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Bats play an integral key ecological role in forests, but there is limited understanding of how their richness and activity vary over time in temperate forests and the effect of habitat variables on these species. Herein we describe the seasonal variation of bat species richness, activity and assemblage structure during the reproductive season in a sclerophyllous forest, an endangered temperate Mediterranean forest located in Chile’s biodiversity hotspot. Additionally, we explored the relationship between bat activity and environmental variables (air temperature, vegetation cover, and proximity to water bodies). Species richness and bat activity varied during the breeding season and exhibited two peaks: spring and summer end, markedly decreasing in mid-summer. During spring, the bat assemblage exhibited greater species richness, diversity and evenness, whereas from the end of summer until autumn, both diversity and evenness decreased. Monthly average air temperatures had a positive association with total bat activity, although there was evidence of a threshold temperature over which bat activity significantly decreased. Canopy cover had a negative influence on the activity of Tadarida brasiliensis and Lasiurus varius, whereas increasing distance to water bodies was associated with a lower activity of T. brasiliensis and L. villosissimus. Our study demonstrates that bat diversity and bat activity vary greatly during the reproductive season in an endangered temperate forest, highlighting the importance of knowing seasonal patterns and evidencing that multiple surveys will improve our understanding of bat communities. This study provides relevant information to aid bat monitoring and conservation in the biodiversity hotspot of central Chile.

In November 2021, the President of Mexico (2018-2024) declared that the priority megaprojects of the National Development Plan (Maya Train, Isthmus of Tehuantepec Interoceanic Corridor, Dos Bocas Refinery) fall within the realm of national security. Public and private investments in these projects are directed towards southeastern Mexico, covering the states of Oaxaca, Chiapas, Quintana Roo, Campeche, Yucatán, and Tabasco. These regions are home to indigenous peoples and communities that hold 45% of Mexico’s total social property. In some cases, these communities are visibly linked to national political organizations that defend land and territory. The decree is considered a state of exception applied to land-territory use, with dual implications. On one hand, it represents the undivided social field monopolized by monetary metrics. On the other hand, it signifies the expansion of a neocolonial condition promoted by the Mexican federal government, which marginalizes the voice of resistance in favor of adopting the capital logic defined by the stratification of the global economy. The methodology involves participatory action research since 2019, collaborative research through the coordination of workshops, caravans, marches, and political-community meetings, promoted in conjunction with assemblies fighting for territorial defense. We anticipate the increased use of such state of exception in response to the intertwined rise of health, environmental, and economic contingencies that drive the economic cycle, coupled with ineffective governmental policies formulated for regular times. In other words, the state of exception is activated to ensure the continuity of capital accumulation driven by the concentration of private property.

RESUMO A transição para um novo regime mais livre no Brasil passará por uma crise econômica, espaço limitado para escolhas de política econômica, desequilíbrio crônico das contas fiscais e inflação muito elevada. Esta breve nota debate essas questões e como superá-las.

ABSTRACT The rice husk was chemically treated with acetic acid and calcined at 600 °C, in an uncontrolled atmosphere to obtain the ash (RHA), and in an oxygen-limited atmosphere to produce the biochar (BC). The influence of the thermal treatment on the adsorbent properties for removing cationic (methylene blue) and anionic (methyl orange) dyes was investigated. Both materials showed amorphous structures rich in silica, with acicular morphology and a high roughness. High surface areas (157.2 and 215.5 m²g-1) and pH at the point of zero charge close to neutrality (6.73 and 6.58) for RHA and BC were found, respectively. The anionic dye was adsorbed only by BC due to its contribution to the π- π stacking interaction between the C=C bonds of the adsorbent and the benzene rings of the dye. In contrast, the cationic dye was adsorbed by electrostatic interaction between the Si-O-Si and Si-OH groups of the adsorbents, with the positive charge of the dye. All adsorption isotherms adjusted better to the SIPS model, suggesting adsorption in homogeneous and heterogeneous sites. The observed results suggest good adsorption capacities and the interactions between surface groups on the adsorbents and functional groups of the contaminants are the most important mechanism in the adsorption of dyes of different ionic natures on surfaces derived from rice husk.

