Search results for "102"

showing 10 items of 2892 documents

Existence de points fixes enlacés à une orbite périodique d'un homéomorphisme du plan

1992

Let f be an orientation-preserving homeomorphism of the plane such that f-Id is contracting. Under these hypotheses, we establish the existence, for every periodic orbit, of a fixed point which has nonzero linking number with this periodic orbit.

55M20 54H20Surfaces homeomorphismsPlane (geometry)Applied MathematicsGeneral Mathematics010102 general mathematics[ MATH.MATH-DS ] Mathematics [math]/Dynamical Systems [math.DS][MATH.MATH-DS]Mathematics [math]/Dynamical Systems [math.DS]Linking numberFixed pointLinking numbers01 natural sciencesHomeomorphism010101 applied mathematicsCombinatoricssymbols.namesakesymbolsPeriodic orbitsPeriodic orbitsAstrophysics::Earth and Planetary AstrophysicsMathematics - Dynamical Systems0101 mathematicsMSC : 55M20 54H20Mathematics
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Quantization of Poisson Lie Groups and Applications

1996

LetG be a connected Poisson-Lie group. We discuss aspects of the question of Drinfel'd:can G be quantized? and give some answers. WhenG is semisimple (a case where the answer isyes), we introduce quantizable Poisson subalgebras ofC ∞(G), related to harmonic analysis onG; they are a generalization of F.R.T. models of quantum groups, and provide new examples of quantized Poisson algebras.

58B30Pure mathematicsGeneralizationPoisson distribution01 natural sciencesHarmonic analysissymbols.namesakeQuantization (physics)58F060103 physical sciences0101 mathematicsQuantumMathematical PhysicsComputingMilieux_MISCELLANEOUSMathematicsPoisson algebraDiscrete mathematics[MATH.MATH-RT]Mathematics [math]/Representation Theory [math.RT]Group (mathematics)010102 general mathematicsLie groupStatistical and Nonlinear Physics81S1017B37[ MATH.MATH-RT ] Mathematics [math]/Representation Theory [math.RT]symbols010307 mathematical physics16W30
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Does dietary salt induce autoimmunity?

2013

Two recent publications suggest that dietary salt may polarize TH17 cells and therefore increase the risk of developing autoimmune disease. Where low salt diets can readily be tested for their therapeutic effects in autoimmune disease, more work is needed to connect dietary salts with the development of immunopathology.

610 Medicine & healthBiology10263 Institute of Experimental Immunologymedicine.disease_causeImmediate early proteinAutoimmunity1307 Cell Biology03 medical and health sciences0302 clinical medicineLow-salt dietsImmunopathology1312 Molecular BiologymedicineMolecular Biology030304 developmental biologyAutoimmune disease0303 health sciencesCell Biologymedicine.diseaseResearch Highlight3. Good healthImmunology570 Life sciences; biologyInterleukin 17030215 immunologyDietary saltCell research
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Consumo episódico intensivo de alcohol en jóvenes argentinos durante la realización de la previa

2015

En España existen estudios que demuestran que prácticas como el Botellón (concentración intermitente de de jóvenes en espacios abiertos con el objetivo principal de consumir alcohol, tras adquirir previamente la bebida en establecimientos) potencian un nuevo patrón de consumo de alcohol sobre todo en población juvenil (Cortés et al., 2007, 2008, 2010). Este patrón, llamado Consumo Episódico Intensivo de Alcohol (CEIA, o también Binge drinking, Consumo Concentrado de Alcohol, etc.) se caracteriza por la ingesta de grandes cantidades de alcohol durante pocas horas (Anderson y Baumberg, 2006; Farke y Anderson, 2007), esta forma de consumo ha ido expandiéndose a otras ciudades de América Latina…

610200330901psicología generalbebidas alcohólicas610700psicología del niño y del adolescente
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Intención de práctica en el Judo: un análisis cognitivo-social

2015

Este estudio tuvo como objetivo analizar la capacidad de un modelo basado en la teoría de la motivación de logro y la teoría de la autodeterminación para predecir la intención de la práctica del judo. Este estudio incorporamos las variables de clima percibido, satisfacción de necesidades básicas, motivación autodeterminada y la percepción de conflicto como predictores de la intención de práctica en el Judo. Se realizó con una muestra de 478 judokas de edades comprendidas entre 11 y 18 años. Los modelos de ecuaciones estructurales apoyaron al modelo propuesto. La secuencia de las relaciones entre las percepciones de clima tarea y entrenador percibido, la satisfacción de las necesidades psico…

610200610608clima percibidoautodeterminaciónmotivaciónintención de prácticasatisfacción de necesidades básicasjudoconflicto
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On the stability of some controlled Markov chains and its applications to stochastic approximation with Markovian dynamic

2015

We develop a practical approach to establish the stability, that is, the recurrence in a given set, of a large class of controlled Markov chains. These processes arise in various areas of applied science and encompass important numerical methods. We show in particular how individual Lyapunov functions and associated drift conditions for the parametrized family of Markov transition probabilities and the parameter update can be combined to form Lyapunov functions for the joint process, leading to the proof of the desired stability property. Of particular interest is the fact that the approach applies even in situations where the two components of the process present a time-scale separation, w…

65C05FOS: Computer and information sciencesStatistics and ProbabilityLyapunov functionStability (learning theory)Markov processContext (language use)Mathematics - Statistics Theorycontrolled Markov chainsStatistics Theory (math.ST)Stochastic approximation01 natural sciencesMethodology (stat.ME)010104 statistics & probabilitysymbols.namesake60J05stochastic approximationFOS: MathematicsComputational statisticsApplied mathematics60J220101 mathematicsStatistics - MethodologyMathematicsSequenceMarkov chain010102 general mathematicsStability Markov chainssymbolsStatistics Probability and Uncertaintyadaptive Markov chain Monte Carlo
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From Feynman–Kac formulae to numerical stochastic homogenization in electrical impedance tomography

