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Bacterial biocontrol of rice disease: compatibility with pesticides and effects on the rhizosphere microbiota
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Moccellin, Renata

; Corrêa, Bianca Obes

; Castilhos, Danilo Dufech

; Moura, Andrea Bittencourt

Revista Ciência Agronômica

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2024, Volume 55 elocation e20207793

Resumo: En | Texto: En | PDF: En

ABSTRACT The aim of this study was to determine the behaviour of bacterial biocontrol agents (BBAs) selected to control disease in irrigated rice, in the presence of pesticides, and to study changes in the soil microbiota. We assessed the compatibility between these BBAs and pesticides using different doses of each compound, besides the impact of the BBAs on the quality and diversity of the soil microbiota under field conditions. For the microbial evaluations, rice seeds were treated with the same BBAs, in addition to the following combinations: DFs-C6 (DFs185 (Pseudomonas synxantha)/DFs306 (/unidentified)); DFs-C7 (DFs306/DFs416 (Bacillus sp.)) and DFs-C8 (DFs185/DFs306/DFs416). Saline solution was used for the control treatment. Soil samples were collected close to the roots to evaluate basal respiration, organic matter, carbon, and microbial biomass. EcoPlateTM microplates were used to determine the activity and diversity of the microbial metabolic profile. All the BBAs (DFs185, DFs223 (P. fluorescens), DFs306 and DFs416) were tolerant to the fungicides and herbicides regardless of the dose, whereas tolerance to the insecticides occurred only in the DFs416 isolate. Resistance, however, was only seen in the DFs185 (pyraclostrobin + epoxiconazole) and DFs223 (azoxystrobin) isolates. There were significant changes to the soil microbiota, especially with the DFsC06 treatment, which was the only treatment to increase the microbial biomass and quotient. Little or no difference was found in microbial metabolic activity or diversity. These results suggest the potential use of these bacterial treatments in integrated pest management, as they are resistant/tolerant to many pesticides used in rice cultivation, and some of them had a positive impact on the soil microbiota.

https://doi.org/10.5935/1806-6690.20240015

Adaptação transcultural e evidências de validade psicométricas da Family Health Scale para o português brasileiro
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Oliveira, Evanizia Pinheiro de

; Garcia Lira Neto, José Cláudio

; Barreto, Ivana Cristina de Holanda Cunha

; Costa, Ana Cristina Pereira de Jesus

; Freire de Freitas Júnior, Roberto Wagner

; Sousa, Danilo Ferreira de

; Araújo, Márcio Flávio Moura de

Cadernos de Saúde Pública

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2023, Volume 39 Nº 11 elocation e00048823

Resumo: Es Pt En | Texto: Es Pt En | PDF: Es | PDF: Pt | PDF: En

Resumen: El objetivo de este estudio fue traducir y realizar la adaptación intercultural de Family Health Scale (Escala de Salud Familiar) al portugués brasileño, y analizar la evidencia de la validez psicométrica de esta escala. Los 32 ítems sobre salud familiar pasaron por una adaptación transcultural y, para medir la evidencia de validez de contenido, se utilizó el cálculo del índice de validez de contenido de las características semántica, idiomática, cultural y conceptual de cada ítem, y la escala. Se realizó una prueba previa con 40 familias para identificar la evidencia de validez. En otro momento, el instrumento se aplicó a 354 familias en una ciudad del Nordeste de Brasil. El índice de acuerdo entre los jueces osciló entre 0,84 para los ítems de la escala y 0,98 para la escala total de acuerdo con el coeficiente de Kendall. La evidencia de validez psicométrica es adecuada conforme el alfa de Cronbach. La mayoría de las familias tenían un grado de salud moderado de acuerdo con la aplicación de la escala. Por lo tanto, la Family Health Scale, versión brasileña, presentó equivalencia conceptual, semántica, cultural y operativa con relación a los ítems originales, y propiedades psicométricas satisfactorias para la aplicación en la población brasileña, lo que da fe de la eficacia y seguridad de su uso.

Resumo: Os objetivos deste estudo foram realizar a tradução e adaptação transcultural da Family Health Scale (Escala de Saúde Familiar) para a língua portuguesa brasileira e analisar evidências de validade psicométricas dessa escala. Os 32 itens sobre a saúde familiar foram adaptados transculturalmente. Para a mensuração das evidências de validade do conteúdo, utilizou-se o cálculo do índice de validade de conteúdo das características semântica, idiomática, cultural e conceitual de cada item e da escala. Um pré-teste para identificação de evidência de validade foi realizado com 40 famílias. Em outro momento, a aplicação do instrumento foi executada com 354 famílias, em uma cidade no Nordeste do Brasil. O índice de concordância entre os juízes variou de 0,84, para os itens da escala, a 0,98, para a escala total, conforme o coeficiente de Kendall. As evidências de validade psicométricas mostram-se adequadas, conforme alfa de Cronbach. A maior parte das famílias teve um grau de saúde moderado, conforme aplicação da escala. Assim, a Family Health Scale, versão brasileira, apresentou equivalência conceitual, semântica, cultural e operacional em relação aos itens originais e propriedades psicométricas satisfatórias para a aplicação direcionada à população brasileira, atestando eficácia e segurança de sua utilização.

