Search Results - ("compositores" OR ("composition" OR "compositos"))*

  1. 221
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    Income divergence between mexican states in the 1990s: the role of skill premium by Aguayo Téllez, Ernesto

    Published 2006
    “…Using microdata from the 1990 and 2000 Mexican Population Censuses, this study decomposes the recent divergence into components due to economy-wide changes in skill prices and components due to state-specific changes in the composition of workers. The study finds that the rise in the education premium hindered the progress of poor states and raised the variance of average state wages and labor earnings. …”
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    Article
  3. 223

    Highly size-controlled synthesis of Au/Pd nanoparticles by inert-gas condensation by Pérez Tijerina, Eduardo, Gracia Pinilla, Miguel Ángel, Mejía Rosales, Sergio, Ortiz Méndez, Ubaldo, Torres, A., Yacamán, Miguel José

    Published 2008
    “…The structure and size of the Au/Pd nanoparticles were determined by mass spectroscopy, and confirmed by atomic force microscopy and electron transmission microscopy measurements. The chemical composition was analyzed by X-ray microanalysis. From these measurements we confirmed that with the sputtering technique we are able to produce particles of 1, 3, and 5 nm on size, depending on the choice of the synthesis conditions. …”
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    Article
  4. 224

    Síntesis de una película de conductora de óxido de grafeno reducido y poli-3-hexiltiofeno con potencial aplicación en electrónica flexible by Cruz Escobar, Brandon Alberto

    Published 2020
    “…Este compósito fue aplicado sobre un sustrato de PET (polietiléntereftalato) obtenido de botellas de soda recicladas, promoviendo así el reciclaje. …”
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    Tesis
  5. 225

    Síntesis de una película de conductora de óxido de grafeno reducido y poli-3-hexiltiofeno con potencial aplicación en electrónica flexible by Cruz Escobar, Brandon Alberto

    Published 2020
    “…Este compósito fue aplicado sobre un sustrato de PET (polietiléntereftalato) obtenido de botellas de soda recicladas, promoviendo así el reciclaje. …”
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    Tesis
  6. 226

    Análisis de la expresión genética en la síntesis de acetato de etilo y acetato de isoamilo en Saccharomyces cerevisiae, en distintas condiciones de fermentación en el proceso cerve... by Quintero Vásquez, Gabriela Alejandra

    Published 2011
    “…However, the impact on the synthesis of acetates was different. The composition of the wort did not influence significantly in the transcription of the biosynthetic pathway analysis. …”
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    Tesis
  7. 227

    Análisis de la expresión genética en la síntesis de acetato de etilo y acetato de isoamilo en Saccharomyces cerevisiae, en distintas condiciones de fermentación en el proceso cerve... by Quintero Vásquez, Gabriela Alejandra

    Published 2011
    “…However, the impact on the synthesis of acetates was different. The composition of the wort did not influence significantly in the transcription of the biosynthetic pathway analysis. …”
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    Tesis
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    Preparation of nanoparticulate TiO2 containing nanocrystalline phases of anatase and brookite by electrochemical dissolution of remelted titanium components by Ortega Díaz, D., Fernández, D., Sepúlveda, S., Lindeke, R. R., Pérez Bueno, J. J., Peláez Abellán, E., Manríquez, J.

    Published 2020
    “…In this investigation, we present an efficient electrochemical methodology to prepare nano-particulate TiO2 having a nano-crystalline composition of 40% Anatase and 60% Brookite, without need for subsequent thermal treatments (which are typically applied to alter the amount of amorphicity). …”
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    Article
  11. 231

    Phenol degradation using glassy carbon electrodes modified with particles of Co-Mo alloy by Orozco, S.I., Blanco Jerez, Leonor María, Garza Elizondo, Mario Alberto

    Published 2013
    “…This paper reports on a study aimed to modify the surface of glassy carbon (VC) with Co-Mo nanoparticles and to determine their morphology and composition in order to evaluate their electrocatalytic activity for degrading phenol. …”
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    Article
  12. 232

    TAMAÑO Y COMPOSICIÓN CORPORAL EN NIÑOS MEXICANOS II. EL USO DEL ÍNDICE DE MASA CORPORAL PARA LA EDAD EN LA EVALUACIÓN DEL SOBREPESO by Ramírez Lópe, Erik, Valencia Juillera, Mauro E., Grijalva Haro, María Isabel

