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Computer-Aided Drug Design Studies in Association with in vitro Antileishmanial Tests for New Chalcones ComputerAided Computer Aided
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Silva, Gleice R. da
; Santos, Francisnaira S.
; Leite, Fernando F.
; Acevedo, Chonny A. H.
; Sousa, Natália F. de
; Grimaldi, Gabriela B.
; Soares, Milena B. P.
; Guimarães, Elisalva T.
; Scotti, Marcus T.
; Rodrigues, Luis Cezar
; Mendonça Júnior, Francisco J. B.
; Campana, Eloísa H.
; Barbosa Filho, José M.
; Guimarães, Hemerson I. F.
; Guerra, Felipe Q. S.
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
In silico and in vitro tests can reveal promising anti-leishmania activity for natural products and their derivatives. The aim of this study was to investigate in silico the pharmacological activities of potential new chalcones and their leishmanicidal potential in vitro. The in silico study was carried out using the PASS, MolPredictX and Molegro Virtual Docker 6.0 programs. Antiparasitic activity was assessed in axenic promastigote and amastigote forms of Leishmania braziliensis. The cytotoxicity tests used the J77G8 cell line. The chalcones exhibited 50% cytotoxic concentration values (CC50) values > 50 μM. Chalcone 4 (named FERAI) presented the best activity with concentration for 50% of promastigotes and intracellular parasites forms (EC50) of 9.75 ± 1.7 and 10.13 ± 1.7 μM for promastigote and amastigote, respectively. Reactive oxygen species (ROS) testing presented increased ROS levels in the parasite at the FERAI concentrations of 10 μM (56.33%), 20 μM (61.76%) and 30 μM (67.13%). Molecular docking revealed interactions (binding energy) between FERAI and the enzymes UDP-glycosyl pyrophosphorylase (-56.8384), dihydroorotate-dehydrogenase (-132.276) and trypanothione-reductase (-151.281). Our results demonstrated the anti-leishmanial activity of chalcones, especially FERAI, with a noted raising of ROS levels in the parasite. Molecular docking revealed dihydroorotate dehydrogenase and trypanothione reductase as potential pharmacological targets for FERAI. antileishmania anti leishmania derivatives PASS 60 6 0 6. programs braziliensis JG J G J77G line CC50 CC (CC50 5 named EC50 EC (EC50 975 9 75 9.7 17 1 7 1. 1013 13 10.1 respectively (ROS 56.33%, 5633 56.33% , 56 33 (56.33%) 2 61.76% 6176 61 76 (61.76% 3 67.13%. 6713 67.13% . 67 (67.13%) binding energy UDPglycosyl UDP glycosyl 56.8384, 568384 56.8384 8384 (-56.8384) dihydroorotatedehydrogenase 132.276 132276 132 276 (-132.276 trypanothionereductase 151.281. 151281 151.281 151 281 (-151.281) antileishmanial leishmanial CC5 (CC5 EC5 (EC5 97 9. 101 10. 563 56.33 (56.33% 61.76 617 (61.76 671 67.13 (67.13% 56838 56.838 838 (-56.8384 132.27 13227 27 (-132.27 15128 151.28 15 28 (-151.281 (CC (EC 56.3 (56.33 61.7 (61.7 67.1 (67.13 5683 56.83 83 (-56.838 132.2 1322 (-132.2 1512 151.2 (-151.28 56. (56.3 61. (61. 67. (67.1 568 56.8 8 (-56.83 132. (-132. 151. (-151.2 (56. (61 (67. (-56.8 (-132 (-151. (56 (6 (67 (-56. (-13 (-151 (5 ( (-56 (-1 (-15 (-5 (-
2.
In vitro and in silico Antifungal Activity of Metabolites from Bredemeyera brevifolia (Benth.) Klotzsch ex A.W. Benn. Benth. Benth (Benth. AW A W A.W Benn (Benth
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Barreto, Rubens S.
; Costa, Diego M. da
; Sousa, Jailan S.
; Jesus, Vilisaimon S. de
; Silva, Agnaldo P. da
; Buonafina-Paz, Maria Daniela S.
; Santos, Franz A. G. dos
; Neves, Rejane P.
; Pastore, José F. B.
; Andrade, Bruno S.
; Soares, Wagner R. A.
; Brandão, Hugo N.
; Aguiar, Rosane M.
; Alves, Clayton Q.
