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Artigo Revisado por pares

Fernando Pairicán Padilla, Rolando Álvarez Vallejos,

La hipotesis central de este articulo es que, a partir del ano 1997, comenzo una nueva forma de hacer politica en el mundo mapuche. Esta represento la continuacion de la politizacion interna de un sector del pueblo mapuche, que se llevo a la practica utilizando la violencia politica como forma de lucha para conquistar las reivindicaciones de sus tierras ancestrales

Tópico(s): Political and Social Dynamics in Chile and Latin America

2011 - Saint-Petersburg University | Izquierdas

Artigo Acesso aberto Revisado por pares

Edgar García‐Cruz, Daniel Manzur‐Sandoval, Rafael Rascón‐Sabido, Rodrigo Gopar‐Nieto, Ricardo Leopoldo Barajas‐Campos, Antonio Jordán‐Ríos, D. Martinez, Gian Manuel Jiménez‐Rodríguez, Adriana Lizeth Murillo‐Ochoa, Arturo Díaz‐Méndez, Emmanuel A. Lazcano-Díaz, Diego Araiza‐Garaygordobil, Alejandro Cabello‐López, Efrén Melano‐Carranza, Eduardo Bucio‐Reta, Francisco J. González-Ruiz, Luis A. Cota-Apodaca, Luis E. Santos-Martínez, Guillermo Fernández‐de la Reguera, Ángel Ramos‐Enríquez, Gustavo Rojas‐Velasco, Rolando J. Álvarez‐Álvarez, Francisco M. Baranda-Tovar,

Coronavirus disease 2019 (COVID-19) is characterized by severe lung involvement and hemodynamic alterations. Critical care ultrasonography is vital because it provides real time information for diagnosis and treatment. Suggested protocols for image acquisition and measurements have not yet been evaluated.This cross-sectional study was conducted at two centers from 1 April 2020 to 30 May 2020 in adult patients with confirmed COVID-19 infection admitted to the critical care unit. Cardiac and pulmonary ...

Tópico(s): Cardiac, Anesthesia and Surgical Outcomes

2020 - Wiley | Echocardiography

Revisão Acesso aberto Revisado por pares

Lluís Serra‐Majem, António Raposo, Javier Aranceta Bartrina, Gregorio Varela‐Moreiras, Caomhán Logue, Hugo Laviada‐Molina, Susana Socolovsky, Carmen Pérez-Rodrígo, Jorge Antonio Aldrete-Velasco, Eduardo Meneses Sierra, Rebeca López‐García, Adriana Ortiz‐Andrellucchi, Carmen Gómez‐Candela, Rodrigo Abreu, Erick Alexánderson, Rolando J. Álvarez‐Álvarez, Ana Luisa Álvarez Falcón, Arturo Anadón, France Bellisle, Ina Alejandra Beristain-Navarrete, Raquel Blasco Redondo, Tommaso Bochicchio, José Camolas, Fernando Cardini, Márcio Carocho, Maria do Céu Costa, Adam Drewnowski, Samuél Durán Agüero, Víctor Faùndes, Roxana Carla Fernández Condori, Pedro Pablo García‐Luna, J. C. Romero Garnica, Marcela González‐Gross, Carlo La Vecchia, Rosaura Leis, Ana M. López‐Sobaler, Miguel Agustín Madero, Ascensión Marcos, Luis Alfonso Mariscal Ramírez, Danika M. Martyn, Lorenza Mistura, Rafael Moreno Rojas, José Manuel Moreno Villares, José Antonio Niño-Cruz, M. Beatriz P.P. Oliveira, Nieves Palacios Gil-Antuñano, Lucía Pérez-Castells, Lourdes Ribas‐Barba, Rodolfo Rincón Pedrero, Pilar Riobó, Juan Rivera, Catarina Tinoco de Faria, Roxana Valdés‐Ramos, Elsa Vasco, Sandra N. Wac, Guillermo Wakida, Carmina Wanden-Berghe, Luis Xóchihua Díaz, Sergio Zúñiga-Guajardo, Vasiliki Pyrogianni, Sérgio Cunha Velho de Sousa,

International scientific experts in food, nutrition, dietetics, endocrinology, physical activity, paediatrics, nursing, toxicology and public health met in Lisbon on 2–4 July 2017 to develop a Consensus on the use of low- and no-calorie sweeteners (LNCS) as substitutes for sugars and other caloric sweeteners. LNCS are food additives that are broadly used as sugar substitutes to sweeten foods and beverages with the addition of fewer or no calories. They are also used in medicines, health-care products, ...

