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Resumo Objetivo Sintetizar e analisar as evidências científicas acerca do empoderamento estrutural dos enfermeiros, especificamente no contexto da emergência. Métodos Revisão integrativa da literatura realizada nas bases de dados eletrônicas: Lilacs, PubMed, Scopus, Web of Science e Embase. Foram identificados 174 artigos nas bases de dados, considerando-se os critérios de inclusão e exclusão: estudos originais, nos idiomas português, inglês e espanhol, publicados a partir de 1996 e cujo escopo fossem os trabalhos acerca do empoderamento estrutural de enfermeiros atuantes nos diversos cenários da emergência. Após a avaliação e os refinamentos dos trabalhos por intermédio dos critérios estabelecidos, obteve-se um total de seis estudos para análise. Resultados Foram estabelecidas duas categorias temáticas para sintetizar o conhecimento: "as dimensões do empoderamento estrutural dos enfermeiros da emergência" e "a relação do empoderamento estrutural dos enfermeiros com outras variáveis e seu impacto no contexto da emergência". Essas categorias temáticas permitiram evidenciar que a oportunidade é fundamental para o empoderamento do enfermeiro nesse contexto, além disso, observou-se a relevância da liderança e o ambiente de trabalho como componentes importantes que influenciam no empoderamento e na prática profissional do enfermeiro. Conclusão O empoderamento estrutural é significativo para prática profissional do enfermeiro no contexto da emergência, pois ter acesso às dimensões de empoderamento resulta em autonomia no trabalho, níveis maiores de autoeficácia e melhoria na qualidade e segurança da assistência prestada.

Resumen Objetivo Sintetizar y analizar las evidencias científicas sobre el empoderamiento estructural de los enfermeros, específicamente en el contexto de emergencias. Métodos Revisión integradora de la literatura realizada en las bases de datos electrónicas Lilacs, PubMed, Scopus, Web of Science y Embase. Se identificaron 174 artículos en las bases de datos, con los siguientes criterios de inclusión y exclusión: estudios originales, en portugués, inglés y español, publicados a partir de 1996, cuyo alcance eran los trabajos sobre el empoderamiento estructural de enfermeros que trabajan en diferentes escenarios de emergencias. Después de la evaluación y la refinación de los trabajos mediante los criterios establecidos, se obtuvo un total de seis estudios para el análisis. Resultados Se establecieron dos categorías temáticas para sintetizar el conocimiento: "las dimensiones del empoderamiento estructural de los enfermeros de emergencias" y "la relación del empoderamiento estructural de los enfermeros con otras variables y el impacto en el contexto de emergencias". Estas categorías temáticas permitieron evidenciar que la oportunidad es fundamental para el empoderamiento de los enfermeros en este contexto. Además, se observó la relevancia del liderazgo y del ambiente de trabajo como componentes importantes que influyen en el empoderamiento y en la práctica profesional de los enfermeros. Conclusión El empoderamiento estructural es significativo para la práctica profesional de los enfermeros en el contexto de emergencias, ya que tener acceso a las dimensiones del empoderamiento tiene como resultado la autonomía en el trabajo, mayores niveles de autoeficacia y una mejora de la calidad y seguridad de la atención brindada.

Abstract Objective to synthesize and analyze the scientific evidence on the structural empowerment of nurses, specifically in the context of the emergency room. Methods An integrative literature review was carried out using the electronic databases Lilacs, PubMed, Scopus, Web of Science and Embase. 174 articles were identified in the databases, considering the inclusion and exclusion criteria: original studies, in Portuguese, English and Spanish, published from 1996 onwards and whose scope was work on the structural empowerment of nurses working in the various emergency scenarios. After evaluating and refining the studies using the established criteria, a total of six studies were obtained for analysis. Results Two thematic categories were established to synthesize the knowledge: "the dimensions of structural empowerment of emergency nurses" and "the relationship between nurses' structural empowerment and other variables and their impact in the emergency context". These thematic categories made it clear that opportunity is fundamental to nurses' empowerment in this context, as well as the relevance of leadership and the work environment as important components that influence nurses' empowerment and professional practice. Conclusion Structural empowerment is significant for nurses' professional practice in the context of emergencies, since having access to the dimensions of empowerment results in autonomy at work, higher levels of self-efficacy and an improvement in the quality and safety of the care provided.

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OBJECTIVES: to identify scientific evidence regarding the use of Lean Healthcare approach in the hospitalization and patient discharge process. METHODS: this is an Integrative Review conducted in the PubMed, LILACS, SCOPUS, CINAHL, Web of Science, and Embase databases. RESULTS: out of 904 records identified, three were included in this review. The studies demonstrated that when applied to discharge planning, the Lean philosophy brings favorable results, promoting improvements in the communication process, as well as assisting in workflow organization, with a reduction in length of stay and improvement in the quality of care. FINAL CONSIDERATIONS: although the Lean methodology presents positive results, it is considered that the application of the philosophy in healthcare institutions is still not sustainable, as it is often restricted to specific departments or services. Thus, to maximize the success of implementation, the Lean philosophy needs to be incorporated into the organizational culture, representing the greatest challenge.

