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Artigo Acesso aberto Revisado por pares

Mark White, Nick Ashton,

... org/10.1098/rstb.2008.0002Fernando Diez-Martín, Policarpo Sánchez-Yustos, José Ángel Gómez-González, Diana Gómez de la Rúa ...

Tópico(s): Primate Behavior and Ecology

2003 - University of Chicago Press | Current Anthropology

Artigo Revisado por pares

Paul Christopher Manuel, Maurya N. Tollefsen,

... article = 266519&visual = 16 [5] See 'Cardeal D. José Policarpo diz que aborto é uma atitude egoísta', PortugalDiário, ...

Tópico(s): Religion and Society in Latin America

2008 - Taylor & Francis | South European Society & Politics

Artigo Revisado por pares

Mário Véstias, Rui Policarpo Duarte, José T. de Sousa, Horácio C. Neto,

Deep learning and, in particular, convolutional neural networks (CNN) achieve very good results on several computer vision applications like security and surveillance, where image and video analysis are required. These networks are quite demanding in terms of computation and memory and therefore are usually implemented in high-performance computing platforms or devices. Running CNNs in embedded platforms or devices with low computational and memory resources requires a careful optimization of system ...

Tópico(s): Advanced Image and Video Retrieval Techniques

2020 - Elsevier BV | Microprocessors and Microsystems

Artigo Acesso aberto Revisado por pares

Mário Véstias, Rui Policarpo Duarte, José T. de Sousa, Horácio C. Neto,

Deep learning is now present in a wide range of services and applications, replacing and complementing other machine learning algorithms. Performing training and inference of deep neural networks using the cloud computing model is not viable for applications where low latency is required. Furthermore, the rapid proliferation of the Internet of Things will generate a large volume of data to be processed, which will soon overload the capacity of cloud servers. One solution is to process the data at ...

Tópico(s): Machine Learning and ELM

2020 - Multidisciplinary Digital Publishing Institute | Algorithms

Artigo Acesso aberto Revisado por pares

Mário Véstias, Rui Policarpo Duarte, José T. de Sousa, Horácio C. Neto,

Edge devices are becoming smarter with the integration of machine learning methods, such as deep learning, and are therefore used in many application domains where decisions have to be made without human intervention. Deep learning and, in particular, convolutional neural networks (CNN) are more efficient than previous algorithms for several computer vision applications such as security and surveillance, where image and video analysis are required. This better efficiency comes with a cost of high ...

Tópico(s): Advanced Image and Video Retrieval Techniques

2019 - Multidisciplinary Digital Publishing Institute | Electronics

Artigo Acesso aberto Revisado por pares

Mário Véstias, Rui Policarpo Duarte, José T. de Sousa, Horácio C. Neto,

Convolutional neural networks have become the state of the art of machine learning for a vast set of applications, especially for image classification and object detection. There are several advantages to running inference on these models at the edge, including real-time performance and data privacy. The high computing and memory requirements of convolutional neural networks have been major obstacles to the broader deployment of CNNs on edge devices. Data quantization is an optimization method that ...

Tópico(s): Advanced Image and Video Retrieval Techniques

2020 - Institute of Electrical and Electronics Engineers | IEEE Access

Artigo Revisado por pares

Fernando Diéz Martín, Policarpo Sánchez Yustos, José Ángel Gómez González, Luis Luque, Diana Gómez de la Rúa, Manuel Domínguez‐Rodrigo,

Recent fieldwork carried out in EN1-Noolchalai between 2009 and 2011, one of the most significant Acheulean sites located on the Sambu Escarpment of Peninj (Tanzania) and dated to 1.5–1.4 Ma, has allowed us to undertake more complete geomorphologic and sedimentological research at this site. This contextual research has allowed us to clarify the geoarchaeological interpretation of this taphonomically complex site in order to assess its relevance within the Early Acheulean in East Africa. New stratigraphic ...

