bluuebunny/crossref_metadata_2025 huggingface dataset:
Does potassium silicate reduce wheat blast in young and adult wheat plants?
Authors: Bergmann-Martins Mireli , Lorenset Mateus da Silveira , Canabarro Raissa , Liska Gilberto Rodrigues , Pinho Renata Silva Canuto de , Cruz Maria Fernanda Antunes da
Published: February 2025

ABSTRACT Considering the different levels of efficiency reported in the literature for the use of potassium silicate (PS) on wheat blast, this work investigated whether the foliar spray of PS could reduce blast severity in young and adult wheat cultivars and increase wheat yield indexes. At 28 days after emergence, the ‘BR 18’, ‘BRS 208’, and ‘BRS Louro’ plant cultivars were sprayed with the following PS rates (g/L): 0, 5, 10, 20, and 25. Twenty-four hours after PS application, the plants were inoculated with 105 conidia/mL of P. oryzae. Seven days after the inoculations the blast severity in the control plants of the ‘BRS Louro’, ‘BR 18’, and ‘BRS 208’ cultivars were 85%, 60% and 35%, respectively. For the 5g/L (PS) dose, severity was reduced more than 60% in the three cultivars. Adult plants of the ‘BRS 208’ and ‘BRS Louro’ cultivars were sprayed with water (control) or PS (20g/L) at the tillering, booting, and inflorescence stages. The PS applications were not efficient at reducing blast severity in adult plants and did not affect the wheat yield indexes. PS is only efficient at reducing blast severity in young plants.
Physiological potential of pepper seeds hydroprimed and primed with 24-epibrassinolide and subjected to salt stress
Authors: Nobre Júlia Gabriella da Silva Rocha , Araújo Neto João Correia de , Ferreira Vilma Marques , Melo Júnior João Luciano de Andrade , Melo Luan Danilo Ferreira de Andrade , Souto Priscila Cordeiro
Published: February 2025

ABSTRACT The 24-epibrassinolide (24-EpiBL), in association with the physiological conditioning of seeds, is recognized for providing several advantages in seeds, among which the most important one is the tolerance to abiotic stresses. Thus, the objective of this work was to evaluate the vigor of pepper seeds primed with 24-EpiBL and then subjected to salt stress. Three lots of pepper seeds of the cultivar Airetama Biquinho Amarela were used. The research was divided into three steps: the first for initial characterization of seed lots upon germination and vigor tests; the second for defining the water absorption process and drying of primed seeds; and the third for the priming of seeds with water (hydropriming) and 24-EpiBL (10-8 M), as well as priming with 24-EpiBL (10-8 M) of seeds subjected to the salt stress with the following osmotic potentials: 0.0, -0.2, and -0.4 MPa. A mitigation of deleterious effects of salt stress was found in seeds hydro-primed and primed with 24-EpiBL. The use of pepper seeds hydro-primed and primed with 24-EpiBL (10-8 M) is a viable alternative for decreasing injuries, morphological and biochemical changes, and growth and development limitations caused by salt stress.
Nicotinamide and phytohormones as biostimulants in common bean
Authors: Bernardo Vitória Fátima , Lima Sebastião Ferreira de , Santos Gleciane Aparecida Valério dos , Alves Vitória Carolina Dantas , Vendruscolo Eduardo Pradi , Nunes Rita de Cássia Barros
Published: February 2025

ABSTRACT The cultivation of beans (Phaseolus vulgaris L.) is of great importance to the national economy since they are grown in almost all regions of Brazil and the use of biostimulants based on phytohormones and plant vitamins can improve the yield of the crop. This work aimed to evaluate the effects of the application of the vitamin nicotinamide and phytohormones as biostimulants on bean plants. The experimental design was carried out in randomized blocks in a 2 x 5 factorial scheme with 4 replicates. The treatments consisted of the application of five doses of nicotinamide (0, 200, 400, 600 and 800 mg L-1) in the presence or absence of phytohormones containing auxin, gibberellin and cytokinin. The growth characteristics, production components and productivity of the bean grains were evaluated. The use of phytohormones and nicotinamide alone or together favored the growth, production components and grain productivity of the bean plant. The range of 366 to 469 mL L-1 nicotinamide achieved the highest values for the growth variables, production components and grain productivity of the bean plant, with 414 mL L-1 being the most suitable to achieve higher grain productivity.
Stratified mass selection, individual selection between and within, and genetic gains in native maize varieties
Authors: Pereira Joaes Alves da Silva , Santos Vanderley Borges dos
Published: February 2025

ABSTRACT Maize is an important cereal that is grown and consumed all over the world. Among the selection methods that contribute to increasing the frequency of favorable alleles in native maize populations, selection between and within and stratified mass selection in half-sibling families has proven efficient. This study aimed to conduct an individual selection between and within and stratified mass selection in ten half-sibling families of native maize and to estimate the variance components, genetic parameters, and selection gains for them. Ten half-brother families of families were evaluated. The experimental design was DBC, with two replications totaling 20 experimental units, evaluating four plants per plot. The spacing used was 0.8 by 0.3 m. The following were evaluated: stalk diameter (SD), ear length (EL), ear diameter (ED), number of rows (NF), number of grains per row (NGR), ear mass (EM), and total grain mass (TGM) were evaluated. Individual analyses were carried out for all the traits evaluated, selected to increase the original means with a selection intensity of 50% between/50% within. Stratified mass selection yielded higher selection gains than selection between and within families. The selection of the character’s ear mass and total grain mass showed the highest estimates of genetic gain, 54.45 and 48.37%, respectively.
When is corruption a threat to democracy? Perception of corruption about politicians and bureaucrats and democratic legitimacy in Latin America
Authors: Almeida Tailon Rodrigues , Casalecchi Gabriel Avila
Published: February 2025

