Résumé Par la méthode historique-comparative, cet article aborde les impacts, sur les États-Unis, l’Allemagne et le Brésil, des quatre crises économiques internationales survenues jusqu’en 2019, en se concentrant principalement sur leurs effets sur le régime politique et le post-2008. Les pays sélectionnés ont eu des expériences autoritaires distinctes, anciennes ou actuelles. Je conceptualise l’État de manière tridimensionnelle : régime politique, appareil décisionnel et structure de domination politique appuyée sur des coalitions. J’argumente que les conjonctures internationales critiques ont tendance à avoir un impact sur cette tridimensionalité, facilitant l’observation de ses variations et continuités. Je formule et corrobore trois hypothèses sur ces crises : elles ont tendance à augmenter ou diminuer les niveaux de démocratie ou d’autocratie des régimes ou à les changer ; la réponse autocratisante dépend d’une relation de forces pro-entreprises, subordonnant les travailleurs ; l’engagement démocratique des acteurs s’oppose à l’autocratisation. La contribution à la littérature réside dans la manière d’aborder les processus d’autocratisation et de démocratisation, ici étudiés à travers les impacts des crises économiques internationales sur les États. Les conjonctures critiques éclairent les composants clés de la mutabilité du Léviathan. On examine le régime politique par la politique économique des relations entre l’État, les marchés et les classes sociales, et non exclusivement par les variables politico-institutionnelles. On analyse les mécanismes d’intersection de la sphère et des acteurs politico-institutionnels avec les structures et acteurs économiques et sociaux, qui, impactant la tridimensionalité de l’État, entraînent des changements de régime ou dans le régime. historiquecomparative, historiquecomparative historique comparative, comparative historique-comparative ÉtatsUnis, ÉtatsUnis États Unis, Unis États-Unis lAllemagne l Allemagne Brésil jusquen jusqu 2019 post2008. post2008 post 2008. 2008 post-2008 distinctes actuelles lÉtat État coalitions Jargumente J argumente lobservation observation continuités dautocratie d autocratie dune une proentreprises, proentreprises pro entreprises, entreprises pro-entreprises lengagement engagement soppose s oppose lautocratisation. lautocratisation autocratisation. autocratisation l’autocratisation daborder aborder dautocratisation démocratisation Léviathan lÉtat, État, sociales politicoinstitutionnelles. politicoinstitutionnelles politico institutionnelles. institutionnelles politico-institutionnelles dintersection intersection politicoinstitutionnels institutionnels sociaux qui 201 post200 200 post-200 20 post20 post-20 2 post2 post-2 post-

Resumen Por medio del método histórico comparativo, se abordan los impactos en los Estados de Estados Unidos, Alemania y Brasil, de las cuatro crisis económicas internacionales que han ocurrido hasta 2019, enfocándose, principalmente, en sus efectos en el régimen político y en el periodo posterior a 2008. Los países seleccionados tuvieron distintas experiencias autoritarias, antiguas o actuales. Defino al Estado de una forma tridimensional: régimen político, aparato decisor y estructura de dominación política respaldada en coaliciones. Argumento que las respectivas coyunturas críticas internacionales tienden a impactar esta tridimensionalidad, facilitando la observación de sus variaciones y continuidades. Así, formulo y corroboro tres hipótesis sobre esas crisis: tienden a aumentar o disminuir los niveles de democracia o autocracia de los regímenes o a cambiarlos; la respuesta autocratizante depende de una relación de fuerzas proempresarial que subordina a los trabajadores; y el compromiso democrático de los actores opera contra la autocratización. La contribución a la literatura se relaciona con el modo de abordar los procesos de autocratización y democratización aquí investigados por los impactos de las crisis económicas internacionales en los Estados. Las coyunturas críticas vislumbran componentes clave de la mutabilidad del Leviatán. Se investiga el régimen político a partir de la economía política de las relaciones entre Estado, mercados y clases sociales, y no exclusivamente por las variables político-institucionales. Se analizan mecanismos de intersección de la esfera y de los actores político-institucionales con las estructuras y actores económicos y sociales, que, impactando en la tridimensionalidad del Estado, implican cambios de régimen o en el régimen. comparativo Unidos Brasil 2019 enfocándose principalmente 2008 autoritarias actuales tridimensional coaliciones continuidades Así cambiarlos trabajadores Leviatán sociales políticoinstitucionales. políticoinstitucionales institucionales. institucionales 201 200 20 2

Abstract This study uses a historical-comparative method to examine the impacts of the four international economic crises that occurred until 2019 on the United States, Germany, and Brazil, focusing primarily on their effects on the political regime and the post-2008 period. The selected countries had different authoritarian experiences, either in the distant past or more recently. The State is conceptualized along three dimensions: political regime, decision-making apparatus, and the structure of political domination supported by coalitions. The argument is that the respective international critical junctures tend to impact this three-dimensionality, making it easier to observe their variations and continuities. Three hypotheses are formulated and corroborated regarding these crises: they tend to increase or decrease the levels of democracy or autocracy in regimes or change them; autocratization depends on a pro-business power balance that subordinates workers; the democratic commitment of actors operates against autocratization. This study’s contribution to the literature lies in the approach to processes of autocratization and democratization, which are investigated here through the impacts of international economic crises on States. Critical junctures shed light on key components of the mutability of the Leviathan. It investigates the political regime through the political economy of the relationships between the State, markets, and social classes, not exclusively through political-institutional variables. Mechanisms of intersection between the political-institutional sphere and economic and social structures and actors are analyzed. These mechanisms impact the three-dimensionality of the State, leading to changes in the regime or within the regime. historicalcomparative historical comparative 201 States Germany Brazil post2008 post 2008 post-200 period experiences recently dimensions decisionmaking decision apparatus coalitions threedimensionality, threedimensionality dimensionality, dimensionality continuities them probusiness pro business workers studys s democratization Leviathan markets classes politicalinstitutional institutional variables analyzed 20 post200 200 post-20 2 post20 post-2 post2 post-

