Maria M. Prats

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In this work, a Model Based Adaptive Direct Power Control (MB-ADPC) with constant switching frequency for Three-Phase Three-Level Neutral Point Clamped (3L-NPC) converters is proposed. The rectifier and inverter operation mode are used to illustrate the flexibility of the proposed MB-ADPC controller. The control design process is based on the continuous(More)
— In this paper, a novel three-dimensional space vector algorithm for four-legs multilevel converters is presented. It can be applied to active power filters or neutral current compensator applications for compensating harmonics and zero sequence using natural coordinates. This technique greatly simplifies the selection of the 3-D space where a given(More)
BACKGROUND Burnout syndrome is related to cultural and individual factors. The aim of this study was to compare the frequency of burnout and the scores for its three components with the perceptions and the demographic and professional characteristics of the workers. METHODS Burnout syndrome was studied in 11,530 Hispanic Americans and Spanish healthcare(More)
Research on sex differences in empathy has revealed mixed findings. Whereas experimental and neuropsychological measures show no consistent sex effect, self-report data consistently indicates greater empathy in women. However, available results mainly come from separate populations with relatively small samples, which may inflate effect sizes and hinder(More)
AIM To explore the way in which Latin American psychiatrists approach the screening of vascular risk factors in patients receiving antipsychotic medication. METHODS This was a descriptive, cross sectional study that surveyed Latin-American physicians to evaluate differences between groups divided in three main sections. The first section included(More)
OBJECTIVE Determine the frequency of assaults on health workers and characterize aspects that deepen understanding and development of prevention strategies. METHODS A voluntary and confidential electronic survey was conducted through the IntraMed website, a social network of health professionals. Frequency of verbal and physical assaults was analyzed(More)
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