Abstract: This study aimed to translate and cross-culturally adapt the Family Health Scale into Brazilian Portuguese and analyze evidence of its psychometric validity. The 32 items on family health were cross-culturally adapted, using the content validity index to calculate semantic, idiomatic, cultural, and conceptual characteristics of the scale and its items. A pre-test to identify evidence of validity was applied to 40 families. At another time, the instrument was applied to 354 families in a Brazilian northeastern city. The index of agreement between the raters ranged from 0.84 for the scale items to 0.98 for the total scale, according to Kendall’s coefficient. According to Cronbach’s alpha, evidence of psychometric validity is adequate. Most families had a moderate degree of health, according to the scale. Therefore, the Brazilian version of the Family Health Scale showed conceptual, semantic, cultural, and operational equivalence with the original items, along with satisfactory psychometric properties for use among the Brazilian population with effectiveness and safety.

https://doi.org/10.1590/0102-311xpt048823

Photodynamic therapy for infected foot ulcers in people with diabetes mellitus: a systematic review
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Brandão, Maria Girlane Sousa Albuquerque

; Ximenes, Maria Aline Moreira

; Sousa, Danilo Ferreira de

; Veras, Vivian Saraiva

; Barros, Lívia Moreira

; Rabeh, Soraia Assad Nasbine

; Costa, Idevania Geraldina

; Araújo, Thiago Moura de

Sao Paulo Medical Journal

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2023, Volume 141 Nº 6 elocation e2022476

Resumo: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: Ulceration of the feet in patients with diabetes is a frequent complication that increases morbidity, mortality, hospitalization, treatment costs, and non-traumatic amputations. OBJECTIVE: To present a systematic review of the treatment of patients with diabetes mellitus and infected foot ulcers using photodynamic therapy. DESIGN AND SETTING: A systematic review was performed in the postgraduate program in nursing at the Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Ceará, Brazil. METHODS: PubMed, CINAHL, Web of Science, EMBASE, Cochrane Library, Scopus, and LILACS databases were screened. The methodological quality, risk of bias, and quality of evidence of each study were assessed. Review Manager was used for the meta-analysis. RESULTS: Four studies were included. They highlighted significantly better outcomes in patient groups treated with photodynamic therapy than those in the control groups that were treated with topical collagenase and chloramphenicol (P = 0.036), absorbent (P < 0.001), or dry covers (P = 0.002). Significant improvements were noted in terms of the microbial load in the ulcers and tissue repair, with a reported reduction in the need for amputation by up to 35 times. Photodynamic therapy resulted in significantly better outcomes between the experimental and control groups (P = 0.04). CONCLUSION: Photodynamic therapy is significantly more effective in treating infected foot ulcers than standard therapies. SYSTEMATIC REVIEW REGISTRATION: International Prospective Register of Systematic Reviews (PROSPERO) - CRD42020214187, https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=214187.

https://doi.org/10.1590/1516-3180.2022.0476.27022023

Adaptação transcultural e evidências de validade psicométricas da Family Health Scale para o português brasileiro
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Oliveira, Evanizia Pinheiro de

; Garcia Lira Neto, José Cláudio

; Barreto, Ivana Cristina de Holanda Cunha

; Costa, Ana Cristina Pereira de Jesus

; Freire de Freitas Júnior, Roberto Wagner

; Sousa, Danilo Ferreira de

; Araújo, Márcio Flávio Moura de

Cadernos de Saúde Pública

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2023, Volume 39 Nº 11 elocation e00048823

Resumo: En Es Pt | Texto: En Es Pt | PDF: En | PDF: Es | PDF: Pt

https://doi.org/10.1590/0102-311xpt048823

Multidisciplinary Scientific Cruises for Environmental Characterization in the Santos Basin – Methods and Sampling Design
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Moreira, Daniel L.

; Dalto, Adriana G.

; Figueiredo JR, Alberto G.

; Valerio, Aline M.

; Detoni, Amalia M. S.

; Bonecker, Ana C. T.

; Signori, Camila N.

; Namiki, Cláudia

; Sasaki, Dalton K.

; Pupo, Daniel V.

; Silva, Danilo A.

; Kutner, Deborah S.

; Duque-Castaño, Diana C.

; Marcon, Eduardo H.

; Gallotta, Fabiana D. C.

