
Yago Soares Chaves, Pedro Henrique Poubel Mendonça da Silveira, Lucas de Mendonça Neuba, Raí Felipe Pereira Junio, Matheus Pereira Ribeiro, Sérgio Neves Monteiro, Lúcio Fábio Cassiano Nascimento,
The properties of babassu (Attalea speciosa.) fiber was for the first time investigated for potential engineering application such as reinforcement for matrix composites. The diameter distribution of babassu fibers was analyzed and found to be associated with significant variation in fiber density and mechanical properties. Additionally, thermogravimetric and Fourier transform infrared spectrometry (FTIR) analyses were performed. The studied Weibull statistical method was used to analyze the acquired ...
Tópico(s): Bamboo properties and applications
2023 - Elsevier BV | Journal of Materials Research and Technology

Lucas de Mendonça Neuba, Raí Pereira Junio, Matheus Pereira Ribeiro, Andressa Teixeira Souza, Eduardo de Sousa Lima, Fábio da Costa Garcia Filho, André Ben‐Hur da Silva Figueiredo, Fábio de Oliveira Braga, Afonso Rangel Garcez de Azevedo, Sérgio Neves Monteiro,
Composites reinforced with natural lignocellulosic fibers (NLFs) are gaining relevance as the worldwide demand for renewable and sustainable materials increases. To develop novel natural composites with satisfactory properties, less common NLFs should also be investigated. Among these, the Cyperus malaccensis (CM), a type of sedge fiber, is already used in simple items like ropes, furniture, and paper, but has not yet been investigated as composite reinforcement for possible engineering applications. ...
Tópico(s): Bamboo properties and applications
2020 - Multidisciplinary Digital Publishing Institute | Polymers

Liliane Pereira da Silva, Matheus Pereira de Souza Duarte, Caroline de Cássia Batista de Souza, Carla Cabral dos Santos Accioly Lins, Maria das Graças Wanderley de Sales Coriolano, Otávio Gomes Lins,
RESUMO O objetivo deste estudo piloto, realizado em um hospital universitário de referência em Pernambuco, foi avaliar os efeitos da prática mental associada à fisioterapia motora sobre a marcha e o risco de queda em pessoas com doença de Parkinson. A amostra da pesquisa foi composta por 18 sujeitos, de ambos os sexos, com doença de Parkinson idiopática, divididos em grupo experimental (8 indivíduos) e controle (10 indivíduos). Ambos os grupos realizaram 15 sessões de 40 minutos de fisioterapia motora, ...
Tópico(s): Cerebral Palsy and Movement Disorders
2019 - UNIVERSIDADE DE SÃO PAULO | Fisioterapia e Pesquisa

Vanessa da Costa Sousa, Mayara Calixto da Silva, Matheus Pereira de Mello, João Antônio Matheus Guimarães, Jamila Alessandra Perini,
During the pandemic of COVID-19, phylogenetic changes have been observed in the characteristics of the virus, in the diagnosis and treatment of the disease. The clinical course and the severe form of the disease depends on several factors. This study characterized the beginning setting for patient care of COVID-19 in a referral center in one of the main capital cities of Brazil. In addition, were evaluated the factors associated with mortality, length of stay, and diagnostic outcome.A cross-sectional ...
Tópico(s): COVID-19 and healthcare impacts
2022 - Elsevier BV | Journal of Infection and Public Health

