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Primary Document Acesso aberto

Alcaraz, Ramón., Barreiro, Alejo., Castillo, José María., Escalante, Félix María., Iglesias, José María, Muñoz, Manuel., Ortiz, Ramón., Payno, Manuel, Prieto, Guillermo, Ramírez, Ignacio, Saborio, Napoleón., Schiafino, Francisco., Segura, Francisco., Torrescano, Pablo Maria., Urquidi, Francisco.,

... Félix María Escalante, José María Iglesias, Manuel Muñoz, Ramón Ortiz, Manuel Payno, Guillermo Prieto, Ignacio Ramirez, Napoleon Saborío, Francisco Schiafino, Francisco Segura, Pablo María ...

0000 - Gale Group | Sabin

Artigo Acesso aberto Revisado por pares

Africa Fernández-L, Eva M. Garrido-Martín, Francisco Sanz‐Rodríguez, Jose-Ramon Ramirez, Carmelo Morales‐Angulo, Roberto Zarrabeitia, Alfonso Perez-Molino, Carmelo Bernabéu, Luisa M. Botella,

Recurrent epistaxis is the most frequent clinical manifestation of hereditary haemorrhagic telangiectasia (HHT). Its treatment is difficult. Our objective was to assess the use of tranexamic acid (TA), an antifibrinolytic drug, for the treatment of epistaxis in HHT patients and to investigate in vitro the effects of TA over endoglin and ALK-1 expression and activity in endothelial cells. A prospective study was carried out on patients with epistaxis treated with oral TA in the HHT Unit of Sierrallana ...

Tópico(s): Vascular Malformations and Hemangiomas

2007 - Thieme Medical Publishers (Germany) | Thrombosis and Haemostasis

Primary Document Acesso aberto

Alcaraz, Ramón., Barreiro, Alejo., Castillo, José María, Escalante, Félix María., Iglesias, José María, Muñoz, Manuel, Ortiz, Ramón., Payno, Manuel, Prieto, Guillermo, Ramírez, Ignacio, Saborío, Napoleón., Schiafino, Francisco., Segura, Francisco., Torrescano, Pablo María., Urquidi, Francisco., Ramsey, Albert C.,

A translation of "Apuntes para la historia de la guerra entre México y los Estados-Unidos," México, 1848, by R. Alcaraz, A. Barreiro, J.M. Castillo, F. ...

0000 - Gale Group | Sabin

Artigo Revisado por pares

Juan Ramón Ramírez Delgado, Márcia Vilarigues, Andreia Ruivo, V. Corregidor, R.C. da Silva, L.C. Alves,

Yellow decoration effects in stained glasses using silver staining were first applied in the beginning of the 14th century. The glass piece being decorated was usually painted on its side intended to be facing the exterior environment, and then fired to temperatures between 500 and 650 °C, resulting in colours ranging from pale lemon to deep orange. Stained glass fragments painted by this process and belonging to the Convento de Cristo, in Tomar, Portugal, were characterised using micro-PIXE, and ...

Tópico(s): Conservation Techniques and Studies

2011 - Elsevier BV | Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Artigo Acesso aberto Revisado por pares

Xavier Bernard, Philip Robinson, Yves Nominé, Murielle Masson, Sébastian Charbonnier, Juan Ramon Ramirez-Ramos, François Deryckère, Gilles Travé, Georges Orfanoudakis,

The E6 oncoprotein produced by high-risk mucosal HPV stimulates ubiquitinylation and proteasome-dependent degradation of the tumour suppressor p53 via formation of a trimeric complex comprising E6, p53, and E6-AP. p53 is also degraded by its main cellular regulator MDM2. The main binding site of p53 to MDM2 is situated in the natively unfolded N-terminal region of p53. By contrast, the regions of p53 implicated in the degradation by viral E6 are not fully identified to date. Here we generated a ...

Tópico(s): Ubiquitin and proteasome pathways

2011 - Public Library of Science | PLoS ONE

Carta Revisado por pares

Teresa Martı́nez, Guillermo J. Vázquez, Edna E. Aquino, Ramón Ramírez-Ronda, Iraida E. Robledo,

Carbapenemases, β-lactamases that inactivate carbapenems and most β-lactam antibiotics, are most widely known for their ability to confer resistance to β-lactams. They include serine carbapenemases, such as the widespread KPC family of enzymes, and the metallo-β-lactamases that contain the IMP, NDM and VIM enzyme families acquired by Gram-negative bacteria on transferable elements. These enzymes are almost always produced by organisms that encode at least one other β-lactamase, with as many as eight ...

