Search results for " física"

showing 10 items of 920 documents

Una proposta per prevenir l'assetament escolar en les classes d'Educació Física basada en l'aprenentatge cooperatiu

2020

L'objectiu d'aquest estudi és avaluar l'impacte d'una unitat didàctica (UD) d'Educació Física (EF) basada en l'aprenentatge cooperatiu (AC) en l'ambient de respecte, integració grupal i confiança. Aquesta UD s'ha realitzat amb un grup de 1r d'ESO. Per avaluar aquest impacte s'ha dut a terme un estudi de cas del qual s'han extret dades mitjançant l'observació dels participants. Aquestes dades s'han analitzat d'acord amb unes categories prèviament establides mitjançant la consulta de la literatura especialitzada. Els resultats mostren indicis per afirmar que l'AC provoca que augmente la confiança, la integració grupal i el respecte entre l'alumnat. Com a conclusió, es destaca la possibilitat …

AprenentatgeEducació física
researchProduct

El cuento motor como recurso didáctico provocativo para fomentar la cooperación y la empatía.

2022

Este artículo trata sobre el uso de un cuento motor, creado ex profeso de forma colaborativa por profesorado de Educación Física de Primaria y Educación Superior. La experiencia pedagógica tiene como propósito desarrollar la compasión y la empatía del alumnado hacia la inclusión mediante la cooperación en diferentes retos propuestos. El cuento motor se implementó en dos grupos de 3º de Primaria de dos centros públicos diferentes y, de forma complementaria, en dos jornadas destinadas a la formación de profesorado. La recogida de datos se realizó sobre todo mediante diarios de observación, la grabación de las dos sesiones en Primaria y un grupo de discusión posterior al visionado de la experi…

AprenentatgeEducació físicaProfessors FormacióCooperació educativa
researchProduct

A quantum mechanics-molecular mechanics study of dissociative electron transfer : The methylchloride radical anion in aqueous solution

2002

The dissociative electron transfer reaction CH3Cl+e−→CH3•+Cl− in aqueous solution is studied by using a QM/MM method. In this work the quantum subsystem (a methylchloride molecule plus an electron) is described using density functional theory while the solvent (300 water molecules) is described using the TIP3P classical potential. By means of molecular dynamics simulations and the thermodynamic integration technique we obtained the potential of mean force (PMF) for the carbon–chlorine bond dissociation of the neutral and radical anion species. Combining these two free energy curves we found a quadratic dependence of the activation free energy on the reaction free energy in agreement with Ma…

Aqueous solutionChemistryGeneral Physics and AstronomyThermodynamic integrationFree radicalsMolecular dynamics methodOrganic compounds ; Dissociation ; Charge exchange ;Free radicals ; Negative ions ; Molecular dynamics method ; Digital simulationKinetic energyNegative ionsUNESCO::FÍSICA::Química físicaMolecular dynamicsElectron transferQuantum mechanicsOrganic compoundsMoleculeDensity functional theoryPhysical and Theoretical ChemistryPotential of mean forcePhysics::Chemical PhysicsCharge exchangeDigital simulation:FÍSICA::Química física [UNESCO]Dissociation
researchProduct

BIOMECHANICAL FACTORS TO BE TAKEN INTO ACCOUNT TO PREVENT INJURIES AND IMPROVE SPORTING PERFORMANCE ON ARTIFICIAL TURF

2009

This article reviews existing knowledge concerning the epidemiology, instruments and regulatory criteria currently used to evaluate artificial turf soccer pitches. Recent years have seen tremendous growth in the use of artificial turf as a playing surface for sports (rugby, soccer, American football…) and the problems traditionally associated with artificial turf and its relationship with a higher percentage of injuries seem to be disappearing. The contribution of biomechanics to the development of new techniques and instruments for analysing the properties and characteristics of grass pitches has contributed towards close collaboration with the regulatory bodies of different sporting organ…