Tópico(s): Diet, Metabolism, and Disease

2018 - Multidisciplinary Digital Publishing Institute | Nutrients

Artigo Acesso aberto Revisado por pares

Rolando J. Álvarez‐Álvarez, Eduardo Barge‐Caballero, Sergio Leal, María J. Paniagua‐Martín, Raquel Marzoa‐Rivas, Cayetana-Barbeito Caamaño, Ángela López‐Sainz, Zulaika Grille-Cancela, Paula Blanco-Canosa, José M. Herrera-Noreña, José J. Cuenca‐Castillo, Alfonso Castro‐Beiras, María G. Crespo‐Leiro,

Background.A high frequency of venous thromboembolism (VTE) has been observed after lung, kidney, and liver transplantation.However, data about the incidence of this complication among heart transplant (HT) recipients are lacking.Methods.We analyzed the incidence, recurrence, and predisposing factors of VTE in a single-center cohort of 635 patients who underwent HT from April 1991 to April 2013.Deep venous thrombosis (DVT) and pulmonary embolism (PE) were considered as VTE episodes.Results.During a ...

Tópico(s): Heparin-Induced Thrombocytopenia and Thrombosis

2014 - Elsevier BV | The Journal of Heart and Lung Transplantation

Artigo Acesso aberto Revisado por pares

Edgar García‐Cruz, Daniel Manzur‐Sandoval, Rodrigo Gopar‐Nieto, Adriana Lizeth Murillo‐Ochoa, Gabriela Bejarano‐Alva, Gustavo Rojas‐Velasco, Rolando J. Álvarez‐Álvarez, Francisco M. Baranda-Tovar,

The current coronavirus disease 2019 (COVID-19 outbreak) demands an increased need for hospitalizations in emergency departments (EDs) and critical care units. Owing to refractory hypoxemia, prone position ventilation has been used more frequently and patients will need repeated hemodynamic assessments. Our main objective was to show the feasibility of obtaining images to measure multiple parameters with transthoracic echocardiography during the prone position ventilation.We enrolled 15 consecutive ...

Tópico(s): Ultrasound in Clinical Applications

2020 - Wiley | Journal of the American College of Emergency Physicians Open

Revisão Acesso aberto Revisado por pares

Luis A. Baeza-Herrera, Gustavo Rojas‐Velasco, Manlio F. Márquez-Murillo, Alejandra del R. Portillo-Romero, Lourdes Medina-Paz, Rolando J. Álvarez‐Álvarez, Ángel Ramos‐Enríquez, Francisco M. Baranda-Tovar,

Atrial fibrillation is the most frequent arrhythmia in the postoperative period of cardiac surgery. It is associated with heart failure, renal insufficiency, systemic embolism and increase in days of in-hospital and mortality. Atrial fibrillation in the postoperative period of cardiac surgery (FAPCC) usually appears in the first 48 h after surgery. The main mechanisms involved in the appearance and maintenance of FAPCC are the increase in sympathetic tone and the inflammatory response. The associated ...

Tópico(s): Cardiac Health and Mental Health

2019 - Elsevier BV | Archivos de cardiología de México

Artigo Acesso aberto Revisado por pares

Patrícia Fernanda Dorow, Guillermo Antonio Dávila, Gregório Varvákis, Rolando Álvarez Vallejos,

Ideas are vital for organizations because they are the source for innovation and this in turn is endlesssource of competitive advantage. The correct definition of concepts not only allows the targeting ofacademic studies, but its future application in everyday life of organizations. The overall objectiveof this article is to clarify the terms related to generation of ideas, ideation and idea management.The method used was a literature review, and later, an analysis of the concepts used by the studiessurveyed, ...

Tópico(s): Academic Research in Diverse Fields

2015 - Serviço Nacional de Aprendizagem Comercial | Navus - Revista de Gestão e Tecnologia

Artigo Acesso aberto

Rolando Álvarez Vallejos,

This article deals with the attempts of the military regime lead by the general Augusto Pinochet to penetrate workers organizations between the times of the coup d'état and the installation of the Labor plan designed by José Piñera.The article analyzes the various strategies used in order to prolong in time, the support that the regime had since the coup of 1973 from the so-called Poder Gremial, composed amongst others, by a significant faction of the labor movement who opposed Salvador Allende. ...