Tópico(s): Pharmaceutical and Antibiotic Environmental Impacts

2012 - Elsevier BV | International Journal of Antimicrobial Agents

Artigo Revisado por pares

Gustavo Alonso, Samuel Vargas, Edmundo del Valle, Ramón Ramírez,

Nuclear power is a clean energy alternative that is already used to provide water and electricity and it helps to reduce concern of climate change. The new deployments of nuclear power are based on the Generation III reactors which come in sizes from 1100 to 1700 MWe, in addition there is a process in the very close future to provide a new generation of small and medium size reactors, less than 600 MWe. Thus, cogeneration of electricity and potable water from desalination can be based on big or ...

Tópico(s): Risk and Safety Analysis

2012 - Elsevier BV | Nuclear Engineering and Design

Artigo Acesso aberto Revisado por pares

Sergio H. Marshall, Fernando A. Gómez, Ramón Ramírez, Luis Nilo, Vitalia Henríquez,

Piscirickettsia salmonis is a bacterial fish pathogen seriously threatening the sustainability of the Chilean salmon industry. The biology and life cycle of this bacterium is not completely understood and there are no reports explaining how it survives or persists in marine environments. This work provides descriptive data of P. salmonis behavior when it is exposed to stress conditions, producing large cell aggregates closely resembling typical biofilm structures. In order to track this putative ...

Tópico(s): Vibrio bacteria research studies

2012 - Elsevier BV | Research in Microbiology

Artigo Acesso aberto Revisado por pares

Sergio H. Marshall, Ramón Ramírez, Álvaro Labra, Marisela Carmona, Cristián Muñoz,

Infectious salmon anemia (ISA) is a severe disease that affects farmed Atlantic salmon (Salmo salar), causing outbreaks in seawater in most salmon-producing countries worldwide, with particular aggressiveness in southern Chile. The etiological agent of this disease is a virus belonging to the Orthomyxoviridae family, named infectious salmon anemia virus (ISAV). Although it has been suggested that this virus can be vertically transmitted, even in freshwater, there is a lack of compelling experimental ...

Tópico(s): Microbial infections and disease research

2014 - American Society for Microbiology | Journal of Virology

Artigo Revisado por pares

Gustavo Alonso, Ramón Ramírez, Edmundo del Valle, Rogelio Castillo,

High temperature nuclear reactors offer the possibility to generate process heat that could be used in the oil industry, particularly in refineries for gasoline production. These technologies are still under development and none of them has shown how this can be possible and what will be the penalty in electricity generation to have this additional product and if the cost of this subproduct will be competitive with other alternatives. The current study assesses the likeliness of generating process ...

Tópico(s): Iron and Steelmaking Processes

2014 - Elsevier BV | Nuclear Engineering and Design

Artigo Revisado por pares

Guadalupe Correa‐Cabrera,

... S . media alleging the opposite. Related Articles Héctor Ramón Ramírez . 2009 . “.” Politics & Policy 37 (): 579 ‐ 609 . http://onlinelibrary. ...

Tópico(s): International Relations in Latin America

2013 - Wiley | Politics &Policy

Artigo Revisado por pares

Ramón Ramírez, Fernando A. Gómez, Sergio H. Marshall,

Piscirickettsia salmonis is an aggressive fish pathogen that causes Piscirickettsiosis, a systemic disease that threatens the sustainability of salmon production in Chile. To date, the infection strategies of this bacterium are poorly characterized, a Dot/Icm Type IV Secretion System homolog for intracellular multiplication and survival in macrophages is suggested. Since an invading pathogen and its host develop a complex interaction in which the pathogen strives to survive and replicate, while ...

Tópico(s): Myxozoan Parasites in Aquatic Species

2015 - Oxford University Press | FEMS Microbiology Letters

Artigo Acesso aberto Revisado por pares

Claudio A. Álvarez, Fernando A. Gómez, Luís Mercado, Ramón Ramírez, Sergio H. Marshall,

Piscirickettsia salmonis is a facultative intracellular bacterium that causes the disease called "salmon rickettsial syndrome". Attempts to control this disease have been unsuccessful, because existing vaccines have not achieved the expected effectiveness and the antibiotics used fail to completely eradicate the pathogen. This is in part the product of lack of scientific information that still lacks on the mechanisms used by this bacterium to overcome infected–cell responses and survive to induce ...