; Paula, Fabiana S.

; Gallucci, Fabiane

; Roque, Gabriela C. F.

; Campos, Giulia S.

; Fonseca, Gustavo

; Mattos, Gustavo

; Lavrado, Helena P.

; Silveira, Ilson C. A. da

; Costa, Jessica O.

; Santos Filho, João R. dos

; Carneiro, Juliane C.

; Moreira, Julio C.F.

; Rozo, Laura

; Araujo, Leandro F.M.

; Lazzari, Letícia

; Silva, Letícia O. da

; Michelazzo, Luan S.

; Fernandes, Luciano F.

; Dottori, Marcelo

; Araújo Jr., Marcus A. G. de

; Chuqui, Mateus G.

; Ceccopieri, Milena

; Borges-Silva, Milton

; Kampel, Milton

; Bergo, Natascha M.

; Silva, Paulo V. M.

; Tura, Pedro M.

; Moura, Rafael B. de

; Romano, Renato G.

; Martins, Renato P.

; Carreira, Renato S.

; Toledo, Rodrigo G.A.

; Bonecker, Sérgio L.C.

; Disaró, Sibelle T.

; Rodrigues, Silvana V.

; Corbisier, Thais N.

; Vicente, Thaisa M.

; Paiva, Vitor G. de

; Pellizari, Vivian H.

; Belo, Wellington C.

; Brandini, Frederico P.

; Sousa, Silvia H.M

Ocean and Coastal Research

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2023, Volume 71 Supl. 3 elocation e23022

Resumo: En | Texto: En | PDF: En

Abstract The Santos Basin (SB) is the main petroliferous basin in the Brazilian continental margin and one of the most studied marine areas in Brazil. However, historical data suggest that new efforts should be carried out to acquire quantitative biological data, especially in the deep sea, to establish the baseline of essential ocean variables in different ecosystems for future monitoring programs. The Brazilian energy company Petrobras planned and executed 24 oceanographic cruises over a period of 2 years to assess the benthic (SANSED cruise) and pelagic (SANAGU cruise) systems of the SB (356 days at sea in 2019 and 2021/2022). These efforts were part of the Santos Project, which comprised a comprehensive environmental study aimed at investigating benthic and pelagic variables to characterize ecology, biogeochemistry, thermohaline properties of water masses, and ocean circulation patterns, geomorphology, and sedimentology, as well as organic and inorganic chemistry. Here we present the detailed sampling designs and the field methods employed on board, during the SB scientific cruises. All sampling protocols were based on standardized approaches. For the benthos analyses, triplicate sediment samples were performed using a GOMEX-type box corer (0.25 m²) or a large modified Van Veen grab (0.75 m²) at 100 stations ranging from 25 to 2400 m depth. At each station, 25 geochemical and physico-chemical parameters were analyzed in addition to micro-, meio-, and macrofauna and living foraminifera samples. For the pelagic system, 60 stations were selected to investigate the plankton community, ranging in size from pico- to macroplankton, through vertical, horizontal, and oblique net hauls (20, 200, and 500 μm mesh size), as well as 25 biogeochemical parameters collected with an aid of a CTD-rosette sampler. Part of this scientific information also serves the Regional Environmental Characterization Project (PCR-BS) in support of Petrobras’ Santos Basin drilling licensing process led by the Brazilian Environmental Agency – IBAMA. This project contributes to the sustainable development of the SB, in line with the guidelines of the United Nations Decade of Ocean Science for Sustainable Development.

https://doi.org/10.1590/2675-2824071.22072dlm

Micobiota asociada con yerba mate comercializada en Paraguay
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Mendoza, Laura

; Peralta, Inocencia

; Ulke, Gabriela

; Gonzalez, Laura

; Avalos, Claudia

; Ferreira, Francisco

; Piris, Laura

; Grabowski, Cristhian

; Benitez, Alicia

; Pizarro, Fernando

; Sanchez, Susana

; Cazal, Cinthia

; Moura Mendes, Juliana

; Kohli, Man Mohan

; Fernández Rios, Danilo

; Arrua, Andrea Alejandra

Reportes científicos de la FACEN

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Dez 2022, Volume 13 Nº 2 Páginas 175 - 182