In this work, a comparative study is presented to evaluate the performance of iterative methods to solve nonlinear systems applied to grid impedance estimation. The iterative methods of Newton-Raphson, Potra-Pták, and Chun were embedded in the control system of a three-phase inverter supported by a photovoltaic plant connected to the grid. The adopted impedance estimation technique consists of successive variation of the power injected into the grid, more precisely, at three different levels. The voltage and current amplitudes at the point of common coupling~(PCC) are monitored and serve as input for the iterative methods, which, after processing them, provide an estimate of the grid impedance. To compare the performance between the methods, the following merit figures were listed: execution time, number of iterations required to deliver the estimates, percentage error, efficiency index, computational efficiency, computational efficiency index, and stability of the iterative method. The results presented were obtained through real-time simulations. From that, it was possible to conclude about the method with the best performance, thus contributing to greater assertiveness on the part of designers when choosing the most efficient iterative method to be embedded in a microcontroller for grid impedance estimation purposes.

Neste trabalho, apresenta-se uma estratégia de controle aplicada a um sistema para inserção de energia fotovoltaica na rede e compensação de tensão na carga. Como parte da estratégia de controle, faz-se uso de uma técnica que utiliza separadamente as componentes de sequência positiva, negativa e zero da tensão no Ponto de Acoplamento Comum (PAC), aqui denominada Decomposição Instantânea em Componentes de Sequência (DICSE). A metodologia proposta provê ao sistema a capacidade de operar adequadamente mesmo durante a ocorrência de faltas assimétricas no PAC. Para validar esta contribuição foram realizadas simulações em tempo real, onde o sistema foi submetido a dois diferentes tipos de faltas assimétricas. As faltas consideradas são do tipo curto-circuito. A partir dos resultados obtidos conclui-se que o método proposto é promissor, pois agrega mais robustez ao sistema, tendo em vista que a maioria das faltas ocorridas nos sistemas de distribuição são do tipo assimétricas.

Objective: We aimed to determine the prevalence of self-reported swallowing difficulty (dysphagia) among older Colombians and to explore the factors associated with this condition. Methods: This study presents a secondary analysis of the SABE-Colombia survey, a cross-sectional study of community-dwelling older adults. The dependent variable was self-reported swallowing difficulty, assessed through the question: “How often do you have difficulty or discomfort swallowing?” Descriptive and bivariate analyses of the sample were performed, followed by multivariate analysis, adjusting for confounding variables. Results: The final sample included 19 004 older Colombians, whose mean age was 69 years (56% women). The overall prevalence of swallowing difficulty was 12.2%. In the multivariate analysis, significant associations were observed between swallowing difficulty and several factors, including male sex (OR 1.14, 95%CI 1.03 – 1.26), age > 80 years (OR 1.26, 95%CI 1.08 – 1.47), dependence in activities of daily living (OR 1.62, 95%CI 1.23 – 2.13), cognitive impairment (OR 1.49, 95%CI 1.30 – 1.70), depressive symptoms (OR 1.38, 95%CI 1.15 – 1.65), sarcopenia (OR 1.32, 95%CI 1.02 – 1.69), malnutrition (OR 1.35, 95%CI 1.23 – 1.49), and osteoarticular disease (OR 1.18, 95%CI 1.07 – 1.38). Conclusion: There was a high prevalence of swallowing difficulty among older community-dwelling Colombians. Our results showed a strong correlation between swallowing difficulty and risk factors such as cognitive impairment, depressive symptoms, osteoarticular disease, and dependence in activities of daily living, but not with malnutrition or sarcopenia.

El objetivo de esta investigación es conocer la situación jurídico-protectora y perfil caracterológico de los adolescentes, de la región de Los Lagos (Chile), que ingresaron en Programas de Intervención Especializada para Niños, Niñas y Adolescentes (PAS), área de protección de derechos de la niñez, entre 2020 y 2022, cuarentena y postcuarentena del COVID19. Tiene un enfoque cuantitativo analítico-explicativo y no experimental, basado en el análisis de información documental de fuentes primarias: carpetas individuales y registros del Servicio Mejor Infancia. Buscamos comprender este fenómeno, desde la perspectiva de los derechos humanos y la victimización terciaria, utilizando análisis de regresión logística multifactorial con SPSS®-21.0. Los resultados revelan un número significativo de adolescentes atendidos y correlaciones significativas entre la duración de la participación en el sistema de protección, estructura familiar, etapa de desarrollo, género y su vulnerabilidad académica. Existe una tendencia caracterológica y de protección jurídica coincidente entre los adolescentes hospitalizados en PAS.