Renata Stolf-Moreira, Eliana Gertrudes de Macedo Lemos, Lúcia Maria Carareto Alves, Jackson Marcondes, Selma S. Pereira, Amanda Alves Paiva Rolla, Rodrigo Matheus Pereira, N. Neumaier, Eliseu Binneck, R. V. Abdelnoor, M. C. N. de Oliveira, Francismar Corrêa Marcelino‐Guimarães, J. R. B. Farias, Alexandre Lima Nepomuceno,
To identify differentially expressed genes in soybean grown under different drought conditions, cDNA libraries from roots of different genotypes were constructed. Genes of contrasting genotypes of soybean were found to be differentially expressed in plants exposed to drought conditions. A total of 753 no redundant clones were identified by PCR, and these were printed on microarray glass slides. Probes of total RNA were prepared from bulked roots subjected to 25 and 50 min (Bulk 1) or 75 and 100 min ( ...
Tópico(s): Photosynthetic Processes and Mechanisms
2010 - Springer Science+Business Media | Plant Molecular Biology Reporter
J.M. Pereira de Moura, Eduarda Mayne Gonçalves Sanches, Roseli Aparecida Matheus Pereira, Isabela Shumaher Frutuoso, Alexandre Lins Werneck, Lígia Márcia Contrin,
Introdução: Sepse é definida como uma disfunção orgânica potencialmente fatal causada por uma resposta do hospedeiro desregulada à infecção. Os pacientes com sepse (anteriormente chamada de sepse grave) ainda devem ser identificados pelos mesmos critérios de disfunção orgânica (incluindo o nível de lactato superior a 2 mmol/L). A disfunção orgânica também pode ser identificada no futuro, usando a avaliação rápida de insuficiência de órgãos baseada em sepse (qSOFA). Atualmente, a sepse é uma das principais ...
Tópico(s): Maternal and Neonatal Healthcare
2017 - FACULDADE DE MEDICINA DE SÃO JOSÉ DO RIO PRETO | Arquivos de Ciências da Saúde

Patrícia Bernardes, Petr Ekel, Sérgio Fernando Loureiro Rezende, Joel Gomes Pereira Júnior, Angélica Cidália Gouveia dos Santos, Maurício Andrade Rodrigues da Costa, Rafael Lopes Carvalhais, Matheus Pereira Libório,
Tópico(s): Economic Theory and Policy
2021 - Springer Science+Business Media | Quality & Quantity

Pedro Henrique Poubel Mendonça da Silveira, Matheus Pereira Ribeiro, Thuane Teixeira da Silva, Andreza Menezes Lima, Maurício Ferrapontoff Lemos, Anthony Garotinho Barros Assed Matheus de Oliveira, Lúcio Fábio Cassiano Nascimento, Alaelson Vieira Gomes, Sérgio Neves Monteiro,
The constant concern about environmental issues has led to the growth of researches about eco-friendly materials. Among them, the natural lignocellulosic fibers have already presented their potential in place of petroleum-based synthetics. However, a relevant number of studies still have to deal with their disadvantages, such as the weak bond on the matrices for a composite performance and limited thermal performance. Thus, the present study analyzes a combination of alkaline treatment and graphene ...
Tópico(s): biodegradable polymer synthesis and properties
2022 - Taylor & Francis | Journal of Natural Fibers

Geraldo Candido Cabral Gouveia, Fernando Shintate Galindo, Maria Gabriela Dantas Bereta Lanza, Anne Caroline da Rocha Silva, Matheus Pereira de Brito Mateus, Marcio Souza da Silva, Renan Francisco Rimoldi Tavanti, Tauan Rimoldi Tavanti, José Lavres, André Rodrigues dos Reis,
Selenium (Se) at low concentration is considered benefit element to plants. The range between optimal and toxic concentration of Se is narrow and varies among plant species. This study aimed to evaluate the phenotypic, physiological and biochemical responses of four rice genotypes (BRS Esmeralda, BRSMG Relâmpago, BRS Bonança and Bico Ganga) grown hydroponically treated with sodium selenate (1.5 mM L−1). Selenium treated plants showed a dramatically decrease of soluble proteins, chlorophylls, and carotenoids ...
Tópico(s): Heavy Metals in Plants
2020 - Elsevier BV | Ecotoxicology and Environmental Safety

Matheus Pereira Libório, Oséias da Silva Martinuci, Alexei Manso Corrêa Machado, Thiago Melo Machado-Coelho, Sandro Laudares, Patrícia Bernardes,
Tópico(s): Urban, Neighborhood, and Segregation Studies
2020 - Springer Science+Business Media | GeoJournal

