cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Faciliter le contrôle de l'inhibition par le biais des syllogismes
title: une étude d'intervention en 8H
titleType: Subtitle
title: Faciliter le contrôle de l'inhibition par le biais des syllogismes
titleType: AlternativeTitle
Creators: name: Martin, Gaëlle
name: Misini, Vlora
Publisher: name: Unknown
Year: 0
Subjects: subject: Autorégulation
subject: Fonctions Exécutives
subject: Contrôle de l’inhibition
subject: Stroop
subject: TSQ-2
subject: Syllogismes

description: Au long de sa scolarité, il est indispensable que l'enfant soit capable de réguler son comportement et sa cognition afin de pouvoir, à la fois, s’adapter à son milieu et atteindre un but, plus simplement, apprendre. L’autorégulation représente, par conséquent, une dimension importante afin que ce dernier puisse y parvenir et est définie comme la manifestation de comportements visibles de certains processus mentaux. Ces mécanismes sont plus communément appelés fonctions exécutives (FE) et peuvent être définis comme « l’ensemble des processus permettant à un individu de réguler de façon intentionnelle sa pensée et ses actions afin d’atteindre des buts » (Miyake et al., 2000, cité par Chevalier, 2010, p.149). Parmi les FE, nous recensons, notamment le contrôle de l’inhibition, la mémoire de travail ainsi que la flexibilité mentale. Nous nous sommes particulièrement intéressées à la première – qui permet d’inhiber une réponse au bénéfice d’une autre réponse plus appropriée – car, selon une étude de Blair et Razza (2007), il s’agit d’un meilleur prédicteur de réussite scolaire que le QI. Dans notre recherche, nous avons donc exploré l’effet que pourraient avoir des interventions au sein desquelles des élèves de 8ème année HarmoS devaient résoudre des syllogismes. Pour ce faire, il leur a été nécessaire d’inhiber un processus de raisonnement perceptif et instinctif au profit d’un raisonnement logique. À travers ces interventions, nous souhaitions vérifier si une amélioration du contrôle de l’inhibition d’un groupe d’élèves défini (expérimental) pouvait s’opérer par rapport à un autre groupe d’élèves n’y ayant pas participé (contrôle). Afin d’évaluer la progression du contrôle de l’inhibition des participants, nous avons utilisé le test de Stroop avant et après les interventions. Les résultats n’ont pas démontré de progrès significatifs du groupe expérimental par rapport au groupe contrôle. Cependant, certains résultats ont attesté d’un lien entre l’amélioration des performances des élèves au post-test Stroop 2 et la résolution de syllogismes. Ces résultats ouvrent une perspective sur l’effet que pourraient avoir ces interventions si elles étaient menées sur une période plus étendue et d’intensité plus importante que lors de cette recherche.
Beta/gamma and alpha backgrounds in CRESST-II Phase 2
Creators: name: Strauss, R.
name: Angloher, G.
name: Bento, A.
name: Bucci, C.
name: Canonica, L.
name: Erb, A.
name: Feilitzsch, F. v.
name: Iachellini, N. Ferreiro
name: Gorla, P.
name: Gütlein, A.
name: Hauff, D.
name: Jochum, J.
name: Kiefer, M.
name: Kluck, H.
name: Kraus, H.
name: Lanfranchi, J. -C.
name: Loebell, J.
name: Münster, A.
name: Petricca, F.
name: Potzel, W.
name: Pröbst, F.
name: Reindl, F.
name: Roth, S.
name: Rottler, K.
name: Sailer, C.
name: Schäffner, K.
name: Schieck, J.
name: Scholl, S.
name: Schönert, S.
name: Seidel, W.
name: Sivers, M. v.
name: Stodolsky, L.
name: Strandhagen, C.
name: Tanzke, A.
name: Uffinger, M.
name: Ulrich, A.
name: Usherov, I.
name: Wawoczny, S.
name: Willers, M.
name: Wüstrich, M.
name: Zöller, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The experiment CRESST-II aims at the detection of dark matter with scintillating CaWO$_4$ crystals operated as cryogenic detectors. Recent results on spin-independent WIMP-nucleon scattering from the CRESST-II Phase 2 allowed to probe a new region of parameter space for WIMP masses below 3 GeV/c$^2$. This sensitivity was achieved after background levels were reduced significantly. We present extensive background studies of a CaWO$_4$ crystal, called TUM40, grown at the Technische Universität München. The average beta/gamma rate of 3.51/[kg keV day] (1-40 keV) and the total intrinsic alpha activity from natural decay chains of $3.08\pm0.04$ mBq/kg are the lowest reported for CaWO$_4$ detectors. Contributions from cosmogenic activation, surface-alpha decays, external radiation and intrinsic alpha/beta emitters are investigated in detail. A Monte-Carlo based background decomposition allows to identify the origin of the majority of beta/gamma events in the energy region relevant for dark matter search.
description: 17 pages, 7 figures, 3 tables
Device Heterogeneity in Federated Learning: A Superquantile Approach
Creators: name: Laguel, Yassine
name: Pillutla, Krishna
name: Malick, Jérôme
name: Harchaoui, Zaid
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose a federated learning framework to handle heterogeneous client devices which do not conform to the population data distribution. The approach hinges upon a parameterized superquantile-based objective, where the parameter ranges over levels of conformity. We present an optimization algorithm and establish its convergence to a stationary point. We show how to practically implement it using secure aggregation by interleaving iterations of the usual federated averaging method with device filtering. We conclude with numerical experiments on neural networks as well as linear models on tasks from computer vision and natural language processing.
