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Book.

1959 - Gale Group | World Scholar Latin America

Artigo Acesso aberto Revisado por pares

Dionissi Aliprantis, Daniel R. Carroll,

... Kyle Fee, Pedro Silos, Eric Young, Bob Becker, Roberto Pinheiro, Mahmoud Elamin, Stephen Ross, Víctor Ríos-Rull, Randy ... Kyle Fee, Pedro Silos, Eric Young, Bob Becker, Roberto Pinheiro, Mahmoud Elamin, Stephen Ross, Víctor Ríos-Rull, Randy ...

Tópico(s): Gender, Labor, and Family Dynamics

2018 - Wiley | Quantitative Economics

Artigo Brasil Produção Nacional Revisado por pares

Roberto Pinheiro Domingos, Roberto Schirru, Cláudio M.N.A. Pereira,

This work presents particle swarm optimization (PSO) as an alternative method for solving an optimization problem that arises during nuclear reactor core design. The method is introduced and applied to a simplified core optimization problem found in literature. When compared with other evolutionary computation–based methods, PSO performs better. Moreover, PSO presents easier modeling and demands less computational effort in the optimization process. The obtained results are shown and discussed.

Tópico(s): Nuclear reactor physics and engineering

2006 - Taylor & Francis | Nuclear Science and Engineering

Artigo Brasil Produção Nacional Revisado por pares

Esther Regina de Souza Pinheiro, Roberto Iannuzzi, Graciela Pereira Tybusch,

The main goal of this contribution was to analyze the distribution of types of foliar damage in the different genera of leaves forming the "Glossopteris Flora". We studied material collected in five localities in the southern Paraná Basin, dated as Early Permian (Sakmarian–Artinskian), was studied. Fourteen types of damage caused by insects were identified in leaves of Glossopteris sp., Gangamopteris sp., and Cordaites sp. A MANOVA with permutation tests was used to evaluate the effects of the factors " ...

Tópico(s): Plant and animal studies

2012 - Elsevier BV | Review of Palaeobotany and Palynology

Revisão Revisado por pares

Reyna Berenice González-González, Pooja Sharma, Surendra Pratap Singh, Juliana Heloisa Pinê Américo‐Pinheiro, Roberto Parra‐Saldívar, Muhammad Bilal, Hafiz M.N. Iqbal,

Pharmaceutical compounds are designed to elicit a biological reaction in specific organisms. However, they may also elicit a biological response in non-specific organisms when exposed to ambient quantities. Therefore, the potential human health hazards and environmental effects associated with pharmaceutically active compounds presented in aquatic environments are being studied by researchers all over the world. Owing to their broad-spectrum occurrence in various environmental matrices, direct or ...

Tópico(s): Nanoparticles: synthesis and applications

2022 - Elsevier BV | The Science of The Total Environment

Artigo Revisado por pares

Darllan do Rosário Pinheiro, Roberto de Freitas Neves, Simone Patrícia Aranha da Paz,

Kaolin waste from an industry in the Amazon region was selected as an economic source of Si and Al to optimize the synthesis of SAPO-34 molecular sieve. A sequential BBD, RSM and global desirability function (D) was used. The factors studied for optimization were the SiO2/Al2O3 molar ratio, the concentration of the structure-directing agent (SDA; morpholine) and the crystallization time. The responses evaluated in the synthesized SAPO-34 were the relative crystallinity (%), the enthalpy of formation of ...

Tópico(s): Clay minerals and soil interactions

2021 - Elsevier BV | Microporous and Mesoporous Materials

Artigo Acesso aberto Brasil Produção Nacional

Leandro Fernandes Malloy‐Diniz, Danielle de Souza Costa, Fabiano Franca Loureiro, Lafaiete Moreira, Brenda Kelly Souza Silveira, Herika de Mesquita Sadi, Tércio Apolinário‐Souza, António Alvim-Soares, Rodrigo Nicolato, Jonas Jardim de Paula, Débora Marques de Miranda, Mayra Isabel Correia Pinheiro, Roberto Moraes Cruz, Antônio Geraldo da Silva,

O cenário da pandemia de COVID-19 representa um desafio sem precedentes para a sociedade. Em que pese a importância das medidas imediatas visando à prevenção da propagação da doença, cuidados com os indivíduos acometidos e medidas para minimizar os impactos econômicos e sociais, a abordagem de temas relacionados à saúde mental da população em geral é também crucial. As contribuições interdisciplinares relacionadas à saúde mental envolvem a compreensão dos mecanismos cognitivos e comportamentais ...

