Search Results - ( (altars OR alsors) OR ( (alsos OR alta) OR (acto OR actos) ))*

Mesoamerican salamanders (Amphibia:Caudata) as a conservation focal group by García Padilla, Elí, DeSantis, Dominic L., Rocha, Arturo, Mata Silva, Vicente, Johnson, Jerry D., Fucsko, Lydia Allison, Lazcano, David, Wilson, Larry David

“…La mayoría de las especies del nivel de prioridad de conservación uno, están ubicadas en la Mesa Central, la Sierra Madre Occidental, la Sierra Madre Oriental, la Sierra Madre del Sur, la Sierra de Los Tuxtlas, las tierras altas de Centroamérica nuclear occidental y oriental, las tierras altas del Istmo de Centroamérica y las tierras altas del este de Panamá. …”
Get full text

Estrés escolar, estrategias de afrontamiento y consumo de alcohol, tabaco y marihuana en adolescentes de secundaria by Ortiz Guzmán, Diana Laura

“…En la dimensión de estresores escolares fue diferente significativamente por sexo (U=5033.00, p= .015) observándose puntuaciones más altas en los hombres (…”
Get full text

Estudio del uso de bauxita en la fabricación de refractarios AZS para hornos de vidrio by Guzmán Hernández, Ana María, Amaro Cortés, Claudia Elizabeth, Castillo Rodríguez, Guadalupe Alan

“…Los materiales refractarios más utilizado en hornos de fusión de vidrio son los ladrillos de AZS, los cuales son capaces de permanecer en contacto con vidrio fundido a muy altas temperaturas, sin embargo debido al alto costo de la zirconiaes necesario evaluar materias primas alternativas…”
Get full text

En defensa de la información y comunicación científica en Open Access gratuito en todos los procesos de publicación y lectura by Muela Meza, Zapopan Martín

“…It criticizes the 6 major oligopolies of the capitalist industries of the information and knowledge that in 2012 reported $ 78.65 US dollars billions of net profit (Time Warner, $ 29.7 billions US dlls; Bertelsmann, 22.25, Thomson Reuters, 13.27, Reed Elsevier, 10.13, Springer, 3.3 y Wiley, 1.8);it also criticizes how these oligopolies not only monopolize the global economic profit of the industries, but also how ideologically they monopolize news contents, entertainment, and even more worrisome the scientific aspects; it also criticizes the political power these oligopoly corporations have acquired that all over the world have forced most of the governments of the planets thanks to their invading military backup from their home countries to the sale of their monopolist pay-per-access information-knowledge that used to be free of charge and public (e.g. …”
Get full text

Resolución de conflictos, política educativa, estado de derecho, y geopolítica: Pasado y presente by de la Garza Montemayor, Daniel Javier

Get full text

Evaluación morfométrica de cervatos cola blanca (Odocoileus virginianus Zimmermann, 1780) criados en cautiverio by Uvalle Sauceda, José Isidro, Ontiveros Chacón, Juan Carlos, González Saldívar, Fernando, Moreno Degollado, Gustavo

“…En los análisis de correlación de estas últimas con el peso y la edad de los animales, se verificaron relaciones más altas con el peso que con la edad. En este contexto, la circunferencia torácica, presentó las más altas con r2 = 0.93 para el peso y r2 = 0.86 para la edad (P ≤ 0.05), y las más bajas con la longitud del fémur, r2 = 0.60 y r2 = 0.47 (P ≤ 0.05). …”
Get full text

Conociendo a Dras Tres by Sánchez Rodíguez, Oscar de Jesús

Get full text

Staphylococcal Cassette Chromosome mec (SCCmec) in coagulase negative staphylococci by Martínez Meléndez, Julio Adrián, Morfín Otero, Rayo, Villarreal Treviño, Licet, González González, Gloria María, Llaca Díaz, Jorge Martín, Rodríguez Noriega, Eduardo, Camacho Ortiz, Adrián, Garza González, Elvira

“…Methicillin resistance was first described in Staphylococcus aureus; it has also been reported in CoNS species. Methicillin resistance is conferred by expression of the mecA gene, contained within the staphylococcal cassette chromosome (SCCmec). mecA gene codes for the PBP2a protein which shows poor binding to beta-lactam antibiotics, so methicillin-resistant strains are resistant to beta-lactams. …”
Get full text

Consumer behavior as an advantage. by Esquivel Aguilar, Lizbeth, Véliz Reyna, Carolina, Rodríguez Chapa, Martin Alejandro, Cortés Sánchez, Ruth Yamilet

“…Our goal is to get as much customers as we can, so it’s important to give them what they want with the service they expect, so it’s of great importance to have quality, the customers can trust in the company, the product they offer has quality, so they’ll want to purchase what the company has to offer; but isn’t just about the quality, it’s also about the price, the customers always want the less expensive item, so it’s important to make a balance of how much it cost to produce the product and how much the customer it’s willing to pay, to archive the most convenient cost. …”
Get full text

