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Resumen: El presente estudio tuvo como objetivo investigar la estructura dimensional de Brief-COPE durante la pandemia de COVID-19. Seiscientos sesenta y seis adultos de todas las regiones de Brasil participaron en esta investigación, en su mayoría mujeres (77 %), con edades entre 18 y 79 años (M = 36.70; DE = 13.12). Los participantes respondieron preguntas sociodemográficas y el Brief-COPE. Se realizaron análisis descriptivos y análisis factoriales confirmatorios. Se confirmó la estructura dimensional de primer orden, con 14 factores. La estructura de segundo orden no convergió y se propuso una nueva estructura de segundo orden basada en la correlación entre los factores de primer orden. El nuevo modelo propuesto presentó índices adecuados de ajuste a los datos. Estos resultados sugieren que la pandemia puede haber cambiado la forma en que los participantes perciben y relacionan las estrategias de afrontamiento.

Abstract: This study aimed to investigate the dimensional structure of Brief-COPE during the COVID-19 pandemic. Six hundred and sixty-six adults from all regions of Brazil, mostly women (77 %), aged between 18 and 79 years old (M = 36.70; SD = 13.12), took part in this research. They answered sociodemographic questions and the Brief-COPE. Descriptive and confirmatory factor analyzes were performed. The first order dimensional structure was confirmed with the 14 original factors. The second order structure did not converge, and a new second order structure was proposed based on the correlation indexes among the first order factors. The proposed new model presented adequate indexes of adjustment to the data. Such results suggest that the pandemic may have changed the way participants perceive and relate coping strategies.

Resumo: O presente estudo teve como objetivo investigar a estrutura dimensional do Brief-COPE durante a pandemia de COVID-19. Participaram desta pesquisa 666 adultos de todas as regiões do Brasil, majoritariamente mulheres (77 %), com idade entre 18 e 79 anos (M = 36,70; DP = 13,12). Estes responderam perguntas sociodemográficas e o Brief-COPE. Foram realizadas análises descritivas e Análises Fatoriais Confirmatórias. A estrutura dimensional de primeira ordem foi confirmada, com 14 fatores. A estrutura de segunda ordem não convergiu, sendo proposta uma nova estrutura de segunda ordem tomando como base a correlação entre os fatores de primeira ordem. O novo modelo proposto apresentou índices adequados de ajuste aos dados. Tais resultados sugerem que a pandemia pode ter alterado a forma como os participantes percebem e relacionam as estratégias de enfrentamento.

https://doi.org/10.22235/cp.v17i1.2476

Constant testing for Pestivirus in cell lines reveals different routes of contamination
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OLIVEIRA, TATIANA F.P. DE

; A.F. JÚNIOR, ANTÔNIO

; OLIVEIRA, ANAPOLINO M. DE

; CAMARGOS, MARCELO F.

; HEINEMANN, MARCOS B.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 1 elocation e20220309

Abstract: En | Text: En | PDF: En

Abstract Pestivirus can contaminate cell cultures and sera and cause serious problems that evolve the integrity of studies, confidence in diagnostic results, and safety of human and animal vaccines. Contaminations by Pestivirus and other viruses may occur at any time and regular assays of monitoring in cell cultures and your supplies are necessary. This study aimed to analyze the phylogeny of Pestivirus detected from cell cultures, calf serum, and standard strains of three laboratories in Brazil that carry out frequent tests for the monitoring of cellular contaminations. These samples were submitted to phylogenetic analysis to understand the genetic relationship between contaminants occurring in these facilities. As result, the Pestivirus found in samples were Bovine viral diarrhea virus (BVDV-1 and BVDV-2), Hobi-like viruses (often named BVDV-3), and Classical swine fever virus (CSFV), and the phylogenetic analysis help us to infer at three possible routes of contamination in this work.

https://doi.org/10.1590/0001-37652023202200309

Posicionamento sobre Doença Isquêmica do Coração – A Mulher no Centro do Cuidado – 2023
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Oliveira, Gláucia Maria Moraes de

; Almeida, Maria Cristina Costa de

; Rassi, Daniela do Carmo

; Bragança, Érika Olivier Vilela

; Moura, Lidia Zytynski

; Arrais, Magaly

; Campos, Milena dos Santos Barros

; Lemke, Viviana Guzzo

; Avila, Walkiria Samuel

; Lucena, Alexandre Jorge Gomes de

; Almeida, André Luiz Cerqueira de

; Brandão, Andréa Araujo

; Ferreira, Andrea Dumsch de Aragon

; Biolo, Andreia

; Macedo, Ariane Vieira Scarlatelli

; Falcão, Breno de Alencar Araripe

; Polanczyk, Carisi Anne

; Lantieri, Carla Janice Baister

; Marques-Santos, Celi

; Freire, Claudia Maria Vilas

; Pellegrini, Denise

; Alexandre, Elizabeth Regina Giunco

; Braga, Fabiana Goulart Marcondes

; Oliveira, Fabiana Michelle Feitosa de

; Cintra, Fatima Dumas

; Costa, Isabela Bispo Santos da Silva

; Silva, José Sérgio Nascimento

; Carreira, Lara Terra F.

; Magalhães, Lucelia Batista Neves Cunha

; Matos, Luciana Diniz Nagem Janot de

; Assad, Marcelo Heitor Vieira

; Barbosa, Marcia M.

; Silva, Marconi Gomes da

; Rivera, Maria Alayde Mendonça

; Izar, Maria Cristina de Oliveira

; Costa, Maria Elizabeth Navegantes Caetano

; Paiva, Maria Sanali Moura de Oliveira

; Castro, Marildes Luiza de

; Uellendahl, Marly

; Oliveira Junior, Mucio Tavares de

; Souza, Olga Ferreira de

; Costa, Ricardo Alves da

; Coutinho, Ricardo Quental

; Silva, Sheyla Cristina Tonheiro Ferro da

; Martins, Sílvia Marinho

; Brandão, Simone Cristina Soares

; Buglia, Susimeire

; Barbosa, Tatiana Maia Jorge de Ulhôa

; Nascimento, Thais Aguiar do

; Vieira, Thais

; Campagnucci, Valquíria Pelisser

; Chagas, Antonio Carlos Palandri

Arquivos Brasileiros de Cardiologia

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2023, Volume 120 N. 7 elocation e20230303

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

https://doi.org/10.36660/abc.20230303

HLA haplotypes and differential regional mortality caused by COVID-19 in Brazil: an ecological study based on a large bone marrow donor bank dataset
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BOQUETT, JULIANO ANDRÉ

; VIANNA, FERNANDA S.L.

; FAGUNDES, NELSON J.R.

; SCHROEDER, LUCAS

; BARBIAN, MARCIA

; ZAGONEL-OLIVEIRA, MARCELO

; ANDREIS, TIAGO F.

; PÔRTO, LUIS CRISTÓVÃO M.S.

; CHIES, JOSÉ ARTUR B.

; SCHULER-FACCINI, LAVINIA

; ASHTON-PROLLA, PATRICIA

; ROSSET, CLÉVIA

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 3 elocation e20220801

Abstract: En | Text: En | PDF: En

Abstract The coronavirus disease 2019 (COVID-19) mortality rates varied among the states of Brazil during the course of the pandemics. The human leukocyte antigen (HLA) is a critical component of the antigen presentation pathway. Individuals with different HLA genotypes may trigger different immune responses against pathogens, which could culminate in different COVID-19 responses. HLA genotypes are variable, especially in the highly admixed Brazilian population. In this ecological study, we aimed to investigate the correlation between HLA haplotypes and the different regional distribution of COVID-19 mortality in Brazil. HLA data was obtained from 4,148,713 individuals registered in The Brazilian Voluntary Bone Marrow Donors Registry. COVID-19 data was retrieved from epidemiological bulletins issued by State Health Secretariats via Brazil’s Ministry of Health from February/2020 to July/2022. We found a positive significant correlation between the HLA-A*01~B*08~DRB1*03 haplotype and COVID-19 mortality rates when we analyzed data from 26 states and the Federal District. This result indicates that the HLA-A*01~B*08~DRB1*03 haplotype may represent an additional risk factor for dying due to COVID-19. This haplotype should be further studied in other populations for a better understanding of the variation in COVID-19 outcomes across the world.

https://doi.org/10.1590/0001-3765202320220801

Effects of corn straw on meat characteristics of lambs in the Brazilian semi-arid region
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OLIVEIRA, ANA B. DE

; PAULA, TALITA A. DE

; SOUSA, WANDRICK HAUSS DE

; FERREIRA, MARCELO A.

; CARTAXO, FELIPE Q.

; CEZAR, MARCÍLIO F.

; NEVES, MARIA LUCIANA M. WANDERLEY

; BARRETO, LÍGIA MARIA G.

; OLIVEIRA, FLÁVIO G. DE

; GOMES, RAYANE N.

; VÉRAS, ANTONIA SHERLÂNEA C.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 4 elocation e20200395

Abstract: En | Text: En | PDF: En

Abstract The present study aimed to evaluate the influence of increasing levels of corn straw replacement of sorghum silage on average daily gain, loin eye area, subcutaneous fat thickness, weight of commercial cuts, leg tissue composition, and physico-chemical characteristics of the meat from F1 Santa Inês × Dorper lambs maintained in a feedlot system. Treatments consisted of 0, 33, 66 and 100% corn straw replacement of sorghum silage. There were thirty-six 150-day-old male lambs. Corn straw replacement of sorghum silage in lamb feed reduced the average daily gain and weight of the ribs, besides promoting a quadratic influence on leg fat content. However, there was no influence on commercial carcass cuts, leg muscle index, leg tissue composition, and physico-chemical characteristics of the meat. Thus, corn straw can be used as alternative feedstuff for sheep rations to improve the production of high-quality sheep meat in semi-arid regions.

https://doi.org/10.1590/0001-3765202320200395

Long-term Ecological Research: Chasing fashions or being prepared for fashion changes?
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BERGALLO, HELENA G.

; ROSA, CLARISSA

; OCHOA, ANA C.

; MANZATTO, ANGELO GILBERTO

; GUIMARAES, ARETHA F.

; BANHOS, AUREO

; CASTILHO, CAROLINA V.

; BARROS, CLAUDIA F.

; NORRIS, DARREN

; DRUCKER, DEBORA P.

; RODRIGUES, DOMINGOS J.

; BACCARO, FABRICIO B.

; LOURENÇO, IGOR H.

; ZUANON, JANSEN

; STEGMANN, LIS F.

; ANJOS, MARCELO R.

; SILVEIRA, MARCOS

; ARAÚJO, PATRICIA S.G.

; BOBROWIEC, PAULO E.D.

; FADINI, RODRIGO

; NECKEL-OLIVEIRA, SELVINO

; EMILIO, THAISE

; SANTORELLI JUNIOR, SERGIO

; MAGNUSSON, WILLIAM E.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 3 elocation e20230051

Abstract: En | Text: En | PDF: En

Abstract Long-term-ecological-research (LTER) faces many challenges, including the difficulty of obtaining long-term funding, changes in research questions and sampling designs, keeping researchers collecting standardized data for many years, impediments to interactions with local people, and the difficulty of integrating the needs of local decision makers with “big science”. These issues result in a lack of universally accepted guidelines as to how research should be done and integrated among LTER sites. Here we discuss how the RAPELD (standardized field infrastructure system), can help deal with these issues as a complementary technique in LTER studies, allowing comparisons across landscapes and ecosystems and reducing sampling costs. RAPELD uses local surveys to understand broad spatial and temporal patterns while enhancing decision-making and training of researchers, local indigenous groups and traditional communities. Sampling of ecological data can be carried out by different researchers through standardized protocols, resulting in spatial data that can be used to answer temporal questions, and allow new questions to be investigated. Results can also be integrated into existing biodiversity networks. Integrated systems are the most efficient way to save resources, maximize results, and accumulate information that can be used in the face of the unknown unknowns upon which our future depends.

https://doi.org/10.1590/0001-3765202320230051

Uso de estufim e de AIB para o enraizamento de miniestacas de Eucalyptus urophylla S. T. Blake × Eucalyptus pellita F. Muell
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Rocha, Fabiana Miranda

; Titon, Miranda

; Fernandes, Sula Janaína de Oliveira

; Santos, Paulo Henrique Rodrigues dos

; Laia, Marcelo Luiz de

; Pena, Claudilene Aparecida Alves

Ciência Florestal

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sep 2022, Volume 32 N. 3 Pages 1460 - 1478

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

Resumo O gênero Eucalyptus possui grande importância em plantios florestais. No entanto, algumas espécies e clones deste gênero apresentam dificuldades no processo de produção de mudas pelo enraizamento de estacas. Algumas alternativas estão sendo utilizadas para contornar a recalcitrância ao enraizamento, como o uso de reguladores de crescimento e a utilização de estufins no minijardim clonal. Este trabalho teve como objetivo avaliar o efeito do tempo de permanência das minicepas sob o estufim e de diferentes concentrações de ácido indol-3-butírico (AIB) no enraizamento de miniestacas de um clone híbrido de Eucalyptus urophylla × Eucalyptus pellita. Foram testadas quatro concentrações de AIB e um tratamento-controle (0, 1.000, 2.000, 4.000 e 8.000 mg L-1) e dois tempos sob estufim (40 e 70 dias). Mudas produzidas com maiores concentrações do AIB apresentaram altura média e diâmetro do coleto superiores àquelas sem a presença da auxina na saída da casa de vegetação. A massa seca da parte aérea apresentou maiores valores para o menor tempo de estufim na saída da casa de vegetação. Maiores concentrações de AIB proporcionaram o aumento do número de miniestacas enraizadas na saída da casa de vegetação e da área de pleno sol. O uso de 8.000 mg L-1 de AIB aumentou o percentual de raízes consideradas ótimas, nos dois tempos de estufim testados, e reduziu a formação de calos, mostrando-se eficiente para o enraizamento em termos gerais, alcançando 95 % na saída da área de pleno sol. O tempo de uso do estufim no minijardim clonal não influenciou significativamente a produção de mudas de Eucalyptus urophylla × Eucalyptus pellita dentro das condições analisadas.

Abstract The genus Eucalyptus has great importance in forest plantations. However, some species and clones of this genus present difficulties in the seedling production process by the rooting cuttings. Some alternatives have been used to overcome the rooting recalcitrance, such as the use of growth regulators and the use of mini-tunnels in the clonal mini-garden. The objective of this work was to evaluate the effect of the permanence time of mini-ceps under the mini-tunnel and of different concentrations of indole-3-butyric acid (IBA) on the rooting of mini-cuttings of a hybrid clone of Eucalyptus urophylla × Eucalyptus pellita. Four IBA concentrations and a control treatment (0, 1.000, 2.000, 4.000 and 8.000 mg L-1) and two times in a mini-tunnel (40 and 70 days) were tested. The seedlings produced with higher concentrations of AIB presented mean height and root collar diameter greater than those without the presence of auxin at the exit of the greenhouse. The dry mass of the aerial part presented higher values for the shortest period of mini-tunnel at the exit of the greenhouse. Higher IBA concentrations provided an increase in the number of mini-cuttings rooted at the exit of the greenhouse and area under full sun. The use of 8.000 mg L-1 of IBA increased the percentage of roots considered optimal, in the two tested mini-tunnel times, and reduced the callus formation, being efficient for rooting in general terms, reaching 95 % at the exit of the area under full sun. The time of use of the greenhouse in the clonal mini-garden did not significantly influence the production of Eucalyptus urophylla × Eucalyptus pellita seedlings under the conditions analyzed.

https://doi.org/10.5902/1980509865873

Impacto da Primeira Onda da Pandemia de COVID-19 na Cirurgia Cardiovascular no Brasil: Análise de um Centro Terciário de Referência
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Lisboa, Luiz Augusto

; Mejia, Omar Asdrúbal Vilca

; Arita, Elisandra Trevisan

; Guerreiro, Gustavo Pampolha

; Silveira, Lucas Molinari Veloso da

; Brandão, Carlos Manuel de Almeida

; Dias, Ricardo Ribeiro

; Dallan, Luís Roberto Palma

; Miana, Leonardo

; Caneo, Luiz F.

; Jatene, Marcelo Biscegli

; Dallan, Luís Alberto Oliveira

; Jatene, Fabio Biscegli

Arquivos Brasileiros de Cardiologia

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mar 2022, Volume 118 N. 3 Pages 663 - 666

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

https://doi.org/10.36660/abc.20210235

Diretriz de Miocardites da Sociedade Brasileira de Cardiologia – 2022
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Montera, Marcelo Westerlund

; Marcondes-Braga, Fabiana G.

; Simões, Marcus Vinícius

; Moura, Lídia Ana Zytynski

; Fernandes, Fabio

; Mangine, Sandrigo

; Oliveira Júnior, Amarino Carvalho de

; Souza, Aurea Lucia Alves de Azevedo Grippa de

; Ianni, Bárbara Maria

; Rochitte, Carlos Eduardo

; Mesquita, Claudio Tinoco

; de Azevedo Filho, Clerio F.

; Freitas, Dhayn Cassi de Almeida

; Melo, Dirceu Thiago Pessoa de

; Bocchi, Edimar Alcides

; Horowitz, Estela Suzana Kleiman

; Mesquita, Evandro Tinoco

; Oliveira, Guilherme H.

; Villacorta, Humberto

; Rossi Neto, João Manoel

; Barbosa, João Marcos Bemfica

; Figueiredo Neto, José Albuquerque de

; Luiz, Louise Freire

; Hajjar, Ludhmila Abrahão

; Beck-da-Silva, Luis

; Campos, Luiz Antonio de Almeida

; Danzmann, Luiz Cláudio

; Bittencourt, Marcelo Imbroinise

; Garcia, Marcelo Iorio

; Avila, Monica Samuel

; Clausell, Nadine Oliveira

; Oliveira Jr, Nilson Araujo de

; Silvestre, Odilson Marcos

; Souza, Olga Ferreira de

; Mourilhe-Rocha, Ricardo

; Kalil Filho, Roberto

; Al-Kindi, Sadeer G.

; Rassi, Salvador

; Alves, Silvia Marinho Martins

; Ferreira, Silvia Moreira Ayub

; Rizk, Stéphanie Itala

; Mattos, Tiago Azevedo Costa

; Barzilai, Vitor

; Martins, Wolney de Andrade

; Schultheiss, Heinz-Peter

Arquivos Brasileiros de Cardiologia

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2022, Volume 119 N. 1 Pages 143 - 211

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

https://doi.org/10.36660/abc.20220412

10.

Updating on Bone and Soft Tissue Sarcomas Staging
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Guedes, Alex

; Oliveira, Marcelo Bragança dos Reis

; Costa, Flávia Martins

; Melo, Adelina Sanches de

Revista Brasileira de Ortopedia

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aug 2021, Volume 56 N. 4 Pages 411 - 418

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

Resumo Os sarcomas ósseos e das partes moles consistem em grupo heterogêneo de neoplasias malignas de origem mesenquimal que podem ocorrer em qualquer faixa etária. O estadiamento preciso destas lesões determina as melhores estratégias terapêuticas e estimativas de prognóstico. Dois sistemas de estadiamento são os mais frequentemente empregados no manejo destas neoplasias: o sistema proposto pelo grupo da Universidade da Flórida, liderado pelo Dr. William F. Enneking (1980), adotado pela Musculoskeletal Tumor Society (MSTS) e o sistema desenvolvido pela American Joint Committee on Cancer (AJCC) (1977) que se encontra em sua 8a edição (2017). O presente artigo busca atualizar o leitor a respeito do estadiamento dos sarcomas ósseos e das partes moles que acometem o sistema musculoesquelético.

Abstract Bone and soft tissue sarcomas consist of a heterogeneous group of malignant tumors of mesenchymal origin that can affect patients from any age. The precise staging of these lesions determines the best therapeutic strategies and prognosis estimates. Two staging systems are the most frequently used: the system proposed by the University of Florida group, led by Dr. William F. Enneking (1980) and adopted by the Musculoskeletal Tumor Society (MSTS), and the system developed by the American Joint Committee on Cancer (AJCC) (1977), currently in its 8th edition (2017). This paper updates the reader on the staging of bone and soft tissue sarcomas affecting the musculoskeletal system.

https://doi.org/10.1055/s-0040-1710331 83 downloads

11.

Impact of soft tissue graft on the preservation of compromised sockets
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Segnini, Bruno

; Borges-Filho, Fausto F. F.

; G.Nicoli, Lélis

; Gonçalves, Marcelo

; Marcantonio, Cláudio

; Oliveira, Guilherme J.P.L.

; Marcantonio, Elcio Jr.

Acta Odontológica Latinoamericana

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jun 2021, Volume 34 N. 2 Pages 119 - 126

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

RESUMO

ABSTRACT The aim of this pilot study was to evaluate the impact of the association of free gingival graft (FGG) or collagen-matrix xenograft (CMX) to deproteinized bovine bone graft (DBBG) on the preservation of post-extraction sockets with facial-wall defects. Sixteen patients who presented a maxillary tooth with a facial bone defect and indication of extraction were selected. After the surgical procedure, all the post-extraction sockets were filled with DBBG and covered with a collagen membrane. The cervical part of the socket was then sealed with either FGG or CMX. Clinical and tomographic analyses were performed at baseline and 4 months after the grafting procedure. The FGG sockets showed higher values for the width of the bone ridge than the CMX sockets at 4 months. There was no difference regarding biopsy composition. In conclusion, regardless of the type of soft tissue graft used, socket preservation with DBBG at sites presenting facial bone defects enabled implant placement without further guided bone regeneration, whether the sockets were sealed with FGG or CMX.

197 downloads

12.

Atualização de Tópicos Emergentes da Diretriz Brasileira de Insuficiência Cardíaca – 2021
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Marcondes-Braga, Fabiana G.

; Moura, Lídia Ana Zytynski

; Issa, Victor Sarli

; Vieira, Jefferson Luis

; Rohde, Luis Eduardo

; Simões, Marcus Vinícius

; Fernandes-Silva, Miguel Morita

; Rassi, Salvador

; Alves, Silvia Marinho Martins

; Albuquerque, Denilson Campos de

; Almeida, Dirceu Rodrigues de

; Bocchi, Edimar Alcides

; Ramires, Felix José Alvarez

; Bacal, Fernando

; Rossi Neto, João Manoel

; Danzmann, Luiz Claudio

; Montera, Marcelo Westerlund

; Oliveira Junior, Mucio Tavares de

; Clausell, Nadine

; Silvestre, Odilson Marcos

; Bestetti, Reinaldo Bulgarelli

; Bernadez-Pereira, Sabrina

; Freitas Jr, Aguinaldo F.

; Biolo, Andréia

; Barretto, Antonio Carlos Pereira

; Jorge, Antônio José Lagoeiro

; Biselli, Bruno

; Montenegro, Carlos Eduardo Lucena

; Santos Júnior, Edval Gomes dos

; Figueiredo, Estêvão Lanna

; Fernandes, Fábio

; Silveira, Fabio Serra

; Atik, Fernando Antibas

; Brito, Flávio de Souza

; Souza, Germano Emílio Conceição

; Ribeiro, Gustavo Calado de Aguiar

; Villacorta, Humberto

; Souza Neto, João David de

; Goldraich, Livia Adams

; Beck-da-Silva, Luís

; Canesin, Manoel Fernandes

; Bittencourt, Marcelo Imbroinise

; Bonatto, Marcely Gimenes

; Moreira, Maria da Consolação Vieira

; Avila, Mônica Samuel

; Coelho Filho, Otavio Rizzi

; Schwartzmann, Pedro Vellosa

; Mourilhe-Rocha, Ricardo

; Mangini, Sandrigo

; Ferreira, Silvia Moreira Ayub

; Figueiredo Neto, José Albuquerque de

; Mesquita, Evandro Tinoco

Arquivos Brasileiros de Cardiologia

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jun 2021, Volume 116 N. 6 Pages 1174 - 1212

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

https://doi.org/10.36660/abc.20210367 3168 downloads

13.

INCORPORAÇÃO DE RODAMINA B EM MEMBRANA DE POLIAMIDA PELO MÉTODO DA ADSORÇÃO
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Sousa, Kalil Z. R. de

; Faria, Emerson H. de

; Marçal, Liziane

; Ciuffi, Katia J.

; Ricci, Emiliane G.

; Rocha, Lucas A.

; Nassar, Eduardo J.

; Silva, Jorge V. L.

; Oliveira, Marcelo F.

; Maia, Izaque A.

Química Nova

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feb 2021, Volume 44 N. 2 Pages 154 - 160

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

We have incorporated rhodamine into polyamide membranes by additive manufacture selective laser sintering technology. Incorporation into 0.5 cm2 membranes was conducted at different pH values and constant temperature of 25 oC. The amounts of incorporated dye were determined by a calibration curve, and analyses showed rhodamine incorporation in the order of 10-6 mol L-1. The absorption spectra of the solutions and membranes after rhodamine incorporation showed maximum absorption at 553 nm and a shoulder at 522 nm, which indicated that a dimer was formed. Photoluminescence presented maximum emission at 575 nm for the sample incorporated with rhodamine in acid pH. The membranes that were treated with acid presented shorter adsorption time and demanded 180 min to reach equilibrium, whereas the non-treated membrane and the membranes that were treated with base required 1440 min to reach equilibrium. Polyamide membrane has proven to be an excellent material for the incorporation of dyes and compounds for application as luminescent sensors.

https://doi.org/10.21577/0100-4042.20170670 134 downloads

14.

Monitoring Glyphosate- and Chlorimuron- resistant Conyza spp. Populations in Brazil
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MENDES, RAFAEL R.

; TAKANO, HUDSON K.

; GONÇALVES NETTO, ACÁCIO

; PICOLI JUNIOR, GILMAR J.

; CAVENAGHI, ANDERSON L.

; SILVA, VANESSA F.V.

; NICOLAI, MARCELO

; CHRISTOFFOLETI, PEDRO J.

; OLIVEIRA JUNIOR, RUBEM S. DE

; MELO, MARCEL S.C. DE

; OVEJERO, RAMIRO F. LOPEZ

Anais da Academia Brasileira de Ciências

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2021, Volume 93 N. 1 elocation e20190425

Abstract: En | Text: En | PDF: En

Abstract Conyza species are important weeds in global agriculture, especially due to their capacity to evolve resistance to multiple herbicide mechanisms of action. We aimed to evaluate the frequency and distribution of resistance to glyphosate and chlorimuron-ethyl in Conyza spp. populations from Brazil. Seed samples were collected from grain production areas across nine Brazilian states over five consecutive years (2014 to 2018). Prior to resistance monitoring trials, dose-response assays were conducted to determine a single dose of glyphosate or chlorimuron-ethyl to discriminate resistant and susceptible populations. Resistance monitoring based on plant responses to the application of discriminatory doses of glyphosate (960 g ha-1) or chlorimuron-ethyl (20 g ha-1). Populations were classified as resistant, moderately resistant, or susceptible to either herbicide. While glyphosate resistance was highly frequent (71.2%) in all the five years, chlorimuron-ethyl resistant populations occurred at 39.8% of the total. The frequency of multiple resistance to both herbicides (35.3%) was proportional to the occurrence of chlorimuron-ethyl resistance (39.6%). Resistance to glyphosate and to chlorimuron-ethyl were found across all states evaluated.

https://doi.org/10.1590/0001-3765202120190425 562 downloads

15.

Use and misuse of biomarkers and the role of D-dimer and C-reactive protein in the management of COVID-19: A post-hoc analysis of a prospective cohort study
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Gonçalves, Fabio Augusto Rodrigues

; Besen, Bruno Adler Maccagnan Pinheiro

; Lima, Clarice Antunes de

; Corá, Aline Pivetta

; Pereira, Antônio José Rodrigues

; Perazzio, Sandro Félix

; Gouvea, Christiane Pereira

; Fonseca, Luiz Augusto Marcondes

; Trindade, Evelinda Marramon

; Sumita, Nairo Massakazu

; Duarte, Alberto José da Silva

; Lichtenstein, Arnaldo

; Bonfa, Eloisa

; Utiyama, Edivaldo M.

; Segurado, Aluisio C.

; Perondi, Beatriz

; Miethke-Morais, Anna

; Montal, Amanda C.

; Harima, Leila

; Fusco, Solange R. G.

; Silva, Marjorie F.

; Rocha, Marcelo C.

; Marcilio, Izabel

; Rios, Izabel Cristina

; Kawano, Fabiane Yumi Ogihara

; Jesus, Maria Amélia de

; Kallas, Ésper George

; Carmo, Carolina

; Tanaka, Clarice

; Souza, Heraldo Possolo de

; Marchini, Julio F. M.

; Carvalho, Carlos

; Ferreira, Juliana C.

; Levin, Anna Sara Shafferman

; Oliveira, Maura Salaroli

; Guimarães, Thaís

; Lázari, Carolina dos Santos

; Sabino, Ester

; Magri, Marcello M. C.

; Barros-Filho, Tarcisio E. P.

; Francisco, Maria Cristina Peres Braido

; Costa, Silvia F.

Clinics

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2021, Volume 76 elocation e3547

Abstract: En | Text: En | PDF: En

OBJECTIVE: Coronavirus disease 2019 (COVID-19) is associated with high mortality among hospitalized patients and incurs high costs. Severe acute respiratory syndrome coronavirus 2 infection can trigger both inflammatory and thrombotic processes, and these complications can lead to a poorer prognosis. This study aimed to evaluate the association and temporal trends of D-dimer and C-reactive protein (CRP) levels with the incidence of venous thromboembolism (VTE), hospital mortality, and costs among inpatients with COVID-19. METHODS: Data were extracted from electronic patient records and laboratory databases. Crude and adjusted associations for age, sex, number of comorbidities, Sequential Organ Failure Assessment score at admission, and D-dimer or CRP logistic regression models were used to evaluate associations. RESULTS: Between March and June 2020, COVID-19 was documented in 3,254 inpatients. The D-dimer level ≥4,000 ng/mL fibrinogen equivalent unit (FEU) mortality odds ratio (OR) was 4.48 (adjusted OR: 1.97). The CRP level ≥220 mg/dL OR for death was 7.73 (adjusted OR: 3.93). The D-dimer level ≥4,000 ng/mL FEU VTE OR was 3.96 (adjusted OR: 3.26). The CRP level ≥220 mg/dL OR for VTE was 2.71 (adjusted OR: 1.92). All these analyses were statistically significant (p<0.001). Stratified hospital costs demonstrated a dose-response pattern. Adjusted D-dimer and CRP levels were associated with higher mortality and doubled hospital costs. In the first week, elevated D-dimer levels predicted VTE occurrence and systemic inflammatory harm, while CRP was a hospital mortality predictor. CONCLUSION: D-dimer and CRP levels were associated with higher hospital mortality and a higher incidence of VTE. D-dimer was more strongly associated with VTE, although its discriminative ability was poor, while CRP was a stronger predictor of hospital mortality. Their use outside the usual indications should not be modified and should be discouraged.

https://doi.org/10.6061/clinics/2021/e3547

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