cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New High-Order Numerical Methods for Hyperbolic Systems of Nonlinear PDEs with Uncertainties
Creators: name: Chertock, Alina
name: Herty, Michael
name: Iskhakov, Arsen S.
name: Janajra, Safa
name: Kurganov, Alexander
name: Lukacova-Medvidova, Maria
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we develop new high-order numerical methods for hyperbolic systems of nonlinear partial differential equations (PDEs) with uncertainties. The new approach is realized in the semi-discrete finite-volume framework and is based on fifth-order weighted essentially non-oscillatory (WENO) interpolations in (multidimensional) random space combined with second-order piecewise linear reconstruction in physical space. Compared with spectral approximations in the random space, the presented methods are essentially non-oscillatory as they do not suffer from the Gibbs phenomenon while still achieving high-order accuracy. The new methods are tested on a number of numerical examples for both the Euler equations of gas dynamics and the Saint-Venant system of shallow-water equations. In the latter case, the methods are also proven to be well-balanced and positivity-preserving.
On a reduced sparsity stabilization of grad-div type for incompressible flow problems
Creators: name: Linke, Alexander
name: Rebholz, Leo
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: grad-div stabilization
subject: mass conservation
subject: Navier-Stokes equations
subject: modified pressure
subject: 76D07
subject: 65N30

description: We introduce a new operator for stabilizing error that arises from the weak enforcement of mass conservation in finite element simulations of incompressible flow problems. We show this new operator has a similar positive effect on velocity error as the well-known and very successful grad-div stabilization operator, but the new operator is more attractive from an implementation standpoint because it yields a sparser block structure matrix. That is, while grad-div produces fully coupled block matrices (i.e. block-full), the matrices arising from the new operator are block-upper triangular in two dimensions, and in three dimensions the 2,1 and 3,1 blocks are empty. Moreover, the diagonal blocks of the new operator's matrices are identical to those of grad-div. We provide error estimates and numerical examples for finite element simulations with the new operator, which reveals the significant improvement in accuracy it can provide. Solutions found using the new operator are also compared to those using usual grad-div stabilization, and in all cases, solutions are found to be very similar.
Chaos Driven Decay of Nuclear Giant Resonances: Route to Quantum Self-Organization
Creators: name: Drozdz, S.
name: Nishizaki, S.
name: Wambach, J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The influence of background states with increasing level of complexity on the strength distribution of the isoscalar and isovector giant quadrupole resonance in $^{40}$Ca is studied. It is found that the background characteristics, typical for chaotic systems, strongly affects the fluctuation properties of the strength distribution. In particular, the small components of the wave function obey a scaling law analogous to self-organized systems at the critical state. This appears to be consistent with the Porter-Thomas distribution of the transition strength.
description: 14 pages, 4 Figures, Illinois preprint P-93-12-106, Figures available from the authors
Estimating the D-line Energy Splitting of Alkali Metals Using a Modified Perturbation Method
Creators: name: Stewart, E. Holt
name: Barlow, Douglas A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report here on how a known method from standard perturbation theory for estimating the energy of the D-line splitting in hydrogen can be modified to effectively approximate this quantity for all of the alkali metals. The approach utilizes a Rayleigh- Schrodinger perturbation theory first order correction to the energy. The perturbing Hamiltonian is the standard relativistically corrected spin-orbit Hamiltonian. From this, one derives an energy difference between the doublet lines that is theoretically appropriate for any one electron atom. This energy difference is written in terms of the Bohr energy. The results are good for hydrogen but, as expected, are significantly off from the experimental values for the multi-electron alkali metals. We show here that by replacing the Bohr energy with a first ionization potential, that the theory then gives greatly improved values for the D level splitting energy. However, this approach overestimates the splitting energy for the light alkali metals and underestimates it for the heavy ones. The best result was for Rb where the estimate only varied from the experimentally reported value by 3.2%. The modified theory is shown to yield accurate results for all of the alkali metals when the original Bohr energy is adjusted with an appropriate screening constant. Screening constants generated using the Slater scheme however, which yield accurate estimates for ionization potentials, do not give the correct results for the D line splitting energies. A method is given whereby effective screening constants can be computed. These screening constants are found to be a function of the atomic number with constant coefficients that can be estimated by the ratio of cation to atomic radii. We conclude that the discrepancy in screening constants is due to electron-relaxation, a phenomenon that occurs during ionization.