Abstract: The article analyzes the relationship between perceptions of corruption and democratic legitimacy in Latin America based on the multidimensional structure of legitimacy. The paper differentiates the perception of corruption into two independent variables: politicians and bureaucrats. We used a quantitative analysis of the Americas Barometer (AB) survey in its 2018/2019 round of questions. The results of the study indicate that the perception of corruption weakens democratic legitimacy in Latin America not only with respect to more specific levels of political support, but also with respect to diffuse support for the regime in general, compromising the legitimacy and stability of democracy in the region. Our results also suggest that the impact of perceptions of legitimacy differs when the independent variable is politicians or public officials, being more negative for the regime when citizens perceive the political class as corrupt.
Ophthalmologic examination and ocular ultrasound of the south american coati (Nasua nasua)
Authors: Pigatto Anita Marchionatti , Cassanego Guilherme Rech , Rosa Carolina Cauduro da , Gasparotto Jean Carlos , Mangini Luiza Tonietto , Peixoto Gabriella De Nardin , Brandenburg Natália Karianne , Corrêa Luís Felipe Dutra , Krause Alexandre
Published: February 2025

ABSTRACT: To determine species-specific reference values for ophthalmological tests is essential to diagnose ocular conditions. This study measured ophthalmological and ocular ultrasonographic parameters of the eye of captive coatis (Nasua nasua). Data obtained during the routine physical examination were from twelve coatis (24 eyes), two to five years old, five males and seven females, clinically healthy. Blood collection and ophthalmological evaluation using the Schirmer tear test 1 (STT 1), measurement of intraocular pressure (IOP) and central corneal thickness (CCT), ecobiometry (US) and indirect ophthalmoscopy were performed. The results were analyzed and compared using the Student T test (P < 0.05), according to eye (right and left) and sex. For the STT, the mean values (mean ± standard deviation) were 2.29 ± 0.85 mm/min, for IOP of 8.22 ± 1.97 mmHg and for CCT, of 324.29 ± 18.01 µm. Echo biometry measures were: 1.48 ± 0.08 mm for anterior chamber depth (ACD); 4.09 ± 0.09 mm for lens thickness (LT); 3.59 ± 0.18 mm for vitreous chamber depth (VCD), and 9.17 ± 0.18 mm for axial globe length (AGL). Retina showed a holangiotic vascular pattern with a broad tapetum and the presence of the optic disc. Statistical analysis did not show any difference between eyes (left or right) and gender for all parameters. The values obtained for CCT and US are not previously available in the literature, and together with STT, IOP and retinal pattern, can be used as reference for the species.
Marketing margins in the beef supply chain in Rio Grande do Sul: COVID-19 pandemic impacts
Authors: Viana João Garibaldi Almeida , Rodrigues Gerson Alex Rocha , Valle Carine Dalla , Boscardin Mariele , Dörr Andréa Cristina
Published: February 2025

ABSTRACT: This study analyzed the marketing margins of beef in Rio Grande do Sul from 2017 to 2022, focusing on the impact of the pandemic on various segments of the production chain. Using secondary data, we examined producer prices for live cattle and consumer prices for beef. We calculated marketing margins and used graphical analysis, frequency distributions, and linear regression to identify structural changes. Before the pandemic, beef prices in Rio Grande do Sul were on an upward trajectory, which stabilized following the onset of the health crisis. Significant structural changes were observed in consumer prices and marketing margins within the beef supply chain in Rio Grande do Sul, notably a considerable rise post-pandemic.
Characterization of micro resistance spot welding on aluminum electrolytic capacitors
Authors: Lopes Weslen Rosiak , Veit Hugo Marcelo
Published: February 2025

Abstract Resistance spot welding (RSW) processes are applied across a diverse range of manufacturing processes in industry with the objective of permanently joining two metal parts. RSW occurs due to heat generated on focal points by the resistance that an electric current flow (AC or DC) encounters when passing through metallics pieces pressed against each other by electrodes. This study is based on a design of experiments (DOE), focused on the manufacture of aluminum electrolytic capacitors, and seeks to characterize the influence of RSW parameters (electrical current density, weld time and electrodes pressure) on the tensile strength of the weld joint formed between aluminum alloy AW3003 and a low carbon steel sheet coated with copper and tin by electrodeposition. The DOE consists of a sweep on the electrical current between 12kA and 20kA, weld times 8ms and 12ms and pressures 0.3Mpa and 0.4Mpa. The welding interface of the specimens was also analyzed by SEM and EDS, revealing different types of morphologies. The results obtained highlighted the electrical current as the main influence factor on the tensile strength, also enabling the identification of different types of morphology on welding interface. The observed tensile strength results for the studied parameters ranged from 376N to 1095N (average), and an optimized combination of parameters based on a statistical analysis in Minitab software is suggested at 18kA, 12ms and 0.3Mpa.
Performance analysis of an enhanced indirect solar dryer with thermal storage material integration for drying apple slices
Authors: Sadasivan Manirathnam Athppagoundenpudur , Subramanian Sundararaj
Published: February 2025