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
Bredemeyera Willd. is a genus of the Polygalaceae family, occurring in Brazil. This research aims to evaluate the phytochemical and antifungal potential, in vitro and in silico, of Bredemeyera brevifolia extracts. The identification of fatty acids by gas chromatography-mass spectrometry and their quantification by gas chromatography-flame ionization detector showed that palmitic (36.55 mg g−1), margaric (3.66 mg g−1), linolelaidic (108.82 mg g−1), oleic (7.86 mg g−1), stearic (41.11 mg g−1), dihomo-γ-linolenic (85.48 mg g−1), and arachidic (209.00 mg g−1) acids are present in the hexane extract. From the chloroform extract, 1-hydroxy-3,7-dimethoxyxanthone was isolated and identified. The minimum inhibitory concentration assay with methanolic extract demonstrated antifungal activity against species of the genus Candida, Sporothrix, and Trichophyton for up to 96 h, with values ranging from 64-1024 μg mL−1. The in silico study with the chemical compounds of this species showed fungal inhibition potential of sterol-14-α-demethylase, highlighting 1-hydroxy-3,7-dimethoxyxanthone, which presented an affinity energy of -8.8 kcal mol−1, greater than that observed for fluconazole (−8.3 kcal mol−1). The fatty acids interacted with the active site of the enzyme but presented energies ≥ −7.4 kcal mol−1. Compounds isolated from this species have pharmacokinetic potential for the development of pharmaceutical formulations. Willd family Brazil extracts chromatographymass chromatography mass chromatographyflame flame 36.55 3655 36 55 (36.5 g−1, g1 g g−1 , 1 3.66 366 3 66 (3.6 108.82 10882 108 82 (108.8 7.86 786 7 86 (7.8 41.11 4111 41 11 (41.1 dihomoγlinolenic dihomo γ linolenic 85.48 8548 85 48 (85.4 209.00 20900 209 00 (209.0 1hydroxy3,7dimethoxyxanthone 1hydroxy37dimethoxyxanthone hydroxydimethoxyxanthone hydroxy 3,7 dimethoxyxanthone identified Candida Sporothrix 9 h 641024 64 1024 64-102 mL1 mL mL−1 sterol14αdemethylase, sterol14αdemethylase sterolαdemethylase sterol 14 α demethylase, demethylase sterol-14-α-demethylase 1hydroxy3,7dimethoxyxanthone, dimethoxyxanthone, 8.8 88 8 -8. mol1 mol mol−1 −8.3 83 (−8. . mol−1) 74 4 −7. formulations 36.5 365 5 (36. g− 3.6 6 (3. 108.8 1088 10 (108. 7.8 78 (7. 41.1 411 (41. 85.4 854 (85. 209.0 2090 20 0 (209. 1hydroxy3 7dimethoxyxanthone 37 3, 64102 102 64-10 mL− αdemethylase 8. -8 mol− −8. (−8 −7 36. (36 3. (3 108. (108 7. (7 41. (41 85. (85 209. 2 (209 1hydroxy 6410 64-1 - −8 (− − ( (10 (4 (8 (20 641 64- (1 (2
3.
Improving understanding of the plastochron of determinate and indeterminate soybean cultivars
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Porta, Felipe S. D.
; Streck, Nereu A.
; Alberto, Cleber M.
; Silva, Michel R. da
; Tura, Enrico F.
; Uliana, Gilnei F.
; Tagliapietra, Eduardo L.
; Alves, Alexandre F.
; Winck, José E. M.
; Soares, Maurício F.
; Zanon, Alencar J.
.
Revista Brasileira de Engenharia Agrícola e Ambiental
- Métricas do periódico
RESUMO O objetivo deste estudo foi identificar as fases de plastocrono em cultivares de soja com hábito de crescimento determinado e indeterminado. Os experimentos foram conduzidos no período de 2010/2011 a 2022/2023 em quatro locais do estado do Rio Grande do Sul, Brasil, com 25 cultivares de soja com hábito de crescimento determinado (6) e indeterminado (19). Este estudo buscou dividir o plastocrono em fases durante o período de emissão de nós da soja. Em cultivares irrigadas de hábito de crescimento determinado, o plastocrono apresenta duas fases, a fase inicial de 59,7 °C dia nó-1 e a fase final de 65,7 °C dia nó-1. Em ambientes não irrigados, não há diferença entre as fases inicial e final do plastocrono. As cultivares de hábito de crescimento indeterminado com irrigação apresentam um plastocrono médio inicial e final de 64,1 °C dia nó-1, ao contrário da fase intermediária onde o plastocrono é de 58,5 °C dia nó-1. Em ambientes de sequeiro, as fases inicial e intermédia têm um valor médio de 60,6 °C dia nó-1, ao contrário da fase final com um plastocrono de 79,4 °C dia nó-1. A divisão do plastocrono em fases durante o período de emissão de nós na cultura da soja, proposta neste estudo, permite-nos melhorar o entendimento do desenvolvimento vegetativo de cultivares de soja de hábito de crescimento determinado e indeterminado e estabelecer bases ecofisiológicas para a construção de uma função cronológica. 20102011 2010 2011 2010/201 20222023 2022 2023 2022/202 Sul Brasil 2 6 (6 19. 19 . (19) 597 59 7 59, C nó1 nó 1 nó- 657 65 65, nó1. 1. irrigados 641 64 64, nó1, 1, 585 58 5 58, sequeiro 606 60 60, 794 79 4 79, permitenos permite nos cronológica 2010201 201 2010/20 2022202 202 2022/20 ( (19 201020 20 2010/2 202220 2022/2 (1 20102 2010/ 20222 2022/
ABSTRACT The aim of this study was to identify plastochron phases in soybean cultivars with determinate and indeterminate growth habits. Experiments were conducted from 2010/2011 to 2022/2023 at four locations in Rio Grande do Sul state (RS), Brazil, using 25 soybean cultivars with determinate (6) and indeterminate (19) growth habits. This study divided the plastochron into phases during the soybean node emission stage. In irrigated cultivars with a determinate growth habit, the plastochron has an early and late phase of 59.7 and 65.7 °C day node-1, respectively. In rainfed (non-irrigated) environments, there is no difference between the early and late plastochron phases. The early and late plastochrons of irrigated cultivars with an indeterminate growth habit are 64.1 °C day node-1, while the intermediate phase is 58.5 °C day node-1. In rainfed environments, the average value of the early and intermediate phases is 60.6 °C day node-1, with a late plastochron of 79.4 °C day node-1. Dividing the plastochron into phases during node emission, as proposed in this study, improves understanding of vegetative development in soybean cultivars with determinate and indeterminate growth habits and establishes ecophysiological foundations for chronological function construction. 20102011 2010 2011 2010/201 20222023 2022 2023 2022/202 RS, RS , (RS) Brazil 2 6 (6 19 (19 stage 597 59 7 59. 657 65 65. C node1, node1 1, 1 node-1 respectively nonirrigated non (non-irrigated environments 641 64 64. 585 58 5 58. node1. 1. 606 60 60. 794 79 4 79. construction 2010201 201 2010/20 2022202 202 2022/20 (RS ( (1 node- 201020 20 2010/2 202220 2022/2 20102 2010/ 20222 2022/
4.
