Search | SciELO

Abstract This work describes the circulation over the continental slope and the São Paulo Plateau in the Santos Basin during the SANSED winter 2019 survey. The cruise consisted of four legs in the period between June, 11 and August, 03 2019. The observed circulation is dominated by the Atlantic southwestern boundary current regime and remotely-generated anticyclones and cyclones. The former is composed by the Brazil Current, the Intermediate Western Boundary Current and their mesoscale meanders; the latter are 300km vortical rings with origin in the eastern side of the South Atlantic Basin. A Lagrangian scheme applied over satellite altimeter maps indicate that the origin of these rings is primarily the Cape Basin of South Africa. The interaction between the boundary currents, their cyclonic meanders, and the anticyclonic rings is complex, and varies widely. During the SANSED winter 2019 survey period, three anticyclones interacted with the Brazil Current, instabilizing it, forming dipoles with the current cyclonic meanders, leading to their downstream propagation. Ancienter cyclonic eddies within Santos Basin may interfere with the propagation of the large anticyclones further south. In addition, the continuous arrival of remotely-originated anticyclones, the larger portion over the São Paulo Plateau presented a tendency of counter-clockwise circulation during the whole cruise period.

https://doi.org/10.1590/2675-2824071.2206icas

Percepção do ensino remoto emergencial por discentes em uma escola de ensino superior de saúde
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Motta-Passos, Isabella da

; Martinez, Márcio Luís Lombardi

; Andrade, Sandy Caroline da Silva

; Pinho, Ana Clara dos Santos

; Martins, Milton de Arruda

Revista Brasileira de Educação Médica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 47 N. 1 elocation e031

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

Abstract: Introduction: The onset of the Covid-19 pandemic led global health institutions to recommend the adoption of restrictive measures such as the closure of educational facilities. Educational institutions were forced to suddenly adapt to emergency distance learning methods, with little time for preparation. The students also faced challenges such as relying on the internet and remaining isolated at home. Medical and health science schools also had to adapt to this new model to humanized practices. Objective: To evaluate the perceived use of emergency distance learning by students at a state university health sciences and medical school during the Covid-19 Pandemic. Method: This is a descriptive and exploratory study, with a cross-sectional design and quantitative approach, involving the application of a questionnaire containing closed questions. The questionnaire was divided into four topics: sample characterization, conditions for internet use, study site conditions, and student perception of the use of distance learning. Result: The study included 480 students from the nursing, medicine, and dentistry courses at the Amazonas State University. Most of these students used their home wifi, with regular signal quality. Students from smaller, inner state towns were the most disadvantaged by inconsistent internet connections. Students were mainly in their bedrooms when they attended the and pointed to losing concentration easily as the main detrimental factor of the remote classes. Most students disagreed with the effectiveness of assessments for this type of learning,and rated the experience with remote teaching as unsatisfactory. However, most students agreed that it is possible to learn theoretical content with quality through distance learning. Conclusion: The Covid-19 pandemic brought about a sudden change of scenery. The new educational model, using distance learning, has brought new challenges for teaching. The results show that the factors that hindered the students were the instability of their internet connection and difficulty in maintaining concentration during distance learning classes. Students found it easy to clarify doubts about the classes with the teachers; the system proved adequate for the teaching and learning of the theoretical content.

Resumo: Introdução: Com a pandemia de Covid-19, instituições globais de saúde recomendaram a adoção de medidas restritivas, como o fechamento de unidades de ensino. As instituições de ensino tiveram que se adaptar ao ensino remoto emergencial de forma abrupta e com pouco tempo para preparo. Os alunos também tiveram desafios a serem enfrentados, como uso da internet e isolamento dentro de casa. O ensino superior na área de saúde também teve que se adequar a esse novo modelo com adaptação a práticas humanizadas. Objetivo: Este estudo teve como objetivo avaliar a percepção da utilização do ensino remoto emergencial por discentes em uma universidade pública de saúde durante a pandemia da Covid-19. Método: Trata-se de uma pesquisa descritiva e exploratória, com delineamento transversal e abordagem quantitativa, realizada por meio de aplicação de um questionário com perguntas fechadas. O questionário foi dividido em quatro tópicos: caracterização da amostra, condições de uso da internet, condições do local do estudo e percepção do estudante acerca da utilização do ensino remoto. Resultado: Participaram do estudo 480 alunos dos cursos de Enfermagem, Medicina e Odontologia da Universidade do Estado do Amazonas. A maioria desses alunos utilizou wi-fi residencial, com qualidade de sinal regular, e aqueles que residem no interior do estado foram os mais prejudicados por conta da inconstância da internet. Os alunos assistiram predominantemente às aulas no quarto e apontaram a fácil desconcentração como o fator mais prejudicial das aulas remotas. A maioria dos alunos discorda da eficácia das avaliações para esse tipo de ensino, assim como avalia de forma insatisfatória a experiência com o ensino remoto. No entanto, a maioria concordou que é possível aprender o conteúdo teórico com qualidade no ensino remoto. Conclusão: A pandemia de Covid-19 acarretou uma mudança repentina de cenário. O novo modelo educacional, de educação a distância, trouxe novos desafios para o ensino. Os resultados evidenciam que os fatores que prejudicaram os estudantes foram a instabilidade da internet e a dificuldade em se concentrar durante a aprendizagem remota. Houve facilidade para os discentes esclarecerem as dúvidas das aulas com os docentes, o que corrobora o ensino e a aprendizagem da parte teórica por meio desse sistema.

