Spin LabelsSpin TrappingElectron Spin Resonance SpectroscopyCyclic N-OxidesNitrogen OxidesFree RadicalsTriacetoneamine-N-OxylHydroxyl RadicalMagnetic Resonance SpectroscopyMagneticsHydroxidesSpectroscopy, MossbauerOxidation-ReductionHemeElectronsQuantum TheoryMagnetic Resonance ImagingIronProtein ConformationModels, MolecularModels, ChemicalTemperatureSpectrophotometryImage EnhancementMethemoglobinMicrowavesOxygenCamphorCerebrovascular CirculationKineticsSpectrum AnalysisMolecular ConformationLipid BilayersSpectrum Analysis, RamanMolecular StructureWaterMembrane FluiditySuperoxidesMetmyoglobinMathematicsDimyristoylphosphatidylcholineNuclear Magnetic Resonance, BiomolecularPhysical PhenomenaEcho-Planar ImagingImage Interpretation, Computer-AssistedThermodynamicsBinding SitesPerfusion ImagingMagnetic Resonance AngiographyHemeproteinsNitrogen IsotopesFerric CompoundsSulfur OxidesMembranes, ArtificialAlgorithmsHydrogen PeroxideCyanidesPhosphatidylcholinesStearic AcidsMembrane LipidsProtein BindingFree Radical ScavengersMyoglobinNanodiamondsProtonsHydrogen-Ion ConcentrationComputer SimulationMagnetic FieldsFerrous CompoundsBenzene DerivativesImage Processing, Computer-AssistedDiffusionIron-Sulfur ProteinsSolutionsSignal-To-Noise RatioProtein Structure, SecondaryNitroso CompoundsCopperHorseradish PeroxidaseBiophysical PhenomenaArtifactsCytochrome P-450 Enzyme SystemBlood Circulation TimeReproducibility of ResultsMesylatesPhantoms, ImagingLiposomesCysteineWhalesBiophysicsPeroxidasesBrainCholestanesAnisotropyManganeseIron CompoundsMagnetic PhenomenaLigandsCattlePeroxides