A prevenção da obesidade infantil é uma questão crítica para a saúde pública, pois a grande maioria do excesso de peso é adquirido ainda em idade pré-escolar. De acordo com a Organização Mundial de Saúde, em 2016, 41 milhões de crianças apresentavam excesso de peso ou obesidade com menos de 5 anos. A obesidade é difícil de combater, persistindo na idade adulta, e aumenta o risco de doenças crónicas. Embora os comportamentos de estilo de vida modificáveis, como alimentação saudável e atividade física, sejam determinantes no sucesso do combate à obesidade, outros fatores da sociedade atual decorrentes do avanço tecnológico têm um peso marcado nesta doença. Para prevenir a obesidade na primeira infância, é importante entender os fatores de risco e as suas interações. As intervenções multidisciplinares demonstram ser eficazes, quando há disponibilidade e motivação, principalmente do ambiente familiar e escolar, onde as crianças estão inseridas. No entanto, desenvolver e avaliar intervenções complexas para a prevenção da obesidade é um desafio para todos os envolvidos, profissionais de saúde, crianças, famílias e outros cuidadores.Esta revisão tem como objetivo discutir as linhas mais recentes para a prevenção e abordagem da obesidade infantil, analisando as evidências das intervenções e discutindo as barreiras da sua aplicação.

El presente artículo constituye una aproximación teórica al uso de los Entornos Innovadores de Aprendizaje (EIA) como contextos educativos inclusivos en la educación obligatoria. Los EIA combinan un diseño innovador del espacio y prácticas educativas innovadoras para favorecer la inclusión educativa y responder a las necesidades del alumnado. Se destaca la importancia del Diseño Universal para el Aprendizaje (DUA) y el Diseño Universal para el Aprendizaje Accesible (DUA-A) como teorías inclusivas que se pueden aplicar en estos entornos, afianzando de esta forma la primera idea. A modo de conclusión y como aportación novedosa se proponen una serie de características que deben tener estos EIA para diseñarse correctamente y facilitar la inclusión de todo el alumnado.

Mesoamerican cloud forests support a rich and unique biodiversity but face severe threats from increasing habitat degradation and climate change. Here, we present an updated overview of the amphibians and reptiles of Cusuco National Park (CNP), an isolated cloud forest in the Sierra de Omoa, Northwest Honduras. Based on surveys conducted over a 17-year period, we report the presence of 105 confirmed species of amphibians (30) and reptiles (75) within the reserve. This includes numerous threatened and regionally endemic amphibian species, as well as several reptile species previously unrecorded within the park. Given that it harbours approximately 26% of all recorded Honduran herpetofauna, our study highlights CNP as the most diverse forest region in Honduras with respect to the reptile and amphibian diversity documented to date. Our findings reinforce the plea to actively protect CNP as a globally valuable biodiversity hotspot and a centre of herpetofaunal endemicity. Furthermore, in the face of rapid deforestation across Mesoamerica, our findings highlight the need for expanded biodiversity studies across extant forest regions in Honduras to refine species distribution ranges and facilitate timely and effective conservation measures.

Biogeography has as a central theme, which is the study of geographic ranges of species that are determined by evolutionary history, abiotic factors, and biotic interactions. Understanding the influence of biotic interactions on geographic ranges is a topic that has been little explored, especially in a way that compares species that vary in intensity of interaction. Here, we assessed interaction intensity as a determinant of geographic range overlap between ant-following birds and army ants in Mexico and Central America. We hypothesized that the intensity of the interaction between army ants and ant-following birds, obligate or facultative, predicts the overlap of geographic ranges of interacting species, as well as the extension of geographic ranges. We generated species distribution models with MAXENT and estimated the percentage of overlap between two species of army ants and 10 species of ant-following birds. Contrary to our predictions, Bayesian regression models found no support for an estimated higher range overlap for obligate ant-following birds and army ants, or wider geographic ranges for facultative ant-following bird species. However, our results suggested trends for higher percentages of range overlap between obligate ant-following birds and army ants, and for geographic ranges of facultative ant-following birds extending to areas without the presence of army ants. Our research encourages further exploration of the biogeography of biotic interactions as part of a quantitative gradient of intensities and not as qualitative categories, integrating spatial and temporal variation in the intensity of interaction.

Introduction and objectives: Aortic stenosis is the most common valvular heart disease. The number of octogenarians proposed for intervention is growing due to increased lifespan. In this manuscript we aim to evaluate perioperative outcome and long-term survival after surgical aortic valve replacement (SAVR) in octogenarians, comparing patients with low surgical risk (EuroscoreII

Diverse elements have driven inflation in the Cuban economy in the early 2020s, but the big-bang devaluation of the peso in 2021—the key measure that unlocks monetary reform—stands out as the main determinant. Analysis indicates that the inflation rate ranged between 174% and 700%, well above the government’s 2021 consumer price index estimate (77%) and closer to the deflator of household consumption derived from the national income accounts (442%). Even with this larger inflation, there is room for a real depreciation of the peso in the short term. The relative rise of tradable goods prices and incomplete pass-through from the exchange rate to inflation create new incentives and enhance financial transparency in the short term. However, the absence of sufficient structural reforms, the complex macroeconomic scenario, and the persistence of high fiscal deficit, inflation, and devaluation of the peso in the informal market after 2021 put most of the potential benefits of the monetary reform at risk. Monetary instability is a deep, continuing problem.

