Limpar
418 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Revisão Brasil Produção Nacional Revisado por pares

Tiago Rodrigues e Silva, Luiz Carlos Francelino Silva, Aline Cavalcanti de Queiroz, Magna Suzana Alexandre‐Moreira, Carlos Alberto de Carvalho Fraga, Graciéle Cunha Alves de Menezes, Luiz Henrique Rosa, Juliano Lemos Bicas, Valéria Maia de Oliveira, Alysson Wagner Fernandes Duarte,

Pigments from microorganisms have triggered great interest in the market, mostly by their "natural" appeal, their favorable production conditions, in addition to the potential new chemical structures or naturally overproducing strains. They have been used in: food, feed, dairy, textile, pharmaceutical, and cosmetic industries. The high rate of pigment production in microorganisms recovered from Antarctica in response to selective pressures such as: high UV radiation, low temperatures, and freezing ...

Tópico(s): Biocrusts and Microbial Ecology

2021 - Taylor & Francis | Critical Reviews in Biotechnology

Artigo Brasil Produção Nacional Revisado por pares

Sabryna Couto Araújo, Marla Rosa Marques Ferreira Ramos, Eliézer Luz do Espírito Santo, Luiz Henrique Sales de Menezes, Marise Silva de Carvalho, Iasnaia Maria de Carvalho Tavares, Marcelo Franco, Julieta Rangel de Oliveira,

Lipases (triacylglycerol hydrolases, EC 3.1.1.3) are a class of enzymes with high industrial importance. An option for the production of this enzyme is through fungal growth via solid-state fermentation (SSF). Thus, this research presents a study of lipase production by Penicillium roqueforti ATCC 10110 through SSF using cocoa bran residues (Theobroma cacao) as a substrate. To achieve maximum lipase production, fermentation time (0 to 120 h) and palm oil (PO) percentage (0 to 50%) were optimized through ...

Tópico(s): Biofuel production and bioconversion

2021 - Taylor & Francis | Preparative Biochemistry & Biotechnology

Artigo Brasil Produção Nacional Revisado por pares

Luiz Henrique Sales de Menezes, Lucas Lima Carneiro, Iasnaia Maria de Carvalho Tavares, Pedro Henrique Santos, Thiago Pereira das Chagas, Adriano A. Méndes, Erik Galvão Paranhos da Silva, Marcelo Franco, Julieta Rangel de Oliveira,

In the present work, an artificial neural network hybridized with a genetic algorithm (ANN-GA) has been applied to optimize Penicillium roqueforti ATCC 10110 lipase production in solid-state fermentation (SSF). For such a purpose, a feed-forward ANN with polynomial configuration 3-49-1 (i.e. 3 neurons in the input layer, 49 neurons in the hidden layer and 1 neuron in the output layer) was used to computationally model the experiment and a GA was used to optimize lipase production through the ANN model. ...

Tópico(s): Microbial Metabolism and Applications

2020 - Elsevier BV | Biocatalysis and Agricultural Biotechnology

Artigo Brasil Produção Nacional Revisado por pares

Luana Santos Moreira, Bruna Cirineu Chagas, Clissiane Soares Viana Pacheco, Herick Macedo Santos, Luiz Henrique Sales de Menezes, Madson Moreira Nascimento, Milana Aboboreira Simões Batista, Raildo Mota de Jesus, Fábio Alan Carqueija Amorim, Luana Novaes Santos, Erik Galvão Paranhos da Silva,

A procedure using ICP OES for sample preparation for the determination of copper, iron and manganese in cashew nuts was developed. Constrained simplex-centroid design was applied in the optimization of the digestion in microwave oven procedure, and the results evaluated from topological maps of the Kohonen network. The best proportion evaluated for the digestion of the sample with HNO3, H2O2 and H2O was 10:45:45 (%). With optimized conditions, the detection limits were 0.63, 4.3 and 0.37 mg kg−1, and ...

Tópico(s): Advanced Chemical Sensor Technologies

2018 - Elsevier BV | Food Chemistry

Artigo Brasil Produção Nacional Revisado por pares

Luiz Henrique Sales de Menezes, Marla Rosa Marques Ferreira Ramos, Sabryna Couto Araújo, Eliézer Luz do Espírito Santo, Polyany Cabral Oliveira, Iasnaia Maria de Carvalho Tavares, Pedro Henrique Santos, Marcelo Franco, Julieta Rangel de Oliveira,

Solid state fermentation (SSF) simulates the natural conditions fungal growth, where the amount of water in the reaction medium must be restricted, thus limiting the use of liquid substrate. An analytical strategy to deal with this limitation is the design of blending with constraints. Thus, the objective of the work was to optimize two constrained waste mixtures for the production of lipase by Penicillium roqueforti ATCC 10110 under SSF, using different substrates that combine solid and liquid waste. ...

