cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quark matter under rotation in the NJL model with vector interaction
Creators: name: Wang, Xinyang
name: Wei, Minghua
name: Li, Zhibin
name: Huang, Mei
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the chiral phase transition of quark matter under rotation in two-flavor Nambu--Jona-Lasinio (NJL) model. It is found that, in the rotating frame, the angular velocity plays the similar role as the baryon chemical potential and suppresses the chiral condensate, thus the chiral phase transition shows a critical end point not only in the temperature-chemical potential $T-μ$ plane, but also in the temperature-angular momentum $T-ω$ plane. One interesting observation is that in the $T-μ$ plane, the presence of the angular momentum only shifts down the critical temperature $T^E$ of the CEP and does not shift the critical chemical potential $μ^E$, and in the $T-ω$ plane, the increase of the chemical potential only shift down the critical temperature $T^E$ and does not change the critical angular momentum $ω^E$. The phase structure in the $T-μ$ plane is sensitive to the coupling strength in the vector channel, while the phase structure in $T-ω$ plane is not. It is also observed that the rotating angular velocity suppresses the kurtosis of the baryon number fluctuations, while it enhances the pressure density, energy density, the specific heat and the sound velocity.
MATHICSE Technical Report: Time domain room acoustic simulations using a spectral element method
Creators: name: Pind, Finnur
name: Engsig-Karup, Allan P.
name: Jeong, Cheol-Ho
name: Hesthaven, Jan S.
name: Meiling, Mikael S.
name: Stromann-Andersen, Jakob
Publisher: name: Écublens, MATHICSE
Year: 2019

description: This paper presents a wave-based numerical scheme based on a spectral element method, coupled with an implicit-explicit Runge-Kutta time stepping method, for simulating room acoustics in the time domain. The scheme has certain features which make it highly attractive for room acoustic simulations, namely a) its low dispersion and dissipation properties due to a high-order spatio-temporal discretization, b) a high degree of geometric flexibility, where adaptive, unstructured meshes with curvilinear mesh elements are supported and c) its suitability for parallel implementation on modern many-core computer hardware. A method for modelling locally reacting, frequency dependent impedance boundary conditions within the scheme is developed, in which the boundary impedance is mapped to a multipole rational function and formulated in differential form. Various numerical experiments are presented, which reveal the accuracy and cost-eciency of the proposed numerical scheme.
A Generalized Approach to Impedance Control Design for Robotic Minimally Invasive Surgery
Creators: name: Larby, Daniel
name: Forni, Fulvio
Publisher: name: Apollo - University of Cambridge Repository
Year: 2023

