cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurements of gluon-gluon fusion and vector-boson fusion Higgs boson production cross-sections in the $H \to WW^{\ast} \to eνμν$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Higgs boson production cross-sections in proton-proton collisions are measured in the $H \to WW^{\ast} \to eνμν$ decay channel. The proton-proton collision data were produced at the Large Hadron Collider at a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector in 2015 and 2016, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The product of the $H \to WW^{\ast}$ branching fraction times the gluon-gluon fusion and vector-boson fusion cross-sections are measured to be $11.4 ^{+1.2}_{-1.1} (\mathrm{stat.}) ^{+1.8}_{-1.7}(\mathrm{syst.})$ $\mathrm{pb}$ and $0.50 ^{+0.24}_{-0.22} (\mathrm{stat.}) \pm 0.17(\mathrm{syst.})$ $\mathrm{pb}$, respectively, in agreement with the Standard Model predictions.
description: 37 pages in total, author list starting page 21, 9 figures, 6 tables, submitted to Phys. Lett. B., all figures including auxiliary figures are available at: https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-07/
MATHICSE Technical Report : Solving rank structured Sylvester and Lyapunov equations
Creators: name: Massei, Stefano
name: Palitta, Davide
name: Robol, Leonardo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We consider the problem of efficiently solving Sylvester and Lyapunov equations of medium and large scale, in case of rank-structured data, i.e., when the coefficient matrices and the right-hand side have low-rank off- diagonal blocks. This comprises problems with banded data, recently studied in [22, 32], which often arise in the discretization of elliptic PDEs. We show that, under suitable assumptions, the quasiseparable structure is guaranteed to be numerically present in the solution, and explicit novel estimates of the numerical rank of the off-diagonal blocks are provided. Efficient solution schemes that rely on the technology of hierarchical matrices are described, and several numerical experiments confirm the applicability and efficiency of the approaches. We develop a MATLAB toolbox that allows easy replication of the experiments and a ready-to-use interface for the solvers. The performances of the different approaches are compared, and we show that the new methods described are efficient on several classes of relevant problems.
On Vanishing Two Loop Cosmological Constants in Nonsupersymmetric Strings
Creators: name: Kachru, Shamit
name: Silverstein, Eva
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has recently been suggested that in certain special nonsupersymmetric type II string compactifications, at least the first two perturbative contributions to the cosmological constant $Λ$ vanish. Support for perturbative vanishing beyond 1-loop (as well as evidence for the absence of some nonperturbative contributions) has come from duality arguments. There was also a direct 2-loop computation which was incomplete; in this note we explain the deficiency of the previous 2-loop calculation and discuss the complete 2-loop computation in two different models. The corrected analysis yields a vanishing 2-loop contribution to $Λ$ in these models.
description: 16 pages, harvmac big
MATHICSE Technical Report : Low-rank updates and a divideand- conquer method for linear matrix equations
Creators: name: Kressner, Daniel
name: Massei, Stefano
name: Robol, Leonardo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Linear matrix equations, such as the Sylvester and Lyapunov equations, play an important role in various applications, including the stability analysis and dimensionality reduction of linear dynamical control systems and the solution of partial differential equations. In this work, we present and analyze a new algorithm, based on tensorized Krylov subspaces, for quickly updating the solution of such a matrix equation when its coefficients undergo low-rank changes. We demonstrate how our algorithm can be utilized to accelerate the Newton method for solving continuous-time algebraic Riccati equations. Our algorithm also forms the basis of a new divide-and-conquer approach for linear matrix equations with coefficients that feature hierarchical low-rank structure, such as HODLR, HSS, and banded matrices. Numerical experiments demonstrate the advantages of divide-and-conquer over existing approaches, in terms of computational time and memory consumption.
MATHICSE Technical Report : Fast QR decomposition of HODLR matrices
Creators: name: Kressner, Daniel
name: Susnjara, Ana
Publisher: name: Écublens, MATHICSE
Year: 2019

description: The efficient and accurate QR decomposition for matrices with hierarchical low-rank structures, such as HODLR and hierarchical matrices, has been challenging. Existing structure-exploiting algorithms are prone to numerical instability as they proceed indi- rectly, via Cholesky decompositions or a block Gram-Schmidt procedure. For a highly ill-conditioned matrix, such approaches either break down in finite-precision arithmetic or result in significant loss of orthogonality. Although these issues can sometimes be addressed by regularization and iterative refinement, it would be more desirable to have an algorithm that avoids these detours and is numerically robust to ill-conditioning. In this work, we propose such an algorithm for HODLR matrices. It achieves accuracy by utilizing House- holder reflectors. It achieves efficiency by utilizing fast operations in the HODLR format in combination with compact WY representations and the recursive QR decomposition by Elmroth and Gustavson. Numerical experiments demonstrate that our newly proposed al- gorithm is robust to ill-conditioning and capable of achieving numerical orthogonality down to the level of roundoff error.
