaxies, and hot gaseous halos, finding a general bimodality in the radio luminosity distribution, with the borderline between ``radio-bright'' and ``radio-dim'' populations $\log L_{\rm r} / L_{\rm Edd} \simeq -8.5$. We analyze the far-infrared data for the targets, finding that all radio-bright sources, and over a half of radio-dim ones, are over-luminous in radio with respect to the far-infrared--radio correlation. High-resolution radio maps reveal that the overwhelming majority of radio-dim sources are unresolved on arcsecond scale, while the bulk of radio-bright sources display extended jets and lobes of low- and intermediate-power radio galaxies; those jets dominate radio emission of radio-bright objects. Regarding the origin of the radio emission of radio-dim sources, we discuss the two main possibilities. One is the ADAF model, in which the radio and the nuclear X-ray radiative outputs at very low accretion rates, are both dominated by unresolved jets. The other possibility is that the radio-dim sources, unlike the radio-bright ones, are characterized by low values of SMBH spins, so that their radio emission is not related to the jets, but instead is due to a combination of starforming processes and past nuclear outbursts.
description: revised version accepted for publication in the Astrophysical Journal
Valley-antisymmetric potential in graphene under dynamical deformation
Creators: name: Sasaki, Ken-ichi
name: Tokura, Yasuhiro
name: Gotoh, Hideki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: When graphene is deformed in a dynamical manner, a time-dependent potential is induced for the electrons. The potential is antisymmetric with respect to valleys, and some straightforward applications are found for Raman spectroscopy. We show that a valley-antisymmetric potential broadens Raman $D$ band but does not affect $2D$ band, which is already observed by recent experiments. The space derivative of the valley antisymmetric potential gives a force field that accelerates intervalley phonons, while it corresponds to the longitudinal component of the previously discussed pseudoelectric field acting on the electrons. Effects of a pseudoelectric field on the electron is quite difficult to observe due to the valley-antisymmetric coupling constant, on the other hand, such obstacle is absent for intervalley phonons with $A_{1g}$ symmetry that constitute the $D$ and $2D$ bands.
description: 11 pages, 3 figures
Progression of Late-Onset Stargardt Disease
Creators: name: Lambertus, Stanley
name: Lindner, Moritz
name: Bax, Nathalie M.
name: Mauschitz, Matthias M.
name: Nadal, Jennifer
name: Schmid, Matthias
name: Schmitz-Valckenberg, Steffen
name: den Hollander, Anneke I.
name: Weber, Bernhard H. F.
name: Holz, Frank G.
name: van der Wilt, Gert Jan
name: Fleckenstein, Monika
name: Hoyng, Carel B.
Publisher: name: Universität Regensburg
Year: 2016
Subjects: subject: VISUAL-ACUITY LOSS; MACULAR DEGENERATION; GEOGRAPHIC ATROPHY; FUNDUS AUTOFLUORESCENCE; FLAVIMACULATUS; QUANTIFICATION; PHENOTYPE; GENE; late-onset Stargardt; fundus autofluorescence; retinal pigment epithelium atrophy; biomarker; disease progression
subject: 610 Medizin

description: PURPOSE. Identification of sensitive biomarkers is essential to determine potential effects of emerging therapeutic trials for Stargardt disease. This study aimed to describe the natural history of late-onset Stargardt, and demonstrates the accuracy of retinal pigment epithelium (RPE) atrophy progression as an outcome measure. METHODS. We performed a retrospective cohort study collecting multicenter data from 47 patients (91 eyes) with late-onset Stargardt, defined by clinical phenotype, at least one ABCA4 mutation, and age at disease onset >= 45 years. We analyzed RPE atrophy progression on fundus autofluorescence and near-infrared reflectance imaging using semiautomated software and a linear mixed model. We performed sample size calculations to assess the power in a simulated 2-year interventional study and assessed visual endpoints using time-to-event analysis. RESULTS. Over time, progression of RPE atrophy was observed (mean: 0.22 mm/year, 95% confidence interval [CI]: 0.19-0.27). By including only patients with bilateral RPE atrophy in a future trial, 32 patients are needed to reach a power of 83.9% (95% CI: 83.1-84.6), assuming a fixed therapeutic effect size of 30%. We found a median interval between disease onset and visual acuity decline to 20/32, 20/80, and 20/200 of 2.74 (95% CI: 0.54-4.41), 10.15 (95% CI: 6.13-11.38), and 11.38 (95% CI: 6.13-13.34) years, respectively. CONCLUSIONS. We show that RPE atrophy represents a robust biomarker to monitor disease progression in future therapeutic trials. In contrast, the variability in terms of the course of visual acuity was high.
Avancées récentes des câbles isolés pour la transition énergétique
Projets dans les domaines de liaisons sous- marines et terrestres supraconductrices
Creators: name: Toulotte, Maxime
name: Lesur, Frédéric
Publisher: name: SEE
Year: 2021

