Produção Nacional
Revisado por pares
Luciana Rodrigues da Cunha, Nilda de Fátima Ferreira Soares, Flávia Cristina Costa Assis, Nathália Ramos de Melo, Alexandre Fontes Pereira, Camila Batista da Silva,
A intolerância à lactose consiste na ausência ou deficiência na produção da lactase, enzima responsável por hidrolisar a lactose proveniente do leite e derivados. Indivíduos acometidos desse mal são privados de ingerir o leite em virtude dos desconfortos intestinais promovidos pela não hidrólise desse carboidrato no intestino. Assim, o presente trabalho objetivou desenvolver filme de base celulósica incorporado com lactase para redução do teor de lactose presente no leite. Os filmes foram produzidos ...
Tópico(s): Pineapple and bromelain studies
2007 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Produção Nacional
Revisado por pares
Gilvan Pereira de Figueredo, Alexandre Fontes Melo de Carvalho, Rodolfo L.B.A. Medeiros, Francisco Marcelo Silva, Heloísa P. Macedo, Marcus Antônio de Freitas Melo, Dulce Maria de Araújo Melo,
Magnesium aluminate can be obtained by the methods: ceramic method, sol-gel, co-precipitation, hydrothermal and combustion. However, this work presents a simple and low cost route to obtain MgAl2O4 through the gelatin method. The main objective was to use gelatin as an organic precursor and to verify the influence of temperature and time of calcination on the structural and morphological properties of obtained materials. Al and Mg nitrates were used as metal precursors with Al/Mg = 2 ratio. Samples ...
Tópico(s): Nanomaterials for catalytic reactions
2017 - Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímer | Materials Research
... historically known as Fontism, after its main advocate, Fontes Pereira de Melo) that pursued the modernisation of the country or, ...
Tópico(s): Australian History and Society
2022 - Taylor & Francis | Photographies
... 12th grade, from the elementary and secondary school Fontes Pereira de Melo, in Porto. The goal was to assess the ...
Tópico(s): Rural and Ethnic Education
2024 - Springer Nature | Smart innovation, systems and technologies
Produção Nacional
Revisado por pares
Ludmylla Teixeira Soares, Aldo José Fontes-Pereira, Lílian Danielle Paiva Magno, Hugo de Melo Figueiras, Luciane Lobato Sobral,
Introduction Parkinson's disease (PD) is a neurodegenerative disorder, which triggers limitations and disability in people. Therefore, rehabilitation therapy is widely recommended in patients with PD, especially those who do not respond to pharmacological treatment.Objective Evaluate the effect of a protocol of Whole-body Vibration (WBV) in balance, gait and Quality of Life (QOL) of patients with PD, who do not respond to pharmacological treatment.Methods It was performed 12 sessions of a protocol ...
Tópico(s): Ergonomics and Musculoskeletal Disorders
2014 - PONTIFÍCIA UNIVERSIDADE CATÓLICA DO PARANÁ | Fisioterapia em Movimento
Produção Nacional
Revisado por pares
Héber Paulino Pena, Vinícius Silva Belo, José Cândido Caldeira Xavier‐Júnior, Rafael Gonçalves Teixeira‐Neto, Saulo Nascimento de Melo, Diego Andrade Pereira, Igor de Campos Fontes, Ingrid Morselli Santos, Valeriana Valadares Lopes, Wagner Luiz Tafuri, Gustavo Adolfo Sierra Romero, Eduardo Sérgio da Silva,
To analyse the accuracy of American tegumentary leishmaniasis (ATL) diagnostic methods and evaluate the quality of the existing publications by means of a systematic review.Diagnostic tests evaluated in at least two studies with common reference standards were included in the sensitivity and/or specificity meta-analyses. Quality and susceptibility to bias were analysed using the QUADAS-2 and STARD tools.The title and abstract of 3387 publications were evaluated after deduplication resulting from ...