Tópico(s): Archaeology and Rock Art Studies

2013 - Elsevier BV | Quaternary International

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Danilo Roman‐Campos, Hugo L. Duarte, Policarpo Ademar Sales, Antônio José Natali, Catherine Ropert, Ricardo T. Gazzinelli, Jáder Santos Cruz,

Trypanosoma cruzi, an intracellular protozoan parasite infecting a wide variety of vertebrates, is the agent responsible for Chagas’ disease. This pathology often results in severe inflammatory heart condition and it is one of the major causes of dilated cardiomyopathy leading to heart failure in Latin America. Nevertheless, little is known about the changes in isolate cardiac myocytes contractility during the development of this pathology. Here we report a relationship between cytokines profile ...

Tópico(s): Cardiomyopathy and Myosin Studies

2009 - Springer Nature | Basic Research in Cardiology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Elisa Sonehara, María do Socorro Luna Cruz, Paula Roquetti Fernandes, Fernando Policarpo, José Fernandes Filho,

INTRODUÇÃO: A obesidade é uma doença metabólica caracterizada por uma etiologia multifatorial que propicia o acúmulo de gordura levando a quadros de morbidade e mortalidade. OBJETIVO: Verificar os efeitos de um programa de reabilitação pulmonar sobre a mecânica respiratória, a capacidade funcional e a qualidade de vida de 20 mulheres obesas sedentárias com idade média de 48,75 ± 13,71 e IMC de 34,54 ± 3,85 kg/m². MATERIAIS E MÉTODOS: As voluntárias foram entrevistadas usando o questionário SF-36 como ...

Tópico(s): Chronic Obstructive Pulmonary Disease (COPD) Research

2011 - PONTIFÍCIA UNIVERSIDADE CATÓLICA DO PARANÁ | Fisioterapia em Movimento

Artigo Acesso aberto Revisado por pares

Zaida Herrador, Belén García, Policarpo Ncogo, María Jesús Perteguer, José Miguel Rubio, Eva Rivas, Marta Cimas, Guillermo Ordóñez, Silvia de Pablos, Ana Hernández-González, Rufino Nguema, Laura Moya, María Romay‐Barja, Teresa Gárate, Kira Barbre, Agustín Benito,

Background Onchocerciasis, also known as river blindness, is a parasitic disease. More than 99 percent of all cases occur in Africa. Bioko Island (Equatorial Guinea) is the only island endemic for onchocerciasis in the world. Since 2005, when vector Simulium yahense was eliminated, there have not been any reported cases of infection. This study aimed to demonstrate that updated WHO criteria for stopping mass drug administration (MDA) have been met. Methodology/Principal findings A cross-sectional ...

Tópico(s): Mosquito-borne diseases and control

2018 - Public Library of Science | PLoS neglected tropical diseases

Artigo Revisado por pares

Manuel Domínguez‐Rodrigo, Audax Mabulla, Henry T. Bunn, Rebeca Barba, Fernando Diéz Martín, Charles P. Egeland, Eduardo Espílez, A. Egeland, José Yravedra, Policarpo Sánchez,

New archaeological excavations and research at BK, Upper Bed II (Olduvai Gorge, Tanzania) have yielded a rich and unbiased collection of fossil bones. These new excavations show that BK is a stratified deposit formed in a riverine setting close to an alluvial plain. The present taphonomic study reveals the second-largest collection of hominin-modified bones from Olduvai, with abundant cut marks found on most of the anatomical areas preserved. Meat and marrow exploitation is reconstructed using the ...

Tópico(s): Forensic Anthropology and Bioarchaeology Studies

2009 - Elsevier BV | Journal of Human Evolution

Artigo Revisado por pares

Manuel Domínguez‐Rodrigo, Audax Mabulla, Henry T. Bunn, Fernando Diéz Martín, Enrique Baquedano, Doris Barboni, Rebeca Barba, Santiago David Domínguez-Solera, Policarpo Sánchez, Gail M. Ashley, José Yravedra,

Abstract FLK North is one of the densest concentrations of fossils found in Olduvai Gorge. A recent taphonomic re-evaluation of the collection excavated by Leakey at the site suggests that it was a palimpsest in which most of the animals were accumulated and modified by carnivores. The lithic tools therefore seem to have an independent depositional history from most of the fauna. The present study, based on new excavations, expands the evidence supporting this interpretation and demonstrates a thicker ...

