Limpar
648 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Primary Document Acesso aberto

Pavón, Francisco G. (Francisco González),

El Mosquito, Mexico, 8 de mayo 1841. Book.

0000 - Gale Group | Sabin

Capítulo de livro Revisado por pares

Giovanni Caire, Wim Coulier, Francisco J. Garijo, Jorge Marx Gómez, Juán Pavón, Francisco J. Montáns, Paulo Chaínho, Paul Kearney, Jamie Stark, Richard M. Evans, Philippe Massonet,

This paper presents the MESSAGE/UML agent oriented software engineering methodology and illustrates it on an analysis case study. The methodology covers MAS analysis and design and is intended for use in mainstream software engineering departments. MESSAGE integrates into a coherent AOSE methodology some basic agent related concepts such as Organization, role, goal and task, that have so far been studied in isolation. The MESSAGE notation extends the UML with agent knowledge level concepts, and ...

Tópico(s): Mobile Agent-Based Network Management

2002 - Springer Science+Business Media | Lecture notes in computer science

Artigo Acesso aberto Revisado por pares

Javier Flandes, Luis Fernando Giraldo‐Cadavid, Javier Alfayate, Iker Fernández-Navamuel, Carlos Agustı́, Carmen M. Lucena, Antoni Rosell, Felipe Andreo, Carmen Centeno, Carmen Montero, Iria Vidal, Lucía García-Alfonso, Antonio Bango, Miguel Ariza, Rocío Gallego‐Durán, Marta Orta, Salvador Bello, Elisa Mincholé, Alfons Torregó, Virginia Pajares, Héctor González, Aurelio Luis Wangüemert, Julio Pérez‐Izquierdo, Carlos Disdier, Blanca de Vega Sánchez, Rosa Cordovilla, Juan Alejandro Cascón, Antonio Cruz, J. Javier García-López, Luís Puente‐Maestu, Paola Benedetti, Cristina L. García-Gallo, Gema Díaz Nuevo, Silvia Aguado Ibáñez, Concepción Partida, Prudencio Díaz-Agero, Estefanía Luque Crespo, María Pavón, Francisco Venegas Páez, Enrique Cases, Raquel Martínez, Andrés Briones, Cleofé Fernández, Concepción Martín Serrano, Ana María Uribe, José Antonio García Robles,

The disposable bronchoscope is an excellent alternative to face the problem of SARS-CoV-2 and other cross infections, but the bronchoscopist's perception of its quality has not been evaluated.To evaluate the quality of the Ambu-aScope4 disposable bronchoscope, we carried out a cross-sectional study in 21 Spanish pulmonology services. We use a standardized questionnaire completed by the bronchoscopists at the end of each bronchoscopy. The variables were described with absolute and relative frequencies, ...

Tópico(s): Anesthesia and Sedative Agents

2020 - BioMed Central | Respiratory Research

Artigo Revisado por pares

Mairena Sánchez‐López, Vicente Martínez‐Vizcaíno, Antônio García‐Hermoso, David Jiménez‐Pavón, Francisco B. Ortega,

We aimed to examine (a) the construct validity and reliability of the I nternational F itness S cale ( IFIS ) in children; and (b) the association of both self‐reported and measured fitness with cardiometabolic risk. Cross‐sectional study in 1145 S panish children (9–12 years). We measured body fat, waist circumference, blood pressure, lipids, insulin, and fitness level (reported and measured). A validated cardiometabolic syndrome index was used. An age‐ and sex‐matched sample of 245 children originally ...

Tópico(s): Physical Activity and Health

2014 - Wiley | Scandinavian Journal of Medicine and Science in Sports

Artigo Acesso aberto Revisado por pares

Rubén Fuentes‐Fernández, Juán Pavón, Francisco J. Garijo,

Software modernization is critical for organizations that need cost-effective solutions to deal with the rapid obsolescence of software and the increasing demand for new functionality. This paper presents the XIRUP modernization methodology, which proposes a highly iterative process, structured into four phases: preliminary evaluation, understanding, building and migration. This modernization process is feature-driven, component-based, focused on the early elicitation of key information, and relies ...