Additional file 1: of GRam stain-guided Antibiotics ChoicE for Ventilator-Associated Pneumonia (GRACE-VAP) trial: rationale and study protocol for a randomised controlled trial
Creators: name: Yoshimura, Jumpei
name: Yamakawa, Kazuma
name: Kinoshita, Takahiro
name: Ohta, Yoshinori
name: Morimoto, Takeshi
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: SPIRIT checklist. (DOC 121 kb)
MATHICSE Technical Report : A fast spectral divide-and-conquer method for banded matrices
Creators: name: Susnjara, Ana
name: Kressner, Daniel
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Based on the spectral divide-and-conquer algorithm by Nakatsukasa and Higham [SIAM J. Sci. Comput., 35(3):A1325{A1349, 2013], we propose a new algorithm for computing all the eigenvalues and eigenvectors of a symmetric banded matrix. For this purpose, we combine our previous work on the fast computation of spectral projectors in the so called HODLR format, with a novel technique for extracting a basis for the range of such a HODLR matrix. The numerical experiments demonstrate that our algorithm exhibits quasilinear complexity and allows for conveniently dealing with large-scale matrices.
The Polarizations of Gravitational Waves
Creators: name: Gong, Yungui
name: Hou, Shaoqi
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The direct detection of gravitational waves by LIGO/Virgo opened the possibility to test General Relativity and its alternatives in the high speed, strong field regime. Alternative theories of gravity generally predict more polarizations than General Relativity, so it is important to study the polarization contents of theories of gravity to reveal the nature of gravity. In this talk, we analyzed the polarizations contents of Horndeski theory and $f(R)$ gravity. We found out that in addition to the familiar plus and cross polarizations, a \emph{massless} Horndeski theory predicts an extra transverse polarization, and there is a mix of the pure longitudinal and transverse breathing polarizations in the \emph{massive} Horndeski theory and $f(R)$ gravity. It is possible to use pulsar timing arrays to detect the extra polarizations in these theories. We also pointed out that the classification of polarizations using Newman-Penrose variables cannot be applied to the massive modes. It cannot be used to classify polarizations in Einstein-æther theory or generalized TeVeS theory, either.
description: 20 pages, 4 figures, a talk given in International Conference on Quantum Gravity held in SUSTech, Shenzhen, China
MATHICSE Technical Report : Multi space reduced basis preconditioners for parametrized Stokes equations
Creators: name: Dal Santo, Niccolò
name: Deparis, Simone
name: Manzoni, Andrea
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: In this work we introduce a two-level preconditioner for the efficient solution of large scale saddlepoint linear systems arising from the finite element (FE) discretization of parametrized Stokes equations.The proposed preconditioner extends the Multi Space Reduced Basis (MSRB) preconditioning methodproposed in [12], and relies on the combination of an approximated block (fine grid) preconditioner witha reduced basis solver, which plays the role of coarse component. A sequence of RB spaces, constructedeither with an enriched velocity formulation or a Petrov-Galerkin projection, is built. As a matter offact, each RB coarse component is tailored to perform a single iteration of the iterative method at hand.The exible GMRES (FGMRES) algorithm is employed to solve the resulting preconditioned systemand targets small tolerances with a very small iteration count and in a very short time. Numerical testcases dealing with Stokes flows in three dimensional parameter-ependent geometries are consideredto assess the numerical performance of the proposed technique in different large scale computationalsettings. A detailed comparison with both the current state of the art of i) standard RB methodsand ii) preconditioning techniques for Stokes equations highlights the better efficiency of the proposedmethodology.
