Resultados de búsqueda - (("compositor" OR "composito") OR ("composites" OR ("compositosres" OR "compositores")))*

Actualidad y prospectiva del sistema de becas académicas del Gobierno del Estado de Tamaulipas, México 2015-2040 por Ramos Monsivais, Cynthia Lizeth, Ramos Sánchez, Jesús Ricardo

Enlace del recurso

Abordajes sobre el análisis de las élites políticas de México y Nuevo León por Pérez Castro, Luis Enrique, Morado Macías, César

Enlace del recurso

Micro-Scale Abrasive Wear Testing of CrN Duplex PVD Coating on Pre-Nitrided Tool Steel por Mercado Solis, Rafael David, Mata Maldonado, José Guadalupe, Quiñones Salinas, Miguel Ángel, Rodriguez de Anda, Eduardo, Servín Castañeda, Rumualdo

“…Characterizations included: phase analysis, chemical composition, metallography, microhardness, micro-scratch resistance and nano-indentation hardness. …”
Enlace del recurso

Histomorphometric and Immunohistochemical Study of Early Adaptative Response of the Vascular Wall in a Termino-Terminal Microsurgical Model of Femoral Vessels in Wistar Rat por Velázquez Gauna, Sergio Everardo, Soto Domínguez, Adolfo, Quiroga Garza, Alejandro, Reyes Hernández, Cynthia Guadalupe, Chávez Reyes, Arturo, Morales Avalos, Rodolfo, Montes de Oca Luna, Roberto, Guzmán López, Santos, Elizondo Omaña, Rodrigo Enrique

“…The samples were processed with histological technique to analyze the overall structure with hematoxylin and eosin, the composition of the vessel wall with Masson trichrome technique, the proliferating and smooth muscle cells were detected with immunohistochemistry (anti-PCNA, anti-actin and anti CD68) and the induction of apoptosis with TUNEL technique. …”
Enlace del recurso

Petrology and geochemistry of meta-ultramafic rocks in the Paleozoic Granjeno Schist, northeastern Mexico: Remnants of Pangaea ocean floor por Torres Sánchez, Sonia Alejandra, Augustsson, Carita, Jenchen, Uwe, Barboza Gudiño, José Rafael, Alemán Gallardo, Eduardo Alejandro, Ramírez Fernández, Juan Alonso, Torres Sánchez, Darío, Abratis, Michael

“…We suggest different tectonic settings for metamorphism of its serpentinite and talc-bearing rocks based on petrographic and geochemical compositions. According to the REE ratios (LaN/YbN = 0.51–20.0 and LaN/SmN = 0.72–9.1) and the enrichment in the highly incompatible elements Cs (0.1 ppm), U (2.8 ppm), and Zr (60 ppm) as well as depletion in Ba (1 – 15 ppm), Sr (1–184ppm),Pb(0.1–14ppm),andCe(0.1–1.9ppm)the rocks have mid-ocean ridge and subduction zones characteristics.TheserpentinitecontainsAl-chromite,ferrian chromiteandmagnetite.TheAl-chromiteischaracterized byCr#of0.48to0.55suggestingaMORBorigin,andCr#of 0.93 to 1.00 for the ferrian chromite indicates a prograde metamorphism.Weproposeatleasttwoserpentinization stagesoflithosphericmantlefortheultramaficrockofthe GranjenoSchist,(1)afirstinanocean-floorenvironment atsub-greenschisttogreenschistfaciesconditionsand(2) later a serpentinization phase related to the progressive replacement of spinel by ferrian chromite and magnetite atgreenschisttolowamphibolitefaciesconditionsduring regional metamorphism. …”
Enlace del recurso

Apuntes sobre el Derecho a la Cultura: una revisión al artículo 2 de la Constitución Mexicana por Santiago Arriaga, Guillermo

Enlace del recurso

Assessing Conservation Values: Biodiversity and Endemicity in Tropical Land Use Systems por Moen, Jon, Waltert, Matthias, Bobo, Kadiri Serge, Kaupa, Stefanie, Montoya, Marcela Leija, Nsanyi, Moses Sainge, Fermon, Heleen

“…While many single-taxon studies have highlighted that species with narrow geographic ranges especially suffer from habitat modification, there is no multi-taxa study available which consistently focuses on geographic range composition of the studied indicator groups. We compiled geographic range data for 180 bird, 119 butterfly, 204 tree and 219 understorey plant species sampled along a gradient of habitat modification ranging from near-primary forest through young secondary forest and agroforestry systems to annual crops in the southwestern lowlands of Cameroon. …”
Enlace del recurso

Satisfaction of an employee in a sports entity: design and validation of a measurement scale por Reyes Robles, Marina, Medina Rodríguez, Rosa Elena, Ramírez Siqueiros, María Grethel, López Walle, Jeanette M., Ceballos Gurrola, Oswaldo

“…Satisfactory values were obtained, resulting in Kaiser-Meyer-Olkin values of .91, and the Bartlett test was statistically significant with a value (χ² = 3296.01, gl = 378; p <. 001), six factors were extracted with eigen values greater than 1 and that together explain 69.08% of the total variance. the indices of the model in the confirmatory factor analysis were satisfactory: χ2 / df = 1.29, NNFI = .99, CFI = .99, and RMSEA = .03., The results of internal consistency using Cronbach's alpha index with values in this case greater than .70, composite reliability (CR) with values between .88 and .94, and the average variance index extracted (AVE), meanwhile, alsoshowed adequate values, in a range between .60 and .83. …”
Enlace del recurso

Análisis comparado de las corrientes arquitectónicas de la segunda mitad del siglo XX : funcionalismo de los años 40´s frente al regionalismo crítico de los años 80´s y 90´s (casos... por Lozano Cantú, Catalina Mayela