Resumo Aborda-se, pelo método histórico-comparativo, impactos, nos Estados dos EUA, Alemanha e Brasil, das quatro crises econômicas internacionais ocorridas até 2019, focando-se, principalmente, em seus efeitos no regime político e no pós-2008. Os países selecionados tiveram distintas experiências autoritárias, remotas ou atuais. Conceituo o Estado tridimensionalmente: regime político, aparato decisor e estrutura de dominação política escorada em coalizões. Argumento que as respectivas conjunturas críticas internacionais tendem a impactar nesta sua tridimensionalidade, facilitando a observação de suas variações e continuidades. Formulo e corroboro três hipóteses sobre essas crises: elas tendem a aumentar ou diminuir os níveis de democracia ou autocracia dos regimes ou a mudá-los; a resposta autocratizante depende de uma relação de forças pró-empresarial, que subordine os trabalhadores; o compromisso democrático dos atores opera contra a autocratização. A contribuição com a literatura está no modo de abordagem dos processos de autocratização e democratização, aqui investigados pelos impactos das crises econômicas internacionais nos Estados. As conjunturas críticas iluminam componentes-chave da mutabilidade do Leviatã. Investiga-se o regime político pela economia política das relações entre Estado, mercados e classes sociais, e não exclusivamente pelas variáveis político-institucionais. Analisam-se mecanismos de intersecção da esfera e dos atores político-institucionais com as estruturas e atores econômicos e sociais, que, impactando na tridimensionalidade do Estado, ensejam mudanças de regime ou no regime. Abordase, Abordase Aborda se, se Aborda-se históricocomparativo, históricocomparativo histórico comparativo, comparativo histórico-comparativo EUA Brasil 2019 focandose, focandose focando focando-se principalmente pós2008. pós2008 pós 2008. 2008 pós-2008 autoritárias atuais tridimensionalmente coalizões continuidades mudálos mudá los mudá-los próempresarial, próempresarial pró empresarial, empresarial pró-empresarial trabalhadores democratização componenteschave componentes chave Leviatã Investigase Investiga sociais políticoinstitucionais. políticoinstitucionais institucionais. institucionais Analisamse Analisam 201 pós200 200 pós-200 20 pós20 pós-20 2 pós2 pós-2 pós-

Résumé Les Indiens, en particulier ceux issus de ce qui était alors compris comme “métissage” ou “miscegenèse” avec des blancs et des noirs, sont devenus un élément clé dans la théorie du médecin et anthropologue Raimundo Nina Rodrigues. Habituellement, son héritage intellectuel est lié à la population “africo-bahianaise”, compte tenu de ses études détaillées sur l’ethnologie urbaine. Cet article cherche à explorer, parmi ses propositions, le rôle du “brasílio-guarany” et son impact négatif sur le développement du pays, selon une perspective scientifique. Nina Rodrigues a engagé un dialogue avec deux auteurs de renom du XIXe siècle sur les Amérindiens du Nord du pays (en particulier au Pará et en Amazonie), José Veríssimo et Couto de Magalhães. Nous soutenons que le résultat de cette confrontation d’idées est un exemple frappant de la manière dont le médecin maranhense a opéré un certain déplacement par rapport au racisme scientifique, dont il s’éloigne (mais n’abandonne pas), en incorporant des éléments de l’évolutionnisme social et en créant une lecture unique des relations sociales et biologiques entre les trois races constitutives de la nation. Indiens métissage “métissage miscegenèse “miscegenèse noirs Habituellement africobahianaise, africobahianaise africo bahianaise , “africo-bahianaise” lethnologie l ethnologie urbaine explorer propositions brasílioguarany brasílio guarany “brasílio-guarany scientifique Amazonie, Amazonie Amazonie) Magalhães didées d idées séloigne s éloigne mais nabandonne n abandonne pas, pas pas) lévolutionnisme évolutionnisme nation “africo-bahianaise

Resumo Los indios, en especial aquellos provenientes de lo que entonces era entendido como “mestizaje” o “mestización” con blancos y negros, se convierten en un factor clave en el plano teórico del médico y antropólogo Raimundo Nina Rodrigues. Habitualmente, su herencia intelectual es vinculada a la población “afro-bahiana”, teniendo em cuenta sus estudios detallados sobre etnología urbana. Este artículo busca explorar, entre sus propuestas, el papel del “brasílio-guarany” y su factor nocivo para el desarrollo del país, desde una perspectiva científica. Nina Rodrigues abrió el diálogo con dos autores destacados en el siglo XIX sobre los amerindios del Norte del país (en especial Pará y Amazonas), José Veríssimo y Couto de Magalhães. Sostenemos que el resultado de esta confrontación de ideas es un ejemplo contundente de cómo el médico marañense hizo un cambio en su posición frente al racismo científico, del cual se distancia (pero no abandona), incorporando elementos del evolucionismo social y creando una lectura única de las relaciones sociales y biológicas entre las llamadas tres razas formadoras de la nación. indios mestizaje “mestizaje mestización “mestización negros Habitualmente afrobahiana, afrobahiana afro bahiana , “afro-bahiana” urbana explorar propuestas brasílioguarany brasílio guarany “brasílio-guarany científica Amazonas, Amazonas Amazonas) Magalhães científico pero abandona, abandona abandona) nación “afro-bahiana

