Search results for "value"

showing 10 items of 5321 documents

On singular integral and martingale transforms

2007

Linear equivalences of norms of vector-valued singular integral operators and vector-valued martingale transforms are studied. In particular, it is shown that the UMD(p)-constant of a Banach space X equals the norm of the real (or the imaginary) part of the Beurling-Ahlfors singular integral operator, acting on the X-valued L^p-space on the plane. Moreover, replacing equality by a linear equivalence, this is found to be the typical property of even multipliers. A corresponding result for odd multipliers and the Hilbert transform is given.

46B09General Mathematics46B20 (Secondary)Banach space42B15 (Primary) 42B2001 natural sciencesUpper and lower bounds010104 statistics & probabilitysymbols.namesakeCorollary60G46; 42B15 (Primary) 42B20; 46B09; 46B20 (Secondary)Classical Analysis and ODEs (math.CA)FOS: Mathematics60G460101 mathematicsMathematicsNormed vector spaceDiscrete mathematicsApplied MathematicsProbability (math.PR)010102 general mathematicsSingular integralSingular valueMathematics - Classical Analysis and ODEssymbolsHilbert transformMartingale (probability theory)Mathematics - ProbabilityTransactions of the American Mathematical Society
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Electrosynthetic screening and modern optimization strategies for electrosynthesis of highly value-added products

2021

540 Chemistry and allied sciences010405 organic chemistryComputer science02 engineering and technology021001 nanoscience & nanotechnology010402 general chemistryElectrosynthesis01 natural sciencesCatalysis0104 chemical sciencesCheminformatics540 ChemieElectrochemistryBiochemical engineeringValue added0210 nano-technology
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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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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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Un cuento de robots : La hija cibernética de descartes

2021

French philosopher René Descartes is today valued as a forerunner of the studies of human mind, artificial intelligence and robotic systems. Throughout his work there are large references to automata and the possibility of artificial life, as well as an assessment of the differences between rational behavior of human beings and the purely mechanical of animals and automata. In addition to these references, there is a fable about the creation by the philosopher of an automaton that replicated his deceased daughter Francine, a story that is well known among the French and Anglo-Saxon specialists, but not so much in the Spanish ones, which is what settles this short work

:CIENCIAS JURÍDICAS [UNESCO]which is what settles this short work René DescartesFrancine Descartesinteligencia artificialautómatasautomataas well as an assessment of the differences between rational behavior of human beings and the purely mechanical of animals and automata. In addition to these referencesthere is a fable about the creation by the philosopher of an automaton that replicated his deceased daughter Francinebut not so much in the Spanish onesartificial intelligence2070-8157 22082 Revista Boliviana de Derecho 565487 2021 31 7730064 Un cuento de robots La hija cibernética de descartes Lacruz MantecónMiguel L. French philosopher René Descartes is today valued as a forerunner of the studies of human mindartificial intelligence and robotic systems. Throughout his work there are large references to automata and the possibility of artificial lifea story that is well known among the French and Anglo-Saxon specialistsRené DescartesUNESCO::CIENCIAS JURÍDICASrobots. 422 441robots
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Roadmap on optical rogue waves and extreme events

2016

Nail Akhmediev et al. ; 38 págs.; 28 figs.

:Ciències de la visió::Òptica física [Àrees temàtiques de la UPC]extreme eventsNonlinear opticsFreak-wavesProcess (engineering)Subject (philosophy)Supercontinuum generationPeregrine soliton01 natural sciences010309 opticsOptics0103 physical sciencesZero-dispersion wavelength[NLIN]Nonlinear Sciences [physics]Rogue wave010306 general physicsModulation instabilityComputingMilieux_MISCELLANEOUSPhysicsÒptica no lineal:Física [Àrees temàtiques de la UPC]Nonlinear schrodinger-equationbusiness.industryGinzburg-Landau equationnonlinear opticsRogue wavesOptical rogue wavesrogue wavesextreme events; nonlinear optics; rogue wavesExtreme eventsValue statisticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsVariety (cybernetics)Photonic crystal fibersWork (electrical)Noise-like pulsesPeregrine solitonbusinessScientific terminology
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Anàlisi psicosocial del consum alcohòlic entre els adolescents