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen: La yerba mate (Ilex paraguariensis) es una hierba ampliamente consumida que se originó en Paraguay, pero que crece en la región entre el sur de Brasil, el norte de Argentina, Paraguay y Uruguay. Se informa que la planta posee múltiples propiedades medicinales que hacen que la yerba mate sea popular para el consumo en esta región. Actualmente también se considera un producto nutracéutico y un alimento funcional que es consumido en diferentes países del mundo. En medicina popular, se ha reportado científicamente que posee múltiples propiedades. Treinta y nueve marcas de muestras de yerba mate se analizaron mediante placas de dilución en serie y se incubaron a 25°C durante 5 días se determinó la incidencia fúngica. De las 39 muestras analizadas, el 15,4% estuvieron libres de la presencia de hongos y levaduras. El 84,6% restante presentó contaminación con incidencias variables de Aspergillus. Se observó la presencia de Aspergillus secciones nigri, flavi, circumdati, fumigati, wentii, usti, versicolor y Emericella nidulans, siendo la prevalente Aspergillus sección nigri, representando el 65,3%. Teniendo en cuenta los riesgos a la salud asociados con estos hongos, es importante considerar la formulación de regulaciones con respecto al tamaño de las partículas y la presencia de ocratoxinas y aflatoxinas en los productos comerciales de yerba mate.

Abstract: Yerba mate (Ilex paraguariensis) is a widely consumed herb which originated in Paraguay but grows widely in the region between Southern Brazil, Northern Argentina, Paraguay, and Uruguay. The plant is reported to possess multiple medicinal properties which makes yerba mate popular for consumption as tea in this region. It is also being considered as a nutraceutical product and a functional food consumed in different countries around the world. In popular medicine, and it has been scientifically reported to possess multiple properties. Thirty-nine brands of yerba mate samples were analyzed by serial dilution plates. and incubated at 25 ° C for 5 days. Based on their morphological characteristics, the fungal incidence and the number of colonies forming units were determined. Of the 39 samples analyzed, 15.4% were free from the presence of fungi and yeasts. The remaining 84.6% of the samples were contaminated with variable contents of the fungi Aspergillus. The presence of Aspergillus sections nigri, flavi, circumdati, fumigati, wentii, usti, versicolor and Emericella nidulans was observed the most prevalent among them was Aspergillus section nigri, representing 65.3%. Considering the health risks associated with these fungi, it is important to consider formulating regulations regarding the particle size and the presence of ochratoxins and aflatoxins in commercial yerba mate products.

https://doi.org/10.18004/rcfacen.2022.13.2.175

Production and physicochemical characterization of genotypes of Eugenia uniflora L.
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Monte Andrade, Alex Danilo

; Moura, Elias Ariel

; Mendonça, Vander

; Mendes Oliveira, Luana

; Souza Ferreira, Enoch

; Ferreira Melo, Bruna Ester

; Andrade Figueiredo, Francisco Romário

; Ferreira Melo, Marlenildo

; Freitas Medeiros Mendonça, Luciana

Revista de la Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo

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Dez 2022, Volume 54 Nº 2 Páginas 1 - 11

Resumo: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen Pitanga (Eugenia uniflora L.) es una fruta exótica de gran importancia económica por su alto potencial de uso. Sin embargo, debido a su variabilidad genética, su explotación se ve dificultada por no presentar producción de frutos homogénea. En este contexto, este estudio tuvo como objetivo seleccionar genotipos de pitanga de acuerdo con las características físicas y fisicoquímicas de los frutos en condiciones semiáridas. Se desarrolló en la Universidad Federal Rural del Semiárido y los genotipos se originaron a partir de la polinización abierta de la variedad pitanga ‘Tropicana’. Se evaluaron 39 genotipos de pitanga con respecto a los siguientes rasgos: masa de fruto (g), longitud y diámetro de fruto (mm), sólidos solubles (SS, °Brix), acidez titulable (AT), ácido ascórbico (AA), pH y Relación SS/AT. Los genotipos de pitanga presentaron alta variabilidad. El agrupamiento permitió separar los genotipos de acuerdo con los rasgos deseables. El genotipo A12 presentó frutos de mayor calibre, y el genotipo A8 presentó los mayores contenidos de SS y AT. Los genotipos A2, A13, A34 y A39 presentaron altos valores de AT. Los genotipos A11, A16, A45, A9, A26 y A44 presentaron los contenidos más significativos de pH y relación SS / AT en los frutos.

Abstract Pitanga (Eugenia uniflora L.) is an exotic fruit species of significant economic importance. However, due to genetic variability, its exploitation is hampered by the lack of homogeneous fruit production. In this scenario, this study aimed to select pitanga genotypes according to the physical and physicochemical parameters of fruits grown under semi-arid conditions. The study was developed at the Federal Rural University of the Semi-Arid Region with genotypes resulting from the open pollination of the pitanga variety ‘Tropicana”. Thirty-nine pitanga genotypes were evaluated for fruit mass, fruit length, fruit diameter, soluble solids (SS), titratable acidity (TA), ascorbic acid (AA), pH, and SS/TA ratio. The pitanga genotypes showed high variability. The clustering method separated the genotypes according to desirable traits. Genotype A12 showed the largest fruit sizes, whereas genotype A8 showed the highest SS and TA contents. Genotypes A2, A13, A34, and A39 showed fruits with the highest AT values. On the other hand, genotypes A11, A16, A45, A9, A26, and A44 showed the most significant contents of pH and SS/TA.

