Search results for "Conducta"

showing 10 items of 611 documents

Acoso escolar e ideación suicida: relación con la agresividad, conducta prosocial y factores emocionales

2019

El acoso escolar es una problemática cada vez más frecuente y es motivo de preocupación para los actores involucrados en el proceso educativo, no solo a nivel local en República Dominicana, sino en todo el mundo (Baridon y Martin, 2014; Fine-Davis y Faas, 2014; Inglés et al., 2014; Save the Children, 2016; Schultze-Krumbholz et al., 2015). Los estudios realizados en R.D. indican que la prevalencia del acoso en las escuelas es muy alta, tanto a nivel del sector público (Parada, Ibarra, Burgos y Asuad, 2017; Vargas, Mencía, Fernández, Caamaño y Garrido, 2014), como en los centros educativos privados (Vergés y Guzmán, 2017). Para los estudiantes víctimas de acoso esta situación puede convertir…

UNESCO::PSICOLOGÍA::Evaluación y diagnóstico en psicología::Validez de testsUNESCO::PSICOLOGÍA::Psicología del niño y del adolescente::Psicología escolar:PSICOLOGÍA::Evaluación y diagnóstico en psicología::Validez de tests [UNESCO]:PSICOLOGÍA::Psicología del niño y del adolescente::Psicología escolar [UNESCO]:PSICOLOGÍA::Psicología del niño y del adolescente::Psicología evolutiva [UNESCO]ideación suicidaagresividadautoestimaacoso escolarinestabilidad emocionalUNESCO::PSICOLOGÍA::Psicología del niño y del adolescente::Psicología evolutivaconducta prosocial
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Family, social support and delinquent behavior in adolescence: direct and mediating effects

2005

En este estudio se analizan las relaciones entre las características del sistema familiar (funcionamiento, comunicación y satisfacción familiar), el apoyo social percibido y la conducta delictiva en la adolescencia. La muestra está constituida por 431 adolescentes estudiantes en centros educativos de la Comunidad Valenciana de edades comprendidas entre los 15 y los 17 años. Los resultados muestran efectos directos de los problemas de comunicación con la madre y del apoyo social percibido del padre en la conducta delictiva. Además, se constata un efecto mediador del apoyo social del padre entre los problemas de comunicación con la madre y la implicación del hijo adolescente en actos delictiv…

UNESCO::PSICOLOGÍA::Psicología del niño y del adolescente::Psicología escolar:PSICOLOGÍA [UNESCO]Apoyo social percibidoUNESCO::PSICOLOGÍAEfecto mediadorDelinquent behaviorMediating effectConducta delictivaPerceived social support:PSICOLOGÍA::Psicología del niño y del adolescente::Psicología escolar [UNESCO]Family ; Delinquent behavior ; Perceived social support ; Mediating effectFamiliaFamilyFamilia ; Conducta delictiva ; Apoyo social percibido ; Efecto mediadorAnuario de psicología / The UB Journal of psychology
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Prevalencia de los Trastornos de la Conducta Alimentaria en adolescentes de Castilla-La Mancha

2014

Entre las políticas de prevención de los Trastornos de la Conducta Alimentaria (TCA) en los adolescentes de Castilla-La Mancha, la Consejería de Sanidad se planteó la necesidad de conocer la tasa de conductas alimentarias insanas y la prevalencia de los TCA, tanto en sus formas completas de Anorexia Nerviosa (AN) y Bulimia Nerviosa (BN), como en sus formas incompletas (TCA No Especificados) y subclínicas. El presente estudio analiza el desarrollo teórico a través de las revisiones disponibles sobre prevalencia de TCA. Realiza además un análisis crítico-histórico de las publicaciones españolas en este ámbito, con particular atención a los estudios de prevalencia de TCA que establecen el diag…

UNESCO::PSICOLOGÍA::Psicología general::MetodologíaUNESCO::CIENCIAS MÉDICAS::Epidemiologíabulimia nerviosaprevalenciaadolescentes:PSICOLOGÍA::Psicología general::Metodología [UNESCO]trastornos conducta alimentaria no especificadostrastornos de la conducta alimentaria:CIENCIAS MÉDICAS::Epidemiología [UNESCO]anorexia nerviosaepidemiología
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Programmable VLSI cubic-like function implementation

2006

An analogue VLSI implementation of a cubic-like function is presented, whose design is focused to reduce the circuit complexity. Simulations show that the V–I characteristic of the circuit resembles a cubic function, which can be easily adjusted by changing the bias parameters.

Very-large-scale integrationbusiness.industryComputer scienceTransconductanceElectrical engineeringIntegrated circuitFunction (mathematics)law.inventionComputer Science::Hardware ArchitectureComputer Science::Emerging TechnologieslawOperational amplifierElectronic engineeringElectrical and Electronic EngineeringCircuit complexitybusinessCubic functionElectronics Letters
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Physico-chemical properties of dense water/copper(II) bis(2-ethylhexyl) sulfosuccinate/CCl4 microemulsions

2007

Measurements of some physico-chemical properties (density, viscosity, conductance, infra-red spectra) of water/copper(II) bis(2-ethylhexyl) sulfosuccinate (Cu(DEHSS)2)/CCl4 microemulsions, as a function of the volume fraction O of the dispersed phase (0 < O < 0.6) and of the molar ratio R (R = [water]/[DEHSS−]), have been performed at 25 °C. At each value of R, the density of the micellar phase is practically independent of O whereas the viscosity of microemulsions diverges above threshold O values. A divergent behavior for the electrical conductivity has also been observed but only at certain R values. These results, together with those from infra-red spectra, suggest that in percolated mi…

