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au:Nascimento, Eduardo M.

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ANAEROBIC CO-DIGESTION OF SWINE AND LAYING HEN WASTE FOR BIOGAS GENERATION AND DIGESTATE QUALITY
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Pereira, Flávia E. de A.

; Rosa, André P.

; Borges, Eduardo S. M.

; Otenio, Marcelo H.

; Souza, Letícia D. de

; Nascimento, Juliana E. L. do

; Borges, Alisson C.

Engenharia Agrícola

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2023, Volume 43 N. spe elocation e20220124

Abstract: En | Text: En | PDF: En

ABSTRACT Anaerobic digestion (AD) stands out as a degradation pathway for the treatment of agro-industrial waste. This study aimed to evaluate the biogas production (Pb) from the co-digestion of swine (SW) and laying hen waste (LHW) under different temperature conditions (psychrophilic x mesophilic). The studies were carried out on a laboratory scale in anaerobic reactors (1.25 L) in a batch system for 60 days. Three mixtures in volumetric proportions (%) of 25/75 (P1), 50/50 (P2), and 75/25 (P3) (SW/LHW) were studied. The mixtures were characterized before and after AD in terms of TS, VS, and COD under temperatures of 18 and 36 °C, with Pb measured daily. Pb was higher at 36 °C for all mixtures compared to the psychrophilic condition (18 °C). Among the mixtures, the highest Pb value was observed for P3, reaching 0.34 and 0.60 m3 biogas kg−1 CODremoved for 18 and 36 °C, respectively. The digestate showed an increase in the contents of micro-and macronutrients for P1, P2, and P3 after AD, which indicates its use for agricultural purposes. The co-digestion of swine and laying hen waste is a promising proposal in terms of management and energy recovery of biogas, especially for mesophilic conditions in mixtures with a predominance of laying hen waste.

https://doi.org/10.1590/1809-4430-eng.agric.v43nepe20220124/2023

Air velocity spatial variability in open Compost-Bedded Pack Barn system with positive pressure ventilation
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OLIVEIRA, CARLOS EDUARDO A.

; TINÔCO, ILDA DE FÁTIMA F.

; DAMASCENO, FLÁVIO A.

; OLIVEIRA, VICTOR C. DE

; RODRIGUES, PEDRO HENRIQUE M.

; FERRAZ, GABRIEL A.S.

; SOUSA, FERNANDA C. DE

; ANDRADE, RAFAELLA R.

; NASCIMENTO, JOÃO ANTÔNIO C. DO

; SILVA, LEONARDO F. DA

Anais da Academia Brasileira de Ciências

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2023, Volume 95 Suppl. 1 elocation e20220415

Abstract: En | Text: En | PDF: En

Abstract In Compost-Bedded Pack Barn (CBP) systems, air velocity is linked with the thermal comfort of housed dairy cattle and bedding quality and, therefore, assessing ventilation efficiency is essential. In this context, the objective of this study was to evaluate and characterize dependence and spatial distribution of air velocity at the 1.5 m height (vair,M) and at bedding level (vair,B) in an open CBP system with positive pressure ventilation. The study was conducted in 2021, in a facility located in the Zona da Mata region, Minas Gerais, Brazil. The facility area was divided into a mesh composed of 55 equidistant points, where vair,M and vair,B data were collected in the morning (09:00 a.m.) and afternoon (03:00 p.m.) periods, during three weeks in Brazilian winter. Geostatistics techniques were used to assess dependence and spatial distribution. In both periods evaluated, there were a strong occurrence of spatial dependence and non-uniform vair,M and vair,B distributions. The vair,M and vair,B values were lower than recommended (1.8 m∙s–1) in more than 65.0% of the area. Adequate ventilation levels were observed only in the first 20.0 m of the facility, from Southeast to Northwest, because of the fan lines present.

https://doi.org/10.1590/0001-3765202320220415

Multiple evanescent white dot syndrome (MEWDS) following inactivated COVID-19 vaccination (Sinovac-CoronaVac)
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Tomishige, Kenzo S.

; Novais, Eduardo A.