Abstract Indians, especially those who came from what was then understood as mestiçagem or miscegenation with whites and blacks, became a key factor in the theoretical framework of physician and anthropologist Raimundo Nina Rodrigues. Typically, his intellectual heritage is linked to the “African-Bahian” population, given his detailed studies on urban ethnology. This article seeks to explore among his proposals the role of “Brasílio-Guarany” and its perceived harmful impact on the country’s development from a scientistic perspective. Nina Rodrigues engaged in a dialogue regarding Brazil’s Indians from the country’s Northern region (especially Pará and Amazonas) with two prominent nineteenth-century authors: José Veríssimo and Couto de Magalhães. We argue that the result of this clash of ideas is a striking example of how the Maranhão-born doctor underwent a shift in his position regarding scientific racism, from which he distances himself (but does not entirely abandon), incorporating elements of social evolutionism and creating a unique interpretation of the social and biological relations among the so-called three races shaping the nation. blacks Typically AfricanBahian African Bahian “African-Bahian population ethnology BrasílioGuarany Brasílio Guarany “Brasílio-Guarany countrys country s perspective Brazils Brazil Amazonas nineteenthcentury nineteenth century authors Magalhães Maranhãoborn Maranhão born racism but abandon, abandon , abandon) socalled so called nation

Resumo Os índios, em especial aqueles provindos do que então era entendido como “mestiçagem” ou “miscigenação” com brancos e negros, tornaram-se um fator-chave no plano teórico do médico e antropólogo Raimundo Nina Rodrigues. Habitualmente, sua herança intelectual é vinculada à população “áfrico-bahiana”, posto seus estudos detalhados sobre etnologia urbana. Este artigo busca explorar, dentre suas propostas, o papel do “brasílio-guarany” e seu fator nocivo para o desenvolvimento do país, na ótica cientificista. Nina Rodrigues abriu diálogo com dois autores de destaque no século XIX sobre os ameríndios do Norte do país (em especial Pará e Amazonas), José Veríssimo e Couto de Magalhães. Sustentamos que o resultado deste confronto de ideias é um exemplo contundente de como o médico maranhense realizou certo deslocamento de sua posição em face do racismo científico, do qual ele se afasta (mas não abandona), incorporando elementos do evolucionismo-social e criando uma leitura única das relações sociais e biológicas entre as chamadas três raças formadoras da nação. índios mestiçagem “mestiçagem miscigenação “miscigenação negros tornaramse tornaram fatorchave chave Habitualmente áfricobahiana, áfricobahiana áfrico bahiana , “áfrico-bahiana” urbana explorar propostas brasílioguarany brasílio guarany “brasílio-guarany cientificista Amazonas, Amazonas Amazonas) Magalhães científico mas abandona, abandona abandona) evolucionismosocial evolucionismo social nação “áfrico-bahiana

Seeking a viable alternative to fossil fuels as the primary energy source, bioethanol has emerged as a promising second-generation fuel derived from lignocellulosic biomass. With Brazil ranking pineapple as the third most produced fruit in temporary crops, this study aims to assess the impact of chemical pretreatment techniques, specifically organosolv and diluted acid, on the residual biomass of Pérola pineapple peel to enhance bioethanol production. Employing an experimental design that incorporates temperature, reaction time, and varying concentrations of organic solvent, the study examines their effects on the susceptibility of the substrate to saccharification for future bioethanol generation. Factors such as alphacellulose, hemicellulose, and lignin were evaluated in triplicate and subjected to statistical analysis using the Tukey test with a confidence level of 95%. Upon application of the pretreatment methods, it was observed that the organosolv solvent approach (utilizing water and ethanol) with sulfuric acid exhibited superior sugar conversion, yielding the highest concentration of xylose at 9.13 g L-1. Additionally, the pretreated biomass contained 1.38 g L 1 of cellobiose, 3.11 g L-1 of arabinose, and 3.76 g L-1 of glucose. This technique demonstrates promising potential for obtaining fermentable sugars crucial for bioethanol production. source secondgeneration second generation crops techniques production temperature time alphacellulose hemicellulose 95 95% methods utilizing ethanol conversion 913 9 13 9.1 L1. L1 1. Additionally 138 38 1.3 cellobiose 311 3 11 3.1 L- arabinose 376 76 3.7 glucose 91 9. 31 3. 37 7

