Search results for "DSS"

showing 10 items of 90 documents

Experimental characterization of Ruthenium-based Dye Sensitized Solar Cells and study of light-soaking effect impact on performance

2016

In this paper, we present an experimental investigation on the performance of Ruthenium-based Dye Sensitized Solar Cells (DSSCs) at different irradiance levels, incident wavelengths and hours of illumination. In particular, the measurements have been aimed at studying the performance variation due to light soaking effect since this phenomenon has noteworthy practical implications, such as stability tests of DSSCs. Our results show that the short circuit current density, the open circuit voltage and the conversion efficiency η increase with the hours of light soaking. Finally, the observed phenomenon is reversible, and thus the performance decreases again when the cell is kept in the dark.

Laser Beam Induced Current (LBIC)Materials scienceIrradiancechemistry.chemical_element02 engineering and technology01 natural sciencesSettore ING-INF/01 - Elettronicaphotovoltaic0103 physical sciences010302 applied physicsDye Sensitized Solar cells (DSSCs)electro-optical characterizationbusiness.industryOpen-circuit voltageEnergy conversion efficiencySettore ING-INF/02 - Campi Elettromagneticilight soaking021001 nanoscience & nanotechnologyCharacterization (materials science)RutheniumWavelengthDye-sensitized solar cellchemistryOptoelectronics0210 nano-technologybusinessShort circuit
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Increased cortical curvature reflects white matter atrophy in individual patients with early multiple sclerosis

2014

Objective White matter atrophy occurs independently of lesions in multiple sclerosis. In contrast to lesion detection, the quantitative assessment of white matter atrophy in individual patients has been regarded as a major challenge. We therefore tested the hypothesis that white matter atrophy (WMA) is present at the very beginning of multiple sclerosis (MS) and in virtually each individual patient. To find a new sensitive and robust marker for WMA we investigated the relationship between cortical surface area, white matter volume (WMV), and whole-brain-surface-averaged rectified cortical extrinsic curvature. Based on geometrical considerations we hypothesized that cortical curvature increa…

MalePathologyROI region of interestFOV field of viewlcsh:RC346-429ImagingGRAPPA generalized autocalibrating partially parallel acquisitionCortex (anatomy)Image Processing Computer-AssistedFA fractional anisotropyWMV white matter volumeTE echo timeCerebral Cortexmedicine.diagnostic_testEVAL Münster Neuroimaging Evaluation SystemMiddle AgedMagnetic Resonance ImagingWhite MatterTR repetition timemedicine.anatomical_structureNeurologyGMV gray matter volumeCerebral cortexCortexlcsh:R858-859.7FemaleAlzheimer's diseasePsychologyCIS clinically isolated syndromeMRITSE turbo spin-echoAdultmedicine.medical_specialtyAdolescentCognitive NeuroscienceCortical curvatureICV intracranial volumelcsh:Computer applications to medicine. Medical informaticsCurvatureArticleEDSS Expanded Disability Status ScaleMultiple sclerosisWhite matterYoung AdultAtrophyAlzheimer DiseasemedicineHumansRadiology Nuclear Medicine and imagingWM white matterlcsh:Neurology. Diseases of the nervous systemAgedMultiple sclerosis3D three-dimensionaleWMV estimated white matter volumeMagnetic resonance imagingmedicine.diseaseΔWMV WMV − eWMVCI confidence intervalCase-Control StudiesGM gray matterAnisotropyDTI diffusion tensor imagingNeurology (clinical)AtrophySD standard deviationDemyelinating DiseasesNeuroImage: Clinical
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Prevalence of fatigue in Parkinson disease and its clinical correlates

2014

Objective: To assess in a noninterventional setting the prevalence and severity of fatigue in patients with Parkinson disease (PD). Methods: This was a cross-sectional study conducted in Italian patients with PD. Objectives included the evaluation of the current prevalence and severity of fatigue in patients with PD measured using the 16-item Parkinson Fatigue Scale (PFS-16), distressing fatigue (defined as a PFS-16 mean score $3.3), and assessment of its clinical correlates. Results: A total of 402 patients were enrolled and 394 patients completed the PFS-16 questionnaire with a PFS-16 mean (6SD) score of 2.87 6 0.99. Of these, 136 patients (33.8%) reported distressing fatigue (PFS-16 mean…

