Search results for " conti"

showing 10 items of 1052 documents

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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Thermomineral waters of Greece: geochemical characterization

2020

75 °C). In terms of pH most results vary from 5.5 to 823 °C) ii) warm (23 40 °C) iii) thermal (40 75 °C) and iv) hyperthermal (&gtfew springs show either very low pH (&lt10) proposing serpentinization processes. Regarding TDS concentrations collected waters can be subdivided into low salinity (up to 1.5 g/L) brackish (up to 20 g/L) and saline (up to 43 g/L). The medium high salinities can be justified by mixing with sea water and/or strong waterrock interaction processes. Isotope composition of O and H ranges from 12.7 to +2.7 ‰ SMOW and from 91 to +12 ‰ SMOW respectively and is generally comprised between the Global Meteoric Water Line and the East Mediterranean Meteoric Water Line. Only few water samples show a positive shift for δ18O possibly related to high temperature waterrock interaction processes. Carbon dioxide (18 997000 μmol/mol) or N2 (1100 989000 μmol/mol) or CH4 (&ltMany geothermal areas of Greece are located in regions affected by Miocene or Quaternary volcanism and in continental basins characterised by elevated heat flow. Moreover the majority of them is found along the coast as well as in islands of the Aegean Sea and thus thermal water is often brackish to saline due to marine intrusion into costal aquifer. In the present study almost 300 thermal and cold mineral water samples were collected along the Hellenic territory with their physicochemical parameters (temperature pH electrical conductivity and Eh) and the amount of bicarbonates (titration with 0.1N HCl) being determined in situ. Additionally gases found either in free or dissolved phase were sampled. Both water and gas samples were analysed at the INGVPa laboratories for major ions (Ion Chromatography) silica (Inductively Coupled Plasma Optical Emission Spectrometry) chemical composition of free and dissolved gases (Gas Chromatography) water isotopes (O and H) and carbon and helium isotopes of free and dissolved gases (Mass Spectrometry). The temperature of the investigated waters ranges from 6.5 to 98°C pH from 1.96 to 11.98 whilst Total Dissolved Solids (TDS) from 0.06 to 43 g/L. Based on the temperature parameter waters can be divided into four groups: i) cold (&lt0.5 913000 μmol/mol) are the prevailing gas species found in the studied sites. The δ13CCO2 values ranged from 20.1 to +8.5 ‰ whilst the isotope ratio of He from 0.21 to 6.71 R/RA.4) suggesting interaction with H2Srich gases or very high pH values (&gtSettore GEO/08 - Geochimica E Vulcanologia
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Up-to-date Spanish continental Neogene synthesis and paleoclimatic interpretation

1993

A synthesis of the Spanish continental Neogene is presented by designing an integrated correlative chart of the Neo" gen-e "succes"Siuns-ofthe "lberian-PeninsuIa-. -Ninemain-sedimentary-breaks-have-been -distinguished-in-most-of-the "basins. They are considered a valuable criteria for correlation as they occur in similar time intervals from basin to basin. The determined sedimentary breaks occur in the Agenian, Ramblian, Middle Aragonian, Late Aragonian, Late Vallesian, Middle Turolian, Late Turolian, Late Ruscinian-Early Villafranchian, and Villafranchian ages. The larger interior basins (Ebro, Tajo, Duero) show a fairly complete Neogene sedimentary record in which the aboye mentioned sedi…

:CIENCIAS DE LA TIERRA Y DEL ESPACIO::Geología::Geología regional [UNESCO]UNESCO::CIENCIAS DE LA TIERRA Y DEL ESPACIO::Geología::Geología regionalPaleoclimasCuencas continentalesEspañaContinental basinsPaleoclimates SpainCorrelación estratigráficaStratigraphic correlation Sedimentary discontinuitiesNeógenoNeógeno; Cuencas continentales; Correlación estratigráfica; Discontinuidades sedimentarias; Paleoclimas; EspañaGeología estratigráficaNeogeneDiscontinuidades sedimentariasNeogene; Continental basins; Stratigraphic correlation Sedimentary discontinuities; Paleoclimates Spain
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La Muestra Continua de Vidas Laborales (MCVL) como fuente generadora de datos para el estudio del sistema de pensiones