This article examines the adaptive market hypothesis in the five most important Latin American stock indices. To that end, we apply three versions of the variance ratio test, as well as the Brock-Dechert-Scheinkman test for nonlinear predictability. Additionally, we perform the Dominguez-Lobato and generalized spectral tests to evaluate the Martingale difference hypothesis. Moreover, we consider salient news related to the plausible market inefficiencies detected by these four tests. Finally, we apply a GARCH-M model to assess the risk-return relationship through time. Our results suggest that the predictability of stock returns varies over time. Furthermore, the efficiency in each market behaves differently over time. All in all, the analyzed emerging market indices satisfy the adaptive market hypothesis, given the switching behavior between periods of efficiencies and inefficiencies, since the adaptive market hypothesis suggests that market efficiency and market anomalies might coexist in capital markets.

Abstract The utilization of waste or by-products in geopolymers is an effective strategy that contributes to the development of more sustainable ceramics. The present study aimed to evaluate the physico-mechanical properties of compositions prepared by partially replacing aluminosilicate precursors (metakaolin or calcined diatomite) with solid wastes (granite, roof tile chamotte, or glass powder) at contents of 10, 20, and 40 wt%. Geopolymers were synthesized by blending the solid raw materials (precursor+wastes) with an alkaline activating solution comprising NaOH and colloidal silica suspension. The samples were cured at 40 °C for 24 h, and the following analyses were conducted: elastic modulus, compressive strength, porosity, density, X-ray diffraction, and Fourier-transform infrared spectroscopy measurements. The results demonstrated that the formulation containing 10 wt% of chamotte exhibited the best performance, showing a remarkable mechanical strength of 31.7 MPa after one day of curing. Therefore, by incorporating waste materials into geopolymers, not only can the environmental impact be minimized, but it also presents an opportunity to utilize resources that would otherwise go to waste.

Abstract Alumina ceramics were reinforced with different amounts of stabilized-tetragonal zirconia nanoparticles, 3Y-TZP, and their properties were evaluated aiming for future applications in orthopedic medicine. Different amounts of 3Y-TZP (3 to 15 wt%) were mixed with Al2O3 powder, using high-energy milling (400 rpm-24 h). Samples were uniaxially compacted and sintered at 1600 °C-2 h. The samples were characterized by their relative density, microstructure, and crystalline phases. Furthermore, Vickers hardness, fracture toughness, and bending strength were determined. After the high-energy milling process, a considerable amount of monoclinic (m) ZrO2 was detected in the powder mixtures, besides the α-Al2O3 and tetragonal (t) ZrO2 phases. After sintering the samples presented relative densities greater than 98.5%, regardless of the amount of the Y-TZP additions used. Furthermore, the monoclinic phase was reconverted into the tetragonal phase during sintering. The Vickers hardness varied between 1750 and 1690 HV, depending on the amount of Y-TZP added. Bending strength and fracture toughness were also sensitive to the addition of Y-TZP, with values increasing from 351.5 to 701.7 MPa and KIC from 3.5 to 5.6 MPa.m1/2, indicating that the t-ZrO2 grains enable the activation of the transformation toughening mechanisms such as t→m phase transformation and residual stress. The biological responses of the composites, evaluated by their cytotoxicity and chemical solubility, accredit the materials developed for future in vitro and in vivo studies aimed at application as biomaterials.

Abstract Lightweight mortars are indicated for services that require low specific mass composites. There are several lightweight aggregates available on the market. Waste rubber from tires is a low-density waste option that can be used as lightweight aggregate. The rubber waste when used in mortar reduces its density, in addition to bringing benefits from an environmental point of view. In this research, the mechanical behavior, and physical properties of mortars in which the natural fine aggregate contents were replaced by mixtures in different proportions of rubber, expanded vermiculite, and expanded clay were investigated. For the analysis of the properties of the composites, they were submitted to tests of dynamic modulus of elasticity, damping, compressive strength, flexural strength, coefficient of capillarity, density, and determination of ultrasonic wave transmission velocity. All tested mortars met the requirements of the Brazilian standard, being indicated for laying and covering walls and ceilings, in addition to having excellent acoustic and damping performance.

