Produção Nacional
Revisado por pares
Fábio Bertequini Leão, Rodrigo Pereira, José Roberto Sanches Mantovani,
This paper proposes a methodology based on the unconstrained binary programming (UBP) model and an optimization immune algorithm (IA) to estimate fault sections in electric power systems. The UBP model is formulated using the parsimonious set covering theory for associating the alarms of the protective relay functions informed by the SCADA (supervisory control and data acquisition) system and the expected states of the protective relay functions. The IA is developed to minimize the UBP model and to ...
Tópico(s): Optimal Power Flow Distribution
2010 - Elsevier BV | Electric Power Systems Research
Produção Nacional
F. M. Souza, Salviano A. Leão, Rodrigo Gester, Antti‐Pekka Jauho,
We study spin-polarized transient transport in a quantum dot coupled to two ferromagnetic leads subjected to a rectangular bias voltage pulse. Time-dependent spin-resolved currents, occupations, spin accumulation, and tunneling magnetoresistance (TMR) are calculated using both nonequilibrium Green function and master equation techniques. Both parallel- and antiparallel-lead magnetization alignments are analyzed. Our main findings are a dynamical spin accumulation that changes sign in time, a short- ...
Tópico(s): Semiconductor materials and devices
2007 - American Physical Society | Physical Review B
Produção Nacional
Revisado por pares
Helder Luís Chaves Dias, Sebastião de Campos Valadares Filho, José Fernando Coelho da Silva, Mário Fonseca Paulino, Paulo Roberto Cecon, Maria Ignês Leão, Rodrigo Vidal Oliveira,
RESUMO - Um ensaio foi realizado com o objetivo de avaliar os efeitos de cinco níveis de concentrado nas rações sobre o consumo e as digestibilidades aparentes totais e parciais de matéria seca (MS), matéria orgânica (MO), proteína bruta (PB), extrato etéreo (EE), carboidratos totais (CHO), fibra em detergente neutro (FDN) e carboidratos não-estruturais (CNE). Cinco novilhos F1 Limousin x Nelore fistulados no rúmen, abomaso e íleo foram alimentados à vontade com dietas que continham 25,0; 37,5; 50,0; 62, ...
Tópico(s): Nuts composition and effects
2000 - Sociedade Brasileira de Zootecnia | Revista Brasileira de Zootecnia
Produção Nacional
Revisado por pares
Andréia de Andrade Mâncio, K. M. B. da COSTA, C.C. Ferreira, Marcelo Costa Santos, Dyenny Ellen Lima Lhamas, Sílvio Alex Pereira da Mota, Raquel A. C. Leão, Rodrigo O. M. A. de Souza, M.E. Araújo, Luiz Eduardo Pizarro Borges, Nélio Teixeira Machado,
In this study, the influence of catalyst content on the physical–chemical properties, yield, and chemical composition of organic liquid products (OLP) obtained by thermal catalytic cracking of palm oil (Elaeis guineensis, Jacq.) was studied at a pilot scale. The experiments were carried out in a reactor of 143 L, running in batch mode at 450 °C and 1 atm, using 5%, 10%, 15%, and 20% (w/w) Na2CO3 as the catalyst. Physical–chemical characterization of OLP was conducted for acid value, saponification value, ...
Tópico(s): Biofuel production and bioconversion
2016 - Elsevier BV | Industrial Crops and Products
Produção Nacional
Revisado por pares
Bruno Sangiorgi, Helder Teixeira de Freitas, Josiane Lilian dos Santos Schiavinato, Vitor Leão, Rodrigo Haddad, Maristela Delgado Orellana, Vítor M. Faça, Germano Aguiar Ferreira, Dimas Tadeu Covas, Marco A. Zago, Rodrigo Alexandre Panepucci,
Multipotent mesenchymal stromal cells (MSC) are imbued with an immunosuppressive phenotype that extends to several immune system cells. In this study, we evaluated how distinct Toll-like receptor (TLR) agonists impact immunosuppressive properties of bone marrow (BM)-MSC and explored the potential mechanisms involved. We show that TLR4 stimulation by lipopolysaccharide (LPS) restricted the ability of MSC to suppress the proliferation of T lymphocytes, increasing the gene expression of interleukin (IL)- ...
