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SABERES E PRÁTICAS DE MÃES RIBEIRINHAS SOBRE VACINAÇÃO
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Silva, Ricardo Luiz Saldanha da

; Santos, Evelyn Rafaela de Almeida dos

; Silva, Elis Maria Rodrigues da

; Rodrigues, Ivaneide Leal Ataíde

; Andrade, Erlon Gabriel Rego de

; Nogueira, Laura Maria Vidal

Cogitare Enfermagem

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2023, Volume 28 elocation e88275

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

ABSTRACT Objective: to analyze the knowledge of riverine mothers about vaccination and its influence on the practice of taking their children for vaccination. Method: qualitative/descriptive study, conducted at the Combú Family Health Unit, Belém-Pará, Brazil, with 30 riverine mothers who had children of vaccination age. Data were produced by individual interviews, whose corpus was analyzed with the software Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires 0.7, alpha 2, using Descending Hierarchical Classification. Results: the software generated six classes, composing two categories: “Knowledge and practices of riverine mothers about vaccination” and “Importance of health education and the role of health professionals in sharing information about vaccination”. Conclusion: discussing the knowledge of riverside mothers about vaccination and its influence on decision-making allowed a critical reflection on the practices in the daily life of this population, providing health professionals with the opportunity to rethink strategies, especially in educational actions.

RESUMEN Objetivo: analizar los conocimientos de las madres ribereñas sobre la vacunación y su influencia en la práctica de llevar a sus hijos a vacunar. Método: estudio cualitativo/descriptivo realizado en la Unidad de Salud de la Familia de Combú, Belém-Pará, Brasil, con 30 madres ribereñas que tenían hijos en edad de vacunación. Los datos fueron producidos por entrevistas individuales, cuyo corpus fue analizado con el software Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires 0.7, alpha 2, utilizando la Clasificación Jerárquica Descendente. Resultados: el software generó seis clases, que componían dos categorías: “Conocimientos y prácticas de las madres ribereñas sobre la vacunación” e “Importancia de la educación sanitaria y papel de los profesionales de la salud en el intercambio de información sobre la vacunación”. Conclusión: discutir el conocimiento de las madres ribereñas sobre la vacunación y su influencia en la toma de decisiones nos permitió reflexionar críticamente sobre las prácticas en el día a día de esta población, dando a los profesionales de la salud la oportunidad de repensar estrategias, especialmente en las acciones educativas.

RESUMO Objetivo: analisar os saberes de mães ribeirinhas sobre vacinação e sua influência na prática de levar seus filhos para vacinar. Método: estudo qualitativo/descritivo, realizado na Unidade de Saúde da Família Combú, Belém-Pará, Brasil, com 30 mães ribeirinhas que tinham filhos em idade vacinal. Os dados foram produzidos por entrevistas individuais, cujo corpus foi analisado com o software Interface de R pour les Analyses Multidimensionnelles de Textes et de Questionnaires 0.7, alpha 2, utilizando a Classificação Hierárquica Descendente. Resultados: o software gerou seis classes, compondo duas categorias: “Saberes e práticas de mães ribeirinhas sobre vacinação” e “Importância da educação em saúde e o papel dos profissionais de saúde no compartilhamento de informações sobre vacinação”. Conclusão: discutir os saberes de mães ribeirinhas sobre vacinação e sua influência na tomada de decisão permitiu refletir criticamente sobre as práticas no cotidiano dessa população, oportunizando aos profissionais de saúde repensar estratégias, principalmente nas ações educativas.

https://doi.org/10.1590/ce.v28i0.88275

Receptor-Like Kinase (RLK) as a candidate gene conferring resistance to Hemileia vastatrix in coffee
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Almeida, Dênia Pires de

; Castro, Isabel Samila Lima

; Mendes, Tiago Antônio de Oliveira

; Alves, Danúbia Rodrigues

; Barka, Geleta Dugassa

; Barreiros, Pedro Ricardo Rossi Marques

; Zambolim, Laércio

; Sakiyama, Ney Sussumu

; Caixeta, Eveline Teixeira

Scientia Agricola

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2021, Volume 78 N. 6 elocation e20200023

Abstract: En | Text: En | PDF: En

ABSTRACT: The biotrophic fungus Hemileia vastatrix causes coffee leaf rust (CLR), one of the most devastating diseases in Coffea arabica . Coffee, like other plants, has developed effective mechanisms to recognize and respond to infections caused by pathogens. Plant resistance gene analogs (RGAs) have been identified in certain plants as candidates for resistance ( R ) genes or membrane receptors that activate the R genes. The RGAs identified in different plants possess conserved domains that play specific roles in the fight against pathogens. Despite the importance of RGAs, in coffee plants these genes and other molecular mechanisms of disease resistance are still unknown. This study aimed to sequence and characterize candidate genes from coffee plants with the potential for involvement in resistance to H. vastatrix . Sequencing was performed based on a library of bacterial artificial chromosomes (BAC) of the coffee clone ‘Híbrido de Timor’ (HdT) CIFC 832/2 and screened using a functional marker. Two RGAs, HdT_LRR_RLK1 and HdT_LRR_RLK2, containing the motif of leucine-rich repeat-like kinase (LRR-RLK) were identified. Based on the presence or absence of the HdT_LRR_RLK2 RGA in a number of differential coffee clones containing different combinations of the rust resistance gene, these RGAs did not correspond to any resistance gene already characterized (SH1-9). These genes were also analyzed using qPCR and demonstrated a major expression peak at 24 h after inoculation in both the compatible and incompatible interactions between coffee and H. vastatrix . These results are valuable information for breeding programs aimed at developing CLR-resistant cultivars, in addition to enabling a better understanding of the interactions between coffee and H. vastatrix .