Tópico(s): Wildlife Ecology and Conservation

2010 - Cambridge University Press | Quaternary Research

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Nayara Cristina Fonseca, Luana Faria da Cruz, Filipe da Silva Villela, Glaécia Aparecida do Nascimento Pereira, Jair L. Siqueira-Neto, Danielle Kellar, Brian M. Suzuki, Debalina Ray, Thiago Belarmino de Souza, Ricardo José Alves, Policarpo Ademar Sales, Álvaro J. Romanha, Silvane Maria Fonseca Murta, James H. McKerrow, Conor R. Caffrey, Renata Barbosa de Oliveira, Rafaela Salgado Ferreira,

ABSTRACT The pressing need for better drugs against Chagas disease, African sleeping sickness, and schistosomiasis motivates the search for inhibitors of cruzain, rhodesain, and Schistosoma mansoni CB1 (SmCB1), the major cysteine proteases from Trypanosoma cruzi , Trypanosoma brucei , and S. mansoni , respectively. Thiosemicarbazones and heterocyclic analogues have been shown to be both antitrypanocidal and inhibitory against parasite cysteine proteases. A series of compounds was synthesized and evaluated ...

Tópico(s): Parasites and Host Interactions

2015 - American Society for Microbiology | Antimicrobial Agents and Chemotherapy

Artigo Acesso aberto Revisado por pares

María Romay‐Barja, Inmaculada Jarrín, Policarpo Ncogo, Gloria Nseng, María José Sagrado, María A. Santana-Morales, Pilar Aparcio, Basilio Valladares, Matilde Riloha, Agustín Benito,

Background Malaria remains a major cause of morbidity and mortality among children under five years old in Equatorial Guinea. However, little is known about the community management of malaria and treatment-seeking patterns. We aimed to assess symptoms of children with reported malaria and treatment-seeking behaviour of their caretakers in rural and urban areas in the Bata District. Methodology A cross-sectional study was conducted in the district of Bata and 440 houses were selected from 18 rural ...

Tópico(s): Parasites and Host Interactions

2015 - Public Library of Science | PLoS ONE

Artigo Acesso aberto Revisado por pares

David F. Mota, Helena Cruz, Pedro R. Miranda, Rui Policarpo Duarte, José T. de Sousa, Horácio C. Neto, Mário Véstias,

Synthetic aperture radar is a microwave technique to extracting image information of the target. Electromagnetic waves that are reflected from the target are acquired by the aircraft or satellite receivers and sent to a ground station to be processed by applying computational demanding algorithms. Radar data streams are acquired by an aircraft or satellite and sent to a ground station to be processed in order to extract images from the data since these processing algorithms are computationally demanding. ...

Tópico(s): Radar Systems and Signal Processing

2022 - Institute of Electrical and Electronics Engineers | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

Artigo Brasil Produção Nacional

José Policarpo Costa-Neto, Ricardo Barbieri, Maria do Socorro Rodrigues Ibañez, Paulo Roberto Saraiva Cavalcante, Nivaldo Magalhães Piorski,

Durante dois anos (1997-99), foram estudadas as principais variaveis limnologicas dos tres ecossistemas aquaticos mais representativos da Baixada Maranhense (1°59’ - 4°00’ S e 44°21’ - 45°33’ W). Tais sistemas, por serem inundaveis, apresentam extrema complexidade na estrutura e no funcionamento, sendo constituidos por: a) lagos rasos temporarios que ocupam toda a area de campos abertos que se inundam no periodo das chuvas; b) lagos marginais; c) sistemas lacustres permanentes. A pesquisa abrangeu: os ...

Tópico(s): Fish biology, ecology, and behavior

2001 - UNIVERSIDADE FEDERAL DO MARANHÃO | Boletim do Laboratório de Hidrobiologia

Artigo Revisado por pares

Daniel Stiles,

... bor.12237Fernando Diez-Martín, Cristina Fraile, David Uribelarrea, Policarpo Sánchez-Yustos, Manuel Domínguez-Rodrigo, Javier Duque, Isabel Díaz, Sara De Francisco, José Yravedra, Audax Mabulla, Enrique Baquedano SHK Extension: a ...