Tópico(s): Immune cells in cancer
2016 - Elsevier BV | Cytotherapy
Produção Nacional
Revisado por pares
Andréia de Andrade Mâncio, K. M. B. da COSTA, C.C. Ferreira, Marcelo Costa Santos, Dyenny Ellen Lima Lhamas, Sílvio Alex Pereira da Mota, Raquel A. C. Leão, Rodrigo O. M. A. de Souza, M.E. Araújo, Luiz Eduardo Pizarro Borges, Nélio Teixeira Machado,
In this work, the influence of catalyst content on the physicochemical properties (acid value, saponification value, specific gravity, kinematic viscosity, and flash point), yield and chemical composition (hydrocarbons and oxygenates) of organic liquid products (OLP) obtained by thermal-catalytic cracking of palm oil (Elaeis guineensis, Jacq.) has been systematically investigated in technical scale. The pilot experiments were carry out in a stirred tank slurry reactor of 143 L, operating in batch mode ...
Tópico(s): Lubricants and Their Additives
2016 - Elsevier BV | Journal of Analytical and Applied Pyrolysis
Produção Nacional
Revisado por pares
Amanda Silva de Miranda, Marcus V. de M. Silva, Fernanda C. Dias, Stefânia P. de Souza, Raquel A. C. Leão, Rodrigo O. M. A. de Souza,
Herein, we report a method for the continuous flow DKR of rac -1-phenylethanol catalyzed by CAL-B and VOSO 4 , using a single packed-bed containing both catalysts.
Tópico(s): Analytical Chemistry and Chromatography
2017 - Royal Society of Chemistry | Reaction Chemistry & Engineering
Produção Nacional
Revisado por pares
Bruna Palma, Raquel A. C. Leão, Rodrigo O. M. A. de Souza, Omar Pandoli,
Lignocellulose-based bamboo powder was used as pristine support to immobilize two different biocatalysts: Candida Antarctica lipase B and Rhizomucor miehei lipase. Both, IB-CalB and IB-RM, physically absorbed on bamboo carrier presented considerable recycling efficiency, up to 10 consecutive cycles, in batch mode for the ethyl palmitate synthesis with conversion about 50 and 80 %, respectively. The kinetic resolution of racemic-1-phenylethanol mediated by IB-CalB showed a higher conversion against ...
Tópico(s): Catalysis for Biomass Conversion
2020 - Elsevier BV | Catalysis Today
Produção Nacional
Revisado por pares
Marcelo T. Lima, Fernanda G. Finelli, Alline V. B. de Oliveira, Vinícius Kartnaller, João Cajaiba, Raquel A. C. Leão, Rodrigo O. M. A. de Souza,
Dimethyl fumarate (DMF) has recently gained attention due to its use as a pro-drug in different pharmaceutical preparations, here in we present our work on a cascade methodology in short reaction times and quantitative yields.
Tópico(s): Click Chemistry and Applications
2020 - Royal Society of Chemistry | RSC Advances
Produção Nacional
Revisado por pares
Luiza A.D. Benincá, Alexandre S. França, Gabriela Coelho Brêda, Raquel A. C. Leão, Rodrigo Volcan Almeida, Frank Hollmann, Rodrigo O. M. A. de Souza,
The fatty acid photodecarboxylase from Chlorella variabilis NC64A (CvFAP) promotes the elimination of CO2 from fatty acids (Cn) producing the corresponding hydrocarbon (Cn-1). Therefore, this enzyme is of great biotechnological interest since it can be used in alternative biofuel production routes matching the concept of green chemistry. However, due to its recent discovery, this reaction still requires optimizations, which was the focus of the present work together with the application of continuous ...
Tópico(s): Catalytic Processes in Materials Science
2022 - Elsevier BV | Molecular Catalysis
Produção Nacional
Revisado por pares
Fábio Miranda Leão, Rodrigo Geroni Mendes Nascimento, Fabiano Emmert, Graciliano Galdino Alves dos Santos, Nélio Andre Moraes Caldeira, Izildinha Souza Miranda,
The use of forest resources by communities in the Amazon, or of such resources globally, begins with the quantification of the yield potential of the standing forests. Notably, wood volume, biomass, and carbon are the principal variables quantified through forest inventories associated with estimation processes such as allometric models. These processes involve a large number of trees for log scaling, which often would not need to be cut in an exploratory survey. Thus, the aim of this study was ...
