Produção Nacional
Revisado por pares
José da Silva Andrade Neto, Tiago Assunção Santos, Silas de Andrade Pinto, Cléber Marcos Ribeiro Dias, Daniel Véras Ribeiro,
When incorporated into a cementitious matrix and properly dispersed, carbon nanotubes (CNTs) reduce shrinkage and increase the mechanical strength of the matrix; thus, they attract considerable research attention. However, research on the interaction between CNTs and supplementary cementitious materials (SCMs) is scarce, raising doubts regarding the impact of SCMs (such as metakaolin) on the dispersion of CNTs. The objective of the present study was to evaluate the effects of the combined use of CNTs ...
Tópico(s): Concrete Properties and Behavior
2020 - Elsevier BV | Construction and Building Materials
Produção Nacional
Revisado por pares
Daniel Véras Ribeiro, Silas de Andrade Pinto, Nilson S. Amorim Júnior, José da Silva Andrade Neto, Ivan H.L. Santos, Saulo L. Marques, Mavisson Júlio Santos de França,
Rebar corrosion in reinforced concrete is one of the most serious manifestations that affect structures, resulting in considerable technical, financial, and social consequences. The corrosive process can be accelerated by carbonation or the action of chlorides, the latter being the phenomenon of greatest concern, since a large part of the world population lives close to a coast. This study analyzed how the characteristics of the cement and the dosing parameters of the concrete influence the diffusion ...
Tópico(s): Concrete Properties and Behavior
2021 - Elsevier BV | Cement and Concrete Composites
Produção Nacional
Revisado por pares
Silas de Andrade Pinto, Cléber Marcos Ribeiro Dias, Daniel Véras Ribeiro,
Carbon nanotubes (CNT) have gained great prominence due to their exceptional properties, such as high tensile strength and modulus of elasticity. However, one of the biggest difficulties regarding the use of CNT in cementitious matrices is their agglomeration tendency when added to concretes and mortars. An alternative to improve the efficiency of CNT dispersion in the matrix is the use of the dispersants (such as surfactants and additives based on polycarboxylate) with the use of an ultrasonic bath. ...
Tópico(s): Innovative concrete reinforcement materials
2022 - Elsevier BV | Construction and Building Materials
Produção Nacional
Revisado por pares
Fábio Goulart de Andrade, Silas Fernandes Eto, Ana Carolina Navarro dos Santos Ferraro, Denise Turini Gonzales Marioto, Narciso Júnior Vieira, Ana Paula Cheirubim, Solange de Paula Ramos, Emerson José Venâncio,
Ophidian accidents represent a great public health problem in developing countries. Recent studies have shown that antibodies produced in laying hens could be an alternative method for producing antivenin in mammals. In this study we analyzed the production of IgY antibodies in laying hens inoculated with snake venom from the Bothrops and Crotalus genera over a 360-day period. IgY antibodies present in the serum and egg yolks were analyzed according to avidity, antigen recognition pattern and efficiency ...
Tópico(s): Biochemical and Structural Characterization
2013 - Elsevier BV | Toxicon
Silas Fernandes Eto, Fg. Andrade, JW Pinheiro, M. R. S. Balarin, SP Ramos, Emerson José Venâncio,
Recent studies have reported the use of IgY antibody in the prevention or treatment of diseases in animals. IgY can be obtained in large amounts from the yolk of chicken eggs through a low-cost process. This study evaluated the effect of different routes of inoculation on antibody production and spleen morphological characteristics of laying hens (White Leghorn) inoculated with sheep red blood cells. The analysis of the results showed that the intramuscular route is the most efficient for total antibody ...
Tópico(s): Viral gastroenteritis research and epidemiology
2012 - Fundação Apinco de Ciência e Tecnologia Avícolas | Brazilian Journal of Poultry Science
Produção Nacional
Revisado por pares
Miguel Furtado Menezes, Silas Pereira Barbosa, C.A.F. Andrade, José Vanderlei Menani, Patrícia M. De Paula,
Purinergic receptors are present in the lateral parabrachial nucleus (LPBN), a pontine structure involved in the control of sodium intake. In the present study, we investigated the effects of α,β-methyleneadenosine 5'-triphosphate (α,β-methylene ATP, selective P2X purinergic agonist) alone or combined with pyridoxalphosphate-6-azophenyl-2',4'-disulfonic acid (PPADS, P2X purinergic antagonist) or suramin (non-selective P2 purinergic antagonist) injected into the LPBN on sodium depletion-induced 1.8% ...