https://doi.org/10.1590/1678-992x-2020-0023 1033 downloads

Implications for Clinical Practice from a Multicenter Survey of Heart Failure Management Centers
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Bocchi, Edimar Alcides

; Moreira, Henrique Turin

; Nakamuta, Juliana Sanajotti

; Simões, Marcus Vinicius

; Casas, Alberto de Almeida Las

; Costa, Altamiro Reis da

; Assis, Amberson Vieira de

; Durães, André Rodrigues

; Pereira-Barretto, Antonio Carlos

; Ravessa, Antonio Delduque de Araujo

; Macedo, Ariane Vieira Scarlatelli

; Biselli, Bruno

; Pinto, Carolina Maria Nogueira

; Filho, Conrado Roberto Hoffmann

; Costantini, Costantino Roberto

; Almeida, Dirceu Rodrigues

; Santos Jr, Edval Gomes dos

; Soliva Junior, Erwin

; Figueiredo, Estevão Lanna

; Albuquerque, Felipe Neves de

; Paulitsch, Felipe

; Neuenschwander, Fernando Carvalho

; Figueiredo Neto, José Albuquerque de

; Brito, Flavio de Souza

; Lopes, Heno Ferreira

; Villacorta, Humberto

; Souza Neto, João David de

; Sepulveda, João Mariano

; Ayoub, José Carlos Aidar

; Vilela-Martin, José F.

; Cardoso, Juliano Novaes

; Uemura, Laercio

; Moura, Lidia Zytynski

; Maia, Lilia Nigro

; Oliveira, Lucia Brandão de

; Maia, Lucimir

; Silva, Luís Beck da

; Gowdak, Luís Henrique Wolff

; Danzmann, Luiz Claudio

; Andrade, Marcus

; Braile-Sternieri, Maria Christiane Valeria Braga

; Moreira, Maria da Consolação Vieira

; França Neto, Olimpio R

; Filho, Otavio Rizzi Coelho

; Esteves, Paulo Frederico

; Raupp-da-Rosa, Priscila

; Silva, Ricardo Jorge de Queiroz e

; Mourilhe-Rocha, Ricardo

; Viégas, Ruy Felipe Melo

; Rassi, Salvador

; Mangili, Sandrigo

; Kaiser, Sergio Emanuel

; Martins, Silvia Marinho

; Kawabata, Vitor Sergio

Clinics

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2021, Volume 76 elocation e1991

Abstract: En | Text: En | PDF: En

OBJECTIVES: This observational, cross-sectional study based aimed to test whether heart failure (HF)-disease management program (DMP) components are influencing care and clinical decision-making in Brazil. METHODS: The survey respondents were cardiologists recommended by experts in the field and invited to participate in the survey via printed form or email. The survey consisted of 29 questions addressing site demographics, public versus private infrastructure, HF baseline data of patients, clinical management of HF, performance indicators, and perceptions about HF treatment. RESULTS: Data were obtained from 98 centers (58% public and 42% private practice) distributed across Brazil. Public HF-DMPs compared to private HF-DMP were associated with a higher percentage of HF-DMP-dedicated services (79% vs 24%; OR: 12, 95% CI: 94-34), multidisciplinary HF (MHF)-DMP [84% vs 65%; OR: 3; 95% CI: 1-8), HF educational programs (49% vs 18%; OR: 4; 95% CI: 1-2), written instructions before hospital discharge (83% vs 76%; OR: 1; 95% CI: 0-5), rehabilitation (69% vs 39%; OR: 3; 95% CI: 1-9), monitoring (44% vs 29%; OR: 2; 95% CI: 1-5), guideline-directed medical therapy-HF use (94% vs 85%; OR: 3; 95% CI: 0-15), and less B-type natriuretic peptide (BNP) dosage (73% vs 88%; OR: 3; 95% CI: 1-9), and key performance indicators (37% vs 60%; OR: 3; 95% CI: 1-7). In comparison to non- MHF-DMP, MHF-DMP was associated with more educational initiatives (42% vs 6%; OR: 12; 95% CI: 1-97), written instructions (83% vs 68%; OR: 2: 95% CI: 1-7), rehabilitation (69% vs 17%; OR: 11; 95% CI: 3-44), monitoring (47% vs 6%; OR: 14; 95% CI: 2-115), GDMT-HF (92% vs 83%; OR: 3; 95% CI: 0-15). In addition, there were less use of BNP as a biomarker (70% vs 84%; OR: 2; 95% CI: 1-8) and key performance indicators (35% vs 51%; OR: 2; 95% CI: 91,6) in the non-MHF group. Physicians considered changing or introducing new medications mostly when patients were hospitalized or when observing worsening disease and/or symptoms. Adherence to drug treatment and non-drug treatment factors were the greatest medical problems associated with HF treatment. CONCLUSION: HF-DMPs are highly heterogeneous. New strategies for HF care should consider the present study highlights and clinical decision-making processes to improve HF patient care.

https://doi.org/10.6061/clinics/2021/e1991 870 downloads

Estimating the area and weight of cactus forage cladodes using linear dimensions
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Lucena, Leandro Ricardo Rodrigues de

