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Selection of genotypes of peach rootstock resistant to Meloidogyne incognita
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Nunes, Lívia Vieira

; Buonicontro, Dalila Sêni

; Rosado, Luciana Domiciano Silva

; Fonseca, Andressa Rodrigues

; Bruckner, Claudio Horst

; Santos, Carlos Eduardo Magalhaes dos

Revista Ceres

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may 2022, Volume 69 N. 3 Pages 267 - 273

Abstract: En | Text: En | PDF: En

ABSTRACT The aim of this study was to evaluate the genotypes developed by the Peach Breeding Program at the Federal University of Viçosa, as regards to resistance to M. incognita. Six rootstocks genotypes propagated by cuttings (713-07, 713-13, 913-3, 913-6, 913-11 and 913-17) and two rootstocks propagated by seeds (‘Okinawa’ and hybrid between scion cultivars Aurora 2 x Aurora 1), were evaluated. The experimental design was randomized block design with five replicates and one plant per experimental units. After establishing the plants in pot, maintained in a greenhouse, this were inoculated with 11.000 juveniles + eggs of M. incognita. Evaluations were performed at 140 days after inoculation. The roots were evaluated and the number of galls and egg mass in the roots were determined. The eggs were extracted from each plant for quantification and determination of the Reproduction Factor (RF) of the nematode. The peach genotypes 913-3, 913-6, 913-11, 913-17 and 713-7 showed an immune reaction to M. incognita. Genotype 713-13 showed susceptible reaction to M. incognita. The hybrid between scion cultivars Aurora 2 x Aurora 1 confirmed susceptible.

https://doi.org/10.1590/0034-737x202269030003

Aprendizaje cooperativo con teléfonos móviles en un contexto de vulnerabilidad: resultados en la convivencia
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Gómez Hernández, Patricia

; Monge López, Carlos

; Castillo Fernández, Héctor del

; Kassar, Monica del Carvalho Magalhaes

Revista electrónica de investigación educativa

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2022, Volume 24 elocation e17

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

Resumen El objetivo de esta investigación fue describir y comprender cómo una intervención en el aprendizaje cooperativo y el uso de teléfonos móviles en aulas de Educación Infantil y Primaria favorece la convivencia escolar en un contexto de vulnerabilidad socioeconómica y diversidad cultural. Se realizó un estudio de caso en una escuela brasileña (en la frontera con Bolivia) utilizando diferentes técnicas cualitativas para recopilar la información (observación participante, entrevistas semiestructuradas y grupo de discusión). Los resultados apuntan a la reducción de las conductas disruptivas, la desafección académica y la exclusión, lo que se atribuye principalmente a la combinación de algunos elementos cooperativos que se ven favorecidos por el teléfono móvil (interdependencia positiva, sentimiento de pertenencia, agrupamientos heterogéneos, responsabilidad individual, interacción promotora, identidad grupal y destrezas cooperativas). El uso educativo de teléfonos móviles con una metodología cooperativa, en este caso, mejoró la convivencia escolar en el grupo estudiado.

Abstract This research seeks to describe and understand how an intervention based on cooperative learning and the use of mobile phones in early childhood and elementary classrooms promotes harmonious relations in schools within a context of socioeconomic vulnerability and cultural diversity. A case study was conducted in a Brazilian school (on the Bolivian border), using different qualitative techniques to collect information (participant observation, semi-structured interviews, and a discussion group). The results point to a reduction in disruptive behavior, academic disengagement, and exclusion, attributed primarily to a combination of cooperative factors enhanced by the use of mobile telephones (positive interdependence, a sense of belonging, heterogeneous grouping, individual responsibility, stimulating interaction, group identity, and teamwork skills). In this case, the use of mobile phones in education, coupled with a cooperative methodology, improved school life in the group studied.

https://doi.org/10.24320/redie.2022.24.e17.4924

Relationship between Obesity and Coronary Artery Disease Defined by Coronary Computed Tomography Angiography
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Pereira, Lara Luiza Silvello

; Moraes, Gisele Marochi de

; Carneiro, Adriano Camargo de Castro

; Moreira, Valéria de Melo

; Bello, Juliana Hiromi Silva Matsumoto

; Prazeres, Carlos Eduardo Elias dos

; Rochitte, Carlos Eduardo

; Magalhaes, Tiago

International Journal of Cardiovascular Sciences

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feb 2020, Volume 33 N. 1 Pages 57 - 64