“…An analysis that in comparative form, shows the situation on time and specific ideas of the aspects of design in a same place like could be Monterrey city, and the advances on architectural composition. The architecture styles elected, are a very clear contrast that may be legible the comprehension of the past on time of that one in our country, that’s the fact of the election of functionalism of the 40´s and the critical regionalism of the 80´s and 90´s.…”
Enlace del recurso

Análisis comparado de las corrientes arquitectónicas de la segunda mitad del siglo XX : funcionalismo de los años 40´s frente al regionalismo crítico de los años 80´s y 90´s (casos... por Lozano Cantú, Catalina Mayela

“…An analysis that in comparative form, shows the situation on time and specific ideas of the aspects of design in a same place like could be Monterrey city, and the advances on architectural composition. The architecture styles elected, are a very clear contrast that may be legible the comprehension of the past on time of that one in our country, that’s the fact of the election of functionalism of the 40´s and the critical regionalism of the 80´s and 90´s.…”
Enlace del recurso

Las estrategias de sobrevivencia de los pobres: Un repaso a su estudio en las ciencias sociales (concepto, perspectivas teóricas y acciones que implican) por Arredondo Velázquez, Martha, González Alcalá, José Ricardo

“…Finally, lists and ranks the practical actions (economic –wage labor and self-employment, not economic or household –changes in household size and composition, readjustment in the division of labor, and restrictive) involved in the content of that concept.  …”
Enlace del recurso

Actitudes y construcción de la agenda pública por Carreón Guillén, Javier, Henández Valdés, Jorge, Morales Flores, María de Lourdes, Rivera Varela, Bertha, Limón Domínguez, Gerardo Arturo, García Lirios, Cruz

“…For this purpose, we review the theories of attitudes and contrasted its principles with the latest findings regarding the formation, function and composition of attitudes. This exercise will discuss the influence of media on citizens’ opinions through attitudes toward the information generated by electronic devices and cyber in the current technological and democratic. …”
Enlace del recurso

El retrato puesto en escena: Ovillejos de Sor Juana Inés de la Cruz y la estética manierista por Ruiz Ramírez, Víctor Alejandro

Enlace del recurso

Migración al Chile neoliberal: ciudadanía, arraigo y autonomía por Rodríguez Torrent, Juan Carlos, Vargas Callegari, Rodrigo

Enlace del recurso

La construcción del paisaje costero de Sisal, Yucatán (1807-1990): una aproximación desde la ecología histórica por Torales Ayala, Gabriel de Jesús

Enlace del recurso

Estudio de bioactividad en aleaciones Co-Cr con superficies foliculares por Almada Almanza, Vicente Antonio

“…Con el afán de promover una mejor fijación a largo plazo de las prótesis e implantes en general, se han empleado diferentes diseños y/o arreglos de superficies porosas elaboradas en biomateriales como metales, cerámicos, polímeros y compositos. Las técnicas para lograrlo son muy diversas, pasando de las más sencillas (sinterización), hasta las más avanzadas como el uso del rayo laser. …”
Enlace del recurso

Estudio de bioactividad en aleaciones Co-Cr con superficies foliculares por Almada Almanza, Vicente Antonio

“…Con el afán de promover una mejor fijación a largo plazo de las prótesis e implantes en general, se han empleado diferentes diseños y/o arreglos de superficies porosas elaboradas en biomateriales como metales, cerámicos, polímeros y compositos. Las técnicas para lograrlo son muy diversas, pasando de las más sencillas (sinterización), hasta las más avanzadas como el uso del rayo laser. …”
Enlace del recurso

Recent advances in the application of stable isotopes as nutritional tools in aquaculture por Gamboa Delgado, Julián, Peña Rodríguez, Alberto, Martínez Rocha, Luis, Villarreal Cavazos, David Alonso, Nieto López, Martha Guadalupe, Tapia Salazar, Mireya, Ricque Marie, Denis, Cruz Suárez, Lucía Elizabeth, Le Vay, Lewis, Fernández Díaz, Catalina, Cañavate, José Pedro, Ponce, Marian, Zerolo, Ricardo, Manchado, Manuel

“…In a third, multidisciplinary experiment, Senegalese sole (Solea senegalensis) larvae were used as a model to evaluate the effect of different larval feeding regimes on (1) trypsinogen gene expression (ssetryp1), (2) trypsin and chymotrypsin activities and (3) changes in stable isotope composition to estimate the assimilation of dietary carbon from the larval diets.…”
Enlace del recurso

Aluminosilicates as a Double-Edged Sword: Adsorption of Aflatoxin B1 and Sequestration of Essential Trace Minerals in an In Vitro Gastrointestinal Poultry Model por Hernández Martínez, Sara Paola, Delgado Cedeño, Armando, Ramos Zayas, Yareellys, Franco Molina, Moisés Armides, Méndez Zamora, Gerardo, Marroquín Cardona, Alicia Guadalupe, Kawas Garza, Jorge R.

“…X-ray diffraction analysis showed that C-1 is a montmorillonite, C-2 is a beidellite, C-3 is a beidellite-Ca-montmorillonite, and C-4 is a clinoptilolite. The elemental compositions of the clays showed alumina, silica, iron, calcium, and sodium contents. …”
Enlace del recurso

Caracterización y restauración ecológica en el matorral espinoso tamaulipeco del noreste de México por Pequeño Ledezma, Miguel Angel

“…In another area of the Tamaulipan thornscrub, the composition, structure and plant diversity of two regenerated areas after livestock activities were evaluated, in which it is concluded that the plant community of the Tamaulipan thorny scrub has a medium term regeneration capacity after livestock activity, presenting a wealth of species and diversity iii very similar to a mature community. …”
Enlace del recurso