Architectural engineeringEngineeringbusiness.industryEpidemiologyArtificial turfeducationFootballAmerican footballPhysical Therapy Sports Therapy and RehabilitationFootball:CIENCIAS MÉDICAS ::Otras especialidades médicas [UNESCO]Artificial turf; Epidemiology; Biomechanics; Regulation; FootballUNESCO::CIENCIAS MÉDICAS ::Otras especialidades médicasLawArtificial turfEducación Física y DeportivaBiomechanicslcsh:Sports medicinebusinessFootball.lcsh:RC1200-1245human activitiesRegulationJournal of Human Sport and Exercise
researchProduct

Qüestions sòcio-científiques i debats per a millorar l'argumentació en classes de Física i Química

2017

En aquesta investigació s’estudia l’ús de les qüestions sòcio-científiques i els debats per a millorar l’argumentació a les classes de Física i Química. Els problemes que s’aborden al llarg de l’estudi són: Quines habilitats argumentatives en ciència tenen els alumnes d’ESO i Batxillerat? En quina mesura l’ensenyament tradicional de la Física i Química potencia l’habilitat argumentativa dels alumnes? Pot la realització de debats sòcio-científics millorar aquesta habilitat? Per a donar resposta a les dos primeres preguntes a manera de diagnòstic es proposa la següent primera hipòtesi: Els alumnes de Secundària tenen un baix nivell d’habilitat argumentativa perquè l’argumentació és un procedi…

ArgumentacióCapacitats argumentativesQüestions sòcio-científiquesDebats:PEDAGOGÍA [UNESCO]Ensenyament de Física i QuímicaUNESCO::PEDAGOGÍA
researchProduct

Quaestiones super Metaphysicam Aristotelis

Sign.: a8, b-g6, h8 L. gòt. - 3 mides. - 2 col. - 68 lín. - Inic. grav. - Min. p. inic. - Registre. - Llegendes de foli. - Filigr.: balança encerclada

Aristòtil 384-322 aC. Física Crítica i interpretació Obres anteriors al 1800 lemacAristòtil 384-322 aC. Física Crítica i interpretació Obres anteriors al 1800
researchProduct

A theory ofnonverticaltriplet energy transfer in terms of accurate potential energy surfaces: The transfer reaction from π,π* triplet donors to 1,3,5…

2004

Triplet energy transfer (TET) from aromatic donors to 1,3,5,7-cyclooctatetraene (COT) is an extreme case of "nonvertical" behavior, where the transfer rate for low-energy donors is considerably faster than that predicted for a thermally activated (Arrhenius) process. To explain the anomalous TET of COT and other molecules, a new theoretical model based on transition state theory for nonadiabatic processes is proposed here, which makes use of the adiabatic potential energy surfaces (PES) of reactants and products, as computed from high-level quantum mechanical methods, and a nonadiabatic transfer rate constant. It is shown that the rate of transfer depends on a geometrical distortion paramet…

Arrhenius equationGeneral Physics and AstronomyTriplet stateMolecular configurationsAcceptorPotential energyGround statesUNESCO::FÍSICA::Química físicaCyclooctatetraenechemistry.chemical_compoundsymbols.namesakeTransition state theoryOrganic compounds ; Potential energy surfaces ; Triplet state ; Ground states ; Molecular configurationschemistryPotential energy surfacesOrganic compoundssymbolsMoleculePhysics::Chemical PhysicsPhysical and Theoretical ChemistryTriplet stateAtomic physics:FÍSICA::Química física [UNESCO]Adiabatic processThe Journal of Chemical Physics
researchProduct

Artes marciales japonesas: prácticas corporales representativas de su identidad cultural

2011

La implantación y difusión de las artes marciales japonesas en Occidente supuso la importación de prácticas socioculturales privadas de las premisas de su contexto de origen. ¿Cómo afrontar estas prácticas que son ajenas a nuestra identidad cultural? Una interpretación estricta exige entenderlas como prácticas corporales con una idiosincrasia cultural, caracterizadas por incorporar una experiencia vivencial en la que el cuerpo ocupa un lugar preeminente. Su enseñanza y aprendizaje se establecen a través de un sistema triangular integrado por una esencia espiritual, una forma técnica y una estructura física (sin-gi-tai), que se inserta en un proceso singular (shu-ha-ri).