description: Energy based control methods are at the core of modern robotic control algorithms. In this paper we present a general approach to virtual model/mechanism control, which is a powerful design tool to create energy based controllers. We present two novel virtual-mechanisms designed for robotic minimally invasive surgery, which control the position of a surgical instrument while passing through an incision. To these virtual mechanisms we apply the parameter tuning method of Larby and Forni (2022), which optimizes for local performance while ensuring global stability.
MATHICSE Technical Report: Constraint-Aware Neural Networks for Riemann Problems
Creators: name: Magiera, Jim
name: Ray, Deep
name: Hesthaven, Jan S.
name: Rohde, Christian
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Neural networks are increasingly used in complex (data-driven) simulations as surrogates or for accelerating the computation of classical surrogates. In many applications physical constraints, such as mass or energy conservation, must be satised to obtain reliable results. However, standard machine learning algorithms are generally not tailored to respect such constraints. We propose two different strategies to generate constraint-aware neural networks. We test their performance in the context of front-capturing schemes for strongly nonlinear wave motion in compressible uid ow. Precisely, in this context so-called Riemann problems have to be solved as surrogates. Their solution describes the local dynamics of the captured wave front in numerical simulations. Three model problems are considered: a cubic ux model problem, an isothermal two-phase ow model, and the Euler equations. We demonstrate that a decrease in the constraint deviation correlates with low discretization errors for all model problems, in addition to the structural advantage of fullfilling the constraint.
Dualities of the Matrix Model from T-Duality of the Type II String
Creators: name: Brace, Daniel
name: Morariu, Bogdan
name: Zumino, Bruno
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate in the Matrix theory framework, the subgroup of dualities of the DLCQ of M-theory compactified on three-tori, which corresponds to T-duality in the auxiliary Type II string theory. We show how these dualities are realized in the supersymmetric Yang-Mills gauge theories on dual noncommutative three-tori.
description: 37 pages, LaTeX, no figures, typos corrected
MATHICSE Technical Report: Block Krylov subspace methods for functions of matrices II: Modified block FOM
Creators: name: Frommer, Andreas
name: Lund, Kathryn
name: Szyld, Daniel B.
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We analyze an expansion of the generalized block Krylov subspace framework of [Electron.\ Trans.\ Numer.\ Anal., 47 (2017), pp. 100-126]. This expansion allows the use of low-rank modifications of the matrix projected onto the block Krylov subspace and contains, as special cases, the block GMRES method and the new block Radau-Arnoldi method. Within this general setting, we present results that extend the interpolation property from the non-block case to a matrix polynomial interpolation property for the block case, and we relate the eigenvalues of the projected matrix to the latent roots of these matrix polynomials. Some convergence results for these modified block FOM methods for solving linear system are presented. We then show how {\em cospatial} residuals can be preserved in the case of families of shifted linear block systems. This result is used to derive computationally practical restarted algorithms for block Krylov approximations that compute the action of a matrix function on a set of several vectors simultaneously. We prove some convergence results and present numerical results showing that two modifications of FOM, the block harmonic and the block Radau-Arnoldi methods for matrix functions, can significantly improve the convergence behavior.
Non-Perturbative Structure in Heterotic Strings from Dual F-Theory Models
Creators: name: O'Driscoll, Donal
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine how to construct explicit heterotic string models dual to F-theory in eight dimensions. In doing so we learn about where the moduli spaces of the two theories overlap, and how non-perturbative features leave traces on a purely perturbative level. We also propose a modified T-duality linking M and F-theories based on non-perturbative structures of string theories in eight dimensions.
description: 16 pages, LaTeX; typos corrected, references added
Enhanced J/Psi Production in Deconfined Quark Matter
Creators: name: Thews, Robert L.
name: Schroedter, Martin
name: Rafelski, Johann
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In high energy heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven and the Large Hadron Collider (LHC) at CERN, each central event will contain multiple pairs of heavy quarks. if a region of deconfined quarks and gluons is formed, a new mechanism for the formation of heavy quarkonium bound states will be activated. This is a result of the mobility of heavy quarks in the deconfined region, such that bound states can be formed from a quark and an antiquark which were originally produced in separate incoherent interactions. Model estimates of this effect for J/psi production at RHIC indicate that significant enhancements are to be expected. Experimental observation of such enhanced production would provide evidence for deconfinement unlikely to be compatible with competing scenarios.
description: Added predictions with nonthermal charm quark distributions, also with gluon dissociation replaced by screening. Accepted for publication in Phys. Rev. C
BOSHLANGʻICH SINF OʻQUVCHILARIGA KUNDALIK.COM WEB PORTALINING TAʼSIS ETILISHI
Creators: name: Vasiyeva, Dilfuza
name: Nodirova, Farangiz
Publisher: name: Zenodo
Year: 2024

description: Boshlangʻich sinf oʻquvchilarining kundalik com dasturiga oʻtishining taʼsis etilishi va bu dasturning oʻquvchilar uchun afzalliklari
Data learning from big data
Creators: name: Torrecilla, José L.
name: Romo, Juan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: Technology is generating a huge and growing availability of observa tions of diverse nature. This big data is placing data learning as a central scientific discipline. It includes collection, storage, preprocessing, visualization and, essentially, statistical analysis of enormous batches of data. In this paper, we discuss the role of statistics regarding some of the issues raised by big data in this new paradigm and also propose the name of data learning to describe all the activities that allow to obtain relevant knowledge from this new source of information.
Semi-Rigidity of Through-Tenon Joints under Tension and Shear Loads and Perpendicular-to-Grain Compression
Creators: name: Nguyen, Anh Chi
name: Rezaei Rad, Aryan
name: Weinand, Yves
Publisher: name: Lausanne, Laboratory for Timber Constructions IBOIS
Year: 2019

description: This report presents the results of experimental tests performed on through-tenon joints used in double-layered and double-curved timber plate shells recently developed. Three tests were carried out to determine the semi-rigidity of these wood-wood connections in their three translational degrees-of-freedom. The objective of these tests is to obtain values of axial, shear and perpendicularto- grain compression stiffness of the connections used in large-scale assemblies tested, as well as their maximum capacity in all three directions.
Quantum Field Theory in Light-Front coordinates
Creators: name: Franke, V. A.
name: Novozhilov, Yu. V.
name: Paston, S. A.
name: Prokhvatilov, E. V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Canonical formulation of quantum field theory on the Light Front (LF) is reviewed. The problem of constructing the LF Hamiltonian which gives the theory equivalent to original Lorentz and gauge invariant one is considered. We describe possible ways of solving this problem: (a) the limiting transition from the equal-time Hamiltonian in a fastly moving Lorentz frame to LF Hamiltonian, (b) the direct comparison of LF perturbation theory in coupling constant and usual Lorentz-covariant Feynman perturbation theory. Gauge invariant regularization of LF Hamiltonian via introducing a lattice in transverse coordinates and imposing periodic boundary conditions in LF coordinate $x^-$ for gauge fields on the interval $|x^-|< L$ is considered. We find that LF canonical formalism for this regularization avoid usual most complicated constraints connecting zero and nonzero modes of gauge fields.
description: LaTeX2.09, 45 pages, 7 figures, Published in the book: "Quantum Theory in honour of Vladimir A. Fock", Part 1. Unesco, St. Petersburg University, Euro-Asian Physical Society, 1998
MATHICSE Technical Report: A posteriori error estimation for the stochastic collocation finite element approximation of the heat equation with random coefficients
Creators: name: Nobile, Fabio
name: Vidlicková, Eva
Publisher: name: Écublens, MATHICSE
Year: 2019