; Finamor, Luciana P. dos S.

; Nascimento, Heloísa M. do

; Belfort Jr., Rubens

Arquivos Brasileiros de Oftalmologia

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apr 2022, Volume 85 N. 2 Pages 186 - 189

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Paciente feminina de 38 anos com queixa de fotopsias e perda visual indolor em seu olho direito 2 semanas após ter recebido a primeira dose de vacina de vírus inativo para COVID-19 (Sinovac/China National Pharmaceutical Group). Ao exame Oftalmológico, apresentava padrão granular macular, múltiplas lesões cinza-esbranquiçadas no polo posterior, associado à reação vítrea inflamatória. O diagnóstico de múltiplos pontos brancos evanescentes foi realizado após análise multimodal. A paciente foi tratada com corticosteroides sistêmico e evoluiu com melhora da acuidade visual e do quadro clínico.

ABSTRACT A 38-year-old woman presented with photopsias and progressive but painless loss of vision in her right eye. Of note, she had received the first dose of inactivated COVID-19 vaccine (Sinovac/China National Pharmaceutical Group) 2 weeks prior to the onset of symptoms. Ophthalmic evaluation revealed a wreath-like foveal pattern and multiple gray-white dots throughout the posterior pole associated with discrete vitreous inflammatory reaction. Multimodal imaging analysis confirmed a diagnosis of multiple evanescent white dot syndrome. The patient underwent treatment with corticosteroids and, over the following weeks, her visual acuity improved to standard pattern.

https://doi.org/10.5935/0004-2749.20220070

Vascular retinal findings after COVID-19 vaccination in 11 cases: a coincidence or consequence?
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Silva, Letícia S. C. da

; Finamor, Luciana P. S.

; Andrade, Gabriel C.

; Lima, Luiz H.

; Zett, Claudio

; Muccioli, Cristina

; Sarraf, Eduardo P.

; Marinho, Paula M.

; Peruchi, Julia

; Oliveira, Raiza D. de L.

; Giralt, Lena

; Charcan, Ivonne

; Fonollosa, Alex

; Diaz, Jose D.

; Davis, Janet L.

; Nascimento, Heloisa

; Belfort Jr, Rubens

Arquivos Brasileiros de Oftalmologia

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apr 2022, Volume 85 N. 2 Pages 158 - 165

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivos: o principal objetivo deste estudo foi descrever pacientes com achados vasculares retinianos temporalmente relacionados à vacinação contra COVID-19. Com maior notificação de possíveis eventos adversos similares, esperamos compreender a real dimensão e relevância do que foi apresentado. Métodos: Onze pacientes com queixas visuais após vacinação contra COVID-19 foram estudados. Os dados analisados foram: idade, gênero, tipo de vacinação, tempo de aparecimento de sintomas, achados sistêmicos, antecedentes pessoais, acuidade visual com melhor correção, biomicroscopia e imagem retiniana multimodal (retinografia colorida, red-free, SD-OCT, OCTA e angiofluoresceinografia). Os critérios de inclusão foram a presença de alterações oftalmológicas ocorridas dentro de 30 dias após a primeira ou segunda dose de qualquer vacina contra COVID-19. Resultados: Onze pacientes foram incluídos: 5 com oclusão arterial (45,4%), 4 com oclusão venosa (36,4%) e 2 (18,2%) com alterações não específicas vasculares sugestivas de isquemia retiniana como exsudatos algodonosos. A idade média dos pacientes foi de 57 anos (DP=16; com intervalo de 27 a 84 anos). A média de tempo de aparecimento de sintomas após a vacinação foi de 10 dias (DP=5,4; com intervalo de 3 a 16 dias). Nove dos onze pacientes eram do sexo feminino (81,8%). Fatores de risco sistêmicos foram observados em 36,4% dos pacientes. Dois pacientes tiveram sintomas neurológicos e visuais, com oclusão arterial. 36,4% dos pacientes tiveram infecção prévia por COVID-19 no último ano. Sete pacientes (63,6%) receberam a vacina ChAdOx1 nCoV-19 (AZD1222). Conclusões: nossos dados sugerem que eventos retinianos temporalmente relacionados à vacinação contra COVID-19 são possíveis, porém raros. A relação entre estes eventos pós-vacinais exigem futura atenção antes de maiores conclusões.