Experimentelle Untersuchung der Zwei-Photon-Erzeugungder Mesonresonanzen $\alpha 2(1320)$ und $\pi 2(1670)$mit dem Detektor CELLO
Creators: name: Köhne, Jobst Heinrich
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1989
Subjects: thesis
electron positron: colliding beams
electron positron: inelastic scattering
exchange: two-photon
photon photon: interaction
a2(1320): electroproduction
pi2(1680): electroproduction
helicity: amplitude analysis
pi2(1680): mass
pi2(1680): width
pi2(1680): hadronic decay
angular correlation
CELLO
experimental results
DESY PETRA Stor
electron positron --> pi+ pi- pi0 positron electron
pi2(1680) --> f2(1270) pi0
35 GeV-cms

description: Universität Hamburg, Diplomarbeit, 1989; 92 pp. (1989). = Universität Hamburg, Diplomarbeit, 1989
Contact Isotropic Realisations of Jacobi Manifolds via Spencer Operators
Creators: name: Salazar, Maria Amelia
name: Sepe, Daniele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Symplectic Geometry (math.SG)
subject: Differential Geometry (math.DG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Motivated by the importance of symplectic isotropic realisations in the study of Poisson manifolds, this paper investigates the local and global theory of contact isotropic realisations of Jacobi manifolds, which are those of minimal dimension. These arise naturally when considering multiplicity-free actions in contact geometry, as shown in this paper. The main results concern a classification of these realisations up to a suitable notion of isomorphism, as well as establishing a relation between the existence of symplectic and contact isotropic realisations for Poisson manifolds. The main tool is the classical Spencer operator which is related to Jacobi structures via their associated Lie algebroid, which allows to generalise previous results as well as providing more conceptual proofs for existing ones.
Optimizing PhiNet architectures for the detection of urban sounds on low-end devices
Creators: name: Brutti, Alessio
name: Paissan, Francesco
name: Ancilotto, Alberto
name: Farella, Elisabetta
Publisher: name: Zenodo
Year: 2022
Subjects: sound event detection
neural networks
PhiNets
tinyML

description: Sound Event Detection (SED) pipelines identify and classify relevant events in audio streams. With typical applications in the smart city domain (e.g., crowd counting, alarm triggering), SED is an asset for municipalities and law enforcement agencies. Given the large size of the areas to be monitored and the amount of data generated by the IoT sensors, large models running on centralised servers are not suitable for real-time applications. Conversely, performing SED directly on pervasive embedded devices is very attractive in terms of energy consumption, bandwidth requirements and privacy preservation. In a previous manuscript, we proposed scalable backbones from the PhiNets architectures’ family for real-time sound event detection on microcontrollers. In this paper, we extend our analysis investigating how PhiNets’ scaling parameters affect the model performance in the SED task while searching for the best configuration given the computational constraints. Experimental analysis on UrbanSound8K shows that while only the total number of parameters matters when training the model from scratch (i.e., it is independent of the scaling parameter configuration), knowledge distillation is more effective with specific scaling configurations.
1-loop Color structures and sunny diagrams
Creators: name: Kol, Barak
name: Shir, Ruth
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently the space of tree level color structures for gluon scattering was determined in arXiv:1403.6837 together with its transformation properties under permutations. Here we generalize the discussion to loops, demonstrating a reduction of an arbitrary color diagram to its vacuum skeleton plus rays. For 1-loop there are no residual relations and we determine the space of color structures both diagrammatically and algebraically in terms of certain sunny diagrams. We present the generating function for the characteristic polynomials and a list of irreducible representations for $3 \le n \le 9$ external legs. Finally we present a new proof for the 1-loop shuffle relations based on the cyclic shuffle and split operations.
description: 12 pages, v2: typo corrected in Table 1
Symplectic birational transformations of finite order on O'Grady's sixfolds
Creators: name: Grossi, Annalisa
name: Onorati, Claudio
name: Veniani, Davide Cesare
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J42 (14J50 14E07)

description: We prove that any symplectic automorphism of finite order on a manifold of type OG6 acts trivially on the Beauville--Bogomolov--Fujiki lattice and that any birational transformation of finite order acts trivially on its discriminant group. Moreover, we classify all possible invariant and coinvariant sublattices.
description: Final version, to appear on Kyoto J. Math
Avoiding leakage and errors caused by unwanted transitions in Lambda systems
Creators: name: Vezvaee, Arian
name: Takou, Evangelia
name: Hilaire, Paul
name: Doty, Matthew F.
name: Economou, Sophia E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Three-level Lambda systems appear in various quantum information processing platforms. In several control schemes, the excited level serves as an auxiliary state for implementing gate operations between the lower qubit states. However, extra excited levels give rise to unwanted transitions that cause leakage and other errors, degrading the gate fidelity. We focus on a coherent-population-trapping scheme for gates and design protocols that reduce the effects of the unwanted off-resonant couplings and improve the gate performance up to several orders of magnitude. For a particular setup of unwanted couplings, we find an exact solution, which leads to error-free gate operations via only a static detuning modification. In the general case, we improve gate operations by adding corrective modulations to the pulses, thereby generalizing the DRAG protocol to Lambda systems. Our techniques enable fast and high-fidelity gates and apply to a wide range of optically driven platforms, such as quantum dots, color centers, and trapped ions.
