Search results for "Rates"

showing 10 items of 1636 documents

Toward Pricing Financial Derivatives with an IBM Quantum Computer

2021

Pricing interest-rate financial derivatives is a major problem in finance, in which it is crucial to accurately reproduce the time evolution of interest rates. Several stochastic dynamics have been proposed in the literature to model either the instantaneous interest rate or the instantaneous forward rate. A successful approach to model the latter is the celebrated Heath-Jarrow-Morton framework, in which its dynamics is entirely specified by volatility factors. In its multifactor version, this model considers several noisy components to capture at best the dynamics of several time-maturing forward rates. However, as no general analytical solution is available, there is a trade-off between t…

Quantum Physicsterm structureCondensed Matter - Mesoscale and Nanoscale PhysicsComputer scienceinterest-ratesTime evolutionGeneral Physics and AstronomyFOS: Physical sciencesmacromolecular substancesalgorithms01 natural sciences010305 fluids & plasmasForward rate0103 physical sciencesPrincipal component analysisMesoscale and Nanoscale Physics (cond-mat.mes-hall)Statistical physicsIBM010306 general physicsQuantum Physics (quant-ph)QuantumQuantum computer
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DETERMINATION OF ALPHA(S) FOR B-QUARKS AT THE Z(0) RESONANCE

1993

The strong coupling constant for b quarks has been determined, and its flavour independence, as predicted by QCD, investigated. The analysis involved events with lepton candidates selected from approximately 356 000 hadronic decays of the Z0, collected by the DELPHI detector at LEP in 1990 and 199 1. A method based on a direct comparison of the three-jet fraction in a b enriched sample, selected by requiring leptons with large momenta and transverse momenta, to that of the entire hadronic sample, illustrated the significant effect of the b quark mass on the multi-jet cross section, and verified the flavour independence of the strong coupling constant to an accuracy of +/- 6%. A second proce…

QuarkCHARMED MESONSNuclear and High Energy PhysicsParticle physicsHEAVY FLAVOR PRODUCTIONElectron–positron annihilationHigh Energy Physics::LatticeFRAGMENTATION FUNCTIONSFlavourHadron01 natural sciencesBottom quarkNuclear physicsMONTE-CARLO0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsNuclear ExperimentZ DECAYSPhysicsCoupling constantQuantum chromodynamics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyJET PRODUCTION-RATESQCDSTRING MODELHigh Energy Physics::ExperimentFísica nuclearHEAVY FLAVOR PRODUCTION; JET PRODUCTION-RATES; E+ E ANNIHILATION; Z0 RESONANCE; FRAGMENTATION FUNCTIONS; CHARMED MESONS; STRING MODEL; MONTE-CARLO; Z DECAYS; QCDE+ E ANNIHILATIONZ0 RESONANCEParticle Physics - ExperimentLepton
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A measurement of αs from the scaling violation in e+e- annihilation

1997

The hadronic fragmentation functions of the various quark flavours and of gluons are measured in a study of the inclusive hadron production from $\zz$ decays with the DELPHI detector and are compared with the fragmentation functions measured elsewhere at energies between 14 GeV and 91 GeV. A large scaling violation is observed, which is used to extract the strong coupling constant from a fit using a numerical integration of the second order DGLAP evolution equations. The result is \begin{displaymath} \alpha_s(M_Z) = 0.124^{+0.006}_{-0.007}(exp)\pm 0.009 (theory) \end{displaymath} where the first error represents the experimental uncertainty and the second error is due to the factorization a…

QuarkNuclear and High Energy PhysicsParticle physicsE+E ANNIHILATIONElectron–positron annihilationFRAGMENTATION FUNCTIONSHadronHADRONIC-Z-DECAYS; JET PRODUCTION-RATES; E+E ANNIHILATION; FRAGMENTATION FUNCTIONS; ENERGY CORRELATIONS; PERTURBATIVE QCD; RESONANCE; EVOLUTION; PARTICLE; TESTS01 natural sciencesPartícules (Física nuclear)Nuclear physicsRenormalizationViolació CP (Física nuclear)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PERTURBATIVE QCD010306 general physicsNuclear ExperimentScalingDetectors de radiacióDELPHIPhysicsAnnihilation010308 nuclear & particles physicsJET PRODUCTION-RATESHigh Energy Physics::PhenomenologyPerturbative QCDRESONANCELARGE ELECTRON POSITRON COLLIDEREVOLUTIONDGLAPENERGY CORRELATIONSPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHITESTSPARTICLE PHYSICSHigh Energy Physics::ExperimentPARTICLEParticle Physics - ExperimentHADRONIC-Z-DECAYS
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DETERMINATION OF ALPHA-S FROM THE SCALING VIOLATION IN THE FRAGMENTATION FUNCTIONS IN E+E- ANNIHILATION