Additional acute effects of virtual reality head-mounted displays on balance outcomes in non-disabled individuals: a proof-of-concept study
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Moura Neto, Eduardo de

; Fonseca, Bruno Henrique de Souza

; Rocha, Danilo Santos

; Souza, Luciane Aparecida Pascucci Sande de

; Abdalla, Douglas Reis

; Viana, Dayane Aparecida

; Luvizutto, Gustavo José

Motriz: Revista de Educação Física

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2022, Volume 28 elocation e10220006721

Resumo: En | Texto: En | PDF: En

Abstract Aim: This study aims to evaluate the additional acute effect of virtual reality (VR) head-mounted displays (HMD) when associated with balance exercises in balance outcomes in non-disabled individuals. Methods: Thirty individuals were randomized into two groups: balance exercise group (GBE; n = 15); and virtual reality + balance exercise group (GVR + BE; n = 15). The individuals were evaluated by static and dynamic balance using the tandem test (TT), single-leg stance (SLS), and Fukuda stepping test (FST). Both groups performed 30 min of balance exercises. The GVR + BE performed 8 additional minutes of virtual reality prior to balance exercises. A roller coaster application was used for the HMD. The Mann-Whitney test was used for intra-group and differences of inter-group analysis, considering a significance level of p < 0.05. Results: In the GBE group analysis, there was observed an increase of time in TT with closed eyes (p = 0.025) and SLS with closed eyes (p = 0.003). In the same way, the GVR + BE group increase TT with closed eyes (p = 0.003) and SLS with closed eyes (p = 0.002) after the intervention. In the intergroup analysis, the increase in the SLS with closed eyes was superior in the GVR + BE group when compared with GBE (p = 0.006; d = 1.67). Conclusion: The use of HMD in combination with balance exercise has an acute effect on increasing static balance in non-disabled individuals.

https://doi.org/10.1590/s1980-657420220006721

Physicochemical properties and osteoclastogenesis for three premixed calcium silicate-based sealers post set
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Rosatto, Camila Maria Peres de

; Souza, Gabriela Leite de

; Ferraz, Danilo Cassiano

; Silva, Marcelo José Barbosa

; Tanomaru Filho, Mario

; Moura, Camilla Christian Gomes

Brazilian Oral Research

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2022, Volume 36 elocation e065

Resumo: En | Texto: En | PDF: En

Abstract: Solubility, pH, ion release, cytotoxicity, and osteoclastogenesis inhibition in bone marrow-derived monocyte macrophages (BMMs) were evaluated in EndoSequence BC Sealer (END), Bio-C Sealer (BC), and Sealer Plus BC (SPBC). pH was determined after immersion of the sealers in deionized water (DW) and Minimum Essential Medium Alpha (α-MEM). Solubility was obtained by mass loss. Ion release was measured by using X-ray fluorescence spectroscopy (XRF). Cytotoxicity was evaluated by MTT assay. Inhibition of osteoclastogenesis was evaluated by tartrate-resistant acid phosphatase (TRAP). Data were analyzed using the t-test, ANOVA and Tukey/Dunnett's post-hoc tests (α = 0.05). END had the highest pH in DW (p < 0.05), and BC, in α-MEM (p < 0.05). Solubility in DW was the lowest for SPBC (p < 0.005). The highest calcium release was observed for BC in DW at 12 h (p < 0.05), and in α-MEM at 12 and 24 h (p < 0.05). The lowest toxicity was detected for END (p < 0.05). BC had the highest inhibitory effect on osteoclasts (p < 0.05). Overall, the highest solubility and pH values were found in DW. However, the calcium silicate-based sealer showed higher solubility than the ISO standards. Calcium release was the highest for BC. END showed the highest cell viability, and BC, the highest osteoclast inhibition.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0065

10.

Presencia de aflatoxina M1 en fórmulas lácteas infantiles comercializadas en el área metropolitana a Asunción, Paraguay
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Arrúa, Andrea Alejandra

; David Arrua, Pablo

; Ulke, María Gabriela

; Quezada Viay, Martha Yolanda

; Moreno Lara, Josefina

; Moura Mendes, Juliana

; Cazal, Cinthia

; Ferreira, Francisco

; Mohan Kohli, Man

; López-Nicora, Horacio

; Fernández-Rios, Danilo

Pediatría (Asunción)

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Abr 2021, Volume 48 Nº 1 Páginas 37 - 43