title: "Lipodystrophies associées aux antirétroviraux"
Creators: name: Leibowitch, Jacques (1942-2020)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: 1 fichier
description: created: start=2000;end=2003
Computational design of NDR tunnel diodes with high peak-to-valley current ratio based on two-dimensional cold metals: The case of NbSi$_2$N$_4$/HfSi$_2$N$_4$/NbSi$_2$N$_4$ lateral heterojunction diode
Creators: name: Bodewei, P.
name: Şaşıoğlu, E.
name: Hinsche, N. F.
name: Mertig, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cold metals have recently gained attention as a promising platform for innovative devices, such as tunnel diodes with negative differential resistance (NDR) and field-effect transistors with subthreshold swings below the thermionic limit. Recently discovered two-dimensional (2D) MA$_2$Z$_4$ (M = Ti, Zr, Hf, Nb, Ta; A = Si, Ge; Z = N, P) compounds exhibit both cold metallic and semiconducting behavior. In this work, we present a computational study of lateral heterojunction tunnel diodes based on 2D NbSi$_2$N$_4$ and HfSi$_2$N$_4$ compounds. Employing density functional theory combined with a nonequilibrium Green function method, we investigate the current-voltage ($I$-$V$) characteristics of lateral tunnel diodes with varying barrier thicknesses in both zigzag and armchair orientations. We find that tunnel diodes in the zigzag orientation exhibit significantly higher peak current densities, while those in the armchair orientation display larger peak-to-valley current ratios (PVCRs) compared to the zigzag orientation. Our findings suggest that MA$_2$Z$_4$ materials are promising candidates for realizing NDR tunnel diodes with high PVCR values, which could have potential applications in memory, logic circuits, and other electronic devices.
description: ver3.0 with supplemental material
Bathymetric and subglacial hydrological context for the basal melting of Antarctic ice shelves
Creators: name: Wei, Wei
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Ice shelf
Bathymetry
Basal melting
Subglacial discharges

description: Today, Antarctica holds a 58 m (190 ft) sea level potential locked in its grounded ice. Ice shelves serve as a gatekeeper to this grounded ice. However, sea level is currently rising at an alarming rate, ultimately endangering lives and economies all over the world. To accurately project the future sea level in an ever-changing climate requires a deeper understanding of how ice shelves respond to environmental changes. Hence, this dissertation seeks to further our understanding of the ice-ocean-interaction process by investigating the mechanisms causing ice shelf changes and the sensitivity of ice shelves to changes in their oceanic environment. To achieve this, a combination of observation and modeling approaches are deployed. We provide the bathymetric and subglacial discharge context for two significant ice shelves, Getz Ice Shelf in West Antarctica and West Ice Shelf in East Antarctica. Getz Ice Shelf is the largest meltwater source from Antarctica to the Southern Ocean, highlighting a need to understand what factors control its melt rate. West Ice Shelf was the least-sampled ice shelf in East Antarctica and potentially sensitive to subglacial discharge forcing. For both regions, we show in this work that subglacial discharge plays a significant role in controlling the basal melt rate. In particular, the melt rate of West Ice Shelf is primarily controlled by sub-glacial discharges. We also infer the bathymetry beneath the two ice shelves from airborne geophysical data, from which we gain first insights on the potential pathways of the Circumpolar Deep Water, which is believed to intrude into the cavity beneath the ice shelf and drive the high basal melt rates at depth. Moreover, we demonstrate the importance of accurate and high-resolution ocean bathymetry for determining modified Circumpolar Deep Water pathways and ice shelf melt rates
The Properties of the Galactic Hot Gaseous Halo from X-ray Emission
Creators: name: Li, Yunyang
name: Bregman, Joel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The extended hot X-ray emitting gaseous halo of the Milky Way has an optical depth $\sim1$ for the dominant emission lines of \ion{O}{7} and \ion{O}{8}, which are used to infer the halo properties. To improve on halo gas properties, we treat optical depth effects with a Monte-Carlo radiative transfer model, which leads to slightly steeper density profiles ($β\approx 0.5$) than if optical depths effects were ignored. For the preferred model where the halo is rotating on cylinders at $180$ km s$^{-1}$, independent fits to both lines lead to identical results, where the core radius is $2.5$ kpc and the turbulent component of the Doppler b parameter is $100-120$ km s$^{-1}$; the turbulent pressure is $20\%$ of the thermal pressure. The fit is improved when emission from a disk is included, with a radial scale length of $3$ kpc (assumed) and a fitted vertical scale height of approximately $1.3$ kpc. The disk component is a minor mass constituent and has low optical depth, except at low latitudes. The gaseous mass is $3-4\times10^{10}\,M_{\odot}$ within $250\,\mathrm{kpc}$, similar to our previous determinations and significantly less than the missing baryons of $1.7\times10^{11}\,M_{\odot}$.
