Produção Nacional
Revisado por pares
Jean Carlos Alekcevetch, André Luiz de Lima Passianotto, Everton Geraldo Capote Ferreira, Adriana Brombini dos Santos, Danielle Cristina Gregório da Silva, W. P. Dias, François Belzile, R. V. Abdelnoor, Francismar Corrêa Marcelino‐Guimarães,
Tópico(s): Legume Nitrogen Fixing Symbiosis
2021 - Springer Science+Business Media | Theoretical and Applied Genetics
Produção Nacional
Revisado por pares
Alexandre Guimarães Inácio, Camila Celeste Brandão Ferreira Ítavo, Alexandre Menezes Dias, Gelson dos Santos Difante, Joice Ferreira de Queiroz, Lincoln Carlos Silva de Oliveira, Geraldo Tadeu dos Santos, Luís Carlos Vinhas Ítavo,
Abstract Urea is a compound widely used as a feed additive for ruminants; however, when used profusely, it can lead animals to intoxication. Another factor that affects the effectiveness of urea is the lack of synchronization between the nitrogen and the availability of carbohydrates, necessary for better development of the ruminal microbiota. In order to circumvent these problems and improve the efficiency in urea use, the present study developed two new nutritional additives (F16 and F17) with ...
Tópico(s): Biodiesel Production and Applications
2022 - Nature Portfolio | Scientific Reports
Produção Nacional
Revisado por pares
Sandra Regina Goularte, Luís Carlos Vinhas Ítavo, Geraldo Tadeu dos Santos, Camila Celeste Brandão Ferreira Ítavo, Lincoln Carlos Silva de Oliveira, S. P. Favaro, Alexandre Menezes Dias, R.A. Torres, Carla Maris Machado Bittar,
Avaliou-se o efeito de teores de concentrado na dieta sobre a concentração de ácidos graxos voláteis no líquido ruminal de bovinos. Foram utilizadas quatro vacas mestiças, fistuladas no rúmen, com peso médio de 442,15kg, distribuídas em quadrado latino 4x4, divididos em quatro períodos de 14 dias, sendo 11 de adaptação e três para coleta de dados. Foi utilizada a silagem de milho, como volumoso, e milho, sorgo, farelo de soja, casca de soja, ureia e gordura protegida, como concentrado. As dietas ...
Tópico(s): Fatty Acid Research and Health
2011 - UNIVERSIDADE FEDERAL DE MINAS GERAIS | Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Produção Nacional
Revisado por pares
Leandro Lima da Silva, Amanda Mara Teles, Joana Santos, Marcelo Souza de Andrade, Rui Medeiros, Ana I. Faustino‐Rocha, Paula A. Oliveira, Ana Paula Silva de Azevedo dos Santos, Fernanda Ferreira Lopes, Geraldo Bráz, Haissa Oliveira Brito, Rui M. Gil da Costa,
High-risk human papillomavirus (HPV) is etiologically related to cervical cancer, other anogenital cancers and oropharyngeal carcinomas. Low-risk HPV, especially HPV6 and HPV11, cause genital warts and laryngeal papillomas. However, the accumulating data suggests that HPV6 and HPV11 may cause malignant lesions at non-cervical anatomic sites. This review aims to estimate the proportions of single and dual HPV6/11 infections in multiple cancers reported in the last 10 years in the Cochrane, Embasa ...
Tópico(s): Head and Neck Cancer Studies
2023 - Multidisciplinary Digital Publishing Institute | Cancers
... org/10.1038/s41598-021-02253-8Camila da Silva Zornitta, Luis Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Geraldo Tadeu dos Santos, Alexandre Menezes Dias, Gelson dos Santos Difante, Antonio ...
Tópico(s): Physiological and biochemical adaptations
1957 - University of Chicago Press | The Quarterly Review of Biology
Produção Nacional
Revisado por pares
Dênis Coelho de Oliveira, Rosy Mary dos Santos Isaías, Geraldo Wilson Fernandes, Bruno García Ferreira, Renê Gonçalves da Silva Carneiro, Leandro Fuzaro,
Biologists who study insect-induced plant galls are faced with the overwhelming diversity of plant forms and insect species. A challenge is to find common themes amidst this diversity. We discuss common themes that have emerged from our cytological and histochemical studies of diverse neotropical insect-induced galls. Gall initiation begins with recognition of reactive plant tissues by gall inducers, with subsequent feeding and/or oviposition triggering a cascade of events. Besides, to induce the ...