https://doi.org/10.1590/1981-5271v47.1-20220261

Lesão Miocárdica e Prognóstico em Pacientes Hospitalizados com COVID-19 no Brasil: Resultados do Registro Nacional de COVID-19
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Barbosa, Hannah Cardoso

; Martins, Maria Auxiliadora Parreiras

; Jesus, Jordana Cristina de

; Meira, Karina Cardoso

; Passaglia, Luiz Guilherme

; Sacioto, Manuela Furtado

; Bezerra, Adriana Falangola Benjamin

; Schwarzbold, Alexandre Vargas

; Maurílio, Amanda de Oliveira

; Farace, Barbara Lopes

; Silva, Carla Thais Cândida Alves da

; Cimini, Christiane Corrêa Rodrigues

; Silveira, Daniel Vitorio

; Carazai, Daniela do Reis

; Ponce, Daniela

; Costa, Emanuel Victor Alves

; Manenti, Euler Roberto Fernandes

; Cenci, Evelin Paola de Almeida

; Bartolazzi, Frederico

; Madeira, Glícia Cristina de Castro

; Nascimento, Guilherme Fagundes

; Velloso, Isabela Vasconcellos Pires

; Batista, Joanna d’Arc Lyra

; Morais, Júlia Drumond Parreiras de

; Carvalho, Juliana da Silva Nogueira

; Ruschel, Karen Brasil

; Martins, Karina Paula Medeiros Prado

; Zandoná, Liege Barella

; Menezes, Luanna Silva Monteiro

; Kopittke, Luciane

; Castro, Luís César de

; Nasi, Luiz Antônio

; Floriani, Maiara Anschau

; Souza, Maíra Dias

; Carneiro, Marcelo

; Bicalho, Maria Aparecida Camargos

; Lima, Maria Clara Pontello Barbosa

; Godoy, Mariana Frizzo de

; Guimarães-Júnior, Milton Henriques

; Mendes, Paulo Mascarenhas

; Delfino-Pereira, Polianna

; Ribeiro, Raquel Jaqueline Eder

; Finger, Renan Goulart

; Menezes, Rochele Mosmann

; Francisco, Saionara Cristina

; Araújo, Silvia Ferreira

; Oliveira, Talita Fischer

; Oliveira, Thainara Conceição de

; Polanczyk, Carisi Anne

; Marcolino, Milena Soriano

Arquivos Brasileiros de Cardiologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 120 N. 2 elocation e20220151

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

Abstract Background Cardiovascular complications of COVID-19 are important aspects of the disease’s pathogenesis and prognosis. Evidence on the prognostic role of troponin and myocardial injury in Latin American hospitalized COVID-19 patients is still scarce. Objectives To evaluate myocardial injury as independent predictor of in-hospital mortality and invasive mechanical ventilation support in hospitalized patients, from the Brazilian COVID-19 Registry. Methods This cohort study is a substudy of the Brazilian COVID-19 Registry, conducted in 31 Brazilian hospitals of 17 cities, March-September 2020. Primary outcomes included in-hospital mortality and invasive mechanical ventilation support. Models for the primary outcomes were estimated by Poisson regression with robust variance, with statistical significance of p<0.05. Results Of 2,925 patients (median age of 60 years [48-71], 57.1% men), 27.3% presented myocardial injury. The proportion of patients with comorbidities was higher among patients with cardiac injury (median 2 [1-2] vs. 1 [0-2]). Patients with myocardial injury had higher median levels of brain natriuretic peptide, lactate dehydrogenase, creatine phosphokinase, N-terminal pro-brain natriuretic peptide, and C-reactive protein than patients without myocardial injury. As independent predictors, C-reactive protein and platelet counts were related to the risk of death, and neutrophils and platelet counts were related to the risk of invasive mechanical ventilation support. Patients with high troponin levels presented a higher risk of death (RR 2.03, 95% CI 1.60-2.58) and invasive mechanical ventilation support (RR 1.87, 95% CI 1.57-2.23), when compared to those with normal troponin levels. Conclusion Cardiac injury was an independent predictor of in-hospital mortality and the need for invasive mechanical ventilation support in hospitalized COVID-19 patients.

