Produção Nacional
Revisado por pares
Jamile Salim Marinho, Marcelo de Oliveira Lima, Elisabeth Conceição de Oliveira Santos, Iracina Maura de Jesus, Maria da Conceição Nascimento Pinheiro, Cláudio Nahum Alves, Regina Céli Sarkis Müller,
Children from riverside communities located downstream of gold mining areas may be chronically exposed to relatively high levels of MeHg through the consumption of fish of this region. The objective of this study was to evaluate and compare levels of THg and MeHg in hair of children less than 12 years in communities near mines in the municipality of Itaituba and in communities far from prospecting areas in the city of Abaetetuba. The communities of Itaituba (Barreiras and São Luiz do Tapajós) had ...
Tópico(s): Wildlife Conservation and Criminology Analyses
2014 - Hindawi Publishing Corporation | BioMed Research International
Produção Nacional
Tiago Felipe de Abreu Santos, Ricardo Reppold Marinho, Marcelo Torres Piza Paes, Antonio J. Ramírez,
UNS S32205 duplex stainless steel welds were performed by friction stir welding (FSW). Advancing and retreating sides showed distinct characteristics in the welded joint. The advancing side shows the strongest grain refinement which is corroborated by microhardness measurements. The microstructure characterization was carried out by optical, scanning and transmission electron microscopy. The thermomechanically affected zone displays austenite islands deformed in a ferrite matrix. The stir zone (SZ) ...
Tópico(s): Aluminum Alloy Microstructure Properties
2013 - SciELO | Rem Revista Escola de Minas
... zoologia.36.e30610Daniel Alvares Silveira de Assis, Danieli Marinho Nobre, Marcelo Carneiro de Freitas, Leonardo Evangelista Moraes, Alexandre Clistenes ...
Tópico(s): Gender Roles and Identity Studies
1990 - University of Chicago Press | The American Naturalist
Produção Nacional
Revisado por pares
Tiago Felipe de Abreu Santos, Tahiana Francisca da Conceição Hermenegildo, Conrado Ramos Moreira Afonso, R.R. Marinho, Marcelo Torres Piza Paes, Antonio J. Ramírez,
Friction stir welding (FSW) is a solid-state joining process with numerous advantages such as good dimensional stability and repeatability, which is widely used Al alloys and with a great potential for critical joining applications involving high melting temperature alloys. Twelve millimeter thick plates of ISO 3183 X80M (API 5L X80) steel was friction stir welded using two passes on both sides of the plate using ceramic tools. Different heat inputs were obtained using a fix travel (welding) speed ...
Tópico(s): Aluminum Alloy Microstructure Properties
2010 - Elsevier BV | Engineering Fracture Mechanics
Produção Nacional
Revisado por pares
R. G. Gomes, L. A. Lisboa, C.B. Silva, Marilu Constantino Max, Polyana Carolina Marino, R. L. Oliveira, Suellen Miguez González, Thales Ricardo Rigo Barreiros, Luciana Simões Rafagnin Marinho, Marcelo Marcondes Seneda,
The aim of this study was to evaluate the effects of different concentrations of ascorbic acid (25, 50, and 100 μg/mL) in supplemented minimum essential medium (MEM+) on the development of equine preantral follicles that were cultured in vitro for 2 or 6 days. The contralateral ovaries (n = 5) from five mares in seasonal anestrus were collected from a local abattoir. Nine ovarian tissue fragments of approximately 5 × 5 × 1 mm were obtained from each animal. One fragment was immediately fixed and subjected ...
Tópico(s): Spaceflight effects on biology
2015 - Elsevier BV | Theriogenology
Produção Nacional
Revisado por pares
Julián Arnaldo Ávila, Cassius Olívio Figueiredo Terra Ruchert, Paulo Roberto Mei, Ricardo Reppold Marinho, Marcelo Torres Piza Paes, Antonio J. Ramírez,
Friction stir welding (FSW) is a promising candidate for use in pipeline steels because it offers high productivity and sound welded joints. This study presents a fracture toughness assessment of FSW-welded two-pass butt joints, different regions within the joints and tests temperatures (25 °C, −15 °C, −20 °C, −35 °C, −40 °C) were used. Base plates of API-X80 steel 12 mm thick were FSW-welded using two different pass sequences, coincident and alternate directions. The results presented consistently high toughness ...