Tópico(s): Biofuel production and bioconversion

2021 - Taylor & Francis | Preparative Biochemistry & Biotechnology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Luiz Henrique Sales de Menezes, Eliézer Luz do Espírito Santo, Marta Maria Oliveira dos Santos, Iasnaia Maria de Carvalho Tavares, Adriano A. Méndes, Marcelo Franco, Julieta Rangel de Oliveira,

To immobilize Candida rugosa lipase in Accurel MP 1000 (CRL-AMP) by physical adsorption in organic medium and apply in the synthesis of wax esters dodecanoyl octadecanoate 1 and hexadecanoyl octadecanoate 2 in a heptane medium, as well as evaluating the stability and recyclability of CRL-AMP in six reaction cycles.The specific activity (Asp) for CRL-AMP was 200 ± 20 U mg-1. Its catalytic activity was 1300 ± 100 U g-1. CRL-AMP was used in the synthesis of esters in heptane medium with a 1:1 acid:alcohol ...

Tópico(s): Microbial Metabolic Engineering and Bioproduction

2021 - Springer Science+Business Media | Biotechnology Letters

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Raiza Aranha Nascimento, Virgínia Capistrano Fajardo, Luiz Antônio Alves de Menezes-Júnior, Pedro Henrique Marques Mendonça, Maria Cristina Veiga Aranha Nascimento, Pedro Marques Oliveira Tristão, Fernando Luiz Pereira de Oliveira, Raimundo Marques Nascimento,

This study aims to describe the health characteristics of rotating shift mining workers that may be related to a worse course scenario for COVID-19, according to literature data.Is a cross-sectional from three studies with 1478 shift workers. Social, demographic, clinical, and biochemical variables were analyzed. Risk factors for COVID-19 analyzed: hyperglycemia, altered blood pressure, dyslipidemia, hypovitaminosis D, obesity, presence of pre-existing cardiovascular diseases, and smokers.Evaluating ...

Tópico(s): Advanced Glycation End Products research

2022 - Brazilian Association of Sleep and Latin American Federation of Sleep Societies | Sleep Science

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Thaísa Pinheiro Silva, Mariana Mendonça Hughes, Liciane dos Santos Menezes, MARIA DE FÁTIMA BATISTA DE MELO, Paulo Henrique Luiz de Freitas, Wilton Mitsunari Takeshita,

To assess the reliability of CEFBOT, an artificial intelligence (AI)-based cephalometry software, for cephalometric landmark annotation and linear and angular measurements according to Arnett's analysis.Thirty lateral cephalometric radiographs acquired with a Carestream CS 9000 3D unit (Carestream Health Inc., Rochester/NY) were used in this study. The 66 landmarks and the 10 selected linear and angular measurements of Arnett's analysis were identified on each radiograph by a trained human examiner ( ...

Tópico(s): Forensic Anthropology and Bioarchaeology Studies

2021 - Oxford University Press | Dentomaxillofacial Radiology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Thiago Mafra Batista, Heron Oliveira Hilário, Gabriel Antônio Mendes de Brito, Rennan Garcias Moreira, Carolina Furtado, Graciéle Cunha Alves de Menezes, Carlos A. Rosa, Luiz Henrique Rosa, Glória Regina Franco,

The snow-covered surfaces of Antarctica comprise an extreme environment that favors the development of life forms with adaptations to adverse low-temperature habitats. The ability to survive and such temperatures might involve the production of antifreeze proteins and ice-binding proteins that attenuate the effects of intense cold temperatures. He, we sequenced and reconstructed the nuclear and mitochondrial genomes of the endemic Antarctic fungus Antarctomyces pellizariae UFMGCB 12416. We then ...

Tópico(s): Microbial Community Ecology and Physiology

2020 - Elsevier BV | Genomics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Edmundo Guilherme de Almeida Gomes, Mário Jorge Júca, Hunaldo Lima de Menezes, Benício Luiz Bulhões Barros Paula Nunes, Henrique Costa, Flávio de Oliveira Lima, Délcio Matos,

PURPOSE: To analyze the expression of metalloproteinase-1, metalloproteinase-7 and vascular endothelial growth factor (VEGF) in colorectal adenocarcinoma, and to correlate these with the clinical-pathological prognostic factors. METHODS: Tumor tissue from 82 patients was fixed in formalin and embedded in paraffin blocks. These samples were analyzed by means of the streptavidin-biotin immunohistochemical method, using the tissue microarray technique. Marker positivity was evaluated using categorical ...