; Leite, Maurício Luiz de Mello Vieira

; Simões, Vicente José Laamon Pinto

; Nóbrega, Camila

; Almeida, Mirna Clarissa Rodrigues

; Simplício, Josimar Bento

Acta Scientiarum. Agronomy

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2021, Volume 43 elocation e45460

Abstract: En | Text: En | PDF: En

ABSTRACT. The forage palm is one of the main forages of ruminants in semiarid regions. Measurements of leaf area are required in agronomic studies because they are one of the main parameters used to evaluate plant growth. The objective of this study was to validate and define the best models for estimating the area and weight of Giant Sweet clone (Nopalea cochenillifera) forage cladodes in a non-destructive way based on the linear dimensions of length, width and thickness. There were 432 randomly measured cladodes at 550 days after planting. The length, width and thickness of each cladode were measured using a digital calliper. The cladodes were weighed individually. The cladode area was calculated by the gravimetric method. The power regression model was the most efficient method to explain the cladode area as a function of the product of length by width, while the gamma model was the most efficient method to explain the weight of cladodes as a function of the product of length by width and thickness. The power model, R C A ̂ = L W 0.982, and gamma model, W C ̂ = 0.536 T + 0.028 L W, were used to determine the area and weight of Nopalea cochenillifera Giant Sweet clone cladodes, respectively, based on the values of linear dimensions measured independently of the order of the cladode.

https://doi.org/10.4025/actasciagron.v43i1.45460 774 downloads

QUALITY, ANTIOXIDANT AND ENZYMATIC ACTIVITIES OF FACHEIRO (Pilosocereus pachycladus RITTER) FRUITS DURING MATURATION
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RODRIGUES, THIANE DE LIMA

; SOUSA, ALEX SANDRO BEZERRA DE

; SILVA, MARIANY CRUZ ALVES DA

; NASCIMENTO, RICARDO DE SOUSA

; SOUSA, FRANCISCO DE ASSYS ROMERO DA MOTA

; SILVA, SILVANDA DE MELO

Revista Caatinga

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dec 2019, Volume 32 N. 4 Pages 1092 - 1103

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

RESUMO Os frutos de Cactaceas do Nordeste Brasileiro têm sido alvo de muitos estudos etnobotânicos e de qualidade funcional. No entanto, ainda há um número considerável de espécies pouco exploradas, como o facheiro (Pilosocereus pachycladus Ritter), planta nativa e de ampla ocorrência e uso na Caatinga. O objetivo desta pesquisa foi avaliar a qualidade, atividade antioxidante e da peroxidase (POD) de frutos do facheiro durante a maturação. Os frutos foram colhidos de áreas de ocorrência de plantas em três estádios de maturação, com base na coloração do epicarpo (V - verde, IP - verde com início de coloração roxa e R - completamente roxo), do município de Pocinhos, Paraíba. Foi realizado um levantamento de termos descritores sensoriais de aparência dos frutos e, em seguida, avaliações físicas, físico-químicas, compostos bioativos, atividade antioxidante e da POD durante a maturação. Os frutos foram descritos como bagas carnosas, com epicarpo liso, formato redondo-achatado, cor roxa opaca, polpa suculenta e macia quando maduros. A qualidade variou durante a maturação, sendo as mudanças mais expressivas as de coloração: tornou-se mais roxa com o avanço da maturação, proporcionando um claro indicador de maturidade. Com a maturação, observou-se um aumento nos conteúdos de betalaínas e polifenóis extraíveis totais, bem como a atividade antioxidante, pela captura do radical DPPH, principalmente na polpa, A polpa do fruto de Pilosocereus pachycladus é uma fonte importante de betalaínas, principalmente betacianinas. Durante a maturação, a atividade da POD diminuiu no pericarpo e aumentou na polpa e foi fortemente correlacionada com a presença de betalaínas e com a atividade antioxidante.

ABSTRACT The fruit of Cactaceas from northeastern Brazil have been the object of many ethnobotanical and functional quality studies. However, a considerable number of species remain poorly exploited, such as the facheiro (Pilosocereus pachycladus Ritter), a native Brazilian plant widely occurring and used in the Caatinga. The objectives of this research were to evaluate the quality, and antioxidant and enzymatic activities of the facheiro fruit during maturation. Fruits were harvested from areas of occurrence of plants in the Paraíba State, Brazil, at three maturity stages, which were determined based on the color of the epicarp (G - green, IP - green with purple traces, and R - completely purple). It was carried out a survey of terms sensorial descriptor terms for fruit appearance and then evaluated the physical, physicochemical, bioactive compounds, antioxidant and peroxidase (POD) activities during maturation. The fruit were described as fleshy berries, with a smooth epicarp; a round, flat shape; opaque purple color; and juicy and soft pulp when ripe. Quality varied during maturation, with the most significant changes being in coloration: the fruit became more purple over time, providing a clear indicator of maturity. With maturation, there was an increase in the content of betalains and total extractable polyphenols, as well as antioxidant activity, by DPPH radical capture method, mainly in the pulp. The pulp of the Pilosocereus pachycladus fruit is an important source of betalains, primarily betacyanins. During maturation, POD activity decreased in the pericarp and increased in the pulp and was strongly correlated with the presence of betalains and with antioxidant activity.

https://doi.org/10.1590/1983-21252019v32n426rc 663 downloads

Spatio-temporal variability of erosivity in Mato Grosso, Brazil
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Raimo, Luis Augusto Di Loreto Di