ABSTRACT Purpose: To describe the epidemiological and clinical profile of hospitalized patients with retinoblastoma in Brazil. Methods: Using data from the Hospital Cancer Registry of the Instituto Nacional de Câncer, patients with the morphological codes of retinoblastoma who were diagnosed between 2000 to 2018, aged 0–19 years, and followed up in registered hospitals (analytical cases) were selected. The relative and absolute frequencies of demographic, clinical, diagnostic, therapeutic, and outcome variables were described. Hospital performance indicators were calculated and compared between hospitals qualified and not qualified to treat pediatric oncology cases and between hospitals with different case volumes (<20, 20-75, >75 cases). Results: Of the 2,269 identified analytical cases from 86 institutions, 48% were from the Southeast, 54% were male, and 66% were aged <4 years. The proportion of missing data (NA) was too high for several variables. Approximately 84% of the patients were from the public health system, 40% had a positive family history, and 88% had unilateral involvement. The first treatment included surgery in 58.3% of the patients (NA=2), Approximately 36.6% of these patients achieved complete remission, 10.8% achieved partial remission, and 12.7% died (NA=59%). Hospital performance indicators were within the target in >90% of the patients. The median time between the first appointment and diagnosis (6 days, interquartile range [IQR] 1–14) was significantly lower and the median time to death was longer (343 days, IQR, 212-539) in high-volume hospitals (>75 cases) than in medium- and low-volume hospitals. Conclusions: Despite the high proportion of missing data, we found that the delay in diagnosis is due to prehospital factors. Additionally, there is a need for educational programs for healthcare professionals and families that emphasize early identification and referral to specialized centers. Future studies should focus on the impact of Hospital Cancer Registry data completeness on outcomes, causes of delay in diagnosis, regional inequalities, and barriers to accessing specialized services. Purpose Brazil Methods Câncer 200 2018 019 0 19 0–1 years selected demographic diagnostic therapeutic described <20, 20 (<20 2075, 2075 75, 75 20-75 >7 cases. . Results 2269 2 269 2,26 8 institutions 48 Southeast 54 male 66 4 < NA (NA 84 system 40 history 88 involvement 583 58 3 58.3 NA=2, NA2 NA=2 , (NA=2) 366 36 6 36.6 remission 108 10 10.8 127 12 7 12.7 NA=59%. NA59 NA=59% 59 (NA=59%) 90 >90 ( days IQR [IQR 1–14 114 1 14 343 (34 212539 212 539 212-539 highvolume volume (>7 medium lowvolume low Conclusions factors Additionally centers outcomes inequalities services 201 01 0– <20 (<2 207 20-7 > 226 26 2,2 5 58. NA= (NA=2 36. 10. 12. NA5 NA=59 (NA=59% 9 >9 1–1 11 34 (3 21253 21 53 212-53 (> <2 (< 20- 22 2, (NA= NA=5 (NA=59 1– 2125 212-5 (NA=5 212-

Gold and platinum bimetallic nanoparticles, Au@PtNPs, have gained attention due to their plasmonic properties. The controlled synthesis of Au@PtNPs involves complex parameters, and the resulting synergy between Au and Pt introduces possibilities for tailoring their properties. This study explores the effects of key-parameters of synthesis (gold core diameters, reaction time, and Pt concentration) on the final properties of Au@PtNPs. Gold nanoparticles of varying diameters were synthesized and used as cores for the reduction of hexachloroplatinic acid, forming a surrounding shell of Pt nanoparticles. The parameters were systematically tuned to understand their impact on morphology, dimension, stability, and plasmonic properties of Au@PtNPs. Increasing Pt precursor concentration resulted in thicker and denser Pt shells, broadening the localized surface plasmon resonance (LSPR) band and improving Au@PtNPs stability. These properties are essential for applications such as photothermal treatment. The synthesis achieved satisfactory products within just 1 h of Pt4+ reduction at mild temperature without using surfactants. Only limited changes in plasmonic properties were observed after 4 h of synthesis, suggesting an optimal reaction period. Manipulating Au core diameter provided LSPR band control, with smaller cores exhibiting greater broadening towards the infrared region. This systematic exploration provided valuable insights for understanding key-parameters governing the synthesis and properties of Au@PtNPs. AuPtNPs PtNPs keyparameters key gold time acid morphology dimension stability shells (LSPR treatment Pt4 surfactants period control region

EFFECT OF LIQUID SWINE WASTEWATER DOSES ON PHYSICAL, CHEMICAL AND ELECTROCHEMICAL ATTRIBUTES IN A CERRADO OXISOL. The addition of organic residues enhances soil and plant organic matter and nutrient content. To gauge the impact of varying liquid swine waste (LSW) levels on soil, we studied changes in a clayey Oxisol’s physical, chemical, and electrochemical traits from the Cerrado. LSW doses (0, 50, 150, 450, 600 m3 ha−1) were applied to the 0-0.20 m layer in a randomized design with three replicates. Post a 30-day incubation at 60% field capacity, the soil underwent mineralogical, physical (clay dispersed in water - CDW), chemical (sodium adsorption ratio - SAR, cation exchange capacity - CEC, base saturation - V%), and electrochemical (pH in H2O and KCl, ApH, point of zero charge - PZC, point of zero salt effect - PZSE, surface electric potential - iµo, and electrical conductivity - EC) analyses. The levels of exchangeable Ca, K, Mg, Na, and available P increased with increasing LSW doses. Increasing LSW doses in the soil led to an increase in EC, but soil salinization was not observed at the highest dose. With the application of LSW doses, there was a decrease in pH, ApH, PZSE, and an increase in CEC, PZC and ψo. Despite the increase in ψo, low clay dispersibility was observed. PHYSICAL OXISOL content (LSW Oxisols Oxisol s Cerrado 0, 0 (0 50 150 450 60 ha−1 ha1 ha 1 00.20 0020 0.20 20 0-0.2 replicates 30day day 30 mineralogical CDW, CDW , CDW) sodium SAR CEC V%, V V% V%) pH HO H O KCl ApH PZSE iµo EC analyses Ca K Mg Na dose ψo ( 5 15 45 6 ha− 00 00.2 002 020 0.2 2 0-0. 3 4 00. 02 0. 0-0 0-