ABSTRACT Purpose: The primary purpose of this study was to assess vascular retinal findings temporally related to COVID-19 vaccination. With greater information regarding all possible future adverse events, we hope to understand the real dimension and relevance of what was presented. Methods: Eleven patients with visual complaints after COVID-19 vaccination were enrolled. Data on the following were included: age, sex, vaccine, time of symptom onset, systemic findings, medical history, best-corrected visual acuity, and ocular findings by slit-lamp biomicroscopy as well as multimodal retinal imaging (color fundus, red-free photography, spectral-domain optical coherence tomography, optical coherence tomography angiography, and fluorescein-angiography). Inclusion criteria were the presence of ophthalmologic signs within 30 days after the first or second dose of any COVID-19 vaccine. Results: Of 11 patients, five had arterial occlusion (45.4%), four had venous occlusion (36.4%), and two (18.2%) had nonspecific vascular alterations suggestive of retinal ischemia such as cotton-wool spots. The mean age was 57 (SD = 16; range: 27-84) years. The mean time of symptoms onset was 10 (SD = 5.4; range: 3-16) days. Nine patients were female (81.8%). Systemic risk factors were observed in 36.4% of patients. Two patients had both neurological and visual symptoms, with arterial occlusion. Overall, 36.4% patients had COVID-19 in the previous year. Seven patients (63.6%) received ChAdOx1 nCoV-19 (AZD1222) vaccine. Conclusions: Our data suggest that retinal events temporally related to COVID-19 vaccination are possible but are very rare. The relationship of these events with post-COVID-19 vaccination warrants further attention to derive a meaningful conclusion.

https://doi.org/10.5935/0004-2749.20220071

Two years of the COVID-19 pandemic: an anesthesiology perspective
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Schmidt, André P.

; Módolo, Norma S.P.

; de Amorim, Célio G.

; Simões, Cláudia M.

; Kraychete, Durval C.

; Joaquim, Eduardo H.G.

; Lineburger, Eric B.

; Papa, Fábio V.

; Fernandes, Fátima C.

; Mendes, Florentino F.

; Guimarães, Gabriel M.N.

; Barros, Guilherme A.M.

; Silva-Jr, João M.

; Lima, Laís H. Navarro e

; Azi, Liana M.T.A.

; Carvalho, Lorena I.M.

; Stefani, Luciana C.

; Garcia, Luis V.

; Carmona, Maria José C.

; Salgado Filho, Marcello F.

; Nascimento Junior, Paulo do

; Alves, Rodrigo L.

; Carvalho, Vanessa H.

; Quintão, Vinicius C.

; Carmona, Maria José C.

Brazilian Journal of Anesthesiology

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apr 2022, Volume 72 N. 2 Pages 165 - 168

Abstract: En | Text: En | PDF: En

https://doi.org/10.1016/j.bjane.2022.02.004

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
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Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

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dec 2021, Volume 36 N. 6 Pages 725 - 735

Abstract: En | Text: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

Posicionamento Brasileiro sobre o Uso da Multimodalidade de Imagens na Cardio-Oncologia – 2021
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Melo, Marcelo Dantas Tavares de

; Paiva, Marcelo Goulart

; Santos, Maria Verônica Câmara

; Rochitte, Carlos Eduardo

; Moreira, Valéria de Melo

; Saleh, Mohamed Hassan

; Brandão, Simone Cristina Soares

; Gallafrio, Claudia Cosentino

; Goldwasser, Daniel

; Gripp, Eliza de Almeida

; Piveta, Rafael Bonafim

; Silva, Tonnison Oliveira

; Santo, Thais Harada Campos Espirito

; Ferreira, Waldinai Pereira

; Salemi, Vera Maria Cury

; Cauduro, Sanderson A.