A Finiteness Theorem for Special Unitary Groups of Quaternionic Skew-Hermitian Forms with Good Reduction
Creators: name: Srinivasan, Srimathy
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: Given a field $K$ equipped with a set of discrete valuations $V$, we develop a general theory to relate reduction properties of skew-hermitian forms over a quaternion $K$-algebra $Q$ to quadratic forms over the function field $K(Q)$ obtained via Morita equivalence. Using this we show that if $(K,V)$ satisfies certain conditions, then the number of $K$-isomorphism classes of the universal coverings of the special unitary groups of quaternionic skew-hermitian forms that have good reduction at all valuations in $V$ is finite and bounded by a value that depends on size of a quotient of the Picard group of $V$ and the size of the kernel and cokernel of residue maps in Galois cohomology of $K$ with finite coefficients. As a corollary we prove a conjecture of Chernousov, Rapinchuk, Rapinchuk for groups of this type.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 1171-1194
Helix (Cochlogena) maximiliana var. minor S. Moricand 1836
Creators: name: Breure, Abraham S. H.
name: Tardy, Emmanuel
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Helicidae
Helix
Helix maximiliana
Minor, helix (cochlogena) maximiliana [var. γ], s. moricand, 1836

description: minor, Helix (Cochlogena) maximiliana [var. γ], S. Moricand, 1836 b: 431.
Type locality: [Brazil, Bahia] Illheos [Blanchet]. Syntypes: MHNG-INVE-60152 (11) (Bulimulidae) [B: fig. 90].
– Remarks. Additional material as syntypes NMB 8510a (3).
description: Published as part of Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, pp. 113-138 in Revue suisse de Zoologie 123 (1) on page 122, DOI: 10.5281/zenodo.46292
Uniform Powers of Compacta and the Proximal Game
Creators: name: Hernández-Gutiérrez, Rodrigo
name: Szeptycki, Paul J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54B10, 54C45, 54D30, 54D60, 54E15

description: The countable uniform power (or uniform box product) of a uniform space $X$ is a special topology on ${}^ωX$ that lies between the Tychonoff topology and the box topology. We solve an open problem posed by P. Nyikos showing that if $X$ is a compact proximal space then the countable uniform power of $X$ is also proximal (although it is not compact). By recent results of J. R. Bell and G. Gruenhage this implies that the countable uniform power of a Corson compactum is collectionwise normal, countably paracompact and Fréchet-Urysohn. We also give some results about first countability, realcompactness in countable uniform powers of compact spaces and explore questions by P. Nyikos about semi-proximal spaces.
Energie und Ortauflösung eines BGO-Schauerzählers im Energiebereich von 1 bis 6 GeV
Creators: name: Westermann, Heiner
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1992
Subjects: thesis
calorimeter
scintillation counter: crystal
scintillation counter: bismuth-germanate
shower detector
energy resolution
spatial resolution
calibration
muon: cosmic radiation
electron: beam
beam: electron
CELLO
DESY PETRA Stor
1-6 GeV (electron)

description: Universität Hamburg, Diplomarbeit, 1992; 96 pp. (1992). = Universität Hamburg, Diplomarbeit, 1992
Helix (Cochlodina) pantagruelina var. minor S. Moricand 1833
Creators: name: Breure, Abraham S. H.
name: Tardy, Emmanuel
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Helicidae
Helix
Helix pantagruelina
Minor, helix (cochlodina) pantagruelina [var. γ], s. moricand, 1836

description: minor, Helix (Cochlodina) pantagruelina [var. γ], S. Moricand, 1836 b: 441.
No type locality [Blanchet]. Syntypes: MHNG-INVE-64698 (3) (Odontostomidae) [B: fig. 124].
description: Published as part of Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, pp. 113-138 in Revue suisse de Zoologie 123 (1) on page 122, DOI: 10.5281/zenodo.46292
title: Modelowanie i symulacja pracy generatora wiatrowego z magazynem energii w środowisku MATLAB & SIMULINK
Creators: name: Jarmuda, Tomasz
name: Yurasyk, Mykhailo
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Poznan University of Technology Academic Journals. Electrical Engineering, 107, 55-68
KAT2-mediated acetylation switches the mode of PALB2 chromatin association to safeguard genome integrity
Creators: name: Fournier, Marjorie
name: Rodrigue, Amélie
name: Milano, Larissa
name: Bleuyard, Jean-Yves
name: Couturier, Anthony M
name: Wall, Jacob
name: Ellins, Jessica
name: Hester, Svenja
name: Smerdon, Stephen J
name: Tora, László
name: Masson, Jean-Yves
name: Esashi, Fumiko
Publisher: name: The Francis Crick Institute
Year: 2022
Subjects: Genome Integrity & Repair
Structural Biology & Biophysics
Signalling & Oncogenes
Cell Cycle & Chromosomes

description: The tumour suppressor PALB2 stimulates RAD51-mediated homologous recombination (HR) repair of DNA damage, whilst its steady-state association with active genes protects these loci from replication stress. Here, we report that the lysine acetyltransferases 2A and 2B (KAT2A/2B, also called GCN5/PCAF), two well-known transcriptional regulators, acetylate a cluster of seven lysine residues (7K-patch) within the PALB2 chromatin association motif (ChAM) and, in this way, regulate context-dependent PALB2 binding to chromatin. In unperturbed cells, the 7K-patch is targeted for KAT2A/2B-mediated acetylation, which in turn enhances the direct association of PALB2 with nucleosomes. Importantly, DNA damage triggers a rapid deacetylation of ChAM and increases the overall mobility of PALB2. Distinct missense mutations of the 7K-patch render the mode of PALB2 chromatin binding, making it either unstably chromatin-bound (7Q) or randomly bound with a reduced capacity for mobilisation (7R). Significantly, both of these mutations confer a deficiency in RAD51 foci formation and increase DNA damage in S phase, leading to the reduction of overall cell survival. Thus, our study reveals that acetylation of the ChAM 7K-patch acts as a molecular switch to enable dynamic PALB2 shuttling for HR repair while protecting active genes during DNA replication.