The coronavirus disease (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has had a profound impact on global health and socio-economic conditions. To date, various vaccines have been administered worldwide in an effort to curb the spread of the virus. Despite vaccination efforts, there have been complications. Existing antiviral drugs have shown limited effectiveness, prompting the use of computational methods to understand the dynamics of the virus and develop suitable treatments. The current study focuses on using biocompatible para-sulfonato-calix[4]arenes to dock against two key proteins of SARS-CoV-2, namely ribonucleic acid (RNA)-dependent RNA polymerase, and helicase. Docking results indicate a strong binding affinity of these compounds to the target proteins, with higher scores compared to commonly used medications. Molecular dynamics (MD) simulation validates the docking results, showing stable protein-ligand complexes over time. The compounds are also screened for absorption, distribution, metabolism, and excretion properties and toxicity, suggesting their potential as lead candidates for inhibiting the virus’s key proteins. However, further in vivo and in vitro studies are recommended to confirm these findings. COVID19 COVID 19 (COVID-19 pandemic SARSCoV2, SARSCoV2 SARSCoV SARS CoV , (SARS-CoV-2) socioeconomic socio economic conditions date efforts complications effectiveness treatments parasulfonatocalix4arenes parasulfonatocalixarenes para sulfonato calix 4 arenes 2, SARS-CoV-2 RNAdependent dependent polymerase helicase medications MD (MD proteinligand protein ligand time absorption distribution metabolism toxicity viruss s However findings COVID1 1 (COVID-1 (SARS-CoV-2 parasulfonatocalix SARS-CoV- (COVID- (SARS-CoV- SARS-CoV (COVID (SARS-CoV

To control vehicle emissions, the new homologation process must be reported according to the California Maximum Incremental Reactivity (MIR) scale’s procedure to calculate the ozone forming potential (OFP) of each new vehicle. This work calculates an MIR scale suitable for the Brazilian reality. Meteorological and hourly pollutant data from the Bangu Automatic Air Quality Station was inventoried and processed from March to September 2020 to adjust OZIPR Lagrangean model and obtain the MIR scale by making small increments in the concentrations of each volatile organic compounds (VOC) and calculate the ozone increase/decrease. It was found that the VOC that had the greatest impact on ozone formation was 1,2,4-trimethylbenzene, with 2.06 ppb O3 ppbC-1 VOC. The OFP was calculated based on the VOC emissions of a vehicle and it was found a value of 9.421 mg O3 km-1, a much lower value when compared using the California MIR scale of 136.608 mg O3 km-1. It is concluded that meteorological conditions and VOC speciation data in the air mixture in the studied region directly affect the photochemical reactions of ozone formation. (MIR scales s (OFP reality 202 (VOC increasedecrease increase decrease increase/decrease 1,2,4trimethylbenzene, 124trimethylbenzene trimethylbenzene 1,2,4 trimethylbenzene, 1 2 4 1,2,4-trimethylbenzene 206 06 2.0 O ppbC1 ppbC ppbC- 9421 9 421 9.42 km1, km1 km 1, km-1 136608 136 608 136.60 km1. 1. 20 4trimethylbenzene 1,2,4trimethylbenzene 124 1,2, 0 2. 942 42 9.4 km- 13660 13 60 136.6 12 1,2 94 9. 1366 6 136.

Resumen Marco contextual: La implantación de la Práctica Basada en la Evidencia (PBE) es esencial para la calidad de los cuidados de enfermería. Las acciones emprendidas por los líderes formales son esenciales para implantar la PBE, y es fundamental conocer sus percepciones. Objetivo: Conocer las percepciones de los líderes formales de enfermería sobre la PBE. Metodología: Estudio exploratorio descriptivo con enfoque cualitativo. Se realizaron entrevistas semiestructuradas a 17 líderes de tres hospitales portugueses. Los datos se analizaron mediante análisis de contenido y el programa MAXQDA Analytic Pro 2022. Se garantizaron los presupuestos éticos. Resultados: Surgieron dos temas con sus respectivas categorías − Conocimiento sobre la PBE (Concepto de la PBE, Impacto de la PBE en los resultados sanitarios y Autopercepción del conocimiento sobre la PBE); Papel en la aplicación de la PBE (comportamientos y características). Conclusión: Los líderes describieron su percepción del concepto de PBE y la relación del Impacto de la PBE con los resultados sanitarios, la necesidad de conocimientos y su inversión formativa, así como su papel en este proceso. Los futuros programas de formación deberían aplicarse en este ámbito.

Abstract Background: The implementation of Evidence-Based Practice (EBP) is critical to the quality of nursing care. Formal leaders play a crucial role in developing interventions to implement EBP, so it is important to understand their perceptions. Objective: To examine formal nurse leaders’ perceptions of EBP. Methodology: Descriptive exploratory study with a qualitative approach. Semi-structured interviews were conducted with 17 leaders from three Portuguese hospitals. Data were analyzed using content analysis and MAXQDA Analytics Pro 2022 software. All ethical principles were observed. Results: Two themes and their categories emerged − Knowledge of EBP (Concept of EBP, Impact of EBP on health outcomes, and Self-perception of the knowledge about EBP) and Role in EBP implementation (behaviors and characteristics). Conclusion: The leaders described their perception of the concept of EBP and the association between the impact of EBP and health outcomes, the need for knowledge, and the investment in training, as well as their role in this process. Future training programs should be implemented in this area.