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Copper nitrite reductase mimetics were synthesized using three new tridentate ligands sharing the same N,N,N motif of coordination. The ligands were based on L-proline modifications, attaching a pyridine and a triazole to the pyrrolidine ring, and differ by a pendant group (R = phenyl, n-butyl and n-propan-1-ol). All complexes coordinate nitrite, as evidenced by cyclic voltammetry, UV-Vis, FTIR and electron paramagnetic resonance (EPR) spectroscopies. The coordination mode of nitrite was assigned by FTIR and EPR as κ2O chelate mode. Upon acidification, EPR experiments indicated a shift from chelate to monodentate κO mode, and 15N NMR experiments of a Zn2+ analogue, suggested that the related Cu(II) nitrous acid complex may be reasonably stable in solution, but in equilibrium with free HONO under non catalytic conditions. Reduction of nitrite to NO was performed both chemically and electrocatalytically, observing the highest catalytic activities for the complex with n-propan-1-ol as pendant group. These results support the hypothesis that a hydrogen bond moiety in the secondary coordination sphere may aid the protonation step.

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Altered sensitivity to the chronotropic and inotropic effects of catecholamines and reduction in ß1/ß2-adrenoceptor (ß1/ß2-AR) ratio were reported in failing and in senescent human heart, as well as in isolated atria and ventricle of rats submitted to stress. This was due to downregulation of ß1-AR with or without up-regulation of ß2-AR. AIMS: To investigate the stress-induced behavior of ß1-AR in the heart of mice expressing a non-functional ß2-AR subtype. The guiding hypothesis is that the absence of ß2-AR signaling will not affect the behavior of ß1-AR during stress and that those are independent processes. MATERIALS AND METHODS: The chronotropic and inotropic responses to ß-AR agonists in isolated atria of stressed mice expressing a non-functional ß2-AR were analyzed. The mRNA and protein expressions of ß1- and ß2-AR were also determined. KEY FINDINGS: No deaths were observed in mice under stress protocol. Atria of stressed mice displayed reduced sensitivity to isoprenaline compared to the controls, an effect that was abolished by the ß2- and ß1-AR antagonists 50 nM ICI118,551 and 300 nM CGP20712A, respectively. Sensitivity and maximum response to the ß-agonists dobutamine and salbutamol were not altered by stress or ICI118,551. The responses to dobutamine and salbutamol were prevented by CGP20712A. The expression of ß1-AR was reduced at protein levels. SIGNIFICANCE: Collectively, our data provide evidence that the cardiac ß2-AR is not essential for survival in a stressful situation and that the stress-induced reduction of ß1-AR expression was independent of the ß2-AR presence.

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Resumo Objetivo Analisar a incidência e a evitabilidade de eventos adversos em pacientes adultos internados em uma unidade de pronto atendimento no município do interior mineiro. Métodos Estudo de coorte, com revisão retrospectiva de 296 prontuários por meio do uso de formulários de rastreamento (fase 1) e avaliação (fase 2), preenchidos por profissionais não médicos e médico, respectivamente. Na primeira fase foram avaliados os dados demográficos, condição clínica dos pacientes, potenciais eventos adversos, e a verificação da qualidade das informações registradas nos prontuários. Na segunda fase, identificou-se e caracterizou-se os eventos adversos previamente rastreados. Resultados Observou-se a predominância de pessoas do sexo masculino, da raça branca, com 60 anos ou mais. A incidência de eventos adversos acumulada foi de 4,4% (n=13), sendo todos considerados evitáveis, e caracterizados como de gravidade leve, em sua maioria. De acordo com a natureza, 81,2% dos eventos adversos estavam relacionados ao cuidado em geral. Já em relação aos fatores intrínsecos e extrínsecos, encontrou-se uma média de 1,17 e 1,5 por paciente, respectivamente. Constatou-se que 17 pacientes foram identificados com potencial evento adverso, com 22 incidentes na análise. Conclusão Identificou-se que 100% dos eventos adversos eram evitáveis e a maioria relacionados ao cuidado em geral. Esses achados reforçam a necessidade de se avaliar e compreender a incidência e a evitabilidade dos eventos adversos em unidades de pronto atendimento, o que permite o planejamento e implementação de estratégias que visem o desenvolvimento de ações de controle e resposta a estes eventos, garantindo um atendimento seguro e de qualidade.

