Tópico(s): Health, Nursing, Elderly Care
2007 - Universidade de São Paulo. Instituto de Estudos Brasileiros | Revista do Instituto de Estudos Brasileiros
... and Associated StructuresShoko M. Yamada, Daniel J. Won, Pedro B. Nava, R. Shane Tubbs, Shokei Yamada, Bergman's Comprehensive ...
Tópico(s): Hemispheric Asymmetry in Neuroscience
1946 - Wiley | The Journal of Comparative Neurology
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A new theory for describing plastic deformation in metals is presented. The approach focuses on obtaining an expression for the dislocation recovery term in terms of the energy barrier for dislocation annihilation, 〈ΔG〉. This term is obtained from the contributions of dislocation formation and migration, the statistical entropy inherent to the annihilation process, and the chemical work due to the presence of vacancies. It is shown that at high temperatures, vacancy migration features strongly in ...
Tópico(s): Microstructure and Mechanical Properties of Steels
2012 - Elsevier BV | Materials Science and Engineering A
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Expressions for obtaining the dislocation cell size and misorientation angle evolution as functions of strain, strain rate and temperature are presented. The basis of the theory is to express the cell formation energy as a set of dislocation partials, which is equated to the energy of the dislocation forest in the non-cellular material plus the dislocation slip energy to form cellular structures. The latter is expressed in terms of the statistical entropy for dislocation slip. The Young–Laplace ...
Tópico(s): Nuclear Materials and Properties
2012 - Elsevier BV | Acta Materialia
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A recently developed model for describing plasticity in FCC metals (E.I., Galindo-Nava, P.E.J., Rivera-Díaz-del-Castillo, Mater. Sci. Eng. A 543 (2012) 110–116; E.I. Galindo-Nava, P.E.J. Rivera-Díaz-del-Castillo, Acta Mater. 60 (2012) 4370–4378) has now been applied to BCC. The core of the theory is the thermostatistical description of dislocation annihilation paths, which determines the dynamic recovery rate of the material. Input to this is the energy for the formation, migration and ordering of ...
Tópico(s): Aluminum Alloys Composites Properties
2012 - Elsevier BV | Materials Science and Engineering A
Isaac Toda‐Caraballo, E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Taking the Hall–Petch relationship as a starting point, the factors contributing towards Mg alloy strengthening are analysed, and their relative importance quantified. Solid-solution strengthening is modelled employing a power-law approach. The effects of various processing schedules are reviewed, showing that these play a relatively minor role. Grain refinement effects are described employing thermodynamic and kinetic formulations via the interdependence theory approach. The effects of rare earths ...
Tópico(s): Advanced Welding Techniques Analysis
2014 - Elsevier BV | Acta Materialia
Isaac Toda‐Caraballo, E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Metals and alloys have been indispensable for technological progress, but only a fraction of the possible ternary systems (combinations of three elements) is known. Statistical inference methods combined with physical models are presented to discover new systems of enhanced properties. It is demonstrated that properties originating from atomic-level interactions can be described employing a linear regression analysis, but properties incorporating microstructural and thermal history effects require ...
Tópico(s): High Temperature Alloys and Creep
2013 - Elsevier BV | Journal of Alloys and Compounds
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A novel thermostatistical approach to describe hot deformation of unary and multicomponent FCC alloys undergoing dynamic recrystallization (DRX) is presented. The approach incorporates an additional softening effect to the Kocks–Mecking equation, which becomes active once a critical incubation strain for recrystallization is achieved. Multicomponent effects are incorporated into the equation to account for solid solution strengthening and recrystallization effects. The dislocation density evolution ...
Tópico(s): Microstructure and Mechanical Properties of Steels
2013 - Elsevier BV | International Journal of Plasticity
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Deformation twinning in HCP metals is described by a novel thermostatistical approach. Thermodynamic descriptions for the critical conditions for twin nucleation and growth are derived. These are obtained by accounting for the competition between the strain energy in the material from local stress concentrations and dislocation slip. Central to this theory is the introduction of a statistical entropy term that accounts for the energetically favourable dislocation migration paths, which determine ...