Resumo Enquadramento: A implementação da Prática Baseada na Evidência (PBE) é crucial para a qualidade dos cuidados de enfermagem. As ações desenvolvidas pelos líderes formais são essenciais para implementar a PBE, tornando-se determinante conhecer as suas perceções. Objetivo: Conhecer as perceções de líderes formais de enfermagem sobre a PBE. Metodologia: Estudo descritivo exploratório com abordagem qualitativa. Foram realizadas entrevistas semiestruturadas a 17 líderes de três hospitais portugueses. Os dados foram analisados através de análise de conteúdo e do software MAXQDA Analytics Pro 2022. Salvaguardados os pressupostos éticos. Resultados: Emergiram dois temas com respetivas categorias − Conhecimento sobre PBE (Conceito de PBE, Impacto da PBE nos resultados em saúde e Autoperceção do conhecimento sobre PBE); Papel na implementação da PBE (comportamentos e caraterísticas). Conclusão: Os líderes descreveram a sua perceção sobre o Conceito de PBE e a relação do Impacto da PBE com resultados em saúde, a necessidade de conhecimento e o seu investimento formativo, bem como o seu papel neste processo. Futuros programas formativos deverão ser implementados nesta área.

Resumen Marco contextual: La pandemia de SARS- CoV-2 ha planteado numerosos retos a las madres de niños y jóvenes de hasta 18 años, debido a la gestión de las responsabilidades inherentes a su papel social. Objetivo: Comprender los significados y contextos de las experiencias de las madres portuguesas de niños y jóvenes adolescentes de hasta 18 años, durante la situación de pandemia de COVID-19. Metodología: Estudio cualitativo, descriptivo y retrospectivo mediante el análisis de contenido de Bardin. Participaron en el estudio 16 mujeres, madres de niños y jóvenes adolescentes de hasta 18 años. Resultados: Surgieron un total de nueve categorías - Sentimientos; Percepción de la salud; Cambios en el estado de salud; Experiencias notables; Significado de las experiencias; Dificultades sentidas durante la situación de pandemia; Dificultades sentidas en la educación; Dificultades sentidas como madre y esposa, e Impactos en la educación de los hijos. Conclusión: La mayoría de las madres entrevistadas consideraron que el periodo de la pandemia de COVID-19 fue una fase impactante en sus vidas, lo que dio lugar a una ambivalencia de sentimientos y diferentes contextos experienciales.

Abstract Background: The COVID-19 pandemic has posed many challenges for mothers of children and adolescents up to 18 years of age in managing the responsibilities associated with their social roles. Objective: To understand the meanings and contexts of the experiences of Portuguese mothers of children and adolescents up to 18 years of age during the COVID-19 pandemic. Methodology: Qualitative, descriptive, and retrospective study using Bardin’s content analysis. The sample consisted of 16 mothers of children and adolescents up to 18 years of age. Results: Nine categories emerged - Feelings; Perception of health; Changes in health status; Significant experiences; Meaning of experiences; Difficulties felt during the pandemic; Difficulties felt in education; Difficulties felt as a mother and wife; and Impact on children’s education. Conclusion: Most of the interviewed mothers considered the COVID-19 pandemic a significant period in their lives, giving rise to ambivalent feelings and distinct life contexts.

Resumo Enquadramento: A pandemia por COVID-19 trouxe inúmeros desafios às mães de crianças e jovens até aos 18 anos de idade, pela gestão de responsabilidades a que o seu papel social se encontra inerente. Objetivo: Compreender quais são os significados e os contextos das vivências de mães portuguesas de crianças e jovens adolescentes até aos 18 anos de idade, no período de situação pandémica por COVID-19; Metodologia: Estudo qualitativo, descritivo e retrospetivo recorrendo à análise de conteúdo de Bardin. Participaram no estudo 16 mulheres, mães de crianças e jovens adolescentes até aos 18 anos de idade. Resultados: Emergiram um total de nove categorias, sendo elas - Sentimentos; Perceção de saúde; Alterações no estado de saúde; experiências marcantes; Significado das experiências; Dificuldades sentidas durante o período de situação pandémica; dificuldades sentidas na educação; dificuldades sentidas enquanto mãe e mulher e impactos na educação dos filhos. Conclusão: A maioria das mães entrevistadas considerou o período pandémico por COVID-19 como uma fase impactante nas suas vidas, originando ambivalência de sentimentos e contextos vivenciais distintos.

Resumen Marco contextual: Se ha reportado la participación de distracciones en errores clínicos y fallos de procedimiento. Objetivo: Analizar las distracciones del personal de enfermería durante la preparación y administración de fármacos de alto riesgo. Metodología: Estudio transversal desarrollado en una unidad de cuidados intensivos y una unidad de hospitalización. Se observaron distracciones del personal de enfermería durante el proceso de medicación a través de dos listas de control. La muestra fue seleccionada por conveniencia (abril-mayo 2019). Los datos cuantitativos se analizaron mediante estadística descriptiva (IBM SPSS Statistics, versión 24.0). Los datos cualitativos se analizaron mediante análisis de contenido. Resultados: Hubo 137 distracciones en 193 procesos de medicación. La mayoría de las distracciones fueron iniciadas por otros miembros del equipo sanitario a través de conversaciones. La mayoría se produjeron en la fase de preparación y fueron negativas y se gestionaron mediante la estrategia multitarea. Conclusión: Las distracciones durante el proceso de medicación se referían principalmente a las comunicaciones profesionales y sociales. La importancia de esas distracciones variaba en función de la fase del proceso.

Abstract Background: Interruptions have been reported to contribute to clinical errors and procedural failures. Objective: To analyze the interruptions experienced by nurses during the preparation and administration of high-risk medications. Methodology: A cross-sectional study was conducted in an intensive care and inpatient unit. The interruptions experienced by nurses during the medication process were observed through two checklists. The sample was selected by convenience in April-May 2019. Descriptive statistics was used to analyze quantitative data in IBM SPSS Statistics software, version 24.0, while content analysis was used to analyze qualitative data. Results: In 193 medication processes, there were 137 interruptions. Other members of the healthcare team initiated most interruptions through conversations. These interruptions were mostly negative and occurred during the preparation phase. The multitasking strategy was used to manage them. Conclusion: Interruptions during the medication process were primarily associated with professional and social communications. The impact of these interruptions varied depending on the phase of the process.