Abstract: En | Text: En | PDF: En

Abstract Background: Although associated with traditional cardiovascular risk factors, it is unclear whether obesity alone is associated with coronary artery disease (CAD). Objective: To investigate the role of obesity as a risk factor for CAD, defined by coronary computed tomography angiography (CCTA). Methods: This study retrospectively included 1,814 patients referred for CCTA in a hospital in São Paulo, from August 2010 to July 2012. CAD was identified by coronary calcium score and presence of coronary stenosis > 50%. Images were analyzed by two specialists, and the coronary findings were compared between obese and non-obese groups. A multivariate analysis model was used to assess obesity as an independent variable for the occurrence of obstructive CAD. Results: Among the study population, mean age was 58.5 +/- 11.5 years, 22.8% were obese (BMI = 30 kg/m2) and 66.3% were male. The prevalence of obstructive CAD was 18.4% in both groups. Obese patients had higher median calcium score compared to non-obese subjects (14.7 vs. 1.4, respectively, p = 0.019). In the multivariate analysis, obesity was not an independent factor for obstructive CAD (coefficient = -0.035, p = 0.102). Conclusion: Although no differences were observed in the prevalence of obstructive CAD between obese and non-obese individuals, coronary calcium scores were significantly in lower the latter group.

https://doi.org/10.5935/2359-4802.20190029 394 downloads

A equação de Cambridge e o Novo Teorema de Pasinetti nos modelos pós-keynesianos de crescimento e distribuição de renda
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Oreiro, José Luís

; Magalhaes, Luís Carlos G. de

Brazilian Journal of Political Economy

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sep 2019, Volume 39 N. 3 Pages 485 - 508

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

RESUMO Ao longo deste artigo procuramos avaliar a robustez teórica do assim chamado Novo Teorema de Pasinetti, segundo o qual numa economia na qual a diferenciação entre as propensões a poupar a partir dos lucros e dos salários deve-se a natureza da renda empresarial, não a filiação a uma classe social específica; a taxa de lucro ao longo da trajetória de crescimento de Golden Age é independente da propensão a poupar dos trabalhadores, sendo determinada pelo coeficiente de retenção de lucros das firmas, pela fração do investimento que as empresas desejam financiar com recursos de terceiros e pela taxa natural de crescimento.

ABSTRACT Throughout this article we try to evaluate the theoretical robustness of the so-called New Theorem of Pasinetti, according to which in an economy in which the differentiation between the propensities to save from the profits and the salaries is due to the nature of the business income, not the affiliation to a specific social class; the rate of profit along the Golden Age growth path is independent of workers ‘propensity to save, being determined by the firms’ profit retention coefficient, by the fraction of the investment firms wish to finance with third-party resources and by the natural rate growth.

https://doi.org/10.1590/0101-35172019-2991 1124 downloads

Methanolic extract of Urochloa humidicola on in vitro rumen fermentation
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Freitas, Rafaela Scalise Xavier de

; Nepomuceno, Delci de Deus

; Modesto, Elisa Cristina

; Pereira, Tatiana Pires

; Almeida, João Carlos de Carvalho

; Morais, Leonardo Fiusa de

; Pereira, Luiz Gustavo Ribeiro

; Machado, Fernanda Samarini

; Campos, Mariana Magalhaes

; Tomich, Thierry Ribeiro

Pesquisa Agropecuária Brasileira

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apr 2018, Volume 53 N. 4 Pages 504 - 513

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

Resumo: O objetivo deste trabalho foi avaliar o efeito da adição de extrato metanólico de Urochloa humidicola em quatro diferentes concentrações (0, 75, 150 e 250 g L-1) sobre a fermentação ruminal in vitro de Urochloa brizantha. As seguintes variáveis foram avaliadas pela técnica de produção de gás in vitro: parâmetros cinéticos; degradação ruminal da matéria seca; e produção e concentração dos gases metano e dióxido de carbono e dos ácidos graxos de cadeia curta acetato, propionato e butirato. A inclusão do extrato metanólico reduz a produção de gases oriundos da degradação dos carboidratos não fibrosos (fração A) em 9,55, 6,67 e 13,33%, respectivamente, às concentrações de 75, 150 e 250 g L-1, em comparação ao grupo controle, mas influencia negativamente a degradação da matéria seca de U. brizantha às concentrações de 150 e 250 g L-1. O extrato apresenta efeito quadrático negativo na produção de gás durante 12 e 24 horas de incubação de U. brizantha. O extrato de U. humidicola reduz a produção de metano e aumenta a produção de ácidos graxos de cadeia curta às concentrações de 75, 150, e 250 g L-1.

