Search results for "SSC"

showing 10 items of 69 documents

Molecular markers for systematic identification and population genetics of the invasive Ponto-Caspian freshwater gammarid Dikerogammarus villosus (Cr…

2006

The Ponto-Caspian amphipod, Dikerogammarus villosus, is an invasive species of many European rivers. First, we show that size difference of nrDNA ITS1 allows discriminating D. villosus from Dikerogammarus bispinosus, a closely related but morphologically hardly distinguishable species. Second, we present two types of polymorphic markers for D. villosus, three microsatellites and two single nucleotide polymorphisms (SNPs) of mtDNA COI gene, which were scored by polymerase chain reaction-single strand conformational polymorphism (PCR-SSCP). These markers will be very useful in studying population genetics of D. villosus.

GeneticsMitochondrial DNAAmphipodaEcologybiologyZoologyPopulation geneticsDikerogammarus villosusSingle-nucleotide polymorphismSingle-strand conformation polymorphismbiology.organism_classificationBiochemistrynrDNA-ITS1General Biochemistry Genetics and Molecular BiologymicrosatellitesSSCP[ SDV.EE.ECO ] Life Sciences [q-bio]/Ecology environment/Ecosystemsinvasive speciesCOI[ SDV.GEN.GPO ] Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]Genetic markerMicrosatelliteComputingMilieux_MISCELLANEOUS[ SDV.BID.SPT ] Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy
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Modelling Photoionisations in Tautomeric DNA Nucleobase Derivatives 7H-Adenine and 7H-Guanine: Ultrafast Decay and Photostability

2021

The study of radiation effects in DNA is a multidisciplinary endeavour, connecting the physical, chemical and biological sciences. Despite being mostly filtered by the ozone layer, sunlight radiation is still expected to (photo)ionise DNA in sizeable yields, triggering an electron removal process and the formation of potentially reactive cationic species. In this manuscript, photoionisation decay channels of important DNA tautomeric derivatives, 7H-adenine and 7H-guanine, are characterised with accurate CASSCF/XMS-CASPT2 theoretical methods. These simulation techniques place the onset of ionisation for 7H-adenine and 7H-guanine on average at 8.98 and 8.43 eV, in line with recorded experimen…

Guaninephotoionisation010402 general chemistryPhotochemistryphotostability01 natural sciencesNucleobasechemistry.chemical_compoundUltraviolet visible spectroscopy0103 physical sciencesUV/Vis spectroscopyexcited states010304 chemical physicsconical intersectionsCationic polymerizationionisation potentialsEspectroscòpia infrarojaQuímicaConical intersectionTautomer0104 chemical scienceschemistryExcited stateCASSCF/CASPT2DNA/RNAGround statePhotochem
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Integrazione di celle solari di terza generazione nel vetromattone per la realizzazione di pannelli traslucidi fotovoltaici. Analisi prestazione e st…

2013

L’articolo illustra i primi risultati ottenuti nell’ambito dell’analisi prestazionale del vetromattone fotovoltaico, un prodotto edilizio innovativo derivato dall’integrazione di celle fotovoltaiche di terza generazione (DSSC) nel vetromattone, ideato per la realizzazione di involucri traslucidi energeticamente effi cienti ed “attivi”, in grado di ridurre i consumi energetici degli edifi ci e di produrre, al contempo, energia verde. L’analisi è stata condotta su quattro differenti ipotesi di integrazione. Attraverso simulazioni numeriche si è effettuata una valutazione dell’energia assorbita dagli strati attivi oltre che delle prestazioni ottiche complessive del dispositivo. Lo studio anali…

In this article the fi rst results of the performance analysis of the photovoltaic glassblock are given. The photovoltaic glassblock is an innovative product which integrates third generation solar cells (DSSC) invented for the construction of translucent building envelopes energetically effi cient and “active” able to reduce the energy consumption in buildings and to produce at the same time green energy. The analysis was conducted on four different hypotheses of integration through numerical simulations in order to evaluate the energy absorption and the optical performance of the device. The software simulations represent a fi rst step for the understanding of the performance of the element and prelude to an experimental analysis session. The results of a research conducted about national and international patents publications on the DSSC technology and its applications will be illustrated too. The data collected during this research had been organized in a digital database.Settore ICAR/10 - Architettura Tecnica
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Fabrication and electro-optical characterization of Ruthenium-based Dye-Sensitized Solar Cells

2015

In this paper, we measure the main photoelectrical parameters of Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes at different irradiance levels, incident wavelengths, temperatures and hours of light soaking