Tópico(s): Hydrogen embrittlement and corrosion behaviors in metals
2015 - Elsevier BV | Engineering Fracture Mechanics
Produção Nacional
Revisado por pares
Fábio Morotti, Thales Ricardo Rigo Barreiros, Fernanda Zandonadi Machado, Suellen Miguez González, Luciana Simões Rafagnin Marinho, Marcelo Marcondes Seneda,
Recent studies indicate that the antral follicle population may be of paramount importance to improve reproductive performance in cows. There is already an agreement that the antral follicle count (AFC; follicles ≥3 mm in diameter) is a highly variable trait among animals, but with high repeatability in the same individual. Thus, females can be classified into low, intermediate or high AFC. Several studies in Bos taurus show a positive correlation between AFC and fertility parameters, such as increased ...
Tópico(s): Reproductive Biology and Fertility
2015 - Colégio Brasileiro de Patologia Animal (CBPA) | Animal Reproduction
Produção Nacional
Revisado por pares
Eduardo P. Amaral, Elisabete Lopes Conceição, Diego L. Costa, Michael S. Rocha, Jamocyr Moura Marinho, Marcelo Cordeiro‐Santos, Maria Regina D’Império Lima, Theolis Barbosa, Alan Sher, Bruno B. Andrade,
Mycobacterium tuberculosis infection is thought to induce oxidative stress. N-acetyl-cysteine (NAC) is widely used in patients with chronic pulmonary diseases including tuberculosis due to its mucolytic and anti-oxidant activities. Here, we tested whether NAC exerts a direct antibiotic activity against mycobacteria. Oxidative stress status in plasma was compared between pulmonary TB (PTB) patients and those with latent M. tuberculosis infection (LTBI) or healthy uninfected individuals. Lipid peroxidation, ...
Tópico(s): Immune cells in cancer
2016 - BioMed Central | BMC Microbiology
Produção Nacional
Revisado por pares
Pedro Henrique Costa Pereira da Cunha, Guilherme Vieira Braga Lemos, Luciano Bergmann, Afonso Reguly, Jorge F. dos Santos, Ricardo Reppold Marinho, Marcelo Torres Piza Paes,
The aim of this study was to characterize mechanical and microstructural characteristics of friction-stir-welded GL E36 shipbuilding steel. The tool rotational speed was kept constant at 500 rpm and different welding speeds were used (1, 2 and 3 mm/s) to achieve different heat inputs. Thermal cycles were monitored by thermocouples placed near the weld face. The welded joints showed a very good esthetics and homogeneous surface quality that indicate a stability of the considered process parameters. ...
Tópico(s): Mechanical stress and fatigue analysis
2018 - Elsevier BV | Journal of Materials Research and Technology
Produção Nacional
Revisado por pares
Isabele Picada Emanuelli, Camila Bortoliero Costa, Luciana Simões Rafagnin Marinho, Marcelo Marcondes Seneda, Flávio Vieira Meirelles,
This study investigated the interactions between cumulus cells (CCs) and oocytes and programmed cell death in bovine cumulus-oocyte complexes (COCs) with different morphological characteristics. DNA fragmentation was assessed in CCs at 0 and 24 h of maturation, as well as parthenogenetic developmental competence on the 9th day post-activation, blastocyst quality and BCL-2 and BAX transcript levels in matured CCs. Most immature oocytes in the COC-A group (full cumulus and several compact layers) were ...
Tópico(s): Renal and related cancers
2018 - Elsevier BV | Theriogenology
Produção Nacional
Revisado por pares
Tito Aureliano, Aline M. Ghilardi, Julian Cristian Gonçalves da Silva, Agustín G. Martinelli, Luiz Carlos Borges Ribeiro, Thiago da Silva Marinho, Marcelo Adorna Fernandes, Frésia Ricardi-Branco, P. Martin Sander,
There is a necessity to systematically sample taxa to enlighten our knowledge on the presence of histological correlates of avian-like air sacs among dinosaurs. This work expands the studies on the occurrence of pneumosteum in sauropods to the Brazilian lithostrotian titanosaur Uberabatitan ribeiroi. This confirms previous hypotheses on the insertion of an air sacs system on titanosaurian vertebrae based on external observation and CT-scans. We also highlight that diagenesis can obliterate traces ...
Tópico(s): Ichthyology and Marine Biology
2019 - Elsevier BV | Cretaceous Research
Produção Nacional
Revisado por pares
Nina Marí Gual Pimenta de Queiroz, Fábio V. Marinho, Marcelo Chagas, Luciana C. C. Leite, E. Jane Homan, Mariana T. Q. de Magalhães, Sérgio C. Oliveira,
This article discusses standard and new disruptive strategies in the race to develop an anti-COVID-19 vaccine. We also included new bioinformatic data from our group mapping immunodominant epitopes and structural analysis of the spike protein. Another innovative approach reviewed here is the use of BCG vaccine as priming strategy and/or delivery system expressing SARS-CoV-2 antigens.