Tópico(s): Software System Performance and Reliability

2011 - Elsevier BV | Science of Computer Programming

Artigo

David Jiménez‐Pavón, Francisco B. Ortega, Jonatan R. Ruiz, Palma Chillón, Ruth Castillo, Enrique G. Artero, David Martínez‐Gómez, Germán Vicente‐Rodríguez, Juan Pablo Rey-López, Luis Gracia‐Marco, Maria José Noriega, Luís A. Moreno, Marcela González‐Gross,

This study was to examine the influence of socioeconomic status on fitness and fatness in Spanish adolescents.A total of 1 795 adolescents (833 boys) aged 12.5-18.5 years from the AVENA study participated in this study. The following physical fitness components were assessed: muscular strength (standing long jump), speed-agility (4 × 10 m shuttle run) and cardiorespiratory fitness (20 m shuttle run). Total and central body fat was assessed using skinfold thickness and waist circumference, respectively. ...

Tópico(s): Physical Activity and Health

2010 - Wiley | International Journal of Pediatric Obesity

Artigo Revisado por pares

Noemı́ Garcı́a, Eduardo Martínez‐Abundis, Natalia Pavón, Francisco Correa, Edmundo Chávez,

In this work we examined the effect of low concentrations of Cu(2+) on the opening of the mitochondrial non-specific pore. The purpose was addressed to further contribute to the knowledge of the mechanisms that regulate the open/closed cycles of the permeability transition pore. Membrane leakage was established by measuring matrix Ca(2+) efflux and mitochondrial swelling. The experimental results indicate that Cu(2+) at very low concentrations promoted the release of accumulated Ca(2+), as well ...

Tópico(s): ATP Synthase and ATPases Research

2007 - Wiley | Cell Biology International

Artigo Revisado por pares

José Manuel Cano Pavón, Francisco Augusto Burkert Del Pino,

The analytical properties of picolinaldehyde thiosemicarbazone and selenosemicarbazone have been studied, in order to investigate the changes produced when the Se atom is substituted for the S atom. The ionization constants of both substances are very similar. The complexes of picolinaldehyde selenosemicarbazone with cations in aqueous solution are less stable, and the absorption spectra show bathochromic and hypochromic shifts. The introduction of the Se atom offers no advantages in the analytical ...

Tópico(s): Molecular Sensors and Ion Detection

1972 - Elsevier BV | Talanta

Artigo Acesso aberto Revisado por pares

Juan José Vázquez, A. Fernández Pavón, Francisco Arnalich, Antonio Gil‐Moreno, Ángela López Pastor, M S García Muñoz, JM Peña, F J Barbado,

Haematological variables in patients with eosinophilia and in healthy control subjects were studied in order to determine whether there were abnormalities in the coagulation system in patients. We found significantly elevated levels of fibrinogen, fibrin degradation products, platelet number and beta-thromboglobulin in patients. The abnormalities were not related to the causes of eosinophilia nor to its severity. This lack of correlation could be due to the heterogeneity of human peripheral blood ...

Tópico(s): Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis

1987 - Oxford University Press | Postgraduate Medical Journal

Capítulo de livro Revisado por pares

Jorge J. Gómez-Sanz, Juán Pavón, Francisco Garijo,

Tópico(s): Artificial Intelligence in Games

2000 - Springer Science+Business Media | Lecture notes in computer science

Artigo Revisado por pares

M BALAIRON, José Manuel Cano Pavón, Francisco Augusto Burkert Del Pino,

The synthesis and analytical properties of bipyridylglyoxal bis(4-phenyl-3-thiosemicarbazone) are described. The solubility, spectral characteristics and pK values are reported, as well as the absorptivity and stoichiometric ratio of metal chelates formed.