Tópico(s): Pleistocene-Era Hominins and Archaeology

1979 - University of Chicago Press | Current Anthropology

Artigo Brasil Produção Nacional Revisado por pares

Marcela Silva Lopes, Renata Celi Carvalho de Souza Pietra, Tatiane Freitas Borgati, C.F.D. Romeiro, Policarpo Ademar Sales, Álvaro J. Romanha, Ricardo José Alves, Elaine M. Souza–Fagundes, Ana Paula Fernandes, Renata Barbosa de Oliveira,

A series of nitroaromatic compounds was synthesized and evaluated as potential antileishmanial and trypanocidal agents. Five compounds exerted significant anti-leishmanial activity in vitro against promastigotes forms of Leishmania (L.) amazonensis, with IC50 in the range of 23–59 μmol L−1, but none were active against amastigotes intracellular forms of Trypanosoma cruzi. In vitro cytotoxicity on the proliferation of human peripheral blood mononuclear cells (PBMC) stimulated with phytohemaglutinin ( ...

Tópico(s): Synthesis and Biological Evaluation

2011 - Elsevier BV | European Journal of Medicinal Chemistry

Artigo Acesso aberto Revisado por pares

Pedro Berzosa, Andrés Esteban-Cantos, Luz García, Vicenta González, Marisa Navarro, T Fernandez, María Romay‐Barja, Zaida Herrador, José Miguel Rubio, Policarpo Ncogo, María A. Santana-Morales, Basilio Valladares, Matilde Riloha, Agustín Benito,

The emergence of drug resistance in Plasmodium falciparum has been a major contributor to the global burden of malaria. Drug resistance complicates treatment, and it is one of the most important problems in malaria control. This study assessed the level of mutations in P. falciparum genes, pfdhfr, pfdhps, pfmdr1, and pfcrt, related to resistance to different anti-malarial drugs, in the Continental Region of Equatorial Guinea, after 8 years of implementing artesunate combination therapies as the ...

Tópico(s): Parasites and Host Interactions

2017 - BioMed Central | Malaria Journal

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Osamu Mitamura, Nobutada Nakamoto, Maria do Socorro Rodrigues Ibañez, Paulo Roberto Saraiva Cavalcante, José Policarpo Costa Neto, Ricardo Barbieri,

AIM: This work is aimed at extending the understanding of urea cycle in freshwater ecosystems. Its degradation rate concerning microorganisms activities was measured in the turbid waters of Pindaré and Turiaçu rivers located on the pre-Amazonian floodplain, Brazil; METHODS: The Pindaré and Turiaçu aquatic systems have distinct dry and rainy periods. The investigation was developed in the middle of the rainy period, and field activities were carried out in the extensive water bodies from the middle ...

Tópico(s): Microbial Community Ecology and Physiology

2012 - Associação Brasileira de Limnologia | Acta Limnologica Brasiliensia

Artigo Revisado por pares

Fernando Diéz Martín, Policarpo Sánchez Yustos, Diana Gómez de la Rúa, José Ángel Gómez González, Luis Luque, Rebeca Barba,

The aim of this paper is to undertake the technological description of ES2-Lepolosi, one of the Acheulean sites located on the Sambu Escarpment in the Lake Natron Basin (Tanzania) and dated to 1.5–1.4 Ma. Through the combination of three different lithic collections (Glynn Isaac's 1961–81, Domínguez-Rodrigo's 1999–2002 and the sample retrieved during our own excavations carried out between 2007 and 2011), we provide here a comprehensive description of the technological characteristics seen in this ...

Tópico(s): Pacific and Southeast Asian Studies

2013 - Elsevier BV | Quaternary International

Artigo Acesso aberto Revisado por pares

Daniel Pestana, Pedro R. Miranda, João D. Lopes, Rui Policarpo Duarte, Mário Véstias, Horácio C. Neto, José T. de Sousa,

Object detection and classification is an essential task of computer vision. A very efficient algorithm for detection and classification is YOLO (You Look Only Once). We consider hardware architectures to run YOLO in real-time on embedded platforms. Designing a new dedicated accelerator for each new version of YOLO is not feasible given the fast delivery of new versions. This work's primary goal is to design a configurable and scalable core for creating specific object detection and classification ...

