bluuebunny/crossref_metadata_2025 huggingface dataset:
Exercise-induced neurogenesis through BDNF-TrkB pathway: implications for neurodegenerative disorders
Authors: Lee Jun Jie , Sitjar Patrick Henry Sebastian , Ang Eng Tat , Goh Jorming
Published: February 2025

Current scientific endeavours in the field of geroscience have begun to reveal how factors such as exercise could modulate the brain aging process. In this review, we ask how exercise could potentially modulate aging, and by extension, the development of Alzheimer’s Disease (AD). Furthermore, we discuss how exercise could mitigate the cascade of debilitating manifestations in AD. Mechanistically, we discuss how biomolecules such as brain-derived neurotrophic factor (BDNF) and its cognate receptor, tropomyosin receptor kinase B (TrkB) could change during the life course and how its signalling pathways could be altered with exercise (acute sessions or chronic training). Tackling these questions could help the scientific and medical community mitigate age-related decline in terms of neurological functions.
Evaluating the potential therapeutic effect of Rosa damascena Mill. essential oil on acetic acid-induced ulcerative colitis in rats
Authors: Özbeyli Dilek , Yiğit Hanoğlu Duygu , Çilingir-Kaya Özlem Tuğçe , Aykac Asli
Published: February 2025

Objectives

In this study, Rosa damascena Mill. essential oil (RDEO) was aimed to evaluate its potential anti-inflammatory and mitochondria-mediated anti-apoptotic effects in vitro and in vivo in acetic acid (AA)-induced ulcerative colitis (UC) rat model.

Methods

In the UC rat model, RDEO (100 μL/kg, p.o.) or sulfasalazine (100 mg/kg/p.o.) was administered to the treatment groups. After decapitation, the UC activity index, colon mass index, and macroscopic and microscopic damages were determined in rat colon tissue. TNF-α levels and MPO activity were measured to evaluate the effect of the inflammation in the colon. Changes in the expression levels ofBcl-2, Bax, casp-3, and casp-9 proteins, which are indicators of mitochondrial-mediated apoptosis were determined by the Western blot method.

Results

Our study results revealed that AA-induction caused a significant increase in colitis activity index (CAI), colon mass index (CMI), and macroscopic and microscopic damages in rat colon tissue. It shows that RDEO treatment has an effective curative effect by reducing AA-induced inflammation (TNF-α and MPO activity), CAI, CMI, pro-apoptotic protein (Bcl-2, Bax, Casp-3, and Casp-9), and morphological damages in rat colon tissue.

Conclusions

All these results suggest that RDEO may have suppressed changes in colon tissue due to its ability to reduce AA-induced inflammation and apoptosis. The results of this study showed that RDEO was beneficial in UC and, like other herbal anti-inflammatory agents, RDEO did not cause gastrointestinal side effects.
Rising up: digital traces and performative Indigenous culture in Australian rock art
Authors: Walshe Keryn , Nowell April
Published: February 2025

Indigenous Australian art relies on motifs and figures to visually symbolise a traditional story, myth and/or ritual, encompassing a narrated performance. In contrast, digital tracings or ‘finger flutings’ impressed into the soft precipitate covering cave surfaces are not typically considered visually symbolic expressions. Using Koonalda Cave in southern Australia as a case study, the authors argue that digital tracings also operate within a performative space, but without their narrator these undulating lines are rendered silent. Here, emphasis is placed on ritual maintenance or the spiritual propagation of a prized food or trade item that would then ‘rise up’.
Cirugía de revisión. Vástago monobloque cementado tras el fracaso de la osteosíntesis en las fracturas extracapsulares de cadera
Authors: Garrido Ferrer José Félix , Sánchez Losilla Cristina , Diranzo García José , Estrems Díaz Vicente , Hernández Ferrando Lorenzo
Published: February 2025

Introducción: Presentamos nuestra experiencia en la cirugía de revisión mediante artroplastia total de cadera con cotilo de doble movilidad y vástago cementado como tratamiento ante el fracaso de la osteosíntesis en fracturas extracapsulares.
Materiales y Métodos: Se evaluó a 38 pacientes operados por el mismo equipo quirúrgico, entre enero de 2015 y diciembre de 2022. Se recogieron datos demográficos y de variables sobre la evolución del paciente hasta el último control clínico después de la cirugía de revisión. La función se evaluó con el Harris Hip Score y las escalas de Barthel y analógica visual. Los resultados radiológicos se analizaron con las clasificaciones de Brooker y de Paprosky. Se registraron las complicaciones asociadas al procedimiento.
Resultados: La edad media de los pacientes era de 81.4 años y el seguimiento medio fue de 28 meses. El tiempo medio desde la osteosíntesis hasta la revisión fue de 6.5 meses. Los defectos femorales más frecuentes fueron de grados I y IIA de Paprosky. El Harris Hip Score fue de 86,2 (rango 65-96); el puntaje en la escala de Barthel, de 91,2 (rango 70-95) y el de la escala analógica visual, de 2,05 (rango 0-5). Las complicaciones fueron: 3 casos de luxación de la prótesis (7,8%) y 2 de infección crónica (5,2%), que necesitaron revisión quirúrgica.
Conclusiones: El tratamiento de rescate ante el fracaso de la osteosíntesis de fracturas extracapsularesmediante artroplastia total de cadera con cotilo de doble movilidad y vástago cementado logra resultados clínicos y funcionales con una alta supervivencia del implante.
Osteomielitis vertebral neonatal. Presentación de un caso y revisión bibliográfica
Authors: Manzone Patricio , Ovejero Mónica Patricia
Published: February 2025