1993

A determination of the hadronic fragmentation functions of the Z0 boson is presented from a study of the inclusive hadron production with the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 less-than-or-equal-to Q2 less-than-or-equal-to 8312 GeV2 and x (= p(h)/E(beam)) > 0.08. A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: alpha(s)(M(Z)) = 0.118 +/- 0.005. The corresponding QCD scale for five quark flavours is: LAMBDA(MS)(5)BAR = 230 +/- 60 MeV.

QuarkNuclear and High Energy PhysicsParticle physicsHADRONIC-Z-DECAYS; JET PRODUCTION-RATES; LUND MONTE-CARLO; LEADING ORDER; QUANTUM CHROMODYNAMICS; PERTURBATIVE QCD; PARTON DENSITIES; RESONANCE; SCATTERING; PHYSICSLUND MONTE-CARLOHigh Energy Physics::LatticeElectron–positron annihilationHadronElementary particlePARTON DENSITIES01 natural sciencesNuclear physicsPHYSICS0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PERTURBATIVE QCDSCATTERING010306 general physicsNuclear ExperimentBosonQuantum chromodynamicsPhysicsCoupling constantAnnihilationQUANTUM CHROMODYNAMICS010308 nuclear & particles physicsJET PRODUCTION-RATESLEADING ORDERHigh Energy Physics::PhenomenologyRESONANCEFísica nuclearHigh Energy Physics::ExperimentParticle Physics - ExperimentHADRONIC-Z-DECAYSPHYSICS LETTERS B
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Vertebrate biological events and Pleistocene biogeographic history of Sicily

2009

Quaternary Vertebrates Bioevents SicilySettore GEO/01 - Paleontologia E Paleoecologia
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The X-ray determination of the amounts of the phases in samples of isotactic poly(propylene) quenched from the melt at different cooling rates

1997

A new procedure for the determination of the amounts of phases in samples of isotactic poly(propylene) quenched at different cooling rates from the same melted polymer is described. According to the procedure, all the patterns corresponding to the same quenching series are simultaneously analyzed for the amounts of phases so that reliable phase fractions relative to the different samples of the series are achieved. The analysis of the results points out that for increasing cooling rates above 30°C/s a remarkable increase of the mesomorphic phase settles, mainly at the expense of the α-monoclinic one.

Quenchingchemistry.chemical_classificationMaterials sciencePolymers and PlasticsStereochemistryOrganic ChemistryAnalytical chemistryX-rayCooling ratesPolymerCondensed Matter PhysicschemistryPhase (matter)TacticityPolymer chemistryMaterials ChemistryPhysical and Theoretical Chemistry
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Residential Exposure to Outdoor Air Pollution during Pregnancy and Anthropometric Measures at Birth in a Multicenter Cohort in Spain

2011

Background: A growing body of research suggests that prenatal exposure to air pollution may be harmful to fetal development. We assessed the association between exposure to air pollution during pregnancy and anthropometric measures at birth in four areas within the Spanish Children’s Health and Environment (INMA) mother and child cohort study. Methods: Exposure to ambient nitrogen dioxide (NO2) and benzene was estimated for the residence of each woman (n = 2,337) for each trimester and for the entire pregnancy. Outcomes included birth weight, length, and head circumference. The association between residential outdoor air pollution exposure and birth outcomes was assessed with linear regress…