Tópico(s): Insect-Plant Interactions and Control
2015 - Elsevier BV | Journal of Insect Physiology
Produção Nacional
Rodrigo Fonseca da Silva, Glênio Guimarães Santos, J.C.A. Nóbrega, Daniella Pereira dos Santos, J.P. Silva Júnior, José Ferreira Lustosa Filho, Geraldo César de Oliveira, Bruno Oliveira Dias,
The Cerrado biome is of notable territorial relevance in the state of Piaui, Brazil. This region is an area of reference for food production. The aim of this work was to evaluate the stability of soil aggregates in water, in function of different soil use and management systems, as well as of the time since adopting these systems in Cerrado areas in the southwest region of Piaui. In this study, nine soil use and management systems were evaluated, arranged in the following manner: no-tillage system ...
Tópico(s): Soil and Land Suitability Analysis
2018 - UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO | Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences
Produção Nacional
Revisado por pares
Willison Eduardo Oliveira Campos, Francisco Xavier Nobre, Geraldo Narciso da Rocha Filho, Marcos A. R. da Silva, Carlos Emmerson Ferreira da Costa, Luís Adriano Santos do Nascimento, José Roberto Zamian,
In this work, a new morphology was obtained for bismuth tungstate (Bi2WO6-glyc) using a hydrothermal method with the addition of glycerol as a surfactant. In order to compare, the bismuth tungstate without glycerol as the surfactant, i.e., Bi2WO6, was synthesized. Structural characterization by XRD and Rietveld refinement confirmed the orthorhombic structure as a single phase for all samples with high crystallinity. All active modes in Raman spectroscopy for the orthorhombic phase of bismuth tungstate ...
Tópico(s): Luminescence Properties of Advanced Materials
2019 - Multidisciplinary Digital Publishing Institute | Catalysts
Produção Nacional
Revisado por pares
Thalita Marcolan Valverde, Bruna Nayane Goncalves de Souza Soares, Andréa Mendes do Nascimento, Ângela Leão Andrade, Lucas Resende Dutra Sousa, Paula Melo de Abreu Vieira, Vagner Rodrigues Santos, Janaína Brandão Seibert, Tatiane Cristine Silva de Almeida, Caio Fabrini Rodrigues, Samantha Roberta Machado de Oliveira, Flaviano S. Martins, Jeronimo Geraldo Ferreira Júnior, Viviane Martins Rebello dos Santos,
Many activities have been described for propolis, including, antiviral, antibacterial, antifungal, anti-inflammatory, immunoregulatory, antioxidant and wound healing properties. Recently, propolis has been highlighted due to its potential application in the pharmaceutical and cosmetic industries, motivating a better understanding of its antioxidant and anti-inflammatory activities. Propolis and its main polyphenolic compounds presented high antioxidant activity, and effectiveness as broad spectrum ...
Tópico(s): Essential Oils and Antimicrobial Activity
2023 - Multidisciplinary Digital Publishing Institute | International Journal of Molecular Sciences
Produção Nacional
Revisado por pares
Alexandre Menezes Dias, Luís Carlos Vinhas Ítavo, Júlio César Damasceno, Geraldo Tadeu dos Santos, Camila Celeste Brandão Ferreira Ítavo, Fabiano Ferreira da Silva, Ériklis Nogueira, Cláudia Muniz Soares,
The objective of this work was to evaluate, in bovines, the intake and apparent digestibility of nutrients, ingestive behaviour and content of total digestible nutrients (TDN) of diets based on sugar cane treated with calcium hydroxide.It was used four cows with average body weight of 412.06 kg ± 37.3 kg.The study included inclusion of calcium hydroxide at the doses 0, 8, 16 and 24 g/kg of sugar cane in natural matter basis fed in diets with 65% of roughage and 35% on concentrate, based on dry matter ( ...