Resumo Fundamento As complicações cardiovasculares da COVID-19 são aspectos importantes da patogênese e do prognóstico da doença. Evidências do papel prognóstico da troponina e da lesão miocárdica em pacientes hospitalizados com COVID-19 na América Latina são ainda escassos. Objetivos Avaliar a lesão miocárdica como preditor independente de mortalidade hospitalar e suporte ventilatório mecânico em pacientes hospitalizados, do registro brasileiro de COVID-19. Métodos Este estudo coorte é um subestudo do registro brasileiro de COVID-19, conduzido em 31 hospitais brasileiros de 17 cidades, de março a setembro de 2020. Os desfechos primários incluíram mortalidade hospitalar e suporte ventilatório mecânico invasivo. Os modelos para os desfechos primários foram estimados por regressão de Poisson com variância robusta, com significância estatística de p<0,05. Resultados Dos 2925 pacientes [idade mediana de 60 anos (48-71), 57,1%], 27,3% apresentaram lesão miocárdica. A proporção de pacientes com comorbidades foi maior nos pacientes com lesão miocárdica [mediana 2 (1-2) vs. 1 (0-20)]. Os pacientes com lesão miocárdica apresentaram maiores valores medianos de peptídeo natriurético cerebral, lactato desidrogenase, creatina fosfoquinase, N-terminal do pró-peptídeo natriurético tipo B e proteína C reativa em comparação a pacientes sem lesão miocárdica. Como fatores independentes, proteína C reativa e contagem de plaquetas foram relacionados com o risco de morte, e neutrófilos e contagem de plaquetas foram relacionados ao risco de suporte ventilatório mecânico invasivo. Os pacientes com níveis elevados de troponina apresentaram um maior risco de morte (RR 2,03, IC95% 1,60-2,58) e suporte ventilatório mecânico (RR 1,87;IC95% 1,57-2,23), em comparação àqueles com níveis de troponina normais. Conclusão Lesão cardíaca foi um preditor independente de mortalidade hospitalar e necessidade de suporte ventilatório mecânico em pacientes hospitalizados com COVID-19.

https://doi.org/10.36660/abc.20220151

Multidisciplinary Scientific Cruises for Environmental Characterization in the Santos Basin – Methods and Sampling Design
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Moreira, Daniel L.

; Dalto, Adriana G.

; Figueiredo JR, Alberto G.

; Valerio, Aline M.

; Detoni, Amalia M. S.

; Bonecker, Ana C. T.

; Signori, Camila N.

; Namiki, Cláudia

; Sasaki, Dalton K.

; Pupo, Daniel V.

; Silva, Danilo A.

; Kutner, Deborah S.

; Duque-Castaño, Diana C.

; Marcon, Eduardo H.

; Gallotta, Fabiana D. C.

; Paula, Fabiana S.

; Gallucci, Fabiane

; Roque, Gabriela C. F.

; Campos, Giulia S.

; Fonseca, Gustavo

; Mattos, Gustavo

; Lavrado, Helena P.

; Silveira, Ilson C. A. da

; Costa, Jessica O.

; Santos Filho, João R. dos

; Carneiro, Juliane C.

; Moreira, Julio C.F.

; Rozo, Laura

; Araujo, Leandro F.M.

; Lazzari, Letícia

; Silva, Letícia O. da

; Michelazzo, Luan S.

; Fernandes, Luciano F.

; Dottori, Marcelo

; Araújo Jr., Marcus A. G. de

; Chuqui, Mateus G.

; Ceccopieri, Milena

; Borges-Silva, Milton

; Kampel, Milton

; Bergo, Natascha M.

; Silva, Paulo V. M.

; Tura, Pedro M.

; Moura, Rafael B. de

; Romano, Renato G.

; Martins, Renato P.

; Carreira, Renato S.

; Toledo, Rodrigo G.A.

; Bonecker, Sérgio L.C.

; Disaró, Sibelle T.

; Rodrigues, Silvana V.

; Corbisier, Thais N.

; Vicente, Thaisa M.

; Paiva, Vitor G. de

; Pellizari, Vivian H.

; Belo, Wellington C.

; Brandini, Frederico P.

; Sousa, Silvia H.M

Ocean and Coastal Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 71 Suppl. 3 elocation e23022

Abstract: En | Text: En | PDF: En

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

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

Characterization of Brazilian Buriti oil biomaterial: the influence on the physical, chemical properties and behaviour of Goat Wharton’s jelly mesenchymal stem cells
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Carvalho, Camila Ernanda Sousa de

; Reis, Fernando da Silva

; Silva, Elis Rosélia Dutra de Freitas Siqueira

; Bezerra, Dayseanny de Oliveira

; Pacheco, Isnayra Kerolaynne Carneiro

; Fialho, Ana Cristina Vasconcelos

; Matos, José Milton Elias de

; Melo, Wanderson Gabriel Gomes de

; Leite, Yulla Klinger Pereira de Carvalho

; Argôlo Neto, Napoleão Martins

; Carvalho, Maria Acelina Martins de

Animal Reproduction

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 20 N. 4 elocation e20230071