Reliability analysis of general phased mission systems with a new survival signature
Creators: name: Huang, Xianzhen
name: Aslett, Louis J. M.
name: Coolen, Frank P. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: It is often difficult for a phased mission system (PMS) to be highly reliable, because this entails achieving high reliability in every phase of operation. Consequently, reliability analysis of such systems is of critical importance. However, efficient and interpretable analysis of PMSs enabling general component lifetime distributions, arbitrary structures, and the possibility that components skip phases has been an open problem. In this paper, we show that the survival signature can be used for reliability analysis of PMSs with similar types of component in each phase, providing an alternative to the existing limited approaches in the literature. We then develop new methodology addressing the full range of challenges above. The new method retains the attractive survival signature property of separating the system structure from the component lifetime distributions, simplifying computation, insight into, and inference for system reliability.
description: 21 pages
A detector module with highly efficient surface-alpha event rejection operated in CRESST-II Phase 2
Creators: name: Strauss, R.
name: Angloher, G.
name: Bento, A.
name: Bucci, C.
name: Canonica, L.
name: Erb, A.
name: Feilitzsch, F. v.
name: Ferreiro, N.
name: Gorla, P.
name: Gütlein, A.
name: Hauff, D.
name: Jochum, J.
name: Kiefer, M.
name: Kluck, H.
name: Kraus, H.
name: Lanfranchi, J. -C.
name: Loebell, J.
name: Münster, A.
name: Petricca, F.
name: Potzel, W.
name: Pröbst, F.
name: Reindl, F.
name: Roth, S.
name: Rottler, K.
name: Sailer, C.
name: Schäffner, K.
name: Schieck, J.
name: Scholl, S.
name: Schönert, S.
name: Seidel, W.
name: Sivers, M. v.
name: Stanger, M.
name: Stodolsky, L.
name: Strandhagen, C.
name: Tanzke, A.
name: Uffinger, M.
name: Ulrich, A.
name: Usherov, I.
name: Wawoczny, S.
name: Willers, M.
name: Wüstrich, M.
name: Zöller, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The cryogenic dark matter experiment CRESST-II aims at the direct detection of WIMPs via elastic scattering off nuclei in scintillating CaWO$_4$ crystals. We present a new, highly improved, detector design installed in the current run of CRESST-II Phase 2 with an efficient active rejection of surface-alpha backgrounds. Using CaWO$_4$ sticks instead of metal clamps to hold the target crystal, a detector housing with fully-scintillating inner surface could be realized. The presented detector (TUM40) provides an excellent threshold of ${\sim}\,0.60\,$keV and a resolution of $σ\,{\approx}\,0.090$ keV (at 2.60$\,$keV). With significantly reduced background levels, TUM40 sets stringent limits on the spin-independent WIMP-nucleon scattering cross section and probes a new region of parameter space for WIMP masses below 3$\,$GeV/c$^2$. In this paper, we discuss the novel detector design and the surface-alpha event rejection in detail.
description: 9 pages, 6 figures
Direct $CP$ violation in charmless three-body decays of $B^{\pm}$ mesons
Creators: name: LHCb Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Measurements of $CP$ asymmetries in charmless three-body decays of $B^\pm$ mesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.9$\,$fb$^{-1}$. The previously observed $CP$ asymmetry in $B^\pm \to π^\pm K^+ K^-$ decays is confirmed, and $CP$ asymmetries are observed with a significance of more than five standard deviations in the $B^\pm \to π^\pm π^+ π^-$ and $B^\pm \to K^\pm K^+ K^-$ decays, while the $CP$ asymmetry of $B^\pm \to K^\pm π^+ π^-$ decays is confirmed to be compatible with zero. The distributions of these asymmetries are also studied as a function of the three-body phase space and suggest contributions from rescattering and resonance interference processes. An indication of the presence of the decays $B^\pm \to π^\pm χ_{c0}(1P)$ in both $B^\pm \to π^\pm π^+ π^-$ and $B^\pm \to π^\pm K^+ K^-$ decays is observed, as is $CP$ violation involving these amplitudes.
description: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-049.html (LHCb public pages)
White Dwarf Stars as Polytropic Gas Spheres
Creators: name: Nouh, M. I.
name: Saad, A. S.
name: Elkhateeb, M. M.
