Resultados de búsqueda - ("composito" OR "composition")

  1. 201

    Complete Genome Sequence Analysis of Nocardia brasiliensis HUJEG-1 Reveals a Saprobic Lifestyle and the Genes Needed for Human Pathogenesis por Gordon, Stephen V., Vera Cabrera, Lucio, Ortiz López, Rocío, Elizondo González, Ramiro, Ocampo Candiani, Jorge

    Publicado 2013
    “…An in silico analysis of the sequence supports the conclusion that the bacteria acquired diverse genes by horizontal transfer from other soil bacteria, even from eukaryotic organisms. The genome composition reflects the evolution of bacteria via the acquisition of a large amount of DNA, which allows it to survive in new ecological niches, including humans.…”
    Enlace del recurso
    Artículo
  2. 202

    Complete Genome Sequence Analysis of Nocardia brasiliensis HUJEG-1 Reveals a Saprobic Lifestyle and the Genes Needed for Human Pathogenesis por Gordon, Stephen V., Vera Cabrera, Lucio, Ortiz López, Rocío, Elizondo González, Ramiro, Ocampo Candiani, Jorge

    Publicado 2013
    “…An in silico analysis of the sequence supports the conclusion that the bacteria acquired diverse genes by horizontal transfer from other soil bacteria, even from eukaryotic organisms. The genome composition reflects the evolution of bacteria via the acquisition of a large amount of DNA, which allows it to survive in new ecological niches, including humans.…”
    Enlace del recurso
    Artículo
  3. 203

    Nanoparticles from Cu-Zn-Al shape memory alloys physically synthesized by ion milling deposition por López Pavón, Luis Alberto, López Cuéllar, Enrique Manuel, Ballesteros, Carmen, Torres Castro, Alejandro, Martínez de la Cruz, Azael, Araújo, Carlos José de

    Publicado 2012
    “…In this research, an ion milling equipment was used to elaborate nanoparticles from Cu-Zn-Al alloys with shape memory effect. Two different compositions were used, target A: 75.22Cu-17.12Zn-7.66Al at % with an Ms of –9 °C and target B: 76.18Cu-15.84Zn-7.98Al with an Ms of 20 °C. …”
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    Artículo
  4. 204

    Estimating resistive and dielectric effects during microwave heating of Fe0.22Ni0.67Mn2.11O4 por Aguilar Garib, Juan Antonio, García, Felipe, Valdez Nava, Zarel

    Publicado 2009
    “…Permittivity and resistivity are very sensitive to chemical composition; therefore it is difficult to extrapolate properties from similar materials as can be done with thermal properties. …”
    Artículo
  5. 205
  6. 206

    Income divergence between mexican states in the 1990s: the role of skill premium por Aguayo Téllez, Ernesto

    Publicado 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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    Artículo
  7. 207

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

    Publicado 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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    Artículo
  8. 208

    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... por Quintero Vásquez, Gabriela Alejandra

    Publicado 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
  9. 209

    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... por Quintero Vásquez, Gabriela Alejandra

    Publicado 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. …”
    Enlace del recurso
    Tesis
  10. 210
  11. 211

    Preparation of nanoparticulate TiO2 containing nanocrystalline phases of anatase and brookite by electrochemical dissolution of remelted titanium components por Ortega Díaz, D., Fernández, D., Sepúlveda, S., Lindeke, R. R., Pérez Bueno, J. J., Peláez Abellán, E., Manríquez, J.

    Publicado 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). …”
    Enlace del recurso
    Artículo
  12. 212

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

    Publicado 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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    Artículo
  13. 213

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

    Publicado 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. …”
    Enlace del recurso
    Artículo
  14. 214

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

    Publicado 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. …”
    Enlace del recurso
    Artículo
  15. 215

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

    Publicado 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. …”
    Enlace del recurso
    Tesis
  16. 216

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

    Publicado 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. …”
    Enlace del recurso
    Artículo
  17. 217

    Bovine Dialyzable Leukocyte Extract IMMUNEPOTENT CRP: Evaluation of Biological Activity of the Modified Product por 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

    Publicado 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. …”
    Enlace del recurso
    Artículo
  18. 218
  19. 219

    Experimental evidence of icosahedral and decahedral packing in one-dimensional nanostructures por Velázquez Salazar, J. Jesús, Esparza, Rodrigo, Mejía Rosales, Sergio, Estrada Salas, Rubén, Ponce, Arturo, Deepak, Francis Leonard, Castro Guerrero, Carlos Fernando, Yacamán, Miguel José

    Publicado 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. …”
    Enlace del recurso
    Artículo
  20. 220

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

    Publicado 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. …”
    Enlace del recurso
    Tesis

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