Tópico(s): Invertebrate Immune Response Mechanisms

2016 - Public Library of Science | PLoS ONE

Artigo Revisado por pares

Montiel Jiménez-Fuertes, José Ramón Ramírez-García, Jaime Ruíz-Tóvar, Gustavo Díaz García, Manuel Durán,

Tópico(s): Pancreatitis Pathology and Treatment

2016 - Elsevier BV | Cirugía Española (English Edition)

Artigo Acesso aberto Revisado por pares

Felipe Vásquez-Ponce, Sebastián Higuera‐Llantén, María S. Pavlov, Ramón Ramírez, Sergio H. Marshall, Jorge Olivares‐Pacheco,

In recent years, Antarctica has become a key source of biotechnological resources. Native microorganisms have developed a wide range of survival strategies to adapt to the harsh Antarctic environment, including the formation of biofilms. Alginate is the principal component of the exopolysaccharide matrix in biofilms produced by Pseudomonas, and this component is highly demanded for the production of a wide variety of commercial products. There is a constant search for efficient alginate-producing ...

Tópico(s): Protist diversity and phylogeny

2017 - Elsevier BV | Electronic Journal of Biotechnology

Artigo Revisado por pares

Emmanuel Priego, Gustavo Alonso, Edmundo del Valle, Ramón Ramírez,

Customary, nuclear desalination in pressurized water reactors is performed using exhaust steam from the nuclear reactor secondary circuit. In this study, nuclear desalination using the SMART reactor is assessed for several different steam extractions in the nuclear reactor; the study is performed using exergetic and thermoeconomic analyses. The assessment considers the reduction of electricity generation due to the steam extraction at different positions of the secondary circuit of the nuclear reactor ...

Tópico(s): Water-Energy-Food Nexus Studies

2017 - Elsevier BV | Desalination

Artigo Acesso aberto Revisado por pares

Ramon Ramirez-Tijerina, Carlos I. Rivera-Solorio, Jogender Singh, K.D.P. Nigam,

The laminar forced convection has been investigated for the flow of nanofluids in conventional straight tube (L = 5.34 m, dt = 10 mm) and straight microtube (L = 0.3 m, dt = 0.5 mm) under the constant temperature and constant heat flux conditions, separately. A wide range of the process parameters has been studied by varying three different type of base fluids including water, ethylene glycol and turbine oil with five different type of nanoparticles viz. Al2O3, TiO2, CuO, SiO2 and ZnO. Six different combinations ...

Tópico(s): Heat Transfer and Optimization

2018 - Multidisciplinary Digital Publishing Institute | Applied Sciences

Artigo Acesso aberto Revisado por pares

Lori M. Laffel, Thomas Danne, Georgeanna J. Klingensmith, William V. Tamborlane, Steven M. Willi, Philip Zeitler, Dietmar Neubacher, Jan Marquard, Т. П. Бардымова, Margarita Barrientos Perez, Kathleen E. Bethin, Petter Bjornstad, Ирина Аркадьевна Бондарь, Mimi Chen, Jin‐Ho Choi, Mark A. Clements, Javier Ricardo Colomar, Mark Daniels, Chaicharn Deerochanawong, Vivek S Desai, Jean-Claude G Desmangles, Robert G Dillon, Naznin Dixit, Hongwei Du, Rachel Edelen, Diego Espinoza Peralta, María Verónica Felipe Gacioppo, Tânia Ferraz, Galina Galkina, Mary Patricia Gallagher, Minu George, Edgar R. Gonzalez, Michael Gottschalk, Giancarlo Guido, Amir Ali Hassan, Eli Hershkovitz, Lina Huerta-Sáenz, Jin Soon Hwang, Jaime Orlando Ibarra Gomez, Lydia Irizarry Gonzalez, Nina Jain, David H. Jelley, Ho-Seong Kim, T. A. Kovalenko, Lori M. Laffel, Steven B. Leichter, Raphael Del Roio Liberatore, Jane Lynch, Farid H. Mahmud, Oleg Arturovich Malievskiy, Andrew Muir, Bryce Nelson, Luis Alejandro Nevarez Ruiz, Micah L. Olson, Emilia Susana Pelayo Orozco, Valentina Peterkova, Fernando Ramón Ramírez Mendoza, Konda Mohan Reddy, Henry Rodriguez, Javier Andres Saenz, Julia Samoilova, Karl‐Otfried Schwab, S. Shah, Naim Shehadeh, Ashley H. Shoemaker, Yulia Skorodok, Aleksandr Sobolev, Silvana Ernestina Solís, Shylaja Srinivasan, William V. Tamborlane, Eva Tsalikian, Ф. В. Валеева, Carl D Vance, Pedro Velasquez‐Mieyer, R. Ortiz, Olga Votyakova, Haiyan Wei, Ruth S. Weinstock, Mark D. Wheeler, Brandy Wicklow, Steven M. Willi, Kupper A. Wintergerst, Risa M. Wolf, Jamie Wood, Chandan Yaliwal, Hernán Yupanqui Lozno,