Pioneer of Cardiothoracic Surgery - Luiz Tavares da Silva
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Lima, Ricardo de Carvalho
; Lima, Leonardo Pontual
; Escobar, Mozart Augusto Soares de
; Cabral, José Ricardo Lagreca de Sales
; Vieira, José Aécio Fernandes
; Maia, Guilherme Tavares da Silva
.
Brazilian Journal of Cardiovascular Surgery
- Métricas do periódico
ABSTRACT Luis Tavares revolutionized cardiac surgery, always bringing the most modern instruments and equipment from his travels to England - surgical forceps, scissors, scalpels, etc. He always insisted that he was not just a thoracic surgeon, for his work extended over a wide field and created three important cardiac surgery centers which promoted a great development of cardiology. He carried out the first open heart surgery (atrial septal defect) employing extracorporeal circulation and closure of a ventricular septal defect with deep surface hypothermia of north and northeast Brazil. He promoted an intense scientific exchange program between Recife and England, resulting in significant advances in medicine, and participated directly in the creation of HEMOPE), leading to radical changes and improvements in blood therapy in the whole country. The PROCAPE, inaugurated in 2006, was the result of the cardiac center created by him in early 1970 at Hospital Oswaldo Cruz and can be considered the second largest public-university cardiology center in Brazil. He is thus widely regarded as an outstanding name in medicine in the 20th century and one of the fathers of modern cardiac surgery in Brazil. forceps scissors scalpels etc surgeon atrial Brazil HEMOPE, HEMOPE , HEMOPE) country PROCAPE 2006 197 publicuniversity public university th 200 19 20 1 2
5.
Thinking Outside the Box: The Interventional Surgeon Box
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Maia, Adnaldo da Silveira
; Soares, Karlos Jennysson Sousa
; Alvarado, Pedro Esteban Ulloa
; Silva, Francisco Victor Alves da
; Mayer, Dayara Hoffmann
; Camacho, Mauro Henrique Batista
; Fonseca, José Honório de Almeida Palma da
.
Brazilian Journal of Cardiovascular Surgery
- Métricas do periódico
ABSTRACT Advances in treatment of structural heart disease have been disruptive to cardiovascular surgery, and there have been discussions about how to incorporate these technologies into the surgeons’ therapeutic arsenal. Transcatheter procedures, complex redo interventions, and endovascular aortic approaches are already practiced by cardiovascular surgeons in Brazil. The expansion of these techniques, coupled with recent changes in the country’s medical residency program in cardiovascular surgery, has led to an urgent need to acquire catheter-based skills. In this article, we discuss these aspects in the light of the reality of cardiovascular surgery training in Brazil. arsenal procedures interventions Brazil techniques countrys country s catheterbased catheter based skills article
6.
Non-invasive biomagnetic assessment of gastrointestinal motility in a loperamide-induced constipation model Noninvasive Non invasive loperamideinduced loperamide induced
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Stoppa, Erick Guilherme
; Soares, Guilherme Augusto
; Buranello, Lais Pereira
; Portela, Luiz Marcos Frediani
; Justulin, Luiz Antônio
; Américo, Madileine Francely
; Stasi, Luiz Claudio Di
; Miranda, José Ricardo de Arruda
.
