Search results for " LAB"

showing 10 items of 2393 documents

Tutela e sicurezza del lavoro tra centro e periferia: la sicurezza sui luoghi di lavoro

2013

Il saggio prende in esame la complessa questione del riparto di competenze tra Stato e Regioni alla luce del Titolo V della Costituzione in materia di salute e sicurezza sui luoghi di lavoro. Il riparto di competenze tra centro e periferia è stato oggetto di una limitata analisi da parte della dottrina e della giurisprudenza, che si sono concentrate in particolare sulla disciplina del mercato del lavoro. L’Autore descrive un sistema multilivello, caratterizzato dalla compresenza di fonti nazionali e regionali, della contrattazione collettiva, nonché di codici di condotta. Sulla scorta di una ricostruzione del quadro normativo e dei percorsi della giurisprudenza, il saggio propone una lettur…

The essay examines the complex issue of the division of powers between the State and the Regions according to Title V of the Constitution concerning health and safety at workplace. This division between the center and the periphery has been subject to a limited review by doctrine and jurisprudence expecially focusing on the regulation of labour market. The Author describes a multilevel system characterized by the presence of national and regional sources collective bargaining and codes of conduct. On the basis of a reconstruction of the regulatory framework and the judicial statements the paper proposes a dynamic reading of the relationship between center and periphery in which the axis of the system remains however anchored to the national jurisdiction along with important regulatory issues left to the regional legislation.Settore IUS/07 - Diritto Del Lavoro
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Abitare nel reale. Dalla crisi della periferia alla tessitura di nuove relazioni contestuali

2019

I progetti redatti per “Palermo Sud-Est” sono il risultato di un Laboratorio di Laurea strutturatosi attraverso incontri, seminari, comunicazioni specialistiche, esposizioni critiche, che – in una strategia condivisa – ha visto ogni studente elaborare il proprio lavoro nel confronto con gli altri attori del Laboratorio stesso. La ricerca sui “progetti urbani” è stata impostata di modo che ogni laureando fosse messo a conoscenza dei progetti svolti nello stesso ambito territoriale dai colleghi che l’avevano preceduto, così da poter operare in continuità e contribuire a formulare un ragionamento unitario, nel quale ogni progetto costituisse continuazione, verifica o anche variante dei precede…

The projects prepared for "Palermo South-East" are the result of a Graduate Laboratory structured through meetings seminars specialist communications critical exhibitions which - in a shared strategy - saw each student elaborate their work in comparison with others actors of the same Laboratory. The research on "urban projects" was set so that each graduating student was made aware of the projects carried out in the same geographical area by the colleagues who had preceded it so as to be able to operate in continuity and contribute to formulating a unitary reasoning in which each project constituted continuation verification or even variant of the previous ones. These coordinated works have pursued two fundamental objectives: the strengthening of infrastructures and the establishment of specialized public buildings with superior functions aimed at requalifying and regenerating various critical situations with particular attention to the relationship between context and life scenarios. Thus each designer while dealing with a main functional program simultaneously deals with various issues such as the rationalization of the road system the redevelopment of existing buildings the design and refunctionalization of urban services (for example the transformed Central Station in the hotel or the project of a great Mosque)several degree theses have addressed as the main theme or as a question in the background the design of a new bed for the Oreto river and the relative establishment of a park facing it. In this desire to "patch up the wounds" in the different areas of "Palermo South-East" in close relationship with the vicissitudes of the place there is a continuous reference to architectures of all time and some questions involving the functional program are suggested - that identifies the character (or perhaps "type") of what is to be inserted in a given context - and the qualities of living reality as a pivotal material in the design process.Settore ICAR/14 - Composizione Architettonica E Urbana
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Seeing reality through Einstein's eyes: a teaching proposal for special relativity

2021

The teaching of Special Relativity is still a critical issue not only for students but also for teachers. In this paper, we describe the trial of a learning unit on the Special Relativity topic based on Minkowski's approach through spacetime diagrams, following the results in pedagogical researches in this field. The main innovation of our project consists of a mechanical instrument: it allows to physically and mechanically represent Lorentz’s transformations by hands, exploring the effects of a change of the reference frame. Teachers and students can deal “by eye” with unusual phenomena as the loss of simultaneity, time dilation, length contraction, relativistic addition of velocities and …