Summary Background The incidence of type 2 diabetes in young people is increasing, but treatments remain limited. We aimed to assess the efficacy and safety of an empagliflozin dosing regimen versus placebo and linagliptin versus placebo on glycaemic control in young people with type 2 diabetes. Methods In this double-blind, placebo-controlled trial done in 108 centres in 15 countries, participants with type 2 diabetes (aged 10–17 years; HbA 1c 6·5–10·5% [48–91 mmol/mol]) who had been previously treated ...

Tópico(s): Diabetes Management and Research

2023 - Elsevier BV | The Lancet Diabetes & Endocrinology

Artigo Revisado por pares

Amparo Ruiz‐Carretero, José Ramón Ramírez, Ana Sánchez‐Migallón, António de la Hoz,

An efficient and sustainable microwave-assisted approach for the one-step preparation of a wide range of 1,3,5-triazinyl mono- and bisureas has been developed, combining solvent-free conditions and microwave irradiation. In these conditions the very unreactive amino groups of 1,3,5-triazine-2,4-diamines successfully react with phenylisocyanate to yield selectively mono and bisureas. This protocol resulted in the shortest reaction times reported so far and is generally applicable for the preparation ...

Tópico(s): Microwave-Assisted Synthesis and Applications

2014 - Elsevier BV | Tetrahedron

Artigo Acesso aberto Revisado por pares

Fernando Israel Gómez‐Castro, Mario Alberto Rodríguez-Ángeles, Juan Gabriel Segovia‐Hernández, Salvador Hernández, Claudia Gutiérrez‐Antonio, Abel Briones‐Ramírez, Agustín Ramón Uribe Ramírez,

Dividing wall columns are intensified process equipment with the capacity of reducing both capital and operational costs for a given vapor–liquid separation, when compared with conventional distillation sequences. For some kinds of mixtures, distillation systems with two dividing walls have been theoretically proved to present lower energy requirements and lower total annual costs than systems with a single dividing wall. Nevertheless, the use of an additional wall may lead to operational issues ...

Tópico(s): Fault Detection and Control Systems

2013 - American Chemical Society | Industrial & Engineering Chemistry Research

Artigo Revisado por pares

J.J. Ramírez-Minguela, Agustín Ramón Uribe Ramírez, Juan Manuel Mendoza-Miranda, V. Pérez-García, J.L. Rodríguez-Muñoz, Jesús I. Minchaca-Mojica, J. Arturo Alfaro-Ayala,

In the present work, the behavior of a MOLB-type (mono-block layer built) SOFC (solid oxide fuel cells), with different electrolyte thicknesses and operating conditions at the inlet, such as mass fraction, temperature and velocity, is numerically investigated. An entropy generation analysis is carried out in the fuel cell and it is evaluated how the operating conditions and electrolyte thicknesses affect the prediction of the thermodynamic irreversibility. For this investigation a three-dimensional ...

Tópico(s): Electrocatalysts for Energy Conversion

2016 - Elsevier BV | International Journal of Hydrogen Energy

Artigo Revisado por pares

J. Arturo Alfaro-Ayala, Oscar A. López-Núñez, Fernando Israel Gómez‐Castro, J.J. Ramírez-Minguela, Agustín Ramón Uribe Ramírez, J.M. Belman-Flores, Sergio Cano-Andrade,

In this work, the optimization of a low temperature, water-in-glass, evacuated tubes solar collector is presented. The process of optimization combined the simulated annealing method and a computational fluid dynamics model. The numerical study was carried out in three dimensions, steady-state and laminar regime. A design of experiments study via computational fluid dynamics was carried out with two levels and five parameters, 25, the parameters with significance in the performance of the collector ...

Tópico(s): Photovoltaic System Optimization Techniques

2018 - Elsevier BV | Energy Conversion and Management

Artigo Revisado por pares

Amparo Ruiz‐Carretero, O. Noguez, T. Herrera, José Ramón Ramírez, Ana Sánchez‐Migallón, António de la Hoz,

A series of mono- and bistriazine derivatives were selectively prepared in high yields using microwave irradiation. Donor substituents were attached on the triazine ring, including pyrazolyl-substituted anilines and o-, m-, and p-phenylenediamine as π-conjugated spacers. This method was used to build σ-π-σ-A-σ-D systems for monotriazines and D-σ-A-σ-π-σ-A-σ-D systems for bistriazines. A study of the optoelectronic properties was performed by UV-vis and fluorescence spectroscopy and cyclic voltammetry. ...