Interior spacetimes sourced by stationary differentially rotating irrotational cylindrical fluids: anisotropic pressure
Creators: name: Célérier, Marie-Noëlle
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a recent series of papers new exact analytical interior spacetimes sourced by stationary rigidly rotating cylinders of fluids have been displayed. A fluid with an axially directed pressure has been first considered, then a perfect fluid, followed by a fluid with an azimuthally directed pressure, and, finally, by a fluid where the pressure is radially oriented. The perfect fluid configuration has subsequently been extended to the case of differential rotation. In the present paper, three different cases of anisotropic pressure analogous to those studied for rigidly rotating motion are considered in turn for differentially rotating fluids. General methods for generating mathematical solutions to the field equations and physically well-behaved examples are displayed for the axial and azimuthal pressure cases. As regards radial pressure fluids, four classes of solutions naturally emerge from the corresponding Einstein's equations, among which one class, after being fully integrated, exhibits physically well-behaved solutions.
description: 26 pages, no figure. arXiv admin note: text overlap with arXiv:2307.13547, arXiv:2307.07263, arXiv:2308.01815
Contributions to the mixed-alkali effect in molecular dynamics simulations of alkali silicate glasses
Creators: name: Lammert, Heiko
name: Heuer, Andreas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mixed-alkali effect on the cation dynamics in silicate glasses is analyzed via molecular dynamics simulations. Observations suggest a description of the dynamics in terms of stable sites mostly specific to one ionic species. As main contributions to the mixed--alkali slowdown longer residence times and an increased probability of correlated backjumps are identified. The slowdown is related to the limited accessibility of foreign sites. The mismatch experienced in a foreign site is stronger and more retarding for the larger ions, the smaller ions can be temporarily accommodated. Also correlations between unlike as well as like cations are demonstrated that support cooperative behavior.
description: 10 pages, 12 figures, 1 table, revtex4, submitted to Phys. Rev. B
Charting the Parameter Space of the 21-cm Power Spectrum
Creators: name: Cohen, Aviad
name: Fialkov, Anastasia
name: Barkana, Rennan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The high-redshift 21-cm signal of neutral hydrogen is expected to be observed within the next decade and will reveal epochs of cosmic evolution that have been previously inaccessible. Due to the lack of observations, many of the astrophysical processes that took place at early times are poorly constrained. In recent work we explored the astrophysical parameter space and the resulting large variety of possible global (sky-averaged) 21-cm signals. Here we extend our analysis to the fluctuations in the 21-cm signal, accounting for those introduced by density and velocity, Ly$α$ radiation, X-ray heating, and ionization. While the radiation sources are usually highlighted, we find that in many cases the density fluctuations play a significant role at intermediate redshifts. Using both the power spectrum and its slope, we show that properties of high-redshift sources can be extracted from the observable features of the fluctuation pattern. For instance, the peak amplitude of ionization fluctuations can be used to estimate whether heating occurred early or late and, in the early case, to also deduce the cosmic mean ionized fraction at that time. The slope of the power spectrum has a more universal redshift evolution than the power spectrum itself and can thus be used more easily as a tracer of high-redshift astrophysics. Its peaks can be used, for example, to estimate the redshift of the Ly$α$ coupling transition and the redshift of the heating transition (and the mean gas temperature at that time). We also show that a tight correlation is predicted between features of the power spectrum and of the global signal, potentially yielding important consistency checks.
description: Submitted to MNRAS, 25 pages, 15 figures, 2 tables
SI from Confined La2O3 particles in mesoporous carbon material for enhanced phosphate adsorption
Creators: name: Ju, Xiaoqiu
name: Cui, He
name: Liu, Tao
name: Sun, Yabing
name: Zheng, Shourong
name: Qu, Xiaolei
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Chemistry

description: Surpporting Information
title: El Mejdub
Creators: name: Gutova, Evgeniya
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Senhaja de Srair (Zerqet)
subject: sjs

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: This story builds on the local legend that Abderrahman Lmejdub (El Majdoub) left the Senhaja people communicating with a mixed (or mixed-up) language. The story explains why this language is mixed with pieces of many languages.