Tópico(s): Political and Social Dynamics in Chile and Latin America

2010 - Pontifical Catholic University of Chile | Historia

Artigo Revisado por pares

Margarita Suárez, H. Novoa, Yamila Verdecia, Estael Ochoa, Amaury Álvarez, Rolando Pérez, Roberto Martínez‐Álvarez, Dolores Molero, Carlos Seoane, N. M. Blaton, Oswald M. Peeters, Nazario Martı́n,

Unprecedented 2-iminium chloride salts of 5,8-dihydro-2H-pyrido[3,2-e][1,3]thiazines derivatives (8) were easily synthesized in one step from the corresponding o-chloroformyl-1,4-dihydropyridine (2) and thiourea. The structural study has been carried out by X-ray crystallography and theoretical calculations at the B3LYP/6-31G* levels and reveal that the new salts exhibit appropriate structural features to behave as calcium channel modulators.

Tópico(s): Synthesis and Characterization of Heterocyclic Compounds

2005 - Elsevier BV | Tetrahedron

Artigo

Mauricio Velázquez-Magaña, Gustavo Aguirre-Ramos, Rolando Álvarez-Valero, José Antonio Méndez-González, Julio González-Cófrades,

Objetivo: Determinar la prevalencia de incontinencia urinaria en mujeres mexicanas entre 20 y 80 anos que viven en el Distrito Federal. Materiales y metodos: Estudio observacional, transversal y descriptivo. Se realizo en las 16 delegaciones politicas del Distrito Federal. Se empleo el cuestionario de la consulta internacional de la incontinencia urinaria en su forma corta (ICIQ-IU-SF) para estimar la prevalencia. Resultados: El cuestionario se aplico en 800 pacientes. La prevalencia promedio fue ...

Tópico(s): Diverticular Disease and Complications

2007 - | Anales Médicos de la Asociación Médica del Centro Médico ABC

Artigo Revisado por pares

A. Rico-Zavala, M.P. Gurrola, L.G. Arríaga, Jennifer A. Bañuelos, Lorena Álvarez‒Contreras, Alessandra Carbone, A. Saccà, Fabio Matera, Rolando Pedicini, A. Álvarez, J. Ledesma‐García,

One of the main problems in electrochemical hydrogen pumps is the transport of protons, water retention and hydrogen crossover through the membrane. Considering prospects for an electrochemical hydrogen compression system, in this work, membranes based on Sulfonated Poly (Ether-Ether Ketone) (SPEEK) were made and modified with Halloysite nanotubes (HNT) and Halloysite nanotubes impregnated with phosphotungstic acid (PWA/HNT30) 15. These modified membranes were physicochemically characterized by scanning ...

Tópico(s): Supercapacitor Materials and Fabrication

2018 - Elsevier BV | Renewable Energy

Artigo Revisado por pares

Franco Cavalla, Montserrat Reyes, Rolando Vernal, Carla Álvarez, Rodolfo Paredes, J García-Sesnich, Magdalena Infante, Valeska Fariña, Ignacio Barrón, Marcela Hernández,

Introduction CXC ligand 12/stromal-derived factor-1 (CXCL12/SDF-1) is a pleiotropic chemokine that regulates the influx of a wide range of leukocytes. The aim of this study was to characterize CXCL12/SDF-1 in apical lesions (ALs) of endodontic origin, with special emphasis in associated immune cell populations. Methods In this case-control study, 29 individuals with chronic apical periodontitis and 21 healthy volunteers were enrolled. ALs and healthy periodontal ligament samples were obtained for ...