Questionnaires:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Environmental Monitoring [Medical Subject Headings]Fetus -- CreixementPediatricsHealth Toxicology and MutagenesisEspañaair pollution:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Cohort StudiesbenzenebirthRecién NacidoPregnancyResidence CharacteristicsSurveys and Questionnaires:Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Environmental Pollutants::Air Pollutants [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Maternal Exposure [Medical Subject Headings]Birth WeightBody SizeMedicineProspective StudiesProspective cohort studyTamaño Corporal:Phenomena and Processes::Reproductive and Urinary Physiological Phenomena::Reproductive Physiological Phenomena::Reproductive Physiological Processes::Reproduction::Pregnancy [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Data Collection::Questionnaires [Medical Subject Headings]Vehicle Emissions:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]Dióxido de NitrógenoPeso al NacerAir PollutantsInhalation ExposureanthropometryAdultoDistribución Espacial de la Población:Chemicals and Drugs::Complex Mixtures::Vehicle Emissions [Medical Subject Headings]Adulto JovenEstudios ProspectivosAire -- Contaminació -- Efectes fisiològics -- EpidemiologiaExposición MaternaHumanos:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure::Inhalation Exposure [Medical Subject Headings]Maternal ExposureFemeninaInfant Small for Gestational AgeCohort:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight::Infant Small for Gestational Age [Medical Subject Headings]:Chemicals and Drugs::Inorganic Chemicals::Nitrogen Compounds::Nitrogen Oxides [Medical Subject Headings]Emisiones de VehículosFemalepregnancyEnvironmental MonitoringCohort studyAdultmedicine.medical_specialty:Named Groups::Persons::Age Groups::Adult::Young Adult [Medical Subject Headings]nitrogen dioxideEmbarazoBirth weightMonitoreo del AmbienteExposición por Inhalación:Analytical Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Physical Examination::Body Constitution::Body Weights and Measures::Body Size [Medical Subject Headings]:Named Groups::Persons::Age Groups::Infant::Infant Newborn [Medical Subject Headings]Young AdultRecién Nacido Pequeño para la Edad Gestacional:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]HumansPregnancybusiness.industryResearchBencenoInfant NewbornPublic Health Environmental and Occupational Healthbirth weightAnthropometrymedicine.disease:Health Care::Environment and Public Health::Public Health::Epidemiologic Measurements::Demography::Residence Characteristics [Medical Subject Headings]Confidence interval:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Benzene [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies::Prospective Studies [Medical Subject Headings]:Check Tags::Female [Medical Subject Headings]Spain:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies [Medical Subject Headings]Contaminantes del AireSmall for gestational ageEstudios de CohortesbusinessDemographyEnvironmental Health Perspectives
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Low physical activity and its association with diabetes and other cardiovascular risk factors: a nationwide, population-based study

2016

Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM; ISCIII Ministerio de Ciencia e Innovacion); Ministerio de Sanidad y Consumo; Spanish Diabetes Society (SED)