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Introduction: Aflatoxin M1 (AFM1) is a toxic metabolite derived from aflatoxin B. Its ingestion in infants has been related to growth retardation, increased susceptibility to infectious diseases, reduced immunization efficiency, and cirrhosis. In Paraguay, exclusive breastfeeding is recommended up to 6 months of age, however, different brands of infant formulas targeted at this age range are marketed. Objective: To detect and quantify the presence of AFM1 in infant formulas marketed in the Metropolitan Area. Materials and Methods: Fluid (n = 18) and powder (n = 91) formulas for infants aged 0 to 12 months were purchased from pharmacies and supermarkets in the Metropolitan Area of Asunción and were analyzed using the enzyme-linked immunoaffinity assay (ELISA). Results: 9.75% (0 to 6 months) and 2% (6 to 12 months) of the powdered milk formulas and 100% of the fluid formulas were positive for AFM1. The median content of AFM1 in powder formulas was 1820 ng/kg and 510 ng/kg in brands A and B, while in liquid formulas it was 31.8 ng/kg and 33.6 ng/kg for the two brands analyzed respectively (p = 0.0001). Conclusions: AFM1 was detected in all the liquid formulas analyzed, and in 2 and 9.7% of the powder formulas of brands A and B, respectively. The levels of AFM1 were higher in the powder formulas.

RESUMEN Introducción: La aflatoxina M1 (AFM1) es un metabolito tóxico derivado de la aflatoxina B. Su ingestión en lactantes se ha relacionado con retraso en el crecimiento, aumento de susceptibilidad a enfermedades infecciosas, reducción de la eficiencia en la inmunización y cirrosis. En Paraguay se recomienda lactancia exclusiva hasta los 6 meses, sin embargo se comercializan diferentes marcas de fórmulas infantiles dirigidas a lactantes menores de 6 meses. Objetivo: Detectar y cuantificar la presencia de AFM1 en fórmulas para lactantes comercializadas en el Área Metropolitana. Materiales y Métodos: Se adquirieron fórmulas fluidas (n=18) y en polvo (n=91) para lactantes de 0 a 12 meses de farmacias y supermercados del Área Metropolitana de Asunción y fueron analizados mediante el ensayo de inmunoafinidad ligado a enzimas (ELISA). Resultados: 9,75% (0 a 6 meses) y 2% (6 a 12 meses) de las fórmulas lácteas en polvo y 100% de las fórmulas fluidas resultaron positivas para AFM1. La mediana de contenido de AFM1 en formulas en polvo fue de 1820 ng/kg y 510 ng/kg en las marcas A y B. En las fórmulas líquidas fue de 31,8 ng/kg y 33,6 ng/kg para las dos marcas analizadas respectivamente, p=0,0001. Conclusiones: Se detectó AFM1 en todas las fórmulas líquidas analizadas, y en el 2 y 9,7% de las fórmulas en polvo de las marcas Ay B respectivamente Los niveles de AFM1 fueron mayores en las fórmulas en polvo.

https://doi.org/10.31698/ped.48012021007 226 downloads

11.

Caracterização e uso da cinza do bagaço de cana-de-açúcar em tijolos de solo-cimento
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Moura, Elda Marra de

; Sales, Joel Neto Bispo de

; Nascimento, Natalia Cristina do

; Sousa, Vitor Magalini Zago de

; Silva, Danilo Duarte Costa e

; Libera Junior, Vilson Dalla

Ambiente Construído

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Jan 2021, Volume 21 Nº 1 Páginas 69 - 80

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo No Brasil, as indústrias sucroalcooleiras, além de gerar produtos importantes como o álcool e o açúcar, produzem subprodutos como a cinza do bagaço de cana de açúcar (CBC). A CBC possui um alto material pozolânico, podendo ser aplicado em materiais de construção civil como substituto parcial do cimento. O presente trabalho teve como objetivo caracterizar a cinza do bagaço da cana-de-açúcar e utilizá-la como material cimentício suplementar na produção de tijolos solo-cimento. A CBC foi utilizada substituindo percentuais de cimento utilizados na composição de de tijolos nas proporções de 10, 20 e 50% em massa. A caracterização química da CBC indicou a presença de sílica cristalina na forma de quartzo e cristobalita. Após a substituição parcial do cimento pela cinza, os tijolos conservaram sua resistência à compressão. Entre as composições estudadas, a substituição parcial do cimento pela CBC em 20% apresentou a maior resistência a compressão simples. De acordo com o estudo, a CBC se mostrou como um subproduto indicado para a produção de materiais de construção sustentáveis.