Matheus Pereira Libório, Oséias da Silva Martinuci, Sandro Laudares, Renata de Mello Lyrio, Alexei Manso Corrêa Machado, Patrícia Bernardes, Petr Ekel,
Composite indicators are almost always determined by methods that aggregate a reasonable number of manifest variables that can be weighted—or not—as new synthesis variables. A problem arises when these aggregations and weightings do not capture the possible effects that the various underlying dimensions of the phenomenon have on each other, and consequently distort the assessment of intra-urban inequality. In this paper, we explore the direct and indirect effects that the different underlying dimensions ...
Tópico(s): Spatial and Panel Data Analysis
2020 - Multidisciplinary Digital Publishing Institute | Sustainability

Amanda Mara Teles, João Victor Silva‐Silva, Juan Matheus Pereira Fernandes, Kátia da Silva Calabrese, Ana Lúcia Abreu‐Silva, Silvio Carvalho Marinho, Adenilde Nascimento Mouchrek, Victor Elias Mouchrek Filho, Fernando Almeida-Souza,
Aniba rosaeodora is one of the most widely used plants in the perfumery industry, being used as medicinal plant in the Brazilian Amazon. This work aimed to evaluate the chemical composition of A. rosaeodora essential oil and its biological activities. A. rosaeodora essential oil presented linalool (93.60%) as its major compound. The A. rosaeodora essential oil and linalool showed activity against all the bacteria strains tested, standard strains and marine environment bacteria, with the lower minimum ...
Tópico(s): Phytochemistry and Bioactivity Studies
2020 - Multidisciplinary Digital Publishing Institute | Antibiotics

Nivaldo Ferreira do Nascimento, Paulo Sérgio Monzani, Matheus Pereira dos Santos, Daiane Niedzielski, José Augusto Senhorini, Luciano Andrade Silva, Laura Satiko Okada Nakaghi, George Shigueki Yasui,
Gynogenesis is a chromosome manipulation technique applicable on the production of all-female populations, generation of inbred or clonal lines and identification of genetic sex determination mechanisms in fish. Therefore, the aim of this study was induce meiotic gynogenesis in Astyanax altiparanae and determine the genetic basis of sex determination. Firstly, we evaluated the best UV-irradiation dosage in order to inactivate sperm genome, preserving the capacity of egg activation without the genetic ...
Tópico(s): Animal Genetics and Reproduction
2019 - Elsevier BV | Aquaculture

A. Saraiva, Matheus Pereira Barros, Alexandre Tolstenko Nogueira, N. M. Fonseca Ferreira, António Valente,
This study presents a technique that uses an interactive virtual environment for the rehabilitation treatment of patients with mechanical strabismus and/or amblyopia who have lost eye movement. The relevant part of this treatment is the act of forcing the two eyes to cooperate with each other by increasing the level of adaptation of the brain and allowing the weak eye to see again. Accordingly, the game enables both eyes to work together, providing the patient with better visual comfort and life ...
Tópico(s): Spatial Neglect and Hemispheric Dysfunction
2018 - Multidisciplinary Digital Publishing Institute | Information

Dilberto Ribeiro Arashiro, George Shigueki Yasui, Leonardo Luiz Calado, Nivaldo Ferreira do Nascimento, Matheus Pereira dos Santos, Silvio Carlos Alves do Santos, Nycolas Levy-Pereira, Paulo Sérgio Monzani, Diógenes Henrique de Siqueira‐Silva, José Augusto Senhorini,
SummaryThe aim of this study was to describe the effect of temperature on the fertilization, early developmental stages, and survival rate of two Neotropical catfishes Pimelodus maculatus and Pseudopimelodus mangurus. After fertilization, the eggs were incubated at 22°C, 26°C, and 30°C, which resulted in fertilization rates of 96.95 ± 1.79%, 98.74 ± 0.76%, and 98.44 ± 0.19% for P. maculatus and 96.10 ± 1.58%, 98.00 ± 0.63%, and 94.60 ± 2.09% for P. mangurus, respectively. For P. maculatus, hatching occurred ...
Tópico(s): Fish Ecology and Management Studies
2018 - Cambridge University Press | Zygote

