Resultados de búsqueda - (("levey" OR "level") OR ("leves" OR "levels"))*

Aportaciones a la metodología para la investigación ministerial eficaz del delito de homicidio por González Vázquez, Diana Rocío, Caballero Delgadillo, Juan Antonio

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Effect of minerals admixtures on high-performance concrete: C-S-H formation and physical-mechanical properties. por Rivera Torres, Jorge Maurilio

“…However, in most cases, the performance of a cementitious material is typically evaluated through the impact on the mechanical properties and the cost, leaving aside the durability and the effects at the microstructural level. This work intends to study the effect of supplementary cementitious materials on formation of C-S-H and the development of the concrete microstructure. …”
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Outplacement: análisis de efectividad como estrategia de reinserción laboral por Treviño Montemayor, Jorge Guadalupe, Carrizales Velázquez, Genaro Alberto

“…As well, the demand for outplacement services, its efficiency level and the benefits stemming from it are noted. …”
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Effect of minerals admixtures on high-performance concrete: C-S-H formation and physical-mechanical properties. por Rivera Torres, Jorge Maurilio

“…However, in most cases, the performance of a cementitious material is typically evaluated through the impact on the mechanical properties and the cost, leaving aside the durability and the effects at the microstructural level. This work intends to study the effect of supplementary cementitious materials on formation of C-S-H and the development of the concrete microstructure. …”
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Articulaciones entre la comunicación y la museología. Pensar los museos desde la emisión, circulación y recepción por Panozzo Zenere, Alejandra Gabriela

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Responsabilidad social empresarial una visión integral por Abreu Quintero, José Luis, Cruz Álvarez, Jesús Gerardo

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Los factores de la desigualdad en México y sus regiones: 2000-2010 por Salcido-Vega, Francisco Guillermo, Zúñiga-Espinoza, Nicolás Guadalupe

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Application of stable isotope analysis to differentiate shrimp extracted by industrial fishing or produced through aquaculture practices. por Gamboa Delgado, Julián, Molina Poveda, César, Godínez Siordia, Daniel Enrique, Villarreal Cavazos, David Alonso, Ricque Marie, Denis, Cruz Suárez, Lucía Elizabeth

“…Carbon and nitrogen stable isotope values (13CVPDB and 15NAIR) allowed clear differentiation of wild from farmed animals. 13CVPDB and 15NAIR values in shrimps collected in the open sea were isotopically enriched (−16.99‰ and 11.57‰), indicating that these organisms belong to higher trophic levels than farmed animals. 13CVPDB and 15NAIR values of farmed animals (−19.72‰ and 7.85‰, respectively) partially overlapped with values measured in animals collected in estuaries (−18.46‰ and 5.38‰, respectively). …”
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Application of stable isotope analysis to differentiate shrimp extracted by industrial fishing or produced through aquaculture practices por Gamboa Delgado, Julián, Molina Poveda, César, Godínez Siordia, Daniel Enrique, Villarreal Cavazos, David Alonso, Ricque Marie, Denis, Cruz Suárez, Lucía Elizabeth

“…Carbon and nitrogen stable isotope values (δ13CVPDB and δ15NAIR) allowed clear differentiation of wild from farmed animals. δ13CVPDB and δ15NAIR values in shrimps collected in the open sea were isotopically enriched (−16.99‰ and 11.57‰), indicating that these organisms belong to higher trophic levels than farmed animals. δ13CVPDB and δ15NAIR values of farmed animals (−19.72‰ and 7.85‰, respectively) partially overlapped with values measured in animals collected in estuaries (−18.46‰ and 5.38‰, respectively). …”
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Insights, attitudes, and perceptions about asthma and its treatment: findings from a multinational survey of patients from Latin America por Maspero, Jorge F., Jardim, José R., Aranda, Alvaro, Tassinari C., Paolo, González Díaz, Sandra Nora, Sansores, Raul H., Moreno Cantu, Jorge J., Fish, James E.

“…Questions probed respondents’ views on topics such as levels of asthma control, frequency and duration of exacerbations, and current and recent use of asthma medications. …”
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Subclinical abnormal glucose tolerance is a predictor of death in liver cirrhosis por García Compeán, Diego, Jáquez Quintana, Joel Omar, Lavalle González, Fernando Javier, González González, José Alberto, Muñoz Espinosa, Linda Elsa, Villarreal Pérez, Jesús Zacarías, Maldonado Garza, Héctor Jesús

“…Fasting plasma insulin (FPI) levels were measured, and oral glucose tolerance test (OGTT) was performed. …”
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Characterization and Sources of Aromatic Hydrocarbons (BTEX) in the Atmosphere of Two Urban Sites Located in Yucatan Peninsula in Mexico por Cerón Bretón, Julia Griselda, Cerón Bretón, Rosa María, Vivas Ucan, Francisco, Barceló Baeza, Cynthia, Espinosa Fuentes, María de la Luz, Ramírez Lara, Evangelina, Rangel Marrón, Marcela, Montero Pacheco, Jorge Alfredo, Rodríguez Guzmán, Abril, Uc Chi, Martha Patricia

“…The toluene/benzene and xylene/ethylbenzene concentration ratios indicated that BTEX levels at both sites were influenced by local and fresh emissions (vehicular traffic). …”
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Evaluation of the criteria for the interpretation of the oral glucose tolerance test in the National Mother-Child Teaching Hospital ‘‘San Bartolome’’ por Moya Salazar, J. J., Pio Dávila, L.