Tópico(s): Trypanosoma species research and implications
2020 - Wiley | Tropical Medicine & International Health
Produção Nacional
Revisado por pares
Roney Elias da Silva, Alan Lane de Melo, Leógenes Horácio Pereira, Lilian Fontes Frederico,
Em estudo malacológico realizado na Bacia Hidrográfica do Lago Soledade, Ouro Branco, MG, no período de setembro de 1986 a março de 1991, foram coletados 46.579 moluscos, representados por 07 espécies de 05 famílias. Foram coletados 39.176 exemplares de Biomphalaria tenagophila, 1.296 de B. glabrata, sete exemplares de Drepanotrema cimex, 2.527 de Physa sp, 417 de Lymnaea sp, 92 de Pomacea haustrum e, a partir de março/1990, 3.064 exemplares de Melanoides tuberculata (Melanniidae = Thiaridae). Dos ...
Tópico(s): Helminth infection and control
1994 - UNIVERSIDADE DE SÃO PAULO | Revista do Instituto de Medicina Tropical de São Paulo
Produção Nacional
Revisado por pares
Priscila Silva Matos, Steven J. Fonte, Sandra Santana de Lima, Marcos Gervásio Pereira, Courtland Kelly, Júnior Melo Damian, Marcelo Antoniol Fontes, Guilherme Montandon Chaer, Felipe C. Brasil, Everaldo Zonta,
Agroforestry systems have been promoted as a solution to address trade-offs between environmental conservation efforts and the need for increased agricultural productivity on smallholder farms in Brazil. However, the impact of land use change from degraded pasture to agroforestry on soil properties remains unclear. The objectives of this research were to: (1) assess soil chemical, physical and biological properties across distinct land uses (degraded pasture, agroforestry and secondary forest); and ( ...
Tópico(s): Agroforestry and silvopastoral systems
2020 - Multidisciplinary Digital Publishing Institute | Sustainability
Produção Nacional
Revisado por pares
Gedeão Batista de Oliveira, Enéas Andrade Fontes-Júnior, Sabrina de Carvalho, Josiane Batista da Silva, Luanna Melo Pereira Fernandes, Maria Cristina Souza Pereira Oliveira, Rui Daniel Prediger, Walace Gomes‐Leal, Rafael Rodrigues Lima, Cristiane do Socorro Ferraz Maia,
Ethanol is an important risk factor for the occurrence of cerebral ischemia contributing to poor prognosis and inefficacy of drug treatments for stroke-related symptoms. Females have a higher lifetime risk for stroke than males. Moreover, female gender has been associated with increased ethanol consumption during adolescence. In the present study, we investigated whether chronic ethanol exposure during adolescence may potentiate the motor impairments and cortical damage induced by focal ischemia ...
Tópico(s): Neuroscience and Neuropharmacology Research
2014 - Elsevier BV | Brain Research
Produção Nacional
Revisado por pares
Ana CA Oliveira, Maria CS Pereira, Luana Nazaré da Silva Santana, Rafael M. Fernandes, Francisco Bruno Teixeira, Gedeão Batista de Oliveira, Luanna Melo Pereira Fernandes, Enéas Andrade Fontes-Júnior, Rui Daniel Prediger, Maria Elena Crespo‐López, Walace Gomes‐Leal, Rafael Rodrigues Lima, Cristiane do Socorro Ferraz Maia,
There is increasing evidence that heavy ethanol exposure in early life may produce long-lasting neurobehavioral consequences, since brain structural maturation continues until adolescence. It is well established that females are more susceptible to alcohol-induced neurotoxicity and that ethanol consumption is increasing among women, especially during adolescence. In the present study, we investigated whether chronic ethanol exposure during adolescence through early adulthood in female rats may induce ...