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 181 (11 H 754), 165 folios, f. 0175
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0175, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 181 (11 H 754), 165 folios, f. 0175, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
The D8-Brane Tied up: String and Brane Solutions in Massive Type IIA Supergravity
Creators: name: Janssen, Bert
name: Meessen, Patrick
name: Ortin, Tomas
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present two new solutions of Romans' massive type IIA supergravity characterized by the two non-trivial massive potentials of Romans' theory: the NSNS 2-form and the RR 7-form. They can be interpreted respectively as the intersection of a fundamental string and a D8-brane over a D0-brane and the intersection of a D6-brane with a D8-brane over a NSNS5-brane. The D8-brane manifests itself through the mass parameter and in the massless limit one recovers the standard fundamental string and D6-brane solutions. Although these solutions do not have the usual form for BPS bound states at threshold and each of them involves 3 objects, both of them preserve 1/4 of the supersymmetries.
description: LaTeX2e file, 10 pages
MATHICSE Technical Report : Fast solvers for 2D fractional differential equations using rank structured matrices
Creators: name: Massei, Stefano
name: Mazza, Marco
name: Robol, Leonardo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We consider the discretization of time-space diffusion equations with fractional derivatives in space and either 1D or 2D spatial domains. The use of implicit Euler scheme in time and finite differences or finite elements in space, leads to a sequence of dense large scale linear systems describing the behavior of the solution over a time interval. We prove that the coefficient matrices arising in the 1D context are rank structured and can be efficiently represented using hierarchical formats (H-matrices, HODLR). Quantitative estimates for the rank of the off-diagonal blocks of these matrices are presented. We analyze the use of HODLR arithmetic for solving the 1D case and we compare this strategy with existing methods that exploit the Toeplitz-like structure to precondition the GMRES iteration. The numerical tests demonstrate the convenience of the HODLR format when at least a reasonably low number of time steps is needed. Finally, we explain how these properties can be leveraged to design fast solvers for problems with 2D spatial domains that can be reformulated as matrix equations. The experiments show that the approach based on the
On the behavior of random RNA secondary structures near the glass transition
Creators: name: Baez, William D.
name: Wiese, Kay Jörg
name: Bundschuh, Ralf
Publisher: name: arXiv
Year: 2018
Subjects: subject: Biomolecules (q-bio.BM)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: RNA forms elaborate secondary structures through intramolecular base pairing. These structures perform critical biological functions within each cell. Due to the availability of a polynomial algorithm to calculate the partition function over these structures, they are also a suitable system for the statistical physics of disordered systems. In this model, below the denaturation temperature, random RNA secondary structures exist in one of two phases: a strongly disordered, low-temperature glass phase, and a weakly disordered, high-temperature molten phase. The probability of two bases to pair decays with their distance with an exponent 3/2 in the molten phase, and about 4/3 in the glass phase. Inspired by previous results from a renormalized field theory of the glass transition separating the two phases, we numerically study this transition. We introduce distinct order parameters for each phase, that both vanish at the critical point. We finally explore the driving mechanism behind this transition.
Additional file 1: of Additive effect of bFGF and selenium on expansion and paracrine action of human amniotic fluid-derived mesenchymal stem cells
Creators: name: Junghyun Park
name: Lee, Jung Han
name: Yoon, Byung
name: Jun, Eun Kyoung
name: Gilju Lee
name: Kim, In Yong
name: Seungkwon You
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Primer sequences used in reverse-transcription PCR and real-time PCR. (PDF 118 kb)
Formation of the First Black Holes: Current observational status
Creators: name: Schleicher, Dominik R. G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this chapter, we review the current observational status of the first supermassive black holes. It is clear that such a review can hardly be complete, due to the wealth of surveys that has been pursued, including different wavelengths and different observational techniques. This chapter will focus on the main results that have been obtained, considering the detections of z~6 supermassive black holes in large surveys such as SDSS, CFHQS and Pan-STARRS. In addition, we will discuss upper limits and constraints on the population of the first black holes that can be derived from observational data, in particular in the X-ray regime, as these provide additional relevant information for the comparison with formation scenarios.
description: Preprint of the chapter "Current Observational Status", to be published in the review volume "Formation of the First Black Holes", Latif, M. and Schleicher, D.R.G., eds., World Scientific Publishing Company, 2018, pp 223-238 [see https://www.worldscientific.com/worldscibooks/10.1142/10652]. Updated based on received comments
MATHICSE Technical Report : Quasi-Toeplitz matrix arithmetic : a Matlab toolbox
Creators: name: Bini, Dario A.