Modular Bootstrap for Boundary N=2 Liouville Theory
Creators: name: Eguchi, Tohru
name: Sugawara, Yuji
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the boundary N=2 Liouville theory based on the ``modular bootstrap'' approach. As fundamental conformal blocks we introduce the ``extended characters'' that are defined as the proper sums over spectral flows of irreducible characters of the N=2 superconformal algebra (SCA) and clarify their modular transformation properties in models with rational central charges. We then try to classify the Cardy states describing consistent D-branes based on the modular data. We construct the analogues of ZZ-branes (hep-th/0101152), localized at the strong coupling region, and the FZZT-branes (hep-th/0001012, hep-th/0009138), which extend along the Liouville direction. The former is shown to play important roles to describe the BPS D-branes wrapped around vanishing cycles in deformed Calabi-Yau singularities, reproducing the correct intersection numbers of vanishing cycles. We also discuss the non-BPS D-branes in 2d type 0 (and type II) string vacua composed of the N=2 Liouville with $\hat{c}(\equiv c/3)=5$. Unstable D0-branes are found as the ZZ-brane analogues mentioned above, and the FZZT-brane analogues are stable due to the existence of mass gap despite the lack of GSO projection.
description: 52 pages, no figure; v2 a reference added, minor corrections, a footnote added in page 8; v3 comments added for clarifications, summary of proposed boundary states added, version to appear in JHEP; v4 a reference added
FlowMur: A Stealthy and Practical Audio Backdoor Attack with Limited Knowledge
Creators: name: Lan, Jiahe
name: Wang, Jie
name: Yan, Baochen
name: Yan, Zheng
name: Bertino, Elisa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Speech recognition systems driven by DNNs have revolutionized human-computer interaction through voice interfaces, which significantly facilitate our daily lives. However, the growing popularity of these systems also raises special concerns on their security, particularly regarding backdoor attacks. A backdoor attack inserts one or more hidden backdoors into a DNN model during its training process, such that it does not affect the model's performance on benign inputs, but forces the model to produce an adversary-desired output if a specific trigger is present in the model input. Despite the initial success of current audio backdoor attacks, they suffer from the following limitations: (i) Most of them require sufficient knowledge, which limits their widespread adoption. (ii) They are not stealthy enough, thus easy to be detected by humans. (iii) Most of them cannot attack live speech, reducing their practicality. To address these problems, in this paper, we propose FlowMur, a stealthy and practical audio backdoor attack that can be launched with limited knowledge. FlowMur constructs an auxiliary dataset and a surrogate model to augment adversary knowledge. To achieve dynamicity, it formulates trigger generation as an optimization problem and optimizes the trigger over different attachment positions. To enhance stealthiness, we propose an adaptive data poisoning method according to Signal-to-Noise Ratio (SNR). Furthermore, ambient noise is incorporated into the process of trigger generation and data poisoning to make FlowMur robust to ambient noise and improve its practicality. Extensive experiments conducted on two datasets demonstrate that FlowMur achieves high attack performance in both digital and physical settings while remaining resilient to state-of-the-art defenses. In particular, a human study confirms that triggers generated by FlowMur are not easily detected by participants.
description: To appear at lEEE Symposium on Security & Privacy (Oakland) 2024
Spectrum and amplitude equations for scalar delay-differential equations with large delay
Creators: name: Yanchuk, Serhiy
name: Lücken, Leonhard
name: Wolfrum, Matthias
name: Mielke, Alexander
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: amplitude equations
subject: delay-differential equations
subject: large delay
subject: 34K08
subject: 35Q56

description: The subject of the paper are scalar delay-differential equations with large delay. Firstly, we describe the asymptotic properties of the spectrum of linear equations. Using these properties, we classify possible types of destabilization of steady states. In the limit of large delay, this classification is similar to the one for parabolic partial differential equations. We present a derivation and error estimates for amplitude equations, which describe universally the local behavior of scalar delay-differential equations close to the destabilization threshold.
The Metacognitive Demands and Opportunities of Generative AI
Creators: name: Tankelevitch, Lev
name: Kewenig, Viktor
name: Simkute, Auste
name: Scott, Ava Elizabeth
name: Sarkar, Advait
name: Sellen, Abigail
name: Rintel, Sean
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Generative AI (GenAI) systems offer unprecedented opportunities for transforming professional and personal work, yet present challenges around prompting, evaluating and relying on outputs, and optimizing workflows. We argue that metacognition$\unicode{x2013}$the psychological ability to monitor and control one's thoughts and behavior$\unicode{x2013}$offers a valuable lens to understand and design for these usability challenges. Drawing on research in psychology and cognitive science, and recent GenAI user studies, we illustrate how GenAI systems impose metacognitive demands on users, requiring a high degree of metacognitive monitoring and control. We propose these demands could be addressed by integrating metacognitive support strategies into GenAI systems, and by designing GenAI systems to reduce their metacognitive demand by targeting explainability and customizability. Metacognition offers a coherent framework for understanding the usability challenges posed by GenAI, and provides novel research and design directions to advance human-AI interaction.