“…The LJ phenomenon occurred with 6.45% (alteration in glucose curve after oral load decreases plasma glucose concentration determination after 60 min and returns at relatively higher than the basal concentration levels at 180 min) and 5.19% were poorly studied, including a >110 mg/dl baseline (p = <0.05). …”
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Internacionalización de las empresas mexicanas en el sur de Estados Unidos y sus competencias globales por Blanco Jiménez, Mónica, Cruz Álvarez, Jesús Gerardo, Romo, Harriet, Tejeda Villanueva, Angélica

“…The results show that the Mexican entrepreneurs have high levels of global competencies (knowledge, skills, attitudes, and experiences) that have helped them be successful in the U.S. market. …”
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Development of a Portland Cement-Based Material with Agave salmiana Leaves Bioaggregate por Rosas Díaz, Felipe Esteban, García Hernández, David Gilberto, Mendoza Rangel, José Manuel, Terán Torres, Bernardo Tadeo, Galindo Rodríguez, Sergio Arturo, Juárez Alvarado, César Antonio

“…The objective of the research was to develop plant-based concretes with a matrix based on Portland cement and an aggregate of Agave salmiana (AS) leaves, obtained from the residues of the tequila industry that have no current purpose, as a total replacement for the calcareous aggregates commonly used in the manufacturing of mortars and whose extraction is associated with high levels of pollution, to improve their thermal properties and reduce the energy demand for air conditioning in homes. …”
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Insoluble chitosan complex as a potential adsorbent for aflatoxin B1 in poultry feed por Delgado Cedeño, Armando, Hernández Martínez, Sara Paola, Ramos Zayas, Yareellys, Marroquín Cardona, Alicia Guadalupe, Méndez Zamora, Gerardo, Franco Molina, Moisés Armides, Kawas, Jorge R.

“…In this study, chitosan was crosslinked with sodium dodecyl sulfate (SDS) to form an insoluble polymer complex that is stable at the relevant physiological pH levels. The characterization via Fourier transforms infrared spectroscopy revealed the interaction between the sulfate groups of the SDS and the amine group of chitosan (1,016 and 819 cm−1 ); this result was further confirmed by the X-ray diffraction patterns with a change in the crystalline structure of the chitosan-insoluble complex (2θ = 4.76°, 7°, and 22°). …”
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Scanning transmission electron microscopy methods for the analysis of nanoparticles por Ponce, Arturo, Mejía Rosales, Sergio, Yacamán, Miguel José

“…The STEM imaging mode has certain benefits compared with the broad-beam illumination mode; the main advantage is the collection of the information about the specimen using a high angular annular dark field (HAADF) detector, in which the images registered have different levels of contrast related to the chemical composition of the sample. …”
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Los empresarios frente al narcotráfico en México: tratamiento informativo de las reacciones empresariales ante situaciones de violencia e inseguridad Entrepreneurs against Drug T... por Muñiz, Carlos, Ramírez, Jacobo

“…Además, domina la cobertura de las acciones violentas sobre los propios empresarios, principalmente desde un encuadre noticioso de conflicto en la UE, de consecuencias económicas en EE.UU. y moralidad en México. Abstract: The levels of violence and insecurity in Mexico have increased since the implementation of the ‘war against drug cartels” in 2006. …”
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Effects of the fe/Mn Weight ratio and cooling rate on the area fractions of α-AlFeSi AND β-AlFeSi Phases in Al-7.5Si-3.75Cu-0.5Mg-0.55Fe-xMn Aluminum alloy por Hernández Rodríguez, Alejandra Nohemí, Castro Román, M. de J., Herrera Trejo, M., Belmares Perales, S., Orozco González, Pilar

“…The amount, size and shape of these iron compounds depend largely on the cooling conditions and on the chemical composition, especially the level of iron in the melt [5]. β-Al5FeSi-needles iron compounds have usually been considered most detrimental to the mechanical properties of Al-Si alloys because of the brittle features and stress concentration caused by the needle-like morphology. …”
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Trimetallic nanostructures: the case of AgPd–Pt multiply twinned nanoparticles por Khanal, Subarna, Bhattarai, Nabraj, Velázquez Salazar, J. Jesús, Bahena, Daniel, Soldano, German, Ponce, Arturo, Mariscal, Marcelo M., Mejía Rosales, Sergio, Yacamán, Miguel José

“…The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. …”
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