Search results for "BD"

showing 10 items of 3363 documents

Association of asthma with extra-respiratory symptoms in schoolchildren: two cross-sectional studies 6 years apart

2002

Epidemiological information on symptoms affecting extra-respiratory organs and apparatuses in asthmatic children is scarce. The aim of this study therefore was to evaluate, at a population level, if and what extra-respiratory symptoms are associated with asthma. Two questionnaire-based, cross-sectional surveys were carried out on 1,262 students (651 males; mean age 9.57 years, age-range 6-14 years) in 1992 and on 1,210 students (639 males; mean age 9.02 years, age-range 6-14 years) in 1998, from two elementary and two junior high schools in Rome, Italy. Questionnaires included queries about asthma and its risk factors and extra-respiratory symptoms (headache, restlessness, sleep disturbance…

Cross-Sectional StudieMaleUrticariaAdolescentQuestionnaireRisk FactorAsthmaAbdominal PainPrurituItalyPrevalenceFemalePruritus; Questionnaires; Abdominal Pain; Humans; Asthma; Urticaria; Child; Italy; Cross-Sectional Studies; Respiratory Tract Diseases; Risk Factors; Adolescent; Female; Male; PrevalenceChildRespiratory Tract DiseaseHuman
researchProduct

Dynamic segregation during ferrite oxidation revealed by XPS

2002

Dynamic segregation phenomena were revealed by XPS during the oxidation of some ferrites (Fe 2.5 Ti 0.5 O 4 , Fe 2.5 Ni 0.5 O 4 , Fe 2 CrO 4 and FeCr 2 O 4 ). This kind of phenomenon induces, at a low temperature (below room temperature), drastic changes in the cationic composition of the most external layers. Dynamic segregation is a function of the cationic composition, the oxidation capability and the morphology of these ferrites. Although dynamic segregation seems to be a quite frequent phenomenon that often can be observed during ferrite oxidation, there are materials in existence where it does not appear, such as molybdenum ferrite.

CrystallographyMaterials sciencechemistryX-ray photoelectron spectroscopyMolybdenumMaterials ChemistryCationic polymerizationFerrite (magnet)chemistry.chemical_elementSurfaces and InterfacesGeneral ChemistryCondensed Matter PhysicsSurfaces Coatings and FilmsSurface and Interface Analysis
researchProduct

[MoO2(SCPh2CO2)2]2− and [MoO(SCPh2CO2)2]− anion complexes. A theoretical structure characterization

1995

Abstract Geometry optimization of [MoO 2 (SCH 2 CO 2 ) 2 ] 2− and [MoO(SCH 2 CO 2 ) 2 ] − systems as models of [MoO 2 (SCPh 2 CO 2 ) 2 ] 2− and [MoO(SCPh 2 CO 2 ) 2 ] − anion complexes have been carried out at STO-3G, 3-21G, LANL1MB and LANL2DZ basis set levels. A comparison of the theoretical results and X-ray experimental data has been performed. STO-3G minimal basis set produces the best geometrical agreement, in particular the distances and orientations of the different ligands linked to molybdenum transition metal. A large structural overlap with STO-3G optimized geometry and X-ray data has been found for the [MoO 2 (SCPh 2 CO 2 ) 2 ] 2− and [MoO(SCPh 2 CO 2 ) 2 ] − anion complexes.

CrystallographyTransition metalOptimized geometryChemistryMolybdenumchemistry.chemical_elementPhysical and Theoretical ChemistryCondensed Matter PhysicsEnergy minimizationBiochemistryBasis setIonCharacterization (materials science)Journal of Molecular Structure: THEOCHEM
researchProduct

Insults, humour and freedom of speech

2016

In this article we argue that freedom of speech should be understood as a social freedom. In the public discussion after the Charlie Hebdo attacks, it has often been understood as an absolute right to say anything – to offend, to make a fool of others and of oneself, and to express any opinion regardless of the consequences. We challenge this view and propose that advocating freedom of speech without understanding its social foundations is misleading and counterproductive. Based on the critical social theories of Erich Fromm, Charles Taylor and Axel Honneth, we show that there is an alternative tradition in which freedom is fundamentally rooted in social relations and therefore requires re…

Cultural StudiesHistoryphilosophyFromm05 social sciencesCharles050601 international relationsSocial relation0506 political scienceEpistemologyfreedom of speechTaylorsocial freedomPublic discussionAbsolute (philosophy)LawAxelHonnethErich050602 political science & public administrationCharlie HebdoSociologyta611Social theoryFrench Cultural Studies
researchProduct