Tópico(s): Occupational Health and Burnout

2020 - Associação Brasileira de Psiquiatria | Debates em Psiquiatria

Artigo Brasil Produção Nacional Revisado por pares

Thamiris Barbosa dos Santos, Esther Regina de Souza Pinheiro, Roberto Iannuzzi,

ABSTRACT Seeds are plant organs commonly found worldwide in late Paleozoic deposits. In Gondwana, the seeds are found in deposits from Southern Africa, Antarctica, Oceania, and South America, and are widely reported in the well-known “Glossopteris Flora”. Even with a significant record of these plant organs, little is known about plant-insect interactions with seeds during the Pennsylvanian and Permian periods. In the present paper, we recorded the first formal record of seed consumption by arthropods ...

Tópico(s): Plant Parasitism and Resistance

2020 - Society for Sedimentary Geology | Palaios

Artigo Brasil Produção Nacional Revisado por pares

Victor Henrique Cabral Pinheiro, Roberto Schirru,

The nuclear accident identification problem has been developed quite extensively in the literature, with numerous statistical methods and artificial intelligence techniques having been employed over the years to deal with this important safety matter. This article presents, for the first time, the application of genetic programming to this problem. The methodology consisted in evaluating the efficiency of the algorithm as a technique for the optimization and feature generation in a pattern recognition ...

Tópico(s): Nuclear Engineering Thermal-Hydraulics

2018 - Elsevier BV | Annals of Nuclear Energy

Artigo Brasil Produção Nacional Revisado por pares

Esther R. S. Pinheiro, Roberto Iannuzzi, Leandro Duarte,

Arthropods and land plants are the major macroscopic sources of biodiversity on the planet. Knowledge of the organization and specialization of plant-herbivore interactions, such as their roles in food webs is important for understanding the processes for maintaining biodiversity. A limited number of studies have examined herbivory through geological time. The most have analyzed localities from one restricted interval within a geological period, or a time transition such as the Paleocene-Eocene ...

Tópico(s): Plant and animal studies

2016 - Wiley | Ecology

Artigo Brasil Produção Nacional Revisado por pares

Aline Bartelochi Pinto, Fernando C. Pagnocca, Marcelo Antônio Amaro Pinheiro, Roberto Fioravanti Carelli Fontes, Ana Júlia Fernandes Cardoso de Oliveira,

Coastal areas may be impacted by human and industrial activities, including contamination by wastewater, heavy metals and hydrocarbons. This study aimed to evaluate the impact of hydrocarbons (TPH) and metals on the microbiota composition and abundance in two estuarine systems in the coast of São Paulo: the Santos (SE) and Itanhaém (IE) estuaries. The SE was found to be chronically contaminated by heavy metals and highly contaminated by hydrocarbons. This finding was correlated with the increased density ...

Tópico(s): Microplastics and Plastic Pollution

2015 - Elsevier BV | Marine Pollution Bulletin

Artigo Brasil Produção Nacional Revisado por pares

Lorena N. Dias, M. V. B. Pinheiro, Roberto L. Moreira, Klaus Krambrock, K.J. Guedes, Luiz Alberto Dias Menezes Filho, Joachim Karfunkel, Jürgen Schnellrath, Ricardo Scholz,

Natural single-crystal specimens of the montebrasite/amblygonite series from Brazil, with general formula LiAlPO4(F,OH), were investigated by electron microprobe, Raman spectroscopy, X-ray diffraction, and infrared absorption. Since little is known about impurities and their local symmetries, electron paramagnetic resonance (EPR) was applied. Six different paramagnetic impurities and radiation defects were detected by EPR. Three of them, all substituting for Al3+ ions, namely, iron (Fe3+), vanadium ( ...

Tópico(s): Clay minerals and soil interactions

2010 - Mineralogical Society of America | American Mineralogist

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Luciana R. Martins, Elizabeth Teixeira de Souza, Tatiana López Fernández, Bernardo de Souza, Sílvio Rachinski, Carlos B. Pinheiro, Roberto B. Faria, Annelise Casellato, Sérgio de Paula Machado, A.S. Mangrich, Marciela Scarpellini,

The tridentate ligands HL1, [(2-hydroxybenzyl)(2-(imidazol-2-yl)ethyl)]amine, and HL2, [(2-hydroxybenzyl)(2-(pyridil-2-yl)ethyl]amine, were used to synthesize binuclear CuII complexes, [Cu2(L1)2]Cl2•2H2O, complex 1, and [Cu2(L2)2](ClO4)2•1.5H2O, complex 2, in order to obtain catalysts for oxidative processes. Both complexes were characterized by elemental analysis, IR, UV-Vis and EPR spectroscopies. In addition, they were studied by cyclic voltammetry and potentiometric titration in order to investigate ...