Abstract In Brazil, the sugar and alcohol industries generate important products such as alcohol and sugar, and produce byproducts as sugarcane bagasse ash (SBAS). The SBAS has a high pozzolan content and can be applied as a partial cement substitute in the production of building materials. This study aims to characterise sugarcane bagasse ash and use it as a supplementary cementitious material in the production of soil-cement bricks. SBAS was used to replace the percentages of cement used in brick composition in the proportions of 10, 20 and 50% by mass. The chemical characterisation of SBAS indicated the presence of crystalline silica in the form of quartz and cristobalite. After partial replacement of cement by ash, the bricks preserved their compressive strength. Among the compositions studied, the partial replacement of cement by SBAS at 20% presented the highest compressive strength. The results showed that SBAS is a suitable byproduct for the manufacture of sustainable building materials.

https://doi.org/10.1590/s1678-86212021000100494 1639 downloads

12.

Effect of irrigation protocols on root canal wall after post preparation: a micro-CT and microhardness study
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Rosatto, Camila Maria Peres de

; Ferraz, Danilo Cassiano

; Oliveira, Lilian Vieira

; Soares, Priscilla Barbosa Ferreira

; Soares, Carlos José

; Tanomaru Filho, Mario

; Moura, Camilla Christian Gomes

Brazilian Oral Research

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2021, Volume 35 elocation e122

Resumo: En | Texto: En | PDF: En

Abstract: The aim of this study was to investigate the effects of different post space irrigation protocols for removing residual filling material from dentin walls, by using microcomputed tomography (micro-CT), and the influence of these protocols on dentin microhardness. Bovine incisors (n = 35) were filled with the single-cone technique and MTA Fillapex (Angelus, Londrina, PR, Brazil). Post space preparation (PSP) was performed 7 days after filling, using the Odous Touch electrical system (Odous De Deus Ind. e Com., Belo Horizonte, MG, Brazil), followed by post space irrigation using manual irrigation, passive ultrasonic irrigation, or Easy Clean, together with 2.5% sodium hypochlorite (NaOCl), or with 2.5% NaOCl and 17% EDTA (NaOCl/EDTA). Micro-CT scans were performed at three time points. The residual filling material was evaluated at three levels: cervical, middle and apical. The Knoop test was measured with four indentations around the canal lumen at three dentin depths: X (100 μm), Y (200 μm) and Z (400 μm). Statistical analysis was performed using ANOVA (p < 0.05). The effects of the activation method (p < 0.001), and the root level (p = 0.013), as well as the interaction between the irrigant and the activation method (p = 0.041), led to different percentages of residual filling material. Lower amounts of residual filling material were observed at the cervical versus the middle and apical levels (p < 0.05). No significant differences were observed in dentin microhardness (p > 0.05). The best removal of the residual filling material was performed using the Easy Clean tip and NaOCl/EDTA, regardless of the activation methods.

https://doi.org/10.1590/1807-3107bor-2021.vol35.0122 1 downloads

13.

Ultrasound-Promoted Synthesis, Structural Characterization and in vitro Antimicrobial Activity of New 5-Aryl-3-(2-hydroxyphenyl)-4,5-dihydro-1H-pyrazole-1-carboximidamides
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Albuquerque, Danilo Y. de

; Damim, Andressa C.

; Faoro, Eliandro

; Casagrande, Gleison A.

; Back, Davi F.

; Moura, Sidnei

; Pereira, Claudio M. P. de

; Oliveira, Kelly M. P. de

; Pizzuti, Lucas

Journal of the Brazilian Chemical Society

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Abr 2020, Volume 31 Nº 4 Páginas 746 - 755

Resumo: En | Texto: En | PDF: En

This work aims the synthesis of amidino pyrazolines by the cyclocondensation reaction between 3-(hetero)aryl-1-(2-hydroxyphenyl)enones and aminoguanidine hydrochloride under sonochemical conditions. Thirteen new compounds were synthesized in 15-83% of yield after sonication for 30 min without purification by chromatography. Furthermore, antimicrobial activities of the synthesized compounds were investigated by in vitro minimum inhibitory concentration (MIC) in a panel of four bacterial strains and four Candida yeasts. As result, the 5-(4-bromophenyl)-3-(2-hydroxyphenyl)-4,5-dihydro-1H-pyrazole-1-carboximidamide hydrochloride was identified as the most active against gram-positive S. aureus and E. faecalis with MIC of 7.8 µg mL−1, similar to the value showed by chloramphenicol, which was used as standard.

https://doi.org/10.21577/0103-5053.20190239 275 downloads

14.

