Limpar
1.893 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Artigo Revisado por pares

Joseph B. Slowinski, Craig Guyer,

... org/10.1007/s11692-010-9098-zOmar Fiz-Palacios, Pablo Vargas, Roger Vila, Alexander S. T. Papadopulos, Juan ...

Tópico(s): Scarabaeidae Beetle Taxonomy and Biogeography

1993 - University of Chicago Press | The American Naturalist

Artigo Revisado por pares

Rafael Peris Cardells, Isabella Salvador, Palacios Pablo, A. Pérez Jiménez, Fredy López, J.A. Pérez Fernández,

Determinar la prevalencia, los datos demográficos y los estadios de abandono del tabaquismo entre los pacientes que acuden al centro de salud Estudio descriptivo transversal en 7 centros de salud del Área Asistencial 5 de la Comunidad Valenciana Se entrevistá a 3.633 personas, con una edad media de 55 ± 19 años (extremos: 14-96 años). El 61,7% eran mujeres, y el 65% consultaba por motivos médicos. El 23% eran fumadores activos (41,8 ± 15,2 años), el 17,2% ex fumadores (60,6 ± 16,2 años) y el 59,8% nunca ...

Tópico(s): Cardiovascular Health and Risk Factors

2004 - Elsevier BV | Archivos de Bronconeumología

Artigo Acesso aberto Revisado por pares

Palacios Pablo, Esther Esteban, Josh Soler, Anthony P. Martinez, Jaime Moscoso del Prado,

INTRODUCCIÓNLa ETNB fue descrita por primera vez por Ziegler en 1888 con el término tromboendocarditis.Desde entonces esta afección ha recibido diversas denominaciones tales como endocarditis marántica, endocarditis verrucosa atípica o endocarditis de Libman Sacks.En todos los casos aparece como hallazgo común un trombo estéril adherido al endocardio valvular cuya presencia se relaciona con la aparición de eventos embólicos (1).Este proceso ha sido identificado en el contexto de numerosas situaciones ...

Tópico(s): Venous Thromboembolism Diagnosis and Management

2004 - SciELO | Anales de Medicina Interna

Artigo

José Ignacio Rodríguez, José Palacios, Pablo Lapunzina,

We have studied 4 infants with oculo-auriculo-vertebral (OAV) complex or Goldenhar "syndrome" who also had severe axial anomalies, including multiple vertebral segmentation errors affecting the thoracic and the lumbar spine. One of them presented a previously unreported pattern of vertebral and rib anomalies similar to spondylocostal dysostosis. Three patients had twins, and all 4 patients had other associated non-skeletal malformations which affected the midline, i.e., cleft lip and palate, esophageal ...

Tópico(s): Ocular Disorders and Treatments

1993 - Wiley | American Journal of Medical Genetics

Artigo Acesso aberto Revisado por pares

Itzhak Levav, Robert Kohn, Iván D. Montoya, Carlos Palacio, Pablo Rozic, IDA SOLANO, Willians Valentini, Benjamín Vicente, Jorge Castro Morales, FRANCISCO ESPEJO EIGUETA, Yamini Saravanan, Cláudio Torres de Miranda, Norman Sartorius,

Background. In order to improve care for people with depressive disorders and to reduce the increasing burden of depression, the American Regional Office of the World Health Organization has launched a major region-wide initiative. A central part of this effort was directed to the primary care system where the diagnosis and treatment of depression are deficient in many countries. This study evaluated the materials developed by the World Psychiatric Association in a training program on depression ...

Tópico(s): Healthcare professionals’ stress and burnout

2004 - Cambridge University Press | Psychological Medicine

Artigo Acesso aberto Revisado por pares

Bruno Contreras‐Moreira, Bernardo Sachman-Ruíz, I. Figueroa-Palacios, Pablo Vinuesa,

Primers4clades is an easy-to-use web server that implements a fully automatic PCR primer design pipeline for cross-species amplification of novel sequences from metagenomic DNA, or from uncharacterized organisms, belonging to user-specified phylogenetic clades or taxa. The server takes a set of non-aligned protein coding genes, with or without introns, aligns them and computes a neighbor-joining tree, which is displayed on screen for easy selection of species or sequence clusters to design lineage- ...

