Search results for "Bath"

showing 10 items of 198 documents

Cephalopods in the diet of the striped dolphin Stenella coeruleoalba from the western Mediterranean during an epizootic in 1990

1995

Fifteen cephalopod species from 28 stomach contents of striped dolphins, Stenella coeruleoalba (Meyen, 1833), stranded during an epizootic on the western Mediterranean coast in summer 1990, were analysed. Albraliopsis pfefferi, Onychoteuthis banksii, Todarodes sagittatus and Brachioteuthis riisei are species showing higher relative importance indices. Composition and characteristics of cephalopod preys were discussed and compared to the scarce literature for this cetacean. The data showed a mixed diet of muscular and gelatinous body squids, mainly consisting of oceanic and pelagic or bathypelagic species.

Mediterranean climatebiologyPelagic zoneStenella coeruleoalbabiology.organism_classificationmedicine.diseaseOnychoteuthis banksiiBathyal zoneCephalopodFisherybiology.animalmedicineAnimal Science and ZoologyBrachioteuthisEcology Evolution Behavior and SystematicsEpizootic
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Effects of Metal-Organic Chemical Vapour Deposition grown seed layer on the fabrication of well aligned ZnO nanorods by Chemical Bath Deposition

2011

Well aligned, long and uniform ZnO nanorods have been reproducibly fabricated adopting a two-steps Metal-Organic Chemical Vapour Deposition (MOCVD) and Chemical Bath Deposition (CBD) fabrication approaches. Thin (<100 nm) ZnO buffer layers have been seeded on silicon substrates by MOCVD and ZnO layers have been subsequently grown, in form of well textured nanorods, using CBD. It has been found that the structure and thickness of the seed layer strongly influence the final morphology and the crystal texturing of ZnO nanorods as well as the CBD growth rate. There is, in addition, a strong correlation between morphologies of CBD grown ZnO nanorods and those of the seed layer underneath. Thus, …

Metal-Organic Chemical Vapour Deposition; Chemical Bath Deposition; Zinc oxideMetal-Organic Chemical Vapour Deposition; Chemical Bath Deposition; Zinc oxide; Nanorods; Scanning Electron MicroscopyMaterials scienceFabricationScanning electron microscopeChemical Bath DepositionMetals and Alloyschemistry.chemical_elementNanotechnologySurfaces and InterfacesChemical vapor depositionZincNanorodSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryZinc oxideMaterials ChemistryNanorodMetalorganic vapour phase epitaxyScanning Electron MicroscopyLayer (electronics)Metal-Organic Chemical Vapour DepositionChemical bath deposition
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Geometric aspects of synkinematic granite intrusion into a ductile shear zone — an example from the Yunmengshan core complex, northern China

2005

The Cretaceous Yungmengshan core complex in northern China contains a large syntectonic granodiorite batholith that intrudes a slightly older diorite intrusion. A major gently dipping ductile decollement shear zone is developed along the contact of the diorite and granodiorite. The shear zone is invaded by a large volume of granitic and pegmatite veins associated with the main granodiorite batholith during activity of the shear zone under high-grade metamorphic conditions. Progressively older veins are more strongly deformed into tight cylindrical fold structures rotated into parallelism with the lineation and foliation in the shear zone. Parallelism of veins to the foliation is partly due …

Metamorphic core complexPlutonGeochemistryGeologyOcean EngineeringDioriteBatholithThrust faultShear zoneGeologyMetamorphic faciesSeismologyWater Science and TechnologyMyloniteGeological Society, London, Special Publications
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Order and Chaos in the Statistical Mechanics of the Integrable Models in 1+1 Dimensions

1991

This paper was presented at the meeting under this title. But, originally, the more cumbersome ‘Quantum chaos — classical chaos in k-space: thermodynamic limits for the sine-Gordon models’ was proposed. Certainly this covers more technically the content of this paper.