La osteomielitis vertebral neonatal es una enfermedad grave, muy infrecuente, de tratamiento difícil, que excepcionalmente requiere de cirugía a cielo abierto en la etapa aguda. Se presenta el caso de un recién nacido de 25 días que ingresó en la Unidad de Cuidados Intensivos Neonatales por una infección respiratoria con mala evolución, sin respuesta al tratamiento convencional y que desarrolló una espondilodiscitis cervical inferior y torácica alta con empeoramiento progresivo y mal estado general. Requirió una limpieza quirúrgica a cielo abierto y reconstrucción por vía anterior, además de antibioticoterapia secuencial (por vía intravenosa-oral) prolongada. En casos seleccionados, las osteomielitis vertebrales neonatales pueden requerir un tratamiento a cielo abierto para curar la infección aguda. Esto no protege, sin embargo, de la posibilidad de deformidades como secuelas.
Tendencias en la evaluación y el tratamiento de fracturas de la espina tibial: perspectivas de los miembros de la SAOTI y la SEOP
Authors: Masquijo Julio Javier , Ron Marqués Alejandra , Carabajal Mattar Miguel , Ferreyra Andrés
Published: February 2025

Introducción: Las fracturas de la espina tibial son lesiones poco frecuentes en la población pediátrica, lo que ha generado debate sobre los algoritmos diagnósticos y las estrategias terapéuticas más apropiadas. En este estudio, se analizaron las prácticas y preferencias de los cirujanos ortopédicos pediátricos afiliados a la Sociedad Argentina de Ortopedia y Traumatología Infantil (SAOTI) y a la Sociedad Española de Ortopedia Pediátrica (SEOP) en el tratamiento de estas fracturas.
Materiales y Métodos: Se realizó una encuesta transversal en línea, con 21 preguntas, distribuida a los miembros de la SAOTI y la SEOP en abril de 2024. Se recopiló información sobre demografía, experiencia, volumen de casos tratados, evaluación, toma de decisiones y métodos de fijación.
Resultados: Se obtuvieron 112 respuestas completadas (tasa de respuesta del 28%). El 99,1% de los encuestados prefirió radiografías e imágenes avanzadas para la evaluación preoperatoria. La mayoría (58,9%) optó por un enfoque artroscópico y una combinación de métodos de fijación (48,2%). Los cirujanos con más de 10 años de experiencia preferían más el tratamiento quirúrgico de las fracturas tipo II. Aunque casi el 80% indica rehabilitación formal posoperatoria, menos de un tercio emplea pruebas funcionales para decidir el retorno al deporte.
Conclusiones: La encuesta mostró prácticas y preferencias variadas en la evaluación y el tratamiento de las fracturas de la espina tibial. Estos hallazgos destacan que se necesita más investigación y estandarización para optimizar el manejo de estas lesiones poco frecuentes.
Presentación del caso
Authors: Pérez Abdala Juan Ignacio , Scarpaci Tomás , Albergo José Ignacio , Farfalli Germán , Aponte Tinao Luis
Published: February 2025

Una mujer de 21 años consulta por gonalgia izquierda de 2 meses de evolución, relacionada con caminatas de más de 10 km, tras un período previo de sedentarismo. Tiene dolor de inicio insidioso, mecánico. No hay hallazgos relevantes en el examen físico. Las radiografías iniciales revelan un engrosamiento cortical difuso en la metáfisis distal femoral izquierda. La tomografía computarizada muestra una reacción cortical con solución de continuidad oblicua, sin compromiso medular ni de partes blandas. La resonancia magnética confirma un edema medular difuso, engrosamiento cortical y edema submuscular laminar. Ante estos hallazgos, se realiza una biopsia por punción para el análisis histopatológico.
DIEN expert system version 1 to formulate nursing diagnoses
Authors:   Universidad Nacional Pedro Ruiz Gallo. Lambayeque- Perú., Fanning Balarezo María Margarita , Vásquez Pérez María Rosa , Capuñay Uceda Oscar Efrain , Oblitas-Guerrero Susan Míriam , Juárez Elera María Alejandra
Published: February 2025

Introducción: La dificultad para formular diagnósticos enfermeros en estudiantes y profesionales subraya la necesidad de utilizar herramientas basadas en sistemas expertos. Objetivo: Desarrollar un sistema experto para la formulación de diagnósticos enfermeros y evaluar sus atributos. Materiales y Métodos: Estudio tecnológico-descriptivo realizado en dos fases: diseño y construcción del sistema experto y evaluación de sus atributos (usabilidad, funcionalidad, fiabilidad y portabilidad). En la segunda fase participaron 68 personas entre estudiantes y enfermeras. Se aplicaron dos cuestionarios, uno para evaluar la usabilidad (validado por análisis factorial exploratorio, con confiabilidad 0,93 alfa de Cronbach) y el otro para los atributos restantes (validado con V de Aiken: 0,91; con confiabilidad: 0,91 alfa de Cronbach). Los datos fueron procesados en Excel, aplicándose estadística descriptiva. Resultados: Se diseñó un sistema experto, utilizando como base de conocimiento la NANDA Internacional 2021-2023. Su interfaz permite ingresar grupo etario, características y factores, generando etiquetas diagnósticas. La mayoría de usuarios calificó como muy buenos los atributos de usabilidad (79,41%), funcionalidad (82,35%), fiabilidad (77,94%) y portabilidad (86,76%). Discusión: El sistema experto DIEN Versión 1 desarrolla habilidades para identificar características y factores relacionados o de riesgo, familiariza a los usuarios con el lenguaje estandarizado de enfermería y fortalece el pensamiento crítico para formular diagnósticos contextualizados con la persona cuidada. Conclusión: El DIEN Versión 1 facilita el uso del lenguaje estandarizado del diagnóstico enfermero permitiendo evidenciar el trabajo científico y sistematizado en la asistencia. La favorable opinión de sus atributos por la mayoría de los participantes predice su aceptación en el ámbito formativo y asistencial.
Electrocardiographic signs of left bundle branch block and prediction of response to biventricular and conduction system pacing
Authors: Malishevsky L. M. , Lebedev D. S.
Published: February 2025