Abstract ZrO2-ZrSiO4 composites obtained from mixtures of 3Y-TZP and SiO2 powders were investigated. Commercial 3Y-TZP powder and mixtures containing 5 or 10 wt% of SiO2 were prepared. Specimens (n=10/group) were uniaxially compacted and sintered at 1500 °C-2 h (5 °C/min). Sintered samples were characterized by their relative density, X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and Vickers nanoindentation. The monolithic-ZrO2 sample presented full densification while increasing of SiO2 content progressively reduced the relative density. The crystalline phases presented in composites were tetragonal-ZrO2, cubic-ZrO2, ZrSiO4, monoclinic-ZrO2, and residual cristobalite (SiO2). Microstructural analysis indicated a distribution of zirconia grains, with heterogeneous regions rich in SiO2 surrounded by ZrSiO4 grains. Vickers hardness of 1590±19 HV for monolithic ZrO2, 1475±27 HV for ZrO2-5 wt% SiO2, and 1336±32 HV for ZrO2-10 wt% SiO2 were obtained indicating reduction in hardness with increasing SiO2 fraction. Furthermore, a reduction in fracture toughness was observed (7.2±0.8, 6.7±0.5, and 5.4±1.0 MPa.m1/2, respectively) and Young’s moduli measured were 174.1, 169.7, and 225.9 GPa, respectively. These experiments demonstrated, preliminarily, that the ZrO2-ZrSiO4 composite, based on 3Y-TZP-SiO2 powder mixtures, can achieve good levels of densification and present reasonab le mechanical properties, requiring improvements in microstructural homogenization. However, the presence of SiO2 and ZrSiO4 can improve the adhesion of zirconia to resin cement, requiring future studies focused on adhesion to confirm its viability.

Abstract The effect of adding different Y2O3 contents on the physical and mechanical properties of Ce-TZP/Al2O3 composites was investigated. Ce-TZP/Al2O3 powder blends containing 1~10 wt% Y2O3 were compacted at 100 MPa-30 s and sintered at 1500 °C-2 h or 1600 °C-2 h. The materials were characterized by X-ray diffraction and scanning electron microscopy, Raman spectroscopy, relative density, and the mechanical properties of Vickers hardness and fracture toughness. After sintering, the relative density of the sintered samples varied between 92.7% and 96.3%. Furthermore, the addition of Y2O3 resulted in an increase in the amount of cubic zirconia (c-ZrO2) and an increase in grain size in relation to the sample without the addition of Y2O3. With the increase of Y2O3 in the composition and consequent increase in the cubic ZrO2 phase content, although the hardness values did not present statistically significant variations, indicating average value of 12 GPa, a decrease in fracture toughness values was observed (10.0~5.5 MPa.m1/2) as a direct function of the reduction in the population of tetragonal zirconia grains, responsible for the toughening mechanism by phase transformation in these composites.

The knowledge of chemistry connected to environmental problems and sustainable development can provide an opportunity for dynamic, investigative, and directed teaching towards the recognition of chemistry itself as a science and social practice. From this perspective, this work aimed to investigate how discussions involving topics related to environmental education are conducted by researchers and/or professionals in chemical education, based on articles published in the journal Química Nova na Escola (QNEsc). The selection of articles was made considering publications from QNEsc between the years 1995 and 2022, focusing on terms such as environmental education, environment, pollution, environmental aspects, sustainability, and sustainable development present in the title, abstract, and/or keywords of the published articles. The selected texts were analyzed using Iramuteq software, applying correspondence factorial analysis (CFA), hierarchical descendant classification (HDC), similarity analysis, and word cloud using their respective abstracts. The data show that topics such as water, pesticides, waste, and plastic materials (polymers) were the most addressed by the publications, indicating a path that seeks to present and discuss proposals that value the need for sustainable actions, addressing environmental issues that directly impact the way humans use natural resources in the present and future.

The extraction and processing of ornamental rocks generate a very significant amount of waste, representing an environmental and public health problem. The residue is a fine-grained compound by rock powder and inputs used in the processing process have a potential economic value. The present study was carried out to evaluate the efficiency of the waste generated in the discoloration of an aqueous solution containing methylene blue dye, such as alternative for treating textile effluents. The samples were characterized by X-ray diffraction, inductively coupled plasma optical emission spectroscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy. The catalytic properties of the samples were evaluated in the Fenton and photo Fenton reactions at pH 3 and natural pH. The best decolorization efficiency (≈ 95%) was achieved using the GRM catalyst at pH 3, after 5 min of photo Fenton reaction. Importantly, owing to its excellent structural and chemical stability, the samples showed a decolorization efficiency above 95% after 5 consecutive cycles of 30 min of reaction. This innovative strategy not only offers a new prospect for the rational disposal of abrasive mud waste, but also contributes to minimizing environmental impacts, promoting sustainable development in the stone industry.