Tópico(s): Inflammatory mediators and NSAID effects

2013 - Elsevier BV | Journal of Endodontics

Artigo Revisado por pares

Mayra Tejuca, Isabel Dı́az, René Figueredo, Lourdes Roque, Fabiola Pazos, Diego Pérez Martínez, Normando Iznaga-Escobar, Rolando Pérez, Carlos Álvarez, María E. Lanio,

Sticholysin I (StI), a potent cytolysin isolated from the sea anemone Stichodactyla helianthus, was linked to the monoclonal antibody (mAb) ior C5. StI acts by forming hydrophilic pores in the membrane of the attacked cells leading to osmotic lysis. ior C5 is a murine IgG1, which recognizes the tumor associated antigen (TAA) ior C2. The cytolysin and the mAb were coupled by using the heterobifunctional cross-linking reagent sulfosuccinimidyl 4-(N-maleimidomethyl)-cyclohexane-1-carboxylate (SMCC). Two ...

Tópico(s): Hemoglobin structure and function

2004 - Elsevier BV | International Immunopharmacology

Artigo

José Antonio Méndez-González, Gustavo Aguirre-Ramos, Rolando Álvarez-Valero, Mauricio Velázquez-Magaña, Gabriel Rojas-Poceros,

Premature rupture of membranes is one of the most common and controversial problems present in obstetrics. The precision of non-invasive and available diagnostic tests limit timely treatment. The objective of this study is to compare the sensibility and specificity of crystallography and nitrazine paper with human vaginal gonadotropin chorionic hormone (hGC) to diagnose rupture. Methods: We performed a study of diagnostic test, transverse, prolective, and comparative in pregnant women with 20 weeks ...

Tópico(s): Preterm Birth and Chorioamnionitis

2007 - | Anales Médicos de la Asociación Médica del Centro Médico ABC

Artigo Acesso aberto Revisado por pares

Consuelo Anzilotti, David Swan, Bertrand Boisson, Mukta Deobagkar‐Lele, Catarina Oliveira, Pauline Chabosseau, Karin R. Engelhardt, Xijin Xu, Rui Chen, Luis Álvarez, Rolando Berlinguer‐Palmini, Katherine R. Bull, Eleanor Cawthorne, Adam P. Cribbs, Tanya L. Crockford, Tarana Singh Dang, Amy Fearn, Emma Fenech, Sarah Jill de Jong, B. Christoffer Lagerholm, S. Cindy, David Sims, Bert van den Berg, Yaobo Xu, Andrew J. Cant, Gary Kleiner, Timothy Ronan Leahy, M. Teresa de la Morena, Jennifer M. Puck, Ralph Shapiro, Mirjam van der Burg, J. Ross Chapman, John C. Christianson, Benjamin Davies, John A. McGrath, Stefan Przyborski, Mauro Santibáñez Koref, Stuart G. Tangye, Andreas Werner, Guy A. Rutter, Sergi Padilla‐Parra, Jean‐Laurent Casanova, Richard J. Cornall, Mary Ellen Conley, Sophie Hambleton,

Despite the known importance of zinc for human immunity, molecular insights into its roles have remained limited. Here we report a novel autosomal recessive disease characterized by absent B cells, agammaglobulinemia and early onset infections in five unrelated families. The immunodeficiency results from hypomorphic mutations of SLC39A7, which encodes the endoplasmic reticulum-to-cytoplasm zinc transporter ZIP7. Using CRISPR-Cas9 mutagenesis we have precisely modeled ZIP7 deficiency in mice. Homozygosity ...

Tópico(s): Viral Infections and Immunology Research

2019 - Nature Portfolio | Nature Immunology

Artigo Revisado por pares

Laurens Klerkx, Roberto Álvarez, Rolando Campusano,

Innovation intermediaries that build linkages in innovation systems are reportedly needed in many Latin American countries and other developing and emerging countries around the world that are said to have an immature innovation system. This study analyses the types of innovation intermediaries that have emerged in Chile, and how these have contributed to the development of a more mature innovation system. The findings indicate that a great diversity of innovation intermediaries has emerged and ...

Tópico(s): Innovative Approaches in Technology and Social Development

2014 - Taylor & Francis | Innovation and Development

Artigo Revisado por pares

Javiera Robles Recabarren,

... comunistas de chile en el Siglo XX, de Rolando Alvarez y Manuel Loyola (editores)

Tópico(s): Political and Social Dynamics in Chile and Latin America

2015 - Uiversidad Nacional de La Plata | Aletheia

Artigo Acesso aberto Revisado por pares

Daniel González Palma,

... relevantes de la historia contemporanea de America Latina. Rolando Alvarez reconstruye paciente y concienzudamente los fragmentos de lo ...