QuestionnairesMaleDislipidemiasCross-sectional studyEstudios transversalesEspañaObesidadÍndice de masa corporalBiochemistryBody Mass Index0302 clinical medicineEndocrinology:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Musculoskeletal Physiological Phenomena::Musculoskeletal Physiological Processes::Movement::Motor Activity [Medical Subject Headings]Public and Occupational Healthlcsh:Science:Phenomena and Processes::Physiological Phenomena::Nutritional Physiological Phenomena::Diet::Diet Mediterranean [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Morbidity::Prevalence [Medical Subject Headings]:Chemicals and Drugs::Lipids::Glycerides::Triglycerides [Medical Subject Headings]:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]Aged 80 and overDiabetis:Diseases::Nutritional and Metabolic Diseases::Metabolic Diseases::Lipid Metabolism Disorders::Dyslipidemias [Medical Subject Headings]:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight::Overweight::Obesity::Obesity Abdominal [Medical Subject Headings]Cardiovascular DiseasesObesitatEnfermedades cardiovascularesFactores de riesgomedicine.medical_specialtyEndocrine Disorders:Chemicals and Drugs::Lipids::Lipoproteins::Lipoproteins HDL::Cholesterol HDL [Medical Subject Headings]:Psychiatry and Psychology::Behavior and Behavior Mechanisms::Behavior::Habits::Smoking [Medical Subject Headings]QüestionarisTriglicéridosExercici -- Aspectes sanitaris03 medical and health sciencesDiabetes MellitusHumans:Diseases::Cardiovascular Diseases [Medical Subject Headings]ExerciseAgedSurvey ResearchMalalties cardiovascularsPreventionlcsh:REnfermedad crónicaBiology and Life SciencesPhysical ActivityInsulin-resistancemedicine.diseaseActividad motoraObesityLipid metabolismCross-Sectional StudiesDyslipidemiaAdherenceGlucosalcsh:QBody mass indexDyslipidemiaDemography:Psychiatry and Psychology::Behavior and Behavior Mechanisms::Psychology Social::Life Style::Sedentary Lifestyle [Medical Subject Headings]PhysiologyPhysical fitnessSistema cardiovascular -- Malalties:Chemicals and Drugs::Carbohydrates::Monosaccharides::Hexoses::Glucose [Medical Subject Headings]lcsh:Medicine:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight::Overweight::Obesity [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]Obesidad abdominalGeographical LocationsGlucose MetabolismRisk FactorsHábito de fumarMedicine and Health SciencesPrevalence030212 general & internal medicinePrediabetes:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Surveys and Questionnaires [Medical Subject Headings]Multidisciplinary:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Chronic Disease [Medical Subject Headings]DiabetesMiddle Aged:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional Studies [Medical Subject Headings]EuropeEncuestas y cuestionariosPhysiological ParametersResearch DesignCarbohydrate MetabolismFemaleResearch ArticleAdultAdolescent030209 endocrinology & metabolismVida sedentariaResearch and Analysis MethodsHDL-colesterolYoung AdultSex FactorsDiabetes mellitusmedicineAdultsObesityEspanya:Diseases::Endocrine System Diseases::Diabetes Mellitus::Prediabetic State [Medical Subject Headings]Sedentary lifestylebusiness.industryEstado prediabéticoBody WeightPhysical fitnessDieta mediterráneaMetabolisme dels lípidsDietMetabolismSpainMetabolic DisordersPeople and PlacesPhysical therapySedentary BehaviorbusinessPrevalenciaCondició física
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Specific Inhibition of Phorbol Ester-stimulated Phospholipase D by Clostridium sordellii Lethal Toxin and Clostridium difficile Toxin B-1470 in HEK-2…

1998

Activation of m3 muscarinic acetylcholine receptor (mAChR), stably expressed in human embryonic kidney (HEK)-293 cells, leads to phospholipase D (PLD) stimulation, a process apparently involving Rho GTPases, as shown by studies with Clostridium botulinum C3 exoenzyme and Clostridium difficile toxin B (TcdB). Direct activation of protein kinase C (PKC) by phorbol esters, such as phorbol 12-myristate 13-acetate (PMA), also induces PLD stimulation, which is additive to the mAChR action and which is only poorly sensitive to inactivation of Rho proteins by TcdB. To study whether Ras-like GTPases are involved in PLD regulation, we studied the effects of the TcdB variant TcdB-1470 and Clostridium …

RALBG proteinPhospholipase DRAC1Clostridium difficile toxin BCell BiologyBiologyBiochemistryMolecular biologyRALAenzymes and coenzymes (carbohydrates)chemistry.chemical_compoundchemistryPhorbollipids (amino acids peptides and proteins)Molecular BiologyProtein kinase CJournal of Biological Chemistry
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The Enterotoxin from Clostridium difficile (ToxA) Monoglucosylates the Rho Proteins

1995

The enterotoxin from Clostridium difficile (ToxA) is one of the causative agents of the antibiotic-associated pseudomembranous colitis. In cultured monolayer cells ToxA exhibits cytotoxic activity to induce disassembly of the actin cytoskeleton, which is accompanied by morphological changes. ToxA-induced depolymerization of actin filaments is correlated with a decrease in the ADP-ribosylation of the low molecular mass GTP-binding Rho proteins (Just, I., Selzer, J., von Eichel-Streiber, C., and Aktories, K. (1995) J. Clin. Invest. 95, 1026-1031). Here we report on the identification of the ToxA-induced modification of Rho. Applying electrospray mass spectrometry, the mass of the modification…

RHOAGlycoside HydrolasesBacterial ToxinsClostridium difficile toxin ARAC1macromolecular substancesEnterotoxinBiochemistrySubstrate SpecificityEnterotoxinsGTP-Binding ProteinsTumor Cells CulturedAmino AcidsMolecular BiologyActinbiologyMolecular massClostridioides difficileCell BiologyPseudomembranous colitisActin cytoskeletonMolecular biologycarbohydrates (lipids)GlucoseBiochemistrybiology.proteinrhoA GTP-Binding ProteinJournal of Biological Chemistry
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