... Marcel Bonilha Dezena, Renata Mauri, Fabio Alessandro Proença Barros, Paulo César Pires Rosa
Tópico(s): Plant Pathogens and Fungal Diseases
2016 - | Journal of Applied Biology & Biotechnology

Ariana de Souza Soares, Pedro Esteves Duarte Augusto, Bruno Ricardo de Castro Leite Júnior, Camila Nogueira, Érica Nascif Rufino Vieira, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta, Afonso Mota Ramos,
This work studied the ultrasound technology as an alternative to enhance the reaction of sucrose inversion. To achieve it, the effect of ultrasound processing was evaluated in three situations: the reaction (invertase acting on substrate under ultrasound processing), the isolated substrate (sucrose) and the isolated enzyme (invertase). Ultrasound (25 kHz, 22 W/L) processing was conducted under different conditions of pH and temperature. The ultrasound assisted reaction was accelerated in relation to ...
Tópico(s): Freezing and Crystallization Processes
2019 - Elsevier BV | LWT

Luciana Azevedo, Paula Ferreira de Araújo Ribeiro, Jéssica A. Oliveira, Maryana G Correia, Flávia Maria de Moraes Ramos, Eduardo Basílio de Oliveira, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta,
Camu-camu (Myrciaria dubia) is a typical Amazonian fruit and has high antioxidant capacity due to its high levels of vitamin C and phenolic compounds. This study aimed to determine the phytochemicals, antioxidant capacity and antimutagenic effects of camu-camu fruits with different maturity stages grown in dry (commercial cultivation) or flooded environments (native cultivation, Amazon).Total polyphenols, ascorbic acid and in vitro antioxidant capacity levels were higher in ripe fruits grown in a commercial ...
Tópico(s): Bee Products Chemical Analysis
2018 - Wiley | Journal of the Science of Food and Agriculture

Juliana de Cássia Gomes Rocha, Kéllen Wanessa Coutinho Viana, Adriana Corrêa Mendonça, Nathália de Andrade Neves, Antônio Fernandes de Carvalho, Valéria Paula Rodrigues Minim, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta,
The objective of this study was to develop, characterize and evaluate the stability of whey protein beverages containing anthocyanins from jabuticaba skins. Beverage formulations containing 0.5% (F1), 2.0% (F2), 4.0% (F3) and 6.0% (F4) of whey proteins and 2.0 mL of the concentrated phenolic extract from jabuticaba skins were developed. Physicochemical parameters (pH, acidity, total soluble solids, protein content, viscosity, color), antioxidant capacity, total anthocyanins and total phenols of the beverages ...
Tópico(s): Food Chemistry and Fat Analysis
2018 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Maria de Lourdes C. Barros, Paulo Cesar Colonna Rosman,
Jirau hydropower plant (Jirau HPP) is one of the largest scale run-of-river hydro-projects in the Madeira River, Brazilian Amazon. This project has attracted strong national and international attention, especially with respect to environmental issues, because the Madeira River supports a diverse fish species. Many of these are migratory species and impact the reproductive stocks of the fishes that live in the Amazon River. Numerical simulations to predict fish eggs and larvae drift have been scarce ...
Tópico(s): Hydrology and Sediment Transport Processes
2018 - Springer Science+Business Media | Journal of the Brazilian Society of Mechanical Sciences and Engineering