name: Massei, Stefano
name: Robol, Leonardo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A Quasi Toeplitz (QT) matrix is a semi-infinite matrix of the kind $A = T(a) + E$ where$T(a) = (aj-i)_{i,j\in \mathbb{Z}_{+}}$, $E = (e_{i,j})_{i,j\in\mathbb{Z}_{+}}$ is compact and the norms $\| a\|_{\mathcal{W}} =\sum_{i\in\mathbb{Z}} |a|_j$ and $\|E\|_{2}$ are finite. These properties allow to approximate any QT-matrix, within any given precision,by means of a finite number of parameters.QT-matrices, equipped with the norm $\|A\|_{\mathcal{QT}} = \alpha\|a\|_{\mathcal{W}} + \|E\|_{2}, for $\alpha \geq (1 + \sqrt{5})/2$,are a Banach algebra with the standard arithmetic operations. We provide an algorithmicdescription of these operations on the finite parametrization of QT-matrices, and we developa MATLAB toolbox implementing them in a transparent way. The toolbox is then extended toperform arithmetic operations on matrices of finite size that have a Toeplitz plus low-rankstructure. This enables the development of algorithms for Toeplitz and quasi-Toeplitz matriceswhose cost does not necessarily increase with the dimension of the problem.Some examples of applications to computing matrix functions and to solving matrix equa-tions are presented, and confirm the effectiveness of the approach.
Holography in the Flat Space Limit
Creators: name: Susskind, Leonard
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Matrix theory and the AdS/CFT correspondence provide nonperturbative holographic formulations of string theory. In both cases the finite N theories can be thought of as infrared regulated versions of flat space string theory in which removing the cutoff is equivalent to letting N go to infinity. In this paper we consider the nature of this limit. In both cases the holographic mapping becomes completely nonlocal. In matrix theory this corresponds to the growth of D0-brane bound states with N. For the AdS/CFT correspondence there is a similar delocalization of the holographic image of a system as N increases. In this case the limiting theory seems to require a number of degrees of freedom comparable to large N matrix quantum mechanics.
title: ADCO, Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Cart. 23 (G 127), 310 folios, f. 00077
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2011
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Archives départementales de la Côte-d'Or, Cart. 23 (G 127), 310 folios, f. 00077, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Troisième cartulaire de Saint-Étienne de Dijon (XVIe), Archives départementales de la Côte-d'Or, Cart. 23 (G 127), 310 folios, f. 00077, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
MATHICSE Technical Report : A Bayesian numerical homogenization method for elliptic multiscale inverse problems
Creators: name: Abdulle, Assyr
name: Di Blasio, Andrea
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A new strategy based on numerical homogenization and Bayesian techniques for solvingmultiscale inverse problems is introduced. We consider a class of elliptic problems which vary ata microscopic scale, and we aim at recovering the highly oscillatory tensor from measurements ofthe fine scale solution at the boundary, using a coarse model based on numerical homogenizationand model order reduction. We provide a rigorous Bayesian formulation of the problem, takinginto account different possibilities for the choice of the prior measure. We prove well-posednessof the effective posterior measure and, by means of G-convergence, we establish a link betweenthe effective posterior and the fine scale model. Several numerical experiments illustrate theefficiency of the proposed scheme and confirm the theoretical findings.
Signature of Randall-Sundrum Quantum Gravity model in $γγ$ scattering in the TeV range
Creators: name: Choudhury, S. R.
name: Cornell, A. S.
name: Joshi, G. C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the implications of the Randall-Sundrum gravity models on $γγ$ scattering in the TeV range.
description: 7 pages, 4 figures
The Pooltable Analogy to Axion Physics
Creators: name: Sikivie, Pierre
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An imaginary character named TSP finds himself in a playroom whose floor is tilted to one side. However, the pooltable in the playroom is horizontal. TSP wonders how this can be. In doing so, he embarks upon an intellectual journey which parallels that which has been travelled during the past two decades by physicists interested in the Strong $CP$ Problem and axion physics.