Constipation is a disorder of the gastrointestinal (GI) and some of the main etiological mechanisms are directly related to changes in GI physiology. The capacity to carry out paired assessments and measure GI parameters under the influence of constipation is a relevant point in selecting a suitable methodology. We aimed to perform a non-invasive investigation of gastrointestinal motility in constipated rats using the alternating current biosusceptometry system (ACB). The animals were split into two groups: the pre-induction stage (CONTROL) and post-induction loperamide stage (LOP). We assessed GI motility parameters using the ACB system. Colon morphometric and immunohistochemical analyses were performed for biomarkers (C-kit) for interstitial cells of Cajal (ICC). Our results showed a significant increase in gastrointestinal transit in the LOP group in addition to a reduction in the dominant frequency of gastric contraction and an arrhythmic profile. A change in colonic contractility profiles was observed, indicating colonic dysmotility in the LOP group. We found a reduction in the number of biomarkers for intestinal cells of Cajal (ICC) in the LOP group. The ACB system can evaluate transit irregularities and their degrees of severity, while also supporting research into novel, safer, and more efficient treatments for constipation. (GI physiology methodology noninvasive non invasive ACB. . (ACB) groups preinduction pre induction CONTROL (CONTROL postinduction post LOP. (LOP) Ckit C kit (C-kit ICC. ICC profile observed (ICC severity novel safer (ACB (LOP
7.
Microporous Nitrogen-Doped Activated Biochars Derived from Corn: Use of Husk Waste and Urea for CO2 Capture NitrogenDoped Nitrogen Doped Corn CO
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Hisse, Danilo
; Bessa, Isabela A. A.
; Silva, Ludmila P. C.
; Silva, Aline F. M. da
; Araujo, Joyce R.
; Archanjo, Bráulio S.
; Soares, André V. H.
; Passos, Fabio B.
; Carneiro, José W. M.
; Santos, Thiago C. dos
; Ronconi, Célia M.
.
Journal of the Brazilian Chemical Society
- Métricas do periódico
The increase in anthropogenic activity over time has led to an exponential increase in greenhouse gas emissions, especially CO2. Proftable technologies for CO2 capture and separation are conspicuous, and porous biochars derived from biomass waste can be a useful solution. Herein, we produced activated nitrogen-doped biochars for CO2 capture from corn husk waste, urea and K2CO3, named N-Bio-X (X = 600, 700, and 800 °C). N-Bio-X exhibited microporosity and different nitrogen contents and thus played an important role in the adsorption of CO2. N-Bio-700 exhibited the highest CO2 adsorption capacity, fastest adsorption kinetics and excellent stability after multiple adsorption-desorption cycles. N-Bio-600 showed excellent CO2/N2 selectivity, induced by nitrogen sites, particularly pyridinic and graphitic nitrogen. The cost-effectiveness of the raw material, coupled with its high adsorption capacity, rapid kinetics, and stable properties, provided highly promising N-doped biochars for practical implementation in CO2 capture and separations in postcombustion processes. emissions CO conspicuous solution Herein nitrogendoped doped K2CO3 KCO K NBioX N Bio X 600 700 80 °C. C °C . °C) NBio700 NBio N-Bio-70 capacity adsorptiondesorption desorption cycles NBio600 N-Bio-60 CO2N2 CON N2 CO2/N selectivity sites costeffectiveness cost effectiveness material properties Ndoped processes K2CO 60 70 8 NBio70 N-Bio-7 NBio60 N-Bio-6 CO2N 6 7 NBio7 N-Bio- NBio6 N-Bio
8.
Histomorphometric comparison of two different preclinical models to evaluate the bone repair in grafted areas
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Lima, Julia Raulino
; Soares, Priscilla Barbosa Ferreira
; Pereira, Lucas de Sousa Goulart
; Perdomo, Leidys Rodríguez
; Pigossi, Suzane Cristina
; Oliveira, Guilherme José Pimentel Lopes de
.
Aim This study was performed to compare two different rat defect models (critical calvaria defects versus guided bone regeneration in the mandibular ramus) used to evaluate bone repair in grafted areas. Methods A total of 12 rats were allocated in two groups according the experimental model used to evaluate the bone repair in grafted areas: a critical sized-calvaria defect of 5 mm filled with bone graft (n=6) and a mandibular ramus filled with the bone graft associated with a Teflon dome-shaped membrane (n=6). Both groups were grafted with deproteinized bovine bone graft. After 60 days, the animals were euthanized and the samples obtained were submitted to histomorphometry analysis to evaluate the relative amount of bone, remaining bone substitute, and soft tissue within the grafted areas. Results No differences were observed between the preclinical models evaluated in relation to the amount of bone tissue formation (19.93 ± 4.55% in calvaria vs. 21.00 ± 8.20% in mandible). However, there was a smaller amount of soft tissue (43.20 ± 10.97% vs. 57.79 ± 7.61 %; p<0.01) and a greater amount of bone substitute remaining (35.80 ± 5.52% vs. 22.28 ± 4.36 %; p<0.05) in the grafted areas in the mandible compared to calvaria defect. Conclusion Preclinical models for the analysis of bone repair in grafted areas in the mandible and critical sized-calvaria defects showed different responses in relation to the amount of soft tissue and bone substitute remnants. 1 sizedcalvaria sized n=6 n6 n 6 (n=6 domeshaped dome shaped n=6. . days 19.93 1993 19 93 (19.9 455 4 55 4.55 vs 2100 21 00 21.0 820 8 20 8.20 mandible. mandible) However 43.20 4320 43 (43.2 1097 10 97 10.97 5779 57 79 57.7 761 7 61 7.6 % p<0.01 p001 p 0 01 35.80 3580 35 80 (35.8 552 52 5.52 2228 22 28 22.2 436 36 4.3 p<0.05 p005 05 remnants n= (n= 19.9 199 9 (19. 45 4.5 210 2 21. 82 8.2 43.2 432 (43. 109 10.9 577 57. 76 7. p<0.0 p00 35.8 358 3 (35. 5.5 222 22. 4. (n 19. (19 8. 43. (43 10. p<0. p0 35. (35 5. (1 (4 p<0 (3 ( p<
9.