Tópico(s): Cancer, Lipids, and Metabolism

2009 - Sociedade Brasileira Para o Desenvolvimento da Pesquisa em Cirurgia | Acta Cirúrgica Brasileira

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Angélica da Conceição Oliveira Coel Fabri, Ana Paula Mendes Carvalho, Sérgio Araújo, Luíz Ricardo Goulart, Ana Márcia Menezes de Mattos, Henrique Couto Teixeira, Isabela Maria Bernardes Goulart, Malcolm S. Duthie, Rodrigo Corrêa‐Oliveira, Francisco Carlos Félix Lana,

Serological tests can be important tools to assist in the diagnosis of leprosy and can contribute to an earlier diagnosis. The aim of this study was to evaluate the antibody responses against phenolic glycolipid-1 (PGL-1), natural disaccharide linked to human serum albumin via an octyl (NDO-HSA), Leprosy IDRI Diagnostic-1 (LID-1) and natural disaccharide octyl - Leprosy IDRI Diagnostic-1 (NDO-LID) in leprosy patients, household contacts of patients and the general population. Enzyme-linked immunosorbent ...

Tópico(s): Mycobacterium research and diagnosis

2015 - BioMed Central | BMC Infectious Diseases

Artigo Brasil Produção Nacional Revisado por pares

Patrícia Moisés Urias, Luis Henrique dos Reis Menêzes, Vicelma Luiz Cardoso, Miriam Maria de Resende, Juliana de Souza Ferreira,

Li-ion batteries (LIBs) should be recycled because of the environmental reasons and this type of waste represents an important secondary source of metals. This work aimed to evaluate the recovery of Co and Li from LIBs by hydrometallurgy. The efficiency of different leachants was tested: H2SO4 (2 M), fermentation effluent with supplementation of organic acids (lactic, acetic, butyric and propionic acids) (3.4 M) and a combination of fermentation effluent (0.75 M) and H2SO4 (1.25 M). In addition, the effect ...

Tópico(s): Advancements in Battery Materials

2020 - Taylor & Francis | Environmental Technology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Denise Josino Soares, Pedro Hermano Menezes de Vasconcelos, André Luiz Melo Camelo, Elisane Longhinotti, Paulo Henrique Machado de Sousa, Raimundo Wilane de Figueiredo,

Brazil is one of the three largest producers of fruits in the world, and among those fruit trees, the cashew tree stands out due to the high nutritional and commercial value of its products. During its fruit processing, there are losses in some compounds and few studies address this issue. Over the last decade the conventional system of food production has been substituted for the organic cultivation system, which is a promising alternative source of income given the global demand for healthy food. ...

Tópico(s): Horticultural and Viticultural Research

2013 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Evanice Menezes Marçal Vieira, Álvaro Henrique Borges, Luiz Evaristo Ricci Volpato, Alessandra Nogueira Porto, Artur Aburad de Carvalhosa, Gilberto de Almeida Botelho, Matheus Coêlho Bandéca,

Dermoid cysts in oral cavity are unusual lesions. Their etiology is not yet clear and can be associated with trapped cells as a result of the inclusion error resulting in the development into the ectoderm, mesoderm, and endoderm tissues. The aim of this case report is to evidence the presence of a dermoid cyst in the floor of mouth surgically removed. In the present case, the lesion showed soft consistency, floating, regular borders, smooth surface, and the same color as the adjacent mucosa, asymptomatic ...

Tópico(s): Head and Neck Anomalies

2014 - Hindawi Publishing Corporation | Case Reports in Pathology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Zigomar Menezes de Souza, Domingos Guilherme Pellegrino Cerri, Marcelo José Colet, Luiz Henrique Antunes Rodrigues, Paulo Sérgio Graziano Magalhães, Rafael Junqueira Araújo Mandoni,

Um dos desafios da agricultura de precisão é oferecer subsídios para a definição de unidades de manejo para posteriores intervenções. Portanto, o objetivo deste trabalho foi avaliar os atributos químicos do solo e a produtividade da cultura de cana-de-açúcar por meio da geoestatística e mineração de dados pela indução da árvore de decisão. A produtividade da cana-de-açúcar foi mapeada em uma área de aproximadamente 23ha, utilizando-se o critério de célula, por meio de um monitor de produtividade ...

Tópico(s): Mineral Processing and Grinding

2010 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Ciência Rural

Artigo Acesso aberto Brasil Produção Nacional

Rafael Rodolfo Tomaz de Lima, Taiana Brito Menêzes Flor, Pedro Henrique de Araújo, Luiz Roberto Augusto Noro,

Resumo Objetivou-se analisar o perfil das teses e dissertações sobre travestilidade, transexualidade e saúde nos Programas de Pós-Graduação stricto sensu do Brasil, por meio de um estudo fundamentado no referencial teórico-metodológico da análise bibliométrica. Os 65 trabalhos selecionados foram extraídos do Catálogo de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior e da Biblioteca Digital Brasileira de Teses e Dissertações. Constata-se que a maioria das produções ...

