Search results for "matter [quantum chromodynamics]"

showing 10 items of 162 documents

More Than Meets the Eye: Toward a Post-Materialist Model of Consciousness.

2015

Commonly accepted models of human consciousness have substantial shortcomings, in the sense that they cannot account for the entire scope of human experiences. The goal of this article is to describe a model with higher explanatory power, by integrating ideas from psychology and quantum mechanics. In the first part, the need for a paradigm change will be justified by presenting three types of phenomena that challenge the materialistic view of consciousness. The second part is about proposing an alternative view of reality and mind–matter manifestation that is able to accommodate these phenomena. Finally, the ideas from the previous parts will be combined with the psychological concepts deve…

Post-materialismConsciousnessmedia_common.quotation_subjectIntelligencemind-matter manifestationArtificial consciousnessta3112GeniusModels Biological03 medical and health sciences0302 clinical medicinepost-materialismHumansPsychologySocial consciousnessta611ta515General Nursingnon-localitymedia_commonPerspective (graphical)030227 psychiatryEpistemologyMental HealthComplementary and alternative medicineParadigm shiftQuantum TheoryChiropracticsConsciousnessMaterialismPsychologysubliminal selfSocial psychology030217 neurology & neurosurgeryAnalysisExplore (New York, N.Y.)

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Higgs in space!

2010

We consider the possibility that the Higgs can be produced in dark matter annihilations, appearing as a line in the spectrum of gamma rays at an energy determined by the masses of the WIMP and the Higgs itself. We argue that this phenomenon occurs generally in models in which the the dark sector has large couplings to the most massive states of the SM and provide a simple example inspired by the Randall-Sundrum vision of dark matter, whose 4d dual corresponds to electroweak symmetry-breaking by strong dynamics which respect global symmetries that guarantee a stable WIMP. The dark matter is a Dirac fermion that couples to a Z' acting as a portal to the Standard Model through its strong coupl…

QuarkParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Astrophysics::High Energy Astrophysical PhenomenaDark matter theoryDark matterGamma ray experimentsFOS: Physical sciences7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)symbols.namesakeHigh Energy Physics - Phenomenology (hep-ph)WIMP0103 physical sciences010306 general physicsParticle Physics - PhenomenologyPhysicsAnnihilation010308 nuclear & particles physicsElectroweak interactionAstronomy and AstrophysicsCosmology of Theories beyond the SMHigh Energy Physics - PhenomenologyDark matter experimentsDirac fermionsymbolsHiggs bosonAstrophysics - Cosmology and Nongalactic AstrophysicsFermi Gamma-ray Space TelescopeJournal of Cosmology and Astroparticle Physics

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Electrochemical characterization of mangrove sediments: A proposal of new proxies for organic matter oxidation

2019

Abstract The voltammetric response of microparticulate deposits resulting from solvent evaporation of ethanolic extracts of mangrove sediments in contact with aqueous acetate buffer is hereby described. Dated sediment cores sampled from the Peruvian mangrove system (“Manglares de Tumbes” National Sanctuary) presented voltammetric responses dominated by oxidative signals of organic components that exhibit significant variations depending on the depth. Voltammetric data allowed for the definition of electrochemical indexes representative of the electrochemically oxidable organic matter fraction. These electrochemical indexes were fEAOM (for the total amount of organic matter being electrochem…

Redox state010501 environmental sciences010502 geochemistry & geophysicsElectrochemistryMangrove sediments01 natural sciencesevaporationPeruElectrochemistryChemical analysisInfrared spectroscopyorganic matterchemistry.chemical_classificationAqueous solutionChemistryBiogeochemistryPollutionOrganic matter oxidationEnvironmental chemistryOrganic matter degradationsMangroveoxidationInfrared spectroscopyredox conditionssolventSedimentsVoltammetric responseGeochemistry and PetrologyOrganic compoundsOrganic matter fractionEnvironmental ChemistryOrganic matter14. Life underwaterSpectroscopyOxidation proxies0105 earth and related environmental sciencesparticulate mattermangrove//purl.org/pe-repo/ocde/ford#1.05.00 [https]SedimentBiological materials15. Life on landcoastal sedimentElectrochemical characterizationssediment coreSolvent evaporationVoltammetryethanolacetateaqueous solutionReactive oxygen species