Tópico(s): Lanthanide and Transition Metal Complexes

1979 - Elsevier BV | Talanta

Artigo Acesso aberto Revisado por pares

Pablo Pavón‐Mariño, Francisco-Javier Moreno-Muro, Miquel Garrich, Marco Quagliotti, Emilio Riccardi, Albert Rafel, Andrew Lord,

Optical metro networks evolution driven by 5G requirements face enormous challenges. Network functions virtualized in the data centers spread to the metro nodes, IP, and optical technologies must cooperate to meet the metro traffic aggregation role. Multiple technological options exist, and carriers confront the need to economically assess them, benchmarked in realistic deployments. This paper gives relevant insights to this aim. We first construct a set of metro network benchmarks. A strategic ...

Tópico(s): Software-Defined Networks and 5G

2020 - Institute of Electrical and Electronics Engineers | Journal of Lightwave Technology

Artigo Acesso aberto Revisado por pares

Eduardo Blanco, Pablo Galeano, Mariana Holubiec, Juan I. Romero, Tamara Logica, Patricia Rivera, Francisco Javier Pavón, Juan Suárez, Francisco Capani, Fernando Rodrı́guez de Fonseca,

Perinatal asphyxia (PA) is an obstetric complication that strongly affects the CNS. The endocannabinoid system (ECS) is a lipid transmitter system involved in several physiological processes including synaptic plasticity, neurogenesis, memory, and mood. Endocannabinoids, and other acylethanolamides (AEs) without endocannabinoid activity, have recently received growing attention due to their potential neuroprotective functions in neurological disorders, including cerebral ischemia. In the present study, ...

Tópico(s): Neonatal and fetal brain pathology

2015 - Frontiers Media | Frontiers in Neuroanatomy

Artigo Revisado por pares

Pablo Pavón-Domínguez, Francisco J. Jiménez‐Hornero, E. Gutiérrez de Ravé,

Tópico(s): Atmospheric chemistry and aerosols

2014 - Springer Science+Business Media | Stochastic Environmental Research and Risk Assessment

Artigo Revisado por pares

Pablo Pavón-Domínguez, Francisco J. Jiménez‐Hornero, E. Gutiérrez de Ravé,

This study focuses on describing ozone patterns and estimating ozone concentrations in urban settings through the classification of an urban area into homogeneous typologies, according to hourly ozone concentrations, and the development of accurate estimation models for each typology. For these proposals, a hierarchical cluster analysis was conducted in order to define homogeneous subareas, and multiple linear regressions were subsequently applied with the aim of obtaining ozone predictions, employing ...

Tópico(s): Atmospheric chemistry and aerosols

2014 - Elsevier BV | Atmospheric Environment

Artigo Revisado por pares

Víctor Pavón Vázquez, Francisco Javier Ávila López, Arturo Gallego Segador, Roberto Espejo Mohedano,

Content and language integrated learning (CLIL) is generally recognised as a fruitful example of bilingual education. However, success in CLIL may not be straightforward and may require the establishment of coordination between content and language teachers. The aim of this study is to investigate if content and language teachers are able to plan a number of different types of coordination at the curricular level: between the foreign language (FL) subject and the content subjects, between the language ...

Tópico(s): EFL/ESL Teaching and Learning

2014 - Routledge | International Journal of Bilingual Education and Bilingualism

Artigo Acesso aberto Revisado por pares

Pablo Pavón-Domínguez, Francisco J. Jiménez‐Hornero, E. Gutiérrez de Ravé,

This paper seeks to enhance understanding of the data distribution of ground–level ozone time series by analysing their multifractal spectra. Emphasis is placed on the suitability of the box–counting and moments methods for characterizing scaling properties of ozone concentration, enabling us to describe similarities and differences inferred from the multifractal spectra by analysing various types of monitoring stations (urban, suburban and rural monitoring sites) under identical atmospheric conditions. ...