Tópico(s): Political and Social Dynamics in Chile and Latin America

2005 - Centre de Recherches sur les Mondes Américains | Nuevo mundo mundos nuevos

Artigo Acesso aberto Revisado por pares

Carlos Aguilar-Avelar, Brenda Soto‐García, Diana Araíz-Hernández, Juan Felipe Yee-de León, Miguel Esparza, Franco Chacón, Jesús Rolando Delgado-Balderas, Mario Moisés Álvarez, Grissel Trujillo‐de Santiago, Lauro Salvador Gómez-Guerra, Liza P. Velarde-Calvillo, Alejandro Abarca-Blanco, J. D. Wong-Campos,

Circulating tumor cells (CTCs) have the potential of becoming the gold standard marker for cancer diagnosis, prognosis and monitoring. However, current methods for its isolation and characterization suffer from equipment variability and human operator error that hinder its widespread use. Here we report the design and construction of a fully automated high-throughput fluorescence microscope that enables the imaging and classification of cancer cells that were labeled by immunostaining procedures. ...

Tópico(s): 3D Printing in Biomedical Research

2019 - Nature Portfolio | Scientific Reports

Artigo Acesso aberto Revisado por pares

Jorge Gaete,

Tópico(s): Conflict, Peace, and Violence in Colombia

2014 - University of Talca | Universum

Artigo Acesso aberto Revisado por pares

Gabriela Gomes,

En la presente obra se aborda la transformacion del municipio en los anos ochenta. Se analizan algunos de los diversos instrumentos utilizados por el regimen para seducir al mundo popular, destacandose los programas de empleo –Programa de Empleo Minimo (PEM) y Programa de Jefes de Hogar (POJH)–, las politicas habitacionales y las actividades deportivas y recreativas coordinadas por la Direccion General de Deportes y Recreacion (DIGEDER). Dichas politicas representaron algunos ambitos en los q...

Tópico(s): Public Policy and Governance

2014 - Centre de Recherches sur les Mondes Américains | Nuevo mundo mundos nuevos

Artigo Acesso aberto

Rolando Aquino, José Álvarez, Augusto Mulanovich,

Este trabajo contiene información del inventario, abundancia y estado de conservación de las especies de primates que habitan en los bosques de las Sierras de Contamana. Hemos registrado 87 grupos correspondientes a 11 especies. De ellas, Saguinus mystax Spix, Ateles chamek Humboldt, Cebus apella Linnaeus y Lagothrix poeppigii Schinz fueron las más avistadas con 14, 13, 13 y 11 grupos, respectivamente. El rango de variación del tamaño de grupo resultaron similares a los registrados para otras áreas, ...

Tópico(s): Environmental and Cultural Studies in Latin America and Beyond

2005 - National University of San Marcos | Revista Peruana de Biología

Artigo Revisado por pares

María V. Fiori-Bimbi, Patricia Álvarez, Hugo Rolando Vaca, C.A. Gervasi,

This work describes the successful performance of pectin as an eco-friendly corrosion inhibitor for mild steel in HCl solution. The inhibition mechanism is discussed considering thermodynamics of adsorption and kinetics of the electrochemical reactions. Inhibition efficiency increases with temperature while the activation energy for the corrosion rate decreases with the addition of pectin. Pectin is a mixed-type inhibitor and the mode of inhibition results from the geometric blocking effect of chemisorbed ...

Tópico(s): Hydrogen embrittlement and corrosion behaviors in metals

2014 - Elsevier BV | Corrosion Science

Artigo Revisado por pares

Lázaro Betancourt, Jeovanis Gil, Vladimir Besada, Luis Javier González, Jorge Fernández‐de‐Cossio, Liudy García Hernández, Rolando Pajón, Aniel Sánchez, Félix Alvarez, Gabrìel Padrón,

A method for the selective capture and analysis of peptides containing neither histidine nor arginine is evaluated. It is based on the reversible modification of α- and ε-amino groups of peptides and the relatively easy separation of charged and noncharged peptides by cation exchange chromatography. The simplicity of the method and the results obtained in silico and with standard proteins, anticipate the utility of the SCAPE approach for proteome analyses. Keywords: proteomics • selective-peptide- ...

Tópico(s): RNA and protein synthesis mechanisms

2005 - American Chemical Society | Journal of Proteome Research