Tópico(s): Reproductive Health and Technologies

2020 - Fundação Oswaldo Cruz, Escola Politécnica de Saúde Joaquim Venâncio | Trabalho Educação e Saúde

Artigo Brasil Produção Nacional Revisado por pares

V.N. Lima, Cícera Datiane de Morais Oliveira‐Tintino, Enaide Soares Santos, Luís Pereira-de-Morais, Saulo Relison Tintino, Thiago Sampaio de Freitas, Yuri S. Geraldo, Raimundo Luíz Silva Pereira, Rafael Pereira da Cruz, Irwin Rose Alencar de Menezes, Henrique Douglas Melo Coutinho,

The indiscriminate use of antimicrobial drugs has increased the spectrum of exposure of these organisms. In our studies, these phenolic compounds were evaluated: gallic acid, caffeic acid and pyrogallol. The antibacterial, antifungal and modulatory of antibiotic activities of these compounds were assayed using microdilution method of Minimum Inhibitory Concentration (MIC) to bacteria and Minimum Fungicide Concentration (MFC) to fungi. The modulation was made by comparisons of the MIC and MFC of the ...

Tópico(s): Phytochemicals and Antioxidant Activities

2016 - Elsevier BV | Microbial Pathogenesis

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Láuren Machado Drumond de Souza, Mayara Bapstitucci Ogaki, Elisa Amorim Amâncio Teixeira, Graciéle Cunha Alves de Menezes, Peter Convey, Carlos A. Rosa, Luiz Henrique Rosa,

We evaluated the diversity and enzymatic activities of culturable fungi recovered from cotton baits submerged for 2 years in Hennequin Lake, King George Island, and from benthic biofilms in Kroner Lake, Deception Island, South Shetland Islands, maritime Antarctica. A total of 154 fungal isolates were obtained, representing in rank abundance the phyla Ascomycota, Basidiomycota and Mortierellomycota. Thelebolus globosus, Goffeauzyma sp., Pseudogymnoascus verrucosus and Metschnikowia australis were ...

Tópico(s): Lichen and fungal ecology

2022 - Springer Nature | Brazilian Journal of Microbiology

Revisão Acesso aberto Brasil Produção Nacional Revisado por pares

Taiana Brito Menêzes Flor, Edemberg Teixeira Cirilo, Rafael Rodolfo Tomaz de Lima, Pedro Henrique Sette‐de‐Souza, Luiz Roberto Augusto Noro,

Resumo Este estudo tem como objetivo investigar a formação de profissionais de saúde em programas de Residência Multiprofissional em Saúde (RMS) direcionados à atenção básica no Brasil. Trata-se de uma revisão sistemática da literatura conduzida nas bases de dados SciELO, BVS e PubMed no ano de 2019, registrada sob número CRD42019134350. A busca ocorreu utilizando descritores relacionados à RMS e à atenção básica, sendo incluídas pesquisas empíricas sobre o tema sem alto risco de viés. Dos 700 registros ...

Tópico(s): Health Education and Validation

2022 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Joelma Maria Cardoso Gomide, Rodrigo Cunha Alvim de Menezes, Luciano Fernandes, Fernanda C. Silva, Leonardo Máximo Cardoso, Pedro Henrique de Amorim Miranda, Luiz Gonzaga da Silva, Mércia P. Lima, Jorge L. Pesquero, Giselle Foureaux, Anderson J. Ferreira, Deoclécio Alves Chianca,

New Findings What is the central question of this study? Is the increase in blood pressure observed in rats fed a low protein diet due to overactivation of sympathetic and renin angiontensin systems? What is the main finding and its importance? The data show an increase in the expression of angiotensin II type 1 receptors and an incrased sympathetic activity in this experimental model, suggesting that both systems are contributing to the high blood pressure observed in these animals. Previous studies ...

Tópico(s): Birth, Development, and Health

2012 - Wiley | Experimental Physiology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Léa Cristina Castellucci, Sarra E. Jamieson, E. Nancy Miller, Eliane Pereira Menezes, Joyce Moura Oliveira, Andréa Magalhães, Luiz Henrique Guimarães, Marcus Miranda Lessa, Amélia Ribeiro de Jesus, Edgar M. Carvalho, Jenefer M. Blackwell,

Abstract Background L. braziliensis causes cutaneous (CL) and mucosal (ML) leishmaniasis. Wound healing neutrophil (PMN) and macrophage responses made following the bite of the vector sand fly contribute to disease progression in mice. To look at the interplay between PMN and macrophages in disease progression in humans we asked whether polymorphisms at genes that regulate their infiltration or function are associated with different clinical phenotypes. Specifically, CXCR1 (IL8RA) and CXCR2 (IL8RB) are ...

Tópico(s): Vector-borne infectious diseases

2010 - BioMed Central | BMC Medical Genetics