Abstract: En | Text: En | PDF: En

Abstract The Brazilian Buriti oil presents low extraction costs and relevant antioxidant properties. Thus, this work aimed to analyze Buriti oil biomaterial (BB), within its physicochemical properties, biocompatibility and cellular integration, with the purpose to the use as a growth matrix for Goat Wharton’s jelly mesenchymal stem cells. Biomaterials were produced from Buriti oil polymer (Mauritia flexuosa), for it’s characterization were performed Infrared Region Spectroscopy (FTIR) and Thermogravimetric Analysis (TG and DTG). The biointegration was analyzed by Scanning Electron Microscopy (SEM) and histological techniques. In order to investigate biocompatibility, MTT (3-(4,5-dimetil-2-tiazolil)-2,5-difenil-2H-tetrazólio) test and hemolytic activity tests were performed. The activation capacity of immune system cellswas measured by phagocytic capacity assay and nitric oxide synthesis . The BB presented an amorphous composition, with high thermal stability and high water expansion capacity, a surface with micro and macropores, and good adhesion of Wharton’s jelly mesenchymal stem cells (MSCWJ). We verified the absence of cytotoxicity and hemolytic activity, in addition, BB did not stimulate the activation of macrophages. Proving to be a safe material for direct cultivation and also for manufacturing of compounds used for in vivo applications.

https://doi.org/10.1590/1984-3143-ar2023-0071

BR-EMS 2021 life table for the Brazilian insured population
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Mario de

; Bertho, Ana Carolina Soares

; Costa, Bruno

; Silva, Flávia Sommerlatte

; Alves, Mariane Branco

; Ramirez, Milton Ramos

; Borges, Rafael Brandão de Rezende

; Marques, Reinaldo

; Rosa, Ricardo Martins da Silva

; Peregrino, Rodrigo Lima

; Lobo, Viviana das Graças Ribeiro

; Fonseca, Thais Cristina Oliveira

Revista Brasileira de Estudos de População

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 40 elocation e0252

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

Abstract This article presents the Brazilian private insurance market’s actuarial life tables, BR- EMS 2021. Using Bayesian inference on the parameters of the Heligman- Pollard law of mortality and data from 23 insurance groups over 15 years, totaling 3.5 billion registers, the data were corrected through a two hidden-layer neural network. The resulting tables show that the insured population exhibits lower mortality rates than the general Brazilian population, even lower than the national populations of well-developed countries such as the USA. Moreover, besides the expected gender gap in mortality rates, there is a clear distance between the death and survivorship insurance coverage groups. Likewise, the insured population characteristics mitigate well-known regional structural discrepancies in the Brazilian population, indicating that being part of the selected population of insured individuals is thus associated with a more effective protection against death than other outstanding factors such as geographic region of residence.

Resumen Este artículo presenta las tablas de vida del mercado de seguros privados brasileño, BR-EMS 2021. Los datos, obtenidos de 23 grupos de seguros a lo largo de 15 años, totalizando 3,5 mil millones de registros, fueron corregidos usando una red neuronal con dos capas ocultas. Mediante la inferencia bayesiana para estimar los parámetros bajo la ley de mortalidad de Heligman-Pollard, las tablas obtenidas muestran que la población asegurada tiene tasas de mortalidad más bajas que la población general brasileña e incluso más bajas que las poblaciones nacionales de países desarrollados, como los Estados Unidos de Norteamérica. Además de la diferencia de género esperada en las tasas de mortalidad, hay una clara distinción entre las tablas de grupos de cobertura de riesgo y cobertura de sobrevivientes. Asimismo, se demuestra que las tablas regionales de población asegurada no presentan las conocidas discrepancias estructurales regionales en Brasil, lo que indica que participar de la población de asegurados está asociado con una protección contra la muerte más efectiva que otros factores como la región geográfica de residencia.

Resumo Este artigo apresenta as tábuas de vida do mercado de seguros privados brasileiro, BR-EMS 2021. Os dados obtidos de 23 grupos seguradores ao longo de 15 anos, totalizando 3,5 bilhões de registros, foram corrigidos por meio de rede neural com duas camadas ocultas. Usando a inferência bayesiana para estimar os parâmetros sob a lei de mortalidade Heligman-Pollard, as tábuas obtidas mostram que a população segurada apresenta probabilidades de morte mais baixas do que a população brasileira em geral e até mesmo em relação a populações nacionais de países desenvolvidos, como os EUA. Além da esperada diferença de gênero nas taxas de mortalidade, há uma clara distância entre as probabilidades de morte dos grupos de cobertura de risco e cobertura de sobrevivência. Da mesma forma, é demonstrado que as tábuas regionais da população segurada não apresentam as discrepâncias regionais conhecidas no Brasil, indicando que fazer parte da população selecionada de segurados está associado a um fator de proteção mais eficaz do que outros fatores, como a região geográfica de residência.

https://doi.org/10.20947/s0102-3098a0252

Produção e decomposição de serapilheira em áreas de reflorestamento e floresta nativa no sul do Amazonas
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bello, Ozias Cunha

; Cunha, José Maurício

; Campos, Milton César Costa

; Pereira, Marcos Gervasio

; Santos, Luís Antônio Coutrim

; Martins, Thalita Silva

; Brito Filho, Elilson Gomes de

Ciência Florestal

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2022, Volume 32 N. 4 Pages 1854 - 1875