Bruno Bastos Gonçalves, Nivaldo Ferreira do Nascimento, Matheus Pereira dos Santos, Rafaela Manchin Bertolini, G. S. Yasui, Percília Cardoso Giaquinto,
Environmental relevant concentrations of glyphosate-based herbicide as 50 µg l-1 , 300 µg l-1 and 1800 µg l-1 can affect sperm quality of yellowtail tetra fish Astyanax lacustris. Viability of sperm cells was impaired at 300 µg l-1 , a concentration that is within legal limits in U.S.A. waterbodies, while motility was impaired at 50 µg l-1 , which is the more stringent limit set in Brazilian law. Therefore, environment protection agencies must review regulations of glyphosate-based herbicides on water ...
Tópico(s): Reproductive biology and impacts on aquatic species
2018 - Wiley | Journal of Fish Biology

Janina Zanoni Camargo, Valkirea Matos Nascimento, Isadora Stefanello, Cinthia Aparecida de Andrade Silva, Fabiano Avelino Gonçalves, Igor Chiarelli Perdomo, Danielle Marques Vilela, Simone Simionatto, Rodrigo Matheus Pereira, Marcelo Fossa da Paz, Rodrigo Simões Ribeiro Leite, Jane Mary Lafayette Neves Gelinski, Gustavo Graciano Fonseca,
The aim of this work was to isolate and investigate different yeast strains obtained in the Brazilian Midwest Region. The alcohol fermenting industrial yeast Saccharomyces cerevisiae CAT-1 and another 3 strains previously isolated from a sugar and alcohol mill were also investigated. In this sense, 45 strains were isolated from fruits and chicken litter. They were evaluated through biochemical and molecular analyzes. Then, it was proceded the enzymatic evaluation and the molecular identification ...
Tópico(s): Biofuel production and bioconversion
2018 - Elsevier BV | Biocatalysis and Agricultural Biotechnology

Ivandro Klein, Marcelo Tomio Matsuoka, Matheus Pereira Guzatto, Felipe Geremia‐Nievinski, Maurício Roberto Veronez, Vinícius Francisco Rofatto,
Tópico(s): Scientific Measurement and Uncertainty Evaluation
2018 - Springer Science+Business Media | Journal of Geodesy

Rafaela Manchin Bertolini, José Augusto Senhorini, Nivaldo Ferreira do Nascimento, Matheus Pereira dos Santos, Laura Satiko Okada Nakaghi, Wellington Adriano Moreira Peres, Regiane Cristina da Silva, George Shigueki Yasui,
In this study, the aim was to establish a protocol for first feeding of diploid and triploid yellowtail tetra Astyanax altiparanae in laboratory conditions. The fry were fed with five different diets: (i) Artemia franciscana nauplii, (ii) plankton, (iii) dry food, (iv) Artemia franciscana nauplii + plankton, and (v) Artemia nauplii + plankton + dry food. Additionally, the growth and survival rates of diploid and triploid individuals were also evaluated. On day 10, the length of the fish between the treatments ...
Tópico(s): Fish Ecology and Management Studies
2017 - Wiley | Aquaculture Research

Nivaldo Ferreira do Nascimento, Diógenes Henrique de Siqueira‐Silva, Matheus Pereira dos Santos, Takafumi Fujimoto, José Augusto Senhorini, Laura Satiko Okada Nakaghi, George Shigueki Yasui,
Summary This study aimed to examine the gonadal morphology of diploid and triploid fish through stereological analysis. Triploid individuals were obtained after temperature shock (40°C for 2 min) at 2 min post-fertilization and reared until 175 days post-fertilization (dpf). Intact eggs were used to obtain the diploids. Gonads were collected for histological analysis at 83, 114, 144 and 175 dpf. Diploid females and males presented normal oogenesis and spermatogenesis through all the experimental period. ...
Tópico(s): Sperm and Testicular Function
2017 - Cambridge University Press | Zygote