Nonlinear Sciences::Chaotic DynamicsCHAOS (operating system)Classical mechanicsComputingMilieux_THECOMPUTINGPROFESSIONComputerSystemsOrganization_COMPUTERSYSTEMIMPLEMENTATIONIntegrable systemHeat bathThermodynamic limitOrder (ring theory)Statistical physicsStatistical mechanicsQuantum chaosMathematics
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Exposure to UV radiation and risk of Hodgkin lymphoma: A pooled analysis

2013

Ultraviolet radiation (UVR) exposure has been inversely associated with Hodgkin lymphoma (HL) risk, but only inconsistently, only in a few studies, and without attention to HL heterogeneity. We conducted a pooled analysis of HL risk focusing on type and timing of UVR exposure and on disease subtypes by age, histology, and tumor-cell Epstein-Barr virus (EBV) status. Four case-control studies contributed 1320HLcasesand 6381 controls. We estimated lifetime, adulthood, and childhood UVR exposure and history of sunburn and sunlamp use. We used 2-stage estimation with mixed-effects models and weighted pooled effect estimates by inverse marginal variances. We observed statistically significant inv…

OncologyMaleEpstein-Barr Virus InfectionsDNA RepairSunburnSkin PigmentationComorbidityBiochemistryT-Lymphocytes Regulatoryvisual_art.visual_artistimmune system diseaseshemic and lymphatic diseasesYoung adultSunburnAged 80 and overLymphoid NeoplasiaSunbathingintegumentary systemExposure CategoryInside BLOODConfoundingAge FactorsConfounding Factors EpidemiologicHematologyMiddle AgedHodgkin DiseaseEuropeHodgkin lymphoma (HL)visual_artSunlightFemaleAdultmedicine.medical_specialtyAdolescentUltraviolet RaysImmunologyBiologyWhite PeopleYoung AdultSunbathingInternal medicinemedicineHumansUltraviolet radiation (UVR)tumor-cell Epstein-Barr virus (EBV)AgedfungiCase-control studyModels ImmunologicalDose-Response Relationship RadiationCell BiologyOdds ratiomedicine.diseaseRelative riskCase-Control StudiesImmunologyDNA Damage
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Exposure to trihalomethanes through different water uses and birth weight, small for gestational age, and preterm delivery in Spain

2011

Background: Evidence associating exposure to water disinfection by-products with reduced birth weight and altered duration of gestation remains inconclusive. Objective: We assessed exposure to trihalomethanes (THMs) during pregnancy through different water uses and evaluated the association with birth weight, small for gestational age (SGA), low birth weight (LBW), and preterm delivery. Methods: Mother–child cohorts set up in five Spanish areas during the years 2000–2008 contributed data on water ingestion, showering, bathing, and swimming in pools. We ascertained residential THM levels during pregnancy periods through ad hoc sampling campaigns (828 measurements) and regulatory data (264 me…

PediatricsFetus -- CreixementBathingHealth Toxicology and MutagenesisEspaña:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Cohort Studies:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Models Theoretical [Medical Subject Headings]small for gestational agePregnancynewbornFemeninosExposición a Riesgos Ambientales:Phenomena and Processes::Reproductive and Urinary Physiological Phenomena::Reproductive Physiological Phenomena::Reproductive Physiological Processes::Reproduction::Pregnancy [Medical Subject Headings]:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]water pollutionInfeccions respiratòries -- EpidemiologiaAdultodisinfection by-products:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight [Medical Subject Headings]Modelos TeóricosEnvironmental exposurepremature birthNacimiento PrematuroHumanos:Health Care::Environment and Public Health::Public Health::Environmental Pollution::Environmental Exposure [Medical Subject Headings]:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Models Statistical::Logistic Models [Medical Subject Headings]Premature birthInfant Small for Gestational AgeGestation:Named Groups::Persons::Age Groups::Infant::Infant Newborn::Infant Low Birth Weight::Infant Small for Gestational Age [Medical Subject Headings]Femaleepidemiologymedicine.symptomAigua -- DepuracióAdultmedicine.medical_specialtytrihalomethanesContaminantes Químicos del AguaEmbarazoBirth weight:Named Groups::Persons::Age Groups::Infant::Infant Newborn [Medical Subject Headings]Embaràs -- Aspectes nutricionalsRecién nacidoRecién Nacido Pequeño para la Edad GestacionalEnvironmental healthmedicine:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]cohort studyModelos LogísticosHumanslow birth weightEpidemiologiaRecién Nacido de Bajo Peso:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Halogenated::Trihalomethanes [Medical Subject Headings]Pregnancybusiness.industryTrihalometanoResearchPublic Health Environmental and Occupational HealthInfant Newbornbirth weightEnvironmental ExposureInfant Low Birth WeightModels Theoreticalmedicine.diseaseLow birth weightLogistic Models: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]Small for gestational age:Chemicals and Drugs::Chemical Actions and Uses::Toxic Actions::Environmental Pollutants::Water Pollutants::Water Pollutants Chemical [Medical Subject Headings]:Diseases::Female Urogenital Diseases and Pregnancy Complications::Pregnancy Complications::Obstetric Labor Complications::Obstetric Labor Premature::Premature Birth [Medical Subject Headings]businessEstudios de CohortesWater Pollutants Chemical
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Intramolecular charge transfer in elongated donor-acceptor conjugated polyenes