name: Korany, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Due to the highly degeneracy of electrons in white dwarf stars, we expect that the relativistic effects play very important role in these stars. In the present article, we study the properties of the condensed matter in white dwarfs using Newtonian and relativistic polytropic fluid sphere. Two polytropic indices (namely n=3 and n=1.5) are proposed to investigate the physical characteristics of the models. We solve the Lane-Emden equations numerically.. The results show that the relativistic effect is small in white dwarf stars.
description: 5 figures, 1 table. arXiv admin note: text overlap with arXiv:astro-ph/0004317 by other authors
Comment on "Anisotropic Scattering Caused by Apical Oxygen Vacancies in Thin Films of Overdoped High-Temperature Cuprate Superconductors"
Creators: name: Özdemir, H. U.
name: Mishra, Vivek
name: Lee-Hone, N. R.
name: Kong, Xiangru
name: Berlijn, T.
name: Broun, D. M.
name: Hirschfeld, P. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In Phys. Rev. Lett. 128, 137001 (2022), Wang $\textit{et al}.$ address an important problem in the overdoped cuprates, taking the first steps toward understanding the structure of real defects in these materials, in this case the apical oxygen vacancy, $\mathrm{V}_\mathrm{O}$, that sits immediately above the planar Cu. However, the approach taken has some issues, which we outline in this Comment.
description: Comment on Phys. Rev. Lett. 128, 137001 (2022)
СИСТЕМНЫЕ ТРАНСФОРМАЦИИ В СФЕРЕ ОБРАЗОВАНИЯ В УСЛОВИЯХ ВНЕДРЕНИЯ ЦИФРОВЫХ ТЕХНОЛОГИЙ
Creators: name: ИВАНОВ О. Б.
name: ИВАНОВА С. В.
Publisher: name: Ценности и смыслы
Year: 2020
Subjects: ОБРАЗОВАНИЕ
ОБУЧЕНИЕ
ДИСТАНЦИОННОЕ ОБУЧЕНИЕ
ИНФОРМАЦИОННО-КОММУНИКАЦИОННЫЕ ТЕХНОЛОГИИ (ИКТ)
ЦИФРОВИЗАЦИЯ
DIGITAL-ТЕХНОЛОГИИ
ОНЛАЙН-ОБУЧЕНИЕ
ГЕЙМИФИКАЦИЯ
НАЦИОНАЛЬНЫЕ ПРОЕКТЫ
EDUCATION
TRAINING
DISTANCE LEARNING
INFORMATION AND COMMUNICATION TECHNOLOGIES (ICT)
DIGITALIZATION
DIGITAL TECHNOLOGIES
ONLINE LEARNING
GAMIFICATION
NATIONAL PROJECTS

description: В статье рассматривается проблема трансформации образования в информационную эпоху, в условиях противоречия, связанного с тем, что при необходимости образования быть первым, «обеспечивающим» звеном последующего развития производства, экономики и социальной жизни, в современных условиях оно не всегда успевает за технологическим развитием (в силу его революционных изменений), не успевает внедрить и освоить в целях повышения качества образования технические и технологические новшества. Иными словами, возникает коллизия. Образование должно обеспечивать позитивные изменения, эффективно реагировать на вызовы и угрозы эпохи. Однако фактически сфера образования зачастую отстает от темпа времени и запросов общества, бизнеса, государственного управления. Поэтому, на взгляд авторов, образование должно преодолеть инерцию и стать цивилизационным приоритетом на современном этапе развития общества. Авторы исследуют названную проблему и ее причины на основании данных разных стран, а также кратко представляют шаги, осуществляемые в Российской Федерации, которые могут способствовать преодолению сложившегося противоречия или, по крайней мере, снижению его остроты за счет создания технологических ресурсов, материально-технической базы и усиления внимания к подготовке соответствующих кадров с необходимыми компетенциями и готовностью к смене профессиональной деятельности в течение жизни. В статье рассматриваются основные тенденции трансформации информационно-коммуникационных технологий в современных реалиях; дается анализ преимуществ системы дистанционного образования. Особое внимание уделено проблемным зонам масштабного использования цифровых технологий, геймификации и другим аспектам применения digital-технологий.
Large complex correlated Wishart matrices: Fluctuations and asymptotic independence at the edges
Creators: name: Hachem, Walid
name: Hardy, Adrien
name: Najim, Jamal
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We study the asymptotic behavior of eigenvalues of large complex correlated Wishart matrices at the edges of the limiting spectrum. In this setting, the support of the limiting eigenvalue distribution may have several connected components. Under mild conditions for the population matrices, we show that for every generic positive edge of that support, there exists an extremal eigenvalue which converges almost surely toward that edge and fluctuates according to the Tracy-Widom law at the scale $N^{2/3}$. Moreover, given several generic positive edges, we establish that the associated extremal eigenvalue fluctuations are asymptotically independent. Finally, when the leftmost edge is the origin (hard edge), the fluctuations of the smallest eigenvalue are described by mean of the Bessel kernel at the scale $N^2$.
description: Published at http://dx.doi.org/10.1214/15-AOP1022 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
High-Order Implicit Time-Marching Methods Based on Generalized Summation-By-Parts Operators
Creators: name: Boom, Pieter D.