description: La nouvelle stratégie de l’UE pour soutenir la transition énergétique se traduit par des objectifs ambitieux de 300 GW d’éolien en mer installés d’ici 2050, qui incluent l’éolien flottant. Des adaptations seront nécessaires pour intégrer ces énergies aux réseaux afin de garantir la sécurité d’approvisionnement. Les interconnexions électriques par câbles sous-marins y joueront un rôle essentiel, tout comme la supraconductivité, désormais intégrée aux scénarios d’intégration des énergies renouvelables à l’échelle continentale.
Pediatric acquired brain injury resources for educators: a multi-year scan of Canadian-relevant internet resources
Creators: name: Saly, Lauren
name: Marshall, Sara A.
name: Mallory, Kylie D.
name: Hunt, Anne W.
name: Kakonge, Lisa
name: Provvidenza, Christine
name: Hickling, Andrea
name: Stevens, Sara A.
name: Bennett, Sheila
name: Scratch, Shannon E.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: Acquired Brain Injury (ABI) is the leading cause of death and disability in children, yet educators report a lack of knowledge about ABI and supporting students with ABI. With no formal learning about ABI, education professionals may turn to the internet for information. To find online resources about supporting students with ABI, in any format, available freely and publicly, aimed toward elementary educators and that could be applied in a Canadian context. We performed an environmental scan using keyword Google searches, key websites, and expert recommendations. The search was performed twice: 2018 and 2021. 96 resources were included after screening. The resources were published by organizations in the United States (n = 57), Canada (n = 19), United Kingdom (n = 16), Australia (n = 3) and New Zealand (n = 1). Traumatic brain injury and concussion were the most commonly addressed type of ABI, and Short Fact/Information sheets were the most common resource format. Between 2018 and 2021, 13 previously included resource links were no longer accessible. This scan suggests that there are many online resources available to educators in a variety of formats, and that information online can be transient. Future studies should evaluate the accuracy and quality of the resources available.
Biométrie et Sécurité
Nouvelles technologies d’identification de masse. Perspectives et problèmes
Creators: name: Leconte, Marc
Publisher: name: SEE
Year: 2021

description: Les technologies biométriques qui se diversifient sans cesse envahissent peu à peu notre vie quotidienne. Cela pose des problèmes à la fois des problèmes techniques en termes de fiabilité d’identification mais aussi éthiques du fait des menaces que ces technologies peuvent faire peser sur les libertés publiques de l’individu si elles sont mal contrôlées.
Dipolar correlations in structured solvents under nanoconfinement
Creators: name: Buyukdagli, Sahin
name: Blossey, Ralf
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study electrostatic correlations in structured solvents confined to nanoscale systems. We derive variational equations of Netz-Orland type for a model liquid composed of finite size dipoles. These equations are solved for both dilute solvents and solvents at physiological concentrations in a slit nanopore geometry. Correlation effects are of major importance for the dielectric reduction and anisotropy of the solvent resulting from dipole image interactions and also lead to a reduction of van der Waals attractions between low dielectric bodies. Finally, by comparison with other recently developed self-consistent theories and experiments, we scrutinize the effect of solvent-membrane interactions on the differential capacitance of the charged liquid in contact with low dielectric substrates. The interfacial solvent depletion driven by solvent-image interactions plays the major role in the observed low values of the experimental capacitance data, while non-locality associated with the extended charge structure of solvent molecules only brings a minor contribution.
description: This version is accepted for publication in the Journal of Chemical Physics
Making speech technology accessible for pathological speakers
Creators: name: Halpern, Bence
Publisher: name: Zenodo
Year: 2022
Subjects: automatic speech recognition
speech evaluation
voice conversion

description: Speech technology has become widespread in the past decades: voice assistants, voice biometrics, automated call centres, autotune, and vocaloid idols are part of our everyday lives. These technologies are beneficial and convenient for the general population, but for certain parts of the population, e.g., atypical and pathological speakers, these technologies do not work well. It is especially problematic that pathological speakers are less able to use these technologies as they are often physically disabled, meaning they would have a strong need for voice assistants. Apart from voice assistants, there are several other kinds of speech technologies where the main user would be a pathological speaker. However, these speech technologies currently do not work well for these pathological speakers. In other words, speech technology lacks accessibility to pathological speakers. This thesis presents a series of studies on making speech technology accessible to pathological speakers.
La biométrie d’aujourd’hui
du rêve à la réalité
Creators: name: Dorizzi, Bernadette
Publisher: name: SEE
Year: 2021