2016

In this paper, we use the theory of symmetric Dirichlet forms to derive Feynman–Kac formulae for the forward problem of electrical impedance tomography with possibly anisotropic, merely measurable conductivities corresponding to different electrode models on bounded Lipschitz domains. Subsequently, we employ these Feynman–Kac formulae to rigorously justify stochastic homogenization in the case of a stochastic boundary value problem arising from an inverse anomaly detection problem. Motivated by this theoretical result, we prove an estimate for the speed of convergence of the projected mean-square displacement of the underlying process which may serve as the theoretical foundation for the de…

65C05Statistics and Probability65N21stochastic homogenizationquantitative convergence result01 natural sciencesHomogenization (chemistry)78M40general reflecting diffusion process010104 statistics & probabilitysymbols.namesakeFeynman–Kac formula60J4535Q60Applied mathematicsFeynman diagramBoundary value problemSkorohod decomposition0101 mathematicsElectrical impedance tomographyBrownian motionMathematicsrandom conductivity field65N75010102 general mathematicsFeynman–Kac formulaLipschitz continuityBounded functionstochastic forward problemsymbols60J55Statistics Probability and Uncertainty60H30electrical impedance tomographyThe Annals of Applied Probability
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Violence against parents: key factors analysis

2014

La Fiscalía General del Estado español, en su memoria de octubre de 2009, destacó que la violencia filio-parental era el tipo penal más preocupante en adolescentes menores de edad por su incremento en prevalencia e incidencia. Por ello, es importante conocer algunas características de las familias que la sufren y de las hijas e hijos maltratadores. Para lograr dichos objetivos hemos realizado una revisión bibliométrica de análisis cualitativo en base a documentos y libros desde 1957 hasta 2011, de países como Australia, Japón, Canadá, Nueva Zelanda, Francia, E.E.U.U. o España principalmente, desde la cual se pretende conocer (a) qué es la violencia filio-parental, (b) el ciclo de este tipo …

:Investigación::61 Psicología::6102 Psicología del niño y del adolescente [Materias]media_common.quotation_subjectCiclo de la violenciaTypes of child-parents violencelcsh:BF1-990Violencia filio parentalciclo de la violenciaCriminology159.9 - PsicologíaState (polity)Violencia psico-emocionalPrevalenceSociologyGeneral PsychologyViolencia filio-parentalmedia_commonPsychological-emotional violenceIncidence (epidemiology)prevalenciaTipos de violencia filialViolence against parentsViolence cyclelcsh:PsychologyOrder (business)violencia psico-emocionaltipos de violencia filialPrevalencia
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Experimental Evidence for an Attractive p-φ Interaction

2021

Physical review letters 127(17), 172301 (2021). doi:10.1103/PhysRevLett.127.172301

:Kjerne- og elementærpartikkelfysikk: 431 [VDP]ProtonGeneral Physics and Astronomy01 natural sciencesHigh Energy Physics - ExperimentALICEscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]correlation functionNuclear ExperimentPhysicsstrong interactionVDP::Kjerne- og elementærpartikkelfysikk: 431:Nuclear and elementary particle physics: 431 [VDP]VDP::Nuclear and elementary particle physics: 431nuclear matterPHOTOPRODUCTIONParticle Physics - Experimentcorrelation: two-particleQCD SUM-RULES; VECTOR-MESONS; COLLISIONS; PARTICLES; PHOTOPRODUCTIONCOLLISIONSParticle physicsp p: scatteringMesonStrong interactionCorrelation function (quantum field theory)[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Physics and Astronomy(all)530114 Physical sciencessymmetry: chiralQCD SUM-RULES; VECTOR-MESONS; COLLISIONS; PARTICLES; PHOTOPRODUCTION;QCD SUM-RULES0103 physical sciencesPARTICLEScorrelation: two-particle ; symmetry: chiral ; p p: scattering ; scattering length ; Phi(1020) ; coupling constant ; correlation function ; strong interaction ; ALICE ; nuclear matter ; effective range ; experimental results ; 13000 GeV-cms/nucleonNuclear Physics - Experimentddc:530phi meson particle physics ALICE010306 general physicstwo-particle [correlation]Coupling constantchiral [symmetry]010308 nuclear & particles physicsScatteringPhi(1020)coupling constantScattering lengthNuclear matter13000 GeV-cms/nucleonscattering lengthStrong Interactioneffective rangeHigh Energy Physics::ExperimentVECTOR-MESONSexperimental results
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Fixed Points for Multivalued Convex Contractions on Nadler Sense Types in a Geodesic Metric Space

2019

In 1969, based on the concept of the Hausdorff metric, Nadler Jr. introduced the notion of multivalued contractions. He demonstrated that, in a complete metric space, a multivalued contraction possesses a fixed point. Later on, Nadler&rsquo

<b>54H25</b>Physics and Astronomy (miscellaneous)GeodesicGeneral MathematicsMathematics::General TopologyFixed-point theorem02 engineering and technologyFixed point01 natural sciencesComplete metric spacegeodesic metric spaceCombinatoricsregular golbal-inf function0202 electrical engineering electronic engineering information engineeringComputer Science (miscellaneous)0101 mathematicsMathematicsStatistics::Applicationslcsh:Mathematics010102 general mathematicsRegular polygonconvex multivalued left A-contractionlcsh:QA1-939Metric spaceHausdorff distancefixed point<b>47H10</b>Chemistry (miscellaneous)<title>MSC</title>020201 artificial intelligence & image processingright A-contractionSymmetry
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