Luciana Marques Vieira, Letícia Mafle Guimarães MARINHO, Juliana de Cássia Gomes Rocha, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta,
The objective of this study was to develop simple mathematical models for the prediction of the total anthocyanin content of fruits and vegetables, using colorimetry. Phenolic extracts of 13 species of fruits and vegetables were produced using 70% acidified ethanol and 70% ethanol. The quantification of the total anthocyanins of the extracts was performed by the spectrophotometric method, and the color characterization was done through the tristimulus colorimeter. The correlation between the L* ...
Tópico(s): Fermentation and Sensory Analysis
2018 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Juliana de Cássia Gomes Rocha, Fernanda Ramalho Procópio, Adriana Corrêa Mendonça, Luciana Marques Vieira, Ítalo Tuler Perrone, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta,
This study was aimed at optimizing the ultrasound-assisted extraction (UAE) of phenolic compounds from jussara and blueberry fruits using the response surface methodology (RSM). UAE was found to be more efficient to extract phenolic compounds from both fruits than the conventional extraction. The optimum extraction conditions for the jussara fruits were: extraction time between 30 and 62 min for total anthocyanins and total phenolics, fruit:solvent ratio of 10% and 6% (w/v) for total anthocyanins and ...
Tópico(s): Botanical Research and Applications
2017 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Taíse Robinson Kunrath, Mónica Cadenazzi, Daniel Martins Brambilla, Ibanor Anghinoni, Aníbal de Moraes, Raquel Santiago Barro, Paulo César de Faccio Carvalho,
Feeding livestock with cover crops can improve the efficiency and sustainability of integrated crop–livestock systems under no-till. However, no-till systems are based on permanent soil cover by organic material, so grazing livestock can compete for soil cover. Hence, managing stocking rates during the grazing period of the cultivated forage species is a key factor to assure enough herbage mass for maintaining long-term sustainable no-till systems. In this context, the objective of this study was ...
Tópico(s): Ruminant Nutrition and Digestive Physiology
2013 - Elsevier BV | European Journal of Agronomy

Maria Francisca Soares Pereira, Salvador Barros Torres, Paulo César Ferreira Linhares, Anna Catarina Costa Paiva, Antonia Edivanilde Soares da Paz, Alfredo Henrique Dantas,
A qualidade das sementes esta relacionada de forma direta ao seu potencial fisiológico, representado pela germinação e/ou vigor, expressando sua capacidade de originar plântulas normais. O objetivo do estudo foi a análise dos efeitos da temperatura e do tempo de exposição ao teste de envelhecimento acelerado sobre os parâmetros: germinação, germinação na primeira contagem, emergência, Índice de velocidade de emergência, comprimento de parte aérea e massa seca. O ensaio foi conduzido no delineamento ...
Tópico(s): Soil Management and Crop Yield
2011 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Revista Brasileira de Plantas Medicinais

Jhonatan Paulo Barro, César Tiago Forte, Diego Trentin, Maurício Albertoni Scariot, Paola Mendes Milanesí,
ABSTRACT Leaf rust (Puccinia triticina) is one of the most common diseases in wheat crops. For effective control of such disease, leaf application of mixtures of triazole and strobilurin fungicides is recommended. The aim of this study was to evaluate the efficacy of different fungicide formulations and numbers of applications in controlling wheat leaf rust in the cultivar TBIO Pioneiro 2010. Experimental design was completely randomized, 2x2 factorial arrangement, consisting of two fungicide formulations ...
Tópico(s): Plant Disease Resistance and Genetics
2017 - Grupo Paulista de Fitopatologia | Summa Phytopathologica

Gelson Luísa Fambrini, Virgínio Henrique de Miranda Lopes Neumann, Cecília L. Barros, Sonia Agostinho, Paulo Cesar Galm, José Acioli Bezerra de Menezes Filho,
The Araripe Basin has been the subject of several publications in the recent years, notably with respect to the rich paleontological collection of Brejo Santo, Crato and Romualdo Formations. However, papers detailing stratigraphic aspects of Brejo Santo Formation are scarce. The formation (Mesozoic era - Dom João Stage) is represented by a predominantly pelithic succession (up to 450 m thick) outcropping in eastern portion of the basin. The Brejo Santo Formation unconformably overlies the Cariri Formation, ...
Tópico(s): Geography and Environmental Studies
2013 - UNIVERSIDADE DE SÃO PAULO | Geologia USP Série Científica