ABSTRACT This study evaluates the performance of an enhanced indirect solar dryer with integrated thermal storage for drying apple slices efficiently, offering a practical solution for sustainable post-harvest management. The dryer features a single-pass solar collector and a 16.5 kg capacity drying chamber embedded with paraffin wax as a thermal energy storage material to maintain consistent heat during the drying process. This innovative design achieved a thermal efficiency 11 ± 0.2% higher than conventional solar dryers and reduced drying time by 40 ± 2.1%, aligning with the goals of energy-efficient post-harvest practices. Compared to open sun drying and thin-layer drying, the solar dryer with thermal storage (SDTS) preserved nutrients more effectively, with total sugar content reaching 64.85 ± 3.50% and fiber content at 12.50 ± 0.75%, the highest among all methods. Moreover, SDTS-dried apple slices exhibited greater total phenolic content (TPC) and antioxidant activity, underscoring superior product quality. The integration of thermal storage minimized drying inconsistencies, reducing post-harvest losses and ensuring nutrient retention. Statistical models were developed to predict moisture ratios accurately, validated through chi-square and root mean square error analysis. This enhanced dryer demonstrates improved efficiency and reliability, making it a scalable, sustainable solution for small-scale fruit farmers, ultimately addressing critical post-harvest management challenges.
Optimization of tribological parameters of hybrid polymer composites reinforced with kenaf fibers and recycled spent abrasive particles
Authors: Mahalingam Vinoth , Veeramani Anandakrishnan , Shanmugam Sathish , Selvaraj Jayasankari
Published: February 2025

ABSTRACT Abrasive water jet machining produces large quantities of spent abrasive particles, typically discarded due to their heterogeneous composition, comprising both metallic and non-metallic components that vary with the processed material. However, these particles can be repurposed for engineering applications. This study utilized spent abrasive particles as filler materials at 2.5%, 5%, and 7.5% by weight in an epoxy resin matrix to fabricate kenaf fiber-reinforced hybrid polymer composites. The tribological properties of the composites were systematically analyzed to identify optimal conditions for minimizing wear rate and friction. Pin-on-disc wear tests were performed using a standard tribometer at sliding velocities of 1 m/s, 2 m/s, and 3 m/s, under loads of 5 N, 10 N, and 15 N, over a constant sliding distance of 800 m. Results showed a minimum wear rate of 0.0108 mm3/m and a minimum coefficient of friction of 0.0581 for composites with 7.5 wt.% filler at a 5 N load and 1 m/s sliding velocity. Worn samples were examined using scanning electron microscopy to explore the dominant wear mechanism. The inclusion of spent abrasive particles significantly improved tribological performance by enhancing wear resistance and modifying frictional behavior through improved interfacial bonding in the polymer matrix.
Evaluation of the effect of exogenous melatonin on the placenta and inflammatory cytokines in rats submitted to chronic alcohol consumption
Authors: Silva M. V. , Nascimento B. J. , Alves E. R. , Santos A. M. G. , Santos Y. B. , Lapa-Neto C. J. C. , Melo I. M. F. , Teixeira A. A. C. , Teixeira V. W.
Published: February 2025

Abstract Global alcohol consumption by pregnant women is approximately 9.8%. This consumption can hinder the interaction of the placenta with the fetus and increase levels of oxidative stress by altering and deregulating the expression of cytokines, leading to complications such as slow intrauterine development, such as low birth weight, premature babies and even stillbirths. It is known that melatonin is a natural antioxidant that acts mainly on the liver and also on various organs such as the ovary, placenta and the fetus itself. Melatonin can freely cross the placenta and exert effects on the mother and fetus. The present work aimed to analyze the effects of exogenous administration of melatonin during pregnancy on the placenta of rats subjected to chronic alcohol consumption. 30 albino rats were used, divided into 3 groups: Control – 10 pregnant rats that will not receive alcohol; Alcohol – 10 pregnant rats subjected to chronic alcohol consumption; Alcohol + Melatonin - 10 pregnant rats subjected to alcohol consumption associated with melatonin. Alcohol was administered at a dose of 3g/kg by gavage, while melatonin was administered at night at a dose of 0.8mg/kg intraperitoneally. The placentas were weighed and analyzed histopathologically, morphometrically and immunohistochemically. The results showed a significant reduction in placental weight in the alcohol group, disorganization in the labyrinthine zone and reduction of maternal and fetal vessels in the alcohol group. There was strong staining for TNF α and VEGF factors in the alcohol group. And as for PCNA, the control group and the alcohol + melatonin group showed the highest percentages of positive cells. And in relation to apoptosis, there was strong staining in the junctional zone of the placentas of females in the alcohol group. Therefore, it is concluded that melatonin has the potential to protect against the oxidative damage of ethanol in placental cells and can also regulate the generation of inflammatory cytokines.
Genetic variability in soybean with resistance to cyst nematode and powdery mildew: impact of multi-parent crosses on recombination and genetic diversity
Authors: Muniz F. R. S. , Souza J. S. , Moitinho A. C. R. , Torneli I. M. B. , Unêda-Trevisoli S. H. , Pfeiffer T. , Di Mauro A. O.
Published: February 2025