MaleTime FactorsDiseaseDSM-IV 5 Diagnostic and Statistical Manual of Mental Disorders 4th edition; ICD-10 5 International Classification of Diseases 10th revision; MAO-B 5 monoamine oxidase B; MS 5 multiple sclerosis; PD 5 Parkinson disease; PDQ-39 5 39-item Parkinson’s Disease Questionnaire; PDSS 5 Parkinson’s Disease Sleep Scale; PFS-16 5 16-item Parkinson Fatigue Scale; UPDRS 5 Unified Parkinson’s Disease Rating ScaleSeverity of Illness IndexQuality of life80 and overPrevalencePDSS 5 Parkinson’s Disease Sleep ScaleAge FactorDepression (differential diagnoses)FatigueAged 80 and overDepressionmusculoskeletal neural and ocular physiologyAge FactorsParkinson DiseasePDQ-39 5 39-item Parkinson’s Disease QuestionnaireMiddle AgedItalyPFS-16 5 16-item Parkinson Fatigue ScaleFemaleSettore MED/26 - NeurologiaMS 5 multiple sclerosiPsychologyHumanAdultSleep Wake Disordersmedicine.medical_specialtyPD 5 Parkinson diseasemacromolecular substancesArts and Humanities (miscellaneous)Internal medicinemedicineDistressingHumansIn patientAgedCross-Sectional StudieMAO-B 5 monoamine oxidase BUPDRS 5 Unified Parkinson’s Disease Rating Scalenervous system diseasesAdult; Age Factors; Aged; Aged 80 and over; Cross-Sectional Studies; Depression; Fatigue; Female; Humans; Italy; Male; Middle Aged; Parkinson Disease; Prevalence; Severity of Illness Index; Sleep Wake Disorders; Time Factors; Neurology (clinical); Arts and Humanities (miscellaneous)Cross-Sectional Studiesnervous systemICD-10 5 International Classification of Diseases 10th revisionPhysical therapyNeurology (clinical)DSM-IV 5 Diagnostic and Statistical Manual of Mental Disorders 4th editionSleep Disorder
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Injectable Versus Oral First-Line Disease-Modifying Therapies: Results from the Italian MS Register

2021

AbstractThe current study aims to compare injectable and oral first-line disease-modifying therapies (DMTs) for time to first relapse, time to confirmed disability progression (CDP), and time to discontinuation using a cohort of relapsing remitting multiple sclerosis (RRMS) patients, with data extracted from the Italian MS Register. This multicenter, observational, retrospectively acquired, and propensity-adjusted cohort study utilized RRMS-naïve patients from the Italian MS Register who started either injectable or oral first-line DMTs between January 1, 2010, and December 31, 2017, to evaluate the impact on disability outcomes in patients. Enrolled patients were divided into two groups, n…

Maleoral DMTsoral DMTAdministration OralDiseaseRelapsing-RemittingCohort Studies0302 clinical medicineImmunologicinjectable DMTPharmacology (medical)030212 general & internal medicineRegistriesSubcutaneousMiddle AgedItalyEDSS score; injectable DMTs; Multiple sclerosis; oral DMTs; real-world setting; Adjuvants Immunologic; Administration Oral; Adult; Cohort Studies; Female; Follow-Up Studies; Glatiramer Acetate; Humans; Immunologic Factors; Injections Subcutaneous; Interferon-beta; Italy; Male; Middle Aged; Multiple Sclerosis Relapsing-Remitting; Retrospective Studies; RegistriesAdministrationCohortSettore MED/26 - NeurologiaOriginal ArticleFemaleNeurosurgeryCohort studyOralAdultmedicine.medical_specialtyEDSS scoreInjections SubcutaneousLower riskInjectionsMultiple sclerosis03 medical and health sciencesMultiple Sclerosis Relapsing-RemittingAdjuvants ImmunologicInternal medicinereal-world settingmedicineHumansImmunologic FactorsMultiple sclerosiAdjuvantsinjectable DMTsRetrospective StudiesPharmacologybusiness.industryMultiple sclerosisGlatiramer AcetateInterferon-betamedicine.diseaseDiscontinuationObservational studyNeurology (clinical)business030217 neurology & neurosurgeryFollow-Up Studies
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Photovoltaic facade: Comparison of actual technologies

2017

This article aims to establish the economic contribution of a photovoltaic system placed on a façade of a building, replacing traditional elements such as windows and glass-cement walls with active elements. The aim is to compare the behavior of next-generation systems, which favor architectonical integration, with traditional ones. Two novel systems have been taken into account: a dye sensitized solar cell (DSSC) and blue and grey thin film silicon panels. Different generation systems have been tested and compared in terms of efficiency and fill factor.