Theoretical physicssymbols.namesakespecial relativitySpecial Relativity spacetime didactics of Physics High Schools laboratory of Special Relativity.PhilosophySettore FIS/08 - Didattica E Storia Della FisicasymbolsEinsteinlaboratory of special relativityspacetimedidactics of physicsSpecial relativity (alternative formulations)high schools
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L'interazione tra le esperienze formative del laboratorio, del tirocinio e delle lezioni

2012

Per favorire l’acquisizione della competenza professionale specifica del maestro è stata progettata e sperimentata una modalità formativa, rivolta agli studenti iscritti, nell’anno accademico 2008-2009, al primo ed al secondo anno del corso di laurea in Scienze della Formazione Primaria, in grado di integrare la teoria con la pratica. To favor the acquisition of specific professional competence of the teacher has been projected and experimented a training method, revolt to the enrolled students, in academic year 2008-2009, to the first one and the second year of the course of degree in Sciences of the Primary Formation, that integrates theory with practice.

Theory practice professional competence laboratory training lessonTeoria pratica competenza professionale laboratorio tirocinio lezioneSettore M-PED/04 - Pedagogia Sperimentale
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Measurement of the Convective Heat-Transfer Coefficient

2014

We propose an experiment for investigating how objects cool down toward the thermal equilibrium with its surrounding through convection. We describe the time dependence of the temperature difference of the cooling object and the environment with an exponential decay function. By measuring the thermal constant tau, we determine the convective heat-transfer coefficient, which is a characteristic constant of the convection system.

Thermal equilibriumConvectionPhysicsNatural thermal convectionPhysics - Physics EducationFOS: Physical sciencesGeneral Physics and AstronomyHeat transfer coefficientMechanicsLaboratory experiments and apparatusEducationPhysics::Fluid DynamicsPhysics Education (physics.ed-ph)Temperature differenceExponential decayConstant (mathematics)Thermal constantNatural thermal convection; Laboratory experiments and apparatus
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Membrane fluidity of stressed cells of Oenococcus oeni

2000

International audience; The determination of membrane fluidity in whole cells of Oenococcus oeni was achieved by membrane probe 1,6-diphenyl-1,3,5-hexatriene fluorescence anisotropy measurements. The results demonstrated instantaneous fluidity variations with cells directly stressed during the measure. Heat (42°C) or acid (pH 3.2) shocks decreased the anisotropy values (fluidising effects), whereas an ethanol shock (10% ethanol, v/v) increased the membrane rigidity. The velocities of fluidity variation with non-adapted or adapted cells (incubation in inhibitory growth conditions) were compared. The adaptation of the cells to acid conditions had no effect on the membrane fluidity variation a…

Thermal shockStress toleranceMicrobiologychemistry.chemical_compoundMembrane fluiditymedicine[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process EngineeringMembrane fluidityIncubationOenococcus oeniEthanolbiologyEthanolGeneral MedicineHydrogen-Ion Concentrationbiology.organism_classificationAdaptation PhysiologicalGram-Positive CocciMembranechemistryBiochemistryShock (circulatory)Biophysicsmedicine.symptomOenococcus oeniFluorescence labellingFluorescence anisotropyLeuconostocFood Science
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Assessment of the antioxidant and antibacterial activities of different olive processing wastewaters.

2017

Olive processing wastewaters (OPW), namely olive mill wastewater (OMW) and table-olive wastewaters (TOW) were evaluated for their antibacterial activity against five Gram-positive and two Gram-negative bacteria using the standard disc diffusion and thin layer chromatography (TLC)-bioautography assays. Disc diffusion screening and bioautography of OMW were compared to the phenolic extracts of table-olive brines. Positive activity against S. aureus was demonstrated. The optimization of chromatographic separation revealed that hexane/acetone in the ratio of 4:6 was the most effective for phenolic compounds separation. A HPLC-MS analysis was performed showing that only two compounds, hydroxytyr…