Abstract: The objective of this work was to evaluate the effect of the addition of the methanolic extract of Urochloa humidicola at four different concentrations (0, 75, 150, and 250 g L-1) on the in vitro rumen fermentation of Urochloa brizantha. The following variables were evaluated by the in vitro gas production technique: kinetic parameters; rumen degradation of dry matter; and production and concentration of the methane and carbon dioxide gases and of the acetate, propionate, and butyrate short-chain fatty acids. The addition of the methanolic extract reduces the production of gases generated from the degradation of non-fibrous carbohydrates (fraction A) in 9.55, 6.67, and 13.33%, respectively, at the concentrations of 75, 150, and 250 g L-1, compared with the control group, but it negatively affects the degradation of the dry matter of U. brizantha at the concentrations of 150 and 250 g L-1. The extract shows negative quadratic effect on gas production during 12 and 24 hours of U. brizantha incubation. The extract of U. humidicola reduces methane production and increases short-chain fatty acid production at the concentrations of 75, 150, and 250 g L-1.

https://doi.org/10.1590/s0100-204x2018000400012 856 downloads

Cerebrum-cervical arterial dissection in adults during sports and recreation
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Fragoso, Yara Dadalti

; Adoni, Tarso

; Amaral, Lazaro Luiz Faria do

; Braga, Flavio Tulio

; Brooks, Joseph Bruno Bidin

; Campos, Christiane Siqueira

; Comini-Frota, Elizabeth Regina

; Ferreira, Nelson Paes Fortes Diniz

; Giacon, Luciano Marcus Tirotti

; Gomes, Sidney

; Goncalves, Marcus Vinicius Magno

; Magalhaes, Pedro Silva Correa

; Matta, Andre Palma da Cunha

; Oliveira, Francisco Tomaz Meneses de

; Oliveira, Joao Felipe de

; Pierucettti, Marco Antonio

; Pereira, Samira Luísa dos Apostolos

; Pontes, Maciel Eduardo

; Siquineli, Fabio

; Tauil, Carlos Bernardo

; Troaini, Guilherme Navarro

Arquivos de Neuro-Psiquiatria

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apr 2016, Volume 74 N. 4 Pages 275 - 279

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

A dissecção das artérias cervicais é uma emergência médica. Embora de forma relativamente rara, certas atividades descritas como esportes e recreação podem ser a causa de dissecção arterial independentemente de trauma de crânio ou cervical. O propósito do presente estudo é apresentar uma série de casos de dissecção de artérias cérebro-cervicais em indivíduos durante ou logo após a prática destas atividades desportivas. Métodos Dados retrospectivos de pacientes com dissecção arterial relacionada à prática de esportes e recreação. Resultados Quarenta e um casos foram identificados. A artéria mais frequentemente afetada foi a vertebral. Uma grande variedade de atividades teve relação temporal com a dissecção arterial, sendo a corrida a mais frequente delas. Esta é a maior série de casos da literatura. Conclusão Dissecção arterial pode ser uma complicação da prática de esportes.

Dissection of cervical arteries constitutes a medical emergency. Although relatively rarely, activities classified as sports and recreation may be a cause of arterial dissection independently of neck or head trauma. The purpose of the present paper was to present a series of cases of cerebrum-cervical arterial dissection in individuals during or soon after the practice of these sports activities. Methods Retrospective data on patients with arterial dissection related to sports and recreation. Results Forty-one cases were identified. The most frequently affected vessel was the vertebral artery. A large variety of activities had a temporal relationship to arterial dissection, and jogging was the most frequent of these. This is the largest case series in the literature. Conclusion Arterial dissection may be a complication from practicing sports.

https://doi.org/10.1590/0004-282X20150150 2522 downloads

Work-related stress according to the demand-control model and minor psychic disorders in nursing workers
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Urbanetto, Janete de Souza