Tópico(s): Fatty Acid Research and Health
2015 - SAGE Publishing | Journal of Psychopharmacology
Produção Nacional
Gecilmara Salviato Pileggi, Lícia Maria Henrique da Mota, Adriana María Kakehasi, Alexandre Wagner Silva de Souza, Aline Pereira da Rocha, Ana Karla Guedes de Melo, C.A.M. da Fonte, Cecilia Bortoletto, Claiton Viegas Brenol, Cláudia Diniz Lopes Marques, Cyrla Zaltman, Eduardo Ferreira Borba, Enio Ribeiro Reis, Eutília Andrade Medeiros Freire, Evandro Mendes Klumb, Georges Basile Christopoulos, Iêda Maria Magalhães Laurindo, Isabella Ballalai, Izaías Pereira da Costa, Lessandra Michelin, Lilian David de Azevêdo Valadares, Liliana Andrade Chebli, Marcus Lacerda, Maria Amazile Toscano, Michel Alexandre Yazbek, Rejane Maria Rodrigues de Abreu Vieira, Renata Ferreira Magalhães, Renato de Ávila Kfouri, Rosana Richtmann, Selma Merenlender, Valéria Valim, Marcos Renato de Assis, Sérgio Cândido Kowalski, Virgínia Fernandes Moça Trevisani,
In Brazil, we are facing an alarming epidemic scenario of Yellow fever (YF), which is reaching the most populous areas of the country in unvaccinated people. Vaccination is the only effective tool to prevent YF. In special situations, such as patients with chronic immune-mediated inflammatory diseases (CIMID), undergoing immunosuppressive therapy, as a higher risk of severe adverse events may occur, assessment of the risk-benefit ratio of the yellow fever vaccine (YFV) should be performed on an individual ...
Tópico(s): Autoimmune and Inflammatory Disorders Research
2019 - BioMed Central | Advances in Rheumatology
Produção Nacional
Revisado por pares
Aline Nascimento Oliveira, Alana Miranda Pinheiro, Ivaldo Jesus Almeida Belém-Filho, Luanna Melo Pereira Fernandes, Sabrina de Carvalho Cartágenes, Paula Ribera, Enéas Andrade Fontes-Júnior, Maria Elena Crespo‐López, Marta Chagas Monteiro, Marcelo de Oliveira Lima, Cristiane do Socorro Ferraz Maia,
Tópico(s): Air Quality and Health Impacts
2018 - Springer Science+Business Media | Environmental Science and Pollution Research
Produção Nacional
Guilherme S. Nunes, Fabrício Souza Neves, Felipe M Melo, Gláucio Ricardo Werner de Castro, Adriana Fontes Zimmermann, Ivânio Alves Pereira,
O objetivo deste estudo é descrever as características clínicas e as respostas às intervenções terapêuticas, incluindo a terapia antifator de necrose tumoral (TNF), em uma série de casos brasileiros de arterite de Takayasu (AT). Foi realizado um estudo observacional, retrospectivo, com base na revisão de prontuários, incluindo todos os pacientes com AT, de acordo com os critérios de classificação do American College of Rheumatology, em acompanhamento no Serviço de Reumatologia do Hospital Universitário ...
Tópico(s): Sarcoidosis and Beryllium Toxicity Research
2010 - Elsevier BV | Revista Brasileira de Reumatologia
Produção Nacional
Revisado por pares
Mallone Lopes Silva, Diandra Araújo Luz, Thiago Portal da Paixão, João Paulo Bastos Silva, Ivaldo Jesus Almeida Belém-Filho, Luanna Melo Pereira Fernandes, Ana Cristina Baetas Gonçalves, Enéas Andrade Fontes-Júnior, Marciene Ataíde de Andrade, Cristiane do Socorro Ferraz Maia,
Petiveria alliacea L. (Phytolaccaceae) is a perennial shrub native to the Amazon region and other tropical areas such as Central America and the Caribbean. Popularly known as mucuracaá, P. alliacea is used in the folk medicine for a broad variety of therapeutic purpose and also in religious ceremonies by slaves as a sedative, which highlights its properties on the Central Nervous System (CNS). The present study evaluated the effects of the P. alliacea leaves hydroalcoholic extract (PaLHE) on the cognition, ...
Tópico(s): Pharmacological Effects of Medicinal Plants
2015 - Elsevier BV | Journal of Ethnopharmacology
Produção Nacional
Revisado por pares
Thaís dos Santos Fontes Pereira, Fernanda Cristina Melo Pelinsari, Bruna Mara Ruas, Luanne Priscilla Pereira Avelar, Vitor José da Fonseca, Mauro Henrique Nogueira de Abreu, Ulisses Eliezer Salomão, Agnaldo Soares Lima, Maria Elisa de Souza e Silva, Ricardo Santiago Gomez,
ABSTRACT Objectives The liver pretransplant phase requires the interaction of multidisciplinary teams for optimal patient outcomes, including dental professionals. In this study, we sought to estimate the prevalence of complications related to dental extraction in liver transplant candidates. Material and methods This study is a case series of patients eligible for liver transplants referred for dental treatment between 2012 and 2014. Eligible patients for this study underwent at least one tooth ...