Extended-height magnetic matrices to increase ultra - fine mineral particle recovery Extendedheight Extended height
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Ribeiro, José Pancrácio
; Ribeiro, Claudio Henrique Teixeira
; Soares, Anderson de Araujo
; Silva, Klaydison
; Hoffmann, Fernanda
.
REM - International Engineering Journal
- Métricas do periódico
Abstract In response to the challenge of recovering particles smaller than -0.45 microns in Mineral Processing, GAUSTEC® has significantly enhanced the Wet High Intensity Magnetic Separation (WHIMS) technology. By Extending the Height of the Magnetic Grooved Plate Matrix, a core component of Jones Magnetic Separator Technology, GAUSTEC® has raised the industry standards. For over fifty years, since the installation of the first Jones separator at VALE Cauê Mine in 1972, the standard matrix height has remained at 220 mm. The worldwide demand to reduce tailings prompted a team of researchers to look for new solutions to improve slimes recovery. After trying traditional methods and process variables it was decided to extend the matrices heights to increase the processing time inside the magnetic field. Evaluating four matrix heights, researchers found that doubling the standard height (2H) provided outstanding results. The 2H matrix recovered 2.5 times more mass from slimes compared to the standard 1H matrix height, in this study. 0.45 045 0 45 -0.4 Processing GAUSTEC WHIMS (WHIMS technology Matrix Technology standards years 1972 22 mm recovery field H (2H results 25 2 5 2. study 0.4 04 4 -0. 197 0. -0 19 - 1
10.
Multiplexed in-Series Macro-Bend Fiber Sensors for Personal Authentication Through Foot Recognition inSeries in Series MacroBend Macro Bend
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Girão, Natália Soares
; Lugarini, Diogo
; Arruda, Lúcia Valéria Ramos de
; Fabris, José Luís
; Muller, Marcia
.
Journal of Microwaves, Optoelectronics and Electromagnetic Applications
- Métricas do periódico
Abstract This work proposes a new tactile sensing system for biometric authentication. The system operates based on the response of multiplexed optical fiber macro-bend sensors to plantar pressure. The setup contains a set of 6 in-series sensors installed in holes drilled in a foot-shaped slab of Polymethyl Methacrylate. Each sensor is a loop of standard single-mode telecommunication fiber with 2.5 mm radius, encapsulated with silicone elastomer. The instrumentation required for interrogation includes only a broadband visible light source and a ultraviolet-visible spectrometer. Personal authentication is based on recognizing the unique pattern of pressures applied by the person’s foot in the metatarsal, outside of the foot arch, and heel areas monitored by the 6 sensors. The light spectrum transmitted by the set of multiplexed sensors in the spectral range from 400 nm to 800 nm carries information about the magnitude of the pressure applied on each sensor by the foot. The distribution of pressures exerted by different individuals alters the geometry of the macro-bends, resulting in spectral changes in transmitted light that allow personal authentication. Principal component analysis and support vector machine method are responsible for foot recognition. Data analysis returned hit rates greater than 85% for 6 different feet. macrobend macro bend inseries series footshaped shaped Methacrylate singlemode single mode 25 2 5 2. radius elastomer ultravioletvisible ultraviolet spectrometer persons person s metatarsal arch 40 80 macrobends, macrobends bends, bends macro-bends recognition 85 feet 4 8
11.
Complicações Pós-Operatórias em Pacientes Transplantados Renais em Centro de Transplantes do Sul de Minas Gerais PósOperatórias Pós Operatórias
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Bonando, Bruno Matida
; Freitas, Francisco Samuel Silva de
; Gobbi, Vinicius
; Silva, Beatriz Soares Fagundes e
; Vitorino, Luciano Magalhaes
; Torres, José Henrique Gomes
.