Convergence of an implicit Voronoi finite volume method for reaction-diffusion problems
Creators: name: Fiebach, André
name: Glitzky, Annegret
name: Linke, Alexander
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: reaction-diffusion systems
subject: heterostructures
subject: finite volume method
subject: convergence
subject: long-term simulation
subject: 35K57
subject: 35R05
subject: 65M08
subject: 65M12
subject: 80A30

description: We investigate the convergence of an implicit Voronoi finite volume method for reaction- diffusion problems including nonlinear diffusion in two space dimensions. The model allows to handle heterogeneous materials and uses the chemical potentials of the involved species as primary variables. The numerical scheme uses boundary conforming Delaunay meshes and preserves positivity and the dissipative property of the continuous system. Starting from a result on the global stability of the scheme (uniform, mesh-independent global upper and lower bounds), we prove strong convergence of the chemical activities and their gradients to a weak solution of the continuous problem. In order to illustrate the preservation of qualitative properties by the numerical scheme, we present a long-term simulation of the Michaelis-Menten-Henri system. Especially, we investigate the decay properties of the relative free energy and the evolution of the dissipation rate over several magnitudes of time, and obtain experimental orders of convergence for these quantities.
Renormalization group flows and fixed points for a scalar field in curved space with nonminimal $F(ϕ)R$ coupling
Creators: name: Merzlikin, Boris S.
name: Shapiro, Ilya L.
name: Wipf, Andreas
name: Zanusso, Omar
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using covariant methods, we construct and explore the Wetterich equation for a non-minimal coupling $F(ϕ)R$ of a quantized scalar field to the Ricci scalar of a prescribed curved space. This includes the often considered non-minimal coupling $ξϕ^2 R$ as a special case. We consider the truncations without and with scale- and field-dependent wave function renormalization in dimensions between four and two. Thereby the main emphasis is on analytic and numerical solutions of the fixed point equations and the behavior in the vicinity of the corresponding fixed points. We determine the non-minimal coupling in the symmetric and spontaneously broken phases with vanishing and non-vanishing average fields, respectively. Using functional perturbative renormalization group methods, we discuss the leading universal contributions to the RG flow below the upper critical dimension $d=4$.
description: 17 pages, 4 figures
Large-deviation principles for connectable receivers in wireless networks
Creators: name: Hirsch, Christian
name: Jahnel, Benedikt
name: Keeler, Paul
name: Patterson, Robert I. A.
Publisher: name: Weierstrass Institute
Year: 2015
Subjects: subject: wireless network
subject: signal-to-interference-and-noise ratio
subject: large-deviation principle
subject: importance sampling
subject: 60F10
subject: 60K35

description: We study large-deviation principles for a model of wireless networks consisting of Poisson point processes of transmitters and receivers, respectively. To each transmitter we associate a family of connectable receivers whose signal-to-interference-and-noise ratio is larger than a certain connectivity threshold. First, we show a large-deviation principle for the empirical measure of connectable receivers associated with transmitters in large boxes. Second, making use of the observation that the receivers connectable to the origin form a Cox point process, we derive a large-deviation principle for the rescaled process of these receivers as the connection threshold tends to zero. Finally, we show how these results can be used to develop importance-sampling algorithms that substantially reduce the variance for the estimation of probabilities of certain rare events such as users being unable to connect.
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Cart. 193 (11 H 78), f. 0171r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0171r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome IX, Archives départementales de la Côte-d'Or, Cart. 193 (11 H 78), f. 0171r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Bounded Stationary Reflection
Creators: name: Cummings, James
name: Lambie-Hanson, Chris
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We prove that, assuming large cardinals, it is consistent that there are many singular cardinals µ such that every stationary subset of µ+ reflects but there are stationary subsets of µ+ that do not reflect at ordinals of arbitrarily high cofinality. This answers a question raised by Todd Eisworth
Additional file 1 of Early treatment monitoring of multidrug-resistant tuberculosis based on CT radiomics of cavity and cavity periphery
Creators: name: Lv, Xinna
name: Li, Ye
name: Ding, Chenyu
name: Qin, Lixin
name: Xu, Xiaoyue
name: Zheng, Ziwei
name: Hou, Dailun
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: ELECTRONIC SUPPLEMENTARY MATERIAL
Meson phase space density from interferometry
Creators: name: Bertsch, George F.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The interferometric analysis of meson correlations provides a measure of the average phase space density of the mesons in the final state. This quantity is a useful indicator of the statistical properties of the system, and it can be extracted with a minimum of model assumptions. Values obtained from recent measurements are consistent with the thermal value, but do not rule out superradiance effects.