; Magalhaes, Maria Cristina Cademartori

; Maciel, Vanessa Oreda

; SantAnna, Viviane Massena

; Gustavo, Andreia da Silva

; Poli-de-Figueiredo, Carlos Eduardo

; Magnago, Tania Solange Bosi de Souza

Revista da Escola de Enfermagem da USP

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oct 2013, Volume 47 N. 5 Pages 1180 - 1186

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

Estudo transversal cujo objetivo foi avaliar a associação entre o estresse no trabalho, segundo o Modelo Demanda-Controle, e a ocorrência de Distúrbio Psíquico Menor (DPM) nos trabalhadores de enfermagem. Participaram 335 profissionais, sendo 245 técnicos de enfermagem, com idade predominante entre 20 e 40 anos. Os dados foram coletados utilizando-se a Job Stress Scale e o Self-Reporting Questionnaire-20. A análise foi realizada utilizando-se estatística descritiva e analítica. A prevalência de suspeição para DPM encontrada foi de 20,6%. Os trabalhadores nos quadrantes trabalho ativo e alto desgaste, do Modelo Demanda-Controle, apresentaram chances de desenvolver DPM, quando comparados com os situados no quadrante baixo desgaste. Conclui-se que o estresse afeta a saúde mental dos trabalhadores e que os aspectos relacionados a alta demanda psicológica e alto controle ainda necessitam de maiores aprofundamentos para que se entenda sua influência nos processos de adoecimento dos trabalhadores de enfermagem.

This was a cross-sectional study that aimed to assess the association between work-related stress according to the Demand-Control Model, and the occurrence of Minor Psychic Disorder (MPD) in nursing workers. The participants were 335 professionals, out of which 245 were nursing technicians, aged predominantly between 20 and 40 years. Data were collected using the Job Stress Scale and the Self-Reporting Questionnaire-20. The analysis was performed using descriptive and analytical statistics. The prevalence of suspected MPD was 20.6%. Workers classified in the quadrants active job and high strain of the Demand-Control Model presented higher potential for developing MPD compared with those classified in the quadrant low strain. In conclusion, stress affects the mental health of workers and the aspects related to high psychological demands and high control still require further insight in order to understand their influence on the disease processes of nursing workers.

Estudio transversal cuyo objetivo fue evaluar la asociación entre el estrés laboral, según el Modelo Demanda-Control, y la aparición de Trastorno Psíquico Menor (TPM) en los trabajadores de enfermería. Participaron 335 profesionales, siendo 245 técnicos de enfermería, con edad predominante entre 20 y 40 años. Los datos fueron recolectados utilizándose la Job Stress Scale y el Self-Reporting Questionnaire-20. El análisis se realizó mediante estadística descriptiva y analítica. La prevalencia de probable TPM encontrada fue del 20,6%. Los trabajadores en los cuadrantes trabajo activo y alto desgaste, del modelo demanda-control, presentan probabilidades de desarrollar TPM, en comparación con los situados en el cuadrante bajo desgaste. Se concluye que el estrés afecta la salud mental de los trabajadores y que los aspectos relacionados con la alta demanda psicológica y alto control todavía necesitan de mayores conocimientos para comprender su influencia en los procesos de enfermedad de los trabajadores de enfermería.

https://doi.org/10.1590/S0080-623420130000500024 11894 downloads Cited 9 times in SciELO

Work-related stress according to the demand-control model and minor psychic disorders in nursing workers
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Urbanetto, Janete de Souza

; Magalhaes, Maria Cristina Cademartori

; Maciel, Vanessa Oreda

; SantAnna, Viviane Massena

; Gustavo, Andreia da Silva

; Poli-de-Figueiredo, Carlos Eduardo

; Magnago, Tania Solange Bosi de Souza

Revista da Escola de Enfermagem da USP

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oct 2013, Volume 47 N. 5 Pages 1180 - 1186

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

https://doi.org/10.1590/S0080-623420130000500024 2 downloads Cited 9 times in SciELO

Environmental Effects on Thermal Properties of PEI/Glass Fiber Composite Materials
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Botelho, Edson Cocchieri