Tópico(s): Environmental DNA in Biodiversity Studies

2009 - Oxford University Press | Nucleic Acids Research

Artigo Acesso aberto Revisado por pares

Omar Fiz-Palacios, Pablo Vargas, Roger Vila, Alexander S. T. Papadopulos, Juan José Aldasoro,

The genus Erodium is a common feature of Mediterranean-type climates throughout the world, but the Mediterranean Basin has significantly higher diversity than other areas. The aim here is to reveal the biogeographical history of the genus and the causes behind the evolution of the uneven distribution. Seventy-eight new nrITS sequences were incorporated with existing plastid data to explore the phylogenetic relationships and biogeography of Erodium using several reconstruction methods. Divergence ...

Tópico(s): Genomics and Phylogenetic Studies

2010 - Oxford University Press | Annals of Botany

Artigo Acesso aberto Revisado por pares

María G. Palacios, Pablo L. Tubaro,

We assessed the effect of beak morphology on the acoustic structure of woodcreeper (subfamily Dendrocolaptinae) songs using a comparative analysis of independent contrasts. For the song of each species, we measured the maximum and minimum frequencies, the bandwidth, and the emphasized frequency. Residuals of variation in beak length and acoustic frequencies after controlling for body size and phylogeny were calculated for each species and compared. We found a negative relationship between the residuals ...

Tópico(s): Plant and animal studies

2000 - Oxford University Press | Ornithological Applications

Artigo Acesso aberto Revisado por pares

María G. Palacios, Pablo L. Tubaro,

Abstract We assessed the effect of beak morphology on the acoustic structure of woodcreeper (subfamily Dendrocolaptinae) songs using a comparative analysis of independent contrasts. For the song of each species, we measured the maximum and minimum frequencies, the bandwidth, and the emphasized frequency. Residuals of variation in beak length and acoustic frequencies after controlling for body size and phylogeny were calculated for each species and compared. We found a negative relationship between ...

Tópico(s): Plant and animal studies

2000 - Oxford University Press | Ornithological Applications

Artigo Revisado por pares

Jesús Villar, Antonio Jiménez-García, Pilar Salvador-Egea, J. Martinez, José Manuel Nuño-Vázquez-Garza, Mario Serradilla‐Martín, Angel Gómez-Palacios, Pablo Moreno Llorente, Joaquín Ortega, Aitor de la Quintana-Basarrate,

Parathyroid carcinoma (PC) is an uncommon disease that generally is detected postoperatively and traditionally is associated with a poor prognosis. Our purpose was to evaluate treatment outcomes, prognostic factors, and usefulness of some proposed staging systems for this disease.A multicenter review of patients with surgically resected PC was performed, led by the Spanish Association of Surgery. All surgical units affiliated with its endocrine surgery section were invited to answer a questionnaire ...

Tópico(s): Genetic Syndromes and Imprinting

2014 - Elsevier BV | Surgery

Artigo Revisado por pares

Patrick Herring, Allen Hsu, Nathaniel M. Gabor, Yong Cheol Shin, Jing Kong, Tomás Palacios, Pablo Jarillo‐Herrero,

We explore the photoresponse of an ambipolar graphene infrared thermocouple at photon energies close to or below monolayer graphene's optical phonon energy and electrostatically accessible Fermi energy levels. The ambipolar graphene infrared thermocouple consists of monolayer graphene supported by an infrared absorbing material, controlled by two independent electrostatic gates embedded below the absorber. Using a scanning infrared laser microscope, we characterize these devices as a function of ...

