Resultados de búsqueda - ( (altars OR alsors) OR ( (alsos OR alta) OR (acto OR actos) ))*

Effect of TEA on the blue emission of ZnO quantum dots with high quantum yield por Oliva, Jorge, Diaz Torres, Luis, Torres Castro, Alejandro, Salas, Pedro, Perez Mayen, Leonardo, De la Rosa, Elder

“…Spherical quantum dots with sizes ranging from 3 to 7 nm were obtained for concentrations from 0 to 0.7 ml. of TEA, whereas a mixture with oval-like nanoparticles was observed from concentrations above of 1.1 ml of TEA. It was also possible to control the values of the band gap in ZnO quantum dots depending on the content of TEA. …”
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Recent trends in internal migration in Nuevo Leon, Mexico por Bedoya Rangel, Yuliet, Jáuregui Díaz, José Alfredo, Avila Sánchez, María de Jesús, Picazzo Palencia, Esteban

“…As a reference, data derived from the 1970, 1990, 2000 and 2010 censuses are also used, because it is not possible to understand the present without understanding the past.…”
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Modeling of the photocatalytic reactor for blue wastewater degradation by a composite based on zinc oxide, green pigments, and phenolic resins. por Olivo Alanís, Daniel Simón

“…The proposed kinetic model, for further reactor design, takes into account the generation of electron-hole pair and the reactive oxygen species via redox reactions, as well as the attack of the reactive species to the pollutant. Also, the mechanistic contribution of the different operational conditions was studied with the novel proposed effective photocatalytic mechanism model. …”
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Physical Activity, Sports Practice, and Cognitive Functioning: The Current Research Status por Hernández Mendo, Antonio, Reigal, Rafael E., López Walle, Jeanette M., Serpa, Sidonio, Samdal, Oddrun, Morales Sanchéz, Verónica, Juárez Ruíz de Mier, Rocío, Tristán Rodríguez, José Leandro, Rosado, Antonio F., Flaco, Coral

“…The limitations of the findings were also discussed.…”
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Mini-review: Ferrite nanoparticles in the catalysis por Kharisov, Boris I., Rasika Dias, H.V., Kharissova, Oxana Vasilievna

“…Core–shell nanostructures with silica and titania are also used without loss of magnetic properties. The ferrite nanomaterials are obtained mainly by wet-chemical sol-gel or co-precipitation methods, more rarely by the sonochemical technique, mechanical high-energy ball milling, spark plasma sintering, microwave heating or hydrothermal route. …”
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Effect of the Notch-to-Depth Ratio on the Post-Cracking Behavior of Steel-Fiber-Reinforced Concrete por Valdez Aguilar, José Abelardo, Juárez Alvarado, César Antonio, Mendoza Rangel, José Manuel, Terán Torres, Bernardo Tadeo

“…The study concludes that the increase in the dosage leads to an improvement in the residual performance, even though an increase in the notch-to-depth ratio has also occurred.…”
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High strain rate characterization of thermoplastic fiber-reinforced composites under compressive loading por Ramírez Montes, Carolina, Reis, Vitor, Opelt, Carlos, Santiago, Rafael, Almeraya Calderón, Facundo, Donadon, Mauricio V, Gaona Tiburcio, Citlalli, Croche, René, Baltazar Zamora, Miguel Ángel

“…Fractography analysis was also performed to identify the main failure mechanisms induced at different strain rates.…”
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Freshwater fishes and water status in Mexico: A country-wide appraisal. por Contreras Balderas, Salvador, Ruiz Campos, Gorgonio, Schmitter Soto, J.J., Zambrano González, L., Varela Romero, A., Mendoza Alfaro, Roberto Eduardo, Ramírez Martínez, Carlos, Leija Tristán, M. A., Almada Villela, P., Hendrickson, D.A., Lyons, J.

“…In addition to the numbers of colonizing fishes, the burden of introduced exotics has also been growing. In 1904, only 4 species were recognized as exotics; by 1997 the number had increased to 94, and by 2008 to 115…”
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Relative humidity measurement based on a tapered, PVA-coated fiber optics multimode interference sensor por Quiñones Flores, Abraham A., Guzman Sepulveda, Jose R., Castillo Guzman, Arturo A.