Tópico(s): Advanced Chemical Sensor Technologies

2013 - Elsevier BV | Atmospheric Pollution Research

Artigo Revisado por pares

Solveig Danielsen, Julio Centeno, Julio López, Lilliam Lezama, Gonzálo Varela, Patricia Castillo, Cony Narváez, Ivania Zeledón, Francisco Pavón, E. Boa,

Abstract Establishing a few community‐based plant clinics in Nicaragua led to a series of innovations in plant health service delivery. A grassroots experiment became a nationwide initiative involving local service providers, universities, research institutions and diagnostic laboratories. This led to the creation of a ‘National Plant Health System’ offering regular advice to farmers. The innovations were driven by a momentum for change, committed individuals, joint learning and flexibility in programme ...

Tópico(s): Banana Cultivation and Research

2011 - Wiley | Journal of International Development

Artigo Acesso aberto Revisado por pares

Esperanza Pavón, Francisco J. Osuna, María D. Alba, Laurent Delevoye,

The structure of high-charged micas, Na-n-micas (n = 2 and 4), a family of synthetic silicates with a wide range of applications, was investigated through the use of 17O solid-state NMR at natural abundance in order to preserve quantitative spectral information. The use of a very high-field and highly sensitive probehead, together with 17O NMR literature data allowed for the detection of an isolated signal at 26 ppm, assigned partially to AlOAl, as evidence of the violation of Lowenstein's rule for ...

Tópico(s): NMR spectroscopy and applications

2014 - Royal Society of Chemistry | Chemical Communications

Artigo Acesso aberto Revisado por pares

Rodrigo Prieto, Alejandro Silva‐Palacios, Pedro Rojas‐Morales, Omar Emiliano Aparicio‐Trejo, Estefany I. Medina‐Reyes, Estefani Yaquelin Hernández‐Cruz, Carlos Sánchez-Garibay, Citlaltépetl Salinas-Lara, Natalia Pavón, Francisco‐Javier Roldán, Cecilia Zazueta, Edilia Tapia, José Pedraza-Chaverrı́,

Our work evaluated cardiac function and mitochondrial bioenergetics parameters in hearts from male Wistar rats subjected to the UUO model during 28 days of progression. We measured markers of kidney damage and inflammation in plasma and renal fibrosis by histological analysis and Western blot. Cardiac function was evaluated by echocardiography and proteins involved in cardiac damage by Western blot. Oxygen consumption and transmembrane potential were monitored in cardiac mitochondria using high- ...

Tópico(s): Organ Transplantation Techniques and Outcomes

2021 - Multidisciplinary Digital Publishing Institute | Biology

Artigo Revisado por pares

José Manuel Cano Pavón, Francisco Augusto Burkert Del Pino,

The use of furfural thiosemicarbazone as a gravimetric reagent for palladium is described. The optimum analytical conditions for precipitation of the palladium complex and the effect of possible interferences have been investigated.

Tópico(s): Coordination Chemistry and Organometallics

1973 - Elsevier BV | Talanta

Artigo Acesso aberto Revisado por pares

Francisco Pavón Rabasco,

Los mayores del siglo XXI tienen planteados nuevos retos que obligan a dar, por parte de todos, nuevas respuestas. Se impone una búsqueda de ideas que puedan realmente llevarse a la práctica y ayuden a conseguir una mayor calidad de vida. Las tecnologías digitales tienen un papel preponderante en la vida cotidiana y no sólo nos ofrecen todo tipo de información o formación sino que nos sirven para comunicarnos con los demás. Presentamos algunas iniciativas para poner en contacto a los que ya peinan ...