Laser Beam Induced Current (LBIC)Dye Sensitized Solar cells (DSSCs)electro-optical characterizationSettore ING-INF/02 - Campi ElettromagneticiPhotovoltaicSettore ING-INF/01 - Elettronica
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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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Complete basis set B3LYP NMR calculations of CDCl3solvent's water fine spectral details

2008

The assignment of singlet at 1.55 ppm and the 1:1:1 triplet at 1.519 ppm to H2O and HOD in the 400 MHz 1H NMR spectrum of CDCl3 solvent were supported by complete basis set (CBS) GIAO-B3LYP calculated chemical shift and the CBS B3LYP estimated 2J(D,H) spin–spin coupling constant (SSCC). The CBS fitting of B3LYP/cc-pCVxZ and B3LYP/pcJ-n predicted SSCC values, the accurate value of 2J(D,H) = − 1.082 ± 0.030 Hz of HOD in chloroform-d1 and the H/D isotopic shift of 0.0307(1) ppm were reported for the first time. The agreement between CBS B3LYP predicted chemical shift, spin–spin values and experiment was good. Copyright © 2008 John Wiley & Sons, Ltd.

Magnetic Resonance SpectroscopyAnalytical chemistrychemical shiftCBSComputational chemistryGeneral Materials ScienceSinglet statespin–spin coupling constantBasis setCoupling constantB3LYP‐NMRChemistryWaterGeneral ChemistryReference StandardsDeuteriumdeuterochloroformSolventcomplete basis setSSCCModels ChemicalIsotopic shiftHOD tripletSolventsProton NMRChloroformMagnetic Resonance in Chemistry
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SARS CoV2 infection _The longevity study perspectives

2021

Graphical abstract

MaleAgingssRNA single-stranded RNARFLP restriction fragment length polymorphismHSPs heat shock proteinsReviewPTMs post-translational modificationsSevere Acute Respiratory SyndromeBiochemistryHIV-1 human immunodeficiency virus-1TNF-α tumor necrosis factor-αEC endothelial cells0302 clinical medicineFluAV influenza A virusI insertionMedicineIFN-γ interferon-γDIC disseminated intravascular coagulationPCR Polymerase Chain Reactionmedia_commonAged 80 and overLongevityRBD receptor-binding domainNeurologyLongevity modelMI myocardial infarctionNK natural killerhPIV2 human parainfluenza virus type 2media_common.quotation_subjectResearching genetic basis of resistance and potential pharmacological targetsLongevityDBP diastolic blood pressureNF-Kb nuclear transcription factor kBRANTES regulated upon activation normal T cell expressed and secretedMphi human macrophages03 medical and health sciencesCox 2 cyclooxygenase 2ORF open reading framePT prothrombin timeSettore MED/05 - Patologia ClinicaHumansMolecular BiologyInflammatory genesARDS acute respiratory distress syndromeNO nitric oxideD deletionCpGIs CpG islandsT2DM type 2 diabetes mellitusmedicine.diseaseFDP fibrin degradation products030104 developmental biologySARS CoV2 severe acute respiratory syndrome Coronavirus 2 virusImmunologyBMI body max indexItalian nonagenarians/centenariansRSV respiratory syncytial virusComplication030217 neurology & neurosurgeryMAPK mitogen-activated protein kinaseIP-10 IFN-γ -Inducible Protein 1040301 basic medicineAT1R activity of angiotensin 1 receptorsDCs dentritic cellsSSCP single strand conformation polymorphismACE/DD polymorphism of the angiotensin converting enzymeFGF21 fibroblast growth factor 21TLR4 toll-like receptor 4NAD nicotinamide adenine dinucleotideACE angiotensin-I converting enzymeAT2R activity of angiotensin 2 receptorsCOVID-19 Coronavirus disease 2019Respiratory distressACE2 angiotensin converting enzyme 2MKP-1 mitogen-activated protein kinase phosphatase-1 ()PD protease domainSNP single nucleotide polymorphismEH essential hypertensionTNFR tumor necrosis factor receptorINR international normalized ratio of the prothrombin timePAI-1 plasminogen activator inhibitor-1Ang angiotensinLPS lipopolysaccharideMCP1 monocyte chemoattractant protein-1medicine.symptomaPTT partial thromboplastin timeBiotechnologyDUSP1 dual specificity phosphatase 1Coronavirus disease 2019 (COVID-19)PC prostate cancerRAS renin-angiotensin aldosterone systemCCR5Δ32 genetic variant of chemokine receptorCOVID-19 Researching genetic basis of resistance and potential pharmacological targets Italian nonagenarians/centenarians Longevity modelAsymptomaticSARS-1 severe acute respiratory syndrome virus 1SIRT-1 Sirtuin 1Th1 t-helper lymphocyte type 1Immune systemROS reactive oxygen speciesTGF-β transforming growth factor betaET-1 endothelin-1ComputingMethodologies_COMPUTERGRAPHICSADAM-17 metallopeptidase domain 17business.industrySARS-CoV-2SBP systolic blood pressureCOVID-19HDACs histone deacetylasesComorbidityImmune Systembusiness5-LO lipoxygenase 5Ageing Research Reviews
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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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Teacher trainees' experiences of the components of ICT competencies and key factors in ICT competence development in work-based vocational teacher tr…