Tópico(s): Regulation of Appetite and Obesity
2010 - Elsevier BV | Brain Research
Produção Nacional
Revisado por pares
Silas P. Rodrigues, Jerusa Souza Andrade, José Aires Ventura, Patrícia Machado Bueno Fernandes, G.G. Lindsey,
Tópico(s): Plant Virus Research Studies
2009 - Springer Science+Business Media | Journal of Plant Pathology
Produção Nacional
Revisado por pares
Carlos Fabrício Assunção da Silva, Swanni T. Alvarado, Alex Mota dos Santos, Maurício Oliveira de Andrade, Silas Nogueira de Melo,
The construction and expansion of highways aiming to improve the integration of the most isolated regions in Brazil facilitated the access to many inhabited areas in the Amazon biome, but had as a consequence assisted the degradation of many of these regions. Over the last two decades, we have observed in this biome a gradual diversification and intensification of land uses through vegetation loss and an increase in fire associated with deforestation and an increase in grazing areas. We used data ...
Tópico(s): Land Use and Ecosystem Services
2022 - Multidisciplinary Digital Publishing Institute | Sustainability
Produção Nacional
Revisado por pares
Silas C. Principe, André Luís Acosta, João E. Andrade, Tito Monteiro da Cruz Lotufo,
Many species drive the diversity of ecosystems by adding structural complexity to the environment. In coral reefs, stony corals act as habitat-forming species, increasing niche availability for other organisms. Some coral species play key roles as reef builders due to their abundance or morpho-functional characteristics. Thus, changes in the distributions of these species can entail cascading effects in entire ecosystems. With climate change, many coral species are experiencing shifts in their distributions, ...
Tópico(s): Marine and coastal plant biology
2021 - Frontiers Media | Frontiers in Marine Science
Produção Nacional
Revisado por pares
Silas Santos Salgado, César Fonseca Ferreira Filho, Fabrício de Andrade Caxito, Alexandre Uhlein, Elton Luiz Dantas, Ross Stevenson,
The Brejo Seco mafic-ultramafic Complex (BSC) occurs at the extreme northwest of the Riacho do Pontal Orogen Internal Zone, in the northern margin of the São Francisco Craton in Northeast Brazil. The stratigraphy of this medium size (3.5 km wide and 9 km long) layered intrusion consists of four main zones, from bottom to top: Lower Mafic Zone (LMZ; mainly troctolite), Ultramafic Zone (UZ; mainly dunite and minor troctolite); Transitional Mafic Zone (TMZ; mainly troctolite) and an Upper Mafic Zone (UMZ; ...
Tópico(s): earthquake and tectonic studies
2016 - Elsevier BV | Journal of South American Earth Sciences
Produção Nacional
Revisado por pares
Silas Santos Salgado, Fabrício de Andrade Caxito, Rosaline Cristina Figueiredo e Silva, Cristiano Lana,
The Mn-bearing Buritirama Formation along the homonymous ridge consists of a 40 km long by ca. 3 km wide NW-SE trending unit that limits the northern border of the Archean Carajás domain with the Paleoproterozoic Bacajá domain in the southeastern Amazon Craton. The Buritirama Formation type section is arranged in four imbricated thrusts that individualize three main stratigraphic units: Lower Unit, Intermediate Unit and Upper Unit. Detrital U-Pb zircons ages from the Lower Unit and Upper Unit record ...
Tópico(s): Geochemistry and Elemental Analysis
2019 - Elsevier BV | Journal of South American Earth Sciences
Produção Nacional
Revisado por pares
Meriellen Dias, José Thalles Jocelino Gomes de Lacerda, Silas Perdigão Cota de Almeida, Lidiane Maria de Andrade, Cláudio Augusto Oller do Nascimento, Enrique E. Rozas, Maria Anita Mendes,
Abstract Proteomic analysis of the fungus Aspergillus niger showed that its capacity to absorb metals was boosted by physiological modification under metal stress conditions. To investigate the proteome elicited by copper stress, the mine-isolated strain A. niger IOC 4687 was cultured in the absence (control) or presence of copper ions (50 mg L−1) for 72 h. Protein extract from each treatment was analyzed by nano-liquid chromatography-mass spectrometry and proteins were identified using PEAKS Studio ...