; Amorim, Ricardo Santos Silva

; Couto, Eduardo Guimarães

; Nóbrega, Rodolfo Luiz Bezerra

; Torres, Gilmar Nunes

; Bocuti, Edwaldo Dias

; Almeida, Cristiana Oliveira Silva

; Rodrigues, Rafael Vinicius

Revista Ambiente & Água

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2018, Volume 13 N. 6 elocation e2276

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

Resumo O impacto da chuva com a superfície de solos descobertos pode causar a desagregação de partículas e iniciar processos erosivos. Esta capacidade da chuva causar erosão em solos sem cobertura é chamada de erosividade e é expressa como R na Equação Universal de Perda de Solo. Áreas utilizadas com agricultura apresentam grau de susceptibilidade variável ao longo do ano, devido as oscilações nas taxas de exposição do solo e mudança da vegetação. Considerando que aproximadamente 30 milhões de hectares de Mato Grosso, no Brasil, são utilizados com agricultura, objetivou-se com o presente estudo estimar e mapear a variabilidade espacial e temporal da erosividade em seu território. Primeiramente, foram estimados valores de erosividade mensal (EI30) e anual (R) para 158 estações que, posteriormente, foram espacializados pelo método de krigagem. Observou-se que no estado de Mato Grosso predominam valores muito altos de R ao norte e altos e médio-altos ao sul. O valor médio de R é igual à 8835 MJ mm ha-1 h-1 ano-1, considerado alto. Noventa e um porcento do R se concentra no período entre os meses de outubro e abril, correspondente a estação chuvosa. Os maiores valores de R foram observados nas macrorregiões noroeste, norte, oeste e médio norte do estado de Mato Grosso.

Abstract The impact of rainfall on surfaces lacking vegetal cover can dissociate soil particles, thereby initiating the erosion process. This is known as rainfall erosivity and is expressed by the R factor in the Universal Soil Loss Equation. Agricultural areas often show seasonally erosion susceptibility throughout the year due to oscillations of the soil exposure rate and the vegetation change. Considering that approximately 30 million ha of the Mato Grosso State in Brazil is used for agriculture, this study aimed to predict and map the spatial and temporal variability of its territory. We evaluated the monthly (EI 30) and annual (R) erosivity for 158 rain gauge stations and spatialized the values of EI 30 and R by the Kriging method. It was observed that R values ranked as very high in the north, and high and medium-high in the south of Mato Grosso state. The mean value is 8835 MJ mm ha-1 h-1 year-1, considered high. Ninety-one percent of the annual erosivity was concentrated in the period between October and April, corresponding to the rainy season. The highest R factor values were found in the macro-regions of the northwest, north, west and medium-north of Mato Grosso State.

https://doi.org/10.4136/ambi-agua.2276 1074 downloads

Genetic divergence among castor bean lines and parental strains using ward’s method based on morpho-agronomic descriptors
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Silva, Adielle Rodrigues da

; Silva, Simone Alves

; Santos, Laurenice Araujo dos

; Souza, Deoclides Ricardo de

; Araujo, Gilmara de Melo

; Moreira, Ricardo Franco Cunha

Acta Scientiarum. Agronomy

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sep 2017, Volume 39 N. 3 Pages 307 - 313

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

RESUMO. Este trabalho objetivou avaliar a divergência genética entre linhagens e parentais de mamoneira do Banco de germoplasma da Universidade Federal do Recôncavo da Bahia, por meio de descritores morfoagronômicos. O experimento foi conduzido no período de 2014 a 2015, com 208 tratamentos representados pelos acessos do Banco, avaliados no delineamento em blocos casualizados, estabelecendo a homogeneidade das condições experimentais com todos os tratamentos igualmente repetidos em quatro blocos. A análise de divergência genética foi realizada pelo método Ward e pelo o método de Tocher por meio da distância de Gower, sendo esses métodos de agrupamento utilizados em estudos com mamoneira, com o auxílio dos programas estatísticos R e GENES. Os resultados revelam a formação de 21 grupos para 13 descritores morfoagronômicos, sendo seis qualitativos e sete quantitativos, indicando a presença de variabilidade no Banco. Os grupos que apresentam acessos promissores para as características de interesse agronômico como precocidade, deiscência dos frutos, estatura e produtividade, são 2, 7, 8, 10, 14, 15, 16 e 17, sugerindo possíveis cruzamentos entre estes. Os descritores que mais contribuem para a divergência são produtividade, estatura da planta, número de sementes por racemo, florescimento e peso de sementes por racemo.

ABSTRACT. This study sought to evaluate the genetic divergence among castor lines and parental strains in the germplasm bank at the Federal University of Recôncavo da Bahia (Universidade Federal do Recôncavo da Bahia) using morpho-agronomic descriptors. This experiment was conducted from 2014 to 2015 with 208 treatments represented by bank accessions that were analyzed using a randomized block design, which established homogeneity of the experimental conditions with all treatments repeated in four blocks. The genetic divergence analysis was performed using Ward’s method and Tocher’s method based on Gower’s distance, which are two clustering methods used in studies with castor beans, with the help of the statistical programs R and GENES. The results revealed the formation of 21 groups for 13 morpho-agronomic descriptors, six qualitative and seven quantitative, indicating the presence of variability in the bank. The groups containing promising accessions for the characteristics of agronomic interest, including precociousness, fruit dehiscence, and plant height and yield were 2, 7, 8, 10, 14, 15, 16, and 17, which suggested potential hybrid crosses. The descriptors with the greatest contribution to variance were yield, plant height, the number of seeds per raceme, flowering and seed weight per raceme.