; Barberato, Silvio Henrique

; Lopes, Heloísa M. Christovam

; Pena, José Luiz Barros

; Rached, Heron Rhydan Saad

; Miglioranza, Marcelo Haertel

; Pinheiro, Aurélio Carvalho

; Vrandecic, Bárbara Athayde Linhares Martins

; Cruz, Cecilia Beatriz Bittencourt Viana

; Nomura, César Higa

; Cerbino, Fernanda Mello Erthal

; Costa, Isabela Bispo Santos da Silva

; Coelho Filho, Otavio Rizzi

; Carneiro, Adriano Camargo de Castro

; Burgos, Ursula Maria Moreira Costa

; Fernandes, Juliano Lara

; Uellendahl, Marly

; Calado, Eveline Barros

; Senra, Tiago

; Assunção, Bruna Leal

; Freire, Claudia Maria Vilas

; Martins, Cristiane Nunes

; Sawamura, Karen Saori Shiraishi

; Brito, Márcio Miranda

; Jardim, Maria Fernanda Silva

; Bernardes, Renata Junqueira Moll

; Diógenes, Tereza Cristina

; Vieira, Lucas de Oliveira

; Mesquita, Claudio Tinoco

; Lopes, Rafael Willain

; Segundo Neto, Elry Medeiros Vieira

; Rigo, Letícia

; Marin, Valeska Leite Siqueira

; Santos, Marcelo José

; Grossman, Gabriel Blacher

; Quagliato, Priscila Cestari

; Alcantara, Monica Luiza de

; Teodoro, José Aldo Ribeiro

; Albricker, Ana Cristina Lopes

; Barros, Fanilda Souto

; Amaral, Salomon Israel do

; Porto, Carmen Lúcia Lascasas

; Barros, Marcio Vinícius Lins

; Santos, Simone Nascimento dos

; Cantisano, Armando Luís

; Petisco, Ana Cláudia Gomes Pereira

; Barbosa, José Eduardo Martins

; Veloso, Orlando Carlos Glória

; Spina, Salvador

; Pignatelli, Ricardo

; Hajjar, Ludhmilla Abrahão

; Kalil Filho, Roberto

; Lopes, Marcelo Antônio Cartaxo Queiroga

; Vieira, Marcelo Luiz Campos

; Almeida, André Luiz Cerqueira

Arquivos Brasileiros de Cardiologia

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oct 2021, Volume 117 N. 4 Pages 845 - 909

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20200266 103 downloads

Exploratory analysis of trace elements in soils and plants affected by a gossan in the Semiarid
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Arévalo-Hernández, César O.

; Nascimento Junior, Adailton L.

; Queiroz, Arlicelio P.

; Gross, Eduardo

; Souza, Luciano da S.

Revista Brasileira de Engenharia Agrícola e Ambiental

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feb 2021, Volume 25 N. 2 Pages 139 - 145

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Elementos-traços em altas concentrações são um grande problema a nível mundial. O monitoramento de áreas naturais com alta concentração destes elementos, como solos sob influência de gossans, é importante, por existir pouca informação disponível. Objetivou-se neste trabalho avaliar as concentrações pseudototais e disponíveis de Fe, Mn, Pb e Zn no solo e seu acúmulo em plantas nativas e cultivadas na área sob influência de gossan no semiárido no Brasil. Amostras de solo (0-20 cm) foram coletadas no norte, sul e área central do gossan e em cinco transecções separadas em 1000 m. Determinou-se a concentração pseudototal (EPA3050A) e disponível (DTPA, Mehlich) de Fe, Mn, Pb e Zn. Nos mesmos pontos, amostras de plantas foram coletadas e processadas para determinação da concentração e fator de bioconcentração de Fe, Mn, Pb e Zn. Os solos sob influência do gossan apresentaram alta concentração de Pb e Zn (excedendo os valores de referência de qualidade), indicando que cuidados devem ser tomados nessas áreas para evitar qualquer risco para a comunidade local. As plantas apresentaram diferentes padrões de acumulação, com maior acúmulo de elementos-traço na parte aérea (Fe, Mn, Zn), enquanto o Pb foi acumulado principalmente nas raízes. Embora as concentrações no solo fossem altas, as plantas apresentaram, em geral, baixo fator de bioconcentração dos potenciais elementos tóxicos, com exceção do Zn, indicando que as condições do solo limitam sua disponibilidade.

