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showing 10 items of 3931 documents

The mediterranean diet and menopausal health: An EMAS position statement

2020

Introduction: Globally, 985 million women are aged 50 and over, leading to increasing concerns about chronic conditions such as cardiovascular disease, osteoporosis, dementia, and cognitive decline, which can adversely affect quality of life and independent living.Aim: To evaluate the evidence from observational studies and randomized trials on the effects of the Mediterranean diet on short- and long-term menopausal health: estrogen deficiency symptoms, cardiovascular disease, osteoporosis, cognitive and mental health, breast cancer, and all-cause mortality.Materials and methods: Literature review and consensus of expert opinion.Summary recommendations: The Mediterranean diet is a non-restr…

ConsensusMediterranean dietOsteoporosisBreast NeoplasmsDiseaseDiet MediterraneanGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciences0302 clinical medicineBreast cancerEnvironmental healthmedicineHumansDementia030212 general & internal medicineCognitive declineDepression (differential diagnoses)Randomized Controlled Trials as Topic030219 obstetrics & reproductive medicineMediterranean Dietbusiness.industryObstetrics and GynecologyNon-communicable diseasemedicine.diseaseObservational Studies as TopicNon-Communicable DiseaseMental HealthCardiovascular DiseasesHealthOsteoporosisWomen's HealthDementiaFemaleMenopausebusiness
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Patterns of genetic and phenotypic variation in Iris haynei and I. atrofusca (Iris sect. Oncocyclus = the royal irises) along an ecogeographical grad…

2002

Iris haynei and I. atrofusca are two closely related narrow endemics distributed vicariously along an ecogeographical north-south gradient in Israel and the West Bank. To obtain baseline information of the taxonomic status, conservation and population history of these taxa, we investigated patterns of phenotypic variation and the partitioning of genetic variation within and among populations using dominant random amplified polymorphic DNA (RAPD) markers. Multivariate (principal components analysis) and taxonomic distance analyses based on morphometric traits from eight populations revealed no unambiguous separation into two distinct groups. Results of genetic analyses for nine populations d…

Conservation geneticsGeneticsGenetic diversityeducation.field_of_studyConservation of Natural ResourcesEcologyPopulation sizePopulationGenetic VariationDNAIncipient speciationBiologyPlantsRandom Amplified Polymorphic DNA TechniquePhenotypeEvolutionary biologyGenetic variationMultivariate AnalysisGeneticsBiological dispersalIsraeleducationEcology Evolution Behavior and SystematicsPhylogenyIsolation by distanceMolecular ecology
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Further Investigation of Harmonic Priming in Long Contexts Using Musical Timbre as Surface Marker to Control for Temporal Effects

2004

Harmonic priming studies have reported facilitated processing for chords that are harmonically related to the prime context. Responses to the target (the last chord of an 8-chord sequence) were faster and more accurate when the target was strongly related, i.e., a tonic chord, to the preceding prime context than when it was less related, i.e., a subdominant chord. Results have been interpreted in terms of musical expectations and processing speed: the prime allows listeners to develop expectations for future events which lead to facilitated processing of the most strongly expected event. The present experiment investigated an alternative hypothesis suggesting that the harmonic structure of…

ConsonantSubdominantTime Factorsmedia_common.quotation_subjectExperimental and Cognitive PsychologyMusical050105 experimental psychologyJudgmentRandom Allocation03 medical and health sciences0302 clinical medicineSurveys and QuestionnairesReaction TimeHumans0501 psychology and cognitive sciencesPitch Perceptionmedia_commonCommunicationbusiness.industry05 social sciences030229 sport sciencesConsonance and dissonanceAmbiguitySensory SystemsChord (music)PsychologybusinessTimbrePriming (psychology)MusicCognitive psychologyPerceptual and Motor Skills
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Unitary Space–Time Constellation Design Based on the Chernoff Bound of the Pairwise Error Probability

2008

Unitary space-time constellation design is considered for noncoherent multiple-antenna communications, where neither the transmitter nor the receiver knows the fading coefficients of the channel. By employing the Clarke's subdifferential theorem of the sum of the kappa largest singular values of a unitary matrix, we present a numerical optimization procedure for finding unitary space-time signal constellations of any dimension. The Chernoff bound of the pairwise error probability is used directly as a design criterion. The constellations are found by performing gradient descent search on a family ldquosurrogaterdquo functions that converge to the maximum pairwise error probability. The comp…

Constellation diagramUnitary matrixLibrary and Information SciencesComputer Science ApplicationsCombinatoricsChannel capacityChernoff boundGradient descentAlgorithmRandom variableDecoding methodsPairwise error probabilityComputer Science::Information TheoryInformation SystemsMathematicsIEEE Transactions on Information Theory
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Random Variables Recorded Under Mutually Exclusive Conditions: Contextuality-by-Default