description: In this work we present a residual based a posteriori error estimation for a heat equation with a random forcing term and a random diffusion coefficient which is assumed to depend affinely on a finite number of independent random variables. The problem is discretized by a stochastic collocation finite element method and advanced in time by the θ-scheme. The a posteriori error estimate consists of three parts controlling the finite element error, the time discretization error and the stochastic collocation error, respectively. These estimators are then used to drive an adaptive choice of FE mesh, collocation points and time steps. We study the effectiveness of the estimate and the performance of the adaptive algorithm on a numerical example.
Registered Reports: How to publish regardless of the results
Creators: name: Bochynska, Agata
name: Didriksen, John David
name: Longva, Leif
Publisher: name: Zenodo
Year: 2024

description: Description:

Researchers across disciplines are increasingly pre-registering their hypotheses, methods, and analysis plans before they collect or analyze the data. In the Registered Reports publishing format, preregistration is submitted to a journal and after undergoing peer review, it can receive in-principle acceptance for publishing. This means that regardless of the results, the authors have preliminary acceptance of their work in the journal they wish to publish. How did Registered Reports start, what is their purpose, how well do they work for early career researchers and what do research funders think about this publishing format?

In this Open Access Week 2024 session we heard from three invited guests about their perspectives on the topic. In the current collection, we share their presentations from the event.

Speakers:

Prof. Christopher Chambers, Cardiff University  

Dr Emma Henderson, Department of Transport, London, UK

Jan-Ole Hesselberg, Stiftelsen Dam

Event organizers:

Host: Agata Bochynska, UiO

Leif Longva, UiT

John David Didriksen, UiS
Dynamical equivalence, commutation relations and noncommutative geometry
Creators: name: Stichel, P. C.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We revisit Wigner's question about the admissible commutation relations for coordinate and velocity operators given their equations of motion (EOM). In more general terms we want to consider the question of how to quantize dynamically equivalent Hamiltonian structures. A unique answer can presumably be given in those cases, where we have a dynamical symmetry. In this case arbitrary deformations of the symmetry algebra should be dynamically equivalent. We illustrate this for the linear as well as the singular 1d-oscillator. In the case of nonlinear EOM quantum corrections have to be taken into account. We present some examples thereof New phenomena arise in case of more then one degree of freedom, where sometimes the interaction can be described either by the Hamiltonian or by nonstandard commutation relations. This may induce a noncommutative geometry (for example the 2d-oscillator in a constant magnetic field). Also some related results from nonrelativistic quantum field theory applied to solid state physics are briefly discussed within this framework
description: 23 pages, Latex, added reference for section 1
Determination of the spectral variation origin in high-order harmonic generation in noble gases
Creators: name: Nefedova, V. E.
name: Ciappina, M. F.
name: Finke, O.
name: Albrecht, M.
name: Vábek, J.
name: Kozlová, M.
name: Suárez, N.
name: Pisanty, E.
name: Lewenstein, M.
name: Nejdl, J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: One key parameter in the high-order harmonic generation (HHG) phenomenon is the exact frequency of the generated harmonic field. Its deviation from perfect harmonics of the laser frequency can be explained considering (i) the single-atom laser-matter interaction and (ii) the spectral changes of the driving laser. In this work, we perform an experimental and theoretical study of the causes that generate spectral changes in the HHG radiation. We measured the driving laser spectral shift after high harmonic generation in long medium using a correction factor to take into account the multiple possible HHG initiation distances along the laser path. We separate out the contribution of laser spectral shift from the resultant high harmonic spectral shift in order to elucidate the microscopic effect of spectral shift in HHG. Therefore, in some cases we are able to identify the dominant electron trajectory from the experimental data. Our investigations lead to valuable conclusions about atomic dipole phase contribution to a high harmonic spectral shift. We demonstrate that the significant contribution of a long electron path leads to a high harmonic shift, which differs from that expected from the driving laser. Moreover, we assess the origin of the high-order harmonics spectral broadening and provide an explanation for the narrowest high harmonic spectral width in our experiment.
description: 24 pages, 6 figures
Study of Obesity among Adolescents in Rural Wardha District
Creators: name: Bhagat, Arpana
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390404
subject: Educational counselling
classificationCode: 420605
subject: Preventative health care
classificationCode: 420606
subject: Social determinants of health
classificationCode: 420603
subject: Health promotion