Tópico(s): Drug-Induced Hepatotoxicity and Protection
2016 - Wiley | Special Care in Dentistry
Produção Nacional
Revisado por pares
Andreza de Freitas Nunes Oliveira, Lara Isensee Saboya de Sousa, Vanessa Ariane Silva da Costa, João Victor Teixeira de Andrade, Lara Andrade Lucena Lima, Pedro Amaral Fontes de Sales, Danilo Ferreira da Silva, Arthur Prudêncio de Araújo Pereira, Vânia Maria Maciel Melo,
Soil degradation is a global issue that affects both plant productivity and human life. Intensive grazing practices can accelerate this process, mainly due to rapid removal of biomass from the soil surface. However, the long-term effects of grazing on biological, chemical, and physical properties remain poorly understood, particularly in tropical drylands, such as the Caatinga biome. Our aim was to evaluate the soil properties and combine both culture-dependent and -independent analyses to assess ...
Tópico(s): Phytase and its Applications
2021 - Elsevier BV | Microbiological Research
Produção Nacional
Revisado por pares
Ana Cláudia Pereira Terças‐Trettel, Elaine Cristina de Oliveira, Cor Jésus Fernandes Fontes, Alba Valéria Gomes de Melo, Renata Carvalho de Oliveira, Alexandro Guterres, Jorlan Fernandes, Raphael Gomes da Silva, Marina Atanaka, Mariano Martínez Espinosa, Elba Regina Sampaio de Lemos,
People living in mining regions are exposed to numerous biological agents by several specific types of transmission mechanisms. This study is designed to describe fatal hantavirus pulmonary syndrome (HPS) cases confirmed by serology and molecular analysis, where a seroprevalence survey was conducted in the gold mining regions of the state of Mato Grosso, in the official Amazon region, Brazil. Two fatal cases of HPS were confirmed in a mining area in the Legal Amazon, where malaria is one of the most ...
Tópico(s): Viral Infections and Outbreaks Research
2019 - Multidisciplinary Digital Publishing Institute | International Journal of Environmental Research and Public Health
Produção Nacional
Revisado por pares
Fernando B. R. da Silva, Polyane A. Cunha, Paula Ribera, Mayara A. Barros, Sabrina de Carvalho Cartágenes, Luanna Melo Pereira Fernandes, Francisco Bruno Teixeira, Enéas Andrade Fontes-Júnior, Rui Daniel Prediger, Rafael Rodrigues Lima, Cristiane do Socorro Ferraz Maia,
Over the last years, heavy ethanol consumption by teenagers/younger adults has increased considerably among females. However, few studies have addressed the long-term impact on brain structures' morphology and function of chronic exposure to high ethanol doses from adolescence to adulthood in females. In line with this idea, in the current study we investigated whether heavy chronic ethanol exposure during adolescence to adulthood may induce motor impairments and morphological and cellular alterations ...
Tópico(s): Peroxisome Proliferator-Activated Receptors
2018 - Frontiers Media | Frontiers in Behavioral Neuroscience
Produção Nacional
Revisado por pares
Gileno Vieira Lacerda-Júnior, Melline Fontes Noronha, Sanderson Tarciso Pereira de Sousa, Lucélia Cabral, Daniela Domingos, Mírian Lobo Sáber, I. S. de Melo, Valéria Maia de Oliveira,
The litterfall is the major organic material deposited in soil of Brazilian Caatinga biome, thus providing the ideal conditions for plant biomass-degrading microorganisms to thrive. Herein, the phylogenetic composition and lignocellulose-degrading capacity have been explored for the first time from a fosmid library dataset of Caatinga soil by sequence-based screening. A complex bacterial community dominated by Proteobacteria and Actinobacteria was unraveled. SEED subsystems-based annotations revealed ...