Resumo Enquadramento: Estudos indicam que as interrupções contribuem para erros clínicos e falhas em procedimentos. Objetivo: Analisar as interrupções vivenciadas pelos enfermeiros durante a preparação e administração de medicamentos de alto risco. Metodologia: Foi realizado um estudo transversal numa unidade de cuidados intensivos e numa unidade de internamento. As interrupções vivenciadas pelos enfermeiros durante o processo de medicação foram observadas com a ajuda de duas checklists. A amostra foi selecionada por conveniência em abril e maio de 2019. Os dados quantitativos foram analisados através de estatística descritiva no programa IBM SPSS Statistics, versão 24.0, enquanto os dados qualitativos foram tratados por meio da análise de conteúdo. Resultados: Observaram-se 137 interrupções em 193 processos de medicação. A maioria das interrupções foi iniciada por outros membros da equipa de cuidados de saúde por meio de conversas. Estas interrupções foram maioritariamente prejudiciais e ocorreram durante a fase de preparação. A estratégia multitarefa foi utilizada para as gerir. Conclusão: As interrupções ocorridas durante o processo de medicação eram maioritariamente associadas com comunicações profissionais e sociais. A sua relevância diferiu consoante a fase do processo.

Abstract Introduction: Evidence suggests that herbivores, such as peccaries, shape vegetation structure and diversity through predation, trampling, dispersal, and rooting behavior. Objective: To evaluate the impact of peccaries (Dycotiles tajacu) on the understory vegetation of the tropical rainforest in the Nogal-La Selva Local Biological Corridor, Costa Rica, comparing a site with the absence of peccaries to another with the presence of these animals. Methodology: From June to November 2021, 20 experimental exclusions and 20 free access plots, each measuring 2 m2 were used to quantify herbivory, the number of leaf blades, damaged leaves, healthy leaves, sapling height, and fallen biomass at both sites. Results: A higher sapling density was found in the Nogal Reserve, but a lower sapling diversity, while in La Selva there was a higher sapling diversity, but a lower density of seedlings. Herbivory and sapling height in La Selva exceeded those in Nogal. The exclusion of peccaries reduced seedling damage but did not affect the dynamics of fallen biomass. Conclusion: For the design, implementation, and evaluation of the effectiveness of biological corridors, it is crucial to consider plant-animal interactions to enhance the flow of ecological processes through functional and structural connectivity, analyzed from interactions such as those presented in this paper.

Resumen Introducción: Existe evidencia que herbívoros, como los saínos, dan forma a la estructura y diversidad de la vegetación a través del comportamiento de depredación, pisoteo, dispersión y enraizamiento. Objetivo: Evaluar el impacto de los saínos (Dycotiles tajacu) en la vegetación del sotobosque del bosque tropical húmedo en el Corredor Biológico Local Nogal-La Selva, Costa Rica, en un sitio con ausencia y en otro con presencia de saínos. Métodos: De junio a noviembre de 2021 se utilizaron 20 exclusiones experimentales y 20 parcelas de acceso libre de 2 m2, se cuantifico la herbivoría, número de láminas foliares, hojas dañadas, hojas sanas, altura de brinzales y biomasa caída en ambos sitios. Resultados: Se encontró una mayor densidad de brinzales en Reserva Nogal pero una menor diversidad, contrario en La Selva donde se encontró una mayor diversidad de brinzales, pero una menor densidad de plántulas. La herbivoría y la altura de brinzales en La Selva fue mayor que en Nogal. La exclusión de los saínos disminuyó el daño a las plántulas, pero no afectó la dinámica de la biomasa caída. Conclusión: Es necesario contemplar para el diseño, implementación y evaluación de la efectividad de corredores biológicos, las interacciones planta-animal, para potencializar el flujo de procesos ecológicos mediante la conectividad funcional y estructural, analizada a partir de interacciones como las presentadas en este trabajo.

Abstract The technique of bending wood by vaporization presents itself as a viable option for curvilinear structural projects, such as gridshells. Coniferous woods are often used in roof structures because, in addition to the desired relationship between mechanical strength and density, they allow the complete treatment of the cross-section of the piece. However, characteristics such as the predominance of sapwood or heartwood and the presence of defects are variables that affect structural performance. The aim of this study was to evaluate the bending limit of Acrocarpus laxinifloius (Indian cedar) veneers with a bending radius of 21 cm at different thicknesses. The impact of the predominance of sapwood or heartwood and the presence of defects on the bending strength was also investigated. The literature indicates that plastic flexibilization by steam occurs at 100°C, with 2.4 minutes for each millimeter of lamella thickness, which were the parameters considered in this study. The statistical analysis indicated a thickness limit of 8 mm for the lamellae to bend and the greater presence of sapwood or heartwood, as well as wood defects, did not significantly affect the bending force. projects gridshells because density crosssection cross section piece However performance Indian cedar 2 thicknesses investigated 100C C 100 100°C 24 4 2. force 10 1