description: STROBE checklist for "Study of Obesity among Adolescents in Rural Wardha District".
Can SKA--Phase 1 go much beyond the LHC in supersymmetry search?
Creators: name: Kar, Arpan
name: Mitra, Sourav
name: Mukhopadhyaya, Biswarup
name: Choudhury, Tirthankar Roy
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the potential of the Square Kilometre Array in the first phase (SKA1) in detecting dark matter annihilation signals from dwarf spheroidals in the form of diffuse radio synchrotron. Taking the minimal supersymmetric standard model as illustration, we show that it is possible to detect such signals for dark matter masses about an order of magnitude beyond the reach of the Large Hadron Collider, with about 100 hours of observation with the SKA1.
description: 6 pages, 4 figures, 3 tables, Accepted in Physical Review D (Rapid Communication)
Additional file 9 of Novel stable QTLs identification for berry quality traits based on high-density genetic linkage map construction in table grape
Creators: name: Wang, Huiling
name: Yan, Ailing
name: Sun, Lei
name: Zhang, Guojun
name: Wang, Xiaoyue
name: Ren, Jiancheng
name: Xu, Haiying
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 9: Figure S6. Correlation of the genetic and physical positions. The x-axis represents the genetic groups; the y-axis represents the physical positions.
title: ADCO, Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Cart. 178 (11 H 80), 82 folios, f. 0133
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/2015
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP

description: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 178 (11 H 80), 82 folios, f. 0133, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 178 (11 H 80), 82 folios, f. 0133, 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
MATHICSE Technical Report: Interpolatory rational model order reduction of parametric problems lacking uniform inf-sup stability
Creators: name: Pradovera, Davide
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We present a technique for the approximation of a class of Hilbert space-valued maps which arise within the framework of Model Order Reduction for parametric partial differential equations, whose solution map has a meromorphic structure. Our MOR stategy consists in constructing an explicit rational approximation based on few snapshots of the solution, in an interpolatory fashion. Under some restrictions on the structure of the original problem, we describe a priori convergence results for our technique, hereafter called minimal rational interpolation, which show its ability to identify the main features (e.g. resonance locations) of the target solution map. We also investigate some procedures to obtain a posteriori error indicators, which may be employed to adapt the degree and the sampling points of the minimal rational interpolant. Finally, some numerical experiments are carried out to confirm the theoretical results and the effectiveness of our technique.
Género y Derechos Humanos de la Niña. Una mirada antropológica para la implementación de los estándares jurídicos internacionales y el desarrollo sostenible
Creators: name: Binazzi, Alice
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2019