ViscositychemistryElectrical resistivity and conductivityPhase (matter)Inorganic chemistryVolume fractionAnalytical chemistryConductancechemistry.chemical_elementMicroemulsionCopperMicelle
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Simplified Hybrid PD Model in Voids

2011

In this paper a novel approach to model partial discharges (PD) activity taking place inside a spherical void in epoxy resin system has been traced. The approach is based on a time varying conductance of the inner void, subjected to multistress conditions: voltage, temperature and pressure. A simple lumped circuit macro-model simulates the global effects of PD activity: the different parameters influencing the discharge phenomenon in the void are taking into account by using a physical approach resulting in a time varying conductance inside the circuit. The evaluated PD activity has been compared with experimental and simulated one for the accessible and inaccessible part of the system. A d…

Void (astronomy)Engineeringbusiness.industryPhysical approachConductanceProbability density functionMechanicsEpoxyPD model Partial discharge (PD) Weibull function electrical insulation probability function voidSettore ING-IND/31 - ElettrotecnicaTemperature and pressurevisual_artElectronic engineeringvisual_art.visual_art_mediumbusinessVoltageWeibull distribution
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Gramática y naturaleza humana

1993

El motivo básico del artículo es discutir una interpretación convencionalista de la tesis de Witgenstein acerca de la ‘autonomía de la gramática’ y examinar sus implicaciones con respecto a la posibilidad de entender la conducta de seres humanos pertenecientes a culturas diferentes a la del observador. Se intenta argumentar que, desde una perspectiva wittgensteiniana, podemos atribuir a otras personas determinadas experiencias y acciones, aunque no compartan nuestro sistema de convenciones, en la medida en que reconocemos ciertas pautas de comportamiento de los seres humanos –la ‘conducta común de la humanidad’– como conceptualmente conectadas a aquellas experiencias y acciones. Ello equiva…

WittgensteinconvencionalismoUNESCO::FILOSOFÍA:FILOSOFÍA [UNESCO]conducta humanahistoria natural
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Investigation on Metal–Oxide Graphene Field-Effect Transistors With Clamped Geometries

2019

In this work, we report on the design, fabrication and characterization of Metal-Oxide Graphene Field-effect Transistors (MOGFETs) exploiting novel clamped gate geometries aimed at enhancing the device transconductance. The fabricated devices employ clamped metal contacts also for source and drain, as well as an optimized graphene meandered pattern for source contacting, in order to reduce parasitic resistance. Our experimental results demonstrate that MOGFETs with the proposed structure show improved high frequency performance, in terms of maximum available gain and transition frequency values, as a consequence of the higher equivalent transconductance obtained.

Work (thermodynamics)FabricationMaterials scienceTransconductanceOxide02 engineering and technologySettore ING-INF/01 - Elettronica01 natural scienceslaw.inventionchemistry.chemical_compoundlaw0103 physical sciencesElectrical and Electronic Engineering010302 applied physicsbusiness.industryGrapheneGraphene metal-oxide graphene field-effect transistors (MOGFETs) microwave transistors clamped geometries meandered graphene contacts.TransistorSettore ING-INF/02 - Campi Elettromagnetici021001 nanoscience & nanotechnologyElectronic Optical and Magnetic MaterialschemistryLogic gateParasitic elementOptoelectronics0210 nano-technologybusinessBiotechnologyIEEE Journal of the Electron Devices Society
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Effect of different aqueous solutions of pure salts and salt mixtures in reverse electrodialysis systems for closed-loop applications

2018

Abstract Reverse Electrodialysis (RED) in a closed-loop arrangement is a viable way to convert low-grade heat into electric power. The present work experimentally investigates the use of pure salt- and equimolar two salts-water solutions as feeds in a lab-scale RED unit. RED performances were analysed in terms of Open Circuit Voltage (OCV), stack resistance and corrected power density. The pure salts and the mixtures employed were chosen via a computational analysis. Effect of feed solution velocity and concentration was investigated. Results concerning the pure salt-water experiments show that NH4Cl is the most performing salt in the concentration range probed, while higher power density v…

Work (thermodynamics)Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciMaterials scienceAnalytical chemistrySalt (chemistry)Filtration and Separation02 engineering and technology010402 general chemistry7. Clean energy01 natural sciencesBiochemistryStack (abstract data type)Electrical resistance and conductanceReversed electrodialysisGeneral Materials SciencePhysical and Theoretical ChemistryPower densitychemistry.chemical_classificationAqueous solutionOpen-circuit voltage021001 nanoscience & nanotechnology6. Clean water0104 chemical scienceschemistry0210 nano-technologyReverse Electrodialysis Heat Engine Closed loop RED Salt mixture Salinity Gradient PowerJournal of Membrane Science
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Short-Term Adaptation to Stress and Task-Demands: Covariation of Psychological and Physiological Manifestations

1986

Energetic aspects of adaptation to stress and task demands are reflected in autonomic and somatic nervous system (ANS/SNS) changes (see, eg Lyytinen, 1985). Related psychophysiological individual differences have been illustrated widely in the literature. The reported differences have varied from constitutional ones, like temperament (see, for recent references Nebylitsyn, 1972; Strelau, 1983), via dispositions/traits (Eysenck, 1983) and tonic states (Fahrenberg, Walschburger, Forster, Myrtek and Muller, 1983) to situation-dependent individual differences (eg research on type A; Contrada, Wright and Glass, 1984). The present paper argues that experimential and situational factors are import…

Wrightmedia_common.quotation_subjectStress (linguistics)TemperamentSituational ethicsAdaptation (computer science)PsychologySkin conductanceTerm (time)media_commonDevelopmental psychologyTask (project management)
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