RESUMO Objetivo: produzir tecnologia propulsora de segurança do cuidado na atenção hospitalar em situações catastróficas. Método: pesquisa de natureza aplicada realizada em um hospital público situado na região centro-oeste, Brasil, entre os meses de setembro de 2020 a agosto de 2021, por meio da aplicação da Soft Design Science Research, em sete etapas: delineamento do problema, com análise descritiva de indicadores hospitalares; explicitação do problema como um conjunto específico de requisitos, mediante aplicação de escalas com 108 profissionais de saúde e 75 de enfermagem, e análise descritiva e inferencial; generalização do problema, através de revisão de escopo para sistematização de uma classe de problemas; estruturação dos componentes da solução por meio de workshop orientado pelo design thinking; comparação entre o problema específico e requisitos gerais para alinhamento da solução; definição da solução; construção da solução. Resultados: a imersão no problema evidenciou desfechos que anunciam o agravamento da condição de saúde dos pacientes e percepção negativa de trabalhadores e gestores em relação ao clima de segurança em situações catastróficas, acentuado pela insatisfação da equipe de enfermagem com o suporte oferecido pela organização. A projeção deste cenário foi essencial para sistematização de soluções potencializadoras de segurança já produzidas com esta finalidade, e para a realização de experimentações orientadas pelo design, em alinhamento, estruturação, prototipagem e iteração do protótipo construído. Conclusão: produziu-se um Time de Resposta Rápida que, em situações catastróficas, permite intervir frente ao agravamento de condições clínicas do paciente, o que favorece a ampliação da taxa de sobrevida e é propulsor de segurança. Objetivo catastróficas Método centrooeste, centrooeste centro oeste, oeste centro-oeste Brasil 202 2021 Research etapas hospitalares 10 7 inferencial problemas thinking Resultados organização finalidade construído Conclusão produziuse produziu se paciente 20 1 2

ABSTRACT Objective: to produce technology that promotes safe hospital care in catastrophic situations. Method: an applied study carried out in a public hospital located in Brazil's Midwest region, between September 2020 and August 2021, using Soft Design Science Research in seven stages: outlining the problem, with descriptive analysis of hospital indicators; explaining the problem as a specific set of requirements, through the application of scales with 108 health professionals and 75 nursing staff, and descriptive and inferential analysis; generalizing the problem, through a scope review to systematize a class of problems; structuring the components of the solution through a workshop guided by design thinking; comparing the specific problem and general requirements to align the solution; defining the solution; building the solution. Results: immersion in the problem revealed outcomes that heralded the worsening of patients' health conditions and the negative perception of workers and managers regarding the safety climate in catastrophic situations, accentuated by the nursing team's dissatisfaction with the support offered by the organization. The projection of this scenario was essential for the systematization of security-enhancing solutions already produced for this purpose, and for carrying out design-oriented experiments in alignment, structuring, prototyping and iteration of the prototype built. Conclusion: a Rapid Response Team has been set up which, in catastrophic situations, makes it possible to intervene when the patient's clinical condition worsens, which helps to increase the survival rate and promotes safety. Objective situations Method Brazils Brazil s region 202 2021 stages indicators 10 7 staff problems thinking Results patients teams team organization securityenhancing security enhancing purpose designoriented oriented alignment built Conclusion patient worsens 20 1 2