2022

International journal for research in vocational education and training 9 (2022) 2, S. 146-166

MedienkompetenzLehrerausbildungBerufsschuleeducational technologyDigitale MedienPupil EvaluationBerufs- und WirtschaftspädagogikMedia competence370 Erziehung Schul- und Bildungswesendigitalizationammatilliset opettajat20100Questionnaire surveyinformation technologytyössäoppiminenComputingMilieux_COMPUTERSANDEDUCATIONFragebogenerhebungBildung und ErziehungFinlandWork-Based Learningteaching staffWork-Based Learning; Teacher ICT Competencies; Vocational Education and Training VETUtilization of mediavocational educationInformations- und KommunikationstechnologieLehre und Studium Professionalisierung und Ethik Organisationen und Verbände der ErziehungswissenschaftVocational Training Adult EducationLehrpersonalcommunication technologyStudent teachersneue TechnologieBerufsbildungTeacher ICT Competenciesnew technologyLernumgebungEducational Environment370 EducationLehramtsstudentKompetenzInhaltsanalyseDigitalisierungLeistungsbeurteilungTeacher educationInteractionErziehung Schul- und Bildungswesentieto- ja viestintätekniikkaVocational school for apprenticescompetenceMedia skillsEducationBildungswesen quartärer Bereich BerufsbildungAchievement testddc:370Qualitative researchErwachsenenbildung / WeiterbildungMediennutzungVocational Education and TrainingKommunikationstechnologieddc:330LehrerbildungTraining Teaching and Studying Professional Organizations of Education and PedagogicsComputerunterstütztes VerfahrenUtilisation of mediaInformationstechnologieInteraktionTeacher TrainingLearning environmentQualitative ForschungTechnological Changeberufliche Weiterbildungammatillinen opettajankoulutusFinnlandadvanced vocational educationTeacher trainingAchievement measurementammatillinen kehitysBildungstechnologiekompetenssiVET10600Content analysis
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Modelling Photoionisation in Isocytosine: Potential Formation of Longer‐Lived Excited State Cations in its Keto Form

2021

Abstract Studying the effects of UV and VUV radiation on non‐canonical DNA/RNA nucleobases allows us to compare how they release excess energy following absorption with respect to their canonical counterparts. This has attracted much research attention in recent years because of its likely influence on the origin of our genetic lexicon in prebiotic times. Here we present a CASSCF and XMS‐CASPT2 theoretical study of the photoionisation of non‐canonical pyrimidine nucleobase isocytosine in both its keto and enol tautomeric forms. We analyse their lowest energy cationic excited states including 2π+ , 2nO+ and 2nN+ and compare these to the corresponding electronic states in cytosine. Investigat…

Models MolecularCASPT2Ultraviolet RaysADNPhysics Atomic Molecular & ChemicalRELAXATION DYNAMICSCASSCFArticleCytosineMOLECULAR WAVE-FUNCTIONSCationsIMPLEMENTATION0307 Theoretical and Computational ChemistryPhysical and Theoretical Chemistry0306 Physical Chemistry (incl. Structural)Radiació ionitzantScience & TechnologyChemical PhysicsMolecular StructureChemistry PhysicalConical IntersectionsPhysicsSPECTROSCOPIC FINGERPRINTSDNAArticlesKetonesPhotochemical ProcessesURACILAtomic and Molecular Physics and OpticsChemistryPhotostability2ND-ORDER PERTURBATION-THEORYPhotoionisationPhysical SciencesANO BASIS-SETSSIMULATION0202 Atomic Molecular Nuclear Particle and Plasma PhysicsCASSCF/CASPT2RNAELECTRON CORRELATIONDNA/RNAChemPhysChem
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