Tópico(s): COVID-19 Clinical Research Studies
2020 - Elsevier BV | Microbes and Infection
Produção Nacional
Revisado por pares
Bruna Lavinas Sayed Picciani, Ana Gabriela Bausen, Bruna Michalski dos Santos, Marcello Alves Marinho, Marcelo Brito Faria, Luciana Freitas Bastos, Arkadiusz Dziedzic,
The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.
Tópico(s): COVID-19 and healthcare impacts
2020 - Wiley | Special Care in Dentistry
Produção Nacional
Revisado por pares
Mirian Letícia Carmo Bastos, João Victor Silva-Silva, Jorddy Neves Cruz, Amanda Roberta Palheta da Silva, Alexandre Augusto Bentaberry-Rosa, Gisele da Costa Ramos, José Edson de Sousa Siqueira, Márlia Coelho–Ferreira, Sandro Percário, Patrícia Santana Barbosa Marinho, Andrey Moacir do Rosário Marinho, Marcelo de Oliveira Bahia, Maria Fâni Dolabela,
Gastric cancer is among the major causes of death from neoplasia leading causes of death worldwide, with high incidence rates and problems related to its treatment. Here, we outline how Geissospermum sericeum exerts antitumor activity on the ACP02 cell line (human gastric adenocarcinoma) and the mechanism of cell death. The ethanol extract and fractions, neutral fraction and alkaloid fraction, were characterized by thin-layer chromatography and HPLC-DAD, yielding an alkaloid (geissoschizoline N4-methylchlorine) ...
Tópico(s): Pharmacogenetics and Drug Metabolism
2023 - Multidisciplinary Digital Publishing Institute | Pharmaceuticals
Produção Nacional
Revisado por pares
Flávio José da Silva, R.R. Marinho, Marcelo Torres Piza Paes, Sinésio Domingues Franco,
In the design of hydraulic machines, the selection of the correct materials and the application of surface treatments are essential to improve the cavitation resistance of components. In this investigation, the cavitation erosion behavior of the compound and of the diffusion layer of ion-nitrided 34 CrAlNi 7 steel was studied. Before nitriding, the 34 CrAlNi 7 steel was heat treated by quenching and tempering and by annealing, generating microstructures that are used or could be used in the production ...
Tópico(s): Fusion materials and technologies
2013 - Elsevier BV | Wear
Produção Nacional
Revisado por pares
Luciano Pasqualoto Canellas, José Antônio Azevedo Espíndola, José Guilherme Marinho Guerra, Marcelo Grandi Teixeira, Ary Carlos Xavier Velloso, Víctor Marcos Rumjanek,
The availability and the reserves of organic phosphorus are controlled by its mineralization rate and are also influenced by changes in soil management. The objective of this study was to evaluate the influence of soil covering with different leguminous plant on soil organic P by 31P-NMR spectroscopy. Alkaline soil extracts were obtained from two depths (0-5 and 5-10 cm) of an Ultisol cultivated with herbaceous perennial leguminous plants (Arachis pintoi, Pueraria phaseoloides, Macroptilium atropurpureum). ...
Tópico(s): Phytase and its Applications
2004 - Embrapa Informação Tecnológica | Pesquisa Agropecuária Brasileira
Produção Nacional
Revisado por pares
Eduardo Marinho Tassi, Marcelo Abramoff Continentino, Emília Matos do Nascimento, Basílio de Bragança Pereira, Roberto Coury Pedrosa,
Patients with Chagas disease and segmental wall motion abnormality (SWMA) have worse prognosis independent of left ventricular ejection fraction (LVEF). Cardiac magnetic resonance (CMR) is currently the best method to detect SWMA and to assess fibrosis.To quantify fibrosis by using late gadolinium enhancement CMR in patients with Chagas disease and preserved or minimally impaired ventricular function (> 45%), and to detect patterns of dependence between fibrosis, SWMA and LVEF in the presence of ventricular ...
Tópico(s): Cardiovascular Function and Risk Factors
2014 - Sociedade Brasileira de Cardiologia (SBC) | Arquivos Brasileiros de Cardiologia
Produção Nacional
Revisado por pares
Fernando Marinho Mezzadri, Marcelo Moraes e Silva, Katiuscia Mello Figuerôa, Fernando Augusto Starepravo,
This article provides an overview of sport policies in Brazil. The investigation methodology involved a critical analysis of important national policy documents dedicated to the subject. The article begins with an analysis of the creation of the field, since the passage of the first laws in the 1940s, up to the current stage of Brazilian sport. As a conclusion, the paper finds that the sports policy in Brazil moved away from an the organization model centred only on the state. However, it was noted ...