1995

Abstract Intramolecular charge transfer (ICT) has been investigated by electro-optical absorption measurements for two series of donor-acceptor polyenes of increasing length. Each molecule undergoes an increase in dipole moment upon photoexcitation. The experimental results indicate that lengthening the polyenic chain linking the donor and acceptor end groups results in a bathochromic shift of the ICT absorption band and induces marked increases of both excited state and transition dipoles, whereas the ground-state dipole is relatively unaffected. As a result, marked photoinduced changes in the dipole moment (up to 33 D) were obtained with the longest molecules (up to 27 A) leading to highl…

PhotoexcitationBond dipole momentDipoleChemistryAbsorption bandIntramolecular forceExcited stateBathochromic shiftGeneral Physics and AstronomyPhysical and Theoretical ChemistryPhotochemistryAcceptorChemical Physics Letters
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Synthesis and photoluminescence properties of hybrid 1D core–shell structured nanocomposites based on ZnO/polydopamine

2020

In the present work, we report on the modelling of processes at the zinc oxide and polydopamine (ZnO/ PDA) interface. The PDA layer was deposited onto ZnO nanorods (NRs) via chemical bath deposition. The defect concentrations in ZnO before and after PDA deposition were calculated and analysed. The ZnONRs/PDA core–shell nanostructures were studied by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman and Fourier-transform infrared (FTIR) spectroscopy, photoluminescence (PL) measurements, and diffuse reflectance spectroscopy. The TEM and electron energy loss spectroscopy (EELS) measurements confirmed the conformal coating of PDA, while the PL emission from ZnO and ZnONRs/P…

PhotoluminescenceMaterials scienceDiffuse reflectance infrared fourier transformGeneral Chemical EngineeringElectron energy loss spectroscopyGeneral ChemistryX-ray diffraction (XRD)symbols.namesakephotoluminescence (PL)Chemical engineeringTransmission electron microscopysymbolsNanorodzinc oxide and polydopamine (ZnO/ PDA)Fourier transform infrared spectroscopyRaman spectroscopyChemical bath deposition
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Photoluminescence transient study of surface defects in ZnO nanorods grown by chemical bath deposition

2015

Two deep level defects (2.25 and 2.03 eV) associated with oxygen vacancies (Vo) were identified in ZnO nanorods (NRs) grown by low cost chemical bath deposition. A transient behaviour in the photoluminescence (PL) intensity of the two Vo states was found to be sensitive to the ambient environment and to NR post-growth treatment. The largest transient was found in samples dried on a hot plate with a PL intensity decay time, in air only, of 23 and 80 s for the 2.25 and 2.03 eV peaks, respectively. Resistance measurements under UV exposure exhibited a transient behaviour in full agreement with the PL transient, indicating a clear role of atmospheric O-2 on the surface defect states. A model fo…

PhotoluminescencePhysics and Astronomy (miscellaneous)Analytical chemistryPhotovoltaic applicationFOS: Physical scienceschemistry.chemical_elementNanorodOxygen vacancieSettore ING-INF/01 - ElettronicaOxygensymbols.namesakeMesoscale and Nanoscale Physics (cond-mat.mes-hall)ultravioletSurface defect stateDepositionPhotoluminescenceChemical-bath depositionTransient studies Surface defectsPhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsFermi levelDeep-level defectBand bendingnanowireschemistryZinc oxide Ambient environmentsymbolsNanorodPhotoluminescence intensitiefilmsTransient (oscillation)Resistance measurementIntensity (heat transfer)Chemical bath depositionApplied Physics Letters
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Return to Equilibrium, Non-self-adjointness and Symmetries, Recent Results with M. Hitrik and F. Hérau

2014

In this talk we review some old and new results about the use of supersymmetric structures in semi-classical problems. Necessary and sufficient conditions are obtained for a real semiclassical partial differential operator of order two to possess a supersymmetric structure. For operators coming from a chain of oscillators, coupled to two heat baths, we show the non-existence of a smooth supersymmetric structure. The recent and new results all come from joint works with Michael Hitrik and Frederic Herau.

PhysicsHeat bathHomogeneous spaceStructure (category theory)Semiclassical physicsOrder (group theory)Partial differential operatorMorse theoryMathematical physics
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