description: 8 pages, plain TEX, 4 figures in a separate uuencoded postcript file; based upon a talk at the XXXth Rencontres de Moriond 'Dark Matter in Cosmology' and 'Clocks and Tests of Fundamental Laws', Villars-sur-Ollon, Switzerland, Sept. 21-28, 1995
STRATIGRAPHIC POLLEN ANALYSIS OF SAMPLES FROM BULL CREEK NORTH (34BV181), OKLAHOMA
Creators: name: Cummings, Linda Scott
name: R.A. Varney
Year: 2006
Subjects: subject: Beaver County (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/1166/beaver-county-county
subject: Bull Creek
valueUri: https://core.tdar.org/browse/geographic-keyword/19619/bull-creek
subject: Oklahoma (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/330/oklahoma-state-territory
subject: Bull Creek North
valueUri: https://core.tdar.org/browse/site-name/4861/bull-creek-north
subject: 34BV181
valueUri: https://core.tdar.org/browse/site-name/108253/34bv181
subject: Pollen
valueUri: https://core.tdar.org/browse/material-type/13/pollen
subject: 06-034
valueUri: https://core.tdar.org/browse/other-keyword/162125/06-034
subject: Stratigraphic Samples
valueUri: https://core.tdar.org/browse/other-keyword/135768/stratigraphic-samples
subject: Pollen Analysis
valueUri: https://core.tdar.org/browse/other-keyword/3351/pollen-analysis
subject: Stratigraphic Pollen Analysis
valueUri: https://core.tdar.org/browse/other-keyword/135961/stratigraphic-pollen-analysis
subject: 06-34
valueUri: https://core.tdar.org/browse/other-keyword/162122/06-34
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation

description: The Bull Creek North Site (34BV181) is located within 1 mile of the Bull Creek Site (34BV176). Thirty-four stratigraphic samples were examined for pollen from the Bull Creek site (Varney and Cummings 2004). Ten samples collected stratigraphically from Bull Creek North (34BV181) were examined for pollen. A radiocarbon age of 12300 ± 80 BP anchors the middle of the record in a clay loam stratum.
Open Strings in a B-field Background as Electric Dipoles
Creators: name: Sheikh-Jabbari, M. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Studying dynamics of open strings attached to a D2-brane in a NS two form field background, we find that these open strings act as dipoles of U(1) gauge field of the brane. This provides an string theoretic description of the flux modifications needed for the DBI action on noncommutative torus.
description: 9 pages, Latex File
Impact of chemical potential on the reflectance of graphene in the infrared and microwave domains
Creators: name: Klimchitskaya, G. L.
name: Mostepanenko, V. M.
name: Petrov, V. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The reflectance of graphene is investigated in the framework of the Dirac model with account of its realistic properties, such as nonzero chemical potential and band gap, at any temperature. For this purpose, the exact reflection coefficients of the electromagnetic waves on a graphene sheet expressed via the polarization tensor and ultimately via the electrical conductivity of graphene have been used. The reflectance of graphene is computed as a function of frequency and chemical potential at different temperatures and values of the band-gap parameter. The minimum values of the reflectance are found which are reached in the infrared domain at the points of vanishing imaginary part of the conductivity of graphene. For a gapped graphene, the maximum reflectance equal to unity is reached at the points where the imaginary part of conductivity diverges. The computational results demonstrate an interesting interplay between the band gap and chemical potential in their combined effect on the reflectance. Specifically, there are wide frequency intervals where the reflectance of graphene increases with increasing chemical potential and decreasing band gap. The numerical computations are found to be in good agreement with the analytic asymptotic expressions in the regions of their applicability. Several technological areas, where the obtained results could be used, are listed.
description: 19 pages, 8 figures; 3 typos are corrected
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 321
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
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: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 321, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 321, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Neveu-Schwarz Five-Branes at Orbifold Singularities and Holography
Creators: name: Diaconescu, Duiliu-Emanuel
name: Gomis, Jaume
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider Type IIB Neveu-Schwarz five-branes transverse to C^2/Z_n orbifolds and conjecture that string theory on the near horizon geometry is dual to the decoupled theory on the branes. We analyze the conformal field theory describing the near horizon region and the world volume non-critical string theory. The modular invariance consistency condition of string theory is exactly reproduced as the gauge anomaly cancellation condition in the little string theories. We comment on aspects of the holographic nature of this duality.
description: 20 pages, harvmac. Modified description of the world-sheet CFT as explained in note added. Operator matching extended to arbitrary n. References and acknowledgment added
Prevention and Early Detection (Implementation Research) cluster brochure
Creators: name: PREVENT Consortium
name: Co-CAPTAIN Consortium
name: Cancer Prevention at Work (CPW) Consortium
name: ONCODIR Consortium
name: 4P-CAN Consortium
name: PIECES Consortium
Publisher: name: Zenodo
Year: 2024

description: This brochure presents the objectives and collaborative efforts of the Prevention and Early Detection (Implementation Research) Cluster, a group of six projects funded by the EU Mission on Cancer under Horizon Europe. The cluster focuses on primary cancer prevention and early detection through research, policy recommendations, and digital innovations.