description: La biométrie s’immisce dans notre quotidien suscitant intérêt pour notre sécurité et crainte pour nos libertés. Cet article propose un panorama des principales techniques ainsi que des enjeux actuels.
Precise cooperative sulfur placement leads to semi-crystallinity and selective depolymerisability in CS2/oxetane copolymers
Creators: name: Fornacon-Wood, Christoph
name: Manjunatha, Bhargav R.
name: Stühler, Merlin R.
name: Gallizioli, Cesare
name: Müller, Carsten
name: Pröhm, Patrick
name: Plajer, Alex J.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Chemical bonding
subject: Homogeneous catalysis
subject: Polymer synthesis
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: CS2 promises easy access to degradable sulfur-rich polymers and insights into how main-group derivatisation affects polymer formation and properties, though its ring-opening copolymerisation is plagued by low linkage selectivity and small-molecule by-products. We demonstrate that a cooperative Cr(III)/K catalyst selectively delivers poly(dithiocarbonates) from CS2 and oxetanes while state-of-the-art strategies produce linkage scrambled polymers and heterocyclic by-products. The formal introduction of sulfur centres into the parent polycarbonates results in a net shift of the polymerisation equilibrium towards, and therefore facilitating, depolymerisation. During copolymerisation however, the catalyst enables near quantitative generation of the metastable polymers in high sequence selectivity by limiting the lifetime of alkoxide intermediates. Furthermore, linkage selectivity is key to obtain semi-crystalline materials that can be moulded into self-standing objects as well as to enable chemoselective depolymerisation into cyclic dithiocarbonates which can themselves serve as monomers in ring-opening polymerisation. Our report demonstrates the potential of cooperative catalysis to produce previously inaccessible main-group rich materials with beneficial chemical and physical properties.
Global Time Distribution via Satellite-Based Sources of Entangled Photons
Creators: name: Haldar, Stav
name: Agullo, Ivan
name: Brady, Anthony J.
name: Lamas-Linares, Antía
name: Proctor, W. Cyrus
name: Troupe, James E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a satellite-based scheme to perform clock synchronization between ground stations spread across the globe using quantum resources. We refer to this as a quantum clock synchronization (QCS) network. Through detailed numerical simulations, we assess the feasibility and capabilities of a near-term implementation of this scheme. We consider a small constellation of nanosatellites equipped only with modest resources. These include quantum devices such as spontaneous parametric down conversion (SPDC) sources, avalanche photo-detectors (APDs), and moderately stable on-board clocks such as chip scale atomic clocks (CSACs). In our simulations, the various performance parameters describing the hardware have been chosen such that they are either already commercially available, or require only moderate advances. We conclude that with such a scheme establishing a global network of ground based clocks synchronized to sub-nanosecond level (up to a few picoseconds) of precision, would be feasible. Such QCS satellite constellations would form the infrastructure for a future quantum network, able to serve as a globally accessible entanglement resource. At the same time, our clock synchronization protocol, provides the sub-nanosecond level synchronization required for many quantum networking protocols, and thus, can be seen as adding an extra layer of utility to quantum technologies in the space domain designed for other purposes.
description: 20 pages, 12 figures and 6 tables. Comments are welcome
Neuroprotective effects of Chrysanthemum morifolium on cerebral ischemia- reperfusion injury contributes to the oxidative stress suppression and related Keap1/Nrf2 pathway
Creators: name: Zhang, Zibin
name: Pang, Xiaojun
name: Wei, Yuyu
name: Chen, Huai
name: Jin, Xuhong
name: Lv, Qingping
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Ischemic stroke, the cause of death and disability worldwide, is closely related to oxidative stress damage. Chrysanthemum has profound antiantioxidant activity. We aimed to verify whether Chrysanthemum morifolium extract (CME) influences brain injury in cerebral ischemia-reperfusion injury (CR/RI) model. In vitro, rat hippocampal H19-7 neurons were pretreated with CME, CR/RI was simulated with oxygen glucose deprivation/reoxygenation (OGD/R). The cell viability, apoptosis, lactate dehydrogenase release, reactive oxygen species (ROS) generation, malonaldehyde (MDA) content and superoxide dismutase（SOD） activity were detected. In vivo, middle cerebral artery occlusion (MCAO) model rats were pre-administered with CME, and then behavioral test, triphenyltetrazolium chloride (TTC), hematoxylin-eosin staining (HE), terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling (TUNEL), ROS immunofluorescence, MDA and SOD activity were tested. Furthermore, Keap1/Nrf2 signaling of CME in CI/RI was investigated. In OGD/R induced in H19-7 cells, CME increased OGD/R-induced cell viability and reduced cell apoptosis, which was reversed by siNrf2 transfection . In MCAO rats, CME improved the neurological deficits and alleviated brain injury. However, co-treatment with MLK385 counteracted these neuroprotective effects of CME on MCAO rats. CME could significantly reduce oxidative stress and nerve injury in vitro and in vivo models of CI/RI by regulating the Keap1/Nrf2 pathway.
Détection sécurisée d’empreinte digitale par imagerie 3D
Creators: name: Dorizzi, Bernadette
name: Yaneck Gottesman
name: Lamare, François
Publisher: name: SEE
Year: 2021