Thin-Layer Chromatography0301 basic medicineDPPHStaphylococcuslcsh:MedicineWastewaterPathology and Laboratory MedicineBiochemistryAntioxidantsMass Spectrometrychemistry.chemical_compoundPlant ProductsMedicine and Health SciencesStaphylococcus Aureuslcsh:ScienceChromatography High Pressure LiquidMultidisciplinaryBioautographyAntimicrobialsChromatographic TechniquesOlivesDrugsAgriculture04 agricultural and veterinary sciencesPlants040401 food scienceThin-layer chromatographyBacterial PathogensAnti-Bacterial AgentsHexaneChemistryBioassays and Physiological AnalysisMedical MicrobiologyPhysical SciencesPathogensAntibacterial activityResearch ArticleMicrobial Sensitivity TestsResearch and Analysis MethodsMicrobiologyVegetable OilsFruitsInhibitory Concentration 5003 medical and health sciences0404 agricultural biotechnologyPhenolsPicratesMicrobial ControlOleaAcetonePhenolsMicrobial PathogensPharmacologyChromatographyBacteriaBiphenyl Compoundslcsh:RChemical CompoundsOrganismsBiology and Life SciencesAgronomyTyrosolPlanar Chromatography030104 developmental biologychemistryAntibacterialsHydroxytyrosollcsh:QChromatography Thin LayerBiochemical AnalysisCrop SciencePLoS ONE
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Implementation on NI-SOM sbRIO-9651 and Experimental Validation of Multi-Carrier PWM Techniques for Three-Phase Five Level Cascaded H-Bridge Inverter

2021

Multilevel Power Inverters (MPIs) represent a valid solution to improve the performances of energy production systems from renewable energy sources. Furthermore, the use of novel FPGA control systems allows simplifying the implementation of multicarrier PWM techniques for MPIs with computational benefits. This paper describes the implementation of several multicarrier PWM techniques on NI-SOM sbRIO-9651 for the control of a three-phase five-level cascaded H-bridge inverter. In detail, sbRIO-9651 is a control system in the field of Power Electronics and Drives (PED) programmable in the LabVIEW graphical programming environment. The paper is focused on modulation techniques implementation, te…

Three-phaseComputer scienceFPGA Labview Multicarrier PWM techniques Multilevel power converter sbRIO-9651Control systemPower electronicsElectronic engineeringInverterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciField-programmable gate arrayEnergy (signal processing)Pulse-width modulationPower (physics)
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Teoloģijas un reliģijpētniecības sekcija “Krīzes un reliģija”: tēžu krājums

2021

Ticamības krīze - Latvijas luterāņu baznīcaKārlis IrbeLatvijas Baptistu draudzes - krīzes situācijā:HUMANITIES and RELIGION::Religion/Theology [Research Subject Categories]ticības krīzeKopīgais labumsRomas katoļu baznīcaPāvests FrancisksTeoloģija - Covid-19 pandēmijas laikāaktīvā atvērtā domāšanaSakramentālā praksepacietība
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Oxygen uptake kinetics and energy system's contribution around maximal lactate steady state swimming intensity

2017

Made available in DSpace on 2018-11-26T17:20:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-02-28 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Ministry of Education of Brazil The purpose of this study was to examine the oxygen uptake ((V) over dotO(2)) kinetics and the energy systems' contribution at 97.5, 100 and 102.5% of the maximal lactate steady state (MLSS) swimming intensity. Ten elite female swimmers performed three-to-five 30 min submaximal constant swimming bouts at imposed paces for the determination of the swimming velocity (v) at 100% MLSS based on a 7 x 200 m intermittent incremental protocol until voluntary exhaustion to find the v associated…

Time FactorsAnaerobic ThresholdPhysiologyVelocitylcsh:MedicinePathology and Laboratory MedicineOxygenBiochemistryOxygen uptake kinetics0302 clinical medicineMedicine and Health SciencesPublic and Occupational Healthlcsh:ScienceFatigueMultidisciplinaryChemistryPhysicsTime constantClassical Mechanics16. Peace & justiceSports ScienceBody FluidsChemistryvVO2maxBloodPhysical SciencesLactatesFemaleAnatomyAnaerobic exerciseResearch ArticleChemical ElementsSportsAdolescentchemistry.chemical_elementBioenergetics03 medical and health sciencesYoung AdultMotionAnimal scienceOxygen ConsumptionSigns and SymptomsDiagnostic MedicineHumansLactic AcidSports and Exercise MedicineEnergy systemExerciseSwimmingBehaviorBiological Locomotionlcsh:RBiology and Life Sciences030229 sport sciencesPhysical ActivityIntensity (physics)OxygenKineticsAthletesPhysical FitnessExercise TestPhysical EnduranceRecreationlcsh:QSteady state (chemistry)Energy Metabolism030217 neurology & neurosurgery
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