Tópico(s): Heavy metals in environment
2019 - Oxford University Press | Metallomics
Produção Nacional
Revisado por pares
Ives Charlie‐Silva, Natália Martins Feitosa, Juliana Moreira Mendonça-Gomes, Daniela Chemim de Melo Hoyos, Cristiano Campos Mattioli, Silas Fernandes Eto, Dayanne Carla Fernandes, Marco Antônio de Andrade Belo, Juliana de Oliveira Silva, André Luís Branco de Barros, José Dias Corrêa, Gustavo Batista Menezes, Hirla Costa Silva Fukushima, Tássia Flávia Dias Castro, Ricardo Carneiro Borra, Felipe Pierezan, Nathalie Ferreira Silva de Melo, Leonardo Fernandes Fraceto,
Mucoadhesive polymeric nanocapsules have attracted interest of researchers from different fields from natural sciences because of their ability to interact with the mucosa and increase drug permeation. Anesthesia by immersion causes absorption through the skin and gills of fish, so it is important to evaluate the exposure of these organs to drug nanosystems. Benzocaine (BENZ) is one of the most popular anesthetic agents used in fish anesthesia, but it has drawbacks because of its low bioavailability, ...
Tópico(s): Advanced Drug Delivery Systems
2020 - Public Library of Science | PLoS ONE
Produção Nacional
Silas Santos Salgado, Fabrício de Andrade Caxito, Gláucia Queiroga, Marco Paulo de Castro,
The Buritirama Formation (BF) occurs at the extreme north of the Carajás Province, close to the contact with the Bacajá domain, in the southeastern portion of the Amazon Craton (Brazil). The BF consists of a 40 km long, ca. 3 km wide NW-SE trending structure arranged in four imbricated thrusts that individualize three main stratigraphic units. The lower unit is composed of orthoquartzite followed by carbonate-silicate rocks. The intermediate unit hosts a supergene manganese ore deposit formed by weathering ...
Tópico(s): Geochemistry and Elemental Analysis
2019 - Sociedade Brasileira de Geologia | Brazilian Journal of Geology
Produção Nacional
Revisado por pares
M. F. ARACATI, Letícia Franchin Rodrigues, Susana Luporini de Oliveira, Romário Alves Rodrigues, Gabriel Conde, Érika Nayara Freire Cavalcanti, Hirasilva Borba, Ives Charlie‐Silva, Dayanne Carla Fernandes, Silas Fernandes Eto, Marco Antônio de Andrade Belo,
Astaxanthin, classified as a xanthophyll, has antioxidant properties about 500 times greater than α-tocopherols and ten times greater than β-carotenes. Based on the antioxidant activity of this carotenoid, this study aimed to evaluate the shelf-life of tilapia fillets (Oreochromis niloticus) fed with astaxanthin, by determining the microbiological quality (colimetry, counts of mesophilic and psychrotrophic microorganisms), physicochemical analyses (colorimetry, pH, thiobarbituric acid reactive substances ( ...
Tópico(s): Meat and Animal Product Quality
2022 - Wiley | Journal of the Science of Food and Agriculture
Produção Nacional
Revisado por pares
Silas de Andrade Pinto, Sandro Lemos Machado, Daniel Véras Ribeiro,
Abstract Corrosion is one of the main phenomena that lead to pathological manifestations in reinforced concrete structures under aggressive environments. with the chloride ion being the most responsible for its occurrence. In this way, understanding the transport mechanisms of this ion through the microstructure of the concrete is of fundamental importance to prevent or delay the penetration of these aggressive agents to guarantee a durable structure. In the literature, there are extensive studies ...