2015

Esta tesis tiene como elemento fundamental de análisis la denominada Muestra Continua de Vidas Laborales (MCVL), como fuente generadora de datos para el estudio del sistema de público de pensiones de España. La MCVL es un conjunto de microdatos individuales anonimizados extraídos de los registros de la Seguridad Social de España. La MCVL se obtiene a partir de un Muestreo Aleatorio Simple (MAS) sobre la población de referencia (conjunto de personas relacionadas durante todo el año con la Seguridad Social, bien como afiliadas o bien como perceptoras de prestaciones, pero con ciertos matices en dicha relación). Los objetivos principales de esta tesis son: - Contribuir a aumentar el conocimien…

:CIENCIAS ECONÓMICAS::Economía sectorial::Finanzas y seguros [UNESCO]UNESCO::MATEMÁTICAS::Investigación operativa::Programación no lineal:MATEMÁTICAS::Probabilidad ::Matemáticas actuariales [UNESCO]Rentas vitaliciasSistema público de pensionesUNESCO::CIENCIAS ECONÓMICAS::Economía sectorial::Finanzas y segurosTest chi-cuadrado:MATEMÁTICAS::Estadística ::Teoría y técnicas de muestreo [UNESCO]Incapacidad permanenteMutuas de Accidentes de TrabajoViudedadCapitalización:MATEMÁTICAS::Investigación operativa::Programación no lineal [UNESCO]Muestreo Aleatorio EstratificadoUNESCO::MATEMÁTICAS::Probabilidad ::Matemáticas actuarialesUNESCO::MATEMÁTICAS::Estadística ::Teoría y técnicas de muestreoInforme Estadístico anual INSSp-valorTamaño del efectoMuestra Continua de Vidas LaboralesSelección de submuestras
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Different approaches to marriage downgrading : from an anti-elusive measure to an antidiscriminatory claim

2021

The essay focuses on the different mechanisms of marriage downgrading. Given the principle of ?cross-border continuity? of statuses, limits to this continuity are sometimes admitted and they are placed through downgrading mechanisms. That can occour in the case of same-sex marriages transcription in a Member State which does not allow such marriages, but which does allow samesex registered partnerships. Downgrading mechanism has an anti-elusive function, but it is not without problems in terms of discrimination on the grounds of sexual orientation. A different approach is taken in the case of an opposite-sex couple requesting the downgrading of their marriage, celebrated before the Member S…

:CIENCIAS JURÍDICAS [UNESCO]cross-border coupleregistered partnershippareja transfronterizadiscriminación. 130 147but which does allow samesex registered partnerships. Downgrading mechanism has an anti-elusive functiondowngradingRoberto The essay focuses on the different mechanisms of marriage downgrading. Given the principle of ?cross-border continuity? of statuseslimits to this continuity are sometimes admitted and they are placed through downgrading mechanisms. That can occour in the case of same-sex marriages transcription in a Member State which does not allow such marriagesbut it is not without problems in terms of discrimination on the grounds of sexual orientation. A different approach is taken in the case of an opposite-sex couple requesting the downgrading of their marriagedegradaciónUNESCO::CIENCIAS JURÍDICAScelebrated before the Member State allowed access to registered partnerships for all sex couples. The element of voluntariness seems to be the prerequisite for a proper anti-discrimination rule FamilyFamiliamatrimonio2386-4567 22661 Actualidad jurídica iberoamericana 587897 2021 15 8113553 Different approaches to marriage downgrading from an anti-elusive measure to an antidiscriminatory claim Garettouniones registradasmarriagediscrimination.
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Adaptive synchronization of master-slave systems with mixed neutral and discrete time-delays and nonlinear perturbations

2011

This paper investigates the delay-dependent adaptive synchronization problem of the master and slave structure of linear systems with both constant neutral and time-varying discrete time-delays and nonlinear perturbations based on the Barbalat lemma and matching conditions. An adaption law which includes the master-slave parameters is obtained by using the Lyapunov functional method and inequality techniques to synchronize the master-slave systems without the knowledge of upper bounds of perturbation terms. Particularly, it is shown that the synchronization speed can be controlled by adjusting the update gain of the synchronization signal. A numerical example has been given to show the effe…

