Search results for "SETS"

showing 10 items of 592 documents

A fuzzification of the category of M-valued L-topological spaces

2004

[EN] A fuzzy category is a certain superstructure over an ordinary category in which ”potential” objects and ”potential” morphisms could be such to a certain degree. The aim of this paper is to introduce a fuzzy category FTOP(L,M) extending the category TOP(L,M) of M-valued L- topological spaces which in its turn is an extension of the category TOP(L) of L-fuzzy topological spaces in Kubiak-Sostak’s sense. Basic properties of the fuzzy category FTOP(L,M) and its objects are studied.

Pure mathematicsFunctorHomotopy categoryDiagram (category theory)Mathematics::General Mathematicslcsh:Mathematicslcsh:QA299.6-433lcsh:Analysislcsh:QA1-939GL-monoid(LM)-fuzzy topologyPower-set operators(LM)-interior operatorMathematics::Category TheoryCategory of topological spacesBiproductUniversal propertyGeometry and TopologyM-valued L-topologyCategory of setsL-fuzzy category(LM)-neighborhood systemMathematicsInitial and terminal objectsApplied General Topology
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A Laplace type problem for a lattice with cell composed by two trapezius and a triangle

2014

In the previous papers, [1], [2], [3], [4], [5], [6], [7], [8], [9] and [10] the authors study some Laplace problem for different lattices. In this paper we determine the probability that a random segment of constant length intersects a side of lattice with cell represented in fig.1

Pure mathematicsLaplace transformSettore MAT/05 - Analisi MatematicaApplied MathematicsLattice (order)GeometryGeometric Probability stochastic geometry random sets random convex sets and integral geometryMathematicsApplied Mathematical Sciences
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Gibbs states, algebraic dynamics and generalized Riesz systems

2020

In PT-quantum mechanics the generator of the dynamics of a physical system is not necessarily a self-adjoint Hamiltonian. It is now clear that this choice does not prevent to get a unitary time evolution and a real spectrum of the Hamiltonian, even if, most of the times, one is forced to deal with biorthogonal sets rather than with on orthonormal basis of eigenvectors. In this paper we consider some extended versions of the Heisenberg algebraic dynamics and we relate this analysis to some generalized version of Gibbs states and to their related KMS-like conditions. We also discuss some preliminary aspects of the Tomita-Takesaki theory in our context.

Pure mathematicsPhysical systemFOS: Physical sciencesBiorthogonal sets of vectors01 natural sciencesUnitary statesymbols.namesakeSettore MAT/05 - Analisi Matematica0103 physical sciencesFOS: MathematicsOrthonormal basis0101 mathematicsAlgebraic numberOperator Algebras (math.OA)Eigenvalues and eigenvectorsMathematical PhysicsMathematics010308 nuclear & particles physicsMathematics::Operator AlgebrasApplied Mathematics010102 general mathematicsTime evolutionMathematics - Operator AlgebrasTomita–Takesaki theoryMathematical Physics (math-ph)Gibbs statesNon-Hermitian HamiltoniansComputational MathematicsComputational Theory and MathematicsBiorthogonal systemsymbolsHamiltonian (quantum mechanics)
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Frames and representing systems in Fréchet spaces and their duals

2014

[EN] Frames and Bessel sequences in Fr\'echet spaces and their duals are defined and studied. Their relation with Schauder frames and representing systems is analyzed. The abstract results presented here, when applied to concrete spaces of analytic functions, give many examples and consequences about sampling sets and Dirichlet series expansions.

Pure mathematicsRelation (database)(LB)-spacesrepresenting systems010103 numerical & computational mathematics01 natural sciencesMathematical research46A04 42C15 46A13 46E10Fréchet spacesweakly sufficient setssymbols.namesake$(LB)$-spacesDIDACTICA DE LA MATEMATICA0101 mathematics46A1346E10Dirichlet seriesMathematicsAlgebra and Number Theory42C15Group (mathematics)010102 general mathematicsSampling (statistics)Representing systemsMathematics - Functional AnalysisFramesframessymbolsDual polyhedronWeakly sufficient setsFrechet spacesMATEMATICA APLICADAAnalysisBessel function46A04Analytic function
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A Note on States and Traces from Biorthogonal Sets

2019

In this paper, following Bagarello, Trapani, and myself, we generalize the Gibbs states and their related KMS-like conditions. We have assumed that H 0 , H are closed and, at least, densely defined, without giving information on the domain of these operators. The problem we address in this paper is therefore to find a dense domain D that allows us to generalize the states of Gibbs and take them in their natural environment i.e., defined in L &dagger

Pure mathematicsnon-Hermitian HamiltoniansGibbs statePhysics and Astronomy (miscellaneous)lcsh:MathematicsGeneral Mathematicsbiorthogonal sets of vector010102 general mathematicsGibbs stateslcsh:QA1-93901 natural sciencesDomain (software engineering)TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGESSettore MAT/05 - Analisi MatematicaChemistry (miscellaneous)Biorthogonal system0103 physical sciencesComputer Science (miscellaneous)0101 mathematics010306 general physicsMathematicsSymmetry
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Valoración de un programa piloto de prescripción de actividad física en atención primaria en la Comunitat Valenciana