Tópico(s): Smart Materials for Construction
2021 - Instituto Brasileiro do Concreto (IBRACON) | Revista IBRACON de Estruturas e Materiais
Produção Nacional
Revisado por pares
Ives Charlie‐Silva, Gabriel Conde, Juliana Moreira Mendonça-Gomes, Ed Johnny da Rosa Prado, Dayanne Carla Fernandes, Alessandra Cristina de Moraes, Silas Fernandes Eto, Kátia Conceição, Marco Antônio de Andrade Belo,
In order to understand events and mechanisms present in the pathophysiology of tilapia's chronic inflammation and based on the immunomodulatory activity attributed to cyclophosphamide which is widely used to suppress immune responses in human medicine, the present study investigated the effects of cyclophosphamide (CYP) treatment on the modulation of foreign body inflammatory reaction in Nile tilapia (Oreochromis niloticus) with round glass coverslip implanted in the subcutaneous tissue (9 mm of diameter). ...
Tópico(s): Aquaculture Nutrition and Growth
2020 - Elsevier BV | Fish & Shellfish Immunology
E. Karlsson, E. Matthias, Silas E. Gustafsson, K. Johansson, Å.G. Svensson, S. Ogaza, P. da R. Andrade,
The nature of the 32+ state at 279 keV in Tl203 is subject to a discussion based on determination of its magnetic moment. The experimental value, obtained by perturbing the angular correlation of the 401-279 γ-γ cascade, is found to be very close to the Schmidt limit. The result, μ = +0.16±0.05 n.m., from a liquid source determination, is also discussed with regard to possible systematic errors.
Tópico(s): Quantum, superfluid, helium dynamics
1965 - Elsevier BV | Nuclear Physics
Produção Nacional
Revisado por pares
Dayanne Carla Fernandes, Silas Fernandes Eto, Michelli Inácio Gonçalves Funnicelli, Camila C. Fernandes, Ives Charlie‐Silva, Marco Antônio de Andrade Belo, João Martins Pizauro,
Aeromonas hydrophila (Ah) are rod-shaped, Gram-negative, motile aquatic bacteria that can infect fish and mammals, including humans. Due to the importance of this pathogen for fish farming and public health, the present study produced a specific immunoglobulin (Ig) Y by immunizing laying hens with Ah cell proteins. The antibody efficacy in detecting Ah was tested by direct immunofluorescence and indirect immunohistochemistry using tissues from infected Nile tilapia. The produced IgY exhibited specificity ...
Tópico(s): Invertebrate Immune Response Mechanisms
2018 - Elsevier BV | Aquaculture
Produção Nacional
Revisado por pares
Alex Castro, Renata Garbellini Duft, Silas Gabriel de Oliveira-Nunes, André Luís Lugnani de Andrade, Cláudia Regina Cavaglieri, Mara Patrícia Traina Chacon‐Mikahil,
Purpose: High heterogeneity of the response of cardiorespiratory fitness (CRF) to standardized exercise doses has been reported in different training programs, but the associated mechanisms are not widely known. This study investigated whether changes in the metabolic profile and pathways in blood serum and the skeletal muscle are associated with the inter-individual variability of CRF responses to 8-wk of continuous endurance training (ET) or high-intensity interval training (HIIT). Methods: Eighty ...
Tópico(s): Sports Performance and Training
2021 - Frontiers Media | Frontiers in Physiology
Produção Nacional
Revisado por pares
Silas P. Rodrigues, Josemar S. Andrade, José Aires Ventura, Patrícia Machado Bueno Fernandes,
Papaya meleira virus (PMeV) is the causal agent of papaya (Carica papaya L.) sticky disease, which has been detected through analysis of its double-stranded RNA (dsRNA) genome from plant latex. In this work we demonstrate that PMeV dsRNA is protected during 25 days when latex is diluted in citrate buffer pH 5.0 (1:1 v/v) and maintained at -20ºC. At the same temperature, some protection was observed for pure latex or latex diluted in ultra-pure water. Conversely, the dsRNA was almost completely degraded ...