    Published 2009
    “…The geographical and socioeconomic differences among regions of Mexico may affect body composition and BMI cannot determine the true relation between body fat and fat free mass. …”
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    Article
  13. 233

    Impacto ambiental originado por los lixiviados del relleno sanitario municipal de Linares N.L. México by Cruz Vega, Carlos Ramón

    Published 2008
    “…The results revealed an existence of a hydro-geochemical evolutional pattern from a composition of bicarbonate-calcium to a bicarbonate-sulfate-calcium, although two of the wells (P1 and P2), placed down stream of the sanitary landfill showed a composition that left this pattern. …”
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  14. 234

    Impacto ambiental originado por los lixiviados del relleno sanitario municipal de Linares N.L. México by Cruz Vega, Carlos Ramón

    Published 2008
    “…The results revealed an existence of a hydro-geochemical evolutional pattern from a composition of bicarbonate-calcium to a bicarbonate-sulfate-calcium, although two of the wells (P1 and P2), placed down stream of the sanitary landfill showed a composition that left this pattern. …”
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  15. 235

    Polycrystalline thin films of antimony selenide via chemical bath deposition and post deposition treatments by Rodríguez Lazcano, Yamilet, Peña Méndez, Yolanda, Nair Maileppallil, Santhamma, Nair Padmanabhan, Karunakaran

    Published 2005
    “…The thin films deposited from chemical baths containing one or more soluble complexes of antimony, and selenosulfate initially did not show X-ray diffraction (XRD) patterns corresponding to crystalline antimony selenide. Composition of the films, studied by energy dispersive X-ray analyses indicated selenium deficiency. …”
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    Article
  16. 236

    FeS₂/ZnO core/shell nanowires: structural, optical and electrochemical properties. by Retana Betancourt, María Fernanda

    Published 2016
    “…Altough, many efforts have been done in order to find the characteristics and properties that allow the subsequent production and commercialization, hybrid solar cells represent an interesting option for this purpose. The composition in the photoactive layer is key in order to obtain high values of efficiencies and where the use of nanosized materials with one-dimensional morphology embedded into polymeric matrix allows the improvement of their optoelectronic properties. …”
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  17. 237

    Reliability of X7R Multilayer Ceramic Capacitors During High Accelerated Life Testing (HALT) by Hernández López, Ana María, Aguilar Garib, Juan Antonio, Guillemet Fritsch, Sophie, Nava Quintero, Román Jabir, Dufour, Pascal, Tenailleau, Christophe, Durand, Bernard, Valdez Nava, Zarel

    Published 2018
    “…It is known that the reliability of MLCCs depends on their composition, processing, and operating conditions. In this present work, we analyzed the lifetime of three similar X7R type MLCCs based on BaTiO3 by conducting High Accelerated Life Tests (HALT) at temperatures up to 200 ◦C at 400 V and 600 V. …”
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    Article
  18. 238

    Bovine Dialyzable Leukocyte Extract IMMUNEPOTENT CRP: Evaluation of Biological Activity of the Modified Product by Franco Molina, Moisés Armides, Santana Krimskaya, Silvia Elena, Zárate Triviño, Diana Ginette, Zapata Benavides, Pablo, Hernández Martínez, Sara Paola, Cervantes Wong, Fernanda, Rodríguez Padilla, Cristina

    Published 2021
    “…In this study, we evaluated and compared the chemical composition (bromatological analysis), physical structure (infrared spectroscopy, X-ray diffraction, SEM, and zeta potential) and biological function of the dialyzable leukocyte extracts obtained from fresh and dry bovine spleens. …”
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  19. 239
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    Experimental evidence of icosahedral and decahedral packing in one-dimensional nanostructures by Velázquez Salazar, J. Jesús, Esparza, Rodrigo, Mejía Rosales, Sergio, Estrada Salas, Rubén, Ponce, Arturo, Deepak, Francis Leonard, Castro Guerrero, Carlos Fernando, Yacamán, Miguel José

    Published 2011
    “…These nanowires, formed by the reaction of a mixture of metal salts (Au and Ag) in the presence of oleylamine, are obtained when the chemical composition is specifically Ag/Au = 3:1. The experimental images of the icosahedral nanowires have a high likelihood with simulated electron micrographs of structures formed by two or three Boerdijk Coxeter Bernal helices roped on a single structure, whereas for the decahedral wires, simulations using a model of adjacent decahedra match the experimental structures. …”
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    Article

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