We present two slightly different constructions of a SIR model in which both the time taken to remove the individual from the infectious compartment and the infectivity have a memory according to Mittag-Leffler distributions. The second construction clearly points out where the proposed generalizations are acting, starting from the classic SIR model. Using integrodifferential techniques, we state and demonstrate novel analytically results on positivity, monotonicity in limiting case, and equilibrium points. The results are also verified numerically.

Soil correction and fertilization are important in the formation of pastures, but many producers neglect them or use ineffective alternatives. Slow-release fertilizers may harm the establishment of forage plants, as this is a crucial moment during the pasture formation stage. The objective was to evaluate establishment fertilization strategies on the morphogenic, structural characteristics and productivity of Xaraés grass (Urochloa brizantha cv. Xaraés). To this end, two experimental trials were conducted in a greenhouse, both under a completely randomized design. In the first, three establishment fertilization strategies were tested (strategy 1: without lime/NPK; strategy 2: lime + NPK; strategy 3: natural reactive phosphate), with six replications. In the second, a 3 × 10 factorial scheme was used, corresponding to the three establishment fertilization strategies and 10 evaluation dates (32, 39, 46, 53, 60, 67, 74, 81, 88, and 95 days) after emergence. of plants (DAE). In experiment 1 the morphogenic characteristics of the plant were evaluated, in the second the structure and dry mass production of the aerial part and roots of Xaraés grass were evaluated Higher (P

ABSTRACT Chickpea has recently gained prominence in agriculture, being an excellent option for crop rotation in areas cultivated with soybean or corn. Seeds must have good physiological quality, mainly during storage, to ensure crop success. Seeds undergo metabolic reactions that impair their performance when stored improperly. In this context, a study was carried out to evaluate the physiological variables of the chickpea cultivar BRS Aleppo in different types of packaging and storage environments. The analyses were performed with seeds evaluating water content, germination, first count, and accelerated aging, according to established standards. Therefore, the physiological quality of chickpea seeds can be preserved through controlled storage in hermetic packaging, thus ensuring their viability and vigor over time.

Hospital laundry is an important source of environmental pollution because its effluent contains high loads of organic matter and microorganisms. Conventionally, the treatment is carried out using aluminum sulfate, a low-cost and highly efficient coagulant that is related to secondary contamination due to the generation of non-biodegradable sludge, its ability to accumulate metals and toxicity. Aiming for sustainable alternatives, the efficiency of tannin from the natural coagulant and Moringa oleifera seed was evaluated in relation to aluminum sulfate, seeking to adapt the color and turbidity parameters and determine the antimicrobial activity of the seed. Using a concentration of 100 mg L-1 of aluminum sulfate, 97.4 and 93.95% of color and turbidity removals in the effluent were obtained, respectively. With 50 mg L-1 tannin showed an efficiency of 84.96% for color removal and 89.75% for turbidity. Tests were also carried out with Moringa oleifera seeds using saline seed extract, crushed seeds and aqueous seed extract, with a reduction in conductivity by more than 99%, removing pollutant ions for the saline extract. Of the methodologies used, the best result was obtained with the aqueous extract, achieving removals of 89.63% of color, 78.33% of turbidity, and inhibition of more than 98.1% of microorganism growth.

Abstract Objective: This study investigated the incidence of suicidal ideation and its associated risk factors in the state of São Paulo in the Brazilian Longitudinal Study of Adult Health (Estudo Longitudinal de Saúde do Adulto [ELSA-Brasil]) cohort during the coronavirus disease 2019 (COVID-19) pandemic. Methods: In a pre-pandemic ELSA-Brasil onsite assessment in 2016-2018 (wave 3) and a pandemic online assessment in May-July 2020 (wave COVID), we assessed suicidal ideation using the Clinical Interview Schedule-Revised (CIS-R). Single and multi predictor logistic regressions were performed using sociodemographic characteristics, household financial impact during the pandemic, presence of previous chronic diseases, alcohol abuse, adverse childhood experiences (ACE), living alone, and previous common mental disorders (CMD) as predictors. Incidence of suicidal ideation was used as outcome. Results: Out of 4,191 participants in wave 3, 2,117 (50.5%) also answered the COVID wave. There was a threefold increase in suicide ideation, from 34 (1.8%) to 104 (5.6%) participants. In multiple predictor models, we found that previous CMD (odds ratio [OR] 7.17; 95% confidence interval [95%CI] 4.43 - 11.58) and ACE (OR 1.72; 95%CI 1.09 - 2.72) increased the odds of incident suicidal ideation. The sociodemographic predictors female sex, younger age, and low income were significant risk factors in the single predictor models only. Conclusion: These findings underscore the importance of monitoring and supporting individuals who suffered ACE and have a history of mental health disorders. This is especially critical in times of heightened societal stress, such as the COVID-19 pandemic.