RESUMO Introdução: As complicações vasculares, urológicas e clínicas podem ocorrer em pacientes submetidos ao transplante renal. Diversos fatores podem influenciar a ocorrência desses eventos, frequentemente demandando reinternações hospitalares. Os serviços de transplantes geralmente se encontram em grandes centros urbanos. No sul do estado de Minas Gerais (MG), há uma cidade com população menor que 100 mil habitantes que dispõe de serviço de transplante. Não há disponível na literatura a prevalência de complicações pós-operatórias em pacientes operados em pequenos centros populacionais. Objetivos: O objetivo do estudo foi descrever as complicações pós-operatórias de pacientes submetidos ao transplante renal em serviço de uma pequena cidade do sul de MG. Métodos: Estudo retrospectivo e descritivo. Utilizaram-se os prontuários digitalizados de pacientes submetidos ao transplante renal (n = 55) no período de 2015 a 2020. Resultados: Dos 55 pacientes analisados, 28 (50,9%) estavam na faixa etária de 40 a 59 anos. A maioria era de indivíduos brancos [41 (74,5%)]. A principal etiologia da doença renal crônica foi de caráter indeterminado (40%). As complicações ocorreram em 61,8% dos pacientes, sendo a maioria de causa cirúrgica (52,9%), especialmente de origem vascular. Não houve diferença significativa na taxa de complicações em relação às variáveis sociodemográficas e clínicas (p > 0,05), exceto quanto à variável hemodiálise (p < 0,001). Conclusão: As complicações cirúrgicas vasculares apresentaram maior prevalência no pós-operatório de pacientes submetidos ao transplante renal em serviço situado em pequena cidade do sul de MG. Introdução eventos hospitalares urbanos MG, MG , (MG) 10 pósoperatórias pós operatórias populacionais Objetivos Métodos descritivo Utilizaramse Utilizaram n 201 2020 Resultados 5 analisados 2 50,9% 509 50 9 (50,9% 4 anos 41 [4 74,5%. 745 74,5% . 74 (74,5%)] 40%. 40% (40%) 618 61 8 61,8 52,9%, 529 52,9% 52 (52,9%) vascular p 0,05, 005 0,05 0 05 0,05) 0,001. 0001 0,001 001 0,001) Conclusão pósoperatório operatório (MG 1 20 202 50,9 (50,9 [ 74,5 7 (74,5%) (40% 6 61, 52,9 (52,9% 00 0,0 000 0,00 50, (50, 74, (74,5% (40 52, (52,9 0, (50 (74,5 (4 (52, (5 (74, ( (52 (74 (7
ABSTRACT Introduction: Vascular, urological and clinical complications can occur in patients undergoing kidney transplantation. Several factors can influence the occurrence of these events and often require hospital readmissions. Transplant services are generally located in large urban centers. In the south of the state of Minas Gerais (MG), there is a city with a population of less than hundred thousand inhabitants that offers a transplant service. The prevalence of postoperative complications in patients operated on in a small population center is not available in the literature. Objectives: The objective of the study was to describe the postoperative complications of patients who underwent kidney transplantation in a service in a small city in the south of MG. Methods: Retrospective and descriptive study. We used the digitalized medical records of patients who underwent kidney transplantation (n = 55) between 2015 and 2020. Results: Of the 55 patients analyzed, 28 (50.9%) were between 40-59 years old. The majority were white individuals (41 [74.5%]). The main etiology of chronic kidney disease was undetermined (40%). Complications occurred in 61.8% of patients, the majority of which were due to surgery (52.9%), especially of vascular origin. There was no significant difference in the rate of complications in relation to sociodemographic and clinical variables (p > 0.05), except for the hemodialysis variable (p < 0.001). Conclusion: Vascular surgical complications were more prevalent in the postoperative period of patients undergoing kidney transplantation in a service located in a small city in the south of MG. Introduction readmissions centers MG, MG , (MG) literature Objectives Methods n 201 2020 Results 5 analyzed 2 50.9% 509 50 9 (50.9% 4059 40 59 40-5 old 41 (4 74.5%. 745 74.5% . 74 [74.5%]) 40%. 40% (40%) 618 61 8 61.8 52.9%, 529 52.9% 52 (52.9%) origin p 0.05, 005 0.05 0 05 0.05) 0.001. 0001 0.001 001 0.001) Conclusion (MG 20 202 50.9 (50.9 405 4 40- ( 74.5 7 [74.5%] (40% 6 61. 52.9 (52.9% 00 0.0 000 0.00 50. (50. 74. [74.5% (40 52. (52.9 0. (50 [74.5 (52. (5 [74. (52 [74 [7 [
12.
Catálogo Taxonômico da Fauna do Brasil: Setting the baseline knowledge on the animal diversity in Brazil Brasil
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Boeger, Walter A.
; Valim, Michel P.
; Zaher, Hussam
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; Percequillo, Alexandre R.
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; Boll, Piter K.
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; Gregorin, Renato
; Machado, Renato J.P.
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; Kawada, Ricardo
; Dias, Ricardo M.
; Siewert, Ricardo
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; Caires, Rodrigo A.
; Salvador, Rodrigo B.
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; Sepulveda, Tatiana A.
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; Polizei, Thiago T.S.
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; Maia, Valéria C.
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; Costa, Valmir A.
; Amaral, Vanessa S. do
; Silva, Vera C.
; Wolff, Vera R. dos S.
; Slobodian, Verônica
; Silva, Vinícius B. da
; Espíndola, Vinicius C.
; Costa-Silva, Vinicius da
; Bertaco, Vinicius de A.
; Padula, Vinícius
; Ferreira, Vinicius S.
; Silva, Vitor C.P. da
; Piacentini, Vítor de Q.
; Sandoval-Gómez, Vivian E.
; Trevine, Vivian
; Sousa, Viviane R.
; Sant’Anna, Vivianne B. de
; Mathis, Wayne N.
; Souza, Wesley de O.
; Colombo, Wesley D.
; Tomaszewska, Wioletta
; Wosiacki, Wolmar B.
; Ovando, Ximena M.C.
; Leite, Yuri L.R.
.