Tópico(s): Metal and Thin Film Mechanics
2013 - Elsevier BV | International Journal of Plasticity
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Grain size behaviour during discontinuous dynamic recrystallization in alloys is characterized by a theoretical approach that combines a novel thermostatistics framework, with classical grain nucleation and growth formulations. Configurational effects from dislocation migration paths control microstructure variation via an entropic effect. An alternative approach for accounting for solute–drag effects is proposed. It is shown that the drag atmosphere linearly amounts to the atomic radius of solute ...
Tópico(s): Microstructure and Mechanical Properties of Steels
2013 - Elsevier BV | Scripta Materialia
Cristina Castañón, Mary‐Carmen Amigo, José L. Bañales, Arnulfo Nava, Pedro A. Reyes,
To evaluate the ocular involvement in patients with the primary antiphospholipid syndrome.The authors performed a cross-sectional ophthalmologic study of 17 patients with the primary antiphospholipid syndrome. Retinal fluorangiography was performed in 13 patients.Visual symptoms were described by ten patients. Visual acuity was markedly decreased in five eyes. Conjunctival telangiectases and microaneurysms, in addition to single instances of bilateral episcleritis and limbal keratitis, were the ...
Tópico(s): Ocular Diseases and Behçet’s Syndrome
1995 - Elsevier BV | Ophthalmology
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A unified description for the hardness in martensitic steels for a wide range of carbon contents is presented. It is based on describing the strength contributions of lath and plate martensite, precipitates and retained austenite. Descriptions of the dislocation density in both martensitic structures are obtained in terms of carbon content and tempering conditions. It is shown that a peak in hardness usually observed for carbon contents ranging 0.6–1 wt% is a result of a compromise between the strength ...
Tópico(s): Metal Alloys Wear and Properties
2015 - Elsevier BV | Scripta Materialia
J. Cardoso, Dora Nava, Pedro R. García‐Morán, Fernando Hernández‐Sánchez, Badhin Gómez, Jorge Vázquez-Arenas, Ignacio González,
The synthesis, thermal, dielectric and conductivity properties of functionalized chitosan polymer derivatives are evaluated to determine their potential uses as a nontoxic electrolyte/separator for lithium batteries. Deacetylated chitosan (DAC) at 97% is used as a precursor to prepare two derivatives: N-propylsulfonic acid chitosan (SC), chitosan with zwitterionic pendant groups (ZWC). These derivatives increase the polar character of pure chitosan, and significantly improve its solubility. Likewise, ...
Tópico(s): Ionic liquids properties and applications
2015 - American Chemical Society | The Journal of Physical Chemistry C
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A new model describing the microstructure and strength of lath martensite is introduced. The packet and block size were found to linearly depend on the prior-austenite grain size when introducing relevant crystallographic and geometric relationships of their hierarchical arrangements. A mechanism for the lath boundary arrangement within a block is postulated to ensure complete carbon redistribution to the lath boundaries. Accordingly, the dislocation density is obtained by considering the lattice ...
Tópico(s): Microstructure and mechanical properties
2015 - Elsevier BV | Acta Materialia
Franck Tancret, E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Deforming nickel base superalloys under the γ′ solvus retards dynamic recrystallisation (DRX) by hampering grain boundary motion; this is an efficient way of refining grain size during forging and other hot working processes. A previously proposed model for describing the kinetics of DRX in nickel alloys is here further developed to account for the influence of γ′ intermetallics, allowing predicting microstructural evolution during subsolvus deformation. The model incorporates alloy composition and ...