Tópico(s): Remote Sensing in Agriculture
2020 - Elsevier BV | Forest Ecology and Management
Produção Nacional
Revisado por pares
Fábio Bertequini Leão, Rodrigo Pereira, José Roberto Sanches Mantovani,
This paper presents a novel mathematical model for fast fault section estimation in a Distribution Control Center (DCC). The mathematical model is divided into two parts, namely: (1) a protection system operations model based on operator's heuristic knowledge of the protection system performance and (2) an optimization Unconstrained Binary Programming (UBP) model based on parsimonious covering theory. In order to solve the UBP model, an Adaptive Genetic Algorithm (AGA) using crossing over and mutation ...
Tópico(s): Power Systems Fault Detection
2014 - Elsevier BV | International Journal of Electrical Power & Energy Systems
Produção Nacional
Revisado por pares
Luana Marotta Reis de Vasconcellos, Leonardo Buso, Geraldo Henrique Leão Lombardo, Rodrigo Othávio de Assunção e Souza, Lafayette Nogueira Júnior, Marco Antônıo Bottıno, Mutlu Özcan,
To evaluate the effect of the opaque layer firing temperature and mechanical and thermal cycling on the flexural strength of a ceramic fused to commercial cobalt-chromium alloy (Co-Cr). The hypotheses were that higher opaque layer temperatures increase the metal/ceramic bond strength and that aging reduces the bond strength.Metallic frameworks (25 x 3 x 0.5 mm(3); ISO 9693) (N = 60) were cast in Co-Cr and airborne-particle abraded (Al(2)O(3): 150 mum) at the central area of the frameworks (8 x 3 mm(2)) ...
Tópico(s): Orthopaedic implants and arthroplasty
2010 - Wiley | Journal of Prosthodontics
Produção Nacional
Revisado por pares
Leãõ Zagury, Rodrigo O. Moreira, Erika Paniago Guedes, Walmir Coutinho, José Carlos Appolinário,
Tópico(s): Metabolism, Diabetes, and Cancer
2004 - Springer Science+Business Media | Obesity Surgery
Produção Nacional
Revisado por pares
Fernando Miranda de Vargas, Charles Ferreira Martins, Guilherme dos Santos Pinto, Marcos Barbosa Ferreira, Hélio de Almeida Ricardo, André Gustavo Leão, Alexandre Rodrigo Mendes Fernandes, A. Teixeira,
Tópico(s): Animal Nutrition and Physiology
2014 - Springer Science+Business Media | Tropical Animal Health and Production
Produção Nacional
Revisado por pares
Catarina de Oliveira Sousa, Paula Rezende Camargo, Ivana Leão Ribeiro, Rodrigo Bezerra de Menezes Reiff, Lori A. Michener, Tânia F. Salvini,
This study described the three-dimensional shoulder motion during the arm elevation in individuals with isolated acromioclavicular osteoarthritis (ACO) and ACO associated with rotator cuff disease (RCD), as compared to controls. Seventy-four participants (ACO = 23, ACO + RCD = 25, Controls = 26) took part of this study. Disability was assessed with the DASH, three-dimensional kinematics were collected during arm elevation in the sagittal and scapular planes, and pain was assessed with the 11-point numeric ...
Tópico(s): Musculoskeletal synovial abnormalities and treatments
2014 - Elsevier BV | Journal of Electromyography and Kinesiology
GH Pereira-Filho, PC Veras, Ronaldo B. Francini‐Filho, RL Moura, Hudson T. Pinheiro, Fernando Z. Gibran, Zaira Matheus, Leonardo M. Neves, GM Amado-Filho,
... de Cerqueira Veras1,2, Ronaldo Bastos Francini-Filho3, Rodrigo Leão de Moura4, Hudson Tercio Pinheiro5,6, Fernando Zaniolo ...