Abstract The objective of this study was to analyze the genetic variability generated from two-way, four-way, and eight-way hybridizations in soybean, derived from parental lines contrasting in resistance to cyst nematode and powdery mildew. We assessed F2 populations using Simple Sequence Repeat (SSR) molecular markers located within the 50 cM region surrounding the Rmd (powdery mildew) and Rhg1 (cyst nematode) resistance genes. All markers were nonsignificant by chi-square test (P > 0.05), indicating that observed values align with the expected genotypic inheritance ratio in F2 populations (1:2:1). Lower polymorphism observed among parents explained the reduced recombination frequency in these populations. A higher mean crossover rate was observed in G4 (4.00) within linkage group G, and J8 (2.91) within linkage group J. In terms of the number of generations needed to form each population, crossover rates of 2.02 and 0.97 were found for G2 and J8, respectively. Recombination between alleles was present in some populations. Crosses involving a greater number of parents exhibited a higher frequency of crossovers, which positively impacts genetic variability. Therefore, the inclusion of more than two parents in hybridizations is recommended to enhance crossover frequency and genetic diversity. These findings provide valuable insights for breeding programs aiming to improve resistance in soybean, indicating that multi-parental crosses can be a strategic approach to increase genetic diversity and resilience against pathogens.
Ethnicity-specific associations between the promoter region G-308A polymorphism (rs1800629) of the TNF-α gene and the development of end-stage renal disease: An evidence-based meta-analysis and trial sequential analysis
Authors: Anumas Suthiya , Tansawet Amarit , Numthavaj Pawin , Pattharanitima Pattharawin , Pabalan Noel , Jarjanazi Hamdi , Mongkolrob Rungrawee , Tasanarong Adis , Tharabenjasin Phuntila
Published: February 2025

Abstract Tumor necrosis factor-alpha (TNF-α), is partly attributed to pathogenesis of end-stage renal disease (ESRD). Inconsistency of reported associations between TNF-α G-308A polymorphism (rs1800629) and ESRD prompted a meta-analysis to obtain more precise estimates. Eleven case-control studies from 11 articles were included. Pooled odds ratios (OR) and 95% confidence intervals (95% CIs) were estimated to evaluate the association. Subgroup analysis was based on ethnicity (Caucasian and Asian). Multiple comparisons were Bonferroni-corrected. Trial sequential analysis (TSA) was implemented to ascertain the reliability of results. Sensitivity analyses and publication bias tests were performed on significant results. There were no significant association (pa >0.05) in the overall and ethnic subgroup. Indians, three significant pool ORs (pa < 0.01-0.03) showed increased susceptibility to ESRD in homozygous (OR, 6.57; 95% CI, 1.45 to 29.75; pa = 0.01), recessive (OR, 6.75; 95% CI, 1.44 to 31.56; pa = 0.02), and codominant (OR, 2.06; 95% CI, 1.08 to 3.94; pa = 0.03) models. TSA indicated the robustness of such association in the Indian population. The main outcomes were robust without evidence of publication bias. This study showed associations between TNF-α G-308A and ESRD are confined to Indians, which are susceptible to ESRD up to approximately 7 times.
The relationship between impulsivity and IT sales performance
Authors: Araujo Danilo Alves , Becker João Luiz
Published: February 2025

ABSTRACT Purpose: This study investigates the relationship between impulsivity and the performance of information technology (IT) sales professionals. Originality/value: Sales performance has been a relevant topic of interest. Although many studies can be found on the subject, few specifically address the correlation between the personality of sales professionals and IT sales performance. Previous research indicates a link between individual personality and work performance, particularly regarding extroversion, agreeableness, conscientiousness, and openness. Design/methodology/approach: We surveyed 201 IT sales professionals to gather data on their personality traits and sales performance. The analysis examines the relationships between latent variables and their indicators using the PSL-SEM method. Findings: The results demonstrated that impulsivity significantly impacts IT sales performance. The study also found evidence of the predictability of the performance of IT sales professionals by analyzing their personality traits. Therefore, firms will benefit from considering impulsivity in their hiring processes of sales professionals. Likewise, the training of these professionals can also benefit from this knowledge, adjusting the individuals’ characteristics and consequently enhancing sales performance.
Peri-intraventricular hemorrhage in premature newborns: associated with immediate umbilical cord clamping, vaginal delivery and surfactant use
Authors: Sousa Danielle Albuquerque , Ferreira Pedro Lucas de Morais , Camargo Juliana Dantas de Araújo Santos , Silveira Sarah de Lima Alloufa da , Barreto Anna Christina do Nascimento Granjeiro
Published: February 2025

Abstract Objectives: to determine the incidence of peri-intraventricular hemorrhage (PIVH) and the risk factors in newborns weighing <1,500 g and/or gestational age <33 weeks. Methods: a prospective cohort type study on premature newborns admitted to the type II neonatal intensive care unit at the Sistema Único de Saúde (SUS) (Public Health System) from January/2019 to December/2022. The dependent variable was PIVH, with determination of its incidence and associated risk factors. The project was approved by the Research Ethics Committee. Results: a total of 503 neonates participated and the incidence of PIVH was 32.4%. The risk factors were: immediate clamping of the umbilical cord (p=0.017; RR= 1.089; 95%CI=1.015-1.167), vaginal delivery (p=0.001, RR= 1.110; 95%CI= 1.041-1.183) and surfactant use (p<0.001; RR= 1.163; 95%CI= 1.092-1.239). Conclusion: the incidence of PIVH was high and was associated with immediate clamping of the umbilical cord, vaginal delivery and surfactant use, risk factors that can be modified by good perinatal care practices.
Influence of Heat Treated Manihot Esculenta Biosilica on Friction Stir Welded AA 6065-Al2O3 Metal Matrix Composite and Microstructural, Mechanical, and Fatigue Analysis
Authors: Natarajan Gobu , Krishnan Giridharan , Seeniappan Kaliappan , Lakshmaiya Natrayan
Published: February 2025