Tópico(s): Social Sciences and Policies

2000 - Grupo Comunicar Ediciones | Comunicar

Artigo Revisado por pares

Julio Sánchez de Cos Escuín, José Abal Arca, Rosario Melchor Íñiguez, Luis Miravet Sorribes, Ana Núñez Ares, Jesús Hernández Hernández, L. García Arangüena, M. Núñez Delgado, M.J. Pavón Fernández, Gloria Francisco Corral, L. De Esteban Júlvez, M.T. González Budiño, F. Abad Cavaco, Emilio Ansótegui Barrera, F. Andreo García, M. Serra Mitjans, H. Hernández Rodríguez,

Introduction The current edition of the tumor, node and metastasis (TNM) classification of lung cancer (LC) divides the presence of metastasis (M1) into two categories: M1a and M1b, depending on its anatomical location. To assess this new classification, the survival and the M descriptors of LC patients with metastatic disease registered by the Bronchogenic Carcinoma Cooperative Group of the Spanish Society of Pneumology and Thoracic Surgery II (GCCB-S-II), were analyzed. Methods Non-small cell lung ...

Tópico(s): Lung Cancer Research Studies

2014 - Elsevier BV | Lung Cancer

Revisão Acesso aberto Revisado por pares

Francisco Javier Pavón, Antonia Serrano, Vidal Perez‐Valero, Nadine Jagerovic, Laura Hernández‐Folgado, Francisco J. Bermúdez‐Silva, Manuel Macías, Pilar Goya, Fernando Rodrı́guez de Fonseca,

The endogenous cannabinoid system plays an important modulatory role in feeding behaviour and metabolism, acting at both central and peripheral levels. Chronic administration of cannabinoid CB 1 receptor antagonists has been found to be effective in experimental obesity. However, clinically available cannabinoid receptor antagonists are inverse agonists that can target CB 1 receptors located in both central circuits regulating appetite and motivation and in peripheral organs regulating metabolism ...

Tópico(s): Pancreatic function and diabetes

2008 - Wiley | Journal of Neuroendocrinology

Artigo Revisado por pares

Patricia Rivera, Silvana Y. Romero‐Zerbo, Francisco Javier Pavón, Antonia Serrano, María Dolores López-Ávalos, Manuel Cifuentes, Jesús M. Grondona, Francisco J. Bermúdez‐Silva, Pedro Fernández‐Llebrez, Fernando Rodrı́guez de Fonseca, Juan Suárez, Margarita Pérez‐Martín,

Endocannabinoid signalling participates in the control of neurogenesis, especially after brain insults. Obesity may explain alterations in physiology affecting neurogenesis, although it is unclear whether cannabinoid signalling may modulate neural proliferation in obese animals. Here we analyse the impact of obesity by using two approaches, a high-fat diet (HFD, 60% fat) and a standard/low-fat diet (STD, 10% fat), and the response to a subchronic treatment with the cannabinoid receptor type 1 (CB1) ...

Tópico(s): Pancreatic function and diabetes

2011 - Wiley | European Journal of Neuroscience

Artigo Revisado por pares

Patricia Rivera, María Jesús Luque Rojas, Antoni Pastor, Eduardo Blanco, Francisco Javier Pavón, Antonia Serrano, Ana Crespillo, Margarita Vida, Jesús M. Grondona, Manuel Cifuentes, Francisco J. Bermúdez‐Silva, Rafael de la Torre, Fernando Rodrı́guez de Fonseca, Juan Suárez,

Abstract Diet‐induced obesity produces changes in endocannabinoid signaling ( ECS ), influencing the regulation of energy homeostasis. Recently, we demonstrated that, in high‐fat‐diet‐fed rats, blockade of CB 1 receptor by AM 251 not only reduced body weight but also increased adult neurogenesis in the hippocampus, suggesting an influence of diet on hippocampal cannabinoid function. To further explore the role of hippocampal ECS in high‐fat‐diet‐induced obesity, we investigated whether the immunohistochemical ...

Tópico(s): Pancreatic function and diabetes

2012 - Wiley | European Journal of Neuroscience