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

Abstract The diversity of forest species is an intrinsic characteristic of the Amazon biome, with litter being the main responsible for the largest portion of nutrients returned to the soil. Thus, the objective of this study was to quantify the annual production of burlap and to determine the rate of decomposition over one year, comparing the results in the different study environments. The study was developed in the municipality of Humaitá-AM. For the evaluation of the litter production, ten cone collectors were randomly installed in each study area. Each litter sample was placed separately in properly identified paper bags and taken to the laboratory and dried in a forced air circulation oven at 65 ° C. The litter decomposition rate was estimated by mass loss analysis using litter bags. Litter production with the highest annual average was 8,03 Mg ha-1 year -1 for the native forest environment, with no significant difference for the other study areas. Among the fractions of the litter that contributed the most to the leaf, reaching a higher average percentage in the year of 72,1% for the environment of reforestation with teak (Tectona grandis L.). The decomposition of litter occurred more rapidly (0.0025 g g-1 day) in the reforestation environment with genipap (Genipa americana L.), requiring 277,26 days to decompose half of the leaf material.

Resumo A diversidade de espécies florestais é uma característica intrínseca do bioma Amazônico, sendo a serapilheira a principal responsável pela maior parcela dos nutrientes devolvidos ao solo. Dessa forma, o objetivo deste estudo foi quantificar a produção anual de serapilheira e determinar a velocidade de decomposição ao longo de um ano, comparando os resultados nos diferentes ambientes de estudo. O estudo foi desenvolvido no município de Humaitá-AM. Para a avaliação da produção de serapilheira, foram instalados de modo aleatório dez coletores cônicos em área de Floresta Nativa, área de Reflorestamento com Teca (Tectona grandis L), área de Reflorestamento com Jenipapo (Genipa americana L.) e ambiente de Reflorestamento considerado Misto, composto pelas espécies Mogno (Swietenia macrophylla King.), Andiroba (Carapa guianensis Aubl.), Jenipapo (Genipa americana L.), Teca (Tectona grandis L.) e Sumauma (Ceiba pentandra). Cada amostra de serapilheira foi colocada, separadamente, em sacos de papel devidamente identificados e levadas para laboratório e secas em estufa de circulação de ar forçado a 65°C. A estimativa da taxa de decomposição da serapilheira foi feita pela análise de perda de massa utilizando-se litter bags. A produção de serapilheira média anual foi de 8,03 Mg ha-1 ano-1 para o ambiente de floresta nativa, e não houve diferença significativa para as demais áreas de estudo. Entre as frações da serapilheira, a que mais contribuiu foi a foliar, atingindo maior média percentual no ano de 72,1% para o ambiente de reflorestamento com teca (Tectona grandis L.). A decomposição da serapilheira ocorreu de forma mais acelerada (0,0025 g g-1dia) no ambiente de reflorestamento com jenipapo (Genipa americana L.), sendo necessários 277,26 dias para que fosse decomposta metade do material foliar.

https://doi.org/10.5902/1980509843526

Resistance of cocoa to Moniliophthora perniciosa – progenitors and progenies selection
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Pires, José Luis

; Melo, Gilson Roberto Pires

; Yamada, Milton Macoto

; Martins, Edna Dora

; Luz, Newman

Revista Ceres

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2022, Volume 69 N. 5 Pages 544 - 552

Abstract: En | Text: En | PDF: En

ABSTRACT Witches' broom, caused by Moniliophthora perniciosa, is the most important cacao disease in Brazil, and the final objective of this study is increasing the level and durability of resistance to this fungus, through the association of different alleles or genes favorable to the character, for the generation of new cocoa varieties. It was conducted, for 10 years, the evaluation of the number of vegetative brooms and cushions brooms per plant, of progenies from a cross breeding scheme in North Carolina II design, with the clones: Be 4, Cepec 89, CSul 7, EEG 29, ICS 98, Oc 67, RB 39 and Scavina 6, as group 1 of progenitors, and CCN 10, CCN 51, Cepec 86, ICS 9, IMC 76, Na 33, P4b, and SGu 54, as group 2. For both groups there were differences in terms of the general combining ability and specific combining ability. Differences among progenitors and among progenies were also found for the tendencies in the evolution of the number of brooms over the evaluation period. And it was possible to increase the level and durability of resistance through the association of alleles or genes favorable to this character, all the three results confirming the original hypothesis.

https://doi.org/10.1590/0034-737x202269050007

Risk of osteoporotic fracture in women using the FRAX tool with and without bone mineral density score in patients followed at a tertiary outpatient clinic ‒ An observational study
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Favarato, Maria Helena Sampaio