name: Zingg, David W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This article extends the theory of classical finite-difference summation-by-parts (FD-SBP) time-marching methods to the generalized summation-by-parts (GSBP) framework. Dual-consistent GSBP time-marching methods are shown to retain: A and L-stability, as well as superconvergence of integral functionals when integrated with the quadrature associated with the discretization. This also implies that the solution approximated at the end of each time step is superconvergent. In addition GSBP time-marching methods constructed with a diagonal norm are BN-stable. This article also formalizes the connection between FD-SBP/GSBP time-marching methods and implicit Runge-Kutta methods. Through this connection, the minimum accuracy of the solution approximated at the end of a time step is extended for nonlinear problems. It is also exploited to derive conditions under which nonlinearly stable GSBP time-marching methods can be constructed. The GSBP approach to time marching can simplify the construction of high-order fully-implicit Runge-Kutta methods with a particular set of properties favourable for stiff initial value problems, such as L-stability. It can facilitate the analysis of fully discrete approximations to PDEs and is amenable to to multi-dimensional spcae-time discretizations, in which case the explicit connection to Runge-Kutta methods is often lost. A few examples of known and novel Runge-Kutta methods associated with GSBP operators are presented. The novel methods, all of which are L-stable and BN-stable, include a four-stage seventh-order fully-implicit method, a three-stage third-order diagonally-implicit method, and a fourth-order four-stage diagonally-implicit method. The relative efficiency of the schemes is investigated and compared with a few popular non-GSBP Runge-Kutta methods.
Sharp Sensitivity Analysis for Inverse Propensity Weighting via Quantile Balancing
Creators: name: Dorn, Jacob
name: Guo, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistics Theory (math.ST)
subject: Econometrics (econ.EM)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Inverse propensity weighting (IPW) is a popular method for estimating treatment effects from observational data. However, its correctness relies on the untestable (and frequently implausible) assumption that all confounders have been measured. This paper introduces a robust sensitivity analysis for IPW that estimates the range of treatment effects compatible with a given amount of unobserved confounding. The estimated range converges to the narrowest possible interval (under the given assumptions) that must contain the true treatment effect. Our proposal is a refinement of the influential sensitivity analysis by Zhao, Small, and Bhattacharya (2019), which we show gives bounds that are too wide even asymptotically. This analysis is based on new partial identification results for Tan (2006)'s marginal sensitivity model.
description: This is an original manuscript of an article published by Taylor & Francis in the Journal of the American Statistical Association in 2022, available online: https://doi.org/10.1080/01621459.2022.2069572
ЦИФРОВОЙ ПОВОРОТ В РОССИЙСКОМ ОБРАЗОВАНИИ: ОТ ПРОБЛЕМ К ВОЗМОЖНОСТЯМ
Creators: name: КУЗНЕЦОВА В. Ю.
name: ГРИГОРЬЕВ А. В.
name: АЖМУХАМЕДОВ И. М.
name: ХРАПОВ С.А.
name: БАЕВА Л. В.
Publisher: name: Ценности и смыслы
Year: 2020
Subjects: ЦИФРОВИЗАЦИЯ ОБРАЗОВАНИЯ
ОЦЕНКА ВЛИЯНИЯ ЦИФРОВОГО ОБУЧЕНИЯ
РИСКИ
БЕЗОПАСНАЯ ЦИФРОВАЯ ОБРАЗОВАТЕЛЬНАЯ СРЕДА
DIGITALIZATION OF EDUCATION
ASSESSMENT OF THE IMPACT OF DIGITAL LEARNING
RISKS
SAFE DIGITAL EDUCATIONAL ENVIRONMENT

description: Процесс цифровизации образования является одним из мегатрендов современности, связанных с развитием информационного социума и модернизацией всех социальных институтов. Вынужденный переход системы образования на всех ее уровнях в дистанционный цифровой формат в условиях противодействия эпидемии COVID-19 вызвал необходимость изучения возникающих успехов и проблем цифровизации обучения в России. Особое внимание при этом оказалось связанным с вопросами безопасности цифровой образовательной среды для всех участников образовательного процесса. Целью исследования является оценка влияния цифровизации обучения на человека с позиции безопасности, а также диагностика возникающих проблем в системе основного образования, связанных с ситуацией форсированного «цифрового перехода» в условиях принятия противоэпидемических мер. Методология исследования связана с комплексной теорией безопасности, включающей ряд аспектов: информационный, социальный, когнитивный, витальный. Источниками информации для исследования явились: экспертный опрос преподавателей двадцати университетов мира, применяющих различные формы цифрового обучения, фокус-групповые исследования и онлайн-интервью с учителями и преподавателями колледжей, интернет-опросы, кейсы о практиках цифрового обучения. Результаты проведенных эмпирических и теоретических исследований позволили выявить основные узловые проблемы, возникающие на пути цифровизации обучения, систематизировать их по направленности и выработать рекомендации для профилактики и преодоления негативных сценариев. Обработка результатов показала, что наибольшие успехи в цифровизации обучения связаны с широтой охвата и гибкой настройкой учебного контента. В то же время определенные риски (потенциальные и реальные) для информационной безопасности связаны со сферами здорового образа жизни, социализации и коммуникации учащихся, а также с особенностями освоения учебного материала различными возрастными категориями. Полученные выводы могут быть использованы исследователями проблем развития цифрового социума, педагогами, администраторами информационных сетей, специалистами по обеспечению информационной безопасности.