Apical Displacement and Residual Root Canal Filling with Single-Cone After Post Space Preparation: A Micro-CT Analysis
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Rosatto, Camila Maria Peres de

; Oliveira, Lilian Vieira

; Ferraz, Danilo Cassiano

; Soares, Priscilla Barbosa Ferreira

; Soares, Carlos José

; Moura, Camilla Christian Gomes

Brazilian Dental Journal

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Jan 2020, Volume 31 Nº 1 Páginas 25 - 31

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O objetivo deste estudo foi avaliar a presença de resíduos após o alívio do canal (AC) e verificar se o deslocamento apical da guta-percha foi afetado pelos momentos e métodos de AC em dentes obturados pela técnica do cone único. Os canais radiculares de 20 dentes incisivos bovinos foram instrumentados com Reciproc e obturados com cone único e AH Plus. As amostras foram divididas em 4 grupos de acordo com o momento e método de AC (n=5): broca imediato, termocompactador imediato, broca tardio e termocompactador tardio. Escaneamentos em micro-CT foram realizados antes e após o AC para análise dos resíduos da obturação (1) e do deslocamento apical (2). Os dados foram analisados empregando ANOVA em 2 fatores com medida repetida (1), ANOVA em dois fatores (2), seguidas do teste de Tukey (α=0,05). A porcentagem de resíduos remanescentes foi influenciada pelos métodos (p=0,044), momentos (p=0,006), pelo fator de repetição terços do canal (p<0,001), e pelas interações entre métodos e terços (p<0,001), e momentos e terços (p=0,044). Já para o deslocamento apical da obturação do canal radicular foi detectada influência significativa para os métodos (p=0,008), no entanto, nenhuma diferença foi encontrada entre os momentos (p=0,617). Em geral, AC usando brocas resultou em preparo mais homogêneo dos canais radiculares, principalmente quando realizado imediatamente após a obturação. Para todas as outras combinações entre métodos e momentos de AC, o terço médio e apical apresentaram significativamente maiores resíduos remanescentes. O método termo realizado nos dois momentos e o método broca de preparo realizado imediatamente resultaram em deslocamento na direção apical, representando a extrusão do material de obturação no canal radicular.

Abstract The purpose of this study was to evaluate the presence of residues after post space preparation (PSP) and establish whether the apical displacement of the gutta-percha was affected by the moments and methods of PSP in teeth filled by the single-cone technique. The root canals of 20 bovine incisor teeth were instrumented with Reciproc and filled with single-cone and AH Plus. The specimens were divided into 4 groups according to the moment and method of PSP (n=5): immediate with drill, immediate with thermoplasticizer, delayed with drill and delayed with thermoplasticizer. Micro-CT scans were performed before and after the PSP for residues of the root canal filling (1) and analysis of apical displacement (2). Data were analyzed by using 2-way repeated measurement ANOVA (1) and 2-way ANOVA (2) followed by the Tukey’s test (a=0.05). Significance effect on the residues percentage remaining for methods (p=0.044), for moments (p=0.006), for thirds repetition (p<0.001), and for interaction between methods and thirds (p<0.001), and moments and thirds (p=0.044). Significance effect on the apical displacement of root canal filing was detected for methods (p=0.008), however no difference was found between moments (p=0.617). In general, PSP using drill resulted in more homogeneous root canal preparation, mainly when made immediately. For all other combinations between methods and moments for PSP, the middle and apical thirds presented significant higher residues remaining. Thermo method performed in both moments and the drill method performed immediately had displacement in the apical direction, representing extrusion of the root filling material.

https://doi.org/10.1590/0103-6440202002597 1207 downloads

15.

An integrated approach for carbonate reservoir characterization: a case study from the Linguado Field, Campos Basin
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Lupinacci, Wagner Moreira

; Gomes, Livia de Moura Spagnuolo

; Ferreira, Danilo Jotta Ariza

; Bijani, Rodrigo

; Freire, Antonio Fernando Menezes

Brazilian Journal of Geology

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2020, Volume 50 Nº 4 elocation e20190103

Resumo: En | Texto: En | PDF: En

Abstract The main reservoirs in the Linguado Field are grainstone and packstone carbonates composed of oolites, oncolites, pelloids, and rare bioclasts, of the Quissamã Formation (Albian-age) and coquinas of the Coqueiros Formation (Aptian-age). Within Quissamã Formation, facies have high porosity variations and their 3D characterization is of utter importance to allow for a better location of the wells. The objective of this study was a volumetric characterization of Quissamã Formation by means of an adapted classical workflow composed of well-seismic tie, seismic preconditioning, seismic interpretation, seismic inversion, petrophysical properties estimation, and porosity geostatistical modeling. Seismic inversion results allowed the interpretation of a horizon to separate the carbonate platform in an upper zone, with low acoustic impedance, from a lower zone, with high acoustic impedance. Finally, behavioral knowledge of acoustic impedance and the porosity distribution within the Albian carbonate platform helped to better characterize the distribution of carbonaceous facies allowing the confirmation that commercial wells were drilled in low acoustic impedance and high porosity regions. It was also possible to confirm that a well, declared as noncommercial, was drilled in a poor reservoir region with high acoustic impedance and low porosity and identified other locations that were not yet drilled but could represent potential targets.

https://doi.org/10.1590/2317-4889202020190103 1366 downloads

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