Referência do artigo comentado: Decock, Diana Chao; Debona, Vilmar. Schopenhauer socially engaged in India?: on Vivekananda's possible interpretation of Schopenhauerian tat tvam asi”. Trans/Form/Ação: Revista de Filosofia da Unesp, v. 47, n. 2, “Feminine perspectives in philosophical thought”, e02400287, 2024. Disponível em: https://revistas.marilia.unesp.br/index.php/transformacao/article/view/16198.

Testing of inverter-based resources (IBRs) faces challenges in establishing standardized procedures across all product development stages. Most of the testing approaches use Hardware-in-the-Loop (HIL) during the early stages independently from the final product testing, which can lead to discrepant results. To solve these issues, this paper proposes a unified platform for automatically testing IBRs. It can be used during all product development stages, from pure simulation to Controller Hardware-in-the-Loop (CHIL) and finally on the complete commercial product, ensuring uniform test procedures with different test setups. A case study describing compliance tests of grid-connection codes of photovoltaic (PV) inverters are presented to demonstrate the proposed approach. Experimental tests were performed in accordance to Brazilian grid-connection codes in an ISO/IEC 17025 accredited laboratory. The results obtained with the proposed platform in CHIL and full-hardware showed high similarity with the ones obtained with the accredited laboratory, validating the proposed approach. In addition, the platform can be used to perform tests not specified in standards and to verify the performance of IBRs in operating conditions that are often difficult to be tested in laboratory. Ensuring consistent test procedures, the platform facilitates comparable results along all the testing stages, reducing the product development cycle.

ABSTRACT: The aim of this study was to describe the pathological findings and causes of jaundice in 44 cats (Felis catus) over a six-year period. The cats were from two Brazilian metropolitan areas: 34.1% were female, 56.8% were male, and 9.1% had no information regarding their sex. Their ages ranged from 6 months to 13 years. Most of the cats examined were of a mixed breed (40/44), whereas the others were Angora (2/44), Oriental Short Hair (1/44) and Persian (1/44). All animals had mild to marked jaundice, and 39 were diagnosed with mild to marked anemia. The classification of icterus types (pre-hepatic, hepatic and post-hepatic) was based on gross and microscopic findings. Of the 44 animals, 10 were classified as pre-hepatic icterus, 33 with hepatic icterus and seven with post-hepatic icterus. In some cats, two types of icterus were found, of which five were classified as pre-hepatic and hepatic icterus, and one case was hepatic and post-hepatic icterus. According to the gross and microscopic findings, the cause of pre-hepatic icterus was idiopathic hemolytic anemia. The most frequent cause of hepatic icterus was hepatic lipidosis (26/44), followed by perihepatitis and hepatitis compatible with feline infectious peritonitis, lymphoma, glycogenic degeneration, cholangiocarcinoma and metastatic myeloid leukemia. In animals with post-hepatic icterus, the causes included cholangitis due to Platynosomum spp. infection, cholangioma of the common hepatic duct, and chronic cholangitis. Understanding the etiopathogenesis of jaundice requires an accurate clinic-pathological study and concomitant causes of the disease in cats should be considered.

Resumo O presente ensaio traz uma análise a respeito da confiança e das relações de poder no sistema de mercado de auditoria. Utilizando a teoria do macromarketing sobre sistemas de mercado e os estudos sociológicos sobre governamentalidade, analisa o papel da confiança como técnica de governamentalidade, mecanismo social e objeto de mercado. O contexto do fenômeno se verifica nos serviços ofertados pelas empresas de auditoria, com ênfase nos demonstrativos contábeis, que geram confiança nos mercados e, dessa forma, interferem nos processos estratégicos e na modelagem dos sistemas de mercado. Estratégica nas relações de poder nos sistemas de mercado, a confiança perpassa o fator intrínseco de mecanismo social e se torna um escasso instrumento para a governança dos sistemas, transformando-se num atributo de estimado valor no mercado. Por fim, espera-se que as contribuições dos distintos papéis da confiança sejam relevantes para outros estudos no campo do macromarketing.