SU(2) Skyrme Vortices
Creators: name: Rybakov, Yu. P.
name: Tarabay, A. M.
name: Chugunov, I. G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A regular method for constructing vortex-like solutions with cylindrical symmetry to the equations of the SU(2) Skyrme chiral model is proposed. A numerical estimate for the length density of mass is given.
Coexistence of spin-1 fermion and Dirac fermion on the triangular kagome lattice
Creators: name: Wang, Luyang
name: Yao, Dao-Xin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quasiparticle excitations beyond Dirac-Weyl-Majorana classification can appear in lattice systems due to the less symmetry constraint compared with Poincaré symmetry in high energy physics. In particular, fermions with an integer spin can appear in a variety of lattices. Here, we show that two-dimensional spin-1 fermion may coexist with Dirac fermions in the triangular kagome lattice (TKL). We derive a four-band effective model that hosts both types of fermions. The effective model can be used to study the interplay between spin-1 and spin-1/2 fermions. As an example, using this model we show that spin-nonconserving Klein tunneling can occur in the TKL, which has the transmission coefficient $T=1$ for normal incidence. Our findings pave a way to the study of the interaction and interplay between different types of fermions in lattice systems.
description: 5 pages, 5 figures
Supplementary document for Polarization-Sensitive, Self-Powered Photodetector Based on SnO2/MoS2 van der Waals Heterojunction - 7366764.pdf
Creators: name: xu, Tong
name: Wei, Yun
name: Tang, Kai
name: Sha, Shulin
name: Wan, Peng
name: Shi, Daning
name: Jiang, Mingming
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Additional file 6: of Dissection of the molecular bases of genotype x environment interactions: a study of phenotypic plasticity of Saccharomyces cerevisiae in grape juices
Creators: name: Peltier, Emilien
name: Sharma, Vikas
name: Raga, Maria MartĂ­
name: Roncoroni, Miguel
name: Bernard, Margaux
name: Jiranek, Vladimir
name: Gibon, Yves
name: Marullo, Philippe
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Figure S2. Clustering of Norm of reaction for each trait. Norm of reaction of each individual is shown in dotted line and are colored and faceted according their cluster. Solid line shown the average norm of reaction of each cluster. Number of strains within each cluster is indicated by n. (PDF 2768 kb)
A comprehensive search for extragalactic 6.7-GHz methanol masers
Creators: name: Phillips, C. J.
name: Norris, R. P.
name: Ellingsen, S. P.
name: Rayner, D. P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Australia Telescope Compact Array (ATCA) to search for 6.7-GHz methanol maser emission towards 87 galaxies. We chose the target sources using several criteria, including far-IR luminosities and the presence of known OH megamasers. In addition, we searched for methanol masers in the nearby starburst galaxy NGC 253, making a full spectral-line synthesis image. No emission was detected in any galaxies, with detection limits ranging from 25 mJy to 75 mJy. This is surprising, given the close association of OH and methanol masers in Galactic star-formation regions, and significantly constrains models of OH megamaser emission. This absence of maser emission may be a result of low methanol abundances in molecular clouds in starburst galaxies.
description: 7 Pages, no figures, Accepted for publication in MNRAS
MATHICSE Technical Report : A local discontinuous Galerkin gradient discretization method for linear and quasilinear elliptic equations
Creators: name: Abdulle, Assyr
name: Rosilho De Souza, Giacomo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A local weighted discontinuous Galerkin gradient discretization method for solving ellipticequations is introduced. The local scheme is based on a coarse grid and successively improvesthe solution solving a sequence of local elliptic problems in high gradient regions. Using thegradient discretization framework we prove convergence of the scheme for linear and quasilinearequations under minimal regularity assumptions. The error due to artificial boundary conditionsis also analyzed, shown to be of higher order and shown to depend only locally on the regularityof the solution. Numerical experiments illustrate our theoretical findings and the local method’saccuracy is compared against the non local approach.