Tópico(s): Sports and Physical Education Studies
2014 - Taylor & Francis | International Journal of Sport Policy and Politics
Produção Nacional
Revisado por pares
Adriano Perín, José Guilherme Marinho Guerra, Marcelo Grandi Teixeira,
O objetivo deste trabalho foi determinar as taxas de cobertura do solo, produção de biomassa e acumulação total de N, P e K da parte aérea da leguminosa herbácea perene amendoim forrageiro (Arachis pintoi Krapov. & W.C. Greg.), em diferentes densidades e espaçamentos de plantio. O delineamento experimental adotado foi de blocos ao acaso, em arranjo fatorial 2x4, com quatro repetições. Os tratamentos constaram de espaçamentos entre sulcos de plantio (25 e 50 cm), e de densidades de plantas (2, 4, 8 e ...
Tópico(s): Growth and nutrition in plants
2003 - Embrapa Informação Tecnológica | Pesquisa Agropecuária Brasileira
Produção Nacional
Revisado por pares
María do Carmo Borges de Souza, Ana Cristina Allemand Mancebo, Christina de A. da Rocha, Carlos André Henriques, Marcelo Marinho de Souza, Fernanda Cardoso,
ObjectiveTo evaluate the impact of two different incubation environments—class 8 versus class 5—on embryo quality and pregnancy rate.DesignRetrospective comparative study.SettingPrivate fertility and gynecology clinic.Patient(s)123 consecutive intracytoplasmic sperm injection (ICSI) cycles were analyzed from January 2002 to February 2005. Cycles were divided into two groups: in group I (n = 60), the embryo culture was performed in class 8 air quality; in group II (n = 63), the embryo culture was performed ...
Tópico(s): Sperm and Testicular Function
2008 - Elsevier BV | Fertility and Sterility
Produção Nacional
Revisado por pares
Eduardo Borges de Melo, João Paulo Ataíde Martins, Teresa Cristina Marinho Jorge, Marcelo Couto Friozi, Márcia M. C. Ferreira,
A quantitative structure–activity relationship (QSAR) study of twenty flavonoid derivatives with antimutagenic activity against 3-nitrofluoranthene (3-NFA) was performed by Partial Least Squares (PLS), using Ordered Predictors Selection (OPS) algorithm for variable selection. Four descriptors (PJI2, Mor27m, G1e and R4u+) were selected and a good model (n = 19; R2 = 0.747; SEC = 0.332; PRESScal = 1.768; F(2,27) = 23.585; QLOO2 = 0.590; SEV = 0.388; PRESSval = 2.858; Rpred2 = 0.591; SEP = 0.394; AREpred = 5.230%; k = 1.005; k′ = ...
Tópico(s): Phytochemicals and Antioxidant Activities
2010 - Elsevier BV | European Journal of Medicinal Chemistry
Produção Nacional
Revisado por pares
Antonio N.N. Martins, Marcelo Marinho de Figueiredo, Orlandil D. Rocha, Maria A. F. Fernandes, Selma M. B. Jerônimo, Mário Emílio Teixeira Dourado Júnior,
We performed a cross-sectional study of stroke type frequency at a local emergency hospital, in Natal, Brazil. The sample consisted of all patients who were admitted to an emergency hospital with a presumptive diagnosis of stroke. Of the 416 patients, 328 were studied, 88 were excluded for not meeting inclusion criteria, 74.7% (n= 245) had ischemic stroke 17.7% (n=58) had intracerebral hemorrhage, 7.6% (n=25) had subarachnoid hemorrhage; 173 were men (52.7%). Mean age was 64.1 years. The intrahospital ...
Tópico(s): Intracerebral and Subarachnoid Hemorrhage Research
2007 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria
Produção Nacional
Revisado por pares
Luciano Pasqualoto Canellas, José Antônio Azevedo Espíndola, Carlos Eduardo de Rezende, Plínio Barbosa de Camargo, Daniel Basílio Zandonadi, Víctor Marcos Rumjanek, José Guilherme Marinho Guerra, Marcelo Grandi Teixeira, Raimundo Braz‐Filho,
Using herbaceous legumes in agricultural systems yields great quantities of plant residues, allowing changes in soil organic matter quality and content over the years. This study was conducted on an Ultisol, at Seropédica, RJ, Brazil, to evaluate the effects of different perennial herbaceous legumes on soil organic matter quality. A factorial scheme with three replications was used to evaluate the species: forage groundnut cv. BR-14951 (Arachis pintoi), tropical kudzu (Pueraria phaseoloides), and ...