description: AAVV
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol 4 No 7 (2019)
Duality Constraints on Counterterms in $\mathcal N=5,\ 6$ Supergravities
Creators: name: Freedman, Daniel Z.
name: Kallosh, Renata
name: Yamada, Yusuke
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The UV finiteness found in calculations of the 4-point amplitude in $\mathcal N=5$ supergravity at loop order $L=3, 4$ has not been explained, which motivates our study of the relevant superspace invariants and on-shell superamplitudes for both $\mathcal N=5$ and $\mathcal N=6$. The local 4-point superinvariants for $L = 3,4$ are expected to have nonlinear completions whose 6-point amplitudes have non-vanishing SSL's (soft scalar limits), violating the behavior required of Goldstone bosons. For $\mathcal N=5$, we find at $L=3$ that local 6-point superinvariant and superamplitudes, which might cancel these SSL's, do not exist. This rules out the candidate 4-point counterterm and thus gives a plausible explanation of the observed $L=3$ finiteness. However, at $L= 4$ we construct a local 6-point superinvariant with non-vanishing SSL's, so the SSL argument does not explain the observed $L=4$ $\mathcal N=5$ UV finiteness. For $\mathcal N=6$ supergravity there are no 6-point invariants at either $L= 3$ or 4, so the SSL argument predicts UV finiteness.
description: 28 pages, v2: references added, v3: typos corrected
A Numerical Renormalization Solution for Self-Similar Cosmic Structure Formation
Creators: name: Couchman, H. M. P.
name: Peebles, P. J. E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results of a numerical renormalization approximation to the self- similar growth of clustering of pressureless dust out of a power-law spectrum of primeval Gaussian mass density fluctuations (index n) in an Einstein-de Sitter cosmological model. The self-similar two-point correlation function, xi, seems to be well established. The renormalization solutions for xi show a satisfying insensitivity to the parameters in the method, and at n=-1 and 0 are close to the Hamilton et al. formula for interpolation between the large-scale perturbative limit and stable small-scale clustering. The solutions are tested by comparing the mean relative peculiar velocity of particle pairs and the velocity derived from xi under the assumption of self-similar evolution. Both the renormalization and a comparison conventional N-body solution are in reasonable agreement with the test, although the conventional approach does slightly better at large separations and the renormalization approach slightly better at small separations. Other comparisons of renormalization and conventional solutions are more demanding and the results less satisfactory. Maps of particle positions in redshift space in the renormalization solutions show more nearly empty voids and less prominent walls than do the conventional solutions. The rms relative velocity dispersion is systematically smaller in the renormalization solution. There also are sizeable differences in the frequency distributions of clump masses in the renormalization and conventional solutions. The third moment S_3 from the distribution of mass within cells is in reasonable agreement with second-order perturbation theory on large scales, while on scales less than the clustering length S_3 is roughly consistent with hierarchical clustering but is heavily affected by shot noise.
description: 34 pages including 12 figures. AAS Latex v4.0 macros
La racialización de la diferencia en el campo educativo
Creators: name: Bazán, María Dolores
name: Burgos, María Eugenia
name: Bonillo, Beatriz
name: Rodríguez, Gabriel
name: Tejerina, Marcela
name: Sacchi Duen, Xara
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2019

description: AAVV
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol 4 No 7 (2019)
Promoción educativa de alumnas gitanas en contextos de marginación
Creators: name: Cárdena Rodríguez, Rocío
name: Monreal Gimeno, María Del Carmen
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2019

description: AAVV
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol 4 No 7 (2019)
Inclusión educativa de indígenas y campesinos/as. Sobre educación rural e intercultural en el Noroeste de Argentina
Creators: name: Bensi, María Ángeles
name: De Anquín, Ana
name: Durán, Ariel
name: Rodríguez, Gabriel
name: Vara, Oscar
name: Villagrán, Analía
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2019

description: AAVV
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol 4 No 7 (2019)
Entre límites: Mujeres mexicanas bordeando géneros en el sur de Texas
Creators: name: Vázquez, Blanca
name: Cueva Luna, Teresa E.
name: Terrón-Caro, Teresa
Publisher: name: Comparative Cultural Studies - European and Latin American Perspectives
Year: 2019

description: AAVV
description: Comparative Cultural Studies - European and Latin American Perspectives, Vol 4 No 7 (2019)
Le mois régional de la déclaration : – une nouvelle façon d’aborder l’amélioration de la sécurité du patient, appliquée à la gestion des précautions contact
Creators: name: Noyon-Seymour, Isabelle
name: Beucher, Ambre
name: Guisnel, Sandrine
name: Nasso, Raymond
name: Zubar, Antony
name: Martin, Mélissa
Publisher: name: Health & Co
Year: 2024
Subjects: Précaution complémentaire contact
Questionnaire
Amélioration continue de la qualité
Communication défaillante

description: La structure régionale d’appui à la qualité des soins et à la sécurité des patients Oraqs-97.1 et le centre d’appui pour la prévention des infections associées aux soins des Îles de Guadeloupe (CPias IdG) se sont associés pour conduire une enquête auprès des professionnels des établissements de Guadeloupe sur les difficultés de gestion des précautions complémentaires contact (PCC). À travers un questionnaire détaillant le processus de gestion des PCC, les professionnels ont pu s’exprimer durant le « mois régional de la déclaration » du 1er juin au 15 juillet 2023. Les professionnels déclarent des difficultés concernant la gestion du matériel dédié aux PCC (39%), l’indisponibilité en temps réel de la prescription médicale adéquate (32%), la transmission défaillante de l’information au sein de l’équipe (32%), le défaut de connaissance sur les PCC (32%), le défaut d’information par le service « adresseur » du patient en PCC (28%), le défaut d’information par le laboratoire (21%). De manière plus inattendue, la majorité des professionnels déclarent des difficultés à communiquer avec le patient et son entourage sur les PCC : ils ont du mal à expliquer les PCC au patient (52%) ou à l’entourage (40%), et à faire respecter les PCC par le patient (59%) et par l’entourage (49%). Cette enquête sur la gestion des PCC a ainsi permis l’expression des difficultés particulières de communication, au-delà des classiques considérations d’observance. L’analyse des résultats a conduit à la définition d’un plan d’action comportant des accompagnements ciblés menés par le CPias et une offre de formation-action co-construite par l’Oraqs-97.1 et le CPias IdG pour étayer la communication des professionnels à travers des mises en situation.
title: ADCO, Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Cart. 31 (G 135), 549 folios, f. 0188
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: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0188, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0188, 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
On the SO(n+3) to SO(n) branching multiplicity space
Creators: name: Lauret, Emilio A.
name: Bertone, Fiorela Rossi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20G05, 22E46

