Resultados de búsqueda - ( (factores OR tutorial) OR ( (alto OR have) OR ((factos OR fact) OR acta) ))*

Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

“…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
Enlace del recurso

Mathematical formulations and optimization algorithms for solving rich vehicle routing problems. por Palomo Martínez, Pamela Jocelyn

“…Contributions: The main contributions of this thesis are: • The introduction of the bi-objective TPP with deliveries since few bi-objective versions of the TPP have been studied in the literature. Furthermore, to the best of our knowledge, there is only one more work that takes into account deliveries in a TPP. • The design and implementation of a hybrid heuristic based on relinked local search and VNS to solve the bi-objective TPP with deliveries. …”
Enlace del recurso

Clinical characterization of acute and convalescent illness of confirmed chikungunya cases from Chiapas, S. Mexico: A cross sectional study por Roques, Pierre, Danis Lozano, Rogelio, Díaz González, Esteban Eduardo, Trujillo Murillo, Karina del Carmen, Caballero Sosa, Sandra, Sepúlveda Delgado, Jesús, Malo García, Iliana Rosalía, Canseco Ávila, Luis Miguel, Salgado Corsantes, Luis Manuel, Domínguez Arrevillaga, Sergio, Torres Zapata, Raúl, Gómez Cruz, Omar, Fernández Salas, Ildefonso

“…Methodology/Principal findings We collected blood samples from patients suspected of having chikungunya fever (CHIKF) who presented to Clinical Hospital ISSSTE Dr. …”
Enlace del recurso

Clonación y expresión del ADNc que codifica para la enzima endo-β-1,4-glucanasa de Coptotermes formosanus en Pichia pastoris por Jara Ochoa, Javier Omar

“…Recombinant cellulases could be useful in a bioethanol production program based on sugar, it could also have another applications such as the treatment of products in fermentation industry; besides provide extra information that could facilitate cellulolytic understanding in termites and therefore to the development of biopesticides.…”
Enlace del recurso

A mutation in the voltage-gated sodium channel gene associated with pyrethroid resistance in Latin American Aedes aegypti por Saavedra Rodríguez, Karla Lizet, Urdaneta Marquez, Ludmel, Rajatileka, S., Flores Suárez, Adriana Elizabeth, Fernández Salas, Ildefonso, Bisset, J., Rodríguez, Mario Henry, Mccall, P. J., Donnelly, M. J., Ranson, Hilary, Hemingway, Janet, Black, William C.

“…A transition in the third position of Iso1011 encoded a Met1011 replacement and a transversion in the second position of Val1016 encoded a Gly1016 replacement. We have screened this same region in 1318 mosquitoes in 32 additional strains; 30 from throughout Latin America. …”
Enlace del recurso

Fire response of the endangered Pinus culminicola stands after 18 years in Cerro El Potosí, northeast Mexico por Arévalo Sierra, José Ramón, Estrada, Eduardo, Encina, Juan A., Villarreal, José A., Escobedo, Job R., Morales, Yaretzi, Cantú, Israel, González Rodríguez, Humberto, Uvalle Sauceda, José Isidro

“…Competing interests: The authors have declared that no competing interests exist. …”
Enlace del recurso

Winter diet of the long-eared owl Asio otus (Strigiformes: Strigidae) in the grasslands of Janos, Chihuahua, Mexico por González Rojas, José Ignacio, Padilla Rangel, Hernaldo, Ruvalcaba Ortega, Irene, Cruz Nieto, Miguel A., Canales del Castillo, Ricardo, Guzmán Velasco, Antonio

“…This nocturnal species is considered to be extremely secretive, and poorly known in the Great Plains of the United States and Canada, as well as to México, where no previous studies on its diet have been conducted. Findings: We analyzed 120 pellets collected during January 2007 in roosts in a 2–3 m height mesquite scrub within a grassland area of Reserva Ecológica El Uno, located in the Natural Protected Area Janos. …”
Enlace del recurso

Comparación de la resistencia aeróbica entre jóvenes futbolistas mexicanos de una escuela de élite y no élite por Ródenas Cuenca, Luis Tomás, Pérez Cano, Roque, Medina Villanueva, Samantha, Vanegas Farfano, Minerva

“…In conclusion, elite players from a cadet level school have better numbers or values in regard to aerobic endurance than a nonelite school, in addition they showed greater improvements during the year.…”
Enlace del recurso

Synthesis and characterization of luminescent compounds of Sn IV with potential application as cellular marker in vitro por Pérez Pérez, Eduardo Gabriel

“…Recently it has been reported that organo-tin compounds have been used to stain cancer cells and also modulate the cytotoxicity modifying strategically the substituents that is bonded to tin. …”
Enlace del recurso

Relación entre los enfoques y las concepciones de enseñanza en profesores universitarios por Cuevas Gutiérrez, Ana Irene

“…This is incongruent, because the way in which professors say they teach does not agree with their conception of what teaching is, so they don’t link what the conceptualize by teaching with the actions they do in the classroom, and the same elements do not have a relationship with gender, field of work and years of experience. …”
Enlace del recurso