ABSTRACT Trace elements in high concentrations are a huge problem worldwide. Monitoring of natural areas with a high concentration of these elements, such as soils under the influence of gossans, is important since there is little information available. This study aimed to evaluate the pseudo total and available concentrations of Fe, Mn, Pb, and Zn in the soil and its accumulation in native and cultivated plants in the area under the influence of gossan in the Semiarid region in Brazil. Soil samples (0-20 cm) were collected in the North, South, and center areas of the gossan and five transections separated by 1000 m. The pseudo total (EPA3050A) and available concentration (DTPA, Mehlich) of Fe, Mn, Pb, and Zn were determined. In the same points, plant samples were collected and processed to determine the concentration and bioconcentration factor of Fe, Mn, Pb, and Zn. Soils under the influence of the gossan had high Pb and Zn concentration (exceeding soil reference values), indicating that care should be taken in these areas to prevent any risk for the local community. Plants showed different accumulation patterns, with a higher accumulation of trace elements in the shoot (Fe, Mn, Zn), while Pb was primarily accumulated in the roots. Even though soil concentrations were high, plants showed in general, low bioconcentration factor of the potentially toxic elements, except for Zn, indicating that soil conditions limit their availability.

https://doi.org/10.1590/1807-1929/agriambi.v25n2p139-145 432 downloads

The psychiatric impact of COVID-19 pandemic on sexual health
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Paul, Gustavo M.

; Nascimento, Bruno C.

; Afif-Abdo, João

; Coutinho, Francisco R.

; Miranda, Eduardo P.

; Abdo, Carmita H.N.

Brazilian Journal of Psychiatry

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feb 2021, Volume 43 N. 1 Pages 109 - 109

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/1516-4446-2020-1197 696 downloads

10.

An analysis of intermunicipal consortia to provide waste services based on institutional collective action
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Fernandes, Antônio Sérgio Araújo

; Pinheiro, Lauro Santos

; Nascimento, Alex Bruno F. M. do

; Grin, Eduardo José

Revista de Administração Pública

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jun 2020, Volume 54 N. 3 Pages 501 - 523

Abstract: Pt En Es | Text: Pt En Es | PDF: Pt | PDF: En | PDF: Es

Resumo Este artigo analisa os fatores que influenciam os municípios em sua tomada de decisão sobre a prestação de serviços públicos de resíduos por meio de consórcios. Vários estudos abordaram essa questão pesquisando países ocidentais e desenvolvidos, mas há uma lacuna na literatura que explora o fenômeno em países em desenvolvimento como o Brasil. Este estudo, portanto, seleciona os governos locais no Brasil e analisa sua política de coleta e tratamento de resíduos, com foco na prestação de serviços públicos por meio de acordos cooperativos, particularmente consórcios intermunicipais. Os consórcios intermunicipais podem ser uma solução para os desafios políticos e gerenciais em torno do gerenciamento de resíduos sólidos e da prestação de outros serviços públicos. No entanto, ainda não está claro quais fatores influenciam os governos locais a adotar essa estratégia. O estudo utilizou uma abordagem transversal aplicada a uma amostra de 963 municípios e adotou a perspectiva da Ação Coletiva Institucional, identificando as características da comunidade, as características transacionais dos bens, e a estrutura das redes de política pública, que influenciam a tomada de decisão dos governos locais para cooperar. Os resultados têm implicações nas políticas públicas que adotam acordos de cooperação intermunicipais no Brasil.

Abstract This article analyzes the factors that affect local governments’ decision-making processes on whether to engage in cooperative agreements through intermunicipal consortia. Several studies have examined this issue in Western developed countries, but there is a gap in the literature regarding the phenomenon in the developing world. The research addresses this gap and observes the Brazilian local governments’ policies on waste services, focusing on cooperative agreements such as interlocal consortia. These arrangements may be a solution to the political and managerial challenges of providing public services in many areas, including waste collection, treatment, and disposal. However, it is still unclear what factors influence municipalities in their decision to cooperate. Based on cross-sectional research exploring 963 Brazilian municipalities and on the perspective of Institutional Collective Action, this study identified characteristics of communities, transaction characteristics of goods, and the structure of policy networks that influence the local governments in their decision to work cooperatively. The findings shed light on the field of public policies, particularly those carried out through intermunicipal consortia.