Tópico(s): Anaerobic Digestion and Biogas Production
2016 - Oxford University Press | FEMS Microbiology Ecology
Produção Nacional
Revisado por pares
Felipe Silva Neves, Vanessa Sequeira Fontes, Mário Círio Nogueira, Adriana Soares Torres Melo, Angélica Atala Lombelo Campos, Kelly Pereira de Lima, Eliane Rodrigues de Faria, Michele Pereira Netto, Renata Maria Souza Oliveira, Ana Paula Carlos Cândido,
This cross-sectional study estimated associations of eating contexts (including regularity of meals, places where they occur, and if they take place with attention and in company) with food consumption by degree of industrial processing and overweight indicators in a sample of Brazilian adolescents (14–19 years old) enrolled in 29 public schools in Juiz de Fora, MG (n = 805). We used an exploratory questionnaire, which was submitted to cluster analysis. Three clusters were identified: cluster 1 (n = 572), “ ...
Tópico(s): Nutritional Studies and Diet
2021 - Elsevier BV | Appetite
Produção Nacional
Revisado por pares
Taianne Machado NASCIMENTO, Antônio ALVES-JÚNIOR, Marco Antônio Prado Nunes, Tiago Rodrigo Pereira de FREITAS, Marco Antonio Fontes Sarmento da SILVA, Maria Rosa Melo Alves,
Background: Obesity is associated to several comorbidities, including nonalcoholic fatty liver disease, which implicates in isolated steatosis to steatohepatitis. The latter may progress to severe manifestations such as liver fibrosis, cirrhosis and hepatocellular carcinoma. Aim: To compare the presence of advanced liver fibrosis before and after bariatric surgery in patients of private and public health system. Methods: Patients from public and privative networks were studied before and after bariatric ...
Tópico(s): Diet and metabolism studies
2015 - Colégio Brasileiro de Cirurgia Digestiva | ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)
Produção Nacional
Revisado por pares
Gileno Vieira Lacerda-Júnior, Melline Fontes Noronha, Lucélia Cabral, Tiago Palladino Delforno, Sanderson Tarciso Pereira de Sousa, Paulo Ivan Fernandes‐Júnior, I. S. de Melo, Valéria Maia de Oliveira,
Drylands occupy approximately 41% of the Earth's terrestrial surface. Climate change and land use practices are expected to affect biogeochemical cycling by the soil microbiome in these ecosystems. Understanding how soil microbial community might respond to these drivers is extremely important to mitigate the processes of land degradation and desertification. The Caatinga, an exclusively Brazilian biome composed of an extensive seasonal tropical dry forest, is exposed to variable spatiotemporal ...
Tópico(s): Polar Research and Ecology
2019 - Frontiers Media | Frontiers in Microbiology
Produção Nacional
Revisado por pares
Marcella Rocha, Marquiony Marques dos Santos, Raphael Siqueira Fontes, Andréa S. P. de Melo, Aliete Cunha-Oliveira, Angélica Espinosa Miranda, Carlos Alberto Pereira de Oliveira, Hugo Gonçalo Oliveira, Cristine Martins Gomes de Gusmão, Thaisa Santos Lima, Rafael Pinto, Daniele M. S. Barros, Ricardo Alexsandro de Medeiros Valentim,
Congenital syphilis (CS) remains a threat to public health worldwide, especially in developing countries. To mitigate the impacts of the CS epidemic, the Brazilian government has developed a national intervention project called "Syphilis No." Thus, among its range of actions is the production of thousands of writings featuring the experiences of research and intervention supporters (RIS) of the project, called field researchers. In addition, this large volume of base data was subjected to analysis ...
Tópico(s): Syphilis Diagnosis and Treatment
2022 - Frontiers Media | Frontiers in Public Health
Produção Nacional
Revisado por pares
Leila Pereira Tenório, Vanessa Araújo Argolo, Helena Pinho de Sá, Enaldo Vieira de Melo, Edméa Fontes de Oliva Costa,
RESUMO Objetivos Avaliar a saúde mental dos estudantes, estratégias defensivas, fontes de estresse e alívio associadas a diferentes processos educacionais. Método Estudo qualitativo e transversal realizado em fevereiro de 2014 por meio de grupos focais e questionário semiestruturado com 78 estudantes do terceiro semestre de duas escolas médicas numa mesma universidade pública: uma com 53 anos, na capital, com modelo de ensino tradicional, e a outra com três anos, no interior,com modelo de Aprendizagem ...