Tópico(s): Aluminum Alloy Microstructure Properties
2016 - Elsevier BV | Materials & Design
E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
A unified description for the evolution of ε– and α′– martensite, and twinning in austenitic steels is presented. The formation of micron—scale ε and twin bands is obtained by considering the evolution of hierarchically arranged nano–sized ε and twins (embryos). The critical size and applied stress when these structures form is obtained by minimising their free energy of formation. The difference between forming an ε plate or a twin lies in the number of overlapping stacking faults in their structure. ...
Tópico(s): Metal Forming Simulation Techniques
2017 - Elsevier BV | Acta Materialia
Hanwei Fu, E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
The nucleation and growth of lenticular carbides (LCs) in bearing steels occur near to deformed ferrite bands after exposure to prolonged rolling contact fatigue (RCF). Since the first observations in 1947, a large number of attempts have been made to explain the formation mechanisms of such stress-induced microstructural alterations, but a reliable model was still not available. In this research, a novel theory is proposed to describe the carbon redistribution process during LC formation. The theory ...
Tópico(s): Mechanical stress and fatigue analysis
2017 - Elsevier BV | Acta Materialia
Hanwei Fu, Wenwen Song, E.I. Galindo-Nava, Pedro E.J. Rivera-Díaz-del-Castillo,
Martensite decay in bearing steels manifested as dark etching regions (DERs) under rolling contact fatigue (RCF) is modelled. The proposed model is established based on a dislocation-assisted carbon migration mechanism. The proposed model is capable of predicting the progress of DER formation and the corresponding mechanical property evolution with increasing number of cycles, in good agreement with the experimental data reported throughout seventy years. The effects of RCF testing conditions on DER ...
Tópico(s): Force Microscopy Techniques and Applications
2017 - Elsevier BV | Acta Materialia
Pietro Morozzi, Barbara Ballarin, Sara Arcozzi, Erika Brattich, F. Lucarelli, S. Nava, Pedro José Gómez-Cascales, J.A.G. Orza, Laura Tositti,
Mineral dust represents one of the main components of particulate matter (PM) in the Mediterranean area. The rapid identification of Saharan dust events in PM samples is desirable and required for several reasons, including their role in direct effect on climate by radiative forcing as well as their adverse effects on human health. For this purpose, the feasibility of UV–Vis Diffuse Reflectance Spectroscopy (UV–Vis DRS) is described as a rapid, inexpensive and non-destructive method of analysis of ...
Tópico(s): Air Quality Monitoring and Forecasting
2021 - Elsevier BV | Atmospheric Environment
Produção Nacional
Revisado por pares
Eliane Vasconcellos, Matildes Demétrio dos Santos,
... escritos íntimos de Carlos Drummond de Andrade e Pedro Nava, que se encontram no Arquivo Museu de Literatura ... private writings of Carlos Drummond de Andrade and Pedro Nava. These writings can be found at the Arquivo ...
Tópico(s): Education Pedagogy and Practices
2018 - UNIVERSIDADE FEDERAL DE MINAS GERAIS | O Eixo e a Roda Revista de Literatura Brasileira
George Monteiro, Mário de Andrade,
Tópico(s): Literature, Culture, and Criticism
1984 - University of Oklahoma | World Literature Today
Jonathan P. Heldt, Jason C. Smith, Kirk M. Anderson, Gideon Richards, Gautum Agarwal, Damien Smith, Amy Schlaifer, Nicholas T. Pittenger, Daniel Han, Brenton D. Baldwin, Gabriel Schroeder, D. Duane Baldwin,
... ray computeddiagnostic imagingnephrolithiasisradiation dosageAcknowledgmentsDrs. Bertha Escobar-Poni and Pedro Nava (Department of Anatomic Pathology, Loma Linda University) provided ...