Resumen Este artículo analiza los factores que influyen en los municipios en su toma de decisiones sobre la prestación de servicios públicos de residuos por medio de consorcios. Varios estudios abordaron esa cuestión investigando países occidentales y desarrollados, pero existe una laguna en la literatura que explora el fenómeno en países en desarrollo como Brasil. Por lo tanto, este estudio selecciona los gobiernos locales de Brasil y analiza su política de recolección y tratamiento de residuos, con foco en la prestación de servicios públicos a través de acuerdos cooperativos, particularmente, consorcios intermunicipales. Estos pueden ser una solución para los desafíos políticos y gerenciales relacionados con la gestión de residuos sólidos y la prestación de otros servicios públicos. No obstante, aún no está claro qué factores influyen en los gobiernos locales para adoptar esa estrategia. El estudio utilizó un enfoque transversal aplicado a una muestra de 963 municipios y adoptó la perspectiva de la acción colectiva institucional, identificando las características de la comunidad, las características transaccionales de los bienes, y la estructura de las redes de políticas públicas, que influyen en la toma de decisiones de los gobiernos locales para cooperar. Los resultados tienen implicaciones en las políticas públicas que adoptan acuerdos de cooperación intermunicipales en Brasil.

https://doi.org/10.1590/0034-761220190237x 1269 downloads

11.

Co-Design of a GPS Antenna Low-Noise Amplifier Front-End Circuit
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Sakomura, Eduardo S.

; Boada, Diego F. M.

; Nascimento, Daniel C.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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dec 2019, Volume 18 N. 4 Pages 545 - 554

Abstract: En | Text: En | PDF: En

Abstract This paper presents a clear and fast design procedure for directly matched low noise active integrated microstrip antenna front end circuits. Initially, a theoretical analysis is given for the overall gain equivalence between traditional and directly matched antennas. Then, a detailed procedure is presented for the design and construction of a fully integrated GPS antenna. To validate the proposed procedure, a prototype was built and characterized by measuring the reflection coefficient, radiation pattern, noise figure and the active antenna overall gain. Additionally, a field test comparison was made between the manufactured prototype and a commercially available active antenna using the u-blox NEO-6M GPS receiver module. The prototype experimental and field test results showed excellent performance, thus validating the proposed co-design approach.

https://doi.org/10.1590/2179-10742019v18i41761 2082 downloads

12.

Crop residues activity against the free-living stages of small ruminant nematodes
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Salles, Hévila Oliveira

; Braga, Ana Carolina Linhares

; Nascimento, Danisvânia Ripardo

; Prado, Mayara Stephanny Melo

; Souza, Henrique Antunes de

; Oliveira, Eduardo Luiz de

; Vieira, Luiz da Silva

; Cavalcante, Antônio Cézar Rocha

; Lima, Adriano Rodrigues

; Teles Neto, Cláudio Santos

; Sousa, Ana Márjory Paiva

; Ribeiro, Regislane Pinto

; Pompeu, Roberto Cláudio Fernandes Franco

Revista Brasileira de Parasitologia Veterinária

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jul 2019, Volume 28 N. 3 Pages 528 - 532