Tópico(s): Cassava research and cyanide
2011 - Sociedade Brasileira de Zootecnia | Revista Brasileira de Zootecnia
Produção Nacional
Revisado por pares
Carlos Gustavo Garcia, Suzana Assad Kahn, Luiz Henrique Geraldo, Igor Romano, Ivan Domith, Deborah Christinne Lima e Silva, Fernando dos Santos Assunção, Marcos José Ferreira, Camila C. Portugal, Jorge Marcondes de Souza, Luciana Romão, Annibal Duarte Pereira Netto, Flávia Regina Souza Lima, Marcelo Cossenza,
Tópico(s): Adenosine and Purinergic Signaling
2018 - Springer Science+Business Media | Molecular Neurobiology
Produção Nacional
Revisado por pares
Waleska Dornas, Wanderson Geraldo de Lima, Rinaldo Cardoso dos Santos, Joyce Ferreira da Costa Guerra, Melina Oliveira de Souza, Maísa Silva, Lorena Souza e Silva, Mirla Fiuza Diniz, Marcelo Eustáquio Silva,
In this study we investigated the hypothesis that a high-salt diet to hyperinsulinemic rats might impair antioxidant defense owing to its involvement in the activation of sodium reabsorption to lead to higher oxidative stress. Rats were fed a standard (CON), a high-salt (HS), or a high-fructose (HF) diet for 10 weeks after which, 50% of the animals belonging to the HF group were switched to a regimen of high-fructose and high-salt diet (HFS) for 10 more weeks, while the other groups were fed with their ...
Tópico(s): Biochemical effects in animals
2013 - Elsevier BV | The Journal of Nutritional Biochemistry
Produção Nacional
Revisado por pares
Maria Silvia Monteiro dos Santos, José Antônio da Silva Madalena, Laílton Soares, Paulo Vanderlei Ferreira, Geraldo Veríssimo Souza Barbosa,
Os objetivos deste trabalho foram estabelecer estimativas de repetibilidade de características agroindustriais em 20 genótipos de cana-de-açúcar, determinar a previsibilidade de cada caráter e indicar a predição do valor verdadeiro de cada clone. O delineamento utilizado foi blocos casualizados, com cinco repetições. Utilizaram-se a análise de variância com dois fatores de variação (cortes e genótipos) e a análise dos componentes principais para estimar o coeficiente de repetibilidade <img border= ...
Tópico(s): Natural Products and Biological Research
2004 - Embrapa Informação Tecnológica | Pesquisa Agropecuária Brasileira
Produção Nacional
Revisado por pares
André Gonzaga dos Santos, Paulo Michel Pinheiro Ferreira, Gerardo Magela Vieira Júnior, Carla Cristina Perez, Aristeu Gomes Tininis, Geraldo Humberto Silva, Vanderlan da Silva Bolzani, Letícia V. Costa‐Lotufo, Cláudia do Ó Pessoa, Alberto José Cavalheiro,
Abstract An EtOH extract of the leaves of Casearia sylvestris afforded new clerodane diterpene, casearin X, together with the known compounds casearins B, D, L, and O, and caseargrewiin F. Casearin X degraded to the corresponding dialdehyde when stored in CDCl 3 . The diterpenes isolated were cytotoxic to human cancer cell lines, with caseargrewiin F being the most active and the new clerodane, casearin X, the second active compound with IC 50 values comparable to the positive control doxorubicin. ...
Tópico(s): Plant-Derived Bioactive Compounds
2010 - Wiley | Chemistry & Biodiversity
Produção Nacional
Revisado por pares
Antônio Carlos Santos, Larissa da Silva Ferreira Alves,
O espaço urbano capitalista se constitui como o lócus de sua reprodução, orientada pelos diversos atores sociais, que produzem e consomem o espaço. A produção, podendo ser entendida como a materialização das relações sociais através da aplicação do trabalho, apresenta o processo de organização espacial como sua consequência que, de acordo com o tipo da qualificação do trabalho que se emprega sobre determinada base física, sua valorização tende a aumentar sobremaneira. Desta forma, o presente trabalho ...