Tópico(s): Radioactivity and Radon Measurements
2012 - Lippincott Williams & Wilkins | The Journal of Urology
Ícela Palma-Lara, Ana Elena Guillamón Sánchez, Elva Jiménez‐Hernández, Francisco Javier Álvarez Rodríguez, Margarita Nava-Frías, Pedro Valencia‐Mayoral, Citlatepet Salinas-Lara, Norma Velázquez‐Guadarrama, Josefina Portilla-Aguilar, Rocío Peña, Patricia Ramos-Salazar, Alejandra Contreras‐Ramos, Ana Alfaro, Ana Marı́a Espinosa, Nayelli Nájera, Gisela Gutierrez, Juan Manuel Mejίa‐Aranguré, José Arellano‐Galindo,
Tópico(s): Eosinophilic Disorders and Syndromes
2012 - Elsevier BV | Clinical Lymphoma Myeloma & Leukemia
Juan Carlos Nava Fuentes, Pedro Arenas Granados, Filomena Martins,
Despite the extent of the coastal line and the important heritage of Mexico, it was not until 2006 that the "National Environmental Policy for the Sustainable Development of Oceans and Coasts of Mexico" (NPOCM) was presented, and a formal revision was approved in 2011. After three years of its approval, it is convenient to identify the coastal problematic advancement and the progress of Integrated Coastal Zone Management (ICZM) to address them. A combination of three methodologies was used: (i) the " ...
Tópico(s): Coastal and Marine Management
2016 - Elsevier BV | Ocean & Coastal Management
Juan Carlos Nava Fuentes, Pedro Arenas Granados, Filomena Martins,
The coastal zone of the State of Campeche provides a space where converge, in a complex interaction, numerous economic activities on which the state depends. Despite its environmental, social and economic importance in the State development, its management had been made in a sectorial and unintegrated way. In 2007, a Mexican Inter-ministerial Commission for Oceans and Coasts was created. Its aim was to attend the different activities that take place in the coastal zone. In 2006 the "National Environmental ...
Tópico(s): Geography and Environmental Studies in Latin America
2018 - Elsevier BV | Ocean & Coastal Management
Produção Nacional
... mobiliza-se a correspondência ainda pouco explorada de Pedro Nava com Mário de Andrade, assim como uma parcela ...
Tópico(s): Urban and sociocultural dynamics
2019 - UNIVERSIDADE FEDERAL DO RIO DE JANEIRO | Sociologia & Antropologia
Sonia Labeau, Elsa Afonso, Julie Benbenishty, Bronagh Blackwood, Carole Boulanger, Stephen J. Brett, Silvia Calviño-Günther, Wendy Chaboyer, Fiona Coyer, Mieke Deschepper, Guy François, Patrick M. Honorè, Radmilo Janković, Ashish K. Khanna, Mireia Llauradó‐Serra, Frances Lin, Louise Rose, Francesca Rubulotta, Leif Saager, Ged Williams, Stijn Blot, Dritan Muzha, Antoni Margarit Ribas, Fernando Lipovesty, Cecilia Loudet, Fiona Coyer, Philipp Eller, Nafseen Mostafa, Patrick M. Honorè, Vanesa Mercado Telleria, Jasmina Smajić, Paula Cristina Nogueira, Khalid Mahmood Khan Nafees, Romuald Hentchoya, Louise Rose, Javiera Soledad, Frances Lin, Yenny Cardenas, A. Reyes, Alan S̆ustić, Meropi Mpouzika, Tamas Vymazal, Hanne Irene Jensen, Hernán Aguirre-Bermeo, Liivi Maddison, M. Valta, Silvia Calviño-Günther, Frank Bloos, Faustina Excel Adipa, Vasilios