Objective: The risk of suicide is higher among health care workers than other workers. This study investigated the association between social support and suicidal ideation and behavior during the COVID-19 pandemic among Brazilian health care workers. Methods: This study used data from 10,885 respondents to the first (time point 1 – between May and June of 2020) and second (time point 2 – between December 2020 and February 2021) cross-sectional online surveys about mental health and quality of life among Brazilian health care workers during the COVID-19 pandemic. The relationship between social support as the independent variable (time point 1) and suicidal ideation and behavior as the outcomes (time point 2) was investigated through logistic regression analysis. Results: Greater social support was associated with a significantly lower risk of reporting suicidal ideation and behavior in the month prior to follow-up assessment (adjusted OR: 0.71, 95%CI 0.66-0.76 and adjusted OR 0.61, 95%CI 0.54-0.68, respectively). These associations were independent of sex, age, feelings of loneliness, and self-reported psychiatric disorders. Conclusion: Social support is associated with a lower risk of suicidality among health care workers, and its protective role appears more closely related to suicidal behavior.

The expansion of great-scale photovoltaic (PV) power plants indicates the need for an accurate lifetime assessment of inverters to maintain energy supply availability. In this context, the study contributes in two ways. First, we use machine-learning (ML) models for junction temperature prediction. Second, we perform reliability assessments using a 10-year mission profile in three Brazilian cities. The thermal loadings are obtained through a look-up table approach. Although the ML models exhibit different performances in regression, other factors must be considered, such as easy-to-apply, interpretability, and generalization capability. The reliability assessment is typically based on an annual mission profile, assuming damage repeats until failure. However, only the historical series can confirm whether this choice was acceptable, pessimistic, or optimistic. For instance, in Campos do Jordão-SP, if the chosen mission profile is 2014, the expected failure of 10\% of inverter samples occurs three years earlier than suggested by the historical series. Regardless of the methodology used to estimate thermal loading or accumulated damage, the mission profile significantly influences photovoltaic inverter reliability, indicating that if more data is available, the chosen mission profile should align with the historical series.

Neste artigo, o controle preditivo do tipo FCS-MPC (Finite-Control-Set Model Predictive Control) é utilizado para controlar a inserção de correntes harmônicas da rede elétrica por meio de um filtro ativo de potência em derivação (FAPD), sendo o propósito atenuar a distorção harmônica total destas correntes e melhorar o fator de potência da rede elétrica. Este tipo de controle preditivo pode ter seu desempenho melhorado a partir de alterações de sua estrutura interna, como o tipo de discretização utilizado para a descrição do preditor. Sendo assim, o objetivo deste trabalho é de realizar uma análise comparativa de desempenho entre diferentes tipos de discretização do preditor. Para tanto serão apresentadas quatro abordagens diferentes, a saber, Euler Regressivo, Trapezoidal, Forma Centrada e Passo Duplo Progressivo (PDP). Os modelos de interação entre o FAPD e a rede elétrica, a construção do algoritmo do controle FCS-MPC e as discretizações do preditor são apresentados e discutidos. Os resultados de simulação são extraídos a partir de uma plataforma do sistema completo (rede + FAPD + controle) operando de forma on-line no Simulink/Matlab. Esta proposta é validada com o uso de um simulador de tempo real OPAL-RT OP5700 disponível no laboratório.

This work deals with solving continuous-time nonlinear complementarity problems defined on two types of nonempty closed convex cones: a polyhedral cone (positive octant) and a second-order cone. Theoretical results that establish a relationship between such problems and the variational inequalities problem are presented. We show that global minimizers of an unconstrained continuous-time programming problem are solutions to the continuous-time nonlinear complementarity problem. Moreover, a relation is set up so that a stationary point of an unconstrained continuous-time programming problem, in which the objective function involves the Fischer-Burmeister function, is a solution for the continuous-time complementarity problem. To guarantee the validity of the K.K.T. conditions for some auxiliary continuous-time problems which appear during the theoretical development, we use the linear independence constraint qualification. These constraint qualification are posed in the continuous-time context and appeared in the literature recently. In order to exemplify the developed theory, some simple examples are presented throughout the text.

RÉSUMÉ Les entretiens présentent des dialogues intéressés par les expériences juvéniles, proposant des réflexions sur les actions des jeunes et leur relation avec l’éducation scolaire. Donc, les conversations engagées avec François Dubet, Anne Barrère et Fabien Truong mettent en discussion les épreuves vécues par les individus, afin de permettre des contrastes avec la réalité scolaire brésilienne. C’est la voie empruntée pour considérer les itinéraires construits et les inégalités sociales éprouvées par les jeunes des classes populaires, ainsi que le rapport des élèves à la réussite et à la forme scolaires en systèmes éducatifs massifiés. En même temps, alors, on propose une prise de position réflexive et une problématisation sur les conséquences politiques de la prééminence du jugement scolaire.