Smoking and alcohol use among Chileanteenagers aged 10 to 14 years

Abstract Background Few studies in Latin America have explored mental disorder among young offenders, or variables associated with it. Aims Our aim was to test for associations between childhood adversity substance misuse and psychiatric disorders offenders. Methods Sentenced adolescent offenders were recruited from offenders' institutions community centres provided by the Chilean National Service Minors. Psychiatric assessed using Mini International Neuropsychiatric Interview, conducted...

Distinct sources of stress have emerged during the COVID-19 pandemic. Particularly, fear is expected to generate significant psychological burden on individuals and influence either unsafe behavior that may hinder recovery efforts or virus-mitigating behaviors. However, little known about properties measures capture them in research clinical settings. To resolve this gap, we evaluated psychometric a novel measure illness viruses tested its predictive value for future development distress. We...

Factors associated with health promoting behaviors among Chilean adolescentsBackground: Health-promoting are important to prevent diseases and prolong life in the population.People develop these throughout life.However, better benefits for obtained an early development.Aim: To determine prevalence of health-promoting adolescents its factors.Material Methods: Cross-sectional survey performed 1,465 students high, medium low socio-economic status, attending fifth eighth grades schools located a...

Micro-hybrid or "stop-start" developments for automotive applications are continuously growing due to recent European regulations on emissions and pollution. A reinforced starter is able ensure this new function in addition the classical cold start. Such devices must be optimized, especially their process of commutation order minimize commutator brush wears keep device running during whole life vehicle. The performances computed with help a FE model, coupled circuit equation. Brush/segment...

Prevalence of psychiatric disorders among teenage offenders

In some specific manufactured electromechanical applications, power electronic converters must be avoided due to hostile environment. such a context, stand-alone DC machines are good candidates because of their high reliability and low cost. However, the mechanical commutation is big problem in this kind machine especially current voltage applications. Losses arching contacts can significant. The authors present an original technique take into account every electrical aspect brushes...

This paper deals with the modeling of brushed DC motor used as a reinforced starter for micro-hybrid automotive application.The aim such system, also called "stop-start", is to stop combustion engine when vehicle pulls stop, and restart it driver accelerates.A able ensure this new function in addition classical cold start.Then, its life time has be widely increased comparison starter.They have optimized, more especially their process commutation order minimize commutator brush wears, thereby...

This paper presents a fast design method taking into account 3-D effects in reinforced brushed dc motor used as starter automotive application. Because of their low cost and simplicity, starters are micro-hybrid vehicles. The specific geometry such devices induces an axial component the flux which cannot be accounted for by 2-D models. finite element (FE) models suitable this purpose but excessive need CPU time complicates use automatic optimization procedure. We propose to identify overhang...

Abstract Nowadays, research on electromagnetic devices increasingly focuses multiphysics three‐dimensional complex systems. However, this kind of simulations require huge computational resources and consequently very high CPU time. Ristagno et al. proposed a level‐set based method allowing meshing step savings in any iterative processes (as movement modeling or optimization processes). The lies implicit description moving fronts as described the study by Osher (1988). Inspired Räisänen al.,...

This paper presents a hybrid magnetic model combining reluctance network and Laplace's equation resolution using vector potential in the air gap. The coupling of two models is performed by introducing fictive equivalent magnetomotive forces applied to study dc machines used as starter automotive application. Good results are obtained compared with finite-element experimental measurements.

El diagnostico estructural propuesto por el Dr. Otto F. Kernberg y su equipo de trabajo del Instituto Trastornos Personalidad en Nueva York ha sido una gran contribución tanto para la comprensión personalidad como tratamiento estos casos. objetivo presente artículo es realizar revisión actualizada este enfoque, abordando general personalidad, posteriormente profundizar diagnóstico diferencial organización neurótica limítrofe. Además, dentro espectro limítrofe se distinguirá...

In this paper, the main objective is to develop a fast analytical model be used in optimization process or coupled with other models. A reluctance network of DC series machine developed and shows its accuracy robustness thanks consideration armature magnetic reaction (AMR) which an important phenomenon high saturated motors. This validated by statistical way presents computation time equivalent symmetrical machine. The RN FE models efficiency find optimum without needing final step optimization.

This paper describes a method for finite element modelling of transient 2D eddy currents in the nonlinear moving conductor an electromagnetic retarder. The magnetic vector potential A formulation is used, with general single-step time-marching algorithm, and fixed coordinate systems are compared. homogenization technique, inspired by lamination modelling, used to make geometry region invariant along speed direction, order use more direct compute steady state whole rotor. Results compared...

The authors show that the space vector modelling, classically used for synchronous or asynchronous machines, can be applied with profit to DC machines. By leaning on example of a permanent magnets machine and by comparing results modelling experimental measurements, we notice this process applies perfectly allows taking into account effects saturation possible salience armature. This constitutes an effective tool analyze role every element lead optimization approach.

Purpose This paper aims to propose a method evaluate the information obtained on harmonics calculations and estimate precision of results using finite element for an innovative motor topology in which some well-known meshing rules are difficult apply. Design/methodology/approach The same magnetostatic problem is solved with several mesh sizes both scalar vector potentials magnetics formulations complex topology, axial claw pole (ACPM). proposed lies comparison between two weak determine what...

Purpose Optimization processes and movement modeling usually require a high number of simulations. The purpose this paper is to reduce global central processing unit (CPU) time by decreasing each evaluation time. Design Methodology Approach Remeshing the geometry at iteration avoided in proposed method. idea consists using fixed mesh on which functions are projected represent supply. Findings Results very promising. CPU reduced for three dimensional problems almost factor two, keeping low...

This paper presents a hybrid magnetic model combining reluctance network (RN) and Laplace's equation resolution using potential vector in the air gap. The coupling of two models is done by introducing fictive equivalent magneto-motive forces (MMFs) air-gap. Good results are obtained compared to finite element model.