; Almeida, Maria Flora de

; Lichtenstein, Arnaldo

; Martins, Milton de Arruda

; Ferreira Junior, Mario

Clinics

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 77 elocation 100015

Abstract: En | Text: En | PDF: En

ABSTRACT Objectives: Fragility fractures increase morbidity and mortality. Adding assessment of clinical risk factors independently or as a previous step to Bone Densitometry (BD) should provide better accuracy in fracture risk prediction. FRAX tool might be used to stratify patients in order to rationalize the need for BD and risk classification. The primary objective of this study is to describe and perform comparisons between the estimated risk of fractures in 10 years using the FRAX calculator based on clinical factors with and without BD results for women aged 40 or more with clinical diseases monitored in tertiary care service in internal medicine. Methods: Cross-sectional. Women over 40 years with BD in the previous year. After medical chart review, identification of risk factors and risk estimations using FRAX-BRAZIL with (FRAX BDI) and without (FRAX BDNI) the inclusion of T-score. Results: 239 women. Age 65 ± 10.35 years. BMI 29.68 ± 6.27kg/m2. Risk factors: 32(13.4%) previous fractures; 23 (9.6%) current smoking; 78 (32.6%) corticosteroids use; 44 (18.4%) rheumatoid arthritis; 38 (15.9%) secondary causes; FRAX scores were higher when BD was not included. Spearman correlation coefficients between FRAX BDNI and FRAX BDI for major fractures r = 0.793 (95% CI 0.7388‒0.836). For hip fractures r = 0.6922 (95% CI 0.6174‒0.75446) Conclusion: Using FRAX to estimate 10-year fracture risk without BD data might be a reliable tool for screening, even for patients with a high prevalence of risk factors, improving accessibility and equity in health systems. The present study’s data suggest an overestimation of fracture risk with FRAX BDNI, suggesting that it is safe to be widely used as a screening tool.

https://doi.org/10.1016/j.clinsp.2022.100015

10.

Hydrogel-based dressings in the treatment of partial thickness experimentally induced burn wounds in rats
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bernardes, Milton Junior Cândido

; Gonçalves, Randys Caldeira

; Carvalho, Carolyna de Sousa

; Rosa, Luciana Martins

; Ferreira, Amanda Peixoto

; Vilela, Marielle Sousa

; Vinaud, Marina Clare

; Galdino Junior, Hélio

; Lino Junior, Ruy de Souza

Acta Cirúrgica Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 37 N. 4 elocation e370401

Abstract: En | Text: En | PDF: En

ABSTRACT Purpose: To compare four commercially available hydrogel formulations in the healing of partial thickness burns experimentally induced in rats. Methods: Wistar rats were used, and after the burn wound induction they were divided into the following treatment groups: G1) NaCl 0.9%; G2) 1% silver sulfadiazine; G3) Debrigel™; G4) Safgel™; G5) Dersani™; G6) Solosite™. The animals were followed during seven, 14 and 30 days after the injury induction. Morphometric, macroscopic and microscopic evaluations were performed. Results: The treatment with Dersani™ induced better results during the inflammatory and proliferative phases of the healing process (p<0.05). The animals treated with Safgel™ presented better scaring in the remodeling phase (p<0.05), and the treatment with Dersani™ and Solosite™ induced greater wound closure (p<0.05). Conclusions: The hydrogel-based dressings presented beneficial outcomes in the healing of burn wounds experimentally induced in rats due to their ability in maintain the humidity of the wound, in removing the exudate, in promoting cell migration and collagen production during the different phases of the healing process.

https://doi.org/10.1590/acb370401

11.

Planos e seguros de saúde: a financeirização das empresas e grupos econômicos controladores do esquema comercial privativo de assistência no Brasil
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sestelo, José Antonio de Freitas

; Tavares, Leandro Reis

; Silva, Milton Santos Martins da

Cadernos de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 38 Suppl. 2 elocation e00075621

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

O objetivo deste artigo é descrever a expressão da financeirização em um conjunto de dez empresas e grupos econômicos atuantes no comércio de planos e seguros de saúde no Brasil entre 2008 e 2016, selecionadas pelo faturamento e pelo tamanho da carteira de clientes. As dimensões contábil/financeira e patrimonial foram analisadas a partir dos balanços patrimoniais e fluxos de caixa cotejados com indicadores microeconômicos de financeirização e dos registros de alteração na composição societária depositados em juntas comerciais. Para analisar o posicionamento político das empresas recorreu-se a dados primários de entrevistas semiestruturadas com representantes qualificados bem como à análise de relatórios aos acionistas e notícias de mídia especializada. Em síntese, a dominância financeira encontra expressão nas empresas de planos de saúde estudadas, mas a sua caracterização não obedece a um padrão homogêneo universalmente reproduzível, devendo a pesquisa empírica ocupar um lugar de destaque na investigação do fenômeno. Sendo a saúde e o seu componente assistencial definidos constitucionalmente como bens de relevância pública que solicitam o amparo de políticas estáveis e equitativas na distribuição dos recursos disponíveis e a tendência oligopolista e concentradora de recursos inerentes ao processo de financeirização contraditória com essa diretriz, e dado o lócus estratégico ocupado por essas empresas, as perspectivas projetadas para o conjunto do sistema tendem a evoluir para aumento dos gastos totais em saúde com maior concentração de recursos assistenciais e puncionamento dos recursos em circulação pela esfera da acumulação financeira.