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O efeito nematicida de diferentes materiais orgânicos foi avaliado, com o objetivo de desenvolver um tratamento alternativo não químico do solo para o controle dos estágios de vida livre de nematoides gastrintestinais de pequenos ruminantes. Os materiais orgânicos selecionados foram resíduos da indústria de suco de acerola, caju, uva, goiaba, mamão e abacaxi, além do resíduo de mamona da indústria de biodiesel. Os resultados da LC90 mostraram que o resíduo de abacaxi foi o mais eficiente inibidor do desenvolvimento larval, seguido pela mamona, uva, caju, acerola, goiaba e mamão. O resíduo de mamona também se mostrou uma boa fonte de nitrogênio, sendo usado em experimento em casa de vegetação para prevenir o desenvolvimento larval em fezes contaminadas, depositadas em vasos, contendo as gramíneas Brachiaria brizantha (var. Paiaguás) ou Megathyrsus maximus x M. infestum (var. Massai). O resíduo de mamona reduziu (85,04%) significativamente (P < 0,05) a contaminação no capim-Paiaguás (L3.dry massa-1), 17,35% no capim Massai (P> 0,05), e aumentou a produção de biomassa das gramíneas Massai (251,43%, P <0,05) e Paiaguás (109,19%, P> 0,05). Essa estratégia, chamada Econemat®, com bons resultados in vitro, mostra-se promissora nas pastagens aumentando a produção de fitomassa.

Abstract The nematicidal effect of different organic materials was evaluated in order to develop a non-chemical alternative soil treatment for control of the free-living stages of small ruminant gastrointestinal nematodes. The selected organic materials were residues from the juice industry of acerola, cashew, grape, guava, papaya and pineapple, as well as castor residue from the biodiesel industry. LC90 results showed that pineapple residue was the most efficient inhibitor of larval development, followed by castor, grape, cashew, acerola, guava and papaya. Castor residue was also a good source of nitrogen and was used in a greenhouse experiment to prevent larval development in contaminated goat faeces that was deposited in pots containing the grasses Brachiaria brizantha (var. Paiaguás) or Megathyrsus maximus x M. infestum (var. Massai). Castor residue caused a significant (P < 0.05) reduction (85.04%) in Paiaguás grass contamination (L3.dry mass-1) and a reduction of 17.35% in Massai grass contamination (P > 0.05), with an increase in the biomass production of Massai (251.43%, P < 0.05) and Paiaguás (109.19%, P > 0.05) grasses. This strategy, called Econemat®, with good results in vitro shows to be promising on pasture increasing phytomass production.

https://doi.org/10.1590/s1984-29612019024 665 downloads

13.

Compact Broadband High-Directivity Microstrip Directional Coupler
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Fabiani, Bernardo M.

; Sakomura, Eduardo S.

; Gripp, Tarcisio A. B.

; Nascimento, Daniel C.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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jun 2019, Volume 18 N. 2 Pages 286 - 292

Abstract: En | Text: En | PDF: En

Abstract The difference between phase velocities of the odd and even modes in inhomogeneous microstrip coupled lines makes the microstrip directional coupler a poor device regarding directivity. In this work, this issue is successfully compensated by the addition of a matching network at the ports of coupled lines. Furthermore, the proposed matching network, composed of a single segment of microstrip line, was extensively studied providing significant insights for the design of a compact and broadband device. As result, simple design equations based on coupled lines S-parameters are obtained, as well as the achievable operation limits of the proposed matching network. Finally, in order to validate the proposed design methodology, a compact microstrip directional coupler is constructed to operate with directivity higher than 30 dB and coupling of 17 dB over a 600-MHz bandwidth.

https://doi.org/10.1590/2179-10742019v18i21521 2065 downloads

14.

Tuberculosis of the central nervous system in cattle in Paraíba, Brazil
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Silveira, Aline M.

; Nascimento, Eduardo M.

; Konradt, Guilherme

; Miranda Neto, Eldinê G.

; Driemeier, David

; Galiza, Glauco José N.

; Dantas, Antonio F.M.