“…The fabrication and testing of a tapered version with enhanced sensitivity is also presented. The native MMI sensor showed a sensitivity of 5.6nm/RH%, in the range from 87 RH% to 93 RH%, while the tapered one exhibited an increased sensitivity of 6.6nm/RH%, in the range from 91.5 RH% to 94 RH%. …”
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Needs and knowledge required by professors of higher education in the application of ICT in teaching: a survey. por Araiza Vázquez, María de Jesús, Dörfer, Claudia, Kutugata Estrada, Armando

“…In general, this study identified the needs and support that teachers require integrate ICT in their work and also made clear the need to establish, measures and criteria to guide the formation in use and application of technological tools.…”
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Influence of morphology in the catalytic activity of bioconjugated platinum nanostructures por Guerra Domínguez, Ricardo Javier, Burt, Justin L., Ferrer, Domingo A., Mejía Rosales, Sergio, Yacamán, Miguel José

“…The stability of these particles as catalysts was also studied. The results showed that Pt nanorods and Pt cuboctahedra particles were degraded after 24 h of reaction…”
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Modeling of the photocatalytic reactor for blue wastewater degradation by a composite based on zinc oxide, green pigments, and phenolic resins. por Olivo Alanís, Daniel Simón

“…The proposed kinetic model, for further reactor design, takes into account the generation of electron-hole pair and the reactive oxygen species via redox reactions, as well as the attack of the reactive species to the pollutant. Also, the mechanistic contribution of the different operational conditions was studied with the novel proposed effective photocatalytic mechanism model. …”
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CLASSROOM INTERACTION & INSTRUMENTAL TEXTS por Ancira, Sara

“…Instructions become "instrumental texts" according to Dendrinos (1992: 43) since they are "texts whose function is to provide the learner with information concerning the teaching and learning matter and with instructions. regarding what to do with. Also, this paper is intended to be an exercise of reflection about the nature of the written instructions used in class which we use every day in class. …”
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¿Qué atrae a las hembras de los mosquitos a oviponer? Los secretos detrás de sus elecciones por Flores Suárez, Adriana E., Gutiérrez Rodríguez, Selene M., Dávila Barboza, Jesús A., Rebollar Téllez, Eduardo Alfonso, Rodríguez Sánchez, Iram Pablo, Cerda Apresa, Daniela, López Monroy, Beatriz

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El perfil del administrador mexicano y su potencial de internacionalización (The Mexican manager’s profile and his international potential) por Guerra, P.

“…At the early stages of the research, we identified the urgency of the matter that the Mexican executives must be prepared to respond in a competitive fashion to the global market, and also we found out that there is a trend in which it is necessary to adopt a series of characteristics or profiles that are in line with export/ import activities. …”
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Estrategias para el desarrollo cinematográfico comercial mexicano hacia los Estados Unidos (Development strategies for Mexican commercial film to the United States) por Lozano Treviño, David Fernando, Barragán Codina, José Nicolás, Guerra Moya, Sergio Armando, Zúñiga, Jorge

“…The government incentives are also an appropriate way to impulse the film production, by economical funds or by supporting offices. …”
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Disability, gender and narratives of pain: The Caregivers’ perspectives por Estrada Esparza, Olga Nelly, Zárate Conde, Griselda Diana

“…This paper analyzes how caregivers’ narratives about pain and illness are constructed, and also what narrative identities are formed during the lengthy process of taking care of a woman with cerebral palsy, from the years of 1972 to 2014. …”
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Actividad contra Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae) de extractos metanólicos de plantas de uso medicinal en México por Pérez Treviño, Karla Carmelita, Galaviz, Lucio, Iracheta Villarreal, Jesús Mario, Lucero Velasco, Eliud Alonso, Molina Garza, Zinnia Judith

“…Currently there are only two medicines to treat this disease: beznidazol and nifurtimox, both effective if they are administrated in the acute phase of infection, although their effectiveness fades away in the chronic phase; it also induces significant side effects. The aim of this study is to screen the trypanocidal activity of methanolic extracts from Hematoxilum brasiletto, Marrubium vulgare, Schinus molle, and Cympongon citratus, against T. cruzi epimastigotes, followed by the chromatographic separation, and identification of active compounds of the best candidate by colored chemical reactions; furthermore, it was also determined their cytotoxic effect in human lymphocytes and the brine shrimp Artemia salina. …”
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Cell death effect of CD47-agonist peptides on different types of leukemia and in a murine model por Uscanga Palomeque, Ashanti Concepción

“…PKHB1 cytotoxicity was also selective in vivo, since none of tissues exposed to this peptide were damaged, and cell blood counts were significantly improved compared to untreated mice. …”
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Naturally-occurring stable isotopes as direct measures of larval feeding efficiency, nutrient incorporation and turnover por Le Vay, Lewis, Gamboa Delgado, Julián

“…Stable isotopes are non-hazardous markers that have been widely-used in assessing energy flow within aquatic ecosystems. Hatchery systems are also highly amenable to this approach, as they represent controlled mesocosms with a limited number of food sources and short planktonic food chains with rapid and measurable bioaccumulation of the heavier stable isotopes of carbon and nitrogen at each trophic step. …”
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