Tópico(s): Health, Nursing, Elderly Care
2016 - Associção Brasileira de Educação Médica | Revista Brasileira de Educação Médica
Produção Nacional
Revisado por pares
Valdinar Ferreira Melo, Carlos Ernesto Gonçalves Reynaud Schaefer, Luiz Eduardo Ferreira Fontes, Adriana C. Chagas, João Bosco Lemos Júnior, Renato Pereira de Andrade,
Existem poucos estudos sobre os solos sob cultivo de subsistência em assentamentos rurais do norte da Amazônia. Os objetivos deste trabalho foram a caracterização de solos da Colônia Agrícola do Apiaú, Roraima, e a avaliação das alterações em algumas propriedades químicas resultantes dos sistemas de manejo adotados pelos agricultores, bem como os impactos da ação de queimadas nos solos. As áreas estudadas foram: pastagens, cultivo de banana e de milho, mata queimada e não queimada. As amostras de ...
Tópico(s): Soil erosion and sediment transport
2006 - Sociedade Brasileira de Ciência do Solo | Revista Brasileira de Ciência do Solo
Produção Nacional
Revisado por pares
Malcon do Prado Costa, José Aldo Alves Pereira, Marco Aurélio Leite Fontes, Pablo Hendrigo Alves de Melo, Daniel Salgado Pífano, André Schatz Pellicciottii, Patrícia Vieira Pompeu, Rossi Allan Silva,
Foi realizado o levantamento da comunidade arbórea de uma floresta tropical superomontana, situada na Serra de São Domingos, no planalto de Poços de Caldas, Minas Gerais, Brasil (altitude de 1.200 m a 1.575 m; 21°46'25"S, 46'24"10"W), com o objetivo de avaliar as variações estruturais e variáveis ambientais relacionadas. Foram analisados aspectos da estrutura fisionômica (densidade, área basal e distribuição de tamanho das árvores) e comunitária (composição, distribuição e diversidade de espécies). ...
Tópico(s): Geography and Environmental Studies
2011 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Ciência Florestal
Produção Nacional
Revisado por pares
Flávia Frattini, Fátima Rosalina Pereira Lopes, Fernanda Martins de Almeida, Rafaela Fintelman Rodrigues, Leonardo Pereira, Marcelo Antônio Tomaz, Abrahão Fontes Baptista, Paulo A. Melo, Ana Maria Blanco Martinez,
Despite the fact that the peripheral nervous system is able to regenerate after traumatic injury, the functional outcomes following damage are limited and poor. Bone marrow mesenchymal stem cells (MSCs) are multipotent cells that have been used in studies of peripheral nerve regeneration and have yielded promising results. The aim of this study was to evaluate sciatic nerve regeneration and neuronal survival in mice after nerve transection followed by MSC treatment into a polycaprolactone (PCL) nerve ...
Tópico(s): Wound Healing and Treatments
2012 - Mary Ann Liebert, Inc. | Tissue Engineering Part A
Produção Nacional
Revisado por pares
Gaspar Henrique Korndörfer, Suzana Pereira de Melo,
O estudo foi realizado em condições de campo, conduzido durante aproximadamente três anos, junto a Usina São Luiz Açúcar e Álcool, situada em Pirassununga (SP), utilizando-se a cultivar de cana-de-açúcar SP71-1406. Objetivou-se avaliar o desempenho de adubos fosfatados aplicados ao solo no plantio da cana planta, nas formas fluida e sólida, e seus efeitos ao longo do tempo, sobre a produtividade e qualidade da cana-de-açúcar. As fontes de fósforo testadas foram o superfosfato triplo, superfosfato ...
Tópico(s): Plant nutrient uptake and metabolism
2009 - UNIVERSIDADE FEDERAL DE LAVRAS | Ciência e Agrotecnologia
Ana Paula Gandra, Ana Paula Aires, Paula Catarino,
1 Escola Básica e Secundária Fontes Pereira de Melo, ESFPM (PORTUGAL)2 Universidade de Trás-os-Montes e Alto Douro, UTAD (PORTUGAL)
2017 - International Academy of Technology, Education and Development | EDULEARN proceedings
... historically known as Fontismo (after its main promoter, Fontes Pereira de Melo).One of the members of that elite was ...
Tópico(s): History of Education Research in Brazil
2017 - University of Porto | História Revista da Faculdade de Letras da Universidade do Porto