Koulouras, Judy Enamorado Enamorado, Zsuzsann Ágoston, Hrönn Birgisdóttir, Amit Gupta, Mohan Gurjar, Bram Kilapong, Seyed Mohammad Reza Hashemian, Ignacio Martín‐Loeches, Julie Benbenishty, Andrea Cortegiani, Kelly Fletcher, Yoshiro Hayashi, Wangari Waweru-Siika, Khalid Abidi, Sang‐Min Lee, B. Hadri, Mihails Dolgusevs, Fayez Abillama, Tomas Jovaiša, Cyril A Thix, Muhammed Elhadi, Mohd Basri Mat Nor, Shanti Ratnam, Mohd Zulfakar Mazlan, Sundaresan Maiyalagan, Luis Alejandro Sánchez‐Hurtado, Adrian Belii, Mendsaikhan Naranpurev, Prabha Gautam, Dylan W. de Lange, Rachael Parke, Rose Ilesanmi, Mirjana Shosholcheva, Antonija Petosic, Ranveig Lind, Madiha Hashmi Ffarcsi, Javier Bogarin, Aaron Mark Hernandez, Małgorzata Mikaszewska-Sokolewicz, B. A. M. Sousa, Dana Tomescu, Dorel Săndesc, Théogène Twagirumugabe, V. G. Gusarov, Maie Salem Ebaid, Radmilo Janković, Gari Slobodianiuk, Andrea Martonova, Rihard Knafelj, Mervyn Mer, Emilio Maseda, Bernardo Panka, Joerg C. Schefold, Eva Joelsson‐Alm, Konlawij Trongtrakul, Lorna Merritt-Charles, Lamia Ouanes-Besbes, Yalım Dikmen, Л. В. Згржебловська, Mark Fielding, Francesca Rubulotta, Ashish K. Khanna, Leif Saager, Ingrid von der Osten, Dritan Muzha, Alban Greca, Alma Cani, Nordian Xhindi, Genci Hyska, Antonio Margarit Ribas, Susana Pinto-Castilla, Paulo Alves, Romina Esposito, Emanuel Valgolio, John Thomas Sanchez Miñope, Antonio Abdala, Maria Ayala, Silvina Bravo, Ana Bantar, Patricia Delgado, Gustavo Badariotti, Fernando Lipovestky, Ana María Díaz, Pablo Saul, Mariano Setten, Alejandra Aucapina, Ysica Acosta, V. González, Luis Alberto Camputaro, Fernando Baccaro, Robert Villa, Ana María Díaz, Marcela Mastantuono, Emiliano Dean, Oscar Fernández Rostello, Patricia Brizuela, Julio Ricardo Bartoli, Matias Guereschi, Cristian Quiroga, Sofia Putruele, Paula Romina Villegas, Veronica Curilen, Rubén Fernández, Mariangeles Gabriela Nocheretti, Rosana Gabriela Escalante, Cecilia Loudet, Silvia Fernandez, Ana Laura González, Gustavo Andres Alvarez, Federico Iglesias, S. Jansen Chaparro, Graciela Zakalik, Gonzalo Pagella, Matías Baini, Pierina Arias Campos, Ignacio Sabbag, Armando Schmukler, Imelda Perdomo Fonseca, Gonzalo Martín Alvarez, Mário Ramirez, Fernando Velasco-Tapia, Carlos Alejandro Bascary, G. Giménez, Fernando Bertoletti, Esteban Milioto, Pablo Julio Maldonaldo Bonsignore, María Alejandra Fernández, Julie Smith, Tim Chimunda, Lorraine Thompson, Teena Maguire, Frances Lin, Wendy Chaboyer, Fiona Coyer, Stacey Watts, Marion Mitchell, Madeleine Powell, India Lye, Leanne Parsons, Nerilee Baker, Claire Reynolds, Amy Thompson, Kristy Masters, Kellie Sosnowski, Lynette Morrison, Gavin Leslie, Ramanathan Lakshmanan, Alexis Tabah, Wendy Brown, Sharon McDowell-Skaines, Andrea McLucas, Chris Smith, Mandy Tallot, Sarah Jones, Michelle Barakat‐Johnson, Thomas K. Leong, Rand Butcher, Kerrie Martin, Philipp Douschan, Dirk von Lewinski, Philipp Eller, René Schmutz, Uta Kolussi, Fatema Salman, Zainab Mahdi Ateya, Nafseen Mostafa, Koen De Decker, Niels Van Regenmortel, Anita Jans, Patricia Wijnands, Stefano Coremans, Patrick