Tópico(s): Advanced Image and Video Retrieval Techniques

2021 - Institute of Electrical and Electronics Engineers | IEEE Access

Artigo Acesso aberto Revisado por pares

José Manuel Palao Andrés, Policarpo Manzanares, David Valadés,

The purpose of this paper was to study the ranges in height, weight, age, spike reach, and block reach of volleyball players in relation to the player position and the level of their respective teams in peak performance. The analysed sample included 1454 male and 1452 female players who participated in the volleyball competitions of the Olympic Games and World Championships in the 2000-2012 period. A descriptive, correlational, and longitudinal design was used. The variables studied were: the player ...

Tópico(s): Sports Dynamics and Biomechanics

2014 - De Gruyter Open | Journal of Human Kinetics

Artigo Acesso aberto Revisado por pares

José Manuel Palao Andrés, Policarpo Manzanares López, Enrique Ortega,

Technical and tactical actions determine performance in beach volleyball. This research develops and tests an instrument to monitor and evaluate the manner of execution and efficacy of the actions in beach volleyball. The purpose of this paper was to design and validate an observational instrument to analyze technical and tactical actions in beach volleyball. The instrument collects information regarding: a) information about the match (context), b) information about game situations, c) information ...

Tópico(s): Sport Psychology and Performance

2015 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | Motriz Revista de Educação Física

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Fernando Policarpo-Barbosa, José Fernandes Filho, Paula Roquetti-Fernandes, Maria Irany-Knackfuss,

Objetivo O presente estudo teve como objetivo desenvolver modelos de estimativa da aptidão cardiopulmonar sem a realização de teste de esforço, visando ao levantamento epidemiológico em jovens brasileiros. Para tanto, foram avaliados 243 voluntários, sendo 137 homens (25,40±6,39 anos) e 106 mulheres (23,68±5,23 anos). Método Os voluntários foram randomizados em dois grupos (Grupo 1, controle com 81 homens e 58 mulheres) e (Grupo 2, de validação cruzada com 56 homens e 48 mulheres), submetidos a testes ...

Tópico(s): Nutritional Studies and Diet

2008 - National University of Córdoba | Revista de Salud Pública

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Claudionor Delgado, José Fernandes Filho, Fernando Policarpo Barbosa, Hildeamo Bonifácio Oliveira,

FUNDAMENTOS E OBJETIVO: Este estudo descritivo comparativo visa analisar a força nos diferentes ângulos na extensão e flexão do joelho em militares. Seu objetivo foi o de avaliar a força dos músculos extensores e flexores da articulação do joelho em diferentes ângulos por meio de esfigmomanômetro modificado (EM) em militares saudáveis. MÉTODOS: A amostra foi composta por 31 militares, sendo 19 do sexo feminino e 12 do sexo masculino, com idade média de 26,5 ± 5,8 anos; estatura média respectiva de ...

Tópico(s): Muscle activation and electromyography studies

2004 - Sociedade Brasileira de Medicina do Esporte | Revista Brasileira de Medicina do Esporte

Artigo Acesso aberto Revisado por pares

José Manuel Palao Andrés, Policarpo Manzanares, David Valadés,

Way of scoring of Spanish first Division volleyball teams in relation to winning/losing, home/away, final classification, and type of confrontation

Tópico(s): Physical Education and Pedagogy

2015 - University of Alicante | Journal of Human Sport and Exercise

Artigo Revisado por pares

Nicola Stern, Henry T. Bunn, Ellen M. Kroll, Gary Haynes, Sally McBrearty, Jeanne Sept, Pamela R. Willoughby,

... 04.003Fernando Diez-Martín, Cristina Fraile, David Uribelarrea, Policarpo Sánchez-Yustos, Manuel Domínguez-Rodrigo, Javier Duque, Isabel Díaz, Sara De Francisco, José Yravedra, Audax Mabulla, Enrique Baquedano SHK Extension: a ...

Tópico(s): Primate Behavior and Ecology

1993 - University of Chicago Press | Current Anthropology