description: 4pages
NuSTAR Hard X-ray Observation of the Gamma-ray Binary Candidate HESS J1832-093
Creators: name: Mori, Kaya
name: Gotthelf, E. V.
name: Hailey, Charles J.
name: Hord, Ben J.
name: Wilhelmi, Emma de Ona
name: Rahoui, Farid
name: Tomsick, John A.
name: Zhang, Shuo
name: Hong, Jaesub
name: Garvin, Amani M.
name: Boggs, Steven E.
name: Christensen, Finn E.
name: Craig, William W.
name: Harrison, Fiona A.
name: Stern, Daniel
name: Zhang, William W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a hard X-ray observation of the TeV gamma-ray binary candidate HESS J1832-093 coincident with supernova remnant (SNR) G22.7-0.2 using the Nuclear Spectroscopic Telescope Array (NuSTAR). Non-thermal X-ray emission from XMMU J183245-0921539, the X-ray source associated with HESS J1832-093, is detected up to ~30 keV and is well-described by an absorbed power-law model with the best-fit photon index $Γ= 1.5\pm0.1$. A re-analysis of archival Chandra and XMM-Newton data finds that the long-term X-ray flux increase of XMMU J183245-0921539 is $50^{+40}_{-20}$% (90% C.L.), much less than previously reported. A search for a pulsar spin period or binary orbit modulation yields no significant signal to a pulse fraction limit of fp < 19% in the range 4 ms < P < 40 ks. No red noise is detected in the FFT power spectrum to suggest active accretion from a binary system. While further evidence is required, we argue that the X-ray and gamma-ray properties of XMMU J183245-0921539 are most consistent with a non-accreting binary generating synchrotron X- rays from particle acceleration in the shock formed as a result of the pulsar and stellar wind collision. We also report on three nearby hard X-ray sources, one of which may be associated with diffuse emission from a fast-moving supernova fragment interacting with a dense molecular cloud.
description: ApJ in press. 9 pages
Additional file 2: of Outcomes of bisphosphonate and its supplements for bone loss in kidney transplant recipients: a systematic review and network meta-analysis
Creators: name: Yang, Yan
name: Qiu, Shi
name: Deng, Linghui
name: Tang, Xi
name: Li, Xinrui
name: Wei, Qiang
name: Fu, Ping
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Hematology

description: Risk of bias assessments within studies. (DOCX 675 kb)
Supplementary Figure S1 from Phylogenetic analyses of ray-finned fishes (Actinopterygii) using collagen type I protein sequences
Creators: name: Harvey, Virginia L.
name: Keating, Joseph N.
name: Buckley, Michael
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Collagen peptide mass fingerprint for the salmon, Salmo salar, which visualises both isoforms of various peptides from each amino acid α-chain
Proceedings First Workshop on Formal Verification of Autonomous Vehicles
Creators: name: Bulwahn, Lukas
name: Kamali, Maryam
name: Linker, Sven
Publisher: name: arXiv
Year: 2017
Subjects: subject: Systems and Control (eess.SY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: These are the proceedings of the workshop on Formal Verification of Autonomous Vehicles, held on September 19th, 2017 in Turin, Italy, as an affiliated workshop of the International Conference on integrated Formal Methods (iFM 2017). The workshop aim is to bring together researchers from the formal verification community that are developing formal methods for autonomous vehicles as well as researchers working, e.g., in the area of control theory or robotics, interested in applying verification techniques for designing and developing of autonomous vehicles.
Resolving the Controversy Over the Core Radius of 47 Tucanae (NGC 104)
Creators: name: Howell, Justin H.