The present study investigates friction stir welded AA6065-10% Al2O3MMC by incorporating varying percentages of heat treated biosilica. The biosilica is first extracted from waste cassava peel, and it is heated under 1500°C, to get properly arranged crystalline structured biosilica particle. During friction stir welding process, the biosilica particle is dispersed around the welded zone, which in turn impacts load carrying capacity of the material. The study revealed that 3 vol.% of biosilica infused FSW composite ‘C’ shows maximum tensile strength of 276 MPa, yield strength of 238 MPa, impact energy of 20.8 J, elongation of 5.2%, fatigue strength of 176 MPa. Further, the 5 vol.% of biosilica infused FSW composite ‘D’ shows hardness strength of 121 Hv. Additionally, it has been discovered under microstructural analysis that the inclusion of fine-grained heat-treated biosilica exhibits the greatest dispersion of biosilica within the nugget zone, heat affected zone, and thermo mechanically affected zone, which affects the composite's overall strength characteristics. Thus, because of their less dense, better thermo mechanical properties, it could be influenced in areas where joint application, load bearing are needed such as aerospace, heavy industrial, infrastructural, transport and military sector.
Consumo de ultraprocessados e fatores associados entre pessoas idosas brasileiras: dados da Pesquisa Nacional de Saúde de 2019
Authors: Riva Isabela de Oliveira Da , Rodrigues Paulo Rogério Melo , Moreira Caroline Camila , Luz Verônica Gronau , Muraro Ana Paula , Moreira Naiara Ferraz
Published: February 2025

Resumo Objetivo Avaliar o consumo de alimentos ultraprocessados (AUP) e sua associação com fatores sociodemográficos, de estilo de vida e condições de saúde em pessoas idosas brasileiras. Métodos Estudo transversal com dados de 22.728 pessoas idosas participantes da Pesquisa Nacional de Saúde de 2019. Foi estimado um escore de consumo de AUP, considerando o consumo de dez alimentos no dia anterior, sendo considerado elevado quando ≥5 AUP. O consumo foi avaliado segundo variáveis sociodemográficas (sexo, idade, cor/raça, escolaridade, região e área geográfica, viver com companheiro), de estilo de vida (prática de atividade física, tempo de televisão e tela, uso tabaco e bebida alcoólica), doenças crônicas autorreferidas (diabetes, hipertensão e depressão) e estado nutricional. A associação foi avaliada por modelos de regressão logística brutos e ajustados considerando a complexidade da amostra e os pesos amostrais. Resultados Observou-se que 7,1% das pessoas idosas apresentaram consumo elevado de AUP. Após ajustes, ter nível de escolaridade maior ou igual ao ensino fundamental completo, viver nas regiões Sul, Sudeste e Centro-oeste, em áreas urbanas e passar tempo ≥3 horas/dia assistindo televisão aumentam as chances de consumo elevado de AUP, enquanto ter diabetes foi inversamente associado ao consumo de ≥5 AUP. Conclusão O consumo elevado de AUP entre pessoas idosas foi associado a maiores níveis de escolaridade, viver em regiões consideradas mais desenvolvidas e em centros urbanos, passar muitas horas em frente a televisão e à ausência de diagnóstico de diabetes. Os achados inéditos deste estudo de representatividade nacional contribuem para a vigilância alimentar da pessoa idosa brasileira.
Every Climate Struggle is a Political Struggle: New Trends in Climate Justice,
Authors: Petroni Lucas
Published: February 2025

This article explores and evaluates recent conceptual and theoretical developments in the literature on climate justice. Initially shaped by the first generation of IPCC reports and rooted in applied ethics, early climate justice debates framed the climate crisis mainly as a mitigation issue, exacerbated by global and intergenerational collective action dilemmas, requiring ethical principles for resolution. However, with increasingly dire climate forecasts and the policy inertia of the past three decades, climate justice theories have shifted toward a political economy-centered approach. This shift reframes the issue from simply setting just emissions standards to addressing questions of productive justice within a historically situated global energy regime. The article concludes by addressing two critical challenges for production-focused climate justice theories: how to implement radical political action and how to reconceptualize our normative relationship with future generations.
Programa Mais Médicos: reflexões sobre a seleção de municípios para novas escolas privadas
Authors: Moura Anna Tereza Miranda Soares de , Costa Maria Tereza Fonseca da , Cavalcante Neila Cabral de Souza
Published: February 2025

RESUMO Introdução: As tentativas de organização do provisionamento profissional para saúde antecedem a criação do SUS, e os desafios são ainda maiores quanto à distribuição desigual de médicos nas diferentes regiões brasileiras, com especial dificuldade para sua adequação à atenção primária à saúde (APS). O Programa Mais Médicos (PMM) fortaleceu, a partir de 2013, a discussão sobre a formação de egressos com perfil generalista, com forte inserção nesse nível de atenção. Foi orientada a revisão das Diretrizes Curriculares Nacionais (DCN) para cursos de Medicina, de modo a reforçar a atuação no contexto local, fortalecer o ensino nas unidades básicas de saúde (UBS) e estabelecer a formalização de convênios com a gestão dos municípios selecionados, com vistas ao alcance de melhores resultados. Objetivo: Este estudo teve como objetivo analisar o processo de seleção de municípios para a implantação de novos cursos privados de Medicina do Brasil a partir do primeiro edital do PMM. Método: Realizou-se um estudo qualitativo com análise documental de informações das diferentes etapas do PMM, disponíveis em registros e sites oficiais relacionados à seleção de municípios no período de 2013 a 2014. Resultado: O período estudado envolveu a publicação da primeira portaria normativa até o resultado final dos recursos, após 15 meses do início do certame. Foram selecionados 21 municípios com características diversas dos indicadores dispostos, a maioria localizada no estado de São Paulo. Conclusão: A proposta do PMM se alicerça na fixação do médico no interior e na potência da integração entre os sistemas de ensino e saúde locais. Ao contemplar especialmente municípios da Região Sudeste, que já possuía número expressivo de cursos, fica o questionamento quanto à oportunidade de real modificação no cenário de provisionamento de médicos no interior, em especial aqueles lotados na APS.
Challenges faced in caring for deaf patients: a study with medical professors
Authors: Santos Daniel Lucas de Oliveira , Costa Kristen Tolomelli , Cirilo Pauliane Romano , Cardoso Ana Maria de Jesus
Published: February 2025