Resumo Atécnica de vergamento da madeira por vaporização se apresenta como opção viável para projetos de estruturas curvilíneas, como as gridshells. Madeiras coníferas são comumente adotadas em estruturas de cobertura, pois além da desejada relação entre resistência mecânica e densidade, permitem o completo tratamento da seção transversal da peça. Entretanto, características como a predominância de alburno ou de cerne e a presença de defeitos são variáveis que afetam o desempenho estrutural. O objetivo deste estudo foi avaliar o limite de vergamento de lamelas de Acrocarpus flaxinifloius (cedro indiano) com raio de curvatura de 21 cm em diferentes espessuras. Também se investigou o impacto da predominância de alburno ou cerne e da presença de defeitos na força de vergamento. A literatura indica que a flexibilização plástica por vapor ocorre a 100°C, com 2,4 minutos para cada milímetro de espessura da lamela, parâmetros estes considerados neste estudo. A análise estatística indicou o limite de 8 mm de espessura para o vergamento das lamelas e a maior presença de alburno ou de cerne, bem como os defeitos da madeira, não afetou significativamente a força de vergamento. curvilíneas gridshells cobertura densidade peça Entretanto estrutural cedro indiano 2 espessuras 100C C 100 100°C 24 4 2, lamela 10 1

Abstract Concrete is a material susceptible to different degradation mechanisms that can lead to the formation of expansive products resulting from external sulfate attack (ESA). In this context, supplementary cementing materials (SCMs), like fly ash, metakaolin, silica fume, and rice husk ash, have effectively suppressed the effects caused by ESA. However, each SCM may present different behavior depending on the exposure conditions, sulfate type, SO 4 2- concentration, etc. Thus, this study presents a multicriteria decision-making analysis of fixed binder content for mortars (1: 3.2 a/agl=0.60) aiming to achieve the best performance against ESA (exposure to Na 2 SO 4 or MgSO 4 ). The criteria selected for the decision-making analysis are the sustainability impact of the mixture, economic performance, and the effect of ESA on the mechanical properties and durability of the mortars. The results indicate that the most suitable composition for aggressive environments containing Na 2 SO 4 was the mortar containing 10% rice husk ash and, for exposure to MgSO 4 , the use of fly ash in the same proportion. . (ESA) context SCMs, SCMs (SCMs) metakaolin fume However conditions type concentration etc Thus decisionmaking decision making 1 (1 32 3 3. a/agl=0.60 aagl060 aagl agl 0 60 ) mixture 10 proportion (ESA (SCMs ( a/agl=0.6 aagl06 6 a/agl=0. aagl0 a/agl=0 a/agl= a/agl

Resumo O concreto é um material suscetível a diferentes mecanismos de degradação que podem causar a formação de produtos expansivos, como o ataque externo por sulfatos. As adições minerais, como a cinza volante, o metacaulim, a sílica ativa e a sílica de casca de arroz são opções que possuem sua eficácia comprovada em argamassas e concretos expostos a ambientes com sulfatos. O presente estudo busca, por meio de um método de análise multicritérios de decisão, realizar a escolha do teor de aglomerante em argamassas (1: 3,2 a/agl=0,60) que apresentar melhor desempenho frente ao ataque externo por sulfato de sódio (Na2SO4) e magnésio (MgSO4). Tendo uma base de dados pré-definida, foram escolhidos critérios e subcritérios para composição da matriz hierárquica, levando em consideração a sustentabilidade, desempenho econômico das diferentes composições e o efeito do ataque químico nas propriedades mecânicas e na durabilidade das argamassas. Ao final da análise, a composição mais indicada para ambientes agressivos contendo Na2SO4 foi a argamassa contendo 10% de sílica da casca de arroz em substituição parcial ao cimento Portland e, para a exposição ao MgSO4, a utilização de cinza volante na mesma proporção. expansivos sulfatos minerais metacaulim busca decisão 1 (1 32 3 2 3, a/agl=0,60 aagl060 aagl agl 0 60 NaSO Na SO (Na2SO4 MgSO4. MgSO4 MgSO . (MgSO4) prédefinida, prédefinida pré definida, definida pré-definida hierárquica sustentabilidade Na2SO 10 proporção ( a/agl=0,6 aagl06 6 (Na2SO (MgSO4 a/agl=0, aagl0 (MgSO a/agl=0 a/agl= a/agl

Abstract This work presents a model for determining the depth of projectile perforation based on the RBL formula for ballistic impact, validated with microconcrete specimens made with Portland cement and coarse aggregate of granite and basalt. The model was validated with 7.62 x 51 mm FMJ (Full Metal Jacketed) ammunition on specimens with 5 cm of diameter and a height variation of 5.00 - 10.00 cm The transformation of kinetic energy into heat was found to be one of the forms of energy release. Experimental results showed that the calculation model proposed here predicts penetration depth values closer to the experimental values than current models, which is favorable for the safety. impact basalt 762 7 62 7.6 Full Jacketed 500 00 5.0 1000 10 10.0 release models safety 76 6 7. 50 0 5. 100 1 10.

Resumo Este trabalho apresenta um modelo para determinar a profundidade da penetração de um projetil baseado sobre a formula RBL para impactos balísticos, validados com corpos de prova de microconcreto feito em cimento Portland, agregados de granitos grossos e basalto. O modelo foi validado com munição FMJ (revestido totalmente de metal) de 7,62 x 51 mm sobre corpos de prova de 5 cm de diâmetro e alturas variando entre 5 a 10 cm. Foi possível determinar que uma das formas de liberação de energia ocorreu a través da energia cinética em calor. Os resultados experimentais mostram que o modelo calculado aqui predisse valores de profundidade de penetração mais próximos aos valores experimentais usados nos modelos atuais, das quais são favoráveis para a segurança. balísticos Portland basalto revestido metal 762 7 62 7,6 1 calor atuais segurança 76 6 7,