https://doi.org/10.4025/actasciagron.v39i3.32504 846 downloads

Transcatheter Valve-in-Valve Repositioning of CoreValve® Evolut™ Rin Aortic Prosthesis
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Azevedo, Ana Isabel

; Ladeiras-Lopes, Ricardo

; Rodrigues, Alberto

; Braga, Pedro

; Ribeiro, Vasco Gama

Arquivos Brasileiros de Cardiologia

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jan 2016, Volume 106 N. 1 Pages 76 - 76

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

https://doi.org/10.5935/abc.20160007 1162 downloads

Lesões em praticantes amadores de corrida
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Araujo, Mariana Korbage de

; Baeza, Ricardo Maletta

; Zalada, Sandro Ricardo Benites

; Alves, Pedro Benzam Rodrigues

; Mattos, Carlos Augusto de

Revista Brasileira de Ortopedia

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oct 2015, Volume 50 N. 5 Pages 537 - 540

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

R E S U M O Objetivos: Verificar a frequência e a gravidade das lesões que acometem praticantes amadores de corrida. Métodos: O estudo foi conduzido por meio de questionário aplicado a 204 corredores amadores. Foram excluídos do estudo menores de idade e pessoas sem prática de corrida. Número, tipo, topografia e grau de gravidade das lesões, além de idade e sexo, foram os dados coletados. Resultados: Observou-se predomínio de atletas do sexo masculino, idade média de 32,6 ± 9,3 anos com variação de 18 a 68 anos. As lesões foram classificadas como leves e afastaram o atleta da prática de corrida por menos de oito dias. Entorses, lesões bolhosas e escoriações foram as lesões mais frequentes, localizadas mais frequentemente nos membros inferiores, com predomínio nos pés. Conclusão: Na prática de corrida, entorses, lesões bolhosas e escoriações são frequentes,porém são leves e acometem mais os membros inferiores.

ABSTRACT OBJECTIVES: To determine the frequency and severity of injuries that affect amateur runners. METHODS: This study was conducted by means of a questionnaire applied to 204 amateur runners. Individuals who were under the age of 18 years and those who were unpracticed runners were excluded. The data gathered comprised the number, type, site and degree of severity of the injuries and the individuals' age and sex. RESULTS: It was observed that male athletes predominated. The mean age was 32.6 ± 9.3 years with a range from 18 to 68 years, and the injuries were classified as mild, keeping the athlete away from practicing running for fewer than eight days. Sprains, blisters and abrasions were the most frequent injuries, located most often on the lower limbs and predominantly on the feet. CONCLUSION: In practicing running, sprains, blisters and abrasions occur frequently, but are mild injuries. They mostly affect the lower limbs.

https://doi.org/10.1016/j.rbo.2015.04.003 14579 downloads

10.

Osseointegration of Hydroxyapatite Implants in Rat Tibial Defects with Sciatic Nerve Injury
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da Cunha, Marcelo Rodrigues

; Laraia, Isabela Ortiz

; Franco, Guacira R

; Miguel, Natalia N

; Maciel, Ana A

; dos Santos, Geovane Ribeiro

; Isayama, Ricardo Noboro

International Journal of Morphology

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jun 2015, Volume 33 N. 2 Pages 620 - 625

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

Bone metabolism is influenced by different factors and muscle activity acts as a stimulator of bone plasticity. Conditions such as nerve injuries can compromise bone physiology due to muscle inactivity. Preview studies have shown that nerve damage reduces P substance and calcitonin gene-related peptides, also known as neuropeptides that may have a key role on bone healing. Therefore, this study evaluated the osseointegration of hydroxyapatite implants in tibial defects of rats submitted to unilateral sciatic nerve section. Twelve Wistar rats were divided into two groups (G1 and G2). In G1, the sciatic nerve was left intact and in G2 the left sciatic nerve was completely sectioned. An experimental tibial bone defect was then created in both groups and filled with hydroxyapatite granules. The animals were sacrificed 2 months after implantation and samples were submitted to macroscopic inspection and histological analysis. Good radiopacity of the hydroxyapatite granules and radiographic definition of the bone defect were noted. Histologic analysis revealed formation of new bone adjacent to the hydroxyapatite granules in G1 and, to a lesser extent, in G2 in which the proliferation of connective tissue predominated at the implant site. The formation of new bone stimulated by hydroxyapatite in bone defects can be expected even in animals with limb paralysis due to nerve injury; however, bone formation occurs at a slower speed in these animals and the volume of newly formed bone is lower.