Wilson Teixeira, Mauro César Geraldes, Manoel S. D’Agrella-Filho, João Orestes Schneider Santos, Márcia A.S. Barros, Amarildo Salina Ruiz, Paulo César Corrêa da Costa,
The Figueira Branca Suite (FBS) comprises a layered mafic–ultramafic complex which together with mafic–felsic plugs makes up a string of NW-trending intrusive bodies that are emplaced into the Jauru domain (Rio Negro-Juruena province; 1.80–1.60 Ga). This domain comprises Orosirian calc-alkaline rocks and coeval metamorphic volcanic–sedimentary associations, intruded by voluminous granitoid plutons resulted from outboard Cachoeirinha (1587–1522 Ma) and Santa Helena (1485–1420 Ma) accretionary orogens ...
Tópico(s): Geochemistry and Elemental Analysis
2011 - Elsevier BV | Journal of South American Earth Sciences

Antônio Augusto Ornellas, Bernardo Lindenberg Braga Nóbrega, Eduardo Wei Kin Chin, Aristóteles Wisnescky, Paulo Cesar Barbosa da Silva, Aline Barros de Santos Schwindt,
... Braga Nóbrega, Eduardo Wei Kin Chin, Aristóteles Wisnescky, Paulo Cesar Barbosa da Silva, and Aline Barros de Santos Schwindt Antonio Augusto OrnellasAntonio Augusto Ornellas , ... Kin ChinEduardo Wei Kin Chin , Aristóteles WisnesckyAristóteles Wisnescky , Paulo Cesar Barbosa da SilvaPaulo Cesar Barbosa da Silva , and Aline Barros de Santos SchwindtAline Barros de Santos Schwindt View ... author Aristóteles Wisnescky More articles by this author Paulo Cesar Barbosa da Silva More articles by this author Aline Barros de Santos Schwindt More articles by this author ...
Tópico(s): Urologic and reproductive health conditions
2008 - Lippincott Williams & Wilkins | The Journal of Urology

Elisangela Martins de Lima, Patrícia Aquen Cid, Debora Souza Beck, Luiz Henrique Zanata Pinheiro, João Pedro Silva Tonhá, Marcio Z. O. Alves, Newton D. Lourenço, Roberto Queiroz dos Santos, Marise Dutra Asensi, José Aurélio Marques, Carolina Souza Bandeira, Caio Augusto Santos Rodrigues, Saint Clair Gomes, Marisa Zenaide Ribeiro Gomes, Glória Regina A. A. Magalhães, Priscila P. Silva, Scyla Maria S. A. S. Reis Di Chiara, Amanda Aparecida S. Machado, Thaisa Medeiros Tozo, Lucas Lameirão P. A. Rosas, Paulo Cesar Mendes Barros, Wania Vasconcelos de Freitas, Ana Paula D’Alincourt Carvalho-Assef,
Abstract Background Studies have investigated risk factors for infections by specific species of carbapenem-resistant Gram-negative bacilli (CR-GNB), but few considered the group of GNB species and most of them were performed in the setting of bacteremia or hospital infection. This study was implemented to identify risk factors for sepsis by CR- and carbapenem-susceptible (CS) GNB in intensive care unit (ICU) patients to improve management strategies for CR-GNB sepsis. Methods We developed a case-case- ...
Tópico(s): Antibiotic Use and Resistance
2020 - BioMed Central | Antimicrobial Resistance and Infection Control

Michele Bahia, Flávia de Nazaré Leite Barros, Paulo Cesar Magalhães‐Matos, Thamirys de Souza Gonçalves, Laerzio Chiesorin Neto, Diogo Cesar Lagroteria Oliveira Faria, Sandra Aparecida Romeiro, Frederico Ozanan Barros Monteiro, Gustavo Góes‐Cavalcante, Alessandra Scofield,
The aim of this study was to detect the infection by Trypanosoma cruzi in captive Neotropical primates in the Brazilian Amazon. From February 2013 to July 2014, 112 blood samples were collected from Neotropical primates from the Amazonas, Amapá, and Pará States, north of Brazil. The subjects belonged to the families Cebidae (N = 59), Atelidae (N = 41), Callitrichidae (N = 5), Pitheciidae (N = 4), and Aotidae (N = 3). Blood smears also were examined for the presence of trypomastigotes by optical microscopy. For ...
Tópico(s): Parasites and Host Interactions
2016 - Wiley | American Journal of Primatology