Tópico(s): Advanced Thermodynamics and Statistical Mechanics

2014 - American Chemical Society | Nano Letters

Artigo Acesso aberto Revisado por pares

Álvaro O. Ardiles, Carolina Flores‐Muñoz, Gabriela Toro-Ayala, Ana M. Cárdenas, Adrián G. Palacios, Pablo Muñoz, Marco Fuenzalida, Juan C. Sáez, Agustín D. Martínez,

The threshold for bidirectional modification of synaptic plasticity is known to be controlled by several factors, including the balance between protein phosphorylation and dephosphorylation, postsynaptic free Ca(2+) concentration and NMDA receptor (NMDAR) composition of GluN2 subunits. Pannexin 1 (Panx1), a member of the integral membrane protein family, has been shown to form non-selective channels and to regulate the induction of synaptic plasticity as well as hippocampal-dependent learning. Although ...

Tópico(s): Biochemical effects in animals

2014 - Frontiers Media | Frontiers in Cellular Neuroscience

Artigo Acesso aberto

Gonzalo David-Rueda, Luis Miguel Constantino, Esther Cecilia Montoya, Oscar E. Ortega M., Zulma Gil-Palacio, Pablo Benavides,

El minador de la hoja del café, Leucoptera coffeella, es una de las principales plagas del cultivo del café (Coffea arabica) en la región neotropical, ocasionando pérdidas en rendimiento hasta del 80%, en países como Brasil. En Colombia ha sido poco estudiado, debido a que los ataques han sido esporádicos. Esta investigación exploratoria fue conducida con el propósito de realizar un diagnóstico del minador y sus parasitoides en el departamento de Antioquia, donde se evaluó el porcentaje de infestación ...

Tópico(s): Insect Pheromone Research and Control

2016 - | Revista Colombiana de Entomología

Artigo Acesso aberto Revisado por pares

Laura González Palacios, Pablo Corral Arroyo, Kifle Z. Aregahegn, Sarah S. Steimer, Thorsten Bartels‐Rausch, Barbara Nozière, C. George, Markus Ammann, Rainer Volkamer,

Abstract. The multiphase chemistry of glyoxal is a source of secondary organic aerosol (SOA), including its light-absorbing product imidazole-2-carboxaldehyde (IC). IC is a photosensitizer that can contribute to additional aerosol ageing and growth when its excited triplet state oxidizes hydrocarbons (reactive uptake) via H-transfer chemistry. We have conducted a series of photochemical coated-wall flow tube (CWFT) experiments using films of IC and citric acid (CA), an organic proxy and H donor in the ...

Tópico(s): Atmospheric Ozone and Climate

2016 - Copernicus Publications | Atmospheric chemistry and physics

Artigo Revisado por pares

Maria del Rosario Martínez‐Macias, Edna R. Meza‐Escalante, Denisse Serrano‐Palacios, Pablo Gortáres‐Moroyoqui, Patricia Ruiz‐Ruiz, Gabriela Ulloa‐Mercado,

Abstract BACKGROUND High cell density in cultures of microalgae is a key factor to recover biomass and extract metabolites of interest. A fed batch tubular reactor (FBTR) and semi‐continuous reactor (SCR) with f/2 Guillard Medium (f/2GM) and algal medium (AM) were evaluated. Both modes were operated under completely defined conditions to assess their effect on cell density, and lipid, protein and carbohydrate productivity of the microalgae Nannochloropsis oculata . RESULTS Results show that the FBTR promotes ...

Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics

2017 - Wiley | Journal of Chemical Technology & Biotechnology

Artigo Revisado por pares

C. Dominguez-Palacios, Pablo González-Vizuete, María A. Martín-Prats, J. Bernal,

This work analyzes the effect of conducting bands placed close to a common mode choke on the attenuation provided by an electromagnetic interference filter where the common mode choke is mounted. The main aim was to determine whether the response of the common mode choke can be modified and to clearly identify and quantify the physical mechanism responsible for the changes found in the attenuation of the common mode choke and the electromagnetic interference filter. The impact of grounded and ungrounded ...