Resumen Objetivo Analizar la incidencia y la evitabilidad de eventos adversos en pacientes adultos internados en una unidad de pronta atención en un municipio del interior del estado de Minas Gerais. Métodos Estudio de cohorte, con revisión retrospectiva de 296 historias clínicas mediante el uso de formularios de rastreo (fase 1) y evaluación (fase 2), completados por profesionales no médicos y médicos, respectivamente. En la primera fase se evaluaron los datos demográficos, la condición clínica de los pacientes, los potenciales eventos adversos y la verificación de la calidad de la información registrada en las historias clínicas. En la segunda fase, se identificaron y caracterizaron los eventos adversos previamente rastreados. Resultados Se observó la predominancia de personas de sexo masculino, de raza blanca, de 60 años o más. La incidencia de eventos adversos acumulada fue del 4,4 % (n=13), todos fueron considerados como evitables y caracterizados de gravedad baja, en su mayoría. De acuerdo con la naturaleza, el 81,2 % de los eventos adversos estuvo relacionado con el cuidado en general. Por otro lado, con relación a los factores intrínsecos y extrínsecos, se observó un promedio de 1,17 y 1,5 por paciente, respectivamente. Se constató que 17 pacientes fueron identificados con evento adverso potencial, con 22 incidentes en el análisis. Conclusión Se identificó que el 100 % de los eventos adversos era evitable y la mayoría relacionados con el cuidado en general. Estos resultados refuerzan la necesidad de analizar y comprender la incidencia y la evitabilidad de los eventos adversos en unidades de pronta atención, lo que permite la planificación e implementación de estrategias que busquen la elaboración de acciones de control y respuesta a estos eventos, y así garantizar una atención segura y de calidad.

Abstract Objective To analyze the incidence and avoidability of adverse events in adult patients hospitalized in an emergency care unit in the countryside of Minas Gerais. Methods A cohort study, with a retrospective review of 296 medical records using screening (phase 1) and evaluation (phase 2) forms, completed by non-medical professionals and physicians, respectively. In the first phase, the demographic data, clinical condition of the patients, potential adverse events, and the verification of the quality of the information recorded in the medical records were evaluated. In the second phase, previously tracked adverse events were identified and characterized. Results There was a predominance of men, white, aged 60 or older. The cumulative incidence of adverse events was 4.4% (n=13), all of which were considered preventable, and mostly characterized as mild in severity. According to nature, 81.2% of adverse events were related to care in general. In relation to intrinsic and extrinsic factors, an average of 1.17 and 1.5 per patient, respectively, was found. It was found that a total of 17 patients were identified with potential adverse events, with 22 incidents in the analysis. Conclusion It was identified that 100% of adverse events were preventable and most related to general care. These findings reinforce the need to assess and understand the incidence and preventability of adverse events in emergency care units, which allows for the planning and implementation of strategies aimed at the development of control and response actions to these events, ensuring safe and quality care.

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ABSTRACT Objectives: to identify scientific evidence regarding the use of Lean Healthcare approach in the hospitalization and patient discharge process. Methods: this is an Integrative Review conducted in the PubMed, LILACS, SCOPUS, CINAHL, Web of Science, and Embase databases. Results: out of 904 records identified, three were included in this review. The studies demonstrated that when applied to discharge planning, the Lean philosophy brings favorable results, promoting improvements in the communication process, as well as assisting in workflow organization, with a reduction in length of stay and improvement in the quality of care. Final Considerations: although the Lean methodology presents positive results, it is considered that the application of the philosophy in healthcare institutions is still not sustainable, as it is often restricted to specific departments or services. Thus, to maximize the success of implementation, the Lean philosophy needs to be incorporated into the organizational culture, representing the greatest challenge.

RESUMEN Objetivos: identificar evidencia científica sobre el uso del enfoque Lean Healthcare en el proceso de hospitalización y alta del paciente. Métodos: se realizó una revisión integrativa en las bases de datos PubMed, LILACS, SCOPUS, CINAHL, Web of Science y Embase. Resultados: de los 904 registros identificados, se incluyeron tres en esta revisión. Los estudios demostraron que, cuando se aplica en la planificación del alta, la filosofía Lean produce resultados favorables al mejorar la comunicación y ayudar a organizar el flujo de trabajo, reducir el tiempo de estancia y mejorar la calidad de la atención. Consideraciones Finales: aunque la metodología Lean muestra resultados positivos, su aplicación en las instituciones de salud no es sostenible, ya que a menudo se limita a algunos departamentos o servicios. Por lo tanto, para maximizar el éxito de la implementación, la filosofía Lean debe ser incorporada a la cultura organizacional, lo que representa el mayor desafio.

RESUMO Objetivos: identificar evidências científicas acerca da utilização do Lean Healthcare no processo de hospitalização e de alta do paciente. Métodos: trata-se de uma Revisão Integrativa realizada nas bases de dados PubMed, LILACS, SCOPUS, CINAHL, Web of Science e Embase. Resultados: dos 904 registros identificados, três foram incluídos nesta revisão. Os estudos demonstraram que, quando aplicada ao planejamento de alta, a filosofia Lean traz resultados favoráveis, promovendo melhorias no processo de comunicação, além de auxiliar na organização do fluxo de trabalho, com redução do tempo de permanência e melhoria na qualidade do cuidado. Considerações Finais: apesar da metodologia Lean apresentar resultados positivos, considera-se que sua aplicação nas instituições de saúde não é sustentável, uma vez que, na maioria das vezes, se restringe apenas a alguns setores e/ou serviços. Assim, para maximizar o sucesso da implementação, a filosofia Lean precisa ser incorporada à cultura organizacional, representando o maior desafio.