Tópico(s): Urban Development and Societal Issues
2015 - UNIVERSIDADE ESTADUAL DE MARINGÁ | Boletim de Geografia
Produção Nacional
Revisado por pares
Emanoel Gomes de Moura, Sheilla Silva e Serpa, José Geraldo Donizetti dos Santos, João Reis Salgado Costa Sobrinho, Alana das Chagas Ferreira Aguiar,
Tópico(s): Agronomic Practices and Intercropping Systems
2010 - Springer Science+Business Media | Plant and Soil
Produção Nacional
Revisado por pares
Deise Inocêncio Pereira, Tatiane Roquete Amparo, Tamires Cunha Almeida, Fernanda Senna Ferreira Costa, Geraldo Célio Brandão, Orlando David Henrique dos Santos, Glenda Nicioli da Silva, Gustavo Henrique Bianco de Souza,
Bladder cancer has a high incidence and recurrence rate among patients worldwide. This study aimed to evaluate the cytotoxic activity of fractions of Sambucus nigra L. flower extracts on bladder carcinoma cells (T24 cells) and human fibroblast cells (MRC-5). The butanolic fraction (F-BuOH) was characterized by UPLC-DAD-MS/MS and nine flavonoids were identified. Rutin was the major compound. The cytotoxic activity of this fraction was observed in the T24 cells but not in MRC-5 cells, indicating selectivity. ...
Tópico(s): Tannin, Tannase and Anticancer Activities
2020 - Taylor & Francis | Natural Product Research
Produção Nacional
Revisado por pares
Ana Cláudia F. Amaral, Aline de Souza Ramos, Márcia Reis Pena, José Luiz P. Ferreira, Jean Michel dos Santos Menezes, Geraldo José Nascimento de Vasconcelos, Néliton Marques da Sílva, Jefferson Rocha de Andrade Silva,
To evaluate the acaricidal activity of the essential oil obtained from roots of Derris floribunda (D. floribunda) (Miq.) Benth, and its main constituent nerolidol against the Mexican mite Tetranychus mexicanus (T. mexicanus) (McGregor). The essential oil from the roots of D. floribunda collected in the Amazon region (Brazil) was obtained by hydrodistillation. Its chemical composition was determined by GC–MS analysis. The acaricidal activities of this essential oil and nerolidol, were evaluated by recording ...
Tópico(s): Insect-Plant Interactions and Control
2017 - Medknow | Asian Pacific Journal of Tropical Biomedicine
Produção Nacional
Revisado por pares
Camila da Silva Zornitta, Luís Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Geraldo Tadeu dos Santos, Alexandre Menezes Dias, Gelson dos Santos Difante, Antônio Leandro Chaves Gurgel,
This study aimed at examining the effects of rumen inoculum of steers receiving different combinations of ionophore and probiotics in their diets on in vitro gas production of corn silage. The fitting of gas production was performed with five mathematical models and its kinetics was evaluated. Four crossbred steers (403.0 ± 75.5 kg body weight) with ruminal cannula were assigned to a 4 × 4 Latin square design. The additives used were Monensin sodium (Rumensin® 100, 3 g/day), Bacillus toyonensis (Micro- ...
Tópico(s): Rabbits: Nutrition, Reproduction, Health
2021 - Multidisciplinary Digital Publishing Institute | Fermentation
Produção Nacional
Revisado por pares
César Ricardo Teixeira Tarley, Gustavo Silveira, Walter Nei Lopes dos Santos, Geraldo D. Matos, Erik Galvão Paranhos da Silva, Marcos Almeida Bezerra, Manuel Miró, Sérgio L.C. Ferreira,
The aim of this paper is to give a brief overview of chemometric techniques based on factorial designs and response surface methodologies used in the optimization of electroanalytical methods. Chemometric techniques have several important advantages over one-way optimization for analytical applications, including a relatively low cost, a reduced number of experiments, and possibilities to evaluate interactions among variables. These techniques also enable the selection of optimal experimental conditions, ...