description: Nous proposons un nouveau capteur optique biométrique 3D hautement sécurisé basé sur la Tomographie par cohérence optique (ou OCT), permettant de mesurer finement les caractéristiques propres au doigt analysé.
МОТИВАЦІЯ ЛІКАРІВ ДО БЕЗПЕРЕРВНОГО ПРОФЕСІЙНОГО РОЗВИТКУ: ВІД ЧИННИКІВ ДО КОНЦЕПТУАЛІЗАЦІЇ
Creators: name: Voronenko, Yuriy
name: Hulchiy, Olesya
name: Zakharova, Nadiia
name: Balashov, Kostyantyn
Publisher: name: figshare
Year: 2020
Subjects: subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences

description: Сучасний стан системи безперервного професійного розвитку лікарів робить вкрай актуальним використання інструментарію маркетингу та комунікацій.
Метою праці є опис самооцінки лікарями ключових чинників, що впливають на вибір форми БПР, та їх класифікація.
Матеріали і методи. 354 лікарям було запропоновано оцінити додаткові чинники, які впливають на вибір курсу БПР. Отримані відповіді були каталогізовані двома експертами та узгоджені між собою.
Обговорення результатів. Встановлений 41 чинник впливу на вибір форми БПР за п'ятьма основними напрямами.
Висновки. Врахування визначених 5-ти груп чинників під час планування є доцільним під час планування навчальних курсів.
Les attaques par présentation des systèmes biométriques
Quand la réalité rejoint James Bond
Creators: name: Falade, Joannes
name: Charrier, Christophe
name: Rosenberger, Christophe
Publisher: name: SEE
Year: 2021

description: Un système biométrique vise en général à sécuriser l’accès à une ressource logique ou physique. Attaquer un système biométrique est malgré tout possible de différentes façons. L’attaque par présentation est spécifique à la biométrie, elle a été rendue populaire dans un film de James Bond en 1971.
Entropy and Seebeck signals meet on the edges
Creators: name: Cortés, Natalia
name: Vargas, Patricio
name: Ulloa, S. E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We explore the electronic entropy per particle $s$ and Seebeck coefficient $\mathcal{S}$ in zigzag graphene ribbons. Pristine and edge-doped ribbons are considered using tight-binding models to inspect the role of edge states in the observed thermal transport properties. As a bandgap opens when the ribbons are doped at one or both edges, due to asymmetric edge potentials, we find that $s$ and $\mathcal{S}$ signals are closely related to each other: both develop sharp dip-peak lineshapes as the chemical potential lies in the gap, while the ratio $s/\mathcal{S}$ exhibits a near constant value equal to the elementary charge $e$ at low temperatures. This constant ratio suggests that $\mathcal{S}$ can be seen as the transport differential entropy per charge, as suggested by some authors. Our calculations also indicate that measurement of $s$ and $\mathcal{S}$ may be useful as a spectroscopic probe of different electronic energy scales involved in such quantities in gapped materials.
description: 6 pages, 6 figures
Deflection in higher dimensional spacetime and asymptotically non-flat spacetimes
Creators: name: He, Jinhong
name: Wang, Qianchuan
name: Hu, Qiyue
name: Feng, Li
name: Jia, Junji
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using a perturbative technique, in this work we study the deflection of null and timelike signals in the extended Einstein-Maxwell spacetime, the Born-Infeld gravity and the charged Ellis-Bronnikov (CEB) spacetime in the weak field limit. The deflection angles are found to take a (quasi-)series form of the impact parameter, and automatically takes into account the finite distance effect of the source and observer. The method is also applied to find the deflections in CEB spacetime with arbitrary dimension. It's shown that to the leading non-trivial order, the deflection in some $n$-dimensional spacetimes is of the order $\mathcal{O}(M/b)^{n-3}$. We then extended the method to spacetimes that are asymptotically non-flat and studied the deflection in a nonlinear electrodynamical scalar theory. The deflection angle in such asymptotically non-flat spacetimes at the trivial order is found to be not $π$ anymore. In all these cases, the perturbative deflection angles are shown to agree with numerical results extremely well. The effects of some nontrivial spacetime parameters as well as the signal velocity on the deflection angles are analyzed.
description: 30 pages, 7 figures; title modified; to match published version in Class.Quant.Grav
La biométrie comportementale
Quand nos actes permettent de nous identifier
Creators: name: Charrier, Christophe
name: Rosenberger, Christophe
Publisher: name: SEE
Year: 2021