Carolina Lôbo De Almeida Barros JACINTHO, Paulo César Brandão Veiga Jardim, Ana Luíza Lima Sousa, Thiago Souza Veiga JARDIM, Weimar Kunz Sebba Barroso,
The difficulty in understanding food labels demands their reformulation. The objective was to elaborate a proposal of nutritional labeling and to compare its understanding with current labels. A cross-sectional study was conducted in 2016. Socioeconomic and health data were collected and questionnaires were used to evaluate reading and comprehension of the current label (Group A) and the proposed label (Group P). Student's t test and chi-square test (p <5%) were applied. A total of 980 consumers participated ...
Tópico(s): Nutritional Studies and Diet
2019 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Thaís Caroline Buttow Rigolon, Frederico Augusto Ribeiro de Barros, Érica Nascif Rufino Vieira, Paulo César Stringheta,
The food industry should have methods that allow identifying bioactive compounds quickly, efficiently and at low cost. The objective of this research was to obtain mathematical models for predicting the amount of total phenolics, anthocyanins and antioxidant capacity of blackberry, blueberry and jaboticaba skin, based on colorimetric parameters (L*, a*, b*, C* and h*). All analyses were done in the phenolic extracts obtained from these fruits. The mathematical models were obtained through multiple ...
Tópico(s): Botanical Research and Applications
2020 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Elisangela Gouveia Cata-Preta, Yasmim A. Serra, Eliseu da Cruz Moreira-Junior, Henrique Sousa Reis, Natali D. Kisaki, Matheus Libarino-Santos, Raiany R. R. Silva, Thaísa Barros-Santos, Lucas C. Santos, Paulo César Ribeiro Barbosa, José Luiz Costa, Alexandre J. Oliveira-Lima, Laís F. Berro, E.A.V. Marinho,
Ayahuasca is a hallucinogenic beverage produced from the decoction of Banisteriopsis caapi (Bc) and Psychotria viridis (Pv), β-carboline- and N,N-dimethyltryptamine(DMT)-containing plants, respectively. Accumulating evidence suggests that ayahuasca may have therapeutic effects on ethanol abuse. It is not known, however, whether its effects are dependent on the presence of DMT or if non-DMT-containing components would have therapeutic effects. The aim of the present study was to investigate the rewarding ...
Tópico(s): Cannabis and Cannabinoid Research
2018 - Frontiers Media | Frontiers in Pharmacology

Flávio Alexandre Lima Pinheiro, Carlos Fernando de Almeida Barros Mourão, Vitor Senna Diniz, Paulo César Silva, Luiz Meirelles, Emanuel Santos, Alberto Schanaider,
PURPOSE: To evaluate the early bone response to a nanotextured dental implant treated with sodium sulfate (Na2SO4), using a rabbit model. METHODS: Twelve animals were randomly divided into group 1 (Control) - machined implants and group 2 (Test) - nanotextured implants. Extra-oral incision was performed to provide access to intended surgical site where the dental implant was inserted immediately after the extraction of the mandibular first premolar. Implant surface characterization was performed by scanning ...
Tópico(s): Periodontal Regeneration and Treatments
2014 - Sociedade Brasileira Para o Desenvolvimento da Pesquisa em Cirurgia | Acta Cirúrgica Brasileira