El metabolismo óseo está influenciado por diferentes factores y la actividad muscular como un estimulador de la plasticidad ósea. Condiciones tales como lesiones nerviosas pueden comprometer la fisiología ósea debido a la inactividad muscular. Estudios previos han demostrado que el daño nervioso reduce la sustancia P y el péptido relacionado con el gen de la calcitonina, también conocidos como neuropéptidos que pueden tener un papel clave en la cicatrización ósea. Este estudio evaluó la oseointegración de los implantes de hidroxiapatita en defectos tibiales de ratas sometidas a la sección del nervio ciático unilateralmente. Doce ratas Wistar se dividieron en dos grupos (G1 y G2). En G1, el nervio ciático se dejó intacto y en el G2 el nervio ciático izquierdo fue completamente seccionado. Un defecto óseo tibial fue creado experimentalmente en ambos grupos y se rellenó con gránulos de hidroxiapatita. Los animales se sacrificaron 2 meses después de la implantación y las muestras fueron sometidas a inspección macroscópica y el análisis histológico. Se observó buena radiopacidad de los gránulos de hidroxiapatita y definición radiográfica del defecto óseo. El análisis histológico reveló neoformación ósea adyacente a los gránulos de hidroxiapatita en G1 y, en menor medida en G2, donde la proliferación de tejido conectivo predominó en el sitio de implante. La neoformación ósea estimulada por hidroxiapatita en defectos óseos se puede esperar incluso en animales con parálisis de los miembros producto de una lesión nerviosa; sin embargo, la formación de hueso se produce a menor velocidad en estos animales y su volumen es menor.

966 downloads

11.

Human mobility on the Brazilian coast: an analysis of strontium isotopes in archaeological human remains from Forte Marechal Luz Sambaqui
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Bastos, Murilo Q. R

; Souza, Sheila M. F. Mendonça de

; Santos, Roberto V

; Lima, Bárbara A. F

; Santos, Ricardo V

; Rodrigues-Carvalho, Claudia

Anais da Academia Brasileira de Ciências

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jun 2011, Volume 83 N. 2 Pages 731 - 743

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

O presente estudo investigou isótopos de estrôncio em esmalte dentário de 32 remanescentes humanos do sambaqui do Forte Marechal Luz, Santa Catarina, Brasil, com o objetivo de identificar indivíduos locais e não-locais. O sítio arqueológico apresenta fragmentos de cerâmica em suas camadas arqueológicas mais recentes. Além das amostras humanas, foram analisadas amostras de esmalte dentário de espécimes de fauna terrestre (87Sr/86Sr = 0,71046 a 0,71273) e fauna marinha (87Sr/86Sr = 0,70917). A razão 87Sr/86Sr dos indivíduos classificados como locais variou de 0,70905 a 0,71064, sendo próxima a razão de estrôncio existente nos oceanos e distante da razão obtida para a fauna terrestre do mesmo sítio, indicando uma influência marinha na origem do estrôncio dos habitantes desse sambaqui. Foram identificados de três indivíduos não locais (87Sr/86Sr = 0,70761 a 0,70835), sepultados em ambas camadas arqueológicas sem evidência e com evidência de cerâmica. Estes indivíduos podem ter origem no planalto catarinense, no entorno do município de Lages, ou do planalto curitibano. A ocorrência de uma pequena diferença entre as razões isotópicas dos indivíduos locais sepultados nas camadas sem evidência de cerâmica, daqueles sepultados nas camadas ceramistas, sugere a possibilidade de uma mudança nos padrões de alimentação entre esses dois momentos de ocupação do sítio

This study investigated strontium isotopes in the dental enamel of 32 human skeletons from Forte Marechal Luz sambaqui (shellmound), Santa Catarina, Brazil, aiming at identifying local and non-local individuals. The archeological site presents pot sherds in the uppermost archeological layers. Dental enamel was also examined from specimens of terrestrial fauna (87Sr/86Sr = 0. 71046 to 0. 71273) and marine fauna (87Sr/86Sr = 0. 70917). The 87Sr/86Sr isotope ratio for individuals classified as locals ranged from 0. 70905 to 0. 71064 and was closer to the isotope ratio of the seawater than to the ratio of the terrestrial fauna, indicating a strong influence of marine strontium on the inhabitants of this sambaqui. The results indicate the existence of three non-local individuals (87Sr/86Sr = 0. 70761 to 0. 70835), buried in both the level without pottery and the layer with pottery, possibly originated from the Santa Catarina Plateau, close to the municipality of Lages, or from the Curitiba Plateau. The occurrence of a slight difference between the isotope ratios of local individuals buried in the archeological layer without pottery, when compared to those in the layer with pottery, suggests a possible change in dietary patterns between these two moments in the site's occupation

3744 downloads

12.

The fragile x-associated tremor and ataxia syndrome (FXTAS)
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Capelli, Leonardo Pires

; Gonçalves, Márcia Rúbia Rodrigues

; Leite, Claudia C

; Barbosa, Egberto R

; Nitrini, Ricardo

; Vianna-Morgante, Angela M

Arquivos de Neuro-Psiquiatria

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oct 2010, Volume 68 N. 5 Pages 791 - 798

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

A FXTAS (síndrome de tremor e ataxia associada ao X frágil) é uma doença neurodegenerativa de início tardio que afeta principalmente homens acima dos 50 anos de idade, portadores de pré-mutação do gene FMR1. A mutação completa desse gene é responsável pela síndrome do cromossomo X frágil (SXF), a causa mais comum de deficiência mental herdada. Indivíduos afetados pela FXTAS geralmente apresentam tremor de intenção e ataxia de marcha que podem estar associados a sinais radiológicos ou neuropatológicos específicos. Outras características comumente observadas são parkinsonismo, declínio cognitivo, neuropatia periférica e disfunções autonômicas. Quase uma década após sua caracterização clínica, a FXTAS é mal conhecida por médicos no Brasil. Esta revisão apresenta o conhecimento atual sobre os aspectos clínicos, genéticos e diagnósticos da síndrome.