The article aims to describe the characteristics of financialization in a set of ten companies and economic groups operating health plans and insurance in Brazil from 2008 to 2016, selected according to their turnover and the size of their client portfolio. The financial/accounting and net worth dimensions were analyzed according to the balance sheets and cash flows, compared to microeconomic indicators of financialization and the records of changes in the shareholding structure filed with commercial boards. The authors analyzed the companies’ policy positions based on primary data from semi-structured interviews with qualified representatives and the analysis of shareholder reports and news from the specialized media. In short, financial dominance is expressed in the health plans studied here, but their characterization does not follow a universally reproducible and homogeneous pattern, and empirical research should play a key role in further investigating the phenomenon. Since health and healthcare are defined constitutionally as publicly relevant goods that require support by stable and equitable policies in the distribution of available resources, and given the oligopolistic and concentrating trend in the inherent resources in the process of financialization (in opposition to this guideline) and the strategic place occupied by these companies, the prospects for the system as a whole tend to evolve towards an increase in total health expenditures, with greater concentration of healthcare resources and circulation of resources in the financial accumulation sphere.

El objetivo de este artículo es describir la expresión de la financiarización en un conjunto de diez empresas y grupos económicos agentes en la comercialización de planes y seguros de salud en Brasil entre 2008 y 2016, seleccionados por su facturación y tamaño de su cartera de clientes. Las dimensiones contable/financiera y patrimonial se analizaron a partir de los balances patrimoniales y flujos de caja cotejados con indicadores microeconómicos de financiarización, así como de los registros de modificación en la composición societaria depositados en juntas comerciales. Para analizar el posicionamiento político de las empresas se recurrió a datos primarios de entrevistas semiestructuradas con representantes cualificados, así como al análisis de informes a los Accionistas y noticias de medios especializados. En resumen, el dominio financiero encuentra expresión en las empresas de planes de salud estudiadas, pero su caracterización no obedece a un patrón homogéneo universalmente reproducible, debiendo ocupar la investigación empírica un lugar de relevancia en la investigación del fenómeno. Siendo la salud y su componente asistencial definidos constitucionalmente como bienes de relevancia pública que solicitan el amparo de políticas estables y equitativas en la distribución de los recursos disponibles, y la tendencia oligopolista y concentradora de recursos inherentes al proceso de financiarización contradictoria con esa directriz, y dado el locus estratégico ocupado por esas empresas, las perspectivas proyectadas para el conjunto del sistema tienden a evolucionar hacia el aumento de los gastos totales en salud con mayor concentración de recursos asistenciales y acaparamiento de los recursos en circulación por parte de la esfera de acumulación financiera.

https://doi.org/10.1590/0102-311x00075621

12.

A dinâmica capitalista no setor hospitalar privado no Brasil entre 2009 e 2015
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Milton Santos Martins da

; Travassos, Claudia

Cadernos de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 38 Suppl. 2 elocation e00188721

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

Os hospitais apresentam mudanças em seu papel nos sistemas de saúde. No Brasil, os hospitais privados sempre tiveram destaque, com os filantrópicos voltando a ganhar maior importância no século XXI. Observa-se uma tendência, em especial nos Estados Unidos, de consolidação de hospitais, concentrando grande poder de mercado, consonante com o fenômeno capitalista de financeirização. O objetivo deste estudo é descrever, no contexto brasileiro, o movimento em curso nos hospitais e grupos hospitalares privados, identificando suas principais características e tendências à luz das dinâmicas atuais do capital. Realizou-se um estudo exploratório, descritivo, que teve como eixo de análise as dimensões patrimonial, contábil-financeira e política. O estudo cobriu o período entre 2009 e 2015, analisando 10 hospitais e três grupos hospitalares selecionados de modo intencional. Foram criados bancos de dados oriundos de diversas fontes a partir dos quais foram calculados indicadores e analisadas informações sobre cada uma das dimensões de análise. Observou-se que o setor hospitalar privado no Brasil já apresentava estratégias características de processo de financeirização, inclusive nos filantrópicos, tal como a formação de oligopólios por meio de fusões e aquisições e da dinâmica de diversificação para outras áreas como ensino e gestão de unidades públicas, foco em alta renda e internacionalização, apoiada por uma agenda política própria do setor. Trata-se de movimento intrinsecamente excludente, concentrador de riqueza, incompatível com os princípios constitucionais da universalidade e do direito à saúde, que requer a adoção de políticas públicas, regulamentação e controle social para sua contenção.