description: We study the decomposition as an $\textrm{SO}(3)$-module of the multiplicity space corresponding to the branching from $\textrm{SO}(n+3)$ to $\textrm{SO}(n)$. Here, $\textrm{SO}(n)$ (resp.\ $\textrm{SO}(3)$) is considered embedded in $\textrm{SO}(n+3)$ in the upper left-hand block (resp.\ lower right-hand block). We show that when the highest weight of the irreducible representation of $\textrm{SO}(n)$ interlaces the highest weight of the irreducible representation of $\textrm{SO}(n+3)$, then the multiplicity space decomposes as a tensor product of $\lfloor (n+2)/2\rfloor$ reducible representations of $\textrm{SO}(3)$.
MATHICSE Technical Report : A Hele-Shaw-Cahn-Hilliard model for incompressible two-phase flows with different densities
Creators: name: Dede', Luca
name: Garcke, Harald
name: Lam, Kei Fong
Publisher: name: Écublens, MATHICSE
Year: 2019

description: Topology changes in multi-phase fluid flows are difficult to model within a traditional sharp interface theory. Diffuse interface models turn out to be an attractive alternative to model two-phase flows. Based on a Cahn{Hilliard{Navier{Stokes model introduced by Abels, Garcke and Grun (Math. Models Methods Appl. Sci. 2012), which uses a volume averaged velocity, we derive a diffuse interface model in a Hele{ Shaw geometry, which in the case of non-matched densities, simplifies an earlier model of Lee, Lowengrub and Goodman (Phys. Fluids 2002). We recover the classical Hele{ Shaw model as a sharp interface limit of the diffuse interface model. Furthermore, we show the existence of weak solutions and present several numerical computations including situations with rising bubbles and fingering instabilities.
Strong coupling of excited heavy mesons
Creators: name: Colangelo, P.
name: De Fazio, F.
name: Di Bartolomeo, N.
name: Gatto, R.
name: Nardulli, G.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the strong coupling constant $G_{B^{**} B π} \; (G_{D^{**} D π})$, where $B^{**}$ ($D^{**}$) is the $0^+$ $P-$wave $b \bar q \; (c \bar q)$ state, by QCD sum rules and by light-cone sum rules. The two methods give compatible results in the limit $m_Q \to \infty$, with a rather large value of the coupling constant. We apply the results to the calculation of the hadronic widths of the positive parity $B$ and $D$ states and to the chiral loop contribution to the ratio $f_{D_s}/f_D$.
description: 31 pages, RevTeX, 4 figures appended as uuencoded file
MATHICSE Technical Report : The index of singular zeros of harmonic mappings of anti-analytic degree one
Creators: name: Luce, Robert
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We study harmonic mappings of the form f(z) = h(z) 􀀀 z, where h is an analytic function. In particular we are interested in the index (a generalized multiplicity) of the zeros of such functions. Outside the critical set of f, where the Jacobian of f is non-vanishing, it is known that this index has similar properties as the classical multiplicity of zeros of analytic functions. Little is known about the index of zeros on the critical set, where the Jacobian vanishes; such zeros are called singular zeros. Our main result is a characterization of the index of singular zeros, which enables one to determine the index directly from the power series of h.
MATHICSE Technical Report : A complex blood flow patterns in an idealized left ventricle: a numerical study
Creators: name: Tagliabue, Anna
name: Dede', Luca
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: In this paper, we study the blood flow dynamics in a three-dimensional (3D) idealized left ventricle of the human heart whose deformation is driven by muscle contraction and relaxation in coordination with the action of the mitral and aortic valves. We propose a simplified but realistic mathematical treatment of the valves function based on mixed time-varying boundary conditions (BCs) for the Navier-Stokes equations modeling the flow. These switching in time BCs, from natural to essential and viceversa, model either the open or the closed configurations of the valves. At the numerical level these BCs are enforced by means of the extended Nitsche's method [A. Tagliabue et al., MATHICSE report, 2015]. Numerical results for 3D idealized left ventricle obtained by means of Isogeometric Analysis are presented, discussed in terms of both instantaneous and phase-averaged quantities of interest and validated against those available in literature, both experimental and computational. The complex blood flow patterns are analysed to describe the characteristic fluid properties, to show the transitional nature of the flow, and to highlight its main features inside the left ventricle. The sensitivity of the intraventricular flow patterns to the mitral valve properties is also investigated.
Optical properties of spin coated and sol-gel dip coated cupric oxide thin films
Creators: name: Samarasekara, P.
name: Premasiri, N. G. K. V. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spin coating technique was employed to fabricate CuO films at different spin speeds for different time duration, and they were annealed at different temperatures for different time durations in air. These thin films were characterized using UV Visible spectrometer and solar cell simulator. As the spinning rate increases, the corresponding band gap energy of the thin film increases. However, the annealing temperature does not affect the optical band gap. Moreover, the optical band gap does not depend on the annealing time and spin time. It was observed that the optical band gap decreases with the number of CuO layers. The optical band gap values of CuO thin films were between 1.843 and 1.869 eV. Inclusion of the two additives enhances the photocurrent, photovoltage and efficiency. Photocurrent density can be enhanced from 0.1464 to 1.172 mA per cm2 using the additive ethylene glycol. Properties of CuO films synthesized using sol gel dip coating technique were compared with those of CuO films grown using spin coating method.
description: 11 pages, 4 tables, 4 figures
Symmetric Subgroups of Gauged Supergravities and AdS String Theory Vertex Operators
Creators: name: Dolan, L.
name: Langham, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how the gauge symmetry representations of the massless particle content of gauged supergravities that arise in the AdS/CFT correspondences can be derived from symmetric subgroups to be carried by string theory vertex operators in these compactified models, although an explicit vertex operator construction of IIB string and M theories on AdSxS remains elusive. Our symmetry mechanism parallels the construction of representations of the Monster group and affine algebras in terms of twisted conformal field theories, and may serve as a guide to the perturbative description of the IIB string on AdSxS.
description: 9 pages, LaTeX
Seepage process on weathered elution-deposited rare earth ores with ammonium carboxylate solution
Creators: name: Hualiang, Zhou
name: Zhenyue, Zhang
name: Zhuo, Chen
name: Defeng, Liu
name: Xiuwei, Chai
name: Han, Zhang
name: Ru-An, Chi
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2019
Subjects: permeability, weathered crust elution-deposited rare earth ore, ammonium carboxylate, hydrodynamics