ABSTRACT Introduction: Deafness is characterized by a decreased ability to perceive sounds and the Brazilian Sign Language (Libras, Língua Brasileira de Sinais) is legally recognized as a form of communication for deaf individuals. Furthermore, it is established that health care for deaf people must be conducted or mediated by professionals trained in the use of Libras. However, the lack of preparation of health professionals to communicate in ways that go beyond orality is a widespread reality in the Brazilian health system. Objective: To identify the challenges faced by teachers of a medical course when caring for deaf people. Method: This is an observational, cross-sectional research, carried out using an online questionnaire, whose target audience comprised health professionals who teach in the medical course at a private institution in Belo Horizonte-MG. The instrument used was developed by the researchers, based on the "Attitudes to Deafness Scale". A pre-test was carried out, where the internal consistency, evaluated by Cronbach's Alpha coefficient, was defined as acceptable (0.76). After collection, data was tabulated in Microsoft Excel and analyzed using the R software. Result: The study included 89 participants, of which 78% declared that they did not have any knowledge of Libras, 88% stated that they did not feel prepared to assist deaf people and 91% never completed any training to provide these services. The main challenges identified were the lack of knowledge about the resources offered by the Brazilian Public Health System for deaf patients and the inability to provide adequate assistance. The results also suggest that participants with training to assist deaf people perceive the challenges as smaller. Furthermore, participants with no prior experience with deaf patients reported greater difficulty in guiding students to care for this population. Conclusion: The results highlight numerous challenges faced by participants when caring for deaf people. The analysis of the results reinforce the structural flaws in the inclusion of people with disabilities during professional education and in health services in general.
No Meio da Tempestade: Percepções de Ribeirinhos do Amazonas sobre a Covid-19
Authors: Zahn Sara Neves Lima , Caranti Danielle Arisa , Juzwiak Claudia Ridel , Padovani Ricardo da Costa
Published: February 2025

Resumo: Com o objetivo de compreender as percepções de ribeirinhos do Amazonas sobre a covid-19, foram entrevistados 12 adultos infectados durante a primeira onda da pandemia. Trata-se de um estudo descritivo qualitativo de amostragem intencional com base no critério de saturação. Para a coleta de dados foram utilizados: questionário de perfil sociodemográfico e de saúde de populações ribeirinhas durante a pandemia, entrevista semiestruturada e a observação participante registrada em diário de campo. Na análise de conteúdo foram identificadas três categorias: “compreensões sobre a covid-19”, que diz respeito às percepções iniciais sobre o vírus, suas formas de transmissão e medidas de prevenção; “‘aconteceu em mim assim’”, na qual se evidenciaram os efeitos percebidos no corpo e na saúde emocional; e “efeitos da pandemia nos modos de vida ribeirinhos”, em que foram apontadas as transformações causadas pela pandemia sobre as práticas alimentares, atividades de subsistência e educação. As desigualdades presentes no contexto ribeirinho foram acentuadas com a chegada da pandemia. As compreensões a respeito do vírus estavam atreladas aos meios de comunicação e a conceitos culturais familiares da região amazônica, sendo a principal barreira a ausência de conectividade nas comunidades. No âmbito emocional, o medo foi a emoção mais referida pelos participantes e a política de sepultamento foi relacionada à dificuldade em vivenciar o luto. O lockdown foi associado à diminuição da renda, redução da compra de alimentos e defasagem na aprendizagem escolar. A compreensão das singularidades socioculturais e percepções desses povos possibilita a reflexão sobre suas reais necessidades e capacidades.
Anti-mullerian hormone (AMH) in pregnant buffaloes: maternal and fetal plasma concentrations and immunolocalization in the fetal gonads
Authors: Costa Nathalia Nogueira da , Ferreira Maria Auxiliadora Pantoja , Ramos Priscilla do Carmo Azevedo , Santos Alessandra Ximenes , Cordeiro Marcela da Silva , Santana Priscila di Paula Bessa , Brito Vanessa Cunha , Silva Thiago Velasco Guimarães , Homobono Bruno Porpino , Souza Eduardo Baia de , King William Allan , Miranda Moyses Santos , Santos Simone Socorro Damasceno
Published: February 2025