Materials scienceSilicon020209 energyPhotovoltaic systemEnergy Engineering and Power Technologychemistry.chemical_elementbuilding integrated photovoltaic02 engineering and technologySettore ING-INF/01 - ElettronicaEngineering physicsDye-sensitized solar cellchemistryPhotovoltaic module0202 electrical engineering electronic engineering information engineeringEconomic contributionFacadeFill factorDSSCElectrical and Electronic EngineeringThin filmthin film silicon2017 IEEE International Telecommunications Energy Conference (INTELEC)
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A Hybrid AHP Approach and GIS-Based Methods as Fundamental Tools in the SECAP’s Decision-Making Process

2023

Adapting to climate change and mitigating its impacts are the main challenges for cities today. One objective that the European Commission has set in recent decades is reducing climate change inaction, and several political actions have been implemented. Among these actions, the Covenant of Mayors led to the development and adoption of Sustainable Energy and Climate Action Plans (SECAPs) by many cities worldwide. A challenge that local authorities must face during the development of a SECAP is the identification of the policies to be included in the plan. This paper presents a case study to show the validity of using a hybrid analytic hierarchy process (AHP) approach and various geographic …

Multi-Criteria Decision Analysis (MCDA)Sustainable Energy and Climate Action Plan (SECAP)Decision Support System (DSS)Settore ICAR/05 - Trasportitransport sectorRenewable Energy Sustainability and the EnvironmentGeography Planning and DevelopmentAnalytic Hierarchy Process (AHP)Building and ConstructionManagement Monitoring Policy and LawSustainability
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A Fuzzy-based Clinical Decision Support System for coeliac disease

2022

Coeliac disease (CD) is a permanent inflammatory disease of the small intestine characterized by the destruction of the mucous membrane of this intestinal tract. Coeliac disease represents the most frequent food intolerance and affects about 1% of the population, but it is severely underdiagnosed. Currently available guidelines require CD-specific serology and atrophic histology in duodenal biopsy samples to diagnose CD in adults. In paediatric CD, but recently in adults also, non-invasive diagnostic strategies have become increasingly popular. In order to increase the rates of correct diagnosis of the disease without the use of biopsy, researchers have recently been using approaches based …

PediatricGeneral Computer ScienceCoeliac diseaseMedical diagnostic imagingneural networkBiopsyfuzzy classifierGeneral Engineeringcomputer aided diagnosiartificial intelligenceSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)DatabaseSociologyGeneral Materials ScienceElectrical and Electronic EngineeringCDSSDecision support system
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Multi-domain spectral approach with Sommerfeld condition for the Maxwell equations

2021

We present a multidomain spectral approach with an exterior compactified domain for the Maxwell equations for monochromatic fields. The Sommerfeld radiation condition is imposed exactly at infinity being a finite point on the numerical grid. As an example, axisymmetric situations in spherical and prolate spheroidal coordinates are discussed.

Physics and Astronomy (miscellaneous)Helmholtz equationRotational symmetryMaxwell equationsHelmholtz equationsSommerfeld conditionMulti domain spectral methodsSpheroidal coordinates010103 numerical & computational mathematicsSommerfeld radiation condition01 natural sciencesDomain (mathematical analysis)010305 fluids & plasmassymbols.namesake0103 physical sciencesFOS: Mathematics[INFO]Computer Science [cs]Mathematics - Numerical Analysis0101 mathematics[MATH]Mathematics [math]Physics[PHYS]Physics [physics]Numerical AnalysisApplied MathematicsMathematical analysisNumerical Analysis (math.NA)Prolate spheroidal coordinatesComputer Science ApplicationsComputational MathematicsDipoleMaxwell's equationsModeling and SimulationsymbolsMonochromatic color
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Low energy reactions with radioactive ions at REX-ISOLDE-the 9Li + 2H case

2005

19 pages, 12 figures, 2 tables.-- PACS nrs.: 25.60.-t; 25.45.-z; 27.20.+n.-- et al. ISOLDE Collaborattion and REX-ISOLDE Collaboration.

PhysicsNuclear and High Energy PhysicsExcitation energyC3D6 targetRex-Isolde post-acceleratorIonNuclear physicsLow energyDeduced reaction channelsDeuteriumReaction radioactiveDSSSD detectorAtomic physicsBeam (structure)Radioactive beam
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Recurrence of the blue wing enhancements in the high ionization lines of SDSS 1004+4112 A

2006

We present integral field spectroscopic observations of the quadruple-lensed QSO SDSS 1004+4112 taken with the fiber system INTEGRAL at the William Herschel Telescope on 2004 January 19. In 2003 May, a blueward enhancement in the high-ionization lines of SDSS 1004+4112A was detected, and then it faded. Our observations are the first to note a second event of similar characteristics less than 1 year after. Although initially attributed to microlensing, the resemblance among the spectra of both events and the absence of microlensing-induced changes in the continuum of component A are puzzling. The lack of a convincing explanation under the microlensing or intrinsic variability hypotheses make…

PhysicsQuasars: emission linesAstrophysics (astro-ph)Gravitational lensingFOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsGravitational microlensingAstrophysicsSpectral lineemission lines [Quasars]Space and Planetary Scienceindividual (SDSS 1004-4112) [Quasars]IonizationQuasars: individual (SDSS 1004-4112)William Herschel Telescope
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