The paper presents an analysis of Russian and foreign studies on left bundle branch block (LBBB) and the analysis of electrocardiographic (ECG) criteria for selecting patients for cardiac resynchronization therapy. The features of LBBB classification are considered, including true and false forms, as well as differences in conduction block location with a similar ECG performance. Particular attention is paid to the problem of variability of existing ECG criteria and the prognostic significance of individual ECG signs. The importance of developing new criteria for improving diagnostics and increasing the effectiveness of treatment of LBBB patients is emphasized to improve selection for biventricular and conduction system pacing.
Anatomy, histology, and electron microscopy of the cardiac conduction system. Current views and new data: review
Authors: Mitrofanova L. B.
Published: February 2025

The review provides a current view of the anatomy, histology, immunohistochemistry, electron microscopy, and electron immunocytochemistry of the cardiac conduction system (CCS) based on literature data and the author's own research over more than 30 years. The article describes a new specialized x-structure of the CCS, discovered by the author and published in 2014, and another type of cells that are part of the sinus and atrioventricular nodes — telocytes, capable of generating and conducting an electrical impulse. Based on layer-by-layer dissection and serial histological sections performed on more than 400 adult hearts, the topographic anatomy of the atrial muscular framework is given. The article also describes the atrial innervation.
Conserving biogeographical units of endemic amphibians in the megadiverse Atlantic Forest
Authors: BOLOCHIO BRUNA E. , BRASIL-GODINHO MARCELA , NOGUEIRA CRISTIANO DE C. , SAWAYA RICARDO J.
Published: February 2025

Abstract The initial step in many biogeography approaches involves identifying biogeographical units, which serve as fundamental building blocks for understanding biodiversity patterns and guiding conservation efforts. We aimed to analyse the conservation of biogeographical units of an endangered biodiversity hotspot by: (i) detecting clusters of endemic frog species; (ii) testing predictions of vicariance model; (iii) evaluating the conservation of the patterns based on protected areas and habitat loss; and (iv) highlighting priority biogeographical units for conservation. Biogeographical units were identified via Biotic Elements analysis, using range polygons for 381 endemic frogs. We tested two predictions of vicariance model: (i) the occurrence of non-random patterns, forming clusters of co-occurring species (Biotic Elements, BEs); and (ii) the occurrence of closely related species in distinct BEs. We calculated the percentage of forest remnants in each BE and their overlap with protected areas. We highlighted those with high degrees of irreplaceability and/or vulnerability as priority BEs for conservation. We recovered 21 Biotic Elements. Both predictions of the vicariance model were validated. On average, BEs presented 28% of forest remnants, but only 12% of their total areas were protected. Mountain ranges of central Atlantic Forest harbour most of BEs, emphasizing the importance of safeguarding these regions.
Correlation between productive components and grain yield of soybean cultivars sown in the northwest region of Rio Grande do Sul
Authors: Paraginski João Antônio , Moraes Mariana Poll , Souza Rafael Rodrigues de , Mello Anderson de Carvalho , Toebe Marcos
Published: February 2025

ABSTRACT Considering the expressive number of commercial soybean cultivars available for cultivation in Brazil and the constant search for improvements in the production system, the objective was to evaluate the productive components and grain yield and to estimate the correlation between them in soybean cultivars sown in the northwest region of Rio Grande do Sul, during the 2019/20 harvest. Sixteen commercial soybean cultivars were sown under their respective plant density recommendations, in a randomized block design with three replications. At the end of the cultivation cycle, the following variables were evaluated: plant height; height of insertion of the first pod; number of nodes; number of pods with one, two, three and four grains; pods per plant; grains per plant; weight of thousand grains, and; grain yield. The cultivars BMX ZEUS IPRO, NS 5445 IPRO and NS 5700 IPRO presented the highest grain yields, mainly due to the high relationship between the number of pods and grains per plant and the weight of a thousand grains. The indirect selection of more productive genotypes can be carried out through the variables weight of thousand grains, number of pods, grains and nodes per plant, given the significant positive correlation between them.
DEMOCRACIA, REPRESENTAÇÃO POLÍTICA E POPULISMO NA ERA DAS TECNOLOGIAS DIGITAIS
Authors: Kritsch Raquel , Silva André Luiz da , Teixeira Raniery Parra
Published: February 2025