Tópico(s): Spectroscopy and Chemometric Analyses
2009 - Elsevier BV | Microchemical Journal
Produção Nacional
Revisado por pares
Manuela da Silva Solcà, Leila Andrade Bastos, Carlos Eduardo Sampaio Guedes, Marcelo Bordoni, Lairton Souza Borja, Daniela Farias Larangeira, Pétala Gardênia da Silva Estrela Tuy, Leila Denise Alves Ferreira Amorim, Eliane Gomes Nascimento, Geraldo Gileno de Sá Oliveira, Washington L. C. dos‐Santos, Deborah Bittencourt Mothé Fraga, Patrícia Sampaio Tavares Veras,
Host tissues affected by Leishmania infantum have differing degrees of parasitism. Previously, the use of different biological tissues to detect L. infantum DNA in dogs has provided variable results. The present study was conducted to evaluate the accuracy of molecular diagnostic testing (qPCR) in dogs from an endemic area for canine visceral leishmaniasis (CVL) by determining which tissue type provided the highest rate of parasite DNA detection. Fifty-one symptomatic dogs were tested for CVL using ...
Tópico(s): Leptospirosis research and findings
2014 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Sérgio L.C. Ferreira, Laiana O.B. Silva, Fernanda A. de Santana, Mario Moscosa-Santillán, Geraldo D. Matos, Walter Nei Lopes dos Santos,
The present paper presents advantages, limitations and applications of a reflux system (cold finger) employed for sample preparation during determination of volatile elements. Also other techniques employed for sample preparation in the determination of volatile elements are discussed and compared. A list of ten papers published reporting use of cold finger as reflux system are being cited and discussed.
Tópico(s): Extraction and Separation Processes
2012 - Elsevier BV | Microchemical Journal
Produção Nacional
Revisado por pares
Robson M. de Jesus, M Silva Junior Mario, Geraldo D. Matos, Ana dos Santos, Sérgio L.C. Ferreira,
This paper presents the validation of a system for sample digestion using a digester block/cold finger to determine the lead content in vegetables by electrothermal atomic absorption spectrometry (ETAAS). After mineralization, lead contents were determined by ETAAS using a calibration curve based on aqueous standards prepared in 2.60 M nitric acid solutions containing 5 microg ammonium phosphate as chemical modifier. A pyrolysis temperature of 900 degrees C and atomization temperature of 2000 degrees ...
Tópico(s): Heavy metals in environment
2011 - Oxford University Press | Journal of AOAC International
Produção Nacional
Revisado por pares
Alex de Oliveira, Marco Aurélio Barbosa de Lima, Luíza Helena de Oliveira Pires, Moisés Rosas da Silva, Patrícia Teresa Souza da Luz, Rômulo Simões Angélica, Geraldo Narciso da Rocha Filho, Carlos Emmerson Ferreira da Costa, Rafael Luque, Luís Adriano Santos do Nascimento,
Two bentonites from Paraíba (Northeastern Brazil) were impregnated with heteropoly phosphomolybdic H3PMo12O40 (HPMo). The materials produced were characterized by various techniques such as N2 adsorption-desorption (specific surface area, SSA), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA/DTG), Scanning Electron Microscopy (SEM) equipped with Dispersive Energy X-ray spectroscopy (EDS), ultraviolet-visible spectroscopy (UV-vis), acid-base titration ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2019 - Multidisciplinary Digital Publishing Institute | Materials
Produção Nacional
Revisado por pares
Arthur Abinader Vasconcelos, Thomas Len, Alex de Oliveira, Ana Alice Farias da Costa, Allan Rodrigo da Silva Souza, Carlos Emmerson Ferreira da Costa, Rafael Luque, Geraldo Narciso da Rocha Filho, Renata Coelho Rodrigues Noronha, Luís Adriano Santos do Nascimento,
This review provides a state-of-the-art summary of distributed zeolite technology, as well as identifying strategies to further promote the absorption of these materials in various areas of study. Zeolites are materials that can be synthesized or found in natural rock deposits a with a basic composition consisting in Al, Si, and O. Zeolite’s consideration as a future material is due to many facile synthesis methods to obtain different structures with variations in pore size, surface area, pore volume ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2023 - Multidisciplinary Digital Publishing Institute | Applied Sciences
Produção Nacional
Eduardo Morgan Uliana, Edvaldo Fialho dos Reis, José Geraldo Ferreira da Silva, Alexandre Cândido Xavier,
1 RESUMO O conhecimento da precipitação mensal e anual provável é importante para o planejamento das atividades agrícolas, na construção civil, turismo, transporte e de outras atividades afins. O objetivo foi obter a precipitação mensal e anual provável para o estado do Espírito Santo, considerando o nível de 75% probabilidade, e estudar sua distribuição espacial. Para estimar a precipitação para este nível de probabilidade utilizou-se a distribuição gama incompleta e para verificar a aderência ...