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In intensive beef cattle production systems, silage, corn, soy bean, and their coproducts are commonly used as feed. However, these ingredients are highly susceptible to contamination by fungi and mycotoxins, which may lead to immunological challenges and reduce animal production. The aim of the present study was to evaluate the effects of mycotoxin contamination of diet on intake, digestibility, and performance of heifers. Twenty non-pregnant (Nellore) heifers (age, >18 months; initial body weight, 348±30 kg) were used and randomly distributed in two treatments: (1) control (non-contaminated diet) and (2) zearalenone-contaminated diet (300 ppb). The diet comprised 70% corn silage and 30% concentrate. Individual dry matter intake and digestibility were estimated using external and internal markers. Heifer body weight was evaluated every week without fasting to calculate performance. The experimental design was completely randomized. Each animal was considered one experimental unit. Assumptions were tested for variance analyses (error normality, independence of errors, and homogeneity of variances) (p<0.05). There were no differences in dry matter intake (p=0.96) and digestibility (p=0.62). Performance (kg/day) did not vary as a function of zearalenone ingestion (p=0.68). Therefore, contamination of diet with 300 ppb zearalenone did not affect the intake, digestibility, and performance of feedlot-finished heifers.

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OBJECTIVES: to identify and analyze the knowledge produced in literature about authentic leadership in the educational system, as well as in nursing education. METHODS: an integrative review, carried out in the Scopus, Web of Science, CINAHL, MEDLINE/PubMed, ERIC, LILACS databases. Articles that addressed authentic leadership in the educational system from a general perspective and within the nursing scope, as well as teaching practices of this leadership model, were eligible. RESULTS: twenty-three articles met the inclusion criteria, most published in 2019, highlighting studies in the context of teaching, with a predominance in the nursing course and which were synthesized into three thematic categories. FINAL CONSIDERATIONS: it was found that the higher the levels of authentic leadership in the educational system, the higher the rates of other positive factors related to it, such as trust, involvement, academic optimism, responsibility, creativity, among others.

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Random lasers (RLs) are remarkable experimental platforms to advance the understanding of complex systems phenomena, such as the replica-symmetry-breaking (RSB) spin glass phase, dynamics modes correlations, and turbulence. Here we study these three phenomena jointly in a Nd:YAG based RL synthesized for the first time using a spray pyrolysis method. We propose a couple of modified Pearson correlation coefficients that are simultaneously sensitive to the emergence and fading out of photonic intermittency turbulent-like effects, dynamics evolution of modes correlations, and onset of RSB behavior. Our results show how intertwined these phenomena are in RLs, and suggest that they might share some common underlying mechanisms, possibly approached in future theoretical models under a unified treatment.

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Milk production is an important economic activity in Brazil. Dairy farmers would benefit from animal breeding programs that aid in identification and selection of animals with the best cost/benefit ratio to maximize productivity, and additionally provide advice on disposal of less productive animals. This study aims to estimate the heritability and repeatability of milk production corrected for 305 days (PL305) in a herd of Girolando cattle. We analyzed 528 lactations in 251 cows. For the analysis, uniform a priori distribution was defined for systematic effects. Gaussian and inverted Wishart distributions were defined as a priori distributions for random effects. The variance components were estimated based on Bayesian inference using the MCMCglmm function available in the MCMCglmm package of the R software. Convergence was verifed with the Geweke test available in the R software. The heritability and repeatability were estimated from the variance component results. Heritability was at 0.28, suggesting that selection for the milk production trait leads to efficient genetic progress in the herd. Phenotypic variance was mainly due to environmental variance; therefore, the phenotype of individuals should not be considered as indicator for additive genetic variance. Repeatability was at 0.93, indicating that the first performance of the animals based on milk production average is a good indicator of the second, and the data could be used for disposal decisions.(AU)