Hospitals have shown changes in their role in health systems. In Brazil, private hospitals have always stood out, with charitable hospitals gaining increasing importance in the 21st century. Especially in the United States, there has been a trend towards consolidation of hospitals, concentrating great market power, in keeping with the capitalist phenomenon of financialization. This study aims to describe the current evolution in the Brazilian context in private hospitals and hospital groups, identifying the principal characteristics and trends according to the current capital dynamics. A descriptive exploratory study was performed, focused on dimensions of net worth, accounting-finance, and policy. The study covered the period from 2009 to 2015, analyzing 10 hospitals and 3 hospital groups selected intentionally. Datasets were created from different sources, used to calculate indicators and to analyze information on each of these dimensions. The private hospital sector in Brazil, including charitable hospitals, already displayed strategies that are characteristic of financialization, such as the formation of oligopolies through mergers and acquisitions and diversification to other areas such as teaching and management of public units, a focus on high profit, and internationalization, backed by the sector’s own policy agenda. The trend is intrinsically exclusionary, concentrating wealth, inconsistent with the constitutional principles of universal care and the right to health, and it requires the adoption of public policies, regulation, and social control to contain it.

Los hospitales presentan cambios en su papel dentro de los sistemas de salud. En Brasil, los hospitales privados siempre tuvieron relevancia, con los filantrópicos volviendo a ganar mayor importancia en el siglo XXI. Se observa una tendencia, en especial en los EE.UU., de consolidación de hospitales, concentrando un gran poder de mercado, consonante con el fenómeno capitalista de financiarización. El objetivo de este estudio es describir en el contexto brasileño el movimiento en curso en los hospitales y grupos hospitalarios privados, identificando sus principales características y tendencias a la luz de las dinámicas actuales del capital. Se realizó un estudio exploratorio, descriptivo, que tuvo como eje de análisis las dimensiones patrimoniales, contable-financiera y política. El estudio cubrió el período entre 2009 y 2015, analizando 10 hospitales y 3 grupos hospitalarios seleccionados de modo intencional. Se crearon bancos de datos procedentes de diversas fuentes, a partir de los cuales se calcularon indicadores y analizó información sobre cada una de las dimensiones de análisis. Se observó que el sector hospitalario privado en Brasil ya presentaba estrategias características de proceso de financiarización, inclusive en los filantrópicos, tales como la formación de oligopolios mediante fusiones y adquisiciones, así como la dinámica de diversificación hacia otras áreas como formación y gestión de unidades públicas, enfocadas en rentas altas e internacionalización, apoyadas por una agenda política propia del sector. Se trata de un movimiento intrínsecamente excluyente, concentrador de riqueza, incompatible con los principios constitucionales de la universalidad y del derecho a la salud, y que requiere la adopción de políticas públicas, regulación y control social para su contención.

https://doi.org/10.1590/0102-311x00188721

13.

A dinâmica capitalista no setor hospitalar privado no Brasil entre 2009 e 2015
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Milton Santos Martins da

; Travassos, Claudia

Cadernos de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 38 Suppl. 2 elocation e00188721

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

https://doi.org/10.1590/0102-311x00188721

14.

Planos e seguros de saúde: a financeirização das empresas e grupos econômicos controladores do esquema comercial privativo de assistência no Brasil
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sestelo, José Antonio de Freitas

; Tavares, Leandro Reis

; Silva, Milton Santos Martins da

Cadernos de Saúde Pública

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 38 Suppl. 2 elocation e00075621

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

https://doi.org/10.1590/0102-311x00075621

15.

A vertical-mode extrapolation scheme applied to the Brazil Current domain: quasi-synoptic scenarios
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Amorim, João P. M.

; Silveira, Ilson C. A. da

; Borges-Silva, Milton

; Souza-Neto, Pedro W. M.

; Belo, Wellington C.

; Lazaneo, Cauê Z.

; Bernardo, Piero S.

; Dottori, Marcelo

; Martins, Renato P.

; Moreira, Daniel L.

Ocean and Coastal Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 70 Suppl. 1 elocation e22055

Abstract: En | Text: En | PDF: En

Abstract The Brazil Current (BC) is a western boundary current, with an average vertical extension of 500 m, which occupies the southwestern margin of Atlantic Ocean. Recently, the South Brazil Bight - SBB (23º S - 28º S) has been intensively explored by the oil and gas industries, which brought a high demand in operational oceanography and ocean state monitoring. In this study we present a new technique based on the vertical dynamic modes of oscillation, to extrapolate velocity profiles in the SBB, with potential applications to data acquired by Vessel Mounted Acoustic Doppler Current Profilers (VMADCP). Using four quasi-synoptic crosssectional velocity data, acquired by Lowered Acoustic Doppler Current Profilers (LADCP), we observed that the mean circulation of this region can be characterized as a 2-dynamical mode system. This mean circulation is mainly dominated at surface by the BC and at intermediate levels by the Intermediate Western Boundary Current (IWBC), which flows northward. Furthermore, observed mesoscale vortical features in the SBB, such as eddies and meanders, are shown to be primarily barotropic-mode dominated. In our extrapolation methodology, the use of an independent set of velocity time series obtained by four moorings has shown to be a valid way for obtaining the relative contribution of each dynamical mode in the velocity field in the SBB. Normalized mean squared errors below 10% and radar diagrams show that the presented methodology was able to reproduce the main dynamic features observed by LADCP transects. Also, with this technique, we extrapolated three VMADCP sections and the results agreed with previous observations.

https://doi.org/10.1590/2675-2824070.22141jpma

Showing

itens per page

Page of 11 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »