Limpar
15.083 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, Jorge Fernando Soares Travassos da Rosa, Sueli Corrêa Guerreiro, Nicolas Dégallier, Elizabeth Salbé Travassos da Rosa, Amélia Paes de Andrade Travassos da Rosa,

Os autores descrevem a ocorrência de epidemias causadas pelo vírus Oropouche (ORO) nos Estados do Maranhão (MA) e Goiás (GO) em 1988. 36 amostras de vírus foram obtidas a partir da inoculação do sangue de 120 pacientes em camundongos recém nascidos. A doença foi caracterizada por febre, cefaléia, dores musculares, articulares, fotofobia, dor retro ocular, náuseas e tontura. 128 das 197 pessoas examinadas em Porto Franco, MA, tinham anticorpos inibidores da hemaglutinação (IH) para o agente e, em 106 ...

Tópico(s): Mosquito-borne diseases and control

1989 - UNIVERSIDADE DE SÃO PAULO | Revista do Instituto de Medicina Tropical de São Paulo

Jornais Acesso aberto

John Mander, J. J. R. Trethowan, Charles Raw, David L Williams, Richard Buckle, Elizabeth Nicholas, Harold Hobson, Alan Mcllwain, Hugh Winsor, Philip Day, Anthony Vice Editor, Antony Terry, Roger Nuttall, John Sparrow, Moira Keenan, Julian Symons, Cal McCrystal, Luis Jorge da Silva Maria, Elizabeth Good, Henry Brandon, Alix Coleman, John Russell, Jack Cox, Eric Langlands, Franco Zeffirelli, Max Marquis, Frederic Collins, R F Branch, Derek Jewell, Vivian Jenkins, E. C., J Bland, V B Lamb, Ian Coulter, Peter Willett, Guy Naylor, R. C. Robertson Glasgow, George Gray Secretary, Robin Marlar, Michael Hamlyn, Cyril Connolly, D. A. Hammersley, Sir Herbert Thompson, Michael Howard, Brian Crozier, Raymond Mortimer, Ivan Sharpe, Maxwell Boyd, Oliver Marriott, Evelyn Irons, John Barry, Peter Wilsher, Bryan Silcock, Michael Limb, Roger Mortimer, Ernestine Carter, Rev G W Butterworth, Desmond Shawe-Taylor, Stephen Coulter, Margaret Laing, Stephen Aris, Ronald Legge, Basil Easterbrook, Lanning Roper, Dilys Powell, Brigid Keenan, Lewis Wynne Bostock, Humphry Berkeley, Maxwell Boyd Motoring Correspondent, Ray Gosling, Richard Hughes, David Wiggins, Robert Carrier, Felix Aprahamian, Wyndham Thomas Director, Benjamin Pogrund, Michael Ratcliffe, Ian Coulter Industrial Correspondent, Quintin Hogg, Henry Longhurst, P G Coles, Lewis Chester, Peter Baker, Wilfred Williams, James Margach Political Correspondent, Hunter Davies, Brian Glanville, G V Mortimer, Michael Green, C. H. O'd. Alexander, Maurice Wiggin, Peta Fordham, Anthony Cowdy, J M Cocking, Alan Adams, Kenneth Konstam, John Mattison, Frederic J Osborn,

... Gelber (André Deutsch 25s) The Year in San Fernando by Michael Anthony (André Deutsch 18s) The Road ...

1965 - Gale Group | Sunday Times HA GDA

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, Jorge Fernando Soares Travassos da Rosa, Amélia Paes de Andrade Travassos da Rosa, Nicolas Dégallier, Francisco de Paula Pinheiro, Gregório Carrera Sá Filho,

Os autores revêem os aspectos ecoepidemiológicos apresentados pelos virus da encefalite de St. Louis (SLE), encefalites equinas Leste (EEE), Oeste (WEE) e Venezuelana [subtipos III, Mucambo (MUC) e IV, Pixuna (PIX)], decorrentes dos estudos realizados em diversas áreas da Região Amazônica brasileira, especialmente ao longo das rodovias e projetos de desenvolvimento. Esses vírus são amplamente distribuídos na Amazônia e pelo menos quatro deles, EEE, WEE, MUC e SLE já demonstraram ser patógenos do homem. ...

Tópico(s): Vector-Borne Animal Diseases

1991 - UNIVERSIDADE DE SÃO PAULO | Revista do Instituto de Medicina Tropical de São Paulo

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

José Tavares‐Neto, Amélia P. A. Travassos da Rosa, Pedro Fernando da Costa Vasconcelos, Jackson Maurício Lopes Costa, Jorge Fernando Soares Travassos da Rosa, Philip D. Marsden,

Foi realizado um estudo sorológico para verificação da presença de anticorpos para arbovírus em 288 indivíduos, residentes no povoado de Corte de Pedra, Valença, Bahia. Foram observados anticorpos inibidores de hemaglutinação e neutralizantes em 3.8% da amostra com a seguinte distribuição para flavivírus: Ilhéus (6), St. Louis (2), febre amarela (3), Rocio (1). Em um indivíduo, com residência anterior na Região Norte foram detectados anticorpos para Mayaro. Em 75 indivíduos testados aleatoriamente não ...

Tópico(s): HIV/AIDS oral health manifestations

1986 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Jorge Fernando Pereira, Diliane Barichello, Jéssica Rosset Ferreira, Jorge González Aguilera, Luciano Consoli, José Pereira da Silva Júnior, Sandro Bonow, Adeliano Cargnin,

Repeated blocks in the TaALMT1 promoter as well as a transposon insertion in the TaMATE1B upstream region have been correlated with the level of gene expression, organic acid efflux, and ultimately aluminum (Al3+) resistance in wheat (Triticum aestivum L.). In this study, we investigated the allelic polymorphism related to the TaALMT1 and TaMATE1B promoter regions in 300 Brazilian wheat genotypes and the correlation of that variation with root growth on acid soil. In addition, SSR markers were used ...

Tópico(s): Silicon Effects in Agriculture

2015 - Springer Science+Business Media | Molecular Breeding

Artigo Acesso aberto Revisado por pares

Pedro Fernando da Costa Vasconcelos, Elizabeth Salbé Travassos da Rosa, Jorge Fernando Soares Travassos da Rosa, Ronaldo Barros de Freitas, Nicolas Dégallier, Sueli Guerreiro Rodrigues, Amélia Paes de Andrade Travassos da Rosa,

Registramos a ocorrência de epidemia de dengue causada pelo sorotipo 2 (DEN 2) na cidade de Araguaina, estado do Tocantins (TO) situado no Brasil central. Quatrocentos indíviduos de 74 famílias, residentes nos bairros S. João, Araguaina Sul e Neblina foram entrevistados e sangrados, independentemente de terem adoecido ou não. Os soros tanto de adultos quanto de crianças de ambos os sexos foram usados para pesquisa de anticorpos inibidores da hemaglutinação (IH) e IgM através de ensaio imunoenzimático ( ...

Tópico(s): Vector-Borne Animal Diseases

1993 - UNIVERSIDADE DE SÃO PAULO | Revista do Instituto de Medicina Tropical de São Paulo

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, José Wellington Oliveira Lima, Maria L. Raposo, Sueli G. Rodrigues, Jorge Fernando Soares Travassos da Rosa, Silvia Maria Costa Amorim, Elizabeth Salbé Travassos da Rosa, Cleide M.P. Moura, Niedja Fonseca, Amélia P. A. Travassos da Rosa,

The island of São Luis in the State of Maranhão, constituted by the municipalities of São Luis-SL (835,428 inhabitants), São José de Ribamar-SJR (60,633 inhabitants) and Paço do Lumiar-PL (80,274 inhabitants), has been suffering dengue (DEN) fever epidemics since 1995, caused by DEN-1. In 1996, from August through October, an aleatory sero-epidemiologic survey was carried out in order to estimate the incidence of DEN infection and to analyze other clinical and epidemiological parameters. A questionnaire ...

Tópico(s): Malaria Research and Control

1999 - Brazilian Society of Tropical Medicine | Revista da Sociedade Brasileira de Medicina Tropical

Artigo Brasil Produção Nacional Revisado por pares

Bernard Mondet, Pedro Fernando da Costa Vasconcelos, Amélia P. A. Travassos da Rosa, Elizabeth Salbé Travassos da Rosa, S.G. Rodrigues, Jorge Fernando Soares Travassos da Rosa, Dominique Bicout,

In 1998, an epizootic of yellow fever (YF) killed many howler monkeys (Alouatta spp.) in eastern Amazonia near the city of Altamira. An infection level with YF virus of ~3.6% was determined from analysis of 456 females of Haemagogus janthinomys Dyar, the main enzootic YF vector in South America. One month later, a second study of 164 females captured in the same place led to infection levels of 0.8% for parous and 2.9% for nulliparous females. These results lead to the conclusion that vertical transmission, ...

Tópico(s): Vector-borne infectious diseases

2002 - Mary Ann Liebert, Inc. | Vector-Borne and Zoonotic Diseases

Revisão Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, Amélia P. A. Travassos da Rosa, Sueli G. Rodrigues, Elizabeth Salbé Travassos da Rosa, Nicolas Dégallier, Jorge Fernando Soares Travassos da Rosa,

A total of 187 different species of arboviruses and other viruses in vertebrates were identified at the Evandro Chagas Institute (IEC) from 1954 to 1998, among more than 10,000 arbovirus strains isolated from humans, hematophagous insects, and wild and sentinel vertebrates. Despite intensive studies in the Brazilian Amazon region, especially in Pará State, very little is known about most of these viruses, except for information on date, time, source, and method of isolation, as well as their capacity ...

Tópico(s): Viral Infections and Vectors

2001 - Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz | Cadernos de Saúde Pública

Artigo Revisado por pares

Esmeralda Santillán-Urquiza, Fernando Arteaga-Cardona, E. Hernandez-Herman, Prudencio Fidel Pacheco-Garcia, Roberto González-Rodríguez, Jeffery L. Coffer, M.E. Mendoza, Jorge Fernando Vélez‐Ruiz, M.A. Méndez-Rojas,

The introduction of biocompatible coatings onto nanoparticle surfaces can be synthetically challenging. In this work, calcium phosphate (brushite, CaHPO4⋅2H2O), iron oxide (hematite, α-Fe2O3), zinc oxide (ZnO), and CaHPO4@ZnO and α-Fe2O3@ZnO nanoparticles were synthesized and treated with the biocompatible, biodegradable, polysaccharide inulin {(2R,3S,4S,5R)-2-[[(2R,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxymethyl]-5-(hydroxymethyl)oxolane-2,3,4-triol} under mild conditions. The products ...

Tópico(s): Nanoparticle-Based Drug Delivery

2015 - Elsevier BV | Journal of Colloid and Interface Science

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Amélia P. A. Travassos da Rosa, Pedro Fernando da Costa Vasconcelos, Elizabeth Salbé Travassos da Rosa, Sueli Guerreiro Rodrigues, Bernard Mondet, Ana Cecília Ribeiro Cruz, Maria R.S. Sousa, Jorge Fernando Soares Travassos da Rosa,

We describe clinical and epidemiologic findings during the first epidemic of dengue fever in Belém, Pará State, Brazil, in 1996-97. Of 40,237 serum samples, 17,440 (43%) were positive for dengue by virus isolation or serologic testing. No hemorrhagic cases or deaths were reported. Mycobacterium tuberculosis

Tópico(s): Malaria Research and Control

2000 - Centers for Disease Control and Prevention | Emerging infectious diseases

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, Amélia P. A. Travassos da Rosa, Ivo Castelo Branco Coêlho, Dalgimar B. de Menezes, Elizabeth Salbé Travassos da Rosa, Sueli G. Rodrigues, Jorge Fernando Soares Travassos da Rosa,

Three cases of dengue fever involving the central nervous system (CNS) are reported. All occurred in 1994 during a dengue (DEN) epidemic caused by serotypes DEN-1 and DEN-2. The first case examined was a 17-year-old girl who complained of fever, nuchal rigidity and genital bleeding. Three blood samples were positive by anti-dengue IgM ELISA and showed hemagglutination-inhibition (HI) test titers <FONT FACE="Symbol">³</font> 1,280. The second case concerned a 86-year-old woman with fever, muscle ...

Tópico(s): Vector-borne infectious diseases

1998 - UNIVERSIDADE DE SÃO PAULO | Revista do Instituto de Medicina Tropical de São Paulo

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Pedro Fernando da Costa Vasconcelos, José Wellington Oliveira Lima, Amélia P. A. Travassos da Rosa, Maria J. Timbó, Elizabeth Salbé Travassos da Rosa, Hascalon R. Lima, Sueli Guerreiro Rodrigues, Jorge Fernando Soares Travassos da Rosa,

OBJETIVO: Seguindo-se à epidemia de dengue (DEN), em 1994, em Fortaleza, Ceará, causada pelo sorotipo 2 (DEN-2), realizou-se inquérito soro-epidemiológico aleatório para avaliar e dimensionar o impacto da mesma e a prevalência do dengue por distrito sanitário. MÉTODO: Foi aplicado questionário contendo informações gerais, condições socio-econômicas, informações sobre o quadro clínico e tempo de doença. A amostra foi calculada para estimar uma prevalência de 20%, com erro relativo de 10%, e intervalo ...

Tópico(s): Leptospirosis research and findings

1998 - UNIVERSIDADE DE SÃO PAULO | Revista de Saúde Pública

Artigo Revisado por pares

Jay Prakash Mulki, Jorge Fernando Jaramillo, William B. Locander,

Tópico(s): Management Theory and Practice

2008 - Springer Science+Business Media | Journal of Business Ethics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Jorge Fernando Pereira, Gaofeng Zhou, Emmanuel Delhaize, Terese Richardson, Meixue Zhou, Peter R. Ryan,

Expected increases in world population will continue to make demands on agricultural productivity and food supply. These challenges will only be met by increasing the land under cultivation and by improving the yields obtained on existing farms. Genetic engineering can target key traits to improve crop yields and to increase production on marginal soils. Soil acidity is a major abiotic stress that limits plant production worldwide. The goal of this study was to enhance the acid soil tolerance of ...

Tópico(s): Silicon Effects in Agriculture

2010 - Oxford University Press | Annals of Botany

Artigo Revisado por pares

Víctor Falguera, Jorge Fernando Vélez‐Ruiz, Verónica Alins, Albert Ibarz,

Summary Several rheological properties of concentrated mandarin juice were investigated, quantifying thixotropic behaviour and fitting experimental data to the Hahn, Weltman, and Figoni–Shoemaker equations. The latter one proved best for modelling the time dependency response. Pseudoplastic behaviour fitted well with the Herschel–Bulkley model in the interval between −12 and 6 °C, in which yield stress and the flow behaviour index scarcely changed with temperature. The consistency coefficient and ...

Tópico(s): Rheology and Fluid Dynamics Studies

2010 - Wiley | International Journal of Food Science & Technology

Artigo Revisado por pares

Jay Prakash Mulki, Jorge Fernando Jaramillo, William B. Locander,

Tópico(s): Workplace Spirituality and Leadership

2007 - Springer Science+Business Media | Journal of Business Ethics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Antônia Lucivânia de Sousa Monte, Arturo Bernardo Selaive-Villarroel, Juan Ramón Olalquiaga Pérez, Jorge Fernando Fuentes Zapata, Frederico José Beserra, Antônio Nunes de Oliveira,

A composição relativa dos cortes comerciais da carcaça e a composição tecidual (músculo, osso e gordura) da perna, do lombo e da paleta de cabritos mestiços Boer e Anglo-nubiano foram analisadas em 20 cabritos de dois grupos genéticos diferentes (13 ½ Anglo-nubiano × ½ sem raça definida, SRD e 7 ½ Boer × ½ SRD). Os animais foram abatidos aos 10 meses de idade, com 29 ± 0,08 kg peso corporal. Após resfriamento (2°C) da carcaça por 24 horas, as carcaças foram separadas nos cortes: perna, lombo (anterior e posterior), ...

Tópico(s): Genetic and phenotypic traits in livestock

2007 - Sociedade Brasileira de Zootecnia | Revista Brasileira de Zootecnia

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Antônia Lucivânia de Sousa Monte, Arturo Bernardo Selaive-Villarroel, Déborah dos Santos Garruti, Jorge Fernando Fuentes Zapata, Ângela Silva Borges,

ResumoEste trabalho avaliou a qualidade da carne de cabritos mestiços resultantes do cruzamento de animais Sem Raça Definida (SRD) com dois diferentes grupos genéticos, Anglo Nubiana (A) e Boer (B).Foram utilizados 07 animais SRD (controle), sete 1/2 A x 1/2 SRD, sete 3/4 A x 1/4 SRD, sete 1/2 B x 1/2 SRD e sete 3/4 B x 1/4 SRD.Os parâmetros estudados foram pH (pH 0 -30 minutos e pHf -24 horas), cor (L*, a*, b*), capacidade de retenção de água (CRA), perda de peso na cocção (PPC), força de cisalhamento (FC), ...

Tópico(s): Agriculture Sustainability and Environmental Impact

2007 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Artigo Brasil Produção Nacional Revisado por pares

Hermi F. Brito, Oscar L. Malta, Jorge Fernando Silva de Menezes,

Photoluminescent properties of the tris(thenoyltrifluoroacetonate)europium(III) dihydrate with dimethyl sulfoxide (DMSO), in the solid state, are reported. The compound Eu(TTA)3·2DMSO and the precursor salt were characterized by IR spectroscopy, differential scanning calorimetry and elemental analysis. The emission data indicate that the substitution of the two water molecules by DMSO ligand in the complex causes an intensification of luminescence corresponding to the 5D0→7FJ (J=0–4) transitions associated ...

Tópico(s): Luminescence Properties of Advanced Materials

2000 - Elsevier BV | Journal of Alloys and Compounds

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Jorge Fernando Fuentes Zapata, Larissa Mont’Alverne Jucá Seabra, Cynthia Monteiro Nogueira, Nésio Antônio Moreira Teixeira de Barros,

No presente estudo foram utilizados 21 animais machos, sendo 10 ½ Somalis Brasileira ½ Crioula (SB-C) e 11 ½ Santa Inês ½ Crioula (SI-C), submetidos a duas dietas durante a amamentação: feno de capim-gramão + feno de leucena (D1) e feno de capim-gramão + feno de leucena + concentrado com 20% de proteína bruta (D2). Os resultados de pH da carne crua, assim como os da determinação de cor, perdas na cocção, força de cisalhamento e análise sensorial foram analisados num arranjo fatorial 2 ´ 2 (duas raças ´ 2 sistemas ...

Tópico(s): Animal Nutrition and Physiology

2000 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Artigo Brasil Produção Nacional Revisado por pares

F.R.G. e Silva, Jorge Fernando Silva de Menezes, Gerd B. Rocha, Severino Alves, Hermi F. Brito, Ricardo L. Longo, Oscar L. Malta,

Tópico(s): Photochemistry and Electron Transfer Studies

2000 - Elsevier BV | Journal of Alloys and Compounds

Artigo Revisado por pares

Jorge Fernando Vélez‐Ruiz, Gustavo V. Barbosa‐Cánovas,

ABSTRACT The flow and structural characteristics of concentrated milk were analyzed between concentrations of 12.5 and 46.7% solids content at room temperature. The rheological behavior of milk concentrates was represented by parameters corresponding to Newtonian, Power Law, or Herschel‐Bulkley equations depending on the solids content level. The resulting flow behavior indices and consistency coefficients were correlated to concentration by a single‐term exponential equation, with only milk concentrates ...

Tópico(s): Polysaccharides and Plant Cell Walls

2000 - Wiley | Journal of Texture Studies

Artigo Revisado por pares

Amparo Tárrega, Macarena P. Martínez, Jorge Fernando Vélez‐Ruiz, Susana Fiszman,

The objective of this study was to discover which rheological profiles are related to greater expected satiety in semi-solid milk-based snacks. Chocolate flavoured snacks were prepared with four different hydrocolloids (alginate, carrageenan, hydroxypropyl methylcellulose -HPMC- and xanthan gum) at three different concentrations. Rheological measurements were carried out in a controlled stress rheometer using a parallel-plates sensor system. Flow curves were obtained at increasing shear rates (0–200 ...

Tópico(s): Proteins in Food Systems

2014 - Elsevier BV | Food Hydrocolloids

Artigo Revisado por pares

Manuel Octavio Ramírez‐Sucre, Jorge Fernando Vélez‐Ruiz,

Tópico(s): Microencapsulation and Drying Processes

2014 - Elsevier BV | Journal of Food Engineering

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Gaofeng Zhou, Jorge Fernando Pereira, Emmanuel Delhaize, Meixue Zhou, J. V. de Magalhães, Peter R. Ryan,

Malate and citrate efflux from root apices is a mechanism of Al3+ tolerance in many plant species. Citrate efflux is facilitated by members of the MATE (multidrug and toxic compound exudation) family localized to the plasma membrane of root cells. Barley (Hordeum vulgare) is among the most Al3+-sensitive cereal species but the small genotypic variation in tolerance that is present is correlated with citrate efflux via a MATE transporter named HvAACT1. This study used a biotechnological approach to ...

Tópico(s): Plant Stress Responses and Tolerance

2014 - Oxford University Press | Journal of Experimental Botany

Artigo Acesso aberto Revisado por pares

William Ballesteros Possú, Jorge Fernando Navia, Jesús Solarte,

Cacao farmers face many challenges to increase yield while adjusting their farms to future environmental and socio-economic uncertainties. Improving the management practices of cacao (Theobroma cacao L.) cultivation systems requires knowledge of their baseline and the determining factors affecting them. The main goal of this research was to characterize traditional cacao agroforestry systems of smallholder farmers in the Municipality of Tumaco, Nariño, Colombia. Using a semi-structured survey and ...

Tópico(s): Regional Development and Innovation

2021 - University of Nariño | Revista de Ciencias Agrícolas

Artigo Acesso aberto Revisado por pares

María Del Pilar Beristain-Colorado, Jorge Fernando Ambros-Antemate, Marciano Vargas-Treviño, Jaime Gutiérrez-Gutiérrez, Adriana Moreno-Rodríguez, Pedro Hernández‐Cruz, Itandehui Belem Gallegos-Velasco, Rafael Torres‐Rosas,

Background Serious games have been used as supportive therapy for traditional rehabilitation. However, most are designed without a systematic process to guide their development from the phases of requirement identification, planning, design, construction, and evaluation, which reflect the lack of adaptation of rehabilitation requirements and thus the patient’s needs. Objective The aim of this study was to propose a conceptual framework with standardized elements for the development of information ...

Tópico(s): Virtual Reality Applications and Impacts

2021 - JMIR Publications | JMIR Serious Games