NEW CORRECTIONS OF ORDER $α^3(Zα)^4$ AND $α^2(Zα)^6$ TO THE LAMB SHIFT
Creators: name: Eides, Michael I.
name: Grotch, Howard
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Two corrections to the Lamb shift, induced by the polarization operator insertions in the external photon lines are calculated.
description: 4 pages, revtex, no figures
MATHICSE Technical Report : Random time step probabilistic methods for uncertainty quantification in chaotic and geometric numerical integration
Creators: name: Abdulle, Assyr
name: Garegnani, Giacomo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A novel probabilistic numerical method for quantifying the uncertainty induced by the time integration of ordinary differential equations (ODEs) is introduced. Departing from the classical strategy to randomize ODE solvers by adding a random forcing term, we show that a probability measure over the numerical solution of ODEs can be obtained by introducing suitable random time-steps in a classical time integrator. This intrinsic randomization allows for the conservation of geometric properties of the underlying deterministic integrator such as mass conservation, conservation of first integrals, symplecticity and conservation of Hamiltonians over long time. Weak and mean-square convergence analysis are derived. We also analyse the convergence of the Monte Carlo estimator for the proposed random time step method and show that the measure obtained with repeated sampling converges in mean-square sense independently of the number of samples. Numerical examples including chaotic Hamiltonian systems, chemical reactions and Bayesian inferential problems illustrate the accuracy, robustness and versatility of our probabilistic numerical method.
MATHICSE Technical Report : Dimensionality reduction of parameter-dependent problems through proper orthogonal decomposition
Creators: name: Manzoni, Andrea
name: Negri, Federico
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: The numerical solution of partial differential equations (PDEs) depending on para- metrized or random input data is computationally intensive. Reduced order modeling techniques, such as the reduced basis methods, have been developed to alleviate this computational burden, and are nowadays exploited to accelerate real-time analysis, as well as the solution of PDE-constrained optimization and inverse problems. These methods are built upon low-dimensional spaces obtained by selecting a set of snap- shots from a parametrically induced manifold. However, for these techniques to be effective, both parameter-dependent and random input data must be expressed in a convenient form. To address the former case, the empirical interpolation method has been developed. In the latter case, a spectral approximation of stochastic fields is often generated by means of a Karhunen-Loève expansion. In all these cases, a low dimensional space to represent the function being approximated (PDE solution, parametrized data, stochastic field) can be obtained through proper orthogonal de- composition. Here, we review possible ways to exploit this methodology in these three contexts, we recall its optimality properties, and highlight the common mathematical structure beneath.
Supplementary document for Ultrasensitive dynamic ultraviolet imaging based on Ga2O3 photodetector array - 7352903.pdf
Creators: name: chen, Tiwei
name: Liu, Nan
name: Cheng, Suzhen
name: Zhang, Xiaodong
name: Ding, Peng
name: Zeng, Chunhong
name: Zhang, Li
name: Guo, Gaofu
name: Yang, An
name: Hu, Yu
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Photonics, Optoelectronics and Optical Communications

description: Additional tests on the materials and devices, including spectral response, CL, and surface images from array microscopy, are provided. The ultraviolet imaging test system and testing environment are also demonstrated.
MATHICSE Technical Report : Isogeometric analysis and proper orthogonal decomposition for the acoustic wave equation
Creators: name: Zhu, Shengfeng
name: Dede', Luca
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Isogeometric Analysis (IGA) is used in combination with proper orthogonal decomposition (POD) for model order reduction of the time parameterized acoustic wave equations. We propose a fully discrete IGA-Newmark-POD approximation and we analyze the associated numerical error, which features three components due to spatial discretization by IGA, time discretization with the Newmark scheme, and modes truncation by POD. We prove stability and convergence. Numerical examples are presented to show the accuracy and eeffciency of IGA-based POD techniques for the model order reduction of the acoustic wave equation.
MATHICSE Technical Report : Using separable non-negative matrix factorization techniques for the analysis of time-resolved Raman spectra
Creators: name: Luce, Robert
name: Hildebrandt, Peter
name: Kuhlmann, Uwe
name: Liesen, Jörg
Publisher: name: Écublens, MATHICSE
Year: 2019

description: The key challenge of time-resolved Raman spectroscopy is the identification of the constituent species and the analysis of the kinetics of the underlying reaction network. In this work we present an integral approach that allows for determining both the component spectra and the rate constants simultaneously from a series of vibrational spectra. It is based on an algorithm for non-negative matrix factorization which is applied to the experimental data set following a few pre-processing steps. As a prerequisite for physically unambiguous solutions, each component spectrum must include one vibrational band that does not significantly interfere with vibrational bands of other species. The approach is applied to synthetic “experimental” spectra derived from model systems comprising a set of species with component spectra differing with respect to their degree of spectral interferences and signal-to-noise ratios. In each case, the species involved are connected via monomolecular reaction pathways. The potential and limitations of the approach for recovering the respective rate constants and component spectra are discussed.