Tópico(s): Agronomic Practices and Intercropping Systems
2004 - UNIVERSIDADE DE SÃO PAULO | Scientia Agricola
Produção Nacional
Revisado por pares
Maurício Isaac Panício, Lucas Mateus, Irapuá Ferreira Ricarte, Marcelo Marinho de Figueiredo, Thiago Gonçalves Fukuda, Jamile Cavalcanti Seixas, Maria Elizabeth Ferraz, Gisele Sampaio Silva,
Little is known about stroke patients' awareness about the warning signs of stroke and its therapeutic time window in Brazil.We interviewed consecutive patients with acute stroke admitted to a terciary public hospital in Brazil. Data collected included demographics, mode of arrival, National Institutes of Health Stroke Scale (NIHSS) scores and knowledge of stroke warning signs and therapeutic time window. Early arrival was defined as within 4.5 hours of symptoms onset.Although 66.2% of patients knew ...
Tópico(s): Stroke Rehabilitation and Recovery
2014 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria
Produção Nacional
Revisado por pares
Marcelo Marinho de Figueiredo, Ana Clara Tude Rodrigues, Monique Bueno Alves, Miguel Cendoroglo Neto, Gisele Sampaio Silva,
OBJECTIVE: Atrial fibrillation is a common arrhythmia that increases the risk of stroke by four-to five-fold.We aimed to establish a profile of patients with atrial fibrillation from a population of patients admitted with acute ischemic stroke or transient ischemic attack using clinical and echocardiographic findings.METHODS: We evaluated patients consecutively admitted to a tertiary hospital with acute ischemic stroke or transient ischemic attack.Subjects were divided into an original set (admissions ...
Tópico(s): Cardiac Arrhythmias and Treatments
2014 - Elsevier BV | Clinics
Produção Nacional
Revisado por pares
Marcelo Marinho, Suzana Sampaio, Hermano Perrelli de Moura,
Tópico(s): Construction Project Management and Performance
2017 - Springer Science+Business Media | Innovations in Systems and Software Engineering
Produção Nacional
Revisado por pares
Marcelo Marinho, Alexandre Luna, Sarah Beecham,
Drivers for globalization are significant where today’s organizations look for cheaper and faster ways to develop software as well as ways to satisfy quality and investment requirements imposed by customers, shareholders, and governments. Given these needs, Global Software Development (GSD) has become a “normal” way of doing business. Working in GSD often require teams of different cultures to work together. A poor understanding of cultural differences can create barriers to trust or missed opportunities. ...
Tópico(s): Knowledge Management and Sharing
2018 - Springer Science+Business Media | Lecture notes in computer science
Produção Nacional
Revisado por pares
Alexandre Luna, Marcelo Marinho, Hermano Perrelli de Moura,
Tópico(s): Collaboration in agile enterprises
2019 - Springer Science+Business Media | Innovations in Systems and Software Engineering
Produção Nacional
Rafael Camara, Marcelo Marinho, Suzana Sampaio, Saulo Cadete,
The dissipation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has already taken on pandemic proportions, affecting over 100 countries in a couple of weeks. The evolution of the disease and its economic impact is highly uncertain, which brings challenges for newly created software companies. Software startups are companies that create innovative software products and services in a dynamic and fast-growing market. Agile Software Methods aims to enable startups in responding to uncertainty ...
Tópico(s): Open Source Software Innovations
2020 - | International Journal of Software Engineering & Applications
Maria Clea Marinho Lima, Marcelo Moraes Valênça, Carlos Eduardo Machado, Maria Edvany de Melo Pereira, Pedro Kempter Brant,
O Transtorno do Espectro Autista (TEA) é caracterizado por déficits persistentes na comunicação social, padrões restritos e repetitivos de comportamento, interesses ou atividades e, muitas vezes, deficiências intelectuais. O TEA possui várias comorbidades prevalentes, como distúrbios do sono, distúrbio do déficit de atenção/hiperatividade e epilepsia. Existe um interesse crescente em canabinóides, especialmente canabidiol (CBD), como monoterapia ou tratamento complementar para os principais sintomas ...
Tópico(s): Child Development and Digital Technology
2020 - | Jornal Memorial da Medicina