Tópico(s): CRISPR and Genetic Engineering
2009 - Springer Nature | Brazilian Journal of Microbiology
Produção Nacional
Revisado por pares
Daniel Véras Ribeiro, Nilson S. Amorim Júnior, Bruna S. Santos, Henrique A. Santana, Silas de Andrade Pinto,
Reinforcement corrosion is a problem affecting the durability of most concrete structures. When concrete is employed without proper care, it may function inadequately as a barrier, allowing aggressive ions or acidic substances in the atmosphere to attack steel rebars. The principal agents responsible for corrosion are carbon dioxide (CO2) and chlorides (Cl-). Most carbonation research is based on accelerated carbonation tests. Thus, there is an important need to evaluate this process, via comparison ...
Tópico(s): Recycled Aggregate Concrete Performance
2023 - Elsevier BV | Case Studies in Construction Materials
Produção Nacional
M. F. ARACATI, Luiz Fernando Rodrigues, Sirlene Lopes de Oliveira, Alessandra Cristina de Moraes, Ed Johnny da Rosa Prado, Dayanne Carla Fernandes, Silas Fernandes Eto, Ives Charlie‐Silva, Marco Antônio de Andrade Belo,
Little is known about the toxicity of immune modulators in fish. Zafirlukast is an anti-inflammatory that antagonizes cysteine leukotriene receptors (CysLTR1). Aiming to develop strategies for the sanitary management of fish farms, this study evaluated the clinical safety of oral zafirlukast treatment, through biochemical and hematological analyzes during acute inflammatory reaction in Nile tilapia (Oreochromis niloticus), induced by Aeromonas hydrophila bacterins. 72 young tilapias were randomly ...
Tópico(s): Fish Biology and Ecology Studies
2021 - | Ars Veterinaria
Produção Nacional
Revisado por pares
J. M. L. VILASBOAS, Sandro Lemos Machado, Silas de Andrade Pinto,
Abstract This study deals with the application of the filter paper method to determine water retention curves for mortar and concrete samples. A water retention curve exhibits the relationship between water content and energy state in interstitial water, normally expressed as a negative value when compare to normal conditions of temperature and pressure, being referred to as suction. Considering the water retention curve as a basic characterization tool for unsaturated soils, its usage in the engineering ...
Tópico(s): Groundwater flow and contamination studies
2016 - Instituto Brasileiro do Concreto (IBRACON) | Revista IBRACON de Estruturas e Materiais
Produção Nacional
Revisado por pares
Aline Gonçalves Mora, Silas Furquim, Sabrina Payne Tartarotti, de Andrade, Sabrina Janussi, K. S. Krikorian, Thalita Rocha, Carla Fernanda Franco‐Penteado, Denise Gonçalves Priolli, Fernanda Priviero, Mário Angelo Claudino,
Heart failure (HF) has a strong association with the development of lower urinary tract symptoms, especially overactive bladder (OAB); although this condition remains poorly investigated. In this study, we assess the aortocaval fistula (ACF) model as a novel experimental model of micturition dysfunction, associated with HF, focused on the molecular and functional studies to evaluate the autonomic nervous system and urinary bladder remodeling. Male rats were submitted to ACF for HF induction. Echocardiography, ...
Tópico(s): Urological Disorders and Treatments
2019 - Elsevier BV | Life Sciences
Produção Nacional
Daniela Batista da Costa, Patrícia Karla Batista de Andrade, Silas Alves Monteiro da Silva, Djalma Euzébio Simões Neto, Fernando José Freire, Emídio Cantídio Almeida de Oliveira,
Este trabalho estudou a produtividade da cana planta e soca, em solos com diferentes caracteristicas fisicas, quimicas e mineralogicas, submetidos a adubacao fosfatada. Foram instalados experimentos de campo em blocos ao acaso na Destilaria Japungu/PB, Estacao Experimental de Cana-de-Acucar de Carpina/PE e Usina Bom Jesus/PE, selecionando-se Argissolos de textura arenosa, media e argilosa, respectivamente. Foram utilizadas as doses 0; 40; 80; 120; 160 e 200 kg ha-1 de P2O5, aplicadas no fundo do ...