Abstract Anti-Müllerian Hormone (AMH), a member of the TGF-β superfamily, plays a critical role in mammalian fertility. This study aimed to investigate AMH concentrations in pregnant buffalo cows and their fetuses, and to characterize the cellular distribution and immunolocalization of AMH within fetal gonads. Gonads were collected from 12 male and 14 female buffalo fetuses, fixed in 10% buffered formalin, and processed for routine histological analysis and immunohistochemical localization of AMH. Blood samples were collected from 26 pregnant buffalo cows and their corresponding fetuses into EDTA-coated tubes. AMH levels in both maternal and fetal blood were quantified using a commercially available bovine AMH ELISA kit. Significant (p < 0.05) inter-individual variations in maternal and fetal AMH concentrations were observed. In males, fetal AMH concentrations increased significantly with gestational age, with levels substantially higher compared to females at all gestational ages (52-1222 times higher). Immunohistochemistry revealed intense AMH immunoreactivity in the cytoplasm of pre-Sertoli cells in male fetuses. In females, no significant correlation was found between fetal AMH concentrations and follicular populations, although intense AMH immunostaining was observed in the cytoplasm of oocytes within primordial follicles. These findings suggest that fetal AMH concentrations in buffaloes are influenced by gestational age and sex, and that fetal AMH likely does not readily cross the placental barrier. Further investigations are warranted to elucidate the intricate role of AMH in gonadal development and function in buffaloes.
Secondary hyperparathyroidism due to chronic kidney disease and access to clinical treatment and parathyroidectomy in Brazil: a nationwide survey
Authors: Pelepenko Lauter Eston , Louça Marcelo Giacomini , Fausto Tarcísio , Bucharles Sergio Gardano Elias , Custódio Melani Ribeiro , Lucca Junior Leandro , Barreto Fellype de Carvalho , Carvalho Aluízio Barbosa , Jorgetti Vanda , Moura Neto José Andrade , Oliveira Rodrigo Bueno de
Published: February 2025

Abstract Introduction: Chronic kidney disease (CKD) may lead to secondary hyperparathyroidism (SHP) and its treatment is based on the control of hyperphosphatemia, hypocalcemia, and serum parathormone hormone levels (PTH) levels. Despite the advances in SHP treatment, therapeutic failure is frequent and CKD patients on dialysis require parathyroidectomy (PTx). Aim: To update the 2011 survey, estimate the current prevalence of SHP in Brazilian dialysis centers, verify access to drugs, and identify obstacles to performing PTx. Methods: A questionnaire was sent to active dialysis facilities. The results were compiled and statistically compared (p < 0.05). Results: A total of 114 facilities successfully responded to the questionnaire, most of them in the Southeast region. Approximately 9% of the individuals (23,535) had serum PTH levels measurements above 1,000 pg/mL (10.7% were reported in the 2011 survey). A considerable number of the reported difficulties indicated limited availability of pivotal medications for SHP management and the associated complications. Of note, only 2.7% of the individuals were submitted to PTx. For those with PTx indication, the waiting time for the procedure was over two years in 28% of the cases. The main barriers to performing PTx were reported to be the long waiting time for PTx, the shortage of head and neck surgeons, and the lack of ward beds for hospital admissions. Conclusion: Some aspects have improved since 2011. However, SHP remains highly prevalent in Brazil, and a significant number of individuals do not have access to PTx or experience long waiting times for this surgical procedure while facing substantial difficulties in obtaining clinical treatment.
Nursing informatics competences in hospitals with the highest level of technological development
Authors: Dias Eliene Gomes Harms , Fabrizzio Greici Capellari , Marques Jefferson Luiz Brum , Araujo Meiriele Tavares , Barra Daniela Couto Carvalho , Lanzoni Gabriela Marcellino de Melo
Published: February 2025

Abstract Objective to analyze the use of nursing competencies in information technology among nurse managers and management support staff in hospitals with the highest level of technological development in Brazil. Method single case study with a quantitative and qualitative carried out sequentially in three hospitals with level seven digital certification. Data was collected from December 2020 to June 2021 using a Likert questionnaire and semi-structured interviews with 21 nurses. The quantitative stage analyzed percentages and the qualitative stage content analysis. Results the quantitative competencies that stood out the most were: include nursing processes and administrative functions of the nursing team in Information System requirements; specify system requirements based on the organization’s needs; Assess information systems in the workplace; and collaborate with the multidisciplinary team to assess the Information System. Qualitatively, three categories emerged: nurses’ contribution to health informatics; challenges and facilities; strategies for developing and enhancing competencies. Conclusion and implications for practice nursing competencies in information technology are used but need to be adjusted to the Brazilian hospital context, considering technological advances and the need to adapt to the reality of each hospital.
Reinventar o silêncio: a introdução de fundos sonoros no teatro francês nas últimas três décadas do século XX
Authors: Fargier Noémie
Published: February 2025

RESUMO Reinventar o silêncio: a introdução de fundos sonoros no teatro francês nas últimas três décadas do século XX – De acordo com uma abordagem teórica e histórica, este artigo se interessa pela reinvenção do silêncio na cena teatral francesa nas três últimas décadas do século XX, por meio da criação do que foi nomeado “silêncio habitado”, “cenários sonoros”, “fundos sonoros” ou “ambientes sonoros”. Com base nos depoimentos dos criadores sonoros André Serré e François Leymarie, colaboradores de Patrice Chéreau e Joël Pommerat respectivamente, procura-se analisar as questões dramatúrgicas e estéticas atribuídas a estes fundos sonoros. O artigo estabelece relações entre as diferentes práticas e questiona o status paradoxal desses sons de pano fundo: por mais discretos que eles sejam, eles têm a função essencial de substituir uma abstração – o silêncio do palco – e criar um contorno acústico escolhido para a escuta do espetáculo.
Réinventer le Silence : sur l’introduction des fonds sonores dans le théâtre français du dernier tiers du XXe siècle
Authors: Fargier Noémie
Published: February 2025

RÉSUMÉ Réinventer le Silence : sur l’introduction des fonds sonores dans le théâtre français du dernier tiers du XXe siècle – Selon une approche à la fois théorique et historique, cet article s’intéresse à la réinvention du silence sur les scènes théâtrales françaises au dernier tiers du XXe siècle, par la création de ce qui a été nommé diversement « silence habité », « décors », « fonds » ou « ambiances sonores ». L’article cherche, en s’appuyant sur les témoignages des créateurs sonores André Serré et François Leymarie, respectivement collaborateurs de Patrice Chéreau et Joël Pommerat, à analyser les enjeux dramaturgiques et esthétiques qui ont été attribués aux fonds sonores. Il établit des liens entre les différentes pratiques et interroge le statut paradoxal de ces sons d’arrière-plan : aussi discrets soient-ils, ils occupent, pour ceux qui les suscitent, la fonction essentielle de se substituer à une abstraction – le silence du plateau – et de créer un cadre acoustique choisi pour l’écoute du spectacle.
Rádio, cena e documentário sonoro de pesquisa: explorações sonoras da pintura de Mark Rothko
Authors: Leroy Séverine
Published: February 2025

RESUMO Rádio, cena e documentário sonoro de pesquisa: explorações sonoras da pintura de Mark Rothko – As cenas do som propostas neste artigo visam desdobrar a noção abordando três formas sonoras interligadas entre elas pela experiência estética que suscita a pintura de Mark Rothko. Trata-se de observar como o documentário sonoro de criação Rothko, produzido por Claire ingrid Cottanceau e Olivier Mellano para a emissora de rádio France Culture, deu impulso à forma cênica Rothko Untitled #2, concebida pelos mesmos autores, e como esse processo de criação desencadeou a produção de um documentário sonoro de pesquisa realizado pela autora deste artigo.
A peça radiofônica alemã e os esforços de João das Neves para a difusão do gênero no Brasil
Authors: Carbone Roberta
Published: February 2025

RESUMO A peça radiofônica alemã e os esforços de João das Neves para a difusão do gênero no Brasil – O presente artigo trata da pesquisa e dos esforços para a difusão da peça radiofônica (hörspiel) no Brasil, empreendidos pelo dramaturgo e diretor João das Neves durante a década de 1970. Para tanto, inicia-se com um panorama histórico, a fim de apresentar e contextualizar o gênero onde ele adquiriu força de expressão: na Alemanha. Dentro dessa exposição, são também discutidos seus aspectos técnicos e dramatúrgicos. Na sequência, abordam-se as ações encampadas por João das Neves no sentido da divulgação da peça radiofônica, bem como do incentivo para a sua produção no país.
Image Experience and Sound Density: effects of presence in the staging of Auto da Catingueira
Authors: Pessôa Ana Cristina Moreira
Published: February 2025

ABSTRACT I mage Experience and Sound Density: effects of presence in the staging of Auto da Catingueira — This article proposes to problematize notions of presence and body from the sound dimension in a performance of the opera Auto da Catingueira, by Elomar Figueira Mello. The study uses a bibliographical, critical and theoretical review, and discusses parts of the recording of the spectacle in close dialogue with music theory and concepts brought from oral poetics. Thus, an analysis of the elements of the performance of actors in the scenic phenomenon is presented in relation to concepts of orality, body and voice, bringing together aspects of performativity and staging based on Brazilian culture and popular actions.
From one audible past to another, the same listening protocol?
Authors: Mervant-Roux Marie-Madeleine
Published: February 2025

ABSTRACT From one audible past to another, the same listening protocol?1 – To initiate scientific dialogue between the members of the project L'écoute du théâtre [ECHO] (UMR THALIM) and the team Arquivos Sonoros de Teatro (University of São Paulo and FAPESP-São Paulo Research Foundation), this article addresses a delicate question that the Franco-Brazilian partnership can illuminate: to what extent can the concepts and methods of Sound Studies and French work on sound facilitate understanding of other cultures, while enriching understanding of one's own? Taking into consideration Sterne’s own reflections in his book, The Audible Past, I shall call on our extensive experience to propose the beginning of a response and a work program.
Knowledge, perception, and satisfaction of postpartum women about newborn hearing screening in two private Brazilian maternity hospitals
Authors: Hanna Khalil Fouad , Cremonesi Aline Tocchini Pascoinelli , Torloni Maria Regina , Ferreira Giovanna Dalo
Published: February 2025

ABSTRACT Purpose To assess the knowledge, perception, and satisfaction of postpartum women about newborn hearing screening and investigate factors associated with lack of knowledge about the test. Methods Cross-sectional analytical study conducted in two private Brazilian maternity hospitals. Participants were postpartum women with newborn infants eligible for hearing screening. After the hearing test, they answered an anonymous written questionnaire to assess their knowledge about, perception of, and satisfaction with the test. The characteristics of participants with and without knowledge about the test were compared using the Chi-square test. Variables with P <0.20 were included in the logistic regression. Results The study included 470 postpartum women (74.1% had a university degree). Nearly 42% (n=195) had no prior knowledge about the test. Among those with prior knowledge, the main sources of information were having a previous child who had undergone the test (50.5%), and family/friends (26.2%). Primiparity (aOR 5.01, 95% CI 3.27-7.69), lack of information about the test during antenatal care (aOR 3.67, 95% CI 2.01-6.70), and no family member with hearing loss (aOR 2.00, 95% CI 1.16-3.47) were variables associated with the lack of knowledge about the test. Almost all participants (98.7%) perceived the test as very important, and 94.3% were totally satisfied with it. Conclusion Even though newborn hearing screening became mandatory in Brazil over a decade ago, a large proportion of postpartum women in two private hospitals had no prior knowledge about the test. However, the vast majority perceive the test as very important and are highly satisfied with it.