Leonardo Rippel Salgado, Rodolpho Lima, Bruno Ferreira dos Santos, Karina Tamie Shirakawa, Mariane de Mendonça Vilela, Nalvo F. Almeida, Rodrigo Matheus Pereira, Alexandre Lima Nepomuceno, Lucimara Chiari,
Acidic soils occupy a vast area in the world, and the aluminum (Al) in these soils can directly interact with plant cells and tissues to inhibit their growth and reduce yields. The signalgrass Urochloa decumbens cv. Basilisk (syn. Brachiaria decumbens cv. Basilisk), a widely sown tropical forage grass, is recognized for its high productivity under intensive use, vigorous growth, ease of establishment, and good forage value throughout the year, as well as its exceptional adaptation to infertile acid ...
Tópico(s): Plant Stress Responses and Tolerance
2017 - Springer Science+Business Media | Plant Growth Regulation
Amandda de Souza, Cristiano Gomes Sanchotene, Cristiano Moreira da Silva Lopes, Jader Alfredo Beck, Affonso Celso Kulevicz da Silva, Suzana Matheus Pereira, Caroline Ruschel,
Self-myofascial release (SMR) is an intervention popularly used by rehabilitation, fitness, and sports professionals to improve recovery and performance. In SMR, the athlete/patient applies pressure to the muscle and fascia using various tools, such as balls, rods, foam rolls, and massagers.This study aimed to evaluate the acute effect of 2 SMR protocols (short term and long term) of the posterior thigh and calf muscles on hip and ankle range of motion (ROM) in physically active men.A total of 14 adult ...
Tópico(s): Myofascial pain diagnosis and treatment
2017 - Human Kinetics | Journal of Sport Rehabilitation

Nivaldo Ferreira do Nascimento, Matheus Pereira dos Santos, Lucas Henrique Piva, Breno Manzini, Takafumi Fujimoto, José Augusto Senhorini, George Shigueki Yasui, Laura Satiko Okada Nakaghi,
The aim of this study was to evaluate the growth, carcass yield, fatty acid composition, and reproductive parameters of diploid and triploid Astyanax altiparanae. Triploidization was induced by heat shock (40 °C for 2 min) 2 min after fertilization. Fish were reared for 175 days from fertilization. Triploid females showed lower proportion of saturated and poly-unsaturated fatty acids and higher amount of mono-unsaturated fatty acids than diploids. They were sterile, with immature gonads, and showed ...
Tópico(s): Fish Ecology and Management Studies
2017 - Elsevier BV | Aquaculture

Carlos Roberto Alves, Raquel Santos de Souza, Karen dos Santos Charret, Luzia Monteiro de Castro Côrtes, Matheus Pereira de Sá-Silva, Laura Barral-Veloso, Luiz Filipe Gonçalves de Oliveira, Franklin Souza‐Silva,
Serine proteases have significant functions over a broad range of relevant biological processes to the Leishmania spp lifecycle. Data gathered here present an update on the Leishmania spp serine proteases and the status of these enzymes as part of the parasite degradome. The serine protease genes (n = 26 to 28) in Leishmania spp, which encode proteins with a wide range of molecular masses (35 kDa–115 kDa), are described along with their degrees of chromosomal and allelic synteny. Amid 17 putative Leishmania ...
Tópico(s): Insect Resistance and Genetics
2017 - Elsevier BV | Experimental Parasitology

Pedro Henrique Poubel Mendonça da Silveira, Mônica Cristina Celestino dos Santos, Yago Soares Chaves, Matheus Pereira Ribeiro, Belayne Zanini Marchi, Sérgio Neves Monteiro, Alaelson Vieira Gomes, Neyda de la Caridad Om Tapanes, Patrícia Soares da Costa Pereira, Daniele Cruz Bastos,
This article presents a comprehensive study on the physical, mechanical, thermal, and chemical properties of polypropylene (PP) composites reinforced with hemp fibers (HF) and compatibilized with maleic anhydride (MAPP). The composites were processed using a twin-screw extruder, followed by hot compression at 190 °C. Subsequently, the composites were analyzed using Izod impact and Shore D hardness tests to evaluate their mechanical properties. Thermal properties were investigated through differential ...
Tópico(s): biodegradable polymer synthesis and properties
2023 - Multidisciplinary Digital Publishing Institute | Polymers