Tópico(s): Sugarcane Cultivation and Processing
2014 - UNIVERSIDADE FEDERAL RURAL DO SEMI-ARIDO | Revista Caatinga
Produção Nacional
Revisado por pares
Alex Castro, Renata Garbellini Duft, Marina Lívia Venturini Ferreira, André Luís Lugnani de Andrade, Arthur Fernandes Gáspari, Lucas de Marchi Silva, Silas Gabriel de Oliveira-Nunes, Cláudia Regina Cavaglieri, Sujoy Ghosh, Claude Bouchard, Mara Patrícia Traina Chacon‐Mikahil,
Background Recent studies have begun to identify the molecular determinants of inter-individual variability of cardiorespiratory fitness (CRF) in response to exercise training programs. However, we still have an incomplete picture of the molecular mechanisms underlying trainability in response to exercise training. Objective We investigated baseline serum and skeletal muscle metabolomics profile and its associations with maximal power output (MPO) gains in response to 8-week of continuous endurance ...
Tópico(s): Sports Performance and Training
2019 - Public Library of Science | PLoS ONE
Pedro Mendes‐Moreira, João Mendes‐Moreira, Antônio Rodrigues Fernandes, E. Andrade, Arnel R. Hallauer, Silas E. Pêgo, María Carlota Vaz Patto,
Abstract Under the scope of a Portuguese regional maize ear competition (the “Sousa Valley Best Ear Competition”), an ear value (EV) formula was developed in 1993 based on published maize trait correlations. This formula had two main purposes, ears evaluation for the ear competition and maize improvement selection. The EV formula included only ear length, kernel weight at 15% moisture, number of rows and number of kernels/ear, with no direct inputs from farmers maize yield. In order to add a more scientific ...
Tópico(s): Banana Cultivation and Research
2014 - Elsevier BV | Field Crops Research
P. M. M. Mendes-Moreira, María Carlota Vaz Patto, Maria Teresa da Silva Mota, João Pedro Carvalho Moreira, João Pedro Santos, Joselito Santos, E. Andrade, Arnel R. Hallauer, Silas E. Pêgo,
Climatic change emphasize the importance of biodiversity maintenance, suggesting that germplasm adapted to organic, low input, or conventional conditions is needed to face future demands. This study presents: I - The two steps genesis of the synthetic maize popula- tion 'Fandango'. A) 'NUTICA' creation: in 1975, Miguel Mota and Silas Pego, initiated a new type of polycross method involving 77 yellow elite inbred lines (dent and flint; 20% Portuguese and 80% North American germplasm) from the NUMI programme ( ...
Tópico(s): Crop Yield and Soil Fertility
2009 - Experimental Institute for Cereal Growing | Maydica
Produção Nacional
Revisado por pares
Thaís Sibioni Berti Bastos, André Guilherme Portela de Paula, Rebeca Bosso dos Santos Luz, Anali M. B. Garnique, Marco Antônio de Andrade Belo, Silas Fernandes Eto, Dayanne Carla Fernandes, F Ferraris, Letícia Gomes de Pontes, Tábata Takahashi França, Leonardo José Gil Barcellos, Flávio P. Veras, Pamela Magalí Bermejo, Giovanna Vieira Guidelli, Carla Maneira, Fellipe da Silveira Bezerra de Mello, Gleidson Silva Teixeira, Gonçalo Amarante Guimarães Pereira, Bianca Helena Ventura Fernandes, Paulo R. S. Sanches, Helyson Lucas Bezerra Braz, Roberta Jeane Bezerra Jorge, Guilherme Malafaia, Eduardo Maffud Cilli, Danilo S. Olivier, Marcos Serrou do Amaral, Renata Jurema Medeiros, Antônio Condino‐Neto, Luciani R. Carvalho, Gláucia Maria Machado‐Santelli, Ives Charlie‐Silva, Jorge Galindo‐Villegas, Tárcio Teodoro Braga,
Despite all efforts to combat the pandemic of COVID-19, we are still living with high numbers of infected persons, an overburdened health care system, and the lack of an effective and definitive treatment. Understanding the pathophysiology of the disease is crucial for the development of new technologies and therapies for the best clinical management of patients. Since the manipulation of the whole virus requires a structure with an adequate level of biosafety, the development of alternative technologies, ...
Tópico(s): COVID-19 Clinical Research Studies
2023 - Nature Portfolio | Scientific Reports