Resumo: O triunfo da tecnologia da informação é, sem sombra de dúvida, uma das transformações a pôr em xeque os arranjos democráticos, ameaçados hoje, entre outras coisas, pela violência coletiva virtual propiciada por máquinas algorítmicas especializadas em cálculos utilitários. Este artigo pretende sustentar, a partir do debate político corrente, como esse fenômeno concorre para a formação de circuitos de comunicação isolados, que impedem a política deliberativa de funcionar adequadamente, contribuindo, ainda, para a intensidade e simultaneidade da ocorrência do populismo nas democracias constitucionais contemporâneas, operando como um meio de enfraquecimento da representação tradicional e/ou de fortalecimento da representação direta. Tomando respectivamente a teoria reconstrutiva da democracia de Jürgen Habermas e a teoria construtivista da representação de Nadia Urbinati, o objetivo deste artigo é esclarecer duas dimensões em que as novas tecnologias digitais parecem atuar: Habermas analisa seus impactos para a esfera pública democrática; Urbinati enfatiza os problemas para a realização do momento da vontade política e seus desdobramentos para a institucionalidade dos Estados constitucionais. Por fim, apontamos como a soberania popular aparece implicada, em ambos os casos, pela ascensão das novas tecnologias digitais.
Effect modifiers of the temperature-mortality association for general and older adults population of Brazil’s metropolitan areas
Authors: Aschidamini Cristiane , Leon Antônio Carlos Monteiro Ponce de
Published: February 2025

Ambient temperature effect on mortality varies between places and populations, suggesting the existence of effect modifiers for this association. This study analyzes the influence of geographic, urban, and socioeconomic factors on the ambient temperature effect on non-accidental mortality in the general and older adults population of Brazilian metropolitan areas, and on that associated with circulatory, respiratory, and other mortality in older adults. Effects of this association were estimated for each group in 42 locations using a generalized additive model combined with the nonlinear distributed lag model. A meta-analysis was then performed to estimate the effects at the national and regional levels. Meta-regression determined the influence of effect modifiers. Estimated relative risks of the temperature-mortality association varied between locations in the Brazilian territory. Heat effects on non-accidental mortality at the national level were 1.09 (95%CI: 1.04-1.15) and 1.13 (95%CI: 1.07-1.20) for the General and Older Adult groups, respectively. Cold effects were 1.26 (95%CI: 1.21-1.32) and 1.30 (95%CI: 1.24-1.36) for the General and Older Adult groups, respectively. We observed a greater effect of cold than heat in both groups. For all causes of death, effects of heat and cold were greater in the Southeast and South Brazil. Amplitude of the mean temperature was the factor that best explained the heterogeneity between locations, followed by latitude, income and schooling. Hence, implementing adaptive measures to reduce the ambient temperature effects on mortality depends on the profile of each location.
Feminicídios em Minas Gerais, Brasil: da caracterização dos eventos à análise espaço-temporal
Authors: Bahia Camila Alves , Pinto Isabella Vitral , Trindade Carla Machado da , Silva Camila Mattarelli de Abreu e , Habkouk Patricia , Simões Taynãna César , Câmara Daniel Cardoso Portela , Bevilacqua Paula Dias
Published: February 2025

Os objetivos deste estudo foram caracterizar os feminicídios ocorridos em Minas Gerais, Brasil, e comparar a tendência das taxas de feminicídio e homicídio de mulheres nas 89 microrregiões de saúde do estado. Foi conduzido um estudo transversal do tipo ecológico utilizando dados de feminicídios consumados ocorridos entre 2016-2020, consolidados pelo Ministério Público de Minas Gerais. Foram calculadas as taxas de feminicídio e de homicídio de mulheres por 100 mil pessoas do sexo feminino, segundo as microrregiões de saúde. Para o cálculo da última, utilizou-se os dados públicos do Sistema de Informações sobre Mortalidade. Uma análise foi feita acerca de microrregiões com altas taxas de feminicídio correlacionadas a microrregiões vizinhas e de altas e baixas taxas de homicídio de mulheres, através do Índice Local de Moran Bivariado. Também se aplicou o modelo de varredura multivariado para múltiplos conjuntos de dados, com vistas a identificar, simultaneamente, clusters de feminicídio e homicídio de mulheres que coincidiram no tempo e no espaço. Foram identificados 698 feminicídios consumados no ínterim, distribuídos em 19 microrregiões de saúde. Em todo o período, as taxas de homicídio de mulheres foram maiores que as taxas de feminicídio. Verificou-se estabilidade do risco de feminicídio e tendência decrescente do risco de homicídios de mulheres entre as microrregiões de saúde de Minas Gerais. Em 11 microrregiões, o número de feminicídios superou o número de homicídios de mulheres. Os resultados evidenciaram fragilidades na definição da causa básica de óbito de pessoas do sexo feminino, afetando a qualidade do registro dos homicídios.
Decisões dos governos estaduais e os impactos na atenção à saúde de pessoas idosas na pandemia de COVID-19 no Nordeste brasileiro
Authors: Leite Vyna Maria Cruz , Ramos Jr. Alberto Novaes , Ferreira Anderson Fuentes , Costa Nicolas Gustavo Souza , Araújo Carmem Emmanuely Leitão
Published: February 2025

Durante a pandemia de COVID-19, políticas de atenção à saúde para a população idosa ganharam relevância em todo o mundo. Com número de óbitos atingindo marcadamente essa população, torna-se importante analisar os impactos na atenção à sua saúde. O objetivo do artigo foi analisar a relação entre padrões de morbimortalidade relacionada à COVID-19 em pessoas com 60 anos ou mais de idade e medidas de prevenção e controle implementadas, a saber, distanciamento social e início da vacinação específica contra COVID-19, por estados da Região Nordeste do Brasil entre fevereiro de 2020 e setembro de 2022. Trata-se de estudo descritivo de série temporal fundamentado em dados dos estados da Região Nordeste. Os resultados apontam para elevado padrão de morbimortalidade da população idosa antes a pandemia de COVID-19 e crescimento acentuado após a emergência sanitária em todos os estados. Há certa homogeneidade entre as medidas de enfrentamento à pandemia adotadas pelos estados nordestinos. Houve incremento do número de internações com evolução para óbito em virtude da doença, mesmo após rigorosas medidas de contingência, distanciamento e início da vacinação. Concluiu-se que há uma relevante relação entre medidas sanitárias de distanciamento social e vacinação e redução de morbimortalidade da população idosa nos estados da Região Nordeste. Entretanto, as decisões dos governos estaduais da região não foram suficientes para mitigar o impacto da morbimortalidade entre as pessoas idosas em consequência da pandemia de COVID-19.
High occurrence of viruses in migratory bees: a risk for bee health in southern Brazil
Authors: Frühauf Matheus Iuri , Barcelos Lariane da Silva , Sattler Aroni , Botton Nadálin Yandra , Ribeiro Leonardo Clasen , Hübner Silvia de Oliveira , Lima Marcelo de , Fischer Geferson
Published: February 2025