Lucas Galhardo Pimenta Tienne, Ludmila da Silva Candido, Bárbara de Salles Macena da Cruz, Fernanda Fabbri Gondim, Matheus Pereira Ribeiro, Renata Antoun Simão, Maria de Fátima Vieira Marques, Sérgio Neves Monteiro,
A new technique based on the modified Hummer's method to synthesize reduced graphene oxide (rGO) with high purity, as well as enhanced quality and low layer stacking is presented. It aims to demystify traditional considerations made from X-ray diffraction by introducing comprehensive models to determine the number of stacked layers, as well as understand and respect the limit of the physical phenomenon involved in the technique. Poly (vinylidene fluoride) (PVDF) nanocomposites incorporated with up ...
Tópico(s): Graphene research and applications
2022 - Elsevier BV | Journal of Materials Research and Technology

Thuane Teixeira da Silva, Pedro Henrique Poubel Mendonça da Silveira, André Ben‐Hur da Silva Figueiredo, Sérgio Neves Monteiro, Matheus Pereira Ribeiro, Lucas de Mendonça Neuba, Noan Tonini Simonassi, Fábio da Costa Garcia Filho, Lúcio Fábio Cassiano Nascimento,
Several industry sectors have sought to develop materials that combine lightness, strength and cost-effectiveness. Natural lignocellulosic natural fibers have demonstrated to be efficient in replacing synthetic fibers, owing to several advantages such as costs 50% lower than that of synthetic fibers and promising mechanical specific properties. Polymeric matrix composites that use kenaf fibers as reinforcement have shown strength increases of over 600%. This work aims to evaluate the performance ...
Tópico(s): Bamboo properties and applications
2022 - Multidisciplinary Digital Publishing Institute | Polymers

Matheus Pereira Ribeiro, Pedro Henrique Poubel Mendonça da Silveira, Fábio de Oliveira Braga, Sérgio Neves Monteiro,
As destructive power of firearms raises over the years, ballistic armors are in continuous need of enhancement. For soft armors, this improvement is invariably related to the increase of stacked layers of high-strength fiber fabrics, which potentially restrains wearer mobility. A different solution was created in the early 2000s, when a research work proposed a new treatment of the ballistic panels with non-Newtonian colloidal shear thickening fluid (STF), in view of weight decreasing with strength ...
Tópico(s): Tribology and Wear Analysis
2022 - Multidisciplinary Digital Publishing Institute | Polymers

Thuane Teixeira da Silva, Pedro Henrique Poubel Mendonça da Silveira, Matheus Pereira Ribeiro, Maurício Ferrapontoff Lemos, Ana da Silva, Sérgio Neves Monteiro, Lúcio Fábio Cassiano Nascimento,
Kenaf (Hibiscus cannabinus L.) is one of the most investigated and industrially applied natural fibers for polymer composite reinforcement. However, relatively limited information is available regarding its epoxy composites. In this work, both thermal and chemical properties were, for the first time, determined in kenaf fiber reinforced epoxy matrix composites. Through XRD analysis, a microfibrillar angle of 7.1° and crystallinity index of 44.3% was obtained. The FTIR analysis showed the functional ...
Tópico(s): Mechanical Engineering and Vibrations Research
2021 - Multidisciplinary Digital Publishing Institute | Polymers

Vinícius Alves Santos, Matheus Pereira Barreira, Karen Ruggeri Saad,
The consolidation of technology as an alternative strategy to cadaveric dissection for teaching anatomy in medical courses was accelerated by the recent Covid-19 pandemic, which caused the need for social distance policies and the closure of laboratories and classrooms. Consequently, new technologies were created, and those already been developed started to be better explored. However, information about many of these instruments and resources is not available to anatomy teachers. This systematic ...
Tópico(s): Surgical Simulation and Training
2021 - Wiley | Anatomical Sciences Education