Tópico(s): Electrostatic Discharge in Electronics

2019 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Electromagnetic Compatibility

Artigo Acesso aberto

Tanushree Dangi, Young Rock Chung, Nicole Palacio, Pablo Penaloza‐MacMaster,

In this invited article, we explain technical aspects of the lymphocytic choriomeningitis virus (LCMV) system, providing an update of a prior contribution by Matthias von Herrath and J. Lindsay Whitton. We provide an explanation of the LCMV infection models, highlighting the importance of selecting an appropriate route and viral strain. We also describe how to quantify virus-specific immune responses, followed by an explanation of useful transgenic systems. Specifically, our article will focus on ...

Tópico(s): Immunotherapy and Immune Responses

2020 - Wiley | Current Protocols in Immunology

Artigo Acesso aberto Revisado por pares

Arturo González‐Robles, Amanda Díaz‐García, Azucena García‐Palacios, Pablo Roca, Josep Antoni Ramos‐Quiroga, Cristina Botella,

Background Anxiety disorders and depression (emotional disorders) are highly prevalent mental disorders. Extensive empirical evidence supports the efficacy of cognitive behavioral therapy (CBT) for the treatment of these disorders. However, there are still some barriers related to their dissemination and implementation, which make it difficult for patients to receive these treatments, especially in public health care settings where resources are limited. Recent advances in improving CBT dissemination ...

Tópico(s): Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes

2020 - JMIR Publications | Journal of Medical Internet Research

Artigo Acesso aberto Revisado por pares

Rubén Darío Palacio, Pablo José Negret, Jorge Velásquez‐Tibatá, Andrew P. Jacobson,

Abstract Aim Species distribution maps are essential for assessing extinction risk and guiding conservation efforts. However, most come sourced as expert‐drawn range maps with known issues of accuracy or are developed with overly complex modelling procedures. Thus, data‐driven alternatives that are accessible and reliable are a welcome addition to the spatial conservation toolkit. Here, we developed a geospatial workflow to refine the distribution of a species from its extent of occurrence (EOO) ...

Tópico(s): Ecology and Vegetation Dynamics Studies

2021 - Wiley | Diversity and Distributions

Revisão Acesso aberto Revisado por pares

Paloma A. Harcha, Tamara López-López, Adrián G. Palacios, Pablo J. Sáez,

The role of Pannexin (PANX) channels during collective and single cell migration is increasingly recognized. Amongst many functions that are relevant to cell migration, here we focus on the role of PANX-mediated adenine nucleotide release and associated autocrine and paracrine signaling. We also summarize the contribution of PANXs with the cytoskeleton, which is also key regulator of cell migration. PANXs, as mechanosensitive ATP releasing channels, provide a unique link between cell migration and ...

Tópico(s): Heme Oxygenase-1 and Carbon Monoxide

2021 - Frontiers Media | Frontiers in Immunology

Artigo Acesso aberto Brasil Produção Nacional

JT Brondani, Stélio Pacca Loureiro Luna, Nadia Crosignani, José Ignacio Redondo, MM Granados, Hedie Bustamante, Carlos Palacios, Pablo E. Otero,

This study focused on the validation of the Spanish version of the UNESP-Botucatu multidimensional composite pain scale to assess postoperative pain in cats.The original scale in Portuguese was translated into Spanish by two independent translators, and summarised in one version by a third individual.The summarised version was back-translated and minor adjustments were made.The scale was reviewed by three anesthesiologists with Spanish as their first language, and the final version was submitted ...

Tópico(s): Anesthesia and Pain Management

2014 - Austral University of Chile | Archivos de medicina veterinaria

Artigo Acesso aberto Revisado por pares

Alejandro Caballero, Andrea Amalia Ramos‐Portilla, Diana Suárez-González, Francisco Serna, Zulma Gil-Palacio, Pablo Benavides,

Los insectos escama asociados a raíces son de interés económico en cultivos como el café. Aunque existen desarrollos notables en el conocimiento sobre la taxonomía alfa de tales insectos, se requiere más información sobre su diversidad. El objetivo de este trabajo fue actualizar la lista de especies de insectos escama huéspedes en raíces de café en Colombia, así como reconocer sus hormigas trofobióticas. Se recolectaron 541 muestras en nueve departamentos de Colombia; se analizaron 4.762 especímenes ...