ABSTRACT: The periodic rental and movement of colonies for pollination purposes currently characterize migratory beekeeping. Even though it is economically advantageous, this practice causes an increase in stress and exposure to various pathogens. This study aied report the multiple viruses identified in migratory bees located in southern Brazil. Bees were collected from 135 colonies of the species Apis mellifera, used in migratory beekeeping in 2021 and 2022 for the pollination and/or honey production of apple, canola, japanese grape, eucalyptus, and sunflower crops. These colonies remain housed at the Agronomic Experimental Station of the Universidade Federal do Rio Grande do Sul. Each sample was subjected to the conventional Reverse Transcriptase Polymerase Chain Reaction technique, using two multiplexes: Multiplex 1 for Deformed Wing Virus (DWV), Black Queen Cell Virus (BQCV) and Israeli Acute Paralysis Virus (IAPV); and Multiplex 2 for Sacbrood Virus (SBV), Chronic Bee Paralysis Virus Bees (CBPV) and Acute Bee Paralysis Virus (ABPV). Positive samples were selected for purification, sequencing, and analysis. Of the 135 colonies analyzed, 12 (8.9%) were positive for ABPV, 124 (91.8%) for BQCV, 85(63.0%) for CBPV, 123 (91.1%) for DWV, 3 (2.2%) for IAPV, and 96 (71.1%) were positive for SBV. Only two samples were considered negative; all positive samples presented at least two different viruses. This study demonstrated the high occurrence of infections and multiple viral infections in migratory bees. Furthermore, this is the first report of IAPV and CBPV in the state of Rio Grande do Sul.
Synthesis and characterisation of copper (II) oxide nanoparticles for application in antimicrobial coatings
Authors: Araújo Stela Braga de , Clerici Naiara Jacinta , Brandelli Adriano , Siqueira Franciele Maboni , Ferreira Carlos Arthur
Published: February 2025

Abstract The addition of nanoparticles to coatings is a widely employed strategy to enhance resin properties without compromising performance. Copper oxides are commonly used as additives in formulations, replacing organometallics, which are prohibited due to their biocidal and antifouling activities. This study focuses on synthesizing copper (II) oxide nanoparticles through co-precipitation for application in antimicrobial coatings. The synthesis process involved co-precipitation using copper sulphate (CuSO4.5H2O) as a precursor and NaOH as an alkaline agent. Characterization of the obtained nanoparticles was performed using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). These analyses confirmed the formation of CuO nanorods with an average size of approximately 73 nm in length and 16 nm in width. Antimicrobial testing was conducted against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus cereus. The results revealed noteworthy antimicrobial activity, particularly against Staphylococcus aureus and Bacillus cereus. Consequently, the findings suggest that copper (II) oxide nanoparticles have the potential to serve as additives, enhancing the biocidal properties of resins as coatings and other applications.
Assessing the mechanical properties and workability of concretes with stone powder as a sustainable alternative material to natural sand
Authors: Almeida Thalles Murilo Santos de , Jesus Wanderson Santos de , Souza Marcelo Tramontin , Azevedo Flávia Araujo , Silva Suânia Fabiele Moitinho da , Souza Ramon Santos , Pessôa José Renato de Castro
Published: February 2025

Abstract The extraction of sand from riverbeds through dredging is a common practice in construction and has given rise to significant environmental repercussions. Sand removal contributes to heightened turbidity and alterations in watercourses, reshaping the original channels due to equipment utilization, and disrupting their flow. In response to these challenges, crushed stone dust emerges as a sustainable alternative material for partially or entirely replacing natural sand in concrete production. This study aimed to evaluate the mechanical properties and workability of concrete with a characteristic compressive strength of 25 MPa, employing total replacement (100% crushed stone dust) and partial replacement (50% crushed stone dust and 50% sand). The materials utilized encompassed crushed stone, natural sand, Portland cement CP II F - 32, crushed stone dust, and a superplasticizer additive. The results indicated no significant difference in compressive strength (P < 0.05), with values of 36.85 MPa and 30.31 MPa for total and partial replacement, respectively, comparable to the reference concrete (33.47 MPa). In terms of tensile strength by split tensile testing, concrete with total and partial replacement achieved 3.09 MPa and 3.23 MPa, respectively, while the reference mix recorded 3.31 MPa. Total replacement posed challenges to the workability of fresh concrete, necessitating a higher dosage of superplasticizer. In conclusion, crushed stone dust demonstrates its capacity to substitute natural sand, either entirely or partially, while upholding mechanical properties comparable to traditional concrete. However, careful consideration of the impact on concrete workability is essential when opting for total replacement of the fine aggregate.
Magnetic modulation in epitaxial EuTiO3 thin film via oxygen vacancies
Authors: Sun Guangyao , Chen Gaoyuan
Published: February 2025

ABSTRACT Oxygen vacancies in magnetic materials are pivotal in tailoring their magnetic properties, offering a versatile pathway to manipulate their performance. This study focuses on the impact of oxygen vacancies on the magnetic properties of EuTiO3 (ETO) thin films, demonstrating how these vacancies can induce ferromagnetism, a property not typically observed in its stoichiometric form. By controlling the background oxygen pressure during fabrication, we obtained ETO thin films with varying concentrations of oxygen vacancies and investigated their magnetic behavior. The results reveal that the manipulation of oxygen vacancies significantly influences the magnetic properties of ETO thin films. Films grown under low oxygen pressure exhibit a peak in the Curie temperature (Tc) around 4.1 K, indicating a transition to a ferromagnetic state. In contrast, films grown under high oxygen pressure show a Tc peak at approximately 2.5 K, suggesting an antiferromagnetic state. The control over oxygen vacancies provides a profound impact on the magnetic landscape of ETO, making it a critical handle in the engineering of magnetic properties for various applications, including multiferroic devices.
Effectiveness of biofertilizer BiomeFert-1 on growth and productivity of Capsicum frutescens L.
Authors: Fatimah  , Hidayat N. A. A. , Salsabila S. , Rahayuningtyas N. D. , Soelistyo A. N. P. , Nurhariyati T. , Nimatuzahroh
Published: February 2025

Abstract This study aims to determine the effect of various biofertilizer dosages and application frequencies on the growth and productivity of Capsicum frutescens L., as well as to evaluate the RAE (Relative Agronomic Effectiveness) of these treatments. The experiment involved three different dosages of BiomeFert-1 (5, 10, and 15 mL/plant) applied at different frequencies, i.e., once (1 week after planting-WAP), twice (1 and 4 WAP), and three times (1, 4, and 8 WAP). Plant growth parameters measured included plant height, number of leaves, and stem diameter, while productivity was assessed based on the number of flowers produced. Growth data were descriptively observed, and productivity was analyzed using the one-way ANOVA. Plants treated with twice the applications of 10 mL biofertilizer resulted in the biggest height growth. The single application of 15 mL biofertilizer produced the most leaves. The largest stem diameter was achieved by plants treated with 15 mL biofertilizer applied three times. Meanwhile, a single application of 10 mL biofertilizer resulted in the best productivity, most flowers, and the highest RAE value (134%).
Ant assemblages (Hymenoptera: Formicidae) and spatial patterns of diversity along Cerrado remnants in Central-West Brazil
Authors: Costa A. N. , Macedo R. M. , Vaz-Silva J. , Alves K. M. , Pacheco R. , Vieira-Neto E. H. M. , Mundim F. M.
Published: February 2025

Abstract Ants are a diverse and ecologically important group of social insects, playing a key role in ecosystem functioning. However, significant gaps remain in our understanding of their distribution across the Brazilian biomes. In this study, we surveyed four sites within a poorly sampled region of the Cerrado, located between Mato Grosso (MT) and Goiás (GO) states in Brazil. Using attractive baits for ants foraging on the ground and in the vegetation, we conducted two rounds of sampling across 20 transects using 40 baits each, totaling 1,600 baits. We recorded 133 ant species from 34 genera and 8 subfamilies. Myrmicinae and Formicinae showed the highest species richness. The five most frequent species were from the genera Camponotus and Pheidole. Notably, 12 species are officially new records for MT and GO, including two rare species for Cerrado’s myrmecofauna. Species richness per site ranged from 59 to 80 species, with the lowest richness occurring where all sampling comprised only savanna habitat, while sites harboring savanna and forest habitats yielded higher species counts, suggesting that vegetation heterogeneity promotes ant diversity. We also recorded more species on the ground (118) than in the vegetation (78). There were marked differences in richness and composition between strata, highlighting the vertical stratification of ant communities. These findings improve our understanding of ant diversity, but additional surveys are needed to better characterize the myrmecofauna across this region of the Cerrado. Furthermore, we encourage biologists to share their consultancy species lists, which could help to fill many knowledge gaps existing about Brazilian biodiversity.
Biological parameters of the American grapevine moth on artificial diets
Authors: Dias Gabriel da Silva , Gervásio Rita de Cássia Rodrigues Gonçalves , Gama Farah de Castro , Teles Eudair Rodrigues , Duarte Fábio Ramon Martins , Costa-Lima Tiago Cardoso da
Published: February 2025

ABSTRACT The São Francisco Submedium Valley in Brazil is the country’s most important table grape exportation region. In 2015, a new pest was reported in the area, the American grapevine moth Lasiothyris luminosa (Razowski & Becker) (Tortricidae), causing significant damage from the bud flowers until the grape berries in the harvesting period. The present work aimed to evaluate artificial diets to guarantee the rearing of L. luminosa in laboratory conditions. Two artificial diets used to rear Anticarsia gemmatalis Hübner and Helicoverpa zea (Boddie) were compared to the species’ natural host (grape berries). It was evaluated the larva, pupal, and larval-pupal period, longevity, fecundity, larval and pupal viability, and sex ratio. L. luminosa completed its cycle in both artificial diets, making it possible to use both to maintain the species in the laboratory. The larval and larval-adult period were shorter for the treatment with A. gemmatalis artificial diet. Also, this diet provided greater pupal viability and higher fecundity. Thus, the A. gemmatalis diet is more indicated to rear L. luminosa in the laboratory than the H. zea diet and grape berries.
Relevant attributes for pick-up points in last-mile logistics
Authors: Baia Bruno de Sousa , da Silva Adriano Maniçoba , Filenga Douglas
Published: February 2025

ABSTRACT Purpose: To identify the relevance of attributes associated with pick-up points where consumers collect their orders from online purchases (e-commerce) in the metropolitan region of São Paulo. Originality/value: A systematic search of the Web of Science and EBSCO databases and an initial literature review revealed that studies on e-commerce consumer preferences regarding attributes related to pick-up points are scarce despite the large volume of studies on last-mile logistics. Thus, this study presented the following research problem: Which attribute associated with pick-up points is considered the most convenient for e-commerce consumers in São Paulo metropolitan region? Design/methodology/approach: A stated preference survey was applied to respondents, with different hypothetical scenarios associated with pick-up points. We developed a data collection instrument and applied it to a sample of 124 respondents, who were asked to make a compensatory analysis of the trade-offs of the attributes present in each alternative. A Conjoint Analysis model was developed from the questionnaire data collection, which generated a utility function, thus enabling to identify the relevance of the attributes associated with pick-up points. Findings: The Security attribute was indicated by respondents as a priority, given the social, political, and economic circumstances of 2022. The accessibility and availability attributes were indicated next in relevance.
Key factors for collaboration between stakeholders in Industry 4.0 manufacturing projects: Amplifying project support
Authors: Paiva Danielle Cruz , Rabechini Jr. Roque
Published: February 2025

ABSTRACT Purpose: The implementation of new technologies in Industry 4.0 integrates companies and enables project stakeholders to combine their knowledge and interests and, consequently amplifying project support. This study aimed to present key factors that facilitate collaboration between stakeholders in Industry 4.0 manufacturing projects. Originality/value: Despite collaboration being frequently mentioned in Industry 4.0 academic research, only a few studies have investigated the crucial factors for collaboration between project stakeholders. Design/methodology/approach: We chose an exploratory and qualitative approach. Based on data from semi-structured interviews and secondary documents, seven Industry 4.0 projects were characterized. A comparative content analysis led to eight factors facilitating collaboration in these smart manufacturing projects. Findings: The key factors for collaboration between stakeholders in manufacturing projects of Industry 4.0 were: the definition of shared goals, joint problem-solving, information exchange, trust relationships, top management support, learning mindset, end-user centrality, and long-term relationships. Conclusions: As a theoretical implication, we showed that Industry 4.0 projects facilitate the implementation of new business models in manufacturing companies. Besides, as a practical implication, we showed leading manufacturers organizing central 4.0 teams as collaboration hubs.
Aleitamento materno exclusivo: a presença de companheiro impacta positivamente na sua duração? estudo de coorte
Authors: Silva Laís Kisly Costa , Viana Maria Augusta Correa Barroso Magno , Oliveira Sara Ferreira de , Lima Rafaela Lira Formiga Cavalcanti de , Vianna Rodrigo Pinheiro de Toledo
Published: February 2025

Resumo Objetivos: identificar se a presença do companheiro favorece maior duração do aleitamento materno exclusivo (AME) de mulheres residentes em João Pessoa assistidas pelo Sistema Único de Saúde. Métodos: coorte com gestantes recrutadas nos serviços de saúde e acompanhadas nos seus domicílios. Coletou-se informações socioeconômicas, demográficas, sobre pré-natal, parto, cuidados no puerpério e alimentação do bebê. Mediana do AME foi calculada por análise de sobrevivência, Kaplan-Meyer, com teste log-rank para comparar grupos. Estimou-se os efeitos independentes dos fatores relacionados com AME com regressão múltipla de Cox. Considerou-se 5% de nível de significância. Resultados: foram acompanhadas 162 mulheres e seus filhos. Mediana do AME foi 120 dias. Até os primeiros quatro meses pós-parto, mulheres com companheiro tiveram maior duração do AME (p=0,002). No modelo final, “ter recebido orientações no pré-natal” (HR= 1,67; IC95%= 1,05 - 2,65), “não ter tido dificuldade para amamentar após a alta hospitalar” (HR: 1,58; IC95%= 1,03 - 2,42) e “não usar chupeta” (HR= 1,64; IC95%= 1,07 - 2,53) favoreceram maior duração do AME. Conclusão: o apoio prolongado do companheiro pode ser uma estratégia viável para a melhora do AME. Ações de promoção e não oferecer chupeta são importantes para uma maior duração do AME e o apoio e manejo no puerpério precisam ser fortalecidos.
Diversification, mid-term rainfall and agricultural production. An analysis of the Brazilian Northeast region
Authors: Paschoalino Pietro André Telatin , Parré José Luiz , Chagas André Luis Squarize
Published: February 2025

Abstract Studies on agricultural diversification in Brazil have gained greater notoriety in recent years, and it is a research topic that requires further exploration to understand how this variable relates to other agricultural indicators, particularly production, especially in regions with highly particular climates, such as the Brazilian Northeast. This study evaluates the relationship between agricultural diversification and medium-term rainfall in the northeastern microregions and agricultural production, considering possible spatial effects. The methodological strategy included estimating panel data and spatial panel models for the micro-regions of the Brazilian Northeast, considering the years 2006 and 2017. The database consisted of information from the Agricultural Census, the Municipal Agricultural Survey, and data from the University of East Anglia. In general, agricultural diversification showed an inverse relationship with agricultural production, and medium-term rainfall proved to be a variable highly related to agricultural production.
Agriculture and livestock sector: GDP, employment, and workplace accidents during the COVID-19 pandemic
Authors: Kunh Peterson Diego , Christ Divair , Coelho Silvia Renata Machado , Brun Sergio Adelar
Published: February 2025

Abstract The agriculture and livestock sector (A&L) plays a strategic role in addressing the current economic crisis, particularly through food production and distribution, contributing to the preservation and recovery of populations affected by the coronavirus pandemic (COVID-19). Regarding employability in Brazil, it was observed that between March and June 2020, the balance between admissions and dismissals was negative. However, during this period, the A&L sector exhibited the least fluctuation. In this context, workplace accidents stand out, showing a reduction of approximately 30% in the analyzed period, except in the A&L sector, which maintained an average of 23,744 accidents per year. Given the economic importance of this sector, it is essential to preserve the physical and mental well-being of workers engaged in it. The study aimed to develop a discussion on occupational accidents in the A&L sector, highlighting its economic relevance and relating it to the accidents and illnesses associated with its activities. A systematic literature review was conducted, focusing on the A&L sector, Gross Domestic Product (GDP), and workplace accidents. Among the 33 economic activities analyzed, a higher incidence was identified in 12 of them, accounting for 80% of the accidents, with certified seed production being particularly noteworthy. This information supports the direction of efforts and the development of policies aimed at reducing accident and illness rates. It is estimated that the costs generated by workplace accidents impact up to 4% of the GDP, which could be avoided through the implementation of preventive measures focused on safety.
Rational use of energy and photovoltaic generation: sustainable strategies for northern Brazil
Authors: Nascimento Neto Manoel , Fernandes Filho Guilherme Eugênio Filippo , Muniz Junior Jorge , Rocha Aglaé Baptista Torres da , Oliveira Otávio José de
Published: February 2025

Abstract Concern about energy efficiency and renewable energy has emerged during the global energy crisis. This issue is particularly relevant in Roraima, a state in northern Brazil, due to its dependence on isolated electrical systems. Boa Vista, the capital, has high average annual temperatures and the country's highest average residential electricity consumption, which creates an opportunity for sustainable solutions. Given the abundant availability of solar radiation in the region, photovoltaic energy has emerged as a promising alternative for meeting energy demands sustainably and economically. In this work, case studies in three homes and on a university campus in Boa Vista made it possible to analyze the energy infrastructure and challenges and propose solutions to increase energy efficiency in the state and the region. The novelty of this work lies in integrating academic perceptions about energy efficiency and photovoltaics with practical initiatives implemented on campus. The study contributes to the theoretical-scientific discourse by exploring innovative strategies to increase energy efficiency and the use of photovoltaics, helping to advance the state of the art in this field. The managerial-applied contribution guides authorities in formulating policies for technological development and the rational use of energy.
Synthesis and Microstructural Characterization of Lanthanum Doped Cerium Oxide by Solution Combustion Synthesis
Authors: Scarabelot Evandro Garske , Sousa Vânia Caldas de , Almeida Luís Alberto Loureiro dos Santos , Almeida Willians Lopes de , Egea José Jurado
Published: February 2025

Materials based on doped ceria are considered promising elements for applications in solid oxide fuel cells (SOFCs). Cerium oxide can be classified as a mixed conductor. The type of dopant also greatly influences properties of doped ceria. Hence, studying the type of dopant to be used in the synthesis process is of great importance. Recent studies have shown that the lanthanide or alkaline earth ions are the most commonly dopants used in ceria. In order to obtain nanometric powders, which favor the catalytic effect and are more reactive than other powders, a technique of obtaining powders via solution combustion synthesis (SCS) was selected, and the type of fuel used, and its excess (content) were analyzed. The parameters that were varied in this study were related to the dopant (Ce(1-x) La(x) O(2- δ), where x = 0.1, 0.2, 0.3) and the type of fuel used (urea or sucrose) The powders were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In the TGA, a significant increase in the remaining mass loss was observed with an increase in the dopant content when both urea and sucrose were used. The SCS method enabled the production of lanthanum oxide doped ceria phase using both fuels. The XRD of the samples obtained using urea as fuel exhibited well-defined, narrow, and intense peaks immediately after synthesis, and this characteristic was maintained after thermal treatment. On the other hand, the use of sucrose as fuel enables the production of the same cristalinity after thermal treatment at 850°C. In addition, these samples had a higher specific surface area and smaller crystallite size compared to those obtained using urea as fuel.
Análisis de la validez y fiabilidad de escala de falla para progresar en adultos mayores
Authors: Torres Julia Monzerrath Carranza , Delgado Jorge Raúl Palacios , Hernández Gaddy Natali Soberanes
Published: February 2025

Resumen Objetivo estimar las propiedades psicométricas (estructura factorial, validez y consistencia interna) de un instrumento desarrollado para medir falla para progresar en la población geriátrica. Método La muestra estuvo conformada por 200 adulto mayores, con un rango de edad entre 60 y 105 años de tres unidades de atención médico-geriátrica de Morelia, Celaya y San Miguel de Allende (México). Los análisis psicométricos utilizados fueron análisis factorial para la validez y alfa de Cronbach para la confiabilidad. Resultados El análisis de confiabilidad mostró un índice de 0.913 (IC95% = 0.86-0.89) en el puntaje total. Además, los resultados indican la validez factorial del instrumento propuesto con siete dimensiones: rendimiento cognitivo, depresión, multimorbilidad, funcionalidad, riesgo social, cuidador principal y nutrición. Conclusiones Se obtuvo la validez y confiabilidad una escala de falla para progresar en el diagnóstico de este síndrome geriátrico, y sugieren implicaciones de desarrollo en el ámbito clínico y de investigación.