description: Le terme biométrie fait en général référence dans l’imaginaire collectif à l’exploitation d’empreintes digitales ou de l’ADN pour identifier des criminels. Savez-vous que dans votre quotidien, plusieurs services numériques analysent votre comportement pour vous protéger mais aussi pour vous cibler ?
Fitting a Self-Interacting Dark Matter Model to Data Ranging From Satellite Galaxies to Galaxy Clusters
Creators: name: Girmohanta, Sudhakantha
name: Shrock, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a fit to observational data in an asymmetric self-interacting dark matter model using our recently calculated cross sections that incorporate both $t$-channel and $u$-channel exchanges in the scattering of identical particles. We find good fits to the data ranging from dwarf galaxies to galaxy clusters, and equivalent relative velocities from $\sim 20$ km/sec to $\gtrsim 10^3$ km/s. We compare our results with previous fits that used only $t$-channel exchange contributions to the scattering.
description: 9 pages, 8 figures, matches the publication in Phys. Rev. D
Plots of all pN/pS trajectories calculated
Creators: name: Chiner-Oms, Alvaro
name: López, Mariana G.
name: Moreno-Molina, Miguel
name: Furió, Victoria
name: Comas, Iñaki
Publisher: name: figshare
Year: 2022
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60408 Genomics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Plots of all pN, pS and pN/pS trajectories calculated for the complete MTBC genome, for the antigen-epitope pairs (MTBC wide) and also for the antigen-epitope pairs but splitted by the main MTBC phylogenetic lineages (L1, L2, L3, L4, L5, L6, L7 and the animal-adapted strains).
This dataset correspond to Dataset S7 in the publication Gene Evolutionary Trajectories in M. tuberculosis Reveal Temporal Signs of Selection, accepted in PNAS in february 2022.
Superdiffusive Energy Transport in Kinetically Constrained Models
Creators: name: Ljubotina, Marko
name: Desaules, Jean-Yves
name: Serbyn, Maksym
name: Papić, Zlatko
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Universal nonequilibrium properties of isolated quantum systems are typically probed by studying transport of conserved quantities, such as charge or spin, while transport of energy has received considerably less attention. Here, we study infinite-temperature energy transport in the kinetically-constrained PXP model describing Rydberg atom quantum simulators. Our state-of-the-art numerical simulations, including exact diagonalization and time-evolving block decimation methods, reveal the existence of two distinct transport regimes. At moderate times, the energy-energy correlation function displays periodic oscillations due to families of eigenstates forming different su(2) representations hidden within the spectrum. These families of eigenstates generalize the quantum many-body scarred states found in previous works and leave an imprint on the infinite-temperature energy transport. At later times, we observe a broad superdiffusive transport regime that we attribute to the proximity of a nearby integrable point. Intriguingly, strong deformations of the PXP model by the chemical potential do not restore diffusion, but instead lead to a stable superdiffusive exponent $z\approx3/2$. Our results suggest constrained models to be potential hosts of novel transport regimes and call for developing an analytic understanding of their energy transport.
description: 14 pages, 12 figures
Ampère, le « Newton de l’électrodynamique »
Creators: name: Fischer, Hélène
Publisher: name: SEE
Year: 2021

description: Dès 1802, Ampère a l’intuition fulgurante que magnétisme et courant électrique sont deux facettes différentes du même phénomène. En 1820, sa vie est bouleversée par les résultats d’Œrsted. Ampère est alors sujet à une véritable frénésie créatrice qui n’a de cesse d’expliquer ces résultats et de prouver la véracité de son rêve de jeunesse de refonder la physique.