name: Guhathakurta, Puragra
name: Gilliland, Ronald L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper investigates the discrepancy between recent measurements of the density profile of the globular cluster 47 Tuc that have used HST data sets. Guhathakurta et al. (1992) used pre-refurbishment WFPC1 V-band images to derive r_c = 23" +/- 2". Calzetti et al. (1993) suggested that the density profile is a superposition of two King profiles (r_c = 8" and r_c = 25") based on U-band FOC images. De Marchi et al. (1996) used deep WFPC1 U-band images to derive r_c = 12" +/- 2". Differences in the adopted cluster centers are not the cause of the discrepancy. Our independent analysis of the data used by De Marchi et al. reaches the following conclusions: (1) De Marchi et al.'s r_c ~ 12" value is spuriously low, a result of radially-varying bias in the star counts in a magnitude limited sample -- photometric errors and a steeply rising stellar luminosity function cause more stars to scatter across the limiting magnitude into the sample than out of it, especially near the cluster center where crowding effects are most severe. (2) Changing the limiting magnitude to the main sequence turnoff, away from the steep part of the luminosity function, partially alleviates the problem and results in r_c = 18". (3) Combining such a limiting magnitude with accurate photometry derived from PSF fitting, instead of the less accurate aperture photometry employed by De Marchi et al., results in a reliable measurement of the density profile which is well fit by r_c = 22" +/- 2". Archival WFPC2 data are used to derive a star list with a higher degree of completeness, greater photometric accuracy, and wider areal coverage than the WFPC1 and FOC data sets; the WFPC2-based density profile supports the above conclusions, yielding r_c = 24" +/- 1.9".
description: 22 pages, 5 figures, 1 table; accepted for publication in PASP; see http://www.ucolick.org/~raja/hgg.tar.gz for full-resolution figures
title: Deuil
Creators: name: Ehrhart, Sabine
name: Rivierre, Jean-Claude
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Bwatoo
subject: bwa

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Additional file 1 of Cobalt-induced oxidative stress and defense responses of Adhatoda vasica proliferated shoots
Creators: name: Radi, Abeer A.
name: Farghaly, Fatma A.
name: Al-Kahtany, Fatma A.
name: Zaher, Ahmed M.
name: Hamada, Afaf M.
Publisher: name: figshare
Year: 2025
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Supplementary Material 1.
Supplementary Tables S1–S6 from Phylogenetic analyses of ray-finned fishes (Actinopterygii) using collagen type I protein sequences
Creators: name: Harvey, Virginia L.
name: Keating, Joseph N.
name: Buckley, Michael
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Supplementary tables including a full list of species and collagen (I) sequence information
title: Exode des clans
Creators: name: Ehrhart, Sabine
name: Rivierre, Jean-Claude
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2011
Subjects: subject: Bwatoo
subject: bwa

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
DiffTune-MPC: Closed-Loop Learning for Model Predictive Control
Creators: name: Tao, Ran
name: Cheng, Sheng
name: Wang, Xiaofeng
name: Wang, Shenlong
name: Hovakimyan, Naira
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Model predictive control (MPC) has been applied to many platforms in robotics and autonomous systems for its capability to predict a system's future behavior while incorporating constraints that a system may have. To enhance the performance of a system with an MPC controller, one can manually tune the MPC's cost function. However, it can be challenging due to the possibly high dimension of the parameter space as well as the potential difference between the open-loop cost function in MPC and the overall closed-loop performance metric function. This paper presents DiffTune-MPC, a novel learning method, to learn the cost function of an MPC in a closed-loop manner. The proposed framework is compatible with the scenario where the time interval for performance evaluation and MPC's planning horizon have different lengths. We show the auxiliary problem whose solution admits the analytical gradients of MPC and discuss its variations in different MPC settings, including nonlinear MPCs that are solved using sequential quadratic programming. Simulation results demonstrate the learning capability of DiffTune-MPC and the generalization capability of the learned MPC parameters.
description: The first two authors contributed equally to this work
Bisections of graphs
Creators: name: Choongbum  Lee
name: Po-Shen  Loh
name: Sudakov, Benny
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: A bisection of a graph is a bipartition of its vertex set in which the number of vertices in the two parts differ by at most 1, and its size is the number of edges which go across the two parts. In this paper, motivated by several questions and conjectures of Bollobás and Scott, we study maximum bisections of graphs. First, we extend the classical Edwards bound on maximum cuts to bisections. A simple corollary of our result implies that every graph on n vertices and m  edges with no isolated vertices, and maximum degree at mostn/3+1, admits a bisection of size at least m/2+n/6. Then using the tools that we developed to extend Edwardsʼs bound, we prove a judicious bisection result which states that graphs with large minimum degree have a bisection in which both parts span relatively few edges. A special case of this general theorem answers a conjecture of Bollobás and Scott, and shows that every graph on n vertices and m  edges of minimum degree at least 2 admits a bisection in which the number of edges in each part is at most(1/3+o(1))m. We also present several other results on bisections of graphs.