João Antônio Tadeu Pigatto, Fernando César Abib, Gener Tadeu Pereira, Paulo Sérgio de Moraes Barros, Cesar Dias Freire, José Luiz Laus,
Objetivou-se examinar a superfície posterior do endotélio corneano e realizar análise morfométrica das células endoteliais da córnea de olhos normais de cães à microscopia especular. Procedeu-se à morfometria avaliando-se a área celular média e a densidade endotelial. Ambos os olhos de dez cães, sem raça definida, machos ou fêmeas, com 6 anos de idade, com peso médio de 15 kg, eutanasiados por razões não relacionadas a este estudo foram estudados. Os olhos foram avaliados para determinar as condições ...
Tópico(s): Corneal Surgery and Treatments
2006 - UNIVERSIDADE DE SÃO PAULO | Brazilian Journal of Veterinary Research and Animal Science

M. L. C. Barros, Paulo Cesar Colonna Rosman, J.C.F. Telles,
Tópico(s): Lattice Boltzmann Simulation Studies
2014 - Springer Science+Business Media | Journal of the Brazilian Society of Mechanical Sciences and Engineering

Letícia Rocha Ferreira, Edimar Aparecida Filomeno Fontes, Letícia Mafle Guimarães MARINHO, Frederico Augusto Ribeiro de Barros, Paulo César Stringheta, Afonso Mota Ramos,
The aim of our research was to elaborate, characterize and evaluate the stability under light/darkness and different temperatures (4 and 25 ºC) of the color of an isotonic beverage based on whey permeate with carotenoid extract powder from pequi, and verify its microbiological safety and sensory acceptance. The 3% (w/v) concentration of powdered carotenoid from pequi was chosen because it has osmolality (314.89 mOsmol/L) in the range of hydroelectrolytic beverages and light-yellow tint. The beverage ...
Tópico(s): Agricultural and Food Sciences
2021 - Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências | Research Society and Development

M. L. C. Barros, Paulo Cesar Colonna Rosman, J.C.F. Telles, José Paulo Soares de Azevedo,
This paper presents a simple and effective method to model wetting and drying processes in natural water bodies.The proposed method has been nicknamed "rough-porous layer", or RPL.It bears similarities with the so called marsh porosity method, but is simpler to implement, mass conserving and does not affect wave celerity in wet areas.The method can be easily implemented in finite element models, what makes it useful in numerical modeling of natural water bodies with intricate topographies.A standard ...
Tópico(s): Coastal wetland ecosystem dynamics
2011 - WIT Press | WIT transactions on ecology and the environment

Pedro P. Rebouças Filho, Paulo César Cortez, Antonio Barros, Victor Hugo C. de Albuquerque, João Manuel R. S. Tavares,
The World Health Organization estimates that 300 million people have asthma, 210 million people have Chronic Obstructive Pulmonary Disease (COPD), and, according to WHO, COPD will become the third major cause of death worldwide in 2030. Computational Vision systems are commonly used in pulmonology to address the task of image segmentation, which is essential for accurate medical diagnoses. Segmentation defines the regions of the lungs in CT images of the thorax that must be further analyzed by the ...
Tópico(s): Advanced Vision and Imaging
2016 - Elsevier BV | Medical Image Analysis

Pedro P. Rebouças Filho, Róger Moura Sarmento, Paulo César Cortez, Antonio Barros, Victor Hugo C. de Albuquerque,
Computing systems have been playing an important role in various medical fields, notably in image diagnosis.Highlighted among the existing exams that allow diagnostic aids and the application of computing systems in parallel is Computed Tomography (CT).This work focuses on the segmentation and reconstruction phases of CT lung images using the Adaptive Crisp Active Contour Model 2D (ACACM) and the OpenGL library to present and analyse the results in three dimensions.The results of the proposed method ...
Tópico(s): Advanced Neural Network Applications
2015 - | International Journal of Computer Applications