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735
MATHICSE Technical Report : Incremental computation of block triangular matrix exponentials with application to option pricing
Creators: name: Kressner, Daniel
name: Luce, Robert
name: Statti, Francesco
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We study the problem of computing the matrix exponential of a block triangular matrix in a peculiar way: Block column by block column, from left to right. The need for such an evaluation scheme arises naturally in the context of option pricing in polynomial diffusion models. In this setting a discretization process produces a sequence of nested block triangular matrices, and their exponentials are to be computed at each stage, until a dynamically evaluated criterion allows to stop. Our algorithm is based on scaling and squaring. By carefully reusing certain intermediate quantities from one step to the next, we can efficiently compute such a sequence of matrix exponentials.
MATHICSE Technical Report : Biomembrane modeling with Isogeometric Analysis
Creators: name: Bartezzaghi, Andrea
name: Dede', Luca
name: Quarteroni, Alfio
Publisher: name: Écublens, MATHICSE
Year: 2019

description: We consider the numerical approximation of lipid biomembranes, including red blood cells, described through the Canham-Helfrich model, according to which the shape minimizes the bending energy under area and volume constraints. Energy minimization is performed via L2- gradient flow of the Canham-Helfrich energy using two Lagrange multipliers to weakly enforce the constraints. This yields a highly nonlinear, high order, time dependent geometric Partial Differential Equation (PDE). We represent the biomembranes as single-patch NURBS closed surfaces. We discretize the geometric PDEs in space with NURBS-based Isogeometric Analysis and in time with Backward Differentiation Formulas. We tackle the nonlinearity in our formulation through a semi-implicit approach by extrapolating, at each time level, the geometric quantities of interest from previous time steps. We report the numerical results of the approximation of the Canham-Helfrich problem on ellipsoids of different aspect ratio, which lead to the classical biconcave shape of lipid vesicles at equilibrium. We show that this framework permits an accurate approximation of the Canham-Helfrich problem, while being computationally efficient.
MATHICSE Technical Report : Low-rank approximation in the Frobenius norm by column and row subset selection
Creators: name: Cortinovis, Alice
name: Kressner, Daniel
Publisher: name: Écublens, MATHICSE
Year: 2019