A produção de leite é uma das atividades econômicas mais importantes da agropecuária brasileira. Produtores podem usufruir de programas de melhoramento genético que permitem a identificação dos melhores animais e sua seleção para maximizar a produtividade com a melhor relação custo/benefício, além do aconselhamento do descarte de animais menos produtivos. Objetivou-se estimar a herdabilidade e repetibilidade da produção de leite corrigida para 305 dias (PL305) de um rebanho de bovinos da raça Girolando. Foram analisadas 528 lactações de 251 vacas. Para análise foi definida a distribuição uniforme a priori para efeitos sistemáticos. As distribuições de Wishart gaussiana e invertida foram definidas como distribuições a priori para efeitos aleatórios. Os componentes de variância foram estimados utilizando inferência bayesiana pela função MCMCglmm disponível no pacote MCMCglmm do software R. A convergência foi verificada pelo teste de Geweke disponível no software R. Após a obtenção dos componentes de variância foram estimados a herdabilidade e repetibilidade. A herdabilidade observada foi 0,28, o que sugere que a seleção para esta característica resultará em progresso genético eficiente no rebanho. A maior parte da variância fenotípica é devido a variância ambiental, com isso, o fenótipo dos indivíduos não é um bom indicador da variância genética aditiva. A repetibilidade foi de 0,93, indicando que o primeiro desempenho dos animais é considerado um bom indicador do segundo, podendo ser utilizadas em decisões de descarte.(AU)

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ABSTRACT Objectives: to identify and analyze the knowledge produced in literature about authentic leadership in the educational system, as well as in nursing education. Methods: an integrative review, carried out in the Scopus, Web of Science, CINAHL, MEDLINE/PubMed, ERIC, LILACS databases. Articles that addressed authentic leadership in the educational system from a general perspective and within the nursing scope, as well as teaching practices of this leadership model, were eligible. Results: twenty-three articles met the inclusion criteria, most published in 2019, highlighting studies in the context of teaching, with a predominance in the nursing course and which were synthesized into three thematic categories. Final Considerations: it was found that the higher the levels of authentic leadership in the educational system, the higher the rates of other positive factors related to it, such as trust, involvement, academic optimism, responsibility, creativity, among others.

RESUMEN Objetivos: identificar y analizar el conocimiento producido en la literatura sobre el liderazgo auténtico en el sistema educativo, así como en la formación de enfermería. Métodos: una revisión integradora, realizada en bases de datos Scopus, Web of Science, CINAHL, MEDLINE/PubMed, ERIC, LILACS. Fueron elegibles los artículos que abordaran el liderazgo auténtico en el sistema educativo desde una perspectiva general y en el ámbito de la enfermería, así como las prácticas docentes de este modelo de liderazgo. Resultados: 23 artículos cumplieron con los criterios de inclusión, la mayoría publicados en 2019, destacándose estudios en el contexto de la enseñanza, con predominio en el curso de enfermería y que fueron sintetizados en tres categorías temáticas. Consideraciones Finales: se encontró que a mayores niveles de liderazgo auténtico en el sistema educativo, mayores índices de otros factores positivos relacionados con el mismo, como confianza, involucramiento, optimismo académico, responsabilidad, creatividad, entre otros.

RESUMO Objetivos: identificar e analisar o conhecimento produzido na literatura acerca da liderança autêntica no sistema educacional, assim como na educação em enfermagem. Métodos: revisão integrativa, realizada nas bases de dados Scopus, Web of Science, CINAHL, MEDLINE/PubMed, ERIC, LILACS. Foram elegíveis artigos que abordassem sobre a liderança autêntica no sistema educacional de uma perspectiva geral e no âmbito da enfermagem, assim como as práticas de ensino desse modelo de liderança. Resultados: 23 artigos atenderam aos critérios de inclusão, a maioria publicada em 2019, sobressaindo-se estudos no contexto no ensino, com predomínio no curso de enfermagem e que foram sintetizados em três categorias temáticas. Considerações Finais: constatou-se que, quanto maiores os níveis da liderança autêntica no sistema educacional, mais elevados serão os índices de outros fatores positivos a ela relacionadas, como confiança, envolvimento, otimismo acadêmico, responsabilidade, criatividades, entre outros.

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Objetivo: avaliar a satisfação no trabalho dos técnicos de enfermagem atuantes no Serviço de Atendimento Móvel de Urgência e sua relação com variáveis relacionadas aos aspectos profissionais e demográficos. Método: estudo observacional analítico, com 155 técnicos de enfermagem do Serviço de Atendimento Móvel de Urgência. Empregaram-se o Job Satisfaction Survey e testes estatísticos não paramétricos para analisar a correlação e a associação entre as dimensões do instrumento com as variáveis sociodemográficas e profissionais, com nível de significância de p<0,05. Resultados: os profissionais estão nem insatisfeitos nem satisfeitos em relação ao seu trabalho. Identificaram-se correlações fracas entre alguns domínios do instrumento com as variáveis idade e tempo na unidade. Houve associações entre a satisfação no trabalho com as variáveis: sexo, graduação, escala e tipo de vínculo. Conclusão: evidenciou-se que a satisfação no trabalho dos técnicos de enfermagem atuantes no atendimento pré-hospitalar está associada às variáveis sexo, graduação, escala de serviço e tipo de vínculo.