2006

En aquest article són estudiats 1.100 adolescents d'ambdós gèneres, escolaritzats a centres educatius de la ciutat de València, amb la fi nalitat de determinar les relacions existents entre el consum de begudes alcohòliques i una sèrie de variables psicosocials hipotèticament vinculades a aquest consum: socialització familiar, actituds envers l'alcohol, valors socials, informació sobre els efectes de l'alcohol i consum en els grups d'infl uència. En funció dels resultats obtinguts, els subjectes van ser assignats a tres clusters de consum alcohòlic: abstemis, consumidors moderats i consumidors abusius. S'hi va aplicar una anàlisi discriminant, els resultats de la qual indiquen que el consum…

:PSICOLOGÍA [UNESCO]UNESCO::PSICOLOGÍAAdolescents alcohol drogues valors socials Adolescents alcohol drugs social values. Artículo
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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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Proximate Composition and Nutritional Value of Three Macroalgae: Ascophyllum nodosum, Fucus vesiculosus and Bifurcaria bifurcata

2017

Proximate composition (moisture, protein, lipid and ash content) and nutritional value (fatty acid, amino acid and mineral profile) of three macroalgae (Ascophyllum nodosum, Fucus vesiculosus and Bifurcaria bifurcate) were studied. Chemical composition was significantly (p &lt; 0.001) different among the three seaweeds. In this regard, the B. bifurcata presented the highest fat content (6.54% of dry matter); whereas, F. vesiculosus showed the highest protein level (12.99% dry matter). Regarding fatty acid content, the polyunsaturated fatty acids (PUFAs) were the most abundant followed by saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs). On the other hand, the three seawe…

<i>Ascophyllum nodosum</i>; <i>Fucus vesiculosus</i>; <i>Bifurcaria bifurcate</i>; seaweeds; fatty acid profile; amino acid content; minerals; chemical compositionBifurcaria bifurcatePharmaceutical ScienceFucus vesiculosusPhaeophytaArticleFatty Acids Monounsaturatedfatty acid profile0404 agricultural biotechnologyDrug DiscoveryBotanychemical compositionDry matterFood scienceAmino Acidslcsh:QH301-705.5Pharmacology Toxicology and Pharmaceutics (miscellaneous)Ascophyllumchemistry.chemical_classificationbiologyAscophyllum nodosumFatty AcidsFucus vesiculosusProteinsFatty acid04 agricultural and veterinary sciencesmineralsSeaweedbiology.organism_classificationLipids040401 food scienceBifurcariaAmino acidseaweedslcsh:Biology (General)chemistryamino acid contentFucusFatty Acids UnsaturatedFucusNutritive ValueAscophyllumPolyunsaturated fatty acidMarine Drugs
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The relationship between organizational interdependency and additionality obtained from innovation ecosystem participation

2019

Abstract Despite the increased interest in innovation ecosystems, few studies have assessed the extent to which the proclaimed benefits from participating in such ecosystems also occur, and under which circumstances they do occur. Uniting the literature on organizational interdependence and social exchange theory, we assess the behavioral and output additionality obtained by innovation ecosystem participants. In doing so, we build upon a sample of 473 innovative Finnish companies, of which 312 participated in an innovation ecosystem. We find a significantly positive relationship between organizational interdependence and output additionality, and find that this relationship is mediated by b…

ALLIANCE FORMATIONPublic AdministrationGeography Planning and DevelopmentSample (statistics)Management Monitoring Policy and LawSOCIAL-EXCHANGE THEORYCOLLABORATIONBusiness and Economicsorganizational interdependenceVALUE CREATIONAdditionalityadditionalityBOARD COMPOSITIONSUPPORTDEVELOPMENT SUBSIDIESEcosystemSTRATEGYValue creationPublic economicsRESEARCH-AND-DEVELOPMENTPOLICYinnovation ecosystemsocial exchange theoryComputingMilieux_GENERALSocial exchange theoryEarth and Environmental SciencesPositive relationshipBusiness
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