M. Honorè, David De Bels, Tanja Depuydt, Caroline Paillet, Luc‐Marie Jacquet, Walter Swinnen, Francis Hannes, M Mergeay, Stijn Van de Velde, Silvie Allaert, Pieter Hoste, Christophe Borin, Sandrine Balon, Vincent Fraipont, Patrick Biston, Nicolas De Schryver, Thierry Dugernier, Ilse Van Cotthem, Vanesa Mercado Telleria, Jasmina Smajić, Angélica Olivetto de Almeida, Sílvia Angélica Jorge, Delmiro Becker, Raysa Cristina Schmidt, Evellyn Oliveira, Aline de Oliveira Ramalho, Eliane Mazócoli, Audrey Fioretti, Elaine Barros, Letícia Faria Serpa, Suzana Maria Bianchini, Ticiane Carolina Gonçalves Faustino Campanili, Taís Pantaleao, Paulo Carlos Garcia, Ana Lucia Vitti Ronchini, Rayanne Santos, Khalid Mahmood Khan Nafees, Nurulhuda Binti A. Manap, Romuald Hentchoya, Sean M. Bagshaw, Dominic Carney, Sean M. Bagshaw, Jon Davidow, Sean M. Bagshaw, Ella Rokosh, Sean M. Bagshaw, Andréa Maria Laizner, Samantha Smith, Megan McQuirter, Betty Star Kampayana, René Favre, Martin Sills, Andréa Maria Laizner, Julie Dallaire, Andréa Maria Laizner, Cathy Becker, Sherissa Microys, B. Bowes, Jennifer LaJeunesse, Rishi Ghosh, Jacqueline Baptiste-Savoie, Rose Raizman, Sean M. Bagshaw, Gabriel Suen, Noushin Taghavi, Orla Smith, Clare Fielding, Louise Rose, J R López Canales, Pia Molina, Javiera Chaparro, Maria Idalia Sepulveda, Matias Jesús Flamm Zamorano, P..c. Túlio Monteiro de Castro e Abreu Rocha, Ximena Villanueva,
Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were ...
Springer Science+Business Media
R. Nava, B. Pawelec, Pedro Castaño, M. Consuelo Álvarez‐Galván, C.V. Loricera, J.L.G. Fierro,
Bio-liquids upgrading via catalytic hydrotreating represents an alternative route to produce liquid hydrocarbon fuels. In this paper, the upgrading of an olive oil production-derived by-product has been conducted in a down-flow fixed-bed reactor at 250 °C, 3 MPa with sulfided CoMo catalysts. The catalysts were prepared by successive impregnation (with Mo being introduced first) and supported on different mesoporous silicates (DMS-1, SBA-15, SBA-16, HMS) with the aim to study the effect of support morphology ...
Tópico(s): Catalytic Processes in Materials Science
2009 - Elsevier BV | Applied Catalysis B Environment and Energy
Investigation focused on finding qualitative and quantitative evidence of age-changes in the quantity of neural surface within Meissner corpuscles. These mechanoreceptors were studied in 53 mice (nine age-groups) ranging from 1.7 to 24 months old. Forepaw digital pads were formalin-fixed and frozen-sectioned parallel to each digit and perpendicular to the skin. Serial sections were then silver-impregnated to allow light microscopic examination of the neurites (axons) in corpuscles. From young (1.7- ...
Tópico(s): Visual perception and processing mechanisms
1985 - Wiley | The Journal of Comparative Neurology
Francisco J. Ocampo‐Torres, Héctor García–Nava, R. Durazo, Pedro Osuna, Guillermo M. Díaz Méndez, Hans C. Graber,
Tópico(s): Tropical and Extratropical Cyclones Research
2010 - Springer Science+Business Media | Boundary-Layer Meteorology