Tópico(s): Agricultural and Food Sciences
2012 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Irriga
Produção Nacional
Revisado por pares
Regina Mambeli Barros, Geraldo Lúcio Tiago Filho, Afonso Henriques Moreira Santos, Cláudio Homero Ferreira, Marcela Fernandes Pieroni, Juliana Sales Moura, Helena Sayuri de Souza Abe, Lucas Martins Brito, Ivan Felipe Silva dos Santos, Eruin Martuscelli Ribeiro, João Victor Rocha de Freitas,
This project aimed to simulate a sanitary landfill cell at the pilot scale and used a lysimeter to assess and quantify the volume of biogas produced by municipal solid waste (MSW), with a composition similar to that disposed in municipal sanitary landfill, in Itajubá, Brazil. The methodology of this study included: the preparation and filling of an experimental cell landfill; the measurement of the biogas pressure, temperature and volume; the determination of the potential for methane generation ( ...
Tópico(s): Municipal Solid Waste Management
2018 - Elsevier BV | Renewable energy focus
Produção Nacional
Revisado por pares
Sérgio L.C. Ferreira, Manuel Miró, Erik Galvão Paranhos da Silva, Geraldo D. Matos, Pedro Sanches dos Reis, Geovani C. Brandão, Walter Nei Lopes dos Santos, Álvaro T. Duarte, Maria Goreti Rodrigues Vale, Rennan G.O. Araújo,
Abstract This article critically overviews the state-of-the-art of slurry sampling as an approach for the minimization of sample preparation prior to the determination of metals and metalloids in complex matrices by spectroanalytical techniques. Relevant factors involved in the optimization of slurry-based analytical procedures and the dependence of the quality of the results on the calibration method selected are discussed in detail. The advantages and limitations compared to solid sampling for ...
Tópico(s): Mercury impact and mitigation studies
2010 - Taylor & Francis | Applied Spectroscopy Reviews
Produção Nacional
Revisado por pares
Laiana O.B. Silva, Danilo Junqueira Leão, Debora Correia dos Santos, Geraldo D. Matos, Jaílson B. de Andrade, Sérgio L.C. Ferreira,
The present paper describes the development of a method for the determination of copper in airborne particulate matter using slurry sampling and chemical vapor generation atomic absorption spectrometry (CVG AAS). Chemometric tools were employed to characterize the influence of several factors on the generation of volatile copper species. First, a two-level full factorial design was performed that included the following chemical variables: hydrochloric acid concentration, tetrahydroborate concentration, ...
Tópico(s): Electrochemical Analysis and Applications
2014 - Elsevier BV | Talanta
Produção Nacional
Revisado por pares
Sandra Regina Goularte, Luís Carlos Vinhas Ítavo, Camila Celeste Brandão Ferreira Ítavo, Alexandre Menezes Dias, M.G. Morais, Geraldo Tadeu dos Santos, Lincoln Carlos Silva de Oliveira,
Avaliou-se a influência do teor de concentrado na dieta sobre o comportamento ingestivo, o consumo e a digestibilidade aparente de nutrientes em bovinos. Foram utilizadas quatro vacas mestiças, com média de peso de 442,15kg, distribuídas em quadrado latino 4x4, durante quatro períodos de 14 dias, sendo 11 de adaptação e três para coleta de amostras, elaboradas por animal e por período. O comportamento foi avaliado pela observação dos animais a cada 15 minutos por 24 horas, determinando-se tempo ...
Tópico(s): Effects of Environmental Stressors on Livestock
2011 - UNIVERSIDADE FEDERAL DE MINAS GERAIS | Arquivo Brasileiro de Medicina Veterinária e Zootecnia