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Residential Exposure to PM2.5 Components and Risk of Childhood Non-Hodgkin Lymphoma in Denmark: A Nationwide Register-Based Case-Control Study

2020

In a recent study, we observed an increased risk of childhood non-Hodgkin lymphoma (NHL) associated with exposure to fine atmospheric particulate matter (PM2.5) and black carbon (BC). In this nationwide register-based case-control study, we focus on specific components of PM2.5 in relation to childhood NHL in Denmark (1981&ndash

Register basedMale010504 meteorology & atmospheric sciencesHealth Toxicology and MutagenesisChildhood Non-Hodgkin LymphomaDenmarkSecondary organic aerosolslcsh:Medicine01 natural sciencescomplex mixturesArticle03 medical and health scienceschemistry.chemical_compound0302 clinical medicineimmune system diseasesInterquartile rangehemic and lymphatic diseasesAir PollutionMedicineHumans030212 general & internal medicineChildsecondary inorganic aerosols0105 earth and related environmental sciencesAerosolsAir Pollutantsparticulate matter componentsSecondary organic aerosolsbusiness.industryLymphoma Non-Hodgkinlcsh:RPublic Health Environmental and Occupational HealthCase-control studyOdds ratiocarbonaceous particlesEnvironmental ExposureConfidence intervalCancer registryregister-based studychemistryCase-Control StudiesParticulate Matterbusinesschildhood Non-Hodgkin LymphomaDemographyEnvironmental MonitoringInternational Journal of Environmental Research and Public Health

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Humic substances along the profile of two Typic Haploxerert.

2002

In Vertisols, organic matter contributes to soil colour by formation of organo-mineral complexes and affects morphological, physico-chemical, biological and biochemical properties. Turbation may affect the chemical and structural composition of the most stabilised fractions of soil organic matter (SOM), i.e., humic substances (HS). The objectives of this study were to: (1) characterise SOM in two Vertisols (V1 and V2) developed under Mediterranean climate in Italy, using some HS characteristics as indicators of SOM turnover in Vertisols, and (2) explore possible differences related to the pedomorphologic conditions of the area under which two soils have formed. SOM evolution along the soil …

Settore AGR/14 - PedologiaOrganic Matter turnoverHumic SubstancesHumification parametersVertisols

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The shallow seagrass system in Southern Mediterranean (Sicily, Italy): a large sink of organic matter available to upper consumers.

2006

The effects of human activities related to salt production on the global complexity of a shallow hyperhaline system (Sicily, Italy) were investigated. This through monitoring dynamics of some physical, chemical and trophic factors recognised as main constraints for the origin of organic matter and its availability to apex consumers. The system was dominated by seagrass Ruppia cirrhosa and large stands of macroalga Chaetomorpha linum; isopods and gasteropods were the most abundant taxa among benthic organisms, while Aphanius fasciatus and Atherina boyeri represented up to 90% of all catch among the small resident fishes. Ruppia could function as a multidimensional framework able to increase …

Settore BIO/07 - EcologiaSeagrass Ruppia cirrhosa organic matter availability shallow waters MediterraneanSettore BIO/02 - Botanica Sistematica

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Angular harmonic dependence from a 3D-H2+ Molecular Ion

2012

The time-dependent Schroedinger equation of a H2+ molecular ion in the presence of a linearly polarized laser field is numerically solved by means of a split-operator parallel code. The electron, driven by the laser electric field, emits electromagnetic radiation whose HHG spectrum (shown in Figure 1) can be finely controlled by changing the angle between the laser electric field and the molecular axis. The numerical results confirm that the structure of the spectra strongly depends on this angle. In particular the correlation between the laser orientation (with respect to the molecular axis) and the intensity of various harmonic peaks are displayed in Figure 2.

Settore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciLaser Matter InteractionHigh Order Harmonic GenerationAttosecond Pulse Generation; High Order Harmonic Generation; Laser Matter Interaction;Settore FIS/03 - Fisica Della MateriaAttosecond Pulse Generation

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Laser induced ultrafast H2+ dinamic and attosecond generation

2012

We examine the possibility that a H2+ molecular ion driven by a linearly polarized laser field can be considered as a source of attosecond pulses. The emisseion is investigated taking into account the role of the internuclear distance and by changing the angle between the laser field and the molecular axis. We find that the attosecond pulses emission happens when the electron cloud is over one nucleus; on the contrary, when the elctron is travelling between the two nuclei the attosecond emission do not take place.