FXTAS (Fragile X-associated tremor and ataxia syndrome) is a late- onset neurodegenerative disorder affecting mainly men, over 50 years of age, who are carriers of the FMR1 gene premutation. The full mutation of this gene causes the fragile X syndrome (FXS), the most common cause of inherited mental retardation. Individuals affected by FXTAS generally present intention tremor and gait ataxia that might be associated to specific radiological and/or neuropathological signs. Other features commonly observed are parkinsonism, cognitive decline, peripheral neuropathy and autonomic dysfunction. Nearly a decade after its clinical characterization, FXTAS is poorly recognized in Brazil. Here we present a review of the current knowledge on the clinical, genetic and diagnostic aspects of the disease.

10377 downloads

13.

Soil and leaf fertilization of lettuce crop with cow urine
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Oliveira, Nelson Licínio C de

; Puiatti, Mário

; Santos, Ricardo Henrique S

; Cecon, Paulo R

; Rodrigues, Pedro Henrique R

Horticultura Brasileira

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dec 2009, Volume 27 N. 4 Pages 431 - 437

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

A utilização da urina de vaca pode ser considerada uma prática de custo baixo para os produtores rurais. Todavia, a sua eficiência sobre as culturas carece de informações da pesquisa. Assim, objetivou-se avaliar o efeito da urina de vaca sobre o crescimento e produção da alface em experimento conduzido de 13 de janeiro de 2006 a 22 de março de 2006, com a cv. Regina 2000. O experimento foi constituído de 12 tratamentos, em esquema de parcelas subdivididas, delineamento de blocos ao acaso, com quatro repetições. Nas parcelas foram alocadas as aplicações das soluções de urina (solo e foliar) e, nas subparcelas, as concentrações (0,00; 0,25; 0,50; 0,75; 1,00 e 1,25%). A subparcela foi constituída por quatro fileiras de 1,75 m, espaçamento de 0,25 x 0,25 m e consideraram-se, como úteis, as seis plantas centrais das duas fileiras centrais. Na colheita foram avaliados a massa da matéria fresca (MFF) e seca de folhas (MSF); massa da matéria fresca (MFC) e seca de caule (MSC); comprimento de caule (CC); massa da matéria fresca (MFR) e seca de raízes (MSR); massa da matéria fresca (MFCA) e seca da cabeça (MSCA) e produtividade comercial (PROD). Exceto a MSR, que diminuiu e MSC e MFR que não foram alteradas na aplicação via foliar, as demais características avaliadas apresentaram incremento às concentrações aplicadas. Maior produtividade de cabeça foi obtida com concentrações de 1,25% (17,0 t ha-1) aplicada via foliar e de 1,01% (14,9 t ha-1) aplicada via solo correspondendo, respectivamente, a aumentos em produtividade de 28,1% e de 47,3%, comparados à testemunha. A aplicação foliar, comparada via solo, proporcionou maior MFF (0,50 e 1,25%), CC (0,50; 0,75 e 1,25%), MFC e MFR (0,5%), MFCA e PROD (0,50 e 1,25%) e menores MSC e MFR (1,25%) e MSR (1,0 e 1,25%). Sugere-se, no cultivo da alface, a aplicação das doses de solução de urina às concentrações de 1,25% via foliar ou de 1,0%, via solos.

The use of cow urine can be considered an agricultural practice of low cost for farmers. Nevertheless, its efficiency on crop needs research information. The present research aimed to evaluate the effect of cow urine on the growth and yield of 'Regina 2000' lettuce, in an experiment carried out from January 13, 2006 to March 22, 2006. The experiment was set up with 12 treatments, in a split-plot design and four completely randomized blocks. The soil and leaf applications were installed in the plot. In the split-plot, cow urine was applied at different concentrations (0.00; 0.25; 0.50; 0.75; 1.00 and 1.25 %). The plot presented four rows with 1.75 m each, in 0.25 x 0.25 m spacing. The six central plants of the two central rows formed the sampled split-plot. At harvest, the following variables were evaluated: fresh (FLM) and dry (DLM) leaf mass, fresh (FSM) and dry (DSM) stem mass, stem length (SL), fresh (FRM) and dry (DRM) root mass, fresh (FHM) and dry (DHM) head mass and commercial yield (CY). The increase in cow urine concentrations increased the performance of all lettuce characteristics, except DRM, which presented reduction, and DSM and FRM, which were not affected. The highest yield was obtained with the concentration of 1.25% (17.00 t ha-1) applied to leaves and with 1.01% (14.92 t ha-1), applied to soil, corresponding, respectively to increases of 28.1% and 47.3%, in comparison to the control. Application to leaves, in comparison to application to soil, resulted in greater FLM (0.50 and 1.25%), SL (0.50; 0.75 and 1.25%), FSM and FRM (0.5%), FHM and CY (0.50 and 1.25%), but lower DSM and FRM (1.25%) and DRM (1.0 and 1.25%). The application of cow urine solution at 1.25% to leaves or 1.0% to soil is recommended for lettuce crops.

8159 downloads

14.

