Nurses' perception of the nursing process and its relationship with leadership.

OBJECTIVES: to describe Nurses' perception of the Nursing Process and its relationship with leadership. METHODS: action research conducted between September/2021 and April/2022 with nurses from a medium-sized hospital in southern Brazil. The data investigated, one of the stages of the method, was collected using the Focus Group technique and submitted to Strategic Focus Analysis. RESULTS: three categories emerged from the organized and analyzed data, namely: Nursing Process: a tool that qualifies nursing care; Conditions that weaken the Nursing Process; and Strategies that enhance the Systematization of Nursing Care. FINAL CONSIDERATIONS: the perception of the Nursing Process and its relationship with leadership are not always understood as complementary themes. Although they recognize that the Nursing Process is sometimes imposed as normative, nurses do not perceive the importance of the role of the leader, who is considered a key player in conducting and boosting the Systematization of Nursing Care.

Nurses' perception of the nursing process and its relationship with leadership / Percepción de los enfermeros sobre el proceso de enfermería y su relación con el liderazgo / Percepção dos enfermeiros sobre o processo de enfermagem e sua relação com a liderança

ABSTRACT Objectives: to describe Nurses' perception of the Nursing Process and its relationship with leadership. Methods: action research conducted between September/2021 and April/2022 with nurses from a medium-sized hospital in southern Brazil. The data investigated, one of the stages of the method, was collected using the Focus Group technique and submitted to Strategic Focus Analysis. Results: three categories emerged from the organized and analyzed data, namely: Nursing Process: a tool that qualifies nursing care; Conditions that weaken the Nursing Process; and Strategies that enhance the Systematization of Nursing Care. Final Considerations: the perception of the Nursing Process and its relationship with leadership are not always understood as complementary themes. Although they recognize that the Nursing Process is sometimes imposed as normative, nurses do not perceive the importance of the role of the leader, who is considered a key player in conducting and boosting the Systematization of Nursing Care.

RESUMEN Objetivos: describir la percepción de los Enfermeros sobre el Proceso de Enfermería y su relación con el liderazgo. Métodos: se trata de una investigación-acción realizada entre septiembre de 2021 y abril de 2022 entre enfermeros de un hospital de medio porte del sur de Brasil. Los datos investigados, una de las etapas del método, fueron recolectados mediante la técnica de Grupo Focal y sometidos al Análisis Focal Estratégico. Resultados: los datos organizados y analizados resultaron en tres categorías, a saber: Proceso de Enfermería como herramienta que cualifica los cuidados de enfermería; Condiciones que debilitan el Proceso de Enfermería; y Estrategias que potencian la Sistematización de los Cuidados de Enfermería. Consideraciones Finales: la percepción del Proceso de Enfermería y su relación con el liderazgo no siempre se toma en cuenta como tema complementario. Aunque los Enfermeros reconocen que el Proceso de Enfermería se impone a veces como normativo, no perciben la importancia del papel del líder, considerado como un actor clave para conducir y dinamizar la Sistematización de los Cuidados de Enfermería.

RESUMO Objetivos: descrever a percepção dos Enfermeiros sobre o Processo de Enfermagem e a sua relação com a liderança. Métodos: pesquisa-ação conduzida entre setembro/2021 e abril/2022 com enfermeiros de um hospital de médio porte do sul do Brasil. Os dados investigados, uma das etapas do método, foram coletados por meio da técnica de Grupo Focal e submetidos à Análise Focal Estratégica. Resultados: dos dados organizados e analisados resultaram três categorias, quais sejam: Processo de Enfermagem: ferramenta qualificadora da assistência de enfermagem; Condições que fragilizam o Processo de Enfermagem; e Estratégias que potencializam a Sistematização da Assistência de Enfermagem. Considerações Finais: a percepção de Processo de Enfermagem e a sua relação com a liderança nem sempre são apreendidos como temas complementares. Embora reconheçam que o Processo de Enfermagem é, por vezes, imposto como normativo, os Enfermeiros não percebem a relevância da função do líder, considerado ator-chave na condução e dinamização da Sistematização da Assistência de Enfermagem.

Qualidade de vida no trabalho na estratégia saúde da família durante a pandemia da Covid-19 / Quality of work life in the family health strategy during the Covid-19 pandemic / Calidad de vida en el trabajo en la estrategia de salud familiar durante la pandemia del Covid-19

Objetivos: analisar a qualidade de vida no trabalho (QVT) na Estratégia Saúde da Família durante o período pandêmico e identificar na visão dos trabalhadores sugestões para promoção da qualidade de vida no ambiente laboral. Métodos: estudo transversal e quantitativo, realizado entre outubro de 2020 a junho de 2021 nas Unidades Básicas de Saúde de Palmas, capital do Tocantins, Brasil. Investigou-se o perfil sociodemográfico, a QVT por meio do Quality of Working Life Questionnaire (QOLWQbref) e sugestões para sua melhoria. Resultados: a QVT foi satisfatória para 91,96% dos 112 participantes, com níveis médios a altos em todos os domínios. Aqueles que não consideravam o trabalho estressante alcançaram melhor QVT. Entre as 113 sugestões para promoção da QVT, destacaram-se aspectos relacionados à Condições de Trabalho (29,19%) e Relacionamento na Equipe (19,46%). Conclusão: apesar da pandemia, a maioria dos participantes avaliaram QVT como satisfatória. As sugestões dos trabalhadores podem colaborar para manutenção e melhoria da QVT, protegendo a saúde do trabalhador(AU)

Objective: to analyze the quality of life at work QoWL in the Family Health Strategy during the pandemic period and to identify suggestions for promoting quality of life in the work environment from the workers' point of view. Methods: quantitative study, carried out between October/2020 and June/2021 in the Primary Care Units of a Palmas, capital in Tocantins, Brazil. The sociodemographic profile, QoWL through the Quality of Working Life Questionnaire (QoWLQ-bref) and suggestions for its improvement were investigated. Results: the QoWL was satisfactory for 91.96% of the 112 participants, with medium to high levels in all domains. Those who did not consider work stressful achieved better QoWL. Of the 113 suggestions for promoting QoWL, aspects related to Working Conditions (29.19%) and Team Relationships (19.46%) stood out. Conclusion: despite the pandemic, most participants rated QoWL as satisfactory. Workers' suggestions can collaborate to maintain and improve QoWL, protecting workers' health(AU)

Objetivo: analizar la calidad de vida en el trabajo (CVT) en la Estrategia de Salud de la Familia durante el período pandémico e identificar sugerencias para la promoción de la calidad de vida en el ambiente laboral desde la perspectiva de los trabajadores. Métodos: estudio cuantitativo, realizado entre octubre/2020 y junio/2021 en las Unidades Básicas de Salud de Palmas, capital del Tocantins, Brasil. Se investigó el perfil sociodemográfico, la CVL a través del Cuestionario de Calidad de Vida Laboral - Quality of Working Life Questionnaire (QoWLQ-bref) y sugerencias para su mejora. Resultados: la CVL fue satisfactoria para el 91,96% de los 112 participantes, cuyos niveles fueron de medios a altos en todos los dominios. Aquellos que no consideraban el trabajo estresante lograron mejor CVT. De las 113 sugerencias para promover la CVT, se destacaron aspectos relacionados con las Condiciones de Trabajo (29,19%) y las Relaciones de Equipo (19,46%). Conclusión: a pesar de la pandemia, la mayoría de los participantes calificaron la CVT como satisfactoria. Las sugerencias de los trabajadores pueden colaborar para mantener y mejorar la CVT, protegiendo la salud de los trabajadores(AU)

The performance of artificial neural networks for modeling daily concentrations of particulate matter from meteorological data.

The use of techniques based on artificial intelligence and machine learning for the simulation of many processes is becoming increasingly important in environmental sciences, with applications in the study of time series of atmospheric properties, such as pollution levels. The present work aimed to evaluate the efficiency of a model based on Artificial Neural Networks (ANN) in the simulation PM10 from meteorological data observed between 2018 and 2019 in Guaíba, southern Brazil, thus also having an estimate of the influence of atmospheric conditions on local air pollution. For this purpose, meteorological and PM10 data obtained from the stations Parque 35, sustained by Celulose Riograndense (CMPC), and A-801, sustained by the National Institute of Meteorology (INMET), were used. The ANN used for the simulation was of the Multilayer Perceptron type, trained by the backpropagation algorithm with cross-validation. The results obtained indicate that the simulation was satisfactory with a Nash-Sutcliffe index (NSE) of 0.64, a linear correlation coefficient (R) of 0.81, a relative error (Er) of 26% and a root mean square error (RMSE) of 7.40 µg/m3. Thus, even with some difficulty in estimating extreme concentrations, the model was suitable for the largest range observed, of 10 µg/m3 to 50 µg/m3. For this dataset, the model proved to be an useful assessment tool and has the potential to be applied operationally to contribute to the monitoring and control of air quality levels both in the study area and in other regions of Brazil and the world.

Quality of life at work and Burnout in family health strategy workers.

OBJECTIVE: To analyze the correlation between quality of life at work and Burnout in workers in the Family Health Strategy. METHODS: Correlational, cross-sectional study carried out with 112 workers, in the pandemic period (October/2020 to June/2021), in Palmas/Tocantins. The Quality of Work Life Assessment Questionnaire (QWLQ-bref) and the Maslach Burnout Inventory - Human Services Survey (MBI-HSS) were used. RESULTS: A strong negative correlation was identified between Emotional Exhaustion and the Physical/Health, Professional and Total Quality of Life Score at work; and moderate negative correlation between Depersonalization and all domains of Quality of Work Life. Professional Achievement showed a moderate positive correlation with the Psychological and Personal domains and with the Total Quality of Work Life Score. CONCLUSION: The best Quality of Work Life indices were correlated with lower Emotional Exhaustion and Depersonalization scores and higher scores of Professional Achievement.

Oogenesis and in vitro reproduction of the twospot astyanax Astyanax bimaculatus (Linnaeus, 1758) exposed to conspecific alarm substance.

Stress situations can be essential to trigger reproduction in fish; however, it may also inhibit it. One of those situations involves the release of the conspecific alarm substance (CAS), a natural stressor, into the water by specific fish epidermal cells after a predator attack. Little is known about the effects of that substance on fish reproduction. This study aimed to evaluate the effects of CAS exposure on the oogenesis and reproduction of the twospot astyanax Astyanax bimaculatus before the hormonal induction for artificial reproduction. No macroscopic or cellular changes in the ovaries were observed for the females exposed to CAS, and the oocyte stages show all females in the same phase of maturation (Spawning Capable). Females exposed to CAS spawned 20 min before the females without exposure. On the other hand, they ovulated only once, whereas the females from the control group ovulated multiple times for approximately two hours after hormonal induction. Moreover, the precocious ovulation of the females submitted to CAS did not generate offspring, since all generated zygotes did not develop. In contrast, the control group females produced more than 11 thousand healthy larvae. Exposing the female fish to CAS during their reproductive management in captivity may reduce breeding success.

Lamellar orientation at the surface of isotactic polystyrene thin films analyzed by sum frequency generation spectroscopy.