Tópico(s): Porphyrin and Phthalocyanine Chemistry

2010 - Brazilian Chemical Society | Journal of the Brazilian Chemical Society

Artigo Brasil Produção Nacional Revisado por pares

Jaine Honorata Hortolan Luiz, Andréa Mendes do Nascimento, M. H. Kossuga, Bruno C. Cavalcanti, Cláudia Pessoa, Manoel Odorico de Moraes, Mario L. Macedo, Antônio G. Ferreira, Eduardo Hajdu, Ulisses Pinheiro, Roberto G. S. Berlinck,

Four bis-piperidine alkaloids, madangamine F (1), haliclonacyclamine F (2). and arenosclerins D (3) and E (4), have been isolated from the marine sponge Pachychalina alcaloidifera and have been identified by analysis of spectroscopic data. The alkaloids displayed cytotoxic activity against different cancer cell lines. These results support the hypothesis of a common biogenetic origin for the Haplosclerida bis-piperidine and bis-pyridine alkaloids.

Tópico(s): Chemical synthesis and alkaloids

2007 - American Chemical Society | Journal of Natural Products

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Thereza Christinna Cellos Gonçalves Pinheiro Ladalardo, Antônio L. B. Pinheiro, Roberto Augusto de Carvalho Campos, Aldo Brugnera, Fátima A. A. Zanin, Pedro Luiz Mangabeira Albernaz, Luc Louis Maurice Weckx,

Cervical dentine hypersensitivity is the most frequent complaint among reported odontalgias. Thus, this study evaluated the effectiveness of two types of lasers (660 nm wavelength red, and 830 nm wavelength infrared) as dentine desensitizers, as well as both the immediate and late therapeutic effects in individuals 25 to 45 years of age. A total of 40 teeth with cervical exposure were treated in 4 sessions. They were divided into 2 groups according to treatment. A 660 nm wavelength red diode laser ...

Tópico(s): Dental Anxiety and Anesthesia Techniques

2004 - Fundação Odontológica de Ribeirão Preto | Brazilian Dental Journal

Artigo Brasil Produção Nacional Revisado por pares

Dayse C. de Azevedo, Alexei Lorenzetti Novaes Pinheiro, Roberto M. Torresi, Ernesto Rafael González,

The electro-oxidation of CO on platinum is a reaction of fundamental interest in electrocatalysis and also in technological electrochemistry, because of its relation with fuel cells and gas sensors. In this work, electrochemical impedance spectroscopy was used to study the electro-oxidation of CO on a polycrystalline platinum rotating-disk electrode in perchloric acid solution. The results were interpreted in terms of a mechanism where the formation of oxygenated species on platinum is the limiting ...

Tópico(s): Fuel Cells and Related Materials

2002 - Elsevier BV | Journal of Electroanalytical Chemistry

Artigo Brasil Produção Nacional Revisado por pares

Igor Reszka Pinheiro, Roberto Moraes Cruz,

This article borrowed network analysis tools to discover how the construct formed by the set of all measures of creativity configures itself. To this end, using a variant of the meta-analytical method, a database was compiled simulating 42,381 responses to 974 variables centered on 64 creativity measures. Results, although preliminary, indicate the existence of a core dimension filled with variables that indicate novelty, which is surrounded by the paired dimensions of negative affect and social ...

Tópico(s): Cognitive Science and Mapping

2014 - Taylor & Francis | Creativity Research Journal

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Lidimara Souza da Silveira, Renato Tavares Martins, Guilherme Augusto da Silveira, Richard Michael Grazul, Danielle L. J. Pinheiro, Roberto da Gama Alves,

The objective of this study was to analyze the colonization of Chironomidae (Diptera) larvae during the decomposition of Eichhornia azurea (Swartz) Kunth (Commelinales: Pontederiaceae) leaves in a lake in southeastern Brazil in two seasons of the year. The experiment was conducted from September to November 2007 and February to April 2008. In each period, 21 litter bags were used, each containing 10 g of dried leaves. Three bags were removed after 2, 5, 8, 12, 25, 45, and 65 days of colonization. The ...