Pedro P. Rebouças Filho, Paulo César Cortez, Antonio Barros, Victor Hugo C. de Albuquerque,
Many studies have been conducted on digital image segmentation, seeking to overcome the limitations of different methods for specific applications. Thus, existing techniques are improved and new methods created. This paper proposes a new Active Contour Method (ACM) applied to the segmentation of objects in digital images. The proposed method is called Adaptive Balloon ACM and its main contribution is the new internal Adaptive Balloon energy that minimizes the energy of each point on the curve using ...
Tópico(s): Image Processing Techniques and Applications
2014 - Elsevier BV | Expert Systems with Applications

Taysa Renata Ribeiro Timóteo, Camila Gomes de Melo, Lucas José de Alencar Danda, Laysa Creusa Paes Barreto Barros Silva, Danilo Augusto Ferreira Fontes, Paulo César Dantas Silva, Cindy Siqueira Britto Aguilera, Lidiany da Paixão Siqueira, Larissa Araújo Rolim, Pedró José Rolim Neto,
Layered double hydroxide (LDH) are promising drug delivery systems (DDS) for the transport of biologically active substances, with special attention to those with poor aqueous solubility. Praziquantel (PZQ) is an anthelmintic BCS class II drug, presenting low solubility and high permeability. Due to these qualities, its absorption becomes compromised, generating the need for relatively high doses. In this context, the synthesis and characterization of calcium and aluminum LDH (CaAl-LDH) was performed, ...
Tópico(s): Mesoporous Materials and Catalysis
2019 - Elsevier BV | Applied Clay Science

Nathália de Carvalho Ramos, Tiago Moreira Bastos Campos, Igor Siqueira de La Paz, João Paulo Barros Machado, Marco Antônıo Bottıno, Paulo Francısco Cesar, Renata Marques de Melo,
The aim of this study was to characterize the microstructure of four dental CAD-CAM ceramics and evaluate their susceptibility to stress corrosion.SEM and EDS were performed for microstructural characterization. For evaluation of the pattern of crystallization of the ceramics and the molecular composition, XRD and FTIR, respectively, were used. Elastic modulus, Poisson's ratio, density and fracture toughness were also measured. The specimens were subjected to biaxial flexure under five stress rates ( ...
Tópico(s): Endodontics and Root Canal Treatments
2016 - Elsevier BV | Dental Materials

Maria Auxiliadora de Barros Martins, Lucas Ramon Roque da Silva, Maria Ranieri, Regina Mambeli Barros, Valquíria Claret dos Santos, Paulo César Gonçalves, Márcia Regina Baldissera, Rosa Cristina Cecche Lintz, Luísa Andréia Gachet Barbosa, Carlos Barreira Martinez, Mírian de Lourdes Noronha Motta Melo,
The reuse of waste in civil construction brings environmental and economic benefits. However, for these to be used in concrete, it is necessary a previous evaluation of their physical and chemical characteristics. Thus, this study aimed to characterize and analyze the waste foundry exhaust sand (WFES) for use in self-compacting concrete (SCC). Foundry exhaust sand originates from the manufacturing process of sand molds and during demolding of metal parts. It is a fine sand rich in silica in the form ...
Tópico(s): Material Selection and Properties
2021 - Multidisciplinary Digital Publishing Institute | Materials

Patrícia Maria de Moraes Barros Fucs, Celso Svartman, Rodrigo Montezuma César de Assumpção, Paulo F. Kertzman,
The purpose of this study was to evaluate 14 painful dislocated hips in patients with spastic cerebral palsy, treated with hip arthrodesis and internal fixation. The mean age at the surgical procedure was 15 years and 5 months. The mean follow-up period was 5 years and 3 months. All patients showed bone union, pain relief, and postural improvement. Hip arthrodesis is a reasonable option in treating painful spastic subluxated and dislocated hips in patients with cerebral palsy, especially if it is ...
Tópico(s): Botulinum Toxin and Related Neurological Disorders
2003 - Lippincott Williams & Wilkins | Journal of Pediatric Orthopaedics