:Informàtica::Automàtica i control [Àrees temàtiques de la UPC]Automatic controlPertorbació (Matemàtica)Synchronization of chaosLinear systemMaster-slave systemsNonlinear perturbationsPerturbation (astronomy)Master/slaveNonlinear perturbationsSynchronizationAdaptive synchronizationDiscrete time and continuous timeControl and Systems EngineeringControl theorySincronitzacióMathematicsAsian Journal of Control
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On Functions of Integrable Mean Oscillation

2005

Given f 2 L1(T) we denote by wmo(f) the modulus of mean oscillation given by wmo(f)(t) = sup 0 0 such that Z 1 0 [wmo(f)(t)]p dt t Z 1 0 [who(f)(t)]p dt t Cp Z 1 0 [wmo(f)(t)]p dt t. -Oscar.Blasco@uv.es

:MATEMÁTICAS [UNESCO]Modulus of continuityMódulos de continuidadMean oscillationBMO; Módulos de continuidadMean oscillation; BMO; Modulus of continuityBMOUNESCO::MATEMÁTICAS
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Estudios sobre los problemas ternarios de probabilidad condicional de nivel N0

2014

Esta tesis aborda el problema de la enseñanza y aprendizaje de la probabilidad condicional, desde la resolución de problemas. Concretamente nos interesamos por una familia particular de problemas, que denominamos problemas ternarios de probabilidad condicional de nivel N0 y que se caracterizan por no presentar ninguna probabilidad condicional como dato conocido en el enunciado. Los objetivos concretos de la tesis son tres: primero, profundizar en el estudio de la estructura matemática de los problemas ternarios de nivel N0; segundo, observar la actuación de un grupo de nueve estudiantes cursando la asignatura Matemáticas Opción B de 4º de ESO resolviendo problemas de nivel N0; y tercero, di…

:MATEMÁTICAS [UNESCO]Tablas de contingencia 2x2Probabilidad condicionalResolución de problemasDidáctica de la Matemática:PEDAGOGÍA [UNESCO]UNESCO::PEDAGOGÍAUNESCO::MATEMÁTICASProcesos de enseñanza
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Relació entre responsabilitat social universitària i compromís organitzacional de funcionaris xilens

2015

Mitjançant aquest estudi es va buscar esbrinar els components de compromís organitzacional predominant en funcionaris d'una institució d'educació universitària xilena i la percepció que aquests mateixos treballadors tenen sobre l'exercici de la responsabilitat social de l'organització, per establir finalment una relació entre ambdues. Van ser enquestats 312 funcionaris universitaris, acadèmics, professionals no acadèmics i administratius, que van constituir una mostra vàlida de 296 funcionaris de diferents facultades, dependències i/o organismes d'una mateixa Universitat. Els resultats indiquen que els tals funcionaris han desenvolupat en major mesura un compromís basat en l'afecte amb l'or…

:PSICOLOGÍA [UNESCO]General Earth and Planetary SciencesUNESCO::PSICOLOGÍAResponsabilitat social universitària compromís organitzacional compromís afectiu compromís normatiu compromís de continuïtat. ArtículoGeneral Environmental ScienceAnuari de Psicologia de la Societat Valenciana de Psicologia
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La formación continuada en Drogodependencias y las Revistas especializadas en Drogodependencias

2001

La formación continuada en drogodependencias, al igual que en otros campos de la actividad profesional, se encuentra en creciente desarrollo. Así mismo se está prestan¬do especial atención a los mecanismos de la acreditación de dichas actividades de formación continuada. En el presente trabajo se analiza, en primer lugar la información y documentación en drogodependencias, en segundo lugar la formación continuada en drogodependencias, y en tercer lugar el papel de las publicaciones científicas en este campo la formación continuada en drogodependencias.

:PSICOLOGÍA::Psicofarmacología [UNESCO]Acreditación Drogas Drogodependencias Formación continuada Revistas científicas:PSICOLOGÍA [UNESCO]UNESCO::PSICOLOGÍAUNESCO::PSICOLOGÍA::Psicofarmacología
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