Modeling grain boundaries in solids using a combined nonlinear and geometrical method
Creators: name: Boyer, Denis
name: Romeu, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The complex arrangements of atoms near grain boundaries are difficult to understand theoretically. We propose a phenomenological (Ginzburg-Landau-like) description of crystalline phases based on symmetries and fairly general stability arguments. This method allows a very detailed description of defects at the lattice scale with virtually no tunning parameters, unlike usual phase-field methods. The model equations are directly inspired from those used in a very different physical context, namely, the formation of periodic patterns in systems out-of-equilibrium ({\it e.g.} Rayleigh-Bénard convection, Turing patterns). We apply the formalism to the study of symmetric tilt boundaries. Our results are in quantitative agreement with those predicted by a recent crystallographic theory of grain boundaries based on a geometrical quasicrystal-like construction. These results suggest that frustration and competition effects near defects in crystalline arrangements have some universal features, of interest in solids or other periodic phases.
description: 10 pages, 3 figures
Data science for assessing possible tax income manipulation: The case of Italy
Creators: name: Ausloos, Marcel
name: Cerqueti, Roy
name: Mir, Tariq A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: 91B80, 62P20

description: This paper explores a real-world fundamental theme under a data science perspective. It specifically discusses whether fraud or manipulation can be observed in and from municipality income tax size distributions, through their aggregation from citizen fiscal reports. The study case pertains to official data obtained from the Italian Ministry of Economics and Finance over the period 2007-2011. All Italian (20) regions are considered. The considered data science approach concretizes in the adoption of the Benford first digit law as quantitative tool. Marked disparities are found, - for several regions, leading to unexpected "conclusions". The most eye browsing regions are not the expected ones according to classical imagination about Italy financial shadow matters.
description: 38 pages, 22 figures. To be published in Chaos, Solitons and Fractals
Sediment provenance and delivery in the late Paleozoic Alleghanian-Ouachita-Marathon foreland mixed systems
Creators: name: Liu, Li
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Provenance
Sediment delivery
Mixed system

description: The continental-continental collision of Gondwana and Laurentia during the Paleozoic produced a tectonic transition from a rift to a foreland system. Late Paleozoic foreland basins, characterized by mixed carbonate and siliciclastic deposits along the Alleghanian-Ouachita-Marathon orogenic belts, became hydrocarbon-rich basins. Understanding the provenance and sediment delivery of those basins provided insights in both frontier basin exploration and mature basin exploitation. In this study, provenance and sediment-delivery studies were conducted in the Appalachian Foreland Basin, Black Warrior Basin, Fort Worth Bain, Bravo Dome, and most importantly, the Permian Basin. Detrital zircon data in syn-orogenic clastic wedges of Alleghanian-Ouachita-Marathon foreland show that for similar Grenvillian detrital zircon core ages, rims in the Appalachian foreland basin mainly have ages of 350 to 490 million years (Ma), whereas rims in Texas basins have ages of 500 to 750 Ma. This result resolves the ambiguity of regarding similar U-Pb ages of different basement and has implications for recycling and paleo-drainage reconstruction. Detailed investigation of provenance in lower Permian sediment of Permian Basin and Bravo Dome reveals that sediments were mainly derived from basement in peri-Gondwana and Gondwana terranes in Mexico and Central America. Sediments were directly derived from Ouachita orogenic belt and delivered by both short-distance axial and transverse drainage systems. Based on core and rim age assemblages, it is inferred that the transcontinental fluvial system with headwater from Appalachians did not reach as far as Texas basins during Wolfcampian time. Leonardian sediment were delivered with northwest direction by fluvial system originated from Ouachita-Marathon orogen and then recycled from Texas Panhandle and eastern New Mexico southward by eolian processes in the terrestrial setting. Leonardian siliciclastic-rich large-scale basin floor fans formed important unconventional reservoirs dominated by channel-level and lobe complexes in the Permian Basin. Shelf-incising submarine canyons are the primary shelf-to-basin delivery system that provided basinal sand. Realizing the important of canyon-fed systems in this hydrocarbon-rich basin will have significant impact on sediment-flux estimation and global source-to-sink studies of mixed systems
Fully-automated optimization of grating couplers
Creators: name: Su, Logan
name: Trivedi, Rahul
name: Sapra, Neil V.
name: Piggott, Alexander Y.
name: Vercruysse, Dries
name: Vučković, Jelena
Publisher: name: arXiv
Year: 2017
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a gradient-based algorithm to design general 1D grating couplers without any human input from start to finish, including a choice of initial condition. We show that we can reliably design efficient couplers to have multiple functionalities in different geometries, including conventional couplers for single-polarization and single-wavelength operation, polarization-insensitive couplers, and wavelength-demultiplexing couplers. In particular, we design a fiber-to-chip blazed grating with under 0.2 dB insertion loss that requires a single etch to fabricate and no back-reflector.
description: 8 pages, 7 figures