Tópico(s): Fish Ecology and Management Studies

2013 - Oxford University Press | Journal of Insect Science

Artigo Brasil Produção Nacional Revisado por pares

M. B. A. Vasconcellos, M. Saiki, G. Paletti, Rose Mary Marques Pinheiro, Roberto G. Baruzzi, Renato Spindel,

Tópico(s): Advanced Chemical Sensor Technologies

1994 - Springer Science+Business Media | Journal of Radioanalytical and Nuclear Chemistry

Artigo Brasil Produção Nacional Revisado por pares

Ana Teresa Pugas Carvalho, Celeste C. Elia, Heitor Siffert Pereira de Souza, Paulo Roberto Pinheiro Elias, Eduardo Lopes Pontes, Hannah Pitanga‐Lukashok, Fernanda Cristina Dias de Freitas, José Roberto Lapa e Silva,

Eosinophil accumulation and activation are characteristic features of inflammation in allergic diseases and in host defense against parasites.To investigate the involvement of eosinophils in inflamed and noninflamed mucosa of patients with inflammatory bowel disease (IBD).Specimens of inflamed colonic mucosa from 15 patients with ulcerative colitis (UC) and inflamed and noninflamed colonic mucosa from 15 patients with Crohn's disease (CD) were submitted to histologic and immunohistochemical studies. ...

Tópico(s): Eosinophilic Disorders and Syndromes

2003 - Lippincott Williams & Wilkins | Journal of Clinical Gastroenterology

Artigo Acesso aberto Brasil Produção Nacional

Mayara Setúbal Oliveira, Priscila Silva de Almeida‐Monteiro, Larissa Teixeira Nunes, Francisco Renan Aragão Linhares, João Paulo Silva Pinheiro, Rômulo Roberto Ribeiro Pinheiro, Filipe Oliveira Ferreira, C.C. Campello, Carminda Sandra Brito Salmito‐Vanderley,

Tambaqui (Colossoma macropomum) is a native freshwater fish that is of great importance for Brazilian aquaculture. Because of this importance, several techniques have been developed to improve the reproduction of this species in captivity. One of these techniques is the cryopreservation of sperm. In an effort to increase the efficiency of cryopreservation protocols, researchers have tried to determine suitable diluting solutions and freezing methods, which will provide a better post-thaw sperm quality. ...

Tópico(s): Fish biology, ecology, and behavior

2016 - UNIVERSIDADE ESTADUAL DE LONDRINA | Semina Ciências Agrárias

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

José Roosevelt Cavalcante, Luiz Gonzaga Porto Pinheiro, Paulo Roberto Carvalho Almeida, Márcia Valéria Pitombeira Ferreira, Gizele Almada Cruz, Thales Alves Campelo, Caroliny Soares Silva, Luana Nepomuceno Gondim Costa Lima, Bruno Masato Kitagawa de Oliveira, Lara Mulato Lima, Laura Magda Costa Feitosa, Agostinho C. Pinheiro, Cristiane Cunha Frota,

The aim of this study is to investigate the presence of human papillomavirus DNA and genotypes in breast cancer and normal breast tissue samples obtained from women from the northeast region of Brazil.One hundred three breast cancer samples and 95 normal breast samples, as the non-malignant controls, were studied. DNA extraction was verified by human beta-globin gene amplification, and polymerase chain reaction was conducted based on HPV L1-specific consensus primers MY09/MY11 and GP5+/GP6+, followed ...

Tópico(s): Cancer Diagnosis and Treatment

2018 - Elsevier BV | Clinics

Artigo Brasil Produção Nacional

Thereza C. Ladalardo, Aldo Brugnera, Márcia Takamoto, Antônio L. B. Pinheiro, Roberto Augusto de Carvalho Campos, Ana E. Castanho Garrini, Elisângela Donnamaria Bologna, F.A.P. Settanni,

This clinical case report relates to a total of 4 patients, carriers of idiopathic facial paralysis, treated with Low Level Laser Therapy using a Gallium-Aluminum-Arsenide diode laser of 780 nm, 50 mW, continuous wave emission, spot size 3 mm 2 and total dosage of 20 joules per session distributed to the peripheral trajectory of the injured nerve in a point by point contact mode. Altogether 24 treatment sessions were performed in a period of 12 consecutive weeks twice a week All treated patients ...

Tópico(s): Ear Surgery and Otitis Media

2001 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Artigo Brasil Produção Nacional Revisado por pares

Ricardo Bento Nogueira Pinheiro, Antônio Roberto Balbo, Edméa Cássia Baptista, Leonardo Nepomuceno,

Abstract This paper proposes a predictor–corrector primal–dual modified log-barrier interior–exterior point method with global convergence and cubic fitting strategies for solving the Reactive Optimal Power Flow (ROPF) problem. The interior–exterior approach is a variant of the primal–dual nonlinear rescaling method, recently proposed. The application of the global convergence strategy produces only descent directions, even if the optimization problem is non-linear and non-convex. The application ...