Produção e qualidade de frutos de híbridos de pimentão (Capsicum annuum) em ambiente protegido em Manaus-AM
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Rodrigues, Isac Nogueira

; Lopes, Maria Teresa

; Lopes, Ricardo

; Gama, Aildo da Silva

; Rodrigues, Maria do Rosário

Acta Amazonica

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2007, Volume 37 N. 4 Pages 491 - 495

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

Na avaliação de cultivares de hortaliças, os rendimentos médios mais elevados nos ensaios de competição, associados aos fatores de qualidade, são utilizados como critérios de recomendação para plantio. O objetivo do trabalho foi avaliar nas condições climáticas de Manaus, AM, sob cultivo protegido, cinco híbridos comerciais de pimentão. O experimento foi conduzido em casa de vegetação do tipo arco, medindo 50,4m de comprimento com 7m de largura e coberta com plástico de 100 micras. Foi utilizado o delineamento experimental blocos ao acaso, com quatro repetições e parcelas de 20 plantas e avaliadas as características: peso (PF) e número (NF) de frutos produzidos por planta, peso médio de fruto (PMF), comprimento (CF) e diâmetro (DF) médio do fruto e relação CF/DF (RCD). Os dados foram submetidos a análises de variância e comparação de médias (Tukey). Foram verificadas diferenças estatisticamente significativas para todas as características avaliadas, com excessão para PF. Os híbridos Magali R e Nathalie apresentaram frutos mais alongados, formato preferido pelo consumidor local. Os frutos do híbrido Safari R, embora menos alongados que os de Magali R e Nathalie, apresentam maior peso médio e satisfazem a exigência do mercado local, sendo esse híbrido uma boa alternativa para diversificação dos híbridos cultivados.

In the evaluation of vegetable varieties, the highest average yield in the competition assays combined with quality factors are used as criteria recommended for planting. The object of the present work was to evaluate five commercial sweet pepper hybrids protectively cultivated in climatic conditions of Manaus. The experiment was carried out in an arc type vegetation house, measuring 50.4m in length and 7m in width and covered with 100 microns of plastic. The experimental design consisted of randomized blocks with four replications and plots of 20 plants. The following characteristics were evaluated: weight (FW) and number (FN) of fruits produced by each plant, average weight (FAW), length (FL), diameter (FD) of fruits, and FL/FD (RLD) relation. The data were submitted to analysis of variance and average comparison (Tukey). Although a significant effect of the total fruit weight was not verified, statistically significant differences occurred in the fruit traits. The Magali R and Nathalie hybrids, traditionally cultivated in protected environments in the Amazon, presented more elongated shaped fruits, which are preferred by consumers. The fruits of Safari R hybrids, though less elongated than the Magali R and Nathalie, presented a major weight average that satisfies the local market exigency, making it a good alternative to the diversification of cultivated hybrids.

https://doi.org/10.1590/S0044-59672007000400002 3061 downloads Cited 2 times in SciELO

15.

Avaliação de genótipos de tomateiro tipo Santa Cruz no período de verão, em Araguari, MG
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Peixoto, José Ricardo

; Silva, Rogério Pereira da

; Rodrigues, Fabrício de Ávila

; Juliatti, Fernando César

; Cecílio Filho, Arthur Bernardes

Pesquisa Agropecuária Brasileira

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dec 1999, Volume 34 N. 12 Pages 2253 - 2257

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

O trabalho foi desenvolvido na fazenda Jordão (município de Araguari, MG), na época do verão (período das águas), com o objetivo de verificar o desempenho agronômico de genótipos de tomateiro tipo Santa Cruz. Utilizou-se o delineamento experimental blocos casualizados, com 16 tratamentos (genótipos) e quatro repetições. A parcela experimental foi constituída por duas fileiras com 12 plantas cada, no espaçamento de 1,00 m entre linhas e 0,55 m entre plantas (1 planta/cova). Efetuaram-se 17 colheitas, sendo a primeira aos 69 dias após o transplante. Vários genótipos apresentaram um bom desempenho agronômico, principalmente Saladinha, Débora Plus, SM-16 e Atlas, podendo ser cultivados no período de verão. Apenas Saladinha e Atlas ultrapassaram 140 g de peso médio, destacando-se também em frutos do tipo extra AA. Observou-se uma correlação significativa e negativa com r = -0,52 e -0,54 na primeira avaliação, e r = -0,55 e -0,45 na segunda avaliação para a produção total e produção comercial, respectivamente, em relação à incidência de geminivírus nos diferentes genótipos. Os híbridos Saladinha e SM-16 apresentaram o menor número de plantas viróticas, enquanto Santa Clara Importada, Santa Clara, Jumbo AG-592 e IAC Santa Clara, apresentaram o maior número.

A field experiment was carried out in the Jordão farm in Araguari, MG, Brazil, during the summer season, to evaluate the agronomic potential of genotypes (Santa Cruz type) of tomato. A randomized block design was used with 16 treatments (genotypes) and four replicates. The experimental plot was made up of two lines (1.00 m between lines and 0.55 m between plants) with 12 plants each (1 plant/pit). Seventeen harvests were made, starting 69 days after transplanting. Several genotypes as Saladinha, Débora Plus, SM-16 and Atlas had a good agronomic performance, being recommended to be cultivated in the region, in the summer season. Classified as AA type, the Saladinha and Atlas showed an average of 140 g/fruit. During the experiment a negative correlation, r = -0.52 and -0.54, could be observed, in the first evaluation, and correlation r = -0.55 and -0.45 in the second evaluation between total production, and commercial production in relation to geminivirus infection, respectively, for the different genotypes. The Saladinha e SM-16 hybrids showed the lowest number of infected plants, while Santa Clara Imported, Santa Clara, Jumbo AG-592 and IAC Santa Clara showed the highest number.

1705 downloads Cited 1 time in SciELO

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