Search results for "Density fluctuations"

showing 3 items of 3 documents

Microevolution of bank voles (Myodes glareolus) at neutral and immune-related genes during multiannual dynamic cycles: consequences for Puumala hanta…

2017

ABSTRACTUnderstanding how host dynamics, including variations of population size and dispersal, may affect the epidemiology of infectious diseases through ecological and evolutionary processes is an active research area. Here we focus on a bank vole (Myodes glareolus) metapopulation surveyed in Finland between 2005 and 2009. Bank vole is the reservoir of Puumala hantavirus (PUUV), the agent of nephropathia epidemica (NE, a mild form of hemorrhagic fever with renal symptom) in humans.M glareoluspopulations experience multiannual density fluctuations that may influence the level of genetic diversity maintained in bank voles, PUUV prevalence and NE occurrence. We examine bank vole metapopulati…

0301 basic medicineMaleMyxovirus Resistance Proteins0106 biological sciencesSELECTIONPopulation geneticsPopulation DynamicsGene ExpressionPopulation geneticsNATURAL-POPULATIONPuumala virus01 natural sciencesRodent DiseasesNephropathia epidemicaFinlandGeneticsMolecular Epidemiology0303 health scienceseducation.field_of_studyRodentArvicolinaeMicroevolutionBiological EvolutionBank voleInfectious DiseasesMHC DIVERSITYHemorrhagic Fever with Renal SyndromeHost-Pathogen Interactions[SDV.IMM]Life Sciences [q-bio]/ImmunologyFemaleDisease SusceptibilityDensity fluctuationsMicrobiology (medical)Gene FlowPopulationMetapopulationBiologyMicrobiology010603 evolutionary biology03 medical and health sciencesGenetic driftGeneticsmedicineImmunogeneticsAnimalsHumansPOPULATION-STRUCTUREAdaptationeducationMolecular BiologyEcology Evolution Behavior and SystematicsDisease Reservoirs030304 developmental biologyTOLL-LIKE RECEPTORSHost-pathogen interactionPolymorphism Genetic[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]MX2 PROTEINGenetic DriftNECROSIS-FACTOR-ALPHADENSITY-FLUCTUATIONSmedicine.diseasebiology.organism_classificationEUROPEAN ROE DEERToll-Like Receptor 4030104 developmental biologyToll-Like Receptor 7Evolutionary biology3121 General medicine internal medicine and other clinical medicineVoleRODENT HOST[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
researchProduct

Kirkwood-Buff integrals from molecular simulation

2019

The Kirkwood-Buff (KB) theory provides a rigorous framework to predict thermodynamic properties of isotropic liquids from the microscopic structure. Several thermodynamic quantities relate to KB integrals, such as partial molar volumes. KB integrals are expressed as integrals of RDFs over volume but can also be obtained from density fluctuations in the grand-canonical ensemble. Various methods have been proposed to estimate KB integrals from molecular simulation. In this work, we review the available methods to compute KB integrals from molecular simulations of finite systems, and particular attention is paid to finite-size effects. We also review various applications of KB integrals comput…

Work (thermodynamics)010405 organic chemistryChemistryGeneral Chemical EngineeringIsotropySolution theoryStructure (category theory)Finite systemGeneral Physics and AstronomyMolecular simulation02 engineering and technology01 natural sciences0104 chemical sciencesKirkwood-Buff integrals020401 chemical engineeringVolume (thermodynamics)Statistical physicsKirkwood-Buff theoryMolecular simulations0204 chemical engineeringPhysical and Theoretical ChemistryDensity fluctuationsSmall system methodFluid Phase Equilibria
researchProduct

Analiza anatomiczna drewna reliktowej sosny zwyczajnej z Sokolicy

2021

The work describes anatomical analysis of the wood from a relict Pinus sylvestris L. performed to determine its characteristics. Transverse ca. 20 μm thick sections were prepared with a core-microtome and observed in bright-field microscopy. Observations of tangential sections were performed in epi-fluorescence. The xylem of the relict pine showed many narrow growth rings. The occurrence of i.a. discontinuous tree rings, light rings and intraannual density fluctuations was stated. It can be expected that specific properties of the wood of the studied pine are the result of harsh growing conditions – limited water availability at the top of Sokolica. In addition, a wide range of factors affe…

intra-annual density fluctuationstracheidschange in cell inclinationdiscontinuous ringsnarrow growth ringsPinus sylvestrislight ringsfalse ringsadaptationxylem
researchProduct