Influence of the Capping Ligand on the Band Gap and Electronic Levels of PbS Nanoparticles through Surface Atomistic Arrangement Determination by García Gutiérrez, Diana Fabiola, Hernández Casillas, Laura Patricia, Cappellari, Maria Victoria, Fungo, Fernando, Martínez Guerra, Edgar, García Gutiérrez, Domingo Ixcóatl

“…These observations suggest that the electrooptical properties of PbS nanoparticles are not only determined by their size, through quantum confinement effects, but also strongly affected by the atomistic arrangement on the nanoparticle surface, which is determined by the capping ligand nature.…”
Get full text

Biosorption mechanism of Methylene Blue from aqueous solution onto White Pine (Pinus durangensis) sawdust: Effect of operating conditions by Salazar Rábago, Jacob Josafat, Leyva Ramos, Roberto, Rivera Utrilla, José, Ocampo Pérez, Raúl, Cerino Córdova, Felipe de Jesús

“…The adsorption capacity was drastically reduced by increasing the ionic strength of the solution corroborating with the fact that the electrostatic attractions played a crucial role in the adsorption of MB on NS. It was also shown that the MB was chemisorbed because the adsorption was not reversible. …”
Get full text

Academic e-tandems as a strategy for English language learning in a Mexican university by Serrato Salazar, Dan Isaí, Padilla Rodríguez, Brenda Cecilia

“…Participants discovered cultural differences but also common ground with their peers. The e-tandem experience was an effective strategy for foreign language learning.…”
Get full text

A new species of Decamastus Hartman, 1963 (Polychaeta: Capitellidae) from the Gulf of California, with remarks on its habitat by Solís Weiss, Vivianne, García Garza, María Elena, Hernández Alcántara, Pablo

“…The methyl green staining pattern of D. gracilis Hartman, 1963, the other species found in the Pacific, is also described and illustrated.…”

Effects of pericytes and colon cancer stem cells in the tumor microenvironment by Garza Treviño, Elsa Nancy, Delgado González, Paulina, Valencia Salgado, Carlos I., Martínez Garza, Alejandra Mayela

“…In recent years, it has been shown that the main reason for drug resistance is the presence of colon cancer stem cells (CSC). Pericytes are also capable of tumor homing and are important cellular components of the tumor microenvironment (TME), contributing to the formation of vessels and promoting metastasis; however, they have not been considered very important as a therapeutic target in cancer. …”
Get full text

A large hadrosaur from Presa San Antonio, Cerro del Pueblo Formation, Coahuila, Mexico by Rivera Sylva, Hector, Reyna Hernández, Rogelio, Silva Martínez, Luis Encarnación, Guzmán Gutiérrez, Rubén

“…The skeletal remains include partial elements from the pelvic girdle (left ilium, right pubis, ischium, and incomplete sacrum), a distal end of a left femur, almost complete right and left tibiae, right metatarsals II and IV, cervical and caudal vertebrae. Also, partially complete forelimb elements are present, which are still under preparation. …”
Get full text

Trimesic acid dimethyl sulfoxide solvate: space group revision by Bernès, Sylvain, Hernández, Guadalupe, Portillo, Roberto, Gutiérrez, René

“…The crystal structure contains layers of trimesic acid molecules lying on mirror planes. A mirror plane also passes through the S and O atoms of the solvent molecule. …”
Get full text

Conditional betas and Market re-definition: Revisiting the capital asset pricing model with Mexican data by Treviño Villarreal, María de Lourdes

“…The results suggested, however, that it is necessary to allow for time variations in betas as well in order to explain the variations of the monthly average returns. A size effect was also found, although it is not very important. In spite of the empirical support found for the conditional CAPM over the static CAPM, both specifications explain about half of the monthly average return variation, which calls for differences in the pricing of risk between developed and emerging countries…”
Get full text

Predicting the phase diagram of two-dimensional colloidal systems with long-range interactions by Mejía Rosales, Sergio, Gil Villegas, Alejandro, Ivlev, Boris I., Ruiz García, Jaime

“…However, the melting process can be also followed by a metastable route through a hexatic phase at low surface pressures and low temperatures, before crystalization occurs at higher surface pressure…”
Get full text

Two-stage melting of au-pd nanoparticles by Mejía Rosales, Sergio, Fernández Navarro, Carlos Javier, Pérez Tijerina, Eduardo, Montejano Carrizales, Juan Martín, Yacamán, Miguel José

“…We found that the melting transition temperature has a strong dependence on the relative concentrations of the atomic species. We also found that, previous to the melting transition, the outer layer of the nanoparticle gets disordered in what can be thought as a premelting stage, where Au atoms near the surface migrate to the surface and remain there after the particle melts as a whole. …”
Get full text

Determination of the cytotoxic capacity of organotin compounds derivatives from salicylidene benzoylhidrazone by Berrones Reyes, Jessica Cecilia

“…Conclusions and contribution: In this research work, we reported four new tin compounds derivatives from bezoylhidrazones, which were characterized by spectroscopic and spectrometric techniques and X-ray diffraction In the same manner, cytotoxic ability of each compound was studied and reported and compared with metaled base drugs like cisplatin and carboplatin. Also, in some cases it was possible to use their luminescent ability to study their intracellular behavior.…”
Get full text