Experimental control of transport resonances in a coherent quantum rocking ratchet
Creators: name: Grossert, Christopher
name: Leder, Martin
name: Denisov, Sergey
name: Hänggi, Peter
name: Weitz, Martin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The ratchet phenomenon is a means to get directed transport without net forces. Originally conceived to rectify stochastic motion and describe operational principles of biological motors, the ratchet effect can be used to achieve controllable coherent quantum transport. This transport is an ingredient of several perspective quantum devices including atomic chips. Here we examine coherent transport of ultra-cold atoms in a rocking quantum ratchet. This is realized by loading a rubidium atomic Bose-Einstein condensate into a periodic optical potential subjected to a biharmonic temporal drive. The achieved long-time coherence allows us to resolve resonance enhancement of the atom transport induced by avoided crossings in the Floquet spectrum of the system. By tuning the strength of the temporal modulations, we observe a bifurcation of a single resonance into a doublet. Our measurements reveal the role of interactions among Floquet eigenstates for quantum ratchet transport.
ЕСТЕСТВЕННОНАУЧНАЯ ГРАМОТНОСТЬ КАК УСЛОВИЕ АДАПТАЦИИ ЧЕЛОВЕКА К ЭПОХЕ ПЕРЕМЕН
Creators: name: МАНСУРОВА С. Е.
name: МАМЕДОВ Н. М.
Publisher: name: Ценности и смыслы
Year: 2020
Subjects: ЕСТЕСТВЕННОНАУЧНАЯ ГРАМОТНОСТЬ
ЕСТЕСТВОЗНАНИЕ
ЧЕЛОВЕКОЗНАНИЕ
УСТОЙЧИВОЕ РАЗВИТИЕ
АНТРОПОЛОГИЧЕСКИЙ КРИЗИС
ПОСТНЕКЛАССИЧЕСКОЕ ПОЗНАНИЕ
ПАНДЕМИЯ
SCIENCE LITERACY
SCIENCE
HUMAN KNOWLEDGE
SUSTAINABLE DEVELOPMENT
ANTHROPOLOGICAL CRISIS
POSTNONCLASSICAL KNOWLEDGE
PANDEMIC

description: Естествознание - важнейший фактор формирования научного мировоззрения, предпосылка технического и социально-экономического развития общества. Одной из ключевых характеристик личности современной кризисной эпохи является естественнонаучная грамотность, которая связана с умениями критически осмыслить естественнонаучные проблемы и занимать по ним активную гражданскую, то есть ответственную позицию. Естественнонаучная грамотность индивида - необходимое условие его адаптации к цивилизации XXI века. Проблема формирования естественнонаучной грамотности актуализировалась на фоне новых научных открытий, качественных сдвигов в технологиях, с очевидностью высветилась в ситуации пандемии COVID-19. Естественнонаучная грамотность причинно связана с естественнонаучным образованием и естественнонаучным познанием, в основе которых - современные представления о единстве природы, человека и общества. Соответственно, основанием для формирования естественнонаучной грамотности является содержание взаимосвязанных разделов естествознания и человекознания. Методология формирования естественнонаучной грамотности в современных условиях имеет свои особенности. Она основана на идеях постнеклассического познания, концепции устойчивого развития, принципах интеграции, гуманизации, экологизации, деятельностном и компетентностном подходах.
Temporalité des connaissances vs temporalité des données
Creators: name: Galaretta, Daniel
Publisher: name: Zenodo
Year: 2022
Subjects: temps, temporalité, données, information, connaissance

description: Si on convient d’assimiler la production des connaissances à une pratique signifiante, – au même titre que l’est toute pratique langagière – on est en droit de se demander comment cette pratique est sous la dépendance d’une temporalité. Il est alors naturel de se demander si les données qui sont produites en référence à ces connaissances, vont être soumises à une temporalité identique. Cette question a une portée à la fois pratique et théorique. Du point de vue pratique, cela revient à se s’interroger sur les limites de réutilisation de données, longtemps après leur production, soit avec la même finalité, soit avec une finalité différente. Ce dernier aspect est en lien avec la question d’estimer le potentiel d’innovation que représente la disposition de données, que ce soit en général ou dans le cas de données particulières considérées dans un contexte particulier. Du point de vue théorique, cette question conduit à élucider les dépendances existantes entre connaissance et donnée. En adoptant une méthodologie adaptée à la description d’une pratique signifiante – savoir une méthodologie sémiotique – , on est conduit à poser que la production d’une connaissance est une condition nécessaire à la production d’une donnée (c’est-à-dire Production(données) => Production(connaissance)). On notera au passage que cette implication va à l’encontre de l’usage courant qui postule que les données sont les briques de bases à partir desquelles on produit successivement, d’abord des informations puis des connaissances. Si on admet comme nous le faisons, que la production de connaissances s’apparente à un processus de négociation entre plusieurs points de vue, on est amené à introduire au niveau de la description de ce processus, des données. Cela ne revient pas à réhabiliter l’acception erronée selon nous, de donnée brute, et partant, un principe d’induction dans la production de connaissance. A ce stade, la description des données, nécessite de préciser la notion de vue selon un point de vue. Si la vue correspond – en utilisant la terminologie de L Hjelmslev – à la manifestation d’une substance dans une forme (c’est-à-dire à la correspondance : substance ® forme), on va être conduit à décrire une substance en termes de niveaux ou de strates. Cette analyse toute hjelmslevienne, va nous permettre, en la formulant en termes d’un sémiotique multi-points de vue, de proposer une interprétation – selon les substances – de la notion d’expression et de contenu. Cette interprétation distinguera la présence d’une temporalité à l’œuvre dans un cas et mise entre parenthèses dans l’autre cas.