description: A CUR approximation of a matrix A is a particular type of low-rank approximation where C and R consist of columns and rows of A, respectively. One way to obtain such an approximation is to apply column subset selection to A and its transpose. In this work, we describe a numerically robust and much faster variant of the column subset selection algorithm proposed by Deshpande and Rademacher (2010), which guarantees an error close to the best approximation error in the Frobenius norm. For cross approximation, in which U is required to be the inverse of a submatrix of A described by the intersection of C and R, we obtain a new algorithm with an error bound that stays within a factor k+1 of the best rank-k approximation error in the Frobenius norm. To the best of our knowledge, this is the first deterministic polynomial-time algorithm for which this factor is bounded by a polynomial in k. Our derivation and analysis of the algorithm is based on derandomizing a recent existence result by Zamarashkin and Osinsky (2018). To illustrate the versatility of our new column subset selection algorithm, an extension to low multilinear rank approximations of tensors is provided as well.
The effect of crosslinking conditions on the dynamic viscosity of organosilicon polymers
Creators: name: Klepka, Tomasz
name: Nowacka, Agnieszka
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2019
Subjects: abrasive flow machining, organosilicon polymers, abrasive medium, crosslinking conditions

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735
Efficient Explicit Time Stepping of High Order Discontinuous Galerkin Schemes for Waves
Creators: name: Schoeder, Svenja
name: Kormann, Katharina
name: Wall, Wolfgang
name: Kronbichler, Martin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M60, 65Y20, 68Q25, 68W40

description: This work presents algorithms for the efficient implementation of discontinuous Galerkin methods with explicit time stepping for acoustic wave propagation on unstructured meshes of quadrilaterals or hexahedra. A crucial step towards efficiency is to evaluate operators in a matrix-free way with sum-factorization kernels. The method allows for general curved geometries and variable coefficients. Temporal discretization is carried out by low-storage explicit Runge-Kutta schemes and the arbitrary derivative (ADER) method. For ADER, we propose a flexible basis change approach that combines cheap face integrals with cell evaluation using collocated nodes and quadrature points. Additionally, a degree reduction for the optimized cell evaluation is presented to decrease the computational cost when evaluating higher order spatial derivatives as required in ADER time stepping. We analyze and compare the performance of state-of-the-art Runge-Kutta schemes and ADER time stepping with the proposed optimizations. ADER involves fewer operations and additionally reaches higher throughput by higher arithmetic intensities and hence decreases the required computational time significantly. Comparison of Runge-Kutta and ADER at their respective CFL stability limit renders ADER especially beneficial for higher orders when the Butcher barrier implies an overproportional amount of stages. Moreover, vector updates in explicit Runge--Kutta schemes are shown to take a substantial amount of the computational time due to their memory intensity.
ASCA observations of type-2 Seyfert Galaxies. III. Orientation and X-ray Absorption
Creators: name: Turner, T. J.
name: George, I. M.
name: Nandra, K.
name: Mushotzky, R. F.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the spectral properties of a sample of type-2 Seyfert galaxies based upon the analysis of \asca data. In this paper we consider the sources for which the X-ray spectra appear to be dominated by the nuclear continuum, transmitted through a large column of absorbing material. We find that both Seyfert-2 galaxies and NELGs show iron K$α$ line profiles indicative of reprocessing of nuclear X-rays in a face-on accretion disk. Such line profiles are also observed in Seyfert-1 galaxies. This result is contrary to unification models, which would predict the inner regions of Seyfert-2 galaxies to be observed edge-on. This raises some questions as to the orientation of the circumnuclear absorber. If the observed differences between Seyfert type-1 and type-2 galaxies, and NELGs are not due to differences in the orientation of the absorbing material, then we suggest that differences in dust composition and grain size, and in the density of the circumnuclear gas could be of primary importance.
description: 28 pages, 3 figures. LaTeX with encapsulated postscript. To appear in the Astrophysical Journal
Are M-atrix theory and Maldacena's conjecture related?
Creators: name: Chepelev, Iouri
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give arguments in the support of a relation between M-atrix theory and Maldacena's conjecture. M-atrix theory conjecture implies the equivalence of 11-D light-cone supergravity and strongly-coupled (0+1)-D SYM. Maldacena's SUGRA/SYM duality conjecture implies, in the one dimensional SYM case, the equivalence between strongly-coupled (0+1)-D SYM and 11-D supergravity compactified on a spatial circle in the formal Seiberg-Sen limit. Using the classical equivalence between 11-D supergravity on a light-like circle and on a spatial circle in the formal Seiberg-Sen limit, we argue that in the (0+1)-D SYM case, the large-N M-atrix theory in the supergravity regime is equivalent to SUGRA/SYM duality.
description: 10 pages, LATEX; v2: references added; v3: An expanded discussion of the flat space interpretation and some other clarifying remarks added. References and acknowledgments added; v4: Final version, to appear in PLB