Analyzing the orientation of polymeric crystalline lamella at the surface of thin films can be challenging. Even though atomic force microscopy (AFM) is often sufficient for this analysis, there are cases when imaging is not sufficient to confidently determine lamellar orientation. Here, we used sum frequency generation (SFG) spectroscopy to analyze the lamellar orientation at the surface of semi-crystalline isotactic polystyrene (iPS) thin films. The SFG orientation analysis indicated that the iPS chains are oriented perpendicular to the substrate (flat-on lamellar orientation), which was confirmed by AFM. By analyzing the evolution of the SFG spectral features with the progress of crystallization, we demonstrated that the ratios of the SFG intensities of the phenyl ring resonances are a good indication of the surface crystallinity. Furthermore, we explored the challenges associated with SFG measurements of heterogeneous surfaces, which is commonly present in many semi-crystalline polymeric films. To the best of our knowledge, this is the first time that the surface lamellar orientation of semi-crystalline polymeric thin films was determined by SFG. Also, this work pioneers in reporting the surface conformation of semi-crystalline and amorphous iPS thin films by SFG and in linking the SFG intensity ratios to the progress of the crystallization and the surface crystallinity. This study demonstrates the potential applicability of SFG spectroscopy in the conformational analysis of polymeric crystalline structures at interfaces and opens the way to the investigation of more complex polymeric structures and crystalline arrangements, especially for the case of buried interfaces, where AFM imaging is not an option.

Quality of life at work and Burnout in family health strategy workers / Calidad de vida em el trabajo y agotamiento em trabajadores de la estrategia de salud de la família / Qualidade de vida no trabalho e Burnout em trabalhadores da estratégia saúde da família

ABSTRACT Objective: To analyze the correlation between quality of life at work and Burnout in workers in the Family Health Strategy. Methods: Correlational, cross-sectional study carried out with 112 workers, in the pandemic period (October/2020 to June/2021), in Palmas/Tocantins. The Quality of Work Life Assessment Questionnaire (QWLQ-bref) and the Maslach Burnout Inventory - Human Services Survey (MBI-HSS) were used. Results: A strong negative correlation was identified between Emotional Exhaustion and the Physical/Health, Professional and Total Quality of Life Score at work; and moderate negative correlation between Depersonalization and all domains of Quality of Work Life. Professional Achievement showed a moderate positive correlation with the Psychological and Personal domains and with the Total Quality of Work Life Score. Conclusion: The best Quality of Work Life indices were correlated with lower Emotional Exhaustion and Depersonalization scores and higher scores of Professional Achievement.

RESUMEN Objetivo: Analizar la correlación entre calidad de vida en el trabajo y Burnout en trabajadores de la Estrategia Salud de la Familia. Métodos: Estudio correlacional, transversal, realizado con 112 trabajadores, en el período de pandemia (octubre/2020 a junio/2021), en Palmas/Tocantins. Se utilizaron el Quality of Work Life Assessment Questionnaire (QWLQ-bref) y el Maslach Burnout Inventory - Human Services Survey (MBI-HSS). Resultados: Se identificó una fuerte correlación negativa entre el Agotamiento Emocional y el Score de Calidad de Vida Física/Salud, Profesional y Total en el trabajo; y correlación negativa moderada entre Despersonalización y todos los dominios de Calidad de Vida Laboral. El Logro Profesional mostró una correlación positiva moderada con los dominios Psicológico y Personal y con el Puntaje de Calidad de Vida Laboral Total. Conclusión: Los mejores índices de Calidad de Vida Laboral se correlacionaron con puntajes más bajos de Agotamiento Emocional y Despersonalización y puntajes más altos de Logro Profesional.

RESUMO Objetivo: Analisar a correlação entre qualidade de vida no trabalho e as dimensões do Burnout em trabalhadores da Estratégia Saúde da Família. Métodos: Estudo correlacional, transversal, executado com 112 trabalhadores, no período pandêmico (outubro/2020 a junho/2021), em Palmas/Tocantins. Utilizou-se o Questionário de avaliação da qualidade de vida no trabalho (QWLQ-bref) e o Maslach Burnout Inventory - Human Services Survey (MBI-HSS). Resultados: Identificou-se correlação negativa forte entre Exaustão Emocional e os domínios Físico/Saúde, Profissional e Escore Total da Qualidade de Vida no Trabalho; e correlação negativa moderada entre Despersonalização e todos os domínios da Qualidade de Vida no Trabalho. A Realização Profissional apresentou correlação positiva moderada com os domínios Psicológico, Pessoal e com o Escore Total da Qualidade de Vida no Trabalho. Conclusão: Os melhores índices de Qualidade de Vida no Trabalho estiveram correlacionados a menores escores de Exaustão Emocional e Despersonalização e a maiores escores de Realização Profissional.

Hiv/aids e sua principal coinfecção-tuberculose: panorama de uma década de um estado do nordeste brasileiro e suas semelhanças à sociodemografia subsaariana / Hiv/aids and its main coinfection-tuberculosis: a decade panorama of a northeastern brazilian state and its similarities to subsaharan sociodemographics / Vih/sida y su principal coinfección-tuberculosis: panorama decenal de un estado del nordeste brasileño y sus similitudes con la sociodemografía subsahariana

Introdução: Entre o início da epidemia do HIV na década de 1980 até 2018, houve cerca de 32 milhões de óbitos e no mundo existem aproximadamente 37,9 milhões de pessoas viviam com HIV e AIDS. Assim, mesmo com advento da TARV, as pessoas vivendo com HIV/AIDS permanecem sujeitas a redução na qualidade de vida, sendo que dentre esses fatores a coinfecção por Tuberculose se demonstra a principal responsável pela alteração de prognóstico. Desta forma o presente estudo busca estabelecer um panorama epidemiológico das pessoas vivendo com HIV/ AIDS e a sua principal coinfecção no Estado do Maranhão. Metodologia: Trata-se de um estudo epidemiológico descritivo retrospectivo, de abordagem quantitativa que apresenta o perfil das pessoas que vivem com HIV/AIDS, bem como, a principal coinfecção, no período de 2009 a 2018 no Maranhão. Resultados: No período de 2009 a 2018 foram notificados 7691 casos de AIDS no Maranhão, sendo a maioria composta por indivíduos de 20 a 49 anos, do sexo masculino, cor parda e com escolaridade entre a 1ª serie e o ensino fundamental completo, via de transmissão heterossexual e com maior tendência a coinfecção por Tuberculose nos últimos anos da amostra e nos casos de uso de TARV. Conclusão: O Panorama obtido propõe uma maior necessidade de intervenção e conscientização da necessidade de códons, além de maior rastreio de indivíduos no uso da TARV. Embora observada forte redução nas notificações em 2018, há a necessidade de cautela, principalmente pelo retrato da epidemia em regiões com similaridade sócio demográfica.

Introduction: Between the beginning of the HIV epidemic in the 1980s until 2018, there were about 32 million deaths and in the world there are approximately 37.9 million people living with HIV and AIDS. Thus, even with the advent of ART, people living with HIV/AIDS remain subject to reduced quality of life, and among these factors, co-infection with tuberculosis proves to be the main responsible for the change in prognosis. Thus, the present study seeks to establish an epidemiological panorama of people living with HIV/AIDS and their main co-infection in the state of Maranhão. Methodology: This is a retrospective descriptive epidemiological study, of quantitative approach that presents the profile of people living with HIV/AIDS, as well as, the main coinfection, in the period from 2009 to 2018 in Maranhão. Results: In the period from 2009 to 2018, 7691 cases of AIDS were notified in Maranhão, being the majority composed of individuals aged 20 to 49 years, male, brown color and with education between 1st grade and complete elementary school, heterosexual transmission route and with a greater tendency to coinfection by Tuberculosis in the last years of the sample and in cases of ART use. Conclusion: The Panorama obtained proposes a greater need for intervention and awareness of the need for codons, in addition to greater screening of individuals on ART use. Although observed a strong reduction in notifications in 2018, there is a need for caution, mainly because of the epidemic's portrayal in regions with socio demographic similarity.

Introducción: Entre el inicio de la epidemia del VIH en la década de 1980 hasta 2018, hubo cerca de 32 millones de muertes y en el mundo hay aproximadamente 37,9 millones de personas que viven con el VIH y el SIDA. Así, incluso con el advenimiento de la terapia antirretroviral, las personas que viven con VIH/SIDA siguen estando sujetas a la reducción de la calidad de vida, y entre estos factores, la coinfección con tuberculosis resulta ser el principal responsable del cambio en el pronóstico. Así, el presente estudio busca establecer un panorama epidemiológico de las personas que viven con VIH/SIDA y sus principales coinfecciones en el estado de Maranhão. Metodología: Se trata de un estudio epidemiológico descriptivo retrospectivo, de abordaje cuantitativo que presenta el perfil de las personas que viven con VIH/SIDA, así como, la principal coinfección, en el período de 2009 a 2018 en Maranhão. Resultados: En el período de 2009 a 2018, fueron notificados 7691 casos de SIDA en Maranhão, siendo la mayoría compuesta por individuos de 20 a 49 años, de sexo masculino, color castaño y con escolaridad entre 1º grado y primaria completa, vía de transmisión heterosexual y con mayor tendencia a la coinfección por Tuberculosis en los últimos años de la muestra y en los casos de uso de TAR. Conclusiones: El Panorama obtenido propone una mayor necesidad de intervención y concienciación de la necesidad de codones, además de un mayor cribado de los individuos en uso de TAR. A pesar de observarse una fuerte reducción de notificaciones en 2018, es necesario ser cautelosos, principalmente por el retrato de la epidemia en regiones con similitud socio demográfica.

Sofrimento mental, desgastes e fortalecimento no enfrentamento da covid-19 entre trabalhadores da enfermagem do Tocantins / Mental suffering, wear, and strengthening in the face of COVID-19 among nursing workers in Tocantins / Sufrimiento mental, desgaste y fortalecimiento ante el covid-19 en trabajadores de enfermería de Tocantins

Considerando o impacto da pandemia, o aumento da demanda dos serviços de saúde e o potencial desgaste psíquico dos profissionais da linha de frente, o objetivo do estudo foi identificar a presença de sofrimento mental e os fatores de desgaste e de fortalecimento em trabalhadores da enfermagem que atuaram no enfrentamento da covid-19 no Tocantins. Trata-se de pesquisa quantitativa por meio da técnica snowball, com coleta de dados entre abril e outubro de 2020. Os dados foram analisados com estatística descritiva simples e inferencial. Para identificar a presença de sofrimento mental, foi utilizado SRQ-20; para levantamento dos fatores de desgaste e fortalecimento, foi feita entrevista semiestruturada. Dos 38 participantes, 84,2% são do sexo feminino e 68,4% apresentam suspeição de sofrimento mental. Não se encontrou associação da presença de sofrimento mental com o perfil dos participantes. Quanto aos grupos de sintomas do SRQ-20, foram identificados: humor depressivo e ansioso (84,2% se sentem nervosos); sintomas somáticos (68,4% dormem mal); decréscimos de energia vital (60,5% se sentem cansados o tempo todo); e pensamentos depressivos (37,8% têm perdido o interesse pelas coisas). Os aspectos relacionados ao trabalho em equipe (66,7%) são os que mais fortaleceram os trabalhadores no enfrentamento da covid-19 e os relacionados à política de saúde do trabalhador (61,9%), os que mais desgastaram. Conclui-se que os trabalhadores da enfermagem apresentaram alta prevalência de sofrimento mental; os fatores de desgaste foram relacionados à sobrecarga de trabalho e à falta de políticas adequadas ao trabalhador. O trabalho em equipe foi o que mais fortaleceu os profissionais.

Considering the impact of the pandemic, increased demand for health services and the potential psychological strain on front-line workers, the objective of the study was to identify the presence of mental suffering and the strain and strengthening factors in nursing workers who work facing COVID-19 in Tocantins. This is a quantitative research using the snowball technique, with data collection between April and October 2020. Data were analyzed using simple descriptive and inferential statistics. The SRQ-20 and a semi-structured interview were used to survey the wear and strengthening factors to identify the presence of mental suffering. Of the 38 participants, 84.2% are female and 68.4% have a suspicion of mental suffering. No association was found between the presence of mental suffering and the profile of the participants. Regarding the SRQ-20 symptom groups, we found: depressive and anxious mood (84.2% feel nervous); somatic symptoms (68.4% sleep poorly); decreases in vital energy (60.5% feel tired all the time); and depressive thoughts (37.8% have lost interest in things). Aspects related to teamwork (66.7%) are the ones that most strengthened workers facing COVID-19 and those related to the worker's health policy (61.9%) were the ones that wore out the most. In conclusion, nursing workers have a high prevalence of mental suffering; the stress factors are related to work overload and the lack of adequate policies for the worker. Teamwork was what strengthened the workers the most.

Teniendo en cuenta el impacto de la pandemia, el aumento de la demanda por los servicios de salud y el potencial desgaste psicológico en los trabajadores de primera línea, el objetivo de este estudio fue identificar el sufrimiento mental y los factores de desgaste y de fortalecimiento en los trabajadores de enfermería que trabajan en el enfrentamiento del covid-19 en Tocantins (Brasil). Se trata de una investigación cuantitativa mediante la técnica snowball, con recolección de datos entre abril y octubre de 2020. Los datos se analizaron con el uso de estadística descriptiva e inferencial simple. Para identificar la presencia de sufrimiento psíquico se utilizó el SRQ-20, y la entrevista semiestructurada para identificar los factores de desgaste y fortalecimiento. De los 38 participantes, el 84,2% son del sexo femenino y el 68,4% tienen sospecha de sufrimiento psíquico. No se encontró asociación entre la presencia de malestar mental y el perfil de los participantes. En cuanto a los grupos de síntomas del SRQ-20, se encontró: estado de ánimo depresivo y ansioso (el 84,2% de los participantes se sienten nerviosos); síntomas somáticos (el 68,4% duermen mal); disminución de la energía vital (el 60,5% se sienten cansados todo el tiempo); y pensamientos depresivos (el 37,8% han perdido el interés por las cosas). Los aspectos relacionados con el trabajo en equipo (66,7%) son los que más fortalecieron a los trabajadores frente al covid-19, y los relacionados con la Política de Salud del Trabajador (61,9%) fueron los que más les desgastaron. Se concluye que los trabajadores de enfermería tienen alta prevalencia de sufrimiento psíquico; los factores de desgaste están relacionados con la sobrecarga de trabajo y con la falta de políticas adecuadas para el trabajador. El trabajo en equipo fue el que más fortaleció a los trabajadores.

A high-throughput, cheap, and green method for determination of ethanol in cachaça and vodka using 96-well-plate images.

A high-throughput method for the determination of ethanol in vodka and cachaça using 96-well-plate digital images was proposed and validated. The standard method consists of beverage distillation, measuring its density using a pycnometer, and converting it into ethanol content. It is simple, but it is time-consuming and susceptive to error. The proposed method exploits the suppression of phenolphthalein ionization by ethanol in an alkaline solution and the fading of the pink solution was converted into ethanol content. It consists in mixing 1 mL of sample with 0.1 mL of an alkaline phenolphthalein solution. 96-well-plate images were acquired using a desktop scanner. Red, green, and blue (RGB) values from the 96 wells were automatically extracted using ReadPlate (ImageJ plugin). Then, RGB values were exported to a spreadsheet that converted these values into analytical signals and calculated the ethanol content in beverages. The ethanol content of cachaças and vodkas was 33-45% (v/v) and it was also the linear range of the proposed method. The method's precision was evaluated using relative standard deviation (RSD). Five cachaças and three vodkas were analyzed. Each beverage was analyzed six times on the same day (intra-day repeatability) and three consecutive days (inter-day repeatability) by three different analysts (inter-analyst repeatability). The intra-day repeatability average was 1.7% (1.2-2.2% range), the intra-day repeatability average was 2.6% (1.9-3.5% range), and the inter-analyst repeatability average was 4% (2.6-6.2% range). Accuracy was evaluated by comparing the proposed method with the standard method using a percent error and a paired t-test. The average percent error was 1.9%, in the paired t-test, the p-value average value was 0.25. The proposed method can analyze 12 samples in 30 min, whereas the standard method spends around 1 h on each sample. Thus, the proposed method provides high-throughput compared with the standard method.

Influence of Polymer Molecular Weight on Chain Conformation at the Polystyrene/Silver Interface.

The dependence between the conformation of polystyrene (PS) and its molecular weight (Mw) in the vicinity of a metal interface was investigated by sum frequency generation (SFG) spectroscopy. Tilt angles θ ≥ 50° (the angle between the C2 axis of the pendant phenyl ring and the surface normal) were observed for all samples because of the interaction between the aromatic rings and the metal surface. Furthermore, it was found that θ decreases with increasing Mw for PS samples ranging from 20 × 103 g/mol to 400 × 103 g/mol. The intensity of the backbone SFG signal was higher for high Mw PS, compared to low Mw PS, indicating a greater number of backbone interactions with the silver substrate surface for the high Mw sample. These structural differences are driven by different entropic and enthalpic contributions to the free energy of adsorption for different polymer molecular weights. Differences in the polymer free volume and in the relative amount of chain ends with higher mobility may also influence the chain conformation. These results suggest that important interfacial properties of polymeric thin films, such as adhesion and wettability, could be tailored by modifying the polymer Mw to achieve the desired interfacial conformation.

Modulation of NF-YB genes in Ricinus communis L. in response to different temperatures and developmental stages and functional characterization of RcNF-YB8 as an important regulator of flowering time in Arabidopsis thaliana.

We have characterized the NF-YB gene family in R. communis using bioinformatics, ecotopic expression, and transcriptomics. A total of 14 RcNF-YB genes were identified in R. communis genome using the conserved NF-YB region. This number is similar to what is found in A. thaliana (13 genes) and O. sativa (11 genes), whereas it is considerably lower to what is found in P. trichocarpa (21 genes) and S. lycopersycum (29 genes). Several regulatory cis-elements were identified in the promoter region, including low temperature, defense and stress, MIC, MYB, and abscisic acid. RcNF-YB is strongly modulated by temperature and it is dependent on the stage of germination. In general, RcNF-YB genes showed higher expression levels in dry seeds and early imbibition (EI) samples as compared to later stages of seedling development. Ectopic expression of RcNF-YB8 reduced flowering time in Arabidopsis reducing the time required for the formation of the first visible bud, the time required to open the first flower, and the time required for the formation of the first visible silique. At the end of the life cycle, ectopic expression of RcNF-YB8 affected plant height (PH), silique length (SL), the total number of silique per plant, 1000-seed weight, and seed size. Our data demonstrated the role of RcNF-YB8 in flowering time, plant height and seed production, and it shows that it may constitute a key target gene for breeding superior R. communis genotypes.

Risco de quedas no pós-operatório de videolaparoscopias e laparotomias / Risk of falls in the postoperative period of videolaparoscopies and laparotomies / Riesgo de caídas en el postoperatorio de video laparoscopias y laparotomías

Objetivo: Comparar o risco de quedas por meio da Morse Fall Scale (MFS) de pacientes submetidos a laparotomia e videolaparoscopia. Métodos: Trata-se de um estudo transversal, descritivo e observacional, realizado entre março e julho de 2019, na clínica cirúrgica de um hospital público universitário, situado em Curitiba, Paraná, Brasil. Aplicou-se um questionário desenvolvido pelos autores no primeiro dia de pós-operatório de cirurgia abdominal e avaliou-se o risco de quedas por meio do MFS. Resultados: Participaram 102 pacientes submetidos a cirurgias abdominais, 58 videolaparoscopias, 27 laparotomias e 17 bariátricas. A média de idade apresentou-se como de 50,34 (±15,11), sendo 70 (68,63%) do sexo feminino e 32 (31,37%) do sexo masculino. A análise estatística evidenciou o alto risco de quedas nas cirurgias bariátricas, de maneira que a associação do risco com o Índice de Massa Corporal (IMC) observou que quanto maior o IMC mais alto o risco de quedas. Dessa forma, também se observou um aumento do risco de quedas na associação do IMC e a idade. Os domínios que demonstraram diferenças estatisticamente significativas entre os grupos eram o histórico de quedas, o diagnóstico secundário e a marcha/ transferência. Conclusão: O risco de quedas nos pacientes avaliados mostrou relação com o tipo de cirurgia e com fatores de risco preexistentes, além disso, aumenta-se proporcionalmente à idade do paciente e ao IMC.

Objective: To compare the risk of falls using the Morse Fall Scale (MFS) of patients undergoing laparotomy and video laparoscopy.Methods: This is a cross-sectional, descriptive, and observational study, carried out between March and July 2019, in the surgical clinic of a public university hospital in Curitiba, Paraná, Brazil. A questionnaire developed by the authors was applied on the first postoperative day of abdominal surgery, and the risk of falls was assessed using the MFS. Results: 102 patients submitted to abdominal surgeries participated, 58 videolaparoscopies, 27 laparotomies, and 17 bariatric surgeries. The mean age was 50.34 (±15.11), 70 (68.63%) were female, and 32 (31.37%) were male. The statistical analysis showed the high risk of falls in bariatric surgeries, so that the association of it with the Body Mass Index (BMI) observed that the higher the BMI, the higher the risk of falls. Thus, an increased risk of falls was also observed in the association of BMI and age. The domains that showed statistically significant differences between the groups were history of falls, secondary diagnosis, and gait/transfer. Conclusion: The risk of falls in the patients evaluated was related to the type of surgery and pre-existing risk factors. In addition, it increases proportionally to the patient's age and BMI.

Objetivo: Comparar el riesgo de caídas a través del Morse Fall Scale (MFS) de pacientes sometidos a laparotomía y vídeo laparoscopia. Métodos: Se trata de un estudio transversal, descriptivo y observacional realizado entre marzo y julio de 2019 em la clínica quirúrgica de un hospital público universitario de Curitiba, Paraná, Brasil. Se aplicó una encuesta desarrollada por los autores en el primer día del postoperatorio de cirugía abdominal y se evaluó el riesgo de caídas a través del MFS. Resultados: Han participado 102 pacientes sometidos a cirugías abdominales, 58 video laparoscopias, 27 laparotomías e 17 cirugías bariátricas. La media de edad se presentó de 50,34 (±15,11) con 70 (68,63%) personas del sexo femenino y 32 (31,37%) del sexo masculino. El análisis estadístico evidenció el elevado riesgo de caídas en las cirugías bariátricas de manera que en la asociación entre el riesgo y el Índice de Masa Corporal (IMC) se observó que al mayor IMC más alto es el riesgo de caídas. Deesa manera, también se ha percibido un aumento del riesgo de caídas en la asociación entre el IMC y la edad. Los dominios que demostraron diferencias estadísticamente significativas entre los grupos eran el histórico de caídas, el diagnóstico secundario y la marcha/transferencia. Conclusión: El riesgo de caídas de los pacientes evaluados mostró relación entre el tipo de cirugía y los factores de riesgo preexistentes, además de eso, se aumenta en proporción con la edad del paciente y el IMC.

Engajamento de trabalhadores da Estratégia Saúde da Família durante a pandemia da Covid-19 / Engagement of Family Health Strategy workers during pandemic the Covid-19 / Compromiso de los trabajadores de la Estrategia de salud de la familia durante la pandemia de Covid-19

Objetivo: Avaliar o engajamento nos trabalhadores da ESF do município de Palmas (TO) durante o enfrentamento da Covid-19. Método: Estudo transversal, quantitativo, realizado com 87 trabalhadores da Estratégia Saúde da Família, de Palmas ­ TO, entre dezembro de 2020 e fevereiro de 2021. Foi utilizado um questionário para identificação do perfil dos participantes e a Escala de Engagement no Trabalho de Utrecht (UWES) e realizada as análises descritivas e inferenciais pertinentes. Resultados: Dos 87 trabalhadores, 83,92% são mulheres, com idade média de 40 anos, tempo de formação profissional médio de 10,75 anos e tempo médio de atuação na ESF de 8,64 anos. As médias encontradas para o Engagement foram: 4,36 para Vigor, 4,71 para Dedicação, 4,15 para Absorção e 4,38 para o Escore Geral. Verificou-se significância estatística apenas para "considerar o trabalho estressante", onde os participantes que consideram o trabalho estressante apresentaram menores médias na dimensão Vigor e no Engajamento Profissional. Conclusão: Os participantes apresentaram alto nível de Engajamento Profissional, sendo que os que consideram o trabalho estressante, apresentaram menores índices de Vigor e Engagement, demonstrando que é necessário intervir no cenário para manutenção e melhoria do Engajamento Profissional.

Objective: To evaluate the engagement of Family Health Strategy (FHS) workers in the city of Palmas (TO) during the Covid-19 confrontation. Method: Cross-sectional study, with a quantitative approach, carried out with 87 workers of the FHS, from Palmas - TO, through non-probabilistic sampling between December 2020 and February 2021. A questionnaire was used to profile the workers. participants and the Utrecht Work Engagement Scale (UWES) and performed descriptive and inferential analyzes relevant to the study. Results: Of the 87 workers, 83.92% are women, with an average age of 40 years, average length of professional training of 10.75 years and average length of experience in the FHS of 8.64 years. The means found for Work Engagement were: 4.36 for Vigor, 4.71 for Dedication and 4.15 for Absorption, and 4.38 for the General Score. In the association of Engagement dimensions and sociodemographic and occupational characteristics, statistical significance was found only with the variable "considering work stressful", where participants who consider work stressful had lower averages in the Vigor dimension and in Work Engagement. Conclusion: Participants showed a high level of Work Engagement, and those who consider the work stressful had lower Vigor and Engagement rates, demonstrating that it is necessary to intervene in the scenario to maintain and improve Work Engagement

Objetivo: Evaluar el involucramiento de los trabajadores en la Estrategia Salud de la Familia (ESF) en la ciudad de Palmas (TO) durante el enfrentamiento Covid-19. Método: Estudio transversal, cuantitativo, realizado con 87 trabajadores de la ESF, Palmas - TO, entre diciembre de 2020 y febrero de 2021. Se utilizó un cuestionario para identificar el perfil de los participantes y la Escala de Compromiso Laboral de Utrecht (UWES) y realizó los análisis descriptivos e inferenciales pertinentes. Resultados: De los 87 trabajadores, el 83,92% son mujeres, con una edad media de 40 años, una duración media de formación profesional de 10,75 años y una experiencia media en la ESF de 8,64 años. Los promedios encontrados para Engagement fueron: 4.36 para Vigor, 4.71 para Dedicación, 4.15 para Absorción y 4.38 para Puntaje General. La significación estadística se encontró solo para "considerar el trabajo estresante", donde los participantes que consideran el trabajo estresante tuvieron promedios más bajos en la dimensión Vigor y en Compromiso Laboral. Conclusión: Los participantes mostraron un alto nivel de Compromiso Laboral, y aquellos que consideran el trabajo estresante tuvieron menores índices de Vigor y Compromiso, demostrando que es necesario intervenir en el escenario para el mantenimiento y mejora del Compromiso Laboral.

Quantitative evaluation of total volatile organic compounds in urban and rural schools of southern Brazil.

Volatile organic compounds, VOCs, are air pollutants widely produced by biogenic and anthropogenic sources. This work quantitatively studied the presence of these gases in the internal and external environments of schools, comparing one in an urban area (La Salle School, Canoas, RS) and another in a rural area (Santa Cassia Farm School, Nova Santa Rita, RS). The aim of this study was to compare if this environmental differences (location) influence their gases concentration. Monitoring campaigns were conducted for 6 months, occurring every 2 weeks in both schools during class hours, 1 day indoors and 1 day outdoors. The results showed higher concentrations of total volatile organic compounds in the urban school external environment compared with the same rural school environment and, in the comparison between environments, the internal environments of the two schools obtained higher VOC concentrations than the external ones, except in November and December at the urban school.

Implications of iron nanoparticles in spontaneous coal combustion and the effects on climatic variables.

Atmosphere, water, and soil contamination with toxic compounds is a recurrent issue due to environmental disasters, coal burning, urbanization, and industrialization, allf of which have contributed to soil contamination over the decades. Consequently, understanding of the nanomineralogy and potential hazardous elements (PHEs) in coal area soil are always a vital topic since contaminated soil can affect the environment, agricultural safety, and human health. Colombian coal mining in the La Guajira zone has been usually been related with important health and ecological effects. Coalmine rejects from active and/or abandoned operations are causes of high intensities of potential hazardous elements (PHEs) and nanoparticles (NPs, minerals and/or amorphous compounds). Although these pollutants can be reduced by sorption to NPs, in this study was recognized an analytical procedure for understand distribution of PHEs and their relationship to iron NPs(Fe-NPs) was recognized. Non and poorrly crystalline Fe-NPs performances as the major PHEs association. This complex interaction is constant and efficient in resolving PHEs in proportions above monitoring quantities. The indefinite basis of PHEs in Colombian (La Guajira area) coalmine rejects sources results in years-long leaching of PHEs into rivers and drainages. The iron-clays and their great geomobility interfere the mitigating character that Fe hydr/oxides alone show through adsorption of PHEs and their control in spontaneous coal combustion (SCC) zones. This can have significant consequences to the probable availability of several pollutants (e.g. drinking water). The new results presented in this study add novel viewpoints into the description of Fe-NPs and its incidence in SCC areas. The methodology utilized in this work can be applied as a supplementary technique to evaluate the influence of coalmining actions on ecological and human health.

Multiple hazardous elements in nanoparticulate matter from a Caribbean industrialized atmosphere.

Modern microscopy studies are capable of revealing ultra-fine particles (UFPs) and nanoparticles (NPs) that are produced in the processes related to traffic vehicular, industrial, metropolitan, and marine aerosol dry deposition in the coastal zones. Especially, secondary aerosol passages complexes categories of NPs and UFPs, which can be accumulated on construction compounds and by dry deposition, encourages multiples monuments deterioration routes. The advanced electron microscopies method is one of the most utilized in environmental studies. Between the different industrial areas in the world, the Caribbean area is the most relevant symbols of air quality due to climatic conditions with strong winds, but this study shows that regionally the most industrialized region does not have an adequate air quality. In the present work, electron microscopy analyses are used to describe of the extent of ultra-fine particle and nanoparticles in walls in contact to weathering. Numerous phases were recognized by advanced mineralogy methods. Thanks to the new analytical procedure it was feasible to understand NPs and UFPs; the occurrence of potential hazardous elements (PHEs), most of them as minerals but also combined in multiple accumulations with Al-Cr-Fe-K-Mg-Pb-Si-Ti-Zn amorphous; and carbonaceous phases.

Eficácia a curto prazo do laser de baixa intensidade em pacientes com osteoartrite do joelho: ensaio clínico aleatório, placebo-controlado e duplo-cego / Short-term efficacy of low-level laser therapy in patients with knee osteoarthritis: a randomized placebo-controlled, double-blind clinical trial

OBJETIVO: Este estudo foi designado para avaliar a eficácia a curto prazo da laserterapia de baixa intensidade (LBI) na melhora da dor e função em pacientes portadores de osteoartrite (OA) do joelho. MÉTODOS: Participaram deste ensaio clínico aleatório, duplo-cego e controlado 47 pacientes (79 joelhos) de ambos os sexos portadores de OA do joelho, que foram distribuídos aleatoriamente em dois grupos; grupo laser com 25 pacientes (41 joelhos) e grupo placebo com 22 pacientes (38 joelhos). A LBI foi realizada três vezes por semana totalizando nove sessões, com uso do laser AsGa de 904nm, 60mW de potência média e 0,5cm² de área do feixe, sendo irradiados nove pontos no joelho com energia de 3,0J por ponto. O grupo placebo foi tratado com o mesmo aparelho de laser, porém com uma caneta selada. As avaliações Lequesne, escala visual numérica (EVN), Timed Up and Go (TUG), goniometria e dinamometria foram realizadas antes do início do tratamento e após as nove sessões da LBI. RESULTADOS: Foi encontrada melhora significante da dor e função para todas as avaliações aplicadas no grupo laser. Quando comparado o grupo laser ao grupo placebo encontrou-se diferença significante para as avaliações EVN-Repouso e Lequesne. CONCLUSÃO: O tratamento com a LBI melhora a dor e função a curto prazo de pacientes portadores de OA do joelho.

OBJECTIVE: This study was designed to evaluate the short-term efficacy of low-level laser therapy (LLLT) for improving pain and function in patients with knee osteoarthritis. METHODS: Forty-seven patients with knee osteoarthritis (79 knees), of both genders, participated in this randomized controlled double-blind clinical trial. They were randomly allocated to two groups: laser group with 25 patients (41 knees) and placebo group with 22 patients (38 knees). LLLT was performed three times a week, totaling nine sessions, using a AsGa 904 nm laser with mean power of 60 mW and beam area of 0.5 cm². Nine points were irradiated on the knee, with energy of 3.0 J/point. The placebo group was treated with the same laser device, but with a sealed probe. Evaluations using Lequesne, visual numerical scale (VNS), Timed Up and Go (TUG), goniometry and dynamometry were conducted before the treatment started and after the nine sessions of LLLT. RESULTS: A significant improvement in pain and function was found in all the assessments applied to the laser group. On comparing the laser group with the placebo group, significant differences were found in the VNS-resting and Lequesne evaluations. CONCLUSION: Treatment with LLLT improves pain and function over the short term in patients with knee osteoarthritis.

SHORT-TERM EFFICACY OF LOW-LEVEL LASER THERAPY IN PATIENTS WITH KNEE OSTEOARTHRITIS: A RANDOMIZED PLACEBO-CONTROLLED, DOUBLE-BLIND CLINICAL TRIAL.

OBJECTIVE: This study was designed to evaluate the short-term efficacy of low-level laser therapy (LLLT) for improving pain and function in patients with knee osteoarthritis. METHODS: Forty-seven patients with knee osteoarthritis (79 knees), of both genders, participated in this randomized controlled double-blind clinical trial. They were randomly allocated to two groups: laser group with 25 patients (41 knees) and placebo group with 22 patients (38 knees). LLLT was performed three times a week, totaling nine sessions, using a AsGa 904 nm laser with mean power of 60 mW and beam area of 0.5 cm(2). Nine points were irradiated on the knee, with energy of 3.0 J/point. The placebo group was treated with the same laser device, but with a sealed probe. Evaluations using Lequesne, visual numerical scale (VNS), Timed Up and Go (TUG), goniometry and dynamometry were conducted before the treatment started and after the nine sessions of LLLT. RESULTS: A significant improvement in pain and function was found in all the assessments applied to the laser group. On comparing the laser group with the placebo group, significant differences were found in the VNS-resting and Lequesne evaluations. CONCLUSION: Treatment with LLLT improves pain and function over the short term in patients with knee osteoarthritis.