AC loss and coupling currents in YBCO coated conductors with varying number of filaments
Creators: name: Demencik, Eduard
name: Vojenciak, Michal
name: Kario, Anna
name: Nast, Rainer
name: Jung, Alexandra
name: Goldacker, Wilfried
name: Grilli, Francesco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Striation of HTS coated conductors (CCs) as a way to reduce their magnetization AC losses has been the subject of intense research in the past years by several groups. While the principle of this approach is well understood, its practical application on commercial material to be used in power application is still far to be implemented due to manufacturing and technological constraints. Recent advances in tape quality and striation technology are now enabling systematic investigations of the influence of the number of filaments on AC loss reduction with a consistency that was not available in the past. In this work we demonstrate the technological feasibility of reducing the magnetization losses of commercially available CC by striating them into a high number of filaments (up to 120). The loss reduction exceeds one order of magnitude and does not come at the expense of current-carrying capability: samples with 10 and 20 filaments are unaffected by the striation process, while samples with 80 and 120 filaments still retain 80 and 70% of the current-carrying potential, respectively. We also investigate the transverse resistivity in order to understand the paths followed by the coupling currents: we found that the coupling current prevalently flows in the metallic substrate, rather than in and out of the filaments. Finally, we use oxidation as a method to reduce the coupling currents and losses. The contribution of this work is three-fold: 1) It describes the know-how to produce a large number of high quality striations in commercially available CCs, greatly reducing their losses without extensively degrading their transport properties; 2) It provides a comprehensive characterization of said samples (e.g. measurements in a wide frequency range, transverse resistance profiles, influence of oxidation on DC and AC behavior); 3) It provides new insight on the patterns of the coupling currents.
БАЗОВЫЕ ЦЕННОСТИ ВЕЛИКОБРИТАНИИ ВЧЕРА И СЕГОДНЯ
Creators: name: КОРНИЕНКО О. Ю.
Publisher: name: Ценности и смыслы
Year: 2020
Subjects: ВЕЛИКАЯ ХАРТИЯ ВОЛЬНОСТЕЙ
ПОЛИТИЧЕСКИЕ ЦЕННОСТИ
ВЕРХОВЕНСТВО ЗАКОНА
СВОБОДА ЛИЧНОСТИ
НЕПРИКОСНОВЕННОСТЬ ЧАСТНОЙ СОБСТВЕННОСТИ
ИНСТИТУТЫ КОРОЛЕВСКОЙ ВЛАСТИ
БЛЕНДЫ
MAGNA CARTA
POLITICAL VALUES
THE RULE OF LAW
PERSONAL FREEDOM
PRIVATE PROPERTY RIGHTS
INSTITUTIONS OF ROYAL POWER
BLENDS

description: Статья посвящена важнейшей социальной проблеме современности - идентичности, базовым ценностям и смыслам национального самосознания, актуальным вчера и сегодня во многих странах. Целью исследования является понимание процесса формирования и развития политической идентичности в Великобритании, что важно в условиях неуверенности граждан в своем будущем и значительных миграционных потоков, от которых сегодня страдает идентичность многих европейских стран. Принятые подходы рассмотрения проблем идентичности основываются, в основном, на анализе реалий сегодняшнего момента. Автор придерживается мнения, что истоки многих современных социальных явлений имеют исторические корни. В центре внимания находится тесная связь утверждаемых сегодня политических ценностей Великобритании с Великой хартией вольностей 1215 года, основополагающим для развития политической идентичности документом Великобритании. Другим важнейшим аспектом исследования является понимание сегодняшнего состояния британского общества в плане осознания важности идентификационных ценностей. В результате исследования была установлена тесная связь между провозглашаемыми политическими ценностями и положениями статей Хартии, а также показан срез актуальных социальных проблем в стране в плане восприятия активной частью населения ценностей. Автор приходит к выводу, что современная социокультурная парадигма Великобритании обусловлена положениями при нятого в тринадцатом веке политико-правового документа «Великая хартия ценностей», которые остаются актуальными для политической идентичности страны сегодня.
Strong Simulation of Linear Optical Processes
Creators: name: Heurtel, Nicolas
name: Mansfield, Shane
name: Senellart, Jean
name: Valiron, Benoît
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we provide an algorithm and general framework for the simulation of photons passing through linear optical interferometers. Given $n$ photons at the input of an $m$-mode interferometer, our algorithm computes the probabilities of all possible output states with time complexity $O\left({n\binom{n+m-1}{m-1}}\right)$, linear in the number of output states $\binom{n+m-1}{m-1}$. It outperforms the permanent-based method by an exponential factor, and for the restricted problem of computing the probability for one given output it improves the time complexity over the state-of-the-art for the permanent of matrices with multiple rows or columns, with a tradeoff in the memory usage. Our algorithm also has additional versatility by virtue of its use of memorisation -- the storing of intermediate results -- which is advantageous in situations where several input states may be of interest. Additionally it allows for hybrid simulations, in which outputs are sampled from output states whose probability exceeds a given threshold, or from a restricted set of states. We consider a concrete, optimised implementation, and we benchmark the efficiency of our approach compared to existing tools.
description: 26 pages