ABSTRACT The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others. publications problem uptodate up date classifications context exception (CTFB http//fauna.jbrj.gov.br/, httpfaunajbrjgovbr http //fauna.jbrj.gov.br/ , jbrj gov br (http://fauna.jbrj.gov.br/) 2015 Brazil 80 specialists 1 2024 133691 133 691 133,69 125138 125 138 125,13 82.3%, 823 82 3 (82.3% 102000 102 000 102,00 7.69%, 769 7 69 (7.69% 11000 11 11,00 . 3,567 3567 567 (3,56 2,292 2292 2 292 (2,29 1,833 1833 833 (1,83 1,447 1447 447 (1,44 1000 1,00 831 (83 628 (62 606 (60 520 (52 50 users science health biology law anthropology education others http//fauna.jbrj.gov.br/ faunajbrjgovbr //fauna.jbrj.gov.br (http://fauna.jbrj.gov.br/ 201 8 202 13369 13 133,6 12513 12 125,1 82.3% (82.3 10200 10 00 102,0 7.69% 76 6 (7.69 1100 11,0 3,56 356 56 (3,5 2,29 229 29 (2,2 1,83 183 83 (1,8 1,44 144 44 (1,4 100 1,0 (8 62 (6 60 52 (5 5 http//fauna.jbrj.gov.br (http://fauna.jbrj.gov.br 20 1336 133, 1251 125, 82.3 (82. 1020 0 102, 7.69 (7.6 110 11, 3,5 35 (3, 2,2 22 (2, 1,8 18 (1, 1,4 14 4 ( 82. (82 7.6 (7. 3, (3 2, (2 (1 7. (7
13.
Evaluation of the non-metallic compounds on secondary refining – Ruhrstahl Heraeus (RH) process nonmetallic non metallic RH (RH
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Pereira, Paulo André
; Ruy, Demetrius Da Rós
; Tenório, Jorge Alberto Soares
; Carvalho, Cássio Santos de
; Oliveira, José Roberto de
; Souza, Raphael Mariano de
; Vieira, Estéfano Aparecido
.
REM - International Engineering Journal
- Métricas do periódico
Abstract The purpose of this study was to evaluate the cleanliness of Interstitial Free (IF) steels produced in a Ruhrstahl Heraeus (RH) vacuum degasser by determining the level of Al2O3 and Al-Ti-O inclusion types generated in three different process conditions: i) steel processed without thermal intervention; ii) steel processed with chemical heating and iii) steel processed with cooling by the scrap addition. The inclusion formation and remotion during these processes were analyzed. The influence of homogenization time was also studied. The content of inclusions was measured by a Scanning Electron Microscope (SEM) with an automated counting system denoted as Automated Steel Cleanliness Analysis Tool (ASCAT). This method can provide the size and composition of non-metallic compounds. The results have shown that the Ruhrstahl Heraeus (RH) process can improve the remotion efficiency of the inclusions, such as those larger than 2.5 mm, which is due to the molten steel circulating in RH vessel. For some inclusion types, higher concentrations were detected, but their size was smaller. For a heat where it was necessary to apply chemical heating using Al addition and O injection, there was detected a higher concentration of inclusions when compared with that cooled by scrap addition. In cooling heats, there is a strong generation of small and thin inclusions (<1.0 mm) that are very difficult to be removed from liquid steel. The size of the Al2O3(s) type is around eight times larger than Al-Ti type inclusions. IF (IF (RH AlO Al2O AlTiO Ti conditions i intervention ii iii analyzed studied SEM (SEM ASCAT. ASCAT . (ASCAT) nonmetallic non metallic compounds 25 2 5 2. mm vessel smaller injection heats <1.0 10 1 0 (<1. Al2O3s AlOs s Al2O3(s AlTi (ASCAT <1. (<1 <1 (< < (
14.
RCC - Roller-Compacted Concrete with hematite aggregate RollerCompacted Roller Compacted
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Carmo, João Bosco Moreira
; Lameiras, Fernando Soares
; Marques Filho, Jose
; Andrade, Walton Pacelli de
.
REM - International Engineering Journal
- Métricas do periódico
Abstract RCC using hematite as an aggregate has interesting characteristics for use in massive structures or structures for radiation shielding. In Brazil, there is a considerable amount of hematite ore tailings without practical use, which makes this material an environmental problem and a matter of public safety. Thus, the search for alternatives to use these tailings is a priority environmental concern. An RCC containment dam with hematite aggregate was constructed to protect the basin of the Barao de Cocais River, including the city of Barao de Cocais in the State of Minas Gerais in Brazil, from a possible rupture of the Sul Superior tailings dam in the Congo Soco iron mine. Approximately 150,000 m3 of RCC was deposited in three months. In this article, the results of the technological control tests during the construction of the containment are presented and compared with the results of the cores extracted after the construction, showing their coherence and strength performance compared with RCC using conventional aggregate. Also, studies related to the performance of radiation shielding of this RCC are presented. An attenuation of 10% of 1.6 MeV gamma radiation in relation to conventional concrete was observed. Brazil safety Thus concern River mine 150000 150 000 150,00 m months article Also 10 16 1 6 1. observed 15000 15 00 150,0 1500 0 150,
15.
