Resumo É alvo central de discussões a temática relacionada à segurança pública no país, especialmente, no tocante aos índices de criminalidade. Este estudo aborda a temática a partir da Teoria Econômica da Escolha Racional e de teorias de base sociológica que buscam explicar as causas do crime. O objetivo do estudo foi identificar fatores determinantes para o controle dos índices de criminalidade a partir de dados do estado do Espírito Santo. Trata-se de um estudo de abordagem quantitativa. Foram utilizados dados secundários, tendo como referência o modelo teórico proposto. Adotou-se, ainda, como método de teste de hipóteses, o modelo de regressão linear, com o auxílio do software SPSS Statistics, versão 25. Os resultados da pesquisa demonstram que o elemento relativo à empregabilidade da população influencia direta e significativamente o controle dos índices de crimes de homicídios dolosos e de crimes contra o patrimônio. Ademais, conjugado ao emprego (atividades laborais formais), os fatores renda e educação da população demonstraram influenciar positivamente no controle dos crimes contra o patrimônio.

Abstract The topic related to public security in Brazil is central in discussions regarding crime rates. This study approaches the theme from the economic theory of rational choice and sociological theories that seek to explain the causes of crime. The study’s objective was to identify determining factors for controlling crime rates based on data from the state of Espírito Santo. This is a study with a quantitative approach. Secondary data were used, based on the proposed theoretical model. The linear regression model was also adopted as a hypothesis testing method, with the aid of the SPSS Statistics software version 25. The results show that the element related to the population’s employability directly and significantly influences the control of crime rates, intentional homicides, and crimes against property. Furthermore, combined with employment (formal labor activities), the population’s income and education positively influence the control of crimes against property.

Resumen La temática relacionada con la seguridad pública en el país es objeto central de discusión, especialmente con respecto a los índices de criminalidad. Este estudio aborda el tema a partir de la teoría económica de la elección racional y las teorías sociológicas que buscan explicar las causas del delito. El objetivo del estudio fue identificar los factores determinantes para el control de los índices de criminalidad con base en datos del estado de Espírito Santo. Este es un estudio con un enfoque cuantitativo. Se utilizaron datos secundarios, basados en el modelo teórico propuesto. El modelo de regresión lineal también se adoptó como método de prueba de hipótesis, con la ayuda del software SPSS Statistics versión 25. Los resultados de la investigación muestran que el elemento relacionado con la empleabilidad de la población influye directa y significativamente en el control de los índices de homicidios dolosos y delitos contra la propiedad. Además, combinado con el empleo (actividades laborales formales), los factores ingresos y educación de la población han demostrado tener una influencia positiva en el control de los delitos contra la propiedad.

Abstract Objective: To evaluate the impact of different levels of positive end-expiratory pressure (PEEP) on gas exchange in patients undergoing coronary artery bypass grafting (CABG). Methods: A randomized clinical trial was conducted with patients undergoing CABG surgery. Patients were randomized into three groups: Group 10, PEEP of 10 cmH2O; Group 12, PEEP of 12 cmH2O; and Group 15, PEEP of 15 cmH2O. After the randomization, all patients underwent gas analysis at three moments: (1) before lung expansion therapy (LET); (2) 30 minutes after LET; and (3) one hour after extubation. Results: Sixty-six patients were studied, of which 61.7% were men, with mean age of 64 ± 8.9 years. Patients allocated to Group 15 showed a significant improvement in gas exchange comparing pre- and post-expansion values (239±21 vs. 301±19, P<0,001) and the increase was maintained after extubation (278±26). Despite the use of high levels of PEEP, no significant hemodynamic change was evidenced. Conclusion: It is concluded that high levels of PEEP (15 cmH2O) are beneficial for the improvement of gas exchange in patients undergoing CABG.

Abstract Introduction: During and after coronary artery bypass grafting, a decline in multifactor lung function is observed. Due to this fact, some patients may benefit from non-invasive ventilation after extubation targeting lung expansion and consequently improved oxygenation. Objective: To test the hypothesis that higher levels of positive end expiration pressure during non-invasive ventilation improves oxygenation in patients undergoing coronary artery bypass grafting. Methods: A randomized clinical trial was conducted at Instituto Nobre de Cardiologia in Feira de Santana. On the first day after surgery, the patients were randomized: Group PEEP 10, Group PEEP 12 and Group PEEP 15 who underwent non-invasive ventilation with positive end expiration pressure level. All patients were submitted to analysis blood pressure oxygen (PaO2), arterial oxygen saturation (SaO2) and oxygenation index (PaO2/FiO2). Results: Thirty patients were analyzed, 10 in each group, with 63.3% men with a mean age of 61.1±12.2 years. Mean pulmonary expansion pre-therapy PaO2 was generally 121.9±21.6 to 136.1±17.6 without statistical significance in the evaluation among the groups. This was also present in PaO2/FiO2 and SaO2. Statistical significance was only present in pre and post PEEP 15 when assessing the PaO2 and SaO2 (P=0.02). Conclusion: Based on the findings of this study, non-invasive ventilation with PEEP 15 represented an improvement in oxygenation levels of patients undergoing coronary artery bypass grafting.