Tópico(s): Synthesis and Characterization of Heterocyclic Compounds

2014 - American Chemical Society | The Journal of Organic Chemistry

Artigo Revisado por pares

José Ramón Ramírez, Rubén Caballero, Javier Guerra, Amparo Ruiz‐Carretero, Ana Sánchez‐Migallón, António de la Hoz,

The green synthesis of asymmetric star-shaped 2,5-dimethoxyphenylamino-1,3,5-triazine derivatives using microwave irradiation in the absence of solvent is described. The title compounds have been characterized, and their properties as donor–acceptor (D–A) systems have been studied by UV–vis, fluorescence spectroscopy and electrochemical studies. The formation of excimers and the aggregation of these star-shaped triazine systems have been demonstrated.

Tópico(s): Synthesis and Reactivity of Heterocycles

2015 - American Chemical Society | ACS Sustainable Chemistry & Engineering

Artigo Revisado por pares

Diego R. Corrochano, António de la Hoz, Ana Sánchez‐Migallón, Rubén Caballero, José Ramón Ramírez,

The design of new systems with Donor–Acceptor properties is of great interest for the construction of optoelectronic new devices. Considering the strong supramolecular interaction of triazines with graphene a series of imine-derived triazines with Donor–Acceptor properties have been designed. These compounds have been prepared in good to excellent yields (47–92%) using Green conditions, i.e. microwave irradiation in the absence of an acid catalyst. Their properties as Donor–Acceptor systems have ...

Tópico(s): Luminescence and Fluorescent Materials

2016 - Elsevier BV | Journal of Cleaner Production

Artigo Acesso aberto Revisado por pares

Aurora Higueras‐Milena Castellano, Antonio M. Sáez Romero,

... early 1980s (1981–1983) projects directed by Juan Ramón Ramírez Delgado also involved surveys of the seabed to ...

Tópico(s): Law, logistics, and international trade

2018 - Taylor & Francis | The International Journal of Nautical Archaeology

Artigo Revisado por pares

J. Arturo Alfaro-Ayala, Víctor Ayala-Ramírez, A. Gallegos-Muñoz, Agustín Ramón Uribe Ramírez,

The optimal location of one and two impellers on the central shaft of a tall stirred tank was obtained using a combination of Evolutionary Programing (EP) and Computational Fluid Dynamics (CFD) techniques; this location was evaluated through the determination of the normalized mixing time (TN) and power consumption (PC). The systems were simulated using 45̊ pitched, down-pumping, 4-blade turbine impellers (PBT). The EP method considered a small population of 6 individuals (systems) where the impeller( ...

Tópico(s): Heat Transfer and Boiling Studies

2015 - Elsevier BV | Process Safety and Environmental Protection

Artigo Revisado por pares

J.J. Ramírez-Minguela, J. Arturo Alfaro-Ayala, V.H. Rangel-Hernández, Agustín Ramón Uribe Ramírez, Juan Manuel Mendoza-Miranda, V. Pérez-García, J.M. Belman-Flores,

In this work, a comparison of the thermo-hydraulic performance and the entropy generation rate for two different types of low temperature solar collectors: flat plate solar collector (FPC) and water-in-glass evacuated tube solar collector (ETC), is addressed. The absorber area for both solar collectors were considered to be equal for a reliable comparison. The operation of the solar collectors was simulated under different volumetric flow rates and solar radiation values for the state of Guanajuato ...

Tópico(s): Photovoltaic System Optimization Techniques

2018 - Elsevier BV | Solar Energy

Artigo Revisado por pares

J.J. Ramírez-Minguela, V.H. Rangel-Hernández, J. Arturo Alfaro-Ayala, Agustín Ramón Uribe Ramírez, Juan Manuel Mendoza-Miranda, J.M. Belman-Flores, B. Ruiz-Camacho,

In this work, an energy and entropy analysis was carried out in a solid oxide fuel cell (SOFC). Four different biogas compositions were considered in the study. The biogas was obtained from different sources: (i) agricultural waste, (ii) local sludge, (iii) industrial waste and (iv) methane fermentation. The research was based on a three-dimensional CFD model that took into account the transport of mass, heat and chemical species. The electrochemical reactions of H2 and CO, the chemical reactions of ...

Tópico(s): Chemical Looping and Thermochemical Processes

2018 - Elsevier BV | International Journal of Heat and Mass Transfer