2021

Resumen: Objetivo: Valorar el proceso de prescripción y la mejora de la autoestima y la calidad de vida relacionada con la salud en un estudio piloto de prescripción de activos de actividad física durante 3 meses. Método: Estudio cuasiexperimental antes-después sin grupo control, para la valoración del proyecto piloto (noviembre de 2017 y mayo de 2018) del programa Conecta Actius per a la Salut en seis centros de salud de la Comunitat Valenciana. Quienes aceptaron participar cumplimentaron un cuestionario con datos sociales, la escala de autoestima de Rosemberg y el cuestionario de calidad de vida EQ-5D al inicio (T0) y a los 3 meses (T1). Se realizó un análisis descriptivo por sexo, nivel …

Quality of lifePilot phasePopulationPhysical activityHealth benefitsSocial prescriptionHealth perceptionValencian community03 medical and health sciences0302 clinical medicineHealth assetsMedicine030212 general & internal medicineeducationeducation.field_of_studyPhysical activitybusiness.industry030503 health policy & servicesPublic Health Environmental and Occupational HealthSelf-steemHealthPublic aspects of medicineRA1-12700305 other medical sciencebusinessHumanitiesGaceta Sanitaria
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Analysis of the railway network operations safety, with of different obstacles along the route, by the study of Buffon-Laplace type problems: the cas…

2016

In this paper we use an approach based on a Buffon-Laplace type problem for an irregular hexagonal lattice and obstacles to study some problems about analysis of the railway network operations safety in the presence of different obstacles on the route.

Random setsRandom convex sets and integral geometryLaplace transformSettore MAT/05 - Analisi MatematicaComputer scienceHexagonal crystal systemApplied MathematicsStochastic geometrySettore MAT/03 - GeometriaType (model theory)TopologyGeometric ProbabilityNetwork operations centerApplied Mathematical Sciences
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The Ability of Variant Peptides to Reverse the Nonresponsiveness of T Lymphocytes to the Wild-Type Sequence p53264–272 Epitope

2002

Abstract Recently, we observed that CTL specific for the wild-type (wt) sequence p53264–272 peptide could only be expanded ex vivo from PBMC of a subset of the HLA-A2.1+ normal donors or cancer patients tested. Surprisingly, the tumors of the responsive patients expressed normal levels of wt p53 and could be considered unlikely to present this epitope. In contrast, tumors of nonresponsive patients accumulated mutant p53 and were more likely to present this epitope. We sought to increase the responsive rate to the wt p53264–272 peptide of PBMC obtained from normal donors and patients by identifying more immunogenic variants of this peptide. Two such variants were generated by amino acid exch…

Receptors Antigen T-Cell alpha-betaT cellImmunologyAntigen presentationEpitopes T-LymphocytePeptideBiologyLymphocyte ActivationEpitopeT-Lymphocyte SubsetsHLA-A2 AntigenImmune ToleranceTumor Cells CulturedmedicineHumansImmunology and AllergyGene Rearrangement beta-Chain T-Cell Antigen ReceptorCells CulturedMouth neoplasmchemistry.chemical_classificationAntigen PresentationT-cell receptorWild typeCytotoxicity Tests ImmunologicVirologyPeptide FragmentsCTL*medicine.anatomical_structureAmino Acid SubstitutionchemistryCarcinoma Squamous CellLeukocytes MononuclearMouth NeoplasmsTumor Suppressor Protein p53Protein BindingT-Lymphocytes CytotoxicThe Journal of Immunology
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Lymphocyte subset reference values in peripheral blood: European survey

1992

Reference valuesImmunologyCell BiologyGeneral MedicineBiologyPeripheral bloodLymphocyte subsetsBiology of the Cell
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Large scale preparation of human MHC class II+ integrin beta(1)+ Tregs.

2010

Abstract The human CD4 + CD25 + FoxP3 + regulatory T cell population (Tregs) contains both MHC class II + and MHC class II − cells. MHC class II + Tregs belong to the integrin α 4 β 1 + subpopulation and exclusively execute contact-dependent suppressive activity. Here we present a method optimized for isolation of these MHC class II expressing Tregs from large leukaphereses products using magnetic microbeads that achieves a reproducible purity of more than 90% and enables the use of this small-sized Treg population in pre-clinical application and basic research.

Regulatory T cellImmunologyPopulationIntegrinchemical and pharmacologic phenomenaIntegrin alpha4beta1T-Lymphocytes RegulatoryT-Lymphocyte SubsetsmedicineImmune ToleranceImmunology and AllergyHumansIL-2 receptorLeukapheresiseducationCells CulturedMHC class IIeducation.field_of_studybiologyImmunomagnetic SeparationHistocompatibility Antigens Class IIInterleukin-2 Receptor alpha SubunitFOXP3hemic and immune systemsForkhead Transcription FactorsT lymphocyteMHC restrictionFlow CytometryCell biologyHigh-Throughput Screening Assaysmedicine.anatomical_structureImmunologyCD4 Antigensbiology.proteinJournal of immunological methods
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