Tópico(s): Coral and Marine Ecosystems Studies
2015 - Inter-Research | Marine Ecology Progress Series
Produção Nacional
Revisado por pares
Inajara Marques Bezerra, Karina Peres Gramacho, Mariana Araújo Barreto, Carlos Werner Hackradt, João Lucas Leão Feitosa, Rodrigo Augusto Torres, Beatrice Padovani Ferreira, Mercedes González‐Wangüemert, Fabiana Cézar Félix‐Hackradt,
The greenback parrotfish, Scarus trispinosus, is the largest herbivorous fish inhabiting Southwestern Atlantic reefs, and was recently included in the IUCN red list of threatened species as endangered due to the overexploitation of their populations. The aim of this work was to evaluate the existence of structured populations (i.e. genetic unities) along a coast of approximately 2000 km of the NE Brazilian coast. The transferability of 17 primers synthesized for Scarus rubroviolaceus was tested for ...
Tópico(s): Fish Biology and Ecology Studies
2018 - Elsevier BV | Marine Environmental Research
NT Lellys, RL Moura, RM Bonaldo, Ronaldo B. Francini‐Filho, Fernando Z. Gibran,
... bioerosion on SW Atlantic reefs Nicole Tiburcio Lellys1, Rodrigo Leão de Moura2, Roberta Martini Bonaldo3, Ronaldo Bastos Francini- ...
Tópico(s): Ichthyology and Marine Biology
2019 - Inter-Research | Marine Ecology Progress Series
Produção Nacional
Revisado por pares
Ediléia Bagatin, Caroline Sousa Costa, Marco Rocha, Fabíola Rosa Picosse, Cristhine Souza Leão Kamamoto, Rodrigo Pirmez, Mayra Ianhez, Hélio Amante Miot,
Isotretinoin is a synthetic retinoid, derived from vitamin A, with multiple mechanisms of action and highly effective in the treatment of acne, despite common adverse events, manageable and dose-dependent. Dose-independent teratogenicity is the most serious. Therefore, off-label prescriptions require strict criteria.To communicate the experience and recommendation of Brazilian dermatologists on oral use of the drug in dermatology.Eight experts from five universities were appointed by the Brazilian ...
Tópico(s): Retinoids in leukemia and cellular processes
2020 - Elsevier BV | Anais Brasileiros de Dermatologia
Produção Nacional
Revisado por pares
Ana Luiza Penna, Camila Machado de Aquino, Maria Suelly Nogueira Pinheiro, Rodrigo Leão Ferreira do Nascimento, Simone Farías-Antúnez, David Augusto Batista Sá Araújo, Carol Mita, Márcia Maria Tavares Machado, Márcia C. Castro,
In March 2020, the COVID-19 outbreak was declared a pandemic by the World Health Organization (WHO), generating stark economic and social repercussions that directly or indirectly affected families' wellbeing and health status.This review aims at mapping the existing evidence on the impact of the COVID-19 pandemic on maternal mental health, early childhood development, and parental practices, worldwide, to identify evidence gaps and better inform future delivery of care and health policy measures. ...
Tópico(s): Global Maternal and Child Health
2023 - BioMed Central | BMC Public Health
Produção Nacional
Revisado por pares
CV Minte-Vera, RL de Moura, Ronaldo B. Francini‐Filho,
... studying reef fish assemblages Carolina V. Minte-Vera1, Rodrigo Leão de Moura2,3,*, Ronaldo B. Francini-Filho2,3 ...
Tópico(s): Marine and fisheries research
2008 - Inter-Research | Marine Ecology Progress Series
Luz Alejandra Lorca, Ivana Leão Ribeiro, Rodrigo Torres‐Castro, Cinara Sacomori, Carlos Rivera,
To evaluate functional state, it is fundamental to have simple instruments that allow for monitoring the course of symptoms and the commitment of the functional status that adult COVID-19 survivors may present. This study aims to evaluate the psychometric properties of the Post COVID-19 Functional Status (PCFS) scale.A cross-sectional scale validation study was performed. In the content validation 22-health professionals, whom through expert judgment evaluated the scale in the sufficiency, clarity, ...