Tópico(s): Phytoplasmas and Hemiptera pathogens

2019 - Colombian Corporation for Agricultural Research | Ciencia y Tecnología Agropecuaria

Artigo Acesso aberto

Ana Mercedes Bello-Villanueva, Jorge Palacio, Pablo Vera-Villarroel, Óscar Oviedo-Trespalacios, Melissa Rodríguez-Díaz, Karem Celis Atenas, Paula Pavéz,

This paper presents the construction and testing of the reliability of an instrument to assess attitudes and subjective norms sexual and reproductive behavior of young males. The scale was administered to 965 male students (From of 11 to 19 years) enrolled at school in the Colombian Caribbean region. This work includes two independent studies, in the first study (pilot) the questionnaire consisted of 150 items and it was reduced to 78. In the protective attitude scale (Mean= 4.10 and SD= 1.07) was ...

Tópico(s): Public Health and Social Inequalities

2014 - Pontifical Xavierian University | Universitas Psychologica

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Iukary Takenami, Maria Augusta Vasconcelos Palácio, Pablo Rafael Silveira Oliveira,

A doença do coronavírus 2019 (COVID-19) tornou-se uma pandemia alarmante para o mundo e, desde a sua primeira identificação, evocou nos chefes de estados e na população em geral rápidas respostas para o seu enfretamento. Diante desse cenário de pandemia global, a ciência (re)emergiu como uma importante ferramenta de apoio, alcançando maior visibilidade e projeção na sociedade. Considerando a importância da ciência como uma forma de produzir conhecimento sistemático e confiável, esse estudo propõe- ...

Tópico(s): Healthcare during COVID-19 Pandemic

2021 - Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências | Research Society and Development

Artigo Revisado por pares

Federico Simmross‐Wattenberg, Noemí Carranza, Cristina Palacios-Camarero, Pablo Casaseca‐de‐la‐Higuera, Miguel Ángel Martı́n-Fernández, Santiago Aja‐Fernández, Juan Ruiz‐Alzola, Carl‐Fredrik Westin, Carlos Alberola‐López,

In this paper, we describe a first step towards a collaborative extension of the well-known 3D-Slicer; this platform is nowadays used as a standalone tool for both surgical planning and medical intervention. We show how this tool can be easily modified to make it collaborative so that it may constitute an integrated environment for expertise exchange as well as a useful tool for academic purposes.

Tópico(s): Surgical Simulation and Training

2005 - Elsevier BV | Journal of Biomedical Informatics

Artigo

Humberto E. Robles,

Tópico(s): Latin American Literature Studies

1980 - | Cahiers du monde hispanique et luso-brésilien

Artigo Acesso aberto

K. Sánchez, Irene Aguilera, Pablo Palacios, P. Wahnón,

Quantum calculations based on density-functional theory are carried out with the aim of discovering the origin of the electronic properties of Ti-implanted Si. This compound is a potential kind of intermediate-band photovoltaic material. Experimental results show a donor level at a few tenths of an eV below the conduction band for this compound. This could correspond to the electronic transition from an intermediate band to the conduction band of the host silicon. The structural, energetic, and ...

Tópico(s): Silicon Nanostructures and Photoluminescence

2009 - American Physical Society | Physical Review B

Artigo Acesso aberto Revisado por pares

Pablo Palacios, Irene Aguilera, P. Wahnón,

ZnO doped with some transitions metals (ZnO:M) has several significant potential application. ZnO:Co is proposed to be used in advanced spintronic devices due to its high Curie temperature and large magnetic moments per transition metal. ZnO:Cd has potential applications in short-wavelength optoelectronic devices. This work focuses on an ab-initio study of the electronic and optical properties of ZnO:M doped with Co, and Cd. Theoretical calculations have been done with different computational codes, ...

Tópico(s): Physics of Superconductivity and Magnetism

2009 - Elsevier BV | Thin Solid Films