Artes marciales: educación. Budo. Enseñanza. Mente y cuerpo.Cultural identityEducaciónmedia_common.quotation_subjectTriangular systemsArt historyFace (sociological concept)Context (language use)Educationlcsh:GV557-1198.995Physical structureEducação FísicaMartial arts: education. Budo. Teaching. Mind and bodymedia_commonlcsh:SportsEsportslcsh:LC8-6691Martial artslcsh:Special aspects of educationInterpretation (philosophy)ArtDeporteArtes marcialesBudoEthnologyPerformance artMente y cuerpoArtes marciais: educação. Budo. Ensino. Mente e corpo.Enseñanza
researchProduct

Reconstruction of inclined air showers detected with the Pierre Auger Observatory

2014

We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $60^\circ$ detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is evaluated using simulated showers to test its performance. The energy of the cosmic rays is calibrated using a sub-sample of events reconstructed with both the fluorescence and surface array techniques. The reconstruction method described here provides the basis of complementary analyses including an…

AstrofísicaAstronomyCiencias Físicas01 natural sciencesultra high energy cosmic rayHigh Energy Physics - Experiment//purl.org/becyt/ford/1 [https]ENERGYHigh Energy Physics - Experiment (hep-ex)EXPERIMENTS[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]HIGHPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Astrophysics::Instrumentation and Methods for AstrophysicsPierre Auger ObservatoryCascadeComputingMethodologies_DOCUMENTANDTEXTPROCESSINGFísica nuclearAstrophysics - High Energy Astrophysical PhenomenaCIENCIAS NATURALES Y EXACTASNormalization (statistics)[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]COSMICAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesCosmic ray[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]0103 physical sciencesEnergy spectrum010306 general physicsULTRAZenithShower reconstructionPierre Auger ObservatoryMuon010308 nuclear & particles physics[ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]FísicaAstronomy and Astrophysics//purl.org/becyt/ford/1.3 [https]Ultra-high energy cosmic raysRAYSComputational physicsAstronomíaInclined extensive air showersExperimental High Energy Physicscosmic ray experiments[ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Energy (signal processing)Journal of Cosmology and Astroparticle Physics
researchProduct

EVIDENCE OF NON-THERMAL X-RAY EMISSION FROM HH 80

2013

Protostellar jets appear at all stages of star formation when the accretion process is still at work. Jets travel at velocities of hundreds of km s -1, creating strong shocks when interacting with the interstellar medium. Several cases of jets have been detected in X-rays, typically showing soft emission. For the first time, we report evidence of hard X-ray emission possibly related to non-thermal processes not explained by previous models of the post-shock emission predicted in the jet/ambient interaction scenario. HH 80 is located at the south head of the jet associated with the massive protostar IRAS 18162-2048. It shows soft and hard X-ray emission in regions that are spatially separate…

AstrofísicaCiencias AstronómicasCiencias FísicasAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesSynchrotron radiationAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsIndividual: Iras 18162-2048 [Stars]//purl.org/becyt/ford/1 [https]Herbig-Haro objects ISM: jets and outflows radiation mechanisms: non-thermal stars: individual: IRAS 18162-2048 stars: pre-main sequence X-rays: generalHigh Energy Physics - Phenomenology (hep-ph)Herbig-Haro objectsGeneral [X-Rays]jets and outflows radiation mechanisms: non-thermal stars: individual: IRAS 18162-2048 stars: pre-main sequence X-rays: general [Herbig-Haro objects ISM]Jets And Outflows [Ism]ThermalProtostarstars: individualAstrophysics::Galaxy AstrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsStar formationX-rayAstronomy and Astrophysics//purl.org/becyt/ford/1.3 [https]radiation mechanisms: non-thermalHerbig-Haro ObjectsAstrophysics - Astrophysics of GalaxiesAccretion (astrophysics)Non-Thermal [Radiation Mechanisms]AstronomíaInterstellar mediumHigh Energy Physics - PhenomenologyISM: jets and outflowsSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)Astrophysics - High Energy Astrophysical PhenomenaCIENCIAS NATURALES Y EXACTASThe Astrophysical Journal
researchProduct