; Bravim Júnior, José Carlos

; Costa, Michelle Leali

; Faria, Maria Candida Magalhaes de

Journal of Aerospace Technology and Management

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jun 2013, Volume 5 N. 2 Pages 241 - 254

Abstract: En | Text: En | PDF: En

ABSTRACT: The aim of this study was to investigate the effects of hygrothermal exposure, ultraviolet (UV) radiation, salt spray and thermal shock aging on the thermomechanical behavior of glass fiber reinforced by poly (ether-imide) (PEI) composites. Dynamic mechanical (DMA) and Thermomechanical (TMA) analyses have been performed on the aged PEI composites after being submitted to the climatic chambers. Additional techniques have been used to characterize the laminates, such as optical microscopy and infrared spectroscopy (FT-IR) in order to evaluate possible structural changes in these materials. Slight changes were observed both in glass transition temperature and in thermal expansion coefficient as a result from the environmental conditioning used (hygrothermal, salt spray, UV radiation and thermal shock conditioning). Thus, when exposed to these conditions, PEI/glass fiber laminates maintain its compromise with the performance component.

https://doi.org/10.5028/jatm.v5i2.193 1037 downloads

10.

Occult hepatitis B virus infection among injecting drug users in the Central-West Region of Brazil
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Matos, Marcia Alves Dias de

; Ferreira, Renata Carneiro

; Rodrigues, Fabiana Perez

; Marinho, Tamiris Augusto

; Lopes, Carmen Luci Rodrigues

; Novais, Antonia Carlos Magalhaes

; Motta-Castro, Ana Rita Coimbra

; Teles, Sheila Araujo

; Souto, Francisco Jose Dutra

; Martins, Regina Maria Bringel

Memórias do Instituto Oswaldo Cruz

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may 2013, Volume 108 N. 3 Pages 386 - 389

Abstract: En | Text: En | PDF: En

The prevalence of occult hepatitis B virus (HBV) infection was investigated in 149 hepatitis B surface antigen (HBsAg) negative injecting drug users (IDUs) in the Central-West Region of Brazil. Of these individuals, 19 were positive for HBV DNA, resulting in an occult HBV infection prevalence of 12.7% (19/149); six of these 19 individuals had anti-HBV core and/or anti-HBV surface antibodies and 13 were negative for HBV markers. All IDUs with occult hepatitis B reported sexual and/or parenteral risk behaviours. All HBV DNA-positive samples were successfully genotyped. Genotype D was the most common (17/19), followed by genotype A (2/19). These findings reveal a high prevalence of occult HBV infection and the predominance of genotype D among IDUs in Brazil's Central-West Region.

https://doi.org/10.1590/S0074-02762013000300019 2627 downloads

11.

Human immunodeficiency virus type- 1 subtypes of infected patients in Espírito Santo, Brazil
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Cabral, Valéria P

; Cunha, Carla B

; Magalhaes, Eneida FL

; Pinto-Neto, Lauro F

; Couto-Fernandez, José Carlos

; Dietze, Reynaldo

; Morgado, Mariza G

; Ribeiro-Rodrigues, Rodrigo

Memórias do Instituto Oswaldo Cruz

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dec 2006, Volume 101 N. 8 Pages 881 - 885

Abstract: En | Text: En | PDF: En

Genetic variability of human immunodeficiency virus type - 1(HIV-1) is a potential threat for both diagnosis and treatment of HIV/AIDS, as well as the development of effective vaccines. Up to now, HIV subtypes circulating among HIV-positive patients in the state of Espírito Santo were not known. In the present study, blood samples from 100 therapy-naïve HIV-1 infected patients were collected and the HIV subtype was determined through the Heteroduplex Mobility Assay (HMA). Ninety-seven out of 100 studied samples were subtyped by HMA, 73 samples (75.2%) were from subtype B, 9 (9.3%) from subtype F, 3 (3.1%) from subtype C, 6 (6.2%) Benv/Fgag, and another 6 (6.2%) Fenv/Bgag, what suggests that recombinant viruses were present in the studied samples. Twenty-eight percent of the subtype B samples were represented by the Brazilian B" subtype, which were identified by RFLP with Fok I. Data presented here demonstrate that the epidemiological characteristics of the HIV epidemic in the state of Espírito Santo are similar to those from the other Southeastern states and helped to better understand the genetic polymorphism of HIV in Brazil.

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