MATHICSE Technical Report : Effective models for the multidimensional wave equation in heterogeneous media over long time and numerical homogenization
Creators: name: Abdulle, Assyr
name: Pouchon, Timothée Noé
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A family of effective equations that capture the long time dispersive effects of wave propagation in heterogeneous media in an arbitrary large periodic spatial domain $\Omega \subset \mathbb{R}^d$ over long time is proposed and analyzed. For a wave equation with highly oscillatory periodic spatial tensors of characteristic length $\varepsilon$, we prove that the solution of any member of our family of effective equations are $\varepsilon$-close in the $L^\infty (0; T^\varepsilon; L2(\Omega))$ norm to the true oscillatory wave over a time interval of length $T^\varepsilon = O(\varepsilon^2)$.We show that the previously derived effective equation in [Dohnal, Lamacz, Schweizer, Multiscale Model. Simul., 2014] belongs to our family of effective equation. Moreover, while Bloch waves techniques were previously used, we show that asymptotic expansion techniques give an alternative way to derive such effective equations. An algorithm to compute the tensors involved in the dispersive equation and allowing for efficient numerical homogenization methods over long time is proposed.
Molière Scattering in Quark-Gluon Plasma: Finding Point-Like Scatterers in a Liquid
Creators: name: D'Eramo, Francesco
name: Rajagopal, Krishna
name: Yin, Yi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By finding rare (but not exponentially rare) large-angle deflections of partons within a jet produced in a heavy ion collision, or of such a jet itself, experimentalists can find the weakly coupled short-distance quark and gluon particles (scatterers) within the strongly coupled liquid quark-gluon plasma (QGP) produced in heavy ion collisions. This is the closest one can come to probing QGP via a scattering experiment and ultimately learning how a strongly coupled liquid emerges from an asymptotically free gauge theory. The short-distance, particulate, structure of liquid QGP can be revealed in events in which a jet parton resolves, and scatters off, a parton from the droplet of QGP. The probability for picking up significant transverse momentum via a single scattering was calculated previously, but only in the limit of infinite parton energy which means zero angle scattering. Here, we provide a leading order perturbative QCD calculation of the Molière scattering probability for incident partons with finite energy, scattering at a large angle. We set up a thought experiment in which an incident parton with a finite energy scatters off a parton constituent within a "brick" of QGP, which we treat as if it were weakly coupled, as appropriate for scattering with large momentum transfer, and compute the probability for a parton to show up at a nonzero angle with some energy. We include all relevant channels, including those in which the parton that shows up at a large angle was kicked out of the medium as well as the Rutherford-like channel in which what is seen is the scattered incident parton. The results that we obtain will serve as inputs to future jet Monte Carlo calculations and can provide qualitative guidance for how to use future precise, high statistics, suitably differential measurements of jet modification in heavy ion collisions to find the scatterers within the QGP liquid.
description: 51 pages, 6 figures. Matched to the version accepted by JHEP
MATHICSE Technical Report : Integrated Heart – Coupling multiscale and multiphysics models for the simulation of the cardiac function
Creators: name: Quarteroni, Alfio
name: Lassila, Toni Mikael
name: Rossi, Simone
name: Ruiz Baier, Ricardo
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Mathematical modelling of the human heart and its function can expand our understanding of various cardiac diseases, which remain the most common cause of death in the developed world. Like other physiological systems, the heart can be understood as a complex multiscale system involving interacting phenomena at the molecular, cellular, tissue, and organ levels. This article addresses the numerical modelling of many aspects of heart function, including the interaction of the cardiac electrophysiology system with contractile muscle tissue, the sub-cellular activation-contraction mechanisms, as well as the haemodynamics inside the heart chambers. Resolution of each of these sub-systems requires separate mathematical analysis and specially developed numerical algorithms, which we review in detail. By using specific sub-systems as examples, we also look at systemic stability, and explain for example how physiological concepts such as microscopic force generation in cardiac muscle cells, translate to coupled systems of differential equations, and how their stability properties influence the choice of numerical coupling algorithms. Several numerical examples illustrate three fundamental challenges of developing multiphysics and multiscale numerical models for simulating heart function, namely: (i) the correct upscaling from single-cell models to the entire cardiac muscle, (ii) the proper coupling of electrophysiology and tissue mechanics to simulate electromechanical feedback, and (iii) the stable simulation of ventricular haemodynamics during rapid valve opening and closure.