Itinerant Electron Metamagnetism in η-Carbide-Type Compound Co3Mo3C

2010

We report the magnetic properties of the cobalt molybdenum η-carbide-type compounds Co 3 Mo 3 C and Co 3 Mo 3 N. The magnetic susceptibility χ of Co 3 Mo 3 C shows a Curie–Weiss temperature dependence at high temperatures and a broad maximum at around 100 K, whereas that of Co 3 Mo 3 N shows a nearly temperature-independent enhanced Pauli paramagnetic behavior. The absence of a magnetic long-range order was confirmed by the nuclear magnetic resonance technique in both the compounds. As expected from the broad maximum of χ, we observed an itinerant electron metamagnetic transition at around 37 T in Co 3 Mo 3 C.

Curie–Weiss lawMaterials scienceCondensed matter physicsGeneral Physics and Astronomychemistry.chemical_elementMagnetic susceptibilityCarbideCrystallographyParamagnetismchemistryMolybdenumCurie temperatureCobaltMetamagnetismJournal of the Physical Society of Japan
researchProduct

Caratterizzazione idrologica dei bacini siciliani col metodo del Curve Number

2010

Curve Number perdita iniziale per intercettazione ed invaso superficiale in forma adimensionale (lambda) stagionalità del CNSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestali
researchProduct

Monolayer Formation of Molybdenum Carbonyl on Cu(111) Revealed by Scanning Tunneling Microscopy and Density Functional Theory

2012

International audience; Molybdenum carbonyl Mo(CO)(6) was adsorbed on the Cu(111) surface at 160 K in the monolayer coverage range and studied by scanning tunneling microscopy. A well-ordered monolayer of hexacarbonyl molecules was observed experimentally for the first time. The monolayer has a hexagonal structure compatible with a (root 7 x root 7)R19 superlattice on the copper (111) plane. The arrangement and orientation of the molecules on the surface were determined by density functional theory calculations, including van der Waals interactions. The comparison of adsorption and cohesive energies reveals that the molecule-substrate interaction is stronger than the intermolecular one, whi…

DECOMPOSITIONADSORPTIONSuperlatticeAnalytical chemistrychemistry.chemical_element02 engineering and technologyHEXACARBONYL010402 general chemistry01 natural scienceslaw.inventionSYNCHROTRON-RADIATIONsymbols.namesakeAdsorptionlawMonolayerPhysical and Theoretical ChemistryMO(CO)(6)DEPOSITIONSPECTROSCOPYChemistryIntermolecular forceTIO2(110)PHOTODISSOCIATION021001 nanoscience & nanotechnologyMO0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographyGeneral EnergyMolybdenumsymbolsDensity functional theoryScanning tunneling microscopevan der Waals force0210 nano-technology
researchProduct

"Table 39" of "Energy dependence of event shapes and of alpha(s) at LEP-2."

1999

Distributions of the Jet Broadening Difference (BDIFF) at cm energies 133, 161 and 172 GeV.

DN/DBDIFFAstrophysics::High Energy Astrophysical PhenomenaE+ E- --> HADRONSE+ E- --> JETSE+ E- ScatteringExclusiveHigh Energy Physics::ExperimentSingle Differential DistributionJet ProductionNuclear Experiment133.0-172.0
researchProduct

"Table 40" of "Energy dependence of event shapes and of alpha(s) at LEP-2."

1999

Distribution of the Jet Broadening Difference (BDIFF) at cm energy 183 GeV.

DN/DBDIFFAstrophysics::High Energy Astrophysical PhenomenaE+ E- --> HADRONSE+ E- --> JETSE+ E- ScatteringExclusiveHigh Energy Physics::ExperimentSingle Differential DistributionJet ProductionNuclear Experiment183.0
researchProduct

"Table 1" of "Inclusive Lambda/c production in e+ e- annihilations at s**(1/2) = 10.54-GeV and in Upsilon(4S) decays."

2008

LAMBDA/C+ differential production rate per hadronic event for the continuum at cm energy 10.54 GeV.

DN/DXInclusive10.54Strange productionE+ E- ScatteringE+ E- --> LAMBDA/C+ XHigh Energy Physics::ExperimentUpsilonSingle Differential DistributionNuclear Experiment
researchProduct