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Sine cura. Verso il ri-ciclo dell'architettura del secondo Novecento

2019

Gli argomenti discussi nel saggio interrogano il destino che il Codice dei Beni Culturali (2004- 2011) determina per le opere del secondo Novecento. Nella costruzione del futuro di questi manufatti, che per funzione, tecnologia e cicli d’uso sono spesso segnati dall’obsolescenza e dall’abbandono, le ambiguità e le incongruenze delle attuali procedure legislative sollecitano profondamente il ruolo culturale delle esperienze di ricerca che usano metodologie meta progettuali. Il confronto fra alcuni casi italiani ed altri europei rimarca il ruolo del progetto nella costruzione di una prospettiva di tutela trasformativa per il costruito del secondo Novecento. Nel quadro di azione marcato dall’o…

Settore ICAR/14 - Composizione Architettonica E UrbanaThe essay questions the future's possibilities to operate on the buildings of the second half of the twentieth century according to the Italian Code of Cultural Heritage (2004-2011). When arguing how to encourage the re-use of these artifacts which are often marked by short-life technology cycles obsolescence and abandonment the ambiguities and inconsistencies of current legislative procedures deeply stress the cultural role of research experiences that use project-oriented methodologies. The comparison between some Italian and other European cases highlights the role of a design approach in the construction of a transformative protection perspective for the built matter of the second half of the twentieth century. In a framework aiming to encourage a reconciliation between the recent built environment and the new paradigms of sustainability and circular economy architecture must recognize re-cycle practices as a main theoretical and procedural node. To modernize the late Modern built environment with contemporary construction components is not simply a matter of technical knowledge and expertise: but a theme with theoretical density aesthetic and ethical values. The architectural project in this field today must ask for greater congruence between the bureaucratic and administrative levels and the real consistency of this corpus. It is a matter of identifying strategies to equip it with capabilities meanings and contents remembering that demolition wastes have unsustainable environmental costs and uncertain results concerning the necessary new attribution of political and semantic meaning that these places await.

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Scritti in onore di Pellegrino Capaldo

2014

La qualità dei servizi è stata riconosciuta come un rilevante aspetto caratterizzante la performance dell’azienda pubblica, analogamente alla capacità di operare secondo criteri di efficienza e nel rispetto dei vincoli di bilancio. Sebbene sia possibile riscontrare alcuni significativi casi di adozione di politiche di customer satisfaction nelle amministrazioni pubbliche italiane, a tutt’oggi il tema presenta significative criticità, specialmente in ordine agli aspetti metodologici e agli strumenti operativi che consentano di integrare dette politiche nel sistema di programmazione e controllo delle aziende che erogano tali servizi. Il presente lavoro adotta una diversa prospettiva di analis…

Settore SECS-P/07 - Economia AziendaleQuality in delivering public services has been recognised as a major issue challenging performance in the public sector as well as the ability to operate effectively and within budget constraints. Empirical findings shown by the literature demonstrate that concrete efforts have been produced towards the evaluation and improvement of satisfaction levels of citizens and other Public Administration’s ‘customers’. However still today this issue portrays many unresolved criticalities particularly concerning the methodological approaches and operative tools to adopt in order to integrate ‘customer satisfaction’ programs with the wider organisational control system in each public administration. This paper adopts a non-conventional view of the ‘customer satisfaction’ concept. This is currently meant as a matter of social reporting or even statistical analysis based on the users’ perceptions on the level of provided services by a given (front office) unit in the public sector. Here an inter-institutional perspective is adopted with a view to map the overall value chain leading to the final product delivered to citizens or the community. Inside this chain tracking the underlying administrative products delivered by back-office units to their ‘internal clients’ in the public administration is recommended as a fundamental step to understand how to improve performance in satisfying citizens’ needs. This should also require a proper link between the administrative units’ goals and performance measures to the desired efficiency and effectiveness of processes leading to the attainment of administrative products providing the basis of the final services delivered to the private sector. Based on first empirical findings from field analysis in the Italian context the paper aims to outline an approach which could assist both politicians and managers to better assess and improve performance according to a customer satisfaction perspective.

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