Epidemiology and severity of traumatic dental injuries in permanent teeth: A 20-year retrospective study teeth 20year year 20 2
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Vieira, Walbert A.
; Pereira, Andrea C.
; Lazzari, Jaqueline
; Pecorari, Vanessa G.A.
; Gomes, Brenda P.F.A.
; Almeida, José Flávio A. de
; Ferraz, Caio C. R.
; Santos, Eduardo C. A.
; Vargas-Neto, Júlio
; de-Jesus-Soares, Adriana
.
Abstract This study aimed to assess the traumatic dental injuries (TDIs) in permanent dentition among patients who attended at the outpatient clinic of a Brazilian dental school, during the last 20 years, and to investigate factors associated with the severity of these injuries. Clinical records of patients who attended a specialized center for dental trauma care in Brazil presenting at least one TDI in a permanent tooth, between the years 2000 and 2019, were reviewed. The data recorded were sex, age, affected arch, etiology, number, and type of the teeth affected, and classification and severity of the TDIs. The diagnosis and classification of the TDIs were based on the guidelines of the International Association of Dental Traumatology (IADT). The severity of each patient's injuries was defined as mild, moderate, or severe. Descriptive statistics, chi-square and multinomial regression analyses were used to evaluate the results. The significance level was set at 5%. A total of 837 clinical records were included, totaling 2357 teeth. Males were more prevalent than females. The patients' age ranged from 5 to 71 years. The most common traumas were avulsion (n=512) and uncomplicated enamel-dentin fracture (n=488). Univariate analyses showed that there was a statistically significant association between age group (p=0.004), etiology (p=0.000) and number of teeth affected (p=0.000) with severity of dental trauma. In conclusion, TDIs that occurred in Piracicaba and region are epidemiologically similar to those found worldwide, and that more severe injuries are related to age range, etiology and number of teeth affected. (TDIs school 2 tooth 200 2019 reviewed sex arch IADT. IADT . (IADT) patient s mild moderate statistics chisquare chi square results 5% 83 included 235 females 7 n=512 n512 n 512 (n=512 enameldentin enamel dentin n=488. n488 n=488 488 (n=488) p=0.004, p0004 p p=0.004 , 0 004 (p=0.004) p=0.000 p0000 000 (p=0.000 conclusion worldwide range 201 (IADT 8 23 n=51 n51 51 (n=51 n48 n=48 48 (n=488 p000 p=0.00 00 (p=0.004 (p=0.00 n=5 n5 (n=5 n4 n=4 4 (n=48 p00 p=0.0 (p=0.0 n= (n= (n=4 p0 p=0. (p=0. (n p=0 (p=0 p= (p= (p
Resumo Esse estudo objetivou avaliar as injúrias dentárias traumáticas (IDTs) na dentição permanente entre os pacientes que compareceram ao ambulatório de uma faculdade de odontologia brasileira, durante os últimos 20 anos, e investigar fatores associados à severidade dessas lesões. Os registros clínicos dos pacientes que compareceram a um centro especializado de atendimento em traumatismo dentário no Brasil apresentando pelo menos uma IDT em dente permanente, entre os anos de 2000 e 2019, foram revisados. Os dados registrados foram sexo, idade, arco dental afetado, etiologia, número e tipo dos dentes afetados, e classificação e severidade das IDTs. O diagnóstico e a classificação das IDTs foram baseados nas diretrizes da Associação Internacional de Traumatologia Dentária (AITD). A gravidade das lesões de cada paciente foi definida como leve, moderada ou severa. Estatísticas descritivas, teste qui-quadrado e análises de regressão multinomial foram usadas para avaliar os resultados. O nível de significância foi fixado em 5%. Um total de 837 registros clínicos foi incluído, totalizando 2357 dentes. O sexo masculino foi mais prevalente que o feminino. A idade dos pacientes variou de 5 a 71 anos. Os traumas mais comuns foram avulsão (n=512) e fratura não-complicada do esmalte-dentina (n=488). As análises univariadas mostraram que houve associação estatisticamente significativa entre a faixa etária (p=0,004), etiologia (p=0,000) e número de dentes afetados (p=0,000) com a gravidade do traumatismo dentário. Em conclusão, as IDTs que ocorreram em Piracicaba e região são epidemiologicamente semelhantes aos encontrados em todo o mundo, e que lesões mais graves estão relacionadas à faixa etária, etiologia e número de dentes afetados. (IDTs brasileira 2 200 2019 revisados afetado AITD. AITD . (AITD) leve severa descritivas quiquadrado qui quadrado resultados 5% 83 incluído 235 feminino 7 n=512 n512 n 512 (n=512 nãocomplicada não complicada esmaltedentina esmalte dentina n=488. n488 n=488 488 (n=488) p=0,004, p0004 p p=0,004 , 0 004 (p=0,004) p=0,000 p0000 000 (p=0,000 conclusão mundo 201 (AITD 8 23 n=51 n51 51 (n=51 n48 n=48 48 (n=488 p000 p=0,00 00 (p=0,004 (p=0,00 n=5 n5 (n=5 n4 n=4 4 (n=48 p00 p=0,0 (p=0,0 n= (n= (n=4 p0 p=0, (p=0, (n p=0 (p=0 p= (p= (p
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