; Riet-Correa, Franklin

Pesquisa Veterinária Brasileira

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nov 2018, Volume 38 N. 11 Pages 2092 - 2098

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: Descrevem-se seis casos de tuberculose no sistema nervoso central (SNC) em bovinos, no semiárido da Paraíba. Foram revisados os laudos de um total de 851 necropsias de bovinos realizadas no período de 2003 a 2016. Destes, 73 (8,6%) foram diagnosticados com tuberculose e seis apresentavam lesões no SNC. Três casos ocorreram em bovinos de até dois anos de idade e três em bovinos adultos. Três bovinos apresentaram exclusivamente sinais nervosos, dois tinham sinais respiratórios e perda de peso e um não apresentava nenhum sinal clínico. Macroscopicamente, em cinco bovinos, havia espessamento das leptomeninges do cerebelo, medula espinhal, ponte, obex, colículos e córtex, principalmente, na região basilar encefálica próxima ao polígono de Willis. Em apenas um bovino houve a presença de tubérculo único no cerebelo. Microscopicamente observou-se moderada a acentuada meningite e encefalite granulomatosa. Cinco bovinos apresentaram lesões pulmonares e nos gânglios mediastínicos e três deles tinham lesões disseminadas em outros órgãos. Em todos os bovinos foram encontrados bacilos ácido-álcool resistentes intralesionais e todos tiveram marcação positiva na técnica de imuno-histoquímica com anticorpo policlonal anti-Mycobacterium tuberculosis. Conclui-se que a tuberculose do sistema nervoso central de bovinos ocorre de forma esporádica na Paraíba, principalmente em bovinos com lesões disseminadas em outros órgãos. Sugere-se que a disseminação do agente ocorre pela via hematógena, possivelmente através do polígono de Willis.

ABSTRACT: This paper describes six cases of tuberculosis in the central nervous system (CNS) of cattle in the state of Paraíba in northeastern Brazil. We reviewed the autopsy reports of 851 bovine necropsies performed from 2003 to 2016. Seventy-three (8.6%) cattle were diagnosed with tuberculosis and six showed lesions in the CNS. Three cases affected cattle up to two-year-old and other three affected adults. Three cattle presented exclusively nervous signs, two had respiratory signs and weight loss and one did not present any clinical signs. At necropsy, five cattle had thickening of the leptomeninges of the cerebellum, pons, obex, spinal cord and cortex, mainly, in the region near the brain basilar Willis´ circle. Another animal, presented a single focal lesion in the cerebellum. Microscopically we observed moderate to severe granulomatous meningitis and encephalitis. Five cattle presented lesions in the lungs and mediastinal lymph nodes and three of them had disseminated lesions in other organs. In all cattle acid-fast bacilli were observed in the lesions and marked positive for immunohistochemistry with polyclonal antibody anti-Mycobacterium tuberculosis. It is concluded that bovine tuberculosis of central nervous system occurs sporadically in Paraíba, in cattle of different ages, most of them with disseminate lesions in other organs. The location of the lesions suggests that the agent invaded the brain by hematogenous route through the circle of Willis.

https://doi.org/10.1590/1678-5150-pvb-5976 1529 downloads

15.

Poisoning by Senna obtusifolia in sheep
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Campos, Édipo M.

; Maia, Lisanka Â.

; Olinda, Roberio G.

; Nascimento, Eduardo M.

; Melo, Diego B.

; Dantas, Antônio Flávio M.

; Riet-Correa, Franklin

Pesquisa Veterinária Brasileira

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aug 2018, Volume 38 N. 8 Pages 1471 - 1474

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: Em um piquete altamente invadido por Senna obtusifolia, 10 de 60 ovelhas mostraram fraqueza muscular e 9 morreram após um período de manifestação clínica de 24-76 horas. As atividades séricas da creatina quinase foram aumentadas em todos os ovinos examinados. Foi observada degeneração segmentar e necrose polifásica muscular em músculos esqueléticos. Embora a planta seja uma erva daninha comum no Nordeste do Brasil, o envenenamento é raro, provavelmente porque os animais não o ingerem ou devido a variações de toxicidade.

ABSTRACT: In a paddock highly invaded by Senna obtusifolia 10 out of 60 sheep showed muscle weakness and 9 died after a clinical manifestation period of 24-76 hours. Serum activities of creatine kinase were increased in all sheep examined. Multifocal polyphasic muscle segmental degeneration and necrosis was observed in skeletal muscles. Although the plant is a common weed in northeastern Brazil, the poisoning is rare, probably because the animals do not ingest it or due to toxicity variations.

https://doi.org/10.1590/1678-5150-pvb-5530 618 downloads

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