Objective: to assess job satisfaction among nursing technicians working in a Mobile Emergency Care Service and its relationship with professional and demographic variables. Method: in this analytical observational study of 155 nursing technicians from the Mobile Emergency Care Service, the Job Satisfaction Survey and non-parametric statistical tests were used to examine correlations and associations between the dimensions of the instrument and sociodemographic and professional variables, to a p < 0.05 level of significance. Results: the technicians were neither dissatisfied nor satisfied with their work. Weak correlations were identified between some domains of the instrument, age and time in the unit. Job satisfaction was associated with sex, graduation, scale of service and type of employment relationship. Conclusion: job satisfaction among nursing technicians working in pre-hospital care was found to be associated with sex, graduation, scale of service and type of employment relationship.

Objetivo: evaluar la satisfacción no trabajo de los técnicos de enfermería que trabajan en el Servicio de Atención Móvil de Urgencias y su relación con variables relacionadas con los aspectos profesionales y demográficos. Método: estudio analítico observacional junto a 155 técnicos de enfermería del Servicio de Atención Móvil de Urgencias. Se utilizaron la Encuesta de Satisfacción Laboral y pruebas estadísticas no paramétricas para analizar la correlación y la asociación entre las dimensiones del instrumento y las variables sociodemográficas y profesionales, con el nivel de significancia de p <0.05. Resultados: los profesionales no están insatisfechos ni satisfechos con respecto a su trabajo. Se identificaron correlaciones débiles entre algunos dominios del instrumento con las variables edad y tiempo en la unidad. Hubo asociaciones entre la satisfacción laboral con las variables: sexo, graduación, escala y tipo de vínculo laboral. Conclusión:se evidenció que la satisfacción laboral de los técnicos de enfermería que laboran en la atención prehospitalaria se asocia con las variables sexo, grado, escala de servicio y tipo de vínculo.

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OBJECTIVE: To analyze the incidence and preventability of adverse events related to health care in adult patients admitted to a Brazilian teaching hospital. METHODS: A retrospective cohort study, in which the incidence and preventability of adverse events related to health care were based on a two-stage retrospective review of 368 medical records (nurses and pharmacist review of medical records, followed by physicians review of triggered medical records) of adult patients whose hospitalizations occurred during 2015 in a high-complexity public teaching hospital located in Brazil. Data were collected from February 2018 to February 2019. RESULTS: A total of 266 adverse events were observed in 124 patients. The incidence of adverse events related to health care was 33.7% (95% CI 0.29-0.39), and the incidence density was 4.97 adverse events per 100 patient-days. Adverse events were responsible for 701 additional days of hospitalization, and the estimated length of additional hospital stay attributable to them was, on average, 6.8 days per event. The most common types of events were related to general care (60; 22.6%), medications (50; 18.8%), nosocomial infection (35; 13.2%), any other type (11; 4.1%), and diagnoses (2; 0.8%). Regarding the severity of adverse events, it was found that 168 (63.2%) were mild, 55 (20.7%) were moderate, and 43 (16.2%) were severe. In addition, it was estimated that 155 (58.3%) events were preventable. The length of a patient's hospital stay was identified as a risk factor for the occurrence of adverse events (RR 1.20; 95% CI 1.04-1.39). CONCLUSIONS: Through knowledge of the incidence, nature, severity, preventability, and risk factors for the occurrence of adverse events, it is possible to create the opportunities to prioritize the implementation of strategies for mitigating specific events based on reliable data and concrete information.

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OBJECTIVE: To explore the meaning of suicidal behavior from the perspective of family health professionals. METHOD: A qualitative study developed during 2017-2018 with 18 primary care professionals from a Brazilian municipality. Grounded theory was used as the methodological framework. Semi-oriented interviews were conducted, transcribed, and analyzed by open, axial, and selective coding. FINDINGS: The professionals perceived themselves as unprepared, emotionally affected, and fearful to work in suicide prevention, prioritizing the referral of people to specialized services regardless of the severity of the situation. Suicide was represented as both a choice and a condition of vulnerability, being more reprehensible when associated with individual choice. CONCLUSION: We identified beliefs related to suicidal behavior that could affect the care of people at risk. Our findings reinforce the need for education and training in the prevention of suicidal behavior in primary care.

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Herein we demonstrate that adding single atoms of selected transition metals to graphitic carbon nitrides allows the tailoring of the electronic and chemical properties of these 2D nanomaterials, directly impacting their usage in photocatalysis. These single-atom photocatalysts were successfully prepared with Ni2+, Pt2+ or Ru3+ by cation exchange, using poly(heptazine imides) (PHI) as the 2D layered platform. Differences in photocatalytic performance for these metals were assessed using rhodamine-B (RhB) and methyl orange (MO) as model compounds for degradation. We have demonstrated that single atoms may either improve or impair the degradation of RhB and MO, depending on the proper matching of the net charge of these molecules and the surface potential of the catalyst, which in turn is responsive to the metal incorporated into the PHI nanostructures. Computer simulations demonstrated that even one transition metal cation caused dramatic changes in the electronic structure of PHI, especially regarding light absorption, which was extended all along the visible up to the near IR region. Besides introducing new quantum states, the metal atoms strongly polarized the molecular orbitals across the PHI and electrostatic fields arising from the electronic transitions became at least tenfold stronger. This simple proof of concept demonstrates that these new materials hold promise as tools for many important photocatalytic reactions that are strongly dependent on our ability to control surface charge and its polarization under illumination, such as H2 evolution, CO2 reduction and photooxidation in general.

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The expression production potential represents the maximum amount of products that can be obtained per unit area. However, what is the maximum amount of product that can be obtained in a pasture area? To answer this question, it is necessary to understand the factors related to forage accumulation, grazing efficiency, chemical composition of the forage plant, forage intake and nutritional requirements of animals, management, genetics, and management of the production system. The average annual productivity of beef cattle in Brazil is approximately 120 kg of body weight (approximately 60 kg of carcass) per hectare. This index is below the parameters reported in the literature. Adequate management of pastures with tropical forages usually provides a stocking rate above one animal unit (450 kg) per hectare. The increase in the stocking rate, combined with high individual body weight gain, provides high productivity, which may exceed 1260 kg of body weight (approximately 630 of carcass) per hectare per year. The production of beef cattle in tropical pastures has a high response potential with regard to the adoption of technologies to increase productivity indices.

O termo potencial de produção representa a quantidade máxima de produto que seria possível se obter em uma determinada área. Mas qual é o potencial de produção da bovinocultura de corte em pastagens tropicais? Para responder esta pergunta, é necessário compreender os fatores relacionados ao acúmulo de forragem, eficiência de pastejo, composição química da planta forrageira, consumo de forragem e requerimento nutricional dos animais para um dado desempenho, manejo, genética e gestão do sistema de produção. A produtividade média anual da pecuária de corte no Brasil está em torno de 120 kg de peso corporal (aproximadamente 60 kg de carcaça) por hectare. Este índice está bem abaixo de resultados reportados na literatura. O manejo adequado de pastagens com forrageiras tropicais normalmente proporciona taxa de lotação acima de uma unidade animal (UA, 450 kg) por hectare. O aumento na taxa de lotação, combinado com elevado ganho de peso proporcionam alta produtividade, podendo ultrapassar 1260 kg de peso corporal (aproximadamente 630 kg de carcaça) anuais por hectare. A produção de bovinos de corte em pastagens tropicais possui alto potencial de resposta quanto a adoção de tecnologias para incremento nos índices de produtividade.

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O termo potencial de produção representa a quantidade máxima de produto que seria possível se obter em uma determinada área. Mas qual é o potencial de produção da bovinocultura de corte em pastagens tropicais? Para responder esta pergunta, é necessário compreender os fatores relacionados ao acúmulo de forragem, eficiência de pastejo, composição química da planta forrageira, consumo de forragem e requerimento nutricional dos animais para um dado desempenho, manejo, genética e gestão do sistema de produção. A produtividade média anual da pecuária de corte no Brasil está em torno de 120 kg de peso corporal (aproximadamente 60 kg de carcaça) por hectare. Este índice está bem abaixo de resultados reportados na literatura. O manejo adequado de pastagens com forrageiras tropicais normalmente proporciona taxa de lotação acima de uma unidade animal (UA, 450 kg) por hectare. O aumento na taxa de lotação, combinado com elevado ganho de peso proporcionam alta produtividade, podendo ultrapassar 1260 kg de peso corporal (aproximadamente 630 kg de carcaça) anuais por hectare. A produção de bovinos de corte em pastagens tropicais possui alto potencial de resposta quanto a adoção de tecnologias para incremento nos índices de produtividade.

The expression production potential represents the maximum amount of products that can be obtained per unit area. However, what is the maximum amount of product that can be obtained in a pasture area? To answer this question, it is necessary to understand the factors related to forage accumulation, grazing efficiency, chemical composition of the forage plant, forage intake and nutritional requirements of animals, management, genetics, and management of the production system. The average annual productivity of beef cattle in Brazil is approximately 120 kg of body weight (approximately 60 kg of carcass) per hectare. This index is below the parameters reported in the literature. Adequate management of pastures with tropical forages usually provides a stocking rate above one animal unit (450 kg) per hectare. The increase in the stocking rate, combined with high individual body weight gain, provides high productivity, which may exceed 1260 kg of body weight (approximately 630 of carcass) per hectare per year. The production of beef cattle in tropical pastures has a high response potential with regard to the adoption of technologies to increase productivity indices.

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OBJECTIVE: To analyze the Coaching Leadership exercised by nursing coordinators in the Mobile Emergency Care Service units, in the coordinators and nursing technicians' perception, in addition to its correlation with three sociodemographic variables. METHOD: Descriptive and analytical study carried out on nursing coordinators and nursing technicians from the pre-hospital care units, using the Coaching Leadership questionnaires and the Spearman correlation test to analyze the results. RESULTS: 11 nursing coordinators and 155 nursing technicians participated in the study. The Coaching Leadership exercise was observed in the perception of two professional categories: "giving and receiving feedback", which was the domain with the highest average for the coordinators (21.45; SD=2.84); and "communication" (20.43; SD=5.57) for technicians. Furthermore, in the coordinators' self-perception of the Coaching Leadership, there was an indirect correlation between the domains "giving and receiving feedback" (Spearman -0.720; p-value 0.012) and "total scale score" (Spearman -0.652 and p-value 0.029) with regard to "training time". CONCLUSION: The research results indicate significant contributions to nursing practices and denote this competence impact on the pre-hospital care nursing staff, in the work environment, and in the care provided to the patient.

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OBJECTIVE: To highlight the scientific production related to the use of the retrospective chart review methods to assess the incidence and preventability of adverse events in hospitals. METHOD: An integrative review in the MEDLINE, LILACS, SCOPUS, Web of Science and EMBASE databases conducted in May 2019 with the following guiding question: What is known about the retrospective chart review methods to assess the incidence and preventability of adverse events in hospitals? Subsequently, the categorization, synthesis, and classification of the evidence levels of the included publications were performed. RESULTS: In the 13 selected studies, the instruments adopted to assess the occurrence of adverse events were the Harvard Medical Practice Study, the Canadian Adverse Event Study, the Quality in Australian Health Care Study, and the Global Trigger Tool. Incidence ranged from 5.7 to 14.2%, while preventability ranged from 31 to 83%. CONCLUSION: Differences in incidence and preventability were found, showing different results in the quality of care provided, the information registered in medical records, the screening criteria used, and the assessments of the reviewers.

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OBJETIVO: Identificar e analisar os aspectos relacionados às práticas da liderança exemplar na perspectiva de enfermeiros do Serviço de Atendimento Móvel de Urgência (SAMU), distinguindo a autopercepção desses profissionais enquanto líderes e caracterizando a percepção da liderança exercida por enfermeiros integrantes de suas equipes. MÉTODO: Estudo descritivo, realizado com enfermeiros do SAMU Regional dos 26 municípios de um Departamento Regional de Saúde do interior de São Paulo. A coleta de dados ocorreu mediante aplicação das versões EU e OBSERVADOR do Leadership Practices Inventory (LPI). RESULTADOS: Considerando as versões do LPI, as avaliações dos participantes atinentes ao comportamento do líder apresentaram diferenças mínimas em comparação com suas autoavaliações. Contudo, os respondentes se autoavaliaram positivamente na maior parte das práticas que delineiam a liderança exemplar. CONCLUSÃO: As práticas da liderança exemplar mostraram-se presentes no comportamento dos enfermeiros que atuavam no SAMU, despontando como competências imprescindíveis aos enfermeiros do atendimento pré-hospitalar.

OBJETIVO: Identificar y analizar los aspectos relacionados a las prácticas de liderazgo ejemplar en la perspectiva de enfermeros del Servicio de Asistencia Móvil de Urgencia (SAMU), distinguiendo su autopercepción como líderes y caracterizando la percepción del liderazgo ejercida por enfermeros integrantes de sus equipos. MÉTODO: Estudio descriptivo, realizado con enfermeros del SAMU Regional de los 26 municipios de un Departamento Regional de Salud del interior de São Paulo. Los datos se recolectaron mediante la aplicación de las versiones YO y OBSERVADOR del Leadership Practices Inventory (LPI). RESULTADOS: Considerando las versiones del LPI, las valoraciones de los participantes atinentes al comportamiento del líder presentaron diferencias mínimas en comparación a sus autovaloraciones. Sin embargo, los respondientes se autoevaluaron positivamente en la mayoría de las prácticas que delinean el liderazgo ejemplar. CONCLUSIÓN: Las prácticas del liderazgo ejemplar se mostraron presentes en el comportamiento de los enfermeros que actuaban en el SAMU, destacándose como competencias imprescindibles en los enfermeros de la atención prehospitalaria.

OBJECTIVE: Identify and analyze the aspects related to the practices of exemplary leadership from the perspective of nurses of the Mobile Emergency Services (SAMU), distinguishing the self-perception of these professionals as leaders and characterizing the perception of leadership exercised by nurses in their teams. METHOD: This is a descriptive study, carried out with nurses from SAMU Regional of the 26 municipalities of a Regional Health Department of the interior of São Paulo. The data collection occurred through the application of the SELF and OBSERVER versions of Leadership Practices Inventory (LPI). RESULTS: Considering the LPI versions, the participants' evaluations regarding the leader's behavior presented minimal differences compared to their self-evaluations. However, respondents rated themselves positively in most of the practices that delineate exemplary leadership. CONCLUSION: The practices of exemplary leadership were present in the behavior of the nurses who worked at SAMU, emerging as essential skills for nurses in pre-hospital care.

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