Tópico(s): Advanced Numerical Methods in Computational Mathematics

2014 - Elsevier BV | International Journal of Electrical Power & Energy Systems

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Monique Renon Eller, Pedro Marcus Pereira Vidigal, Rafael Locatelli Salgado, Maura Pinheiro Alves, Roberto Sousa Dias, Cynthia Canêdo da Silva, Antônio Fernandes de Carvalho, Andrew M. Kropinski, Sérgio Oliveira de Paula,

Abstract Background Phages infecting spoilage microorganisms have been considered as alternative biocontrol agents, and the study of their genomes is essential to their safe use in foods. UFV-P2 is a new Pseudomonas fluorescens -specific phage that has been tested for its ability to inhibit milk proteolysis. Results The genome of the phage UFV-P2 is composed of bidirectional modules and presented 75 functionally predict ORFs, forming clusters of early and late transcription. Further genomic comparisons ...

Tópico(s): Genomics and Phylogenetic Studies

2014 - BioMed Central | BMC Genomics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

M.A.R. Silva, Breno Moacir Farias de Albuquerque, N.E. Pontes, L.C.A. Coutinho, M.C.G. Leitão, Marcella Carolina Pinheiro Reis, Roberto Soares de Castro, Antônio Carlos de Freitas,

Papillomaviruses (PV) are double-stranded DNA viruses that can cause benignant and malignant tumors in amniotes.There are 13 types of bovine papillomavirus (BPV-1 to -13); they have been found in reproductive tissues and body fluids.Normally these viruses are detected in epithelial tissue.We looked for BPV in the blood of healthy cattle and cattle with papillomatosis, using PCR and RT-PCR.BPV types 1 and 2 were detected in 8/12 blood samples of asymptomatic bovines and in 8/9 samples from cattle with ...

Tópico(s): Animal Disease Management and Epidemiology

2013 - Research Foundation of Ribeirão Preto | Genetics and Molecular Research

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Deysi Viviana Tenazoa Wong, Renata Brito Falcão Holanda, Aurilene Gomes Cajado, Alessandro Maia Bandeira, Jorge Fernando Bessa Pereira, Joice Oliveira Amorim, Clarice Sampaio Torres, Luana Maria Moura Ferreira, Marina Helena Silva Lopes, Roberta Taiane Germano de Oliveira, Anamaria Falcão Pereira, Rosane Oliveira Sant'Ana, Larissa Mont’Alverne de Arruda, Howard Lopes Ribeiro, Ronald Feitosa Pinheiro, Paulo Roberto Carvalho Almeida, Robson Francisco Carvalho, Fábio Figueiredo Chaves, Duílio R Rocha-Filho, Fernando Q. Cunha, Roberto César Pereira Lima‐Júnior,

Severe diarrhoea, a common gastrointestinal manifestation of anticancer treatment with irinotecan, might involve single nucleotide polymorphisms (SNPs) of toll-like receptors (TLRs), described as critical bacterial sensors in the gut. Here, colorectal cancer patients carrying missense TLR4 A896G (rs4986790) or C1,196T (rs4986791) SNPs and Tlr4 knockout (Tlr4-/-) mice were given irinotecan to investigate the severity of the induced diarrhoea.Forty-six patients treated with irinotecan-based regimens had ...

Tópico(s): Neutropenia and Cancer Infections

2021 - Wiley | British Journal of Pharmacology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Renata G. Almeida, Wagner O. Valença, Luísa G. Rosa, Carlos A. de Simone, Solange L. de Castro, Juliana M. C. Barbosa, Daniel Pascoalino Pinheiro, Carlos Roberto Koscky Paier, Guilherme G. C. de Carvalho, Cláudia Pessoa, Marília Oliveira Fonseca Goulart, Ammar Kharma, Eufrânio N. da Silva Júnior,

New quinoidal compounds were prepared and evaluated against T. cruzi and cancer cell lines for the identification of new bioactive agents.

Tópico(s): Synthesis and Biological Evaluation

2020 - Royal Society of Chemistry | RSC Medicinal Chemistry

Artigo Brasil Produção Nacional Revisado por pares

Anderson Edson da Silva, Ismael Nogueira Rabelo de Melo, Ivete Peixoto Pinheiro, Leonardo Roberto da Silva,

High chromium white cast iron (HCWCI) is considered a hard machinable material because of its high carbide content, which when associated with a matrix, forms a rigid and very hard microstructure. This work evaluates the effect of the addition of 0.5% niobium (Nb) on the machinability of a HCWCI alloy with 25.6% chromium and 3.2% carbon. The alloys were cast, heat-treated and characterised. The characterisation was performed by X-ray diffractometry, scanning electron microscopy, hardness and carbide ...

Tópico(s): High Entropy Alloys Studies

2020 - Elsevier BV | Wear