Gestión de la seguridad de las empresas prestadoras de servicio logístico en Colombia por Duran Romero, Danid Esther, Lechuga Cardozo, Jorge Isaac, Guisao Giraldo, Erica Yaneth

“…Thus, it was evidenced that: 1. logistic operators recognize as security risks, the theft, piracy and contraband; 2. 77% of the companies surveyed have a notion of ISO 28000; 3. The total number of respondents is certified in the BASC Standard, but only 43% certified in ISO 28000, the operators point out that the involvement with suppliers and the cultural change in the organization are obstacles to the implementation of ISO 28000. …”
Enlace del recurso

Cocodrilos marinos del jurásico tardío de la formación la casita en Coahuila y Nuevo León, México: dos casos de estudio por Velasco Segura, Jorge Antonio

“…The second specimen described (UANL-FCT-R13) corresponds to a Late Kimmeridgian Metriorhynchid from South-Central Nuevo León state. Both specimens have been rescued from Upper Jurassic sediments of La Casita Formation. …”
Enlace del recurso

Health-Related Quality of Life in leukemia Survivors of Allogeneic Hematopoietic Stem Cell Transplantation Employing the Mexican Reduced-Intensity Conditioning por González Ramírez, Mónica P., Miravete Lagunes, Karla, Gómez de León, Andrés, Ponce de León, Sergio, Tenorio Rojo, Andrea P., Martagón Herrera, Nora A., Hérnandez Reyes, Jésus A., García Villaseñor, Arturo, Burguette, Esteban, Vallejo Villalobos, María Fernanda, Ruiz Delgado, Guillermo José, Gómez Almaguer, David, Ruiz Argüelles, Guillermo José

“…Results: Allografted patients were found to have a slightly better mental component summary than the reference subjects (53.23 vs. 48.66 points; p = 0.01), whereas the physical component summary did not show a difference (54.53 vs. 52.05 points; p = 0.59). …”
Enlace del recurso

Susceptibility of Larvae of Chrysomya rufifacies (Diptera: Calliphoridae) to the Insecticides Methyl Parathion and Carbofuran, 2011 por Solís Esquivel, Elton, Flores Suárez, Adriana Elizabeth, Caballero Quintero, Adolfo, Hernández Luna, Carlos Eduardo, Mercado Hernández, Roberto, Rodríguez Castro, Violeta Ariadna, Quiroz Martínez, Humberto

“…In the archives of the Attorney General of the State of Nuevo Leon, there is abundant evidence that criminals have used organophosphate and carbamate insecticides to poison persons and cause death. …”
Enlace del recurso

Evaluation of IL-12 and CXCL-10 in patients with hepatitis C, non-alcoholic fatty liver disease and liver damage for alcohol consumption por Hernández Santillan, M., Martínez Castillo, M., Medina Avila, Z., Lemus Peña, M, Montes de Oca Ángeles, D, Hernández Barragán, A., Pérez Hernández, J. L., Higuera de la Tijera, María de Fátima, Santana Vargas, D., Cordero Pérez, Paula, Muñoz Espinoza, Linda, Córdova Gallardo, J., Kershenobich Stalnikowitz, David, Gutiérrez Reyes, Gabriela

“…Conclusions: IL-12 and CXCL-10 have an important role in alcohol-induced liver disease, confirming their contribution to inflammation, being evident CXCL-10 in advanced stages of the disease, by stimulating and favoring the migration of immune cells to the damage sites. …”
Enlace del recurso

Desplazados climáticos en el contexto neoliberal: un ciclo de degradación socioambiental por Guerrero Guerra, Osvaldo, Guillen Labastida, Alejandra

“…Through an exploratory study on how environmental and climatic displacements have occurred within the context of neoliberal capitalism in which our globalized world finds itself. …”
Enlace del recurso

Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

“…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
Enlace del recurso

Mathematical formulations and optimization algorithms for solving rich vehicle routing problems. por Palomo Martínez, Pamela Jocelyn

“…Contributions: The main contributions of this thesis are: • The introduction of the bi-objective TPP with deliveries since few bi-objective versions of the TPP have been studied in the literature. Furthermore, to the best of our knowledge, there is only one more work that takes into account deliveries in a TPP. • The design and implementation of a hybrid heuristic based on relinked local search and VNS to solve the bi-objective TPP with deliveries. …”
Enlace del recurso

Clonación y expresión del ADNc que codifica para la enzima endo-β-1,4-glucanasa de Coptotermes formosanus en Pichia pastoris por Jara Ochoa, Javier Omar

“…Recombinant cellulases could be useful in a bioethanol production program based on sugar, it could also have another applications such as the treatment of products in fermentation industry; besides provide extra information that could facilitate cellulolytic understanding in termites and therefore to the development of biopesticides.…”
Enlace del recurso

Synthesis and characterization of luminescent compounds of Sn IV with potential application as cellular marker in vitro por Pérez Pérez, Eduardo Gabriel

“…Recently it has been reported that organo-tin compounds have been used to stain cancer cells and also modulate the cytotoxicity modifying strategically the substituents that is bonded to tin. …”
Enlace del recurso