Search results for "ACC"
showing 10 items of 15276 documents
Revisiting the cross‐sectional and prospective association of physical activity with body composition and physical fitness in preschoolers: A composi…
2022
Background Information is limited for the benefits of physical activity (PA) in preschoolers. Previous research using accelerometer-assessed PA may be affected for multicollinearity issues. Objectives This study investigated the cross-sectional and prospective associations of sedentary behaviour (SB) and PA with body composition and physical fitness using compositional data analysis. Methods Baseline PA and SB were collected in 4-year-old (n = 315) using wrist-worn GT3X+ during seven 24 h-periods. Body composition (air-displacement plethysmography) and physical fitness (PREFIT test battery) were assessed at baseline and at the 12-month follow-up. Results Increasing vigorous PA at expenses o…
La seguridad vial laboral: la influencia de los accidentes de tráfico en el entorno laboral
2019
Los desplazamientos relacionados con el trabajo son algo fundamental (e indispensable) para las personas, la industria y la economía del mundo actual. Sin embargo, ello da lugar a altas tasas de siniestralidad vial de los trabajadores, hecho que se ha convertido una preocupación manifiesta para la salud ocupacional y, tratándose de un asunto que involucra la seguridad vial general, también para la salud pública. En este sentido, distintos estudios coinciden en resaltar la necesidad de realizar investigaciones al respecto y establecer líneas de acción de carácter institucional basadas en la evidencia, enmarcadas en la actuación permanente y los estudios epidemiológicos, como primera estrateg…
Las condiciones de acceso al mercado de seguros en el ordenamiento jurídico español
2014
Cuando el operador jurídico aborda el estudio del Derecho de los seguros, resulta necesario deslindar qué parte de este bloque normativo va a ser objeto de análisis. Como delineación, el Derecho de los seguros privados puede definirse como “el conjunto de normas jurídicas que específicamente disciplinan el estatuto del empresario del seguro privado, el de sus colaboradores y el del contrato de seguro”, Derecho en el que confluyen normas de origen público y privado, lo cual tiene su máximo reflejo en la prelación de fuentes que resulta de aplicación. El ordenamiento jurídico español de seguros responde a los mencionados bloques normativos. El estatuto del empresario del seguro privado viene …
Impact Evaluation of Innovative Selective Harmonic Mitigation Algorithm for Cascaded H-Bridge Inverter on IPMSM Drive Application
2021
This paper presents a detailed analysis of the use of a novel Harmonic Mitigation algorithm for Cascaded H-Bridge Multilevel Inverter in electrical drives for the transportation field. For this purpose, an enhanced mathematical model of Interior Permanent Magnet Synchronous Motor (IPMSM), that takes into account simultaneously saturation, cross-coupling, spatial harmonics, and iron loss effects, has been used. In detail, this model allows estimating accurately the efficiency and the torque ripple of the IPMSM, crucial parameters for transportation applications. Moreover, two traditional pulse width modulation strategies, Sinusoidal Phase-Shifted and Switching Frequency Optimal Phase-Shifted…
Tutoraggio didattico tra pari a distanza: una ricerca-intervento svolta con gli studenti universitari
2021
Nell’a. a. 2020-21 è stata svolta una ricerca-intervento sul peer tutoring in ambito universitario, ipotizzato come strumento efficace per ridurre alcuni effetti negativi che la DAD, imposta dalla pandemia da covid-19, aveva provocato durante l’a. a. 2019-20 tra gli studenti iscritti al primo anno del corso di laurea triennale in Scienze dell’Educazione dell’Università di Palermo. 17 studentesse e 2 studenti del secondo anno di questo corso di studi, che avevano completato gli esami dell’anno precedente, dopo aver partecipato tra febbraio e marzo ad una specifica attività formativa, da marzo a giugno 2021 hanno aiutato, ancora in modalità a distanza, 33 studentesse e 2 studenti – loro colle…
Being active in pregnancy: Theory-based factors associated with physical activity among pregnant women.
2018
ABSTRACTAlthough regular physical activity is recommended for pregnant women, compared to pre-pregnancy, antenatal physical activity often reduces or ceases completely. Drawing from the theory of planned behavior, self-determination theory, and theory on self-control, we aimed to test an integrative model of physical activity in a sample of pregnant women. The current study was conducted in Brisbane, Australia, in 2014–2015 using a prospective-correlational design with a one-week follow-up. Participants (N = 207, Time 1; Meanage = 30.03 years, SDage = 4.49 years) completed an initial survey measuring: intrinsic motivation from the self-determination theory, social cognitive constructs from …
Physical Activity-Related Profiles of Female Sixth-Graders Regarding Motivational Psychosocial Variables: A Cluster Analysis Within the CReActivity P…
2020
IntroductionAdolescents’ physical activity (PA) behavior can be driven by several psychosocial determinants at the same time. Most analyses use a variable-based approach that examines relations between PA-related determinants and PA behavior on the between-person level. Using this approach, possible coexistences of different psychosocial determinants within one person cannot be examined. Therefore, by applying a person-oriented approach, this study examined (a) which profiles regarding PA-related psychosocial variables typically occur in female sixth-graders, (b) if these profiles deliver a self-consistent picture according to theoretical assumptions, and (c) if the profiles contribute to t…
Semi densi, semi sottili. Infertilità e Harmoniae Veneris (a proposito di Lucr. IV, 1240-1277)
2010
Indagine sui principi di riproduzione considerati da Lucrezio e sulle forme di accoppiamento, soprattutto in rapporto alla fecondazione umana.
Barthes e il racconto
2017
Barthes ha scritto parecchio sul racconto, e secondo un’opinione diffusa ne è uno dei principali studiosi e interpreti. Ma possiamo dire che fosse realmente interessato a esso? che ne abbia colto l’articolazione formale profonda e le valenze antropologiche? che percepisse l’interesse teorico, al di là del racconto propriamente detto, di quella sua conseguenza metodologica che è la narratività? Le risposte non sono così scontate come sembrerebbe . Da una parte, grazie anche ai suoi scritti, entro il paradigma delle scienze umane – nonostante le continue epifanie di un positivismo redivivo – oggi nessuno dubita che la forma del racconto sia un modello ermeneutico essenziale per una generale c…
Real-time smoothing of car-following data through sensor-fusion techniques
2011
Abstract Observation of vehicles kinematics is an important task for many applications in ITS (Intelligent Transportation Systems). It is at the base of both theoretical analyses and application developments, especially in case of positioning and tracing/tracking of vehicles, car-following analyses and models, navigation and other ATIS (Advanced Traveller Information Systems), ACC (Adaptive Cruise Control) systems, CAS and CWS (Collision Avoidance Systems and Collision Warning Systems) and other ADAS (Advanced Driving Assistance Systems). Modern technologies supply low-cost devices able to collect time series of kinematic and positioning data with medium to very high frequency. Even more da…