RESUMEN Objetivo: producir tecnología que promueva la seguridad del cuidado en la atención hospitalaria en situaciones catastróficas. Método: investigación aplicada realizada en un hospital público ubicado en la región Centro-Oeste de Brasil, entre los meses de septiembre de 2020 y agosto de 2021, mediante la aplicación de la Soft Design Science Research, en siete etapas: perfilamiento del problema, con análisis descriptivo de indicadores hospitalarios; explicación del problema como un conjunto específico de requisitos, mediante la aplicación de escalas con 108 profesionales de la salud y 75 profesionales de enfermería, y análisis descriptivo e inferencial; generalización del problema, mediante revisión de alcance para sistematizar una clase de problemas; estructuración de los componentes de la solución a través de un taller guiado por el design thinking; comparación entre el problema específico y los requisitos generales para alinear la solución; definición de la solución; construcción de la solución. Resultados: la inmersión en el problema reveló resultados que anuncian el empeoramiento de las condiciones de salud de los pacientes y la percepción negativa de trabajadores y gestores sobre el clima de seguridad en situaciones catastróficas, acentuada por la insatisfacción del equipo de enfermería con el soporte ofrecido por la organización. La proyección de este escenario fue fundamental para sistematizar las soluciones que potencien la seguridad, ya producidas para este fin, y para realizar experimentos orientados al diseño, alineación, estructuración, prototipado e iteración del prototipo construido. Conclusión: se formó un Equipo de Respuesta Rápida que, en situaciones catastróficas, permite intervenir ante el empeoramiento de las condiciones clínicas del paciente, lo que favorece el aumento de la tasa de supervivencia y brinda seguridad. Objetivo catastróficas Método CentroOeste Centro Oeste Brasil 202 2021 Research etapas hospitalarios 10 7 inferencial problemas thinking Resultados organización fin diseño alineación construido Conclusión paciente 20 1 2

Abstract Euterpe oleracea Mart., Arecaceae, fruit (açaí) presents considerable potential for the development of new medicines due to its phytochemical composition and antioxidant activity. More recently, special attention has been given to the pharmacological potential of the fruit's oil. This study analysed the histological and histochemical effects of different dosages of açaí oil on rat's liver and thyroid cells, in order to evaluate its cytotoxic potential after administration for consecutive days. Male Wistar rats were treated with the açaí oil by gavage at doses of 30, 100 and 300 mg/kg, for 14 days, within a 24 h interval. Liver and thyroid fragments were collected for histology (hematoxylin and eosin) and histochemistry analysis (blue of Nilo (lipids), Baker (lipids), bromophenol blue (protein), PAS (polysaccharides)). The results showed that animals exposed to açaí oil presented alterations in the liver cells, where the integrity of the liver tissue was increasingly lost as the açaí oil doses increased. Nuclear pyknosis was observed in several hepatocytes, evidencing the occurrence of cell death. Alteration in the amount of lipids, polysaccharides, vacuoles in the cytoplasm, and proliferation of Kupffer cells were observed in histochemical analyzes. As for the thyroid of the treated rats, alterations were observed in the size of the follicular lumen and also in the connective tissue found between the follicles. Under the experimental conditions employed in the present study, the cytotoxicity observed in this work is worrying, specially considering the liver, when frequent or continuous damage could lead pathological disorders in this organ.

ABSTRACT The tick Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae) causes large economic losses to cattle breeders and its control is hampered by problems of resistance to the main commercial synthetic acaricides and the risk of residues in animal products. Alternative controls are important for the sustainability of cattle breeding in tropical regions, principally for organic milk production. This study evaluated the efficacy of a homeopathic preparation to control natural tick infestations. The evaluations were conducted with 24 taurine dairy cows during 12 months. The homeopathic medicine (30 CH + Sulfur 30 CH) was administered in a proportion of 1:100 (v/w) in a formulation with sugar, added to 30 kg of mineral salt. This preparation was supplied along with concentrated feed (2 kg/animal/day). The control group received the same feed mixture without the medicine. The groups were kept in separate paddocks. Data were collected on body weight, packed cell volume and number of engorged female ticks on each animal. Temperature, relative humidity and rainfall were recorded. Engorged females were collected from each group for in vitro comparison of reproductive parameters, and semi-engorged ticks for morpho-histological analysis. The mean results of body weight, packed cell volume and tick number were not statistically different between the control and treated groups: 616.5 kg and 618.6 kg; 27.9% and 27.3%; and 12.19 and 13.58 ticks, respectively. In the in vitro analyses, the average weights of the ticks (0.18 and 0.17 g) and eggs (0.07 and 0.06 g), larval hatching rate (70.1 and 76.6%) and reproductive efficiency index (54.3 and 60.6%) of the control and treated groups, respectively, also were not statistically different. Furthermore, no alteration in the ovaries was detected by microscopic analysis. Therefore, the homeopathic medicine was ineffective to control R. (B.) microplus, although the inclusion of agro-ecological practices might enhance its effect of homeopathy in controlling tick infestations.