2014

We present general principles underlying analysis of the dependence of random variables (outputs) on deterministic conditions (inputs). Random outputs recorded under mutually exclusive input values are labeled by these values and considered stochastically unrelated, possessing no joint distribution. An input that does not directly influence an output creates a context for the latter. Any constraint imposed on the dependence of random outputs on inputs can be characterized by considering all possible couplings (joint distributions) imposed on stochastically unrelated outputs. The target application of these principles is a quantum mechanical system of entangled particles, with directions of …

Constraint (information theory)SpinsJoint probability distributionControl theoryContext (language use)Statistical physicsMutually exclusive eventsRandom variableKochen–Specker theoremMathematicsSpin-½
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Effects of Walnut Consumption for 2 Years on Lipoprotein Subclasses Among Healthy Elders

2021

Consumption (economics)medicine.medical_specialtyWalnutsbusiness.industryCholesterolMEDLINEDietlaw.inventionLipoproteins LDLchemistry.chemical_compoundCardiovascular diseasesCholesterolRandomized controlled trialchemistrylawPhysiology (medical)Internal medicinemedicineCardiology and Cardiovascular MedicinebusinessLipoproteinCirculation
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Uncertainty quantification analysis of the biological Gompertz model subject to random fluctuations in all its parameters

2020

[EN] In spite of its simple formulation via a nonlinear differential equation, the Gompertz model has been widely applied to describe the dynamics of biological and biophysical parts of complex systems (growth of living organisms, number of bacteria, volume of infected cells, etc.). Its parameters or coefficients and the initial condition represent biological quantities (usually, rates and number of individual/particles, respectively) whose nature is random rather than deterministic. In this paper, we present a complete uncertainty quantification analysis of the randomized Gomperz model via the computation of an explicit expression to the first probability density function of its solution s…

Continuity partial differential equationStationary distributionDynamical systems theoryStochastic processGeneral MathematicsApplied MathematicsGompertz functionProbabilistic logicGeneral Physics and AstronomyStatistical and Nonlinear PhysicsProbability density function01 natural sciences010305 fluids & plasmasComplex systems with uncertainties0103 physical sciencesLiouville-Gibbs theoremApplied mathematicsInitial value problemUncertainty quantificationRandom nonlinear differential equationMATEMATICA APLICADA010301 acousticsMathematicsRandomized Gompertz model
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Efficient simulation of the random-cluster model

2013

The simulation of spin models close to critical points of continuous phase transitions is heavily impeded by the occurrence of critical slowing down. A number of cluster algorithms, usually based on the Fortuin-Kasteleyn representation of the Potts model, and suitable generalizations for continuous-spin models have been used to increase simulation efficiency. The first algorithm making use of this representation, suggested by Sweeny in 1983, has not found widespread adoption due to problems in its implementation. However, it has been recently shown that it is indeed more efficient in reducing critical slowing down than the more well-known algorithm due to Swendsen and Wang. Here, we present…

Continuous phase modulationRandom clusterStatistical Mechanics (cond-mat.stat-mech)Critical phenomenaMonte Carlo methodHigh Energy Physics - Lattice (hep-lat)FOS: Physical sciencesComputational Physics (physics.comp-ph)CombinatoricsHigh Energy Physics - LatticeCluster (physics)Representation (mathematics)Physics - Computational PhysicsAlgorithmCondensed Matter - Statistical MechanicsMathematicsPotts model
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A novel strategy for solving the stochastic point location problem using a hierarchical searching scheme

2014

Stochastic point location (SPL) deals with the problem of a learning mechanism (LM) determining the optimal point on the line when the only input it receives are stochastic signals about the direction in which it should move. One can differentiate the SPL from the traditional class of optimization problems by the fact that the former considers the case where the directional information, for example, as inferred from an Oracle (which possibly computes the derivatives), suffices to achieve the optimization-without actually explicitly computing any derivatives. The SPL can be described in terms of a LM (algorithm) attempting to locate a point on a line. The LM interacts with a random environme…

Continuous-time stochastic processMathematical optimizationOptimization problemControlled random walkTime reversibilityDiscretized learning02 engineering and technologyTime reversibilityLearning automataStochastic-point problem0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringStochastic neural networkMathematicsBinary treeLearning automata020206 networking & telecommunicationsRandom walkComputer Science ApplicationsHuman-Computer InteractionControl and Systems Engineering020201 artificial intelligence & image processingStochastic optimizationSoftwareInformation Systems
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R Code for Hausdorff and Simplex Dispersion Orderings in the 2D Case

2010

This paper proposes a software implementation using R of the Hausdorff and simplex dispersion orderings. A copy can be downloaded from http://www.uv.es/~ayala/software/fun-disp.R . The paper provides some examples using the functions exactHausdorff for the Hausdorff dispersion ordering and the function simplex for the simplex dispersion orderings. Some auxiliary functions are commented too.

Convex hullDiscrete mathematicsSimplexMultivariate random variableMathematicsofComputing_NUMERICALANALYSISHausdorff spaceAuxiliary functionFunction (mathematics)CombinatoricsTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITYMathematics::Metric GeometryHausdorff measureStatistical dispersionMathematics
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