Tópico(s): Intensive Care Unit Cognitive Disorders
2021 - Elsevier BV | Rehabilitación
Produção Nacional
Revisado por pares
Marcelo A. do Nascimento, Larissa E. Gotardo, Eduardo Miguez Bastos, Fábio C. L. Almeida, Raquel A. C. Leão, Rodrigo O. M. A. de Souza, Robert Wojcieszak, Ivaldo Itabaiana,
Every year, a large amount of residual agroindustrial waste has been generated and only around 10% is in fact reused. The development of new strategies for biomass valorization is important to add value to these commodities, since biomass is an excellent alternative feedstock to obtain chemicals of interest from renewable resources. The major compound of pyrolytic treatment of lignocellulosic biomass is levoglucosan (1,6-anhydroglucopyranose), an anhydro-sugar that can be transformed into glucose ...
Tópico(s): Catalysis for Biomass Conversion
2019 - Multidisciplinary Digital Publishing Institute | Sustainability
Produção Nacional
Revisado por pares
Alexandre de S. França, Raquel A. C. Leão, Rodrigo O. M. A. de Souza,
Tópico(s): Analytical Chemistry and Chromatography
2020 - Springer Science+Business Media | Journal of Flow Chemistry
Produção Nacional
Revisado por pares
Ana Caroline Oliveira Vasconcelos, Alessandro Ponce de Leão Giupponi, Rodrigo Lopes Ferreira,
A new species of the genus Charinus Simon, 1892 is described from caves in the Rio Grande do Norte, Brazil. This is the first record of the genus for the state. This paper presents a map of the Charinus species distribution in Brazil with new records and a map of potential distribution of the genus in South and Central Americas. An updated key for Charinus species from Brazil is also presented.
Tópico(s): Venomous Animal Envenomation and Studies
2013 - Q15088586 | Zootaxa
Produção Nacional
Revisado por pares
Evelyn V. M. Camelo, Daniel C. Mograbi, Rafael de Assis da Silva, Cristina M. T. Santana, Rodrigo Leão Ferreira do Nascimento, Adriana Cardoso de Oliveira e Silva, Antônio Egídio Nardi, Elie Cheniaux,
Tópico(s): Schizophrenia research and treatment
2019 - Springer Science+Business Media | Psychiatric Quarterly
Produção Nacional
Revisado por pares
Pedro Olavo de Paula Lima, Mateus Bastos de Souza, Tailândia Viana Sampaio, Gabriel Peixoto Leão Almeida, Rodrigo Ribeiro de Oliveira,
CrossFit® is usually composed of high intensity workout routines and is executed quickly, repetitively and with limited rest time. Previous studies have identified a high prevalence of injuries in CrossFit®. This study aimed to determine the prevalence of CrossFit-related musculoskeletal injuries and to identify potential associated factors.A cross-sectional study was conducted with 413 CrossFitters. Participants completed a questionnaire containing personal data, training characteristics and injury ...
Tópico(s): Cardiovascular Effects of Exercise
2020 - Edizioni Minerva Medica | The Journal of Sports Medicine and Physical Fitness
... CTAndrei S. Purysko, , Erick M. Remer, , Hilton M. Leão Filho, , Leonardo K. Bittencourt, , Rodrigo V. Lima, , and Douglas J. Racy, 8 July ...
Tópico(s): Pediatric Hepatobiliary Diseases and Treatments
2003 - Radiological Society of North America | Radiology
Produção Nacional
Revisado por pares
Sheila A. Engi, Fábio C. Cruz, Rodrigo M. Leão, Fernando Morgan de Aguiar Corrêa, Cleopatra S. Planeta, Carlos C. Crestani,
Abuse of cocaine and androgenic–anabolic steroids has become a serious public health problem. Despite reports of an increase in the incidence of simultaneous illicit use of these substances, potential toxic interactions between cocaine and androgenic–anabolic steroids in the cardiovascular system are unknown. In the present study, we investigated the effect of single or combined administration of testosterone and cocaine for 1 or 10 consecutive days on basal cardiovascular parameters, baroreflex ...
Tópico(s): Heart Rate Variability and Autonomic Control
2011 - Lippincott Williams & Wilkins | Journal of Cardiovascular Pharmacology